WO2020057092A1 - 具有凹槽的显示面板的驱动电路、显示屏及显示设备 - Google Patents

具有凹槽的显示面板的驱动电路、显示屏及显示设备 Download PDF

Info

Publication number
WO2020057092A1
WO2020057092A1 PCT/CN2019/080479 CN2019080479W WO2020057092A1 WO 2020057092 A1 WO2020057092 A1 WO 2020057092A1 CN 2019080479 W CN2019080479 W CN 2019080479W WO 2020057092 A1 WO2020057092 A1 WO 2020057092A1
Authority
WO
WIPO (PCT)
Prior art keywords
type
driving
line
groove
display panel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2019/080479
Other languages
English (en)
French (fr)
Inventor
范文志
谢正芳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yungu Guan Technology Co Ltd
Original Assignee
Yungu Guan Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yungu Guan Technology Co Ltd filed Critical Yungu Guan Technology Co Ltd
Publication of WO2020057092A1 publication Critical patent/WO2020057092A1/zh
Priority to US16/850,028 priority Critical patent/US11164531B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • 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
    • 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]
    • G09G3/3275—Details of drivers for data electrodes
    • G09G3/3291—Details of drivers for data electrodes in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • 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
    • 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]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • 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
    • 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
    • G09G3/3233—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 with pixel circuitry controlling the current through the light-emitting element
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/10—Intensity circuits
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0404—Matrix technologies
    • G09G2300/0408—Integration of the drivers onto the display substrate
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0421—Structural details of the set of electrodes
    • G09G2300/0426—Layout of electrodes and connections
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels
    • G09G2300/0819—Several active elements per pixel in active matrix panels used for counteracting undesired variations, e.g. feedback or autozeroing
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels
    • G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels
    • G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
    • G09G2300/0861—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0876—Supplementary capacities in pixels having special driving circuits and electrodes instead of being connected to common electrode or ground; Use of additional capacitively coupled compensation electrodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0243—Details of the generation of driving signals
    • G09G2310/0251—Precharge or discharge of pixel before applying new pixel voltage
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0262—The addressing of the pixel, in a display other than an active matrix LCD, involving the control of two or more scan electrodes or two or more data electrodes, e.g. pixel voltage dependent on signals of two data electrodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen

Definitions

  • Exemplary embodiments of the present application relate to the field of display technology, and in particular, to a driving circuit, a display screen, and a display device of a display panel having a groove.
  • Exemplary embodiments of the present application provide a driving circuit, a display screen, and a display device of a display panel having a groove.
  • An exemplary embodiment of the present application provides a driving circuit for a display panel having a groove, including:
  • the first type of driving line is used to adjust the light emission brightness of pixels in the row or column where the groove is located; and / or is used to adjust the light emission brightness of pixels in the row or column adjacent to the groove;
  • the second type of driving line is used to adjust the light emission brightness of pixels in rows other than the first type of driving line, or to adjust the pixels of columns other than the first type of driving line.
  • the current applied to the first type of drive line is different from the current applied to the second type of drive line, or the voltage applied to the first type of drive line is different from the voltage applied to the second type of drive line. Voltage.
  • the first type of driving line is connected to pixels in a row where the groove is located and / or a row adjacent to the groove.
  • the first type of driving line is connected to pixels in a column where the groove is located and / or a column adjacent to the groove.
  • the first type of driving line includes at least two driving lines, and the currents applied to the at least two driving lines are the same or different, or the voltages applied to the at least two driving lines are the same or different.
  • the first type driving line is a first type initialization signal line
  • the second type driving line is a second type initialization signal line
  • the first type initialization signal line is used to adjust the reset of pixels in the row or column where the groove is located; and / or is used to adjust the reset of pixels in the row or column adjacent to the groove;
  • the second type of initialization signal line is used to adjust the reset of pixels in rows other than the line adjusted by the first type of initialization signal line, or is used to adjust other than the columns adjusted by the first type of initialization signal line. Reset of the pixels of the column.
  • the first type initialization signal line and the second type initialization signal line respectively receive the first type initialization signal and the second type initialization signal sent by the driving chip.
  • the first type driving line is a first type gate control signal line and the second type driving line is a second type gate control signal line;
  • the first type gate control signal line is used to adjust a gate potential of a pixel in a row or column where the groove is located and / or a row or column adjacent to the groove;
  • the second type gate control signal line is used to adjust the gate potential of pixels in a row other than the row adjusted by the first type gate control signal line, or is used to adjust the gate potential of the pixels other than the first type gate control signal line.
  • the first type gate control signal line and the second type gate control signal line respectively receive the first type gate control signal and the second type gate control signal sent by the shift register circuit.
  • the current or voltage applied on the first type of driving line is a fixed value.
  • the current or voltage applied on the first type of driving line is a non-fixed value determined according to a gray scale.
  • the driving circuit includes 7 P-type metal oxide semiconductor thin film transistors and 1 capacitor, and the first type driving line is a first type initialization signal line, the range of the fixed value is ⁇ 6V to 0V.
  • the first type driving line and the second type driving line are formed in the same process step.
  • the first type of driving line and a control terminal of a driving transistor or a switching transistor of a pixel connected to the first type of driving line are formed in the same process step; and / or, the second type of driving line is formed.
  • a control terminal of a driving transistor or a switching transistor of a pixel connected to the second type driving line is formed in the same process step.
  • the first-type initialization signal line and the second-type initialization signal line are formed in the same process step.
  • materials of the first-type initialization signal line and the second-type initialization signal line include Mo, Al, Cu, Ti, ITO, Ag, or Nb.
  • the shift register circuit is a GIP circuit.
  • the second type of driving line includes at least two driving lines, and currents applied to the at least two driving lines are the same or different, or voltages applied to the at least two driving lines are the same or different.
  • Another exemplary embodiment of the present application provides a display screen including: a display panel having a groove; and a driving circuit of the display panel having a groove according to any one of the exemplary embodiments of the present application.
  • the groove is located at an edge of the display panel.
  • Another exemplary embodiment of the present application provides a display device including the above display screen.
  • a driving circuit for a display panel with a groove includes: a first type of driving line for adjusting the light emission brightness of pixels in a row or column where the groove is located; and / or, For adjusting the light emission brightness of pixels in a row or column adjacent to the groove; a second type driving line for adjusting the light emission brightness of pixels in a row other than the line adjusted by the first type driving line, or For adjusting the light emission brightness of pixels in columns other than the column adjusted by the first type driving line; the current applied on the first type driving line is different from the current applied on the second type driving line, or, The voltage applied on the first type drive line is different from the voltage applied on the second type drive line.
  • a first type of driving line is used to adjust the light emission brightness of pixels in the row or column where the groove is located and / or a row or column adjacent to the groove
  • a second type of driving line is used to adjust the light emission brightness of pixels in other rows or columns.
  • FIG. 1 is a schematic diagram of a pixel circuit in an exemplary embodiment of the present application
  • FIG. 2 is a schematic diagram of a pixel circuit in another exemplary embodiment of the present application.
  • FIG. 3 is a schematic diagram of an application scenario in an exemplary embodiment of the present application.
  • FIG. 4 is a schematic circuit diagram of a driving circuit of a display panel having a groove in an exemplary embodiment of the present application
  • FIG. 5 is a schematic circuit diagram of a driving circuit of a display panel having a groove in another exemplary embodiment of the present application.
  • FIG. 6 is a schematic circuit diagram of a driving circuit of a display panel having a groove in another exemplary embodiment of the present application.
  • FIG. 7 is a schematic circuit diagram of a driving circuit of a display panel having a groove in another exemplary embodiment of the present application.
  • FIG. 8 is a schematic circuit diagram of a driving circuit of a display panel having a groove in another exemplary embodiment of the present application.
  • FIG. 9 is a schematic circuit diagram of a driving circuit of a display panel having a groove in another exemplary embodiment of the present application.
  • FIG. 10 is a schematic circuit diagram of a driving circuit of a display panel having a groove in another exemplary embodiment of the present application.
  • FIG. 11 is a schematic diagram of a 7T1C pixel circuit using a driving circuit of a display panel with a groove in an exemplary embodiment of the present application.
  • the recessed display panel has a serious problem of uneven brightness (mura).
  • the inventor's research found that the opening of the groove destroys the overall uniformity of the screen body, so that the capacitance values of the signal lines and power lines in the groove area and the area near the grooves and the capacitance values of the signal lines and power lines in other positions on the display panel Inconsistent, the voltage changes caused by capacitive coupling are also different, resulting in inconsistent luminous brightness between the groove area and the area near the groove and other positions of the display panel.
  • the mura problem of the display panel at the intersection of the grooved area and the non-grooved area is more serious.
  • the groove area is the row or column where the groove is located; the area near the groove is the row or column adjacent to the row or column where the groove is located.
  • the charging rate of the capacitor by the reset signal is different, and the charging delay is also Not the same; at the same time, because the reset time of the display panel is limited, within a certain reset time, the reset voltage of the pixels at the intersection of the recessed area and the non-grooved area and the reset voltage of the pixels at other positions on the display panel are reset. Differently, it affects the driving current of the organic light emitting diode (OLED), and then affects the light emission brightness. Therefore, adjusting the reset signals of the pixels in the groove area and the area near the groove can make the light emission brightness of the pixels in the groove area and the area near the groove consistent with the light emission brightness in other positions of the display panel.
  • OLED organic light emitting diode
  • the reset capacitor in the pixel driving circuit can input a reset signal and is connected to a gate of a driving thin film transistor (TFT).
  • TFT driving thin film transistor
  • Different reset signals generate different gate reset voltages.
  • the reset voltage affects the voltage Vgs between the gate and the source, which in turn affects the driving current of the driving TFT. Therefore, changing the reset voltage can change the driving current of the pixels, thereby adjusting the light emission brightness of the pixels on the display panel.
  • FIG. 1 is a schematic diagram of a pixel circuit. This example is used to analyze how an initialization signal (ie, a reset signal) affects the light emitting brightness of a pixel in a display panel.
  • an initialization signal ie, a reset signal
  • Vref initialization signal voltage
  • the data writing circuit is turned on, the gate of the driving TFT writes a data signal (Data signal), and the gate voltage of the driving TFT is Vdata.
  • the data signal is written into the gate of the driving TFT by the driving chip (driving IC) through the capacitance and resistance of the data line, and then through the data writing circuit. Therefore, there is a time delay in changing the potential of the gate from Vref to Vdata.
  • Vg Vref + (Vdata-Vref) ⁇ (1-exp (-t / rc) );
  • r is the equivalent resistance on the data trace
  • c is the equivalent capacitance on the data trace (that is, the sum of the storage capacitor C1 and the parasitic capacitor C2).
  • the light emission control circuit is turned on, and the OLED device emits light. Because the magnitude of the current flowing through the OLED device is the same as the magnitude of the current flowing through the driving TFT, the magnitude of the current driving the TFT is controlled by the gate potential, so the light-emitting brightness of the OLED device is controlled by the gate potential of the driving TFT. According to the above calculation formula, the magnitude of the gate potential is affected by the Vref signal. Therefore, the current flowing through the OLED device is affected by the Vref signal, and the light emission brightness of the pixels on the display panel is affected by the Vref signal. That is, the initialization signal (ie, the reset signal) affects the light emission brightness of the pixel.
  • the initialization signal ie, the reset signal
  • the capacitance values of the signal lines and power lines in the groove area and the vicinity of the grooves are not consistent with the capacitance values of the signal lines and power lines in other positions of the display panel, the voltage changes caused by the capacitive coupling effect are different, resulting in data signals being input to
  • the voltage value of the gate of the driving TFT is different, which affects the voltage Vgs between the gate and the source, and further affects the driving current of the driving TFT. Therefore, changing the gate control signal can change the driving current of the pixels, thereby adjusting the light emission brightness of the pixels on the display panel.
  • FIG. 2 is a schematic diagram of another pixel circuit. This example is used to analyze how a gate control signal affects the light emitting brightness of a pixel in a display panel.
  • the initialization circuit is turned on, and the gate of the driving TFT is written with Vref.
  • the GIP signal changes from the on signal V2 to the off signal V1, and the data writing circuit is turned off. Because of the capacitive coupling effect,
  • the light emission control circuit is turned on, and the OLED device emits light. Since the luminous brightness is controlled by the gate potential of the driving TFT, and according to the above calculation formula, the magnitude of the gate potential is affected by the GIP signal. Therefore, the current flowing through the OLED device is affected by the GIP signal, and the luminous brightness of the pixels on the display panel is affected. GIP signal effect. That is, the gate control signal affects the light emission brightness of a pixel.
  • An exemplary embodiment of the present application provides a driving circuit of a display panel having a groove.
  • the driving circuit can individually adjust the brightness of the pixels near the groove area, so that the brightness uniformity of the display panel is better.
  • FIG. 3 is a schematic diagram of an application scenario according to an exemplary embodiment of the present application.
  • the driving circuit 31 is applied to a display panel 32 having a groove for adjusting the light emission brightness of pixels in the display panel 32.
  • the groove is provided at an edge of the display panel 32.
  • the driving circuit 31 in this embodiment is used to adjust the light emission brightness of the pixels in the display panel.
  • the driving signals of the pixels in the groove area and the area near the groove are set to be different from the driving signals of pixels in other areas to improve the mura problem of the display panel at the intersection of the groove area and the non-groove area.
  • the first type of driving line is used to adjust the light emission brightness of pixels in the row or column where the groove is located; and / or is used to adjust the light emission brightness of pixels in the row or column adjacent to the groove;
  • the second type of driving line is used to adjust the light emission brightness of pixels in rows other than the first type of driving line adjustment, or to adjust the light emission brightness of pixels in columns other than the first type of driving line adjustment;
  • the current applied to the first type of drive line is different from the current applied to the second type of drive line, or the voltage applied to the first type of drive line is different from the voltage applied to the second type of drive line.
  • the light emission brightness of the pixels in the recessed area and the vicinity of the recessed area of the display panel is individually adjusted through the first type of driving line, so that the brightness consistency of the entire display panel with a recess is better, and the uniformity of the display is improved. To avoid mura problems caused by slotting.
  • the first type driving lines and the second type driving lines are formed in the same process step. This can reduce process steps and reduce production costs.
  • control terminals of the first type driving line and the driving transistor or switching transistor of the pixel connected to the first type driving line are formed in the same process step;
  • the control terminal of the driving transistor or the switching transistor is formed in the same process step.
  • the first type driving line and the second type driving line are used to adjust the initialization signal (ie, the reset signal) of the driving TFT, so the first type driving line and the second type driving line are directly connected to the gate (control terminal) of the driving TFT. ),As shown in Figure 1. Therefore, in the actual manufacturing process, the first type driving line and the second type driving line are prepared in the same layer as the gate electrode of the driving TFT, and can be formed in the same process step. For example, if a conductive material with a whole surface is prepared, a gate electrode and a driving line (including a driving line of a first type and a driving line of a second type) are simultaneously prepared by patterning a mask, and electrical connection can be achieved in the same layer preparation process.
