CN110930946A - OLED driving system and OLED brightness compensation method - Google Patents
OLED driving system and OLED brightness compensation method Download PDFInfo
- Publication number
- CN110930946A CN110930946A CN201911132844.0A CN201911132844A CN110930946A CN 110930946 A CN110930946 A CN 110930946A CN 201911132844 A CN201911132844 A CN 201911132844A CN 110930946 A CN110930946 A CN 110930946A
- Authority
- CN
- China
- Prior art keywords
- oled
- compensation
- module
- compensation data
- brightness
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of El Displays (AREA)
- Electroluminescent Light Sources (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
An OLED driving system and a brightness compensation method of an OLED. The OLED driving system comprises a pixel circuit module, a look-up table, an attenuation degree calculation module, a compensation mode judgment module, a compensation data storage module, a compensation data calculation module and a compensation module, and is used for determining compensation data according to the relation between the brightness attenuation of the OLED and the cross voltage of the OLED and providing the compensation data to the pixel circuit module.
Description
[ technical field ] A method for producing a semiconductor device
The disclosure relates to the field of display technologies, and in particular, to an OLED driving system and a brightness compensation method for an OLED.
[ background of the invention ]
The display characteristics of the OLED display are not uniform due to process and process reasons, and De-Mura (uniformity compensation) is required. Specifically, during the display process, the TFT device and the OLED device of the OLED display may have characteristic drift, which may cause the problem of uneven display characteristics. Therefore, it is necessary to detect and compensate for the characteristic drift of the device.
However, the conventional detection compensation circuit mainly detects and compensates the characteristic drift of the TFT device in the AMOLED display, but lacks an effective scheme for detecting and compensating the OLED device.
[ summary of the invention ]
In order to solve the above-mentioned problems, an objective of the present disclosure is to provide an OLED driving system and a method for compensating luminance of an OLED, which provide better uniformity compensation through detection and compensation of an OLED device.
To achieve the above object, the present disclosure provides an OLED driving system, including: the device comprises a pixel circuit module, a look-up table, an attenuation degree calculation module, a compensation mode judgment module, a compensation data storage module, a compensation data calculation module and a compensation module. The pixel circuit module comprises OLEDs arranged in an array and corresponding pixel circuits for lighting the OLEDs. The look-up table is used for providing a relation between the brightness attenuation of the OLED and the voltage across the OLED. The attenuation degree calculation module is connected to the pixel circuit module and the look-up table, and is used for measuring the cross voltage of the OLED in the pixel circuit module and determining the brightness of the OLED according to the measured cross voltage look-up table. The compensation mode judging module is connected to the attenuation degree calculating module and used for comparing the brightness of the OLED with a preset brightness value to determine whether to perform compensation or not. The compensation data storage module is used for storing compensation data. The compensation data calculation module is connected to the compensation mode determination module and the compensation data storage module, and is used for receiving the instruction of the compensation mode determination module to recalculate the compensation data and updating the compensation data in the compensation data storage module. The compensation module is connected to the compensation data storage module and used for providing the compensation data in the compensation data storage module to the pixel circuit module for compensation.
In an embodiment of the OLED driving system, the compensation mode determining module is configured to send the instruction for recalculating the compensation data to the compensation data calculating module when the luminance of the OLED is less than the preset luminance value.
In an embodiment of the present disclosure, the predetermined brightness value is 80% of the original brightness.
In an embodiment of the OLED driving system, the compensation mode determining module is configured to send the instruction for recalculating the compensation data to the compensation data calculating module when the brightness of the OLED is reduced by 5% of an original brightness after the brightness of the OLED is smaller than the preset brightness value.
In an embodiment of the OLED driving system, the attenuation calculating module is configured to measure the voltage across the OLED in the pixel circuit module after the driving transistor in the pixel circuit module obtains compensation.
