WO2014063384A1 - Amoled显示器及其精确补偿老化的方法 - Google Patents
Amoled显示器及其精确补偿老化的方法 Download PDFInfo
- Publication number
- WO2014063384A1 WO2014063384A1 PCT/CN2012/083944 CN2012083944W WO2014063384A1 WO 2014063384 A1 WO2014063384 A1 WO 2014063384A1 CN 2012083944 W CN2012083944 W CN 2012083944W WO 2014063384 A1 WO2014063384 A1 WO 2014063384A1
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- WIPO (PCT)
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- color depth
- display
- compensation
- image data
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Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—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
- 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
- G09G3/2007—Display of intermediate tones
- G09G3/2018—Display of intermediate tones by time modulation using two or more time intervals
- G09G3/2022—Display of intermediate tones by time modulation using two or more time intervals using sub-frames
- G09G3/2025—Display of intermediate tones by time modulation using two or more time intervals using sub-frames the sub-frames having all the same time duration
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2340/00—Aspects of display data processing
- G09G2340/06—Colour space transformation
Definitions
- the present invention relates to AMOLED display technology, and more particularly to an AMOLED display and a method for accurately compensating for aging. Background technique
- the AMOLED (Active Matrix/Organic Light Emitting Diode) panel is an active giant array organic light-emitting diode panel. Compared with the conventional liquid crystal panel, the AMOLED panel has the characteristics of faster response, higher contrast, and wider viewing angle.
- AMOLED is an OLED (Organic Light Emitting Diode) that emits light by carrier injection and recombination under the organic light-emitting diode.
- OI ED illumination is an OLED (Organic Light Emitting Diode) that emits light by carrier injection and recombination under the organic light-emitting diode.
- ITO Indium Tin Oxide
- metal electrode used as the anode and cathode of the device respectively.
- electrons and holes are injected from the cathode and the anode to the electron and hole transport layers, respectively.
- the electrons and holes pass through the electrons respectively.
- the hole transport layer migrates to the light-emitting layer and meets in the light-emitting layer to form excitons and excite the light-emitting molecules, and the latter emits visible light through radiation relaxation.
- Radiant light can be
- the metal electrode film also functioned as a reflective layer.
- OLED Compared to TFT-LCD (Thin Film Field Effect Transistor LCD), OLED has thinner and lighter, active illumination (no backlight required), no viewing angle problem, high definition, high brightness, fast response, low power consumption, temperature range of use Wide, shock-resistant, low-cost and flexible display, many of which are difficult to achieve with TFT LCD panels.
- TFT-LCD Thin Film Field Effect Transistor LCD
- the AMOLED display utilizes the current through the thin film of the organic material to generate light, different organic materials emit light of different colors.
- the organic material in the device ages, and the luminous efficiency becomes lower, shortening the display.
- the life of the device Different organic materials may age at different speeds, resulting in varying degrees of color aging, and the white field of the display varies with the use of the display.
- individual pixels may age at a different rate than other pixels, resulting in uneven display. Therefore, AMOLED displays must have compensation measures to maintain their performance.
- FIG. 1 it is a schematic structural diagram of an AMOLED display with aging compensation function which is common in the prior art.
- the AMOLED display comprises: a display panel 11 provided with AMOLED-based pixels; a data processor 12, processing image data from the video source and compensation data from the compensation unit 16, and outputting the compensated image data; (TCON) 13 , generating a timing control signal according to an output of the data processor 12; a driver 14 driving the display panel 11 according to the timing control signal; and displaying a measurement module 15 for measuring display uniformity of the display panel 11; 16. It generates compensation data according to the measurement result of the display measurement module 15 and transmits it to the data processor 12.
- the functions of the compensation unit 16 and the display measurement module 15 reference is made to the description of the Chinese patent application CN101194300A and the Chinese patent CN1886774B.
- the image data of the 8-bit (bit) color depth from the video source is transmitted to the data processor 12, and the image data of the 8-bit color depth processed by the data processor 12 is transmitted to the timing controller 13, and the main function of the timing controller 13 is
- the source driver and the gate driver provide necessary timing control signals.
- the timing of the timing controller 13 mainly depends on the data structure and display mode of the image data, and the timing control signal including the 8-bit color depth information is transmitted to the driver 14.
- the driver 14 is generally mainly composed of The source driver and the gate driver are composed, and the driver 14 drives the display panel 11 in accordance with the 8-bit color depth and converts it into a current to drive the OLED in the display panel 11 to emit visible light.
- the display effect required by the image data is inconsistent with the actual display effect on the display panel 11 due to the aging phenomenon of the AMOLED display, resulting in uneven display, and therefore OLED aging compensation is required.
