CN104299592B - 液晶面板及其驱动方法 - Google Patents

液晶面板及其驱动方法 Download PDF

Info

Publication number
CN104299592B
CN104299592B CN201410626054.9A CN201410626054A CN104299592B CN 104299592 B CN104299592 B CN 104299592B CN 201410626054 A CN201410626054 A CN 201410626054A CN 104299592 B CN104299592 B CN 104299592B
Authority
CN
China
Prior art keywords
liquid crystal
crystal panel
pixel cell
making
blue subpixels
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201410626054.9A
Other languages
English (en)
Other versions
CN104299592A (zh
Inventor
康志聪
陈黎暄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TCL China Star Optoelectronics Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to CN201410626054.9A priority Critical patent/CN104299592B/zh
Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to JP2017522841A priority patent/JP6609802B2/ja
Priority to DE112014007142.0T priority patent/DE112014007142T5/de
Priority to GB1705879.3A priority patent/GB2545849B/en
Priority to US14/426,742 priority patent/US20160335944A1/en
Priority to RU2017115560A priority patent/RU2660628C1/ru
Priority to KR1020177014194A priority patent/KR101980026B1/ko
Priority to PCT/CN2014/090936 priority patent/WO2016070448A1/zh
Publication of CN104299592A publication Critical patent/CN104299592A/zh
Application granted granted Critical
Publication of CN104299592B publication Critical patent/CN104299592B/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/2007Display of intermediate tones
    • G09G3/2074Display of intermediate tones using sub-pixels
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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
    • G09G3/3607Control 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
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/2007Display of intermediate tones
    • G09G3/2044Display of intermediate tones using dithering
    • G09G3/2051Display of intermediate tones using dithering with use of a spatial dither pattern
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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
    • G09G3/3611Control of matrices with row and column drivers
    • G09G3/3674Details of drivers for scan electrodes
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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
    • G09G3/3611Control of matrices with row and column drivers
    • G09G3/3685Details of drivers for data electrodes
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00Aspects of the constitution of display devices
    • G09G2300/04Structural and physical details of display devices
    • G09G2300/0439Pixel structures
    • G09G2300/0452Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00Aspects of the constitution of display devices
    • G09G2300/04Structural and physical details of display devices
    • G09G2300/0439Pixel structures
    • G09G2300/0465Improved aperture ratio, e.g. by size reduction of the pixel circuit, e.g. for improving the pixel density or the maximum displayable luminance or brightness
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/0242Compensation of deficiencies in the appearance of colours
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/028Improving the quality of display appearance by changing the viewing angle properties, e.g. widening the viewing angle, adapting the viewing angle to the view direction
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/0285Improving the quality of display appearance using tables for spatial correction of display data
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/06Adjustment of display parameters
    • G09G2320/0626Adjustment of display parameters for control of overall brightness
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/06Adjustment of display parameters
    • G09G2320/0673Adjustment of display parameters for control of gamma adjustment, e.g. selecting another gamma curve

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Liquid Crystal (AREA)

Abstract

本发明公开了一种液晶面板的驱动方法,包括:提供一液晶面板,所述液晶面板包括多个像素单元,每一像素单元至少包括蓝色子像素;将所述液晶面板划分为多个显示单元,每一显示单元包括相邻的第一像素单元和第二像素单元;对于所述显示单元需要的蓝色子像素灰阶值B,向所述第一像素单元中的蓝色子像素提供灰阶值BH,向所述第二像素单元中的蓝色子像素提供灰阶值BL;其中,灰阶值BH与BL的组合,使得该显示单元的蓝色子像素在斜视角度下的亮度曲线趋近于预定的Gamma(γ)曲线,其中,γ=1.8~2.4。本发明还公开了一种采用如上所述驱动方法进行驱动的液晶面板。

