CN104934003A - Source driving system and display device using same - Google Patents
Source driving system and display device using same Download PDFInfo
- Publication number
- CN104934003A CN104934003A CN201510363328.4A CN201510363328A CN104934003A CN 104934003 A CN104934003 A CN 104934003A CN 201510363328 A CN201510363328 A CN 201510363328A CN 104934003 A CN104934003 A CN 104934003A
- Authority
- CN
- China
- Prior art keywords
- source driving
- driving chip
- display device
- input end
- terminal resistance
- 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.)
- Granted
Links
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a source driving system, which comprises a plurality of terminal resistors, a plurality of source driving chips and at least one buffer unit. The plurality of terminal resistors are each arranged between a positive electrode wire and a negative electrode wire of each pair of differential wires, and are used for converting video current signals into voltage differential signals. An input end of each source driving chip is connected with one terminal resistor for receiving the corresponding voltage differential signal, so as to output a source driving voltage according to the voltage differential signal. The buffer unit copies the voltage differential signal received by the input end of the previous source driving chip into a corresponding current differential signal, and outputs the current differential signal to the terminal resistor corresponding to the input end of the next source driving chip. The invention further provides a display device. The source driving system and the display device using the same provided by the invention utilize the buffer unit to copy the voltage differential signals into the corresponding current differential signals, and avoid the risk of abnormal image display because the input video current signals flow towards the plurality of source driving chips.
Description
Technical field
The present invention relates to Driving technique field, particularly a kind of source driving system and use its display device.
Background technology
Liquid crystal display (Liquid Crystal Display, LCD) have that image quality is good, volume is little, lightweight, low driving voltage, low-power consumption, the advantage such as radiationless, occupy an leading position in flat display field at present, be widely used in desk-top computer, palmtop computer, personal digital assistant (PersonalDigital Assistant, PDA), portable phone, TV and multiple office automation and audio-visual equipment.
With thin film transistor (TFT) (Thin Film Transistor, TFT) liquid crystal indicator is example, it comprises display panels and drive system, wherein, display panels comprises many gate lines and a plurality of data lines, and adjacent two gate lines and adjacent two data lines intersect to form a pixel cell, each pixel cell at least comprises a thin film transistor (TFT), and drive system comprises raster data model system and source driving system.Along with the pursuit of the producer to the cost degradation of liquid crystal indicator and the raising of manufacturing process, originally the glass substrate that the drive system integrated chip be arranged at beyond display panels is arranged at display panels becomes possibility, such as, raster data model integrated system is arranged at array base palte (Gate IC in Array, GIA) on, the manufacture process of liquid crystal indicator can be simplified, and reduce production cost.
The basic functional principle of display panels and drive system is: raster data model system is by sending gate drive signal with pulling up transistor to gate line of being electrically connected of gate line, sequentially the TFT of every a line is opened, then the pixel cell of a full line is charged to voltage required separately, to show different GTGs by source driving system simultaneously.Namely first to be pulled up transistor by it by the raster data model system of the first row and the thin film transistor (TFT) of the first row opened, then charged by the pixel cell of source driving system to the first row.When the pixel cell of the first row is charged, this row thin film transistor (TFT) just cuts out by raster data model system, then the raster data model system of the second row is pulled up transistor by it and to be opened by thin film transistor (TFT) of the second row, then is charged by the pixel cell of source driving system to the second row.So sequentially go down, when the pixel cell of substituting the bad for the good last column, just charge from the first row again.
Because source driving system utilizes to export different voltage to change the orientation of liquid crystal molecule, the different GTG of picture is formed again through the printing opacity degree that each pixel is different, therefore display of new generation is while resolution, brightness and reaction time continue to optimize, source driving system also needs more high frequency and more high voltage could meet high sweep frequency and the demand upgraded fast, and the number of chips of source driving system also will improve according to demand.
