CN105304024A - Display panel pixel current compensation method and system - Google Patents
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Abstract
Embodiments of the invention disclose a display panel pixel current compensation method and system. The compensation method comprises steps of testing the practical current value of a subpixel on a display panel at an i-th gray scale; adjusting the practical current value of the subpixel at the i-th gray scale to a preset target current value of the subpixel at the i-th gray scale, and recording a target gray scale value of the target current value when the subpixel is at the i-th gray scale; and based on a data distribution list of target gray scale values of each subpixel at each target current value, performing current compensation of at least one subpixel of a to-be-compensated display panel. Based on the obtained data distribution list, any subpixel of display panels of the same type in mass production can be compensated, so that current of an overall display panel is uniformly distributed. Compared with the prior art, the invention is characterized in that no special compensation circuit is additionally required, the compensation effect is good, the compensation process is simple, and a phenomenon that nonuniform display due to nonuniform current distribution in long-time operation is prevented.
Description
Technical field
The embodiment of the present invention relates to display technique, particularly relates to a kind of pixel current compensation method and system of display panel.
Background technology
Luminophor in display panel; in particular for the active matrix organic light-emitting diode (AMOLED) of low-temperature polysilicon film transistor liquid crystal display (LTPS-TFT); in the fabrication process usually can because polysilicon crystal inequality causes threshold voltage shift; AMOLED is shown uneven, also cause display panel to show accordingly uneven.
In order to improve the uneven situation of AMOLED display, usually using the method for internal compensation and external compensation to carry out display in prior art and compensating.Internal compensation method refers to the impact using the image element circuit having threshold voltage compensation function to eliminate threshold voltage shift, external compensation method comprises external optical and compensates and foreign current compensation, it is use charge coupled cell (CCD) to gather image by the mode of collection signal to realize compensate function that external optical compensates, and it is the method realizing compensate function by gathering sub-pixel electric current that foreign current compensates.Due to the display inequality adopting internal compensation method can not improve AMOLED completely, therefore usually also need to use external compensation method to compensate after the processing procedure of display panel terminates completely.
In prior art, multiselect electric current compensation technique carries out external compensation, currently mainly contains three kinds of current compensation technology.Wherein a kind of current compensation technology needs the electric current increasing dedicated compensation circuits aptitude test sub-pixel in display panel to carry out subsequent compensation.Electric current when the sub-pixel electric current of another kind of current compensation technical testing and sub-pixel real work is inconsistent, and current compensation can be caused inaccurate, reduces the validity of current compensation.Also have a kind of current compensation technology in test when the electric current of prostatitis sub-pixel, need the power lead of closing other row sub-pixels, therefore need all to design independently switch to each row sub-pixel, compensation way is loaded down with trivial details.
Summary of the invention
The embodiment of the present invention provides a kind of pixel current compensation method and system of display panel, needs to increase the defect that dedicated compensation circuits compensates, compensation validity is poor, compensation process is loaded down with trivial details to solve in prior art.
First aspect, embodiments provides a kind of pixel current compensation method of display panel, comprising:
Test the actual current value of the sub-pixel on described display panel at the i-th GTG, wherein, i=0,1,2 ..., n-1, n are greyscale level value;
Described sub-pixel is adjusted to the target current value of this default sub-pixel i-th GTG in the actual current value of the i-th GTG, and records target gray scale value when described sub-pixel is in target current value corresponding to the i-th GTG;
According to the Data distribution8 table of the target gray scale value of sub-pixel described in each when each target current value, current compensation is carried out to the sub-pixel of at least one display panel to be compensated.
Second aspect, the embodiment of the present invention additionally provides a kind of pixel current bucking-out system of display panel, comprising:
Testing current module, for testing the actual current value of the sub-pixel on described display panel at the i-th GTG, wherein, i=0,1,2 ..., n-1, n are greyscale level value;
Current adjusting module, for described sub-pixel to be adjusted to the target current value of this default sub-pixel i-th GTG in the actual current value of the i-th GTG, and records target gray scale value when described sub-pixel is in target current value corresponding to the i-th GTG;
Current compensation module, for the Data distribution8 table according to the target gray scale value of sub-pixel described in each when each target current value, carries out current compensation to the sub-pixel of at least one display panel to be compensated.
