WO2018072429A1 - 显示面板及显示设备 - Google Patents

显示面板及显示设备 Download PDF

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Publication number
WO2018072429A1
WO2018072429A1 PCT/CN2017/083123 CN2017083123W WO2018072429A1 WO 2018072429 A1 WO2018072429 A1 WO 2018072429A1 CN 2017083123 W CN2017083123 W CN 2017083123W WO 2018072429 A1 WO2018072429 A1 WO 2018072429A1
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WO
WIPO (PCT)
Prior art keywords
power
power supply
terminal
display panel
lead
Prior art date
Application number
PCT/CN2017/083123
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English (en)
French (fr)
Inventor
高永益
董婉俐
Original Assignee
京东方科技集团股份有限公司
成都京东方光电科技有限公司
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Application filed by 京东方科技集团股份有限公司, 成都京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/566,071 priority Critical patent/US10424248B2/en
Publication of WO2018072429A1 publication Critical patent/WO2018072429A1/zh

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    • 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
    • G09G3/3258—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 voltage across 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
    • 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]
    • G09G3/3266—Details of drivers for scan 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
    • G09G2300/04—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
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0223—Compensation for problems related to R-C delay and attenuation in electrodes of matrix panels, e.g. in gate electrodes or on-substrate video signal 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
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/028—Generation of voltages supplied to electrode drivers in a matrix display other than LCD

Definitions

  • Embodiments of the present disclosure relate to a display panel and a display device.
  • OLED Organic Light-Emitting Diode
  • OLED organic light emitting diode
  • An embodiment of the present disclosure provides a display panel including: a first power terminal disposed on a first side of the display panel; a second power terminal disposed on a second side of the display panel; and a power line And configured to transmit a power supply voltage, wherein the first side is opposite to the second side, the first power terminal and the second power terminal are in one-to-one correspondence, and the first power terminal is The second power terminal is configured to provide an equal supply voltage to the power line.
  • the display panel provided by the embodiment of the present disclosure, wherein the first end of the power line is electrically connected to the first power terminal, and the second end of the power line is electrically connected to the second power terminal.
  • the power line is disposed to be perpendicular to at least one of the first side and the second side.
  • the display panel provided by the embodiment of the present disclosure further includes a plurality of sub-pixels arranged in an array, wherein the sub-pixel is electrically connected to the power line to receive the power voltage.
  • the sub-pixel includes an organic light emitting diode and a driving circuit for driving the organic light emitting diode to emit light, and the power line and the driving The moving circuit is electrically connected to provide the supply voltage to the drive circuit.
  • the display panel provided by the embodiment of the present disclosure further includes: a plurality of data lines and a plurality of scanning signal lines disposed in a crossover; a data driver; and a scan signal driver, wherein the data driver is configured to pass through the data line Providing, to the driving circuit, light emission data of the organic light emitting diode to cause the organic light emitting diode to emit light during operation; the scan signal driver configured to provide a scan control signal to the driving circuit through the scan signal line .
  • the display panel provided by the embodiment of the present disclosure further includes a relay power terminal and a relay connection line, wherein the relay power terminal is disposed on a first side of the display panel, the relay power terminal and the second The power terminals are electrically connected through the relay connection line.
  • the relay power supply terminal is configured to provide a relay voltage
  • the relay voltage is equal to a sum of the power supply voltage and a reverse voltage drop on the relay connection line.
  • the display panel provided by the embodiment of the present disclosure further includes a first power lead and a second power lead, wherein the first end of the first power lead is electrically connected to the first power terminal, and the second power source A first end of the lead is electrically coupled to the relay power supply terminal.
  • the display panel provided by the embodiment of the present disclosure further includes a first power supply circuit, wherein the first power supply circuit includes a first power supply terminal and a second power supply terminal, and the first power supply terminal is configured to provide a first power supply voltage
  • the second power supply terminal is configured to provide a second power supply terminal, the first power supply terminal is electrically connected to the second end of the first power supply lead, and the second power supply terminal and the second power supply lead The two ends are electrically connected.
  • the first supply voltage is equal to a sum of the power supply voltage and a first lead voltage drop on the first power lead
  • the second supply voltage is equal to the The sum of the relay voltage and the second lead voltage drop across the second power lead.
  • the display panel provided by the embodiment of the present disclosure further includes a third power lead and a fourth power lead, wherein the first end of the third power lead is electrically connected to the first power terminal, and the fourth power source A first end of the lead is electrically coupled to the second power terminal.
  • the display panel provided by the embodiment of the present disclosure further includes a second power supply circuit, wherein the second power supply circuit includes a third power supply terminal and a fourth power supply terminal, and the third power supply terminal is configured to provide a third power supply voltage.
  • the fourth power supply terminal is configured to provide a fourth power supply voltage, and the third power supply terminal is electrically connected to the second end of the third power supply lead, the fourth power supply terminal and the fourth power supply terminal The second end of the power lead is electrically connected.
