WO2020199286A1 - 驱动补偿方法、补偿电路、显示面板及其显示装置 - Google Patents

驱动补偿方法、补偿电路、显示面板及其显示装置 Download PDF

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WO2020199286A1
WO2020199286A1 PCT/CN2019/084524 CN2019084524W WO2020199286A1 WO 2020199286 A1 WO2020199286 A1 WO 2020199286A1 CN 2019084524 W CN2019084524 W CN 2019084524W WO 2020199286 A1 WO2020199286 A1 WO 2020199286A1
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Prior art keywords
compensation
pixel
data
display
display panel
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PCT/CN2019/084524
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English (en)
French (fr)
Inventor
张晋芳
杨学炎
樊磊
谢宗哲
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北京集创北方科技股份有限公司
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Priority to KR1020197038429A priority Critical patent/KR102274855B1/ko
Priority to JP2019572566A priority patent/JP2022503271A/ja
Publication of WO2020199286A1 publication Critical patent/WO2020199286A1/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]
    • 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
    • G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
    • 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
    • G09G2310/00—Command of the display device
    • G09G2310/06—Details of flat display driving waveforms
    • 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
    • G09G2320/029—Improving the quality of display appearance by monitoring one or more pixels in the display panel, e.g. by monitoring a fixed reference pixel
    • 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
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0693—Calibration of display systems

Definitions

  • the present invention relates to the field of display technology, in particular to a driving compensation method, a compensation circuit, a display panel and a display device thereof.
  • OLED Organic Light Emitting Diode, organic electroluminescent diode
  • OLED display panel is currently one of the display devices with the most development potential. It has the characteristics of self-luminescence, low driving voltage, and short response time.
  • OLED display panels use transparent electrodes and metal electrodes as the anode and cathode of the device, respectively. Under a certain voltage drive, electrons and holes are injected from the cathode and anode to the electron and hole transport layer respectively, and the electrons and holes pass through the electron and hole respectively.
  • the hole transport layer migrates to the light-emitting layer, and combines in the light-emitting layer to form excitons to excite the light-emitting molecules to emit visible light.
  • OLED display panels are divided into AMOLED (Active-Matrix Organic Light Emitting Diode) display panels and PMOLED (Passive-Matrix Organic Light Emitting Diode) display panels.
  • AMOLED Active-Matrix Organic Light Emitting Diode
  • PMOLED Passive-Matrix Organic Light Emitting Diode
  • the AMOLED display panel uses an independent thin film transistor to control each pixel unit, and each pixel unit can be driven to emit light continuously or independently.
  • the driving time passes, the aging of thin film transistors and organic light-emitting diodes becomes more serious.
  • the uniformity of the light-emitting current flowing through the organic light-emitting diode is reduced, which still causes the display of the display panel.
  • the brightness is uneven.
  • the purpose of the present invention is to provide a driving compensation method, a compensation circuit, a display panel and a display device thereof, so as to compensate and update the pixel data according to the aging state of the components of the pixel unit in the display panel to improve the display of the display panel. Consistency of brightness.
  • a drive compensation method which includes collecting and learning first sensing data that characterizes the display condition in a test mode to establish a compensation calculation model; in the display mode, collecting the first sensing data characterizing the display condition 2. Sensing data to calculate corresponding compensation data according to the compensation calculation model, and update pixel data for screen display according to the compensation data.
  • the first sensing data is learned by executing a neural network calculation program to extract characteristic coefficients, and the compensation calculation model is established according to the characteristic coefficients.
  • the neural network-like calculation program is executed to extract the characteristic coefficients according to pixel data, charging time, and first sensing data, and the characteristic coefficients are used to characterize components in a pixel unit
  • the compensation calculation model represents the relationship between the second sensing data and the characteristic coefficient.
  • weighting calculation is performed on the second sensing data according to the compensation calculation model to obtain the compensation data.
  • the second sensing data of at least one pixel unit of the pixel array is controlled to be collected to characterize the display condition of the pixel array.
  • a compensation circuit for executing the driving compensation method provided above.
  • a display panel including a pixel array, including a plurality of pixel units arranged in an array, each of the pixel units generates a light-emitting current according to corresponding pixel data for display, and each column of the The pixel units are respectively electrically connected with corresponding auxiliary lines; the driving circuit respectively provides corresponding pixel data to the plurality of pixel units, and is used to collect the light-emitting current through a plurality of the auxiliary lines to obtain the pixel unit
  • the calculation model calculates the second sensing data to obtain corresponding compensation data, wherein the driving circuit updates the pixel data based on the compensation data.
  • the compensation circuit executes a neural network-like calculation program to learn the first sensing data to extract characteristic coefficients, and establish the compensation calculation model according to the characteristic coefficients.
  • the compensation circuit extracts the characteristic coefficients according to the pixel data, charging time, and first sensing data, and the characteristic coefficients are used to characterize the performance of the components in the pixel unit Aging state.
  • the compensation circuit performs a weighted calculation on the characteristic coefficient and the second sensing data based on the compensation calculation model to obtain the compensation data of the pixel unit.
  • the driving circuit includes a row driving unit, which is connected to each row of pixel units through a scan line to control the transmission of the pixel data; a sensing driving unit, which is connected to each row of pixel units through a sensing line to control collection The first sensing data and the second sensing data; and a column driving unit, which provides the pixel data to each column of pixel units through a data line.
  • the pixel unit includes a first switch tube, a control terminal of the first switch tube is connected to the scan line, an input terminal of the first switch tube is connected to the data line; a second switch tube, so The control terminal of the second switch tube is connected to the output terminal of the first switch tube, the input terminal of the second switch tube is connected to and receives the first voltage; one end of the light emitting diode is connected to the output terminal of the second switch tube to Receiving the light-emitting current, the other end is connected to and receiving the second voltage; and a third switch tube, the control end of the third switch tube is connected to the sensing line, and the input end of the third switch tube is connected to the first The output terminal of the second switch tube, and the output terminal of the third switch tube is connected to the auxiliary line.