The pixel current compensation method of a kind of display panel that the embodiment of the present invention provides and system, by will the sub-pixel that obtains tested to be adjusted in the actual current value of the i-th GTG the target current value of this default sub-pixel i-th GTG, and record the target gray scale value of sub-pixel when the target current value that the i-th GTG is corresponding, target gray scale Distribution value when being in each target current value corresponding to n different GTG respectively according to each sub-pixel, the Data distribution8 table of composition display panel, current compensation is carried out by Data distribution8 table any one sub-pixel to other display panels.This technical scheme can make the balanced current distribution of whole display panel, compared with prior art, do not need to increase dedicated compensation circuits, and compensation effect being good, compensation process simple, new display will being caused uneven because of distribution of current inequality when working long hours.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, the accompanying drawing used required in describing embodiment is done one below to introduce simply, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the process flow diagram of the pixel current compensation method of the display panel that one embodiment of the invention provides;
Fig. 2 is the process flow diagram of the pixel current compensation method of the display panel that one embodiment of the invention provides;
Fig. 3 A is the schematic diagram of the pixel current bucking-out system of the display panel that one embodiment of the invention provides;
Fig. 3 B is the schematic diagram of the pixel current bucking-out system of the another kind of display panel that one embodiment of the invention provides.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, hereinafter with reference to the accompanying drawing in the embodiment of the present invention, by embodiment, technical scheme of the present invention is described clearly and completely, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, the process flow diagram of the pixel current compensation method of the display panel provided for one embodiment of the invention.The technical scheme of the present embodiment is applicable to the uneven situation of display panel display, and the pixel current compensation method of this display panel performs by display panel pixel current compensation system.
The pixel current compensation method of a kind of display panel that the present embodiment provides, comprises the steps:
Sub-pixel on S110, test display panel in the actual current value of the i-th GTG, wherein, i=0,1,2 ..., n-1, n are greyscale level value.
As mentioned above, sub-pixel is any one sub-pixel on display panel.Test process is: the grey decision-making adjusting this sub-pixel is i=0, and test obtains the actual current value of this sub-pixel at the 0th GTG; The grey decision-making again adjusting this sub-pixel is i=1, and test obtains the actual current value of this sub-pixel at the 1st GTG; By that analogy, can test and obtain each actual current value of this sub-pixel at n different GTG.It will be understood by those skilled in the art that the testing sequence of the actual current value of the different GTG of sub-pixel can from Row sum-equal matrix.
It should be noted that, optional greyscale level value n is n=2
m, wherein, M be more than or equal to 3 positive integer, it will be understood by those skilled in the art that common greyscale level value n is preferably 256.
In aforesaid operations, obtain each actual current value of one of them sub-pixel on display panel at n different GTG, according to aforesaid operations, each sub-pixel on display panel is tested, then can obtain each actual current value at n different GTG of each sub-pixel on display panel.
S120, sub-pixel is adjusted to the target current value of this default sub-pixel i-th GTG in the actual current value of the i-th GTG, and records target gray scale value when sub-pixel is in target current value corresponding to the i-th GTG.
As mentioned above, the sub-pixel of display panel is respectively R, G, B, the target current value of whole R sub-pixels when same gray level on display panel should be identical, therefore according to the characteristic of display panel, preset R sub-pixel on display panel at target current value corresponding to each GTG, in like manner arrange G sub-pixel at target current value corresponding to each GTG, B sub-pixel is set at target current value corresponding to each GTG.It should be noted that, the target current value that during same GTG, R sub-pixel, G sub-pixel and B sub-pixel are corresponding may be different, and the target current value as R sub-pixel whole during the 2nd GTG is 83 μ A, all target current value of G sub-pixel is 79 μ A, the target current value of whole B sub-pixel is 86 μ A.Aforesaid operations sub-pixel refers to one of them R sub-pixel or a G sub-pixel or a B sub-pixel.
Known sub-pixel is at the actual current value of the i-th GTG and target current value, then this sub-pixel is adjusted to corresponding target current value in the actual current value of the i-th GTG, now the grey decision-making of this sub-pixel may change along with the change of current value, then record target gray scale value when sub-pixel is adjusted to target current value corresponding to the i-th GTG.By that analogy, target gray scale Distribution value when sub-pixel is in target current value corresponding to n different GTG is respectively recorded.
