CN106057159A - Liquid crystal display (LCD) device, mobile terminal and method for driving LCD device - Google Patents
Liquid crystal display (LCD) device, mobile terminal and method for driving LCD device Download PDFInfo
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- CN106057159A CN106057159A CN201610638957.8A CN201610638957A CN106057159A CN 106057159 A CN106057159 A CN 106057159A CN 201610638957 A CN201610638957 A CN 201610638957A CN 106057159 A CN106057159 A CN 106057159A
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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
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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 Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention provides an LCD device which comprises pixels and a liquid crystal driver for driving the pixels. The liquid crystal driver is provided with a data compensator, the data compensator is used to receive and analyze image data of the pixels, obtain position information and gray-scale compensation values of the pixels, and carry out gray-scale compensation on the pixels according to the obtain gray-scale compensation values. The LCD device of the invention can be used to reduce image flickering of a display screen, and improve the image quality. The invention also provides a mobile terminal and a method for driving the LCD device.
Description
Technical field
The present invention relates to technical field of liquid crystal display, particularly relate to a kind of liquid crystal indicator, mobile terminal and drive liquid
The method of crystal device.
Background technology
At present, the use of liquid crystal display is increasingly wider, and liquid crystal display is widely used in all kinds of mobile terminal, such as
In computer or mobile phone.
In operation, liquid crystal display generally uses the mode of progressive scan to be driven, meanwhile, in order to prevent liquid crystal pole
Changing, liquid crystal is required for driving by the mode of exchange, and the adjacent two frame pictures of the most same pixel are contrary with the polarity of common electrode.Existing
A common electrode is all shared in the whole panel of some liquid crystal displays, but due to signal delay effect and the impact of panel processing procedure,
In panel, the optimal common electrode voltage in each region is the most different, even and if central point common electrode be adjusted to most preferably, when display same
During picture, when positive polarity electrode voltage together difference and negative polarity electrode voltage difference absolute value together do not wait, arise that picture dodges
Bright problem.
Summary of the invention
The present invention provides a kind of liquid crystal indicator, mobile terminal and the method driving liquid crystal indicator, it is possible to reduce
The film flicker of display screen, improves image quality.
The present invention provides a kind of liquid crystal indicator, including pixel and the liquid crystal driver that is driven for described pixel,
Described liquid crystal driver is provided with data compensator, and described data compensator can receive the view data of described pixel, analyzes described
View data thus obtain positional information and the gray scale compensation value of described pixel, and according to the described gray scale compensation value obtained to institute
State pixel and carry out gray scale compensation.
Wherein, described data compensator includes location determination module, data register module and data compensating module, institute's rheme
Put determination module and judge pixel position on described liquid crystal indicator, and the positional information of described pixel is transferred to institute
Stating data register module, described data register module draws the ash of described pixel according to the positional information of the described pixel received
Rank offset, and described gray scale compensation value is transferred to described compensation data module, described compensation data module is according to reception
Gray scale compensation value carries out gray scale compensation to described pixel.
Wherein, described liquid crystal driver also includes signal generator, row data buffer, level translator, digital-to-analogue conversion
Device and out amplifier, described signal generator sends described view data, and described data compensator is from described row data buffering
Device receives described view data, and will carry out the view data after gray scale compensation, by described digital to analog converter and described output
The process of amplifier, is transferred to described pixel.
Wherein, described signal generator provides view data in units of a line.
Wherein, described row data buffer includes multiple data latches that series system is electrically connected.
Wherein, described liquid crystal driver also include input data switch and with described input data switch with the use of
Output data switch, described input data switch and the described output data switch polarity between neighbor
Conversion.
The present invention also provides for a kind of mobile device, including the liquid crystal indicator as described in aforementioned any one.
The present invention also provides for a kind of method driving liquid crystal indicator, to reduce the film flicker of liquid crystal panel, described
Method comprises the following steps: the pixel for described liquid crystal indicator provides view data；Analyze and obtain the position of described pixel
Confidence ceases, and obtains the coordinate of described pixel；According to the coordinate of described pixel, in gray scale compensation data look-up table, search and obtain
Go out the gray scale compensation value of described pixel；The gray scale compensation value obtained is added described view data, so that described pixel is carried out ash
Rank compensate.
Wherein, for the pixel described view data of offer of described liquid crystal indicator in units of a line.
Wherein, before also including the described view data of described pixel is carried out gray scale compensation, postpone to input described image
Data.