  • the driving circuit further includes an analog-to-digital converter, which is connected to the output terminal of the second switch tube through an auxiliary line, and converts the light-emitting current collected in the test mode and the display mode Respectively converted into the first sensing data and the second sensing data and output.
  • an analog-to-digital converter which is connected to the output terminal of the second switch tube through an auxiliary line, and converts the light-emitting current collected in the test mode and the display mode Respectively converted into the first sensing data and the second sensing data and output.
  • the input terminal of the compensation circuit is connected to the analog-to-digital converter, and the output terminal of the compensation circuit is connected to the column driving unit to provide the compensation data.
  • the sensing driving unit controls at least one third switch tube of the pixel unit to be turned on, so that the analog-to-digital converter collects the second sensing data, using To characterize the display state of the pixel array.
  • the analog-to-digital converter collects the second sensing data of one pixel unit in a row of the pixel array.
  • the one pixel unit in a row of the pixel array is located in the same column or a different column of the pixel array.
  • the analog-to-digital converter collects a plurality of consecutive second sensing data of the pixel unit in a row of the pixel array.
  • the multiple consecutive pixel units in a row of the pixel array are located in the same column of the pixel array.
  • At least two columns of the pixel units in the pixel array share one auxiliary line.
  • the display panel includes an AMOLED display panel.
  • a display device including the display panel provided above.
  • the pixel array is driven by a driving circuit to collect the first sensing data and the second sensing data.
  • the compensation circuit executes a neural network calculation program to learn the first sensing data to extract features Coefficients and establish a compensation calculation model.
  • the compensation circuit trains the second sensing data based on the compensation calculation model to obtain the corresponding compensation data and output it to update the pixel data for displaying the picture.
  • the driving circuit controls to obtain the second sensing data through uniform spot sampling collection, edge column sampling collection, edge block sampling collection, etc., and the compensation circuit can more accurately obtain the second sensing data based on the above collection.
  • the data is based on the established compensation calculation model to compensate and update the pixel data to improve the display brightness consistency of the display panel.
  • the amount of compensation calculation is reduced, and the number of output pins of the compensation circuit is reduced.
  • the display quality of the display panel is improved on the basis of low investment cost and low requirements for system components.
  • FIG. 1 shows a schematic structural diagram of a display panel according to an embodiment of the present invention
  • Fig. 2 shows a schematic circuit diagram of a pixel unit according to an embodiment of the present invention
  • FIG. 3 shows a schematic diagram of the principle of the display panel provided in the first embodiment of the present invention during the driving compensation process
  • FIG. 4 shows a schematic diagram of the display panel according to the second embodiment of the present invention during the driving compensation process
  • FIG. 5 shows a schematic diagram of the display panel provided according to the third embodiment of the present invention during the driving compensation process.
  • Fig. 1 shows a schematic structural diagram of a display panel provided according to an embodiment of the present invention.
  • Fig. 2 shows a schematic circuit diagram of a pixel unit according to an embodiment of the present invention.
  • the display panel 1000 is, for example, an AMOLED display panel. It includes a pixel array 1100, a driving circuit, and a compensation circuit 1300.
  • the pixel array 1100 includes a plurality of pixel units 1110 arranged in an array in multiple rows and multiple columns.
  • the pixel unit 1110 receives pixel data to realize a display function, and senses its own light-emitting current through control.
  • FIG. 2 shows the internal structure of the pixel unit 1110 in the display panel 1000, including a first switching tube T1, a second switching tube T2, a third switching tube T3, and a light emitting diode OLED.
  • the control terminal of the first switch tube T1 is connected to the scan line 1121, and the input terminal of the first switch tube T1 is connected to the data line 1122.
  • the control terminal of the second switch tube T2 is connected to the output terminal of the first switch tube T1, and the input terminal of the second switch tube T2 is connected to and receives the first voltage.
  • One end of the light emitting diode OLED is connected to the output end of the second switch tube T2 to receive the light emitting current Id for display, and the other end is connected to and receives the second voltage.
  • the control terminal of the third switch tube T3 is connected to the sensing line 1123, the input terminal of the third switch tube T3 is connected to the output terminal of the second switch tube T2 to sense the luminous current Id, and the output terminal of the third switch tube T3 is connected to the auxiliary line 1124 .
  • the driving circuit provides pixel data to the plurality of pixel units 1110 and drives them to display images, and is used to control and collect the first sensing data of the pixel units 1110 in the test mode and the second sensing data in the display mode.
  • the driving circuit includes a row driving unit 1210, a column driving unit 1220, a sensing driving unit 1230, and a data converter 1240.
  • the row driving unit 1210 is connected to the control terminal of the first switch tube T1 through the scan line 1121 to control the turning on of the first switch tube T1 to transmit pixel data to the second switch tube T2.
  • the column driving unit 1220 is connected to the input terminal of the first switch tube T1 through the data line 1122 to provide pixel data to the pixel unit 1110.
  • the sensing driving unit 1230 is connected to the control terminal of the third switching tube T3 through the sensing line 1123 to control the turning on of the third switching tube T3 to sense the light-emitting current Id flowing through the light-emitting diode OLED, which is used to characterize the display status of the pixel unit 1110 .
  • the input terminal of the analog-to-digital converter 1240 is connected to the output terminal of the third switch tube T3 through the auxiliary line 1124 to obtain the light-emitting current Id, and the output terminal of the analog-to-digital converter 1240 outputs the sensing data obtained by the conversion of the light-emitting current Id.
  • the pixel data provided by the column driving unit 1220 in the display panel 1000 is provided by the system side.
  • the pixel unit 1110 is provided with test pixel data
  • the light-emitting diode OLED displays the test image
  • the sensing driving unit 1230 controls the pixel unit 1110 to sense the test light-emitting current and output it through the analog-to-digital converter 1240
  • the first sensing data characterizing the test light-emitting current.
