WO2016106882A1 - 液晶显示器及其驱动方法 - Google Patents
液晶显示器及其驱动方法 Download PDFInfo
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- WO2016106882A1 WO2016106882A1 PCT/CN2015/071064 CN2015071064W WO2016106882A1 WO 2016106882 A1 WO2016106882 A1 WO 2016106882A1 CN 2015071064 W CN2015071064 W CN 2015071064W WO 2016106882 A1 WO2016106882 A1 WO 2016106882A1
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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
- G09G3/2007—Display of intermediate tones
- G09G3/2018—Display of intermediate tones by time modulation using two or more time intervals
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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
- G09G3/3406—Control of illumination source
- G09G3/3413—Details of control of colour illumination sources
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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
- G09G3/2003—Display of colours
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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
- G09G3/2007—Display of intermediate tones
- G09G3/2074—Display of intermediate tones using sub-pixels
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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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- 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
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- G—PHYSICS
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0439—Pixel structures
- G09G2300/0452—Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
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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
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0235—Field-sequential colour display
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0242—Compensation of deficiencies in the appearance of colours
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0252—Improving the response speed
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2340/00—Aspects of display data processing
- G09G2340/06—Colour space transformation
Definitions
- the present invention relates to the field of display of liquid crystal displays, and more particularly to a liquid crystal display and a driving method thereof.
- the liquid crystal display using the Field Sequential Color (FSC) display principle has been widely used.
- FIG. 1 is a schematic diagram showing the display of a TGB-FSC liquid crystal display in the prior art, wherein FIG. 1(a) is a schematic diagram of a first color field when display is performed, and FIG. 1(b) is a second color field for display. schematic diagram.
- each display unit of the liquid crystal display has two color filters and one transparent filter.
- each frame of the liquid crystal display is obtained by mixing two color fields of a first color field and a second color field.
- the first color field when the first color field is turned on, the white backlight is lit, and the transparent sub-pixel, the green sub-pixel, and the blue sub-pixel are simultaneously turned on, that is, each sub-pixel is turned on.
- the liquid crystal molecules undergo corresponding rotation under the action of voltage.
- the white light W is transmitted through the transparent sub-pixel, and the green light is transmitted through the green sub-pixel due to the action of the filter at the green sub-pixel and the blue sub-pixel, and the blue light is transmitted through the blue sub-pixel.
- the first color field has picture information of three colors of white, green, and blue.
- the white backlight is turned off, the red backlight is turned on, the green sub-pixel and the blue sub-pixel are turned off, and the transparent sub-pixel is kept turned on, then the red backlight will only be Transmissive via transparent sub-pixels such that the second color field has red picture information.
- the first color field and the second color field are sequentially input into the human eye and synthesized by the human eye to obtain a frame containing complete color information.
- the inventors of the present invention found during the research that the FSC liquid crystal display of the prior art has a color shift phenomenon when displayed. For example, when alternately using a white backlight and a red backlight to display one frame, The displayed picture will be reddish, and the reason for the color shift is mainly due to the longer response time of the liquid crystal.
- One of the technical problems to be solved by the present invention is to provide a method for improving color shift efficiently and at low cost.
- an embodiment of the present application provides a driving method of a liquid crystal display, the method comprising the steps of: converting three primary color gray scale data of one frame of a picture to be displayed into multi-color gray scale data, wherein the multi-color Included in the three primary colors and a color other than the three primary colors; the first color field and the second color field of the frame are sequentially displayed, and when each color field is displayed, a backlight of a predetermined color in the plurality of colors is used as a backlight of the color field, and Driving different sub-pixels according to the color of the backlight of the color field, the multi-color gray scale data of the frame picture, and the pre-stored gray scale data, wherein the pre-stored gray scale data includes the multi-color gray of the previous frame Gray scale data corresponding to colors other than the three primary colors in the order data.
- the gray scale data of the colors other than the three primary colors in the multi-color gray scale data of the frame picture is stored after the completion of the display of one frame of the picture and before the display of the picture of the next frame.
- the backlight of one of the three primary colors is used as the backlight of the color field, and the same color of the multi-color gray scale data of the frame picture and the backlight is used.
- the corresponding gray scale data is output to the transparent sub-pixel, and the pre-stored gray scale data is output to the remaining sub-pixels.
- the backlight of the color other than the three primary colors of the multi-color is used as the backlight of the color field, and the same color of the multi-color gray-scale data of the frame picture and the backlight is used.
- the corresponding gray scale data is output to the transparent sub-pixel, and the gray scale data corresponding to the colors of the remaining sub-pixels is output to the remaining sub-pixels.
- the pre-stored gray level data is 0.
- the brightness of the backlight of a color other than the three primary colors is less than the brightness of the backlight of one of the three primary colors.
- colors other than the three primary colors include white and cyan.
- the pre-stored grayscale data is replaced with grayscale data corresponding to colors other than the three primary colors in the multi-color grayscale data of the frame picture in an alternative form.
- the picture refresh rate of the liquid crystal display is greater than or equal to 120 Hz.