The present disclosure also provides a method for compensating brightness of an OLED, wherein the method includes: providing a pixel circuit module which comprises OLEDs arranged in an array and corresponding pixel circuits and is used for lighting the OLEDs; providing a look-up table comprising a relationship between a luminance decay of the OLED and a voltage across the OLED; measuring the anode voltage of the OLED of each pixel; finding out the brightness of the corresponding OLED in the look-up table according to the anode voltage; judging whether the brightness of the OLED is lower than a preset brightness value or not; if the brightness of the OLED is lower than the preset brightness value, recalculating the compensation data and updating the compensation data to a compensation data storage module, and if not, not recalculating the compensation data and not updating the compensation data storage module; and compensating the pixel circuit module according to the compensation data in the compensation data storage module.
In an embodiment of the present disclosure, the step of measuring the anode voltage of the OLED of each pixel is performed after the driving transistor in the pixel circuit module obtains compensation.
In an embodiment of the present disclosure, the compensation obtained by the driving transistor includes sub-threshold voltage drift compensation and carrier mobility drift compensation.
In an embodiment of the present disclosure, the predetermined brightness value is 80% of the original brightness.
In an embodiment of the present disclosure, after the brightness of the OLED is determined to be lower than the preset brightness value, when the brightness of the OLED decreases by 5% of the original brightness, the compensation data is recalculated and updated to the compensation data storage module
In the OLED driving system and the OLED brightness compensation method according to the embodiments of the present disclosure, the step of measuring the anode voltage of the OLED of each pixel is performed after the driving transistor in the pixel circuit module obtains compensation, so that a correct OLED cross voltage can be obtained, and the corresponding OLED brightness is found according to the look-up table to compensate the pixel circuit module, thereby providing a simple and effective OLED device detection and compensation scheme, and providing better display uniformity compensation.
[ description of the drawings ]
FIG. 1 is a block diagram illustrating an OLED driving system according to an embodiment of the present disclosure;
FIG. 2 is a flowchart illustrating a method for compensating brightness of an OLED according to another embodiment of the present disclosure; and
FIG. 3 shows a circuit diagram of a pixel circuit module according to an embodiment of the disclosure.
[ detailed description ] embodiments
In order to make the aforementioned and other objects, features and advantages of the present disclosure comprehensible, preferred embodiments accompanied with figures are described in detail below. Furthermore, directional phrases used in this disclosure, such as, for example, upper, lower, top, bottom, front, rear, left, right, inner, outer, lateral, peripheral, central, horizontal, lateral, vertical, longitudinal, axial, radial, uppermost or lowermost, etc., refer only to the orientation of the attached drawings. Accordingly, the directional terms used are used for the purpose of illustration and understanding of the present disclosure, and are not used to limit the present disclosure.
In the drawings, elements having similar structures are denoted by the same reference numerals.
Referring to fig. 1, the present disclosure provides an OLED driving system 100, including: the device comprises a pixel circuit module, a look-up table, an attenuation degree calculation module, a compensation mode judgment module, a compensation data storage module, a compensation data calculation module and a compensation module. The pixel circuit module comprises OLEDs arranged in an array and corresponding pixel circuits for lighting the OLEDs. The look-up table is used for providing a relation between the brightness attenuation of the OLED and the voltage across the OLED. The attenuation degree calculation module is connected to the pixel circuit module and the look-up table, and is used for measuring the cross voltage of the OLED in the pixel circuit module and determining the brightness of the OLED according to the measured cross voltage look-up table. The compensation mode judging module is connected to the attenuation degree calculating module and used for comparing the brightness of the OLED with a preset brightness value to determine whether to perform compensation or not. The compensation data storage module is used for storing compensation data. The compensation data calculation module is connected to the compensation mode determination module and the compensation data storage module, and is used for receiving the instruction of the compensation mode determination module to recalculate the compensation data and updating the compensation data in the compensation data storage module. The compensation module is connected to the compensation data storage module and used for providing the compensation data in the compensation data storage module to the pixel circuit module for compensation.