  • the system side controls the display panel in the display mode, it provides display pixel data to the pixel unit 1110, the light-emitting diode OLED displays a normal image, and the sensing driving unit 1230 controls the pixel unit 1110 to sense the display light-emitting current and output it through the analog-to-digital converter 1240 The second sensing data characterizing the display luminescence current.
  • the compensation circuit 1300 is connected to the driving circuit, and in the test mode, a neural network-like calculation program is executed to learn the first sensing data to extract characteristic coefficients and establish a compensation calculation model.
  • the second sensing data is trained based on the compensation calculation model to obtain and output the corresponding compensation data.
  • the driving circuit updates the pixel data based on the compensation data to perform a display action.
  • the first switch tube T1 is turned on through the row driving unit 1210 to transmit pixel data Vdata representing the test image, and the second switch tube is turned on when the control terminal of the second switch tube T2 receives the pixel data Vdata.
  • the output terminal of the second switching tube T2 is charged.
  • the first switching tube T1 is turned off, and the output terminal of the second switching tube T2 is fully charged and provides a light emitting current Id to the light emitting diode OLED , Making the light-emitting diode OLED display pixel data characterizing the test picture.
  • the third switch tube T3 is controlled to be turned on by the sensing and driving unit 1230 to obtain the light-emitting current Id.
  • the light-emitting current Id is converted by the analog-to-digital converter 1240 to obtain the first sensing data and output.
  • the compensation circuit 1300 learns the first sensing data through, for example, a neural network calculation program stored in a register. Among them, this type of neural network calculation program extracts the characteristic coefficient k representing the aging state of the internal components of the pixel unit 1110 based on the pixel data Vdata, the charging time t, and the first sensing data.
  • the light-emitting current represented by the first sensing data is related to the pixel data Vdata, the charging time t, and the characteristic coefficient k, where the characteristic coefficient k may, for example, characterize the threshold drift degree of the component.
  • the compensation circuit 1300 establishes a compensation calculation model through a neural network-like calculation program based on the characteristic coefficient k that characterizes the electrical state of the components in each pixel unit in the pixel array extracted from multiple tests.
  • the second sensing data is collected according to the working principle of the pixel unit 1110 described above, and the compensation circuit 1300 trains the second sensing data based on the compensation calculation model to obtain the compensation data and outputs it to the column driving unit 1220.
  • the driving unit 1220 updates the pixel data according to the received compensation data, so as to perform screen display through the compensated pixel data.
  • the compensation calculation model represents the relationship between the second sensing data and the compensation data based on the extracted feature coefficient k.
  • the display panel provided by the present invention has an external compensation circuit, which compensates pixel data to improve the consistency of the display brightness of the display panel.
  • the following embodiments will specifically describe the compensation process of the display panel. The display process and principle in the display mode have been described in the above content, so the details are not described below.
  • FIG. 3 shows a schematic diagram of the principle of the display panel provided in the first embodiment of the present invention during the driving compensation process.
  • the sensing driving unit 2230 When the display panel 2000 is in the display mode, the sensing driving unit 2230 only provides a sensing driving signal to one pixel unit 2110 in each row of pixel units in the pixel array 2100 through the sensing line 2123, wherein one pixel unit in each row They are in different columns from each other.
  • the analog-to-digital converter 2240 collects and converts the number of rows of second sensing data through the auxiliary line 2124.
  • the compensation circuit 2300 trains the second sensing data to obtain compensation data based on the established compensation calculation model, so as to update the pixel data for display and improve the display brightness consistency of the display panel.
  • the second sensing data representing the display state in the pixel array is collected by uniform sampling, and the pixel data is compensated and updated to continue the display operation, which reduces the amount of calculations in the compensation process and reduces the compensation.
  • the number of output pins of the circuit also improves the consistency of the display brightness of the display panel.
  • FIG. 4 shows a schematic diagram of the display panel according to the second embodiment of the present invention during the driving compensation process.
  • the sensing driving unit 3230 when the display panel 3000 is in the display mode, the sensing driving unit 3230 only provides a sensing driving signal to one pixel unit 3110 in each row of pixel units in the pixel array 3100 through the sensing line 3123, where each One pixel unit in the row is located in the same column.
  • the analog-to-digital converter 3240 collects and converts the number of rows of second sensing data through the auxiliary line 3124.
  • the compensation circuit 3300 trains the second sensing data to obtain compensation data based on the established compensation calculation model, so as to update the pixel data for display and improve the display brightness consistency of the display panel.
  • the second sensing data of a certain column of pixel units in the edge portion of the pixel array is collected by sampling, and the pixel data is compensated and updated to continue the display operation, which not only reduces the amount of calculation in the compensation process, but also The number of output pins of the compensation circuit is reduced, and the display brightness consistency of the display panel is also improved.
  • this embodiment collects the second sensing data of a certain column of pixel units in the edge part by sampling. To characterize the display of the entire pixel array.
  • FIG. 5 shows a schematic diagram of the display panel provided according to the third embodiment of the present invention during the driving compensation process.
  • the sensing driving unit 4230 only provides sensing to a continuous plurality of pixel units 4110 in the pixel array 4100, for example, in a plurality of rows of pixel units located at the edge portion through the sensing line 4123.
  • the driving signal is measured, wherein the consecutive multiple pixel units in each row are respectively located in the same column.
  • the analog-to-digital converter 4240 collects and converts the second sensing data through the auxiliary line 4124.
  • the compensation circuit 4300 trains the second sensing data to obtain compensation data based on the established compensation calculation model, so as to update the pixel data for display and improve the consistency of the display brightness of the display panel.
  • the second sensing data of a plurality of consecutive pixel units in a certain row of pixel units located in the edge part of the pixel array is collected by sampling, wherein the multiple pixel units collected in each row of pixel units are, for example, Located in the same column in the array.
  • the compensation circuit compensates and updates the pixel data to continue the display operation, which not only reduces the amount of calculation in the compensation process, but also reduces the number of output pins of the compensation circuit, and also improves the display brightness consistency of the display panel.