Description

液晶面板及其驱动方法
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驱动方法。
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)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,这会大大减小了液晶面板的开口率,影响穿透率,降低了液晶面板的显示质量。
发明内容
有鉴于此,本发明目的是提供一种液晶面板及其驱动方法,通过改变液晶面板的驱动方法,在传统的RGB三像素液晶面板中模拟2D1G面板的显示,达到降低侧看或斜视时产生的色偏问题。
为了实现上述目的,本发明采用了如下的技术方案:
一种液晶面板的驱动方法,其中,包括:
提供一液晶面板,所述液晶面板包括多个像素单元,每一像素单元至少包括蓝色子像素;
将所述液晶面板划分为多个显示单元,每一显示单元包括相邻的第一像素单元和第二像素单元;
对于所述显示单元需要的蓝色子像素的灰阶值B,向所述第一像素单元中的蓝色子像素提供灰阶值BH,向所述第二像素单元中的蓝色子像素提供灰阶值BL;其中,灰阶值BH与BL的组合,使得该显示单元的蓝色子像素在斜视角度下的亮度曲线趋近于预定的Gamma(γ)曲线,其中,γ=1.8~2.4。
优选地,将灰阶值B划分为灰阶值BH与BL组合的步骤具体包括:
S101、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B0-LvαB0
S102、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B0-LvβB0
S103、根据公式:分别计算获取所述液晶面板的蓝色子像素在正视角度α和斜视角度β下的理论亮度与灰阶的关系曲线B-LvαB和B-LvβB;
S104、对于所述显示单元需要的蓝色子像素灰阶值B,输入到第一像素单元中的蓝色子像素的灰阶值BH与输入到第二像素单元中的蓝色子像素的灰阶值BL满足以下关系式:
Δ1=LvαB+LvαB-Lvα(BH)-Lvα(BL);
Δ2=LvβB+LvβB-Lvβ(BH)-Lvβ(BL);
y=Δ12+Δ22
其中,y取最小值,LvαB和LvβB的取值从关系曲线B-LvαB和B-LvβB查找取得,Lvα(BH)和Lvα(BL)从关系曲线B0-LvαB0查找取得,Lvβ(BH)和Lvβ(BL)从关系曲线B0-LvβB0查找取得;
S105、对于所述显示单元需要的蓝色子像素的每一个灰阶值B,根据步骤S104,都获得相应的一个灰阶值BH与BL的组合,重新制定该液晶面板关于蓝色子像素的显示查找表LUT。
优选地,所述正视角度α为0°,所述斜视角度β为30~80°。
优选地,所述斜视角度β为60°。
优选地,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。
优选地,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。
优选地,所述液晶面板的灰阶包括256个灰阶,从0~255。
优选地,所述预定的Gamma(γ)曲线中,γ=2.2。
本发明的另一方面是提供一种液晶面板,包括栅控制器、源控制器以及像素单元,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,其中,所述液晶面板的驱动方法采用如上所述的驱动方法。
有益效果:
本发明提供的液晶面板及其驱动方法,传统的RGB三像素液晶面板中通过改变其驱动方法模拟2D1G面板的显示,达到降低侧看或斜视时产生的色偏问题,同时又不较小液晶面板的开口率,保障了液晶面板的显示品质。
附图说明
图1是本发明实施例提供的液晶面板的结构示意图。
图2是本发明实施例提供的液晶面板中划分显示单元的示例性图示。
图3是本发明实施例提供的驱动方法中向显示单元提供数据信号的示例性图示。
图4是本发明实施例提供液晶面板中蓝色子像素的正视角度和斜视角度的实际亮度曲线图。
具体实施方式
为了使本发明的目的、技术方案以及优点更加清楚明白,下面将结合附图用实施例对本发明做进一步说明。
参阅图1,传统的液晶面板主要包括具有多个像素单元5a、5b的显示区域1、栅控制器2和源控制器3,所述栅控制器2通过多条扫描线向所述像素单元5a、5b提供扫描信号,所述源控制器3通过多条数据线向所述像素单元5a、5b提供数据信号。其中,每一像素单元5a、5b包括红色子像素51、绿色子像素52以及蓝色子像素53。
本实施例的目的是通过改变液晶面板的驱动方法,在如上传统的RGB三像素液晶面板中模拟2D1G面板的显示,达到降低侧看或斜视时产生的色偏问题。