  • the first type of driving lines and the second type of driving lines may be disposed on different layers, or may be disposed on the same layer but not on the same layer as the gate of the driving TFT.
  • the first type driving line and the second type driving line are used to adjust a gate control signal of the driving TFT.
  • the first type driving line and the second type driving line adjust the gate voltage of the driving TFT by adjusting the gate voltage of the switching TFT.
  • the gate voltage of the driving transistor M1 is adjusted by adjusting the gate voltage of the switching transistor M3.
  • the first type driving line and the second type driving line may be prepared in the same layer as the gate of the switching transistor M3, and may be formed in the same process step.
  • the first type of driving lines and the second type of driving lines may be disposed on different layers, or disposed on the same layer but not on the same layer as the gate of the switching TFT.
  • the first type of driving line includes at least two driving lines, and the currents applied to the at least two driving lines are the same or different.
  • the voltages applied to at least two drive lines are the same or different.
  • the number of driving lines included in the first type of driving line can be determined according to the number of rows or columns actually adjusted.
  • a driving line can individually adjust the light emission brightness of a row or column of pixels, and it can also adjust the pixels of multiple rows or columns The brightness of the light can be set as required. The more the number of driving lines is, the more accurate the control of pixel light emission brightness is. In other alternative embodiments, for convenience of adjustment, only one driving line may be provided for adjusting the light emission brightness of the pixels in the groove area and the area near the groove.
  • the second type of driving line includes at least one driving line.
  • the second type of driving line includes at least two driving lines, and the currents applied to the at least two driving lines are the same or different; or, the voltages applied to the at least two driving lines are the same or different.
  • the number of driving lines included in the second type of driving line can be determined according to the number of rows or columns actually adjusted.
  • a driving line can individually adjust the light emission brightness of a row or column of pixels, and it can also adjust the pixels of multiple rows or columns. The brightness of the light can be set as required.
  • the second type of driving wire may be provided as only one.
  • the first type of driving line is connected to the pixels in the row where the grooves are located and / or the rows adjacent to the grooves.
  • the first type of driving line is connected to the pixels in the column in which the groove is located and / or in the column adjacent to the groove.
  • the pixels adjusted by the first type of driving line are related to the scanning method. This is because the scanning method determines the type of mura. The mura appears in the horizontal direction and the mura appears in the vertical direction.
  • the first type of driving line adjusts row pixels or column pixels according to a scanning method, thereby avoiding the problem of horizontal mura or vertical mura caused by slotting.
  • the first type of driving line is a first type of initialization signal line and the second type of driving line is a second type of initialization signal line, that is, the pixels in the groove area and the area near the groove are individually adjusted by changing the initialization signal. Glow brightness.
  • FIG. 4 is a schematic diagram of an initialization circuit of a display panel having a groove in an exemplary embodiment of the present application. As shown in FIG. 4, the driving circuit for a display panel with a groove provided in this embodiment includes:
  • the first type of initialization signal line 1 is used to adjust the reset of pixels in the row or column where the groove is located; and / or is used to adjust the reset of pixels in the row or column adjacent to the groove;
  • the second type of initialization signal line 2 is used to adjust the reset of pixels in rows other than the row adjusted by the first type of initialization signal line 1, or to adjust the columns other than the columns adjusted by the first type of initialization signal line 1. Pixel reset;
  • the current applied to the first type initialization signal line 1 is different from the current applied to the second type initialization signal line 2 or the voltage applied to the first type initialization signal line 1 is different from the voltage applied to the second type initialization signal line 2 Voltage.
  • the driving circuit described above uses a first type of initialization signal line to adjust the reset of pixels in the row or column where the groove is located and / or adjacent rows or columns, and a second type of initialization signal line to adjust the reset of pixels in other rows or columns
  • the reset of the pixels in the recessed area and the vicinity of the recessed area of the display panel is individually adjusted through the first type of initialization signal line, so that the brightness consistency of the entire display panel with the recessed is better, the uniformity of the display is improved, and avoidance is achieved.
  • the first type of initialization signal line is connected to the pixels of the row where the grooves are located and the rows adjacent to the grooves. Normally, the orientation of the initialization signal line is the same as that of the scanning line.
  • the scanning method is up and down scanning, the scanning lines are arranged in the row direction. Therefore, the initialization signal line is also arranged in a row. Therefore, the first type of initialization signal line and the groove are located. Pixels in a row and a row adjacent to a groove are connected.
  • up-and-down scanning only indicates a scanning direction, and those skilled in the art should understand that the up-and-down scanning includes multiple scanning methods such as scanning from top to bottom, or scanning from bottom to top, or scanning from the middle to the bottom.
  • the scanning method of the display panel is to scan up and down and the groove is located on the upper part of the display panel.
  • the first type of initialization signal line 1 may be shown in FIG. Pixels; the first type of initialization signal line 1 may also be connected to the pixels of the row adjacent to the groove and the row where the groove is located as shown in FIG. 5.
  • the rows of pixels in the first type initialization signal line adjustment display panel may be determined according to the specific positions of the grooves. For example, when the groove is located at the bottom, the first type of initialization signal line 1 can adjust the pixels above the groove, the rows adjacent to the groove and / or the rows where the groove is located, and can be reasonably set as required. No longer.
  • the arrangement of the initialization signal lines is column arrangement, and the pixels of the first type initialization signal line are located in the columns where the grooves are located and / or the columns adjacent to the grooves. connection.
  • the first type initialization signal line is connected to a pixel in a column adjacent to the groove.
  • the first type of initialization signal line may also be connected only to pixels in the column where the groove is located, or connected to pixels in the column where the groove is located and the column adjacent to the groove at the same time, and may be set reasonably as required.
  • left-to-right scanning only indicates the scanning direction, and those skilled in the art should understand that left-to-right scanning includes multiple scanning methods such as scanning from left to right, or scanning from right to left, or scanning from the center to the left and right.
  • the first type of driving lines includes at least two driving lines, and the currents applied to the at least two driving lines are the same or different, or the voltages applied to the at least two driving lines are the same or different.
  • the current or voltage applied to the first type of driving line is a fixed value or a non-fixed value determined according to the gray scale.
  • the adjustment is simpler and the operation is more convenient.
  • the current or voltage applied to the first type of driving line is a non-fixed value determined according to the gray scale, the adjustment of the pixel brightness is more flexible and accurate, and the mura problem can be effectively solved.
  • the first type of driving line is used as an example to describe the first type of initialization signal line.
  • the first type of initialization signal line includes five initialization signal lines.
  • the current or voltage applied to each initialization signal line is different, which is convenient for individually adjusting each row of pixels to adjust the light emission brightness of each row of pixels to make the overall light emission brightness. The uniformity is better.
  • the currents or voltages applied to the five initialization signal lines of the first type of initialization signal lines are the same. In this case, the drive circuit is simple and the control of the drive circuit is simple.
  • the first type of driving line is a first type of initialization signal line 1 and the second type of driving line is a second type of initialization signal line 2; the first type of initialization signal line 1 and the second type of initialization signal line 2 are respectively Receive the first type initialization signal and the second type initialization signal sent by the driving chip (ie, the driving IC), as shown in FIG. 8.
  • the driving chip ie, the driving IC
  • the first-type initialization signal line 1 and the second-type initialization signal line 2 are formed in the same process step. Such an arrangement can save the process flow and reduce the production cost. In other embodiments, according to actual needs, the first-type initialization signal line 1 and the second-type initialization signal line 2 may also be disposed on different layers.
  • the materials of the first type initialization signal line 1 and the second type initialization signal line 2 may include Mo, Al, Cu, Ti, ITO, Ag, or Nb.
  • the first type initialization signal line 1 and the second type initialization signal line 2 may also be made of other conductive materials, such as indium zinc oxide IZO and the like.
  • the fixing Values range from -6V to 0V.
  • the size of the first-type initialization signal (also referred to as the first-type reset signal) can be obtained by testing a display panel that is actually applied.
  • the magnitude of the first type of reset signal can be determined through a large number of tests on the test piece. Because the test piece and the product (such as the display panel) are produced in the same batch, the process parameters and device structure of the two are the same, the mura appearing is the same, and the adjustment amount of the reset signal is also the same.
  • the size can get the size of the first type of reset signal.
  • the first type of driving line is a first type of gate control signal line and the second type of driving line is a second type of gate control signal line, that is, the groove area can be adjusted separately by changing the gate control signal and Luminance of pixels in the area near the groove.
  • FIG. 9 is a specific exemplary diagram of a driving circuit of a display panel having a groove in this embodiment. As shown in FIG. 9, the driving circuit for a display panel with a groove provided in this embodiment includes:
  • a first type gate control signal line 3 for adjusting a gate potential of a pixel in a row or column where the groove is located and / or a row or column adjacent to the groove;
  • the second type gate control signal line 4 is used to adjust the gate potential of the pixels in the rows other than the row adjusted by the first type gate control signal line 3, or is used to adjust the gate potential of the pixels other than the first type gate control signal line. 3 The gate potentials of the pixels in the columns other than the adjusted columns;
  • the current applied to the first type gate control signal line 3 is different from the current applied to the second type gate control signal line 4, or the voltage applied to the first type gate control signal line 3 is different from the second type gate The voltage is applied to the pole control signal line 4.
  • the gate potentials of the pixels in the recessed area and the vicinity of the recessed area of the display panel are individually adjusted through the first type of gate control signal line, so that the brightness consistency of the entire display panel with the recessed is better, which improves The uniformity of the display avoids mura problems caused by slotting.
  • the scanning mode of the display panel is scanning up and down and the groove is located on the upper part of the display panel.
  • the first type of gate control signal line connects a row of pixels below the groove adjacent to the groove; In other embodiments, pixels of the row where the groove is located, or pixels of a row below the groove and a row adjacent to the groove may be connected at the same time as required.
  • the position of the row pixels in the display panel adjusted by the first type of gate control signal line can be determined according to the specific position of the groove. For example, when the groove is located at the bottom, the first type of gate control signal line can adjust the pixels above the groove and the pixels adjacent to the groove and / or the row where the groove is located, which can be reasonably set as required.
  • up-and-down scanning only indicates a scanning direction, and those skilled in the art should understand that the up-and-down scanning includes multiple scanning modes such as scanning from top to bottom, scanning from bottom to top, or scanning from the center to the bottom.
  • the scanning mode of the display panel is left-right scanning
  • the gate control signals are arranged in columns
  • the first type of gate control signal line is connected to pixels in the column where the groove is located and / or the column adjacent to the groove.
  • the first type of gate control signal line includes at least two gate control signal lines, and the currents applied to the at least two gate control signal lines are the same or different, or at least two gate control signal lines The voltages applied are the same or different.
  • the current or voltage applied to the first type of gate control signal line is a fixed value or a non-fixed value determined according to the gray scale.
  • the number of the first type of gate control signal lines, and the voltage or current value applied on the gate control signal lines can be reasonably set according to actual needs, which is not limited in this embodiment.
  • the first type gate control signal line and the second type gate control signal line respectively receive the first type gate control signal and the second type gate control signal sent by the shift register circuit.
  • the shift register circuit may be a GIP circuit. In other embodiments, other shift register circuits may be used as required.
  • the size of the first type of gate control signal can also be obtained by testing a display panel that is actually applied. Through a large number of tests on the test piece, the magnitude of the first type of gate control signal can be determined.
  • FIG. 11 is a 7T1C pixel circuit using the driving circuit in this embodiment.
  • the first type of gate control signal line can individually adjust the S2 signal of a row of pixels below the groove and adjacent to the groove, and adjust the light emission brightness of the row of pixels so that the brightness of the row is consistent with the overall screen brightness.
  • the problem with horizontal mura the gate control signal is determined according to the pixel circuit actually used, and the concept of changing the gate potential by the gate control signal falls within the protection scope of this embodiment.
  • This embodiment also provides a display screen, which includes a display panel with a groove and a driving circuit for any of the display panels with a groove.
  • the above driving circuit is applied to a display panel with a groove.
  • the driving circuit adjusts the light emission brightness of pixels, so that the light emission brightness of all pixels on the display panel is consistent.
  • the mura problem is significantly improved, and the brightness uniformity of the display panel with grooves is improved.
  • the groove is located at an upper portion of the display panel, as shown in FIG. 4. In other embodiments, the grooves may also be located at the lower or middle portion of the display panel.
  • the position of the grooves at the display panel may be set reasonably according to actual needs. In this embodiment, the shape, size, and position of the grooves are not limited in any way.
  • This embodiment also provides a display device, including the display screen mentioned in any one of the above embodiments.
  • the display device may be a product or component having a display function, such as a mobile phone, a tablet, a television, a display, a palmtop computer, an ipod, a digital camera, a navigator, and the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