  • this embodiment collects the second sensing data of a certain block of pixel units in the edge part by sampling. Used to characterize the display of the entire pixel array.
  • the second sensing data representing the light-emitting current of the pixel unit is sampled and collected in the pixel array through the above-mentioned different embodiments, and the corresponding compensation data is obtained based on the compensation data type and output for compensation Update pixel data.
  • the above-mentioned embodiments can compensate and update pixel data more accurately according to the display situation of the entire display array through uniform spot sampling collection, edge column sampling collection, edge block sampling collection, etc., so as to improve the display panel performance. Display brightness consistency.
  • the amount of compensation calculation is reduced, and the number of output pins of the compensation circuit is reduced. The display quality of the display panel is improved on the basis of low investment cost and low requirements for system components.
  • the driving compensation method provided by the present invention is implemented in the compensation circuit of the display panel provided above.
  • the method includes: in the test mode, collecting first sensing data that characterizes the display condition, learning the first sensing data according to a neural network-like calculation program to extract feature coefficients and establishing a compensation calculation model; in the display mode, collecting the characterization display The second sensing data of the condition is calculated according to the compensation calculation model to obtain corresponding compensation data, and the pixel data for screen display is compensated and updated according to the compensation data.
  • the display device provided by the present invention includes the display panel provided above.

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  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
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Abstract

一种驱动补偿方法、补偿电路（1300；2300；3300；4300）、显示面板（1000；2000；3000；4000）及其显示装置，驱动补偿方法包括：在测试模式下，采集并学习表征显示状况的第一感测数据，以建立补偿计算模型；在显示模式下，采集表征显示状况的第二感测数据，以根据补偿计算模型计算得到对应的补偿数据，并根据补偿数据更新用于画面显示的像素数据。显示面板（1000；2000；3000；4000）在测试模式下建立补偿计算模型，在显示模式下抽样采集像素单元的第二感测数据以补偿像素数据，提高了显示面板的显示亮度一致性。

Description

驱动补偿方法、补偿电路、显示面板及其显示装置
本申请要求了申请日为2019年3月29日、申请号为2019102474522、名称为“驱动补偿方法、补偿电路、显示面板及其显示装置”的中国发明申请的优先权，并且通过参照上述中国发明申请的全部说明书、权利要求、附图和摘要的方式，将其引用于本申请。
技术领域
本发明涉及显示技术领域，特别涉及一种驱动补偿方法、补偿电路、显示面板及其显示装置。
背景技术
OLED(Organic Light Emitting Diode，有机电致发光二极管)显示面板是目前最具有发展潜力之一的显示设备，具有自发光、驱动电压低、响应时间短等特点。OLED显示面板利用透明电极和金属电极分别作为器件的阳极和阴极，在一定电压驱动下，电子和空穴分别从阴极和阳极注入到电子和空穴传输层，电子和空穴分别经过电子和空穴传输层迁移到发光层，并在发光层中结合形成激子使发光分子激发进而发出可见光。
按照驱动方式不同，OLED显示面板分为AMOLED(Active-Matrix Organic Light Emitting Diode，有源矩阵有机发光二极管)显示面板和PMOLED(Passive-Matrix Organic Light Emitting Diode，无源矩阵有机发光二极管)显示面板。
