WO2022067932A1 - 分区显示结构、显示面板、有机发光二极管显示面板 - Google Patents

分区显示结构、显示面板、有机发光二极管显示面板 Download PDF

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Publication number
WO2022067932A1
WO2022067932A1 PCT/CN2020/124503 CN2020124503W WO2022067932A1 WO 2022067932 A1 WO2022067932 A1 WO 2022067932A1 CN 2020124503 W CN2020124503 W CN 2020124503W WO 2022067932 A1 WO2022067932 A1 WO 2022067932A1
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Prior art keywords
voltage
light
switches
switch
state
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PCT/CN2020/124503
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English (en)
French (fr)
Inventor
李艳
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TCL China Star Optoelectronics Technology Co Ltd
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TCL China Star Optoelectronics Technology Co Ltd
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Priority to US16/972,038 priority Critical patent/US11984073B2/en
Publication of WO2022067932A1 publication Critical patent/WO2022067932A1/zh
Anticipated expiration legal-status Critical
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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
    • 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

  • the present invention relates to the field of display technology, and in particular, to a partitioned display structure, a display panel, and an organic light emitting diode display panel.
  • the input voltage source transmits the input signal to the DC voltage electrodes on the entire surface of the display panel
  • the voltage of the input signal will decrease with the increase of the transmission distance, resulting in the voltage received by the light-emitting unit powered by the DC voltage electrode.
  • the voltage is different, which affects the performance of the display panel in terms of brightness uniformity. Since the display structure (including the entire surface of the DC voltage electrode) in the existing display panel adjusts the brightness of the entire surface, the display The brightness of the picture cannot be adjusted in more detail, so it can be seen that the existing display structure can no longer meet the requirements of the market for the fineness of the picture. Therefore, it is necessary to provide a partitioned display structure, a display panel, and an organic light emitting diode display panel to solve the problems existing in the prior art.
  • the purpose of the present invention is to provide a partitioned display structure, a display panel, and an organic light emitting diode display panel to solve the problems existing in the prior art.
  • a partition display structure including:
  • a plurality of switches each of which is connected between two adjacent DC voltage electrodes to control whether the two adjacent DC voltage electrodes are connected to each other.
  • the plurality of switches are in an on state, the plurality of The DC voltage electrodes are mutually conductive, and when the plurality of switches are in an off state, the plurality of DC voltage electrodes are insulated from each other.
  • each DC voltage electrode when the plurality of switches are in the on state, the light-emitting unit on each DC voltage electrode emits light according to the same input signal, and when the plurality of switches are in the off state, each DC voltage electrode emits light for display.
  • the light-emitting unit on the light-emitting unit emits light for display according to the input signal input by the input voltage source connected to it.
  • each switch is a thin film transistor, its source terminal and drain terminal are respectively connected between two adjacent DC voltage electrodes, and its gate terminal receives an enable signal, and the enable signal is used to control the opening and closing of each switch. closure.
  • the enable signal when the enable signal is a high-level signal, the plurality of switches are in the on state, and when the enable signal is a low-level signal, the plurality of switches are in the off state.
  • the picture output when the input voltage is the second voltage has a brighter brightness than the picture output when the input voltage is the first voltage, wherein the value of the second voltage is greater than the value of the first voltage .
  • each light-emitting unit includes:
  • a light-emitting component the first end of which is connected to the DC voltage electrode correspondingly connected to it;
  • a first switch the first end of which is connected to the second end of the light-emitting component, and the third end is grounded;
  • a second switch the first end of which is connected to the data line, the second end is connected to the scan line, and the third end is connected to the second end of the first switch;
  • the first end of the storage capacitor is connected to the second end of the first switch and the third end of the second switch, and the second end is grounded.
  • the light-emitting component is an organic light-emitting diode.
  • first switch and the second switch are thin film transistors.
  • a second aspect of the present invention provides a display panel, which includes a partitioned display structure, and the partitioned display structure includes:
  • a plurality of switches each of which is connected between two adjacent DC voltage electrodes to control whether the two adjacent DC voltage electrodes are connected to each other.
  • the plurality of switches are in an on state, the plurality of The DC voltage electrodes are mutually conductive, and when the plurality of switches are in an off state, the plurality of DC voltage electrodes are insulated from each other.
  • each DC voltage electrode when the plurality of switches are in the on state, the light-emitting unit on each DC voltage electrode emits light according to the same input signal, and when the plurality of switches are in the off state, each DC voltage electrode emits light for display.
  • the light-emitting unit on the light-emitting unit emits light for display according to the input signal input by the input voltage source connected to it.
  • each switch is a thin film transistor, its source terminal and drain terminal are respectively connected between two adjacent DC voltage electrodes, and its gate terminal receives an enable signal, and the enable signal is used to control the opening and closing of each switch. closure.