Fig. 1 is the module diagram of the display device of an embodiment of prior art.As shown in Figure 1, the source driving system of existing display device generally includes multiple source driving chip (only illustrating two in Fig. 1).As shown in Figure 1, display device comprises main circuit board, drive plate, multiple flexible PCB, the first source driving chip and the second source driving chip.Wherein, drive plate is provided with multipair differential lines.Often pair of differential lines comprises electrode line P and negative line N.Main circuit board realizes being electrically connected by connector with the differential lines on drive plate, and often pair of differential lines is connected with the input end of multiple source driving chip respectively by multiple flexible PCB.Wherein, dotted line represents the cabling at the drive plate back side.In order to avoid differential signal such as video current signal is when transmitting, because signal (particularly high-frequency signal) can form stronger reflection wave in transmission line in terminal, the transmission direction of this reflection wave is contrary with the direction of original signal, therefore the signal of transmission-wire terminal is the superposition of original signal reflected signal therewith, therefore, the transmission-wire terminal that second source driving chip is corresponding needs arrange a terminal resistance R, with the characteristic impedance by terminal resistance R match circuit printed line road, reflected signal is minimized, thus makes original signal transmission quality best.Terminal resistance R also changes current signal into voltage signal simultaneously.But because the first source driving chip is away from terminal resistance R, therefore, first source driving chip easily receives due to the reflection of differential signal between the first source driving chip and the second source driving chip cabling at the reflection wave that transmission-wire terminal is formed, thus it is abnormal to cause display device picture to show.
Fig. 2 is the module diagram of the display device of another embodiment of prior art.The source driving system of existing display device generally includes multiple source driving chip (only illustrating two in Fig. 2).As shown in Figure 2, display device comprises main circuit board, drive plate, multiple flexible PCB and multiple source driving chip, wherein, drive plate is provided with multipair differential lines.Often pair of differential lines comprises electrode line P and negative line N.Main circuit board realizes being electrically connected by connector with the differential lines on drive plate, and often pair of differential lines is connected with the input end of multiple source driving chip respectively by multiple flexible PCB.Wherein, dotted line represents the cabling at the drive plate back side.With the upper embodiment (referring to Fig. 1) of prior art unlike, in order to avoid differential signal such as video current signal is when transmitting, because high speed signal forms reflection wave in transmission line in terminal, interference original signal, the differential lines of the input end of each source driving chip all needs arrange a terminal resistance R.But, because existing source driving system comprises multiple source driving chip, the video current signal of input source driving system can flow to multiple source driving chip, therefore, the electric current of the differential signal that each source driving chip receives will reduce, the source drive voltage exported will be caused like this to reduce, thus it is abnormal to cause picture to show.
Therefore, be necessary to provide the technical scheme of improvement to overcome the above technical matters existed in prior art.
Summary of the invention
The main technical problem to be solved in the present invention is to provide a kind of source driving system of source drive voltage of energy output HIGH voltage.
The present invention discloses a kind of source driving system, and for exporting source electrode driving voltage, to drive display panel to show different GTG, described source driving system comprises multiple terminal resistance, multiple source driving chip and at least one buffer cell; Described multiple terminal resistance is separately positioned between the electrode line of often pair of differential lines and negative line, for video current signal is converted to voltage differential signal; The input end of each described source driving chip is connected with described terminal resistance, to receive described voltage differential signal, thus exports described source drive voltage according to described voltage differential signal; At least one buffer cell described is between the input end of adjacent two described source driving chips, described voltage differential signal for being received by the input end of previous described source driving chip copies as corresponding current difference signal, and the described terminal resistance that the input end exporting a rear described source driving chip to is corresponding.
Preferably, described buffer cell is arranged on the inside of described source driving chip.
Preferably, the number of described terminal resistance is identical with the number of described source class driving chip, and the difference of the number of described source driving chip and the number of described buffer cell is 1.
Preferably, differential lines described in each described source driving chip correspondence a pair.
The present invention also provides a kind of display device, and described display device comprises above-mentioned source driving system.
