CN101201993B - Method and device for desalination of plasma display screen residual photo - Google Patents
Method and device for desalination of plasma display screen residual photo Download PDFInfo
- Publication number
- CN101201993B CN101201993B CN 200710166017 CN200710166017A CN101201993B CN 101201993 B CN101201993 B CN 101201993B CN 200710166017 CN200710166017 CN 200710166017 CN 200710166017 A CN200710166017 A CN 200710166017A CN 101201993 B CN101201993 B CN 101201993B
- Authority
- CN
- China
- Prior art keywords
- plasma display
- desalination
- display screen
- pixel
- residual photo
- 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.)
- Active
Links
Images
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a method for desalinating screen image retention of a plasma display and a device thereof, relating to a screen maintenance method and a device. When watching pictures for a long time on the plasma displays of the prior art, the image retention remains on the screen in case a picture at one place on the screen stands for a long time; therefore, the invention is invented for solving the problem. The method provided by the embodiment of the invention comprises the steps of: receiving displayed color values of pixel on the plasma display; taking the displayed color reserve values of the pixel; outputting the displayed color reserve values of the pixel. The invention is applicable for the plasma display and can desalinate the image retention left on the plasma display screen.
Description
Technical field
The present invention relates to a kind of screen maintaining method and device, particularly a kind of method and apparatus of desalination of plasma display screen residual photo.
Background technology
The principle of work of plasma display is: on display screen, install number in 100,000 plasmatron as luminophor (pixel), described plasmatron inside is full of inert gases such as helium, neon, each plasmatron has two glass electrodes, scribbles three primary colors fluorescent powder on one of them glass electrode; When between two glass electrodes of described plasmatron, increasing piezoelectricity, can cause the noble gas discharge in the described plasmatron, produce plasma; This plasma produces ultraviolet ray, and excites the described glass electrode that scribbles three primary colors fluorescent powder to send visible light, and this visible light is mixed by the three primary colours of different components.Each plasmatron is exactly the pixel of our said plasma display, the picture that the plasma display that we see is shown, and " luminous point " that is formed by these plasmatrons compiles and forms exactly.
Because plasma display has above-mentioned principle of work, so when the user uses plasma display to watch still image for a long time, can make and stay residual shadow on the described plasma display, for example: after the user uses plasma TV to watch the program of a certain channel for a long time, can stay the residual shadow of this TV channel station mark in the upper left corner of described plasma TV screen.Cause the main cause that stays residual shadow on the plasma display screen to be: when plasma display shows still image for a long time, can make its local plasmatron launch the overlong time of certain color of light (ruddiness, blue light or green glow etc.), cause the three primary colors fluorescent powder on this plasmatron aging, cause its luminescence efficiency to reduce, thereby on plasma display, stay residual shadow.
In order to address the above problem the method that prior art provides a kind of pixel to move.When described plasma display shows that a period of time is (for example: 3 minutes behind) the rest image, this plasma display calls described pixel moving method automatically, make its all pixels move a pixel left or to the right at random, thereby played the effect that prevents from plasma display screen, to stay residual shadow.But the method that this pixel moves implements very complicated, need write a large amount of programs; And, when calling the method that this pixel intelligence moves, need take a large amount of internal memories, this just makes described plasma display need use jumbo memory chip when producing, the problem that has caused the manufacturing cost of described plasma display to improve.
Summary of the invention
The invention provides a kind of method that realizes simple desalination of plasma display screen residual photo, can desalinate the residual shadow that stays on the plasma display screen effectively by this method.
The method of desalination of plasma display screen residual photo provided by the invention comprises the steps:
Start the desalination of plasma display screen residual photo function;
Receive the color value to be shown of pixel on the plasma display;
Color value negate to be shown with described pixel;
Export the color value to be shown after the described pixel negate;
Close described desalination of plasma display screen residual photo function.
The method of desalination of plasma display screen residual photo provided by the present invention, by color value negate to be shown with pixel on the plasma display, obtain the pixel value after the negate of this pixel, and, can desalinate effectively even eliminate because of showing that for a long time still image makes the residual shadow that stays on the described plasma display screen with its output demonstration; Compared with prior art, the method of desalination of plasma display screen residual photo provided by the present invention realizes simply, only needs output to show after the color value negate to be shown of pixel, do not need to write a large amount of programs, can reach the purpose of residual shadow on the desalination plasma display screen.
Corresponding with said method, the present invention also provides the device of the lower desalination of plasma display screen residual photo of a kind of manufacturing cost, can desalinate the residual shadow that stays on the plasma display screen effectively by this device.
