CN107068056A - AMOLED mixed compensation methods - Google Patents
AMOLED mixed compensation methods Download PDFInfo
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- CN107068056A CN107068056A CN201710465749.7A CN201710465749A CN107068056A CN 107068056 A CN107068056 A CN 107068056A CN 201710465749 A CN201710465749 A CN 201710465749A CN 107068056 A CN107068056 A CN 107068056A
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
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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)
Abstract
The present invention relates to a kind of AMOLED mixed compensations method.The AMOLED mixed compensation methods include：Pixel light emission is divided into n sub- areas, every sub- area is correspondingly provided with corresponding drive circuit, one frame period was divided into m subframe by the drive circuit of all sub- areas by identical signal, and m, n are that the display time ratio between the natural number more than or equal to 2, each subframe is 1：21：……：2M-2：2M-1, the area ratio between each sub- area is 1:21：……：2N-2：2N-1；By setting the dispaly state of each subframe and the dispaly state of each sub- area in the frame period of pixel light emission area one, realize that m × n positions GTG in pixel light emission area is shown.The AMOLED mixed compensations method of the present invention provides a kind of binding time than driving the new compensation way with area than driving, it is possible to achieve 8bit or higher bit number GTGs are shown, improve the practicality of digital drive.
Description
Technical field
The present invention relates to field of liquid crystal, more particularly to a kind of AMOLED mixed compensations method.
Background technology
Organic Light Emitting Diode (OLED) display device has self-luminous, and driving voltage is low, and luminous efficiency is high, the response time
It is short, many advantages, such as temperature in use scope is wide, it is the display device for most having development potentiality to be known as by industry.
OLED display, which installs type of drive, can be divided into passive matrix OLED (PMOLED) and active array type
The major classes of OLED (AMOLED) two, wherein, AMOLED has the sub-pixel arranged in array, belongs to active display type, lights
Efficiency is high, is generally used for the large scale display device of fine definition.But due to the influence in terms of processing procedure, material, OLED is shown
The brightness uniformity of device is not good, and this is always to influence the major issue of displayer development.
Referring to Fig. 1, it drives schematic diagram for the 8bit times ratio of existing digital compensation circuit, and wherein T represents the display cycle,
T represents the addressing cycle.To realize that 8bit GTGs are shown, it is necessary to be divided into a complete frame period using addressing cycle t1~t8
For eight display cycles of T1~T8, for digital compensation circuit, each display cycle can have bright dark two states, so
By the bright dark state for setting each display cycle, you can to realize the 8bit (2 in a frame period8) GTG is shown, but reality
Because the addressing cycle is too short in, IC reading speeds are limited, it is difficult to realize that 8bit GTGs are shown.
Referring to Fig. 2, it shows area than driving schematic diagram for the 8bit of existing digital compensation circuit.Area ratio is driven through
Control the area of luminous component to represent gray scale, by the way that a pixel is divided into multiple sub-pixels, and control light emitting sub-pixel
Number or area show to perform gray scale.It is 1 that pixel light emission area is pressed into area score in Fig. 2:2:22:23:24:25:26:27Eight
Sub- area, every sub- area can have bright dark two states, so the bright dark state by setting every sub- area, you can with
The 8bit (2 in whole pixel light emission area8) GTG is shown, but elemental area is limited in practical application, it is difficult to realize 8bit GTGs
Display.
Therefore, although the problem of existing digital compensation circuit can be very good to solve brightness of display screen uniformity, it is but single
One time is more limited than type of drive IC (chip) reading speed, and area is more limited than type of drive elemental area, is all difficult to
8bit GTGs (8, i.e. 256 GTGs) are shown, cause the application of digital drive compensation way to be limited.
The content of the invention
Therefore, it is an object of the invention to provide a kind of AMOLED mixed compensations method, 8bit or higher bit numbers ash is realized
Rank shows.
To achieve the above object, the present invention provides a kind of AMOLED mixed compensations method, including：Pixel light emission is divided into
N sub- areas, every sub- area is correspondingly provided with corresponding drive circuit, and the drive circuit of all sub- areas is believed by identical grid
Number a frame period is divided into m subframe, m, n are that the display time ratio between the natural number more than or equal to 2, each subframe is 1：
21：……：2M-2：2M-1, the area ratio between each sub- area is 1:21：……：2N-2：2N-1；By setting pixel light emission area
The dispaly state and the dispaly state of each sub- area of each subframe, realize m × n positions GTG in pixel light emission area in one frame period
Display.