  • the third supply voltage is equal to a sum of the power supply voltage and a third lead voltage drop on the third power lead
  • the fourth supply voltage is equal to the The sum of the power supply voltage and the fourth lead voltage drop across the fourth power supply lead.
  • An embodiment of the present disclosure further provides a display device including the display panel provided by any embodiment of the present disclosure.
  • FIG. 1 is a schematic diagram of a display panel according to an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of sub-pixels in a display panel according to an embodiment of the present disclosure
  • FIG. 3 is a second schematic diagram of a display panel according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic diagram of a display device according to an embodiment of the present disclosure.
  • OLED organic light emitting diode
  • Embodiments of the present disclosure provide a display panel and a display device that can compensate for a voltage drop across a power line in a display panel, thereby reducing or eliminating the problem of uneven display brightness caused by a voltage drop of the display panel.
  • the embodiment of the present disclosure provides a display panel 100.
  • the display panel 100 includes a first power terminal 110 disposed on the first side 101 of the display panel 100, and a second power terminal 120 disposed on the display panel 100.
  • the second side 102 of the display panel 100; and the power line 130 are configured to transmit a power supply voltage VDD.
  • the first side 101 is opposite to the second side 102.
  • the first power terminal 110 and the second power terminal 120 are in one-to-one correspondence.
  • the first power terminal 110 and the second power terminal 120 are used to provide equalization to the power line 130.
  • the power supply voltage VDD The power supply voltage VDD.
  • first side and the second side may be oppositely disposed upper and lower sides or left and right sides.
  • the first end of the power line 130 is electrically connected to the first power terminal 110, and the second end of the power line 130 is electrically connected to the second power terminal 120.
  • the power line 130 is disposed perpendicular to the first side 101 and/or the second side 102.
  • the display panel 100 provided by the embodiment of the present disclosure further includes a plurality of sub-pixels 140 arranged in an array, and the sub-pixels 140 are electrically connected to the power line 130 to receive the power supply voltage VDD.
  • the sub-pixel 140 includes an organic light emitting diode OLED and a driving circuit 141 for driving the organic light emitting diode OLED to emit light, and the power line 130 and the driving circuit 141 are electrically connected.
  • the connection is to supply the power supply voltage VDD to the drive circuit 141.
  • the power line 130 may also be connected to the cathode of the organic light emitting diode OLED to provide a cathode power supply voltage VSS to the organic light emitting diode OLED. That is, the power supply voltage provided by the first power terminal and the second power terminal in the display panel provided by the embodiment of the present disclosure is not limited to the power supply.
  • the voltage VDD can also be other voltages that are affected by the voltage drop of the resistor, such as the cathode power supply voltage VSS of the organic light emitting diode OLED or other reference voltage used to drive the circuit.
  • the display panel 100 provided by the embodiment of the present disclosure further includes: a plurality of data lines and a plurality of scanning signal lines (not shown) disposed in a crossover manner; a data driver 150; and a scan signal driver 160
  • the data driver 150 is configured to provide illumination data of the organic light emitting diode OLED to the driving circuit 141 through the data line to cause the organic light emitting diode OLED to emit light during operation
  • the scan signal driver 160 is configured to provide the driving circuit 141 through the scanning signal line Scan the control signal.
  • the display panel 100 provided by the embodiment of the present disclosure further includes a relay power supply terminal 170 and a relay connection line 121.
  • the relay power supply terminal 170 is disposed on the first side 101 of the display panel 100, and the relay power supply terminal 170 and the second power supply terminal 120. It is electrically connected through the relay connection line 121.
  • the relay connection line 121 may be formed on the display panel 100 in the same layer as the power line 130 by using a patterning process; or the relay connection line 121 may be electrically connected to the intermediate power supply terminal and the second power supply terminal through an external flexible circuit board or an external lead. connection.
  • the display panel 100 provided by the embodiment of the present disclosure further includes a first power lead 111 and a second power lead 171.
  • the first end of the first power lead 111 is electrically connected to the first power terminal 110
  • the second power lead 171 is The first end is electrically connected to the relay power terminal 170.
  • first power supply lead 111 and the second power supply lead 171 may be disposed on a flexible circuit board.
  • the display panel 100 provided by the embodiment of the present disclosure further includes a first power supply circuit 180 including a first power supply terminal 181 and a second power supply terminal 182 for providing a first power supply voltage.
  • VS1 the second power supply terminal 182 is configured to provide a second power supply voltage VS2
  • the first power supply terminal 181 is electrically connected to the second end of the first power supply lead 111
  • the second power supply terminal 182 is electrically connected to the second end of the second power supply lead 171. connection.
  • the first power supply circuit 180 supplies power to the first power supply terminal 110 through the first power supply terminal 181 and the first power supply lead 111, so that the voltage of the first power supply terminal 110 is the power supply voltage VDD; the first power supply circuit 180 passes the second Power supply The sub-182 and the second power supply lead 171 provide a relay voltage VC to the relay power supply terminal 170.