Compared to prior art, it is provided with data compensator according to the liquid crystal driver of the liquid crystal indicator of the present invention, should
Data compensator can interpolate that the position of pixel, and determines the gray scale compensation value of the pixel of this position, and can be this picture
Element carries out gray scale compensation such that it is able to reduce this pixel due to the film flicker caused when positive-negative polarity is asymmetric.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the circuit structure of the liquid crystal driver for individual data passage of the liquid crystal indicator according to the present invention
Schematic diagram；
Fig. 2 is the electrical block diagram of the data compensator of Fig. 1；
Fig. 3 is the circuit structure of the liquid crystal driver for two data channel of the liquid crystal indicator according to the present invention
Schematic diagram；
Fig. 4 is the positive polarity look-up table being exemplarily illustrated in the liquid crystal driver of Fig. 1；
Fig. 5 is the negative polarity look-up table being exemplarily illustrated in the liquid crystal driver of Fig. 1；
Fig. 6 is the flow chart of the method driving liquid crystal indicator according to the present invention.
Detailed description of the invention
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 carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
With reference to Fig. 1, it is shown that according to the liquid crystal driver for individual data passage of the liquid crystal indicator of the present invention
Electrical block diagram, this liquid crystal driver is for providing driving signal for single pixel, and this liquid crystal driver includes that signal is sent out
Raw device 1, row data buffer 2, data compensator 3, level translator 4, digital to analog converter 5 and out amplifier 6, signal occurs
Device 1 is for producing picture signal for pixel, and this picture signal is through row data buffer 2, data compensator 3, level translator
4, export after the process of digital to analog converter 5 and out amplifier 6, wherein it is preferred to, signal generator 1 is with a behavior list
Position provides view data, row data buffer 2 to include two data latches, the i.e. first latch 21 to row data buffer 2
With the second latch 22, after the first latch 21 has received the view data of a line, the data of this row can be transmitted and latched
In the second latch 22, view data is transferred to data compensator 3 by the second latch 22, and the first latch 21 can start
Receive the data of next line.And data compensator 3 is for receiving the view data of the second latch 22 transmission, analyze picture number
According to thus obtain positional information and the gray scale compensation value of pixel, and treated view data is transferred to level translator 4,
After this view data is carried out level conversion by level translator 4, being transferred to digital to analog converter 5, digital to analog converter 5 is by view data
Digital electric signal be converted into analog electrical signal, and be transferred to out amplifier 6, viewdata signal is through out amplifier
After the amplification of 6, be transferred to pixel, thus the image needed for display such that it is able to reduce this pixel due to positive-negative polarity the most right
The film flicker caused during title.
With reference to Fig. 2, it is shown that according to the electrical block diagram of the data compensator 3 of the liquid crystal indicator of the present invention, should
Data compensator 3 includes location determination module 31, data register module 32 and data compensating module 33, location determination module 31 from
Second latch 22 receives view data, and judges pixel position on liquid crystal indicator, and by the position of pixel
Information is transferred to data register module 32, and data register module 32 draws the ash of pixel according to the positional information of the pixel received
Rank offset, and gray scale compensation value is transferred to compensation data module 33, compensation data module 33 is according to the gray scale compensation received
Value carries out gray scale compensation to pixel such that it is able to reduce this pixel due to the film flicker caused when positive-negative polarity is asymmetric.
With reference to Fig. 3, it is shown that according to the liquid crystal driver for two data channel of the liquid crystal indicator of the present invention
Electrical block diagram, the corresponding liquid crystal driver of each of which data channel, these two data channel are adjacent two
Individual pixel provides view data, and during work, the driving voltage of two adjacent pixels is contrary.These two data channel are by input
Data switch 7 and output data switch 8 carry out the conversion of polarity, and specifically, signal generator 1 sends the image of positive polarity
After data, after the first latch 21, this view data can be received by input data switch 7, this input data switch 7
View data can be transferred to the second latch 22 ' of another data channel, and then, this view data is by this data channel
Data compensator 3 ' receives, and after data compensator 3 ' carries out gray scale compensation process to view data, this view data is via level
After the process of transducer 4 ', digital to analog converter 5 ' and out amplifier 6 ', by the process of output data converter 8, then can carry out
Output, now the signal of view data is converted into negative polarity.And the signal generator 1 ' of another data channel sends negative polarity
After view data, after the first latch 21 ', this view data can be received by input data switch 7, and these input data are cut
View data can be transferred to the second latch 22 by parallel operation 7, and then, this view data is by the data compensator in this data channel
3 receive, and after data compensator 3 carries out gray scale compensation process to view data, this view data is via level translator 4, digital-to-analogue
After the process of transducer 5 and out amplifier 6, by the process of output data converter 8, then can export, now picture number
According to signal be converted into positive polarity, therefore by utilizing the liquid crystal driver of adjacency channel, it is possible to complete the polarity of picture signal
Conversion, utilizes the parts on passage fully, cost-effective, and the miniaturization of beneficially liquid crystal indicator.
With reference to Fig. 4 and Fig. 5, be exemplarily illustrated respectively according to the positive polarity look-up table in the liquid crystal driver of the present invention and
Negative polarity look-up table, the function of this positive polarity look-up table and negative polarity look-up table is by the data register module 32 of data compensator 3
Realizing, wherein, look-up table size is determined by the panel size of liquid crystal indicator, and panel is exemplarily divided into 9* by Fig. 4 and Fig. 5
5 totally 45 regions, therefore the size of look-up table is also 9*5 totally 45 regions.In the course of the work, the polarity of such as present frame is
Just, and the grey decision-making of current pixel is 200, the location determination module of data compensator 3 judge the coordinate position of pixel as (2,
4) time, obtaining gray scale compensation device according to positive polarity look-up table is 3, when the GTG carrying out this pixel after GTG supplements is 203.When
During display next frame picture, its polarity is negative, and being compensated value according to negative polarity look-up table is-3, then with original image grey decision-making phase
Obtain 197 after adding, thus just can improve this pixel region because of the film flicker problem caused when positive-negative polarity is asymmetric.
With reference to Fig. 6, it is shown that according to the flow chart of the method driving liquid crystal indicator of the present invention, the method includes following
Step: the pixel for liquid crystal indicator provides view data；Analyze and obtain the positional information of this pixel, obtain this pixel
Coordinate；According to the coordinate of pixel, in gray scale compensation data look-up table, search and draw the gray scale compensation value of pixel；To obtain
Gray scale compensation value add view data, so that pixel is carried out gray scale compensation such that it is able to reduce this pixel due to positive-negative polarity
The film flicker caused time asymmetric.
Preferably, in units of a line, pixel as liquid crystal indicator provides view data, to realize a frame picture
Drive, complete the progressive scan of liquid crystal indicator.
Preferably, before the method also includes that the view data to pixel carries out gray scale compensation, postpone input image data,
This step can be realized by the data latches of row data buffer, so that it is guaranteed that the grey decision-making of image is compensated.
The liquid crystal indicator that the present invention provides, it can be used in various mobile terminal, and such as, mobile terminal is permissible
Including the subscriber equipment communicated with one or more core net through wireless access network RAN, this subscriber equipment can be mobile
Phone (" honeycomb " phone), having the computer etc. of mobile terminal, such as, subscriber equipment can also is that portable, pocket, hands
Hold formula, built-in computer or vehicle-mounted mobile device, they and wireless access network exchange voice and/or data.The most such as,
This mobile terminal can include mobile phone, panel computer, personal digital assistant PDA, point-of-sale terminal POS or vehicle-mounted computer etc..
The above disclosed present pre-ferred embodiments that is only, can not limit the right model of the present invention with this certainly
Enclose, one of ordinary skill in the art will appreciate that all or part of flow process realizing above-described embodiment, and want according to right of the present invention
Seek made equivalent variations, still fall within the scope that invention is contained.
Claims (10)
1. a liquid crystal indicator, it is characterised in that include pixel and the liquid crystal driver being driven for described pixel, institute
Stating liquid crystal driver and be provided with data compensator, described data compensator is used for receiving and analyzing the view data of described pixel, from
And obtain positional information and the gray scale compensation value of described pixel, and according to the described gray scale compensation value obtained, described pixel is carried out
Gray scale compensation.
2. liquid crystal indicator as claimed in claim 1, it is characterised in that described data compensator includes location determination mould
Block, data register module and data compensating module, described location determination module judges that pixel is on described liquid crystal indicator
Position, and the positional information of described pixel is transferred to described data register module, described data register module is according to reception
To the positional information of described pixel draw the gray scale compensation value of described pixel, and described gray scale compensation value is transferred to described number
According to compensating module, described compensation data module carries out gray scale compensation according to the gray scale compensation value received to described pixel.
3. liquid crystal indicator as claimed in claim 2, it is characterised in that described liquid crystal driver also includes that signal occurs
Device, row data buffer, level translator, digital to analog converter and out amplifier, described signal generator sends described image
Data, described data compensator receives described view data from described row data buffer, and will carry out the institute after gray scale compensation
State view data, by described digital to analog converter and the process of described out amplifier, be transferred to described pixel.
4. liquid crystal indicator as claimed in claim 3, it is characterised in that described signal generator provides in units of a line
Described view data.
5. liquid crystal indicator as claimed in claim 4, it is characterised in that described row data buffer includes that series system enters
Multiple data latches of row electrical connection.
