CN102737607B - Display control device, display control method and display device of liquid crystal screen - Google Patents
Display control device, display control method and display device of liquid crystal screen Download PDFInfo
- Publication number
- CN102737607B CN102737607B CN201210256214.6A CN201210256214A CN102737607B CN 102737607 B CN102737607 B CN 102737607B CN 201210256214 A CN201210256214 A CN 201210256214A CN 102737607 B CN102737607 B CN 102737607B
- Authority
- CN
- China
- Prior art keywords
- frequency
- signal
- lcd screen
- start signal
- image display
- 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
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000004973 liquid crystal related substance Substances 0.000 title abstract description 8
- 230000000694 effects Effects 0.000 abstract description 26
- 230000004438 eyesight Effects 0.000 abstract description 6
- 238000009877 rendering Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 6
- 206010019133 Hangover Diseases 0.000 description 5
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention provides a display control device of a liquid crystal screen. The display control device comprises a frequency obtaining unit and a signal output unit, wherein the frequency obtaining unit is used for obtaining a corresponding initial signal frequency according to received image information of an image display signal; and the signal output unit is used for outputting a corresponding initial signal to a display driving device of a liquid crystal screen according to the initial signal frequency, so that the liquid crystal screen has a corresponding scanning frequency. According to another aspect of the invention, a display control method of the liquid crystal screen is provided. With the adoption of the technical scheme of the invention, the liquid crystal screen can be controlled to fresh an image in a corresponding scanning frequency according to the information of an image signal; poor image display effect or influence to the eyesight of a user caused by the simplification of an image fresh frequency is avoided; and an optimal display effect is achieved.
Description
Technical field
The present invention relates to LCD screen Driving technique field, in particular to a kind of sweep frequency control device display control unit of LCD screen and sweep frequency control method display control method, a kind of display device.
Background technology
Traditional liquid crystal panel is generally divided into 60 hertz, 120 hertz, 240 hertz these three kinds of main flow panels, normal tv signal source mostly adopts the single image refreshing frequency of 60 hertz or 120 hertz, and for shutter 3D liquid crystal display, its 3D rendering mostly adopts the single image refreshing frequency of 120 hertz or 240 hertz to control, and there is no the application scheme of changeable frequency, be all single a kind of fixedly refreshing frequency.Such as for shutter 3D rendering, 240 hertz of image effects will be got well, and for normal signal, 60 hertz or 120 hertz of image effects just relatively good, if mandatory down low frequency may cause picture card to pause, if force to improve frequency, may produce hangover or ghost, not only can affect image effect, also may impact user's eyesight.
Therefore, need a kind of new display control technology, the not good or eyesight influence to user of the image display effect that can avoid the simplification due to image refreshing frequency to cause.
Summary of the invention
In order to solve fixedly refreshing frequency single in correlation technique, cannot coordinate preferably with picture signal, thereby the picture effect causing is poor, affect the problems such as user's eyesight, the invention provides a kind of display control technology of LCD screen, can control LCD screen with corresponding sweep frequency refreshed image according to the information of picture signal, make image display effect more desirable.
In view of this, the present invention proposes a kind of display control unit of LCD screen, comprising: frequency acquisition unit, the corresponding start signal frequency of image information acquisition of the image display signal receiving for basis; Signal output unit, for according to described start signal frequency, exports corresponding start signal to the display drive apparatus of described LCD screen, so that described LCD screen has corresponding sweep frequency.
In this technical scheme, according to different picture signals, choose corresponding start signal, because the frequency of start signal has determined the sweep frequency of correspondence image, thereby by the frequency difference of start signal, make LCD screen with corresponding sweep frequency refreshed image, thereby avoided different picture signals to adopt identical sweep frequency, make every kind of image all can be by corresponding, most suitable sweep frequency refreshes, to reach best display effect, can not cross and cause slowly Ka Dun or sweep frequency is too fast produces hangover due to sweep frequency, ghost etc.
According to another aspect of the invention, also proposed a kind of display control method of LCD screen, having comprised: step 202, according to the corresponding start signal frequency of the image information acquisition of the image display signal receiving; Step 204, according to described start signal frequency, exports corresponding start signal to the display drive apparatus of described LCD screen, so that described LCD screen has corresponding sweep frequency.
In this technical scheme, according to different picture signals, choose corresponding start signal, because the frequency of start signal has determined the sweep frequency of correspondence image, thereby by the frequency difference of start signal, make LCD screen with corresponding sweep frequency refreshed image, thereby avoided different picture signals to adopt identical sweep frequency, make every kind of image all can be by corresponding, most suitable sweep frequency refreshes, to reach best display effect, can not cross and cause slowly Ka Dun or sweep frequency is too fast produces hangover due to sweep frequency, ghost etc.
