CN104299575B - Sequential color mixing display control method and device and displayer - Google Patents
Sequential color mixing display control method and device and displayer Download PDFInfo
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- CN104299575B CN104299575B CN201310694788.6A CN201310694788A CN104299575B CN 104299575 B CN104299575 B CN 104299575B CN 201310694788 A CN201310694788 A CN 201310694788A CN 104299575 B CN104299575 B CN 104299575B
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Abstract
The invention relates to the filed of liquid crystal display driving and discloses a sequential color mixing display control method and device and a displayer. The method is characterized by obtaining red, green and blue color data in a frame of color image data to generate a backlight control signal; obtaining red, green and blue gray scale data in the frame of color image data to generate a liquid crystal control signal; and controlling red, green and blue subframes to be displayed in sequence in a preset time respectively according to the backlight control signal and the liquid crystal control signal so as to display a color image on a liquid crystal display panel. Therefore, the resolution ratio and light transmittance of display are effectively improved.
Description
Technical field
The present invention relates to liquid crystal driving field, particularly relate to a kind of color sequential operation display control method,
Device and display.
Background technology
Along with the development of optoelectronic semiconductor technology, in modern people's daily life, production, liquid crystal display
Become conventional display device.Liquid crystal display includes display panels and backlight module.Due to liquid crystal
Showing that panel itself does not have the function of luminescence, therefore configuration backlight module provides the back of the body needed for display panels
Light source, and then make display panels reach the function of display.
Being illustrated in figure 1 the structural representation of conventional liquid crystal, liquid crystal display includes backlight module
110 and liquid crystal panel 120, liquid crystal panel 120 includes colored filter 121 and electrode glass 122.Backlight
The backlight that module 103 is provided is a white light.Backlight is sent to each pixel position through electrode glass 122
The colored filter 121 put, to show the color of each pixel.It is said that in general, meeting on a location of pixels
Red R, green G and blue tri-colored filters of B are set, use spacing color mixed, by three kinds of primary colours
Light is sufficiently close together at conplane correspondence position, as long as three primary colours luminous points are sufficiently small and fully near, and human eye
The color being had after will feel three kinds of primary lights mixing at a distance from place.
But, use the mode the most more Expenses Cost of colored filter display picture, and can filter because of colour
Mating plate light transmittance is low and makes the display brightness of each pixel dimmed.
Summary of the invention
The present invention provides the display control method of a kind of color sequential operation, device and display, solves tradition liquid
Crystal display high cost, colored filter cause the technical problem that light transmittance is low.
It is an object of the invention to be achieved through the following technical solutions:
A kind of display control method of color sequential operation, including:
Obtain the color data of red, green, blue in color image frame data, to generate backlight control signal；
Obtain the gradation data of red, green, blue in described color image frame data, to generate LCD Controlling letter
Number；
According to described backlight control signal and described LCD Controlling signal, control red, green, blue subframe and exist respectively
Show successively in Preset Time, to show described coloured image.
A kind of display control unit of color sequential operation, described display control unit includes:
Backlight control module, for obtaining the color data of red, green, blue in color image frame data, with
Generate backlight control signal；
Liquid crystal control module, for obtaining the gradation data of red, green, blue in described color image frame data,
To generate LCD Controlling signal；
Display control module, for the described backlight control signal according to described backlight control module and described liquid
The described LCD Controlling signal of brilliant control module, control red, green, blue subframe respectively in Preset Time successively
Display, to show described coloured image.
A kind of display, described display includes that the display of backlight module, liquid crystal panel and color sequential operation controls
Device, wherein,
Described backlight module includes three groups of backlights of red, green, blue；
The display control unit of described color sequential operation is for being divided into red, green, blue by frame data of coloured image
Sub-frame color data, to generate backlight control signal；One frame data of coloured image are divided into red, green, blue
Subframe gradation data, to generate LCD Controlling signal；According to described backlight control signal and described LCD Controlling
Signal, controls red, green, blue subframe and shows successively in Preset Time respectively, to show described coloured image.
The display control method of color sequential operation, device and the display provided by the present invention, obtains a frame color
The color data of red, green, blue in color image data, to generate backlight control signal, obtains a described frame color
The gradation data of red, green, blue in color image data, to generate LCD Controlling signal, according to described backlight control
Signal processed and described LCD Controlling signal, control red, green, blue subframe and show successively in Preset Time respectively,
To show described coloured image on described liquid crystal panel.It is effectively improved resolution and the light transmittance of display.
