WO2020155587A1 - 显示装置及其oled显示面板 - Google Patents

显示装置及其oled显示面板 Download PDF

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Publication number
WO2020155587A1
WO2020155587A1 PCT/CN2019/098144 CN2019098144W WO2020155587A1 WO 2020155587 A1 WO2020155587 A1 WO 2020155587A1 CN 2019098144 W CN2019098144 W CN 2019098144W WO 2020155587 A1 WO2020155587 A1 WO 2020155587A1
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Prior art keywords
oled
pixel
display area
row
display panel
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PCT/CN2019/098144
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English (en)
French (fr)
Inventor
向东
范文志
楼均辉
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昆山国显光电有限公司
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Publication of WO2020155587A1 publication Critical patent/WO2020155587A1/zh
Priority to US17/165,175 priority Critical patent/US11244609B2/en

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    • G09G3/22—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 using controlled light sources
    • G09G3/30—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 using controlled light sources using electroluminescent panels
    • G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
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    • H10K59/131—Interconnections, e.g. wiring lines or terminals
    • H—ELECTRICITY
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    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
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    • H10K59/873—Encapsulations
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
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Definitions

  • This application relates to the technical field of OLED display devices, and in particular to a display device and an OLED display panel thereof.
  • the top of the screen needs to be installed with components such as cameras, sensors, earpieces, etc.
  • a part of the area on the top of the screen is usually reserved for installing the above components.
  • the "bangs" area of the iPhone X affects the overall consistency of the screen.
  • the full-screen display is receiving more and more attention from the industry.
  • the present application provides a display device and an OLED display panel thereof to solve the deficiencies in related technologies.
  • an OLED display panel including: a display area, a display driving chip, and a first gate driving circuit group.
  • the display area includes a non-transparent display area and a transparent display area, and there is a boundary line between the non-transparent display area and the transparent display area;
  • the non-transparent display area includes first OLED pixels arranged in an array;
  • the driving mode of the first OLED pixels arranged in an array is active;
  • the transparent display area includes second OLED pixels arranged in an array, and when the second OLED pixels arranged in an array are driven, the The transparent display area performs a display function; when the second OLED pixels arranged in an array are not driven, the transparent display area performs a light transmission function;
  • the driving mode of the second OLED pixels arranged in an array is an active mode
  • the first pixel driving circuit corresponding to the first OLED pixel in each row is respectively connected to the first gate driving circuit group;
  • the first gate driving circuit group is connected to the first group of gate driving signal channels of the
  • a display device including: a device body having a device area; the above-mentioned display panel; the display panel covers the device body; wherein the device area is located at the device body. Below the transparent display area, and the device area includes a photosensitive device that emits or collects light through the transparent display area.
  • the beneficial effects of the embodiments of the present application may include: since the first pixel driving circuit corresponding to the first OLED pixel in each row of the non-transparent display area is respectively connected to the first gate driving circuit group, the first gate driving circuit group is connected to the display driving chip The first group of gate drive signal channels in the transparent display area, and the second pixel drive circuits of the second OLED pixels in each row in the transparent display area are respectively connected to the second group of gate drive signal channels of the display drive chip, and the display drive chip passes through the The first group of gate drive signal channels output a first group of clock signals, and the first group of gate drive circuits converts the first group of clock signals into the first pixel drive circuit corresponding to each row of the first OLED pixel A gate drive signal, the display drive chip also outputs the second gate drive signal of the second pixel drive circuit of each row of the second OLED pixel through the second set of gate drive signal channels, and, in the same frame In the screen, the second gate drive signal of the second OLED pixel in each row is substantially the same as
  • the first OLED pixel and the second OLED pixel in the opposite position can be displayed synchronously, and the luminous brightness is basically the same, thereby realizing the synchronous display of the non-transparent display area and the transparent display area, reducing or even avoiding the non-transparent display area and the transparent display.
  • the split-screen phenomenon of the areas on both sides of the boundary of the area can be displayed synchronously, and the luminous brightness is basically the same, thereby realizing the synchronous display of the non-transparent display area and the transparent display area, reducing or even avoiding the non-transparent display area and the transparent display.
  • Fig. 1 is a schematic structural diagram of an OLED display panel according to an embodiment of the present application.
  • Fig. 2A is a schematic block diagram of a gate driving circuit according to an embodiment of the present application.
  • FIG. 2B is a schematic block diagram of another gate driving circuit according to an embodiment of the present application.
  • Fig. 3 is a schematic diagram showing a first group of gate driving signals and a second group of gate driving signals according to an embodiment of the present application
  • FIG. 4 is a schematic diagram showing the positional relationship between a first OLED pixel and a second OLED pixel according to an embodiment of the present application
  • FIG. 5 is a schematic structural diagram of a first gate driving circuit group according to an embodiment of the present application.
  • Fig. 6 is a 3T1C pixel driving circuit according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram showing the routing of data signal lines of a second OLED pixel according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram showing the arrangement of a first OLED pixel and a second OLED pixel according to an embodiment of the present application
  • FIG. 9 is a schematic structural diagram of an OLED display panel according to related technologies.
  • FIG. 10 is a schematic structural diagram of an OLED display panel according to an embodiment of the present application.
  • FIG. 11 is a schematic cross-sectional view of a display driving chip according to an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of another OLED display panel according to an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of another OLED display panel according to an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of another OLED display panel according to an embodiment of the present application.
  • FIG. 15 is a schematic diagram of a planar structure of a display device according to an embodiment of the present application.
  • Fig. 16 is a schematic structural diagram of a display device according to an embodiment of the present application.
  • the transparent display area can achieve both light transmission and display functions.
  • the display of the transparent display area and the non-transparent display area are often out of synchronization, which leads to the problem of split screen.
  • an embodiment of the present application provides a display device and its OLED (Organic Light-Emitting Diode) display panel, which can solve the above technical problems, realize the synchronous display of the non-transparent display area and the transparent display area, and reduce or even avoid The split-screen phenomenon of the areas on both sides of the boundary line between the non-transparent display area and the transparent display area is solved.
  • OLED Organic Light-Emitting Diode
  • an embodiment of the present application provides an OLED display panel.
  • the OLED display panel 1 includes a display area 11, and the display area 11 includes a non-transparent display area 111 and a transparent display area 112.
  • the split-screen phenomenon avoided in this embodiment is the split-screen phenomenon that occurs in areas on both sides of the boundary line 12.
  • the non-transparent display area 111 includes first OLED pixels 13 arranged in an array, and the driving mode of the first OLED pixels 13 arranged in an array is an active type.
  • the transparent display area 112 includes second OLED pixels 14 arranged in an array, and when the second OLED pixels 14 arranged in an array are driven, the transparent display area 112 performs a display function.
  • the transparent display area 112 When the second OLED pixels 14 arranged in an array are not driven, the transparent display area 112 performs a light transmission function, and the driving mode of the second OLED pixels 14 arranged in an array is an active mode.
  • the frame area 16 is provided around the display area 11.
  • the display driving chip 15 is arranged in the lower part of the frame area 16.
  • the first pixel driving circuit 22 corresponding to the first OLED pixel 13 in each row is respectively connected to the first gate driving circuit group 21, and the first gate driving circuit group 21
  • the first group of gate driving signal channels (not shown) connected to the display driving chip 15.
  • the second pixel driving circuit 23 corresponding to the second OLED pixels 14 in each row is respectively connected to the second group of gate driving signal channels (not shown) of the display driving chip 15.
  • the display drive chip 15 is used to output a first set of clock signals through the first set of gate drive signal channels, and the first gate drive circuit set is used to convert the first set of clock signals into the The first gate driving signal of the first pixel driving circuit 22 corresponding to the first OLED pixel.
  • the display driving chip 15 is also used to output the second gate driving signal of the second pixel driving circuit 23 of each row of the second OLED pixel 14 through the second group of gate driving signal channels.
  • the second gate driving signal of the second OLED pixel 14 in each row corresponds to the pulse width of the first gate driving signal of the first OLED pixel 13 in a specified row.
  • T is basically the same.
  • intersections B and C of the pixel row where the first OLED pixel 13 of the specified row is located and the boundary line 12 are located at the pixel where the second OLED pixel 14 of the transparent display area 112 is located.
  • the display driving chip 15 includes a first group of gate driving signal channels and a second group of gate driving signal channels.