- the compensation data of the 8-bit color depth is generated by the compensation unit 16
- the compensation data is transmitted to the data processor 12, and the image data is mixed to compensate the image data, 8 bits.
- the color depth compensated image data is transmitted to the timing controller 13, and then the display panel is driven by the driver 14.
- the display effect of the liquid crystal is determined by the effective voltage applied to the liquid crystal.
- the PWM Pulse Width Modulation
- FRC Full Rate Control
- the PWM is divided into several time slices in one scan time, such as 256 gray scales, and is divided into 256 time slices. Depending on the gray level to be realized, it is determined how many time slices have driving voltages.
- FIG. 3 it is a schematic diagram of the principle of the FRC technology in the prior art.
- the FRC technology is a technique that uses the visual persistence characteristic of the human eye to visually increase the number of colors by controlling the frame rate.
- the FRC uses a time-averaged approach that allows the human eye to experience different brightness levels.
- FRC is similar to PWM, except that each time slice becomes one frame.
- four time slices correspond to the first frame, the second frame, the third frame, and the fourth frame, respectively.
- the driving voltage is displayed, it is black.
- the color of the liquid crystal is the same as that of the gray scale, which is actually the gray level of the RGB three primary colors. Summary of the invention
- Another object of the present invention is to provide an AMOLED display that accurately compensates for aging and increases compensation accuracy.
- an AMOLED display which mainly includes: a display panel provided with an AMOLED-based pixel;
- a data processor that processes image data from the video source and compensation data from the compensation unit, and outputs the compensated image data, the image data having a first color depth, the compensation data and the compensated image data having a greater than a second color depth of the first color depth;
- a frame rate control module that adjusts the compensated image data to a first color depth
- a timing controller that generates a timing control signal according to an output of the frame rate control module
- a driver that is driven according to the timing control signal
- a compensation unit that generates the compensation data having the second color depth according to the measurement result of the display measurement module and transmits the compensation data to the data processor.
- the first color depth is 8 bits.
- the second color depth is 10 bits.
- the compensation unit includes a lookup table.
- the display panel just supports the first color depth.
- the present invention also provides a method for accurately compensating for aging of an AMOLED display, comprising: Step 51: A data processor processes image data from a video source and compensation data from a compensation unit, and outputs compensated image data, wherein the image data has a first color depth, the compensation data and the compensated image data having a second color depth greater than the first color depth;
- Step 52 The frame rate control module adjusts the compensated image data to a first color depth.
- Step 53 The timing controller generates a timing control signal according to the output of the frame rate control module.
- Step 54 The driver drives a display panel with an AMOLED-based pixel according to the timing control signal
- Step 55 The display measurement module measures display uniformity of the display panel;
- Step 56 The compensation unit generates the compensation data having the second color depth according to the measurement result of the display measurement module and transmits the compensation data to the data processor.
- the first color depth is 8 bits.
- the second color depth is 10 bits.
- the compensation unit includes a lookup table.
- the display panel just supports the first color depth.
- the invention also provides an AMOLED display, comprising:
- a data processor that processes image data from the video source and compensation data from the compensation unit, and outputs the compensated image data, the image data having a first color depth, the compensation data and the compensated image data having a greater than a second color depth of the first color depth;
- a frame rate control module that adjusts the compensated image data to a first color depth
- a timing controller that generates a timing control signal according to an output of the frame rate control module
- a driver that is driven according to the timing control signal
- a compensation unit which generates the compensation data having the second color depth according to the measurement result of the display measurement module and transmits the compensation data to the data processor;
- the first color depth is 8 bits
- the second color depth is 10 bits
- the compensation unit includes a lookup table
- the display panel just supports the first color depth.
- the AMOLED display of the present invention can compensate for aging of the OLED and increase the compensation accuracy.
- the AMOLED display of the present invention accurately compensates for aging by increasing the compensation accuracy of the AMOLED display.
- FIG. 1 is a schematic diagram showing the structure of an AMOLED display with aging compensation function which is common in the prior art
- FIG. 3 is a schematic diagram of the principle of the FRC technology in the prior art
- 4 is a schematic structural view of a preferred embodiment of an AMOLED display of the present invention
- FIG. 5 is a flow chart of a method for accurately compensating for aging of an AMOLED display of the present invention.
- the AMOLED display mainly includes: a display panel 41 provided with AMOLED-based pixels; a data processor 42 that processes image data from the video source and compensation data from the compensation unit 46, and outputs the compensated image data,
- the image data has a first color depth, the compensation data and the compensated image data have a second color depth greater than the first color depth;
- the frame rate control module 47 adjusts the compensated image data to the first color a timing controller 43 that generates a timing control signal according to an output of the frame rate control module 47; a driver 44 that drives the display panel 41 according to the timing control signal; and a display measurement module 45 that measures the display
- the display unit of the panel 41 is uniform; the compensation unit 46 generates the compensation data having the second color depth according to the measurement result of the display measurement module 45 and transmits the compensation data to the data processor 42.
