CN106910482A - The Vcom voltage wiring method and liquid crystal display device of liquid crystal panel - Google Patents
The Vcom voltage wiring method and liquid crystal display device of liquid crystal panel Download PDFInfo
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- CN106910482A CN106910482A CN201710294515.0A CN201710294515A CN106910482A CN 106910482 A CN106910482 A CN 106910482A CN 201710294515 A CN201710294515 A CN 201710294515A CN 106910482 A CN106910482 A CN 106910482A
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- Prior art keywords
- liquid crystal
- vcom
- crystal panel
- function
- led
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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
-
- 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
Abstract
The Vcom voltage wiring method and liquid crystal display device of a kind of liquid crystal panel that the application is provided, belong to display technology field, it is determined that characterizing the flicker degree function of liquid crystal panel display picture with Vcom gray values；Mathematics derivation is carried out to the function and obtains that the function single order is led and second order is led, the function single order led equal to 0 and second order leads Vcom gray values corresponding more than 0, be defined as the Vcom registers that optimal Vcom voltage writes liquid crystal panel.The application improves the reliability and efficiency of Vcom debugging process.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of liquid crystal panel Vcom voltage wiring method and liquid crystal
Showing device.
Background technology
In order to reduce the flickering of LCD TV, lifting human eye watches comfort level, and liquid crystal display exists in the prior art
Vcom voltage adjustment can be carried out during production, to reach preferable Vcom voltage, reduces flickering.Wherein, existing method of adjustment is such as
Under：
The preset fixed Flicker graph cards of liquid crystal display are played, it is necessary to be manually sequentially adjusted in the range of 0-255
The register value of correspondence Vcom in Gamma IC, reads the LCDs glazing flicker number of degrees in real time by optical inductor respectively
According to, the corresponding Vcom values of minimum Flicker values are found out in contrast, then write in Gamma IC correspondence registers the Vcom values,
Complete Vcom debugging.
It is then, above-mentioned that to manually adjust mode accuracy rate relatively low.The adjustable amplitude of Vcom values of some liquid crystal panels is smaller,
It is difficult to preferable Vcom values are determined, or, the correspondence adjustment Vcom value amplitudes in debugging tool are larger, so, easily cause
Vcom values deviate its representative value.Once Vcom values deviate its representative value, and when falling into SARS offset (such as：Shown in Fig. 1 a-1c), liquid
Display picture occurs exception on crystal display screen, such as：White picture, now image switching is uncontrolled, and white picture is showed
Go out Flicker values and be usually smaller value, such as：Close to 0 value, therefore, prior art adjustment method easily will now corresponding Vcom values
As in preferred values write-in register.The illusion that Flicker is smaller value is shown under white picture, Vcom values are now write
It is not preferred values, therefore, above-mentioned debud mode accuracy is low, to cause debugging efficiency low.
The content of the invention
The present patent application provides a kind of the Vcom voltage wiring method and liquid crystal display device of liquid crystal panel, for improving
Vcom voltage debugs accuracy.
In a first aspect, the application provides a kind of Vcom voltage wiring method of liquid crystal panel, including：It is determined that with Vcom gray scales
Value characterizes the flicker degree function of liquid crystal panel display picture；Mathematics derivation carried out to the function obtain the function single order to lead and second order
Lead, the function single order is led equal to 0 and second order leads Vcom gray values corresponding more than 0, be defined as optimal Vcom voltage write-in liquid crystal
The Vcom registers of panel.
Second aspect, deposits this application provides a kind of liquid crystal display device, including memory, processor and storage described
On reservoir and the computer program that can run on the processor, it is characterised in that during the computing device said procedure
Realize that above-mentioned first aspect provides method and step.
Compared with prior art, the Advantageous Effects of the technical scheme that the embodiment of the present application is proposed include：
The Vcom voltage wiring method and liquid crystal display device of a kind of liquid crystal panel that the application is provided, it is determined that with Vcom ashes
Angle value characterizes the flicker degree function of liquid crystal panel display picture；Mathematics derivation carried out to the function obtain the function single order to lead and two
Rank is led, and the function single order is led equal to 0 and second order leads Vcom gray values corresponding more than 0, is defined as optimal Vcom voltage write-in liquid
The Vcom registers of crystal panel.The application improves the reliability and efficiency of Vcom debugging process.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is technology, the accompanying drawing to be used needed for description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 a-1c are flicker degree Flicker values and Vcom voltage value corresponding relation schematic diagram；
Fig. 2 is a kind of schematic flow sheet of the Vcom voltage wiring method of liquid crystal panel in the embodiment of the present application one；
Fig. 3 is the structural representation of liquid crystal display device in the embodiment of the present application two.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is purged, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of invention, rather than whole embodiments.Based on this
Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example is applied, the scope of the present invention is belonged to.
Below, the technical scheme shown in the application is described in detail by specific embodiment.It should be noted that under
These specific embodiments of face can be combined with each other, may be in certain embodiments for same or analogous concept or process
Repeat no more.
Embodiment one：
The embodiment of the present application one provides a kind of Vcom voltage wiring method of liquid crystal panel, in order to realize the flow and method,
The photoelectric conversion device of automatic testing light flicker degree can be equipped with, it is positioned over display screen middle position, user's real-time testing shows
The flicker degree of display screen curtain.Fig. 2 is that a kind of flow of the Vcom voltage wiring method of liquid crystal panel in the embodiment of the present application one is illustrated
Figure, as illustrated, the method step includes：
Step S110, liquid crystal display screen display Flicker graph cards, wherein, the Flicker graph cards signal can be pre-
It is placed in liquid crystal display, can automatic cycle broadcasting.Can also be played out by ancillary equipment, then by TV signal passage
In input to liquid crystal display.
Step S120, liquid crystal display is changed in Vcom Typical value ranges according to preset stepping, receives real
When monitor the data of flicker degree.Wherein, erroneous judgement is caused in order to avoid noise jamming, can be entered to receiving flicker degree data
Row filtering process.
Step S130, according to Vcom typical case's value changes and the data of the flicker degree of real-time reception, it is determined that with Vcom gray scales
Value characterizes flicker degree function f (x) of liquid crystal panel display picture.Wherein, become according to preset stepping with Vcom Typical value ranges
Change (such as 0-255) and real-time monitor flicker degrees of data with corresponding, set up the letter that liquid crystal panel flash degree is characterized with Vcom gray values
Exponential model f (x).
Step S140, carries out that mathematics differentiates first derivative f ' (x) that obtains function f (x) and second order is led to above-mentioned function
f″(x)。
Step S150, will meet function first derivative f ' (x0) it is equal to 0 and second dervative f " (x0) more than 0 when, by the letter
Vcom gray values x in number0It is defined as the Vcom registers that optimal Vcom voltage writes liquid crystal panel.By inventor's experimental data
Understand, as illustrated by figures 1 a-1 c, when Gamma IC Vcom register values are near representative value, flicker degree is corresponding with Vcom values
Relation is similar to a certain parabola, only exists a minimum point, and the point is optimal Vcom values；And during away from the representative value, such as
In Fig. 1 c in E regions, Display panel is gradually abnormal, and final display turns into white picture, corresponding flicker degree minimum 0, but now
Vcom values then can not simultaneously meet condition：Function single order leads first derivative f ' (x0) it is equal to 0 and second dervative f " (x0) more than 0, therefore
The point will not be mistaken as Vcom optimum values.Improve the reliability and efficiency of Vcom debugging process.
It should be noted that during above method flow can be with preset and liquid crystal display, being held by liquid crystal display
Row above method step.The external device that can also possess calculation function by configuration performs above method step, the external device
One end connects the photoelectric conversion device of automatic testing light flicker degree, receives flicker degree test data, other end connection liquid crystal display
Equipment, obtains computing Vcom optimum values and exports to liquid crystal display, and in execution write-in to Vcom registers.
Embodiment two：
The embodiment of the present application one provides a kind of liquid crystal flat-panel display device, as shown in figure 3, the liquid crystal display device 300, including
Bus 304 between memory 302, processor 301, connecting components, and storage is on the memory 302 and can be at the place
The computer program run on reason device 301, the processor 301 realizes step S110- steps S150 when performing said procedure.
Above specific embodiment, has been carried out further specifically to the purpose of the present invention, technical scheme and beneficial effect
It is bright, should be understood that and these are only specific embodiment of the invention, the protection model being not intended to limit the present invention
Enclose, all any modification, equivalent substitution and improvements within the spirit and principles in the present invention, done etc. should be included in the present invention
Protection domain within.