  • the enable signal when the enable signal is a high-level signal, the plurality of switches are in the on state, and when the enable signal is a low-level signal, the plurality of switches are in the off state.
  • the picture output when the input voltage is the second voltage has a brighter brightness than the picture output when the input voltage is the first voltage, wherein the value of the second voltage is greater than the value of the first voltage .
  • each light-emitting unit includes:
  • a light-emitting component the first end of which is connected to the DC voltage electrode correspondingly connected to it;
  • a first switch the first end of which is connected to the second end of the light-emitting component, and the third end is grounded;
  • a second switch the first end of which is connected to the data line, the second end is connected to the scan line, and the third end is connected to the second end of the first switch;
  • the first end of the storage capacitor is connected to the second end of the first switch and the third end of the second switch, and the second end is grounded.
  • the light-emitting component is an organic light-emitting diode.
  • first switch and the second switch are thin film transistors.
  • a third aspect of the present invention provides an organic light emitting diode display panel, which includes a partitioned display structure, and the partitioned display structure includes:
  • a plurality of switches each of which is connected between two adjacent DC voltage electrodes to control whether the two adjacent DC voltage electrodes are connected to each other.
  • the plurality of switches are in an on state, the plurality of The DC voltage electrodes are mutually conductive, and when the plurality of switches are in an off state, the plurality of DC voltage electrodes are insulated from each other.
  • each DC voltage electrode when the plurality of switches are in the on state, the light-emitting unit on each DC voltage electrode emits light according to the same input signal, and when the plurality of switches are in the off state, each DC voltage electrode emits light for display.
  • the light-emitting unit on the light-emitting unit emits light for display according to the input signal input by the input voltage source connected to it.
  • each switch is a thin film transistor, its source terminal and drain terminal are respectively connected between two adjacent DC voltage electrodes, and its gate terminal receives an enable signal, and the enable signal is used to control the opening and closing of each switch. closure.
  • the picture output when the input voltage is the second voltage has a brighter brightness than the picture output when the input voltage is the first voltage, wherein the value of the second voltage is greater than the value of the first voltage .
  • each input voltage source is connected to a plurality of DC voltage electrodes with a small area in a one-to-one correspondence, and the plurality of switches are arranged between the plurality of DC voltage electrodes, so that when When the plurality of switches are in the on state, since each DC voltage electrode receives the same input signal, and because the voltage of the input signal is not easy to decrease with the increase of the transmission distance, the plurality of DC voltage electrodes are When the electrodes are turned on, the voltages of the input signals on the electrodes with different DC voltages can tend to be consistent, so that the voltages of the input signals received by each light-emitting unit are further the same, and each light-emitting component can have the same brightness. The problem of uneven brightness of the display panel.
  • each input voltage source can independently control the light-emitting brightness of the light-emitting components on different DC voltage electrodes, adjust the local brightness, and realize the display compared with the existing ones. Structure has a higher contrast picture.
  • FIG. 1 is a schematic diagram of a partition display structure provided according to an embodiment of the present invention.
  • FIG. 2 is a schematic circuit diagram of a light emitting unit provided according to an embodiment of the present invention.
  • FIG. 3A is a timing diagram of an operation zone display structure when a plurality of switches are in an on state according to an embodiment of the present invention.
  • FIG. 3B is a timing diagram of an operation zone display structure when a plurality of switches are in an off state according to an embodiment of the present invention.
  • FIG. 1 is a schematic diagram of a partition display structure according to an embodiment of the present invention.
  • the partitioned display structure is applied to a display panel or a display device including the display panel, for example, an organic light emitting diode display panel or device.
  • the partition display structure includes a plurality of DC voltage electrodes 10 , a plurality of input voltage sources Vs1 to Vs6 , and a plurality of switches 20 .
  • FIG. 1 uses 6 DC voltage electrodes 10, 6 input voltage sources Vs1-Vs6, and 18 switches 20 for illustration, but this is only for the convenience of explaining the present invention, and each component is set quantity, which should not be construed as a limitation of the invention.
  • each input voltage source Vs1/Vs2/Vs3/Vs4/Vs5/Vs6 can also be a voltage input contact, and is not limited to an independent power supply device.
  • a plurality of light-emitting units 11 are connected to each DC voltage electrode 10; , used to transmit input signals (Vs in FIG. 2 ) to the plurality of light-emitting units 11 for light-emitting display; each switch 20 is connected between two adjacent DC voltage electrodes 10 , and the plurality of switches 10 use In order to control whether the plurality of electrodes 10 are connected to each other, that is, when the plurality of switches 20 are in the on state, the plurality of DC voltage electrodes 10 are connected to each other, and when the plurality of switches 20 are in the on state In the off state, the plurality of DC voltage electrodes 10 are insulated from each other (described in detail later). It should be noted that, in FIG. 1 , four light-emitting units 11 are connected to each DC voltage electrode 10 for illustration, but this is only the number set for the convenience of explaining the present invention, and should not be interpreted as Limitations of the present invention.
