WO2021104481A1 - 显示基板、显示装置 - Google Patents
显示基板、显示装置 Download PDFInfo
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- WO2021104481A1 WO2021104481A1 PCT/CN2020/132389 CN2020132389W WO2021104481A1 WO 2021104481 A1 WO2021104481 A1 WO 2021104481A1 CN 2020132389 W CN2020132389 W CN 2020132389W WO 2021104481 A1 WO2021104481 A1 WO 2021104481A1
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- transistor
- substrate
- electrode
- line pattern
- orthographic projection
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- H10K59/10—OLED displays
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- H10K59/131—Interconnections, e.g. wiring lines or terminals
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- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
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- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
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- H—ELECTRICITY
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- H—ELECTRICITY
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Definitions
- the present disclosure relates to the field of display technology, and in particular to a display substrate and a display device.
- Organic Light-Emitting Diode (English: Organic Light-Emitting Diode, abbreviated as: OLED) display products are widely used in various fields due to their advantages of high brightness, low power consumption, fast response, high definition, good flexibility, and high luminous efficiency.
- the purpose of the present disclosure is to provide a display substrate and a display device.
- a first aspect of the present disclosure provides a display substrate.
- the display substrate includes a base and a plurality of sub-pixels arranged in an array on the base; the sub-pixels include:
- a data line pattern extending along the first direction
- a first shielding member at least part of the first shielding member extends along the first direction;
- a driving transistor a first transistor coupled to the gate of the driving transistor, and a second shielding part coupled to the first shielding part;
- the first transistor has a double gate structure, and the first transistor includes a fourth semiconductor pattern, a fifth semiconductor pattern, and a sixth conductor pattern respectively coupled to the fourth semiconductor pattern and the fifth semiconductor pattern, so The second electrode of the driving transistor is coupled to the fourth semiconductor pattern or the fifth semiconductor pattern;
- the orthographic projection of the second shielding component on the substrate at least partially overlaps the orthographic projection of the sixth conductor pattern on the substrate;
- At least part of the first shielding member is located between the second pole of the driving transistor and the data line pattern in the adjacent sub-pixel.
- the second shielding member is closer to the base than the first shielding member.
- the overlap area between the orthographic projection of the first shielding member on the substrate and the orthographic projection of the second electrode of the driving transistor on the substrate is E1
- the first projection of the driving transistor The area of the part where the orthographic projection of the diode on the substrate does not overlap with the orthographic projection of the first shielding component on the substrate is E2, E1 ⁇ E2.
- the minimum linear distance between the orthographic projection of the second electrode of the driving transistor on the substrate and the orthographic projection of the first shielding component on the substrate is L1;
- the minimum linear distance between the orthographic projection of the second electrode of the driving transistor on the substrate and the orthographic projection of the data line patterns in the adjacent sub-pixels on the substrate is L2; L1 ⁇ L2.
- the channel length of the driving transistor is L3, and L1 ⁇ L2 ⁇ L3.
- the minimum linear distance between the second electrode of the driving transistor and the data line pattern in the adjacent sub-pixel is L4, and the distance between the second electrode of the driving transistor and the first shielding member The minimum linear distance of is L5, L5 ⁇ L4.
- the sub-pixel further includes a connecting line, and the gate of the driving transistor is coupled to the second electrode of the first transistor through the connecting line;
- the orthographic projection of the second shielding member on the substrate is the orthographic projection of the end of the connecting wire coupled to the second electrode of the first transistor on the substrate, and the orthographic projection of the adjacent sub-pixel The data line pattern is between the orthographic projections on the substrate.
- the length of the first shielding member is greater than the length of the connecting line.
- the portion of the second electrode of the driving transistor that does not overlap the first shielding member extends in the first direction by a length of L6, and the first shielding member is in the first direction
- the extended length is L7; where L6 ⁇ L7.
- the sub-pixel further includes a fourth transistor, the first electrode of the fourth transistor is coupled to the data line pattern, and the second electrode of the fourth transistor is coupled to the first electrode of the driving transistor ;
- the orthographic projection of the second shielding member on the substrate does not overlap with the orthographic projection of the fourth transistor in the adjacent sub-pixel on the substrate.
- the first shielding component and the second shielding component are used to receive a first fixed potential signal.
- the sub-pixel further includes a storage capacitor, and the storage capacitor includes a first electrode plate and a second electrode plate; the first electrode plate is coupled to the gate of the driving transistor, and the second electrode The board is used to receive the second fixed potential signal;
- the orthographic projection of the second electrode of the driving transistor on the substrate includes a portion located in the gap.
- the first fixed potential signal is the same as the second fixed potential signal.
- the second electrode of the driving transistor is closer to the substrate than the first shielding member and the second shielding member.
- the active layer of the first transistor and the active layer of the driving transistor are arranged in the same layer, and have an integrated structure.
- the minimum linear distance between the first shielding component and the second pole of the driving transistor is greater than the minimum linear distance between the second shielding component and the sixth conductor pattern.
- the sub-pixel further includes:
- a second transistor the gate of the second transistor is coupled to the reset signal line pattern, the first electrode of the second transistor is coupled to the initialization signal line pattern, and the second electrode of the second transistor It is coupled to the gate of the driving transistor.
- the orthographic projection of the contact portion of the second shielding member and the first shielding member on the substrate does not intersect with the orthographic projection of the active layer of the second transistor on the substrate Stack
- the distance between the contact portion and the sixth conductor pattern is smaller than the distance from the second electrode of the driving transistor
- the distance between the orthographic projection of the contact portion on the substrate and the orthographic projection of the sixth conductor pattern on the substrate is less than the distance between the orthographic projection of the contact portion on the substrate and the orthographic projection of the data line pattern on the substrate distance.
- the sub-pixel further includes:
- a fifth transistor the gate of the fifth transistor is coupled to the light emission control signal line pattern, the first electrode of the fifth transistor is coupled to the power signal line pattern, and the second electrode of the fifth transistor is The pole is coupled with the first pole of the driving transistor.
- the sub-pixel further includes: a light-emitting element and a sixth transistor; the gate of the sixth transistor is coupled to the light-emission control signal line pattern, and the first electrode of the sixth transistor is connected to the driving The second electrode of the transistor is coupled, and the second electrode of the sixth transistor is coupled to the light-emitting element.
- a second aspect of the present disclosure provides a display substrate, including: a substrate and a plurality of sub-pixels arranged in an array on the substrate; the sub-pixels include:
- a data line pattern extending along the first direction
- a first shielding member at least part of the first shielding member extends along the first direction;
- a driving transistor a first transistor coupled to the gate of the driving transistor, and a second shielding part coupled to the first shielding part;
- the first transistor has a double gate structure, and the first transistor includes a fourth semiconductor pattern, a fifth semiconductor pattern, and a sixth conductor pattern respectively coupled to the fourth semiconductor pattern and the fifth semiconductor pattern, so The second electrode of the driving transistor is coupled to the fourth semiconductor pattern or the fifth semiconductor pattern;
- the linear distance between the portion of the second shielding member and the first shielding member in contact with the sixth conductor pattern is smaller than the linear distance between the portion and the second pole of the driving transistor
- the distance between the orthographic projection of the contact portion of the second shielding component and the first shielding component on the substrate and the orthographic projection of the sixth conductor pattern on the substrate is smaller than the orthographic projection of the contact portion on the substrate.
- the distance between the orthographic projection of the data line pattern on the substrate is smaller than the orthographic projection of the contact portion on the substrate.
- the second shielding member is closer to the base than the first shielding member.
- the overlap area between the orthographic projection of the first shielding member on the substrate and the orthographic projection of the second electrode of the driving transistor on the substrate is E1
- the first projection of the driving transistor The area of the part where the orthographic projection of the diode on the substrate does not overlap with the orthographic projection of the first shielding component on the substrate is E2, E1 ⁇ E2.
- the minimum linear distance between the orthographic projection of the second electrode of the driving transistor on the substrate and the orthographic projection of the first shielding component on the substrate is L1;
- the minimum linear distance between the orthographic projection of the second electrode of the driving transistor on the substrate and the orthographic projection of the data line patterns in the adjacent sub-pixels on the substrate is L2; L1 ⁇ L2.
- the length of the channel of the driving transistor in the second direction is L3, and L1 ⁇ L2 ⁇ L3.
- the minimum linear distance between the second electrode of the driving transistor and the data line pattern in the adjacent sub-pixel is L4, which is greater than the distance between the second electrode of the driving transistor and the first shielding member.
- the sub-pixel further includes a connecting line, and the gate of the driving transistor is coupled to the second electrode of the first transistor through the connecting line;
- the orthographic projection of the second shielding member on the substrate is the orthographic projection of the end of the connecting wire coupled to the second electrode of the first transistor on the substrate, and the orthographic projection of the adjacent sub-pixel The data line pattern is between the orthographic projections on the substrate.
- the length of the first shielding member is greater than the length of the connecting line.
- the portion of the second electrode of the driving transistor that does not overlap the first shielding member extends in the first direction by a length of L6, and the first shielding member is in the first direction
- the extended length is L7; where L6 ⁇ L7.
- the sub-pixel further includes a fourth transistor, the first electrode of the fourth transistor is coupled to the data line pattern, and the second electrode of the fourth transistor is coupled to the first electrode of the driving transistor ;
- the orthographic projection of the second shielding member on the substrate does not overlap with the orthographic projection of the fourth transistor in the adjacent sub-pixel on the substrate.
- the first shielding component and the second shielding component are used to receive a first fixed potential signal.
- the sub-pixel further includes a storage capacitor, and the storage capacitor includes a first electrode plate and a second electrode plate; the first electrode plate is coupled to the gate of the driving transistor, and the second electrode The board is used to receive the second fixed potential signal;
- the orthographic projection of the second electrode of the driving transistor on the substrate includes a portion located in the gap.
- the first fixed potential signal is the same as the second fixed potential signal.
- the second electrode of the driving transistor is closer to the substrate than the first shielding member and the second shielding member.
- the active layer of the first transistor and the active layer of the driving transistor are arranged in the same layer, and have an integrated structure.
- the minimum linear distance between the first shielding component and the second pole of the driving transistor is greater than the minimum linear distance between the second shielding component and the sixth conductor pattern.
- the sub-pixel further includes:
- a second transistor the gate of the second transistor is coupled to the reset signal line pattern, the first electrode of the second transistor is coupled to the initialization signal line pattern, and the second electrode of the second transistor It is coupled to the gate of the driving transistor.
- the orthographic projection of the portion of the second shielding member in contact with the first shielding member on the substrate does not overlap with the orthographic projection of the active layer of the second transistor on the substrate ;
- the minimum linear distance between the portion of the first shielding member extending in the first direction and the second shielding member is smaller than the distance between the data line pattern in adjacent sub-pixels and the second shielding member The minimum straight line distance.
- the sub-pixel further includes:
- a fifth transistor the gate of the fifth transistor is coupled to the light emission control signal line pattern, the first electrode of the fifth transistor is coupled to the power signal line pattern, and the second electrode of the fifth transistor is The pole is coupled with the first pole of the driving transistor.
- the sub-pixel further includes: a light-emitting element and a sixth transistor; the gate of the sixth transistor is coupled to the light-emission control signal line pattern, and the first electrode of the sixth transistor is connected to the driving The second electrode of the transistor is coupled, and the second electrode of the sixth transistor is coupled to the light-emitting element.
- a third aspect of the present disclosure provides a display device including the above-mentioned display substrate.
- FIG. 1 is a schematic structural diagram of a sub-pixel driving circuit provided by an embodiment of the disclosure
- FIG. 2 is a working timing diagram corresponding to the sub-pixel driving circuit provided by an embodiment of the disclosure
- FIG. 3 is a schematic diagram of a first layout of a sub-pixel driving circuit in a display substrate provided by an embodiment of the disclosure
- FIG. 4 is a schematic diagram of a first layout of an active film layer provided by an embodiment of the disclosure.
- FIG. 5 is a schematic diagram of a first layout of a first gate metal layer provided by an embodiment of the disclosure.
- FIG. 6 is a schematic diagram of a first layout of a second gate metal layer provided by an embodiment of the disclosure.
- FIG. 7 is a schematic diagram of a first layout of a source and drain metal layer provided by an embodiment of the disclosure.
- FIG. 8 is a schematic cross-sectional view along the A1A2 direction in FIG. 3;
- FIG. 9 is a schematic diagram of a second layout of a sub-pixel driving circuit in a display substrate provided by an embodiment of the disclosure.
- FIG. 10 is a schematic diagram of a third layout of a sub-pixel driving circuit in a display substrate provided by an embodiment of the disclosure.
- FIG. 11 is a schematic diagram of a fourth layout of a sub-pixel driving circuit in a display substrate provided by an embodiment of the disclosure.
- FIG. 12 is a schematic diagram of a fifth layout of a sub-pixel driving circuit in a display substrate provided by an embodiment of the disclosure.
- Fig. 13 is a schematic cross-sectional view along the direction B1B2 in Fig. 11;
- FIG. 14 is a schematic diagram of a sixth layout of a sub-pixel driving circuit in a display substrate provided by an embodiment of the disclosure.
- 15 is a schematic diagram of a first layout of a plurality of sub-pixels in a display substrate provided by an embodiment of the disclosure
- 16 is a schematic diagram of a seventh layout of a sub-pixel driving circuit in a display substrate provided by an embodiment of the disclosure.
- Fig. 17 is a schematic cross-sectional view taken along the direction C1C2 in Fig. 16;
- FIG. 18 is a schematic diagram of a second layout of an active film layer provided by an embodiment of the disclosure.
- FIG. 19 is a schematic diagram of an eighth layout of a sub-pixel driving circuit in a display substrate provided by an embodiment of the disclosure.
- 20 is a schematic diagram of a ninth layout of a sub-pixel driving circuit in a display substrate provided by an embodiment of the disclosure.
- FIG. 21 is a schematic diagram of a tenth layout of a sub-pixel driving circuit in a display substrate provided by an embodiment of the disclosure.
- FIG. 22 is a schematic cross-sectional view along the direction D1D2 in FIG. 21;
- FIG. 23 is a schematic diagram of the layout of the third metal layer
- FIG. 24 is a schematic diagram of a second layout of a plurality of sub-pixels in a display substrate provided by an embodiment of the disclosure.
- FIG. 25 is a schematic diagram of the crosstalk phenomenon occurring in the gate of the driving transistor in the related art.
- FIG. 26 is a schematic diagram of an eleventh layout of a sub-pixel driving circuit in a display substrate provided by an embodiment of the present disclosure
- FIG. 27 is a schematic diagram of a twelfth layout of a sub-pixel driving circuit in a display substrate provided by an embodiment of the disclosure.
- FIG. 28 is a schematic cross-sectional view along the direction D1D2 in two adjacent sub-pixel driving circuits.
- the main crosstalk is the crosstalk caused by the data line pattern located around the driving transistor in the sub-pixel driving circuit to the driving transistor.
- the sub-pixel driving When the circuit is laid out, the periphery of the driving transistor in the sub-pixel driving circuit also includes various transistors with other functions. These transistors are composed of multilayer conductive patterns. Moreover, the periphery of the driving transistor is also provided with various types of transistors for transmitting different signals. Similar to signal line patterns, when the sub-pixel driving circuit is working, the conductive patterns included in the various types of transistors and the signal changes on the various signal line patterns are likely to cause crosstalk to the driving transistor, thereby affecting the working performance of the driving transistor. Make an impact.
- the inventors of the present disclosure have discovered through research that the crosstalk that affects the operating performance of the driving transistor mainly includes: crosstalk caused by the coupling between the data line pattern and the gate of the driving transistor, and The crosstalk problem caused by the coupling between the data line pattern and the first electrode of the driving transistor.
- a pattern with a fixed potential can be formed on the first electrode of the driving transistor, and the first electrode of the driving transistor can be shielded by the pattern with the fixed potential to reduce the The coupling effect between the data line pattern near the first pole and the first pole of the driving transistor, thereby reducing the crosstalk problem caused by the data line pattern on the driving transistor, and enabling display products to achieve better display effects .
- one or more embodiments described herein correspond to a display substrate having a 7TlC (ie, 7 thin film transistors and 1 capacitor) sub-pixel driving circuit.
- the display substrate may include different sub-pixel driving circuits, for example, more or less than 7 thin film transistors, and one or more capacitors.
- the display substrate provided by the present disclosure includes a plurality of sub-pixels, and each sub-pixel may include: a gate line pattern GATE, a first reset signal line pattern RST1, a first initialization signal line pattern VINT1, a data line pattern DATA , The light emission control signal line pattern EM, the power signal line pattern VDD, the second reset signal line pattern RST2, and the second initialization signal line pattern VINT2.
- the sub-pixel driving circuit in each sub-pixel may include: a first transistor T1, a second transistor T2, a third transistor T3, a fourth transistor T4, a fifth transistor T5, a sixth transistor T6, a seventh transistor T7, and a storage capacitor Cst.
- FIG. 1 also includes a first capacitor C1, which is a parasitic capacitor.
- each transistor included in the sub-pixel driving circuit adopts P-type transistors, wherein the first transistor T1 has a double-gate structure, and the gate 201g of the first transistor T1 is coupled to the gate line pattern GATE , The source S1 of the first transistor T1 is coupled to the drain D3 of the third transistor T3, and the drain D1 of the first transistor T1 is coupled to the gate 203g of the third transistor T3.
- the second transistor T2 has a double-gate structure, the gate 202g of the second transistor T2 is coupled to the first reset signal line pattern RST1, the source S2 of the second transistor T2 is coupled to the first initialization signal line pattern VINT1, and the second transistor The drain D2 of T2 is coupled to the gate 203g of the third transistor T3.
- the gate 204g of the fourth transistor T4 is coupled to the gate line pattern GATE, the source S4 of the fourth transistor T4 is coupled to the data line pattern DATA, and the drain D4 of the fourth transistor T4 is coupled to the source of the third transistor T3 S3 is coupled.
- the gate 205g of the fifth transistor T5 is coupled to the light emission control signal line pattern EM, the source S5 of the fifth transistor T5 is coupled to the power signal line pattern VDD, and the drain D5 of the fifth transistor T5 is coupled to the source of the third transistor T3 ⁇ S3 is coupled.