The device of desalination of plasma display screen residual photo provided by the invention comprises:
Start unit starts the desalination of plasma display screen residual photo function;
Receiving element from the voltage source or the decoding unit of plasma display, receives the color value to be shown of pixel on the described plasma display;
The counter-rotating unit is with the color value negate to be shown of described pixel;
Output unit with the color value to be shown after the described pixel negate, outputs in the display unit of described plasma display;
Closing unit is closed described desalination of plasma display screen residual photo function.
The device of desalination of plasma display screen residual photo provided by the present invention, by the counter-rotating unit, color value negate to be shown with pixel on the plasma display, obtain the pixel value after the negate of this pixel, and by output unit its output is shown, can desalinate even eliminate because of demonstration still image for a long time making the residual shadow that stays on the described plasma display screen effectively; Compared with prior art, the device of desalination of plasma display screen residual photo provided by the present invention is realized simply, only needs and will output show after the color value negate to be shown of pixel, can reach the purpose of residual shadow on the desalination plasma display screen; And counter-rotating original paper that the unit adopted is cheap among the present invention, does not need to use high capacity, expensive chip, so the manufacturing cost of the device of this desalination of plasma display screen residual photo is lower.
Description of drawings
Fig. 1 is the process flow diagram of the method for desalination of plasma display screen residual photo provided by the present invention;
Fig. 2 is the structural representation of the device of desalination of plasma display screen residual photo provided by the present invention.
Embodiment
In order to solve prior art ionic medium display when watching image for a long time, the image of certain is static for a long time, and on screen, stay the problem of residual shadow, the invention provides a kind of method of desalination of plasma display screen residual photo, this method is by the color value negate to be shown with pixel on the plasma display, and, can desalinate even eliminate the residual shadow on the plasma display screen effectively with the color value output demonstration to be shown after the described pixel negate.
In order to enable those skilled in the art to understand better the present invention program, and above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the present invention is elaborated below in conjunction with drawings and Examples.
As shown in Figure 1, being applied in the plasma TV with the method for described desalination of plasma display screen residual photo is that example describes:
The startup menu that the user is provided with in can the OSD system by televisor manually boots this function, can described plasma TV be safeguarded according to the needs of oneself by this button user, uses convenient;
Wherein, the color value to be shown of pixel on the described plasma TV, the color value of each pixel that can convert to for the television image information that plasma TV receives is in the time of also can powering on for plasma TV, under the no status input signal, the color value of pixel on the screen; Generally, in the plasma TV, the color value of pixel is a rgb value;
Its concrete negation method is: the color value to be shown of described pixel is represented with the form of binary number, in the colour developing value input negate register to be shown with described pixel with binary representation, the color value to be shown after the value of this negate register output is described pixel negate.For example: the rgb value of white is (255,255,255) be shown (11111111,11111111,11111111) with binary form, the rgb value of described white with binary representation is input in the negate register, this register is a bit register, and the rgb value step-by-step negate of described white is obtained (00000000,00000000,00000000), this value is the color value (black) after the white negate;
When the method for the desalination plasma display screen that utilizes this enforcement to provide is finished the screen maintenance of described plasma TV, the user can this desalination of plasma display screen residual photo function of manual-lock, its concrete method for closing is identical with startup method in the step 101, and the user can close it by the button in the OSD menu on the plasma TV; Also can directly in the system of described plasma TV, timer be set, when the time of described desalination of plasma display screen residual photo function operation arrives the working time of timer defined, described plasma TV is closed the desalination of plasma display screen residual photo function automatically, for example: the time of overflowing of the timer that is provided with in described plasma TV is 3 minutes, when described desalination of plasma display screen residual photo function has been moved 3 minutes on televisor, plasma TV is closed this function automatically, stops the screen of described plasma TV is safeguarded.
The method of the desalination of plasma display screen residual photo that present embodiment provided, by color value negate to be shown with pixel on the plasma TV, obtain the pixel value after the negate of this pixel, and, can desalinate effectively even eliminate because of showing that for a long time still image makes the residual shadow that stays on the described plasma TV screen with its output demonstration; Compared with prior art, the method of the desalination of plasma display screen residual photo that present embodiment provided, realize simple, only need output after the color value negate to be shown of pixel is shown, do not need to write a large amount of programs, can reach the purpose of residual shadow on the desalination plasma display screen.