  • each switch 20 is a thin film transistor (thin film transistor).
  • transistor, TFT thin film transistor
  • its source terminal and drain terminal are respectively connected between two adjacent DC voltage electrodes 10, and its gate terminal receives an enable signal EN, the enable signal EN is used to control the opening and closing of each switch 20 .
  • the enable signal EN is a high-level signal
  • the switches 20 are in an on state, and the DC voltage electrodes 10 are connected to each other through the switches 20;
  • the enable When the signal EN is a low level signal the switches 20 are in an off state, and the DC voltage electrodes 10 are insulated from each other.
  • FIG. 2 is a schematic circuit diagram of the light emitting unit 11 provided according to an embodiment of the present invention. Further, each light-emitting unit 11 includes a light-emitting component M, a first switch T1, a second switch T2, and a storage capacitor Cs.
  • the first end of the light-emitting component M is connected to the correspondingly connected DC voltage electrode 10 for receiving the input signal Vs transmitted by it to emit light for display, and the second end is connected to the first end of the first switch T1;
  • the first end of the first switch T1 is connected to the second end of the light-emitting component M, the second end is connected to the third end of the second switch T2 and the first end of the storage capacitor, and the third end is grounded ;
  • the first end of the second switch T2 is connected to the data line DATA, the second end is connected to the scan line SCAN, and the third end is connected to the second end of the first switch T1 and the first end of the storage capacitor Cs ;
  • the first end of the storage capacitor Cs is connected to the second end of the first switch T1 and the third end of the second switch T2, and the second end is grounded.
  • the light-emitting component M is an organic light-emitting diode, and the first switch T1 and the second switch T2 are both thin film
  • FIG. 3A is a timing diagram of operating the partition display structure when multiple switches 20 are in an on state according to an embodiment of the present invention
  • FIG. 3B is a plurality of switches provided according to an embodiment of the present invention. 20 Timing diagram for operating the partition display structure when it is off.
  • each light-emitting unit 11 if a data signal D is input to the first end of the second switch T2, and the second end of the second switch T2 receives the scan signal S during the period when the data signal D is input, Then both the first switch T1 and the second switch T2 will be turned on, and since the storage capacitor Cs can continuously provide an electrical signal to the second end of the second switch T2, the second switch T2 Can be always on.
  • the first end connected to the light-emitting component M receives the input signal Vs transmitted by the corresponding input voltage source Vs1/Vs2/Vs3/Vs4/Vs5/Vs6, the first end of the light-emitting component M is high potential, the second terminal is at a low potential (grounded), so the light-emitting component M can form a forward bias to emit light for display.
  • each input voltage source Vs1/Vs2/Vs3/Vs4/Vs5/Vs6 When each input voltage source Vs1/Vs2/Vs3/Vs4/Vs5/Vs6 outputs the same input signal Vs, the light emitting unit 11 on each DC voltage electrode 10 emits light and displays according to the same input signal. Since each input voltage source Vs1/Vs2/Vs3/Vs4/Vs5/Vs6 only needs to transmit the input signal Vs to the DC voltage electrodes 10 which are divided into a plurality and have a small area, the voltage of the input signal Vs is not easy to follow As the transmission distance increases and decreases, the voltage received by the light-emitting unit 11 on each DC voltage electrode 10 is the same as the voltage of the input signal Vs transmitted by each input voltage source Vs1/Vs2/Vs3/Vs4/Vs5/Vs6, Further, each light-emitting component M can have the same brightness, thereby improving the problem of uneven brightness of the display panel.
  • each of the input voltage sources Vs1/Vs2/Vs3/Vs4/Vs5/Vs6 outputs the same input signal Vs
  • the plurality of switches 20 are in an on state (that is, the The enable signal EN is a high level signal)
  • the plurality of DC voltage electrodes 10 are connected to each other through the plurality of switches 20, and the input signals (ie voltage signals) on different DC voltage electrodes 10 are mutually connected
  • the voltages of the input signals Vs received by each light-emitting unit 11 are further the same.
  • each light-emitting component M can have the same light-emitting brightness, so that the brightness uniformity of the display panel is further improved, and the performance of the display panel in terms of picture fineness is improved.
  • the DC voltage electrodes 10 are insulated from each other.
  • Different input signals Vs are input to the light-emitting units 11 on the different DC voltage electrodes 10, so as to independently control the light-emitting brightness of the light-emitting components M on the different DC voltage electrodes 10, that is, the light-emitting units 11 on each DC voltage electrode 10.
  • the input signal Vs transmitted by the correspondingly connected input voltage source Vs1/Vs2/Vs3/Vs4/Vs5/Vs6 the light-emitting display is realized, and the brightness is locally adjusted, so as to obtain, for example, a high-contrast picture.
