CN108831373A - A method of avoid OLED from burning phenomenon - Google Patents
A method of avoid OLED from burning phenomenon Download PDFInfo
- Publication number
- CN108831373A CN108831373A CN201810611064.3A CN201810611064A CN108831373A CN 108831373 A CN108831373 A CN 108831373A CN 201810611064 A CN201810611064 A CN 201810611064A CN 108831373 A CN108831373 A CN 108831373A
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- China
- Prior art keywords
- frame picture
- pixel value
- oled
- output
- burning phenomenon
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- 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.)
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Links
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000010586 diagram Methods 0.000 description 4
- 230000007774 longterm Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000002102 hyperpolarization Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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]
-
- 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
- G09G2320/0295—Improving the quality of display appearance by monitoring one or more pixels in the display panel, e.g. by monitoring a fixed reference pixel by monitoring each display pixel
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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 invention discloses a kind of methods for avoiding OLED from burning phenomenon, including：The nth frame picture of relatively more current display output and each pixel of the N+K frame picture newly inputted, when pixel value is identical, otherwise which exports the pixel value of N+K frame picture, updates display output.The method of the present invention is simple, it is easy to accomplish, OLED ghost can be effectively eliminated.
Description
Technical field
The present invention relates to OLED field of display technology more particularly to a kind of methods for avoiding OLED from burning phenomenon.
Background technique
OLED the phenomenon that there are screen ghosts, when still picture too long, OLED material can go bad because of hyperpolarization, make
At image residue and can not reply.Long-term image is static, and comparison of light and shade is strong in picture, after screen switching, originally
Bright part still suffers from part shadow and remains in picture.Slight situation, this image retention can gradually subside, but if mistake
Still picture or long-term accumulated are played for a long time, will lead to permanent damage, it is irreversible.Currently in order to preventing OLED TV from occurring
Permanent screen damage needs to avoid allowing its long-time from showing tableaux.
Summary of the invention
For the problem of prior art deficiency, the present invention provides a kind of method for avoiding OLED from burning phenomenon, using frame with
The difference of picture eliminates the duplicate part of picture between frame.
To achieve the above object, the technical scheme is that：A method of avoid OLED from burning phenomenon, including：Than
The nth frame picture of relatively current display output and each pixel of the N+K frame picture newly inputted, when pixel value is identical, the picture
Otherwise plain output black pixel value exports the pixel value of N+K frame picture, update display output.
Further, it specifically includes：
Step S1：Nth frame picture is inputted, is stored it in DDR memory；
Step S2：Output display nth frame picture；
Step S3：Intermediate K-1 frame does not operate, and inputs N+K frame picture；
Step S4：Compare the nth frame picture in N+K frame picture and DDR memory, individual element is compared, and works as pixel value
When identical, otherwise which exports the pixel value of N+K frame picture；
Step S5：Update display output.
Further, when just booting, K is set as 6000, and as the available machine time increases, K is smaller and smaller.
Compared with prior art, the present invention has beneficial effect：
（1）Method is simple, it is easy to accomplish, it can be built into SOC software, and the SOC (ARM CPU) carried by TV is held with DDR
Row, can also plug-in FPGA processing, and former sequential control circuit（T-con）It can retain, cost is relatively low；
（2）The DDR memory headroom of 1 frame is only taken up, it can be achieved that property is high.
Detailed description of the invention
Fig. 1 is the flow diagram of one embodiment of the invention；
Fig. 2 is demonstration schematic diagram of the invention；
Fig. 3 is the display device structure schematic diagram of one embodiment of the invention.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and embodiments.
As shown in Figure 1, a kind of method for avoiding OLED from burning phenomenon, including：The nth frame picture of relatively more current display output
Each pixel of the N+K frame picture newly inputted, when pixel value is identical, the pixel output black pixel value, otherwise, output
The pixel value of N+K frame picture updates display output.
In the present embodiment, it specifically includes：
Step S1：Nth frame picture is inputted, is stored it in DDR memory；
Step S2：Output display nth frame picture；
Step S3：Intermediate K-1 frame does not operate, and inputs N+K frame picture；
Step S4：Compare the nth frame picture in N+K frame picture and DDR memory, individual element is compared, and works as pixel value
When identical, otherwise which exports the pixel value of N+K frame picture；
Step S5：Update display output.