  • the first group of gate drive signal channels is used to output the first group of clock signals to the first group of gate drive circuits.
  • the first gate driving circuit group may include shift registers Y1, Y2, Y3, ..., YL connected in series in sequence.
  • the input end of the shift register Y1 at the head end is used to receive the first group of clock signals and perform a shift operation on the first group of clock signals to obtain output signal 1.
  • the output signal 1 may include the first row in the non-transparent display area.
  • the first gate drive signal of an OLED pixel is used to output the first group of clock signals to the first group of gate drive circuits.
  • the shift register Y1 also inputs the output signal 1 to the shift register Y2, and the shift register Y2 performs a shift operation on the output signal 1 to obtain the output signal 2.
  • the output signal 2 can be the first OLED pixel in the second row of the non-transparent display area The first gate drive signal.
  • the output signal L output from the output terminal of the shift register YL is the first gate driving signal of the first OLED pixel in the L-th row.
  • the first gate driving circuit group is connected to the first group of display driving chips.
  • the second pixel driving circuit of each row of the second OLED pixel in the transparent display area is respectively connected to the second group of gate driving signal channels of the display driving chip, and the display driving chip passes through the first group of gate driving signal channels.
  • the pole drive signal channel outputs a first set of clock signals
  • the first gate drive circuit group converts the first set of clock signals into the first gate drive of the first pixel drive circuit corresponding to each row of the first OLED pixel Signal
  • the display driving chip also outputs the second gate driving signal of the second pixel driving circuit of each row of the second OLED pixel through the second group of gate driving signal channels, and, in the same frame of picture, every The second gate drive signal of the second OLED pixel of a row is substantially the same as the pulse width of the first gate drive signal of the first OLED pixel of the specified row, wherein the first OLED pixel of the specified row is located
  • the intersection of the pixel row with the boundary line falls within the range of the intersection of the pixel row where the second OLED pixel of the transparent display area is located and the boundary line.
  • the first OLED pixel and the second OLED pixel in the opposite position can be displayed synchronously, and the luminous brightness is basically the same, thereby realizing the synchronous display of the non-transparent display area and the transparent display area, reducing or even avoiding the non-transparent display area and the transparent display area.
  • the split-screen phenomenon of the areas on both sides of the boundary of the area can be displayed synchronously, and the luminous brightness is basically the same, thereby realizing the synchronous display of the non-transparent display area and the transparent display area, reducing or even avoiding the non-transparent display area and the transparent display area.
  • the first gate drive of the first OLED pixels 13 in the specified row is The signal includes a first scan signal and a first light-emitting control signal
  • the second gate drive signal of the second OLED pixel 14 in the same row includes a second scan signal and a second light-emitting control signal; the first scan signal and the The second scan signal is substantially the same, and the first light-emitting control signal is substantially the same as the second light-emitting control signal.
  • the time to write data to the storage capacitors in the first pixel driving circuit and the second pixel driving circuit is basically the same, so that the second OLED pixel in the same row is
  • the luminous brightness of the first OLED pixels in the specified row of the OLED is basically the same, which is beneficial to reduce or even avoid the split screen phenomenon in the areas on both sides of the boundary line between the non-transparent display area and the transparent display area.
  • the first light-emitting control signal is basically the same as the second light-emitting control signal
  • the second OLED pixel in the same row and the first OLED pixel in the corresponding designated row can be synchronized to emit light to realize a non-transparent display area and a transparent display area. Synchronous display.
  • the first scan signal and the second scan signal are basically the same.
  • the aforementioned specified brightness value may be 3% of the light-emitting brightness of the first OLED pixel.
  • the first pixel driving circuit may be an nT1C pixel driving circuit, and the nT1C pixel driving circuit includes at least one first switching transistor for controlling the light emission of the first OLED pixel 13, and n is greater than 2. Positive integer.
  • the second pixel driving circuit is an mT1C pixel driving circuit, and the mT1C pixel driving circuit includes at least one second switching transistor for controlling the second OLED pixel to emit light, and m is a positive integer greater than 2.
  • the first pixel driving circuit is an nT1C pixel driving circuit
  • the nT1C pixel driving circuit includes at least one first switching transistor for controlling the light emission of the first OLED pixel
  • one of the at least one first switching transistor is The gate is input with the first scan signal
  • the gate of the other first switching transistor in the at least one first switching transistor is input with the first light emission control signal.
  • the second pixel drive circuit is an mT1C pixel drive circuit
  • the mT1C pixel drive circuit includes at least one second switch transistor for controlling the second OLED pixel to emit light, therefore, one second switch transistor in the at least one second switch transistor
  • the gate of the switching transistor is input with the second scan signal
  • the gate of the other second switching transistor among the at least one second switching transistor is input with the second light emission control signal.
  • the second pixel driving circuit is a 3T1C pixel driving circuit, and the 3T1C pixel driving circuit includes two second switching transistors T1, T3, a storage capacitor C, and a driving transistor T2.
  • the source of the second switching transistor T3 is connected to the data line, the gate is used to input the second scan signal GIP1, the drain is connected to a plate of the storage capacitor C and the gate of the driving transistor T2, and the source of the driving transistor T2 is connected to storage
  • the other plate of the capacitor C and the power supply VCC the drain of the driving transistor T2 is connected to the source of the second switching transistor T1
  • the drain of the second switching transistor T1 is connected to the anode of the OLED
  • the gate of the second switching transistor T1 is used for Input the second light emission control signal GIP2, and the cathode of the OLED is connected to the low level ELVSS.
  • the second pixel driving circuit is a 3T1C pixel driving circuit, not only can the second OLED pixel in the same row and the first OLED pixel in the corresponding designated row be synchronized to emit light, and the non-transparent display area and the transparent display area can be displayed simultaneously, and,
  • the structure is simple, the space is small, and the preparation is convenient.
  • the first pixel driving circuit is a 2T1C pixel driving circuit; the second pixel driving circuit is a 2T1C pixel driving circuit.
  • the first gate driving signal of the first OLED pixel may only include the first scan signal, and the second OLED The second gate driving signal of the pixel may only include the second scan signal; the first scan signal is substantially the same as the second scan signal. Since the first pixel driving circuit is a 2T1C pixel driving circuit, the circuit structure is simple, the space is small, and the preparation is convenient. In the same way, the second pixel driving circuit is a 2T1C pixel driving circuit, which has a simple circuit structure, a small footprint, and is convenient for preparation.
  • a variable resistor 24 may be connected in series between the second pixel driving circuit 23 corresponding to the second OLED pixel 14 in each row and the display driving chip 15.
  • the variable resistor can adjust the size of the charging current to the parasitic capacitance in the second pixel driving circuit, and then the pulse width of the second gate driving signal can be adjusted, which is beneficial to make the above-mentioned second gate driving signal and the above-mentioned first
  • the pulse width of a gate driving signal is basically the same, and the structure is simple, and the space is small.
  • the variable resistor is a transistor T4.
  • the source S of the transistor T4 is connected to the second pixel driving circuit, and the drain D and the gate G are respectively connected to the display driving chip 15.
  • the drain D of the transistor T4 is connected to the second pixel driving circuit 23, and the source S and the gate G are connected to the display driving chip 15 respectively. Since the transistor is compatible with the manufacturing process of the OLED display panel, it is easy to manufacture.
  • the signal line between the first gate driving circuit group 21 and the first pixel driving circuit 22 may be one.
  • a gate drive signal includes a first scan signal and a first light-emitting control signal
  • the signal line between the display driving chip 15 and the second pixel driving circuit 23 may be one, and when the second gate driving signal includes the second scan signal In connection with the second light-emitting control signal, there may be two signal lines between the display driving chip 15 and the second pixel driving circuit 23, one for transmitting the second scan signal, and the other for transmitting the second light-emitting control signal.
  • the second pixel driving circuit can be arranged in the frame area 16, specifically, can be arranged in the frame area 16 above the transparent display area 112, so that not only can the second pixel
  • the driving circuit affects the light transmittance of the transparent display area, and can facilitate wiring.
  • the second pixel driving circuit may be disposed in the transition area 17 between the transparent display area 112 and the non-transparent display area 111. In this way, not only can the second pixel driving circuit be prevented from affecting the light transmittance of the transparent display area, but also the wiring can be facilitated.