  • the first power supply circuit can be implemented by using a power supply chip.
  • the first supply voltage VS1 is equal to the sum of the power supply voltage VDD and the first lead voltage drop VD1 on the first power supply lead 111
  • the first supply voltage VS1 and the second supply voltage VS2 can also be obtained experimentally.
  • the voltage values of the first power terminal 110 and the second power terminal 120 are simultaneously measured, and the first power supply terminal 110 and the second power supply terminal are adjusted by adjusting the first power supply voltage VS1 and the second power supply voltage VS2 of the first power supply circuit 180.
  • the voltage value of 120 is the power supply voltage VDD.
  • the embodiment of the present disclosure further provides a display panel 100 including: a first power terminal 110 disposed on the first side 101 of the display panel 100; and a second power terminal 120, The second side 102 of the display panel 100 is disposed.
  • the first power supply terminal 110 and the second power supply terminal 120 are used to provide an equal power supply voltage VDD.
  • the first power supply terminal 110 and the second power supply terminal 120 are in one-to-one correspondence.
  • first power terminal 110 and the second power terminal 120 may be strip power terminals, and a corresponding one of the first power terminal 110 and one second power terminal 120 may be electrically connected to the plurality of power lines 130 to Power line 130 provides a supply voltage.
  • the display panel 100 provided by the embodiment of the present disclosure may include a plurality of first power terminals 110, a plurality of second power terminals 120, and a plurality of power lines 130.
  • each power line may correspond to a first power terminal 110 and a second power terminal 120, each power line being configured to provide a supply voltage to a row or column of sub-pixels.
  • the display panel 100 can include a plurality of first power leads and/or a plurality of second power leads.
  • one relay power terminal 170 may be electrically connected to the plurality of second power terminals 120, and supply power voltages to the plurality of second power terminals 120 through the plurality of relay connection lines 121.
  • the display panel 100 may also include a plurality of power supply circuits, and the plurality of power supply circuits pass corresponding The power leads are supplied to the first power terminal and the relay power terminal, respectively.
  • the embodiments of the present disclosure include, but are not limited to, the above-described embodiments, and the manner and the number of the respective terminals, the power lines, the connecting lines, and the leads can be flexibly selected according to actual conditions.
  • the embodiment of the present disclosure provides a display panel 100.
  • the display panel 100 includes a first power terminal 110 disposed on the first side 101 of the display panel 100, and a second power terminal 120 disposed on the display panel 100.
  • the second side 102 of the display panel 100; and the power line 130 are configured to transmit a power supply voltage VDD.
  • the first side 101 is opposite to the second side 102.
  • the first power terminal 110 and the second power terminal 120 are in one-to-one correspondence.
  • the first power terminal 110 and the second power terminal 120 are used to provide equalization to the power line 130.
  • the power supply voltage VDD The power supply voltage VDD.
  • first side and the second side may be oppositely disposed upper and lower sides or left and right sides.
  • the first end of the power line 130 is electrically connected to the first power terminal 110, and the second end of the power line 130 is electrically connected to the second power terminal 120.
  • the power line 130 is disposed perpendicular to the first side 101 and/or the second side 102.
  • the display panel 100 provided by the embodiment of the present disclosure further includes a plurality of sub-pixels 140 arranged in an array, and the sub-pixels 140 are electrically connected to the power line 130 to receive the power supply voltage VDD.
  • the sub-pixel 140 includes an organic light emitting diode OLED and a driving circuit 141 for driving the organic light emitting diode OLED to emit light, and the power line 130 and the driving circuit 141 are electrically connected.
  • the connection is to supply the power supply voltage VDD to the drive circuit 141.
  • the power line 130 may also be connected to the cathode of the organic light emitting diode OLED to provide a cathode power supply voltage VSS to the organic light emitting diode OLED. That is, the power supply voltage provided by the first power terminal and the second power terminal in the display panel provided by the embodiment of the present disclosure is not limited to the power supply voltage VDD, and may be other voltages affected by the voltage drop of the resistor, such as an organic light emitting diode.
  • the display panel 100 provided by the embodiment of the present disclosure further includes: a plurality of data lines and a plurality of scanning signal lines (not shown) disposed in a crossover manner; a data driver 150; and a scan signal driver 160.
  • the data driver 150 is configured to pass the data line to the drive circuit 141
  • the light emission data of the organic light emitting diode OLED is provided to cause the organic light emitting diode OLED to emit light during operation
  • the scan signal driver 160 is configured to provide a scan control signal to the drive circuit 141 through the scan signal line.
  • the display panel 100 provided by the embodiment of the present disclosure further includes a third power supply lead 191 and a fourth power supply lead 192.
  • the first end of the third power lead 191 is electrically connected to the first power terminal 110, and the first end of the fourth power lead 192 is electrically connected to the second power terminal 120.