6. liquid crystal indicator as claimed in claim 5, it is characterised in that described liquid crystal driver also includes that inputting data cuts
Parallel operation and with described input data switch with the use of output data switch, described input data switch and described defeated
Go out data switch dipole inversion between neighbor.
7. a mobile device, it is characterised in that include the liquid crystal indicator as described in any one of claim 1 to 6.
8. the method driving liquid crystal indicator, to reduce the film flicker of liquid crystal panel, it is characterised in that described method
Comprise the following steps:
Pixel for described liquid crystal indicator provides view data；
Analyze and obtain the positional information of described pixel, obtain the coordinate of described pixel；
According to the coordinate of described pixel, in gray scale compensation data look-up table, search and draw the gray scale compensation value of described pixel；
The gray scale compensation value obtained is added described view data, so that described pixel is carried out gray scale compensation.
9. method as claimed in claim 8, it is characterised in that the pixel for described liquid crystal indicator carries in units of a line
For described view data.
10. method as claimed in claim 9, it is characterised in that also include the described view data of described pixel is carried out ash
Before rank compensate, postpone to input described view data.
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| CN201610638957.8A CN106057159A (en) | 2016-08-05 | 2016-08-05 | Liquid crystal display (LCD) device, mobile terminal and method for driving LCD device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610638957.8A CN106057159A (en) | 2016-08-05 | 2016-08-05 | Liquid crystal display (LCD) device, mobile terminal and method for driving LCD device |
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| CN201610638957.8A Pending CN106057159A (en) | 2016-08-05 | 2016-08-05 | Liquid crystal display (LCD) device, mobile terminal and method for driving LCD device |
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Cited By (9)
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| CN107680546A (en) * | 2017-09-28 | 2018-02-09 | 深圳市华星光电技术有限公司 | Compensate delay circuit and display device |
| CN107977182A (en) * | 2017-12-07 | 2018-05-01 | 深圳吉迪思电子科技有限公司 | A kind of display screen drive system and method |
| CN108288448A (en) * | 2017-01-09 | 2018-07-17 | 昆山工研院新型平板显示技术中心有限公司 | Display driving system and its driving method and display device |
| CN110085182A (en) * | 2019-04-17 | 2019-08-02 | 深圳市华星光电技术有限公司 | Pixel charging method and display device |
| CN110097856A (en) * | 2018-01-31 | 2019-08-06 | 奇景光电股份有限公司 | Sequence controller and its operating method |
| CN110189693A (en) * | 2019-06-11 | 2019-08-30 | 京东方科技集团股份有限公司 | Display driving method, display driver and display device |
| CN110942754A (en) * | 2019-11-26 | 2020-03-31 | Tcl华星光电技术有限公司 | Data compensation method and pixel compensation device |
| CN113963672A (en) * | 2021-11-05 | 2022-01-21 | 惠州华星光电显示有限公司 | Display brightness adjusting method and device, electronic equipment and storage medium |
| WO2022033133A1 (en) * | 2020-08-09 | 2022-02-17 | 合肥奕斯伟集成电路有限公司 | Driving voltage compensation method, driving voltage compensation apparatus, and display apparatus |
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| CN107977182A (en) * | 2017-12-07 | 2018-05-01 | 深圳吉迪思电子科技有限公司 | A kind of display screen drive system and method |
| CN110097856A (en) * | 2018-01-31 | 2019-08-06 | 奇景光电股份有限公司 | Sequence controller and its operating method |
| CN110085182A (en) * | 2019-04-17 | 2019-08-02 | 深圳市华星光电技术有限公司 | Pixel charging method and display device |
| WO2020211149A1 (en) * | 2019-04-17 | 2020-10-22 | 深圳市华星光电技术有限公司 | Pixel charging method and display device |
| CN110189693A (en) * | 2019-06-11 | 2019-08-30 | 京东方科技集团股份有限公司 | Display driving method, display driver and display device |
| CN110942754A (en) * | 2019-11-26 | 2020-03-31 | Tcl华星光电技术有限公司 | Data compensation method and pixel compensation device |
| WO2022033133A1 (en) * | 2020-08-09 | 2022-02-17 | 合肥奕斯伟集成电路有限公司 | Driving voltage compensation method, driving voltage compensation apparatus, and display apparatus |
| CN113963672A (en) * | 2021-11-05 | 2022-01-21 | 惠州华星光电显示有限公司 | Display brightness adjusting method and device, electronic equipment and storage medium |
| CN113963672B (en) * | 2021-11-05 | 2023-02-24 | 惠州华星光电显示有限公司 | Display brightness adjusting method and device, electronic equipment and storage medium |
| WO2023077567A1 (en) * | 2021-11-05 | 2023-05-11 | 惠州华星光电显示有限公司 | Method and apparatus for adjusting brightness of display |
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