According to another aspect of the invention, also propose a kind of display device, comprised the display control unit of the LCD screen described in above-mentioned arbitrary technical scheme.
Pass through technique scheme, can control LCD screen with corresponding sweep frequency refreshed image according to the information of picture signal, the not good or eyesight influence to user of the image display effect of avoiding the simplification due to image refreshing frequency to cause, realizes best display effect.
Accompanying drawing explanation
Fig. 1 shows the block diagram of the display control unit of LCD screen according to an embodiment of the invention;
Fig. 2 shows the process flow diagram of the display control method of LCD screen according to an embodiment of the invention;
Fig. 3 shows start signal frequency and the accordingly schematic diagram of sweep frequency according to an embodiment of the invention.
Embodiment
In order more clearly to understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, in the situation that not conflicting, the application's embodiment and the feature in embodiment can combine mutually.
Set forth in the following description a lot of details so that fully understand the present invention, still, the present invention can also adopt other to be different from other modes described here and implement, and therefore, the present invention is not limited to the restriction of following public specific embodiment.
Fig. 1 shows the block diagram of the display control unit of LCD screen according to an embodiment of the invention.
As shown in Figure 1, the display control unit 100 of LCD screen comprises according to an embodiment of the invention: frequency acquisition unit 102, the corresponding start signal frequency of image information acquisition of the image display signal receiving for basis; Signal output unit 104, for according to start signal frequency, exports corresponding start signal to the display drive apparatus of LCD screen, so that LCD screen has corresponding sweep frequency.
In this technical scheme, each two field picture of LCD screen has a corresponding start signal, and the frequency of start signal has determined the sweep frequency of correspondence image.According to different picture signals, choose corresponding start signal, because the frequency of start signal has determined the sweep frequency of correspondence image, thereby by the frequency difference of start signal, make LCD screen with corresponding sweep frequency refreshed image, thereby avoided different picture signals to adopt identical sweep frequency, every kind of image all can be refreshed by sweep frequency correspondence, most suitable, to reach best display effect, can be because sweep frequency is crossed slow cause Ka Dun or too fast hangover, the ghost etc. of producing of sweep frequency.As for 3D rendering, the sweep frequency that can control LCD screen is 120 hertz, coordinate scanning backlight, to realize the shutter 3D effect of 120 hertz, if while having relatively high expectations for 3D effect, the sweep frequency that can control LCD screen is 240 hertz, required minimum crosstalk effect when meeting high request, and for non-3D rendering, the sweep frequency that can control LCD screen is 60 hertz, make sweep frequency corresponding with the incoming frequency of picture signal, guaranteed picture signal loss reduction.By control the sweep frequency of LCD screen according to the difference of image type, can be so that the display effect of image be more desirable.
In technique scheme, in a kind of situation, image information comprises the frequency of image display signal, frequency acquisition unit 102 for: obtain the frequency of image display signal, and using the frequency of image display signal as start signal frequency.
In this technical scheme, the image display signal of input itself has certain frequency, as 60Hz or 120Hz etc., and can be using the frequency of image display signal as corresponding start signal frequency, thereby dynamically adjust the sweep frequency of corresponding LCD screen, to reaching optimal display result.
In technique scheme, in another kind of situation, image information comprises the type of image display signal, and the display control unit of LCD screen also comprises: association store unit 106, for the type of at least one image display signal and at least one start signal frequency are carried out to association store; And frequency acquisition unit 102 for: determine the real-time type of image display signal, and obtain the start signal frequency being associated with real-time type.
In this technical scheme, image type (can be embodied in to the type of image display signal, such as this image display signal is 2D picture signal or 3D rendering signal) carry out association store with corresponding start signal frequency, according to the type of image, can directly judge and export the start signal of corresponding frequencies, such as 2D picture signal is associated with 60Hz, 3D rendering signal is associated with 240Hz, according to current image display signal, be 2D signal or 3D signal, can select corresponding 60Hz or 240Hz as corresponding start signal frequency; And if do not carry out association store, can also pass through preset algorithm, according to the image type obtaining, calculate corresponding optimum scanning frequency, and export the start signal of respective frequencies, but obviously, by by the corresponding stored of image type and start signal frequency, can save the time of calculating sweep frequency, improve the travelling speed of system.
In technique scheme, also comprise: setting unit 108, for according to the order that arranges receiving, arranges start signal frequency.