其中，AMOLED显示面板采用独立的薄膜晶体管去控制每个像素单元，每个像素单元皆可以连续或者独立的驱动发光。然而在使用过程中，随着驱动时间的推移，薄膜晶体管以及有机发光二极管的老化情况变得更严重，即使驱动电压相同，流经有机发光二极管的发光电流一致性降低，仍造成显示面板的显示亮度不均匀。
发明内容
鉴于上述问题，本发明的目的在于提供一种驱动补偿方法、补偿电路、显示面板及其显示装置，从而根据显示面板中像素单元的元器件老化状态对像素数据进行补偿更新，以提高显示面板显示亮度的一致性。
根据本发明的一方面，提供一种驱动补偿方法，包括在测试模式下，采集并学习表征显示状况的第一感测数据，以建立补偿计算模型；在显示模式下，采集表征显示状况的第二感测数据，以根据所述补偿计算模型计算得到对应的补偿数据，并根据所述补偿数据更新用于画面显示的像素数据。
可选地，通过执行类神经网络计算程序学习所述第一感测数据以提取特征系数，并根据所述特征系数建立所述补偿计算模型。
可选地，在所述测试模式下，执行所述类神经网络计算程序以根据像素数据、充电时间、第一感测数据提取所述特征系数，所述特征系数用于表征像素单元中元器件的老化状态，所述补偿计算模型表征所述第二感测数据与所述特征系数的关系。
可选地，在所述显示模式下，根据所述补偿计算模型对所述第二感测数据执行加权计算，得到所述补偿数据。
可选地，在显示模式下，控制采集像素阵列的至少一个像素单元的第二感测数据，以表征所述像素阵列的显示状况。
根据本发明的另一方面，提供一种补偿电路，用于执行上述提供的所述驱动补偿方法。
根据本发明的另一方面，提供一种显示面板，包括像素阵列，包括多个阵列排布的像素单元，每个所述像素单元根据相应的像素数据产生发光电流以进行显示，每列所述像素单元分别与相应的辅助线电连接；驱动电路，分别向所述多个像素单元提供相应的所述像素数据，并用于通过多条所述辅助线采集所述发光电流以获得所述像素单元在测试模式下的第一感测数据、在显示模式下的第二感测数据；以及补偿电路，连接所述驱动电路，根据所述第一感测数据建立补偿计算模型，并基于所述补偿计算模型对所述第二感测数据计算，得到对应的补偿数据，其中， 所述驱动电路基于所述补偿数据更新所述像素数据。
可选地，所述补偿电路执行类神经网络计算程序学习所述第一感测数据以提取特征系数，并根据所述特征系数建立所述补偿计算模型。
可选地，在所述测试模式下，所述补偿电路根据所述像素数据、充电时间、第一感测数据提取所述特征系数，所述特征系数用于表征所述像素单元中元器件的老化状态。
可选地，所述补偿电路基于所述补偿计算模型，对所述特征系数和所述第二感测数据执行加权计算，得到所述像素单元的补偿数据。
可选地，所述驱动电路包括行驱动单元，通过扫描线连接每行所述像素单元以控制传输所述像素数据；感测驱动单元，通过感测线连接每行所述像素单元以控制采集第一感测数据以及第二感测数据；以及列驱动单元，通过数据线向所述每列像素单元提供所述像素数据。
可选地，所述像素单元包括第一开关管，所述第一开关管的控制端连接所述扫描线，所述第一开关管的输入端连接所述数据线；第二开关管，所述第二开关管的控制端连接所述第一开关管的输出端，所述第二开关管的输入端连接并接收第一电压；发光二极管，一端连接所述第二开关管的输出端以接收所述发光电流，另一端连接并接收第二电压；以及第三开关管，所述第三开关管的控制端连接所述感测线，所述第三开关管的输入端连接所述第二开关管的输出端，所述第三开关管的输出端连接辅助线。
可选地，所述驱动电路还包括模数转换器，所述模数转换器通过辅助线连接所述第二开关管的输出端，将所述测试模式以及显示模式下采集的所述发光电流分别转换为所述第一感测数据以及所述第二感测数据输出。
可选地，所述补偿电路的输入端连接所述模数转换器，所述补偿电路的输出端连接所述列驱动单元以提供所述补偿数据。
可选地，在所述像素阵列中，所述感测驱动单元至少控制一个所述像素单元的第三开关管导通，以使所述模数转换器采集所述第二感测数据，用来表征所述像素阵列的显示状态。
可选地，所述模数转换器在所述像素阵列的一行中采集一个所述像素单元的第二感测数据。
可选地，所述像素阵列一行中的所述一个像素单元位于所述像素阵列的同一列或者不同列。
可选地，所述模数转换器在所述像素阵列的一行中采集多个连续的所述像素单元的第二感测数据。
可选地，所述像素阵列一行中的所述多个连续的像素单元位于所述像素阵列的同一列。
可选地，所述像素阵列中的至少两列所述像素单元共用一条所述辅助线。
可选地，所述显示面板包括AMOLED显示面板。
根据本发明的另一方面，提供一种显示装置，包括上述提供的所述显示面板。
本发明提供的显示面板，通过驱动电路驱动像素阵列以采集得到第一感测数据和第二感测数据，在测试模式下，补偿电路执行类神经网络计算程序学习第一感测数据以提取特征系数并建立补偿计算模型。在显示模式下，补偿电路基于补偿计算模型训练第二感测数据，以得到对应的补偿数据并输出以更新用于显示画面的像素数据。
具体地，驱动电路控制以通过均匀点化抽样采集、边缘列抽样采集、边缘区块化抽样采集等采集方式得到第二感测数据，补偿电路可以更准确地根据上述采集得到的第二感测数据基于建立的补偿计算模型对像素数据进行补偿、更新，以提高显示面板的显示亮度一致性。并且该驱动补偿过程中，降低了补偿运算量、减少了补偿电路的输出管脚数量。在投入成本低、对系统器件要求低的基础上提升了显示面板的显示质量。
附图说明
通过以下参照附图对本发明实施例的描述，本发明的上述以及其他目的、特征和优点将更为清楚，在附图中：
图1示出了根据本发明实施例提供的显示面板的结构示意图；
图2示出了根据本发明实施例提供的像素单元的电路示意图；
图3示出了根据本发明第一实施例提供的显示面板在驱动补偿过程中的原理示意图；
图4示出了根据本发明第二实施例提供的显示面板在驱动补偿过程中的示意图；
图5示出了根据本发明第三实施例提供的显示面板在驱动补偿过程中的示意图。
具体实施方式
以下将参照附图更详细地描述本发明的各种实施例。在各个附图中，相同的元件采用相同或类似的附图标记来表示。为了清楚起见，附图中的各个部分没有按比例绘制。
下面结合附图和实施例，对本发明的具体实施方式作进一步详细描述。
图1示出了根据本发明实施例提供的显示面板的结构示意图。图2示出了根据本发明实施例提供的像素单元的电路示意图。
如图1所示，显示面板1000例如为一种AMOLED显示面板。包括像素阵列1100、驱动电路以及补偿电路1300。像素阵列1100包括多行多列呈阵列排布的多个像素单元1110。