为此,如图1和图2所示的,首先将液晶面板的显示区域1划分为多个显示单元4,每一显示单元4包括相邻的第一像素单元5a和第二像素单元5b。在驱动该液晶面板时,对于显示单元4需要的蓝色子像素53的灰阶值B,向第一像素单元5a中的蓝色子像素53提供灰阶值BH,向所述第二像素单元5b中的蓝色子像素53提供灰阶值BL;其中,灰阶值BH与BL的组合,使得该显示单元的蓝色子像素53在斜视角度下的亮度曲线趋近于预定的Gamma(γ)曲线,其中,Gamma(γ)曲线根据实际液晶面板的需要确定,γ的取值可以为1.8~2.4。图3为向显示单元4输入数据信号的示例性图示,如图3所示的,在显示单元4的两个像素单元5a、5b中,在重新设定的蓝色子像素53的数据参数BH与BL时,红色子像素51和绿色子像素52的数据信号R和G保持不变。
其中,所述正视角度α为0°,所述斜视角度β的范围是30~80°。
其中,结合附图1-3的示意图,将灰阶值B划分为灰阶值BH与BL组合的步骤具体包括:
S101、获取所述液晶面板的蓝色子像素53在正视角度α下的实际亮度与灰阶的关系曲线B0-LvαB0
S102、获取所述液晶面板的蓝色子像素53在斜视角度β下的实际亮度与灰阶的关系曲线B0-LvβB0
S103、根据公式:分别计算获取所述液晶面板的蓝色子像素在正视角度α和斜视角度β下的理论亮度与灰阶的关系曲线B-LvαB和B-LvβB。
S104、对于所述显示单元4需要的蓝色子像素53灰阶值B,输入到第一像素单元5a中的蓝色子像素53的灰阶值BH与输入到第二像素单元5b中的蓝色子像素53的灰阶值BL满足以下关系式:
Δ1=LvαB+LvαB-Lvα(BH)-Lvα(BL);
Δ2=LvβB+LvβB-Lvβ(BH)-Lvβ(BL);
y=Δ12+Δ22
其中,y取最小值,LvαB和LvβB的取值从关系曲线B-LvαB和B-LvβB查找取得,Lvα(BH)和Lvα(BL)从关系曲线B0-LvαB0查找取得,Lvβ(BH)和Lvβ(BL)从关系曲线B0-LvβB0查找取得。
S105、对于所述显示单元4需要的蓝色子像素53的每一个灰阶值B,根据步骤S104,都获得相应的一个灰阶值BH与BL的组合,重新制定该液晶面板关于蓝色子像素53的显示查找表(LOOK UP TABLE,LUT)。
下面以预定的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,对将灰阶值B划分为灰阶值BH与BL组合的具体过程进行详细说明。
首先,分别获取所述液晶面板的蓝色子像素53在正视角度α=0°下的实际亮度与灰阶的关系曲线B0-Lv0B0和在斜视角度β=60°下的实际亮度与灰阶的关系曲线B0-Lv60B0。如图4所示的关系曲线图。其中该液晶面板的灰阶包括256个灰阶,从0~255。
然后,根据公式:分别计算获取液晶面板的蓝色子像素53在正视角度α=0°和斜视角度β=60°下的理论亮度与灰阶的关系曲线B-Lv0B和B-Lv60B。其中,在前述公式中,正视角度α=0°时Lv(255)取前述曲线B0-Lv0B0中B0=255对应的亮度值,在斜视角度β=60°时Lv(255)取前述曲线B0-Lv60B0中B0=255对应的亮度值。
进一步地,若显示单元4需要的蓝色子像素53的灰阶值B(即原来需要输入到第一像素单元5a和第二像素单元5b中的蓝色子像素53的灰阶值均为B),作为替换灰阶值B,输入到第一像素单元5a中的蓝色子像素53的灰阶值BH与输入到第二像素单元5b中的蓝色子像素53的灰阶值BL满足以下关系式:
Δ1=Lv0B+Lv0B-Lv0(BH)-Lv0(BL);
Δ2=Lv60B+Lv60B-Lv60(BH)-Lv60(BL);
y=Δ12+Δ22
其中,当确定需要的蓝色子像素53的灰阶值B时,从理论亮度曲线B-Lv0B和B-Lv60B查找取得Lv0B和Lv60B的取值,此时,从实际亮度曲线B0-Lv0B0查找出Lv0(BH)和Lv0(BL),从实际亮度曲线B0-Lv60B0查找Lv60(BH)和Lv60(BL),使得上述关系式中y的取值最小,得到相应的灰阶值BH与BL。
最后,对于所述显示单元4需要的蓝色子像素53的每一个灰阶值B,根据前述的计算方式都获得相应的一个BH与BL的组合,重新制定该液晶面板关于蓝色子像素53的显示查找表(LOOK UP TABLE,LUT)。在驱动液晶面板时,若显示一幅画面时,若显示单元4需要的蓝色子像素53的灰阶值B,则从该显示查找表中确定向第一像素单元5a中的蓝色子像素53提供灰阶值BH,向所述第二像素单元5b中的蓝色子像素53提供灰阶值BL。
如上实施例提供的液晶面板及其驱动方法,首先将传统的液晶面板划分显示单元,每一显示单元包括两个相邻的像素单元,对应显示单元需要的蓝色子像素的灰阶B,向其中一个像素单元中的蓝色子像素提供灰阶值BH,向另一个像素单元中的蓝色子像素提供灰阶值BL,达到2D1G面板的显示效果,降低侧看或斜视时产生的色偏问题,同时又不较小液晶面板的开口率,保障了液晶面板的显示品质。
显然,本发明的保护范围并不局限于上诉的具体实施方式,本领域的技术人员可以对发明进行各种改动和变型而不脱离本发明的精神和范围。这样,倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内,则本发明也意图包含这些改动和变型在内。

