CN110299120A - A kind of liquid crystal display and its color offset compensating method - Google Patents
A kind of liquid crystal display and its color offset compensating method Download PDFInfo
- Publication number
- CN110299120A CN110299120A CN201910533535.8A CN201910533535A CN110299120A CN 110299120 A CN110299120 A CN 110299120A CN 201910533535 A CN201910533535 A CN 201910533535A CN 110299120 A CN110299120 A CN 110299120A
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- China
- Prior art keywords
- driving
- glass substrate
- liquid crystal
- tft glass
- module
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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
- G09G3/3607—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 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
-
- 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
- G09G2320/06—Adjustment of display parameters
- G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a kind of liquid crystal displays, including horizontal polaroid, colored filter, liquid crystal, TFT glass substrate and the circuit board set gradually, several point of driving IC and one always driving IC is integrated on the circuit board, the TFT glass substrate is divided into several independent regions modules by seamless, each regions module connects one point of driving IC, and the TFT glass substrate is integrally electrically connected total driving IC；A kind of liquid crystal display of technical solution of the present invention realizes that the voltage difference being applied on TFT glass substrate to total driving IC compensates, avoids liquid crystal because of the different rough arrangement control deviations of voltage difference, that is, avoid the occurrence of colour cast using a point driving IC.
Description
Technical field
The present invention relates to liquid crystal display field, more specifically to a kind of liquid crystal display and its colour cast compensation side
Method.
Background technique
Liquid crystal display (LCD, Liquid Crystal Display) has thin fuselage, power saving, radiationless etc. numerous excellent
Point, is widely used, such as: LCD TV, mobile phone, personal digital assistant (PDA), digital camera, computer screen
Curtain or laptop screen etc..The structure of liquid crystal display is mainly by colored filter, liquid crystal, TFT glass substrate and electricity
Road plate is constituted, its working principle is that driving liquid crystal to arrange in certain rule by applying voltage on the TFT glass substrate after device
What column were realized, but due to the impedance delay of the driving framework of liquid crystal display and liquid crystal cell cabling, cause to drive core close to IC
Piece side region charging it is more sufficient, display brightness is brighter, and far from IC driving chip region charging it is weaker, display brightness compared with
It is weak.In this way, the brightness of liquid crystal display different zones can show difference, liquid crystal display existing colour cast all the time that is to say
Problem.And with liquid crystal display large scale, the development trend of high-res in recent years, the colour cast problem of liquid crystal display is more
Seriously.
Summary of the invention
The purpose of the present invention is to provide a kind of liquid crystal display and its color offset compensating methods, so that liquid crystal display is not
It is consistent with the brightness on regional location, the problem of avoiding the occurrence of colour cast.
A kind of liquid crystal display of technical solution of the present invention, including horizontal polaroid, colored filter, the liquid set gradually
Brilliant, TFT glass substrate and circuit board are integrated with several points of driving IC and one always driving IC, the TFT glass on the circuit board
Glass substrate is divided into several independent regions modules by seamless, and each regions module connects one point of driving IC, the TFT glass
Substrate is integrally electrically connected total driving IC.
Preferably, the regions module is distributed on TFT glass substrate in array-like, each regions module shape it is identical and
Area equation.
A kind of color offset compensating method of liquid crystal display, based on above-mentioned liquid crystal display, color offset compensating method includes
Following operating procedure:
1) will always drive IC and point driving IC respectively with divided each area on TFT glass substrate and TFT glass substrate
Domain module is electrically connected；
2) total driving IC is calculated to be applied on TFT glass substrate and TFT glass substrate in divided each region module
Voltage, and based on choosing the strongest regions module of voltage；
3) based on 2), basic module voltage difference of each region module compared with selection is calculated, using point driving IC to each
Individually apply voltage in regions module so that the voltage value obtained in the module of each region by point driving IC and total driving IC it
It is equal with voltage on basic module.
The beneficial effect of technical solution of the present invention is:
A kind of liquid crystal display and its color offset compensating method of technical solution of the present invention are realized using a point driving IC to total
The voltage difference that driving IC is applied on TFT glass substrate compensates, and avoids liquid crystal because of the different rough arrangements of voltage difference
Control deviation avoids the occurrence of colour cast.
Specific embodiment
For convenient for those skilled in the art understand that technical solution of the present invention, existing technical solution of the present invention are done further
It is bright.
A kind of liquid crystal display, including set gradually horizontal polaroid, colored filter, liquid crystal, TFT glass substrate and
Circuit board is integrated with several points of driving IC and one always driving IC on the circuit board, and the TFT glass substrate is by seamless point
Several independent regions modules are divided into, each regions module connects one point of driving IC, and the TFT glass substrate is integrally electrically connected
Total driving IC is met, the regions module is distributed on TFT glass substrate in array-like, and each regions module shape is identical and face
Product is equal.
A kind of color offset compensating method of liquid crystal display, color offset compensating method include following operating procedure:
1) TFT glass substrate is divided into several independent regions modules by seamless, is denoted as A1, A2, A3 respectively ...,
Each point of driving IC is denoted as I1, I2, I3 respectively ...
1) will always drive IC and point driving IC I1, I2, I3 ... respectively with quilt on TFT glass substrate and TFT glass substrate
Each region modules A 1 of segmentation, A2, A3 ... are electrically connected；
2) calculate total driving IC be applied to divided each region modules A 1 on TFT glass substrate and TFT glass substrate,
Voltage on A2, A3 ..., and based on choosing the strongest regions module of voltage, the one's respective area module of selection is denoted as A, voltage
It is denoted as U；
3) based on the basic module A voltage U difference for 2), calculating each region modules A 1, A2, A3 ... relatively choose, respectively
It is denoted as V1, V2, V3 ..., is above individually applied using point driving IC I1, I2, I3 ... to each region modules A 1, A2, A3 ...