  • the third power supply lead 191 and the fourth power supply lead 192 may be disposed on a flexible circuit board.
  • the display panel 100 provided by the embodiment of the present disclosure further includes a second power supply circuit 190 including a third power supply terminal 193 and a fourth power supply terminal 194 for providing a third power supply voltage.
  • the fourth power supply terminal 194 is for providing the fourth power supply voltage VS4
  • the third power supply terminal 193 is electrically connected to the second end of the third power supply lead 191
  • the fourth power supply terminal 194 is electrically connected to the second end of the fourth power supply lead 192. connection.
  • the second power supply circuit can be implemented by using a power supply chip.
  • the third supply voltage VS3 is equal to the sum of the power supply voltage VDD and the third lead voltage drop VD3 on the third power supply lead 191
  • the third supply voltage VS3 and the fourth supply voltage VS4 can also be obtained experimentally.
  • the voltage values of the first power supply terminal 110 and the second power supply terminal 120 are simultaneously measured, and the first power supply terminal 110 and the second power supply terminal are made by adjusting the third supply voltage VS3 and the fourth supply voltage VS4 of the second power supply circuit 190.
  • the voltage value of 120 is the power supply voltage VDD.
  • first power terminal 110 and the second power terminal 120 may be strip power terminals, and a corresponding one of the first power terminal 110 and one second power terminal 120 may be electrically connected to the plurality of power lines 130 to Power line 130 provides a supply voltage.
  • the display panel 100 provided by the embodiment of the present disclosure may include a plurality of first power terminals 110, a plurality of second power terminals 120, and a plurality of power lines 130.
  • each power cord can correspond to one And a first power supply terminal 110 and a second power supply terminal 120, each of the power supply lines being configured to supply a power supply voltage to one row or one column of sub-pixels.
  • the display panel 100 may include a plurality of third power supply leads and/or a plurality of fourth power supply leads.
  • the display panel 100 may also include a plurality of power supply circuits that supply power to the first power supply terminal and the second power supply terminal through respective power supply leads.