Wherein, m is 5, and the display time ratio between each subframe is 1：2：4：8：16.
Wherein, n is 2, and the area ratio between each sub- area is 1:2.
Wherein, m is that 5, n is 2, realizes that 10 GTGs in pixel light emission area are shown.
Wherein, the drive circuit is 2T1C drive circuits.
Wherein, n is 2, and the 2T1C drive circuits of first sub- area include：
Input first is counted respectively for first film transistor (T11), its grid input signal (Gate), source electrode and drain electrode
It is believed that the grid of number (Data1) and the second thin film transistor (TFT) of connection (T12)；
Second thin film transistor (TFT) (T12), its source electrode and drain electrode connect respectively the first light emitting diode (OLED1) anode and
Constant pressure high potential (VDD)；
First electric capacity (C11), its two ends connect respectively second thin film transistor (TFT) (T12) grid and this first luminous two
The anode of pole pipe (OLED1)；
First light emitting diode (OLED1), its negative electrode connection constant pressure low potential (VSS).
Wherein, the 2T1C drive circuits of second sub- area include：
Input second is counted respectively for 3rd thin film transistor (TFT) (T21), its grid input signal (Gate), source electrode and drain electrode
It is believed that the grid of number (Data2) and the 4th thin film transistor (TFT) (T22) of connection；
4th thin film transistor (TFT) (T22), its source electrode and drain electrode connect respectively the second light emitting diode (OLED2) anode and
Constant pressure high potential (VDD)；
Second electric capacity (C21), its two ends connect respectively the 4th thin film transistor (TFT) (T22) grid and this second luminous two
The anode of pole pipe (OLED2)；
Second light emitting diode (OLED2), its negative electrode connection constant pressure low potential (VSS).
Wherein, this method is the AMOLED mixed compensation methods of AMOLED display panels.
To sum up, AMOLED mixed compensations method of the invention provides a kind of binding time than driving and area than driving
New compensation way, it is possible to achieve 8bit or higher bit number GTGs are shown, improve the practicality of digital drive.
Brief description of the drawings
Below in conjunction with the accompanying drawings, it is described in detail by the embodiment to the present invention, technical scheme will be made
And other beneficial effects are apparent.
In accompanying drawing,
Fig. 1 drives schematic diagram for the 8bit times ratio of existing digital compensation circuit；
Fig. 2 shows area than driving schematic diagram for the 8bit of existing digital compensation circuit；
Fig. 3 is the schematic diagram of the preferred embodiment of AMOLED mixed compensations method one of the present invention.
Embodiment
Pixel light emission is divided into n sub- areas by the present invention, and every sub- area is correspondingly provided with corresponding drive circuit, owned
One frame period was divided into m subframe by the drive circuit of sub- area by identical signal, and m, n are the natural number more than or equal to 2,
Display time ratio between each subframe is 1：21：……：2M-2：2M-1, the area ratio between each sub- area is 1:
21：……：2N-2：2N-1；By setting the dispaly state of each subframe in the frame period of pixel light emission area one and each sub- area
Dispaly state, realizes that m × n positions GTG in pixel light emission area is shown.The invention provides new A MOLED mixed compensation modes, carry
The high grey exponent number of Display panel, it is adaptable to Display panel industry.
Referring to Fig. 3, it is the schematic diagram of the preferred embodiment of AMOLED mixed compensations method one of the present invention.The preferred embodiment
In, m is 5, and the display time ratio between each subframe is 1：2：4：8：16, T represent the display cycle, and t represents the addressing cycle；N is
2, the area ratio between each sub- area is 1:2, two sub- areas represent that numeral 1 and 2 is represented with the grid filled a little respectively
Area ratio between two sub- areas.5 sub- areas of subframe+2 of time, realize (the 2 of pixel light emission area5)2=10bit
(position) GTG is shown.