- the gate 206g of the sixth transistor T6 is coupled to the light emission control signal line pattern EM, the source S6 of the sixth transistor T6 is coupled to the drain D3 of the third transistor T3, and the drain D6 of the sixth transistor T6 is coupled to the light emitting element OLED The anode is coupled.
- the gate 207g of the seventh transistor T7 is coupled to the second reset signal line pattern RST2, the drain D7 of the seventh transistor T7 is coupled to the anode of the light-emitting element OLED, and the source S7 of the seventh transistor T7 is coupled to the second initialization
- the signal line pattern VINT2 is coupled.
- the first plate Cst1 of the storage capacitor Cst is coupled to the gate 203g of the third transistor T3, and the second plate Cst2 of the storage capacitor Cst is coupled to the power signal line pattern VDD.
- each work cycle includes a first reset period P1, a write compensation period P2, a second reset period P3, and a light emitting period P4.
- the first reset signal input by the first reset signal line pattern RST1 is at an active level
- the second transistor T2 is turned on
- the initialization signal transmitted by the first initialization signal line pattern VINT1 is input to the third
- the gate 203g of the transistor T3 makes the gate-source voltage Vgs held on the third transistor T3 in the previous frame cleared to reset the gate 203g of the third transistor T3.
- the first reset signal is at an inactive level
- the second transistor T2 is turned off
- the gate scanning signal input by the gate line pattern GATE is at an active level, controlling the first transistor T1 and the fourth transistor T4 Turned on
- the data line pattern DATA writes a data signal and transmits it to the source S3 of the third transistor T3 through the fourth transistor T4.
- the first transistor T1 and the fourth transistor T4 are turned on, so that the third transistor T3 It is formed as a diode structure, so the first transistor T1, the third transistor T3, and the fourth transistor T4 work together to realize the threshold voltage compensation of the third transistor T3.
- the third transistor T3 can be controlled.
- the potential of the gate 203g finally reaches Vdata+Vth, where Vdata represents the voltage value of the data signal, and Vth represents the threshold voltage of the third transistor T3.
- the gate scan signal is at an inactive level
- the first transistor T1 and the fourth transistor T4 are both turned off
- the second reset signal input from the second reset signal line RST2 is at an active level, and controls the second reset signal
- the seven transistor T7 is turned on, and the initialization signal transmitted by the second initialization signal line pattern VINT2 is input to the anode of the light-emitting element OLED, and the light-emitting element OLED is controlled to not emit light.
- the light emission control signal written in the light emission control signal line pattern EM is at an effective level, and the fifth transistor T5 and the sixth transistor T6 are controlled to be turned on, so that the power signal transmitted by the power signal line pattern VDD is input to the third The source S3 of the transistor T3, and the gate 203g of the third transistor T3 is kept at Vdata+Vth, so that the third transistor T3 is turned on.
- the corresponding gate-source voltage of the third transistor T3 is Vdata+Vth-VDD, where VDD is The voltage value corresponding to the power signal flows to the anode of the corresponding light-emitting element OLED based on the leakage current generated by the gate-source voltage, and drives the corresponding light-emitting element OLED to emit light.
- each film layer corresponding to the sub-pixel drive circuit is as follows:
- the active film layer, the gate insulating layer, the first gate metal layer, the first interlayer insulating layer, the second gate metal layer, the second interlayer insulating layer, the first source and drain are stacked in sequence in the direction away from the substrate The metal layer and the third interlayer insulating layer.
- the active film layer is used to form the channel region (e.g. 101pg ⁇ 107pg), source formation area (e.g. 101ps ⁇ 107ps) and drain formation area (e.g. :101pd ⁇ 107pd), the active film layer corresponding to the source formation area and drain formation area will have better conductivity than the active film layer corresponding to the channel region due to the doping effect;
- the active film layer can be made of amorphous silicon , Polysilicon, oxide semiconductor materials, etc. It should be noted that the aforementioned source region and drain region may be regions doped with n-type impurities or p-type impurities.
- the active film layer corresponding to the source electrode formation region and the drain electrode formation region can be directly used as the corresponding source electrode or drain electrode, or metal materials can also be used to make contact with the source electrode formation region.
- a metal material is used to make the drain electrode in contact with the drain electrode formation region.
- the first gate metal layer is used to form the gates of the transistors in the sub-pixel driving circuit (e.g., 201g to 207g), and the gate line pattern GATE, the light emission control signal line pattern EM, and the first gate line pattern included in the display substrate.
- a reset signal line pattern RST1 and a second reset signal line pattern RST2 and other structures, the gate 203g of the third transistor T3 in each sub-pixel drive circuit is multiplexed as the first pole of the storage capacitor Cst in the sub-pixel drive circuit Board Cst1.
- the second gate metal layer is used to form the second plate Cst2 of the storage capacitor Cst, and the first initialization signal line pattern VINT1 and the second initialization signal line pattern VINT2 included in the display substrate.
- the first source-drain metal layer is used to form the source (e.g., S1 to S7) and drain (e.g., D1 to D7) of each transistor in the sub-pixel drive circuit, and display
- the substrate includes data line patterns (such as DATA1 and DATA2) and power signal line patterns VDD.
- the gate 201g of the first transistor T1 covers the first channel region 101pg, and the source S1 of the first transistor T1 is located in the first source formation region 101ps, The drain D1 of the first transistor T1 is located in the first drain formation region 101pd.
- the gate 202g of the second transistor T2 covers the second channel region 102pg, the source S2 of the second transistor T2 is located in the second source formation region 102ps, and the drain D2 of the second transistor T2 is located in the second drain formation region 102pd.
- the gate 203g of the third transistor T3 covers the third channel region 103pg, the source S3 of the third transistor T3 is located in the third source formation region 103ps, and the drain D3 of the third transistor T3 is located in the third drain formation region 103pd.
- the gate 204g of the fourth transistor T4 covers the fourth channel region 104pg, the source S4 of the fourth transistor T4 is located in the fourth source formation region 104ps, and the drain D4 of the fourth transistor T4 is located in the fourth drain formation region 104pd.
- the gate 205g of the fifth transistor T5 covers the fifth channel region 105pg, the source S5 of the fifth transistor T5 is located in the fifth source formation region 105ps, and the drain D5 of the fifth transistor T5 is located in the fifth drain formation region 105pd.
- the gate 206g of the sixth transistor T6 covers the sixth channel region 106pg, the source S6 of the sixth transistor T6 is located in the sixth source formation region 106ps, and the drain D6 of the sixth transistor T6 is located in the sixth drain formation region 106pd.
- the gate 207g of the seventh transistor T7 covers the seventh channel region 107pg, the source S7 of the seventh transistor T7 is located in the seventh source formation region 107ps, and the drain D7 of the seventh transistor T7 is located in the seventh drain formation region 107pd.
- the gate 203g of the third transistor T3 is multiplexed as the first plate Cst1 of the storage capacitor Cst, and the second plate Cst2 of the storage capacitor Cst is coupled to the power signal line pattern VDD.
- the connecting lines 401, 402, and 403 in FIG. 1 are all formed by the first source-drain metal layer, and the specific layout is shown in FIGS. 3 and 7.
- the first capacitor C1 in FIG. 1 is a parasitic capacitor.
- the orthographic projection of the second plate Cst2 of the storage capacitor Cst on the substrate is downwards from the fourth drain forming region 104pd corresponding to the fourth transistor T4.
- the plurality of sub-pixels included may be distributed in an array, and the plurality of sub-pixels may be divided into multiple rows of sub-pixels and multiple columns of sub-pixels, and each row of sub-pixels includes multiple rows arranged in the second direction.
- each column of sub-pixels includes a plurality of sub-pixels arranged along a first direction, the first direction intersects the second direction; the gate line pattern GATE and the first reset signal line pattern RST1 included in the sub-pixel
- the first initialization signal line pattern VINT1, the light emission control signal line pattern EM, the second reset signal line pattern RST2, and the second initialization signal line pattern VINT2 may all extend in the second direction; the data line pattern DATA included in the sub-pixel And the power supply signal line pattern VDD both extend in the first direction.
- the gate line pattern GATE located in the same row can be formed as a single gate line of an integrated structure
- the first reset signal line pattern RST1 located in the same row can be formed as a first reset signal line of an integrated structure
- the first initialization signal located in the same row
- the line pattern VINT1 can be formed as a first initialization signal line in an integrated structure
- the light emission control signal line pattern EM in the same row can be formed as a light emission control signal line in an integrated structure
- the second reset signal line pattern RST2 in the same row can be formed
- the second initialization signal line pattern VINT2 located in the same row may be formed as a second initialization signal line of an integrated structure.
- the data line pattern DATA located in the same column can be formed as a data line of an integrated structure
- the power signal line pattern VDD located in the same column can be formed as a power signal line of an integrated structure.
- the second reset signal line corresponding to one row of sub-pixels can be multiplexed into the first reset signal line corresponding to the next adjacent row of sub-pixels; similarly, the second reset signal line corresponding to one row of sub-pixels can be multiplexed.
- the initialization signal line is multiplexed into the first initialization signal line corresponding to the adjacent next row of sub-pixels.
- the gate 204g of the fourth transistor T4 and the first transistor T1 The gate 201g of the second transistor T2 and the gate 202g of the second transistor T2 are both located on the first side of the gate of the driving transistor (ie, the gate 203g of the third transistor T3), the gate of the seventh transistor T7 and the gate of the sixth transistor T6
- the pole 206g and the gate of the fifth transistor T5 are both located on the second side of the gate of the driving transistor.
- the first side and the second side of the gate of the driving transistor are opposite sides of the gate of the driving transistor in the first direction.
- the first side of the gate of the driving transistor may be It is the upper side of the gate of the driving transistor, and the second side of the gate of the driving transistor may be the lower side of the gate of the driving transistor T1.
- the lower side for example, the side of the display substrate for bonding the IC is the lower side of the display substrate, and the lower side of the gate of the driving transistor is the side of the gate of the driving transistor closer to the IC.
- the upper side is the opposite side of the lower side, for example, the side of the gate of the driving transistor further away from the IC.
- the gate 204g of the fourth transistor T4 and the gate 205g of the fifth transistor T5 are both located at the third of the gate of the driving transistor.
- the gate 201g of the first transistor T1 and the gate 206g of the sixth transistor T6 are both located on the fourth side of the gate of the driving transistor T1.
- the third side and the fourth side of the gate of the driving transistor are opposite sides of the gate of the driving transistor in the second direction X; further, the third side of the gate of the driving transistor may be The left side of the gate of the driving transistor and the fourth side of the gate of the driving transistor may be the right side of the gate of the driving transistor.
- the first data line pattern DATA1 is located on the left side of the power signal line pattern VDD
- the power signal line pattern VDD is located on the right side of the first data line pattern DATA1.
- an embodiment of the present disclosure provides a display substrate, including: a substrate 50 and a plurality of sub-pixels arranged in an array on the substrate 50; the sub-pixels include:
- a data line pattern extending along the first direction (DATA1 in Fig. 3);
- the initialization signal line pattern (VINT1 in FIG. 3), the initialization signal line pattern includes a portion extending in a second direction, the second direction intersects the first direction, and the initialization signal line pattern is used for transmission Initialization signal with fixed potential;
- a sub-pixel driving circuit includes: a driving transistor (T3 in FIG. 3), a first transistor T1 coupled to the gate of the driving transistor, and coupled to the initialization signal line pattern
- the above-mentioned display substrate generally includes a plurality of sub-pixels distributed in an array, and each sub-pixel includes: a data line pattern (DATA1 in FIG. 3) extending in a first direction, and an initialization signal at least partially extending in a second direction.
- Line pattern VINT1 in FIG. 3
- the data line pattern is used to transmit data signals
- the initialization signal line pattern is used to transmit initialization signals with a fixed potential
- the first direction includes the Y direction
- the second direction includes the X direction.
- the target data line pattern is: along the second direction, the data line pattern included in the next sub-pixel adjacent to the current sub-pixel.
- Each sub-pixel also includes a sub-pixel drive circuit, and a light-emitting element corresponding to the sub-pixel drive circuit one-to-one.
- the light-emitting element includes an anode, an organic light-emitting material layer, and a cathode that are stacked, wherein the anode of the light-emitting element is connected to the corresponding sub-pixel.
- the driving circuit is coupled, and the light-emitting element realizes light emission under the driving of the driving signal provided by the sub-pixel driving circuit.
- the gate 203g of the third transistor T3 (that is, the driving transistor) is connected to the first transistor through the connecting line 401.
- the drain D1 of the transistor T1 is coupled, and the drain D3 of the third transistor T3 is coupled to the source S1 of the first transistor T1.
- the orthographic projection of the first channel region 101pg of the first transistor T1 on the substrate 50 is the same as the orthographic projection of the target data line pattern (DATA2 in FIG. 3) on the substrate 50.
- the minimum distance between projections is smaller than the minimum distance between the orthographic projection of the third channel region 103pg of the third transistor T3 on the substrate 50 and the orthographic projection of the target data line pattern on the substrate 50. It is worth noting that the orthographic projection of the above-mentioned channel region (such as the first channel region 101pg and the third channel region 103pg) on the substrate 50 is in line with the target data line pattern (DATA2 in FIG. 3).
- the minimum distance between the orthographic projections on the substrate 50 means that the channel region is closest to the boundary of the target data line pattern in the orthographic projection on the substrate 50, and the target data line pattern (as shown in FIG. DATA2 in 3) The minimum distance between orthographic projections on the substrate 50.
- a first shielding component 404 coupled to the initialization signal line pattern (VINT1 in FIG. 3) is provided in the sub-pixel driving circuit, so that the first shielding component 404 has the same signal as the initialization signal.
- the first shielding component 404 can reduce the impact of the signal change transmitted on the target data line pattern on the performance of the first transistor T1, thereby reducing the driving transistor
- the influence of the coupling between the gate (ie 203g) and the target data line pattern reduces the problem of vertical crosstalk, so that the display substrate can obtain a better display effect when used for display.
- the above-mentioned coupling of the first shielding component 404 with the initialization signal line pattern not only makes the first shielding component 404 have a fixed potential, but also realizes that the voltage of the initialization signal line pattern is strengthened, so that the initialization signal line The voltage of the initialization signal transmitted on the pattern is more stable, which is more conducive to the working performance of the sub-pixel driving circuit.
- the first shielding part 404 may also be coupled with the power supply signal line pattern VDD included in the sub-pixel, so that the A shielding member 404 has the same fixed potential as the power signal transmitted by the power signal line pattern VDD.
- the orthographic projection of the second electrode of the driving transistor (that is, the drain D3 of the third transistor T3) on the substrate is different from the orthographic projection of the first shielding member 404 on the substrate.
- the smallest straight line distance between the two is L1; the smallest straight line between the orthographic projection of the second electrode of the driving transistor on the substrate and the orthographic projection of the data line pattern DATA2 in the adjacent sub-pixels on the substrate The distance is L2.
- the length of the channel of the driving transistor (that is, the third channel region 103pg) in the second direction is L3, and L1 ⁇ L2 ⁇ L3.
- the minimum linear distance between the second electrode of the driving transistor and the data line pattern (such as DATA2) in the adjacent sub-pixel is L4, and the second electrode of the driving transistor is The minimum linear distance between the first shielding components is L5, L5 ⁇ L4.
- the portion of the second electrode of the driving transistor that does not overlap with the first shielding member 404 extends in the first direction by a length of L6, and the first shielding member 404 is located in the The length extending in the first direction is L7; where L6 ⁇ L7.
- the active layer of the first transistor T1 and the active layer of the driving transistor are arranged in the same layer, and are an integrated structure, which can be formed in the same patterning process.
- the second electrode of the driving transistor and the sixth conductor pattern are arranged in the same layer, and have an integral structure.
- the second shielding part 301 is located between the active layer of the first transistor T1 and the first shielding part 404. Therefore, the minimum straight line between the first shielding part 404 and the second electrode of the driving transistor The distance is greater than the minimum linear distance between the second shielding component 301 and the sixth conductor pattern.
- the first shielding component 404 and the data line pattern (such as DATA2) in the adjacent sub-pixels are arranged in the same layer, and can be formed in the same patterning process.
- the minimum linear distance between the portion of the first shielding component 404 extending in the first direction and the second shielding component 301 is smaller than the data line pattern in the adjacent sub-pixels and the second shielding component 301 The minimum straight-line distance between.
- the above-mentioned method of coupling the first shielding member 404 and the power signal line pattern VDD can ensure that the first shielding member 404 has a fixed potential, but it will increase the parasitic capacitance generated by the power signal line pattern VDD. , Which makes the RC load of the power signal line pattern VDD larger, which is not conducive to reducing the vertical crosstalk phenomenon.
- the gate 201g of the first transistor T1 and the gate line pattern GATE are an integrated structure, and the gate 201g of the first transistor T1 is an integrated structure. A portion that forms an overlapping area with the active film layer in a direction perpendicular to the substrate.
- the plurality of sub-pixels include multiple rows of sub-pixels, and each row of sub-pixels includes a plurality of the sub-pixels arranged along the second direction, and are located in the same row of sub-pixels.
- the initialization signal line patterns of are sequentially coupled to form the initialization signal line corresponding to the row of sub-pixels; the first shielding member 404 extends along the first direction and is coupled to at least one of the initialization signal lines.
- the multiple sub-pixels may be divided into multiple rows of sub-pixels and multiple columns of sub-pixels, each row of sub-pixels includes multiple sub-pixels arranged in the second direction, and each column of sub-pixels includes multiple sub-pixels arranged in the first direction.
- the first direction and the second direction intersect; the initialization signal line patterns located in the same row of sub-pixels are sequentially coupled to form an initialization signal line corresponding to the row of sub-pixels.
- the above arrangement of the first shielding component 404 extending along the first direction and being coupled to at least one of the initialization signal lines not only enables the first shielding component 404 to reduce the effect of signal changes transmitted on the target data line pattern.
- the impact of the performance of the first transistor T1 thereby reducing the impact of the coupling between the gate of the driving transistor (ie 203g) and the target data line pattern, reducing the problem of vertical crosstalk, so that the display substrate can be used for display.
- the voltage of the initialization signal line is strengthened, so that the voltage of the initialization signal transmitted on the initialization signal line is more stable, which is more conducive to the working performance of the sub-pixel driving circuit.