本申请的示例性的实施例提供了具有凹槽的显示面板的驱动电路、显示屏及显示设备。该驱动电路包括：第一类型驱动线，用于调整凹槽所在行或列的像素的发光亮度，和/或，用于调整与凹槽相邻的行或列的像素的发光亮度；第二类型驱动线，用于调整除第一类型驱动线调整的行以外的行的像素的发光亮度，以及，用于调整除第一类型驱动线调整的列以外的列的像素的发光亮度。第一类型驱动线上与第二类型驱动线上施加的电流或电压不相同。

Description

具有凹槽的显示面板的驱动电路、显示屏及显示设备 技术领域
本申请的示例性的实施例涉及显示技术领域，具体涉及具有凹槽的显示面板的驱动电路、显示屏及显示设备。
背景技术
随着OLED显示技术的发展，OLED显示屏的应用越来越广泛，屏体的形态也越来越多样化。开槽设计是一种新的技术，可以实现更高的屏占比，同时也可以避开某些功能元件。但是，开槽设计使得显示屏的亮度不均(mura)的问题更加严重。
发明内容
本申请的示例性实施例提供一种具有凹槽的显示面板的驱动电路、显示屏及显示设备。
本申请的一个示例性的实施例提供一种具有凹槽的显示面板的驱动电路，包括：
第一类型驱动线，用于调整所述凹槽所在行或列的像素的发光亮度；和/或，用于调整与所述凹槽相邻的行或列的像素的发光亮度；
第二类型驱动线，用于调整除所述第一类型驱动线调整的行以外的行的像素的发光亮度，或者，用于调整除所述第一类型驱动线调整的列以外的列的像素的发光亮度；
所述第一类型驱动线上施加的电流不同于所述第二类型驱动线上施加的电流，或者，所述第一类型驱动线上施加的电压不同于所述第二类型驱动线上施加的电压。
可选地，当显示面板的扫描方式为沿像素的列方向扫描时，所述第一类型驱动线与所述凹槽所在行和/或与所述凹槽相邻的行的像素连接。
可选地，当显示面板的扫描方式为沿像素的行方向扫描时，所述第一类型驱动线与所述凹槽所在列和/或与所述凹槽相邻的列的像素连接。
可选地，所述第一类型驱动线包括至少两根驱动线，所述至少两根驱动线上施加的电流相同或不同，或者，所述至少两根驱动线上施加的电压相同或不同。
可选地，所述第一类型驱动线为第一类型初始化信号线，且所述第二类型驱动线为第二类型初始化信号线；
所述第一类型初始化信号线，用于调整所述凹槽所在行或列的像素的复位；和/或，用于调整与凹槽相邻的行或列的像素的复位；
所述第二类型初始化信号线，用于调整除所述第一类型初始化信号线调整的行以外的行的像素的复位，或者，用于调整除所述第一类型初始化信号线调整的列以外的列的像素的复位。
可选地，第一类型初始化信号线和所述第二类型初始化信号线分别接收由驱动芯片发送的第一类型初始化信号和第二类型初始化信号。
可选地，所述第一类型驱动线为第一类型栅极控制信号线且所述第二 类型驱动线为第二类型栅极控制信号线；
所述第一类型栅极控制信号线，用于调整所述凹槽所在行或列和/或与凹槽相邻的行或列的像素的栅极电位；
所述第二类型栅极控制信号线，用于调整除所述第一类型栅极控制信号线调整的行以外的行的像素的栅极电位，或者，用于调整除所述第一类型栅极控制信号线调整的列以外的列的像素的栅极电位。
可选地，第一类型栅极控制信号线和所述第二类型栅极控制信号线分别接收由移位寄存器电路发送的第一类型栅极控制信号和第二类型栅极控制信号。
可选地，所述第一类型驱动线上施加的电流或电压为固定值。
可选地，所述第一类型驱动线上施加的电流或电压为根据灰阶确定的非固定值。
可选地，当所述驱动电路包括7个P型金属氧化物半导体薄膜晶体管和1个电容，且所述第一类型驱动线为第一类型初始化信号线时，所述固定值的范围为-6V至0V。
可选地，所述第一类型驱动线和第二类型驱动线在同一工艺步骤中形成。
可选地，所述第一类型驱动线和与所述第一类型驱动线连接的像素的驱动晶体管或者开关晶体管的控制端在同一工艺步骤中形成；和/或，所述第二类型驱动线和与所述第二类型驱动线连接的像素的驱动晶体管或者开 关晶体管的控制端在同一工艺步骤中形成。
可选地，所述第一类型初始化信号线和所述第二类型初始化信号线在同一工艺步骤中形成。
可选地，所述第一类型初始化信号线和所述第二类型初始化信号线的材料包括Mo、Al、Cu、Ti、ITO、Ag或Nb。
可选地，所述移位寄存器电路为GIP电路。
可选地，所述第二类型驱动线包括至少两根驱动线，所述至少两根驱动线上施加的电流相同或不同，或者，所述至少两根驱动线上施加的电压相同或不同。
本申请的示例性的另一个实施例提供一种显示屏，包括：具有凹槽的显示面板；本申请的示例性的实施例中任一所述的具有凹槽的显示面板的驱动电路。
可选地，所述凹槽位于所述显示面板的边缘。
本申请的示例性的又一个实施例提供一种显示设备，包括上述显示屏。
本申请的示例性的实施例提供的具有凹槽的显示面板的驱动电路，包括：第一类型驱动线，用于调整所述凹槽所在行或列的像素的发光亮度；和/或，用于调整与所述凹槽相邻的行或列的像素的发光亮度；第二类型驱动线，用于调整除所述第一类型驱动线调整的行以外的行的像素的发光亮度，或者，用于调整除所述第一类型驱动线调整的列以外的列的像素的发光亮度；所述第一类型驱动线上施加的电流不同于所述第二类型驱动线上施加 的电流，或者，所述第一类型驱动线上施加的电压不同于所述第二类型驱动线上施加的电压。上述驱动电路，采用第一类型驱动线调整凹槽所在行或列以及/或者与凹槽相邻的行或列的像素的发光亮度，第二类型驱动线调整其它行或者列的像素的发光亮度，通过第一类型驱动线单独调整显示面板上凹槽区域以及凹槽附近区域的像素的发光亮度，使得整个具有凹槽的显示面板的亮度一致性较好，提高了显示的均一性，避免了开槽造成的显示面板亮度不均的问题。
附图说明
为了更清楚地说明本申请的示例性的具体实施方式或现有技术中的技术方案，下面将对具体实施方式或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本申请的示例性的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请的示例性的一个实施例中像素电路的示意图；
图2为本申请的示例性的另一个实施例中像素电路的示意图；
图3为本申请的示例性的一个实施例中应用场景示意图；
图4为本申请的示例性的一个实施例中具有凹槽的显示面板的驱动电路的电路示意图；
图5为本申请的示例性的另一个实施例中具有凹槽的显示面板的驱动电路的电路示意图；
图6为本申请的示例性的又一个实施例中具有凹槽的显示面板的驱动 电路的电路示意图；
图7为本申请的示例性的另一个实施例中具有凹槽的显示面板的驱动电路的电路示意图；
图8为本申请的示例性的又一个实施例中具有凹槽的显示面板的驱动电路的电路示意图；
图9为本申请的示例性的另一个实施例中具有凹槽的显示面板的驱动电路的电路示意图；
图10为本申请的示例性的又一个实施例中具有凹槽的显示面板的驱动电路的电路示意图；
图11为本申请的示例性的一个实施例中采用具有凹槽的显示面板的驱动电路的7T1C像素电路的示意图。
具体实施方式
为了使申请的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请的示例性实施例进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
开设凹槽的显示面板存在较为严重的亮度不均(mura)问题。发明人研究发现，凹槽的开设破坏了屏体的整体均一性，使得凹槽区域以及凹槽附近区域的信号线和电源线的电容值与显示面板其它位置的信号线和电源线的电容值不一致，电容耦合引起的电压变化也不同，导致凹槽区域以及凹槽附近区域与显示面板其他位置的发光亮度不一致。其中，显示面板在凹槽区域与非凹槽区域交接处的mura问题更加严重。所述的凹槽区域为凹槽所在的 行或列；所述的凹槽附近区域为与凹槽所在行或列相邻的行或列。
由于凹槽区域以及凹槽附近区域的信号线和电源线的电容值与显示面板其他位置的信号线和电源线的电容值不一致，复位信号(初始化信号)对电容的充电率不同，充电延迟也不相同；同时，由于显示面板的复位时间有限，故在一定的复位时间内，凹槽区域和非凹槽区域交接处的像素复位后的复位电压与显示面板其它位置的像素复位后的复位电压不同，影响有机发光二极管(OLED)的驱动电流，进而影响发光亮度。因此，调整凹槽区域以及凹槽附近区域的像素的复位信号，可使得凹槽区域与凹槽附近区域的像素的发光亮度与显示面板其他位置的发光亮度一致。