In aforesaid operations, one of them sub-pixel obtained on display panel is in target gray scale Distribution value during each target current value corresponding to n different GTG respectively, can record target gray scale Distribution value when each sub-pixel is in each target current value corresponding to n different GTG respectively according to aforesaid operations.
S130, Data distribution8 table according to the target gray scale value of each sub-pixel when each target current value, carry out current compensation to the sub-pixel of at least one display panel to be compensated.
As mentioned above, each sub-pixel on display panel is in target gray scale Distribution value during each target current value corresponding to n different GTG respectively, constitute the Data distribution8 table of this display panel, also according to sub-pixel R, G, B Data distribution8 table can be split as that R sub-pixel data is shown respectively, G sub-pixel data is shown respectively and B sub-pixel data is shown respectively.According to this R sub-pixel data distribution table, current compensation can be carried out to any one R sub-pixel of other any one display panels with above-mentioned display panel volume production of the same type.Or according to Data distribution8 table, current compensation can be carried out to any one sub-pixel of other any one display panels with above-mentioned display panel volume production of the same type.
The pixel current compensation method of a kind of display panel that the embodiment of the present invention provides, the actual current value of the sub-pixel on display panel at the i-th GTG is obtained by test, sub-pixel is adjusted to the target current value of this default sub-pixel i-th GTG in the actual current value of the i-th GTG, and record the target gray scale value of sub-pixel when the target current value that the i-th GTG is corresponding, target gray scale Distribution value when being in each target current value corresponding to n different GTG respectively according to each sub-pixel, the Data distribution8 table of composition display panel, to carry out current compensation by Data distribution8 table any one sub-pixel to other display panels.Current compensation is carried out according to Data distribution8 table any one sub-pixel to the display panel of volume production of the same type obtained in the present embodiment, the balanced current distribution of whole display panel can be made, compared with prior art, do not need to increase dedicated compensation circuits, and compensation effect is good, compensation process simple, new display will be caused uneven because of distribution of current inequality when working long hours.
Exemplary, on the basis of technique scheme, as shown in Figure 2, the sub-pixel on the test display panel of step S110, in the operation of the actual current value of the i-th GTG, preferably realizes by following steps:
The GTG of S111, the sub-pixel arranged on display panel is 0, and test obtains the first output current value.
As mentioned above, for the actual current value of the sub-pixel on test display panel, first need the sub-pixel data obtaining this display panel, wherein contain the current gray value of each sub-pixel.At this, GTG of sub-pixel to be tested is set to 0, the grey decision-making of other sub-pixels remains unchanged, then test the current value of this display panel, and this current value is the first output current value.
S112, the GTG of the sub-pixel on display panel is adjusted to i, and test obtains the second output current value.
As mentioned above, after test obtains the first output current value, the grey decision-making of sub-pixel to be tested is adjusted to i from 0, and the grey decision-making of other sub-pixels remains unchanged, then test the current value of this display panel, and this current value is the second output current value.
S113, the second output current value is deducted the first output current value, to obtain the actual current value of sub-pixel at the i-th GTG.
As mentioned above, the grey decision-making of other sub-pixels known remains unchanged, and the grey decision-making of sub-pixel to be tested changes, the GTG of display panel sub-pixel is by Current Control, therefore the current value of other sub-pixels does not change, and the current value of sub-pixel to be tested changes, it can thus be appreciated that the factor affecting output current value only has sub-pixel to be tested.The display panel current value that known second output current value is the grey decision-making of sub-pixel to be tested when being i, the display panel current value that first output current value is the grey decision-making of sub-pixel to be tested when being 0, the difference deducting the first output current value at this second output current value is the actual current value of sub-pixel to be tested at the i-th GTG.
By that analogy, each sub-pixel of obtaining display panel each actual current value at n different GTG can be tested.
It will be understood by those skilled in the art that and can also obtain the actual current value of sub-pixel at the i-th GTG by other means.Such as, the GTG arranging the whole sub-pixels on display panel is 0 and tests to obtain the first output current value, the GTG of sub-pixel to be tested is adjusted to i and tests and obtain the second output current value, the difference of the second output current value and the first output current value is the actual current value of sub-pixel to be tested at the i-th GTG.