  • the transition area 17 may not be limited to the shape and position shown in FIG. 4, for example, the transition area 17 may surround the transparent display area 112 on three sides.
  • the second pixel driving circuit may be disposed in the non-transparent display area 111. In this way, not only can the second pixel drive circuit not affect the light transmittance of the transparent display area, but also the wiring can be facilitated.
  • the first pixel driving circuit of the first OLED pixel 13 and the second pixel driving circuit of the second OLED pixel 14 are connected to the display driving chip 15 of the same data signal line 18.
  • the data of all the data signal lines 18 corresponding to the second OLED pixels 14 in each column and the first OLED pixels 13 in each column corresponds to the same frame of picture in the display area.
  • the first pixel driving circuit of the first OLED pixel in the same column and the second pixel driving circuit of the second OLED pixel in the same column are connected to the same data signal line of the display driving chip, and the second OLED pixel in each column is connected to the first OLED pixel in each column.
  • the data of all the data signal lines corresponding to the pixels correspond to the same frame of picture in the display area, so that the same drive chip can be used to control the transparent display area and the non-transparent display area to display the same frame of picture.
  • the data signal line 18 corresponding to the second OLED pixel 14 in each column can be connected from the The display driving chip 15 sequentially extends to the second pixel driving circuit corresponding to the frame area 16 through the non-transparent display area 111, the transition area between the transparent display area 112 and the non-transparent display area.
  • the data signal lines 18 corresponding to the second OLED pixels 14 in each column can also extend from the display driving chip 15 through the non-transparent display area 111 to the second pixel driving circuit 23 corresponding to the frame area 16.
  • the second pixel drive circuit When the second pixel drive circuit is arranged in the frame area, since the data signal lines corresponding to the second OLED pixels in each column pass from the display drive chip through the non-transparent display area, the transparent display area and the non-transparent display area in sequence.
  • the transition area between the transparent display areas extends to the second pixel drive circuit corresponding to the frame area, or the data signal lines corresponding to the second OLED pixels of each column extend from the display drive chip through the non-transparent display area
  • the second pixel driving circuit corresponding to the frame area does not pass through the transparent display area, so as to avoid affecting the light transmittance of the transparent display area.
  • the second OLED pixels 14 arranged in an array may include one row and several columns of second OLED pixels 14.
  • the second gate drive signals of the second OLED pixels 14 in one row and several columns may correspond to the first OLED pixels 13 in the first row (ie, the first OLED pixel in the specified row described above is the first row)
  • the first gate drive signal is basically the same. Since the arrangement of the second OLED pixels in the transparent display area is one row and several columns, the structure is simple, easy to prepare, and easy to control.
  • the second OLED pixels in one row and several columns are sub-pixels of multiple colors, and the sub-pixels of different colors in a row form a pixel unit 6. Therefore, the transparent display area can also display pictures in multiple colors.
  • the second OLED pixels in all columns in the transparent display area are sub-pixels of the same color. Since all the second OLED pixels in the columns in the transparent display area are sub-pixels of the same color, the manufacturing process can be simplified.
  • the first OLED pixel may include: a block-shaped first electrode 31, an OLED light-emitting structure, and a second electrode; the row and several columns of the second OLED pixel include: a first electrode 32 extending in a column direction, The OLED light emitting structure 35 on the electrode 32 and the second electrode on the OLED light emitting structure. Since the first electrode 32 of the second OLED pixel extends in the column direction, the OLED light-emitting structure and the second electrode also extend in the column direction. Therefore, the structure of the second OLED pixel is simplified, which is easy to prepare, and can reduce the amount of the graphic film layer. At the junction, improve the diffraction problem.
  • the OLED light-emitting structure 35 of the second OLED pixel extends in the column direction on the first electrode 32, or there is an interval distribution on the first electrode 32 of the second OLED pixel ⁇ Multiple OLED light emitting structures 35.
  • FIG. 8 shows that the light emitting structures 35 are distributed on the first electrode 32 at intervals along the column direction.
  • the plurality of OLED light emitting structures are separated by a pixel defining layer, or there is no pixel defining layer between adjacent OLED light emitting structures of the plurality of OLED light emitting structures. Since there may be a plurality of OLED light-emitting structures distributed at intervals on the first electrode of the second OLED pixel, the plurality of OLED light-emitting structures may be separated by a pixel definition layer, and there may be no OLED light-emitting structures between adjacent OLED light-emitting structures among the plurality of OLED light-emitting structures. Pixel definition layer.
  • the projection of the first electrode of each column of the second OLED pixel on the plane where the OLED display panel is located includes one graphic unit or two or more graphic units; the graphic unit is circular, oval, or dumbbell-shaped , Gourd-shaped or rectangular. Since the first electrode of the second OLED pixel includes a round, oval, dumbbell, gourd or rectangular structure, interference fringes can be superimposed and canceled, which helps to reduce the diffraction in the transparent display area in the light-transmitting mode. Improve imaging quality.
  • the ratio of the length of the first electrode in the column direction to the width of the row direction of the second OLED pixel is greater than 20:1.
  • the second electrode of each second OLED pixel is connected to form a surface electrode, or the second electrode of each first OLED pixel is connected to the second electrode of each second OLED pixel to form a surface electrode. Since the second electrode of each second OLED pixel is connected to form a surface electrode, or the second electrode of each of the first OLED pixel and the second electrode of each second OLED pixel are connected to form a surface electrode, the preparation can be simplified. Craft.
  • the first electrode and the OLED light-emitting structure of each column of the second OLED pixel extend in the column direction in a section in the middle of the transparent display area, or extend downward from the top of the transparent display area to the middle. , Bottom or extending from the middle to the bottom.
  • the power cord of the display panel includes a power cord 81, a power cord 82 and a power cord 83.
  • the power line 81 is a low-level power line
  • the power line 82 and the power line 83 are high-level power lines.
  • the near ends of the two power lines 82 from the power input end are respectively Q point and W point
  • the far ends of the power line 82 from the power input end are R point.
  • the distance from the two points Q and W to the point R becomes larger, causing the voltage drop of the power signal to become more and more serious. Therefore, the embodiments of the present application also provide a technical solution for solving this technical problem, which is specifically as follows.
  • the OLED display panel 1 may further include a number of power lines 82, and the power lines 82 are used to feed the first OLED pixel 13 and the second OLED The pixel 14 provides a power supply voltage.
  • a first power signal channel 151 is opened under the display driving chip 15. At least one of the plurality of power lines 82 is electrically connected to the first OLED pixel 13 and the second OLED pixel 14 through the first power signal channel 151. Since the first power signal channel is opened under the display driver chip, and at least one power line 82 passes through the first power signal channel and is electrically connected to the first OLED pixel and the second OLED pixel, this is beneficial to increase The number of power lines 82 connected to the pixels in the display area can reduce the current on each power line 82 when the power supply voltage provides a constant current, thereby reducing the voltage drop on each power line 82, which can increase The uniformity of the display brightness of the display area.
  • the number of the at least one power line is one.
  • a power cord 82 For example, a power cord 82.
  • the number of at least one power line passing through the first power signal channel 151 is two.
  • the number of the first power signal channels 151 can also be 2.
  • Two power lines respectively pass through the corresponding first power signal channels 151.
  • the number of power lines passing through the first power signal channel may be 1 or 2, the diversity of implementation manners is realized.
  • redundant pins may be provided on the display driving chip 15.
  • the redundant pin is connected in parallel with the power line passing through the first power signal channel. Since there are redundant pins on the display driver chip, and the redundant pins are connected in parallel with the power line 82 passing through the first power signal channel, not only can the resistance of the power line be reduced, but also the redundant pins can be Support during welding.
  • the flexible printed circuit board 84 is arranged on the OLED display panel 1.
  • the display driving chip 15 is electrically connected to the flexible printed circuit board 84.
  • the flexible printed circuit board 84 is provided with a plurality of second power signal channels.
  • the plurality of second power signal channels correspond to the plurality of power lines 82 one to one. That is, each power line 82 can pass through a corresponding second power signal channel.
  • the power chip 85 is also electrically connected to the flexible printed circuit board 84.
  • the number of power lines 82 to the pixels in the display area can reduce the current on each power line 82 when the power supply voltage provides a constant current, thereby reducing the voltage drop on each power line 82 and improving the display The uniformity of the display brightness of the area.