  • the display panel of the present invention can achieve higher contrast performance and meet the display requirements of high contrast images.
  • the second voltage V2 in FIG. 3B is greater than the first voltage V1.
  • the voltage magnitude of the input voltage Vs is that the second voltage V2 is suitable for displaying high grayscale or high brightness images
  • the voltage magnitude of the input voltage Vs is that the first voltage V1 is suitable for displaying low grayscale or low brightness images.
  • the input voltage Vs can be dynamically changed to be the first voltage V1, the second voltage V2 or other values to meet the display requirements of images with different grayscales or brightness, thereby achieving better display performance.
  • the present invention also provides a display panel (eg, an organic light emitting diode display panel), which includes the above-mentioned partitioned display structure, which will not be repeated here.
  • a display panel eg, an organic light emitting diode display panel
  • each input voltage source Vs1/Vs2/Vs3/Vs4/Vs5/Vs6 is connected in one-to-one correspondence with the DC voltage electrodes 10 divided into a plurality of small areas, and the plurality of DC voltage electrodes
  • the plurality of switches 20 are arranged between the poles 10, so that when the plurality of switches 20 are in an on state, since each DC voltage electrode 10 receives the same input signal Vs, and due to the difference of the input signal Vs
  • the voltage is not easy to decrease as the transmission distance increases, so that when the plurality of DC voltage electrodes 10 are turned on, the voltages of the input signals Vs on the different DC voltage electrodes 10 can tend to be consistent, so that each light-emitting unit
  • the magnitude of the voltage of the input signal Vs received by M is further the same, and each light-emitting component M can have the same brightness, which improves the problem of uneven brightness of the display panel.
  • each input voltage source Vs1/Vs2/Vs3/Vs4/Vs5/Vs6 can independently control the light-emitting brightness of the light-emitting components M on the different DC voltage electrodes 10, so that the The local brightness is adjusted to achieve a higher contrast picture than the existing display structure.

