WO2016070455A1 - 液晶面板及其像素单元设定方法 - Google Patents

液晶面板及其像素单元设定方法 Download PDF

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WO2016070455A1
WO2016070455A1 PCT/CN2014/091130 CN2014091130W WO2016070455A1 WO 2016070455 A1 WO2016070455 A1 WO 2016070455A1 CN 2014091130 W CN2014091130 W CN 2014091130W WO 2016070455 A1 WO2016070455 A1 WO 2016070455A1
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pixel
sub
liquid crystal
crystal panel
blue sub
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PCT/CN2014/091130
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English (en)
French (fr)
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陈黎暄
康志聪
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深圳市华星光电技术有限公司
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Priority to GB1707614.2A priority Critical patent/GB2546943A/en
Priority to US14/435,461 priority patent/US9786214B2/en
Priority to DE112014007030.0T priority patent/DE112014007030T5/de
Priority to JP2017522802A priority patent/JP2017538148A/ja
Priority to KR1020177010842A priority patent/KR102008073B1/ko
Publication of WO2016070455A1 publication Critical patent/WO2016070455A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • 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
    • 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
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • 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
    • G09G3/3685—Details of drivers for data electrodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • 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
    • G09G2300/0443—Pixel structures with several sub-pixels for the same colour in a pixel, not specifically used to display gradations
    • G09G2300/0447—Pixel structures with several sub-pixels for the same colour in a pixel, not specifically used to display gradations for multi-domain technique to improve the viewing angle in a liquid crystal display, such as multi-vertical alignment [MVA]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • 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
    • 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
    • G09G2310/0264—Details of driving circuits
    • G09G2310/027—Details of drivers for data electrodes, the drivers handling digital grey scale data, e.g. use of D/A converters
    • 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
    • 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
    • G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
    • G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness

Definitions

  • the present invention relates to the field of liquid crystal display technologies, and in particular, to a liquid crystal panel and its pixel unit setting.
  • a liquid crystal display or LCD (Liquid Crystal Display) is a flat, ultra-thin display device composed of a certain number of color or black-and-white pixels placed in front of a light source or a reflector.
  • LCD monitors have low power consumption and are characterized by high image quality, small size, and light weight. Therefore, they are favored by everyone and become the mainstream of displays.
  • Liquid crystal displays have been widely used in various electronic products, such as computer devices with display screens, mobile phones, or digital photo frames, and the wide viewing angle technology is one of the development priorities of current liquid crystal displays. However, when the viewing angle of the side view or the squint is too large, a wide viewing angle liquid crystal display often has a color shift and a light leakage phenomenon.
  • each pixel unit is divided into a main pixel area (Sub pixel) and a sub-pixel area (Sub pixel) having unequal areas, and a main pixel area in the same pixel unit and The sub-pixel regions are connected to different data lines and the same gate line.
  • different data signals different gray scale values
  • the number of data lines of the input data signal is twice the original, which affects the transmittance and reduces the display quality of the liquid crystal panel.
  • the invention also provides a liquid crystal display.
  • a pixel unit setting method of a liquid crystal panel includes a plurality of pixel units, each of the pixel units including at least a blue sub-pixel; the method includes
  • the blue sub-pixel is divided into a main pixel region M and a sub-pixel region S, the area ratio of the main pixel region M and the sub-pixel region S is a: b;
  • ⁇ 1 LvM ⁇ + LvS ⁇ - LvGx ⁇
  • ⁇ 2 LvM ⁇ + LvS ⁇ - LvGx ⁇
  • y ⁇ 1 2 + ⁇ 2 2 ;
  • the corresponding gray scales Gmx and Gsx are set to gray scales input to the main pixel area M and the sub-pixel area S when the blue sub-pixel is gray scale Gx;
  • Step 15 is repeated for each grayscale of the blue sub-pixels of the pixel unit, and then the grayscales input to the main pixel region M and the sub-pixel region S respectively in all the grayscales in the pixel unit are acquired.
  • the front view angle ⁇ is 0°
  • the squint angle ⁇ is 30 to 80°.
  • the gray scale of the liquid crystal panel includes 256 gray scales, ranging from 0 to 255, wherein the highest gray scale is 255.
  • the step of acquiring the actual brightness value Lv ⁇ of each gray level G of the blue sub-pixel of the liquid crystal panel under the front view angle ⁇ includes:
  • the actual brightness value Lv ⁇ is determined from the gamma curve.
  • the step of acquiring the actual brightness value of each gray level G of the blue sub-pixel of the liquid crystal panel at the squint angle ⁇ includes:
  • the actual luminance value Lv ⁇ is determined from the gamma curve.
  • the pixel unit further includes a red sub-pixel and a green sub-pixel.
  • the data parameter of the blue sub-pixel is reset, the data signals of the red sub-pixel and the green sub-pixel remain unchanged.
  • the main pixel area M and the sub-pixel area S of the blue sub-pixel are respectively connected with data lines for providing data signals.