像素驱动电路中的复位电容可输入复位信号，并且连接到驱动薄膜晶体管(TFT)的栅极。不同的复位信号会产生不同的栅极复位电压。复位电压影响栅极和源极之间的电压Vgs，进而影响驱动TFT的驱动电流。因此，改变复位电压可改变像素的驱动电流，进而调节显示面板上像素的发光亮度。
图1为一个像素电路的示意图，以此为例分析初始化信号(即复位信号)如何影响显示面板中像素的发光亮度。如图1所示，首先，初始化电路打开，驱动TFT的栅极写入初始化信号电压Vref。栅极电压Vg等于初始化电压Vref，即，Vg＝Vref。然后，数据写入电路打开，驱动TFT的栅极写入数据信号(Data信号)，驱动TFT的栅极电压为Vdata。
具体的，数据信号由驱动芯片(驱动IC)经过数据走线的电容和电阻，再经过数据写入电路写入驱动TFT的栅极。因此，栅极的电位从Vref变化 为Vdata有时间延迟。具体地，
Vg＝Vref+(Vdata-Vref)×(1-exp (-t/rc))；
式中，r为数据走线上的等效电阻，c为数据走线上的等效电容(即，存储电容C1和寄生电容C2之和)。
然后，发光控制电路打开，OLED器件发光。由于流过OLED器件的电流大小与流过驱动TFT的电流大小相同，驱动TFT的电流大小受到栅极电位的控制，因此，OLED器件的发光亮度受到驱动TFT栅极电位的控制。根据上述计算式，栅极电位大小受到Vref信号影响，因此，流过OLED器件的电流受到Vref信号影响，显示面板上像素的发光亮度受到Vref信号影响。即，初始化信号(即复位信号)影响像素的发光亮度。
另外，由于凹槽区域以及凹槽附近区域的信号线和电源线的电容值与显示面板其它位置的信号线和电源线的电容值不一致，电容耦合效应引起的电压变化不同，导致数据信号输入到驱动TFT栅极的电压值不同，影响栅极和源极之间的电压Vgs，进而影响驱动TFT的驱动电流。因此，改变栅极控制信号可改变像素的驱动电流，进而调节显示面板上像素的发光亮度。
图2为另一个像素电路的示意图，以此为例分析栅极控制信号如何影响显示面板中像素的发光亮度。如图2所示，初始化电路打开，驱动TFT的栅极写入Vref，栅极电压等于初始化电压，Vg＝Vref。栅极控制信号，也可称之为门面板(Gate in Panel，简称为GIP)信号，由关信号V1变为开信号V2，数据写入电路打开，驱动TFT的栅极写入数据信号，Vg＝Vdata。然 后，GIP信号由开信号V2变为关信号V1，数据写入电路关闭。因为电容耦合效应，
Figure PCTCN2019080479-appb-000001
发光控制电路打开，OLED器件发光。由于发光亮度受到驱动TFT的栅极电位的控制，并且根据上述计算式，栅极电位大小受到GIP信号影响，因此，流过OLED器件的电流受到GIP信号的影响，显示面板上像素的发光亮度受到GIP信号影响。即，栅极控制信号影响像素的发光亮度。
本申请的示例性的一个实施例提供具有凹槽的显示面板的驱动电路。该驱动电路可单独调整凹槽区域附近的像素的亮度，使得显示面板的亮度均一性较好。
图3为本申请的示例性的一个实施例的应用场景的示意图。将驱动电路31应用于具有凹槽的显示面板32中，用于调整显示面板32中像素的发光亮度。如图3所示，凹槽设置在显示面板32的边缘。在具有凹槽的显示面板32上制作像素电路时，采用本实施中的驱动电路31调整显示面板中的像素的发光亮度。将凹槽区域以及凹槽附近区域的像素的驱动信号与其它区域像素的驱动信号设置为不相同，改善显示面板在凹槽区域与非凹槽区域交接处的mura问题。
本申请的示例性的一个实施例提供的具有凹槽的显示面板的驱动电路，包括：
第一类型驱动线，用于调整凹槽所在行或列的像素的发光亮度；和/或，用于调整与凹槽相邻的行或列的像素的发光亮度；
第二类型驱动线，用于调整除第一类型驱动线调整的行以外的行的像素的发光亮度，或者，用于调整除第一类型驱动线调整的列以外的列的像素的发光亮度；
第一类型驱动线上施加的电流不同于第二类型驱动线上施加的电流，或者，第一类型驱动线上施加的电压不同于第二类型驱动线上施加的电压。
上述驱动电路，通过第一类型驱动线单独调整显示面板上凹槽区域以及凹槽附近区域的像素的发光亮度，使得整个具有凹槽的显示面板的亮度一致性较好，提高了显示的均一性，避免了开槽造成的mura问题。
在一实施例中，第一类型驱动线和第二类型驱动线在同一工艺步骤中形成。这样可以减少工艺步骤，降低生产成本。
优选地，第一类型驱动线和与第一类型驱动线连接的像素的驱动晶体管或者开关晶体管的控制端在同一工艺步骤中形成；第二类型驱动线和与第二类型驱动线连接的像素的驱动晶体管或者开关晶体管的控制端在同一工艺步骤中形成。
例如，第一类型驱动线和第二类型驱动线用于调整驱动TFT的初始化信号(即，复位信号)，故第一类型驱动线和第二类型驱动线直接连接驱动TFT的栅极(控制端)，如图1所示。因此，在实际制备过程中，第一类型驱动线和第二类型驱动线与驱动TFT的栅极同层制备，并且可在同一工艺步骤中形成。如制备一整面的导电材料，通过掩膜板图案化同时制备栅极和驱动线(包括第一类型驱动线和第二类型驱动线)，在同层制备的过程中便可实现电连接。这样还可以减少栅极与驱动线的层间互连，进一步降低生产 成本。在其它实施例中，也可以将第一类型驱动线、第二类型驱动线设置于不同层，或者设置于同一层但不与驱动TFT的栅极同层。
又例如，第一类型驱动线和第二类型驱动线用于调整驱动TFT的栅极控制信号。第一类型驱动线和第二类型驱动线通过调整开关TFT的栅极电压以调整驱动TFT的栅极电压。如图11所示，通过调整开关晶体管M3的栅极电压，进而调整驱动晶体管M1的栅极电压。在实际制备过程中，第一类型驱动线和第二类型驱动线可与开关晶体管M3的栅极同层制备，并且可在同一工艺步骤中形成。在其它实施例中，也可以将第一类型驱动线、第二类型驱动线设置于不同层，或者设置于同一层但不与开关TFT的栅极同层。
在一实施例中，第一类型驱动线包括至少两根驱动线，至少两根驱动线上施加的电流相同或不同。或者，至少两根驱动线上施加的电压相同或不同。第一类型驱动线所包含的驱动线的根数可根据实际调整的行或列的个数确定，一根驱动线可单独调整一行或者一列像素的发光亮度，也可调整多行或者多列像素的发光亮度，可以根据需要设置。驱动线的根数越多，对像素发光亮度的控制越精确。在其它可替换实施例中，为了调整便捷，也可仅设置一根驱动线以用于调整凹槽区域以及凹槽附近区域的像素的发光亮度。
在一实施例中，第二类型驱动线包括至少一根驱动线。优选地，第二类型驱动线包括至少两根驱动线，至少两根驱动线上施加的电流相同或不同；或者，至少两根驱动线上施加的电压相同或不同。第二类型驱动线所包含的驱动线的根数可根据实际调整的行或列的个数确定，一根驱动线可单独调整一行或者一列像素的发光亮度，也可调整多行或者多列像素的发光亮度， 可以根据需要设置。在其它可替换实施例中，为了调整便捷，第二类型驱动线也可仅设置为一根。
当显示面板的扫描方式为沿像素的列方向上下扫描时，第一类型驱动线与所述凹槽所在行和/或与所述凹槽相邻的行的像素连接。
当显示面板的扫描方式为沿像素的行方向左右扫描时，第一类型驱动线与所述凹槽所在列和/或与所述凹槽相邻的列的像素连接。
第一类型驱动线所调整的像素与扫描方式相关，这是由于扫描方式决定mura的类型，上下扫描造成水平方向出现mura，左右扫描造成垂直方向出现mura。第一类型驱动线根据扫描方式调整行像素或列像素，避免了开槽造成的水平mura或者垂直mura的问题。
在一实施例中，第一类型驱动线为第一类型初始化信号线且第二类型驱动线为第二类型初始化信号线，即通过改变初始化信号实现单独调整凹槽区域以及凹槽附近区域的像素的发光亮度。图4为本申请的示例性的一个实施例中具有凹槽的显示面板的初始化电路的示意图。如图4所示，本实施例提供的具有凹槽的显示面板的驱动电路，包括：
第一类型初始化信号线1，用于调整凹槽所在行或列的像素的复位；和/或，用于调整与凹槽相邻的行或列的像素的复位；
第二类型初始化信号线2，用于调整除第一类型初始化信号线1调整的行以外的行的像素的复位，或者，用于调整除第一类型初始化信号线1调整的列以外的列的像素的复位；
第一类型初始化信号线1上施加的电流不同于第二类型初始化信号线 2上施加的电流，或者，第一类型初始化信号线1上施加的电压不同于第二类型初始化信号线2上施加的电压。
上述驱动电路，采用第一类型初始化信号线调整凹槽所在行或列以及/或者与凹槽相邻的行或列的像素的复位，第二类型初始化信号线调整其它行或者列的像素的复位，通过第一类型初始化信号线单独调整显示面板上凹槽区域以及凹槽附近区域的像素的复位，使得整个具有凹槽的显示面板的亮度一致性较好，提高了显示的均一性，避免了开槽造成的mura问题。
