CN109658902B - Liquid crystal display device and the method and electronic equipment for improving panel flash - Google Patents
Liquid crystal display device and the method and electronic equipment for improving panel flash Download PDFInfo
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- CN109658902B CN109658902B CN201910182734.9A CN201910182734A CN109658902B CN 109658902 B CN109658902 B CN 109658902B CN 201910182734 A CN201910182734 A CN 201910182734A CN 109658902 B CN109658902 B CN 109658902B
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- 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
-
- 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
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
-
- 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
- G09G3/3696—Generation of voltages supplied to electrode drivers
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal (AREA)
Abstract
The present invention proposes a kind of liquid crystal display device and improves the method and electronic equipment of panel flash, is related to field of liquid crystal display, this liquid crystal display device, comprising: array substrate, including lighting check plate, transistor modular, block of pixels and data drive circuit；Printed circuit board, including public electrode voltages control module, level conversion unit and public electrode voltages output module；Flexible circuit board.The control signal of the control terminal connection level conversion unit output of transistor modular, the input terminal and block of pixels of transistor modular are all connected to data drive circuit, and lighting checks that the output end of plate and transistor modular is all connected with public electrode voltages output module；Public electrode voltages output module is controlled when public electrode voltages control module liquid crystal display device powers on exports effective public electrode voltages and the control public electrode voltages output module ground connection in liquid crystal display device power-off.
Description
Technical field
The invention belongs to field of liquid crystal display, and in particular to a kind of liquid crystal display device and improve panel flash method and
Electronic equipment.
Background technique
The characteristics such as IGZO (indium gallium zinc oxide) electron mobility with higher and lower leakage current are produced in panel
In have and save the distinctive advantage such as power consumption.
But there are more requirements for power-off sequential of the lower leakage current to panel, it is therefore desirable to source signal and
Vcom signal carries out special discharge treatment, if panel power on in power process, source electrode and Vcom current potential power-on and power-off timing
Difference will cause switching on and shutting down panel to flash white to shield phenomenon.
Fig. 1 is panel waypoint lamp frame schematic diagram, including array substrate (TFT), flexible circuit board in the prior art
(FPC) and by flexible circuit board the printed circuit board (PWB) being connected in array substrate.Wherein, include in array substrate
Lighting checks that plate (R_O, G_O, B_O, R_E, G_E and B_E), switching signal be made of transistor Q1 ~ Q12, data-driven are electric
Road (Source Driver IC) and block of pixels.Wherein, R_O, G_O, B_O are separately connected the odd column of block of pixels, R_
E, G_E, B_E connect the even column of block of pixels；The low level of grid connection power control circuit (PMIC) output of transistor
Signal (VGL), the drain junction lamp inspection of transistor look into plate, the source electrode connection block of pixels and data-driven electricity of transistor
Road.Entire lighting checks that plate and cabling are distributed in close to the side of printed circuit board, to reduce away line impedence.
Switching signal is drawn high during panel segmentation engineering lighting, the switches such as transistor Q1 ~ Q12 are opened, lighting at this time
Check that the data voltage writing pixel module of needs is realized segmentation engineering lighting confirmation with this by plate；When subsequent panel works normally
Switching signal is drawn into ground, transistor Q1 ~ Q12 is closed at this time, and lighting inspection plate is emptied, and the source electrode of transistor is by data-driven
Circuit drives complete ground connection.
It is to be grounded by data drive circuit inner ground come the source electrode of complete independently transistor when powering off in the prior art
, but it is practical it is affected during, data drive circuit, which is made, can have certain fluctuation, and when fluctuation can be to every data-driven
The drawing of circuit ability impact, it is thus possible to will cause the block flicker problem of panel.
Summary of the invention
The present invention provides a kind of liquid crystal display device and improves the method and electronic equipment of panel flash, this liquid crystal display
Device powers on or draws ground while checking that plate realizes data voltage and public electrode voltages using the lighting for being segmented engineering on panel,
To solve public electrode voltages, there are the flicker problems of panel-switch machine caused by potential difference with data voltage.
Technical scheme is as follows:
The invention discloses a kind of liquid crystal display devices, comprising:
Array substrate, including lighting check plate, transistor modular, block of pixels and are used for output data voltage to pixel
The data drive circuit of module；
Printed circuit board including public electrode voltages control module, outputs control signals to the level conversion of array substrate
Unit and public electrode voltages output module for exporting public electrode voltages to array substrate；
Flexible circuit board connects the array substrate and printed circuit board.
Wherein, the control terminal of transistor modular connects the control signal of the level conversion unit output, transistor modular
Input terminal and block of pixels be all connected to data drive circuit, the lighting checks the output end of plate and transistor modular
It is all connected with public electrode voltages output module.
The public electrode voltages control module controls public electrode voltages output module when liquid crystal display device powers on
Export effective public electrode voltages and the control public electrode voltages output module ground connection in liquid crystal display device power-off；It is logical
Lighting is crossed to check plate for the data voltage and public electrode voltages that data drive circuit exports while powering on or being grounded.
Preferably, the public electrode voltages control module includes the 13rd transistor, the 14th transistor, first capacitor
And first resistor.
The grid connection public electrode voltages of 13rd transistor control signal, the source electrode connection of the 13rd transistor
Ground wire, the drain electrode connection first resistor of the 13rd transistor are simultaneously connected to operating voltage；The grid of 14th transistor connects
Operating voltage (or drain electrode of the 13rd transistor) is connect, the source electrode and drain electrode of the 14th transistor is separately connected ground wire and common electrical
The output end of pole tension control module；First pole plate of the first capacitor connects the grid of the 14th transistor, first capacitor
The second pole plate connect the 14th transistor source electrode.
Preferably, the lighting checks that plate includes 6 checkpoints, and block of pixels includes multiple pixel groups, each pixel group
Include 3 column RGB sub-pixel units.
Wherein, preceding 3 checkpoints are sequentially connected 3 column RGB of odd pixel group in block of pixels by transistor modular
The corresponding data line of pixel unit, rear 3 checkpoints are sequentially connected 3 of even pixel group in block of pixels by transistor modular
Arrange the corresponding data line of RGB sub-pixel unit.
Preferably, the transistor modular includes N(N >=3n+3, and n is positive integer) a transistor, the quantity N of transistor with
The quantity of RGB sub-pixel unit is equal in block of pixels.
Wherein, the grid of each transistor connects the control signal of the level conversion unit output, each transistor
Source electrode connects the corresponding data line of a RGB sub-pixel unit in block of pixels, and the drain electrode of each transistor connects the point
Lamp inspection looks into a corresponding checkpoint on plate.
Preferably, RGB sub-pixel unit is matrix arrangement, and data drive circuit connects multiple data lines, every data line
One column RGB sub-pixel unit of connection.
It preferably, further include gate driving circuit；Gate driving circuit connects a plurality of grid line, every grid line connection one
Row block of pixels.
The invention also discloses a kind of methods for improving panel flash to work as panel suitable for above-mentioned liquid crystal display device
When powering on, comprising steps of
S11: public electrode voltages control module controls public electrode output module and exports effective public electrode voltages extremely
Lighting checks plate；
S12: opening transistor modular, and data drive circuit is connected to public electrode voltages output module, data-driven electricity
The data voltage of road output is equal with public electrode voltages.
When the data voltage of data drive circuit output is equal with the public electrode voltages, comprising steps of
S21: the control signal of level conversion unit output is low potential, and control signal control transistor modular is closed.
When panel power-off, comprising steps of
S31: public electrode voltages control module controls public electrode voltages output module ground connection, while level conversion unit
The control signal of output is high potential；
S32: control signal control transistor modular is opened, and data drive circuit checks plate and public electrode electricity by lighting
Press output module connection；
S33: the data drive circuit inner ground, data drive circuit and the public electrode voltages output module are total
With ground connection electric discharge.
The invention also discloses a kind of electronic equipment, including above-mentioned liquid crystal display device.
Technical solution provided by the invention has the advantages that the present invention by checking that plate will using lighting on panel
Ground is powered on or drawn while data voltage and public electrode voltages, to solve public electrode voltages and data voltage in the presence of electricity
The flicker problem of IGZO panel-switch machine caused by potential difference.
Detailed description of the invention
Below by clearly understandable mode, preferred embodiment is described with reference to the drawings, the present invention is given furtherly
It is bright.
Fig. 1 is panel waypoint lamp frame schematic diagram in the prior art；
Fig. 2 is panel waypoint lamp frame schematic diagram of the present invention；
Fig. 3 is control signal power-on and power-off time diagram.
Specific embodiment
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, Detailed description of the invention will be compareed below
A specific embodiment of the invention.It should be evident that drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, and obtain other embodiments.
To make simplified form, part related to the present invention is only schematically shown in each figure, they are not represented
Its practical structures as product.In addition, there is identical structure or function in some figures so that simplified form is easy to understand
Component only symbolically depicts one of those, or has only marked one of those.Herein, "one" is not only indicated
" only this ", can also indicate the situation of " more than one ".
Technical solution of the present invention is discussed in detail with specific embodiment below.
The present invention provides a kind of liquid crystal display device, as shown in Figure 2, comprising:
Array substrate (TFT) 03, printed circuit board (PWB) 02 and connection array substrate (TFT) 03 and printed circuit board
(PWB) 02 flexible circuit board (FPC) 01.
The printed circuit board 02 includes public electrode voltages control module (PMIC) 21, level conversion unit (Level
Shifter) 22 and public electrode voltages output module 23, public electrode voltages output module 23 is for exporting public electrode electricity
Press Vcom to array substrate 03, the output of level conversion unit 22 control signal control to array substrate 03；Public electrode voltages
Control module 21, which is used to control public electrode voltages output module 23 when panel powers on, exports effective public electrode voltages
Vcom, and for the control ground connection of public electrode voltages output module 23 in panel power-off；
The array substrate 03 includes that lighting checks plate 31, transistor modular 32, block of pixels 33 and data-driven electricity
Road 34；Data drive circuit 34 is for output data voltage to block of pixels 33；
Wherein, the control terminal of transistor modular 32 connects the control signal control that the level conversion unit 22 exports
(being control signal power-on and power-off time diagram shown in Fig. 3), the input terminal and block of pixels 33 of transistor modular 32 are all connected with
To data drive circuit 34, the lighting checks that the output end of plate 313 and transistor modular 32 is all connected with public electrode voltages
Output module 23.
When panel powers on, public electrode voltages control module 21 controls the public electrode voltages output module 23 and exports
Effective public electrode voltages Vcom checks plate 31 to lighting, opens the transistor modular 32, the data drive circuit 34
It is connected to the public electrode voltages output module 23, the data voltage and the common electrical that the data drive circuit 34 exports
Pole tension Vcom rises to the current potential of public electrode voltages Vcom simultaneously.
When the data voltage of the data drive circuit 34 output is equal with the public electrode voltages Vcom, the electricity
The control signal control that flat converting unit 22 exports is low potential, and the control signal control controls the crystal pipe die
Block 32 is closed；Data drive circuit 34 is normally exported.
When panel power-off, public electrode voltages control module 21 controls the public electrode voltages output module 23 and connects
Ground, the control signal control that the level conversion unit 22 exports are high potential, and the control signal control controls institute
The opening of transistor modular 32 is stated, the data drive circuit 34 checks that plate 31 and the public electrode voltages export mould by lighting
Block 23 is connected to, 34 inner ground of data drive circuit, data drive circuit 34 and the public electrode voltages output module
23 common ground connection electric discharges.
Wherein, the public electrode voltages control module 21 includes the 13rd transistor Q13, the 14th transistor Q14, the
One capacitor C1 and first resistor R1；
The grid connection public electrode voltages of the 13rd transistor Q13 control signal com-c, the 13rd transistor
The source electrode of Q13 connects ground wire GND, and the drain electrode connection first resistor R1 of the 13rd transistor Q13 is simultaneously connected to operating voltage VDD；
The drain electrode of the grid connection operating voltage VDD(or the 13rd transistor Q13 of the 14th transistor Q14), the
The source electrode and drain electrode of 14 transistor Q14 is separately connected the output end of ground wire GND and public electrode voltages control module 21；
The first pole plate of the first capacitor C1 connects the grid of the 14th transistor, the second pole plate connection of first capacitor
The source electrode of 14th transistor.
Wherein, the lighting checks that plate 31 includes 6 checkpoints, and block of pixels 33 includes multiple pixel groups, each pixel
Group includes 3 column RGB sub-pixel units.Preceding 3 checkpoints are sequentially connected odd number picture in block of pixels 33 by transistor modular 32
The corresponding data line of 3 column RGB sub-pixel units of element group, rear 3 checkpoints are sequentially connected pixel mould by transistor modular 32
The corresponding data line of 3 column RGB sub-pixel units of even pixel group in block 33.
The transistor modular 33 includes N(N >=3n+3, and n is positive integer) a transistor.Transistor in transistor modular 32
Quantity N it is equal with the quantity of RGB sub-pixel unit in block of pixels 33.Wherein, the grid of each transistor connects the electricity
The control signal control that flat converting unit 22 exports, the source electrode of each transistor connect the RGB sub-pixel in block of pixels 33
The corresponding data line of unit, the drain electrode of each transistor connect the lighting and check corresponding checkpoint on plate 31.
Preferably, RGB sub-pixel unit is matrix arrangement, and data drive circuit 34 connects multiple data lines, every data
One column RGB sub-pixel unit of line connection.
In addition, the liquid crystal display device further include: gate driving circuit (not shown)；Gate driving circuit connection
A plurality of grid line, every grid line connect a line RGB sub-pixel unit.
Here is the description of specific work process of the present invention:
When panel powers on, output public electrode voltages control signal com-c is high potential, at this time the 13rd transistor
Q13 is opened, and the 14th transistor Q14 is then in an off state, and public electrode voltages output module 23 exports effective common electrical
Pole tension Vcom is normally powered on.When the control signal control that level conversion unit 22 exports is high potential, transistor modular
Grid be also all high potential, transistor modular is opened, the data voltage and the public electrode that data drive circuit 34 exports
Voltage output module 23 is connected to, and the data voltage in panel and public electrode voltages Vcom rise to public electrode electricity simultaneously at this time
Press the current potential of Vcom.
After the data voltage current potential in panel is equal with the current potential of public electrode voltages Vcom, level conversion unit 22 is defeated
Control signal control out is low potential, and transistor modular turns off at this time, and data drive circuit and lighting check that plate disconnects,
Data drive circuit releases high impedance status and starts to be normally carried out output.Simultaneously due to data voltage and public electrode voltages Vcom
Power on that there are panel flash phenomenons caused by potential difference with data voltage so solving when powering on public electrode voltages Vcom.
When power-off, output public electrode voltages control signal com-c is low potential, and the 13rd transistor Q13 is turned off, the tenth
Four transistor Q14 are then in the open state, and the control signal control that level conversion unit 22 exports is high potential, public at this time
Common-battery pole tension Vcom is connected to again with the data voltage that data drive circuit 34 exports, the data drive circuit 34 with it is public
Electrode voltage Vcom reaches common ground connection electric discharge by 34 inner ground of data drive circuit, thus only data before solving
The flicker problem of panel when driving circuit powers off caused by drawing drawing ground caused by ground incomplete.
The invention also discloses a kind of methods for improving panel flash, suitable for above-mentioned liquid crystal display device:
When panel powers on, comprising steps of
S11: public electrode voltages control module 21 controls public electrode output module 23 and exports effective public electrode electricity
Press Vcom to lighting inspection plate 31；
S12: opening transistor modular 32, and data drive circuit 34 is connected to public electrode voltages output module 23, data
The data voltage that driving circuit 34 exports is equal with public electrode voltages Vcom；
When the data voltage that data drive circuit 34 exports is equal with the public electrode voltages Vcom, comprising steps of
S21: the control signal control that level conversion unit 22 exports is low potential, and control signal control control is brilliant
Body tube module 32 is closed；
When panel power-off, comprising steps of
S31: public electrode voltages control module 21 controls public electrode voltages output module 23 and is grounded, while level conversion
The control signal control that unit 22 exports is high potential；
S32: control signal control control transistor modular 32 is opened, and data drive circuit 34 checks plate by lighting
31 are connected to public electrode voltages output module 23；
S33: 34 inner ground of data drive circuit, data drive circuit 34 and the public electrode voltages export mould
The ground connection electric discharge jointly of block 23.
The invention also discloses a kind of electronic equipment, including above-mentioned liquid crystal display device.
It should be noted that the above is only a preferred embodiment of the present invention, but the present invention is not limited to above-mentioned
Detail in embodiment, it is noted that for those skilled in the art, in technology of the invention
In conception range, various improvements and modifications may be made without departing from the principle of the present invention, to technology of the invention
Scheme carries out a variety of equivalents, these are improved, retouching and equivalents also should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of liquid crystal display device characterized by comprising
Array substrate, including lighting check plate, transistor modular, block of pixels and are used for output data voltage to block of pixels
Data drive circuit；
Printed circuit board including public electrode voltages control module, outputs control signals to the level conversion unit of array substrate
And the public electrode voltages output module for exporting public electrode voltages to array substrate；
Flexible circuit board connects the array substrate and printed circuit board；
Wherein, the control terminal of transistor modular connects the control signal of level conversion unit output, transistor modular it is defeated
Enter end and block of pixels is all connected to data drive circuit, the lighting checks that the output end of plate and transistor modular connects
Connect public electrode voltages output module；
The public electrode voltages control module controls the output of public electrode voltages output module when liquid crystal display device powers on
Effective public electrode voltages and the control public electrode voltages output module ground connection in liquid crystal display device power-off；Pass through a little
Lamp inspection looks into plate for data voltage and public electrode voltages that data drive circuit exports while powering on or being grounded.
2. a kind of liquid crystal display device according to claim 1, which is characterized in that the public electrode voltages control module
Including the 13rd transistor, the 14th transistor, first capacitor and first resistor；
The grid connection public electrode voltages of 13rd transistor control signal, and the source electrode of the 13rd transistor connects ground
Line, the drain electrode connection first resistor of the 13rd transistor are simultaneously connected to operating voltage；
The grid of 14th transistor connects operating voltage, the source electrode and drain electrode of the 14th transistor be separately connected ground wire and
The output end of public electrode voltages control module；
First pole plate of the first capacitor connects the grid of the 14th transistor, the second pole plate connection the 14th of first capacitor
The source electrode of transistor.
3. a kind of liquid crystal display device according to claim 1, which is characterized in that the lighting checks that plate includes 6 inspections
It makes an inventory of, block of pixels includes multiple pixel groups, and each pixel group includes 3 column RGB sub-pixel units；
Wherein, preceding 3 checkpoints are sequentially connected 3 column RGB sub-pixels of odd pixel group in block of pixels by transistor modular
The corresponding data line of unit, rear 3 checkpoints are sequentially connected 3 column of even pixel group in block of pixels by transistor modular
The corresponding data line of RGB sub-pixel unit.
4. a kind of liquid crystal display device according to claim 3, which is characterized in that the transistor modular include N(N >=
3n+3, n are positive integer) a transistor, the quantity N of transistor is equal with the quantity of RGB sub-pixel unit in block of pixels；
Wherein, the grid of each transistor connects the control signal of the level conversion unit output, the source electrode of each transistor
The corresponding data line of a RGB sub-pixel unit in block of pixels is connected, the drain electrode of each transistor connects described lamp inspection
Look into a corresponding checkpoint on plate.
5. a kind of liquid crystal display device according to claim 3, which is characterized in that RGB sub-pixel unit is matrix arrangement,
Data drive circuit connects multiple data lines, every one column RGB sub-pixel unit of data line connection.
6. a kind of liquid crystal display device according to claim 5, which is characterized in that further include gate driving circuit；Grid
Driving circuit connects a plurality of grid line, and every grid line connects one-row pixels module.
7. a kind of method for improving panel flash, suitable for liquid crystal display device described in the claims 1-6, feature exists
In:
When panel powers on, comprising steps of
S11: public electrode voltages control module controls public electrode output module and exports effective public electrode voltages to lighting
Check plate；
S12: opening transistor modular, and data drive circuit is connected to public electrode voltages output module, and data drive circuit is defeated
Data voltage out is equal with public electrode voltages；
When the data voltage of data drive circuit output is equal with the public electrode voltages, comprising steps of
S21: the control signal of level conversion unit output is low potential, and control signal control transistor modular is closed；
When panel power-off, comprising steps of
S31: public electrode voltages control module controls public electrode voltages output module ground connection, while level conversion unit exports
Control signal be high potential；
S32: control signal control transistor modular is opened, and data drive circuit checks that plate and public electrode voltages are defeated by lighting
Module is connected to out；
S33: the data drive circuit inner ground, data drive circuit connect jointly with the public electrode voltages output module
Ground electric discharge.
8. a kind of electronic equipment, including liquid crystal display device described in the claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910182734.9A CN109658902B (en) | 2019-03-12 | 2019-03-12 | Liquid crystal display device and the method and electronic equipment for improving panel flash |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910182734.9A CN109658902B (en) | 2019-03-12 | 2019-03-12 | Liquid crystal display device and the method and electronic equipment for improving panel flash |
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| CN109658902B true CN109658902B (en) | 2019-05-28 |
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| CN111312183B (en) * | 2019-11-13 | 2021-09-03 | Tcl华星光电技术有限公司 | Display device and driving method thereof |
| CN111897155B (en) * | 2020-09-03 | 2023-04-11 | 业成科技（成都）有限公司 | Array substrate and display panel |
| CN114267284B (en) * | 2021-12-31 | 2024-03-22 | 广东美的厨房电器制造有限公司 | Display control circuit, display device and integrated control chip |
| CN114708840B (en) * | 2022-03-31 | 2023-10-24 | 福州京东方光电科技有限公司 | Display driving method, driving circuit and display device |
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| CN100543530C (en) * | 2006-12-29 | 2009-09-23 | 群康科技(深圳)有限公司 | Liquid crystal indicator and display packing thereof |
| CN102290032A (en) * | 2010-06-18 | 2011-12-21 | 群康科技(深圳)有限公司 | Liquid crystal display |
| CN104616632B (en) * | 2015-02-16 | 2017-11-17 | 彩优微电子(昆山)有限公司 | A kind of liquid crystal display drive circuit and driving method for preventing lower electric ghost |
| CN106558289B (en) * | 2015-09-30 | 2019-06-18 | 鸿富锦精密工业（深圳）有限公司 | Liquid crystal display device and discharge control method |
| CN105632435B (en) * | 2016-01-05 | 2018-06-05 | 京东方科技集团股份有限公司 | Switching on and shutting down image retention eliminates circuit and the method for eliminating switching on and shutting down image retention |
| CN105632450B (en) * | 2016-04-07 | 2019-02-22 | 京东方科技集团股份有限公司 | A kind of bearing calibration of display panel and device |
| CN107633832A (en) * | 2017-10-25 | 2018-01-26 | 南京中电熊猫平板显示科技有限公司 | Liquid crystal display device and its driving method |
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Effective date of registration: 20200827 Address after: No.7 Tianyou Road, Qixia District, Nanjing City, Jiangsu Province Patentee after: NANJING CEC PANDA FPD TECHNOLOGY Co.,Ltd. Address before: Nanjing Crystal Valley Road in Qixia District of Nanjing City Tianyou 210033 Jiangsu province No. 7 Co-patentee before: NANJING CEC PANDA LCD TECHNOLOGY Co.,Ltd. Patentee before: NANJING CEC PANDA FPD TECHNOLOGY Co.,Ltd. Co-patentee before: Nanjing East China Electronic Information Technology Co.,Ltd. |
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