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

Abstract

一种分区显示结构，包括：多个直流电压电极，每个直流电压电极连接多个发光单元；多个输入电压源，每个输入电压源与每个直流电压电极一对一对应连接，用以向所述多个发光单元传送输入信号来发光显示；以及多个开关，每个开关连接于相邻两直流电压电极之间，用以控制相邻两直流电压电极之间是否相互导通，所述多个开关处于开启状态时，所述多个直流电压电极彼此相互导通，所述多个开关处于关闭状态时，所述多个直流电压电极彼此相互绝缘。

Description

分区显示结构、显示面板、有机发光二极管显示面板 技术领域
本发明涉及显示技术领域，尤其涉及一种分区显示结构、显示面板、以及有机发光二极管显示面板。
 背景技术
随着显示技术的发展，用户对显示画面细腻度的要求逐步提高。当输入电压源向显示面板整面的直流电压电极传送输入信号时，所述输入信号的电压会随着传送距离增加而递减，造成通过所述直流电压电极供电的发光单元所接收到的电压有所差异，影响显示面板于亮度均匀上的表现，并且由于现有显示面板中的显示结构（包括所述整面的直流电压电极）都是整面性地对亮度进行调整，使得显示画面的亮度无法做更细部的调整，可见现有的显示结构已无法满足市场对画面细腻度的要求。因此，有必要提供一种分区显示结构、显示面板、以及有机发光二极管显示面板，以解决现有技术存在的问题。
 技术问题
本发明的目的在于提供一种分区显示结构、显示面板、以及有机发光二极管显示面板，以解决现有技术存在的问题。
 技术解决方案
为实现上述目的，本发明第一方面提供一种分区显示结构，包括：
多个直流电压电极，每个直流电压电极连接多个发光单元；
多个输入电压源，每个输入电压源与每个直流电压电极一对一对应连接，用以向所述多个发光单元传送输入信号来发光显示；以及
多个开关，每个开关连接于相邻两直流电压电极之间，用以控制相邻两直流电压电极之间是否相互导通，所述多个开关处于开启状态时，所述多个直流电压电极彼此相互导通，所述多个开关处于关闭状态时，所述多个直流电压电极彼此相互绝缘。
进一步地，所述多个开关处于所述开启状态时，每个直流电压电极上的发光单元根据相同输入信号发光显示，所述多个开关处于所述关闭状态时，每个直流电压电极上的发光单元根据与其对应连接的输入电压源输入的输入信号发光显示。
进一步地，每个开关为薄膜晶体管，其源极端与漏极端分别连接于相邻两直流电压电极之间，其栅极端接收使能信号，所述能信号用以控制每个开关的开启与关闭。
进一步地，所述使能信号为高电平信号时，所述多个开关处于所述开启状态，所述使能信号为低电平信号时，所述多个开关处于所述关闭状态。
进一步地，所述输入电压为第二电压时所输出的画面具有比所述输入电压为第一电压时所输出的画面亮度亮，其中所述第二电压的值大于所述第一电压的值。
进一步地，每个发光单元包括：
发光部件，其第一端和与其对应连接的直流电压电极连接；
第一开关，其第一端与所述发光部件的第二端连接，第三端接地；
第二开关，其第一端与数据线连接，第二端与扫描线连接，第三端与所述第一开关的第二端连接；以及
存储电容，其第一端与所述第一开关的第二端以及所述第二开关的第三端连接，第二端接地。
进一步地，所述发光部件为有机发光二极管。
进一步地，所述第一开关与所述第二开关为薄膜晶体管。
本发明第二方面提供一种显示面板，其中，包括分区显示结构，并且所述分区显示结构包括：
多个直流电压电极，每个直流电压电极连接多个发光单元；
多个输入电压源，每个输入电压源与每个直流电压电极一对一对应连接，用以向所述多个发光单元传送输入信号来发光显示；以及
多个开关，每个开关连接于相邻两直流电压电极之间，用以控制相邻两直流电压电极之间是否相互导通，所述多个开关处于开启状态时，所述多个直流电压电极彼此相互导通，所述多个开关处于关闭状态时，所述多个直流电压电极彼此相互绝缘。
进一步地，所述多个开关处于所述开启状态时，每个直流电压电极上的发光单元根据相同输入信号发光显示，所述多个开关处于所述关闭状态时，每个直流电压电极上的发光单元根据与其对应连接的输入电压源输入的输入信号发光显示。
进一步地，每个开关为薄膜晶体管，其源极端与漏极端分别连接于相邻两直流电压电极之间，其栅极端接收使能信号，所述能信号用以控制每个开关的开启与关闭。
进一步地，所述使能信号为高电平信号时，所述多个开关处于所述开启状态，所述使能信号为低电平信号时，所述多个开关处于所述关闭状态。
进一步地，所述输入电压为第二电压时所输出的画面具有比所述输入电压为第一电压时所输出的画面亮度亮，其中所述第二电压的值大于所述第一电压的值。
进一步地，每个发光单元包括：
发光部件，其第一端和与其对应连接的直流电压电极连接；
第一开关，其第一端与所述发光部件的第二端连接，第三端接地；
第二开关，其第一端与数据线连接，第二端与扫描线连接，第三端与所述第一开关的第二端连接；以及
存储电容，其第一端与所述第一开关的第二端以及所述第二开关的第三端连接，第二端接地。
进一步地，所述发光部件为有机发光二极管。
进一步地，所述第一开关与所述第二开关为薄膜晶体管。