Specifically, the relationship between the luminance attenuation of the OLED and the voltage across the OLED is actually measured according to an experiment and is arranged into the look-up table to be searched by the attenuation degree calculation module.
Referring to fig. 3, specifically, taking the circuit architecture of 3T1C as an example, the pixel circuit module includes a plurality of pixel circuits 10, and the pixel circuits 10 include a driving transistor T1, a scan transistor T2, a bootstrap capacitor Cb, and a sense transistor Ts. When the scan signal Vscan is at a high level and the data signal Vdata is also at a high level, the transistors T2 and T1 are turned on, and the power voltage VDD is supplied to the OLED to emit light. If the sense control signal Vsen _ C is at a high level, the sense transistor Ts is turned on to transmit the potential at the point a to the sense signal Vsen. The present invention is not limited to the circuit architecture of 3T 1C. Other circuit architectures may also be suitable.
Referring to fig. 1, in an OLED driving system according to an embodiment of the present disclosure, the compensation mode determining module is configured to send the instruction for recalculating the compensation data to the compensation data calculating module when the luminance of the OLED is less than the preset luminance value.
In an embodiment of the present disclosure, the predetermined brightness value is 80% of the original brightness.
In an embodiment of the OLED driving system, the compensation mode determining module is configured to send the instruction for recalculating the compensation data to the compensation data calculating module when the brightness of the OLED is reduced by 5% of an original brightness after the brightness of the OLED is smaller than the preset brightness value.
In an embodiment of the OLED driving system of the present disclosure, the attenuation calculating module is configured to measure the voltage across the OLED in the pixel circuit module after the driving transistor T1 in the pixel circuit module obtains compensation.
Referring to fig. 3, in particular, the driving transistor T1 obtains compensation by, for example, adding a compensation voltage to the data signal Vdata to increase or decrease the data signal Vdata. When the driving transistor T1 is compensated, when the data signal Vdata provides a specific gray scale voltage, the stable specific current can be obtained at point a, and when the specific current flows through the OLED, the voltage across the OLED can represent the degree of brightness attenuation of the OLED, and the greater the voltage across the OLED, the higher the degree of attenuation.
Referring to fig. 2, the present disclosure also provides a method for compensating brightness of an OLED, wherein the method includes: step S10: providing a pixel circuit module, wherein the pixel circuit module comprises OLEDs arranged in an array and corresponding pixel circuits and is used for lighting the OLEDs; step S20: providing a look-up table, wherein the look-up table comprises a relationship between a luminance decay of the OLED and a voltage across the OLED; step S30: measuring the anode voltage of the OLED of each pixel; step S40: finding out the brightness of the corresponding OLED in the look-up table according to the anode voltage; step S50: judging whether the brightness of the OLED is lower than a preset brightness value or not; if the brightness of the OLED is lower than the preset brightness value, rows step S60: recalculating the compensation data and updating the compensation data to the compensation data storage module, if not, not performing step S60: recalculating the compensation data without updating the compensation data storage module; and step S70: and compensating the pixel circuit module according to the compensation data in the compensation data storage module.
In an embodiment of the present disclosure, the step of measuring the anode voltage of the OLED of each pixel is performed after the driving transistor in the pixel circuit module obtains compensation.
In an embodiment of the present disclosure, the compensation obtained by the driving transistor includes sub-threshold voltage drift compensation and carrier mobility drift compensation.
Referring to fig. 3, in particular, the driving transistor T1 obtains compensation by, for example, adding a compensation voltage to the data signal Vdata to increase or decrease the data signal Vdata. When the driving transistor T1 is compensated, when the data signal Vdata provides a specific gray scale voltage, the stable specific current can be obtained at point a, and when the specific current flows through the OLED, the voltage across the OLED can represent the degree of brightness attenuation of the OLED, and the greater the voltage across the OLED, the higher the degree of attenuation.
In an embodiment of the present disclosure, the predetermined brightness value is 80% of the original brightness.