Preferably, described display device also comprises main circuit board, drive plate, multiple flexible PCB; Described main circuit board is for exporting described video current signal; Described drive plate is provided with multipair described differential lines, described differential lines is connected with described main circuit board, to receive the described video current signal that described main circuit board exports; Described multiple flexible PCB lays respectively between the input end of described source driving chip and described terminal resistance, for described voltage differential signal is transferred to described multiple source driving chip.
Preferably, described multiple terminal resistance is all arranged on described drive plate.
Preferably, described drive plate is printed circuit board (PCB).
Preferably, described display device also comprises display panel, and described display panel is connected with described source driving system, to receive described source drive voltage, thus shows different GTG.
Source driving system of the present invention and display device utilize buffer cell that voltage differential signal is copied as corresponding current difference signal, the problem of the electric current reduction of the differential signal that each source driving chip that the video current signal avoided owing to inputting source driving system flows to multiple source driving chip and causes receives, thus the source drive voltage that each source driving chip exports can not reduce, and then avoid the abnormal risk of picture display.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
Fig. 1 is the module diagram of the display device of prior art one embodiment.
Fig. 2 is the module diagram of the display device of another embodiment of prior art.
Fig. 3 is the structural representation of the source driving system of one embodiment of the invention.
Fig. 4 is the circuit theory schematic diagram of the buffer cell of one embodiment of the invention.
Fig. 5 a is the input terminal voltage waveform schematic diagram of the buffer cell of one embodiment of the invention.
Fig. 5 b is the output end current waveform schematic diagram of the buffer cell of one embodiment of the invention.
Fig. 6 is the module diagram of the display device of one embodiment of the invention.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.
Fig. 3 is the structural representation of the source driving system of one embodiment of the invention.Source driving system, for exporting source electrode driving voltage, shows different GTG to drive display panel.Refer to Fig. 3, source driving system comprises multiple terminal resistance, multiple source driving chip and at least one buffer cell U1.
In an embodiment of the present invention, the number of terminal resistance R is identical with the number of source driving chip, and the difference of the number of source driving chip and the number of buffer cell U1 is 1.
Comprise two terminal resistances (first terminal resistance R1, the second terminal resistance R2) for source driving system below, two source driving chips (the first source driving chip 101, second source driving chip 102) are described.
First source driving chip 101 comprises first input end 1011, first internal logic circuit 1012.Second source driving chip 102 comprises the second input end 1021, second internal logic circuit 1022.
Between the electrode line N of the differential lines that the second input end 1021 of the electrode line N that first terminal resistance R1 and the second terminal resistance R2 are separately positioned on differential lines corresponding to the first input end 1011 of the first source driving chip 101 and negative line P and the second source driving chip 102 is corresponding and negative line P.The first input end 1011 of the first source driving chip 101 and the second input end 1021 of the second source driving chip 102 are connected with first terminal resistance R1, the second terminal resistance R2 respectively, that is, first source driving chip 101 first input end 1011 be connected with the two ends of first terminal resistance R1, the second input end 1012 of the second source driving chip 102 is connected with the two ends of the second terminal resistance R2.What certainly it will be appreciated by those skilled in the art that is, the first input end 1011 of the first source driving chip 101 and the second input end 1021 of the second source driving chip 102 are connected with first terminal resistance R1, the second terminal resistance R2 respectively by link block such as flexible PCB (not shown in Fig. 3, to please refer to Fig. 6).
Namely buffer cell U1 is between the input end of adjacent two source driving chips between the first input end 1011 of the first source driving chip 101 and the second input end 1021 of the second source driving chip 102.
Particularly, the differential lines that first terminal resistance R1 is corresponding receives the video current signal that main circuit board (not shown in Fig. 3, to please refer to Fig. 6) exports, and video current signal is converted to voltage differential signal by first terminal resistance R1.Buffer cell U1 is used for the voltage differential signal of the previous source driving chip such as reception of the first input end 1011 of the first source driving chip 101 to copy as corresponding current difference signal, and current difference signal being exported to the second terminal resistance R2 of the second input end 1021 correspondence of a rear source driving chip such as the second source driving chip 102, current difference signal is converted to corresponding voltage differential signal by the second terminal resistance R2.