- the first shielding component 404 is coupled to the two adjacent initialization signal lines.
- the coupling manner of the first shielding component 404 and the initialization signal line, and the specifics of the first shielding component 404 there are various structures and arrangements. Illustratively, as shown in FIG.
- the first shielding member 404 can be set to be coupled to the two adjacent initialization signal lines respectively; this arrangement makes the The orthographic projection of the first shielding component 404 on the substrate 50 is not only located between the orthographic projection of the first transistor T1 on the substrate 50 and the orthographic projection of the target data line pattern on the substrate 50; It also enables the orthographic projection of the first shielding member 404 on the substrate 50 to be located between the orthographic projection of the connecting line 401 on the substrate 50 and the orthographic projection of the target data line pattern on the substrate 50.
- the orthographic projection of the first shielding component 404 on the substrate 50 to be located on the orthographic projection of the driving transistor (ie, the third transistor T3) on the substrate 50 and the target data line
- the graphics are between the orthographic projections on the substrate 50.
- the above-mentioned setting method greatly reduces the first crosstalk generated between the target signal line pattern and the first transistor T1, and the second crosstalk generated between the target signal line pattern and the connecting line 401, thereby reducing The indirect crosstalk to the driving transistor caused by the above-mentioned first crosstalk and second crosstalk is eliminated.
- the above arrangement method also reduces the direct crosstalk between the target signal line pattern and the driving transistor, thereby better ensuring the working performance of the display substrate.
- the first shielding component 404 and the initialization signal line pattern are arranged in different layers, and the first shielding component 404 is disposed on the substrate 50.
- the orthographic projection on the substrate and the orthographic projection of the initialization signal line pattern on the substrate have a first overlap area, and the first shielding member 404 passes through the first via hole arranged in the first overlap area and the Initialize the signal line pattern coupling.
- the first shielding component 404 and the initialization signal line pattern can be arranged in the same layer or in different layers.
- the first shielding component 404 and the initialization signal line pattern are arranged in different layers, the The orthographic projection of the first shielding component 404 on the substrate 50 and the orthographic projection of the initialization signal line pattern on the substrate 50 both have a first overlap area, so that by setting the first overlap area in the first overlap area Via holes can realize the coupling between the first shielding component 404 and the initialization signal line.
- the above “the first shielding component 404 can be arranged on the same layer as the initialization signal line pattern” includes: the first shielding component 404 and the initialization signal line pattern are located on the same horizontal plane; the first shield The component 404 and the initialization signal line pattern are located in the same film layer; the first shielding component 404 and the initialization signal line pattern are both disposed on the surface of the same insulating layer facing away from the substrate; and the first shielding component 404 And the initialization signal line pattern is formed by a patterning process at least in at least one of a variety of situations.
- the first shielding member 404 and the data line pattern (DATA1 in FIG. 3) can be made of the same material.
- the display substrate includes a first interlayer insulating layer, and the first shielding member 404 and the data line pattern (DATA1 in FIG. 3) are both located in the first interlayer insulating layer. The layer faces away from the surface of the substrate.
- the first shielding member 404 is arranged in the above-mentioned manner, so that the first shielding member 404 and the data line pattern can be simultaneously formed on the back of the first interlayer insulating layer through a patterning process.
- the surface of the substrate avoids adding an additional patterning process for manufacturing the first shielding component 404, thereby simplifying the manufacturing process of the display substrate and saving the manufacturing cost.
- the sub-pixel driving circuit further includes a second transistor T2 coupled to the gate of the driving transistor, and the second transistor T2 includes:
- the orthographic projection of the third conductor pattern on the substrate 50 and the orthographic projection of the first grid pattern on the substrate 50, and the orthographic projection of the second grid pattern on the substrate 50 Do not overlap;
- the orthographic projection of the third conductor pattern on the substrate 50 at least partially overlaps the orthographic projection of the initialization signal line pattern (VINT1 in FIG. 3) on the substrate 50.
- the above-mentioned second transistor T2 has a double-gate structure, and the first semiconductor pattern and the second semiconductor pattern included in it are formed as the channel region of the second transistor T2 (corresponding to FIG. 7), the third conductor pattern 102px included in it is doped, and its conductivity is better than that of the first semiconductor pattern and the second semiconductor pattern.
- the second transistor T2 includes The first gate pattern and the second gate pattern cover the first semiconductor pattern and the second semiconductor pattern in a one-to-one correspondence, and can be used together as the gate 202g of the second transistor T2.
- the third conductor pattern 102px has good conductivity and is not covered by the gate pattern, it is easy to couple with other conductive patterns in the vicinity and cause crosstalk.
- the technical solution provided by the foregoing embodiment by setting the orthographic projection of the third conductor pattern on the substrate 50, and the initializing signal line pattern (VINT1 in FIG. 3) on the substrate 50 The projections overlap at least partially, so that the initialization signal line pattern can cover the third conductor pattern 102px. Since the initialization signal line pattern transmits an initialization signal with a fixed potential, the third conductor pattern is better reduced. The coupling effect between the conductive pattern 102px and other conductive patterns nearby makes the working performance of the display substrate more stable.
- the sub-pixel driving circuit further includes a first extension part extending from the first semiconductor pattern, and the conductivity of the first extension part is better than that of the first extension part.
- the first extension portion and the first semiconductor pattern can be fabricated in a single patterning process, and after the first semiconductor pattern is formed, the first extension portion is doped so that the first extension The conductivity of the part is better than that of the first semiconductor pattern.
- the first extension portion is set to the above structure, so that when the second transistor T2 is coupled to the gate of the first transistor T1 and the driving transistor through the first extension portion, It is more conducive to reducing the impact of the signal change transmitted on the target data line pattern on the performance of the first transistor T1 and the performance of the second transistor T2, thereby reducing the gate of the driving transistor (ie 203g) and the target data line pattern
- the influence of the coupling between them reduces the problem of vertical crosstalk, so that a better display effect can be obtained when the display substrate is used for display.
- the first transistor T1 includes:
- the first transistor has a double-gate structure, and the fourth semiconductor pattern and the fifth semiconductor pattern included in it are formed as the channel region of the first transistor (corresponding to FIG. 4 101pg), the sixth conductor pattern 101px included in it is doped, and its conductivity is better than that of the fourth semiconductor pattern and the fifth semiconductor pattern.
- the third gate of the first transistor The electrode pattern and the fourth gate pattern cover the fourth semiconductor pattern and the fifth semiconductor pattern in a one-to-one correspondence, and can be used together as the gate 201g of the first transistor T1.
- the orthographic projection of the first shielding component 404 on the substrate 50 at least partially overlaps the orthographic projection of the sixth conductor pattern 101px on the substrate 50.
- the orthographic projection of the first shielding component 404 on the substrate 50 is at least partially overlapped with the orthographic projection of the sixth conductor pattern 101px on the substrate 50, so that The first shielding component 404 can cover the sixth conductor pattern 101px, and because the first shielding component 404 has a fixed potential, the sixth conductor pattern 101px and other nearby patterns are better reduced.
- the coupling effect between the conductive patterns makes the working performance of the display substrate more stable.
- the sub-pixel driving circuit further includes: a second shielding part 301 coupled to the first shielding part 404, and the second shielding part
- the orthographic projection of 301 on the substrate 50 and the orthographic projection of the sixth conductor pattern 101px on the substrate 50 at least partially overlap.
- the above-mentioned orthographic projection of the second shielding component 301 on the substrate 50 is at least partially overlapped with the orthographic projection of the sixth conductor pattern 101px on the substrate 50, so that the second shielding component 301 can cover the sixth conductor pattern 101px, and since the second shielding part 301 is coupled to the first shielding part 404, the second shielding part 301 has a fixed potential, thereby better reducing The coupling effect between the sixth conductor pattern 101px and other nearby conductive patterns is reduced, so that the working performance of the display substrate is more stable.
- the first shielding member 404 and the second shielding member 301 both have a fixed potential, it is better to prevent or reduce the first transistor T1 and the target data line pattern ( For example, parasitic capacitance is formed between DATA2), which effectively prevents or reduces vertical crosstalk defects.
- the orthographic projection of the second shielding component 301 on the substrate 50 can be arranged to cover all of the orthographic projection of the sixth conductor pattern on the substrate 50.
- the orthographic projection of the second shielding component 301 on the substrate 50 is arranged to cover all of the orthographic projection of the sixth conductor pattern 101px on the substrate 50, so that the second shielding component 301 can
- the sixth conductor pattern 101px is completely covered, thereby minimizing the coupling effect between the sixth conductor pattern 101px and other conductive patterns nearby, and better improving the working stability of the display substrate.
- the second shielding component 301 and the first shielding component 404 are arranged in different layers, and the orthographic projection of the second shielding component 301 on the substrate 50 is in the same position as the first shielding component 404.
- the orthographic projection on the substrate 50 has a second overlapping area, and the second shielding member 301 and the first shielding member 404 are coupled through a second via provided in the second overlapping area.
- the second shielding component 301 and the first shielding component 404 can be arranged in the same layer or in different layers.
- the second shielding component 301 and the first shielding component 404 are arranged in different layers, it can be arranged
- the orthographic projection of the second shielding member 301 on the substrate 50 and the orthographic projection of the first shielding member 404 on the substrate 50 have a second overlapping area, so that a second overlapping area is provided in the second overlapping area.
- Two vias, so that the second shielding component 301 and the first shielding component 404 can be coupled through the second vias.
- the second shielding member 301 and the initialization signal line pattern may be made of the same material.
- the display substrate further includes a second interlayer insulating layer, and the second shielding member 301 and the initialization signal line pattern (VINT1 in FIG. 3) are both located on the second layer.
- the inter-insulating layer faces away from the surface of the substrate.
- the second shielding component 301 and the initialization signal line pattern are set on the same material as described above, and the second shielding component 301 and the initialization signal line pattern (VINT1 in FIG. 3) are both located at the same material.
- the second interlayer insulating layer faces away from the surface of the substrate, so that the second shielding member 301 and the initialization signal line pattern can be formed at the same time in the same patterning process, avoiding the addition of additional dedicated for manufacturing
- the manufacturing process of the second shielding component 301 simplifies the manufacturing process of the display substrate and saves the production cost.
- the sub-pixel further includes a power signal line pattern VDD
- the power signal line pattern VDD includes a portion extending along the first direction
- the sub-pixel driving circuit further includes A storage capacitor Cst, the first plate Cst1 in the storage capacitor Cst is multiplexed as the gate of the driving transistor, and the second plate Cst2 in the storage capacitor Cst is coupled to the power signal line pattern VDD,
- the second electrode plate Cst2 of the storage capacitor Cst is located on the surface of the second interlayer insulating layer facing away from the substrate.
- the storage capacitor Cst included in the sub-pixel driving circuit has a first electrode plate Cst1 and a second electrode plate Cst2, the first electrode plate Cst1 and the second electrode plate Cst2 are arranged oppositely, and the first electrode plate Cst2 is opposite to each other.
- a plate Cst1 is coupled to the gate of the driving transistor, and the second plate Cst2 is coupled to the power signal line pattern VDD.
- the first plate Cst1 can be directly multiplexed as the gate of the driving transistor, which not only ensures that the storage capacitor Cst is coupled to the gate of the driving transistor, but also reduces the number of components.
- the space occupied by the pixel drive circuit is more conducive to improving the resolution of the display substrate.
- the second electrode plate Cst2 in the storage capacitor Cst is arranged on the surface of the second interlayer insulating layer facing away from the substrate, so that the second electrode plate Cst2 in the storage capacitor Cst can be connected to the first electrode plate Cst2.
- the two shielding components 301 and the initialization signal line pattern are formed at the same time in the same patterning process, which greatly simplifies the manufacturing process of the display substrate and saves the production cost.
- the sub-pixel further includes: a reset signal line pattern (RST1 in FIG. 3) extending in a second direction intersecting the first direction, and the sub-pixel
- the drive circuit also includes:
- the second transistor T2 the first electrode (such as the source S2) of the second transistor T2 is coupled to the initialization signal line pattern (such as VINT1) through the first conductive connection portion 405, and the second transistor T2
- the second electrode (such as the drain D2) of the second transistor is coupled to the gate of the driving transistor, and the gate 202g of the second transistor T2 is coupled to the reset signal line pattern (such as RST1).
- the first conductive connection portion 405 can be made of a metal material, and can be formed in the same patterning process as the data line pattern.
- the above-mentioned orthographic projection of the first conductive connecting portion 405 on the substrate 50 covers at least part of the orthographic projection of the sixth conductor pattern 101px on the substrate 50, so that the first conductive connecting portion 405 can be aligned
- the sixth conductor pattern 101px is covered, and because the first conductive connection portion 405 is coupled to the initialization signal line pattern, the first conductive connection portion 405 has a fixed potential, thereby better reducing
- the coupling effect between the sixth conductive pattern 101px and other conductive patterns nearby makes the working performance of the display substrate more stable.
- the sub-pixel further includes: a gate line pattern GATE, a light emission control signal line pattern EM, a reset signal line pattern (RST1 in FIG. 3), and a power signal line pattern VDD;
- the gate line pattern GATE, the light emission control signal line pattern EM, and the reset signal line pattern all extend along the second direction, and the power signal line pattern VDD includes a portion extending along the first direction;
- the sub-pixel driving circuit further includes: a second transistor T2, a fourth transistor T4, a fifth transistor T5, a sixth transistor T6, and a seventh transistor T7;
- the gate of the driving transistor (such as the gate 203g of the third transistor T3) is coupled to the second electrode of the first transistor T1, and the first electrode of the driving transistor is connected to the second electrode of the fifth transistor T5. Pole coupled, the second pole of the driving transistor is coupled to the first pole of the first transistor T1;
- the gate 201g of the first transistor T1 is coupled to the gate line pattern GATE;
- the gate 202g of the second transistor T2 is coupled to the reset signal line pattern, the first electrode of the second transistor T2 is coupled to the initialization signal line pattern, and the second electrode of the second transistor T2 is coupled to the reset signal line pattern. Coupled to the gate of the driving transistor;
- the gate 204g of the fourth transistor T4 is coupled to the gate line pattern GATE, and the first electrode of the fourth transistor T4 is coupled to the data line pattern (DATA1 in FIG. 3).
- the second electrode of the four-transistor T4 is coupled to the first electrode of the driving transistor;
- the gate 205g of the fifth transistor T5 is coupled to the light emission control signal line pattern EM, and the first electrode of the fifth transistor T5 is coupled to the power signal line pattern VDD;
- the gate 206g of the sixth transistor T6 is coupled to the light emission control signal line pattern EM, the first electrode of the sixth transistor T6 is coupled to the second electrode of the driving transistor, and the sixth transistor T6 The second pole of is coupled to the light-emitting element in the sub-pixel;
- the gate 207g of the seventh transistor T7 is coupled to the reset signal line pattern (such as RST2) included in the next sub-pixel adjacent in the first direction, and the first electrode of the seventh transistor T7 is connected to the bottom
- the initialization signal line pattern (such as VINT2) included in one sub-pixel is coupled, and the second electrode of the seventh transistor T7 is coupled to the light-emitting element in the sub-pixel.
- a plurality of sub-pixels included may be distributed in an array, and the plurality of sub-pixels may be divided into multiple rows of sub-pixels and multiple columns of sub-pixels, and each row of sub-pixels includes a plurality of sub-pixels arranged along the second direction.
- Each column of sub-pixels includes a plurality of sub-pixels arranged along a first direction, and the first direction intersects the second direction.
- next sub-pixel adjacent in the first direction is the next adjacent sub-pixel located in the same column as the seventh transistor T7.
- Setting the sub-pixel and the sub-pixel driving circuit included in the above-mentioned structure can effectively reduce the layout space occupied by the sub-pixel driving circuit while ensuring the working performance of the sub-pixel driving circuit, which is beneficial to improve the display The resolution of the substrate.
- the gates of the transistors included in the sub-pixel driving circuit and the functional patterns coupled thereto may be formed as an integral structure.
- the gates of the first transistor and the gate of the fourth transistor are corresponding to each other.
- the coupled gate line pattern is an integrated structure
- the gate of the fifth transistor and the gate of the sixth transistor are both integrated with the correspondingly coupled light-emitting control signal line pattern
- the gate of the second transistor and the gate of the seventh transistor are integrated.
- the electrode and the correspondingly coupled reset signal line pattern form an integral structure.
- the first transistor T1 is used for threshold compensation of the driving transistor (such as the third transistor T3)
- the second transistor T2 is used for resetting the gate of the driving transistor
- the fourth transistor T4 is used for writing the data signal transmitted by the data line pattern
- the fifth transistor T5 is used for writing the power signal transmitted by the power signal line pattern to the first pole of the driving transistor
- the sixth transistor T6 is used for To control whether the corresponding light-emitting element emits light
- the seventh transistor T7 is used to reset the anode of the light-emitting element.
- the sub-pixel further includes: a gate line pattern GATE, a light emission control signal line pattern EM, a reset signal line pattern RST, and a power signal line pattern VDD; the gate line pattern GATE, the light emission control signal line Both the pattern EM and the reset signal line pattern RST extend in the second direction, the power signal line pattern VDD includes a portion extending in the first direction; the first shielding member 404 is on the substrate 50
- the orthographic projection of respectively overlaps the orthographic projection of the grid line pattern GATE on the substrate 50 and the orthographic projection of the light-emitting control signal line pattern EM on the substrate 50, respectively.
- the first shielding component 404 is laid out in the above-mentioned manner, so that the first shielding component 404 can isolate the first transistor T1 and the driving transistor from the target data line pattern (such as DATA2) Therefore, it is more beneficial to reduce the crosstalk caused by the change of the data signal on the target data line pattern to the first transistor T1 and the driving transistor.
- the target data line pattern such as DATA2
- the second electrode of the seventh transistor T7 is coupled to the light-emitting element in the sub-pixel in various ways.
- the anode of the light-emitting element is on the positive side of the substrate.
- the head shadow overlaps the orthographic projection of the second electrode of the seventh transistor T7 on the substrate, and the anode of the light-emitting element can pass through the via hole provided at the overlap with the seventh transistor T7.
- the second pole is coupled; or, the frontal shadow of the anode of the light-emitting element on the substrate does not overlap with the orthographic projection of the second electrode of the seventh transistor T7 on the substrate, and the sub
- the pixel driving circuit further includes a second conductive connection portion 406 and a third conductive connection portion 407.