- the 8-bit color depth image data from the video source is transmitted to the data processor 42, and the data processor 42 processes the 8-bit color depth image data from the video source and the 10-bit color depth compensation data from the compensation unit 46, and outputs The 10-bit color depth compensated image data; the frame rate control module 47 adjusts the 10-bit color depth compensated image data to an 8-bit color depth and transmits it to the timing controller 43 for timing control including 8-bit color depth information.
- the signal is transmitted to the driver 44, and the driver 44 drives the OLED in the display panel 41 to emit visible light according to the 8-bit color depth timing control signal.
- the compensation unit 46 As the compensation circuit, after the display measurement module 45 measures the display uniformity of the display panel 41, the compensation unit 46 generates compensation data of 10-bit color depth, the compensation data is transmitted to the data processor 42, and the image data is mixed to compensate The image data is such that the display effect required by the image data is consistent with the actual display effect on the display panel 41, so that the display is uniform.
- the display effect of the AMOLED display can also be adjusted by the FRC method.
- the invention aims at aging compensation data and increases the number of color depths, that is, the color depth is increased from 8 bits to 10 bits. Since the display panel can receive fewer color depth bits, the FRC method can be used to display the display effect. Higher color depth data, which increases the accuracy of the compensation.
- the invention needs to satisfy the case where the second color depth is greater than the first color depth, and other suitable configurations may be adopted except for the case where the first color depth is 8 bits and the second color depth is 10 bits.
- the display panel 41 can be preferably configured to support the first color depth, and the display panel 41 smaller than the first color depth cannot support the normal display of the image data, and the display panel 41 larger than the first color depth increases the cost, and For the display panel 41 greater than or equal to the second color depth, it is not necessary to employ the frame rate control module 47.
- Compensation unit 46 may include a lookup table that supports generating compensation data having a second color depth.
- FIG. 5 it is a flow chart of a method for accurately compensating for aging of an AMOLED display of the present invention.
- the method includes:
- Step 51 The data processor processes the image data from the video source and the compensation data from the compensation unit, and outputs the compensated image data, where the image data has a first color depth, and the compensation data and the compensated image data have a second color depth greater than the first color depth;
- Step 52 The frame rate control module adjusts the compensated image data to a first color depth.
- Step 53 The timing controller generates a timing control signal according to the output of the frame rate control module.
- Step 54 The driver drives a display panel with an AMOLED-based pixel according to the timing control signal
- Step 55 The display measurement module measures display uniformity of the display panel; and step 56, the compensation unit generates the compensation data with the second color depth according to the measurement result of the display measurement module, and transmits the compensation data to the data processor .
- the first color depth may be 8 bits
- the second color depth may be 10 bits
- the display panel just supports the first color depth.
- the compensation unit may include a lookup table that supports generation of compensation data having a second color depth.
- the AMOLED display of the present invention can compensate for aging of the OLED and increase the compensation accuracy.
- the method for accurately compensating for aging of the AMOLED display of the present invention can increase the compensation accuracy of the AMOLED display.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Electroluminescent Light Sources (AREA)