In an embodiment of the present disclosure, after the brightness of the OLED is determined to be lower than the preset brightness value, when the brightness of the OLED decreases by 5% of the original brightness, the compensation data is recalculated and updated to the compensation data storage module.
In the OLED driving system and the OLED brightness compensation method according to the embodiments of the present disclosure, the step of measuring the anode voltage of the OLED of each pixel is performed after the driving transistor in the pixel circuit module obtains compensation, so that a correct OLED cross voltage can be obtained, and the corresponding OLED brightness is found according to the look-up table to compensate the pixel circuit module, thereby providing a simple and effective OLED device detection and compensation scheme, and providing better display uniformity compensation.
Although the disclosure has been shown and described with respect to one or more implementations, equivalent alterations and modifications will occur to others skilled in the art based upon a reading and understanding of this specification and the annexed drawings. The present disclosure includes all such modifications and alterations, and is limited only by the scope of the appended claims. In particular regard to the various functions performed by the above described components, the terms used to describe such components are intended to correspond, unless otherwise indicated, to any component which performs the specified function of the described component (e.g., that is functionally equivalent), even though not structurally equivalent to the disclosed structure which performs the function in the herein illustrated exemplary implementations of the specification. In addition, while a particular feature of the specification may have been disclosed with respect to only one of several implementations, such feature may be combined with one or more other features of the other implementations as may be desired and advantageous for a given or particular application. Furthermore, to the extent that the terms "includes," has, "" contains, "or variants thereof are used in either the detailed description or the claims, such terms are intended to be inclusive in a manner similar to the term" comprising.
The foregoing is merely a preferred embodiment of the present disclosure, and it should be noted that modifications and refinements may be made by those skilled in the art without departing from the principle of the present disclosure, and these modifications and refinements should also be construed as the protection scope of the present disclosure.
Claims (10)
1. An OLED drive system, comprising:
the pixel circuit module comprises OLEDs arranged in an array and corresponding pixel circuits and is used for lighting the OLEDs;
a look-up table to provide a relationship between the luminance decay of the OLED and the cross-voltage of the OLED;
an attenuation degree calculation module, connected to the pixel circuit module and the look-up table, for measuring the cross-voltage of the OLED in the pixel circuit module and determining the brightness of the OLED according to the measured cross-voltage look-up table;
a compensation mode determination module connected to the attenuation degree calculation module for comparing the brightness of the OLED with a preset brightness value to determine whether to perform compensation;
the compensation data storage module is used for storing compensation data;
the compensation data calculation module is connected to the compensation mode judgment module and the compensation data storage module and used for receiving the instruction of the compensation mode judgment module to recalculate the compensation data and updating the compensation data in the compensation data storage module; and
and the compensation module is connected to the compensation data storage module and used for providing the compensation data in the compensation data storage module to the pixel circuit module for compensation.
2. The OLED driving system according to claim 1, wherein the compensation mode determining module is configured to issue the instruction to recalculate the compensation data to the compensation data calculating module when the luminance of the OLED is less than the preset luminance value.
3. The OLED driving system claimed in claim 2, wherein the preset luminance value is 80% of the original luminance.
4. The OLED driving system according to claim 3, wherein the compensation mode determining module is configured to issue the instruction to recalculate the compensation data to the compensation data calculating module every 5% of an original brightness of the OLED after the brightness of the OLED is less than the preset brightness value.
5. The OLED driving system of claim 1, wherein the attenuation calculating module is configured to perform the voltage measurement of the OLED in the pixel circuit module after the compensation of the driving transistor in the pixel circuit module.