  • a pixel unit setting method of a liquid crystal panel includes a plurality of pixel units, each of the pixel units including at least a blue sub-pixel, a red sub-pixel, and a green sub-pixel; wherein the method includes
  • the actual brightness value is drawn Dividing, and establishing a correspondence relationship between the grayscale value and the actual luminance value in the main pixel region M and the pixel region S;
  • the present invention also provides a liquid crystal display comprising a backlight module and a liquid crystal panel disposed opposite to the backlight module, the backlight module providing a display light source to the liquid crystal panel, the liquid crystal panel comprising a plurality of pixel units, each pixel unit At least a blue sub-pixel is included;
  • the method for setting a pixel unit in the liquid crystal panel includes: S10, dividing the blue sub-pixel into a main pixel area M and a sub-pixel area S, the main pixel area M and a sub-pixel area The area ratio of S is a:b;
  • step S15 Determine one gray level Gx of the blue sub-pixels, and the gray levels of the predetermined input to the main pixel area M and the sub-pixel area S are Gmx and Gsx, respectively, according to the result of step S13.
  • the actual luminance values LvM ⁇ and LvM ⁇ and LvS ⁇ and LvS ⁇ , and the theoretical luminance values LvGx ⁇ and LvGx ⁇ obtained from the results of the above step S14 are calculated as follows:
  • ⁇ 1 LvM ⁇ + LvS ⁇ - LvGx ⁇
  • ⁇ 2 LvM ⁇ + LvS ⁇ - LvGx ⁇
  • y ⁇ 1 2 + ⁇ 2 2 ;
  • the corresponding gray scales Gmx and Gsx are set to gray scales input to the main pixel area M and the sub-pixel area S when the blue sub-pixel is gray scale Gx;
  • Step 15 is repeated for each grayscale of the blue sub-pixels of the pixel unit, and then the grayscales input to the main pixel region M and the sub-pixel region S respectively in all the grayscales in the pixel unit are acquired.
  • the liquid crystal panel further includes a gate controller and a source controller, the gate controller provides a scan signal to the pixel unit through a plurality of scan lines, and the source controller provides the pixel unit through a plurality of data lines Data signal.
  • the invention divides the blue sub-pixel in the traditional RGB three-pixel liquid crystal panel into two different main pixel regions M and the second under the premise that the data signals R and G of the red sub-pixel and the green sub-pixel remain unchanged.
  • the pixel area S is re-set the data parameter, and the main pixel area M and the sub-pixel area S are respectively connected to the data signal line, and different data signals are input to the main pixel area M and the sub-pixel area S to improve the color generated under the large viewing angle.
  • a partial problem and the blue pixels intersecting the red sub-pixel and the green sub-pixel have the least influence on the brightness, and after the gray-scale value is reset, the probability of affecting the transmittance is reduced.
  • FIG. 1 is a schematic structural diagram of a liquid crystal display according to an embodiment of the present invention.
  • FIG. 2 is a schematic plan view of a portion of a pixel unit of a liquid crystal panel according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of a grayscale value setting method according to an embodiment of the present invention.
  • the liquid crystal display of the present invention includes a backlight module 10 and a liquid crystal panel 12 disposed opposite to the backlight module 10 .
  • the backlight module 10 provides a display light source to the liquid crystal panel 12
  • the liquid crystal panel 12 includes a plurality of pixel units 14 .
  • Each pixel unit includes at least a blue sub-pixel, a red sub-pixel, and a green sub-pixel; a meta-setting method of each pixel unit includes,
  • each pixel unit includes at least a blue sub-pixel; for the liquid crystal panel, the element setting method of the pixel unit provided in this embodiment is mainly used to respectively set the grayscale value of the blue word pixel. , the method includes,
  • Step S10 the blue sub-pixel 14 is divided into a main pixel area M and a sub-pixel area S, the area ratio of the main pixel area M and the sub-pixel area S is a: b;
  • Step S11 acquiring an actual brightness value Lv ⁇ of each gray level G of the blue sub-pixel of the liquid crystal panel under the front view angle ⁇ ;
  • Step S12 acquiring an actual brightness value Lv ⁇ of each gray level G of the blue sub-pixel of the liquid crystal panel at a squint angle ⁇ ;
  • Step S13 according to the area ratio of the main pixel area M and the pixel area S, the actual bright will be
  • Step S14 the actual brightness values Lv ⁇ (max) and Lv ⁇ (max) of the highest gray level max obtained according to steps S11 and S12, combined with the formula gamma( ⁇ ) and Calculating theoretical brightness values LvGx ⁇ and LvGx ⁇ of the gray scale G of the blue sub-pixel of the liquid crystal panel under the front view angle ⁇ and the squint angle ⁇ ;
  • Step S15 determining one gray scale Gx of the blue sub-pixels, the gray levels of the predetermined input to the main pixel region M and the sub-pixel region S are Gmx and Gsx, respectively, and the actual luminance value LvM ⁇ obtained according to the result of step S13 described above. Calculating the following relationship with LvM ⁇ and LvS ⁇ and LvS ⁇ , and obtaining the theoretical luminance values LvGx ⁇ and LvGx ⁇ according to the result of the above step S14:
  • ⁇ 1 LvM ⁇ + LvS ⁇ - LvGx ⁇
  • ⁇ 2 LvM ⁇ + LvS ⁇ - LvGx ⁇
  • y ⁇ 1 2 + ⁇ 2 2 ;
  • the corresponding gray scales Gmx and Gsx are set to gray scales input to the main pixel area M and the sub-pixel area S when the blue sub-pixel is gray scale Gx;
  • Step S16 repeating step 15 for each gray level of the blue sub-pixel of the pixel unit, and further acquiring gray scales input to the main pixel area M and the sub-pixel area S respectively in all the gray levels in the pixel unit.