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 enforcement
In example, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only
Some embodiments of the present invention, for those of ordinary skill in the art, are not paying creative work
On the premise of, it is also possible to other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the structural representation of conventional liquid crystal；
The electrical block diagram of the Fig. 2 a kind of liquid crystal display for providing in the embodiment of the present invention；
The display control method flow chart of the Fig. 3 a kind of color sequential operation for providing in the embodiment of the present invention；
The displaying principle figure of the Fig. 4 a kind of color sequential operation for providing in the embodiment of the present invention；
There is, for the backlight provided in the embodiment of the present invention, the schematic diagram that colour mixture is disturbed in Fig. 5；
The display control unit structural representation of the Fig. 6 a kind of color sequential operation for providing in the embodiment of the present invention；
The structural representation of the Fig. 7 a kind of liquid crystal display for providing in the embodiment of the present invention.
Detailed description of the invention
Understandable for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from, below in conjunction with the accompanying drawings and
The present invention is further detailed explanation for detailed description of the invention.
As in figure 2 it is shown, be the electrical block diagram of liquid crystal display, liquid crystal display includes backlight module
210 and liquid crystal panel 220, three groups of backlights of red, green, blue that backlight module 210 provides, backlight module
210 can be side entrance back module or direct-injection type backlight module, and liquid crystal panel 220 can be high speed TN
Liquid crystal display screen, OCB liquid crystal display screen, PDLC liquid crystal display screen, FLC liquid crystal display screen or AFLC liquid crystal display screen etc..Drive control
Device 230 processed receives color image data, and controls liquid crystal panel 120 and backlight module 210, with display
Coloured image.Drive dynamic control device 230 and include that control signal generation circuit, gray scale take out circuit and row, column
Drive circuit, after a new frame image signal starts, control signal generation circuit is believed at system synchronization clock
Number coordination under, R, G, B three-channel parallel numeral of the color image frame from external image source is believed
Number by display requirement process, a two field picture is divided into R, G, B subframe, to drive backlight module point
Tri-groups of backlights of bright R, G, B, by gray scale take out circuit the grey scale signal in R, G, B given row,
Column drive circuit, row, column drive circuit completes the "ON" of liquid crystal at each pixel according to synchronizing clock signals
With "Off" action, thus complete the display of coloured image.A kind of color sequential operation aobvious is described in detail below
Show control method, as follows:
The embodiment of the present invention provides the display control method of a kind of color sequential operation, drives dynamic control device 230
As a example by, as it is shown on figure 3, the method comprises the steps:
Step 301, obtain the color data of red, green, blue in color image frame data, to generate backlight
Control signal；
Wherein, R, G, B three-channel parallel digital signal from external image source one color image frame is pressed
Display requirement processes, and obtains the color data of red, green, blue in color image frame data, to generate
Backlight control signal.It is divided into R, G, B subframe, to control backlight mould by step 301 one two field picture
Group lights tri-groups of backlights of R, G, B.
Step 302, obtain the gradation data of red, green, blue in described color image frame data, to generate
LCD Controlling signal；
Wherein, take out circuit by gray scale and obtain the grey scale signal in R, G, B, to generate LCD Controlling
Signal, this LCD Controlling signal can control "ON" and "Off" action, the liquid crystal of liquid crystal at each pixel
"ON" action refer to that liquid crystal molecule rotates under the electric field action that LCD Controlling signal produces, make light pass through.
The "Off" action of liquid crystal refers to that liquid crystal molecule rotates under the electric field action that LCD Controlling signal produces, and stops light
Line passes through.
Step 303, according to described backlight control signal and described LCD Controlling signal, control red, green, blue
Subframe shows respectively in Preset Time successively, to show described coloured image.
Wherein, this step may include that according to described LCD Controlling signal, controls on liquid crystal panel corresponding
The unlatching duration of the liquid crystal molecule of pixel；According to described backlight control signal, control red, green, blue subframe and divide
Not showing successively in Preset Time, the display time of each subframe is a color image frame cycle
1/ (3N), N are positive integer, and accordingly, the refreshing frequency of each subframe becomes every color image frame and refreshes frequency
3N times of rate, such as: every color image frame refreshing frequency is 60Hz, as N=1, a two field picture quilt
Being divided into tri-subframes of R, G, B, the refreshing frequency of each subframe is 180Hz, as N=2, and a frame figure
As being divided into six subframes of R, G, B, R, G, B, the refreshing frequency of each subframe is 360Hz.
It is illustrated in figure 4 the displaying principle figure of color sequential operation, illustrates intuitively according to described backlight control
Signal and described LCD Controlling signal, control red, green, blue subframe and show successively in Preset Time respectively,
To show the principle of described coloured image.Certain the pixel X pixel that have chosen in Fig. 4 on liquid crystal panel is
Example, the displaying principle of other pixel is similar, and red a line represents the situation of lighting of red backlight, green
A line represents that the situation of lighting of green colored backlights, blue a line represent the situation of lighting of Blue backlight, and ON represents
Lighting (or liquid crystal molecule unlatching), OFF represents closedown (or liquid crystal molecule closedown), when display nth frame
Image time, according to backlight control signal, redness and the green colored backlights of X pixel are lighted successively, Blue backlight
Do not worked (can also be closed by liquid crystal molecule and realize identical effect), and X pixel finally shows yellow, when
When showing the image of N+1 frame, according to backlight control signal, the green of X pixel and Blue backlight are successively
Lighting, red backlight does not works (can also by liquid crystal molecule close realize identical effect), and X pixel is
Display cyan eventually.By LCD Controlling signal, control the unlatching duration of liquid crystal molecule corresponding to X pixel,
The brightness of red, green, blue color can be controlled respectively, and then show more color, such as: when display the
During the image of N frame, according to backlight control signal, redness and the green colored backlights of X pixel are lighted successively, blue
Backlight does not works, and redness is lighted duration and become T/2, and green is lighted duration and become T/2, X pixel and finally show
Show faint yellow.
The display control method of the color sequential operation provided in the embodiment of the present invention, by obtaining a color image frame
The color data of red, green, blue in data, to generate backlight control signal, obtains a described color image frame
The gradation data of red, green, blue in data, to generate LCD Controlling signal, according to described backlight control signal
With described LCD Controlling signal, control red, green, blue subframe show successively in Preset Time respectively, with
Described coloured image is shown on described liquid crystal panel.From the point of view of Dui Bi, traditional liquid crystal show by three red, green,
Blue sub-pixel shows as a pixel, and the display controlling party of the color sequential operation that the embodiment of the present invention provides
Method, it is achieved that shown as single pixel by each sub-pixel, is effectively increased the resolution of liquid crystal display,
It addition, the colored filter eliminated in traditional liquid crystal device, it is effectively increased the light transmittance of liquid crystal display.
In the embodiment of the present invention, owing to lighting of backlight is progressive formation, when red, green, blue backlight successively point
Time bright, at rising part and the sloping portion of backlight signal, it is possible to colour mixture occurs.As it is shown in figure 5, it is red
With the upper lifting part of green colored backlights, the sloping portion of color backlight signal occurs that colour mixture is disturbed, cause color of image
Instability, there will be severe variegated.
For solving the problem of colour mixture interference, embodiments provide two ways:
First kind of way is to insert white space (i.e. inserting black subframe), correspondingly, step between subframe
303 may include that according to described backlight control signal and described LCD Controlling signal, control red, green, blue
Subframe is spaced Preset Time successively and shows.
By first kind of way, red, green, blue subframe is spaced Preset Time successively and shows, inserts between subframe
White space (i.e. inserts black subframe), effectively prevent the colour mixture interference between red, green, blue subframe, carries
Purity and stability that color shows are risen.
The second way, for when backlight signal is stablized, just allows light to pass through, and correspondingly, step 303 can
To include: when backlight signal reaches stable, according to described LCD Controlling signal, it is right to open on liquid crystal panel
Answer the liquid crystal molecule of pixel, and control the unlatching duration of liquid crystal molecule.
By the second way, at rising part and the sloping portion of backlight signal, it is right to close on liquid crystal panel
Answer the liquid crystal molecule of pixel, only when backlight signal reaches stable, open respective pixel on liquid crystal panel
Liquid crystal molecule, not only effectively prevent the colour mixture interference between red, green, blue subframe, improves what color showed
Purity and stability, and reduce the impact that overall light changes by the backlight signal raising and lowering stage.
Red, green, blue backlight in the embodiment of the present invention, it is also possible to replace with other in addition to red-green-blue
Other three primary colours backlight, such as: the cyan of CMYK colour gamut, magenta, yellow three primary colours.As for aobvious
Show that the method for control is similar to the above embodiments, do not repeat them here.
The embodiment of the present invention provides the display control unit of a kind of color sequential operation, described display control unit
Including:
Backlight control module 610, for obtaining the color data of red, green, blue in color image frame data,
To generate backlight control signal；
Liquid crystal control module 620, for obtaining the gray scale of red, green, blue in described color image frame data
Data, to generate LCD Controlling signal；
Display control module 630, for the described backlight control signal according to described backlight control module 610
With the described LCD Controlling signal of described liquid crystal control module 620, control red, green, blue subframe respectively in advance
If showing successively in the time, to show described coloured image.
