CN106157921B - A kind of voltage output control circuit and liquid crystal display - Google Patents
A kind of voltage output control circuit and liquid crystal display Download PDFInfo
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- CN106157921B CN106157921B CN201610850753.0A CN201610850753A CN106157921B CN 106157921 B CN106157921 B CN 106157921B CN 201610850753 A CN201610850753 A CN 201610850753A CN 106157921 B CN106157921 B CN 106157921B
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- electric switch
- resistance
- voltage
- resistor
- voltage output
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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
- 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
Abstract
A kind of voltage output control circuit, including first to 3rd resistor, first electric switch, first and second selection circuit, first choice circuit includes switch unit, second selection circuit includes the 4th resistance and the second electric switch, first is sequentially connected in series between first voltage end and ground to 3rd resistor, node between first and second resistance is voltage output end, the first end and second end of first electric switch are respectively connected to the both ends of 3rd resistor, the control terminal of first electric switch is connected to the first end of switch unit and the first end of the second electric switch, the second end of switch unit is connected to mode selection pin, the second end of second electric switch is grounded, the control terminal of second electric switch is connected to mode selection pin, the first end of second electric switch also passes through the 4th resistance and is connected to second voltage end, electricity is selected according to the first or second of selection Road and mode selection pin output level signal come control voltage output end output voltage, meet the demand to different reference voltages.
Description
Technical field
The present invention relates to a kind of field of display technology, more particularly, to a kind of voltage output control circuit and liquid crystal display
Device.
Background technique
LCD technology is to show different grayscale by liquid crystal molecule rotation angle difference under different voltages to show
Effect.Reference voltage when liquid crystal molecule zero deflection is known as VCM voltage, and one group of reference voltage of other different grayscale deflections is known as
Gamma voltage.VCM voltage and Gamma voltage are generated by special P-Gamma integrated chip at present.And P- universal at present
Gamma integrated chip can support 2 groups of difference Gamma voltage switching outputs, but only 1 VCM voltage output.2 groups of Gamma electricity
Pressure, which can be switched between two groups of Gamma voltage when liquid crystal display different mode switches by mode selection pin control, to be exported,
And the design of only one VCM voltage output causes only one mode that can have best VCM to design, another mode can only
Previous mode setting is continued to use, to be unable to reach the display effect of optimization.
Summary of the invention
The purpose of the present invention is to provide a kind of voltage output control circuits, to meet the needs of to different reference voltages.
Another object of the present invention is to provide a kind of liquid crystal displays.
To achieve the goals above, embodiment of the present invention provides the following technical solutions:
The present invention provides a kind of voltage output control circuit, including first resistor, second resistance, 3rd resistor, the first electricity
Switch, first choice circuit and the second selection circuit, the first choice circuit includes switch unit, second selection circuit
Including the 4th resistance and the second electric switch, the first resistor, the second resistance and 3rd resistor are sequentially connected in series
Between one voltage end and ground, node between the first resistor and the second resistance is as voltage output end, and described first
The first end and second end of electric switch are respectively connected to the both ends of the 3rd resistor, the control terminal connection of first electric switch
To the first end of the switch unit and the first end of second electric switch, the second end of the switch unit is connected to mode
Pin, the second end ground connection of second electric switch are selected, the control terminal of second electric switch is connected to the model selection
Pin, the first end of second electric switch is also connected to second voltage end by the 4th resistance, according to the first of selection
Or second the level signal of selection circuit and mode selection pin output control the voltage of voltage output end output.
Wherein, the switch unit is the 5th resistance, and the resistance value of the 5th resistance is zero.
Wherein, first electric switch and second electric switch are NPN type triode, and described first and second is established by cable
First end, second end and the control terminal of pass are respectively source electrode, drain electrode and the grid of triode.
Wherein, the voltage output control circuit further includes integrated chip and main control chip, and the integrated chip includes institute
First voltage output end is stated, the main control chip includes the mode selection pin.