In the present embodiment, when just booting, K is settable larger, such as is set as 6000, as the available machine time increases, K
It is smaller and smaller, for example, booting more than 1 hour after, K is set as 200 or less.
As shown in Fig. 2, first storing a frame picture to DDR memory, and exports and show the frame picture, newer frame picture
Logo can be partially removed in conjunction with new picture is exported with duplicate, and then reduced with that frame picture in DDR memory
The risk of OLED ghost.Fig. 2 black i.e. not display portion, OLED is not bright, and red is new frame picture pixel.
Display device structure schematic diagram as shown in Figure 3, newly-increased FPGA module are spent less than 30TBD, and the present invention can be realized
Purpose.
The above are preferred embodiments of the present invention, all any changes made according to the technical solution of the present invention, and generated function is made
When with range without departing from technical solution of the present invention, all belong to the scope of protection of the present invention.
Claims (3)
1. a kind of method for avoiding OLED from burning phenomenon, which is characterized in that including：The nth frame picture of relatively more current display output
Each pixel of the N+K frame picture newly inputted, when pixel value is identical, the pixel output black pixel value, otherwise, output
The pixel value of N+K frame picture updates display output.
2. a kind of method for avoiding OLED from burning phenomenon according to claim 1, which is characterized in that specifically include：
Step S1：Nth frame picture is inputted, is stored it in DDR memory；
Step S2：Output display nth frame picture；
Step S3：Intermediate K-1 frame does not operate, and inputs N+K frame picture；
Step S4：Compare the nth frame picture in N+K frame picture and DDR memory, individual element is compared, and works as pixel value
When identical, otherwise which exports the pixel value of N+K frame picture；
Step S5：Update display output.
3. a kind of method for avoiding OLED from burning phenomenon according to claim 1 or 2, which is characterized in that just when booting, K
6000 are set as, as the available machine time increases, K is smaller and smaller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810611064.3A CN108831373A (en) | 2018-06-14 | 2018-06-14 | A method of avoid OLED from burning phenomenon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810611064.3A CN108831373A (en) | 2018-06-14 | 2018-06-14 | A method of avoid OLED from burning phenomenon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108831373A true CN108831373A (en) | 2018-11-16 |
Family
ID=64141602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810611064.3A Pending CN108831373A (en) | 2018-06-14 | 2018-06-14 | A method of avoid OLED from burning phenomenon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108831373A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101656063A (en) * | 2008-08-20 | 2010-02-24 | 泰德富华科技(深圳)有限公司 | Device and method for preventing display equipment from forming incomplete images |
| CN102402939A (en) * | 2011-12-31 | 2012-04-04 | 四川虹欧显示器件有限公司 | Plasma display and control method and device thereof |
| US20140368490A1 (en) * | 2012-01-30 | 2014-12-18 | Sharp Kabushiki Kaisha | Drive control device, display device including the same, and drive control method |
| KR20160080768A (en) * | 2014-12-30 | 2016-07-08 | 엘지디스플레이 주식회사 | Display Device And Driving Method for the Same |
| CN106683613A (en) * | 2017-01-16 | 2017-05-17 | 努比亚技术有限公司 | Display method and terminal |
| CN107665665A (en) * | 2017-10-27 | 2018-02-06 | 康佳集团股份有限公司 | A kind of guard method of OLED display screen, intelligent television and storage medium |
-
2018
- 2018-06-14 CN CN201810611064.3A patent/CN108831373A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101656063A (en) * | 2008-08-20 | 2010-02-24 | 泰德富华科技(深圳)有限公司 | Device and method for preventing display equipment from forming incomplete images |
| CN102402939A (en) * | 2011-12-31 | 2012-04-04 | 四川虹欧显示器件有限公司 | Plasma display and control method and device thereof |
| US20140368490A1 (en) * | 2012-01-30 | 2014-12-18 | Sharp Kabushiki Kaisha | Drive control device, display device including the same, and drive control method |
| KR20160080768A (en) * | 2014-12-30 | 2016-07-08 | 엘지디스플레이 주식회사 | Display Device And Driving Method for the Same |
| CN106683613A (en) * | 2017-01-16 | 2017-05-17 | 努比亚技术有限公司 | Display method and terminal |
| CN107665665A (en) * | 2017-10-27 | 2018-02-06 | 康佳集团股份有限公司 | A kind of guard method of OLED display screen, intelligent television and storage medium |
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| 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: 20181116 |