- the orthographic projection of the anode of the light-emitting element on the substrate and the first end of the third conductive connection portion 407 are on the substrate.
- the orthographic projection on the top overlaps, the anode of the light-emitting element is coupled to the first end of the third conductive connection portion 407 through the via hole at the overlap, and the second end of the third conductive connection portion 407 is connected to the first end of the third conductive connection portion 407.
- the via hole at the overlap is coupled to the second end of the second conductive connection portion 406, so that the anode of the light-emitting element can be connected to the second conductive connection portion 406 and the third conductive connection portion 407.
- the second electrode of the seventh transistor T7 is coupled.
- the second conductive connection portion 406 may include an edge
- the anode of the light-emitting element may be located on the upper side of the light-emitting control signal line pattern in the corresponding sub-pixel
- the second electrode of the seventh transistor T7 may be located in the corresponding sub-pixel In the lower side of the light-emitting control signal line pattern.
- the light-emitting element in the first color sub-pixel includes a first anode 601, a first organic light-emitting material layer, and a first cathode that are sequentially stacked in a direction away from the substrate; the orthographic projection of the first anode 601 on the substrate corresponds to the The orthographic projection of the second electrode of the seventh transistor T7 on the substrate partially overlaps, and the first anode 601 passes through the via hole at the overlap to correspond to the second electrode of the seventh transistor T7. Coupling.
- the light-emitting element in the second color sub-pixel includes a second anode 602, a second organic light-emitting material layer, and a second cathode that are sequentially stacked in a direction away from the substrate; the positive head shadow of the second anode 602 on the substrate, and Correspondingly, the orthographic projection of the second electrode of the seventh transistor T7 on the substrate does not overlap, and the sub-pixel driving circuit in the second color sub-pixel further includes a second conductive connection portion 406 and a third conductive connection Portion 407, the second anode 602 is coupled to the corresponding second electrode of the seventh transistor T7 through the second conductive connection portion 406 and the third conductive connection portion 407.
- the light-emitting element in the third color sub-pixel includes a third anode 603, a third organic light-emitting material layer, and a third cathode that are sequentially stacked in a direction away from the substrate; the orthographic projection of the third anode 603 on the substrate corresponds to the The orthographic projection of the second electrode of the seventh transistor T7 on the substrate overlaps, and the third anode 603 is connected to the second electrode of the seventh transistor T7 through the via hole at the overlap. Coupling.
- the anode of the organic light-emitting element of each color sub-pixel includes a main body electrode and a connecting electrode, and the shape of the main body electrode is hexagonal.
- the first anode 601 of the first color sub-pixel includes a first body electrode 6011 and a first connection electrode 6012.
- the first body electrode 6011 and the first connection electrode 6012 may be an integral structure, and the first connection electrode 6012 is connected to the second electrode of the seventh transistor T7 of the first color sub-pixel through the connection hole.
- the second anode 602 of the second color sub-pixel includes a second main body electrode 6021 and a second connection electrode 6022.
- the second main body electrode 6021 and the second connection electrode 6022 may be an integral structure, and the second connection electrode 6022 is connected through a second conductivity.
- the portion 406 and the third conductive connection portion 407 are connected to the second electrode of the seventh transistor T7 of the second color sub-pixel.
- the third anode 603 of the third color sub-pixel includes a third main body electrode 6031 and a third connection electrode 6032.
- the third main body electrode 6031 and the third connection electrode 6032 may be an integral structure, and the third connection electrode 6032 is connected to the second electrode through the connection hole.
- the second electrode of the seventh transistor T7 of the three-color sub-pixel is connected.
- the first connection electrode 6012 of the first color sub-pixel is located on the side of the first main body electrode 6011 away from the data line pattern of the sub-pixel pixel circuit in the X direction, and located at the center of the first main electrode 6011 in the Y direction Far away from the side of the light emission control signal line of the sub-pixel pixel circuit.
- the first connection electrode 6012 and the first body electrode 6011 of the first color sub-pixel are arranged in the Y direction, and the first connection electrode 6012 is located at the lower right corner of the first body electrode 6011.
- the second connection electrode 6022 of the second color sub-pixel is located on the side of the second main body electrode 6021 far away from the data line of the sub-pixel pixel circuit in the X direction, and is located close to the center of the second main electrode 6021 in the Y direction.
- the sub-pixel pixel circuit emits light on one side of the control signal line.
- the second connection electrode 6022 and the second body electrode 6021 of the second color sub-pixel are arranged in the Y direction, and the second connection electrode 6022 is located at the lower right corner of the first body electrode 1231.
- the third connection electrode 6032 and the third main body electrode 6031 of the third color sub-pixel are arranged in the X direction, and the third connection electrode 6032 is located on the right side of the third main body electrode 6031, that is, close to the sub-pixel pixel circuit and close to the shielding line. On the side.
- the first body electrode 6011 of the first anode 601 of the first color sub-pixel covers the driving transistor of the first color sub-pixel
- the driving transistors of the two color sub-pixels basically do not overlap or partially overlap
- the third body electrode 6031 of the third anode 603 of the third color sub-image does not overlap the driving transistors of the third color sub-pixel.
- the first body electrode 6011 of the first color sub-pixel 601 overlaps the gate line pattern and the light-emitting control signal line pattern; the second color sub-pixel (for example, the red sub-pixel) The second body electrode 6021 overlaps the gate line pattern and the reset signal line pattern; the third body electrode 6031 of the third color sub-pixel (for example, the green sub-pixel) and the light-emitting control signal line pattern, the next row of sub-pixel drive circuit
- the reset signal line pattern and the initialization signal line pattern of the sub-pixel driving circuit in the next row overlap.
- the third body electrode 6031 of the third color sub-pixel overlaps with the pixel driving circuit area of the first color sub-pixel (for example, the blue sub-pixel) adjacent to it in the next row.
- the first body electrode 6011 of the first color sub-pixel 601 overlaps with a portion of the driving transistor of the adjacent third color sub-pixel, and the first body electrode 6011 of the first color sub-pixel 601 overlaps with its sub-pixel driving circuit.
- the data line patterns of the first shielding member 404, and the data line patterns in the sub-pixel driving circuit of the adjacent second color sub-pixel are all overlapped.
- the second body electrode 6021 of the second color sub-pixel does not overlap with the data line pattern in the sub-pixel drive circuit, and the power signal line pattern in the sub-pixel drive circuit and the adjacent sub-pixel drive of the third color sub-pixel are not overlapped.
- the power signal line pattern and the data line pattern in the circuit overlap.
- the third body electrode 6031 of the third color sub-pixel overlaps with the data line pattern and power signal line pattern in the sub-pixel driving circuit, and overlaps with the power signal line in the sub-pixel driving circuit of the adjacent second color sub-pixel.
- the first body electrode 6011 of the first color sub-pixel 601 is provided with a first connection electrode 6012 connected to the side close to the reset signal line pattern of the next row; the second body of the second color sub-pixel The side of the electrode 6021 close to the reset signal line pattern of the next row is provided with a second connecting electrode 6022 connected to it; the third body electrode 6031 of the third color sub-pixel is provided with a third connected to the side close to its seventh transistor T7. Connect the electrode 6032.
- the first connection electrode 6012 of the first color sub-pixel 601 overlaps with the second electrode of the seventh transistor T7 in the sub-pixel driving circuit.
- the second connection electrode 6022 of the second color sub-pixel does not overlap with the second electrode of the seventh transistor T7 in the sub-pixel driving circuit, and the second electrode of the seventh transistor T7 of the second color sub-pixel is not overlapped with the second electrode of the seventh transistor T7 of the second color sub-pixel.
- the third body electrode 6031 of the pixel overlaps.
- the third connection electrode 6032 of the third color sub-pixel overlaps the second electrode of the seventh transistor T7 in the sub-pixel driving circuit.
- an embodiment of the present disclosure also provides a display substrate, including: a substrate 50 and a plurality of sub-pixels arranged in an array on the substrate 50; the sub-pixels include:
- a data line pattern (such as: DATA1) extending along the first direction;
- An initialization signal line pattern (such as: VINT1), the initialization signal line pattern includes a portion extending in a second direction, the second direction intersects the first direction, and the initialization signal line pattern is used for transmission with a fixed potential
- a sub-pixel driving circuit includes: a driving transistor (such as a third transistor T3), a first transistor T1 coupled to the gate of the driving transistor, and coupled to the initialization signal line pattern
- the first shielding component 404 is used to form a coupling capacitor with the first electrode (ie source S1) of the first transistor T1, and the first shielding component 404 is orthographically projected on the substrate 50
- the orthographic projection of the target data line pattern (such as DATA2) on the substrate 50 does not overlap, and the next sub-pixel adjacent to the sub-pixel along the second direction includes the target data line pattern.
- the above-mentioned display substrate generally includes a plurality of sub-pixels distributed in an array, and each sub-pixel includes: a data line pattern (DATA1 in FIG. 3) extending in a first direction, and an initialization signal at least partially extending in a second direction.
- Line pattern VINT1 in FIG. 3
- the data line pattern is used to transmit data signals
- the initialization signal line pattern is used to transmit initialization signals with a fixed potential
- the first direction includes the Y direction
- the second direction includes the X direction.
- the target data line pattern is: along the second direction, the data line pattern included in the next sub-pixel adjacent to the current sub-pixel.
- Each sub-pixel also includes a sub-pixel drive circuit, and a light-emitting element corresponding to the sub-pixel drive circuit one-to-one.
- the light-emitting element includes an anode, an organic light-emitting material layer, and a cathode that are stacked, wherein the anode of the light-emitting element is connected to the corresponding sub-pixel.
- the driving circuit is coupled, and the light-emitting element realizes light emission under the driving of the driving signal provided by the sub-pixel driving circuit.
- the gate 203g of the third transistor T3 (that is, the driving transistor) is connected to the first transistor through the connecting line 401.
- the drain D1 of the transistor T1 is coupled, and the drain D3 of the third transistor T3 is coupled to the source S1 of the first transistor T1.
- the orthographic projection of the first channel region 101pg of the first transistor T1 on the substrate 50 is the same as the orthographic projection of the target data line pattern (DATA2 in FIG. 3) on the substrate 50.
- the minimum distance between projections is smaller than the minimum distance between the orthographic projection of the third channel region 103pg of the third transistor T3 on the substrate 50 and the orthographic projection of the target data line pattern on the substrate 50. It is worth noting that the orthographic projection of the above-mentioned channel region (such as the first channel region 101pg and the third channel region 103pg) on the substrate 50 is in line with the target data line pattern (DATA2 in FIG. 3).
- the minimum distance between the orthographic projections on the substrate 50 means that the channel region is closest to the boundary of the target data line pattern in the orthographic projection on the substrate 50, and the target data line pattern (as shown in FIG. DATA2 in 3) The minimum distance between orthographic projections on the substrate 50.
- a first shielding component 404 coupled to the initialization signal line pattern (VINT1 in FIG. 3) is provided in the sub-pixel driving circuit, so that the first shielding component 404 has the same signal as the initialization signal.
- the same fixed potential, and setting the first shielding part 404 can form a coupling capacitance with the first electrode (ie source S1) of the first transistor T1, so that the first shielding part 404 can reduce the target data line pattern
- the influence of the transmitted signal change on the performance of the first transistor T1, thereby reducing the influence of the coupling between the gate of the driving transistor (ie 203g) and the target data line pattern, reducing the problem of vertical crosstalk, making the display substrate Better display effect can be obtained when used for display.
- the above-mentioned coupling of the first shielding component 404 with the initialization signal line pattern not only makes the first shielding component 404 have a fixed potential, but also realizes that the voltage of the initialization signal line pattern is strengthened, so that the initialization signal line The voltage of the initialization signal transmitted on the pattern is more stable, which is more conducive to the working performance of the sub-pixel driving circuit.
- the first shielding part 404 may also be coupled with the power supply signal line pattern VDD included in the sub-pixel, so that the A shielding member 404 has the same fixed potential as the power signal transmitted by the power signal line pattern VDD.
- the above-mentioned method of coupling the first shielding member 404 and the power signal line pattern VDD can ensure that the first shielding member 404 has a fixed potential, but it will increase the parasitic capacitance generated by the power signal line pattern VDD. , Which makes the RC load of the power signal line pattern VDD larger, which is not conducive to reducing the vertical crosstalk phenomenon.
- the gate 201g of the first transistor T1 and the gate line pattern GATE are an integrated structure, and the gate 201g of the first transistor T1 is an integrated structure. A portion that forms an overlapping area with the active film layer in a direction perpendicular to the substrate.
- the plurality of sub-pixels include multiple rows of sub-pixels, and each row of sub-pixels includes a plurality of the sub-pixels arranged along the second direction, and are located in the same row of sub-pixels.
- the initialization signal line patterns of are sequentially coupled to form the initialization signal line corresponding to the row of sub-pixels; the first shielding member 404 extends along the first direction and is coupled to at least one of the initialization signal lines.
- the multiple sub-pixels may be divided into multiple rows of sub-pixels and multiple columns of sub-pixels, each row of sub-pixels includes multiple sub-pixels arranged in the second direction, and each column of sub-pixels includes multiple sub-pixels arranged in the first direction.
- the first direction and the second direction intersect; the initialization signal line patterns located in the same row of sub-pixels are sequentially coupled to form an initialization signal line corresponding to the row of sub-pixels.
- the above arrangement of the first shielding component 404 extending along the first direction and being coupled to at least one of the initialization signal lines not only enables the first shielding component 404 to reduce the effect of signal changes transmitted on the target data line pattern.
- the impact of the performance of the first transistor T1 thereby reducing the impact of the coupling between the gate of the driving transistor (ie 203g) and the target data line pattern, reducing the problem of vertical crosstalk, so that the display substrate can be used for display.
- the voltage of the initialization signal line is strengthened, so that the voltage of the initialization signal transmitted on the initialization signal line is more stable, which is more conducive to the working performance of the sub-pixel driving circuit.
- the first shielding component 404 is coupled to the two adjacent initialization signal lines.
- the coupling manner of the first shielding component 404 and the initialization signal line, and the specifics of the first shielding component 404 there are various structures and arrangements. Illustratively, as shown in FIG.
- the first shielding member 404 can be set to be coupled to the two adjacent initialization signal lines respectively; this arrangement makes the The orthographic projection of the first shielding component 404 on the substrate 50 is not only located between the orthographic projection of the first transistor T1 on the substrate 50 and the orthographic projection of the target data line pattern on the substrate 50; It also enables the orthographic projection of the first shielding member 404 on the substrate 50 to be located between the orthographic projection of the connecting line 401 on the substrate 50 and the orthographic projection of the target data line pattern on the substrate 50.
- the orthographic projection of the first shielding component 404 on the substrate 50 to be located on the orthographic projection of the driving transistor (ie, the third transistor T3) on the substrate 50 and the target data line
- the graphics are between the orthographic projections on the substrate 50.
- the above-mentioned setting method greatly reduces the first crosstalk generated between the target signal line pattern and the first transistor T1, and the second crosstalk generated between the target signal line pattern and the connecting line 401, thereby reducing The indirect crosstalk to the driving transistor caused by the above-mentioned first crosstalk and second crosstalk is eliminated.
- the above arrangement method also reduces the direct crosstalk generated between the target signal line pattern and the driving transistor, thereby better ensuring the working performance of the display substrate.
- the first shielding component 404 and the initialization signal line pattern are arranged in different layers, and the first shielding component 404 is disposed on the substrate 50.
- the orthographic projection on the substrate and the orthographic projection of the initialization signal line pattern on the substrate have a first overlap area, and the first shielding member 404 passes through the first via hole arranged in the first overlap area and the Initialize the signal line pattern coupling.
- the first shielding component 404 and the initialization signal line pattern can be arranged in the same layer or in different layers.
- the first shielding component 404 and the initialization signal line pattern are arranged in different layers, the The orthographic projection of the first shielding component 404 on the substrate 50 and the orthographic projection of the initialization signal line pattern on the substrate 50 both have a first overlap area, so that by setting the first overlap area in the first overlap area Via holes can realize the coupling between the first shielding component 404 and the initialization signal line.
- the above “the first shielding component 404 can be arranged on the same layer as the initialization signal line pattern” includes: the first shielding component 404 and the initialization signal line pattern are located on the same horizontal plane; the first shield The component 404 and the initialization signal line pattern are located in the same film layer; the first shielding component 404 and the initialization signal line pattern are both disposed on the surface of the same insulating layer facing away from the substrate; and the first shielding component 404 And the initialization signal line pattern is formed by a patterning process at least in at least one of a variety of situations.
- the first shielding member 404 and the data line pattern (DATA1 in FIG. 3) can be made of the same material.
- the display substrate includes a first interlayer insulating layer, and the first shielding member 404 and the data line pattern (DATA1 in FIG. 3) are both located in the first interlayer insulating layer. The layer faces away from the surface of the substrate.
- the first shielding member 404 is arranged in the above-mentioned manner, so that the first shielding member 404 and the data line pattern can be simultaneously formed on the back of the first interlayer insulating layer through a patterning process.
- the surface of the substrate avoids adding an additional patterning process for manufacturing the first shielding component 404, thereby simplifying the manufacturing process of the display substrate and saving the manufacturing cost.
- the sub-pixel driving circuit further includes a second transistor T2 coupled to the gate of the driving transistor, and the second transistor T2 includes:
- the orthographic projection of the third conductor pattern on the substrate 50 and the orthographic projection of the first grid pattern on the substrate 50, and the orthographic projection of the second grid pattern on the substrate 50 Do not overlap;
- the orthographic projection of the third conductor pattern on the substrate 50 at least partially overlaps the orthographic projection of the initialization signal line pattern (VINT1 in FIG. 3) on the substrate 50.
- the above-mentioned second transistor T2 has a double-gate structure, and the first semiconductor pattern and the second semiconductor pattern included in it are formed as the channel region of the second transistor T2 (corresponding to FIG. 7), the third conductor pattern 102px included in it is doped, and its conductivity is better than that of the first semiconductor pattern and the second semiconductor pattern.
- the second transistor T2 includes The first gate pattern and the second gate pattern cover the first semiconductor pattern and the second semiconductor pattern in a one-to-one correspondence, and can be used together as the gate 202g of the second transistor T2.