  • the main pixel region M and the sub-pixel region S are divided by a black matrix, and may be divided by a opaque metal wire.
  • the liquid crystal panel 12 further includes a gate controller and a source controller, the gate controller supplies a scan signal to the pixel unit through a plurality of scan lines G, and the source controller passes the plurality of data lines D to the pixel unit Provide data signals.
  • the front view angle ⁇ is 0°
  • the squint angle ⁇ is 60°.
  • the squint angle ⁇ may also be selected within a range of 30 to 80 degrees.
  • the gray scale of the liquid crystal panel includes 256 gray scales, ranging from 0 to 255, of which the most The high gray level is 255. Said
  • the step of acquiring the actual brightness value Lv ⁇ of each gray level G of the blue sub-pixel of the liquid crystal panel under the front view angle ⁇ includes:
  • the actual brightness value Lv ⁇ is determined from the gamma curve.
  • the step of acquiring the actual brightness value of each gray level G of the blue sub-pixel of the liquid crystal panel at the squint angle ⁇ includes:
  • the actual luminance value Lv ⁇ is determined from the gamma curve.
  • step 13 acquires actual luminance values of each gray scale G of the main pixel region M under the front view angle ⁇ and the squint angle ⁇ , LvM ⁇ and LvM ⁇ ; the sub-pixel region S is at a front view angle.
  • the actual luminance values of each gray scale G under ⁇ and the squint angle ⁇ can also be obtained by the following methods:
  • a detailed process of the gray-scale division of the main pixel area M and the sub-pixel area S of the method will be described in detail.
  • the actual brightness values Lv0 (0-255) and Lv60 (0-255) are divided into LvM0 and LvM60, and LvS0 and LvS60. And satisfying the relationship
  • the gray levels of the predetermined input to the main pixel region M and the sub-pixel region S are Gmx and Gsx, respectively, according to the pixel region M and
  • the correspondence relationship between the gray scale G and the actual luminance value in the sub-pixel region S is obtained by LvM0, LvM60, LvS0, LvS60, and the following relationship is calculated from the results of the above theoretical luminance values: LvGx0 and LvGx60:
  • the gray scales Gmx and Gsx at this time are set to be the main pixels when the blue sub-pixel is gray-scale Gx. Gray scale input by the region M and the sub-pixel region S;
  • the invention divides the blue sub-pixel in the traditional RGB three-pixel liquid crystal panel into two different main pixel regions M and the second under the premise that the data signals R and G of the red sub-pixel and the green sub-pixel remain unchanged.
  • the pixel area S is re-set the data parameter, and the main pixel area M and the sub-pixel area S are respectively connected to the data signal line, and different data signals are input to the main pixel area M and the sub-pixel area S to improve the color generated under the large viewing angle.
  • a partial problem and the blue pixels intersecting the red sub-pixel and the green sub-pixel have the least influence on the brightness, and after the gray-scale value is reset, the probability of affecting the transmittance is reduced.

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Abstract

一种液晶面板(12)的像素单元设定方法，所述液晶面板(12)包括多个像素单元(14)，每个像素单元(14)至少包括蓝色子像素；该方法包括，将所述蓝色子像素分割为主像素区域M及次像素区域S，所述主像素区域M及次像素区域S的面积比为a:b；获取所述液晶面板(12)的蓝色子像素在正视角度α及斜视角度β下的每一灰阶G的实际亮度值Lvα与Lvβ；设定输入一像素单元的所述主像素区域M及次像素区域S的灰阶组合，使得该像素在正视角度及斜视角度下，实际亮度值与理论亮度值的差值之和最小，进而获取所述像素单元(14)中所有灰阶中分别向主像素区域M和次像素区域S输入的灰阶。

Description

液晶面板及其像素单元设定方法
本发明要求2014年11月5日递交的发明名称为“液晶面板及其像素单元设定方法”的申请号201410620800.3的在先申请优先权，上述在先申请的内容以引入的方式并入本文本中。
技术领域
本发明涉及液晶显示器技术领域,尤其涉及一种液晶面板及其像素单元设定。
背景技术
液晶显示器，或称LCD(Liquid Crystal Display)，为平面超薄的显示设备，它由一定数量的彩色或黑白像素组成，放置于光源或者反射板前方。液晶显示器功耗很低，并且具有高画质、体积小、重量轻的特点，因此倍受大家青睐，成为显示器的主流。液晶显示器已广泛使用于各种电子产品中，例如，具显示屏幕的计算机设备、行动电话、或数字相框等，而广视角技术为目前液晶显示器的发展重点之一。然而，当侧看或斜视的视角过大时，广视角液晶显示器常会发生色偏(color shift)及漏光现象。
对于广视角液晶显示器发生色偏现象的问题，目前业界中出现了一种采用2D1G技术进行改善。所谓2D1G技术，就是指在液晶面板中，将每一像素单元(pixel)分为面积不等的主像素区域(Main pixel)和次像素区域(Sub pixel),同一像素单元中的主像素区域和次像素区域连接到不同的数据线(Data line)和相同扫描线(Gate line)。通过对主像素区域和次像素区域输入不同的数据信号(不同的灰阶值)，产生不同的显示亮度和斜视亮度，达到降低侧看或斜视时产生的色偏问题。但是，对于每一个像素单元，划分为主像素区域和次像素区域之后，其输入数据信号的数据线的数量为原来的两倍，这会影响穿透率，降低了液晶面板的显示质量。
发明内容
本发明的目的在于提供一种液晶面板及其像素单元设定方法，降低对穿透率的影响，减小侧看或斜视时产生的色偏问题。
本发明还提供一种液晶显示器。
一种液晶面板的像素单元设定方法，所述液晶面板包括多个像素单元，每个像素单元至少包括蓝色子像素；该方法包括，
S10、将所述蓝色子像素分割为主像素区域M及次像素区域S，所述主像素区域M及次像素区域S的面积比为a:b；
S11、获取所述液晶面板的蓝色子像素在正视角度α下的每一灰阶G的实际亮度值Lvα；
S12、获取所述液晶面板的蓝色子像素在斜视角度β下的每一灰阶G的实际亮度值Lvβ；