Wherein, the integrated chip is P-Gamma integrated chip.
The present invention also provides a kind of liquid crystal displays, defeated including array substrate and the voltage being set in the array substrate
Control circuit out, the voltage output control circuit include first resistor, second resistance, 3rd resistor, the first electric switch, first
Selection circuit and the second selection circuit, the first choice circuit includes switch unit, and second selection circuit includes the 4th
Resistance and the second electric switch, the first resistor, the second resistance and 3rd resistor are sequentially connected in series at first voltage end
And between ground, node between the first resistor and the second resistance as voltage output end, first electric switch
First end and second end are respectively connected to the both ends of the 3rd resistor, and the control terminal of first electric switch is connected to described open
It closes the first end of unit and the first end of second electric switch, the second end of the switch unit is connected to model selection and draws
Foot, the second end ground connection of second electric switch, the control terminal of second electric switch are connected to the mode selection pin, institute
The first end for stating the second electric switch is also connected to second voltage end by the 4th resistance, is selected according to the first or second of selection
The level signal of circuit and mode selection pin output is selected to control the voltage of the voltage output end output.
Wherein, the switch unit is the 5th resistance, and the resistance value of the 5th resistance is zero.
Wherein, first electric switch and second electric switch are NPN type triode, and described first and second is established by cable
First end, second end and the control terminal of pass are respectively source electrode, drain electrode and the grid of triode.
Wherein, the voltage output control circuit further includes integrated chip and main control chip, and the integrated chip includes institute
First voltage output end is stated, the main control chip includes the mode selection pin.
Wherein, the integrated chip is P-Gamma integrated chip.
The embodiment of the present invention have the following advantages that or the utility model has the advantages that
Voltage output control circuit of the invention, including first resistor, second resistance, 3rd resistor, the first electric switch,
One selection circuit and the second selection circuit, the first choice circuit includes switch unit, and second selection circuit includes the
Four resistance and the second electric switch, the first resistor, the second resistance and 3rd resistor are sequentially connected in series in first voltage
Between end and ground, the node between the first resistor and the second resistance is as voltage output end, first electric switch
First end and second end be respectively connected to the both ends of the 3rd resistor, the control terminal of first electric switch is connected to described
The first end of the first end of switch unit and second electric switch, the second end of the switch unit are connected to model selection and draw
Foot, the second end ground connection of second electric switch, the control terminal of second electric switch are connected to the mode selection pin, institute
The first end for stating the second electric switch is also connected to second voltage end by the 4th resistance, is selected according to the first or second of selection
The level signal of circuit and mode selection pin output is selected to control voltage (the benchmark electricity of the voltage output end output
Pressure).Therefore, present invention accomplishes the demands to different reference voltages.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of circuit diagram for voltage output control circuit that first aspect of the present invention provides.
Fig. 2 is a kind of circuit diagram for liquid crystal display that second aspect of the present invention provides.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiments shall fall within the protection scope of the present invention.
In addition, the explanation of following embodiment is referred to the additional illustration, the spy that can be used to implement to illustrate the present invention
Determine embodiment.Direction terms mentioned in the present invention, for example, "upper", "lower", "front", "rear", "left", "right", "inner",
"outside", " side " etc. are only the directions with reference to annexed drawings, and therefore, the direction term used is to more preferably, more clearly say
The bright and understanding present invention, rather than indicate or imply signified device or element and must have a particular orientation, with specific square
Position construction and operation, therefore be not considered as limiting the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, is also possible to detachably connected, or integrally connects
It connects；It can be mechanical connection；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The connection in portion.For the ordinary skill in the art, the tool of above-mentioned term in the present invention can be understood with concrete condition
Body meaning.
In addition, in the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.If this
Occur the term of " process " in specification, refers not only to independent process, when can not clearly be distinguished with other process, as long as
Effect desired by the process is able to achieve then to be also included in this term.In addition, the numerical value model indicated in this specification with "~"
Enclose the range for referring to that the numerical value for recording "~" front and back is included as minimum value and maximum value.In the accompanying drawings, structure
Similar or identical is indicated by the same numeral.
Referring to Fig. 1, first aspect of the present invention embodiment provides a kind of voltage output control circuit 100.The voltage is defeated
Control circuit 100 includes first resistor R1, second resistance R2,3rd resistor R3, the first electric switch Q1, first choice circuit 10 out
And second selection circuit 20.The first choice circuit 10 includes switch unit.Second selection circuit 20 includes the 4th electricity
Hinder R4 and the second electric switch Q2.The first resistor R1, the second resistance R2 and 3rd resistor R3 are sequentially connected in series
Between one voltage end VCM and ground.Node a between the first resistor R1 and the second resistance R2 is as voltage output end.
The first end and second end of the first electric switch Q1 are respectively connected to the both ends of the 3rd resistor R3, first electric switch
The control terminal of Q1 is connected to the first end of the switch unit 10 and the first end of the second electric switch Q2, the switch unit
10 second end is connected to mode selection pin S, and the second end of the second electric switch Q2 is grounded, the second electric switch Q2's
Control terminal is connected to the mode selection pin S, and the first end of the second electric switch Q2 also passes through the 4th resistance R4 and connects
It is connected to second voltage end VCC, is exported according to the first or second selection circuit 10 or 20 of selection and the mode selection pin S
Level signal controls the voltage of voltage output end VCM output.
It should be noted that when selecting the first choice circuit 10, the mode selection pin S exports low level signal
When (for first mode), the first electric switch Q1 is not turned on, and the voltage of the voltage output end VCM output isV1 is the voltage of first voltage end VCM output.When the mode selection pin S is defeated
Out when high level signal (for second mode), the voltage of the first electric switch Q1 conducting, the voltage output end VCM output isVCM1 > VCM2.Therefore, when selecting first choice circuit, voltage that when first mode exports
The voltage exported when greater than second mode.
When selecting second selection circuit 20, the mode selection pin S exports low level signal (for first mode)
When, the second electric switch Q2 is not turned on, and the voltage of the first electric switch Q1 conducting, the voltage output end VCM output isV1 is the voltage of first voltage end VCM output.When the mode selection pin S exports height
When level signal (for second mode), the second electric switch Q2 conducting, the first electric switch Q1 is not turned on, and the voltage is defeated
Outlet VCM output voltage beVCM1<VCM2.Therefore, when selecting the second selection circuit
When, the voltage that when first mode exports is less than the voltage exported when second mode.
Therefore, selection needs the first choice circuit 10 accessed or the second selection circuit 20 can be realized according to actual needs
The voltage output end VCM output phase answers different voltage under different selection modes.The electricity of the voltage output end VCM output
Pressure is benchmark voltage.
In the present embodiment, the voltage output control circuit 100 includes first resistor R1, second resistance R2, third electricity
Hinder R3, the first electric switch Q1, first choice circuit 10 and the second selection circuit 20.The first choice circuit 10 includes that switch is single
Member.Second selection circuit 20 includes the 4th resistance R4 and the second electric switch Q2.The first resistor R1, the second resistance
R2 and 3rd resistor R3 are sequentially connected in series between first voltage end VCM and ground.The first resistor R1 and second electricity
The node a between R2 is hindered as voltage output end.The first end and second end of the first electric switch Q1 is respectively connected to described
The both ends of 3rd resistor R3, the control terminal of the first electric switch Q1 are connected to the first end and described of the switch unit 10
The first end of two electric switch Q2, the second end of the switch unit 10 are connected to mode selection pin S, the second electric switch Q2
Second end ground connection, the control terminal of the second electric switch Q2 is connected to the mode selection pin S, the second electric switch Q2
First end second voltage end VCC is also connected to by the 4th resistance R4, according to the first or second selection circuit of selection
The level signal of 10 or 20 and mode selection pin S output controls the voltage of voltage output end VCM output.Cause
This, present invention accomplishes the demands to different reference voltages.