  • the display panel 1 provided by the embodiment of the present application, as shown in FIG. 14, further includes an encapsulation layer 201.
  • the encapsulation layer 201 is encapsulated on a side of the OLED display panel 1 away from the substrate of the OLED display panel, and a photosensitive device may be disposed under the transparent display area.
  • At least part of the transparent display area 112 of the OLED display panel 1 is surrounded by the non-transparent display area 111.
  • the OLED display panel 1 includes a polarizer 205, and the polarizer 205 is disposed on the encapsulation layer 201.
  • the polarizer 205 covers the non-transparent display area 111 and does not cover the transparent display area 112. Since the polarizer 205 can eliminate ambient light entering the display panel and then being reflected out of the display panel, it can eliminate ambient light interference with the normal display of the display panel.
  • an embodiment of the present application further provides a display device 300, which includes: a device body C and the display panel 1 described in any of the foregoing embodiments.
  • the device body C has a device area 301, and the display panel 1 covers the device body C.
  • the device area 301 is located below the transparent display area, and the device area includes a photosensitive device D that emits or collects light through the transparent display area.
  • the photosensitive device D includes at least one of the following: a camera, a light sensor, and a light emitter.
  • the OLED display panel 1 may further include the display driving chip 15.
  • the OLED display panel 1 of the display device 300 further includes a chip on film 86, and the display driving chip 15 is disposed on the chip on film 86.
  • the display device may further include a flexible printed circuit board.
  • the flexible printed circuit board is located on the chip on film.
  • the chip on film is included in the OLED display panel.
  • the display driving chip 15 is arranged on a chip on film, and the display driving chip 15 is electrically connected to the flexible printed circuit board.
  • the display device when the OLED display panel 1 includes several power lines 82, the display device further includes a power chip 85.
  • the power lines 82 are electrically connected to the power chip 85.
  • the flexible printed circuit board 84 is provided with a plurality of power signal channels, and the plurality of power signal channels are connected to the plurality of power lines 82 There is a one-to-one correspondence, and the power signal channels are electrically connected to the power chip 85.
  • the first OLED pixel and the second OLED pixel at the opposite position can be synchronously displayed by the above-mentioned display device, and the luminous brightness is basically the same, so as to realize the synchronous display of the non-transparent display area and the transparent display area, reducing even The phenomenon of split screens in the areas on both sides of the boundary line between the non-transparent display area and the transparent display area is avoided. At the same time, the voltage drop on each power line can be reduced, and the uniformity of the display brightness of the display area can be improved.
  • the display device in this embodiment may be any product or component with display function, such as electronic paper, mobile phone, tablet computer, television, notebook computer, digital photo frame, and navigator.

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Abstract

一种显示装置(300)及OLED显示面板(1)，OLED显示面板(1)包括非透明显示区(111)、透明显示区(112)、显示驱动芯片(15)以及第一栅极驱动电路组(21)。非透明显示区(111)包括第一OLED像素(13)；透明显示区(112)包括第二OLED像素(14)；第一OLED像素(13)的第一像素驱动电路(22)连接至第一栅极驱动电路组(21)；第一栅极驱动电路组(21)连接至显示驱动芯片(15)的第一组栅极驱动信号通道；第二OLED像素(14)的第二像素驱动电路(23)连接至显示驱动芯片(15)的第二组栅极驱动信号通道；在同一帧画面中，第一像素驱动电路(22)的第一栅极驱动信号与第二像素驱动电路(23)的第二栅极驱动信号脉冲宽度基本相同，指定行的第一OLED像素(13)所在的像素行与交界线的交点(B、C)，落在透明显示区(112)的第二OLED像素(14)所在的像素行与交界线的交点(E、F)范围内。