S13、根据所述主像素区域M及此像素区域S的面积比，将实际亮度值Lvα与Lvβ按照下列公式进行划分；
LvMα∶LvSα＝a∶b，LvMα+LvSα＝Lvα；
LvMβ∶LvSβ＝a∶b，LvMβ+LvSβ＝Lvβ；
获取所述主像素区域M在正视角度α及斜视角度β下的每一灰阶G的实际亮度值LvMα与LvMβ；获取所述次像素区域S在正视角度α及斜视角度β下的每一灰阶G的实际亮度值LvSα与LvSβ；
S14、根据步骤S11及S12获取的最高灰阶max的实际亮度值Lvα(max)与Lvβ(max)，结合公式gamma(γ)以及
Figure PCTCN2014091130-appb-000001
计算出所述液晶面板的蓝色子像素在正视角度α及斜视角度β下的灰阶G的理论亮度值LvGxα与LvGxβ；
S15、确定所述蓝色子像素中的一个灰阶Gx，预定输入到主像素区域M和次像素区域S的灰阶分别为Gmx和Gsx，根据上述步骤S13的结果得到的实际亮度值LvMα与LvMβ及LvSα与LvSβ，以及根据上述步骤S14的结果得到理论亮度值LvGxα与LvGxβ计算以下关系式：
Δ1＝LvMα+LvSα-LvGxα；Δ2＝LvMβ+LvSβ-LvGxβ；y＝Δ12+Δ22；
当y取得最小值时对应的灰阶Gmx和Gsx设定为在所述蓝色子像素为灰阶Gx时向主像素区域M和次像素区域S输入的灰阶；
S16、对于像素单元的蓝色子像素的每个灰阶重复步骤15，进而获取所述像素单元中所有灰阶中分别向主像素区域M和次像素区域S输入的灰阶。
其中，所述正视角度α为0°，所述斜视角度β为30～80°。
其中，所述液晶面板的灰阶包括256个灰阶，从0～255，其中最高灰阶为255。
其中，所述获取所述液晶面板的蓝色子像素在正视角度α下的每一灰阶G的实际亮度值Lvα的步骤包括：
通过直接量测在正视角度α下的gamma曲线；
从gamma曲线上确定所述实际亮度值Lvα。
其中，获取所述液晶面板的蓝色子像素在斜视角度β下的每一灰阶G的实际亮度值的步骤包括：
通过直接量测在斜视角度β下的gamma曲线Lvβ；
从gamma曲线上确定所述实际亮度值Lvβ。
其中，所述像素单元还包括红色子像素和绿色子像素，在重新设定蓝色子像素的数据参数时，红色子像素和绿色子像素的数据信号保持不变。
其中，所述蓝色子像素的主像素区域M及次像素区域S分别连接有提供数据信号的数据线。
其中，所述主像素区域M及次像素区域S在斜视角度下的亮度曲线Gamma(γ)曲线中，γ＝2.2。
一种液晶面板的像素单元设定方法，所述液晶面板包括多个像素单元，每个像素单元至少包括蓝色子像素、红色子像素和绿色子像素；其特征在于，该方法包括，
将所述蓝色子像素按照一定的面积比进行分割为主像素区域M及次像素区域S；
获取所述液晶面板的蓝色子像素在正视角度α及斜视角度β下的每一灰阶G的实际亮度值；
根据所述主像素区域M及此像素区域S的面积比，将实际亮度值进行划 分，并且建立主像素区域M及此像素区域S中灰阶值与实际亮度值的对应关系；
获取最高灰阶的实际亮度值，计算每一灰阶的理论亮度值，设定输入一像素单元的所述主像素区域M及此像素区域S的灰阶组合，使得该像素在正视角度及斜视角度下，实际亮度值与理论亮度值的差值之和最小。
本发明还提供一种液晶显示器，包括背光模组及与背光模组相对设置的液晶面板，所述背光模组提供显示光源给液晶面板，所述液晶面板包括多个像素单元，每个像素单元至少包括蓝色子像素；所述液晶面板设定像素单元的方法包括：S10、将所述蓝色子像素分割为主像素区域M及次像素区域S，所述主像素区域M及次像素区域S的面积比为a:b；
S11、获取所述液晶面板的蓝色子像素在正视角度α下的每一灰阶G的实际亮度值Lvα；
S12、获取所述液晶面板的蓝色子像素在斜视角度β下的每一灰阶G的实际亮度值Lvβ；
S13、根据所述主像素区域M及此像素区域S的面积比，将实际亮度值Lvα
与Lvβ按照下列公式进行划分；
LvMα∶LvSα＝a∶b，LvMα+LvSα＝Lvα；
LvMβ∶LvSβ＝a∶b，LvMβ+LvSβ＝Lvβ；
获取所述主像素区域M在正视角度α及斜视角度β下的每一灰阶G的实际亮度值LvMα与LvMβ；获取所述次像素区域S在正视角度α及斜视角度β下的每一灰阶G的实际亮度值LvSα与LvSβ；
S14、根据步骤S11及S12获取的最高灰阶max的实际亮度值Lvα(max)与Lvβ(max)，结合公式gamma(γ)以及
Figure PCTCN2014091130-appb-000002
计算出所述液晶面板的蓝色子像素在正视角度α及斜视角度β下的灰阶G的理论亮度值LvGxα与LvGxβ；
S15、确定所述蓝色子像素中的一个灰阶Gx，预定输入到主像素区域M和次像素区域S的灰阶分别为Gmx和Gsx，根据上述步骤S13的结果得到的 实际亮度值LvMα与LvMβ及LvSα与LvSβ，以及根据上述步骤S14的结果得到理论亮度值LvGxα与LvGxβ计算以下关系式：
Δ1＝LvMα+LvSα-LvGxα；Δ2＝LvMβ+LvSβ-LvGxβ；y＝Δ12+Δ22；
当y取得最小值时对应的灰阶Gmx和Gsx设定为在所述蓝色子像素为灰阶Gx时向主像素区域M和次像素区域S输入的灰阶；
S16、对于像素单元的蓝色子像素的每个灰阶重复步骤15，进而获取所述像素单元中所有灰阶中分别向主像素区域M和次像素区域S输入的灰阶。
其中，该液晶面板还包括栅控制器和源控制器，所述栅控制器通过多条扫描线向所述像素单元提供扫描信号，所述源控制器通过多条数据线向所述像素单元提供数据信号。
本发明是在红色子像素和绿色子像素的数据信号R和G保持不变的前提下，将传统的RGB三像素液晶面板中的蓝色子像素分割为两个不同的主像素区域M和次像素区域S，并重新设定数据参数，主像素区域M和次像素区域S分别连接数据信号线，对主像素区域M和次像素区域S输入不同的数据信号，改善大视角情况下产生的色偏问题；而且所述蓝色像素相交于红色子像素和绿色子像素对亮度的影响最低，在灰阶值重新设置后，减小对所述穿透率的影响几率。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例提供的液晶显示器的结构示意图。
图2是本发明实施例提供的液晶面板的部分像素单元的平面示意图。
图3是本发明实施例提供的灰阶值设定方法的流程图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清 楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参阅图1与图3，本发明的液晶显示器包括背光模组10及与背光模组10相对设置的液晶面板12。所述背光模组10提供显示光源给液晶面板12，所述液晶面板12包括多个像素单元14。每个像素单元至少包括蓝色子像素、红色子像素和绿色子像素；每一像素单元的元设定方法包括，
将所述蓝色子像素按照一定的面积比进行分割为主像素区域M及次像素区域S；
获取所述液晶面板的蓝色子像素在正视角度α及斜视角度β下的每一灰阶G的实际亮度值；
根据所述主像素区域M及此像素区域S的面积比，将实际亮度值进行划分，并且建立主像素区域M及此像素区域S中灰阶值与实际亮度值的对应关系；
获取最高灰阶的实际亮度值，计算每一灰阶的理论亮度值，设定输入一像素单元的所述主像素区域M及此像素区域S的灰阶组合，使得该像素在正视角度及斜视角度下，实际亮度值与理论亮度值的差值之和最小。
本实施例中，每个像素单元至少包括蓝色子像素；对于所述的液晶面板，本实施例提供的像素单元的元设定方法，主要用于分别设定蓝色字像素的灰阶值，该方法包括，
步骤S10、将所述蓝色子像素14分割为主像素区域M及次像素区域S，所述主像素区域M及次像素区域S的面积比为a:b；
步骤S11、获取所述液晶面板的蓝色子像素在正视角度α下的每一灰阶G的实际亮度值Lvα；
步骤S12、获取所述液晶面板的蓝色子像素在斜视角度β下的每一灰阶G的实际亮度值Lvβ；
步骤S13、根据所述主像素区域M及此像素区域S的面积比，将实际亮
度值Lvα与Lvβ按照下列公式进行划分；
LvMα∶LvSα＝a∶b，LvMα+LvSα＝Lvα；
LvMβ∶LvSβ＝a∶b，LvMβ+LvSβ＝Lvβ；
获取所述主像素区域M在正视角度α及斜视角度β下的每一灰阶G的实际亮度值LvMα与LvMβ；获取所述次像素区域S在正视角度α及斜视角度β下的每一灰阶G的实际亮度值为LvSα与LvSβ；
步骤S14、根据步骤S11及S12获取的最高灰阶max的实际亮度值Lvα(max)与Lvβ(max)，结合公式gamma(γ)以及
Figure PCTCN2014091130-appb-000003
计算出所述液晶面板的蓝色子像素在正视角度α及斜视角度β下的灰阶G的理论亮度值LvGxα与LvGxβ；
步骤S15、确定所述蓝色子像素中的一个灰阶Gx，预定输入到主像素区域M和次像素区域S的灰阶分别为Gmx和Gsx，根据上述步骤S13的结果得到的实际亮度值LvMα与LvMβ及LvSα与LvSβ，以及根据上述步骤S14的结果得到理论亮度值LvGxα与LvGxβ计算以下关系式：
Δ1＝LvMα+LvSα-LvGxα；Δ2＝LvMβ+LvSβ-LvGxβ；y＝Δ12+Δ22；
当y取得最小值时对应的灰阶Gmx和Gsx设定为在所述蓝色子像素为灰阶Gx时向主像素区域M和次像素区域S输入的灰阶；
步骤S16、对于像素单元的蓝色子像素的每个灰阶重复步骤15，进而获取所述像素单元中所有灰阶中分别向主像素区域M和次像素区域S输入的灰阶。
其中，所述主像素区域M和次像素区域S之间通过黑矩阵的形式分割，也可以通过不透光的金属线进行分割。
该液晶面板12还包括栅控制器和源控制器，所述栅控制器通过多条扫描线G向所述像素单元提供扫描信号，所述源控制器通过多条数据线D向所述像素单元提供数据信号。
进一步的，所述主像素区域M及次像素区域S在斜视角度下的亮度曲线Gamma(γ)曲线中，γ＝2.2。
进一步的，在本实施例中，正视角度α为0°，斜视角度β为60°。在其它实施例中，所述所述斜视角度β也可以在30～80°范围内选取。
在本实施例中，所述液晶面板的灰阶包括256个灰阶，从0～255，其中最 高灰阶为255。所述
进一步的，所述获取所述液晶面板的蓝色子像素在正视角度α下的每一灰阶G的实际亮度值Lvα的步骤包括：
通过直接量测在正视角度α下的gamma曲线；
从gamma曲线上确定所述实际亮度值Lvα。
进一步的，获取所述液晶面板的蓝色子像素在斜视角度β下的每一灰阶G的实际亮度值的步骤包括：
通过直接量测在斜视角度β下的gamma曲线Lvβ；
从gamma曲线上确定所述实际亮度值Lvβ。
本发明的其他实施方式中，步骤13获取所述主像素区域M在正视角度α及斜视角度β下的每一灰阶G的实际亮度值为LvMα与LvMβ；所述次像素区域S在正视角度α及斜视角度β下的每一灰阶G的实际亮度值为LvSα与LvSβ还可以通过一下方式获得：
先获取所述液晶面板的蓝色子像素在正视角度α下的实际亮度与灰阶的关系曲线G0-LvαG0；然后从关系曲线G0-LvαG0中查找LvMα与LvSα的取值。
先获取所述液晶面板的蓝色子像素在斜视角度β下的实际亮度与灰阶的关系曲线G0-LvβG0；然后从关系曲线G0-LvβG0查找取得LvMβ与LvSβ的取值。
以预定的主像素区域M及次像素区域S的面积比为a:b＝2:1，Gamma(γ)曲线中γ＝2.2，正视角度α＝0°，斜视角度β＝60°为具体的例子，对本方法的主像素区域M及次像素区域S的灰灰阶划分具体过程进行详细说明。
首先获取液晶面板在正视角度α＝0°，斜视角度β＝60°下的Gamma(γ)曲线，根据该曲线确定在正视角度0°，斜视角度60°下每一灰阶G的实际亮度值Lv0(0-255)与Lv60(0-255)。
然后，按照主像素区域M及次像素区域S的面积比为a:b＝2：1，将实际亮度值Lv0(0-255)与Lv60(0-255)划分为LvM0与LvM60及LvS0与LvS60，并且满足关系式
LvM0：LvS0＝2:1,LvM0+LvS0＝Lv0
LvM60：LvS60＝2:1,LvM60+LvS60＝Lv60；
获取所述主像素区域M在正视角度0°及斜视角度60°下的每一灰阶G的实际亮度值LvM0(0-255)与LvM60(0-255)；获取所述次像素区域S在正视角度0°及斜视角度60°下的每一灰阶G的实际亮度值LvS0(0-255)与LvS60(0-255)，建立主像素区域M及次像素区域S中灰阶G与实际亮度值的对应关系；
再次，根据最高灰阶255的实际亮度值Lv0(255)与Lv60(255)，结合公式gamma(γ)＝2.2以及
Figure PCTCN2014091130-appb-000004
计算出所述液晶面板的蓝色子像素在正视角度α及斜视角度β下的灰阶G的理论亮度值LvG0(0-255)与LvG60(0-255)；
最后，确定所述蓝色子像素中的一个灰阶Gx(0-255中的一个)，预定输入到主像素区域M和次像素区域S的灰阶分别为Gmx和Gsx，根据像素区域M及次像素区域S中灰阶G与实际亮度值的对应关系得到LvM0、LvM60、LvS0、LvS60以及根据上述理论亮度值的结果得LvGx0与LvGx60计算以下关系式：
Δ1＝LvM0+LvS0-LvGx0；Δ2＝LvM60+LvS60-LvGx06；y＝Δ12+Δ22；
通过多次Gmx和Gsx取值的组合尝试，当组合值使上述当y取得最小值时将此时的灰阶Gmx和Gsx设定为在所述蓝色子像素为灰阶Gx时向主像素区域M和次像素区域S输入的灰阶；
最后，对于像素单元的蓝色子像素的每个灰阶重复上述步骤，进而获取所述像素单元中所有灰阶(0-255)中分别向主像素区域M和次像素区域S输入的灰阶。
本发明是在红色子像素和绿色子像素的数据信号R和G保持不变的前提下，将传统的RGB三像素液晶面板中的蓝色子像素分割为两个不同的主像素区域M和次像素区域S，并重新设定数据参数，主像素区域M和次像素区域S分别连接数据信号线，对主像素区域M和次像素区域S输入不同的数据信号，改善大视角情况下产生的色偏问题；而且所述蓝色像素相交于红色子像素和绿色子像素对亮度的影响最低，在灰阶值重新设置后，减小对所述穿透率的影响几率。
以上所揭露的仅为本发明较佳实施例而已，当然不能以此来限定本发明之权利范围，本领域普通技术人员可以理解实现上述实施例的全部或部分流程，并依本发明权利要求所作的等同变化，仍属于发明所涵盖的范围。

Claims (11)

  1. 一种液晶面板的像素单元设定方法，所述液晶面板包括多个像素单元，每个像素单元至少包括蓝色子像素；其特征在于，该方法包括，
    S10、将所述蓝色子像素分割为主像素区域M及次像素区域S，所述主像素区域M及次像素区域S的面积比为a:b；
    S11、获取所述液晶面板的蓝色子像素在正视角度α下的每一灰阶G的实际亮度值Lvα；
    S12、获取所述液晶面板的蓝色子像素在斜视角度β下的每一灰阶G的实际亮度值Lvβ；
    S13、根据所述主像素区域M及此像素区域S的面积比，将实际亮度值Lvα与Lvβ按照下列公式进行划分；
    LvMα∶LvSα＝a：b，LvMα+LvSα＝Lvα；
    LvMβ∶LvSβ＝a：b，LvMβ+LvSβ＝Lvβ；
    获取所述主像素区域M在正视角度α及斜视角度β下的每一灰阶G的实际亮度值LvMα与LvMβ；获取所述次像素区域S在正视角度α及斜视角度β下的每一灰阶G的实际亮度值LvSα与LvSβ；
    S14、根据步骤S11及S12获取的最高灰阶max的实际亮度值Lvα(max)与Lvβ(max)，结合公式gamma(γ)以及
    Figure PCTCN2014091130-appb-100001
    计算出所述液晶面板的蓝色子像素在正视角度α及斜视角度β下的灰阶G的理论亮度值LvGxα与LvGxβ；
    S15、确定所述蓝色子像素中的一个灰阶Gx，预定输入到主像素区域M和次像素区域S的灰阶分别为Gmx和Gsx，根据上述步骤S13的结果得到的实际亮度值LvMα与LvMβ及LvSα与LvSβ，以及根据上述步骤S14的结果得到理论亮度值LvGxα与LvGxβ计算以下关系式：