- the embodiment of the present application improves the color shift problem of the existing liquid crystal display by adopting a driving mode in which the multi-color gray scale data converted from the three primary color gray scale data is respectively output to each sub-pixel in a certain color field.
- the colorless partial driving method also has the advantages of small amount of stored data, fast calculation speed, and low cost.
- FIG. 1 is a schematic diagram showing the display of a TGB-FSC liquid crystal display in the prior art, wherein FIG. 1(a) is a schematic diagram of a first color field when display is performed, and FIG. 1(b) is a second color field for display. schematic diagram;
- FIG. 2 is a schematic diagram of liquid crystal response at each sub-pixel when the TGB-FSC liquid crystal display is driven by the GB black insertion in the prior art
- FIG. 3 is a schematic flow chart of a driving method of a liquid crystal display according to an embodiment of the present application.
- FIG. 4 is a schematic diagram of a driving method of a liquid crystal display according to an embodiment of the present application.
- FIG. 5 is a schematic diagram showing the display of a TGB-FSC liquid crystal display driven by the method of the embodiment of the present application.
- FIG. 2 is a schematic diagram of liquid crystal response at each sub-pixel when the TGB-FSC liquid crystal display is driven by the GB black insertion in the prior art. The reason for the color shift generation in the prior art will be described below with reference to FIG.
- the first set of curves on the upper side represents the transmittance at the transparent sub-pixel T
- the second set of curves on the lower side represents the transmissive view at the green sub-pixel G and the blue sub-pixel B.
- Over rate When the prior art driving method is used to display one frame of picture, the first color field is turned on first, the white backlight is turned on, and then the transparent sub-pixel T, the green sub-pixel G, and the blue sub-pixel B are turned on. Now suppose that the gray scale values to be achieved by the three sub-pixels are all 128. Since the response of the liquid crystal requires a certain time, when the first color field is turned on, the liquid crystal response process at the transparent sub-pixel T is as shown in FIG. The liquid crystal response process shown at the curve and at the green sub-pixel G and the blue sub-pixel B is shown in the G1/B1 curve in FIG.
- the second color field of the frame picture is turned on, the white backlight is converted into a red backlight, and the transparent sub-pixel T is turned on, and the green sub-pixel G and the blue sub-pixel B are turned off. Since the transparent sub-pixel T has reached 128 gray levels when the first color field is turned on, the liquid crystal response process at the transparent sub-pixel T at this time is as shown in the R1 curve in FIG. 2 (located in the first set of curves on the upper side). There is no major change trend as shown by the curve in the dotted line. The liquid crystal closing process at the green sub-pixel G and the blue sub-pixel B is as shown by curve 1 in the second set of curves on the lower side in FIG. After the second color field scanning is completed, the display of one frame can be realized.
- the red information of the frame picture is formed by transmission in the time zone indicated by the dashed box of the first set of curves on the upper side of FIG. 2, and the green information and the blue information are in the second set of curves located on the lower side of FIG. Transmission is formed in the time zone indicated by the dashed box. It is easy to understand that since the red sub-pixel is not subjected to the opening process of the transparent sub-pixel when the red information is displayed, the green information and the blue information are subjected to the process of opening the corresponding sub-pixels each time the transmission is formed.
- the opening process of the sub-pixel is not negligible with respect to the duration of one color field, so the transmittance of the transparent sub-pixel when displaying the red information is greater than that of the green sub-pixel and blue.
- the transmittance of the color sub-pixels which in turn causes the displayed image to be reddish overall.
- the driving method performs gray scale calculation for one frame picture, and simultaneously uses the gray scale information of the stored previous frame picture to realize driving display of the picture and effectively improve color shift.
- FIG. 3 is a schematic flow chart of a driving method of a liquid crystal display according to an embodiment of the present application. Refer to Figure 3 below The various steps of this embodiment will be described in detail.
- step S310 the grayscale data of the three primary colors (RGB) of one frame of the picture to be displayed is converted into multi-color grayscale data, wherein the multicolor includes three primary colors and a color other than the three primary colors.
- RGB gray scale data (generally a data group) of one frame of the picture to be displayed is converted into XR'G'B' gray scale data, and X is a color other than the three primary colors.
- the multicolor includes four colors of three primary colors and white, that is, X is white and is represented by W.
- the converted WR'G'B' grayscale data is (66, 0, 119, 191). .
- X may be set to cyan (indicated by C), and cyan light may be selected as a color other than the three primary colors, which is advantageous for expanding the color gamut of the liquid crystal display and enriching the displayed color.
- step S320 the first color field and the second color field of the frame picture are sequentially displayed, and when each color field is displayed, a backlight of a predetermined color of the plurality of colors is used as a backlight of the color field, and according to the color field
- the color of the backlight, the multi-color grayscale data of the frame picture, and the pre-stored grayscale data drive different sub-pixels.
- the step includes sub-step S3210 and sub-step S3220.
- sub-step S3210 when the first color field of the frame picture is displayed, a backlight of one of the three primary colors is used as a backlight of the color field, and the multi-color gray scale data of the frame picture is the same as the backlight.