Further, the voltage output control circuit 100 further includes integrated chip 30 and main control chip 40.It is described integrated
Chip 30 includes the first voltage output end VCM.The main control chip 40 includes the mode selection pin S.Wherein, described
Integrated chip is P-Gamma integrated chip.
In the present embodiment, the switch unit is the 5th resistance, and the resistance value of the 5th resistance is zero.In other implementations
In example, the switch unit can also be adjusted according to actual needs, can be such as a switch.
In the present embodiment, the first electric switch Q1 and the second electric switch Q2 is NPN type triode.Described
One and second electric switch Q1 and Q2 first end, second end and control terminal be respectively triode source electrode, drain electrode and grid.
Referring to Fig. 2, second aspect of the present invention provides a kind of liquid crystal display 200.The liquid crystal display 200 includes battle array
Column substrate 210 and the voltage output control circuit being set in the array substrate 210.The voltage output control circuit is this
The voltage output control circuit 100 that invention first scheme provides, specifically:
The voltage output control circuit 100 is established by cable including first resistor R1, second resistance R2,3rd resistor R3, first
Close Q1, first choice circuit 10 and the second selection circuit 20.The first choice circuit 10 includes switch unit.Second choosing
Selecting circuit 20 includes the 4th resistance R4 and the second electric switch Q2.The first resistor R1, the second resistance R2 and 3rd resistor
R3 is sequentially connected in series between first voltage end VCM and ground.Section between the first resistor R1 and the second resistance R2
Point a is as voltage output end.The first end and second end of the first electric switch Q1 is respectively connected to the 3rd resistor R3's
Both ends, the control terminal of the first electric switch Q1 be connected to the switch unit 10 first end and the second electric switch Q2
First end, the second end of the switch unit 10 are connected to mode selection pin S, the second termination of the second electric switch Q2
Ground, the control terminal of the second electric switch Q2 are connected to the mode selection pin S, and the first end of the second electric switch Q2 is also
It is connected to second voltage end VCC by the 4th resistance R4, according to the first or second selection circuit 10 or 20 of selection and institute
The level signal of mode selection pin S output is stated to control the voltage of the voltage output end VCM output.
It should be noted that when selecting the first choice circuit 10, the mode selection pin S exports low level signal
When (for first mode), the first electric switch Q1 is not turned on, and the voltage of the voltage output end VCM output isV1 is the voltage of first voltage end VCM output.When the mode selection pin S is defeated
Out when high level signal (for second mode), the voltage of the first electric switch Q1 conducting, the voltage output end VCM output isVCM1 > VCM2.Therefore, when selecting first choice circuit, voltage that when first mode exports
The voltage exported when greater than second mode.
When selecting second selection circuit 20, the mode selection pin S exports low level signal (for first mode)
When, the second electric switch Q2 is not turned on, and the voltage of the first electric switch Q1 conducting, the voltage output end VCM output isV1 is the voltage of first voltage end VCM output.When the mode selection pin S exports height
When level signal (for second mode), the second electric switch Q2 conducting, the first electric switch Q1 is not turned on, and the voltage is defeated
Outlet VCM output voltage beVCM1<VCM2.Therefore, when selecting the second selection circuit
When, the voltage that when first mode exports is less than the voltage exported when second mode.
Therefore, selection needs the first choice circuit 10 accessed or the second selection circuit 20 can be realized according to actual needs
The voltage output end VCM output phase answers different voltage under different selection modes.The electricity of the voltage output end VCM output
Pressure is benchmark voltage.
In the present embodiment, the liquid crystal display includes the voltage output control circuit 100.The voltage output control
Circuit 100 processed includes first resistor R1, second resistance R2,3rd resistor R3, the first electric switch Q1, first choice circuit 10 and the
Two selection circuits 20.The first choice circuit 10 includes switch unit.Second selection circuit 20 includes the 4th resistance R4
And the second electric switch Q2.The first resistor R1, the second resistance R2 and 3rd resistor R3 are sequentially connected in series in the first electricity
Between pressure side VCM and ground.Node a between the first resistor R1 and the second resistance R2 is as voltage output end.It is described
The first end and second end of first electric switch Q1 are respectively connected to the both ends of the 3rd resistor R3, the first electric switch Q1's
Control terminal is connected to the first end of the switch unit 10 and the first end of the second electric switch Q2, the switch unit 10
Second end is connected to mode selection pin S, the second end ground connection of the second electric switch Q2, the control of the second electric switch Q2
End is connected to the mode selection pin S, and the first end of the second electric switch Q2 also passes through the 4th resistance R4 and is connected to
Second voltage end VCC, the level exported according to the first or second selection circuit 10 or 20 of selection and the mode selection pin S
Signal controls the voltage of voltage output end VCM output.Therefore, present invention accomplishes the demand to different reference voltages,
So as to so that being optimal of liquid crystal display display effect.
Further, the voltage output control circuit 100 further includes integrated chip 30 and main control chip 40.It is described integrated
Chip 30 includes the first voltage output end VCM.The main control chip 40 includes the mode selection pin S.Wherein, described
Integrated chip is P-Gamma integrated chip.
In the present embodiment, the switch unit is the 5th resistance, and the resistance value of the 5th resistance is zero.In other implementations
In example, the switch unit can also be adjusted according to actual needs, can be such as a switch.
In the present embodiment, the first electric switch Q1 and the second electric switch Q2 is NPN type triode.Described
One and second electric switch Q1 and Q2 first end, second end and control terminal be respectively triode source electrode, drain electrode and grid.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means particular features, structures, materials, or characteristics described in conjunction with this embodiment or example
It is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are different
Surely identical embodiment or example is referred to.Moreover, the particular features, structures, materials, or characteristics of description can be any one
It can be combined in any suitable manner in a or multiple embodiment or examples.
Embodiments described above does not constitute the restriction to the technical solution protection scope.It is any in above-mentioned implementation
Made modifications, equivalent substitutions and improvements etc., should be included in the protection model of the technical solution within the spirit and principle of mode
Within enclosing.
Claims (8)
1. a kind of voltage output control circuit, including first resistor, second resistance, 3rd resistor, the first electric switch, first choice
Circuit and the second selection circuit, the first choice circuit includes switch unit, and second selection circuit includes the 4th resistance
And second electric switch, the switch unit are the 5th resistance, the resistance value of the 5th resistance is zero, the first resistor, described
Second resistance and 3rd resistor are sequentially connected in series between first voltage end and ground, the first resistor and the second resistance
Between node as voltage output end, the first end and second end of first electric switch are respectively connected to the 3rd resistor
Both ends, the control terminal of first electric switch be connected to the switch unit first end and second electric switch first
End, the second end of the switch unit are connected to mode selection pin, and the second end of second electric switch is grounded, and described second
The control terminal of electric switch is connected to the mode selection pin, and the first end of second electric switch also passes through the 4th resistance
It is connected to second voltage end, is exported according to the first choice circuit of selection or the second selection circuit and the mode selection pin
Level signal controls the voltage of voltage output end output.
2. voltage output control circuit as described in claim 1, which is characterized in that first electric switch and second electricity
Switch is NPN type triode, and first end, second end and the control terminal of first and second electric switch are respectively triode
Source electrode, drain electrode and grid.
3. voltage output control circuit as described in claim 1, which is characterized in that the voltage output control circuit further includes
Integrated chip and main control chip, the integrated chip include the first voltage output end, and the main control chip includes the mould
Formula selects pin.