In this technical scheme, user can arrange start signal frequency as required, and then regulates sweep frequency, obtains the display effect of actual needs.
In above-mentioned arbitrary technical scheme, signal output unit 104 can be sequential control (TCON, Timing Controller) plate.
In above-mentioned arbitrary technical scheme, the image display signal that frequency acquisition unit 102 receives comprises 3D rendering signal or 2D picture signal, wherein: in the situation that image display signal is 3D rendering signal, start signal frequency is 120 hertz or 240 hertz; In the situation that image display signal is 2D picture signal, start signal frequency is 60 hertz.
Certainly, it should be appreciated by those skilled in the art, the frequency of different start signals differs and is decided to be above-mentioned 60,120 or 240 hertz, can also set according to actual needs arbitrarily or improved signal frequency for other.
Fig. 2 shows the process flow diagram of the display control method of LCD screen according to an embodiment of the invention.
As shown in Figure 2, the display control method of LCD screen according to an embodiment of the invention, comprising: step 202, according to the corresponding start signal frequency of the image information acquisition of the image display signal receiving; Step 204, according to start signal frequency, exports corresponding start signal to the display drive apparatus of LCD screen, so that LCD screen has corresponding sweep frequency.
In this technical scheme, each two field picture of LCD screen has a corresponding start signal, and the frequency of start signal has determined the sweep frequency of correspondence image.According to different picture signals, choose corresponding start signal, because the frequency of start signal has determined the sweep frequency of correspondence image, thereby by the frequency difference of start signal, make LCD screen with corresponding sweep frequency refreshed image, thereby avoided different picture signals to adopt identical sweep frequency, every kind of image all can be refreshed by sweep frequency correspondence, most suitable, to reach best display effect, can be because sweep frequency is crossed slow cause Ka Dun or too fast hangover, the ghost etc. of producing of sweep frequency.As for 3D rendering, the sweep frequency that can control LCD screen is 120 hertz, coordinate scanning backlight, to realize the shutter 3D effect of 120 hertz, if while having relatively high expectations for 3D effect, the sweep frequency that can control LCD screen is 240 hertz, required minimum crosstalk effect when meeting high request, and for non-3D rendering, the sweep frequency that can control LCD screen is 60 hertz, make sweep frequency corresponding with the incoming frequency of picture signal, guaranteed picture signal loss reduction.By control the sweep frequency of LCD screen according to the difference of image type, can be so that the display effect of image be more desirable.
In technique scheme, in a kind of situation, image information comprises the frequency of image display signal, and step 202 comprises: obtain the frequency of image display signal, and using the frequency of image display signal as start signal frequency.
In this technical scheme, the image display signal of input itself has certain frequency, as 60Hz or 120Hz etc., and can be using the frequency of image display signal as corresponding start signal frequency, thereby dynamically adjust the sweep frequency of corresponding LCD screen, to reaching optimal display result.
In technique scheme, in another kind of situation, image information comprises the type of image display signal, before step 202, also comprises: the type of at least one image display signal and at least one start signal frequency are carried out to association store; And step 202 comprises: determine the real-time type of image display signal, and obtain the start signal frequency being associated with real-time type.
In this technical scheme, image type (can be embodied in to the type of image display signal, such as this image display signal is 2D picture signal or 3D rendering signal) carry out association store with corresponding start signal frequency, according to the type of image, can directly judge and export the start signal of corresponding frequencies, such as 2D picture signal is associated with 60Hz, 3D rendering signal is associated with 240Hz, according to current image display signal, be 2D signal or 3D signal, can select corresponding 60Hz or 240Hz as corresponding start signal frequency; And if do not carry out association store, can also pass through preset algorithm, according to the image type obtaining, calculate corresponding optimum scanning frequency, and export the start signal of respective frequencies, but obviously, by by the corresponding stored of image type and start signal frequency, can save and calculate the time of obtaining sweep frequency, improve the travelling speed of system.
In technique scheme, also comprise: according to the order that arranges receiving, described start signal frequency is arranged.
In this technical scheme, user can arrange start signal frequency as required, and then regulates sweep frequency, obtains the display effect of actual needs.
In above-mentioned arbitrary technical scheme, image display signal comprises 3D rendering signal or 2D picture signal, wherein: if image display signal is 3D rendering signal, start signal frequency is 120 hertz or 240 hertz; If image display signal is 2D picture signal, start signal frequency is 60 hertz.
Certainly, it should be appreciated by those skilled in the art, the frequency of different start signals differs and is decided to be above-mentioned 60,120 or 240 hertz, can also set according to actual needs arbitrarily or improved signal frequency for other.