像素单元1110接收像素数据以实现显示功能，并通过控制感测自身的发光电流。具体地，如图2示出了该显示面板1000中像素单元1110的内部结构，包括第一开关管T1、第二开关管T2、第三开关管T3以及发光二极管OLED。
结合图1、图2所示，第一开关管T1的控制端连接扫描线1121，第一开关管T1的输入端连接数据线1122。第二开关管T2的控制端连接第一开关管T1的输出端，第二开关管T2的输入端连接并接收第一电压。发光二极管OLED的一端连接第二开关管T2的输出端以接收用于显示的发光电流Id，另一端连接并接收第二电压。第三开关管T3的控制端连接感测线1123，第三开关管T3的输入端连接第二开关管T2的输出端 以感测发光电流Id，第三开关管T3的输出端连接辅助线1124。
驱动电路向多个像素单元1110提供像素数据并驱动以显示画面，以及用于控制并采集像素单元1110在测试模式下的第一感测数据、在显示模式下的第二感测数据。驱动电路包括行驱动单元1210、列驱动单元1220、感测驱动单元1230以及数据转换器1240。
行驱动单元1210通过扫描线1121连接第一开关管T1的控制端以控制导通第一开关管T1传输像素数据至第二开关管T2。列驱动单元1220通过数据线1122连接第一开关管T1的输入端以向像素单元1110中提供像素数据。感测驱动单元1230通过感测线1123连接第三开关管T3的控制端以控制导通第三开关管T3感测流过发光二极管OLED中的发光电流Id，用于表征像素单元1110的显示状况。模数转换器1240的输入端通过辅助线1124连接第三开关管T3的输出端以得到发光电流Id，模数转换器1240的输出端将通过发光电流Id转换得到的感测数据输出。
具体地，显示面板1000中有列驱动单元1220提供的像素数据由系统端提供。当系统端控制显示面板处于测试模式时，向像素单元1110中提供测试像素数据，发光二极管OLED显示测试画面，感测驱动单元1230控制像素单元1110感测测试发光电流并通过模数转换器1240输出表征该测试发光电流的第一感测数据。当系统端控制显示面板处于显示模式时，向像素单元1110中提供显示像素数据，发光二极管OLED显示正常画面，感测驱动单元1230控制像素单元1110感测显示发光电流并通过模数转换器1240输出表征该显示发光电流的第二感测数据。
补偿电路1300连接驱动电路，在测试模式下，执行类神经网络计算程序学习第一感测数据以提取特征系数并建立补偿计算模型。在显示模式下，基于补偿计算模型训练第二感测数据，以得到对应的补偿数据并输出。驱动电路基于补偿数据更新像素数据以执行显示动作。
具体地，在测试模式下，第一开关管T1通过行驱动单元1210导通以传输表征测试画面的像素数据Vdata，第二开关管T2的控制端接收到像素数据Vdata时导通第二开关管T2，此时对第二开关管T2的输出端充电，在经过充电时间t后，第一开关管T1关断，第二开关管T2的输 出端充电完毕并向发光二极管OLED提供一发光电流Id，使得发光二极管OLED显示表征测试画面的像素数据。此时第三开关管T3经由感测驱动单元1230控制导通以得到发光电流Id。该发光电流Id经由模数转换器1240转换后得到第一感测数据并输出。补偿电路1300通过例如存储在寄存器中的一类神经网络计算程序，对第一感测数据进行学习。其中，该类神经网络计算程序根据像素数据Vdata、充电时间t、第一感测数据提取得到表征像素单元1110内部元器件老化状态的特征系数k。第一感测数据表征的发光电流与像素数据Vdata、充电时间t以及特征系数k有关，其中特征系数k例如可以表征元器件的阈值漂移程度。补偿电路1300根据多次测试提取得到的表征像素阵列中每个像素单元中元器件电气状态的特征系数k，通过类神经网络计算程序建立补偿计算模型。
在显示模式下，按照上述描述的像素单元1110的工作原理采集得到第二感测数据，补偿电路1300将第二感测数据基于补偿计算模型进行训练得到补偿数据并输出至列驱动单元1220，列驱动单元1220根据接收的补偿数据更新像素数据，以通过补偿后的像素数据进行画面显示。其中补偿计算模型基于提取得到的特征系数k表征了第二感测数据和补偿数据之间的关系。
本发明提供的显示面板具有外部补偿电路，通过补偿像素数据以提高显示面板显示亮度的一致性。下述实施例将具体描述显示面板的补偿过程。其中显示模式下的显示过程以及原理在上述内容已经描述，因此以下不再赘述。
图3示出了根据本发明第一实施例提供的显示面板在驱动补偿过程中的原理示意图。
如图3所示。显示面板2000在显示模式下时，感测驱动单元2230仅通过感测线2123向像素阵列2100中例如每行像素单元中的一个像素单元2110提供感测驱动信号，其中每行中的一个像素单元相互位于不同的列。模数转换器2240通过辅助线2124采集、转换得到行数量个第二感测数据。补偿电路2300基于建立的补偿计算模型对第二感测数据进行训练得到补偿数据，以更新用于显示的像素数据，提高显示面板的显示 亮度一致性。
其中本实施例中，通过均匀的抽样采集像素阵列中表征显示状态的第二感测数据，并对像素数据进行补偿更新以继续执行显示操作，既减少了补偿过程中的运算量又减少了补偿电路的输出赶脚数量，还提高了显示面板的显示亮度一致性。
图4示出了根据本发明第二实施例提供的显示面板在驱动补偿过程中的示意图。
如图4所示，显示面板3000在显示模式下时，感测驱动单元3230仅通过感测线3123向像素阵列3100中例如每行像素单元中的一个像素单元3110提供感测驱动信号，其中每行中的一个像素单元位于同一列。模数转换器3240通过辅助线3124采集、转换得到行数量个第二感测数据。补偿电路3300基于建立的补偿计算模型对第二感测数据进行训练得到补偿数据，以更新用于显示的像素数据，提高显示面板的显示亮度一致性。
其中本实施例中，通过抽样采集像素阵列中位于边缘部分的某一列像素单元的第二感测数据，并对像素数据进行补偿更新以继续执行显示操作，既减少了补偿过程中的运算量又减少了补偿电路的输出赶脚数量，还提高了显示面板的显示亮度一致性。
具体地，显示阵列中中心部分的像素单元中显示内容变化最快，其中的元器件老化可能性较低，因此本实施例通过抽样采集边缘部分的某一列像素单元的第二感测数据，用于表征整个像素阵列的显示情况。
图5示出了根据本发明第三实施例提供的显示面板在驱动补偿过程中的示意图。
如图5所示，显示面板4000在显示模式下时，感测驱动单元4230仅通过感测线4123向像素阵列4100中例如位于边缘部分的多行像素单元中的连续多个像素单元4110提供感测驱动信号，其中该每行中的连续多个像素单元分别位于同一列。模数转换器4240通过辅助线4124采集、转换得到第二感测数据。补偿电路4300基于建立的补偿计算模型对第二感测数据进行训练得到补偿数据，以更新用于显示的像素数据，提高显 示面板的显示亮度一致性。