First internal logic circuit 1012 exports the first source drive voltage according to the voltage differential signal that first input end 1011 receives, and the second internal logic circuit 1022 exports the second source drive voltage according to the voltage differential signal that the second input end 1021 receives.
Wherein, buffer cell U1 is arranged on the inside of the first source driving chip 101, what certainly it will be appreciated by those skilled in the art that is, the inside that also buffer cell U1 can be arranged on the second source driving chip 102 or the outside being arranged in the first source driving chip 101 and the second source driving chip 102 are such as positioned on drive plate 300 (Fig. 3 is not shown, please refer to Fig. 6).
Wherein, first terminal resistance R1 and/or the second terminal resistance R2 is arranged on the inside of the first source driving chip 101, what certainly it will be appreciated by those skilled in the art that is, the inside that also first terminal resistance R1 and/or the second terminal resistance R2 can be arranged on the second source driving chip 102 or the outside being arranged in the first source driving chip 101 and the second source driving chip 102 are such as positioned on drive plate 300 (Fig. 3 is not shown, please refer to Fig. 6).
The terminal of often pair of differential lines of each source driving chip 101,102 correspondence is respectively arranged with first terminal resistance R1, the second terminal resistance R1.The video current signal that main circuit board 400 exports by first terminal resistance R1 converts voltage differential signal to, the voltage differential signal that first terminal resistance R1 changes is copied as corresponding current difference signal by buffer cell U1, and current difference signal is exported to the second terminal resistance R2 of the second input end 1021 correspondence of the second source driving chip 102, to make the second terminal resistance R2, current difference signal is converted to corresponding voltage differential signal, thus make each source driving chip 101, 102 difference receiver voltage differential signals, to export source electrode driving voltage according to voltage differential signal, and then make display panel receive source drive voltage, to show different GTG, the problem of the electric current reduction of the differential signal that each source driving chip that the video current signal avoided owing to inputting source driving system flows to multiple source driving chip and causes receives, the source drive voltage that each source driving chip is exported can not reduce, and then avoid the abnormal risk of picture display.
Fig. 4 is the circuit theory schematic diagram of the buffer cell U1 of one embodiment of the invention, and buffer cell U1 comprises input end and output terminal.Fig. 5 a is the input terminal voltage waveform schematic diagram of the buffer cell of one embodiment of the invention.Fig. 5 b is the output end current waveform schematic diagram of the buffer cell of one embodiment of the invention.Be used for the voltage signal of its input end being copied as the identical current signal of waveform please refer to Fig. 4, Fig. 5 a and Fig. 5 b, buffer cell U1 to export.
Fig. 6 is the module diagram of the display device of one embodiment of the invention.As shown in Figure 6, display device comprises source driving system, multiple flexible PCB 200, drive plate 300, main circuit board 400 and display panel (not shown) as shown in Figure 3.Wherein, main circuit board 400 is for output video current signal, and source driving system exports source electrode drive singal to display panel according to video current signal, shows different GTG to drive display panel.
Wherein, source driving system comprises multiple source driving chip and (the first source driving chip 101, second source driving chip 102 is only shown in figure, the number of source driving chip is not limited to 2), multiple terminal resistance (first terminal resistance R1, the second terminal resistance R2 are only shown in figure, and the number of terminal resistance is not limited to 2).Drive plate 300 is provided with multipair differential lines and (in figure, only illustrates that two is right, the number of differential lines be not limited to two to), often pair of differential lines includes electrode line N, negative line P, and between the electrode line N of often pair of differential lines and negative line P, cross-over connection is provided with terminal resistance (first terminal resistance R1, the second terminal resistance R2 are only shown in Fig. 6) respectively.One end of often pair of differential lines on drive plate 300 realizes being electrically connected with source driving chip (the first source driving chip 101, second source driving chip 102 is only shown in Fig. 6) respectively by a flexible PCB 200, and the other end of often pair of differential lines on drive plate 300 realizes being electrically connected by connector with main circuit board 400.