Fig. 3 shows start signal frequency and the accordingly schematic diagram of sweep frequency according to an embodiment of the invention.
As shown in Figure 3, current LCD screen generally has three kinds of sweep frequencies, be respectively 60 hertz, 120 hertz, 240 hertz, every two field picture is a corresponding start signal all, be specifically as follows STV signal, the triggering mode of start signal can be to become high level from low level, and after high level continues for some time, triggers every two field picture and scan.
The frequency of start signal has also determined the sweep frequency of image, and as when start signal changes with the frequency of 60 hertz, every two field picture scans with the frequency of 60 hertz, and the scan period is 1/60=16.7ms; When start signal changes with the frequency of 120 hertz, every two field picture scans with the frequency of 120 hertz, and the scan period is 1/120=8.3ms; When start signal changes with the frequency of 240 hertz, every two field picture scans with the frequency of 240 hertz, and the scan period is 1/240=4.2ms.
According to another aspect of the invention, also propose a kind of display device, comprised the display control unit of the LCD screen described in above-mentioned arbitrary technical scheme.
More than be described with reference to the accompanying drawings technical scheme of the present invention, considered in correlation technique, LCD screen sweep frequency is fixed, and cannot change sweep frequency according to different images.The present invention proposes a kind of display control unit of LCD screen, can control LCD screen with corresponding sweep frequency refreshed image according to the information of picture signal, the not good or eyesight influence to user of the image display effect of avoiding the simplification due to image refreshing frequency to cause, thus realize best display effect.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. a display control unit for LCD screen, is characterized in that, comprising:
Frequency acquisition unit, for according to the image information of the image display signal receiving, obtains corresponding start signal frequency;
Signal output unit, for according to described start signal frequency, exports corresponding start signal to the display drive apparatus of described LCD screen, so that described LCD screen has corresponding sweep frequency;
Wherein, described image information comprises the frequency of described image display signal, and described frequency acquisition unit is used for:
Obtain the frequency of described image display signal, and using the frequency of described image display signal as described start signal frequency.
2. the display control unit of LCD screen according to claim 1, is characterized in that, described image information comprises the type of described image display signal, and the display control unit of described LCD screen also comprises:
Association store unit, for by the type of image display signal described at least one and described at least one start signal frequency carry out association store; And
Described frequency acquisition unit is used for: determine the real-time type of described image display signal, and obtain the start signal frequency being associated with described real-time type.
3. the display control unit of LCD screen according to claim 2, is characterized in that, also comprises:
Setting unit, for according to the order that arranges receiving, arranges described start signal frequency.
4. according to the display control unit of the LCD screen described in any one in claims 1 to 3, it is characterized in that, described signal output unit comprises sequential control plate.
5. a display control method for LCD screen, is characterized in that, comprising:
Step 202, according to the corresponding start signal frequency of the image information acquisition of the image display signal receiving;
Step 204, according to described start signal frequency, exports corresponding start signal to the display drive apparatus of described LCD screen, so that described LCD screen has corresponding sweep frequency;
Wherein, described image information comprises the frequency of described image display signal, and described step 202 comprises:
Obtain the frequency of described image display signal, and using the frequency of described image display signal as described start signal frequency.
6. the display control method of LCD screen according to claim 5, is characterized in that, described image information comprises the type of described image display signal, before described step 202, also comprises:
By the type of image display signal described at least one and described at least one start signal frequency carry out association store; And
Described step 202 comprises:
Determine the real-time type of described image display signal, and obtain the start signal frequency being associated with described real-time type.
7. the display control method of LCD screen according to claim 6, is characterized in that, also comprises:
According to the order that arranges receiving, described start signal frequency is arranged.
