WO2016106811A1 - 一种液晶显示面板的驱动方法 - Google Patents

一种液晶显示面板的驱动方法 Download PDF

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Publication number
WO2016106811A1
WO2016106811A1 PCT/CN2015/070414 CN2015070414W WO2016106811A1 WO 2016106811 A1 WO2016106811 A1 WO 2016106811A1 CN 2015070414 W CN2015070414 W CN 2015070414W WO 2016106811 A1 WO2016106811 A1 WO 2016106811A1
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Prior art keywords
area
displayed
display
gray
gray levels
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English (en)
French (fr)
Inventor
朱江
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to US14/433,672 priority Critical patent/US20170229075A1/en
Publication of WO2016106811A1 publication Critical patent/WO2016106811A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • G09G3/34Control 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
    • G09G3/34Control 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
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1323Arrangements for providing a switchable viewing angle
    • 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
    • G09G2320/0233Improving the luminance or brightness uniformity across the screen
    • 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
    • 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
    • G09G2320/068Adjustment of display parameters for control of viewing angle adjustment
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2358/00Arrangements for display data security

Definitions

  • the present invention relates to the field of display, and in particular to a driving method of a liquid crystal display panel.
  • the embodiment of the invention provides a driving method for a liquid crystal display panel, so that the liquid crystal display panel has an anti-peeping effect to effectively protect the privacy of the user.
  • a technical solution adopted by the embodiment of the present invention is to provide a driving method for a liquid crystal display panel, including: defining a first area and a second area on the liquid crystal display panel, and the first area and the first area The two regions are arranged to be staggered with each other; at least two first display gray levels are respectively generated according to each of the first gray levels to be displayed corresponding to the first region, and are respectively generated according to each second gray level to be displayed corresponding to the second region At least two second display gray scales, wherein at least a portion of the first display gray scales of the at least two first display gray scales are set to be not equal to the first gray scale to be displayed, and at least two second display gray scales are set And equal to the second gray scale to be displayed; driving at least two first pixels in the first region to display by using at least two first display gray scales, and respectively driving the second region by using at least two second display gray scales Displaying at least two second pixels, wherein a correspondence between an average value of actual display
  • the method further comprises: adjusting the sizes of the first area and the second area according to the control instruction.
  • the step of grayscale further includes: setting different at least two first display grayscales for the same first to-be-displayed grayscale according to different control instructions.
  • a driving method for a liquid crystal display panel including: defining a first area and a second area on the liquid crystal display panel; Each of the first gray levels to be displayed generates at least two first display gray levels, and generates at least two second display gray levels according to each second gray level to be displayed corresponding to the second area;
  • the first display gray scale respectively drives at least two first pixels in the first region for display, and drives at least two second pixels in the second region to display by using at least two second display gray scales, wherein
  • the angle between the average display brightness of the at least two first pixels and the first gray scale to be displayed, and the average of the actual display brightness of the at least two second pixels and the second gray scale to be displayed The correspondence between the two points satisfies the same positive viewing angle gamma curve, and the average value of the actual display brightness of at least two first pixels and the first gray scale to be displayed when viewed obliquely
  • the step of defining the first region and the second region on the liquid crystal display panel comprises: arranging the first region and the second region to be staggered with each other.
  • the method further comprises: adjusting the sizes of the first area and the second area according to the control instruction.
  • the step of grayscale includes: setting at least part of the first display grayscale of the at least two first display grayscales to be not equal to the first grayscale to be displayed, and setting the at least two second display grayscales to be equal to the second Gray scale to be displayed.
  • the step of grayscale further includes: setting different at least two first display grayscales for the same first to-be-displayed grayscale according to different control instructions.
  • another technical solution adopted by the embodiment of the present invention is to provide a driving method for a liquid crystal display panel, including: defining a first area and a second area on the liquid crystal display panel; Each of the first gray levels to be displayed generates two first display gray levels, and two second display gray levels are respectively generated according to each second gray level to be displayed corresponding to the second area, wherein the two first displays One of the gray scales is larger than the first gray scale to be displayed, and the other of the two first display gray scales is smaller than the first gray scale to be displayed, and the two second display gray scales are equal to the second gray scale to be displayed;
  • the two first display gray scales respectively drive at least two first pixels in the first region for display, and drive at least two second pixels in the second region to display by using at least two second display gray scales.
  • the step of defining the first region and the second region on the liquid crystal display panel comprises: arranging the first region and the second region to be staggered with each other.
  • the method further comprises: adjusting the sizes of the first region and the second region according to the control instruction.
  • the step includes: setting different at least two first display gray levels for the same first to-be-displayed gray scale according to different control instructions.
  • the first gray level to be displayed corresponds to the brightness on the positive viewing angle gamma curve.
  • the driving method of the liquid crystal display panel of the embodiment of the present invention generates a first region and a second region on the liquid crystal display panel, and generates at least two different colors according to the gray scales to be displayed corresponding to the two regions. Displaying gray scales to drive pixels in two regions for display, so that the relationship between the average value of the actual display brightness of the pixels and the corresponding gray scale to be displayed satisfies the same positive-angle gamma curve when viewed from a positive viewing angle.