- the gray scale data corresponding to the color is output to the transparent sub-pixel, and the pre-stored gray scale data is output to the remaining sub-pixels.
- the multicolor of the three primary colors RGB and white W is taken as an example, and the scanning process of the first color field is explained with reference to FIG.
- the picture to be displayed is the second frame picture.
- the grayscale data stored in advance includes grayscale data corresponding to colors other than the three primary colors in the multicolor grayscale data of the previous frame. Specifically, in the present embodiment, it refers to gray scale data corresponding to colors other than the three primary colors of the first frame picture that have been stored before the second frame picture is displayed, that is, white gray scale data W1 of the first frame picture.
- the output result of each sub-pixel is as shown in the fifth row data of FIG. 4, the gray scale of the transparent sub-pixel T is R2, and the gray levels of the green sub-pixel G and the blue sub-pixel B are both W1.
- the pre-stored gray level data that is, the white gray level data of the previous frame picture is 0.
- sub-step S3220 when the second color field of the frame picture is displayed, a backlight of a color other than the three primary colors of the multi-color is used as a backlight of the color field, and the multi-color gray scale data of the frame picture is combined with the backlight.
- the gray scale data corresponding to the same color is output to the transparent sub-pixel, and the gray scale data corresponding to the colors of the remaining sub-pixels is output to the remaining sub-pixels.
- a backlight of a color other than the three primary colors of the multi-color that is, a white backlight is used as the backlight of the second color field.
- the second color field of the frame picture is turned on, that is, the red backlight of the first color field is turned off, and the white backlight is turned on, as shown in the sixth line of the column of the "backlight" column in FIG. , W stands for the white backlight to be lit.
- the white gray scale data of the second frame picture is output to the transparent sub-pixel T, and the gray scale data corresponding to the colors of the remaining sub-pixels is correspondingly output to the remaining sub-pixels according to the color, that is, the gray scale data corresponding to the green color Output to the green sub-pixel G, and output the gray scale data corresponding to blue to the blue sub-pixel B.
- the gray level of the transparent sub-pixel T is W2
- the gray level of the green sub-pixel G is G2
- the gray level of the blue sub-pixel B is B2.
- the display of the second frame picture is completed, and the human eye can use the visual persistence to synthesize the second frame picture according to the sequentially received information.
- the gray scale data corresponding to the colors other than the three primary colors in the multi-color gray scale data of the previous frame image stored in advance is output to the remaining sub-pixels, and Does not cause an error in the display of the first color field.
- the green sub-pixel and the blue sub-pixel are both turned on with a certain gray scale value in the first color field, the red backlight is due to the action of the filter at the green sub-pixel and the blue sub-pixel. Transmission through green sub-pixels and blue sub-pixels is not possible.
- the red information is formed through the transparent sub-pixel transmission in the first color field, and before the transparent sub-pixel Grayscale The value is W1; the green information and the blue information are respectively formed by the transmission of the green sub-pixel and the blue sub-pixel in the second color field, and the gray scale values before the green sub-pixel and the blue sub-pixel are both W1, that is, three
- W1 the gray scale values before the green sub-pixel and the blue sub-pixel are both W1
- the process of changing the liquid crystal at the sub-pixel to the next state starts from the same grayscale value W1, which is more advantageous for ensuring the liquid crystal at each sub-pixel during the process of transmitting the three primary color information of the second frame.
- the gray-scale response time is approximately the same, thereby effectively improving the color shift problem caused by the long response time of the liquid crystal.
- the brightness of the backlight of a color other than the three primary colors is smaller than the brightness of the backlight of one of the three primary colors.
- the brightness of the white light as the backlight is smaller than the brightness of the red light as the backlight, which is advantageous in reducing the power consumption of the system while improving the color shift.
- FIG. 5 is a schematic diagram showing the display of a TGB-FSC liquid crystal display driven by the method of the embodiment of the present application.
- the red backlight is first illuminated in the first color field of a frame (as shown by the backlight 1 in FIG. 5), and then the red information is transmitted through the transparent sub-pixel. Pixel transmission is formed (as shown by R in FIG. 5); a white backlight is illuminated in a second color field of a frame (as shown by backlight 2 in FIG.
- the green, blue, and blue information are formed by transmission of transparent sub-pixels, green sub-pixels, and blue sub-pixels, respectively (as shown by W, G, and B in FIG. 5). Finally, the two color occasions that have been received successively by the human eye become a frame with RGB information.
- step S330 grayscale data corresponding to colors other than the three primary colors in the multi-color grayscale data of the to-be-displayed image is stored.
- the gray scale data corresponding to the colors other than the three primary colors in the multi-color gray scale data of the frame picture is stored.
- the gray level data W2 is stored, that is, after the current to-be-displayed picture has been displayed, and the next one is performed.
- the display of the frame picture is stored before.
- the grayscale data corresponding to the colors other than the three primary colors in the multi-color grayscale data of the to-be-displayed image may be replaced with the pre-stored grayscale data, that is, the previous frame.
- Gray scale data corresponding to colors other than the three primary colors in the gray scale data may be separately stored in the form of a list.
- the display method of the third frame picture is the same as the display method of the second frame picture. If the number of gray levels corresponding to the colors other than the three primary colors in the multi-color gray scale data is replaced by the data of the previous frame image According to the storage, the grayscale data corresponding to the colors other than the three primary colors in the multi-color grayscale data of the previous frame of the stored image to be displayed is updated before the first color field of the third frame is opened. It is W2, so W2 is output as the gray level of the green sub-pixel and the blue sub-pixel in the first color field of the third frame picture, and the specific process will not be described again.
- the liquid crystal display since displaying 60 frames per second is the minimum standard for smooth human visual vision, currently the liquid crystal display generally adopts a screen refreshing frequency of 60 frames per second, so the liquid crystal displayed by the colorless partial driving method of the present embodiment is used.
- the screen refresh rate of the display is at least 120 Hz, that is, the switching frequency of the first color field and the second color field is greater than or equal to 120 Hz.
- the driving method of the embodiment of the present application not only can effectively improve the color shift, but also has the advantages of small data amount and fast calculation speed when calculating the gray scale value for driving each sub-pixel.
- the calculation process only one frame of the picture is calculated, and the multi-color gray scale data of the previous frame is stored, which not only significantly reduces the amount of stored data, reduces the cost, but also speeds up the processing. , further improving the fluency of the display.
- the method can also be applied to other types of liquid crystal displays, for example, can be applied to RTB and RGT pixels.
- the design mode of the liquid crystal display to solve the problem of color shift of greenish and bluish, respectively, and will not be described here.
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Abstract
一种液晶显示器及其驱动方法,驱动方法包括以下步骤:将待显示的一帧画面的三原色(RGB)灰阶数据转换成多色的灰阶数据(S310);分别经由两个色场,根据不同色场的背光的颜色、该帧画面的多色灰阶数据和预先存储的灰阶数据对不同的亚像素进行驱动(S320)。从而改善了现有液晶显示器的色偏问题。
Description
相关申请的交叉引用
本申请要求享有2014年12月31日提交的名称为“液晶显示器及其驱动方法”的中国专利申请CN201410856206.4的优先权,该申请的全部内容通过引用并入本文中。
本发明涉及液晶显示器的显示领域,尤其涉及一种液晶显示器及其驱动方法。
为了提高液晶显示器对背光的利用率,减少光损失,近年来,采用彩色场时序(Field Sequential Color,FSC)显示原理的液晶显示器获得了普遍应用。
图1为现有技术中TGB-FSC液晶显示器的显示原理图,其中图1(a)为进行显示时的第一色场的示意图,图1(b)为进行显示时的第二色场的示意图。其中,该液晶显示器的每个显示单元都具有两个彩色滤光片和一个透明滤光片。从图1中可以看出,该液晶显示器显示的每一帧画面都是由第一色场和第二色场这两个色场混合得到的。
具体地,如图1(a)所示,在第一色场开启时,点亮白色背光,且同时开启透明亚像素、绿色亚像素和蓝色亚像素,也就是说,使各亚像素处的液晶分子在电压的作用下发生相应的转动。其中,白色光W经由透明亚像素透射,由于绿色亚像素和蓝色亚像素处的滤光片的作用,绿色光经由绿色亚像素透射,蓝色光经由蓝色亚像素透射。这样,第一色场就具有白色、绿色和蓝色三种颜色的画面信息。在第二色场开启时,如图1(b)所示,关闭白色背光,点亮红色背光,关闭绿色亚像素和蓝色亚像素,且使透明亚像素保持开启状态,那么红色背光将仅经由透明亚像素透射,这样第二色场就具有红色的画面信息。最后,第一色场和第二色场依次进入人眼后经人眼合成得到一帧包含完整彩色信息的画面。
本发明的发明人在研究过程中发现:现有技术的这种FSC液晶显示器在显示时存在色偏现象。例如,在交替使用白色背光和红色背光来显示一帧画面时,
显示的画面会偏红,同时发现产生色偏的原因主要是因为液晶的响应时间较长。
目前针对色偏问题,已经提出了一些解决方案,但效果都不甚理想。主要是因为现有解决方案中,大部分方案计算量巨大,导致执行速度降低,影响了液晶显示器显示时的流畅性。同时由于需要大容量的存储设备配合计算和存储,致使液晶显示器的成本升高。
综上,亟需一种可以高效且低成本地改善色偏的方法,以解决上述问题。
发明内容
本发明所要解决的技术问题之一是需要提供一种可以高效且低成本地改善色偏的方法。
为了解决上述技术问题,本申请的实施例提供了一种液晶显示器的驱动方法,该方法包括以下步骤:将待显示的一帧画面的三原色灰阶数据转换成多色灰阶数据,其中多色包括三原色和一种三原色以外的颜色;依次显示该帧画面的第一色场和第二色场,在显示每一色场时,将多色中的规定颜色的背光作为该色场的背光,并根据该色场的背光的颜色、该帧画面的多色灰阶数据和预先存储的灰阶数据对不同的亚像素进行驱动,其中,预先存储的灰阶数据包括前一帧画面的多色灰阶数据中的三原色以外的颜色所对应的灰阶数据。
优选地,在一帧画面显示完成之后,且在后一帧画面显示之前,对该帧画面的多色灰阶数据中三原色以外的颜色的灰阶数据进行存储。
优选地,在显示一帧画面的第一色场时,将三原色中的一种颜色的背光作为该色场的背光,并将该帧画面的多色灰阶数据中与上述背光相同的颜色所对应的灰阶数据输出给透明亚像素,将预先存储的灰阶数据输出给其余亚像素。
优选地,在显示一帧画面的第二色场时,将多色中三原色以外的颜色的背光作为该色场的背光,并将该帧画面的多色灰阶数据中与上述背光相同的颜色所对应的灰阶数据输出给透明亚像素,将与其余亚像素的颜色相对应的灰阶数据输出给其余亚像素。
优选地,当待显示的一帧画面为第一帧画面时,上述预先存储的灰阶数据为0。
优选地,三原色以外的颜色的背光的亮度小于三原色中的一种颜色的背光的亮度。
优选地,三原色以外的颜色包括白色和青色。
优选地,采用替换的形式用该帧画面的多色灰阶数据中三原色以外的颜色所对应的灰阶数据替换预先存储的灰阶数据。
根据本发明的另一方面,还提供了一种采用上述方法进行驱动的液晶显示器。
优选地,上述液晶显示器的画面刷新频率大于等于120Hz。
与现有技术相比,上述方案中的一个或多个实施例可以具有如下优点或有益效果:
本申请实施例通过采用在两个色场中,按照一定时序将由三原色灰阶数据转换得到的多色灰阶数据分别输出给各亚像素的驱动方式,改善了现有液晶显示器的色偏问题。而且,该无色偏驱动方法还具有存储的数据量小,演算速度快,低成本的优点。
本发明的其它特征和优点将在随后的说明书中阐述,并且部分地从说明书中变得显而易见,或者通过实施本发明而了解。本发明的目的和其他优点可通过在说明书、权利要求书以及附图中所特别指出的结构来实现和获得。
附图用来提供对本发明的进一步理解,并且构成说明书的一部分,与本发明的实施例共同用于解释本发明,并不构成对本发明的限制。在附图中:
图1为现有技术中TGB-FSC液晶显示器的显示原理图,其中图1(a)为进行显示时的第一色场的示意图,图1(b)为进行显示时的第二色场的示意图;
图2为现有技术中TGB-FSC液晶显示器进行GB插黑驱动时,各亚像素处的液晶响应示意图;
图3为本申请实施例的液晶显示器的驱动方法的流程示意图;
图4为本申请实施例的液晶显示器的驱动方法的原理图;
图5为采用本申请实施例的方法进行驱动的TGB-FSC液晶显示器的显示原理图。
以下将结合附图及实施例来详细说明本发明的实施方式,借此对本发明如何应用技术手段来解决技术问题,并达成技术效果的实现过程能充分理解并据以实施。需要说明的是,只要不构成冲突,本发明中的各个实施例以及各实施
例中的各个特征可以相互结合,所形成的技术方案均在本发明的保护范围之内。
图2为现有技术中TGB-FSC液晶显示器进行GB插黑驱动时,各亚像素处的液晶响应示意图。下面参考图2对现有技术中色偏产生的原因进行说明。
在图2中,位于上侧的第一组曲线表示的是透明亚像素T处的透过率,位于下侧的第二组曲线表示的是绿色亚像素G和蓝色亚像素B处的透过率。在采用现有技术的驱动方法来显示一帧画面时,先开启第一色场,点亮白色背光,然后开启透明亚像素T、绿色亚像素G和蓝色亚像素B。现在假设这三个亚像素所要达到的灰阶值都是128,由于液晶的响应需要一定的时间,所以在开启第一色场时,透明亚像素T处的液晶响应过程如图2中的W1曲线所示,以及绿色亚像素G和蓝色亚像素B处的液晶响应过程如图2中的G1/B1曲线所示。
第一色场扫描完成后,开启该帧画面的第二色场,将白色背光转换为红色背光,并开启透明亚像素T,关闭绿色亚像素G和蓝色亚像素B。由于之前在第一色场开启时,透明亚像素T已经达到128灰阶,所以此时透明亚像素T处的液晶响应过程如图2中的R1曲线(位于上侧的第一组曲线中的虚线框内的曲线)所示,没有较大的变化趋势。而绿色亚像素G和蓝色亚像素B处的液晶关闭过程如图2中下侧的第二组曲线中的曲线1所示。第二色场扫描完成后,就可以实现一帧画面的显示。
进一步分析可知,该帧画面的红色信息在位于图2上侧的第一组曲线的虚线框所标示的时间区域内透射形成,绿色信息和蓝色信息在位于图2下侧的第二组曲线的虚线框所标示的时间区域内透射形成。容易理解,由于显示红色信息时不用再经历透明亚像素的开启过程,而绿色信息和蓝色信息在每次透射形成时都要经历相应亚像素的开启的过程。同时由于液晶的响应时间较长,所以亚像素的开启过程相对于一个色场的持续时间来说是不可忽略的,因此透明亚像素在显示红色信息时的透过率会大于绿色亚像素和蓝色亚像素的透过率,进而导致显示的画面整体偏红。
本申请实施例为了解决现有FSC液晶显示器在显示时产生的色偏问题,提出了一种改善色偏的驱动方法。该驱动方法针对一帧画面进行灰阶计算,同时利用存储的前一帧画面的灰阶信息,就可以实现画面的驱动显示,并有效地改善色偏。
图3为本申请实施例的液晶显示器的驱动方法的流程示意图。下面参考图3
来详细说明本实施例的各个步骤。
在步骤S310中,将待显示的一帧画面的三原色(RGB)的灰阶数据转换成多色的灰阶数据,其中多色包括三原色和一种三原色以外的颜色。
具体地,根据特定的转换算法,将待显示的一帧画面的RGB灰阶数据(一般为数据组),转换为XR’G’B’灰阶数据,X为三原色以外的一种颜色。在本实施例中,多色包括三原色和白色这四种颜色,即X为白色,用W表示。
举例而言,若一帧画面的某个像素的RGB灰阶数据为(63,127,191),那么经过转换得到的WR’G’B’灰阶数据为(66,0,119,191)。
当然,在其它的实施例中也可以将X设置为青色(用C表示),选择青色光作为三原色以外的一种颜色,有利于扩展液晶显示器的色域,使显示的色彩更加丰富。
在步骤S320中,依次显示该帧画面的第一色场和第二色场,在显示每一色场时,将多色中的规定颜色的背光作为该色场的背光,并根据该色场的背光的颜色、该帧画面的多色灰阶数据和预先存储的灰阶数据对不同的亚像素进行驱动。
具体地,该步骤包括子步骤S3210和子步骤S3220。
在子步骤S3210中,在显示该帧画面的第一色场时,将三原色中的一种颜色的背光作为该色场的背光,并将该帧画面的多色灰阶数据中与上述背光相同的颜色所对应的灰阶数据输出给透明亚像素,将预先存储的灰阶数据输出给其余亚像素。
为了便于说明本步骤,下面以三原色RGB和白色W组成的多色为例,同时参考图4来说明第一色场的扫描过程。
现在假设待显示的画面是第二帧画面。
具体地,在对第二帧画面进行显示的时候,先开启第一色场,将红色(三原色中的一种颜色)背光作为该色场的背光,点亮该红色背光,如图4中“背光”所在列的第五行数据所示,R代表红色背光被点亮。同时将第二帧画面的红色所对应的灰阶数据输出给透明亚像素T,将预先存储的灰阶数据输出给绿色亚像素G和蓝色亚像素B。
需要说明的是,上述预先存储的灰阶数据包括前一帧画面的多色灰阶数据中的三原色以外的颜色所对应的灰阶数据。具体在本实施例中,指的是在显示第二帧画面之前已经存储了的第一帧画面的三原色以外的颜色所对应的灰阶数据,即第一帧画面的白色的灰阶数据W1。
各亚像素的输出结果如图4中第五行数据所示,透明亚像素T的灰阶为R2,绿色亚像素G和蓝色亚像素B的灰阶均为W1。
另外,需要注意的是,如果待显示的一帧画面为第一帧画面,那么预先存储的灰阶数据,即前一帧画面的白色的灰阶数据为0。
在子步骤S3220中,在显示该帧画面的第二色场时,将多色中三原色以外的颜色的背光作为该色场的背光,并将该帧画面的多色灰阶数据中与上述背光相同的颜色所对应的灰阶数据输出给透明亚像素,将与其余亚像素的颜色相对应的灰阶数据输出给其余亚像素。