Claims (4)
1. the Vcom voltage wiring method of a kind of liquid crystal panel, it is characterised in that the method includes：
It is determined that characterizing the flicker degree function of liquid crystal panel display picture with Vcom gray values；
Mathematics derivation is carried out to the function and obtains that the function single order is led and second order is led, the function single order led equal to 0 and second order is led
Vcom gray values corresponding more than 0, are defined as the Vcom registers that optimal Vcom voltage writes liquid crystal panel.
2. method according to claim 1, it is characterised in that the method also includes：
Show Flicker graph cards on liquid crystal display panel, and Gamma IC Vcom register values in Typical value range according to
Preset step-by-step system is changed.
3. method according to claim 2, it is characterised in that the method also includes：Liquid crystal is real-time monitored according to reception
The flicker degree of Display panel picture and corresponding Vcom values, set up the Function Modules that liquid crystal panel flash degree is characterized with Vcom gray values
Type.
4. a kind of liquid crystal display device, including memory, processor and storage are on the memory and can be in the processor
The computer program of upper operation, it is characterised in that realized during the computing device said procedure any in claim 1-3
Method and step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710294515.0A CN106910482A (en) | 2017-04-28 | 2017-04-28 | The Vcom voltage wiring method and liquid crystal display device of liquid crystal panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710294515.0A CN106910482A (en) | 2017-04-28 | 2017-04-28 | The Vcom voltage wiring method and liquid crystal display device of liquid crystal panel |
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| CN106910482A true CN106910482A (en) | 2017-06-30 |
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| CN201710294515.0A Pending CN106910482A (en) | 2017-04-28 | 2017-04-28 | The Vcom voltage wiring method and liquid crystal display device of liquid crystal panel |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107908029A (en) * | 2017-12-29 | 2018-04-13 | 徐州帝意电子有限公司 | A kind of LCD screen flicker Automatic adjustment method based on Arduino microcontrollers |
| CN109192155A (en) * | 2018-09-11 | 2019-01-11 | 四川长虹电器股份有限公司 | The method that Tconless LCD TV carries out screen flicker debugging automatically |
| CN111524484A (en) * | 2020-04-30 | 2020-08-11 | 苏州佳智彩光电科技有限公司 | Rapid Gamma adjustment method and one-time burning OTP system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018934A (en) * | 2012-12-07 | 2013-04-03 | 京东方科技集团股份有限公司 | Liquid crystal module testing device |
| CN104464664A (en) * | 2014-11-21 | 2015-03-25 | 深圳市立德通讯器材有限公司 | Method for automatically correcting liquid crystal display screen Flicker |
| CN104732943A (en) * | 2015-04-08 | 2015-06-24 | 京东方科技集团股份有限公司 | Public voltage regulating method and device and display device |
| US20160171936A1 (en) * | 2014-12-11 | 2016-06-16 | Richtek Technology Corporation | Gamma curve correction method for a liquid crystal display |
-
2017
- 2017-04-28 CN CN201710294515.0A patent/CN106910482A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018934A (en) * | 2012-12-07 | 2013-04-03 | 京东方科技集团股份有限公司 | Liquid crystal module testing device |
| CN104464664A (en) * | 2014-11-21 | 2015-03-25 | 深圳市立德通讯器材有限公司 | Method for automatically correcting liquid crystal display screen Flicker |
| US20160171936A1 (en) * | 2014-12-11 | 2016-06-16 | Richtek Technology Corporation | Gamma curve correction method for a liquid crystal display |
| CN104732943A (en) * | 2015-04-08 | 2015-06-24 | 京东方科技集团股份有限公司 | Public voltage regulating method and device and display device |
Non-Patent Citations (1)
| Title |
|---|
| 夏丹等: "《考研数学·20年真题分类精讲 数学一》", 31 May 2015, 世界图书出版公司北京公司 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107908029A (en) * | 2017-12-29 | 2018-04-13 | 徐州帝意电子有限公司 | A kind of LCD screen flicker Automatic adjustment method based on Arduino microcontrollers |
| CN109192155A (en) * | 2018-09-11 | 2019-01-11 | 四川长虹电器股份有限公司 | The method that Tconless LCD TV carries out screen flicker debugging automatically |
| CN111524484A (en) * | 2020-04-30 | 2020-08-11 | 苏州佳智彩光电科技有限公司 | Rapid Gamma adjustment method and one-time burning OTP system |
| CN111524484B (en) * | 2020-04-30 | 2022-08-09 | 苏州佳智彩光电科技有限公司 | Rapid Gamma adjustment method and one-time burning OTP system |
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