- the third conductor pattern 102px has good conductivity and is not covered by the gate pattern, it is easy to couple with other conductive patterns in the vicinity and cause crosstalk.
- the technical solution provided by the foregoing embodiment by setting the orthographic projection of the third conductor pattern on the substrate 50, and the initializing signal line pattern (VINT1 in FIG. 3) on the substrate 50 The projections overlap at least partially, so that the initialization signal line pattern can cover the third conductor pattern 102px. Since the initialization signal line pattern transmits an initialization signal with a fixed potential, the third conductor pattern is better reduced. The coupling effect between the conductive pattern 102px and other conductive patterns nearby makes the working performance of the display substrate more stable.
- the sub-pixel driving circuit further includes a first extension part extending from the first semiconductor pattern, and the conductivity of the first extension part is better than that of the first extension part.
- the first extension portion and the first semiconductor pattern can be fabricated in a single patterning process, and after the first semiconductor pattern is formed, the first extension portion is doped so that the first extension The conductivity of the part is better than that of the first semiconductor pattern.
- the first extension portion is set to the above structure, so that when the second transistor T2 is coupled to the gate of the first transistor T1 and the driving transistor through the first extension portion, It is more conducive to reducing the impact of the signal change transmitted on the target data line pattern on the performance of the first transistor T1 and the performance of the second transistor T2, thereby reducing the gate of the driving transistor (ie 203g) and the target data line pattern
- the influence of the coupling between them reduces the problem of vertical crosstalk, so that a better display effect can be obtained when the display substrate is used for display.
- the first transistor T1 includes:
- the first transistor has a double-gate structure, and the fourth semiconductor pattern and the fifth semiconductor pattern included in it are formed as the channel region of the first transistor (corresponding to FIG. 4 101pg), the sixth conductor pattern 101px included in it is doped, and its conductivity is better than that of the fourth semiconductor pattern and the fifth semiconductor pattern.
- the third gate of the first transistor The electrode pattern and the fourth gate pattern cover the fourth semiconductor pattern and the fifth semiconductor pattern in a one-to-one correspondence, and can be used together as the gate 201g of the first transistor T1.
- the orthographic projection of the first shielding component 404 on the substrate 50 at least partially overlaps the orthographic projection of the sixth conductor pattern 101px on the substrate 50.
- the orthographic projection of the first shielding component 404 on the substrate 50 is at least partially overlapped with the orthographic projection of the sixth conductor pattern 101px on the substrate 50, so that The first shielding component 404 can cover the sixth conductor pattern 101px, and because the first shielding component 404 has a fixed potential, the sixth conductor pattern 101px and other nearby patterns are better reduced.
- the coupling effect between the conductive patterns makes the working performance of the display substrate more stable.
- the sub-pixel driving circuit further includes: a second shielding part 301 coupled to the first shielding part 404, and the second shielding part
- the orthographic projection of 301 on the substrate 50 and the orthographic projection of the sixth conductor pattern 101px on the substrate 50 at least partially overlap.
- the above-mentioned orthographic projection of the second shielding component 301 on the substrate 50 is at least partially overlapped with the orthographic projection of the sixth conductor pattern 101px on the substrate 50, so that the second shielding component 301 can cover the sixth conductor pattern 101px, and since the second shielding part 301 is coupled to the first shielding part 404, the second shielding part 301 has a fixed potential, thereby better reducing The coupling effect between the sixth conductor pattern 101px and other nearby conductive patterns is reduced, so that the working performance of the display substrate is more stable.
- the first shielding member 404 and the second shielding member 301 both have a fixed potential, it is better to prevent or reduce the first transistor T1 and the target data line pattern ( For example, parasitic capacitance is formed between DATA2), which effectively prevents or reduces vertical crosstalk defects.
- the orthographic projection of the second shielding component 301 on the substrate 50 can be arranged to cover all of the orthographic projection of the sixth conductor pattern on the substrate 50.
- the orthographic projection of the second shielding component 301 on the substrate 50 is arranged to cover all of the orthographic projection of the sixth conductor pattern 101px on the substrate 50, so that the second shielding component 301 can
- the sixth conductor pattern 101px is completely covered, thereby minimizing the coupling effect between the sixth conductor pattern 101px and other conductive patterns nearby, and better improving the working stability of the display substrate.
- the second shielding component 301 and the first shielding component 404 are arranged in different layers, and the orthographic projection of the second shielding component 301 on the substrate 50 is in the same position as the first shielding component 404.
- the orthographic projection on the substrate 50 has a second overlapping area, and the second shielding member 301 and the first shielding member 404 are coupled through a second via provided in the second overlapping area.
- the second shielding component 301 and the first shielding component 404 can be arranged in the same layer or in different layers.
- the second shielding component 301 and the first shielding component 404 are arranged in different layers, it can be arranged
- the orthographic projection of the second shielding member 301 on the substrate 50 and the orthographic projection of the first shielding member 404 on the substrate 50 have a second overlapping area, so that a second overlapping area is provided in the second overlapping area.
- Two vias, so that the second shielding component 301 and the first shielding component 404 can be coupled through the second vias.
- the second shielding member 301 and the initialization signal line pattern may be made of the same material.
- the display substrate further includes a second interlayer insulating layer, and the second shielding member 301 and the initialization signal line pattern (VINT1 in FIG. 3) are both located on the second layer.
- the inter-insulating layer faces away from the surface of the substrate.
- the second shielding component 301 and the initialization signal line pattern are set on the same material as described above, and the second shielding component 301 and the initialization signal line pattern (VINT1 in FIG. 3) are both located at the same material.
- the second interlayer insulating layer faces away from the surface of the substrate, so that the second shielding member 301 and the initialization signal line pattern can be formed at the same time in the same patterning process, avoiding the addition of additional dedicated for manufacturing
- the manufacturing process of the second shielding component 301 simplifies the manufacturing process of the display substrate and saves the production cost.
- the sub-pixel further includes a power signal line pattern VDD
- the power signal line pattern VDD includes a portion extending along the first direction
- the sub-pixel driving circuit further includes A storage capacitor Cst, the first plate Cst1 in the storage capacitor Cst is multiplexed as the gate of the driving transistor, and the second plate Cst2 in the storage capacitor Cst is coupled to the power signal line pattern VDD,
- the second electrode plate Cst2 of the storage capacitor Cst is located on the surface of the second interlayer insulating layer facing away from the substrate.
- the storage capacitor Cst included in the sub-pixel driving circuit has a first electrode plate Cst1 and a second electrode plate Cst2, the first electrode plate Cst1 and the second electrode plate Cst2 are arranged oppositely, and the first electrode plate Cst2 is opposite to each other.
- a plate Cst1 is coupled to the gate of the driving transistor, and the second plate Cst2 is coupled to the power signal line pattern VDD.
- the first plate Cst1 can be directly multiplexed as the gate of the driving transistor, which not only ensures that the storage capacitor Cst is coupled to the gate of the driving transistor, but also reduces the number of components.
- the space occupied by the pixel drive circuit is more conducive to improving the resolution of the display substrate.
- the second electrode plate Cst2 in the storage capacitor Cst is arranged on the surface of the second interlayer insulating layer facing away from the substrate, so that the second electrode plate Cst2 in the storage capacitor Cst can be connected to the first electrode plate Cst2.
- the two shielding components 301 and the initialization signal line pattern are formed at the same time in the same patterning process, which greatly simplifies the manufacturing process of the display substrate and saves the production cost.
- the sub-pixel further includes: a reset signal line pattern (RST1 in FIG. 3) extending in a second direction intersecting the first direction, and the sub-pixel
- the drive circuit also includes:
- the second transistor T2 the first electrode (such as the source S2) of the second transistor T2 is coupled to the initialization signal line pattern (such as VINT1) through the first conductive connection portion 405, and the second transistor T2
- the second electrode (such as the drain D2) of the second transistor is coupled to the gate of the driving transistor, and the gate 202g of the second transistor T2 is coupled to the reset signal line pattern (such as RST1).
- the first conductive connection portion 405 can be made of a metal material, and can be formed in the same patterning process as the data line pattern.
- the above-mentioned orthographic projection of the first conductive connecting portion 405 on the substrate 50 covers at least part of the orthographic projection of the sixth conductor pattern 101px on the substrate 50, so that the first conductive connecting portion 405 can be aligned
- the sixth conductor pattern 101px is covered, and because the first conductive connection portion 405 is coupled to the initialization signal line pattern, the first conductive connection portion 405 has a fixed potential, thereby better reducing
- the coupling effect between the sixth conductive pattern 101px and other conductive patterns nearby makes the working performance of the display substrate more stable.
- the sub-pixel further includes: a gate line pattern GATE, a light emission control signal line pattern EM, a reset signal line pattern (RST1 in FIG. 3), and a power signal line pattern VDD;
- the gate line pattern GATE, the light emission control signal line pattern EM, and the reset signal line pattern all extend along the second direction, and the power signal line pattern VDD includes a portion extending along the first direction;
- the sub-pixel driving circuit further includes: a second transistor T2, a fourth transistor T4, a fifth transistor T5, a sixth transistor T6, and a seventh transistor T7;
- the gate of the driving transistor (such as the gate 203g of the third transistor T3) is coupled to the second electrode of the first transistor T1, and the first electrode of the driving transistor is connected to the second electrode of the fifth transistor T5. Pole coupled, the second pole of the driving transistor is coupled to the first pole of the first transistor T1;
- the gate 201g of the first transistor T1 is coupled to the gate line pattern GATE;
- the gate 202g of the second transistor T2 is coupled to the reset signal line pattern, the first electrode of the second transistor T2 is coupled to the initialization signal line pattern, and the second electrode of the second transistor T2 is coupled to the reset signal line pattern. Coupled to the gate of the driving transistor;
- the gate 204g of the fourth transistor T4 is coupled to the gate line pattern GATE, and the first electrode of the fourth transistor T4 is coupled to the data line pattern (DATA1 in FIG. 3).
- the second electrode of the four-transistor T4 is coupled to the first electrode of the driving transistor;
- the gate 205g of the fifth transistor T5 is coupled to the light emission control signal line pattern EM, and the first electrode of the fifth transistor T5 is coupled to the power signal line pattern VDD;
- the gate 206g of the sixth transistor T6 is coupled to the light emission control signal line pattern EM, the first electrode of the sixth transistor T6 is coupled to the second electrode of the driving transistor, and the sixth transistor T6 The second pole of is coupled to the light-emitting element in the sub-pixel;
- the gate 207g of the seventh transistor T7 is coupled to the reset signal line pattern (such as RST2) included in the next sub-pixel adjacent in the first direction, and the first electrode of the seventh transistor T7 is connected to the bottom
- the initialization signal line pattern (such as VINT2) included in one sub-pixel is coupled, and the second electrode of the seventh transistor T7 is coupled to the light-emitting element in the sub-pixel.
- a plurality of sub-pixels included may be distributed in an array, and the plurality of sub-pixels may be divided into multiple rows of sub-pixels and multiple columns of sub-pixels, and each row of sub-pixels includes a plurality of sub-pixels arranged along the second direction.
- Each column of sub-pixels includes a plurality of sub-pixels arranged along a first direction, and the first direction intersects the second direction.
- next sub-pixel adjacent in the first direction is the next adjacent sub-pixel located in the same column as the seventh transistor T7.
- Setting the sub-pixel and the sub-pixel driving circuit included in the above-mentioned structure can effectively reduce the layout space occupied by the sub-pixel driving circuit while ensuring the working performance of the sub-pixel driving circuit, which is beneficial to improve the display The resolution of the substrate.
- the gates of the transistors included in the sub-pixel driving circuit and the functional patterns coupled thereto may be formed as an integral structure.
- the gates of the first transistor and the gate of the fourth transistor are corresponding to each other.
- the coupled gate line pattern is an integrated structure
- the gate of the fifth transistor and the gate of the sixth transistor are both integrated with the correspondingly coupled light-emitting control signal line pattern
- the gate of the second transistor and the gate of the seventh transistor are integrated.
- the electrode and the correspondingly coupled reset signal line pattern form an integral structure.
- the first transistor T1 is used for threshold compensation of the driving transistor (such as the third transistor T3)
- the second transistor T2 is used for resetting the gate of the driving transistor
- the fourth transistor T4 is used for writing the data signal transmitted by the data line pattern
- the fifth transistor T5 is used for writing the power signal transmitted by the power signal line pattern to the first pole of the driving transistor
- the sixth transistor T6 is used for To control whether the corresponding light-emitting element emits light
- the seventh transistor T7 is used to reset the anode of the light-emitting element.
- the sub-pixel further includes: a gate line pattern GATE, a light emission control signal line pattern EM, a reset signal line pattern RST, and a power signal line pattern VDD; the gate line pattern GATE, the light emission control signal line Both the pattern EM and the reset signal line pattern RST extend in the second direction, the power signal line pattern VDD includes a portion extending in the first direction; the first shielding member 404 is on the substrate 50
- the orthographic projection of respectively overlaps the orthographic projection of the grid line pattern GATE on the substrate 50 and the orthographic projection of the light-emitting control signal line pattern EM on the substrate 50, respectively.
- the first shielding component 404 is laid out in the above-mentioned manner, so that the first shielding component 404 can isolate the first transistor T1 and the driving transistor from the target data line pattern (such as DATA2) Therefore, it is more beneficial to reduce the crosstalk caused by the change of the data signal on the target data line pattern to the first transistor T1 and the driving transistor.
- the target data line pattern such as DATA2
- the second electrode of the seventh transistor T7 is coupled to the light-emitting element in the sub-pixel in various ways.
- the anode of the light-emitting element is on the positive side of the substrate.
- the head shadow overlaps the orthographic projection of the second electrode of the seventh transistor T7 on the substrate, and the anode of the light-emitting element can pass through the via hole provided at the overlap with the seventh transistor T7.
- the second pole is coupled; or, the frontal shadow of the anode of the light-emitting element on the substrate does not overlap with the orthographic projection of the second electrode of the seventh transistor T7 on the substrate, and the sub
- the pixel driving circuit further includes a second conductive connection portion 406 and a third conductive connection portion 407.
- the orthographic projection of the anode of the light-emitting element on the substrate and the first end of the third conductive connection portion 407 are on the substrate.
- the orthographic projection on the top overlaps, the anode of the light-emitting element is coupled to the first end of the third conductive connection portion 407 through the via hole at the overlap, and the second end of the third conductive connection portion 407 is connected to the first end of the third conductive connection portion 407.
- the via hole at the overlap is coupled to the second end of the second conductive connection portion 406, so that the anode of the light-emitting element can be connected to the second conductive connection portion 406 and the third conductive connection portion 407.
- the second electrode of the seventh transistor T7 is coupled.
- the second conductive connection portion 406 may include an edge
- the anode of the light-emitting element may be located on the upper side of the light-emitting control signal line pattern in the corresponding sub-pixel
- the second electrode of the seventh transistor T7 may be located in the corresponding sub-pixel In the lower side of the light-emitting control signal line pattern.
- the light-emitting element in the first color sub-pixel includes a first anode 601, a first organic light-emitting material layer, and a first cathode that are sequentially stacked in a direction away from the substrate; the orthographic projection of the first anode 601 on the substrate corresponds to the The orthographic projection of the second electrode of the seventh transistor T7 on the substrate partially overlaps, and the first anode 601 passes through the via hole at the overlap to correspond to the second electrode of the seventh transistor T7. Coupling.
- the light-emitting element in the second color sub-pixel includes a second anode 602, a second organic light-emitting material layer, and a second cathode that are sequentially stacked in a direction away from the substrate; the positive head shadow of the second anode 602 on the substrate, and Correspondingly, the orthographic projection of the second electrode of the seventh transistor T7 on the substrate does not overlap, and the sub-pixel driving circuit in the second color sub-pixel further includes a second conductive connection portion 406 and a third conductive connection Portion 407, the second anode 602 is coupled to the corresponding second electrode of the seventh transistor T7 through the second conductive connection portion 406 and the third conductive connection portion 407.
- the light-emitting element in the third color sub-pixel includes a third anode 603, a third organic light-emitting material layer, and a third cathode that are sequentially stacked in a direction away from the substrate; the orthographic projection of the third anode 603 on the substrate corresponds to the The orthographic projection of the second electrode of the seventh transistor T7 on the substrate overlaps, and the third anode 603 is connected to the second electrode of the seventh transistor T7 through the via hole at the overlap. Coupling.
- the anode of the organic light-emitting element of each color sub-pixel includes a main body electrode and a connecting electrode, and the shape of the main body electrode is hexagonal.
- the first anode 601 of the first color sub-pixel includes a first body electrode 6011 and a first connection electrode 6012.
- the first body electrode 6011 and the first connection electrode 6012 may be an integral structure, and the first connection electrode 6012 is connected to the second electrode of the seventh transistor T7 of the first color sub-pixel through the connection hole.
- the second anode 602 of the second color sub-pixel includes a second main body electrode 6021 and a second connection electrode 6022.
- the second main body electrode 6021 and the second connection electrode 6022 may be an integral structure, and the second connection electrode 6022 is connected through a second conductivity.
- the portion 406 and the third conductive connection portion 407 are connected to the second electrode of the seventh transistor T7 of the second color sub-pixel.
- the third anode 603 of the third color sub-pixel includes a third main body electrode 6031 and a third connection electrode 6032.
- the third main body electrode 6031 and the third connection electrode 6032 may be an integral structure, and the third connection electrode 6032 is connected to the second electrode through the connection hole.
- the second electrode of the seventh transistor T7 of the three-color sub-pixel is connected.
- the first connection electrode 6012 of the first color sub-pixel is located on the side of the first main body electrode 6011 away from the data line pattern of the sub-pixel pixel circuit in the X direction, and located at the center of the first main electrode 6011 in the Y direction Far away from the side of the light emission control signal line of the sub-pixel pixel circuit.
- the first connection electrode 6012 and the first body electrode 6011 of the first color sub-pixel are arranged in the Y direction, and the first connection electrode 6012 is located at the lower right corner of the first body electrode 6011.
- the second connection electrode 6022 of the second color sub-pixel is located on the side of the second main body electrode 6021 far away from the data line of the sub-pixel pixel circuit in the X direction, and is located close to the center of the second main electrode 6021 in the Y direction.