本发明第三方面提供一种有机发光二极管显示面板，其中，包括分区显示结构，并且所述分区显示结构包括：
多个直流电压电极，每个直流电压电极连接多个发光单元；
多个输入电压源，每个输入电压源与每个直流电压电极一对一对应连接，用以向所述多个发光单元传送输入信号来发光显示；以及
多个开关，每个开关连接于相邻两直流电压电极之间，用以控制相邻两直流电压电极之间是否相互导通，所述多个开关处于开启状态时，所述多个直流电压电极彼此相互导通，所述多个开关处于关闭状态时，所述多个直流电压电极彼此相互绝缘。
进一步地，所述多个开关处于所述开启状态时，每个直流电压电极上的发光单元根据相同输入信号发光显示，所述多个开关处于所述关闭状态时，每个直流电压电极上的发光单元根据与其对应连接的输入电压源输入的输入信号发光显示。
进一步地，每个开关为薄膜晶体管，其源极端与漏极端分别连接于相邻两直流电压电极之间，其栅极端接收使能信号，所述能信号用以控制每个开关的开启与关闭。
进一步地，所述输入电压为第二电压时所输出的画面具有比所述输入电压为第一电压时所输出的画面亮度亮，其中所述第二电压的值大于所述第一电压的值。
 有益效果
本发明通过将每个输入电压源与划分成多个且具有小面积的直流电压电极一对一对应连接，并在所述多个直流电压电极之间设置所述多个开关，使得当所述多个开关处于开启状态时，由于每个直流电压电极接收到相同的输入信号，并且由于所输入的输入信号的电压不易随着传送距离增加而递减，从而在所述多个直流电压电极导通的情况下，不同直流电压电极上的输入信号的电压能够趋于一致，使得每个发光单元接收到输入信号的电压大小进一步相同，每个发光部件能够具有相同的亮度，改善显示面板亮度不均匀的问题。进一步地，当所述多个开关处于关闭状态时，每个输入电压源可以独立控制不同直流电压电极上的发光部件的发光亮度，对局部性亮度进行调整，实现相较于现有的显示结构具有更高对比度的画面。
 附图说明
图1为根据本发明实施例提供的分区显示结构的示意图。
图2为根据本发明实施例提供的发光单元的电路示意图。
图3A为根据本发明实施例提供的多个开关处于开启状态时操作分区显示结构的时序图。
图3B为根据本发明实施例提供的多个开关处于关闭状态时操作分区显示结构的时序图。
 本发明的最佳实施方式
为使本发明的目的、技术方案及效果更加清楚、明确，以下参照附图并对本发明作进一步地详细说明。应当理解，此处所描述的具体实施例仅用以解释本发明，并不用于限定本发明。
请参照图1，其为根据本发明实施例提供的分区显示结构的示意图。所述分区显示结构应用在显示面板或包括所述显示面板的显示装置上，例如应用于有机发光二极管显示面板或装置。所述分区显示结构包括多个直流电压电极10、多个输入电压源Vs1-Vs6、以及多个开关20。需要说明的是，图1以6个直流电压电极10、6个输入电压源Vs1-Vs6、以及18个开关20来作说明，但这仅是为方便说明本发明而对每种部件所设定的数量，不应将此解释为对本发明的限制。此外，每个输入电压源Vs1／Vs2／Vs3／Vs4／Vs5／Vs6也可以是电压输入接点，而不限于一个独立的电能供给器件。
在本实施例中，每个直流电压电极10上连接多个发光单元11；每个输入电压源Vs1／Vs2／Vs3／Vs4／Vs5／Vs6与每个直流电压电极10一对一对应连接，用以向所述多个发光单元11传送输入信号（如图2中的Vs）来发光显示；每个开关20连接于相邻两直流电压电极10之间，所述多个开关10用以控制所述多个电极10之间是否相互导通，即当所述多个开关20处于开启状态时，所述多个直流电压电极10彼此相互导通，当所述多个开关20处于关闭状态时，所述多个直流电压电极10彼此相互绝缘（于后续详细说明）。需要说明的是，图1以每个直流电压电极10连接有4个发光单元11来作说明，但这仅是为方便说明本发明而对其所设定的数量，不应将此解释为对本发明的限制。
进一步地，每个开关20均为薄膜晶体管（thin film transistor, TFT），其源极端与漏极端分别连接于相邻两直流电压电极10之间，其栅极端接收使能信号EN，所述能信号EN用以控制每个开关20的开启与关闭。当所述使能信号EN为高电平信号时，所述多个开关20处于开启状态，所述多个直流电压电极10通过所述多个开关20彼此相互导通；当所述使能信号EN为低电平信号时，所述多个开关20处于关闭状态，所述多个直流电压电极10彼此相互绝缘。
结合图1与图2所示，图2为根据本发明实施例提供的发光单元11的电路示意图。进一步地，每个发光单元11包括发光部件M、第一开关T1、第二开关T2、以及存储电容Cs。所述发光部件M的第一端连接与其对应连接的直流电压电极10，用以接收其所传送的输入信号Vs来发光显示，第二端连接所述第一开关T1的第一端；所述第一开关T1的第一端与所述发光部件M的第二端连接，第二端与所述第二开关T2的第三端以及所述存储电容的第一端连接，第三端接地；所述第二开关T2的第一端连接数据线DATA，第二端与扫描线SCAN连接，第三端与所述第一开关T1的第二端以及所述存储电容Cs的第一端连接；所述存储电容Cs的第一端与所述第一开关T1的第二端以及所述第二开关T2的第三端连接，第二端接地。优选地，所述发光部件M为有机发光二极管，所述第一开关T1与所述第二开关T2均为薄膜晶体管。