In this preferred embodiment, drive circuit is specially 2T1C drive circuits.Two groups of 2T1C drive circuits are respectively：
Thin film transistor (TFT) T11, its grid input signal Gate, source electrode and drain electrode difference input data signal Data1
With connection thin film transistor (TFT) T12 grid；Thin film transistor (TFT) T12, its source electrode and drain electrode difference connecting luminous diode OLED1's
Anode and constant pressure high potential VDD；Electric capacity C11, its two ends connect thin film transistor (TFT) T12 grid and light emitting diode respectively
OLED1 anode；Light emitting diode OLED1, its negative electrode connection constant pressure low potential VSS；
Thin film transistor (TFT) T21, its grid input signal Gate, source electrode and drain electrode difference input data signal Data2
With connection thin film transistor (TFT) T22 grid；Thin film transistor (TFT) T22, its source electrode and drain electrode difference connecting luminous diode OLED2's
Anode and constant pressure high potential VDD；Electric capacity C21, its two ends connect thin film transistor (TFT) T22 grid and light emitting diode respectively
OLED2 anode；Light emitting diode OLED2, negative electrode connection constant pressure low potential VSS.
The present invention realizes the time than driving the combination with area than type of drive.One frame is divided into by 2T1C circuits aobvious
It is 16 to show time ratio:8:4:2:15 subframes, by the way that pixel light emission is divided into 2:1 two sub- areas, both combine can be with
Realize (25)2GTG, i.e. 10bit are shown.A frame period can be divided into multiple subframes in IC reading speed allowed bands, with
And pixel light emission divided into many sub- areas in elemental area allowed band, the final GTG for realizing more multiclass is shown.Can
The application of digital compensation circuit is widened, AMOLED display panels are can be applied to；Its image element circuit, layout design mode have
Universality.
To sum up, AMOLED mixed compensations method of the invention provides a kind of binding time than driving and area than driving
New compensation way, it is possible to achieve 8bit or higher bit number GTGs are shown, improve the practicality of digital drive.
It is described above, for the person of ordinary skill of the art, can be with technique according to the invention scheme and technology
Other various corresponding changes and deformation are made in design, and all these changes and deformation should all belong to appended right of the invention
It is required that protection domain.
Claims (8)
1. a kind of AMOLED mixed compensations method, it is characterised in that including：Pixel light emission is divided into n sub- areas, per height
Area is correspondingly provided with corresponding drive circuit, and a frame period is divided into by the drive circuit of all sub- areas by identical signal
M subframe, m, n are that the display time ratio between the natural number more than or equal to 2, each subframe is 1：21：……：2M-2：2M-1, respectively
Area ratio between individual sub- area is 1:21：……：2N-2：2N-1；By setting each subframe in the frame period of pixel light emission area one
Dispaly state and each sub- area dispaly state, realize that m × n positions GTG in pixel light emission area is shown.
2. AMOLED mixed compensations method as claimed in claim 1, it is characterised in that m is 5, the display between each subframe
Time ratio is 1：2：4：8：16.
3. the face between AMOLED mixed compensations method as claimed in claim 1, it is characterised in that n is 2, each sub- area
Product is than being 1:2.
4. AMOLED mixed compensations method as claimed in claim 1, it is characterised in that m is that 5, n is 2, realizes pixel light emission area
10 GTGs show.
5. AMOLED mixed compensations method as claimed in claim 1, it is characterised in that the drive circuit is that 2T1C drives electricity
Road.
6. AMOLED mixed compensations method as claimed in claim 5, it is characterised in that n is 2, the 2T1C of first sub- area
Drive circuit includes：
First film transistor (T11), its grid input signal (Gate), source electrode and drain electrode input the first data letter respectively
Number (Data1) and the second thin film transistor (TFT) of connection (T12) grid；
Second thin film transistor (TFT) (T12), its source electrode and drain electrode connect the anode and constant pressure of the first light emitting diode (OLED1) respectively
High potential (VDD)；
First electric capacity (C11), its two ends connect the grid and first light emitting diode of second thin film transistor (TFT) (T12) respectively
(OLED1) anode；
First light emitting diode (OLED1), its negative electrode connection constant pressure low potential (VSS).