Description

显示装置及其OLED显示面板 技术领域
本申请涉及OLED显示设备技术领域，尤其涉及一种显示装置及其OLED显示面板。
背景技术
随着显示装置的快速发展，用户对屏幕占比的要求越来越高。由于屏幕顶部需要安装摄像头、传感器、听筒等元件，因此，屏幕顶部通常会预留一部分区域用于安装上述元件，例如，苹果手机iphoneX的“刘海”区域，影响了屏幕的整体一致性。目前，全面屏显示受到业界越来越多的关注。
发明内容
本申请提供一种显示装置及其OLED显示面板，以解决相关技术中的不足。
根据本申请实施例的第一方面，提供一种OLED显示面板，包括：显示区、显示驱动芯片和第一栅极驱动电路组。所述显示区包括非透明显示区以及透明显示区，所述非透明显示区与所述透明显示区之间具有交界线；所述非透明显示区包括阵列式排布的第一OLED像素；所述阵列式排布的第一OLED像素的驱动方式为主动式；所述透明显示区包括阵列式排布的第二OLED像素，所述阵列式排布的第二OLED像素被驱动时，所述透明显示区执行显示功能；所述阵列式排布的第二OLED像素未被驱动时，所述透明显示区执行透光功能；所述阵列式排布的第二OLED像素的驱动方式为主动方式；各行所述第一OLED像素对应的第一像素驱动电路分别连接至第一栅极驱动电路组；所述第一栅极驱动电路组连接至显示驱动芯片的第一组栅极驱动信号通道；各行所述第二OLED像素对应的第二像素驱动电路分别连接至所述显示驱动芯片的第二组栅极驱动信号通道；所述显示驱动芯片用于通过所述第一组栅极驱动信号通道输出第一组时钟信号，所述第一栅极驱动电路组用于将所述第一组时钟信号转换为各行所述第一OLED像素对应的第一像素驱动电路的第一栅极驱动信号；所述显示驱动芯片还用于通过所述第二组栅极驱动信号通道输出各行所述第二OLED像素的第二像素驱动电路的第二栅极驱动信号；在同一帧画面中，每一行所述第二OLED像素的第二栅极驱动信号分别与指定行的所述第一OLED像素的第一栅极驱动信号的脉冲宽度基本相同，所述指定行的所述第一OLED像素所在的像素行与所述交界线的交点，落在所述透明显示区的第二OLED像素所在的像素行与所述交界线的交点范围内。
根据本申请实施例的第二方面，提供一种显示装置，包括：设备本体，具有器件区；上述的显示面板；所述显示面板覆盖在所述设备本体上；其中，所述器件区位于所述透明显示区的下方，且所述器件区包括透过所述透明显示区发射或者采集光线的感光器件。
本申请实施例的有益效果可包括：由于非透明显示区各行第一OLED像素对应的第一像素驱动电路分别连接至第一栅极驱动电路组，第一栅极驱动电路组连接至显示驱动芯片的第一组栅极驱动信号通道，且透明显示区中各行第二OLED像素的第二像素驱动电路分别连接至所述显示驱动芯片的第二组栅极驱动信号通道，显示驱动芯片通过所述第一组栅极驱动信号通道输出第一组时钟信号，所述第一栅极驱动电路组将所述第一组时钟信号转换为各行所述第一OLED像素对应的第一像素驱动电路的第一栅极驱动信号，所述显示驱动芯片还通过所述第二组栅极驱动信号通道输出各行所述第二OLED像素的第二像素驱动电路的第二栅极驱动信号，而且，在同一帧画面中，每一行所述第二OLED像素的第二栅极驱动信号分别与指定行的所述第一OLED像素的第一栅极驱动信号的脉冲宽度基本相同，其中，指定行的所述第一OLED像素所在的像素行与所述交界线的交点，落在所述透明显示区的第二OLED像素所在的像素行与所述交界线的交点范围内。这样，可以使位置相对的第一OLED像素与第二OLED像素进行同步显示，且发光亮度基本相同，进而实现非透明显示区以及透明显示区同步显示，降低甚至避免了非透明显示区与透明显示区的交界线两侧区域的分屏现象。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本申请。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本申请的实施例，并与说明书一起用于解释本申请的原理。
图1是根据本申请实施例示出的一种OLED显示面板的结构示意图；
图2A是根据本申请实施例示出的一种栅极驱动电路的原理框图；
图2B是根据本申请实施例示出的另一种栅极驱动电路的原理框图；
图3是根据本申请实施例示出的一种第一组栅极驱动信号与第二组栅极驱动信号的示意图；
图4是根据本申请实施例示出的一种第一OLED像素与第二OLED像素的位置关系示意图；
图5是根据本申请实施例示出的一种第一栅极驱动电路组的结构示意图；
图6是根据本申请实施例示出的一种3T1C像素驱动电路；
图7是根据本申请实施例示出的一种第二OLED像素的数据信号线的走线示意图；
图8是根据本申请实施例示出的一种第一OLED像素与第二OLED像素排布的结构示意图；
图9是根据相关技术示出的一种OLED显示面板的结构示意图；
图10是根据本申请实施例示出的一种OLED显示面板的结构示意图；
图11是根据本申请实施例示出的一种显示驱动芯片的剖面示意图；
图12是根据本申请实施例示出的另一种OLED显示面板的结构示意图；
图13是根据本申请实施例示出的另一种OLED显示面板的结构示意图；
图14是根据本申请实施例示出的另一种OLED显示面板的结构示意图；
图15根据本申请实施例示出的显示装置的平面结构示意图；以及
图16是根据本申请实施例示出的一种显示装置的结构示意图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本申请相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本申请的一些方面相一致的装置和方法的例子。
存在一种包括透明显示区与非透明显示区的全面屏，透明显示区既可以实现透光功能，也可以实现显示功能。然而，透明显示区与非透明显示区往往会出现显示不同步的情况，导致分屏的问题。
针对上述的技术问题，本申请实施例提供一种显示装置及其OLED(Organic Light-Emitting Diode)显示面板，可以解决上述的技术问题，实现非透明显示区以及透明显示区同步显示，降低甚至避免了非透明显示区与透明显示区的交界线两侧区域的分屏现象。
本申请实施例提供一种OLED显示面板，如图1～图4所示，该OLED显示面板1包括：显示区11，所述显示区11包括非透明显示区111以及透明显示区112。
如图1所示，所述非透明显示区111与所述透明显示区112之间具有交界线12。本实施例中避免的分屏现象，为出现在交界线12两侧区域的分屏现象。所述非透明显示区111包括阵列式排布的第一OLED像素13，所述阵列式排布的第一OLED像素13的驱动方式为主动式。所述透明显示区112包括阵列式排布的第二OLED像素14，所述阵列式排布的第二OLED像素14被驱动时，所述透明显示区112执行显示功能。所述阵列式排布的第二OLED像素14未被驱动时，所述透明显示区112执行透光功能，所述阵列式排布的第二OLED像素14的驱动方式为主动方式。例如，边框区16设置在显示区11的周围。显示驱动芯片15设置在边框区16的下部。
如图2A所示，在本实施例中，各行所述第一OLED像素13对应的第一像素驱动电路22分别连接至第一栅极驱动电路组21，所述第一栅极驱动电路组21连接至显示驱动芯片15的第一组栅极驱动信号通道(未示出)。各行所述第二OLED像素14对应的第二像素驱动电路23分别连接至所述显示驱动芯片15的第二组栅极驱动信号通道(未示出)。所述显示驱动芯片15用于通过所述第一组栅极驱动信号通道输出第一组时钟信号，所述第一栅极驱动电路组用于将所述第一组时钟信号转换为各行所述第一OLED像素对应的第一像素驱动电路22的第一栅极驱动信号。所述显示驱动芯 片15还用于通过所述第二组栅极驱动信号通道输出各行所述第二OLED像素14的第二像素驱动电路23的第二栅极驱动信号。
如图3所示，在同一帧画面中，每一行所述第二OLED像素14的第二栅极驱动信号分别与指定行的所述第一OLED像素13的第一栅极驱动信号的脉冲宽度T基本相同。
如图4所示，所述指定行的所述第一OLED像素13所在的像素行与所述交界线12的交点B、C落在所述透明显示区112的第二OLED像素14所在的像素行与所述交界线12的交点E、F范围内。
具体地，显示驱动芯片15包括第一组栅极驱动信号通道与第二组栅极驱动信号通道。其中，第一组栅极驱动信号通道用于输出第一组时钟信号给第一栅极驱动电路组。其中，如图5所示，第一栅极驱动电路组可包括依次串联的移位寄存器Y1、Y2、Y3、……，YL。位于首端的移位寄存器Y1的输入端用于接收第一组时钟信号，并对第一组时钟信号进行移位操作，得到输出信号1，输出信号1可以包括非透明显示区中第一行第一OLED像素的第一栅极驱动信号。移位寄存器Y1还将输出信号1输入移位寄存器Y2，移位寄存器Y2对输出信号1进行移位操作，得到输出信号2，输出信号2可以是非透明显示区中第二行第一OLED像素的第一栅极驱动信号。依次类推，移位寄存器YL的输出端输出的输出信号L是第L行第一OLED像素的第一栅极驱动信号。
