CN107799085A - Liquid crystal panel drive circuit, liquid crystal panel and liquid crystal panel drive method - Google Patents
Liquid crystal panel drive circuit, liquid crystal panel and liquid crystal panel drive method Download PDFInfo
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- CN107799085A CN107799085A CN201711168181.9A CN201711168181A CN107799085A CN 107799085 A CN107799085 A CN 107799085A CN 201711168181 A CN201711168181 A CN 201711168181A CN 107799085 A CN107799085 A CN 107799085A
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- Prior art keywords
- power management
- voltage
- liquid crystal
- integration module
- crystal panel
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Classifications
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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
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3696—Generation of voltages supplied to electrode 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
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/04—Display protection
Abstract
The present invention provides a kind of liquid crystal panel drive circuit, liquid crystal panel and liquid crystal panel drive method.The liquid crystal panel drive circuit includes comparator (1) and door (2), time schedule controller (3) and power management integration module (4)；The positive input terminal access external input voltage (VIN) of the comparator (1), the low pressure shut-off voltage (UVLO) of negative input end access power management integration module (4), output end are electrically connected with the first input end (A) with door (2)；The supply voltage (VDD) with the second input of door (2) (B) access power management integration module (4) output, output end (K) are electrically connected with the reset pin (31) of time schedule controller (3).The liquid crystal panel drive circuit enables to time schedule controller (3) still can be with normal reset in the case where external input voltage (VIN) fluctuates, normal output.
Description
Technical field
The present invention relates to electronic technology field, more particularly to a kind of liquid crystal panel drive circuit, liquid crystal panel and liquid crystal surface
Plate driving method.
Background technology
Liquid crystal panel (Liquid Crystal Display, LCD), have thin fuselage, power saving, radiationless etc. numerous excellent
Point, obtain widely applying, such as：LCD TV, smart mobile phone, digital camera, tablet personal computer, computer screen or notes
This computer screen etc., occupies an leading position in flat display field.
Liquid crystal panel is mainly by a thin-film transistor array base-plate (Thin Film Transistor Array
Substrate, TFT Array Substrate), a color membrane substrates (Color Filter, CF) and one be configured at two substrates
Between liquid crystal layer (Liquid Crystal Layer) formed, its operation principle be by drive circuit provide driving voltage and will
Driving voltage applies to the rotation of the liquid crystal molecule of liquid crystal layer is controlled on two substrates, and the light of backlight module is reflected into production
Raw picture.
Time schedule controller (Time-Controller, TCON), also known as logic card or control board, it is liquid crystal panel driving electricity
A critical component in road, the LVDS signals for mainboard to be sent are converted to liquid crystal panel and show required raster data model letter
Number and source drive signal, the conversion for completing LVDS to MINI-LVDS exports, while exports raster data model, needed for source drive
Various control sequentials.
Power management integrated circuit (Power Management IC, PMIC) is also one in liquid crystal panel drive circuit
Individual critical component.PMIC has low pressure shut-off (UVLO) voltage, and when the voltage for inputting PMIC is higher than UVLO voltages, PMIC is just
Often work, and when the voltage for inputting PMIC is less than UVLO voltages, PMIC is closed, and stops output voltage, can so be ensured
PMIC is unlikely to be damaged in supply voltage deficiency.
Run into the unstable situation of external input voltage unavoidably during user uses liquid crystal panel (such as TV), cause
Voltage die and then recovery, because the time of this voltage die is too short, PMIC is to close moment then to restart, each defeated
Going out voltage can not all may discharge completely.Requirement of reset (Reset) pin of time schedule controller to voltage can be stricter,
In the case of voltage die and then recovery, if the supply voltage (VDD) of PMIC outputs and core voltage (Vcore) are not discharged
Completely, then turn back on, the voltage of the reset pin of time schedule controller may be because does not drop to below 0.9V completely, and does not do
Method completes homing action, causes time schedule controller operation irregularity, output abnormality, and picture exception accordingly occurs in liquid crystal panel, very
It may extremely cause liquid crystal panel irreversible damage occur, have a strong impact on Consumer's Experience.
The content of the invention
It is an object of the invention to provide a kind of liquid crystal panel drive circuit, enables to time schedule controller in outside input
Still can be with normal reset in the case of voltage pulsation, normal output.
Another object of the present invention is to provide a kind of liquid crystal panel, its time schedule controller can not be by external input voltage
The influence normal reset of fluctuation.
The present invention also aims to provide a kind of liquid crystal panel drive method, can solve the problem that because external input voltage fluctuates
Cause the irreducible problem of time schedule controller.
To achieve the above object, present invention firstly provides a kind of liquid crystal panel drive circuit, including comparator, with door, when
Sequence controller and power management integration module；
The positive input terminal access external input voltage of the comparator, negative input end access the low of power management integration module
Pressure shut-off voltage, output end are electrically connected with the first input end with door；It is described to access power supply pipe with the second input of door
The supply voltage of integration module output is managed, output end is electrically connected with the reset pin of time schedule controller.
Wherein, the power supply electricity for accessing the output of power management integration module by a RC circuits with the second input of door
Pressure；
The RC circuits include the resistance and electric capacity of series connection；One end access power management integration module output of the resistance
Supply voltage, the other end is electrically connected with the first pole plate of the electric capacity；The second pole plate ground connection of the electric capacity；
First pole plate of the other end and the electric capacity that the resistance is electrically connected with the second input of door.
Wherein, the low pressure when external input voltage is normal higher than the power management integration module turns off voltage, institute
It is high level to state the supply voltage that power management integration module normally exports.
The present invention also provides a kind of liquid crystal panel, including liquid crystal panel drive circuit, the liquid crystal panel drive circuit bag
Include comparator and door, time schedule controller and power management integration module；
The positive input terminal access external input voltage of the comparator, negative input end access the low of power management integration module
Pressure shut-off voltage, output end are electrically connected with the first input end with door；It is described to access power supply pipe with the second input of door
The supply voltage of integration module output is managed, output end is electrically connected with the reset pin of time schedule controller.
Wherein, the power supply electricity for accessing the output of power management integration module by a RC circuits with the second input of door
Pressure；
The RC circuits include the resistance and electric capacity of series connection；One end access power management integration module output of the resistance
Supply voltage, the other end is electrically connected with the first pole plate of the electric capacity；The second pole plate ground connection of the electric capacity；
First pole plate of the other end and the electric capacity that the resistance is electrically connected with the second input of door.
Wherein, the low pressure when external input voltage is normal higher than the power management integration module turns off voltage, institute
It is high level to state the supply voltage that power management integration module normally exports.
The present invention also provides a kind of liquid crystal panel drive method, including：
Compare external input voltage and the height of the low pressure shut-off voltage of power management integration module, obtain comparative result；
One data signal is exported according to the comparative result；
The supply voltage of the data signal and the output of power management integration module is subjected to logical operation；
The result of the logical operation is exported to the reset pin of time schedule controller, when the result of the logical operation is
During high level, the time schedule controller performs homing action.
Wherein, described the step of exporting a data signal according to the comparative result, specifically includes：
When comparative result is that the external input voltage turns off voltage higher than the low pressure of the power management integration module,
Export high level signal；
When comparative result is that the external input voltage turns off less than or equal to the low pressure of the power management integration module
During voltage, low level signal is exported.
Wherein, the external input voltage is performed by comparator and the low pressure of the power management integration module is closed
Power off the height of pressure.
Wherein, the step of supply voltage of the data signal and the output of power management integration module being subjected to logical operation
Specifically include：
The supply voltage of the data signal and the output of power management integration module is subjected to logic and operation.
Beneficial effects of the present invention：Liquid crystal panel drive circuit and liquid crystal panel provided by the invention, set the comparison
The positive input terminal access external input voltage of device, the low pressure shut-off voltage of negative input end access power management integration module, output
End is electrically connected with the first input end with door, the access power management integration module output of described and the second input of door
Supply voltage, output end are electrically connected with the reset pin of time schedule controller；Fall below or wait when the external input voltage is prominent
When the low pressure of power management integration module turns off voltage, the output end output low level of the comparator, the output end with door
Low level is exported to the reset pin of the time schedule controller, and mould is integrated when the external input voltage returns to power management
When more than the low pressure shut-off voltage of block, the output end output high level of the comparator is described to export high electricity with the output end of door
Put down to the reset pin of the time schedule controller, enable to time schedule controller still may be used in the case of outside input voltage fluctuation
With normal reset, normal output.Liquid crystal panel drive method provided by the invention, by comparing external input voltage and power supply pipe
The height of the low pressure shut-off voltage of integration module is managed, and causes the level of the reset pin of time schedule controller in external input voltage
To be low when low pressure less than or equal to power management integration module turns off voltage, recover in external input voltage to higher than power supply pipe
To be high when managing the low pressure shut-off voltage of integration module, can solve the problem that causes time schedule controller to answer because external input voltage fluctuates
The problem of position.
Brief description of the drawings
In order to be further understood that the feature of the present invention and technology contents, refer to below in connection with the detailed of the present invention
Illustrate and accompanying drawing, however accompanying drawing only provide with reference to and explanation use, be not used for being any limitation as the present invention.
In accompanying drawing,
Fig. 1 is the circuit diagram of the liquid crystal panel drive circuit of the present invention；
Fig. 2 is the flow chart of the liquid crystal panel drive method of the present invention.
Embodiment
Further to illustrate the technological means and its effect of the invention taken, below in conjunction with being preferable to carry out for the present invention
Example and its accompanying drawing are described in detail.
Referring to Fig. 1, present invention firstly provides a kind of liquid crystal panel drive circuit, including comparator 1 and door 2, sequential control
Device 3, power management integration module 4 and RC circuits 5 processed.
The RC circuits 5 include the resistance R and electric capacity C of series connection；One end access power management integration module of the resistance R
The supply voltage VDD of 4 outputs, the other end are electrically connected with the first pole plate of the electric capacity C；The second pole plate ground connection of the electric capacity C.
The positive input terminal access external input voltage VIN of the comparator 1, negative input end access power management integration module
4 low pressure shut-off voltage UVLO, output end are electrically connected with the first input end A with door 2.
First pole plate of the other end and the electric capacity C that the resistance R is electrically connected with the second input B of door 2
So as to access the supply voltage VDD of the output of power management integration module 4, the reset that output end K is electrically connected with time schedule controller 3 is drawn
Pin 31.
The power management integration module 4 has a characteristic：When the outside input electricity for inputting the power management module 4
When pressing VIN higher than its low pressure shut-off voltage UVLO, the normal power supply of power management integration module 4, the power supply of high level is exported
Voltage VDD, usually 3.3V；And when the external input voltage VIN is less than or equal to its low pressure shut-off voltage UVLO, it is described
Power management integration module 4 is closed, and is stopped output supply voltage VDD, can so be ensured that the power management module 4 is being powered
It is unlikely to be damaged during undertension.
Under normal circumstances：Low pressure shut-off electricity of the external input voltage VIN higher than the power management integration module 4
UVLO is pressed, the output end of the comparator 1 exports high level to described and door 2 first input end A；The power management integrates
The supply voltage VDD that module 4 exports is 3.3V high level, and is charged to the electric capacity C so that it is described with door 2 the
Two input B are also high level；Due to it is described with the first input end A of door 2 and the second input B be high level, it is described and
The output end K of door 2 accordingly exports high level to the reset pin 31 of the time schedule controller 3, the time schedule controller 3 and done normally
Homing action, normal output.
When the external input voltage VIN busts voltage is turned off to the low pressure less than or equal to power management integration module 4
During UVLO, the output end of the comparator 1 exports low level to described and door 2 first input end A；The power management integrates
Module 4 is closed, and stops output supply voltage VDD, but because the electric capacity C electric discharges in the RC circuits 5 are slower, in outside input electricity
Pressing can not discharge completely in the of short duration time of VIN busts so that described and the second input B of door 2 is still high level；By institute
It is low level to state with the first input end A of door 2, and the second input B is high level, described to export low level with the output end K of door 2
To the reset pin 31 of the time schedule controller 3.
The external input voltage VIN can be promptly restored to power management integration module 4 after living through of short duration bust
Low pressure shut-off more than voltage UVLO, now, the output end of the comparator 1 exports high level to described first defeated with door 2
Enter and hold A, the power management integration module 4 restarts, and the supply voltage VDD of output reverts to 3.3V high level and to institute
State electric capacity C to be charged so that described to keep high level with the second input B of door 2；Due to first input with door 2
It is high level to hold A and the second input B, described to export high level answering to the time schedule controller 3 with the output end K of door 2
Position pin 31, so as to the normal reset of time schedule controller 3, normal output.
The present invention also provides a kind of liquid crystal panel, including above-mentioned liquid crystal panel drive circuit as shown in Figure 1, when therein
Sequence controller 3 can not be fluctuated by external input voltage VIN is influenceed normal reset, and no longer the liquid crystal panel is driven herein
Circuit carries out repeated description.
Referring to Fig. 2, with reference to Fig. 1, based on the liquid crystal panel drive circuit, the present invention also provides a kind of liquid crystal panel and driven
Dynamic method, comprises the following steps：
Step S1, external input voltage VIN and the low pressure shut-off voltage UVLO of power management integration module 4 height are compared
It is low, obtain comparative result.
Specifically, step S1 is performed by the comparator 1 in the liquid crystal panel drive circuit compares outside input electricity
Press VIN and the low pressure shut-off voltage UVLO of power management integration module 4 height.
Step S2, a data signal is exported according to the comparative result.
Specifically, step S2 is exported by the comparator 1 in the liquid crystal panel drive circuit according to the comparative result
Corresponding data signal：When the comparative result is the low pressure that the external input voltage VIN is higher than power management integration module 4
When turning off voltage UVLO, the comparator 1 exports high level signal；And when the external input voltage VIN is less than or equal to electricity
During the low pressure shut-off voltage UVLO of source control integration module 4, the comparator 1 exports low level signal.
Step S3, the supply voltage VDD for exporting the data signal and power management integration module 4 carries out logic fortune
Calculate.
Specifically, step S3 by the liquid crystal panel drive circuit with door 2 by the data signal and power supply
Manage the supply voltage VDD that integration module 4 exports and carry out logic and operation.
Further, under normal circumstances：The external input voltage VIN is higher than the power management integration module 4
Low pressure turns off voltage UVLO, and the output end of the comparator 1 exports high level signal to described and door 2 first input end A；Institute
The supply voltage VDD that power management integration module 4 normally exports 3.3V high level is stated, and is charged to the electric capacity C so that
Described and the second input B of door 2 is also high level；It is with the first input end A of door 2 and the second input B due to described
High level, the result that logic and operation is done with door 2 is high level.
When the external input voltage VIN busts voltage is turned off to the low pressure less than or equal to power management integration module 4
During UVLO, the output end of the comparator 1 exports low level signal to described and door 2 first input end A；The power management
Integration module 4 is closed, and stops output supply voltage VDD, but because the electric capacity C electric discharges in the RC circuits 5 are slower, outside defeated
Entering can not discharge completely in the of short duration time of voltage VIN busts so that described and the second input B of door 2 is still high level；By
It is low level in the described and first input end A of door 2, the second input B is high level, described to do logic and operation with door 2
As a result it is low level.
The external input voltage VIN can be promptly restored to power management integration module 4 after living through of short duration bust
Low pressure shut-off more than voltage UVLO, now, the output end of the comparator 1 export high level signal to it is described with door 2 the
One input A, the power management integration module 4 restart, and the supply voltage VDD of output reverts to 3.3V high level simultaneously
Charged to the electric capacity C so that described to keep high level with the second input B of door 2；Due to described and door 2 first
Input A and the second input B is high level, and the result that logic and operation is done with door 2 is changed into high level again.
Step S4, the result of the logical operation is exported to the reset pin 31 of time schedule controller 3, when the logic is transported
When the result of calculation is high level, the time schedule controller 3 performs homing action.
Specifically, step S4 by the liquid crystal panel drive circuit with the output end K of door 2 by the logical AND
The result of computing is exported to the reset pin 31 of time schedule controller 3, and so, the time schedule controller 3 is not only defeated in the outside
Enter voltage VIN can normally perform under normal circumstances higher than the low pressure shut-off voltage UVLO of the power management integration module 4
Homing action, it is that first of short duration bust is rapid extensive again by external input voltage VIN that also fluctuation can occur in the external input voltage VIN
Homing action is performed in the case of low pressure shut-off more than the voltage UVLO for arriving power management integration module 4 again.
The liquid crystal panel drive method, closed by the low pressure for comparing external input voltage VIN and power management integration module 4
Power-off pressure UVLO height, and the level of the reset pin 31 of time schedule controller 3 is less than or is waited in outside input voltage VIN
It is low when the low pressure of power management integration module 4 turns off voltage UVLO, recovers in outside input voltage VIN to higher than power supply pipe
To be high when managing the low pressure shut-off voltage UVLO of integration module 4, can solve the problem that causes SECO because external input voltage VIN is fluctuated
3 irreducible problem of device.
In summary, liquid crystal panel drive circuit and liquid crystal panel of the invention, the positive input terminal of the comparator is set
External input voltage, the low pressure shut-off voltage of negative input end access power management integration module are accessed, output end is electrically connected with institute
The first input end with door is stated, the supply voltage with the access power management integration module output of the second input of door is defeated
Go out the reset pin that end is electrically connected with time schedule controller；When the external input voltage bust is to being less than or equal to power management collection
When turning off voltage into the low pressure of module, the output end output low level of the comparator, with the output end of door output low level extremely
The reset pin of the time schedule controller, and when the external input voltage returns to the low pressure shut-off of power management integration module
When more than voltage, the output end output high level of the comparator is described to export high level to the sequential with the output end of door
The reset pin of controller, enable to time schedule controller in the case of outside input voltage fluctuation still can with normal reset,
Normal output.The liquid crystal panel drive method of the present invention is low with power management integration module by comparing external input voltage
The height of pressure shut-off voltage, and cause the level of the reset pin of time schedule controller to be less than or equal to power supply in external input voltage
It is low during the low pressure shut-off voltage of management integration module, recovers in external input voltage to low higher than power management integration module
It is height during pressure shut-off voltage, can solve the problem that because external input voltage fluctuation causes the irreducible problem of time schedule controller.
It is described above, for the person of ordinary skill of the art, can be with technique according to the invention scheme and technology
Other various corresponding changes and deformation are made in design, and all these changes and deformation should all belong to the appended right of the present invention
It is required that protection domain.
Claims (10)
1. a kind of liquid crystal panel drive circuit, it is characterised in that including comparator (1) and door (2), time schedule controller (3) and electricity
Source control integration module (4)；
The positive input terminal access external input voltage (VIN) of the comparator (1), negative input end access power management integration module
(4) low pressure shut-off voltage (UVLO), output end are electrically connected with the first input end (A) with door (2)；Described and door (2)
The second input (B) access power management integration module (4) output supply voltage (VDD), output end (K) be electrically connected with when
The reset pin (31) of sequence controller (3).
2. liquid crystal panel drive circuit as claimed in claim 1, it is characterised in that described and the second input of door (2) (B)
The supply voltage (VDD) of power management integration module (4) output is accessed by a RC circuits (5)；
The RC circuits (5) include the resistance (R) and electric capacity (C) of series connection；One end access power management of the resistance (R) integrates
The supply voltage (VDD) of module (4) output, the other end are electrically connected with the first pole plate of the electric capacity (C)；The electric capacity (C)
Second pole plate is grounded；
The other end of described and the second input of door (2) (B) electric connection resistance (R) and the first of the electric capacity (C)
Pole plate.
3. liquid crystal panel drive circuit as claimed in claim 1, it is characterised in that the external input voltage (VIN) is normal
When higher than the power management integration module (4) low pressure shut-off voltage (UVLO), the power management integration module (4) is normal
The supply voltage (VDD) of output is high level.
A kind of 4. liquid crystal panel, it is characterised in that including liquid crystal panel drive circuit, the liquid crystal panel drive circuit include than
Compared with device (1) and door (2), time schedule controller (3) and power management integration module (4)；
The positive input terminal access external input voltage (VIN) of the comparator (1), negative input end access power management integration module
(4) low pressure shut-off voltage (UVLO), output end are electrically connected with the first input end (A) with door (2)；Described and door (2)
The second input (B) access power management integration module (4) output supply voltage (VDD), output end (K) be electrically connected with when
The reset pin (31) of sequence controller (3).
5. liquid crystal panel as claimed in claim 4, it is characterised in that described to pass through a RC with the second input of door (2) (B)
The supply voltage (VDD) of circuit (5) access power management integration module (4) output；
The RC circuits (5) include the resistance (R) and electric capacity (C) of series connection；One end access power management of the resistance (R) integrates
The supply voltage (VDD) of module (4) output, the other end are electrically connected with the first pole plate of the electric capacity (C)；The electric capacity (C)
Second pole plate is grounded；
The other end of described and the second input of door (2) (B) electric connection resistance (R) and the first of the electric capacity (C)
Pole plate.
6. liquid crystal panel as claimed in claim 4, it is characterised in that the external input voltage (VIN) is higher than institute when normal
State the low pressure shut-off voltage (UVLO) of power management integration module (4), the electricity that the power management integration module (4) normally exports
Source voltage (VDD) is high level.
A kind of 7. liquid crystal panel drive method, it is characterised in that including：
Compare external input voltage (VIN) and the height of the low pressure shut-off voltage (UVLO) of power management integration module (4), obtain
Comparative result；
One data signal is exported according to the comparative result；
The supply voltage (VDD) of the data signal and power management integration module (4) output is subjected to logical operation；
The result of the logical operation is exported to the reset pin of time schedule controller (3) (31), when the knot of the logical operation
When fruit is high level, the time schedule controller (3) performs homing action.
8. liquid crystal panel drive method as claimed in claim 7, it is characterised in that described to export one according to the comparative result
The step of data signal, specifically includes：
When comparative result is that the external input voltage (VIN) turns off electricity higher than the low pressure of the power management integration module (4)
When pressing (UVLO), high level signal is exported；
When comparative result is the low pressure that the external input voltage (VIN) is less than or equal to the power management integration module (4)
When turning off voltage (UVLO), low level signal is exported.
9. liquid crystal panel drive method as claimed in claim 7, it is characterised in that
The low pressure of the external input voltage (VIN) and the power management integration module (4) is performed by comparator (1)
Turn off the height of voltage (UVLO).
10. liquid crystal panel drive method as claimed in claim 7, it is characterised in that described by the data signal and power supply
The step of supply voltage (VDD) of management integration module (4) output carries out logical operation specifically includes：
The supply voltage (VDD) of the data signal and power management integration module (4) output is subjected to logic and operation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711168181.9A CN107799085B (en) | 2017-11-21 | 2017-11-21 | Liquid crystal panel driving circuit, liquid crystal panel and liquid crystal panel driving method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711168181.9A CN107799085B (en) | 2017-11-21 | 2017-11-21 | Liquid crystal panel driving circuit, liquid crystal panel and liquid crystal panel driving method |
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| CN107799085A true CN107799085A (en) | 2018-03-13 |
| CN107799085B CN107799085B (en) | 2020-06-30 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109003590A (en) * | 2018-08-30 | 2018-12-14 | 京东方科技集团股份有限公司 | Discharge circuit and display device |
| CN109036302A (en) * | 2018-07-20 | 2018-12-18 | 深圳市华星光电半导体显示技术有限公司 | Liquid crystal display |
| WO2020062496A1 (en) * | 2018-09-27 | 2020-04-02 | 深圳市华星光电技术有限公司 | Driving circuit |
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| CN109003590A (en) * | 2018-08-30 | 2018-12-14 | 京东方科技集团股份有限公司 | Discharge circuit and display device |
| WO2020062496A1 (en) * | 2018-09-27 | 2020-04-02 | 深圳市华星光电技术有限公司 | Driving circuit |
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| Publication number | Publication date |
|---|---|
| CN107799085B (en) | 2020-06-30 |
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Address after: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Patentee after: TCL Huaxing Photoelectric Technology Co.,Ltd. Address before: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Patentee before: Shenzhen China Star Optoelectronics Technology Co.,Ltd. |