Claims (8)

1.一种液晶面板的驱动方法,其特征在于,包括:
提供一液晶面板,所述液晶面板包括多个像素单元,每一像素单元至少包括蓝色子像素;
将所述液晶面板划分为多个显示单元,每一显示单元包括相邻的第一像素单元和第二像素单元;
对于所述显示单元需要的蓝色子像素的灰阶值B,向所述第一像素单元中的蓝色子像素提供灰阶值BH,向所述第二像素单元中的蓝色子像素提供灰阶值BL;其中,灰阶值BH与BL的组合,使得该显示单元的蓝色子像素在斜视角度下的亮度曲线趋近于预定的Gamma(γ)曲线,其中,γ=1.8~2.4;
其中,将灰阶值B划分为灰阶值BH与BL组合的步骤具体包括:
S101、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B0-LvαB0
S102、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B0-LvβB0
S103、根据公式:分别计算获取所述液晶面板的蓝色子像素在正视角度α和斜视角度β下的理论亮度与灰阶的关系曲线B-LvαB和B-LvβB;
S104、对于所述显示单元需要的蓝色子像素灰阶值B,输入到第一像素单元中的蓝色子像素的灰阶值BH与输入到第二像素单元中的蓝色子像素的灰阶值BL满足以下关系式:
Δ1=LvαB+LvαB-Lvα(BH)-Lvα(BL);
Δ2=LvβB+LvβB-Lvβ(BH)-Lvβ(BL);
y=Δ12+Δ22
其中,y取最小值,LvαB和LvβB的取值从关系曲线B-LvαB和B-LvβB查找取得,Lvα(BH)和Lvα(BL)从关系曲线B0-LvαB0查找取得,Lvβ(BH)和Lvβ(BL)从关系曲线B0-LvβB0查找取得;
S105、对于所述显示单元需要的蓝色子像素的每一个灰阶值B,根据步骤S104,都获得相应的一个灰阶值BH与BL的组合,重新制定该液晶面板关于蓝色子像素的显示查找表LUT。
2.根据权利要求1所述的驱动方法,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.根据权利要求2所述的驱动方法,其特征在于,所述斜视角度β为60°。
4.根据权利要求1所述的驱动方法,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。
5.根据权利要求1所述的驱动方法,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。
6.根据权利要求1所述的驱动方法,其特征在于,所述液晶面板的灰阶包括256个灰阶,从0~255。
7.根据权利要求1-6任一所述的驱动方法,其特征在于,所述预定的Gamma(γ)曲线中,γ=2.2。
8.一种液晶面板,包括栅控制器、源控制器以及像素单元,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,其特征在于,所述液晶面板的驱动方法采用如权利要求1-7任一所述的驱动方法。
CN201410626054.9A 2014-11-07 2014-11-07 液晶面板及其驱动方法 Expired - Fee Related CN104299592B (zh)

Priority Applications (8)

Application Number Priority Date Filing Date Title
CN201410626054.9A CN104299592B (zh) 2014-11-07 2014-11-07 液晶面板及其驱动方法
DE112014007142.0T DE112014007142T5 (de) 2014-11-07 2014-11-12 Flüssigkristall-Panel und ein entsprechendes Antriebsverfahren
GB1705879.3A GB2545849B (en) 2014-11-07 2014-11-12 Liquid crystal panel and driving method thereof
US14/426,742 US20160335944A1 (en) 2014-11-07 2014-11-12 Liquid crystal panel and driving method thereof
JP2017522841A JP6609802B2 (ja) 2014-11-07 2014-11-12 液晶パネルの青色サブ画素のグレースケール値の設定方法
RU2017115560A RU2660628C1 (ru) 2014-11-07 2014-11-12 Жидкокристаллическая панель и способ управления такой панелью
KR1020177014194A KR101980026B1 (ko) 2014-11-07 2014-11-12 액정 패널 및 그 구동 방법
PCT/CN2014/090936 WO2016070448A1 (zh) 2014-11-07 2014-11-12 液晶面板及其驱动方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410626054.9A CN104299592B (zh) 2014-11-07 2014-11-07 液晶面板及其驱动方法