在本实施例中，由于非透明显示区各行第一OLED像素对应的第一像素驱动电路分别连接至第一栅极驱动电路组，第一栅极驱动电路组连接至显示驱动芯片的第一组栅极驱动信号通道，且透明显示区中各行第二OLED像素的第二像素驱动电路分别连接至所述显示驱动芯片的第二组栅极驱动信号通道，显示驱动芯片通过所述第一组栅极驱动信号通道输出第一组时钟信号，所述第一栅极驱动电路组将所述第一组时钟信号转换为各行所述第一OLED像素对应的第一像素驱动电路的第一栅极驱动信号，所述显示驱动芯片还通过所述第二组栅极驱动信号通道输出各行所述第二OLED像素的第二像素驱动电路的第二栅极驱动信号，而且，在同一帧画面中，每一行所述第二OLED像素的第二栅极驱动信号分别与指定行的所述第一OLED像素的第一栅极驱动信号的脉冲宽度基本相同，其中，指定行的所述第一OLED像素所在的像素行与所述交界线的交点，落在所述透明显示区的第二OLED像素所在的像素行与所述交界线的交点范围内。这样，可以使位置相对的第一OLED像素与第二OLED像素进行同步显示，且发光亮度基本相同，进而实现非透明显示区以及透明显示区同步显示，降低甚至避免了非透明显示区与透明显示区的交界线两侧区域的分屏现象。
在一个实施例中，如图3所示，针对同一行所述第二OLED像素14与对应的指定行的所述第一OLED像素13，指定行的第一OLED像素13的第一栅极驱动信号包括第一扫描信号与第一发光控制信号，所述同一行第二OLED像素14的第二栅极驱动信号包括第二扫描信号与第二发光控制信号；所述第一扫描信号与所述第二扫描信号基本相同，所述第一发光控制信号与所述第二发光控制信号基本相同。
由于第一扫描信号与第二扫描信号基本相同，因此，向第一像素驱动电路与第二像素驱动电路中的存储电容中写数据的时间基本相同，从而，使得同一行第二OLED像素与对应的指定行的第一OLED像素的发光亮度基本相同，有利于降低甚至避免非透明显示区与透明显示区的交界线两侧区域的分屏现象。由于第一发光控制信号与第二发光控制信号基本相同，因此，可以使同一行第二OLED像素与对应的指定行的所述第一OLED像素进行同步发光，实现非透明显示区以及透明显示区同步显示。
只要第一扫描信号引起的第一OLED像素的发光亮度与第二扫描信号引起的第二OLED像素的发光亮度的差小于指定亮度值，可认为第一扫描信号与第二扫描信号基本相同。其中，上述的指定亮度值可以是第一OLED像素的发光亮度的3％。
在一个实施例中，所述第一像素驱动电路可为nT1C像素驱动电路，所述nT1C像素驱动电路中包括用于控制第一OLED像素13发光的至少一个第一开关晶体管，n为大于2的正整数。所述第二像素驱动电路为mT1C像素驱动电路，所述mT1C像素驱动电路中包括用于控制第二OLED像素发光的至少一个第二开关晶体管，m为大于2的正整数。
由于第一像素驱动电路为nT1C像素驱动电路，且nT1C像素驱动电路中包括用于控制第一OLED像素发光的至少一个第一开关晶体管，因此，至少一个第一开关晶体管中一个第一开关晶体管的栅极被输入第一扫描信号，而至少一个第一开关晶体管中另外一个第一开关晶体管的栅极被输入第一发光控制信号。如此，使得可以在对第一像素驱动电路中的存储电容写数据时禁止第一OLED 像素发光，同时避免第一OLED像素发光对向第一像素驱动电路中的存储电容写数据产生干扰。同理，由于第二像素驱动电路为mT1C像素驱动电路，且mT1C像素驱动电路中包括用于控制第二OLED像素发光的至少一个第二开关晶体管，因此，至少一个第二开关晶体管中一个第二开关晶体管的栅极被输入第二扫描信号，而至少一个第二开关晶体管中另外一个第二开关晶体管的栅极被输入第二发光控制信号。如此，使得可以在对第二像素驱动电路中的存储电容写数据时禁止第二OLED像素发光，同时避免第二OLED像素发光对向第二像素驱动电路中的存储电容写数据产生干扰。
优选地，m等于3。如图6所示，第二像素驱动电路为3T1C像素驱动电路，该3T1C像素驱动电路包括两个第二开关晶体管T1、T3，以及一个存储电容C、一个驱动晶体管T2。第二开关晶体管T3的源极连接数据线，栅极用于输入第二扫描信号GIP1，漏极与存储电容C的一个极板、驱动晶体管T2的栅极连接，驱动晶体管T2的源极连接存储电容C的另一个极板以及电源VCC，驱动晶体管T2的漏极连接第二开关晶体管T1的源极，第二开关晶体管T1的漏极连接OLED的阳极，第二开关晶体管T1的栅极用于输入第二发光控制信号GIP2，OLED的阴极接低电平ELVSS。
由于第二像素驱动电路为3T1C像素驱动电路，不但可以实现同一行第二OLED像素与对应的指定行的所述第一OLED像素进行同步发光，非透明显示区以及透明显示区同步显示，而且，结构简单，占用空间小，方便制备。
在另一个实施例中，所述第一像素驱动电路为2T1C像素驱动电路；所述第二像素驱动电路为2T1C像素驱动电路。而且，针对同一行所述第二OLED像素与对应的指定行的所述第一OLED像素，所述第一OLED像素的第一栅极驱动信号可仅包括第一扫描信号，所述第二OLED像素的第二栅极驱动信号可仅包括第二扫描信号；所述第一扫描信号与所述第二扫描信号基本相同。由于第一像素驱动电路为2T1C像素驱动电路，电路结构简单，占用空间小，方便制备。同理，第二像素驱动电路为2T1C像素驱动电路，电路结构简单，占用空间小，方便制备。
在一个实施例中，如图2A所示，各行所述第二OLED像素14对应的第二像素驱动电路23与所述显示驱动芯片15之间还可串联可变电阻24。通过可变电阻可以调节对第二像素驱动电路中的寄生电容的充电电流的大小，进而可以调节第二栅极驱动信号的脉冲宽度，有利于使上述的第二栅极驱动信号与上述的第一栅极驱动信号的脉冲宽度基本相同，且结构简单，占用空间小。
优选地，如图2B所示，所述可变电阻为晶体管T4。在一个实施例中，所述晶体管T4的源极S与所述第二像素驱动电路连接，漏级D、栅极G分别与所述显示驱动芯片15连接。在另一个实施例中，所述晶体管T4的漏极D与所述第二像素驱动电路23连接，源级S、栅极G分别与所述显示驱动芯片15连接。由于晶体管与OLED显示面板的制备工艺相兼容，便于制备。
其中，图2A与图2B中，当第一栅极驱动信号仅包括第一扫描信号时，第一栅极驱动电路组21与第一像素驱动电路22之间的信号线可以是一条，当第一栅极驱动信号包括第一扫描信号与第一发光控制信号时，第一栅极驱动电路组21与第一像素驱动电路22之间的信号线可以是两条，一条用于传输第一扫描信号，另一条用于传输第一发光控制信号。同理，当第二栅极驱动信号仅包括第二扫描信号时，显示驱动芯片15与第二像素驱动电路23之间的信号线可以是一条，当第二栅极驱动信号包括第二扫描信号与第二发光控制信号时，显示驱动芯片15与第二像素驱动电路23之间的信号线可以是两条，一条用于传输第二扫描信号，另一条用于传输第二发光控制信号。
在一个实施例中，如图7所示，所述第二像素驱动电路可设置在边框区16，具体是，可设置在透明显示区112上方的边框区16，这样，不但可以避免第二像素驱动电路影响透明显示区的透光率，且可以便于布线。
在另一个实施例中，如图4所示，所述第二像素驱动电路可设置在所述透明显示区112与非透明显示区111之间的过渡区17。这样，不但可以避免第二像素驱动电路影响透明显示区的透光率，还可以便于布线。过渡区17可不限于如图4所示的形状与位置，例如，过渡区17可以是三面包围所述透明显示区112。
在另一个实施例中，所述第二像素驱动电路可设置在非透明显示区111中。这样，不但可以避免第二像素驱动电路影响透明显示区的透光率，还可以便于布线。
在一个实施例中，如图1所示，同一列中，所述第一OLED像素13的第一像素驱动电路与所述第二OLED像素14的第二像素驱动电路连接至所述显示驱动芯片15的同一数据信号线18。各列所述第二OLED像素14与各列所述第一OLED像素13对应的所有数据信号线18的数据对应所述显示区的同一帧画面。由于同一列中第一OLED像素的第一像素驱动电路与第二OLED像素的第二像 素驱动电路连接至显示驱动芯片的同一数据信号线，而且，各列第二OLED像素与各列第一OLED像素对应的所有数据信号线的数据对应显示区的同一帧画面，这样，使得可以通过同一驱动芯片控制透明显示区与非透明显示区显示同一帧画面。
在一个实施例中，如图4与图7所示，当所述第二像素驱动电路23设置在边框区16时，各列所述第二OLED像素14对应的数据信号线18可从所述显示驱动芯片15依次经由所述非透明显示区111、所述透明显示区112与非透明显示区之间的过渡区延伸至所述边框区16对应的第二像素驱动电路。当然，各列所述第二OLED像素14对应的数据信号线18也可从所述显示驱动芯片15经由所述非透明显示区111延伸至所述边框区16对应的第二像素驱动电路23。
当所述第二像素驱动电路设置在边框区时，由于各列所述第二OLED像素对应的数据信号线从所述显示驱动芯片依次经由所述非透明显示区、所述透明显示区与非透明显示区之间的过渡区延伸至所述边框区对应的第二像素驱动电路，或者各列所述第二OLED像素对应的数据信号线从所述显示驱动芯片经由所述非透明显示区延伸至所述边框区对应的第二像素驱动电路，而没有经过透明显示区，这样可以避免影响透明显示区的透光率。