4. voltage output control circuit as claimed in claim 3, which is characterized in that the integrated chip is integrated for P-Gamma
Chip.
5. a kind of liquid crystal display, including array substrate and the voltage output control circuit being set in the array substrate, institute
Stating voltage output control circuit includes first resistor, second resistance, 3rd resistor, the first electric switch, first choice circuit and
Two selection circuits, the first choice circuit includes switch unit, and second selection circuit includes the 4th resistance and the second electricity
Switch, the switch unit are the 5th resistance, and the resistance value of the 5th resistance is zero, the first resistor, the second resistance
And 3rd resistor is sequentially connected in series between first voltage end and ground, the section between the first resistor and the second resistance
Point is used as voltage output end, and the first end and second end of first electric switch are respectively connected to the both ends of the 3rd resistor,
The control terminal of first electric switch is connected to the first end of the switch unit and the first end of second electric switch, described
The second end of switch unit is connected to mode selection pin, the second end ground connection of second electric switch, second electric switch
Control terminal be connected to the mode selection pin, the first end of second electric switch also passes through the 4th resistance and is connected to
Second voltage end is believed according to the level that the first choice circuit of selection or the second selection circuit and the mode selection pin export
Number control the voltage of voltage output end output.
6. liquid crystal display as claimed in claim 5, which is characterized in that first electric switch and second electric switch are equal
For NPN type triode, first end, second end and the control terminal of first and second electric switch be respectively the source electrode of triode,
Drain electrode and grid.
7. liquid crystal display as claimed in claim 5, which is characterized in that the voltage output control circuit further includes integrated core
Piece and main control chip, the integrated chip include the first voltage output end, and the main control chip includes the model selection
Pin.
8. liquid crystal display as claimed in claim 7, which is characterized in that the integrated chip is P-Gamma integrated chip.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610850753.0A CN106157921B (en) | 2016-09-26 | 2016-09-26 | A kind of voltage output control circuit and liquid crystal display |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610850753.0A CN106157921B (en) | 2016-09-26 | 2016-09-26 | A kind of voltage output control circuit and liquid crystal display |
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| CN106157921A CN106157921A (en) | 2016-11-23 |
| CN106157921B true CN106157921B (en) | 2019-07-23 |
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| CN108172178B (en) * | 2017-12-13 | 2020-06-09 | 深圳市华星光电技术有限公司 | Power supply circuit of time schedule controller and liquid crystal display device |
| CN109164862A (en) * | 2018-07-24 | 2019-01-08 | 惠科股份有限公司 | A kind of reference voltage generation system and production method |
| CN110164393B (en) * | 2019-05-08 | 2021-11-16 | 昆山龙腾光电股份有限公司 | Display driving circuit and display method |
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| CN102280094A (en) * | 2011-08-16 | 2011-12-14 | 深圳市华星光电技术有限公司 | Liquid crystal panel driving circuit and liquid crystal display device using same |
| CN102938246A (en) * | 2012-12-06 | 2013-02-20 | 深圳市华星光电技术有限公司 | Driving system of liquid crystal display |
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| CN105895041A (en) * | 2016-06-06 | 2016-08-24 | 深圳市华星光电技术有限公司 | Common electrode driver module and liquid crystal display panel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004111262A (en) * | 2002-09-19 | 2004-04-08 | Nec Yamagata Ltd | Gamma control circuit and panel driving gear equipped with gamma control circuit |
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|---|---|---|---|---|
| CN102280094A (en) * | 2011-08-16 | 2011-12-14 | 深圳市华星光电技术有限公司 | Liquid crystal panel driving circuit and liquid crystal display device using same |
| CN102938246A (en) * | 2012-12-06 | 2013-02-20 | 深圳市华星光电技术有限公司 | Driving system of liquid crystal display |
| CN105700599A (en) * | 2014-11-24 | 2016-06-22 | 鸿富锦精密工业(武汉)有限公司 | Voltage regulation device for electronic equipment |
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