- the sub-pixel pixel circuit emits light on one side of the control signal line.
- the second connection electrode 6022 and the second body electrode 6021 of the second color sub-pixel are arranged in the Y direction, and the second connection electrode 6022 is located at the lower right corner of the first body electrode 1231.
- the third connection electrode 6032 and the third main body electrode 6031 of the third color sub-pixel are arranged in the X direction, and the third connection electrode 6032 is located on the right side of the third main body electrode 6031, that is, close to the sub-pixel pixel circuit and close to the shielding line. On the side.
- the first body electrode 6011 of the first anode 601 of the first color sub-pixel covers the driving transistor of the first color sub-pixel
- the driving transistors of the two color sub-pixels basically do not overlap or partially overlap
- the third body electrode 6031 of the third anode 603 of the third color sub-image does not overlap the driving transistors of the third color sub-pixel.
- the first body electrode 6011 of the first color sub-pixel 601 overlaps the gate line pattern and the light-emitting control signal line pattern; the second color sub-pixel (for example, the red sub-pixel) The second body electrode 6021 overlaps the gate line pattern and the reset signal line pattern; the third body electrode 6031 of the third color sub-pixel (for example, the green sub-pixel) and the light-emitting control signal line pattern, the next row of sub-pixel drive circuit
- the reset signal line pattern and the initialization signal line pattern of the sub-pixel driving circuit in the next row overlap.
- the third body electrode 6031 of the third color sub-pixel overlaps with the pixel driving circuit area of the first color sub-pixel (for example, the blue sub-pixel) adjacent to it in the next row.
- the first body electrode 6011 of the first color sub-pixel 601 overlaps with a portion of the driving transistor of the adjacent third color sub-pixel, and the first body electrode 6011 of the first color sub-pixel 601 overlaps with its sub-pixel driving circuit.
- the data line patterns of the first shielding member 404, and the data line patterns in the sub-pixel driving circuit of the adjacent second color sub-pixel are all overlapped.
- the second body electrode 6021 of the second color sub-pixel does not overlap with the data line pattern in the sub-pixel drive circuit, and the power signal line pattern in the sub-pixel drive circuit and the adjacent sub-pixel drive of the third color sub-pixel are not overlapped.
- the power signal line pattern and the data line pattern in the circuit overlap.
- the third body electrode 6031 of the third color sub-pixel overlaps with the data line pattern and power signal line pattern in the sub-pixel driving circuit, and overlaps with the power signal line in the sub-pixel driving circuit of the adjacent second color sub-pixel.
- the first body electrode 6011 of the first color sub-pixel 601 is provided with a first connection electrode 6012 connected to the side close to the reset signal line pattern of the next row; the second body of the second color sub-pixel The side of the electrode 6021 close to the reset signal line pattern of the next row is provided with a second connecting electrode 6022 connected to it; the third body electrode 6031 of the third color sub-pixel is provided with a third connected to the side close to its seventh transistor T7. Connect the electrode 6032.
- the first connection electrode 6012 of the first color sub-pixel 601 overlaps with the second electrode of the seventh transistor T7 in the sub-pixel driving circuit.
- the second connection electrode 6022 of the second color sub-pixel does not overlap with the second electrode of the seventh transistor T7 in the sub-pixel driving circuit, and the second electrode of the seventh transistor T7 of the second color sub-pixel is not overlapped with the second electrode of the seventh transistor T7 of the second color sub-pixel.
- the third body electrode 6031 of the pixel overlaps.
- the third connection electrode 6032 of the third color sub-pixel overlaps the second electrode of the seventh transistor T7 in the sub-pixel driving circuit.
- the embodiments of the present disclosure also provide a display device, including the display substrate provided in the above-mentioned embodiments.
- the first shielding member 404 can reduce the influence of the signal change transmitted on the target data line pattern on the performance of the first transistor T1, thereby reducing the gate of the driving transistor ( That is, the influence of the coupling between 203g) and the target data line pattern reduces the problem of vertical crosstalk, so that the display substrate can obtain a better display effect when used for display.
- the first shielding member 404 is coupled to the initialization signal line pattern. In addition to making the first shielding member 404 have a fixed potential, the initialization signal line is also strengthened. The voltage of the pattern makes the voltage of the initialization signal transmitted on the initialization signal line pattern more stable, which is more conducive to the working performance of the sub-pixel driving circuit.
- the display device provided by the embodiment of the present disclosure includes the above-mentioned display substrate, it also has the above-mentioned beneficial effects, which will not be repeated here.
- the display device may be any product or component with a display function, such as a TV, a monitor, a digital photo frame, a mobile phone, a tablet computer, and so on.
- the embodiments of the present disclosure also provide a manufacturing method of a display substrate, which is used to manufacture the display substrate provided in the above embodiment, and the manufacturing method includes:
- a plurality of sub-pixels distributed in an array are fabricated on the substrate 50; the sub-pixels include:
- a data line pattern extending along the first direction (DATA1 in Fig. 3);
- the initialization signal line pattern (VINT1 in FIG. 3), the initialization signal line pattern includes a portion extending in a second direction, the second direction intersects the first direction, and the initialization signal line pattern is used for transmission Initialization signal with fixed potential;
- a sub-pixel driving circuit includes: a driving transistor (T3 in FIG. 3), a first transistor T1 coupled to the gate of the driving transistor, and coupled to the initialization signal line pattern
- a first shielding member 404 coupled to the initialization signal line pattern (VINT1 in FIG. 3) is provided in the sub-pixel driving circuit, so that The first shielding member 404 has the same fixed potential as the initialization signal, and the orthographic projection of the first shielding member 404 on the substrate 50 is set, which is located on the front of the first transistor T1 on the substrate 50.
- the projection and the target data line pattern (DATA2 in FIG. 3) are between the orthographic projection on the substrate 50, so that the first shielding member 404 can reduce the impact on the first transistor T1 due to the signal change transmitted on the target data line pattern.
- the first shielding member 404 is coupled to the initialization signal line pattern, in addition to making the first shielding member 404 have a fixed potential, it also realizes The voltage of the initialization signal line pattern is strengthened, so that the voltage of the initialization signal transmitted on the initialization signal line pattern is more stable, which is more conducive to the working performance of the sub-pixel driving circuit.
- an embodiment of the present disclosure also provides a display substrate, including: a substrate 50 and a plurality of sub-pixels arranged in an array on the substrate 50; the sub-pixels include:
- a data line pattern (such as DATA1) extending along the first direction;
- the sub-pixel driving circuit includes: two switching transistors (such as the fourth transistor T4 and the fifth transistor T5), a driving transistor (such as the third transistor T3) and a storage capacitor Cst; the storage capacitor Cst
- the first plate Cst1 is coupled to the gate of the driving transistor (such as the gate 203g of the third transistor T3), and the second plate Cst2 of the storage capacitor Cst is coupled to the power signal line pattern VDD;
- the second poles of the two switching transistors (such as the drain D4 of the fourth transistor T4 and the drain D5 of the fifth transistor T5) are connected to the first pole of the driving transistor (such as the source S3 of the third transistor T3) Coupled, the orthographic projection of the second electrode of at least one of the two switching transistors on the substrate 50 at least partially overlaps the orthographic projection of the power signal line pattern VDD on the substrate 50, And at least partially overlap with the orthographic projection of the second plate Cst2 of the storage capacitor Cst on the substrate 50.
- the above-mentioned display substrate generally includes a plurality of sub-pixels distributed in an array, and each sub-pixel includes: a data line pattern (such as DATA1) extending in a first direction, and a power signal line pattern VDD extending at least partially in the first direction;
- a data line pattern such as DATA1
- VDD power signal line pattern
- the first direction includes the Y direction
- the second direction includes the X direction.
- the power signal line pattern VDD is a grid-like structure, and the power signal line pattern VDD of the grid-like structure includes an edge along the first A part that extends in one direction.
- Each sub-pixel also includes a sub-pixel drive circuit, and a light-emitting element corresponding to the sub-pixel drive circuit one-to-one.
- the light-emitting element includes an anode, an organic light-emitting material layer, and a cathode that are stacked, wherein the anode of the light-emitting element is connected to the corresponding sub-pixel.
- the driving circuit is coupled, and the light-emitting element realizes light emission under the driving of the driving signal provided by the sub-pixel driving circuit.
- the gate 203g of the third transistor T3 (that is, the driving transistor) is multiplexed as the first plate of the storage capacitor Cst Cst1, the second electrode plate Cst2 of the storage capacitor Cst is located on the side of the first electrode plate Cst1 facing away from the substrate, and the orthographic projection of the first electrode plate Cst1 on the substrate is the same as that of the first electrode plate Cst1 on the substrate.
- the orthographic projection of the diode Cst2 on the substrate at least partially overlaps, and the orthographic projection of the second electrode Cst2 on the substrate is switched with at least one of the fourth transistor T4 and the fifth transistor T5.
- the orthographic projection of the second electrode of the transistor on the substrate 50 and the orthographic projection of the power signal line pattern VDD on the substrate 50 at least partially overlap.
- the second electrode plate Cst2 of the storage capacitor Cst is coupled to the power signal line pattern VDD, so that the second electrode of the storage capacitor Cst
- the board Cst2 has the same fixed potential as the power signal transmitted on the power signal line pattern VDD; at the same time, it is set that the second poles of the two switching transistors are both coupled to the first poles of the driving transistors, and the two The orthographic projection of the second electrode of at least one of the switching transistors on the substrate 50 at least partially overlaps with the orthographic projection of the power signal line pattern VDD on the substrate 50, and overlaps with the storage capacitor Cst.
- the orthographic projection of the second plate Cst2 of the storage capacitor Cst on the substrate 50 at least partially overlaps, so that the second plate Cst2 of the storage capacitor Cst and the power signal line pattern VDD can both be used for at least one of the two switching transistors.
- the second pole of the switching transistor is shielded, thereby reducing the signal on other conductive patterns (such as signal line patterns) located around at least one of the two switching transistors.
- the crosstalk phenomenon generated by the second pole of the at least one switching transistor further reduces the crosstalk phenomenon generated on the first pole of the driving transistor.
- the second pole of the two switching transistors (such as the fourth transistor T4 and the fifth transistor T5) and the first pole of the driving transistor (such as the third transistor T3) are One-piece structure
- the one-piece structure includes a first conductive portion 108 extending along the first direction, the orthographic projection of the first conductive portion 108 on the substrate, and the power signal line pattern VDD on the substrate
- the orthographic projection, and the orthographic projection of the second plate Cst2 of the storage capacitor Cst on the substrate 50 there is a first overlap area, and the first overlap area and the data line pattern (such as DATA1) are in the The orthographic projections on the substrate 50 do not overlap.
- the second poles of the two switching transistors and the first pole of the driving transistor are formed into an integrated structure, so that the second poles of the two switching transistors and the first pole of the driving transistor can pass through Formed by a patterning process.
- the integrated structure is provided with a first conductive portion 108 extending along the first direction, and the orthographic projection of the data line pattern on the substrate is located on the first conductive portion 108
- the orthographic projection on the substrate is far from the side of the orthographic projection of the driving transistor on the substrate, and the orthographic projection of the first conductive portion 108 on the substrate is consistent with the power signal line pattern
- the orthographic projection of VDD on the substrate and the orthographic projection of the second plate Cst2 of the storage capacitor Cst on the substrate 50 have a first overlapping area, so that the second plate Cst2 of the storage capacitor Cst and the
- the power signal line pattern VDD can all shield the first conductive portion 108, reduce the signal transmitted on the data line pattern, and cause crosstalk to the first conductive portion 108, thereby reducing the impact on the driving transistor.
- the first pole of the crosstalk phenomenon is provided with a first conductive portion 108 extending along the first direction, and the orthographic projection of the data line pattern on the substrate is located
- an orthographic projection of the first electrode of the driving transistor on the substrate 50 can be set, and the second electrode plate Cst2 of the storage capacitor Cst is located on the substrate 50.
- the interior of the orthographic projection can be set, and the second electrode plate Cst2 of the storage capacitor Cst is located on the substrate 50.
- the above arrangement allows the second electrode plate Cst2 of the storage capacitor Cst to completely cover the first electrode of the driving transistor, thereby more effectively reducing the signal transmitted on the data line pattern, which has a negative effect on the driving transistor.
- the first pole of the crosstalk phenomenon is the second electrode plate Cst2 of the storage capacitor Cst.
- the sub-pixel further includes: a gate line pattern GATE and a light-emission control signal line pattern EM that both extend in a second direction, and the second direction is the same as the first Intersect in one direction;
- the sub-pixel driving circuit further includes: a first transistor T1 and a sixth transistor T6; the two switching transistors include a fourth transistor T4 and a fifth transistor T5;
- the gate 204g of the fourth transistor T4 is coupled to the gate line pattern GATE, the first electrode of the fourth transistor T4 is coupled to the data line pattern (such as DATA1), and the fourth transistor T4
- the second electrode is coupled to the second electrode of the fifth transistor T5, the gate 205g of the fifth transistor T5 is coupled to the light emission control signal line pattern EM, and the first electrode of the fifth transistor T5 is coupled to The power signal line pattern VDD is coupled;
- the gate 201g of the first transistor T1 is coupled to the gate line pattern GATE, the second electrode of the first transistor T1 is coupled to the gate of the driving transistor, and the first transistor T1 is coupled to the gate line pattern GATE.
- the first electrode of the sixth transistor T6 and the second electrode of the driving transistor form an integral structure, and the integral structure includes a second conductive portion 109 extending along the first direction.
- the sixth transistor T6 The gate 206g of T6 is coupled to the light-emitting control signal line pattern EM, and the second pole of the sixth transistor T6 is coupled to the light-emitting element in the sub-pixel;
- the minimum distance between the orthographic projections of the channel region is smaller than the minimum distance between the orthographic projection of the channel region on the substrate 50 and the orthographic projection of the second conductive portion 109 on the substrate.
- a plurality of sub-pixels included may be distributed in an array, and the plurality of sub-pixels may be divided into multiple rows of sub-pixels and multiple columns of sub-pixels, and each row of sub-pixels includes a plurality of sub-pixels arranged along the second direction.
- Each column of sub-pixels includes a plurality of sub-pixels arranged along a first direction, and the first direction intersects the second direction.
- the sub-pixel driving circuits included in each column of sub-pixels are located between the data line patterns included in the column of sub-pixels and the data line patterns included in the next column of sub-pixels adjacent to the column of sub-pixels.
- the minimum distance between the orthographic projection of the channel region of the driving transistor on the substrate and the orthographic projection of the first conductive portion 108 on the substrate is Refers to: along the second direction, in the orthographic projection of the channel region of the driving transistor on the substrate, the boundary closest to the orthographic projection of the first conductive portion 108 on the substrate, and the The distance between the orthographic projection of the first conductive portion 108 on the substrate; in the second direction described above, the orthographic projection of the channel region on the substrate 50 is in line with the second conductive portion 109
- the minimum distance between the orthographic projections on the substrate refers to: in the orthographic projection of the drive transistor on the substrate along the second direction, the channel region of the drive transistor is closest to the second conductive portion 109 in the orthographic projection on the substrate. The distance between the boundary of the orthographic projection on the substrate and the orthographic projection of the second conductive portion 109 on the substrate.
- the sub-pixel driving circuit included in each sub-pixel is located between two adjacent data line patterns (such as DATA1 and DATA2). Since the data transmitted on the two data line patterns will change, And when the data changes, it is easy to cause crosstalk to the gate of the driving transistor in the sub-pixel driving circuit, as shown in FIG. 25, which further affects the working stability of the driving transistor.
- data line patterns such as DATA1 and DATA2
- the fourth transistor T4, the fifth transistor T5, the first transistor T1, and the sixth transistor T6 are all arranged in the peripheral area of the driving transistor, and arranged
- One of the two data line patterns (such as DATA1) is located on the side of the fourth transistor T4 and the fifth transistor T5 away from the driving transistor, and the other of the two data line patterns ( Such as DATA2) is located on the side of the first transistor T1 and the sixth transistor T6 away from the driving transistor; at the same time, by setting the channel region of the driving transistor (103pg in FIG.
- the channel region of the drive transistor The minimum distance between the orthographic projection on the substrate and the orthographic projection of the first conductive portion 108 on the substrate is smaller than the orthographic projection of the channel region on the substrate, and the first The minimum distance between the orthographic projections of the two conductive portions 109 on the substrate; the channel region of the driving transistor can be increased to the greatest extent while ensuring a proper distance from DATA1. The distance between the track area and DATA2, thereby better reducing the crosstalk generated by the DATA2 to the driving transistor.
- the crosstalk caused by DATA1 to the channel region of the driving transistor can be effectively reduced. Therefore, the above In the technical solution provided by the embodiment, even if the channel region of the driving transistor is close to the DATA, the crosstalk effect is relatively small.
- the orthographic projection of the first conductive portion 108 on the substrate is similar to the The orthographic projection of the power signal line pattern VDD on the substrate and the orthographic projection of the second plate Cst2 of the storage capacitor Cst on the substrate 50 have a first overlapping area, so that the second overlap area of the storage capacitor Cst Both the electrode plate Cst2 and the power signal line pattern VDD can shield the first conductive portion 108, reduce the signal transmitted on DATA1, generate crosstalk to the first conductive portion 108, and reduce the impact on the drive. Crosstalk between the first pole of the transistor and the channel region.
- the sub-pixel further includes: a gate line pattern GATE and a light emission control signal line pattern EM that both extend in a second direction, the second direction intersects the first direction ;
- the sub-pixel driving circuit further includes: a first transistor T1 and a sixth transistor T6; the two switching transistors include a fourth transistor T4 and a fifth transistor T5;
- the gate 204g of the fourth transistor T4 is coupled to the gate line pattern GATE, the first electrode of the fourth transistor T4 is coupled to the data line pattern (such as DATA1), and the fourth transistor T4
- the second electrode is coupled to the second electrode of the fifth transistor T5, the gate 205g of the fifth transistor T5 is coupled to the light emission control signal line pattern EM, and the first electrode of the fifth transistor T5 is coupled to The power signal line pattern VDD is coupled;
- the gate 201g of the first transistor T1 is coupled to the gate line pattern GATE, the second electrode of the first transistor T1 is coupled to the gate of the driving transistor, and the first transistor T1 is coupled to the gate line pattern GATE.