In an embodiment of the present invention, first terminal resistance R1, the second terminal resistance R2 are all arranged on drive plate 300.
In an embodiment of the present invention, drive plate 300 is printed circuit board (PCB).
Source driving system of the present invention and display device utilize buffer cell U1 that voltage differential signal is copied as corresponding current difference signal, the problem of the electric current reduction of the differential signal that each source driving chip that the video current signal avoided owing to inputting source driving system flows to multiple source driving chip and causes receives, the source drive voltage that each source driving chip is exported can not reduce, and then avoids the abnormal risk of picture display.
Apply specific case in the present invention to set forth the principle of source driving system of the present invention and display device and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, to sum up, this description should not be construed as limitation of the present invention.
Claims (9)
1. a source driving system, for exporting source electrode driving voltage, to drive display panel to show different GTG, it is characterized in that, described source driving system comprises:
Multiple terminal resistance, is separately positioned between the electrode line of often pair of differential lines and negative line, for video current signal is converted to voltage differential signal;
Multiple source driving chip, the input end of each described source driving chip is connected with described terminal resistance, to receive described voltage differential signal, thus exports described source drive voltage according to described voltage differential signal; And
At least one buffer cell, between the input end of adjacent two described source driving chips, described voltage differential signal for being received by the input end of previous described source driving chip copies as corresponding current difference signal, and the described terminal resistance that the input end exporting a rear described source driving chip to is corresponding.
2. source driving system as claimed in claim 1, it is characterized in that, described buffer cell is arranged on the inside of described source driving chip.
3. source driving system as claimed in claim 1, it is characterized in that, the number of described terminal resistance is identical with the number of described source class driving chip, and the difference of the number of described source driving chip and the number of described buffer cell is 1.
4. source driving system as claimed in claim 1, is characterized in that, differential lines described in each described source driving chip correspondence a pair.
5. a display device, is characterized in that, comprises the source driving system as described in Claims 1-4 any one.
6. display device as claimed in claim 5, it is characterized in that, described display device also comprises:
Main circuit board, described main circuit board is for exporting described video current signal;
Drive plate, described drive plate is provided with multipair described differential lines, described differential lines is connected with described main circuit board, to receive the described video current signal that described main circuit board exports; And
Multiple flexible PCB, lays respectively between the input end of described source driving chip and described terminal resistance, for described voltage differential signal is transferred to described multiple source driving chip.
7. display device as claimed in claim 6, it is characterized in that, described multiple terminal resistance is all arranged on described drive plate.
8. display device as claimed in claim 6, it is characterized in that, described drive plate is printed circuit board (PCB).