8. a display device, is characterized in that, comprises the display control unit of the LCD screen as described in any one in claim 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210256214.6A CN102737607B (en) | 2012-07-23 | 2012-07-23 | Display control device, display control method and display device of liquid crystal screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210256214.6A CN102737607B (en) | 2012-07-23 | 2012-07-23 | Display control device, display control method and display device of liquid crystal screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102737607A CN102737607A (en) | 2012-10-17 |
| CN102737607B true CN102737607B (en) | 2014-09-03 |
Family
ID=46992987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210256214.6A Active CN102737607B (en) | 2012-07-23 | 2012-07-23 | Display control device, display control method and display device of liquid crystal screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102737607B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065598B (en) * | 2012-12-31 | 2014-12-17 | 东南大学 | Control method for preventing liquid crystal display from being blurred |
| CN103165093B (en) * | 2013-02-26 | 2016-03-02 | 深圳市金立通信设备有限公司 | A kind of method and display device adjusting screen refresh rate |
| CN103997335B (en) * | 2014-05-13 | 2017-04-05 | 合肥鑫晟光电科技有限公司 | The setting device of the signal frequency of time schedule controller, method and display device |
| CN106652919A (en) * | 2016-09-09 | 2017-05-10 | 青岛海信电器股份有限公司 | Image display method and display apparatus |
| CN111326126B (en) * | 2020-04-16 | 2022-03-25 | 福州京东方光电科技有限公司 | Signal supply circuit, signal supply method and display device |
| CN113643664B (en) * | 2021-08-16 | 2022-12-02 | 成都京东方光电科技有限公司 | Drive module and display device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101154368A (en) * | 2006-09-26 | 2008-04-02 | Nec液晶技术株式会社 | Liquid crystal display device |
| CN101819754A (en) * | 2009-02-26 | 2010-09-01 | 精工爱普生株式会社 | Image display device, electronic equipment and method for displaying image |
| CN101901575A (en) * | 2009-05-29 | 2010-12-01 | 奇美电子股份有限公司 | Display control device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101545510B1 (en) * | 2008-12-24 | 2015-08-20 | 삼성전자주식회사 | 2 3 Method and apparatus for displaying 2-dimensional image sequence or 3-dimensional image sequence with frame rate adjustment |
| KR101328787B1 (en) * | 2010-05-07 | 2013-11-13 | 엘지디스플레이 주식회사 | Image display device and driving method thereof |
-
2012
- 2012-07-23 CN CN201210256214.6A patent/CN102737607B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101154368A (en) * | 2006-09-26 | 2008-04-02 | Nec液晶技术株式会社 | Liquid crystal display device |
| CN101819754A (en) * | 2009-02-26 | 2010-09-01 | 精工爱普生株式会社 | Image display device, electronic equipment and method for displaying image |
| CN101901575A (en) * | 2009-05-29 | 2010-12-01 | 奇美电子股份有限公司 | Display control device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102737607A (en) | 2012-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102737607B (en) | Display control device, display control method and display device of liquid crystal screen | |
| KR101804890B1 (en) | Method of driving display panel and a display apparatus performing the method | |
| KR101753801B1 (en) | Liquid crystal display device and driving method for thereof | |
| CN106205460A (en) | The driving method of display device, time schedule controller and display device | |
| US8441585B2 (en) | Stereoscopic image display device | |
| US9196184B2 (en) | Method of driving display panel and display apparatus for performing the same | |
| CN103035213A (en) | Method of driving a display panel and display apparatus for performing the same | |
| KR20110009504A (en) | Stereoscopic image display and driving method thereof | |
| EP2760210B1 (en) | Method for displaying stereoscopic image and display apparatus for performing the same | |
| CN103051914A (en) | 3D (three-dimensional) image display method, 3D image display device and television | |
| JP2013073238A (en) | Three-dimensional image display apparatus and method | |
| US8698731B2 (en) | Backlight module driving system and driving method thereof | |
| CN103607583A (en) | Display method, display device and display system for shutter type three dimensional image | |
| CN103413537A (en) | Image black frame insertion liquid crystal driving method, device and liquid crystal display device | |
| WO2014048125A1 (en) | Driving method and driving system of 3d liquid crystal display apparatus, and 3d glasses | |
| CN105575345B (en) | A kind of method for displaying image and device | |
| CN101848398A (en) | Stereoscopic image displaying method | |
| JP2015007744A (en) | Stereoscopic image display and driving method thereof | |
| WO2011155148A1 (en) | Display device and video audiovisual system | |
| CN103067726A (en) | Method and device of image display and television | |
| CN104280968A (en) | Liquid crystal panel and pixel black insertion method during 3D display of liquid crystal panel | |
| CN103403788B (en) | Method and system for driving 3D liquid crystal display device, and 3D glasses | |
| US10187624B2 (en) | Display method for inserting part of successive monocular frame image signals and part of successive black picture image signals in image frame | |
| CN103051912A (en) | Scanning method and system of shutter glasses type 3D (Three Dimensional) liquid crystal display television | |
| KR20130063277A (en) | Method of driving display panel, method of displaying three-dimensional stereoscopic image and display apparatus for performing the same |
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 | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 266555 Qingdao economic and Technological Development Zone, Shandong, Hong Kong Road, No. 218 Patentee after: Hisense Visual Technology Co., Ltd. Address before: 266555 Qingdao economic and Technological Development Zone, Shandong, Hong Kong Road, No. 218 Patentee before: QINGDAO HISENSE ELECTRONICS Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |