CN106710560B - Driving circuit and display device for display panel - Google Patents
Driving circuit and display device for display panel Download PDFInfo
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- CN106710560B CN106710560B CN201710114618.4A CN201710114618A CN106710560B CN 106710560 B CN106710560 B CN 106710560B CN 201710114618 A CN201710114618 A CN 201710114618A CN 106710560 B CN106710560 B CN 106710560B
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- gamma electric
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- electrode driver
- driving circuit
- display
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- 238000003491 array Methods 0.000 claims description 25
- 238000004088 simulation Methods 0.000 claims description 24
- 239000004973 liquid crystal related substance Substances 0.000 description 12
- 238000010586 diagram Methods 0.000 description 7
- 239000011521 glass Substances 0.000 description 6
- 239000000758 substrate Substances 0.000 description 6
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 241001637516 Polygonia c-album Species 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
- G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a kind of driving circuit for display panel, display panel includes multiple display areas, and driving circuit includes: sequence controller, for providing different timing control signal and display data signal to multiple display areas；Multiple source electrode drivers, each source electrode driver correspond to a corresponding display area in multiple display areas, for providing gray scale voltage corresponding with display data signal to corresponding display area based on timing control signal；Multiple gamma electric voltage generative circuits, it respectively corresponds and is arranged in multiple source electrode drivers on a corresponding source electrode driver and forms cascade circuit, for providing multiple gamma electric voltages to corresponding source electrode driver by cascade mode, multiple gamma electric voltages are used to generate the reference voltage of gray scale voltage for corresponding source electrode driver.The present invention can alleviate, it is uneven using problem caused by multiple driving circuits, such as grayscale due to large scale display panel to be mitigated or eliminated.
Description
Technical field
The invention belongs to display technology fields, more particularly, to a kind of driving circuit for display panel and show
Showing device.
Background technique
Since liquid crystal display device has many advantages, such as frivolous, energy saving, low-power consumption, TV, computer, hand have been widely used in it
In the electronic equipments such as machine, digital camera.
Fig. 1 shows the equivalent circuit diagram of liquid crystal display device according to prior art.The display panel of liquid crystal display device
10 include the first glass substrate and the second glass substrate, the first table of the first surface of the first glass substrate and the second glass substrate
Face is opposite.It is formed on the first surface of the first glass substrate and a plurality of controlling grid scan line and a plurality of source electrode number intersected with each other is set
According to line, in the crossover location setting selection thin film transistor (TFT) and pixel electrode of the two.In the first surface shape of the second glass substrate
At public electrode.Include liquid crystal layer between pixel electrode and public electrode, can be equivalent to pixel capacitance Clc.In order in pixel
Update cycle between keep voltage, pixel capacitance Clc can parallel connection storage capacitance Cs to obtain the longer retention time.
Liquid crystal display device further includes gate drivers 30 and source electrode driver 40, and gate drivers 30 are connected to a plurality of
Controlling grid scan line, for providing grid voltage G1 to Gm.Source electrode driver 40 is connected to a plurality of source data line, for providing ash
Rank voltage S1 to Sn.Sequence controller 20 is connected with gate drivers 30 and source electrode driver 40 respectively, to drive to grid
Dynamic device 30 and source electrode driver 40 provide various clock signals.In each frame period, under the control of sequence controller 20 according to
The secondary a plurality of controlling grid scan line of scanning.Thin film transistor (TFT) is gated via controlling grid scan line, and will be with grayscale via source data line
Corresponding voltage is applied to pixel capacitance Clc, to change the orientation of liquid crystal molecule to realize the brightness of corresponding grayscale, with reality
The display of existing picture.
With the development of technology, display panel is designed to have bigger size, to meet the needs of more different.Needle
To large scale display panel problem encountered (for example, resolution ratio, charging time etc.), current solution generally pass through by
Display panel " virtually " is divided into multiple subregions (for example, 2 × 2) and is carried out respectively using multiple driving circuits to each subregion
Driving.
Fig. 2 shows the schematic block diagrams for the driving circuit that display panel is used in the liquid crystal display device of the prior art.