6. A method for compensating brightness of an OLED, the method comprising:
providing a pixel circuit module which comprises OLEDs arranged in an array and corresponding pixel circuits and is used for lighting the OLEDs;
providing a look-up table comprising a relationship between a luminance decay of the OLED and a voltage across the OLED;
measuring the anode voltage of the OLED of each pixel;
finding out the brightness of the corresponding OLED in the look-up table according to the anode voltage;
judging whether the brightness of the OLED is lower than a preset brightness value or not;
if the brightness of the OLED is lower than the preset brightness value, recalculating the compensation data and updating the compensation data to a compensation data storage module, and if not, not recalculating the compensation data and not updating the compensation data storage module; and
and compensating the pixel circuit module according to the compensation data in the compensation data storage module.
7. The method as claimed in claim 6, wherein the step of measuring the anode voltage of the OLED of each pixel is performed after the driving transistor in the pixel circuit module is compensated.
8. The method of claim 7, wherein the compensation obtained by the driving transistor comprises sub-threshold voltage drift compensation and carrier mobility drift compensation.
9. The method of claim 6, wherein the predetermined brightness value is 80% of the original brightness.
10. The method for luminance compensation of an OLED according to claim 6, wherein after the luminance of the OLED is determined to be lower than the preset luminance value, compensation data is recalculated and updated to a compensation data storage module every 5% of the original luminance of the OLED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911132844.0A CN110930946A (en) | 2019-11-19 | 2019-11-19 | OLED driving system and OLED brightness compensation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911132844.0A CN110930946A (en) | 2019-11-19 | 2019-11-19 | OLED driving system and OLED brightness compensation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110930946A true CN110930946A (en) | 2020-03-27 |
Family
ID=69853485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911132844.0A Pending CN110930946A (en) | 2019-11-19 | 2019-11-19 | OLED driving system and OLED brightness compensation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110930946A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111883054A (en) * | 2020-07-28 | 2020-11-03 | 华兴源创(成都)科技有限公司 | Compensation method and compensation device of display panel |
| WO2021196295A1 (en) * | 2020-03-31 | 2021-10-07 | 深圳市华星光电半导体显示技术有限公司 | Life attenuation compensation system and compensation method for oled device |
| CN114038391A (en) * | 2021-06-08 | 2022-02-11 | 重庆康佳光电技术研究院有限公司 | Pixel compensation circuit system and pixel compensation method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102257554A (en) * | 2008-12-18 | 2011-11-23 | 全球Oled科技有限责任公司 | Digital-drive electroluminescent display with aging compensation |
| CN104575382A (en) * | 2015-01-06 | 2015-04-29 | 昆山国显光电有限公司 | Aging compensation system and method for OLED component |
| CN106504707A (en) * | 2016-10-14 | 2017-03-15 | 深圳市华星光电技术有限公司 | OLED pixel mixed compensation circuit and mixed compensation method |
| CN106847176A (en) * | 2017-03-02 | 2017-06-13 | 西安交通大学 | A kind of OLED life-spans improve algorithm and device |
| CN106991965A (en) * | 2017-05-08 | 2017-07-28 | 深圳市华星光电技术有限公司 | A kind of compensation of ageing system and method for OLED |
| CN107039004A (en) * | 2017-06-08 | 2017-08-11 | 深圳市华星光电技术有限公司 | The aging compensation approach of AMOLED display panels |
| CN107731171A (en) * | 2017-11-29 | 2018-02-23 | 合肥京东方光电科技有限公司 | Image element circuit and its control method, display base plate, display device |
| US20180075802A1 (en) * | 2016-09-12 | 2018-03-15 | Novatek Microelectronics Corp. | Integrated circuit for driving display panel and method thereof |
| WO2020015317A1 (en) * | 2018-07-17 | 2020-01-23 | 深圳市华星光电半导体显示技术有限公司 | Compensation system and compensation method for organic light-emitting diode display module |
-
2019