Exemplary, on the basis of technique scheme, as shown in Figure 2, the Data distribution8 table according to the target gray scale value of each sub-pixel when each target current value of step S130, the sub-pixel of at least one display panel to be compensated is carried out to the operation of current compensation, preferably realizes by following steps:
S131, any one sub-pixel for display panel to be compensated, according to Data distribution8 table, be adjusted to the target gray scale value that the target current value of this sub-pixel jth GTG is corresponding by the jth GTG of sub-pixel, wherein, j=0,1,2 ..., n-1.
As mentioned above, the distribution situation of the target gray scale value of each sub-pixel on display panel when each target current value constitutes the Data distribution8 table of this display panel, can carry out current compensation to other any display panels with above-mentioned display panel volume production of the same type.To compensate whole display panel, need compensate each GTG of each sub-pixel of this display panel, as each sub-pixel of display panel to be compensated is set to 0 GTG, then in this Data distribution8 table, search the target gray scale value of each sub-pixel at the 0th GTG, 0th GTG of each sub-pixel of display panel to be compensated is adjusted to corresponding target gray scale value, then the adjustment of target gray scale value is being carried out to the sub-pixel being in 1 GTG, by that analogy, whole display panel is compensated.
At target gray scale value and the target current value one_to_one corresponding of this any one sub-pixel, therefore after the initial GTG of sub-pixel being adjusted to target gray scale value, then the current value of this sub-pixel is adjusted to target current value along with the adjustment of target gray scale value, thus achieves the current compensation of this sub-pixel.
As shown in Figure 3A, the schematic diagram of the pixel current bucking-out system of the display panel provided for one embodiment of the invention.The technical scheme of the present embodiment is applicable to the uneven situation of display panel display, and this display panel pixel current compensation system can perform the display panel pixel current compensation method described in above-mentioned any embodiment.
The pixel current bucking-out system of the display panel that the present embodiment provides, comprising: testing current module 210, current adjusting module 220 and current compensation module 230.
Wherein, testing current module 210 for testing the actual current value of the sub-pixel on display panel at the i-th GTG, wherein, i=0,1,2 ..., n-1, n are greyscale level value; Current adjusting module 220 for sub-pixel to be adjusted to the target current value of this default sub-pixel i-th GTG in the actual current value of the i-th GTG, and records target gray scale value when sub-pixel is in target current value corresponding to the i-th GTG; Current compensation module 230, for the Data distribution8 table according to the target gray scale value of each sub-pixel when each target current value, carries out current compensation to the sub-pixel of at least one display panel to be compensated.
Alternatively, greyscale level value n is n=2
m, wherein, M be more than or equal to 3 positive integer.
Alternatively, testing current module 210 comprises: arrange Gray Cell 211, adjustment Gray Cell 212 and test actual current unit 213.
Wherein, arranging Gray Cell 211 for arranging the GTG of the sub-pixel on display panel is 0, and test obtains the first output current value; Adjustment Gray Cell 212 is for being adjusted to i by the GTG of the sub-pixel on display panel, and test obtains the second output current value; Test actual current unit 213 for the second output current value is deducted the first output current value, to obtain the actual current value of sub-pixel at the i-th GTG.
Alternatively, current compensation module 230 comprises: adjustment aim Gray Cell 231.
Wherein, the jth GTG of sub-pixel, for any one sub-pixel for display panel to be compensated, according to Data distribution8 table, is adjusted to the target gray scale value that the target current value of this sub-pixel jth GTG is corresponding by adjustment aim Gray Cell 231, wherein, j=0,1,2 ..., n-1.
The pixel current bucking-out system of the display panel that the present embodiment provides solves AMOLED and initially shows inequality and cause display panel to show uneven problem, and this system does not need to modify to the internal circuit of display panel.