Wherein, described display control module 630 is specifically for according to described backlight control signal and described liquid crystal
Control signal, control red, green, blue subframe is spaced Preset Time successively and shows.
Described display control module 630, including:
Unit, for according to described LCD Controlling signal, controls respective pixel on liquid crystal panel
The unlatching duration of liquid crystal molecule；
Backlight driving unit, for according to described backlight control signal, controls red, green, blue subframe and exists respectively
Show successively in Preset Time.
Described unit 631 in described display control module 630 is specifically for reaching when backlight signal
To when stablizing, according to described LCD Controlling signal, open the liquid crystal molecule of respective pixel on liquid crystal panel, and
Control the unlatching duration of liquid crystal molecule.
Additionally providing a kind of display in the embodiment of the present invention, described display includes backlight module 710, liquid
The display control unit 730 of crystal panel 720 and color sequential operation, wherein,
Described backlight module 710 includes three groups of backlights of red, green, blue；
The display control unit 730 of described color sequential operation for frame data of coloured image are divided into red,
Sub-frame color data green, blue, to generate backlight control signal；One frame data of coloured image are divided into red,
Subframe gradation data green, blue, to generate LCD Controlling signal；According to described backlight control signal and described liquid
Brilliant control signal, controls red, green, blue subframe and shows successively in Preset Time respectively, with at described liquid crystal
Described coloured image is shown on panel.
Through the above description of the embodiments, those skilled in the art is it can be understood that arrive this
Invention can add the mode of required hardware platform by software and realize, naturally it is also possible to all by hard
Part is implemented, but a lot of in the case of the former is more preferably embodiment.Based on such understanding, this
What background technology was contributed by bright technical scheme in whole or in part can be with the form of software product
Embodying, this computer software product can be stored in storage medium, such as ROM/RAM, magnetic
Dish, CD etc., including some instructions with so that computer equipment (can be personal computer,
Server, or the network equipment etc.) perform each embodiment of the present invention or some part of embodiment
Described method.
Above the present invention is described in detail, former to the present invention of specific case used herein
Reason and embodiment are set forth, and the explanation of above example is only intended to help to understand the present invention's
Method and core concept thereof；Simultaneously for one of ordinary skill in the art, according to the think of of the present invention
Think, the most all will change, in sum, this specification
Content should not be construed as limitation of the present invention.
Claims (6)
1. the display control method of a color sequential operation, it is characterised in that including:
Obtain the color data of red, green, blue in color image frame data, to generate backlight control signal；
Obtain the gradation data of red, green, blue in described color image frame data, to generate LCD Controlling letter
Number；
According to described backlight control signal and described LCD Controlling signal, control red, green, blue subframe and exist respectively
Showing successively in Preset Time, to show described coloured image, it specifically includes:
When backlight signal reaches stable, according to described LCD Controlling signal, open corresponding picture on liquid crystal panel
The liquid crystal molecule of element, and control the unlatching duration of liquid crystal molecule；According to described backlight control signal, control red,
Subframe green, blue shows respectively in Preset Time successively.
Method the most according to claim 1, it is characterised in that described believe according to described backlight control
Number and described LCD Controlling signal, control red, green, blue subframe show successively in Preset Time respectively, bag
Include:
According to described backlight control signal and described LCD Controlling signal, control red, green, blue subframe successively between
Show every Preset Time.
Method the most according to claim 1, it is characterised in that described red, green, blue subframe is permissible
It is replaced by cyan, magenta, yellow subframe.
4. the display control unit of a color sequential operation, it is characterised in that described display control unit includes:
Backlight control module, for obtaining the color data of red, green, blue in color image frame data, with
Generate backlight control signal；
Liquid crystal control module, for obtaining the gradation data of red, green, blue in described color image frame data,
To generate LCD Controlling signal；
Display control module, for the described backlight control signal according to described backlight control module and described liquid
The described LCD Controlling signal of brilliant control module, control red, green, blue subframe respectively in Preset Time successively
Display, to show described coloured image, wherein,
Described display control module, including:
Unit, for when backlight signal reaches stable, according to described LCD Controlling signal, opens
Open the liquid crystal molecule of respective pixel on liquid crystal panel, and control the unlatching duration of liquid crystal molecule；
Backlight driving unit, for according to described backlight control signal, controls red, green, blue subframe and exists respectively
Show successively in Preset Time.