As shown in Fig. 2, display panel 10 is divided into four display areas 11 to 14, each display area is correspondingly arranged on a source electrode
Driver (Source Driver IC) 41 to 44, each source electrode driver provide gray scale to its corresponding display area 11 to 14
The voltage of display.Each source electrode driver 41 to 44 includes gamma (Gamma) voltage generation circuit 411 to 441 and source electrode
Driving circuit 412 to 442.Gamma electric voltage generative circuit generates multiple gamma (Gamma) voltages, and produces via source electrode drive circuit
Raw voltage corresponding with grayscale.Wherein, the first source electrode driver 41 includes the first gamma electric voltage generative circuit 411 and the first source
Pole driving circuit 412, the second source electrode driver 42 include the second gamma electric voltage generative circuit 421 and the second source electrode drive circuit
422, third source electrode driver 43 includes third gamma electric voltage generative circuit 431 and third source electrode drive circuit 432, the 4th source electrode
Driver 44 includes the 4th gamma electric voltage generative circuit 441 and the 4th source electrode drive circuit 442.
Due to the gamma Gamma voltage generation circuit of each source electrode driver 41 to 44 be it is independent, it is generated not
With the inconsistent luminance difference that can lead to four subregions under same grayscale between gamma electric voltage, grayscale unevenness is in turn resulted in
Even (and possibly line of demarcation is uneven).
Summary of the invention
The purpose of the present invention is to provide a kind of driving circuits and display device for display panel.
According to an aspect of the present invention, a kind of driving circuit for display panel is provided, the display panel includes more
A display area, the driving circuit include: sequence controller, for providing different timing control letters to multiple display areas
Number and display data signal；Multiple source electrode drivers, each described source electrode driver correspond in the multiple display area
One corresponding display area, for being provided and the display based on the timing control signal to corresponding display area
The corresponding gray scale voltage of data-signal；Multiple gamma electric voltage generative circuits respectively correspond and are arranged in the multiple source electrode driver
In on a corresponding source electrode driver, it is the multiple for providing multiple gamma electric voltages to corresponding source electrode driver
Gamma electric voltage is used to generate the reference voltage of the gray scale voltage for corresponding source electrode driver, wherein multiple gamma electricity
It presses generative circuit to form cascade circuit, and the multiple gamma electric voltage is transferred to multiple source drives by cascade mode
Device.
Preferably, the gamma electric voltage generative circuit includes gamma electric voltage generation unit, switch arrays unit and benchmark
Voltage generating unit, wherein the gamma electric voltage generation unit generates multiple simulation gamma electric voltages, and multiple simulation gammas are electric
Pressure is supplied to reference voltage generation unit via the switch arrays unit, and the reference voltage generation unit is according to multiple simulations
Gamma electric voltage generates reference voltage.
Preferably, the gamma electric voltage generative circuit further includes concatenation unit, connect, is used for the switch arrays unit
Multiple gamma electric voltage generative circuits are made to form cascade circuit.
Preferably, the switch arrays unit includes multiple switch, is connected respectively with multiple simulation gamma electric voltages, and according to
Control signal is on multiple switch or off state.
Preferably, a switch arrays unit in multiple switch arrays units is in the conductive state, and others are opened
Closing array element is off state.
Preferably, corresponding described when the switch arrays unit is in the conductive state under the influence of control signals
Multiple simulation gamma electric voltages are transferred to the gamma electric voltage generative circuit of next stage by gamma electric voltage generative circuit by concatenation unit.
Preferably, corresponding described when the switch arrays unit is in an off state under the influence of control signals
Gamma electric voltage generative circuit receives multiple simulation gamma electric voltages from the gamma electric voltage generative circuit of upper level by concatenation unit.
Preferably, the driving circuit further include: multiple source electrode drive circuits respectively correspond and are arranged in the multiple source electrode
In driver on a corresponding source electrode driver, for generated according to multiple gamma electric voltages and display data signal provide with
The corresponding gray scale voltage of the display data signal.
Preferably, the reference voltage generation unit includes:
Multiple buffer amplifiers are connect with the multiple switch of array switch unit respectively；
Divider resistance string is connect with multiple buffer amplifiers.
According to another aspect of the present invention, a kind of display device is provided, including driving circuit described above.
Driving circuit provided in an embodiment of the present invention for display panel, will be corresponding with multiple display areas multiple
Corresponding multiple gamma electric voltage generative circuits form cascade circuit on source electrode driver, make to provide on each source electrode driver
Multiple gamma electric voltages it is identical, and then make multiple display areas as the display under same grayscale, solve different viewing areas
Grayscale problem of non-uniform caused by the multiple gamma electric voltages in domain are different improves display quality.
Detailed description of the invention
By referring to the drawings to the description of the embodiment of the present invention, above-mentioned and other purposes of the invention, feature and
Advantage will be apparent from, in the accompanying drawings:
Fig. 1 shows the equivalent circuit diagram of liquid crystal display device according to prior art；
Fig. 2 shows the schematic frames for the driving circuit that display panel is used in liquid crystal display device according to prior art
Figure；
Fig. 3 shows the signal in liquid crystal display device according to an embodiment of the present invention for the driving circuit of display panel
Property block diagram；
Fig. 4 shows the schematic block diagram of the source electrode driver in liquid crystal display dress according to an embodiment of the present invention.