As shown in Figure 3 B, the schematic diagram of the pixel current bucking-out system of the another kind of display panel provided for one embodiment of the invention.This system realizes by calling testing current compensation software 310, multimeter 320, programming device 330, driving chip 340 and display panel 350, testing current compensation software 310 can be installed in a computer, multimeter 320 can select Agilent34411A digital multimeter, programming device 330 can be selected and be made up of arm processor and field programmable gate array (FPGA), and driving chip 340 is IC chip and is electrically connected with display panel 350.
At this, multimeter 320 and programming device 330 are electrically connected with testing current compensation software 310 respectively, and multimeter 320 is also electrically connected with programming device 330, and programming device 330 is electrically connected with driving chip 340, and driving chip 340 drives display panel 350.
It should be noted that, programming device 330 has positive supply output terminal PVDD and negative supply output terminal PVEE, this PVDD and PVEE is used for being powered to display panel 350 by driving chip 340, the electric current that display panel 350 exports all transfers to programming device 330 by PVEE end, therefore multimeter 320 is directly held with the PVEE of programming device 330 and is electrically connected, to obtain the electric current of display panel 350.Wherein, each target current value of R sub-pixel at different GTG of this display panel, G sub-pixel is prestored in testing current compensation software 310 at each target current value of different GTG, B sub-pixel at each target current value of different GTG.
Wherein, testing current module 210 carries out testing current by calling multimeter 320 to the electric current that display panel 350 exports, and the electric current of test is sent to testing current compensation software 310 processes by calling multimeter 320.Current adjusting module 220 to transmit clock signal and the drive singal of driving chip 340 to programming device 330 by calling testing current compensation software 310, display panel 350 is driven to call driving chip 340, realize thus carrying out target current value adjustment to sub-pixel, and call programming device 330 record adjustment after sub-pixel target gray scale value and be sent to testing current compensation software 310.The current data that testing current compensation software 310 transmits according to multimeter and the grey decision-making data that programming device 330 transmits process, and to obtain Data distribution8 table, this Data distribution8 table is stored in the driving chip 340 of each display panel 350.Current compensation module 230 by call be stored in display panel 350 driving chip 340 in Data distribution8 table any one sub-pixel to this display panel 350 carry out current compensation.
It should be noted that, after circuit test compensation software 310 process obtains Data distribution8 table, be stored in by this Data distribution8 table in the storer of the driving chip 340 of each display panel 350 of batch production of the same type by programming device 330, the driving chip 340 of each display panel 350 can carry out current compensation according to the Data distribution8 table in its storer to each sub-pixel.
It will be understood by those skilled in the art that this display panel pixel circuit compensation system also can test to obtain to other types display panel the Data distribution8 table of its correspondence, and regulate the display panel of its corresponding volume production according to Data distribution8 table.
Note, above are only preferred embodiment of the present invention and institute's application technology principle.Skilled person in the art will appreciate that and the invention is not restricted to specific embodiment described here, various obvious change can be carried out for a person skilled in the art, readjust and substitute and can not protection scope of the present invention be departed from.Therefore, although be described in further detail invention has been by above embodiment, the present invention is not limited only to above embodiment, when not departing from the present invention's design, can also comprise other Equivalent embodiments more, and scope of the present invention is determined by appended right.
Claims (9)
1. a pixel current compensation method for display panel, is characterized in that, comprising:
Test the actual current value of the sub-pixel on described display panel at the i-th GTG, wherein, i=0,1,2 ..., n-1, n are greyscale level value;
Described sub-pixel is adjusted to the target current value of this default sub-pixel i-th GTG in the actual current value of the i-th GTG, and records target gray scale value when described sub-pixel is in target current value corresponding to the i-th GTG;
According to the Data distribution8 table of the target gray scale value of sub-pixel described in each when each target current value, current compensation is carried out to the sub-pixel of at least one display panel to be compensated.
2. pixel current compensation method according to claim 1, is characterized in that, described greyscale level value n is n=2
m, wherein, M be more than or equal to 3 positive integer.
3. pixel current compensation method according to claim 1, is characterized in that, tests sub-pixel on described display panel in the actual current value of the i-th GTG, comprising:
The GTG arranging the sub-pixel on described display panel is 0, and test obtains the first output current value;
The GTG of the sub-pixel on described display panel is adjusted to i, and test obtains the second output current value;
Described second output current value is deducted described first output current value, to obtain the actual current value of described sub-pixel at the i-th GTG.