9. display device as claimed in claim 6, it is characterized in that, described display device also comprises display panel, and described display panel is connected with described source driving system, to receive described source drive voltage, thus shows different GTG.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510363328.4A CN104934003B (en) | 2015-06-26 | 2015-06-26 | Source driving system and use its display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510363328.4A CN104934003B (en) | 2015-06-26 | 2015-06-26 | Source driving system and use its display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104934003A true CN104934003A (en) | 2015-09-23 |
| CN104934003B CN104934003B (en) | 2017-07-18 |
Family
ID=54121147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510363328.4A Active CN104934003B (en) | 2015-06-26 | 2015-06-26 | Source driving system and use its display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104934003B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107832245A (en) * | 2017-11-10 | 2018-03-23 | 维沃移动通信有限公司 | A kind of output impedance adjusting method, chip and mobile terminal |
| CN115862512A (en) * | 2022-12-07 | 2023-03-28 | 北京奕斯伟计算技术股份有限公司 | Source driver, configuration method and electronic device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5872561A (en) * | 1997-03-31 | 1999-02-16 | Allen-Bradley Company, Llc | Fast scanning switch matrix |
| CN1545208A (en) * | 2001-02-01 | 2004-11-10 | 富士通株式会社 | DC offset compensation circuit, differential amplifier circuit, photoelectric pulse conversion circuit |
| CN101847378A (en) * | 2009-03-27 | 2010-09-29 | 北京京东方光电科技有限公司 | Source driving chip |
| CN101882427A (en) * | 2008-12-30 | 2010-11-10 | 东部高科股份有限公司 | Differential signaling serial interface circuit |
| CN102254523A (en) * | 2010-05-18 | 2011-11-23 | 硅工厂股份有限公司 | Chip-on-glass (COG) type liquid crystal display device |
-
2015
- 2015-06-26 CN CN201510363328.4A patent/CN104934003B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5872561A (en) * | 1997-03-31 | 1999-02-16 | Allen-Bradley Company, Llc | Fast scanning switch matrix |
| CN1545208A (en) * | 2001-02-01 | 2004-11-10 | 富士通株式会社 | DC offset compensation circuit, differential amplifier circuit, photoelectric pulse conversion circuit |
| CN101882427A (en) * | 2008-12-30 | 2010-11-10 | 东部高科股份有限公司 | Differential signaling serial interface circuit |
| CN101847378A (en) * | 2009-03-27 | 2010-09-29 | 北京京东方光电科技有限公司 | Source driving chip |
| CN102254523A (en) * | 2010-05-18 | 2011-11-23 | 硅工厂股份有限公司 | Chip-on-glass (COG) type liquid crystal display device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107832245A (en) * | 2017-11-10 | 2018-03-23 | 维沃移动通信有限公司 | A kind of output impedance adjusting method, chip and mobile terminal |
| CN115862512A (en) * | 2022-12-07 | 2023-03-28 | 北京奕斯伟计算技术股份有限公司 | Source driver, configuration method and electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104934003B (en) | 2017-07-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101129242B1 (en) | Liquid crystal display device using chip on glass method | |
| KR100864926B1 (en) | LCD Display | |
| CN105575350A (en) | Mura compensation circuit, Mura compensation method, driving circuit and display device | |
| US8860711B2 (en) | Timing controller and liquid crystal display using the same | |
| CN204302618U (en) | A kind of display device | |
| CN104076544A (en) | Display device | |
| CN201812478U (en) | Display drive system of liquid crystal screen and flexible circuit board thereof | |
| CN104977763A (en) | Drive circuit, drive method thereof and liquid crystal display | |
| TW200406613A (en) | Display device | |
| US7973785B2 (en) | Control board and display apparatus having the same | |
| CN106384578B (en) | A kind of protection circuit, method and display preventing GOA panel operation irregularity | |
| CN109859684A (en) | Display device and interface method thereof | |
| CN105185333A (en) | Grid driving circuit of liquid crystal display device | |
| CN104062789A (en) | Display device | |
| CN101334543A (en) | Liquid crystal display device and driving method thereof | |
| CN104050946A (en) | Multi-phase gate driver and display panel thereof | |
| JP2006251772A (en) | Driving circuit of liquid crystal display | |
| CN101082710A (en) | Liquid-crystal display and method of driving liquid-crystal display | |
| CN101369061A (en) | Method for driving liquid crystal display panel | |
| CN105448270A (en) | A display driving system and a display apparatus | |
| CN101540146B (en) | Liquid crystal display driving device with interface conversion function | |
| CN104934003A (en) | Source driving system and display device using same | |
| CN108735179A (en) | Display drive apparatus, display drive component and display device | |
| US8525927B1 (en) | Method for enlarging 4K2K resolution and 4K2K resolution enlarging system using same | |
| US11210974B2 (en) | Driving circuit of display apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee after: InfoVision Optoelectronics(Kunshan)Co.,Ltd. Address before: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee before: INFOVISION OPTOELECTRONICS (KUNSHAN) Co.,Ltd. |