    Δ1＝LvMα+LvSα-LvGxα；Δ2＝LvMβ+LvSβ-LvGxβ；y＝Δ12+Δ22；
    当y取得最小值时对应的灰阶Gmx和Gsx设定为在所述蓝色子像素为灰 阶Gx时向主像素区域M和次像素区域S输入的灰阶；
    S16、对于像素单元的蓝色子像素的每个灰阶重复步骤15，进而获取所述像素单元中所有灰阶中分别向主像素区域M和次像素区域S输入的灰阶。
  2. 如权利要求1所述的液晶面板的像素单元设定方法，其特征在于，所述正视角度α为0°，所述斜视角度β为30～80°。
  3. 如权利要求1所述的液晶面板的像素单元设定方法，其特征在于，所述液晶面板的灰阶包括256个灰阶，从0～255，其中最高灰阶为255。
  4. 如权利要求1所述的液晶面板的像素单元设定方法，其特征在于，所述获取所述液晶面板的蓝色子像素在正视角度α下的每一灰阶G的实际亮度值Lvα的步骤包括：
    通过直接量测在正视角度α下的gamma曲线；
    从gamma曲线上确定所述实际亮度值Lvα。
  5. 如权利要求4所述的液晶面板的像素单元设定方法，其特征在于，获取所述液晶面板的蓝色子像素在斜视角度β下的每一灰阶G的实际亮度值的步骤包括：
    通过直接量测在斜视角度β下的gamma曲线Lvβ；
    从gamma曲线上确定所述实际亮度值Lvβ。
  6. 如权利要求1所述的液晶面板的像素单元设定方法，其特征在于，所述像素单元还包括红色子像素和绿色子像素，在重新设定蓝色子像素的数据参数时，红色子像素和绿色子像素的数据信号保持不变。
  7. 如权利要求6所述的液晶面板的像素单元设定方法，其特征在于，所述蓝色子像素的主像素区域M及次像素区域S分别连接有提供数据信号的数据 线。
  8. 如权利要求1所述的液晶面板的像素单元设定方法，其特征在于，所述主像素区域M及次像素区域S在斜视角度下的亮度曲线Gamma(γ)曲线中，γ＝2.2。
  9. 一种液晶面板的像素单元设定方法，所述液晶面板包括多个像素单元，每个像素单元至少包括蓝色子像素、红色子像素和绿色子像素；其特征在于，该方法包括，
    将所述蓝色子像素按照一定的面积比进行分割为主像素区域M及次像素区域S；
    获取所述液晶面板的蓝色子像素在正视角度α及斜视角度β下的每一灰阶G的实际亮度值；
    根据所述主像素区域M及此像素区域S的面积比，将实际亮度值进行划分，并且建立主像素区域M及此像素区域S中灰阶值与实际亮度值的对应关系；
    获取最高灰阶的实际亮度值，计算每一灰阶的理论亮度值，设定输入一像素单元的所述主像素区域M及此像素区域S的灰阶组合，使得该像素在正视角度及斜视角度下，实际亮度值与理论亮度值的差值之和最小。
  10. 一种液晶显示器，包括背光模组及与背光模组相对设置的液晶面板，所述背光模组提供显示光源给液晶面板，所述液晶面板包括多个像素单元，其特征在于，每个像素单元至少包括蓝色子像素；所述液晶面板设定像素单元的方法包括：
    S10、将所述蓝色子像素分割为主像素区域M及次像素区域S，所述主像素区域M及次像素区域S的面积比为a:b；
    S11、获取所述液晶面板的蓝色子像素在正视角度α下的每一灰阶G的实际亮度值Lvα；
    S12、获取所述液晶面板的蓝色子像素在斜视角度β下的每一灰阶G的实 际亮度值Lvβ；
    S13、根据所述主像素区域M及此像素区域S的面积比，将实际亮度值Lvα与Lvβ按照下列公式进行划分；
    LvMα：LvSα＝a：b，LvMα+LvSα＝Lvα；
    LvMβ：LvSβ＝a：b，LvMβ+LvSβ＝Lvβ；
    获取所述主像素区域M在正视角度α及斜视角度β下的每一灰阶G的实际亮度值LvMα与LvMβ；获取所述次像素区域S在正视角度α及斜视角度β下的每一灰阶G的实际亮度值LvSα与LvSβ；
    S14、根据步骤S11及S12获取的最高灰阶max的实际亮度值Lvα(max)与Lvβ(max)，结合公式gamma(γ)以及
    Figure PCTCN2014091130-appb-100002
    计算出所述液晶面板的蓝色子像素在正视角度α及斜视角度β下的灰阶G的理论亮度值LvGxα与LvGxβ；
    S15、确定所述蓝色子像素中的一个灰阶Gx，预定输入到主像素区域M和次像素区域S的灰阶分别为Gmx和Gsx，根据上述步骤S13的结果得到的实际亮度值LvMα与LvMβ及LvSα与LvSβ，以及根据上述步骤S14的结果得到理论亮度值LvGxα与LvGxβ计算以下关系式：
    Δ1＝LvMα+LvSα-LvGxα；Δ2＝LvMβ+LvSβ-LvGxβ；y＝Δ12+Δ22；
    当y取得最小值时对应的灰阶Gmx和Gsx设定为在所述蓝色子像素为灰阶Gx时向主像素区域M和次像素区域S输入的灰阶；
    S16、对于像素单元的蓝色子像素的每个灰阶重复步骤15，进而获取所述像素单元中所有灰阶中分别向主像素区域M和次像素区域S输入的灰阶。
  11. 如权利要求9述的液晶面板的液晶显示器，其特征在于，该液晶面板还包括栅控制器和源控制器，所述栅控制器通过多条扫描线向所述像素单元提供扫描信号，所述源控制器通过多条数据线向所述像素单元提供数据信号。
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