其中本实施例中，通过抽样采集像素阵列中位于边缘部分的某几行像素单元中连续多个像素单元的第二感测数据，其中，每行像素单元中采集的多个像素单元例如在像素阵列中位于同一列。补偿电路对像素数据进行补偿更新以继续执行显示操作，既减少了补偿过程中的运算量又减少了补偿电路的输出赶脚数量，还提高了显示面板的显示亮度一致性。
具体地，显示阵列中中心部分的像素单元中显示内容变化最快，其中的元器件老化可能性较低，因此本实施例通过抽样采集边缘部分的某区块像素单元的第二感测数据，用于表征整个像素阵列的显示情况。
本发明提供的显示面板在驱动补偿阶段，通过上述不同的实施方式对像素阵列中抽样采集表征像素单元发光电流的第二感测数据，并基于补偿数据类型得到对应的补偿数据输出用于补偿、更新像素数据。其中上述实施方式通过均匀点化抽样采集、边缘列抽样采集、边缘区块化抽样采集等采集方式，可以更准确地根据整个显示阵列的显示情况对像素数据进行补偿、更新，以提高显示面板的显示亮度一致性。并且该驱动补偿过程中，降低了补偿运算量、减少了补偿电路的输出管脚数量。在投入成本低、对系统器件要求低的基础上提升了显示面板的显示质量。
本发明提供的驱动补偿方法在上述提供的显示面板的补偿电路中执行。该方法包括：在测试模式下，采集表征显示状况的第一感测数据，根据类神经网络计算程序学习第一感测数据以提取特征系数并建立补偿计算模型；在显示模式下，采集表征显示状况的第二感测数据，以根据补偿计算模型计算得到对应的补偿数据，并根据补偿数据补偿、更新用于画面显示的像素数据。
本发明提供的显示装置包括上述提供的显示面板。
依照本发明的实施例如上文所述，这些实施例并没有详尽叙述所有的细节，也不限制该发明仅为所述的具体实施例。显然，根据以上描述，可作很多的修改和变化。本说明书选取并具体描述这些实施例，是为了更好地解释本发明的原理和实际应用，从而使所属技术领域技术人员能很好地利用本发明以及在本发明基础上的修改使用。本发明仅受权利要 求书及其全部范围和等效物的限制。

Claims (22)

  1. 一种驱动补偿方法，其特征在于，包括：
    在测试模式下，采集并学习表征显示状况的第一感测数据，以建立补偿计算模型；
    在显示模式下，采集表征显示状况的第二感测数据，以根据所述补偿计算模型计算得到对应的补偿数据，并根据所述补偿数据更新用于画面显示的像素数据。
  2. 根据权利要求1所述的驱动补偿方法，其特征在于，通过执行类神经网络计算程序学习所述第一感测数据以提取特征系数，并根据所述特征系数建立所述补偿计算模型。
  3. 根据权利要求2所述的驱动补偿方法，其特征在于，在所述测试模式下，执行所述类神经网络计算程序以根据像素数据、充电时间、第一感测数据提取所述特征系数，所述特征系数用于表征像素单元中元器件的老化状态，所述补偿计算模型表征所述第二感测数据与所述特征系数的关系。
  4. 根据权利要求2所述的驱动补偿方法，其特征在于，在所述显示模式下，根据所述补偿计算模型对所述第二感测数据执行加权计算，得到所述补偿数据。
  5. 根据权利要求1所述的驱动补偿方法，其特征在于，在显示模式下，控制采集像素阵列的至少一个像素单元的第二感测数据，以表征所述像素阵列的显示状况。
  6. 一种补偿电路，其特征在于，用于执行权利要求1-5任一项所述的驱动补偿方法。
  7. 一种显示面板，其特征在于，包括：
    像素阵列，包括多个阵列排布的像素单元，每个所述像素单元根据相应的像素数据产生发光电流以进行显示，每列所述像素单元分别与相应的辅助线电连接；
    驱动电路，分别向所述多个像素单元提供相应的所述像素数据，并 用于通过多条所述辅助线采集所述发光电流以获得所述像素单元在测试模式下的第一感测数据、在显示模式下的第二感测数据；以及
    补偿电路，连接所述驱动电路，根据所述第一感测数据建立补偿计算模型，并基于所述补偿计算模型对所述第二感测数据计算，得到对应的补偿数据，
    其中，所述驱动电路基于所述补偿数据更新所述像素数据。
  8. 根据权利要求7所述的显示面板，其特征在于，所述补偿电路执行类神经网络计算程序学习所述第一感测数据以提取特征系数，并根据所述特征系数建立所述补偿计算模型。
  9. 根据权利要求8所述的显示面板，其特征在于，在所述测试模式下，所述补偿电路根据所述像素数据、充电时间、第一感测数据提取所述特征系数，所述特征系数用于表征所述像素单元中元器件的老化状态。
  10. 根据权利要求8所述的显示面板，其特征在于，所述补偿电路基于所述补偿计算模型，对所述特征系数和所述第二感测数据执行加权计算，得到所述像素单元的补偿数据。
  11. 根据权利要求10所述的显示面板，其特征在于，所述驱动电路包括：
    行驱动单元，通过扫描线连接每行所述像素单元以控制传输所述像素数据；
    感测驱动单元，通过感测线连接每行所述像素单元以控制采集第一感测数据以及第二感测数据；以及
    列驱动单元，通过数据线向所述每列像素单元提供所述像素数据。
  12. 根据权利要求11所述的显示面板，其特征在于，所述像素单元包括：
    第一开关管，所述第一开关管的控制端连接所述扫描线，所述第一开关管的输入端连接所述数据线；
    第二开关管，所述第二开关管的控制端连接所述第一开关管的输出端，所述第二开关管的输入端连接并接收第一电压；
    发光二极管，一端连接所述第二开关管的输出端以接收所述发光电流，另一端连接并接收第二电压；以及
    第三开关管，所述第三开关管的控制端连接所述感测线，所述第三开关管的输入端连接所述第二开关管的输出端，所述第三开关管的输出端连接辅助线。
  13. 根据权利要求12所述的显示面板，其特征在于，所述驱动电路还包括模数转换器，所述模数转换器通过辅助线连接所述第二开关管的输出端，将所述测试模式以及显示模式下采集的所述发光电流分别转换为所述第一感测数据以及所述第二感测数据输出。
  14. 根据权利要求13所述的显示面板，其特征在于，所述补偿电路的输入端连接所述模数转换器，所述补偿电路的输出端连接所述列驱动单元以提供所述补偿数据。
  15. 根据权利要求11所述的显示面板，其特征在于，在所述像素阵列中，所述感测驱动单元至少控制一个所述像素单元的第三开关管导通，以使所述模数转换器采集所述第二感测数据，用来表征所述像素阵列的显示状态。
  16. 根据权利要求15所述的显示面板，其特征在于，所述模数转换器在所述像素阵列的一行中采集一个所述像素单元的第二感测数据。
  17. 根据权利要求16所述的显示面板，其特征在于，所述像素阵列一行中的所述一个像素单元位于所述像素阵列的同一列或者不同列。
  18. 根据权利要求15所述的显示面板，其特征在于，所述模数转换器在所述像素阵列的一行中采集多个连续的所述像素单元的第二感测数据。