在一个实施例中，如图1所示，所述阵列式排布的第二OLED像素14可包括一行若干列第二OLED像素14。所述一行若干列第二OLED像素14的第二栅极驱动信号可与第一行所述第一OLED像素13(即，上文所述的指定行的第一OLED像素为第一行)对应的第一栅极驱动信号基本相同。由于透明显示区的第二OLED像素的排布方式是一行若干列，结构简单，方便制备，还便于控制。
优选地，如图8所示，所述一行若干列第二OLED像素为多个颜色的亚像素，一行中不同颜色的亚像素形成一像素单元6。因此，透明显示区也可以显示多种颜色的画面。
优选地，所述透明显示区内所有列第二OLED像素为同色亚像素。由于透明显示区内所有列第二OLED像素为同色亚像素，可以简化制备工艺。
在一个实施例中，如图8所示，下文所述的列方向为图8所示的Y方向，而行方向为图8所示的X方向。所述第一OLED像素可包括：块状第一电极31、OLED发光结构以及第二电极；所述一行若干列第二OLED像素包括：沿列方向延伸的第一电极32、位于所述第一电极32上的OLED发光结构35以及位于所述OLED发光结构上的第二电极。由于第二OLED像素的第一电极32沿列方向延伸，OLED发光结构与第二电极也沿列方向延伸，因此，简化了第二OLED像素的结构，便于制备，而且，可以减少图形膜层的交界，改善衍射问题。
优选地，如图8所示，所述第二OLED像素的OLED发光结构35在所述第一电极32上沿列方向延伸，或者，所述第二OLED像素的第一电极32上存在间隔分布的多个OLED发光结构35。例如，图8示出了发光结构35在第一电极32上沿列方向间隔分布。
优选地，所述多个OLED发光结构由像素定义层分隔，或所述多个OLED发光结构中相邻OLED发光结构之间无像素定义层。由于第二OLED像素的第一电极上可存在间隔分布的多个OLED发光结构，多个OLED发光结构可由像素定义层分隔，所述多个OLED发光结构中相邻OLED发光结构之间也可无像素定义层。
优选地，每列所述第二OLED像素的第一电极在所述OLED显示面板所在平面的投影包含一个图形单元或者两个以上的图形单元；所述图形单元为圆形、椭圆形、哑铃形、葫芦形或矩形。由于第二OLED像素的第一电极包括圆形、椭圆形、哑铃形、葫芦形或矩形的结构，因此，可以对干涉条纹叠加相消，有助于降低透明显示区透光模式下的衍射，提高成像质量。
优选地，所述第二OLED像素的第一电极在列方向的长度与行方向的宽度之比大于20:1。
优选地，各个所述第二OLED像素的第二电极连接成面电极，或各个所述第一OLED像素的第二电极与各个所述第二OLED像素的第二电极连接成面电极。由于各个所述第二OLED像素的第二电极连接成面电极，或者各个所述第一OLED像素的第二电极与各个所述第二OLED像素的第二电极连接成面电极，这样可以简化制备工艺。
优选地，各列所述第二OLED像素的第一电极以及OLED发光结构在所述透明显示区的中部一区段内沿列方向延伸、或自所述透明显示区的顶端向下延伸至中部、底端或自中部延伸至底端。
而且，由于全面屏的显示区域的长宽比逐渐加大，边框越来越窄，从而造成电源信号的电压降(IR drop)越来越严重，从而影响亮度均一性。如图9所示，显示面板的电源线包括电源线81、电 源线82以及电源线83。其中，电源线81为低电平电源线，电源线82、电源线83为高电平电源线。如图9所示，两条电源线82的距离电源输入端的近端分别为Q点、W点，而电源线82的距离电源输入端的远端为R点。从Q、W两点至R点距离变大，导致电源信号的电压降越来越严重。因此，本申请实施例还提供了用于解决该技术问题的技术方案，具体如下。
在一个实施例中，如图10所示，所述的OLED显示面板1，还可包括若干条电源线82，所述电源线82用于给所述第一OLED像素13与所述第二OLED像素14提供电源电压。
如图11所示，所述显示驱动芯片15下方开设有第一电源信号通道151。所述若干条电源线82中的至少一条电源线82穿过所述第一电源信号通道151电连接至所述第一OLED像素13与所述第二OLED像素14。由于显示驱动芯片下方开设有第一电源信号通道，且至少一条电源线82穿过所述第一电源信号通道电连接至所述第一OLED像素与所述第二OLED像素，这样，有利于增加连接到显示区的像素的电源线82的数量，在电源电压提供恒定电流的情况下，可以降低每条电源线82上的电流，进而减小每一根电源线82上的压降，可以提高显示区的显示亮度的均匀性。
在一个实施例中，如图10所示，所述至少一条电源线的数目是1。例如，一条电源线82。
优选地，如图12所示，穿过所述第一电源信号通道151的至少一条电源线的数目是2。第一电源信号通道151的数目也可是2。2条电源线分别穿过对应的第一电源信号通道151。当穿过显示驱动芯片15的电源线的数目是2时，可以进一步降低每一根电源线上的压降，提高显示区的显示亮度的均匀性。
在本申请实施例中，由于穿过所述第一电源信号通道的电源线的数目可以是1或2，因此，实现了实施方式的多样性。
优选地，所述显示驱动芯片15上可设有冗余引脚。冗余引脚与穿过所述第一电源信号通道的电源线并联。由于显示驱动芯片上设有冗余引脚，且冗余引脚与穿过所述第一电源信号通道的电源线82并联，不但可以减小电源线的电阻，还可以通过冗余引脚在焊接时进行支撑。
在一个实施例中，如图13所示，柔性印刷电路板84设置在所述的OLED显示面板1。所述显示驱动芯片15与所述柔性印刷电路板84电连接。所述柔性印刷电路板84上设有若干个第二电源信号通道。所述若干个第二电源信号通道与所述若干条电源线82一一对应。即每个电源线82可穿过一个对应的第二电源信号通道。其中，电源芯片85也与所述柔性印刷电路板84电连接。由于柔性印刷电路板上开设有第二电源信号通道，且电源线82穿过所述第二电源信号通道电连接至所述第一OLED像素与所述第二OLED像素，这样，有利于增加连接到显示区的像素的电源线82的数量，在电源电压提供恒定电流的情况下，可以降低每条电源线82上的电流，进而减小每一根电源线82上的压降，可以提高显示区的显示亮度的均匀性。
本申请实施例提供的显示面板1，如图14所示，还包括封装层201。其中，所述封装层201封装于所述OLED显示面板1远离所述OLED显示面板的衬底的一侧，所述透明显示区下方可设置感光器件。
优选地，所述OLED显示面板1的透明显示区112的至少部分被非透明显示区111包围。
优选地，所述OLED显示面板1包括偏光片205，所述偏光片205设置在封装层201上。偏光片205覆盖所述非透明显示区111且未覆盖所述透明显示区112。由于偏光片205可以消除进入显示面板的环境光再被反射出显示面板，因此，可以消除环境光干扰显示面板的正常显示。
如图15所示，本申请实施例还提供一种显示装置300，包括：设备本体C以及上述任一实施例所述的显示面板1。
其中，设备本体C具有器件区301，所述显示面板1覆盖在所述设备本体C上。所述器件区301位于所述透明显示区的下方，且所述器件区包括透过所述透明显示区发射或者采集光线的感光器件D。
优选地，所述感光器件D包括下述至少之一：摄像头、光线感应器、光线发射器。
在一个实施例中，所述OLED显示面板1还可包括所述显示驱动芯片15。
在另一个实施例中，如图16所示，所述显示装置300的OLED显示面板1还包括覆晶薄膜86，所述显示驱动芯片15设置在覆晶薄膜86上。
在另一个实施例中，所述显示装置还可包括柔性印刷电路板。所述柔性印刷电路板位于所述覆晶薄膜上。所述覆晶薄膜被包括在所述OLED显示面板中。所述显示驱动芯片15设置在覆晶薄膜上，所述显示驱动芯片15与所述柔性印刷电路板电连接。
在一个实施例中，如图13所示，当所述OLED显示面板1包括若干条电源线82时，所述显示装置还包括电源芯片85。所述若干条电源线82与所述电源芯片85电连接。
优选地，当所述OLED显示面板1还包括柔性印刷电路板84时，所述柔性印刷电路板84上设有若干个电源信号通道，所述若干个电源信号通道与所述若干条电源线82一一对应，且所述若干个电源信号通道电连接至所述电源芯片85。
本申请实施例中，通过上述的显示装置可以使位置相对的第一OLED像素与第二OLED像素进行同步显示，且发光亮度基本相同，进而实现非透明显示区以及透明显示区同步显示，降低甚至避免了非透明显示区与透明显示区的交界线两侧区域的分屏现象。同时，还可以减小每一根电源线上的压降，可以提高显示区的显示亮度的均匀性。
本实施例中的显示装置可以为：电子纸、手机、平板电脑、电视机、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。
在附图中，为了图示的清晰可能夸大了层和区域的尺寸。而且可以理解，当元件或层被称为在另一元件或层“上”时，它可以直接在其他元件上，或者可以存在中间的层。另外，可以理解，当元件或层被称为在另一元件或层“下”时，它可以直接在其他元件下，或者可以存在一个以上的中间的层或元件。另外，还可以理解，当层或元件被称为在两层或两个元件“之间”时，它可以为两层或两个元件之间唯一的层，或还可以存在一个以上的中间层或元件。通篇相似的参考标记指示相似的元件。