Publications (2)

Publication Number Publication Date
CN104299592A CN104299592A (zh) 2015-01-21
CN104299592B true CN104299592B (zh) 2016-11-23

Family

ID=52319293

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410626054.9A Expired - Fee Related CN104299592B (zh) 2014-11-07 2014-11-07 液晶面板及其驱动方法

Country Status (8)

Country Link
US (1) US20160335944A1 (zh)
JP (1) JP6609802B2 (zh)
KR (1) KR101980026B1 (zh)
CN (1) CN104299592B (zh)
DE (1) DE112014007142T5 (zh)
GB (1) GB2545849B (zh)
RU (1) RU2660628C1 (zh)
WO (1) WO2016070448A1 (zh)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104599656B (zh) * 2015-02-16 2017-04-05 深圳市华星光电技术有限公司 校正液晶面板的子像素的成像时灰阶的方法
CN104835468B (zh) * 2015-05-21 2018-02-13 深圳市华星光电技术有限公司 液晶面板及其驱动方法
CN104900203B (zh) * 2015-06-11 2017-05-17 深圳市华星光电技术有限公司 液晶面板及其驱动方法
CN104952412B (zh) 2015-07-15 2018-04-13 深圳市华星光电技术有限公司 液晶面板的驱动方法及驱动装置
CN105096856B (zh) * 2015-07-23 2018-03-20 深圳市华星光电技术有限公司 液晶面板的驱动方法及驱动装置
TWI567709B (zh) * 2015-10-26 2017-01-21 友達光電股份有限公司 顯示面板
CN105528999B (zh) * 2016-01-15 2018-05-08 合一智能科技(深圳)有限公司 液晶显示屏的显示控制方法和装置
TWI603314B (zh) * 2016-11-30 2017-10-21 友達光電股份有限公司 顯示器的控制方法
CN107154240B (zh) * 2016-12-20 2018-06-26 惠科股份有限公司 液晶显示器件及其液晶显示面板的驱动方法
CN106842724B (zh) * 2016-12-20 2018-02-16 惠科股份有限公司 液晶显示器件及其驱动方法
CN106683627B (zh) 2016-12-20 2018-01-23 惠科股份有限公司 液晶显示器件及其驱动方法
CN106981275B (zh) * 2017-05-10 2018-03-27 惠科股份有限公司 显示面板像素驱动方法及显示装置
CN107256699B (zh) * 2017-05-26 2020-03-17 惠科股份有限公司 像素驱动方法及显示装置
CN107134270B (zh) * 2017-07-06 2018-08-03 惠科股份有限公司 显示面板的驱动方法及显示装置
CN107358929B (zh) * 2017-08-28 2019-03-05 惠科股份有限公司 显示装置视角补偿计算的方法、视角补偿结构及显示装置
CN108231015B (zh) * 2017-12-21 2019-12-31 惠科股份有限公司 显示装置的驱动方法、驱动装置及显示装置
CN107993624B (zh) * 2017-12-21 2019-12-03 惠科股份有限公司 显示装置的驱动方法、驱动装置及显示装置
CN107967902B (zh) * 2017-12-21 2020-03-31 惠科股份有限公司 显示装置的驱动方法、驱动装置及显示装置
CN108231019B (zh) * 2017-12-21 2020-09-11 惠科股份有限公司 显示装置的驱动方法、驱动装置及显示装置
CN108133691B (zh) * 2017-12-21 2020-08-11 惠科股份有限公司 显示装置的驱动方法、驱动装置及显示装置
CN107967900B (zh) * 2017-12-21 2020-09-11 惠科股份有限公司 显示装置的驱动方法、驱动装置及显示装置
CN107993625B (zh) * 2017-12-21 2020-09-11 惠科股份有限公司 显示装置的驱动方法、驱动装置及显示装置
CN109166550B (zh) * 2018-10-10 2020-12-29 惠科股份有限公司 显示装置的驱动方法和显示装置
US10777151B2 (en) 2018-10-10 2020-09-15 HKC Corporation Limited Driving method of display device and display device
CN109637475A (zh) * 2018-12-21 2019-04-16 惠科股份有限公司 显示面板的伽马调试方法
CN109509419A (zh) * 2018-12-24 2019-03-22 惠科股份有限公司 显示面板和显示装置
CN109581772A (zh) * 2018-12-24 2019-04-05 惠科股份有限公司 显示面板和显示装置