在一实施例中，当显示面板的扫描方式为上下扫描时，第一类型初始化信号线与凹槽所在行以及凹槽相邻的行的像素连接。通常初始化信号线的走向与扫描线的走向一致，扫描方式为上下扫描时，扫描线设置在行方向上，故初始化信号线的排列方式也是行排列，因此，第一类型初始化信号线与凹槽所在行以及凹槽相邻的行的像素连接。上述上下扫描仅表示扫描的方向，本领域技术人员应当理解为上下扫描包括从上到下扫描，或者从下到上扫描，或者从中间向上下扫描等多种扫描方式。
在一实施例中，显示面板的扫描方式为上下扫描且凹槽位于显示面板的上部，第一类型初始化信号线1可如图4所示，连接凹槽下方、与凹槽相邻的行的像素；第一类型初始化信号线1也可如图5所示，连接凹槽下方与凹槽相邻的行以及凹槽所在行的像素。在其它实施例中，第一类型初始化信号线调整显示面板中的行像素可根据凹槽的具体位置确定。例如凹槽位于底部时，第一类型初始化信号线1可调整凹槽上方的、与凹槽相邻的行和/或凹槽所在行的像素，根据需要合理设置即可，本实施例对此不再赘述。
在一实施例中，当显示面板的扫描方式为左右扫描时，初始化信号线的排布方式为列排列，第一类型初始化信号线与凹槽所在列和/或凹槽相邻的列的像素连接。如图6所示，第一类型初始化信号线与凹槽相邻的列的像素连接。在其它实施例中，第一类型初始化信号线还可仅与凹槽所在列的像素连接，或者与凹槽所在列和凹槽相邻的列的像素同时连接，根据需要合理设置即可。上述左右扫描仅表示扫描的方向，本领域技术人员应当理解为左右扫描包括从左到右扫描，或者从右到左扫描，或者从中间向左右扫描等多种扫描方式。
在一实施例中，第一类型驱动线包括至少两根驱动线，至少两根驱动线上施加的电流相同或不同，或者，至少两根驱动线上施加的电压相同或不同。第一类型驱动线上施加的电流或电压为固定值，或者为根据灰阶确定的非固定值。
当第一类型驱动线上施加的电流或电压为固定值时，使得调整更加简单，操作更加便捷。当第一类型驱动线上施加的电流或电压为根据灰阶确定的非固定值时，使得像素亮度的调节更加灵活和精确，可以有效解决mura问题。
以第一类型驱动线为第一类型初始化信号线为例进行说明。如图7所示，对凹槽所在行和与凹槽相邻的行的像素分别进行调整。第一类型初始化信号线包括五根初始化信号线，每一根初始化信号线上施加的电流或者电压不相同，便于对每一行像素单独进行调整，以调节每一行像素的发光亮度，使得整体发光亮度的均一性更好。在其它实施例中，也可如图5所示，第一类型初始化信号线中的五根初始化信号线上施加的电流或者电压相同。此 种情况，驱动电路简单、对驱动电路的控制也简单。
在一实施例中，第一类型驱动线为第一类型初始化信号线1且第二类型驱动线为第二类型初始化信号线2，第一类型初始化信号线1和第二类型初始化信号线2分别接收由驱动芯片(即驱动IC)发送的第一类型初始化信号和第二类型初始化信号，如图8所示。
在一实施例中，第一类型初始化信号线1和第二类型初始化信号线2在同一工艺步骤中形成，这样设置可以节省工艺流程、降低生产成本。在其它实施例中，根据实际需要，第一类型初始化信号线1和第二类型初始化信号线2也可设置在不同层。
在一实施例中，第一类型初始化信号线1和第二类型初始化信号线2的材料可包括Mo、Al、Cu、Ti、ITO、Ag或Nb等。在其它实施例中，根据实际需要，第一类型初始化信号线1和第二类型初始化信号线2也可采用其它导电材料制成，如氧化铟锌IZO等。
在一实施例中，当驱动电路包括7个P型金属氧化物半导体薄膜晶体管和1个电容(即，驱动电路为PMOS 7T1C电路)且第一类型驱动线为第一类型初始化信号线时，固定值的范围为-6V至0V。
第一类型初始化信号(也可称为第一类型复位信号)的大小可通过对实际应用的显示面板进行测试得到。通过对测试片作大量测试可以确定第一类型复位信号的大小。由于测试片与产品(如显示面板)为同一批次产出，两者的工艺参数及器件结构均相同，出现的mura也一致，复位信号的调节量也一致，因此根据测试所得到的复位信号大小便可得到第一类型复位信 号的大小。
在一实施例中，第一类型驱动线为第一类型栅极控制信号线且第二类型驱动线为第二类型栅极控制信号线，即通过改变栅极控制信号实现单独调整凹槽区域以及凹槽附近区域的像素的发光亮度。图9为本实施例中具有凹槽的显示面板的驱动电路的一个具体示例性的示意图。如图9所示，本实施例提供的具有凹槽的显示面板的驱动电路，包括：
第一类型栅极控制信号线3，用于调整凹槽所在行或列和/或与凹槽相邻的行或列的像素的栅极电位；
第二类型栅极控制信号线4，用于调整除第一类型栅极控制信号线3调整的行以外的行的像素的栅极电位，或者，用于调整除第一类型栅极控制信号线3调整的列以外的列的像素的栅极电位；
第一类型栅极控制信号线3上施加的电流不同于第二类型栅极控制信号线4上施加的电流，或者，第一类型栅极控制信号线3上施加的电压不同于第二类型栅极控制信号线4上施加的电压。
上述驱动电路，通过第一类型栅极控制信号线单独调整显示面板上凹槽区域以及凹槽附近区域的像素的栅极电位，使得整个具有凹槽的显示面板的亮度一致性较好，提高了显示的均一性，避免了开槽造成的mura问题。
在一实施例中，显示面板的扫描方式为上下扫描且凹槽位于显示面板的上部，如图9所示，第一类型栅极控制信号线连接凹槽下方与凹槽相邻的一行像素；在其它实施例中，根据需要，也可以连接凹槽所在行的像素，或者同时连接凹槽所在行和凹槽下方、与凹槽相邻的行的像素。第一类型栅 极控制信号线调整的显示面板中的行像素的位置可根据凹槽的具体位置确定。例如凹槽位于底部时，第一类型栅极控制信号线可调整凹槽上方、且与凹槽相邻的行和/或凹槽所在行的像素，根据需要合理设置即可，本实施例对此不再一一列举。上述上下扫描仅表示扫描的方向，本领域技术人员应当理解为上下扫描包括从上到下扫描或者从下到上扫描或者从中间向上下扫描等多种扫描方式。
在其它实施例中，显示面板的扫描方式为左右扫描，栅极控制信号为列排布，第一类型栅极控制信号线与凹槽所在列和/或凹槽相邻的列的像素连接。上述左右扫描仅表示扫描的方向，本领域技术人员应当理解为左右扫描包括从左到右扫描或者从右到左扫描或者从中间向左右扫描等多种扫描方式。
在一实施例中，第一类型栅极控制信号线包括至少两根栅极控制信号线，至少两根栅极控制信号线上施加的电流相同或不同，或者，至少两根栅极控制信号线上施加的电压相同或不同。第一类型栅极控制信号线上施加的电流或电压为固定值，或者为根据灰阶确定的非固定值。上述第一类型栅极控制信号线的根数、以及栅极控制信号线上施加的电压或电流值均可根据实际需要合理设置，本实施例对此不作限定。
在一实施例中，第一类型栅极控制信号线和第二类型栅极控制信号线分别接收由移位寄存器电路发送的第一类型栅极控制信号和第二类型栅极控制信号。如图10所示，移位寄存器电路可为GIP电路。在其它实施例中，根据需要也可采用其它移位寄存器电路。
根据上文关于第一类型复位信号的测试和确定方法的描述，第一类型栅极控制信号的大小也可以通过对实际应用的显示面板进行测试得到。通过对测试片作大量测试，可以确定第一类型栅极控制信号的大小。
图11为采用本实施例中驱动电路的7T1C像素电路。具体地，通过第一类型栅极控制信号线可单独调整凹槽下方并且与凹槽相邻的一行像素的S2信号，调整该行像素的发光亮度，使得该行亮度与整体屏幕亮度一致，解决了水平mura的问题。在它实施例中，根据实际采用的像素电路确定栅极控制信号，通过栅极控制信号改变栅极电位的构思均落入本实施例保护范围内。
本实施例还提供一种显示屏，包括：具有凹槽的显示面板以及上述任一种具有凹槽的显示面板的驱动电路。
将上述驱动电路应用于具有凹槽的显示面板上，驱动电路对像素的发光亮度进行调整，使得显示面板上所有像素的发光亮度一致性较好，显示面板中凹槽区域以及凹槽附近区域的mura问题得到明显改善，提高了具有凹槽的显示面板的亮度均一性。
在一实施例中，凹槽位于显示面板的上部，如图4所示。在其它实施例中，凹槽也可位于显示面板的下部或者中部等，凹槽位于显示面板的位置可根据实际需要合理设置，本实施例对凹槽的形状、大小以及位置均不作任何限定。
本实施例还提供一种显示设备，包括上述实施例中任一所提及的显示屏。上述显示设备可以为手机、平板、电视机、显示器、掌上电脑、ipod、 数码相机、导航仪等具有显示功能的产品或者部件。
虽然结合附图描述了本申请的实施例，但是本领域技术人员可以在不脱离本申请的精神和范围的情况下作出各种修改和变型，这样的修改和变型均落入由所附权利要求所限定的范围之内。