  • the embodiments of the present disclosure include, but are not limited to, the above-described embodiments, and the manner and the number of the respective terminals, the power lines, the connecting lines, and the leads can be flexibly selected according to actual conditions.
  • the embodiment of the present disclosure further provides a display device 10, as shown in FIG. 4, which includes the display panel 100 provided by any embodiment of the present disclosure.
  • the display device may include any product or component having a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
  • a display function such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
  • Embodiments of the present disclosure provide a display panel and a display device that can compensate for a voltage drop across a power line in a display panel, thereby reducing or eliminating the problem of uneven display brightness caused by a voltage drop of the display panel.

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

Abstract

一种显示面板及显示设备，该显示面板包括：第一电源端子(110)，设置于所述显示面板的第一侧边(101)；第二电源端子(120)，设置于所述显示面板的第二侧边(102)；以及电源线(130)，被配置为传输电源电压(VDD)。所述第一侧边(101)与所述第二侧边(102)相对设置，所述第一电源端子(110)和所述第二电源端子(120)一一对应，所述第一电源端子(110)与所述第二电源端子(120)用于向所述电源线(130)提供相等的所述电源电压。该显示面板及显示设备可对显示面板中电源线上的电阻压降进行补偿，进而减小或消除显示面板因电阻压降造成的显示亮度不均匀的问题。

Description

显示面板及显示设备 技术领域
本公开的实施例涉及一种显示面板及显示设备。
背景技术
在显示领域，有机发光二极管(Organic Light-Emitting Diode,OLED)显示面板具有自发光、对比度高、能耗低、视角广、响应速度快、可用于挠曲性面板、使用温度范围广、制造简单等特点，具有广阔的发展前景。
在有机发光二极管(OLED)显示面板中，会存在电阻压降(IR drop)现象，电阻压降是由于显示面板中导线的自身电阻分压造成的，即电流经过显示面板中的导线时，根据欧姆定律，导线上会产生一定的电压降。因此，位于不同位置的像素单元受到电阻压降影响的程度也不相同，这会导致显示面板显示不均匀。因此，需要对OLED显示面板中的电阻压降进行补偿。
发明内容
本公开的实施例提供一种显示面板，包括：第一电源端子，设置于所述显示面板的第一侧边；第二电源端子，设置于所述显示面板的第二侧边；以及电源线，被配置为传输电源电压，其中，所述第一侧边与所述第二侧边相对设置，所述第一电源端子和所述第二电源端子一一对应，所述第一电源端子与所述第二电源端子用于向所述电源线提供相等的所述电源电压。
例如，本公开实施例提供的显示面板，其中，所述电源线的第一端与所述第一电源端子电连接，所述电源线的第二端与所述第二电源端子电连接。
例如，在本公开实施例提供的显示面板中，所述电源线被设置为垂直于所述第一侧边和所述第二侧边中至少之一。
例如，本公开实施例提供的显示面板，还包括阵列排布的多个子像素，其中，所述子像素与所述电源线电连接以接收所述电源电压。
例如，在本公开实施例提供的显示面板中，所述子像素包括有机发光二极管及用于驱动所述有机发光二极管发光的驱动电路，所述电源线与所述驱 动电路电连接以向所述驱动电路提供所述电源电压。
例如，本公开实施例提供的显示面板，还包括：交叉设置的多条数据线和多条扫描信号线；数据驱动器；以及扫描信号驱动器，其中，所述数据驱动器被配置为通过所述数据线向所述驱动电路提供所述有机发光二极管的发光数据，以使所述有机发光二极管在工作时发光；所述扫描信号驱动器被配置为通过所述扫描信号线向所述驱动电路提供扫描控制信号。
例如，本公开实施例提供的显示面板，还包括中转电源端子以及中转连接线，其中，所述中转电源端子设置于所述显示面板的第一侧边，所述中转电源端子与所述第二电源端子通过所述中转连接线电连接。
例如，在本公开实施例提供的显示面板中，所述中转电源端子用于提供中转电压，所述中转电压等于所述电源电压与所述中转连接线上的中转压降之和。
例如，本公开实施例提供的显示面板，还包括第一电源引线、第二电源引线，其中，所述第一电源引线的第一端与所述第一电源端子电连接，所述第二电源引线的第一端与所述中转电源端子电连接。
例如，本公开实施例提供的显示面板，还包括第一供电电路，其中，所述第一供电电路包括第一供电端子和第二供电端子，所述第一供电端子用于提供第一供电电压，所述第二供电端子用于提供第二供电电压，所述第一供电端子与所述第一电源引线的第二端电连接，所述第二供电端子与所述第二电源引线的第二端电连接。
例如，在本公开实施例提供的显示面板中，所述第一供电电压等于所述电源电压与所述第一电源引线上的第一引线压降之和，所述第二供电电压等于所述中转电压与所述第二电源引线上的第二引线压降之和。