Specific embodiment
The various embodiments that the present invention will be described in more detail that hereinafter reference will be made to the drawings.In various figures, identical element
It is indicated using same or similar appended drawing reference.For the sake of clarity, the various pieces in attached drawing are not necessarily to scale.
The present invention can be presented in a variety of manners, some of them example explained below.
Fig. 3 shows the signal in liquid crystal display device according to an embodiment of the present invention for the driving circuit of display panel
Property block diagram.As shown in figure 3, display area can be divided into multiple display areas in the case where large scale display panel.
Correspondingly, which includes: sequence controller 20, for providing different timing controls to multiple display areas
Signal processed and display data signal；Multiple source electrode driver 41-44, each described source electrode driver correspond to the multiple aobvious
Show a corresponding display area in the 11-14 of region, for being based on the timing control signal to corresponding display area
Gray scale voltage corresponding with the display data signal is provided；Multiple gamma electric voltage generative circuit 411-441, respectively correspond setting
In the multiple source electrode driver 41-44 on a corresponding source electrode driver, it is used for corresponding source electrode driver
Multiple gamma electric voltages are provided, the multiple gamma electric voltage is used to generate the gray scale voltage for corresponding source electrode driver
Reference voltage.Multiple source electrode drive circuit 412-442 are respectively corresponded and are arranged in the multiple source electrode driver one accordingly
On source electrode driver 41-44, provided and the display data for being generated according to multiple gamma electric voltages and display data signal
The corresponding gray scale voltage of signal.
In this example it is shown that panel includes 4 display areas, therefore, driving circuit is illustrated as including 4 source electrodes
Driver.Special, multiple gamma electric voltage generative circuit 411-441 form cascade circuit, and the multiple gamma electric voltage is led to
It crosses cascade mode and is transferred to multiple source electrode drivers.
In the present embodiment, since all source electrode driver 41-44 use identical reference voltage, they can
With the being consistent property when conversion shows data.In other words, identical display data will be converted into identical gray scale voltage.This
Sample, grayscale between each display area caused by can eliminating due to reference voltage is inconsistent is uneven (and can
Energy ground line of demarcation is uneven).It should be understood that display area included by display panel (and sequence controller therefore
And source electrode driver) number be illustrative；It may include more or fewer display areas.
First source electrode driver 41 include the first gamma electric voltage generative circuit 411 and the first source electrode drive circuit 412, second
Source electrode driver 42 includes the second gamma electric voltage generative circuit 421 and the second source electrode drive circuit 422, third source electrode driver 43
Including third gamma electric voltage generative circuit 431 and third source electrode drive circuit 432, the 4th source electrode driver 44 includes the 4th gamma
Voltage generation circuit 441 and the 4th source electrode drive circuit 442.
Fig. 4 shows the schematic block diagram of the gamma electric voltage generative circuit provided according to embodiments of the present invention.With in Fig. 4
It is described for one gamma electric voltage generative circuit 411.Wherein, the gamma electric voltage generative circuit 411 is raw including gamma electric voltage
At unit 4111, switch arrays unit 4112 and reference voltage generation unit 4113.
Wherein, the gamma electric voltage generation unit 4111 generates multiple simulation gamma electric voltages (Gamma1-Gamma n), and
Multiple simulation gamma electric voltages (Gamma 1-Gamma n) are supplied to reference voltage via the switch arrays unit 4112 to generate
Unit 4113, the reference voltage generation unit 4113 generate reference voltage according to multiple simulation gamma electric voltages.
In the present embodiment, the switch arrays unit includes multiple switch K1-Kn, respectively with multiple simulation gamma electric voltages
(Gamma 1-Gamma n) is connected, and is on multiple switch K1-Kn or off state according to control signal.It is multiple to open
Closing K1-Kn can be field effect transistor or triode, its on or off is controlled by control electrode.
The reference voltage generation unit includes multiple buffer amplifiers and divider resistance string, wherein multiple Hyblid Buffer Amplifiers
Device is connect with the multiple switch of array switch unit respectively；Divider resistance string is connect with multiple buffer amplifiers.
The gamma electric voltage generative circuit further includes concatenation unit 4114, is connect with the switch arrays unit 4112, is used
In making multiple gamma electric voltage generative circuit 411-441 form cascade circuits.