Making alive V1, V2, V3 ..., so that by point driving IC I1, I2, I3 ... and total in each region modules A 1, A2, A3 ...
The sum of the voltage value for driving IC to obtain is equal with voltage on basic module.
In the present invention, the abbreviation of TFT glass substrate thin film transistor (TFT), device is on glass substrate by sputtering, chemical deposition
Technique forms manufacture conductive film, by the various large-scale circuits of processing and fabricating to conductive film,.It can be greatly reduced into
This is traditional large scale integrated circuit to large area, the extension in multi-functional, inexpensive direction.
In the present invention, driving IC, that is, LED driving IC:LED be light emitting diode, when light emitting diode quantity more than or
Light emitting diode power consumption just needs to drive when big, and is what driving, and this, what driving is integrated into electronic chip, this
A chip is just driving IC or driving IC chip, and briefly driving IC is exactly to play to provide compensation electric current to light emitting diode
Effect.
The working principle of LED driving IC:
Driving IC chip includes constant current generation circuit, can pass through plug-in resistance to set output constant current value, through chip
Enable end can control the switch time of output channel, and switching frequency is up to a 1MHz.Electric current output-response is exceedingly fast, and supports high
Color range variation and the application of high picture refreshing rate.
LED drives IC driving method:
The adjusting method of current value is mainly the brightness for changing current value adjustment, it is assumed herein that luminosity at this time is 1 times,
The luminosity when luminosity and curent change of white light becomes 1.7 times, and luminosity at this time becomes 3 times, although illumination and current value are simultaneously
It is not proportionate relationship, but feux rouges is but in proportionate relationship, main cause is that the chip physical property of red, green, blue is different caused each other.
Technical solution of the present invention is exemplarily described invention above, it is clear that the present invention implements not by upper
The limitation of mode is stated, is improved as long as using the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out, or not
It is improved that the conception and technical scheme of invention are directly applied into other occasions, it is within the scope of the present invention.
Claims (3)
1. a kind of liquid crystal display, which is characterized in that including horizontal polaroid, colored filter, liquid crystal, the TFT set gradually
Glass substrate and circuit board are integrated with several points of driving IC and one always driving IC, the TFT glass substrate on the circuit board
Several independent regions modules are divided by seamless, and each regions module connects one point of driving IC, and the TFT glass substrate is whole
The total driving IC of body electrical connection.
2. a kind of liquid crystal display according to claim 1, which is characterized in that the regions module is distributed in array-like
On TFT glass substrate, each regions module shape is identical and area equation.
3. a kind of color offset compensating method of liquid crystal display, which is characterized in that it is based on liquid crystal display described in claim 1,
Its color offset compensating method includes following operating procedure:
1) will always drive IC and point driving IC respectively with divided each region mould on TFT glass substrate and TFT glass substrate
Block is electrically connected；
2) it calculates total driving IC and is applied to the electricity on TFT glass substrate and TFT glass substrate in divided each region module
Pressure, and based on choosing the strongest regions module of voltage；
3) based on basic module voltage difference of each region module compared with selection 2), is calculated, drive IC to each region using point
Individually apply voltage in module, so that by the sum of point driving IC and total driving IC voltage value obtained and base in the module of each region
Voltage is equal in plinth module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910533535.8A CN110299120A (en) | 2019-06-19 | 2019-06-19 | A kind of liquid crystal display and its color offset compensating method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910533535.8A CN110299120A (en) | 2019-06-19 | 2019-06-19 | A kind of liquid crystal display and its color offset compensating method |
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| CN110299120A true CN110299120A (en) | 2019-10-01 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140071106A1 (en) * | 2012-09-13 | 2014-03-13 | Novatek Microelectronics Corp. | Source driver and method for updating a gamma curve |
| CN105388646A (en) * | 2015-12-14 | 2016-03-09 | 深圳市华星光电技术有限公司 | Liquid crystal display screen and color cast compensation method of same |
| CN105405426A (en) * | 2016-01-04 | 2016-03-16 | 京东方科技集团股份有限公司 | Display screen, display device and display control method |
| CN108630148A (en) * | 2018-04-27 | 2018-10-09 | 武汉华星光电半导体显示技术有限公司 | The compensation method of display panel luminance difference and display |
| CN109817160A (en) * | 2019-04-01 | 2019-05-28 | 芯颖科技有限公司 | display screen brightness control method and device |
-
2019
- 2019-06-19 CN CN201910533535.8A patent/CN110299120A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140071106A1 (en) * | 2012-09-13 | 2014-03-13 | Novatek Microelectronics Corp. | Source driver and method for updating a gamma curve |
| CN105388646A (en) * | 2015-12-14 | 2016-03-09 | 深圳市华星光电技术有限公司 | Liquid crystal display screen and color cast compensation method of same |
| CN105405426A (en) * | 2016-01-04 | 2016-03-16 | 京东方科技集团股份有限公司 | Display screen, display device and display control method |
| CN108630148A (en) * | 2018-04-27 | 2018-10-09 | 武汉华星光电半导体显示技术有限公司 | The compensation method of display panel luminance difference and display |
| CN109817160A (en) * | 2019-04-01 | 2019-05-28 | 芯颖科技有限公司 | display screen brightness control method and device |
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Application publication date: 20191001 |