As shown in Figure 2, corresponding with the method described in Fig. 1, the present invention also provides a kind of device of desalination of plasma display screen residual photo, comprising:
Start unit is used to start the desalination of plasma display screen residual photo function on the plasm TV;
This start unit can be the OSD system of described plasma TV, the user controls it by the button in the described OSD System menu, described start unit starts this desalination of plasma display screen residual photo function by the receiving element in the device of the described desalination of plasma display screen residual photo of control;
Receiving element from the voltage source or the decoding unit of plasma TV, receives the color value to be shown of pixel on the described plasma display;
When the voltage source from plasma TV received the color value to be shown of described pixel, its color value to be shown was the color value under the no signal condition; When the decoding unit from plasma TV received the color value to be shown of described pixel, its color value to be shown was the color value of each pixel of converting to of television image information that described plasma TV receives; The color value to be shown of wherein said pixel generally is the rgb value of this pixel;
The counter-rotating unit is with the color value negate to be shown of described pixel;
In the present embodiment, described counter-rotating unit is regulation and control system LVDS (Low Voltage Differential Signal transmission) bit register; Its concrete negation method is: the color value to be shown of described pixel is represented with the form of binary number, in described LVDS one bit register of described input, the color value to be shown after the value of this LVDS one bit register output is described pixel negate.For example: the rgb value of white is (255,255,255) be shown (11111111,11111111,11111111) with binary form, the rgb value of described white with binary representation is input in the negate register, this register is a bit register, and the rgb value step-by-step negate of described white is obtained (00000000,00000000,00000000), this value is the color value (black) after the white negate;
Output unit with the color value to be shown after the described pixel negate, outputs in the display unit of described plasma TV;
When the device of the desalination plasma display screen that utilizes this enforcement to provide is finished the screen maintenance of described plasma TV, the user can close this desalination of plasma display screen residual photo function by the manual-lock unit, for example: described in the present embodiment manual-lock unit is the OSD system of described plasma TV, the user can control it by the button in the described OSD System menu, described manual-lock unit is by the receiving element in the device of the described desalination of plasma display screen residual photo of control, stop to receive the color value to be shown of pixel on the described plasma display, thereby close this desalination of plasma display screen residual photo function; Simultaneously, also can close this desalination of plasma display screen residual photo function by automatic closing unit, it is specially: in the system of described plasma TV timer is set, the output terminal of described timer links to each other with the Enable Pin of receiving element, the timing time that timer is set is that (this time was fixedly installed in the described timer in 3 minutes, the user can not revise), when the time of described desalination of plasma display screen residual photo function operation arrives the timing time (3 minutes) of timer defined, described plasma TV sends control command from the trend receiving element, stop to receive the color value to be shown of pixel on the described plasma display, thereby reach the purpose of closing this desalination of plasma display screen residual photo function.
The device of the desalination of plasma display screen residual photo that present embodiment provided, by the counter-rotating unit, color value negate to be shown with pixel on the plasma TV, obtain the pixel value after the negate of this pixel, and by output unit its output is shown, can desalinate even eliminate because of demonstration still image for a long time making the residual shadow that stays on the described plasma TV screen effectively; Compared with prior art, the device of the desalination of plasma display screen residual photo that present embodiment provided, realize simply, only need and output to show after the color value negate to be shown of pixel, can reach the purpose of residual shadow on the desalination plasma display screen; And counter-rotating original paper that the unit adopted is cheap among the present invention, does not need to use high capacity, expensive chip, so the manufacturing cost of the device of this desalination of plasma display screen residual photo is lower.
The above; it only is the embodiment of the embodiment of the invention; but the protection domain of the embodiment of the invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, the protection domain of the embodiment of the invention should be as the criterion with the protection domain of claim.
Claims (6)
1. the method for a desalination of plasma display screen residual photo is characterized in that, comprises the steps:
Start the desalination of plasma display screen residual photo function;
Receive the color value to be shown of pixel on the plasma display;
Color value negate to be shown with described pixel;
Export the color value to be shown after the described pixel negate;
Close described desalination of plasma display screen residual photo function.
2. the method for desalination of plasma display screen residual photo according to claim 1 is characterized in that, the color value to be shown of described pixel is the rgb value of this pixel.
3. the method for desalination of plasma display screen residual photo according to claim 1, it is characterized in that, describedly close described desalination of plasma display screen residual photo function and comprise: the close button of user by being provided with in the OSD menu, manual-lock desalination of plasma display screen residual photo function; And/or plasma display is closed described desalination of plasma display screen residual photo function automatically.
4. the device of a desalination of plasma display screen residual photo is characterized in that, comprising:
Start unit starts the desalination of plasma display screen residual photo function;
Receiving element from the voltage source or the decoding unit of plasma display, receives the color value to be shown of pixel on the described plasma display;
The counter-rotating unit is with the color value negate to be shown of described pixel;
Output unit with the color value to be shown after the described pixel negate, outputs in the display unit of described plasma display;
The manual-lock unit, the close button of user by being provided with in the OSD menu, manual-lock desalination of plasma display screen residual photo function; And/or
Automatic closing unit, plasma display is closed the desalination of plasma display screen residual photo function automatically.