  19. 根据权利要求18所述的显示面板，其特征在于，所述像素阵列一行中的所述多个连续的像素单元位于所述像素阵列的同一列。
  20. 根据权利要求7所述的显示面板，其特征在于，所述像素阵列中的至少两列所述像素单元共用一条所述辅助线。
  21. 根据权利要求7所述的显示面板，其特征在于，所述显示面板包括AMOLED显示面板。
  22. 一种显示装置，其特征在于，包括权利要求7-21任一项所述的显示面板。
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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111048040B (zh) * 2020-01-02 2021-08-03 深圳市华星光电半导体显示技术有限公司 像素驱动电路电压补偿方法、电压补偿电路和显示面板
CN111508432B (zh) * 2020-05-29 2021-12-17 京东方科技集团股份有限公司 一种外部电学补偿侦测方法及amoled显示器
KR20220027382A (ko) * 2020-08-26 2022-03-08 삼성디스플레이 주식회사 표시 장치
KR20230050546A (ko) 2021-10-07 2023-04-17 삼성디스플레이 주식회사 표시 장치 및 이의 구동 방법
CN114373426A (zh) * 2022-01-20 2022-04-19 深圳市华星光电半导体显示技术有限公司 像素补偿方法、像素补偿结构及显示面板
KR20240087287A (ko) 2022-12-12 2024-06-19 한국단자공업 주식회사 연성회로기판과 센싱플레이트 결합장치 및 이를 사용한 연성회로기판과 센싱플레이트 결합방법

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150064787A (ko) * 2013-12-03 2015-06-12 엘지디스플레이 주식회사 유기발광 표시장치 및 그 열화 보상 방법
CN205751477U (zh) * 2016-05-12 2016-11-30 上海锦荃电子科技有限公司 有机发光显示器的像素驱动电路
CN106531068A (zh) * 2016-12-27 2017-03-22 北京集创北方科技股份有限公司 有机电致发光显示装置
CN107578746A (zh) * 2017-10-17 2018-01-12 京东方科技集团股份有限公司 像素驱动方法、装置和显示装置
CN108231000A (zh) * 2018-04-04 2018-06-29 深圳市华星光电半导体显示技术有限公司 Oled显示单元驱动补偿电路、oled显示电路及oled显示器
CN109377945A (zh) * 2018-11-08 2019-02-22 京东方科技集团股份有限公司 像素补偿方法、装置及系统

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4235045B2 (ja) * 2003-06-24 2009-03-04 株式会社 日立ディスプレイズ 表示装置の駆動方法
CA2504571A1 (en) * 2005-04-12 2006-10-12 Ignis Innovation Inc. A fast method for compensation of non-uniformities in oled displays
JP2008165159A (ja) * 2006-12-08 2008-07-17 Seiko Epson Corp 電気光学装置、その駆動方法、及び電子機器
KR100893482B1 (ko) * 2007-08-23 2009-04-17 삼성모바일디스플레이주식회사 유기전계발광 표시장치 및 그의 구동방법
JP2011034004A (ja) * 2009-08-05 2011-02-17 Sony Corp 補正回路および表示装置
KR101322322B1 (ko) * 2010-09-22 2013-10-28 가시오게산키 가부시키가이샤 발광장치 및 그 구동제어방법 그리고 전자기기
CN102222455B (zh) * 2011-06-14 2013-04-03 云南北方奥雷德光电科技股份有限公司 一种amoled微型显示器的寿命评估方法
KR101661016B1 (ko) * 2013-12-03 2016-09-29 엘지디스플레이 주식회사 유기발광 표시장치와 그의 화질 보상방법
CN104575382A (zh) * 2015-01-06 2015-04-29 昆山国显光电有限公司 Oled器件的老化补偿系统及其老化补偿方法
KR102435923B1 (ko) * 2015-08-05 2022-08-25 삼성디스플레이 주식회사 유기 발광 표시 장치 및 이의 구동 방법
CN107039004B (zh) * 2017-06-08 2019-04-30 深圳市华星光电半导体显示技术有限公司 Amoled显示面板的老化补偿方法
KR102350396B1 (ko) * 2017-07-27 2022-01-14 엘지디스플레이 주식회사 유기발광 표시장치와 그의 열화 센싱 방법

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150064787A (ko) * 2013-12-03 2015-06-12 엘지디스플레이 주식회사 유기발광 표시장치 및 그 열화 보상 방법
CN205751477U (zh) * 2016-05-12 2016-11-30 上海锦荃电子科技有限公司 有机发光显示器的像素驱动电路
CN106531068A (zh) * 2016-12-27 2017-03-22 北京集创北方科技股份有限公司 有机电致发光显示装置
CN107578746A (zh) * 2017-10-17 2018-01-12 京东方科技集团股份有限公司 像素驱动方法、装置和显示装置
CN108231000A (zh) * 2018-04-04 2018-06-29 深圳市华星光电半导体显示技术有限公司 Oled显示单元驱动补偿电路、oled显示电路及oled显示器
CN109377945A (zh) * 2018-11-08 2019-02-22 京东方科技集团股份有限公司 像素补偿方法、装置及系统

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