Second gamma electric voltage generative circuit 421, third gamma electric voltage generative circuit 431 and the 4th gamma electric voltage generate electricity
Road 441 is identical as the first gamma electric voltage generative circuit 411, and details are not described herein.
Respective concatenation unit connection in first gamma electric voltage generative circuit, 411 to the 4th gamma electric voltage generative circuit 441,
Form cascade circuit.
A switch arrays unit in first gamma electric voltage generative circuit, 411 to the 4th gamma electric voltage generative circuit 441
In the conductive state, then the switch arrays unit in other gamma electric voltage generative circuits is in an off state.
It is when the received control signal of the first gamma electric voltage generative circuit 411 is high level, then corresponding in the present embodiment
Switch arrays unit 4112 is in the conductive state, at this point, main device of first source electrode driver 11 as entire driving circuit, together
When, when the received control signal of 421 to the 4th gamma electric voltage generative circuit of the second gamma electric voltage generative circuit 441 is low electricity
Flat, corresponding 4212 to 4412 (not shown) of switch arrays unit is in off state, the second source electrode driver 12 to
Slave device of 4th source electrode driver 14 as driving circuit.First gamma electric voltage generative circuit of the first source electrode driver 11
411 are transferred to multiple simulation gamma electric voltages by concatenation unit the gamma electric voltage generative circuit of next stage.Second source drive
Second gamma electric voltage generative circuit 421 of device 12 receives multiple simulation gamma electric voltages by concatenation unit and is supplied to the drive of the second source electrode
Dynamic circuit 422, and multiple simulation gamma electric voltage is transferred to next stage gamma electric voltage generative circuit.And so on, until
All source electrode drivers receive multiple simulation gamma electric voltages.
Driving circuit provided in an embodiment of the present invention for display panel, will be corresponding with multiple display areas multiple
Corresponding multiple gamma electric voltage generative circuits form cascade circuit on source electrode driver, make to provide on each source electrode driver
Multiple gamma electric voltages it is identical, and then make multiple display areas as the display under same grayscale, solve different viewing areas
Grayscale problem of non-uniform caused by the multiple gamma electric voltages in domain are different improves display quality.
According to another aspect of the present invention, a kind of display device is provided, including driving circuit described above.
It is as described above according to the embodiment of the present invention, these embodiments details all there is no detailed descriptionthe, also not
Limiting the invention is only the specific embodiment.Obviously, as described above, can make many modifications and variations.This explanation
These embodiments are chosen and specifically described to book, is principle and practical application in order to better explain the present invention, thus belonging to making
Technical field technical staff can be used using modification of the invention and on the basis of the present invention well.Protection model of the invention
The range that the claims in the present invention are defined should be subject to by enclosing.
Claims (10)
1. a kind of driving circuit for display panel, the display panel includes multiple display areas, which is characterized in that described
Driving circuit includes:
Sequence controller, for providing different timing control signal and display data signal to multiple display areas；
Multiple source electrode drivers, each described source electrode driver correspond to a corresponding display in the multiple display area
Region, it is corresponding with the display data signal for being provided based on the timing control signal to corresponding display area
Gray scale voltage；
Multiple gamma electric voltage generative circuits respectively correspond and are arranged in the multiple source electrode driver, are used for corresponding
Source electrode driver provides multiple simulation gamma electric voltages, and the multiple simulation gamma electric voltage is used to be corresponding source electrode driver
The reference voltage of the gray scale voltage is generated,
Wherein, multiple gamma electric voltage generative circuits form cascade circuits, and the multiple simulation gamma electric voltage are passed through cascade
Mode is transferred to remaining multiple source electrode driver, keeps the multiple simulation gamma electric voltages provided on each source electrode driver identical, into
And make the gray scale voltage provided to multiple display areas identical.
2. driving circuit according to claim 1, which is characterized in that the gamma electric voltage generative circuit includes gamma electric voltage
Generation unit, switch arrays unit and reference voltage generation unit,
Wherein, the gamma electric voltage generation unit generates multiple simulation gamma electric voltages, and by multiple simulation gamma electric voltages via institute
It states switch arrays unit and is supplied to reference voltage generation unit,
The reference voltage generation unit generates reference voltage according to multiple simulation gamma electric voltages.
3. driving circuit according to claim 2, which is characterized in that the gamma electric voltage generative circuit further includes a grade receipts or other documents in duplicate
Member is connect with the switch arrays unit, for making multiple gamma electric voltage generative circuits form cascade circuit.