Claims (19)

  1. 一种具有凹槽的显示面板的驱动电路，包括：
    第一类型驱动线，用于调整所述凹槽所在行或列的像素的发光亮度；和/或，用于调整与所述凹槽相邻的行或列的像素的发光亮度；
    第二类型驱动线，用于调整除所述第一类型驱动线调整的行以外的行的像素的发光亮度，或者，用于调整除所述第一类型驱动线调整的列以外的列的像素的发光亮度；
    所述第一类型驱动线上施加的电流不同于所述第二类型驱动线上施加的电流，或者，所述第一类型驱动线上施加的电压不同于所述第二类型驱动线上施加的电压。
  2. 根据权利要求1所述的具有凹槽的显示面板的驱动电路，其中，
    当所述显示面板的扫描方式为沿像素的列方向扫描时，所述第一类型驱动线与所述凹槽所在行和/或与所述凹槽相邻的行的像素连接。
  3. 根据权利要求1所述的具有凹槽的显示面板的驱动电路，其中，
    当所述显示面板的扫描方式为沿像素的行方向扫描时，所述第一类型驱动线与所述凹槽所在列和/或与所述凹槽相邻的列的像素连接。
  4. 根据权利要求1所述的具有凹槽的显示面板的驱动电路，其中，所述第一类型驱动线包括至少两根驱动线，所述至少两根驱动线上施加的电流相同或不同，或者，所述至少两根驱动线上施加的电压相同或不同。
  5. 根据权利要求1-3中任一项所述的具有凹槽的显示面板的驱动电路， 其中，所述第一类型驱动线为第一类型初始化信号线，且所述第二类型驱动线为第二类型初始化信号线；
    所述第一类型初始化信号线，用于调整所述凹槽所在行或列的像素的复位；和/或，用于调整与凹槽相邻的行或列的像素的复位；
    所述第二类型初始化信号线，用于调整除所述第一类型初始化信号线调整的行以外的行的像素的复位，或者，用于调整除所述第一类型初始化信号线调整的列以外的列的像素的复位。
  6. 根据权利要求5所述的具有凹槽的显示面板的驱动电路，其中，所述第一类型初始化信号线和所述第二类型初始化信号线分别接收由驱动芯片发送的第一类型初始化信号和第二类型初始化信号。
  7. 根据权利要求1-3中任一项所述的具有凹槽的显示面板的驱动电路，其中，所述第一类型驱动线为第一类型栅极控制信号线，且所述第二类型驱动线为第二类型栅极控制信号线；
    所述第一类型栅极控制信号线，用于调整所述凹槽所在行或列和/或与凹槽相邻的行或列的像素的栅极电位；
    所述第二类型栅极控制信号线，用于调整除所述第一类型栅极控制信号线调整的行以外的行的像素的栅极电位，以及，用于调整除所述第一类型栅极控制信号线调整的列以外的列的像素的栅极电位。
  8. 根据权利要求7所述的具有凹槽的显示面板的驱动电路，其中，所述第一类型栅极控制信号线和所述第二类型栅极控制信号线分别接收由移位寄存器电路发送的第一类型栅极控制信号和第二类型栅极控制信号。
  9. 根据权利要求1所述的具有凹槽的显示面板的驱动电路，其中，所述第一类型驱动线上施加的电流或电压为固定值。
  10. 根据权利要求1所述的具有凹槽的显示面板的驱动电路，其中，所述第一类型驱动线上施加的电流或电压为根据灰阶确定的非固定值。
  11. 根据权利要求9所述的具有凹槽的显示面板的驱动电路，其中，当所述驱动电路包括7个P型金属氧化物半导体薄膜晶体管和1个电容，且所述第一类型驱动线为第一类型初始化信号线时，所述固定值的范围为-6V至0V。
  12. 根据权利要求1所述的具有凹槽的显示面板的驱动电路，其中，所述第一类型驱动线和第二类型驱动线在同一工艺步骤中形成。
  13. 根据权利要求1所述的具有凹槽的显示面板的驱动电路，其中，所述第一类型驱动线和与所述第一类型驱动线连接的像素的驱动晶体管或者开关晶体管的控制端在同一工艺步骤中形成；
    和/或，
    所述第二类型驱动线和与所述第二类型驱动线连接的像素的驱动晶体管或者开关晶体管的控制端在同一工艺步骤中形成。
  14. 根据权利要求5所述的具有凹槽的显示面板的驱动电路，其中，所述第一类型初始化信号线和所述第二类型初始化信号线的材料包括Mo、Al、Cu、Ti、ITO、IZO、Ag或Nb。
  15. 根据权利要求8所述的具有凹槽的显示面板的驱动电路，其中，所 述移位寄存器电路为GIP电路。
  16. 根据权利要求1所述的具有凹槽的显示面板的驱动电路，其中，所述第二类型驱动线包括至少两根驱动线，所述至少两根驱动线上施加的电流相同或不同，或者，所述至少两根驱动线上施加的电压相同或不同。
  17. 一种显示屏，包括：
    具有凹槽的显示面板；
    权利要求1-16中任一项所述的具有凹槽的显示面板的驱动电路。
  18. 根据权利要求17所述的显示屏，其中，所述凹槽位于所述显示面板的边缘。
  19. 一种显示设备，包括如权利要求17所述的显示屏。
PCT/CN2019/080479 2018-09-19 2019-03-29 具有凹槽的显示面板的驱动电路、显示屏及显示设备 Ceased WO2020057092A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US16/850,028 US11164531B2 (en) 2018-09-19 2020-04-16 Drive circuit for a display panel having a slot, display screen and display device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811095431.5 2018-09-19
CN201811095431.5A CN109166520A (zh) 2018-09-19 2018-09-19 具有凹槽的显示面板的驱动电路、显示屏及显示设备