- the first electrode of the sixth transistor T6 and the second electrode of the driving transistor form an integral structure, and the integral structure includes a second conductive portion 109 extending along the first direction.
- the sixth transistor T6 The gate 206g of T6 is coupled to the light-emitting control signal line pattern EM, and the second pole of the sixth transistor T6 is coupled to the light-emitting element in the sub-pixel;
- the orthographic projection of the channel region of the drive transistor (103pg in FIG. 18) on the substrate, and the orthographic projection of the first conductive portion 108 on the substrate is in the same direction as the second conductive portion 109
- the first pole and the second pole of the drive transistor each include a first portion extending along the second direction, and the first portion of the first pole extends along the second direction The length is different from the length of the first part of the second pole extending in the second direction.
- the first pole and the second pole of the driving transistor described above each include a first portion extending in the second direction, and the length of the first portion of the first pole in the second direction is the same as the length of the first pole in the second direction.
- the lengths of the first part of the two poles that extend along the second direction are different, which specifically include the following two situations:
- the length H1 of the first portion of the first pole along the second direction is smaller than the length H2 of the first portion of the second pole extending along the second direction, so that the channel of the driving transistor
- the area (103pg in FIG. 18) is close to the data line pattern (such as DATA1) included in the sub-pixel where it is located, and far away from the data line pattern (such as DATA1) included in the next sub-pixel adjacent to the sub-pixel where it is located in the second direction DATA2), so that the channel region of the driving transistor can maximize the distance between the channel region of the driving transistor and DATA2 while ensuring a proper distance from DATA1, so as to better reduce the distance between the channel region of the driving transistor and DATA2.
- the crosstalk caused by the DATA2 to the drive transistor is also accounted for.
- the second plate Cst2 of the storage capacitor Cst and the power signal line pattern VDD can both shield the first conductive portion 108, the signal transmitted on DATA1 is reduced, and crosstalk is generated to the first conductive portion 108, In turn, the crosstalk phenomenon generated to the first electrode and the channel region of the driving transistor is reduced.
- the length of the first portion of the first pole along the second direction is greater than the length of the first portion of the second pole extending along the second direction, so that the channel region of the drive transistor ( 103pg in Figure 18) is far away from the data line pattern (such as DATA1) included in the sub-pixel where it is located, and close to the data line pattern (such as DATA2) included in the next sub-pixel adjacent to the sub-pixel where it is located in the second direction , Can make the channel region of the driving transistor meet the appropriate distance from DATA2, maximally increase the distance between the channel region of the driving transistor and DATA1, thereby better reducing the distance between the channel region of the driving transistor and DATA1.
- the crosstalk caused by DATA1 to the driving transistor is far away from the data line pattern (such as DATA1) included in the sub-pixel where it is located, and close to the data line pattern (such as DATA2) included in the next sub-pixel adjacent to the sub-pixel where it is located in the second direction .
- the display substrate includes a first shielding member
- the first shielding member can completely block DATA2 from the second conductive portion 109
- the signal transmitted on DATA2 can be reduced, and crosstalk to the second conductive portion 109 can be generated. , Thereby reducing the crosstalk phenomenon generated to the second electrode and the channel region of the driving transistor.
- the sub-pixel further includes an initialization signal line pattern (such as VINT1), and the initialization signal line pattern includes a portion extending in a second direction.
- the first direction intersects, and the initialization signal line pattern is used to transmit an initialization signal with a fixed potential;
- the sub-pixel driving circuit further includes a second transistor T2 coupled to the gate of the driving transistor, and the second transistor T2 includes:
- the orthographic projection of the second grid pattern on the substrate and the orthographic projection of the second semiconductor pattern on the substrate at least partially overlap;
- the orthographic projection of the third conductor pattern on the substrate, the orthographic projection of the first grid pattern on the substrate, and the orthographic projection of the second grid pattern on the substrate do not overlap ;
- the orthographic projection of the third conductor pattern on the substrate at least partially overlaps the orthographic projection of the initialization signal line pattern on the substrate.
- the above-mentioned second transistor T2 has a double-gate structure, and the first semiconductor pattern and the second semiconductor pattern included in it are formed as the channel region of the second transistor T2 (corresponding to FIG. 18), the third conductor pattern 102px included in it is doped, and its conductivity is better than that of the first semiconductor pattern and the second semiconductor pattern.
- the second transistor T2 includes The first gate pattern and the second gate pattern cover the first semiconductor pattern and the second semiconductor pattern in a one-to-one correspondence, and can be used together as the gate 202g of the second transistor T2.
- the third conductor pattern 102px has good conductivity and is not covered by the gate pattern, it is easy to couple with other conductive patterns in the vicinity and cause crosstalk.
- the orthographic projection of the third conductor pattern on the substrate 50 is at least partially overlapped with the orthographic projection of the initialization signal line pattern on the substrate 50, so that the The initialization signal line pattern can cover the third conductor pattern 102px. Since the initialization signal line pattern transmits an initialization signal with a fixed potential, the third conductor pattern 102px and other nearby conductive patterns are better reduced. The coupling effect between the graphics makes the working performance of the display substrate more stable.
- the sub-pixel driving circuit further includes a first extension portion extending from the first semiconductor pattern, and the conductivity of the first extension portion is better than that of the first extension portion.
- the first semiconductor pattern; the first extension portion includes a first portion 61, a second portion 62 and a third portion 63, the first portion 61 and the third portion 63 extend along the first direction, the The second portion 62 extends along the second direction, one end of the second portion 62 is coupled to the first portion 61, and the other end of the second portion 62 is coupled to the third portion 63; An end of the third portion 63 away from the second portion 62 is coupled to the first transistor T1.
- the first extension portion and the first semiconductor pattern can be fabricated in a single patterning process, and after the first semiconductor pattern is formed, the first extension portion is doped so that the first extension The conductivity of the part is better than that of the first semiconductor pattern.
- the first extension portion is set to the above structure, so that when the second transistor T2 is coupled to the gate of the first transistor T1 and the driving transistor through the first extension portion, It is more conducive to reducing the impact of the signal change transmitted on the target data line pattern on the performance of the first transistor T1 and the performance of the second transistor T2, thereby reducing the gate of the driving transistor (ie 203g) and the target data line pattern
- the influence of the coupling between them reduces the problem of vertical crosstalk, so that a better display effect can be obtained when the display substrate is used for display.
- the first transistor includes:
- the third grid pattern and the fourth grid pattern are coupled to each other, and the orthographic projection of the third grid pattern on the substrate partially overlaps the orthographic projection of the fourth semiconductor pattern on the substrate, so The orthographic projection of the fourth grid pattern on the substrate partially overlaps the orthographic projection of the fifth semiconductor pattern on the substrate;
- the orthographic projection of the sixth conductor pattern on the substrate, the orthographic projection of the third grid pattern on the substrate, and the orthographic projection of the fourth grid pattern on the substrate do not overlap .
- the first transistor has a double gate structure, and the fourth semiconductor pattern and the fifth semiconductor pattern included in it are formed as the channel region of the first transistor (corresponding to FIG. 18 101pg), the sixth conductor pattern 101px included in it is doped, and its conductivity is better than that of the fourth semiconductor pattern and the fifth semiconductor pattern.
- the third gate of the first transistor The electrode pattern and the fourth gate pattern cover the fourth semiconductor pattern and the fifth semiconductor pattern in a one-to-one correspondence, and can be used together as the gate 201g of the first transistor T1.
- the sub-pixel further includes an initialization signal line pattern (such as VINT1), and the initialization signal line pattern includes a portion extending in a second direction.
- the first direction intersects, and the initialization signal line pattern is used to transmit an initialization signal with a fixed potential;
- the sub-pixel driving circuit further includes: a first shielding component 404 coupled to the initialization signal line pattern, and the orthographic projection of the first shielding component 404 on the substrate 50 is identical to the sixth conductor pattern 101px The orthographic projections on the substrate 50 at least partially overlap.
- the orthographic projection of the first shielding component 404 on the substrate 50 is at least partially overlapped with the orthographic projection of the sixth conductor pattern 101px on the substrate 50, so that The first shielding component 404 can cover the sixth conductor pattern 101px, and because the first shielding component 404 has a fixed potential, the sixth conductor pattern 101px and other nearby patterns are better reduced.
- the coupling effect between the conductive patterns makes the working performance of the display substrate more stable.
- the sub-pixel further includes an initialization signal line pattern (such as VINT1), and the initialization signal line pattern includes a portion extending in a second direction.
- the first direction intersects, and the initialization signal line pattern is used to transmit an initialization signal with a fixed potential;
- the sub-pixel driving circuit further includes: a first shielding part 404 coupled to the initialization signal line pattern, and a second shielding part 301 coupled to the first shielding part 404, the second shielding part 301
- the orthographic projection on the substrate at least partially overlaps the orthographic projection of the sixth conductor pattern on the substrate.
- the above-mentioned orthographic projection of the second shielding component 301 on the substrate 50 is at least partially overlapped with the orthographic projection of the sixth conductor pattern 101px on the substrate 50, so that the second shielding component 301 can cover the sixth conductor pattern 101px, and since the second shielding part 301 is coupled to the first shielding part 404, the second shielding part 301 has a fixed potential, thereby better reducing The coupling effect between the sixth conductor pattern 101px and other nearby conductive patterns is reduced, so that the working performance of the display substrate is more stable.
- the first shielding member 404 and the second shielding member 301 both have a fixed potential, it is better to prevent or reduce the first transistor T1 and the target data line pattern ( For example, parasitic capacitance is formed between DATA2), which effectively prevents or reduces vertical crosstalk defects.
- the plurality of sub-pixels include multiple rows of sub-pixels, and each row of sub-pixels includes a plurality of the sub-pixels arranged along the second direction, and are located in the same row.
- the initialization signal line patterns in the sub-pixels are sequentially coupled to form the initialization signal line corresponding to the row of sub-pixels; the first shielding part 404 extends along the first direction, and the first shielding part 404 is adjacent to it The two initialization signal lines are coupled.
- the shape of the power signal line pattern can be laid out according to actual needs. For example, along the second direction, the width of the power signal line pattern near the channel region of the driving transistor, It is smaller than the width of the vicinity away from the channel region of the driving transistor, so that the influence of the power signal line pattern on the gate of the driving transistor can be reduced in the vicinity of the channel region of the driving transistor.
- a compensation pattern 408 may be provided in the display substrate, and the compensation pattern 408 may be connected in parallel with the power signal line pattern to improve the transmission performance of the power signal line pattern. It is worth noting that the compensation pattern 408 can be formed in the same layer and the same material as the third conductive connection portion, so that the compensation pattern 408 and the third conductive connection portion can be formed in the same patterning process.
- the orthographic projection of the power signal line pattern VDD on the substrate completely covers the orthographic projection of the first conductive portion 108 on the substrate.
- the orthographic projection of the power signal line pattern VDD on the substrate covers the first semiconductor pattern, the second semiconductor pattern, and the third conductor pattern of the second transistor T2
- the orthographic projection on the substrate also covers at least part of the orthographic projection of the first electrode of the second transistor T2 on the substrate, and the second electrode of the second transistor T2 is on the substrate At least part of the orthographic projection.
- the first shielding member 404 is an extension structure extending from the initialization signal line pattern.
- the first shielding part 404 is set as an extension structure extended from the initialization signal line pattern, so that the first shielding part 404 and the initialization signal line pattern can be formed in the same patterning process, thereby Better simplification of the manufacturing process flow of the display substrate.
- the first shielding component 404 and the initialization signal line pattern are arranged in different layers, and the orthographic projection of the first shielding component 404 on the substrate 50 is different from the The orthographic projection of the initialization signal line pattern on the substrate 50 has a first overlap area, and the first shielding member is coupled to the initialization signal line pattern through a first via provided in the first overlap area;
- the second shielding component 301 and the first shielding component 404 are arranged in different layers, and the orthographic projection of the second shielding component 301 on the substrate 50 is the same as that of the first shielding component 404 on the substrate 50 There is a second overlapping area in the orthographic projection, and the second shielding member 301 and the first shielding member 404 are coupled through a second via provided in the second overlapping area.
- the first shielding component 404 and the initialization signal line pattern can be arranged in the same layer or in different layers.
- the first shielding component 404 and the initialization signal line pattern are arranged in different layers, the The orthographic projection of the first shielding component 404 on the substrate 50 and the orthographic projection of the initialization signal line pattern on the substrate 50 both have a first overlap area, so that by setting the first overlap area in the first overlap area Via holes can realize the coupling between the first shielding component 404 and the initialization signal line.
- the second shielding component 301 and the first shielding component 404 can be arranged in the same layer or in different layers.
- the second shielding component 301 and the first shielding component 404 are arranged in different layers, it can be arranged
- the orthographic projection of the second shielding member 301 on the substrate 50 and the orthographic projection of the first shielding member 404 on the substrate 50 have a second overlapping area, so that a second overlapping area is provided in the second overlapping area.
- the first shielding component 404 and the data line pattern are made of the same material.
- the display substrate includes a first interlayer insulating layer, and the first shielding member 404 and the data line pattern are both located on a surface of the first interlayer insulating layer facing away from the substrate.
- the first shielding member 404 is arranged in the above-mentioned manner, so that the first shielding member 404 and the data line pattern can be simultaneously formed on the back of the first interlayer insulating layer through a patterning process.
- the surface of the substrate avoids adding an additional patterning process for manufacturing the first shielding component 404, thereby simplifying the manufacturing process of the display substrate and saving the manufacturing cost.
- the second shielding component 301 and the initialization signal line pattern are made of the same material.
- the display substrate further includes a second interlayer insulating layer, and the second shielding member 301 and the initialization signal line pattern are both located on the surface of the second interlayer insulating layer facing away from the substrate. .
- the second shielding component 301 and the initialization signal line pattern are set on the same material as described above, and the second shielding component 301 and the initialization signal line pattern (VINT1 in FIG. 3) are both located at the same material.
- the second interlayer insulating layer faces away from the surface of the substrate, so that the second shielding member 301 and the initialization signal line pattern can be formed at the same time in the same patterning process, avoiding the addition of additional dedicated for manufacturing
- the manufacturing process of the second shielding component 301 simplifies the manufacturing process of the display substrate and saves the production cost.
- the first plate Cst1 of the storage capacitor Cst is multiplexed as the gate of the driving transistor, and the second plate Cst2 of the storage capacitor Cst is the same as the second shielding member 301.
- the material is set, and the second electrode plate Cst2 of the storage capacitor Cst is located on the surface of the second interlayer insulating layer facing away from the substrate 50.
- the storage capacitor Cst included in the sub-pixel driving circuit has a first electrode plate Cst1 and a second electrode plate Cst2, the first electrode plate Cst1 and the second electrode plate Cst2 are arranged oppositely, and the first electrode plate Cst2 is opposite to each other.
- a plate Cst1 is coupled to the gate of the driving transistor, and the second plate Cst2 is coupled to the power signal line pattern VDD.
- the first plate Cst1 can be directly multiplexed as the gate of the driving transistor, which not only ensures that the storage capacitor Cst is coupled to the gate of the driving transistor, but also reduces the number of components.
- the space occupied by the pixel drive circuit is more conducive to improving the resolution of the display substrate.
- the second electrode plate Cst2 in the storage capacitor Cst is arranged on the surface of the second interlayer insulating layer facing away from the substrate, so that the second electrode plate Cst2 in the storage capacitor Cst can be connected to the first electrode plate Cst2.
- the two shielding components 301 and the initialization signal line pattern are simultaneously formed in the same patterning process, which greatly simplifies the manufacturing process of the display substrate and saves the production cost.
- the sub-pixel further includes: a reset signal line pattern (such as RST1) extending in a second direction intersecting the first direction, and the sub-pixel driving circuit further includes:
- the second transistor T2 the first electrode (such as the source S2) of the second transistor T2 is coupled to the initialization signal line pattern (such as VINT1) through the first conductive connection portion 405, and the second transistor T2
- the second electrode (such as the drain D2) of the second transistor is coupled to the gate of the driving transistor, and the gate 202g of the second transistor T2 is coupled to the reset signal line pattern (such as RST1).
- the first conductive connection portion 405 can be made of a metal material, and can be formed in the same patterning process as the data line pattern.
- the above-mentioned orthographic projection of the first conductive connecting portion 405 on the substrate 50 covers at least part of the orthographic projection of the sixth conductor pattern 101px on the substrate 50, so that the first conductive connecting portion 405 can be aligned
- the sixth conductor pattern 101px is covered, and because the first conductive connection portion 405 is coupled to the initialization signal line pattern, the first conductive connection portion 405 has a fixed potential, thereby better reducing
- the coupling effect between the sixth conductive pattern 101px and other conductive patterns nearby makes the working performance of the display substrate more stable.
- the sub-pixel further includes: a gate line pattern GATE, a light emission control signal line pattern EM, a reset signal line pattern (such as RST1), and an initialization signal line pattern (such as VINT1);
- the gate line pattern GATE, the light emission control signal line pattern EM, the reset signal line pattern, and the initialization signal line pattern all extend in a second direction, and the second direction intersects the first direction;
- the two switching transistors include a fourth transistor T4 and a fifth transistor T5;
- the sub-pixel driving circuit further includes: a first transistor T1, a second transistor T2, a sixth transistor T6, and a seventh transistor T7;
- the gate of the driving transistor (such as the gate 203g of the third transistor T3) is coupled to the second electrode of the first transistor T1, and the first electrode of the driving transistor is connected to the second electrode of the fifth transistor T5. Pole coupled, the second pole of the driving transistor is coupled to the first pole of the first transistor T1;
- the gate 201g of the first transistor T1 is coupled to the gate line pattern GATE;
- the gate 202g of the second transistor T2 is coupled to the reset signal line pattern, the first electrode of the second transistor T2 is coupled to the initialization signal line pattern, and the second electrode of the second transistor T2 is coupled to the reset signal line pattern. Coupled to the gate of the driving transistor;
- the gate 204g of the fourth transistor T4 is coupled to the gate line pattern GATE, the first electrode of the fourth transistor T4 is coupled to the data line pattern (DATA1 in Figure ()), and the The second electrode of the fourth transistor T4 is coupled to the first electrode of the driving transistor;
- the gate 205g of the fifth transistor T5 is coupled to the light emission control signal line pattern EM, and the first electrode of the fifth transistor T5 is coupled to the power signal line pattern VDD;
- the gate 206g of the sixth transistor T6 is coupled to the light emission control signal line pattern EM, the first electrode of the sixth transistor T6 is coupled to the second electrode of the driving transistor, and the sixth transistor T6 The second pole of is coupled to the light-emitting element in the sub-pixel;
- the gate 207g of the seventh transistor T7 is coupled to the reset signal line pattern (such as RST2) included in the next sub-pixel adjacent in the first direction, and the first electrode of the seventh transistor T7 is connected to the bottom
- the initialization signal line pattern (such as VINT2) included in one sub-pixel is coupled, and the second electrode of the seventh transistor T7 is coupled to the light-emitting element in the sub-pixel.