5. the device of desalination of plasma display screen residual photo according to claim 4 is characterized in that, described counter-rotating unit transmits a bit register for regulation and control system Low Voltage Differential Signal.
6. the device of desalination of plasma display screen residual photo according to claim 4 is characterized in that, described automatic closing unit comprises: timer is used to write down the time that described desalination of plasma display screen residual photo function is moved; The output terminal of described timer links to each other with the Enable Pin of receiving element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710166017 CN101201993B (en) | 2007-10-31 | 2007-10-31 | Method and device for desalination of plasma display screen residual photo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710166017 CN101201993B (en) | 2007-10-31 | 2007-10-31 | Method and device for desalination of plasma display screen residual photo |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101201993A CN101201993A (en) | 2008-06-18 |
| CN101201993B true CN101201993B (en) | 2010-06-09 |
Family
ID=39517143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710166017 Active CN101201993B (en) | 2007-10-31 | 2007-10-31 | Method and device for desalination of plasma display screen residual photo |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101201993B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6072539A (en) * | 1996-09-26 | 2000-06-06 | U.S. Philips Corporation | Method and arrangement for steepening color edges |
| CN1877639A (en) * | 2006-07-14 | 2006-12-13 | 杭州国芯科技有限公司 | Method for showing animation effect |
| CN1920920A (en) * | 2006-03-13 | 2007-02-28 | 乐金电子（南京）等离子有限公司 | Residual image clearing method for display panel |
-
2007
- 2007-10-31 CN CN 200710166017 patent/CN101201993B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6072539A (en) * | 1996-09-26 | 2000-06-06 | U.S. Philips Corporation | Method and arrangement for steepening color edges |
| CN1920920A (en) * | 2006-03-13 | 2007-02-28 | 乐金电子（南京）等离子有限公司 | Residual image clearing method for display panel |
| CN1877639A (en) * | 2006-07-14 | 2006-12-13 | 杭州国芯科技有限公司 | Method for showing animation effect |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2006-148606A 2006.06.08 |
| JP特开2006-98673A 2006.04.13 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101201993A (en) | 2008-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104766572B (en) | Display device and its control method | |
| CN101916539A (en) | System and method for correcting brightness and chromaticity of LED display screen point by point | |
| CN109166532A (en) | A kind of dimming control system of backlight, dimming controlling method and display device | |
| CN101414449A (en) | Driving method for color sequential display | |
| CN101727810A (en) | Drive circuit for display panel, display panel module, display device, and method for driving display panel | |
| CN105611426A (en) | Method and device for virtually displaying image | |
| US20070229444A1 (en) | Liquid crystal display, method for displaying color images, and method for controlling light sources of an lcd panel | |
| CN201902933U (en) | LED backlight module | |
| JP5863518B2 (en) | Multi-display system and brightness adjustment method in multi-display system | |
| CN101287080A (en) | Method for adjusting image quality on television and television thereof | |
| CN106652885A (en) | Image processing based energy-saving method of LED display screen | |
| CN101201993B (en) | Method and device for desalination of plasma display screen residual photo | |
| Luo et al. | Television's Quantum dots will be the next darling of TV manufacturers | |
| CN109407409A (en) | Backlight module and preparation method thereof, display device | |
| CN101415092A (en) | Method and apparatus for maintaining plasma display screen | |
| US20200184883A1 (en) | Unevenness correction data generation device | |
| CN103517019A (en) | Imaging system of electronic device and cell phone with imaging system | |
| CN102956218B (en) | Display system and display unit control method | |
| CN107818752B (en) | Display panel driving method and display panel | |
| US20060214944A1 (en) | Display apparatus and control method thereof | |
| CN100412923C (en) | Panel display device with white reference compensation device and its white reference compensation process | |
| CN202003131U (en) | Single-system time-sharing color projector of solid light source | |
| JP2003323168A (en) | Projector | |
| CN109889801A (en) | Projection device and method for displaying projection | |
| CN101753908B (en) | Cartoon display method applicable to PDP and PDP television |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151204 Address after: 266101 Haier Industrial Park, Haier Road, hi tech park, Shandong, Qingdao, China Patentee after: haier group corporation Patentee after: Qingdao Haier Electric Appliance Co., Ltd. Patentee after: QINGDAO HAIER MULTI-MEDIA CO., LTD. Address before: 266101 Haier Industrial Park, Haier Road, hi tech park, Shandong, Qingdao, China Patentee before: haier group corporation Patentee before: Qingdao Haier Electric Appliance Co., Ltd. |