- 2019-11-19 CN CN201911132844.0A patent/CN110930946A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102257554A (en) * | 2008-12-18 | 2011-11-23 | 全球Oled科技有限责任公司 | Digital-drive electroluminescent display with aging compensation |
| CN104575382A (en) * | 2015-01-06 | 2015-04-29 | 昆山国显光电有限公司 | Aging compensation system and method for OLED component |
| US20180075802A1 (en) * | 2016-09-12 | 2018-03-15 | Novatek Microelectronics Corp. | Integrated circuit for driving display panel and method thereof |
| CN106504707A (en) * | 2016-10-14 | 2017-03-15 | 深圳市华星光电技术有限公司 | OLED pixel mixed compensation circuit and mixed compensation method |
| CN106847176A (en) * | 2017-03-02 | 2017-06-13 | 西安交通大学 | A kind of OLED life-spans improve algorithm and device |
| CN106991965A (en) * | 2017-05-08 | 2017-07-28 | 深圳市华星光电技术有限公司 | A kind of compensation of ageing system and method for OLED |
| CN107039004A (en) * | 2017-06-08 | 2017-08-11 | 深圳市华星光电技术有限公司 | The aging compensation approach of AMOLED display panels |
| CN107731171A (en) * | 2017-11-29 | 2018-02-23 | 合肥京东方光电科技有限公司 | Image element circuit and its control method, display base plate, display device |
| WO2020015317A1 (en) * | 2018-07-17 | 2020-01-23 | 深圳市华星光电半导体显示技术有限公司 | Compensation system and compensation method for organic light-emitting diode display module |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021196295A1 (en) * | 2020-03-31 | 2021-10-07 | 深圳市华星光电半导体显示技术有限公司 | Life attenuation compensation system and compensation method for oled device |
| CN111883054A (en) * | 2020-07-28 | 2020-11-03 | 华兴源创(成都)科技有限公司 | Compensation method and compensation device of display panel |
| CN114038391A (en) * | 2021-06-08 | 2022-02-11 | 重庆康佳光电技术研究院有限公司 | Pixel compensation circuit system and pixel compensation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10297201B2 (en) | Compensation method of cathode voltage drop of organic light emitting diode display device and pixel driving circuit | |
| US9734765B2 (en) | Display device and driving method thereof | |
| US8749457B2 (en) | Organic electroluminescence display device manufacturing method and organic electroluminescence display device | |
| US8089477B2 (en) | Display device and method for controlling the same | |
| CN110930946A (en) | OLED driving system and OLED brightness compensation method | |
| KR101272367B1 (en) | Calibration System of Image Display Device Using Transfer Functions And Calibration Method Thereof | |
| TWI708231B (en) | Organic light-emitting display device and method of driving the same | |
| KR101682690B1 (en) | Pixel and Organic Light Emitting Display Device Using the same | |
| US20180090062A1 (en) | Display device | |
| TW201727613A (en) | Display device and optical compensation method of a display device | |
| TW201621864A (en) | Organic light-emitting display device and driving method thereof | |
| US9330599B2 (en) | Organic light emitting display capable of compensating for noise output from a power source supply unit | |
| KR101997766B1 (en) | Device for sensing control of organic light emitting display device and method for sensing using the same | |
| KR20140083185A (en) | Organic light emitting display device and method for driving the same | |
| KR102282302B1 (en) | Display apparatus and controlling method thereof | |
| KR102556467B1 (en) | Organic light emitting display device and method for setting gamma reference voltages thereof | |
| JP4534052B2 (en) | Inspection method for organic EL substrate | |
| JP2010134169A (en) | Active matrix type display apparatus, inspecting method and method for manufacturing such display apparatus | |
| KR20170003215A (en) | Organic light emitting display device and driving method thereof | |
| US9601046B2 (en) | Brightness correcting system and method of correcting brightness | |
| KR101993830B1 (en) | Method for sensing organic light emitting display device | |
| KR20150055155A (en) | Compensation Method for Degradation of Organic Light Emitting Display Device | |
| KR20170081049A (en) | Organic light emitting display device and method0 for compensating oled thereof | |
| US10096278B2 (en) | Method of driving organic light emitting display device | |
| KR101126348B1 (en) | Oled |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200327 |