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US16/850,028 Continuation US11164531B2 (en) 2018-09-19 2020-04-16 Drive circuit for a display panel having a slot, display screen and display device

Publications (1)

Publication Number Publication Date
WO2020057092A1 true WO2020057092A1 (zh) 2020-03-26

Family

ID=64879701

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/080479 Ceased WO2020057092A1 (zh) 2018-09-19 2019-03-29 具有凹槽的显示面板的驱动电路、显示屏及显示设备

Country Status (3)

Country Link
US (1) US11164531B2 (zh)
CN (1) CN109166520A (zh)
WO (1) WO2020057092A1 (zh)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109166520A (zh) 2018-09-19 2019-01-08 云谷（固安）科技有限公司 具有凹槽的显示面板的驱动电路、显示屏及显示设备
KR102591793B1 (ko) * 2018-12-06 2023-10-23 삼성디스플레이 주식회사 표시 장치
US11127356B2 (en) * 2019-01-04 2021-09-21 Chengdu Boe Optoelectronics Technology Co., Ltd. Method for compensating brightness unevenness of a display device and related display device
KR102656469B1 (ko) * 2019-07-09 2024-04-12 삼성디스플레이 주식회사 유기 발광 표시 장치의 화소, 및 유기 발광 표시 장치
CN110854164A (zh) * 2019-10-25 2020-02-28 武汉华星光电半导体显示技术有限公司 显示装置
CN110890066B (zh) * 2019-11-26 2021-08-03 深圳市华星光电半导体显示技术有限公司 一种子像素电路、像素电路及显示装置
CN111834377A (zh) * 2020-02-19 2020-10-27 昆山国显光电有限公司 阵列基板、显示面板及显示装置
CN111883059B (zh) * 2020-08-17 2021-05-11 Oppo广东移动通信有限公司 一种oled驱动电路、方法、终端设备及存储介质
CN112419977B (zh) * 2020-11-27 2021-12-10 云谷（固安）科技有限公司 显示面板和显示装置
KR102830513B1 (ko) 2021-07-12 2025-07-08 삼성디스플레이 주식회사 화소 및 표시 장치
CN114664241A (zh) * 2022-04-13 2022-06-24 北京欧铼德微电子技术有限公司 驱动装置、驱动芯片及电子设备
WO2024087402A1 (zh) * 2022-10-28 2024-05-02 京东方科技集团股份有限公司 像素电路及其驱动方法、以及显示装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100053058A1 (en) * 2008-08-29 2010-03-04 Hitachi Displays, Ltd. Display Device
CN107610645A (zh) * 2017-10-26 2018-01-19 上海天马有机发光显示技术有限公司 一种oled显示面板、其驱动方法及显示装置
CN107622749A (zh) * 2017-09-08 2018-01-23 上海天马有机发光显示技术有限公司 一种显示面板、电致发光显示面板及显示装置
CN107731153A (zh) * 2017-11-30 2018-02-23 武汉天马微电子有限公司 异形显示面板和异形显示装置
CN107863061A (zh) * 2017-11-29 2018-03-30 武汉天马微电子有限公司 显示面板及其控制方法、显示装置
CN109166520A (zh) * 2018-09-19 2019-01-08 云谷（固安）科技有限公司 具有凹槽的显示面板的驱动电路、显示屏及显示设备

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4049085B2 (ja) * 2003-11-11 2008-02-20 セイコーエプソン株式会社 画素回路の駆動方法、画素回路および電子機器
KR101255310B1 (ko) * 2006-06-29 2013-04-15 엘지디스플레이 주식회사 Ｇｉｐ 구조의 액정표시장치용 기판 및 ｇｉｐ 구조의 액정표시장치의 제조 방법
JP2009204702A (ja) * 2008-02-26 2009-09-10 Seiko Epson Corp 電気光学装置、電気光学装置の駆動方法および電子機器
US8681082B2 (en) * 2009-11-11 2014-03-25 Sony Corporation Display device and drive method therefor, and electronic unit
CN102930813B (zh) * 2012-10-23 2016-03-23 京东方科技集团股份有限公司 像素驱动电路、显示装置及其驱动方法
CN103383835B (zh) 2013-07-02 2015-09-09 京东方科技集团股份有限公司 一种像素电路、显示面板及显示装置
CN104835453B (zh) * 2015-05-28 2017-04-05 京东方科技集团股份有限公司 一种像素电路、驱动方法及显示装置
CN105405397A (zh) 2015-10-14 2016-03-16 上海天马有机发光显示技术有限公司 一种像素电路及其驱动方法、一种有机发光显示装置
CN105957473B (zh) * 2016-06-30 2019-03-08 上海天马有机发光显示技术有限公司 一种有机发光显示面板及其驱动方法
CN106205491B (zh) 2016-07-11 2018-09-11 京东方科技集团股份有限公司 一种像素电路、其驱动方法及相关装置
US10424247B2 (en) 2017-04-28 2019-09-24 Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd AMOLED driving circuit and AMOLED display device
CN106910463B (zh) * 2017-04-28 2021-03-05 深圳市华星光电半导体显示技术有限公司 一种amoled驱动电路及显示装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100053058A1 (en) * 2008-08-29 2010-03-04 Hitachi Displays, Ltd. Display Device
CN107622749A (zh) * 2017-09-08 2018-01-23 上海天马有机发光显示技术有限公司 一种显示面板、电致发光显示面板及显示装置
CN107610645A (zh) * 2017-10-26 2018-01-19 上海天马有机发光显示技术有限公司 一种oled显示面板、其驱动方法及显示装置
CN107863061A (zh) * 2017-11-29 2018-03-30 武汉天马微电子有限公司 显示面板及其控制方法、显示装置
CN107731153A (zh) * 2017-11-30 2018-02-23 武汉天马微电子有限公司 异形显示面板和异形显示装置
CN109166520A (zh) * 2018-09-19 2019-01-08 云谷（固安）科技有限公司 具有凹槽的显示面板的驱动电路、显示屏及显示设备

Also Published As

Publication number Publication date
US20200243023A1 (en) 2020-07-30
US11164531B2 (en) 2021-11-02
CN109166520A (zh) 2019-01-08

Similar Documents

Publication Publication Date Title
WO2020057092A1 (zh) 具有凹槽的显示面板的驱动电路、显示屏及显示设备
US20240306426A1 (en) Display device
US20240233601A9 (en) Pixel circuit, driving method thereof, display substrate and display device
US9997546B2 (en) Array substrate, display panel, and display device
CN104318898B (zh) 像素电路、驱动方法和显示装置
US10181283B2 (en) Electronic circuit and driving method, display panel, and display apparatus
CN107123394A (zh) 一种有机发光显示面板及显示装置
WO2019109903A1 (zh) 显示屏、显示装置、显示电路及其亮度补偿方法
JP2021524926A (ja) 表示パネルおよび表示装置
CN107611142A (zh) 显示面板及显示装置
US12048212B2 (en) Wiring structure of pixel driving circuit, display panel, and display device
US12111992B2 (en) Touch panel with chip region having display pins and touch pins, preparation method therefor, and display apparatus
CN203894514U (zh) 显示面板和显示装置
CN107564474B (zh) 一种触控面板及触摸屏
CN108831302A (zh) 显示面板及显示装置
CN109585525B (zh) 阵列基板及其制作方法、显示面板和显示装置
CN107331342A (zh) 像素结构及其驱动方法、显示装置
CN109509793A (zh) 薄膜晶体管、其制造方法及电子装置
WO2023201470A1 (zh) 像素电路及其驱动方法、显示面板、显示装置
CN107507574A (zh) Oled显示面板及其补偿方法和装置、显示装置
CN106886112A (zh) 阵列基板、显示面板和显示装置
CN106297663A (zh) 一种像素电路、其驱动方法及相关装置
WO2021042523A1 (zh) 显示面板
JP7195928B2 (ja) 電荷放出回路、表示基板、表示装置及びその電荷放出方法
US11137652B2 (en) Array substrate and fabrication method thereof, and display device

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19862624

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19862624

Country of ref document: EP

Kind code of ref document: A1