Display control unit the most according to claim 4, it is characterised in that described display controls mould
Block, specifically for according to described backlight control signal and described LCD Controlling signal, controls red, green, blue subframe
Interval Preset Time shows successively.
6. a display, it is characterised in that described display include backlight module, liquid crystal panel and time
The display control unit of sequence colour mixture, wherein,
Described backlight module includes three groups of backlights of red, green, blue；
The display control unit of described color sequential operation is for being divided into red, green, blue by frame data of coloured image
Sub-frame color data, to generate backlight control signal；One frame data of coloured image are divided into red, green, blue
Subframe gradation data, to generate LCD Controlling signal；According to described backlight control signal and described LCD Controlling
Signal, controls red, green, blue subframe and shows successively in Preset Time respectively, with on described liquid crystal panel
Showing described coloured image, it specifically includes:
When backlight signal reaches stable, according to described LCD Controlling signal, open corresponding picture on liquid crystal panel
The liquid crystal molecule of element, and control the unlatching duration of liquid crystal molecule；According to described backlight control signal, control red,
Subframe green, blue shows respectively in Preset Time successively.
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104834104B (en) | 2015-05-25 | 2017-05-24 | 京东方科技集团股份有限公司 | 2D/3D switchable display panel, and display method and display device thereof |
| CN104932143A (en) * | 2015-06-17 | 2015-09-23 | 衷健 | Color visual effect device and color visual effect generation method |
| CN106876406B (en) * | 2016-12-30 | 2023-08-08 | 上海君万微电子科技有限公司 | LED full-color display device structure based on III-V nitride semiconductor and preparation method thereof |
| CN109036258A (en) * | 2017-06-09 | 2018-12-18 | 上海君万微电子科技有限公司 | The display methods of colored micro-display device and preparation method thereof and color image |
| CN107086029B (en) * | 2017-06-12 | 2020-07-14 | 深圳Tcl新技术有限公司 | Color generation method and device based on liquid crystal display module and readable storage medium |
| CN108346406B (en) * | 2018-03-30 | 2020-03-20 | 惠科股份有限公司 | Liquid crystal display device and driving method thereof |
| CN110488534A (en) * | 2019-08-21 | 2019-11-22 | 惠州市慧联智显工业系统有限公司 | A kind of dedicated BLU of time mixing color |
| CN111221159B (en) | 2020-03-02 | 2022-06-14 | 上海天马微电子有限公司 | Liquid crystal module, spatial light modulator, holographic 3D display device and driving method |
| CN111538181A (en) * | 2020-06-05 | 2020-08-14 | 京东方科技集团股份有限公司 | Electronic device and driving method thereof |
| CN112669780B (en) * | 2020-12-31 | 2022-12-13 | 深圳Tcl数字技术有限公司 | Image display method, liquid crystal display device, apparatus, and storage medium |
| CN113314085B (en) * | 2021-06-15 | 2022-09-27 | 武汉华星光电技术有限公司 | Display method and display device of display panel |
| CN113362776A (en) * | 2021-06-30 | 2021-09-07 | 北京京东方光电科技有限公司 | Field sequence display device, control method and display equipment |
| CN114694602A (en) * | 2022-04-14 | 2022-07-01 | 广州华星光电半导体显示技术有限公司 | Backlight driving method of liquid crystal display device and liquid crystal display device |
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| JP3804502B2 (en) * | 2001-09-27 | 2006-08-02 | カシオ計算機株式会社 | Driving method of liquid crystal display device |
| KR100536222B1 (en) * | 2004-05-17 | 2005-12-12 | 삼성에스디아이 주식회사 | A liquid crystal display and a driving method thereof |
| CN1866344A (en) * | 2005-05-18 | 2006-11-22 | 深圳大学 | Color sequential liquid crystal display |
| KR101399017B1 (en) * | 2006-11-15 | 2014-05-28 | 삼성디스플레이 주식회사 | Display apparatus and method of driving the same |
| CN101295480A (en) * | 2007-04-24 | 2008-10-29 | 中华映管股份有限公司 | Alternation contra-rotation scanning type indication method and device |
| TWI371012B (en) * | 2007-05-03 | 2012-08-21 | Novatek Microelectronics Corp | Mixed color sequential controlling method and back light module and display device using the same |
| CN101853637A (en) * | 2009-04-03 | 2010-10-06 | 久正光电股份有限公司 | Colorful multi-scan driving method |
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