- Control Of El Displays (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112012007035.6T DE112012007035B4 (de) | 2012-10-22 | 2012-11-02 | AMOLED-Anzeigevorrichtung und Verfahren zum präzisen Kompensieren der Alterung dieser Vorrichtung. |
| US13/807,714 US9349312B2 (en) | 2012-10-22 | 2012-11-02 | AMOLED display device and method for precisely compensating aging thereof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210404875.9A CN102890913B (zh) | 2012-10-22 | 2012-10-22 | Amoled显示器及其精确补偿老化的方法 |
| CN201210404875.9 | 2012-10-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014063384A1 true WO2014063384A1 (zh) | 2014-05-01 |
Family
ID=47534402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2012/083944 Ceased WO2014063384A1 (zh) | 2012-10-22 | 2012-11-02 | Amoled显示器及其精确补偿老化的方法 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US9349312B2 (zh) |
| CN (1) | CN102890913B (zh) |
| DE (1) | DE112012007035B4 (zh) |
| WO (1) | WO2014063384A1 (zh) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104361859B (zh) * | 2014-11-18 | 2017-01-11 | 深圳市华星光电技术有限公司 | 显示装置及其亮度调节方法 |
| KR102286726B1 (ko) | 2015-05-14 | 2021-08-05 | 주식회사 실리콘웍스 | 디스플레이 장치 및 그 구동 회로 |
| US9870731B2 (en) | 2015-06-25 | 2018-01-16 | Intel Corporation | Wear compensation for a display |
| US9830851B2 (en) | 2015-06-25 | 2017-11-28 | Intel Corporation | Wear compensation for a display |
| US10002562B2 (en) | 2016-03-30 | 2018-06-19 | Intel Corporation | Wear compensation for a display |
| CN106531083A (zh) * | 2016-12-15 | 2017-03-22 | 上海天马有机发光显示技术有限公司 | 像素电路的补偿方法、oled显示面板及其补偿方法 |
| US10747293B2 (en) * | 2017-01-23 | 2020-08-18 | Hewlett-Packard Development Company, L.P. | Timing controllers for display devices |
| WO2019183811A1 (zh) | 2018-03-27 | 2019-10-03 | 华为技术有限公司 | 屏幕亮度调节方法及终端 |
| CN108447452B (zh) * | 2018-03-28 | 2020-03-27 | 惠科股份有限公司 | 显示装置及其驱动方法 |
| CN113242465B (zh) * | 2021-04-27 | 2022-08-16 | Oppo广东移动通信有限公司 | 视频处理方法、装置、电子设备及可读存储介质 |
| CN114842800B (zh) * | 2022-05-19 | 2024-05-31 | 姜英 | 采用离线标定减弱amoled显示屏退化的补偿方法 |
| CN116343717B (zh) * | 2023-03-21 | 2024-07-09 | 惠科股份有限公司 | 显示设备及其驱动方法 |
| CN116863855A (zh) * | 2023-07-24 | 2023-10-10 | 云谷(固安)科技有限公司 | 显示面板的亮度补偿方法、装置、设备及存储介质 |
| CN117877430B (zh) * | 2024-02-29 | 2024-07-16 | 深圳市科达康光电科技有限公司 | 低功耗amoled显示屏驱动方法及系统 |
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| JP2006303630A (ja) * | 2005-04-15 | 2006-11-02 | Sony Corp | フレームレート変換装置、追越補償方法及び表示装置 |
| CN101044541A (zh) * | 2004-10-22 | 2007-09-26 | 阿德文泰克全球有限公司 | 对有源矩阵oled平板显示器中有源元件变化的补偿 |
| CN101194300A (zh) * | 2005-04-12 | 2008-06-04 | 伊格尼斯创新有限公司 | 补偿发光装置显示器的不均匀性的方法和系统 |
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| KR20060014213A (ko) * | 2004-08-10 | 2006-02-15 | 엘지.필립스 엘시디 주식회사 | 유기 전기 발광 소자의 구동 회로 및 이를 이용한 구동 방법 |
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| KR101188053B1 (ko) * | 2010-08-06 | 2012-10-05 | 한국과학기술원 | 유기 발광 다이오드 구동 장치 |
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2012
- 2012-10-22 CN CN201210404875.9A patent/CN102890913B/zh active Active
- 2012-11-02 US US13/807,714 patent/US9349312B2/en active Active
- 2012-11-02 WO PCT/CN2012/083944 patent/WO2014063384A1/zh not_active Ceased
- 2012-11-02 DE DE112012007035.6T patent/DE112012007035B4/de active Active
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| CN1886774B (zh) * | 2003-11-25 | 2010-08-04 | 全球Oled科技有限责任公司 | 具有老化补偿的oled显示器 |
| CN100483488C (zh) * | 2004-02-25 | 2009-04-29 | 三星电子株式会社 | 显示装置 |
| CN101044541A (zh) * | 2004-10-22 | 2007-09-26 | 阿德文泰克全球有限公司 | 对有源矩阵oled平板显示器中有源元件变化的补偿 |
| CN101194300A (zh) * | 2005-04-12 | 2008-06-04 | 伊格尼斯创新有限公司 | 补偿发光装置显示器的不均匀性的方法和系统 |
| JP2006303630A (ja) * | 2005-04-15 | 2006-11-02 | Sony Corp | フレームレート変換装置、追越補償方法及び表示装置 |
| US20080238911A1 (en) * | 2007-03-29 | 2008-10-02 | L.G. Philips Lcd Co., Ltd. | Apparatus and method for controlling picture quality of flat panel display |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112012007035B4 (de) | 2026-01-08 |
| CN102890913B (zh) | 2014-09-10 |
| DE112012007035T5 (de) | 2015-08-06 |
| CN102890913A (zh) | 2013-01-23 |
| US20140267444A1 (en) | 2014-09-18 |
| US9349312B2 (en) | 2016-05-24 |
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