结合图1至图3A-3B所示，图3A为根据本发明实施例提供的多个开关20处于开启状态时操作分区显示结构的时序图，图3B为根据本发明实施例提供的多个开关20处于关闭状态时操作分区显示结构的时序图。
在每个发光单元11中若有数据信号D输入所述第二开关T2的第一端，并在所述数据信号D输入的期间所述第二开关T2的第二端接收到扫描信号S，则所述第一开关T1与所述第二开关T2均会被开启，并且由于所述存储电容Cs能够持续对所述第二开关T2的第二端提供电信号，因此所述第二开关T2可以为恒开启状态。当连接于所述发光部件M的第一端接收到由对应的输入电压源Vs1／Vs2／Vs3／Vs4／Vs5／Vs6所传送的输入信号Vs时，所述发光部件M的第一端为高电位，第二端为低电位（接地），因此所述发光部件M得以形成顺向偏压而发光显示。
在每个输入电压源Vs1／Vs2／Vs3／Vs4／Vs5／Vs6均输出相同的输入信号Vs的情况下，每个直流电压电极10上的发光单元11根据相同的输入信号来发光显示。由于每个输入电压源Vs1／Vs2／Vs3／Vs4／Vs5／Vs6仅需要分别对划分成多个且具有小面积的直流电压电极10传送输入信号Vs即可，使得输入信号Vs的电压不易随着传送距离增加而递减，每个直流电压电极10上的发光单元11接收到的电压与每个输入电压源Vs1／Vs2／Vs3／Vs4／Vs5／Vs6所传送的输入信号Vs的电压相同，进而使每个发光部件M能够具有相同的亮度，改善显示面板亮度不均匀的问题。
在每个输入电压源Vs1／Vs2／Vs3／Vs4／Vs5／Vs6均输出相同的输入信号Vs的情况下，进一步如图3A所示，当所述多个开关20处于开启状态时（即所述使能信号EN为高电平信号），所述多个直流电压电极10通过所述多个开关20彼此相互导通，此时不同直流电压电极10上的输入信号（即电压信号）相互连通而趋于一致，从而使得每个发光单元11接收到输入信号Vs的电压大小进一步相同。进而，每个发光部件M能够具有相同的发光亮度，使得显示面板的亮度均匀性进一步提升，提高显示面板于画面细腻度上的表现。
如图3B所示，当所述多个开关20处于关闭状态时（即所述使能信号EN为低电平信号），所述多个直流电压电极10彼此相互绝缘，此时可以藉由对不同直流电压电极10上的发光单元11输入不同的输入信号Vs，从而独立控制不同直流电压电极10上的发光部件M的发光亮度，即每个直流电压电极上10的发光单元11根据与其对应连接的输入电压源Vs1／Vs2／Vs3／Vs4／Vs5／Vs6所传送的输入信号Vs来发光显示，实现对亮度做局部性调整，从而获得例如高对比度的画面。相较于现有的显示结构，采用本发明的显示面板得以实现更高的对比度的表现，满足高对比画面的显示需求。
进一步地，当所述输入电压Vs的电压大小越高，则所能实现画面的亮度越高，例如图3B中的第二电压V2大于第一电压V1，当输入电压Vs的电压大小为所述第二电压V2时，可以实现较输入电压Vs的电压大小为所述第一电压V1时更高亮度的灰阶画面。输入电压Vs的电压大小为所述第二电压V2适用于高灰阶或高亮度画面的显示，输入电压Vs的电压大小为所述第一电压V1适用于低灰阶或低亮度画面的显示。可以动态改变输入电压Vs，使其电压大小为所述第一电压V1、所述第二电压V2或其他数值，以适应不同灰阶或亮度的画面的显示需求，从而达到更好的显示表现。
本发明还提供一种显示面板（例如有机发光二极管显示面板），其包括如上所述的分区显示结构，在此不加以赘述。
本发明通过将每个输入电压源Vs1／Vs2／Vs3／Vs4／Vs5／Vs6与划分成多个且具有小面积的直流电压电极10一对一对应连接，并在所述多个直流电压电极10之间设置所述多个开关20，使得当所述多个开关20处于开启状态时，由于每个直流电压电极10接收到相同的输入信号Vs，并且由于所输入的输入信号Vs的电压不易随着传送距离增加而递减，从而在所述多个直流电压电极10导通的情况下，不同直流电压电极10上的输入信号Vs的电压能够趋于一致，使得每个发光单元M接收到输入信号Vs的电压大小进一步相同，每个发光部件M能够具有相同的亮度，改善显示面板亮度不均匀的问题。进一步地，当所述多个开关20处于关闭状态时，每个输入电压源Vs1／Vs2／Vs3／Vs4／Vs5／Vs6可以独立控制不同直流电压电极10上的发光部件M的发光亮度，对局部性亮度进行调整，实现相较于现有的显示结构具有更高对比度的画面。
虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本申请的范围内，均可作各种更动与润饰，因此本申请的保护范围以权利要求界定的范围为准。

Claims (20)

  1. 一种分区显示结构，其中，包括：
    多个直流电压电极，每个直流电压电极连接多个发光单元；
    多个输入电压源，每个输入电压源与每个直流电压电极一对一对应连接，用以向所述多个发光单元传送输入信号来发光显示；以及
    多个开关，每个开关连接于相邻两直流电压电极之间，用以控制相邻两直流电压电极之间是否相互导通，所述多个开关处于开启状态时，所述多个直流电压电极彼此相互导通，所述多个开关处于关闭状态时，所述多个直流电压电极彼此相互绝缘。