具体地,请参考图4,还是以第二帧画面为例,将多色中三原色以外的颜色的背光,即白色背光作为第二色场的背光。在第一色场扫描完成后,开启该帧画面的第二色场,即关闭第一色场的红色背光,点亮白色背光,如图4中“背光”所在列的第六行数据所示,W代表白色背光被点亮。同时将第二帧画面的白色的灰阶数据输出给透明亚像素T,将与其余亚像素的颜色相对应的灰阶数据根据颜色对应地输出给其余亚像素,即将绿色所对应的灰阶数据输出给绿色亚像素G,将蓝色所对应的灰阶数据输出给蓝色亚像素B。如图4中第六行数据所示,透明亚像素T的灰阶为W2,绿色亚像素G的灰阶为G2,蓝色亚像素B的灰阶为B2。
在第二色场扫描完成后,第二帧画面的显示完成,人眼可以根据依次接收到的信息,利用视觉暂留合成第二帧画面。
需要说明的是,在显示一帧画面的第一色场时,将预先存储的前一帧画面的多色灰阶数据中的三原色以外的颜色所对应的灰阶数据输出给其余亚像素,并不会导致第一色场的显示结果发生错误。这是因为,尽管在第一色场中绿色亚像素和蓝色亚像素都以一定的灰阶值开启了,但由于绿色亚像素和蓝色亚像素处的滤光片的作用,所以红色背光不能经由绿色亚像素和蓝色亚像素进行透射。
按照上述的方法步骤进行第一色场和第二色场的扫描,能够有效地改善之前图2所示的色偏问题,具体原因如下。
通过观察图4所示的液晶显示器的驱动方法的原理图可以发现,在同一帧画面的两个色场中,透射形成三原色(RGB)信息的各亚像素处的液晶的起始的灰阶值是相同的。
具体地,如图4中的第四行、第五行和第六行数据所示,在显示第二帧画面时,红色信息在第一色场中经由透明亚像素透射形成,且透明亚像素之前的灰阶
值为W1;绿色信息和蓝色信息在第二色场中分别经由绿色亚像素和蓝色亚像素透射形成,且绿色亚像素和蓝色亚像素之前的灰阶值均为W1,即三个亚像素处的液晶变化到下一状态的过程都是从相同的灰阶值W1开始的,这样更有利于保证在透射形成第二帧画面的三原色信息的过程中,各亚像素处的液晶的灰阶响应时间大致相同,进而有效地改善由于液晶的响应时间较长而导致的色偏问题。
另外需要说明的是,作为背光,三原色以外的颜色的背光的亮度小于三原色中的一种颜色的背光的亮度。具体地,在TGB显示方案中,作为背光的白色光的亮度小于作为背光的红色光的亮度,这样在改善色偏的同时还有利于降低系统的功耗。
图5为采用本申请实施例的方法进行驱动的TGB-FSC液晶显示器的显示原理图。根据本申请实施例的方法步骤,在一帧画面的第一色场中先点亮红色背光(如图5中的背光1所示),然后通过对各亚像素进行驱动,红色信息经由透明亚像素透射形成(如图5中的R所示);在一帧画面的第二色场中点亮白色背光(如图5中的背光2所示),然后通过对各亚像素进行驱动,白色、绿色和蓝色信息分别经由透明亚像素、绿色亚像素和蓝色亚像素透射形成(如图5中的W、G和B所示)。最后经由人眼将先后接收到的两个色场合成为一帧具有RGB信息的画面。
在步骤S330中,存储待显示画面的多色灰阶数据中三原色以外的颜色所对应的灰阶数据。
具体地,在该帧画面显示完成之后,且在后一帧画面显示之前,对该帧画面的多色灰阶数据中三原色以外的颜色所对应的灰阶数据进行存储。
举例而言,如图4所示,假如经过步骤S310和S320已经完成第二帧画面的显示,那么将灰阶数据W2进行存储,即在当前待显示画面已经显示完成之后,且在进行后一帧画面的显示之前进行存储。
优选地,为了节省存储空间,可以采用替换的形式将待显示画面的多色灰阶数据中三原色以外的颜色所对应的灰阶数据替换预先存储的灰阶数据,即前一帧画面的的多色灰阶数据中的三原色以外的颜色所对应的灰阶数据。当然,在其他例子中,可以采用列表的形式对每帧画面的多色灰阶数据中三原色以外的颜色所对应的灰阶数据分别存储。
接下来第三帧画面的显示方法与第二帧画面的显示方法相同。如果是以替换前一帧画面的数据的方式对多色灰阶数据中三原色以外的颜色所对应的灰阶数
据进行存储,那么在开启第三帧画面的第一色场之前,已经将已存储的待显示画面的前一帧画面的多色灰阶数据中的三原色以外的颜色所对应的灰阶数据更新为W2,所以将以W2作为第三帧画面第一色场中绿色亚像素和蓝色亚像素的灰阶进行输出,具体过程不再赘述。
另外,由于每秒显示60帧画面是人眼视觉流畅的最低标准,所以目前液晶显示器普遍采用的是每秒60帧的画面刷新频率,因此利用本实施例的无色偏驱动方法进行显示的液晶显示器的画面刷新频率最低为120Hz,即第一色场和第二色场的切换频率要大于等于120Hz。
相比于现有技术,本申请实施例的驱动方法不仅能够有效地改善色偏,而且在对驱动各亚像素的灰阶值进行计算时,具有数据量小,计算速度快的优点。同时由于在计算过程中,只对一帧画面进行计算,且利用已存储的前一帧画面的多色灰阶数据,不但显著地减少了存储的数据量,降低了成本,还能够加快处理速度,进一步提高了显示的流畅性。
需要说明的是,虽然上述是以TGB-FSC液晶显示器为例对无色偏驱动方法的实施步骤进行说明的,但本方法同样可以应用于其他类型的液晶显示器,例如可以应用在RTB与RGT像素设计模式的液晶显示器中,以分别解决偏绿和偏蓝的色偏问题,此处不再赘述。
虽然本发明所公开的实施方式如上,但所述的内容只是为了便于理解本发明而采用的实施方式,并非用以限定本发明。任何本发明所属技术领域内的技术人员,在不脱离本发明所公开的精神和范围的前提下,可以在实施的形式上及细节上作任何的修改与变化,但本发明的专利保护范围,仍须以所附的权利要求书所界定的范围为准。