例如，本公开实施例提供的显示面板，还包括第三电源引线和第四电源引线，其中，所述第三电源引线的第一端与所述第一电源端子电连接，所述第四电源引线的第一端与所述第二电源端子电连接。
例如，本公开实施例提供的显示面板，还包括第二供电电路，其中，所述第二供电电路包括第三供电端子和第四供电端子，所述第三供电端子用于提供第三供电电压，所述第四供电端子用于提供第四供电电压，所述第三供电端子与所述第三电源引线的第二端电连接，所述第四供电端子与所述第四 电源引线的第二端电连接。
例如，在本公开实施例提供的显示面板中，所述第三供电电压等于所述电源电压与所述第三电源引线上的第三引线压降之和，所述第四供电电压等于所述电源电压与所述第四电源引线上的第四引线压降之和。
本公开的实施例还提供一种显示设备，包括本公开任一实施例提供的显示面板。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对实施例或相关技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅涉及本公开的一些实施例，并非对本公开的限制。
图1是本公开实施例提供的一种显示面板的示意图之一；
图2是本公开实施例提供的显示面板中子像素的示意图；
图3是本公开实施例提供的一种显示面板的示意图之二；以及
图4是本公开实施例提供的一种显示设备的示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例的附图，对本发明实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本发明的一部分实施例，而不是全部的实施例。基于所描述的本发明的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本发明保护的范围。
除非另外特别定义，本公开使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。此外，在本公开各个实施例中，相同或类似的参考标号表示相同或类似的构件。
在有机发光二极管(OLED)显示面板中，由于电源线自身的电阻分压，电源线上会存在电阻压降(IR drop)现象，即电流经过显示面板中的电源线时，会产生一定的电压降。因此，位于不同位置的像素单元受到电阻压降影 响的程度也不相同，例如，显示面板近端(距离供电电路或供电电源引线较近)的像素单元的接收到的电源电压会大于显示面板远端(距离供电电路较远)的像素单元的接收到的电源电压，这会导致显示面板显示亮度不均匀。因此，需要对OLED显示面板中的电阻压降进行补偿，以解决显示面板显示亮度不均匀的问题。
本公开的实施例提供一种显示面板及显示设备，可对显示面板中电源线上的电阻压降进行补偿，进而减小或消除显示面板因电阻压降造成的显示亮度不均匀的问题。
第一实施例
本公开的实施例提供一种显示面板100，如图1所示，该显示面板100包括：第一电源端子110，设置于显示面板100的第一侧边101；第二电源端子120，设置于显示面板100的第二侧边102；以及电源线130，被配置为传输电源电压VDD。第一侧边101与第二侧边102相对设置，第一电源端子110和第二电源端子120一一对应，第一电源端子110与第二电源端子120用于向所述电源线130提供相等的电源电压VDD。
例如，对于矩形的显示面板，第一侧边和第二侧边可以是相对设置的上下两个侧边或左右两个侧边。
例如，本公开实施例提供的显示面板100，电源线130的第一端与第一电源端子110电连接，电源线130的第二端与第二电源端子120电连接。
例如，在本公开实施例提供的显示面板100中，电源线130垂直于第一侧边101和/或第二侧边102设置。
例如，本公开实施例提供的显示面板100，还包括阵列排布的多个子像素140，子像素140与电源线130电连接以接收电源电压VDD。
例如，如图2所示，在本公开实施例提供的显示面板100中，子像素140包括有机发光二极管OLED及用于驱动有机发光二极管OLED发光的驱动电路141，电源线130与驱动电路141电连接以向驱动电路141提供电源电压VDD。
例如，电源线130也可以与有机发光二极管OLED的阴极连接以向有机发光二极管OLED提供阴极电源电压VSS。也就是说，本公开实施例提供的显示面板中的第一电源端子和第二电源端子提供的电源电压不局限于电源电 压VDD，也可以是其它受到电阻压降影响的电压，例如有机发光二极管OLED的阴极电源电压VSS或其它用于驱动电路的参考电压。
例如，如图1所示，本公开实施例提供的显示面板100还包括：交叉设置的多条数据线和多条扫描信号线(图中未示出)；数据驱动器150；以及扫描信号驱动器160，数据驱动器150被配置为通过数据线向驱动电路141提供有机发光二极管OLED的发光数据，以使有机发光二极管OLED在工作时发光；扫描信号驱动器160被配置为通过扫描信号线向驱动电路141提供扫描控制信号。
例如，本公开实施例提供的显示面板100，还包括中转电源端子170以及中转连接线121，中转电源端子170设置于显示面板100的第一侧边101，中转电源端子170与第二电源端子120通过中转连接线121电连接。
例如，中转连接线121可以采用图案化工艺与电源线130同层形成在显示面板100上；或者，中转连接线121也可以通过外接柔性电路板或外接引线与中转电源端子及第二电源端子电连接。
例如，在本公开实施例提供的显示面板100中，中转电源端子170用于提供中转电压VC，中转电压VC等于电源电压VDD与中转连接线121上的中转压降VDC之和，也就是说，由于中转连接线121上存在中转压降VDC，要使第二电源端子120能提供和第一电源端子110相等的电源电压VDD，中转电源端子170要提供的中转电压满足VC＝VDD+VDC。
例如，本公开实施例提供的显示面板100，还包括第一电源引线111、第二电源引线171，第一电源引线111的第一端与第一电源端子110电连接，第二电源引线171的第一端与中转电源端子170电连接。
例如，第一电源引线111和第二电源引线171可以设置在柔性电路板上。