  • the relationship between the average value of the actual display brightness of the pixel and the corresponding gray scale to be displayed satisfies different oblique angle gamma curves, that is, the display screen is in a disordered state, so that the liquid crystal display panel has an anti-peep effect.
  • FIG. 1 is a flow chart showing an embodiment of a driving method of a liquid crystal display panel of the present invention
  • FIG. 2 is a schematic view showing a region division of an embodiment of a liquid crystal display panel of the present invention
  • FIG. 3 is a schematic diagram of a pixel structure of the first area and the second area shown in FIG. 2;
  • FIG. 4 is a schematic diagram of a positive viewing angle gamma curve according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a oblique angle gamma curve corresponding to the second region shown in FIG. 2;
  • FIG. 6 is a schematic diagram of a oblique angle gamma curve corresponding to the first region shown in FIG. 2.
  • FIG. 1 is a flow chart showing an embodiment of a driving method of a liquid crystal display panel of the present invention. As shown in FIG. 1, the driving method of the liquid crystal display panel of this embodiment includes:
  • Step S11 defining a first area and a second area on the liquid crystal display panel.
  • FIG. 2 is a schematic view showing the division of an area of an embodiment of the liquid crystal display panel of the present invention. As shown in FIG. 2, two types of display areas, that is, a first area D1 and a second area D2 are defined on the liquid crystal display panel 20 having an adjustable viewing angle function.
  • FIG. 3 is a schematic diagram of a pixel structure of the first region and the second region shown in FIG. 2.
  • each of the first regions D1 includes at least two first pixels 21, and each of the second regions D2 includes at least two second pixels 22, and the first pixel 21 and the second pixel 22 have the same structure.
  • Step S12 generate at least two first display gray levels according to each of the first to-be-displayed gray levels corresponding to the first area, and generate at least two second according to each second to-be-displayed gray level corresponding to the second area. Show grayscale.
  • different at least two first display gray levels may be set for the same first to-be-displayed gray scale according to different control instructions.
  • the first gray level to be displayed is the gray level displayed by the plurality of first pixels 21 in the first area D1 of the liquid crystal display panel 20, and the second gray level to be displayed is required by the liquid crystal display panel 20 in the second area D2.
  • At least part of the first display gray scales of the at least two first display gray scales may be set to be not equal to the first gray scale to be displayed, and the at least two second display gray scales are set equal to the first Second, the gray scale is to be displayed.
  • one of the generated two first display gray levels may be larger than the first gray scale to be displayed, and the other one is smaller than the first gray to be displayed. Steps, and the two second display gray levels are equal to the second gray scale to be displayed.
  • the generated at least two second display gray levels may not be set equal to the second gray scale to be displayed.
  • at least part of the at least two second display gray levels may be greater than the second gray scale to be displayed, and remaining The portion is smaller than the second gray scale to be displayed, that is, the second region D2 may split the second gray scale to be displayed as the first region D1.
  • Step S13 driving at least two first pixels in the first area to display by using at least two first display gray levels, and driving at least two second parts in the second area by using at least two second display gray levels respectively The pixels are displayed.
  • At least two first pixels 21 in the first region D1 and at least two second pixels 22 in the second region D2 are driven to be displayed, thereby constituting a display screen of the liquid crystal display panel 20.
  • the correspondence between the average value of the actual display brightness of the at least two first pixels 21 and the first gray scale to be displayed satisfies the gamma curve shown in FIG. 5, and the average value of the actual display brightness of the at least two second pixels 22
  • the correspondence relationship with the second gray scale to be displayed also satisfies the positive viewing angle gamma curve shown in FIG. 4, wherein the ordinate axis of the ordinate axis of the plane rectangular coordinate system represents the average value of the actual display brightness, and the abscissa axis x axis Indicates the gray scale to be displayed.
  • the liquid crystal display panel 20 needs to display a screen with a grayscale of 128, that is, the first gray scale to be displayed and the second gray scale to be displayed are 128, and the first display gray scale corresponding to the first pixel 21 in the first region D1. Not all 128, some may be 250, some may be 50, but in the first area D1, the average value of the actual display brightness of at least two first pixels 21 is the same as that of the gray level of 128, That is, when viewed in a positive viewing angle, the actual display brightness of the first area D1 and the second area D2 is the same.
  • At least two second pixels 22 in the second area D2 do not alternately display light and dark, and at least two second pixels 22
  • the correspondence between the average value of the actual display brightness and the second gray scale to be displayed satisfies the oblique angle gamma curve shown in FIG. 5;
  • At least one of the first display gray scales is greater than the first gray scale to be displayed, and the other is smaller than the first gray scale to be displayed, at least two first pixels 21 in the first region D1 are alternately displayed in light and dark,
  • the correspondence between the average value of the actual display brightness of the at least two first pixels 21 and the first gray scale to be displayed satisfies the oblique angle gamma curve shown in FIG. 6, apparently the oblique angle gamma curve shown in FIG. different.
  • two first regions D1 and two second regions D2 which are staggered in a dotted line region are taken as an example, wherein R1 and R4 disposed diagonally are the first region D1, R2 and R3 of the corner are the second area D2.
  • R2 and R3 are not alternately displayed in bright and dark when viewed obliquely, and R1 and R4 are alternately displayed in light and dark to make the first area.
  • the display screen of D1 is in a disordered state, so that the liquid crystal display panel 20 has an anti-peep effect, and effectively protects the user's personal privacy.
  • the present embodiment may also be applicable to the case where the generated at least two second display gray levels are not equal to the second gray scale to be displayed according to the gray scale setting of the first area D1, so that when viewed obliquely R2 and R3 are also alternately displayed in light and dark, that is, the display screen of the second area D2 is also in a disordered state, thereby further improving the anti-peeping effect.
  • the embodiment of the present invention is not limited to setting the first area D1 and the second area D2 to be staggered with each other as shown in FIG. 2, and the sizes of the first area D1 and the second area D2 may be performed according to a user's control instruction. Adjustment, size can also be different.