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3999081B2 (ja) * 2002-01-30 2007-10-31 シャープ株式会社 液晶表示装置
JP2005352483A (ja) * 2004-06-09 2005-12-22 Samsung Electronics Co Ltd 液晶表示装置及びその駆動方法
TWI297482B (en) * 2004-11-22 2008-06-01 Au Optronics Corp Viewing-angle adjustable liquid crystal display and displaying method thereof
CN101009083A (zh) * 2006-01-26 2007-08-01 奇美电子股份有限公司 应用于显示器的显示方法及显示器
KR101206724B1 (ko) * 2006-02-23 2012-11-30 삼성디스플레이 주식회사 표시 장치
CN101089683B (zh) * 2006-06-14 2013-04-17 奇美电子股份有限公司 显示器及其显示方法
CN101535883B (zh) * 2006-11-09 2011-08-10 夏普株式会社 液晶显示装置
TWI356374B (en) * 2006-11-21 2012-01-11 Chimei Innolux Corp Liquid crystal display
KR20080051817A (ko) * 2006-12-07 2008-06-11 삼성전자주식회사 액정 표시 장치 및 그의 감마 곡선 생성 방법
CN100472291C (zh) * 2007-03-16 2009-03-25 友达光电股份有限公司 液晶显示器
CN101630487B (zh) * 2008-07-17 2013-10-23 群创光电股份有限公司 液晶显示器与驱动方法
KR101251143B1 (ko) * 2008-12-26 2013-04-05 샤프 가부시키가이샤 액정 표시 장치
CN101800035A (zh) * 2009-02-05 2010-08-11 瀚宇彩晶股份有限公司 液晶显示装置及其驱动方法
US8797305B2 (en) * 2009-05-29 2014-08-05 Sharp Kabushiki Kaisha Display device and method for driving same
CN101840689B (zh) * 2010-05-14 2013-06-05 中兴通讯股份有限公司 校正LCD屏gamma值的方法和装置
TWI494674B (zh) * 2011-04-22 2015-08-01 Chimei Innolux Corp 顯示面板
TWI459359B (zh) * 2011-07-27 2014-11-01 Chunghwa Picture Tubes Ltd 用以補償色序法色偏移的電路及其方法
TWI493519B (zh) * 2012-03-09 2015-07-21 Au Optronics Corp 畫素電路
CN103106884B (zh) * 2013-02-05 2015-11-25 深圳市华星光电技术有限公司 一种改善液晶屏的视角肤色色偏的方法及系统
TWI505256B (zh) * 2013-08-06 2015-10-21 Au Optronics Corp 畫素驅動方法

Also Published As

Publication number Publication date
CN104299592A (zh) 2015-01-21
DE112014007142T5 (de) 2017-07-27
JP6609802B2 (ja) 2019-11-27
KR101980026B1 (ko) 2019-09-03
GB201705879D0 (en) 2017-05-24
WO2016070448A1 (zh) 2016-05-12
US20160335944A1 (en) 2016-11-17
JP2017538149A (ja) 2017-12-21
KR20170076752A (ko) 2017-07-04
RU2660628C1 (ru) 2018-07-06
GB2545849A (en) 2017-06-28
GB2545849B (en) 2020-08-12

Similar Documents

Publication Publication Date Title
CN104299592B (zh) 液晶面板及其驱动方法
CN104835468B (zh) 液晶面板及其驱动方法
CN104900203B (zh) 液晶面板及其驱动方法
CN104317084B (zh) 液晶面板及其驱动方法
US10446095B2 (en) Image processing method of display device, image processing structure, and display device
US10643550B2 (en) Liquid crystal display device
CN104900205B (zh) 液晶面板及其驱动方法
CN104485077B (zh) 一种液晶显示面板及其驱动方法
CN104361870B (zh) 液晶面板及其像素单元设定方法
US11232760B2 (en) Liquid crystal display panel alleviating color shift problem due to large viewing angle
CN106157869A (zh) 一种显示图像的色偏修正方法、修正装置及显示装置
CN106504717A (zh) 一种显示装置的驱动方法及显示装置
CN105632424A (zh) 一种扩展显示灰阶数的色彩增强算法及控制装置
CN104280960B (zh) 液晶面板及其驱动方法、液晶显示器
US10818251B2 (en) Display device and method and device of driving the display device
CN105445966A (zh) 低色偏的显示面板
CN103941441A (zh) 液晶显示装置及其驱动方法

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20161123