  2. 根据权利要求1所述的分区显示结构，其中：所述多个开关处于所述开启状态时，每个直流电压电极上的发光单元根据相同输入信号发光显示，所述多个开关处于所述关闭状态时，每个直流电压电极上的发光单元根据与其对应连接的输入电压源输入的输入信号发光显示。
  3. 根据权利要求1所述的分区显示结构，其中：每个开关为薄膜晶体管，其源极端与漏极端分别连接于相邻两直流电压电极之间，其栅极端接收使能信号，所述能信号用以控制每个开关的开启与关闭。
  4. 根据权利要求3所述的分区显示结构，其中：所述使能信号为高电平信号时，所述多个开关处于所述开启状态，所述使能信号为低电平信号时，所述多个开关处于所述关闭状态。
  5. 根据权利要求1所述的分区显示结构，其中：所述输入电压为第二电压时所输出的画面具有比所述输入电压为第一电压时所输出的画面亮度亮，其中所述第二电压的值大于所述第一电压的值。
  6. 根据权利要求1所述的分区显示结构，其中，每个发光单元包括：
    发光部件，其第一端和与其对应连接的直流电压电极连接；
    第一开关，其第一端与所述发光部件的第二端连接，第三端接地；
    第二开关，其第一端与数据线连接，第二端与扫描线连接，第三端与所述第一开关的第二端连接；以及
    存储电容，其第一端与所述第一开关的第二端以及所述第二开关的第三端连接，第二端接地。
  7. 根据权利要求6所述的分区显示结构，其中：所述发光部件为有机发光二极管。
  8. 根据权利要求6所述的分区显示结构，其中：所述第一开关与所述第二开关为薄膜晶体管。
  9. 一种显示面板，其中，包括分区显示结构，并且所述分区显示结构包括：
    多个直流电压电极，每个直流电压电极连接多个发光单元；
    多个输入电压源，每个输入电压源与每个直流电压电极一对一对应连接，用以向所述多个发光单元传送输入信号来发光显示；以及
    多个开关，每个开关连接于相邻两直流电压电极之间，用以控制相邻两直流电压电极之间是否相互导通，所述多个开关处于开启状态时，所述多个直流电压电极彼此相互导通，所述多个开关处于关闭状态时，所述多个直流电压电极彼此相互绝缘。
  10. 根据权利要求9所述的显示面板，其中：所述多个开关处于所述开启状态时，每个直流电压电极上的发光单元根据相同输入信号发光显示，所述多个开关处于所述关闭状态时，每个直流电压电极上的发光单元根据与其对应连接的输入电压源输入的输入信号发光显示。
  11. 根据权利要求9所述的显示面板，其中：每个开关为薄膜晶体管，其源极端与漏极端分别连接于相邻两直流电压电极之间，其栅极端接收使能信号，所述能信号用以控制每个开关的开启与关闭。
  12. 根据权利要求11所述的显示面板，其中：所述使能信号为高电平信号时，所述多个开关处于所述开启状态，所述使能信号为低电平信号时，所述多个开关处于所述关闭状态。
  13. 根据权利要求9所述的显示面板，其中：所述输入电压为第二电压时所输出的画面具有比所述输入电压为第一电压时所输出的画面亮度亮，其中所述第二电压的值大于所述第一电压的值。
  14. 根据权利要求9所述的显示面板，其中，每个发光单元包括：
    发光部件，其第一端和与其对应连接的直流电压电极连接；
    第一开关，其第一端与所述发光部件的第二端连接，第三端接地；
    第二开关，其第一端与数据线连接，第二端与扫描线连接，第三端与所述第一开关的第二端连接；以及
    存储电容，其第一端与所述第一开关的第二端以及所述第二开关的第三端连接，第二端接地。
  15. 根据权利要求14所述的显示面板，其中：所述发光部件为有机发光二极管。
  16. 根据权利要求14所述的显示面板，其中：所述第一开关与所述第二开关为薄膜晶体管。
  17. 一种有机发光二极管显示面板，其中，包括分区显示结构，并且所述分区显示结构包括：
    多个直流电压电极，每个直流电压电极连接多个发光单元；
    多个输入电压源，每个输入电压源与每个直流电压电极一对一对应连接，用以向所述多个发光单元传送输入信号来发光显示；以及
    多个开关，每个开关连接于相邻两直流电压电极之间，用以控制相邻两直流电压电极之间是否相互导通，所述多个开关处于开启状态时，所述多个直流电压电极彼此相互导通，所述多个开关处于关闭状态时，所述多个直流电压电极彼此相互绝缘。
  18. 根据权利要求17所述的有机发光二极管显示面板，其中：所述多个开关处于所述开启状态时，每个直流电压电极上的发光单元根据相同输入信号发光显示，所述多个开关处于所述关闭状态时，每个直流电压电极上的发光单元根据与其对应连接的输入电压源输入的输入信号发光显示。
  19. 根据权利要求17所述的有机发光二极管显示面板，其中：每个开关为薄膜晶体管，其源极端与漏极端分别连接于相邻两直流电压电极之间，其栅极端接收使能信号，所述能信号用以控制每个开关的开启与关闭。
  20. 根据权利要求17所述的有机发光二极管显示面板，其中：所述输入电压为第二电压时所输出的画面具有比所述输入电压为第一电压时所输出的画面亮度亮，其中所述第二电压的值大于所述第一电压的值。
PCT/CN2020/124503 2020-09-29 2020-10-28 分区显示结构、显示面板、有机发光二极管显示面板 Ceased WO2022067932A1 (zh)

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