在本申请中，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性。术语“多个”指两个或两个以上，除非另有明确的限定。
本领域技术人员在考虑说明书及实践这里公开的公开后，将容易想到本申请的其它实施方案。本申请旨在涵盖本申请的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本申请的一般性原理并包括本申请未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本申请的真正范围和精神由下面的权利要求指出。

Claims (20)

  1. 一种OLED显示面板，包括：
    显示区，所述显示区包括:
    非透明显示区，所述非透明显示区包括阵列式排布的第一OLED像素，所述阵列式排布的第一OLED像素的驱动方式为主动式；以及
    透明显示区，所述非透明显示区与所述透明显示区之间具有交界线，所述透明显示区包括阵列式排布的第二OLED像素，所述阵列式排布的第二OLED像素被驱动时，所述透明显示区执行显示功能，所述阵列式排布的第二OLED像素未被驱动时，所述透明显示区执行透光功能，所述阵列式排布的第二OLED像素的驱动方式为主动方式；
    显示驱动芯片；以及
    第一栅极驱动电路组，连接至所述显示驱动芯片的第一组栅极驱动信号通道；其中
    各行所述第一OLED像素对应的第一像素驱动电路分别连接至所述第一栅极驱动电路组；各行所述第二OLED像素对应的第二像素驱动电路分别连接至所述显示驱动芯片的第二组栅极驱动信号通道；所述显示驱动芯片用于通过所述第一组栅极驱动信号通道输出第一组时钟信号，所述第一栅极驱动电路组用于将所述第一组时钟信号转换为各行所述第一OLED像素对应的第一像素驱动电路的第一栅极驱动信号；所述显示驱动芯片还用于通过所述第二组栅极驱动信号通道输出各行所述第二OLED像素的第二像素驱动电路的第二栅极驱动信号；在同一帧画面中，每一行所述第二OLED像素的第二栅极驱动信号分别与指定行的所述第一OLED像素的第一栅极驱动信号的脉冲宽度基本相同，所述指定行的所述第一OLED像素所在的像素行与所述交界线的交点，落在所述透明显示区的第二OLED像素所在的像素行与所述交界线的交点范围内。
  2. 根据权利要求1所述的OLED显示面板，其中，针对同一行所述第二OLED像素与对应的指定行的所述第一OLED像素，所述第一OLED像素的第一栅极驱动信号包括第一扫描信号与第一发光控制信号，所述第二OLED像素的第二栅极驱动信号包括第二扫描信号与第二发光控制信号；所述第一扫描信号与所述第二扫描信号基本相同，所述第一发光控制信号与所述第二发光控制信号基本相同。
  3. 根据权利要求1所述的OLED显示面板，其中，
    所述第一像素驱动电路为nT1C像素驱动电路，所述nT1C像素驱动电路中包括用于控制第一OLED像素发光的至少一个第一开关晶体管，n为大于2的正整数；
    所述第二像素驱动电路为mT1C像素驱动电路，所述mT1C像素驱动电路中包括用于控制第二OLED像素发光的至少一个第二开关晶体管，m为大于2的正整数。
  4. 根据权利要求1所述的OLED显示面板，其中，针对同一行所述第二OLED像素与对应的指定行的所述第一OLED像素，所述第一OLED像素的第一栅极驱动信号包括第一扫描信号，所述第二OLED像素的第二栅极驱动信号包括第二扫描信号；所述第一扫描信号与所述第二扫描信号基本相同。
  5. 根据权利要求1所述的OLED显示面板，其中，各行所述第二OLED像素对应的第二像素驱动电路与所述显示驱动芯片之间还串联可变电阻。
  6. 根据权利要求5所述的OLED显示面板，其中
    所述可变电阻为晶体管，
    所述晶体管的源极与所述第二像素驱动电路连接，漏级、栅极分别与所述显示驱动芯片连接；或者，
    所述晶体管的漏极与所述第二像素驱动电路连接，源级、栅极分别与所述显示驱动芯片连接。
  7. 根据权利要求1所述的OLED显示面板，其中
    所述第二像素驱动电路设置在所述OLED显示面板的非透明显示区、边框区或所述透明显示区与非透明显示区之间的过渡区。
  8. 根据权利要求1所述的OLED显示面板，其中，同一列中，所述第一OLED像素的第一像素驱动电路与所述第二OLED像素的第二像素驱动电路连接至所述显示驱动芯片的同一数据信号线；
    各列所述第二OLED像素与各列所述第一OLED像素对应的所有数据信号线的数据对应所述显示区的同一帧画面。
  9. 根据权利要求7所述的OLED显示面板，其中，
    当所述第二像素驱动电路设置在边框区时，各列所述第二OLED像素对应的数据信号线从所述显示驱动芯片依次经由所述非透明显示区、所述透明显示区与非透明显示区之间的过渡区延伸至设置在所述边框区的第二像素驱动电路；或者
    各列所述第二OLED像素对应的数据信号线从所述显示驱动芯片经由所述非透明显示区延伸至 设置在所述边框区的第二像素驱动电路。
  10. 根据权利要求1所述的OLED显示面板，其中，所述阵列式排布的第二OLED像素包括一行若干列第二OLED像素；所述一行若干列第二OLED像素的第二栅极驱动信号与第一行所述第一OLED像素对应的第一栅极驱动信号相同；
    所述一行若干列第二OLED像素为多个颜色的亚像素，一行中不同颜色的亚像素形成一像素单元；或
    所述透明显示区内的一行第二OLED像素为同色亚像素。
  11. 根据权利要求10所述的OLED显示面板，其中，所述第一OLED像素包括：块状第一电极、OLED发光结构以及第二电极；所述一行若干列第二OLED像素包括：沿列方向延伸的第一电极、位于所述第一电极上的OLED发光结构以及位于所述OLED发光结构上的第二电极；
    所述第二OLED像素的OLED发光结构在所述第一电极上沿列方向延伸，或者所述第二OLED像素的第一电极上存在间隔分布的多个OLED发光结构。
  12. 根据权利要求11所述的OLED显示面板，其中
    每列所述第二OLED像素的第一电极在所述OLED显示面板所在平面的正投影包含一个图形单元或者两个以上的图形单元。
  13. 根据权利要求11所述的OLED显示面板，其中
    所述第二OLED像素的第一电极在列方向的长度与行方向的宽度之比大于20:1；并且
    各个所述第二OLED像素的第二电极连接成面电极，或各个所述第一OLED像素的第二电极与各个所述第二OLED像素的第二电极连接成面电极。
  14. 根据权利要求11所述的OLED显示面板，其中
    各个所述第二OLED像素的第一电极以及OLED发光结构在所述透明显示区的中部一区段内沿列方向延伸、或自所述透明显示区的顶端向下延伸至中部、底端或自中部延伸至底端。
  15. 根据权利要求1所述的OLED显示面板，其中，所述显示面板还包括若干条电源线，所述电源线用于给所述第一OLED像素与所述第二OLED像素提供电源电压；
    所述显示驱动芯片下方开设有第一电源信号通道；所述若干条电源线中的至少一条电源线穿过所述第一电源信号通道电连接至所述第一OLED像素与所述第二OLED像素。
  16. 根据权利要求1所述的OLED显示面板，其中
    所述显示驱动芯片上设有冗余引脚；所述冗余引脚与穿过所述第一电源信号通道的电源线并联；或者
    所述OLED显示面板还包括柔性印刷电路板；所述显示驱动芯片与所述柔性印刷电路板电连接；所述柔性印刷电路板上设有若干个第二电源信号通道；所述若干个第二电源信号通道与所述若干条电源线一一对应。
  17. 根据权利要求1所述的OLED显示面板，还包括：封装层，所述封装层封装于所述OLED显示面板远离所述OLED显示面板的衬底的一侧，所述OLED显示面板上透明显示区的至少部分被非透明显示区包围；以及偏光片，所述偏光片设置在所述封装层上，所述偏光片覆盖所述非透明显示区且未覆盖所述透明显示区。
  18. 一种显示装置，包括：
    设备本体，具有器件区；以及
    权利要求1所述的OLED显示面板，所述显示面板覆盖在所述设备本体上；
    其中，所述器件区位于所述透明显示区的下方，且所述器件区包括透过所述透明显示区发射或者采集光线的感光器件。
  19. 根据权利要求18所述的显示装置，其中
    所述显示装置的OLED显示面板还包括覆晶薄膜，所述显示驱动芯片设置在所述覆晶薄膜上；或者，
    所述显示装置还包括柔性印刷电路板，所述显示装置的OLED显示面板还包括覆晶薄膜，所述柔性印刷电路板位于所述覆晶薄膜上；所述显示驱动芯片设置在所述覆晶薄膜上，所述显示驱动芯片与所述柔性印刷电路板电连接。
  20. 根据权利要求18所述的显示装置，其中
    当所述OLED显示面板包括若干条电源线时，所述显示装置还包括电源芯片，所述OLED显示面板包括的若干条电源线与所述电源芯片电连接。
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