7. AMOLED mixed compensations method as claimed in claim 6, it is characterised in that the 2T1C driving electricity of second sub- area
Road includes：
3rd thin film transistor (TFT) (T21), its grid input signal (Gate), source electrode and drain electrode input the second data letter respectively
Number (Data2) and the grid for connecting the 4th thin film transistor (TFT) (T22)；
4th thin film transistor (TFT) (T22), its source electrode and drain electrode connect the anode and constant pressure of the second light emitting diode (OLED2) respectively
High potential (VDD)；
Second electric capacity (C21), its two ends connect the grid and second light emitting diode of the 4th thin film transistor (TFT) (T22) respectively
(OLED2) anode；
Second light emitting diode (OLED2), its negative electrode connection constant pressure low potential (VSS).
8. AMOLED mixed compensations method as claimed in claim 1, it is characterised in that this method is AMOLED display panels
AMOLED mixed compensation methods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710465749.7A CN107068056A (en) | 2017-06-19 | 2017-06-19 | AMOLED mixed compensation methods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710465749.7A CN107068056A (en) | 2017-06-19 | 2017-06-19 | AMOLED mixed compensation methods |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107068056A true CN107068056A (en) | 2017-08-18 |
Family
ID=59594219
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710465749.7A Withdrawn CN107068056A (en) | 2017-06-19 | 2017-06-19 | AMOLED mixed compensation methods |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109658866A (en) * | 2019-03-04 | 2019-04-19 | 上海大学 | A kind of high density pixel-driving circuit and its driving method |
| CN110992900A (en) * | 2019-12-17 | 2020-04-10 | 深圳市华星光电半导体显示技术有限公司 | Liquid crystal display screen, backlight circuit and backlight driving method thereof |
| CN111798804A (en) * | 2020-07-07 | 2020-10-20 | Tcl华星光电技术有限公司 | Active matrix backlight module and driving method thereof |
| CN112201196A (en) * | 2019-07-08 | 2021-01-08 | 群创光电股份有限公司 | Method for presenting gray scale by using sub-pixels of display and display |
| CN113327540A (en) * | 2021-06-01 | 2021-08-31 | 成都辰显光电有限公司 | Display panel, driving method thereof and display device |
| WO2022135102A1 (en) * | 2020-12-23 | 2022-06-30 | 成都辰显光电有限公司 | Gamma debugging method and gamma debugging device for display panel |
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| CN101083052A (en) * | 2006-05-31 | 2007-12-05 | 株式会社半导体能源研究所 | Display device, driving method of display device, and electronic appliance |
| CN102063865A (en) * | 2005-07-04 | 2011-05-18 | 株式会社半导体能源研究所 | Display device, electronic device and method of driving display device |
-
2017
- 2017-06-19 CN CN201710465749.7A patent/CN107068056A/en not_active Withdrawn
Patent Citations (4)
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| JP2000206922A (en) * | 1999-01-14 | 2000-07-28 | Sharp Corp | Display device |
| US20010022565A1 (en) * | 2000-03-10 | 2001-09-20 | Hajime Kimura | Electronic device and method of driving electronic device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109658866A (en) * | 2019-03-04 | 2019-04-19 | 上海大学 | A kind of high density pixel-driving circuit and its driving method |
| CN112201196A (en) * | 2019-07-08 | 2021-01-08 | 群创光电股份有限公司 | Method for presenting gray scale by using sub-pixels of display and display |
| CN110992900A (en) * | 2019-12-17 | 2020-04-10 | 深圳市华星光电半导体显示技术有限公司 | Liquid crystal display screen, backlight circuit and backlight driving method thereof |
| CN111798804A (en) * | 2020-07-07 | 2020-10-20 | Tcl华星光电技术有限公司 | Active matrix backlight module and driving method thereof |
| WO2022135102A1 (en) * | 2020-12-23 | 2022-06-30 | 成都辰显光电有限公司 | Gamma debugging method and gamma debugging device for display panel |
| CN113327540A (en) * | 2021-06-01 | 2021-08-31 | 成都辰显光电有限公司 | Display panel, driving method thereof and display device |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20171016 Address after: 518132 No. 9-2 Ming Avenue, Gongming street, Guangming District, Guangdong, Shenzhen Applicant after: Shenzhen Huaxing photoelectric semiconductor display technology Co., Ltd. Address before: 518132 9-2, Guangming Road, Guangming New District, Guangdong, Shenzhen Applicant before: Shenzhen Huaxing Optoelectronic Technology Co., Ltd. |
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Application publication date: 20170818 |
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