Claims (10)
- 一种液晶显示器的驱动方法,该方法包括以下步骤:将待显示的一帧画面的三原色灰阶数据转换成多色灰阶数据,其中多色包括三原色和一种三原色以外的颜色;依次显示该帧画面的第一色场和第二色场,在显示每一色场时,将多色中的规定颜色的背光作为该色场的背光,并根据该色场的背光的颜色、该帧画面的多色灰阶数据和预先存储的灰阶数据对不同的亚像素进行驱动,其中,所述预先存储的灰阶数据包括前一帧画面的多色灰阶数据中的三原色以外的颜色所对应的灰阶数据。
- 根据权利要求1所述的驱动方法,其中,还包括以下步骤:在所述该帧画面显示完成之后,且在后一帧画面显示之前,对该帧画面的多色灰阶数据中三原色以外的颜色所对应的灰阶数据进行存储。
- 根据权利要求1所述的驱动方法,其中,在显示该帧画面的第一色场时,将三原色中的一种颜色的背光作为该色场的背光,并将该帧画面的多色灰阶数据中与所述背光相同的颜色所对应的灰阶数据输出给透明亚像素,将预先存储的灰阶数据输出给其余亚像素。
- 根据权利要求1所述的驱动方法,其中,在显示该帧画面的第二色场时,将多色中三原色以外的颜色的背光作为该色场的背光,并将该帧画面的多色灰阶数据中与所述背光相同的颜色所对应的灰阶数据输出给透明亚像素,将与其余亚像素的颜色相对应的灰阶数据输出给其余亚像素。
- 根据权利要求1所述的驱动方法,其中,当待显示的一帧画面为第一帧画面时,所述预先存储的灰阶数据为0。
- 根据权利要求1所述的驱动方法,其中,所述三原色以外的颜色的背光的亮度小于三原色中的一种颜色的背光的亮度。
- 根据权利要求1所述的驱动方法,其中,所述三原色以外的颜色包括白色和青色。
- 根据权利要求2所述的驱动方法,其中,采用替换的形式用该帧画面的多色灰阶数据中三原色以外的颜色所对应的灰阶数据替换预先存储的灰阶数据。
- 一种液晶显示器,采用下述驱动方法进行显示:将待显示的一帧画面的三原色灰阶数据转换成多色灰阶数据,其中多色包括三原色和一种三原色以外的颜色;依次显示该帧画面的第一色场和第二色场,在显示每一色场时,将多色中的规定颜色的背光作为该色场的背光,并根据该色场的背光的颜色、该帧画面的多色灰阶数据和预先存储的灰阶数据对不同的亚像素进行驱动,其中,所述预先存储的灰阶数据包括前一帧画面的多色灰阶数据中的三原色以外的颜色所对应的灰阶数据。
- 根据权利要求9所述的液晶显示器,其中,所述液晶显示器的画面刷新频率大于等于120Hz。
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW200828235A (en) * | 2006-12-29 | 2008-07-01 | Wintek Corp | Field sequential liquid crystal display and driving method thereof |
CN201535998U (zh) * | 2009-08-24 | 2010-07-28 | 华映视讯(吴江)有限公司 | 色序显示装置 |
CN101840671A (zh) * | 2009-03-16 | 2010-09-22 | 华映视讯(吴江)有限公司 | 色序法显示器的适应性回授控制方法 |
CN104050945A (zh) * | 2014-06-26 | 2014-09-17 | 深圳市华星光电技术有限公司 | 色序型液晶显示器及其驱动方法 |
CN104111552A (zh) * | 2014-08-08 | 2014-10-22 | 深圳市华星光电技术有限公司 | 多基色液晶显示器及其驱动方法 |
CN104517580A (zh) * | 2014-12-31 | 2015-04-15 | 深圳市华星光电技术有限公司 | 液晶显示器及其驱动方法 |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW200828235A (en) * | 2006-12-29 | 2008-07-01 | Wintek Corp | Field sequential liquid crystal display and driving method thereof |
CN101840671A (zh) * | 2009-03-16 | 2010-09-22 | 华映视讯(吴江)有限公司 | 色序法显示器的适应性回授控制方法 |
CN201535998U (zh) * | 2009-08-24 | 2010-07-28 | 华映视讯(吴江)有限公司 | 色序显示装置 |
CN104050945A (zh) * | 2014-06-26 | 2014-09-17 | 深圳市华星光电技术有限公司 | 色序型液晶显示器及其驱动方法 |
CN104111552A (zh) * | 2014-08-08 | 2014-10-22 | 深圳市华星光电技术有限公司 | 多基色液晶显示器及其驱动方法 |
CN104517580A (zh) * | 2014-12-31 | 2015-04-15 | 深圳市华星光电技术有限公司 | 液晶显示器及其驱动方法 |
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