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

Abstract

一种液晶显示面板的驱动方法,包括:在液晶显示面板(20)上定义出第一区域(D1)和第二区域(D2);根据两个区域对应的待显示灰阶分别生成不同的至少两个显示灰阶,并驱动两个区域内的像素进行显示,使得在正视角观察时,像素的实际显示亮度的平均值与对应的待显示灰阶之间的关系满足同一正视角伽马曲线,在斜视角观察时,像素的实际显示亮度的平均值与对应的待显示灰阶之间的关系满足不同的斜视角伽马曲线,从而使得液晶显示面板(20)具有防窥视效果。

Description

一种液晶显示面板的驱动方法
【技术领域】
本发明涉及显示领域,具体涉及一种液晶显示面板的驱动方法。
【背景技术】
当前,随着各种便携式液晶显示终端的日益普及,公共场合随处可见人们使用这些液晶显示终端。然而,有时候在公共场合通过这些液晶显示终端查看或处理一些具有个人隐私的文件或应用程序时,极易被周围的人有意无意的看到,从而导致个人隐私被泄露。
【发明内容】
有鉴于此,本发明实施例提供一种液晶显示面板的驱动方法,使得液晶显示面板具有防窥视效果,以有效保护使用者的个人隐私。
为解决上述技术问题,本发明实施例采用的一个技术方案是:提供一种液晶显示面板的驱动方法,包括:在液晶显示面板上定义出第一区域和第二区域,将第一区域和第二区域设置成彼此交错排列;根据第一区域对应的每一第一待显示灰阶分别生成至少两个第一显示灰阶,并根据第二区域对应的每一第二待显示灰阶分别生成至少两个第二显示灰阶,其中将至少两个第一显示灰阶中的至少部分第一显示灰阶设置成不等于第一待显示灰阶,并将至少两个第二显示灰阶设置成等于第二待显示灰阶;利用至少两个第一显示灰阶分别驱动第一区域内的至少两个第一像素进行显示,并利用至少两个第二显示灰阶分别驱动第二区域内的至少两个第二像素进行显示,其中在正视角观察时,至少两个第一像素的实际显示亮度的平均值与第一待显示灰阶之间的对应关系以及至少两个第二像素的实际显示亮度的平均值与第二待显示灰阶之间的对应关系满足同一正视角伽马曲线,在斜视角观察时,至少两个第一像素的实际显示亮度的平均值与第一待显示灰阶之间的对应关系以及至少两个第二像素的实际显示亮度的平均值与第二待显示灰阶之间的对应关系分别满足不同的斜视角伽马曲线。
其中,在液晶显示面板上定义出第一区域和第二区域的步骤之前,进一步包括:根据控制指令调节第一区域和第二区域的尺寸。
其中,根据第一区域对应的每一第一待显示灰阶分别生成至少两个第一显示灰阶,并根据第二区域对应的每一第二待显示灰阶分别生成至少两个第二显示灰阶的步骤进一步包括:根据不同的控制指令针对同一第一待显示灰阶设置不同的至少两个第一显示灰阶。
为解决上述技术问题,本发明实施例采用的另一个技术方案是:提供一种液晶显示面板的驱动方法,包括:在液晶显示面板上定义出第一区域和第二区域;根据第一区域对应的每一第一待显示灰阶分别生成至少两个第一显示灰阶,并根据第二区域对应的每一第二待显示灰阶分别生成至少两个第二显示灰阶;利用至少两个第一显示灰阶分别驱动第一区域内的至少两个第一像素进行显示,并利用至少两个第二显示灰阶分别驱动第二区域内的至少两个第二像素进行显示,其中在正视角观察时,至少两个第一像素的实际显示亮度的平均值与第一待显示灰阶之间的对应关系以及至少两个第二像素的实际显示亮度的平均值与第二待显示灰阶之间的对应关系满足同一正视角伽马曲线,在斜视角观察时,至少两个第一像素的实际显示亮度的平均值与第一待显示灰阶之间的对应关系以及至少两个第二像素的实际显示亮度的平均值与第二待显示灰阶之间的对应关系分别满足不同的斜视角伽马曲线。