- a plurality of sub-pixels included may be distributed in an array, and the plurality of sub-pixels may be divided into multiple rows of sub-pixels and multiple columns of sub-pixels, and each row of sub-pixels includes a plurality of sub-pixels arranged along the second direction.
- Each column of sub-pixels includes a plurality of sub-pixels arranged along a first direction, and the first direction intersects the second direction.
- next sub-pixel adjacent in the first direction is the next adjacent sub-pixel located in the same column as the seventh transistor T7.
- Setting the sub-pixel and the sub-pixel driving circuit included in the above-mentioned structure can effectively reduce the layout space occupied by the sub-pixel driving circuit while ensuring the working performance of the sub-pixel driving circuit, which is beneficial to improve the display The resolution of the substrate.
- the embodiments of the present disclosure also provide a display device, including the display substrate provided in the above-mentioned embodiments.
- the second plate Cst2 of the storage capacitor Cst is coupled to the power signal line pattern VDD, the second plate Cst2 of the storage capacitor Cst is connected to the power signal line.
- the power signal transmitted on the pattern VDD has the same fixed potential; at the same time, it is set that the second poles of the two switching transistors are coupled to the first pole of the driving transistor, and at least one of the two switching transistors is
- the orthographic projection of the second pole on the substrate 50 at least partially overlaps with the orthographic projection of the power signal line pattern VDD on the substrate 50, and overlaps with the second pole plate Cst2 of the storage capacitor Cst in the
- the orthographic projections on the substrate 50 at least partially overlap, so that the second plate Cst2 of the storage capacitor Cst and the power signal line pattern VDD can both shield the second electrode of at least one of the two switching transistors, Therefore, the signal on other conductive patterns (such as signal line patterns) located around at least one of the two switching transistors is
- the display device provided by the embodiment of the present disclosure includes the above-mentioned display substrate, it also has the above-mentioned beneficial effects, which will not be repeated here.
- the embodiment of the present disclosure also provides a manufacturing method of a display substrate, the manufacturing method includes: manufacturing a plurality of sub-pixels distributed in an array on a substrate; the sub-pixels include: a data line pattern extending in a first direction; a power signal A line pattern, the power signal line pattern includes a portion extending along the first direction; a sub-pixel drive circuit, the sub-pixel drive circuit includes: two switching transistors, a drive transistor and a storage capacitor; the second of the storage capacitor One plate is coupled to the gate of the driving transistor, and the second plate of the storage capacitor is coupled to the power signal line pattern; the second electrodes of the two switching transistors are both connected to the gate of the driving transistor.
- the first pole is coupled, the orthographic projection of the second pole of at least one of the two switching transistors on the substrate at least partially overlaps the orthographic projection of the power signal line pattern on the substrate, And at least partially overlap with the orthographic projection of the second plate of the storage capacitor on the substrate.
- the second plate Cst2 of the storage capacitor Cst is coupled to the power signal line pattern VDD, so that the second plate Cst2 of the storage capacitor Cst has the same
- the power signal transmitted on the power signal line pattern VDD has the same fixed potential; at the same time, it is set that the second poles of the two switching transistors are both coupled to the first pole of the driving transistor, and the two switching transistors are
- the orthographic projection of the second electrode of at least one switching transistor on the substrate 50 at least partially overlaps with the orthographic projection of the power signal line pattern VDD on the substrate 50 and overlaps with the second electrode of the storage capacitor Cst.
- the orthographic projection of the plate Cst2 on the substrate 50 at least partially overlaps, so that the second plate Cst2 of the storage capacitor Cst and the power signal line pattern VDD can both be used for the first of at least one of the two switching transistors.
- the two poles are shielded, thereby reducing the signal on other conductive patterns (such as signal line patterns) located around at least one of the two switching transistors.
- the crosstalk phenomenon generated by the second pole of the drive transistor further reduces the crosstalk phenomenon generated on the first pole of the driving transistor.
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Abstract
Description
Claims (43)
- 一种显示基板,包括:基底和在所述基底上阵列分布的多个子像素;所述子像素包括:沿第一方向延伸的数据线图形;第一屏蔽部件,所述第一屏蔽部件的至少部分沿所述第一方向延伸;驱动晶体管,与所述驱动晶体管的栅极耦接的第一晶体管,以及与所述第一屏蔽部件耦接的第二屏蔽部件;所述第一晶体管为双栅结构,所述第一晶体管包括第四半导体图形、第五半导体图形和分别与所述第四半导体图形和所述第五半导体图形耦接的第六导体图形,所述驱动晶体管的第二极与所述第四半导体图形或所述第五半导体图形耦接;所述第二屏蔽部件在所述基底上的正投影,与所述第六导体图形在所述基底上的正投影至少部分重叠;所述第一屏蔽部件的至少部分位于所述驱动晶体管的第二极,与相邻子像素中的数据线图形之间。
- 根据权利要求1所述的显示基板,其中,所述第二屏蔽部件较所述第一屏蔽部件更靠近所述基底。
- 根据权利要求2所述的显示基板,其中,所述第一屏蔽部件在所述基底上的正投影与所述驱动晶体管的第二极在所述基底上的正投影之间的交叠面积为E1,所述驱动晶体管的第二极在所述基底上的正投影未与所述第一屏蔽部件在所述基底上的正投影交叠的部分的面积为E2,E1<E2。
- 根据权利要求1所述的显示基板,其中,沿第二方向上,所述驱动晶体管的第二极在所述基底上的正投影与所述第一屏蔽部件在所述基底上的正投影之间的最小直线距离为L1;所述驱动晶体管的第二极在所述基底上的正投影与所述相邻子像素中的数据线图形在所述基底上的正投影之间的最小直线距离为L2;L1≤L2。
- 根据权利要求4所述的显示基板,其中,所述驱动晶体管沟道长度为L3,L1≤L2≤L3。
- 根据权利要求1所述的显示基板,其中,所述驱动晶体管的第二极与所述相邻子像素中的数据线图形之间的最小直线距离为L4,所述驱动晶体管的第二极与所述第一屏蔽部件之间的最小直线距离为L5,L5<L4。
- 根据权利要求1所述的显示基板,其中,所述子像素还包括连接线,所述驱动晶体管的栅极通过所述连接线与所述第一晶体管的第二极耦接;所述第二屏蔽部件在所述基底上的正投影,位于所述连接线与所述第一晶体管的第二极耦接的一端在所述基底上的正投影,与相邻子像素中的数据线图形在所述基底上的正投影之间。
- 根据权利要求7所述的显示基板,其中,沿所述第一方向,所述第一屏蔽部件的长度大于所述连接线的长度。
- 根据权利要求3所述的显示基板,其中,所述驱动晶体管的第二极未与所述第一屏蔽部件交叠的部分在所述第一方向上延伸的长度为L6,所述第一屏蔽部件在所述第一方向上延伸的长度为L7;其中L6≤L7。
- 根据权利要求1所述的显示基板,其中,所述第一屏蔽部件在所述基底上的正投影,与所述驱动晶体管的第二极在所述基底上的正投影之间具有间隙。
- 根据权利要求1所述的显示基板,其中,所述子像素还包括第四晶体管,所述第四晶体管的第一极与数据线图形耦接,所述第四晶体管的第二极与所述驱动晶体管的第一极耦接;所述第二屏蔽部件在所述基底上的正投影,与相邻子像素中的第四晶体管在所述基底上的正投影不交叠。
- 根据权利要求1所述的显示基板,其中,所述第一屏蔽部件以及所述第二屏蔽部件用于接收第一固定电位信号。
- 根据权利要求12所述的显示基板,其中,所述子像素还包括存储电容,所述存储电容包括第一极板和第二极板;所述第一极板与所述驱动晶体管的栅极耦接,所述第二极板用于接收第二固定电位信号;所述第二极板在所述基底上的正投影与所述第一屏蔽部件在所述基底上的正投影之间具有间隙;所述驱动晶体管的第二极在所述基底上的正投影包括位于所述间隙内的 部分。
- 根据权利要求13所述的显示基板,其中,所述第一固定电位信号与所述第二固定电位信号相同。
- 根据权利要求2所述的显示基板,其中,所述驱动晶体管的第二极较所述第一屏蔽部件以及所述第二屏蔽部件更靠近所述基底。
- 根据权利要求1所述的显示基板,其中,所述第一晶体管的有源层与所述驱动晶体管的有源层同层设置,且为一体结构。
- 根据权利要求1所述的显示基板,其中,所述第一屏蔽部件距所述驱动晶体管的第二极的最小直线距离大于所述第二屏蔽部件距所述第六导体图形的最小直线距离。
- 根据权利要求1所述的显示基板,其中,所述子像素还包括:复位信号线图形和初始化信号线图形;所述复位信号线图形和所述初始化信号线图形均沿第二方向延伸,所述第二方向与所述第一方向相交;第二晶体管,所述第二晶体管的栅极与所述复位信号线图形耦接,所述第二晶体管的第一极与所述初始化信号线图形耦接,所述第二晶体管的第二极与所述驱动晶体管的栅极耦接。
- 根据权利要求18所述的显示基板,其中,所述第二屏蔽部件与所述第一屏蔽部件接触的接触部分在所述基底上的正投影,与所述第二晶体管的有源层在所述基底上的正投影不交叠;所述接触部分距所述第六导体图形的距离小于距所述驱动晶体管的第二极的距离;所述接触部分在基底上正投影距所述第六导体图形在所述基底上正投影的距离小于所述接触部分在基底上正投影与所述数据线图形在基底上的正投影之间的距离。
- 根据权利要求18所述的显示基板,其中,所述子像素还包括:发光控制信号线图形和电源信号线图形;所述发光控制信号线图形沿所述第二方向延伸,所述电源信号线图形包括沿所述第一方向延伸的部分;第五晶体管,所述第五晶体管的栅极与所述发光控制信号线图形耦接,所述第五晶体管的第一极与所述电源信号线图形耦接,所述第五晶体管的第 二极与所述驱动晶体管的第一极耦接。
- 根据权利要求20所述的显示基板,其中,所述子像素还包括:发光元件和第六晶体管;所述第六晶体管的栅极与所述发光控制信号线图形耦接,所述第六晶体管的第一极与所述驱动晶体管的第二极耦接,所述第六晶体管的第二极与所述发光元件耦接。
- 一种显示基板,包括:基底和在所述基底上阵列分布的多个子像素;所述子像素包括:沿第一方向延伸的数据线图形;第一屏蔽部件,所述第一屏蔽部件的至少部分沿所述第一方向延伸;驱动晶体管,与所述驱动晶体管的栅极耦接的第一晶体管,以及与所述第一屏蔽部件耦接的第二屏蔽部件;所述第一晶体管为双栅结构,所述第一晶体管包括第四半导体图形、第五半导体图形和分别与所述第四半导体图形和所述第五半导体图形耦接的第六导体图形,所述驱动晶体管的第二极与所述第四半导体图形或所述第五半导体图形耦接;所述第二屏蔽部件与所述第一屏蔽部件接触的部分距所述第六导体图形的直线距离,小于该部分距所述驱动晶体管的第二极的直线距离;所述第二屏蔽部件与所述第一屏蔽部件接触的接触部分在基底上正投影距所述第六导体图形在所述基底上正投影的距离,小于所述接触部分在基底上正投影与所述数据线图形在基底上的正投影之间的距离。
- 根据权利要求22所述的显示基板,其中,所述第二屏蔽部件较所述第一屏蔽部件更靠近所述基底。
- 根据权利要求23所述的显示基板,其中,所述第一屏蔽部件在所述基底上的正投影与所述驱动晶体管的第二极在所述基底上的正投影之间的交叠面积为E1,所述驱动晶体管的第二极在所述基底上的正投影未与所述第一屏蔽部件在所述基底上的正投影交叠的部分的面积为E2,E1<E2。
- 根据权利要求22所述的显示基板,其中,沿第二方向上,所述驱动晶体管的第二极在所述基底上的正投影与所述第一屏蔽部件在所述基底上的正投影之间的最小直线距离为L1;所述驱动晶体管的第二极在所述基底上的 正投影与所述相邻子像素中的数据线图形在所述基底上的正投影之间的最小直线距离为L2;L1≤L2。
- 根据权利要求25所述的显示基板,其中,所述驱动晶体管的沟道在第二方向的长度为L3,L1≤L2≤L3。
- 根据权利要求22所述的显示基板,其中,所述驱动晶体管的第二极与所述相邻子像素中的数据线图形之间的最小直线距离为L4,大于所述驱动晶体管的第二极与所述第一屏蔽部件之间的最小直线距离为L5,L5<L4。
- 根据权利要求22所述的显示基板,其中,所述子像素还包括连接线,所述驱动晶体管的栅极通过所述连接线与所述第一晶体管的第二极耦接;所述第二屏蔽部件在所述基底上的正投影,位于所述连接线与所述第一晶体管的第二极耦接的一端在所述基底上的正投影,与相邻子像素中的数据线图形在所述基底上的正投影之间。
- 根据权利要求28所述的显示基板,其中,沿所述第一方向,所述第一屏蔽部件的长度大于所述连接线的长度。
- 根据权利要求24所述的显示基板,其中,所述驱动晶体管的第二极未与所述第一屏蔽部件交叠的部分在所述第一方向上延伸的长度为L6,所述第一屏蔽部件在所述第一方向上延伸的长度为L7;其中L6≤L7。
- 根据权利要求22所述的显示基板,其中,所述第一屏蔽部件在所述基底上的正投影,与所述驱动晶体管的第二极在所述基底上的正投影之间具有间隙。
- 根据权利要求22所述的显示基板,其中,所述子像素还包括第四晶体管,所述第四晶体管的第一极与数据线图形耦接,所述第四晶体管的第二极与所述驱动晶体管的第一极耦接;所述第二屏蔽部件在所述基底上的正投影,与相邻子像素中的第四晶体管在所述基底上的正投影不交叠。
- 根据权利要求22所述的显示基板,其中,所述第一屏蔽部件以及所述第二屏蔽部件用于接收第一固定电位信号。
- 根据权利要求33所述的显示基板,其中,所述子像素还包括存储电容,所述存储电容包括第一极板和第二极板;所述第一极板与所述驱动晶体 管的栅极耦接,所述第二极板用于接收第二固定电位信号;所述第二极板在所述基底上的正投影与所述第一屏蔽部件在所述基底上的正投影之间具有间隙;所述驱动晶体管的第二极在所述基底上的正投影包括位于所述间隙内的部分。
- 根据权利要求34所述的显示基板,其中,所述第一固定电位信号与所述第二固定电位信号相同。
- 根据权利要求23所述的显示基板,其中,所述驱动晶体管的第二极较所述第一屏蔽部件以及所述第二屏蔽部件更靠近所述基底。
- 根据权利要求22所述的显示基板,其中,所述第一晶体管的有源层与所述驱动晶体管的有源层同层设置,且为一体结构。
- 根据权利要求22所述的显示基板,其中,所述第一屏蔽部件距所述驱动晶体管的第二极的最小直线距离大于所述第二屏蔽部件距所述第六导体图形的最小直线距离。
- 根据权利要求22所述的显示基板,其中,所述子像素还包括:复位信号线图形和初始化信号线图形;所述复位信号线图形和所述初始化信号线图形均沿第二方向延伸,所述第二方向与所述第一方向相交;第二晶体管,所述第二晶体管的栅极与所述复位信号线图形耦接,所述第二晶体管的第一极与所述初始化信号线图形耦接,所述第二晶体管的第二极与所述驱动晶体管的栅极耦接。
- 根据权利要求39所述的显示基板,其中,所述第二屏蔽部件与所述第一屏蔽部件接触的部分在所述基底上的正投影,与所述第二晶体管的有源层在所述基底上的正投影不交叠;所述第一屏蔽部件中沿所述第一方向延伸的部分与所述第二屏蔽部件之间的最小直线距离,小于相邻子像素中的数据线图形与所述第二屏蔽部件之间的最小直线距离。
- 根据权利要求39所述的显示基板,其中,所述子像素还包括:发光控制信号线图形和电源信号线图形;所述发光控制信号线图形沿所述第二方向延伸,所述电源信号线图形包括沿所述第一方向延伸的部分;第五晶体管,所述第五晶体管的栅极与所述发光控制信号线图形耦接,所述第五晶体管的第一极与所述电源信号线图形耦接,所述第五晶体管的第二极与所述驱动晶体管的第一极耦接。
- 根据权利要求41所述的显示基板,其中,所述子像素还包括:发光元件和第六晶体管;所述第六晶体管的栅极与所述发光控制信号线图形耦接,所述第六晶体管的第一极与所述驱动晶体管的第二极耦接,所述第六晶体管的第二极与所述发光元件耦接。
- 一种显示装置,包括如权利要求1~42中任一项所述的显示基板。
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US20210193780A1 (en) | 2021-06-24 |
US11968862B2 (en) | 2024-04-23 |
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AU2020390375A1 (en) | 2021-12-09 |
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AU2020390375B2 (en) | 2023-02-16 |
WO2021104481A9 (zh) | 2021-08-05 |
US20240237446A1 (en) | 2024-07-11 |
KR20220106037A (ko) | 2022-07-28 |
US11469291B2 (en) | 2022-10-11 |
CN113614922A (zh) | 2021-11-05 |
CN113196486A (zh) | 2021-07-30 |
EP3993038A1 (en) | 2022-05-04 |
BR112021023944A2 (pt) | 2022-01-18 |
JP2023508120A (ja) | 2023-03-01 |
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