例如，本公开实施例提供的显示面板100，还包括第一供电电路180，第一供电电路180包括第一供电端子181和第二供电端子182，第一供电端子181用于提供第一供电电压VS1，第二供电端子182用于提供第二供电电压VS2，第一供电端子181与第一电源引线111的第二端电连接，第二供电端子182与第二电源引线171的第二端电连接。也就是说，第一供电电路180通过第一供电端子181和第一电源引线111向第一电源端子110供电，使第一电源端子110的电压为电源电压VDD；第一供电电路180通过第二供电端 子182和第二电源引线171向中转电源端子170提供中转电压VC。
例如，第一供电电路可以采用供电电源芯片实现。
例如，在本公开实施例提供的显示面板100中，第一供电电压VS1等于电源电压VDD与第一电源引线111上的第一引线压降VD1之和，第二供电电压VS2等于中转电压VC与第二电源引线171上的第二引线压降VD2之和。也就是说，由于第一电源引线111上存在第一引线压降VD1，要使第一电源端子110的电压为电源电压VDD，第一供电端子181需要提供的第一供电电压满足VS1＝VDD+VD1；由于第二电源引线171上存在第二引线压降VD2，要使中转电源端子170的电压为中转电压VC，第二供电端子182需要提供的第二供电电压满足VS2＝VC+VD2。
例如，第一供电电压VS1和第二供电电压VS2也可以通过实验的方式获得。例如，同时测量第一电源端子110和第二电源端子120的电压值，通过调整第一供电电路180的第一供电电压VS1和第二供电电压VS2，使第一电源端子110和第二电源端子120的电压值均为电源电压VDD即可。例如，如图3所示，本公开实施例还提供一种显示面板100，该显示面板100包括：第一电源端子110，设置于显示面板100的第一侧边101；第二电源端子120，设置于显示面板100的第二侧边102。第一侧边101与第二侧边102相对设置，第一电源端子110和第二电源端子120一一对应，第一电源端子110与第二电源端子120用于提供相等的电源电压VDD。
例如，第一电源端子110和第二电源端子120可以为条状电源端子，一一对应的一个第一电源端子110和一个第二电源端子120可以与多条电源线130电连接以向多条电源线130提供电源电压。
例如，本公开实施例提供的显示面板100可以包括多个第一电源端子110、多个第二电源端子120以及多条电源线130。例如，每条电源线可以对应一个第一电源端子110和一个第二电源端子120，每条电源线被配置为向一行或一列子像素提供电源电压。
例如，显示面板100可以包括多条第一电源引线和/或多条第二电源引线。
例如，一个中转电源端子170可以和多个第二电源端子120电连接，并通过多条中转连接线121向多个第二电源端子120提供电源电压。
例如，显示面板100也可以包括多个供电电路，多个供电电路通过相应 的电源引线分别向第一电源端子和中转电源端子供电。
例如，本公开的实施例包括但不局限于上述的实施方式，各个端子、电源线、连接线以及引线的设置方式及数量可以根据实际情况灵活选择。
第二实施例
本公开的实施例提供一种显示面板100，如图3所示，该显示面板100包括：第一电源端子110，设置于显示面板100的第一侧边101；第二电源端子120，设置于显示面板100的第二侧边102；以及电源线130，被配置为传输电源电压VDD。第一侧边101与第二侧边102相对设置，第一电源端子110和第二电源端子120一一对应，第一电源端子110与第二电源端子120用于向所述电源线130提供相等的电源电压VDD。
例如，对于矩形的显示面板，第一侧边和第二侧边可以是相对设置的上下两个侧边或左右两个侧边。
例如，本公开实施例提供的显示面板100，电源线130的第一端与第一电源端子110电连接，电源线130的第二端与第二电源端子120电连接。
例如，在本公开实施例提供的显示面板100中，电源线130垂直于第一侧边101和/或第二侧边102设置。
例如，本公开实施例提供的显示面板100，还包括阵列排布的多个子像素140，子像素140与电源线130电连接以接收电源电压VDD。
例如，如图2所示，在本公开实施例提供的显示面板100中，子像素140包括有机发光二极管OLED及用于驱动有机发光二极管OLED发光的驱动电路141，电源线130与驱动电路141电连接以向驱动电路141提供电源电压VDD。
例如，电源线130也可以与有机发光二极管OLED的阴极连接以向有机发光二极管OLED提供阴极电源电压VSS。也就是说，本公开实施例提供的显示面板中的第一电源端子和第二电源端子提供的电源电压不局限于电源电压VDD，也可以是其它受到电阻压降影响的电压，例如有机发光二极管OLED的阴极电源电压VSS或其它用于驱动电路的参考电压。
例如，如图3所示，本公开实施例提供的显示面板100还包括：交叉设置的多条数据线和多条扫描信号线(图中未示出)；数据驱动器150；以及扫描信号驱动器160，数据驱动器150被配置为通过数据线向驱动电路141 提供有机发光二极管OLED的发光数据，以使有机发光二极管OLED在工作时发光；扫描信号驱动器160被配置为通过扫描信号线向驱动电路141提供扫描控制信号。
例如，本公开实施例提供的显示面板100，还包括第三电源引线191和第四电源引线192。第三电源引线191的第一端与第一电源端子110电连接，第四电源引线192的第一端与第二电源端子120电连接。
例如，第三电源引线191和第四电源引线192可以设置在柔性电路板上。
例如，本公开实施例提供的显示面板100，还包括第二供电电路190，第二供电电路190包括第三供电端子193和第四供电端子194，第三供电端子193用于提供第三供电电压VS3，第四供电端子194用于提供第四供电电压VS4，第三供电端子193与第三电源引线191的第二端电连接，第四供电端子194与第四电源引线192的第二端电连接。
例如，第二供电电路可以采用供电电源芯片实现。
例如，在本公开实施例提供的显示面板100中，第三供电电压VS3等于电源电压VDD与第三电源引线191上的第三引线压降VD3之和，第四供电电压VS4等于电源电压VDD与第四电源引线192上的第四引线压降VD4之和。也就是说，由于第三电源引线191上存在第三引线压降VD3，要使第一电源端子110的电压为电源电压VDD，第三供电端子193需要提供的第三供电电压满足VS3＝VDD+VD3；由于第四电源引线192上存在第四引线压降VD4，要使第二电源端子120的电压为电源电压VDD，第四供电端子194需要提供的第四供电电压满足VS4＝VDD+VD4。