4. driving circuit according to claim 3, which is characterized in that the switch arrays unit includes multiple switch, point
It is not connected with multiple simulation gamma electric voltages, and is on multiple switch or off state according to control signal.
5. driving circuit according to claim 4, which is characterized in that a switch in multiple switch arrays units
Array element is in the conductive state, and other switch arrays units are off state.
6. driving circuit according to claim 5, which is characterized in that when the switch arrays unit is in the work of control signal
When in the conductive state under, the corresponding gamma electric voltage generative circuit passes multiple simulation gamma electric voltages by concatenation unit
It is defeated by the gamma electric voltage generative circuit of next stage.
7. driving circuit according to claim 5, which is characterized in that when the switch arrays unit is in the work of control signal
When in an off state under, the corresponding gamma electric voltage generative circuit is raw from the gamma electric voltage of upper level by concatenation unit
Multiple simulation gamma electric voltages are received at circuit.
8. driving circuit according to claim 2, which is characterized in that further include: multiple source electrode drive circuits respectively correspond
It is arranged in the multiple source electrode driver on a corresponding source electrode driver, for according to multiple reference voltages and display
Data-signal generates gray scale voltage corresponding with the display data signal.
9. driving circuit according to claim 2, which is characterized in that the reference voltage generation unit includes:
Multiple buffer amplifiers are connect with the multiple switch of switch arrays unit respectively；
Divider resistance string is connect with multiple buffer amplifiers.
10. a kind of display device, including such as the described in any item driving circuits of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710114618.4A CN106710560B (en) | 2017-02-28 | 2017-02-28 | Driving circuit and display device for display panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710114618.4A CN106710560B (en) | 2017-02-28 | 2017-02-28 | Driving circuit and display device for display panel |
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| Publication Number | Publication Date |
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| CN106710560A CN106710560A (en) | 2017-05-24 |
| CN106710560B true CN106710560B (en) | 2019-08-23 |
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| CN201710114618.4A Active CN106710560B (en) | 2017-02-28 | 2017-02-28 | Driving circuit and display device for display panel |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107742495A (en) * | 2017-10-12 | 2018-02-27 | 惠科股份有限公司 | Drive circuit and display device |
| CN108932935B (en) * | 2018-07-13 | 2020-12-01 | 昆山龙腾光电股份有限公司 | Source electrode driving circuit and display device |
| US10861377B2 (en) | 2018-10-24 | 2020-12-08 | HKC Corporation Limited | Gamma voltage correction circuit, method and display device |
| CN109243355B (en) * | 2018-10-24 | 2021-04-06 | 惠科股份有限公司 | Gamma voltage correction circuit, method and display device |
| CN109346025A (en) * | 2018-12-18 | 2019-02-15 | 深圳市华星光电半导体显示技术有限公司 | Liquid crystal display device |
| KR102611010B1 (en) * | 2018-12-24 | 2023-12-07 | 주식회사 엘엑스세미콘 | Source driving circuit |
| US10872550B2 (en) * | 2019-03-27 | 2020-12-22 | Novatek Microelectronics Corp. | Display driver and displaying method for cascade application |
| CN114495792B (en) * | 2021-02-02 | 2023-12-26 | 友达光电股份有限公司 | Display driving circuit and display driving method |
| CN113393817A (en) * | 2021-06-18 | 2021-09-14 | 惠州华星光电显示有限公司 | Display device and driving method thereof |
| CN113963664B (en) * | 2021-10-22 | 2022-12-09 | 晟合微电子(肇庆)有限公司 | Display method based on cascade drive chip, display and readable storage medium |
| CN115602134A (en) * | 2022-10-31 | 2023-01-13 | 广东美的制冷设备有限公司（Cn） | Display screen driving method and device, storage medium and terminal equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102059784B1 (en) * | 2013-03-25 | 2019-12-27 | 엘지디스플레이 주식회사 | Liquid Crystal Display Device Including Compensating Circuit For Blue Light |
| CN104933998B (en) * | 2014-03-21 | 2017-09-22 | 联咏科技股份有限公司 | Gamma voltage generating apparatus and the method for producing gamma electric voltage |
| CN104978935B (en) * | 2014-04-02 | 2018-03-27 | 奇景光电股份有限公司 | Source electrode driver and the display panel using this source electrode driver |
| CN105161070A (en) * | 2015-10-30 | 2015-12-16 | 京东方科技集团股份有限公司 | Driving circuit used for display panel and display device |
| CN205069086U (en) * | 2015-10-30 | 2016-03-02 | 京东方科技集团股份有限公司 | A drive circuit and display device for display panel |
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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. |
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