4. pixel circuits compensate method according to claim 1, it is characterized in that, according to the Data distribution8 table of the target gray scale value of sub-pixel described in each when each target current value, carry out current compensation to the sub-pixel of at least one display panel to be compensated, detailed process is:
For any one sub-pixel of described display panel to be compensated, according to described Data distribution8 table, the jth GTG of described sub-pixel is adjusted to the target gray scale value that the target current value of this sub-pixel jth GTG is corresponding, wherein, j=0,1,2 ..., n-1.
5. a pixel current bucking-out system for display panel, is characterized in that, comprising:
Testing current module, for testing the actual current value of the sub-pixel on described display panel at the i-th GTG, wherein, i=0,1,2 ..., n-1, n are greyscale level value;
Current adjusting module, for described sub-pixel to be adjusted to the target current value of this default sub-pixel i-th GTG in the actual current value of the i-th GTG, and records target gray scale value when described sub-pixel is in target current value corresponding to the i-th GTG;
Current compensation module, for the Data distribution8 table according to the target gray scale value of sub-pixel described in each when each target current value, carries out current compensation to the sub-pixel of at least one display panel to be compensated.
6. pixel current bucking-out system according to claim 5, is characterized in that, described greyscale level value n is n=2
m, wherein, M be more than or equal to 3 positive integer.
7. pixel current bucking-out system according to claim 5, is characterized in that, described testing current module comprises:
Arranging Gray Cell, is 0 for arranging the GTG of the sub-pixel on described display panel, and test obtains the first output current value;
Adjustment Gray Cell, for the GTG of the sub-pixel on described display panel is adjusted to i, and test obtains the second output current value;
Test actual current unit, for described second output current value is deducted described first output current value, to obtain the actual current value of described sub-pixel at the i-th GTG.
8. pixel circuits compensate system according to claim 5, is characterized in that, described current compensation module comprises:
Adjustment aim Gray Cell, for any one sub-pixel for described display panel to be compensated, according to described Data distribution8 table, is adjusted to the target gray scale value that the target current value of this sub-pixel jth GTG is corresponding by the jth GTG of described sub-pixel, wherein, j=0,1,2 ..., n-1.
9. a display device, the pixel current compensation method of applying as described in any one of claim 1-4 compensates.
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| CN107731165A (en) * | 2017-11-27 | 2018-02-23 | 合肥鑫晟光电科技有限公司 | A kind of current control method and its device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101477783A (en) * | 2008-01-04 | 2009-07-08 | 统宝光电股份有限公司 | Oled display, information device, and method for displaying an image in OLED display |
| CN101937644A (en) * | 2009-06-30 | 2011-01-05 | 奇晶光电股份有限公司 | Image compensation module, organic light-emitting diode display panel and image compensation method |
| CN104252844A (en) * | 2014-09-23 | 2014-12-31 | 京东方科技集团股份有限公司 | Pixel circuit, driving method of pixel circuit, organic light emitting display panel and display device |
| CN104318900A (en) * | 2014-11-18 | 2015-01-28 | 京东方科技集团股份有限公司 | Organic electroluminescence display device and method |
| CN105096824A (en) * | 2015-08-06 | 2015-11-25 | 青岛海信电器股份有限公司 | Self-luminous displayer gray scale compensation method and device and self-luminous display equipment |
-
2015
- 2015-11-30 CN CN201510859279.3A patent/CN105304024B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101477783A (en) * | 2008-01-04 | 2009-07-08 | 统宝光电股份有限公司 | Oled display, information device, and method for displaying an image in OLED display |
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Effective date of registration: 20211027 Address after: No.8, liufangyuan Henglu, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee after: WUHAN TIANMA MICRO-ELECTRONICS Co.,Ltd. Patentee after: Wuhan Tianma Microelectronics Co.,Ltd. Shanghai Branch Patentee after: Tianma Micro-Electronics Co.,Ltd. Address before: Room 509, building 1, No. 6111, Longdong Avenue, Pudong New Area, Shanghai, 200120 Patentee before: SHANGHAI TIANMA AM-OLED Co.,Ltd. Patentee before: Tianma Micro-Electronics Co.,Ltd. |