例如，第三供电电压VS3和第四供电电压VS4也可以通过实验的方式获得。例如，同时测量第一电源端子110和第二电源端子120的电压值，通过调整第二供电电路190的第三供电电压VS3和第四供电电压VS4，使第一电源端子110和第二电源端子120的电压值均为电源电压VDD即可。
例如，第一电源端子110和第二电源端子120可以为条状电源端子，一一对应的一个第一电源端子110和一个第二电源端子120可以与多条电源线130电连接以向多条电源线130提供电源电压。
例如，本公开实施例提供的显示面板100可以包括多个第一电源端子110、多个第二电源端子120以及多条电源线130。例如，每条电源线可以对应一 个第一电源端子110和一个第二电源端子120，每条电源线被配置为向一行或一列子像素提供电源电压。
例如，显示面板100可以包括多条第三电源引线和/或多条第四电源引线。
例如，显示面板100也可以包括多个供电电路，多个供电电路通过相应的电源引线分别向第一电源端子和第二电源端子供电。
例如，本公开的实施例包括但不局限于上述的实施方式，各个端子、电源线、连接线以及引线的设置方式及数量可以根据实际情况灵活选择。
第三实施例
本公开的实施例还提供一种显示设备10，如图4所示，该显示设备10包括本公开任一实施例提供的显示面板100。
例如，本公开实施例提供的显示设备可以包括手机、平板电脑、电视机、显示器、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。
本公开的实施例提供一种显示面板及显示设备，可对显示面板中电源线上的电阻压降进行补偿，进而减小或消除显示面板因电阻压降造成的显示亮度不均匀的问题。
以上所述仅是本发明的示范性实施方式，而非用于限制本发明的保护范围，本发明的保护范围由所附的权利要求确定。
本申请要求于2016年10月21日递交的中国专利申请第201610921692.2号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。

Claims (15)

  1. 一种显示面板，包括：
    第一电源端子，设置于所述显示面板的第一侧边；
    第二电源端子，设置于所述显示面板的第二侧边；以及
    电源线，被配置为传输电源电压，其中，
    所述第一侧边与所述第二侧边相对设置，所述第一电源端子和所述第二电源端子一一对应，所述第一电源端子与所述第二电源端子用于向所述电源线提供相等的所述电源电压。
  2. 根据权利要求1所述的显示面板，其中，所述电源线的第一端与所述第一电源端子电连接，所述电源线的第二端与所述第二电源端子电连接。
  3. 根据权利要求1或2所述的显示面板，其中，所述电源线被设置为垂直于所述第一侧边和所述第二侧边中至少之一。
  4. 根据权利要求1-3任一项所述的显示面板，还包括阵列排布的多个子像素，其中，所述子像素与所述电源线电连接以接收所述电源电压。
  5. 根据权利要求4所述的显示面板，其中，所述子像素包括有机发光二极管及用于驱动所述有机发光二极管发光的驱动电路，所述电源线与所述驱动电路电连接以向所述驱动电路提供所述电源电压。
  6. 根据权利要求5所述的显示面板，还包括：
    交叉设置的多条数据线和多条扫描信号线；
    数据驱动器；以及
    扫描信号驱动器，其中，
    所述数据驱动器被配置为通过所述数据线向所述驱动电路提供所述有机发光二极管的发光数据，以使所述有机发光二极管在工作时发光；
    所述扫描信号驱动器被配置为通过所述扫描信号线向所述驱动电路提供扫描控制信号。
  7. 根据权利要求1-6任一项所述的显示面板，还包括中转电源端子以及中转连接线，其中，所述中转电源端子设置于所述显示面板的第一侧边，所述中转电源端子与所述第二电源端子通过所述中转连接线电连接。
  8. 根据权利要求7所述的显示面板，其中，所述中转电源端子用于提供 中转电压，所述中转电压等于所述电源电压与所述中转连接线上的中转压降之和。
  9. 根据权利要求8所述的显示面板，还包括第一电源引线、第二电源引线，其中，所述第一电源引线的第一端与所述第一电源端子电连接，所述第二电源引线的第一端与所述中转电源端子电连接。
  10. 根据权利要求9所述的显示面板，还包括第一供电电路，其中，所述第一供电电路包括第一供电端子和第二供电端子，所述第一供电端子用于提供第一供电电压，所述第二供电端子用于提供第二供电电压，所述第一供电端子与所述第一电源引线的第二端电连接，所述第二供电端子与所述第二电源引线的第二端电连接。
  11. 根据权利要求10所述的显示面板，其中，所述第一供电电压等于所述电源电压与所述第一电源引线上的第一引线压降之和，所述第二供电电压等于所述中转电压与所述第二电源引线上的第二引线压降之和。
  12. 根据权利要求1-11任一项所述的显示面板，还包括第三电源引线和第四电源引线，其中，所述第三电源引线的第一端与所述第一电源端子电连接，所述第四电源引线的第一端与所述第二电源端子电连接。
  13. 根据权利要求12所述的显示面板，还包括第二供电电路，其中，所述第二供电电路包括第三供电端子和第四供电端子，所述第三供电端子用于提供第三供电电压，所述第四供电端子用于提供第四供电电压，所述第三供电端子与所述第三电源引线的第二端电连接，所述第四供电端子与所述第四电源引线的第二端电连接。
  14. 根据权利要求13所述的显示面板，其中，所述第三供电电压等于所述电源电压与所述第三电源引线上的第三引线压降之和，所述第四供电电压等于所述电源电压与所述第四电源引线上的第四引线压降之和。
  15. 一种显示设备，包括如权利要求1-14任一项所述的显示面板。
PCT/CN2017/083123 2016-10-21 2017-05-05 显示面板及显示设备 WO2018072429A1 (zh)

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