其中,在液晶显示面板上定义出第一区域和第二区域的步骤包括:将第一区域和第二区域设置成彼此交错排列。
其中,在液晶显示面板上定义出第一区域和第二区域的步骤之前,进一步包括:根据控制指令调节第一区域和第二区域的尺寸。
其中,根据第一区域对应的每一第一待显示灰阶分别生成至少两个第一显示灰阶,并根据第二区域对应的每一第二待显示灰阶分别生成至少两个第二显示灰阶的步骤包括:将至少两个第一显示灰阶中的至少部分第一显示灰阶设置成不等于第一待显示灰阶,并将至少两个第二显示灰阶设置成等于第二待显示灰阶。
其中,根据第一区域对应的每一第一待显示灰阶分别生成至少两个第一显示灰阶,并根据第二区域对应的每一第二待显示灰阶分别生成至少两个第二显示灰阶的步骤进一步包括:根据不同的控制指令针对同一第一待显示灰阶设置不同的至少两个第一显示灰阶。
为解决上述技术问题,本发明实施例采用的又一个技术方案是:提供一种液晶显示面板的驱动方法,包括:在液晶显示面板上定义出第一区域和第二区域;根据第一区域对应的每一第一待显示灰阶分别生成两个第一显示灰阶,并根据第二区域对应的每一第二待显示灰阶分别生成两个第二显示灰阶,其中两个第一显示灰阶中的一个大于第一待显示灰阶,且两个第一显示灰阶中的另一个小于第一待显示灰阶,两个第二显示灰阶等于第二待显示灰阶;利用至少两个第一显示灰阶分别驱动第一区域内的至少两个第一像素进行显示,并利用至少两个第二显示灰阶分别驱动第二区域内的至少两个第二像素进行显示。
其中,在液晶显示面板上定义出第一区域和第二区域的步骤包括:将第一区域和第二区域设置成彼此交错排列。
其中,在液晶显示面板上定义出第一区域和第二区域步骤之前,进一步包括:根据控制指令调节第一区域和第二区域的尺寸。
其中,根据第一区域对应的每一第一待显示灰阶分别生成两个第一显示灰阶,并根据第二区域对应的每一第二待显示灰阶分别生成两个第二显示灰阶的步骤包括:根据不同的控制指令针对同一第一待显示灰阶设置不同的至少两个第一显示灰阶。
其中,根据第一区域对应的每一第一待显示灰阶分别生成两个第一显示灰阶,并根据第二区域对应的每一第二待显示灰阶分别生成两个第二显示灰阶的步骤包括:根据正视角伽马曲线由第一待显示灰阶分别生成两个第一显示灰阶,以使得两个第一显示灰阶在正视角伽马曲线上对应的亮度的平均值等于第一待显示灰阶在正视角伽马曲线上对应的亮度。
基于上述方案,本发明实施例的液晶显示面板的驱动方法,通过在液晶显示面板上定义出第一区域和第二区域,并根据两个区域对应的待显示灰阶分别生成不同的至少两个显示灰阶,以驱动两个区域内的像素进行显示,从而使得在正视角观察时,像素的实际显示亮度的平均值与对应的待显示灰阶之间的关系满足同一正视角伽马曲线,在斜视角观察时,像素的实际显示亮度的平均值与对应的待显示灰阶之间的关系满足不同的斜视角伽马曲线,即显示画面呈现紊乱的状态,使得液晶显示面板具有防窥视效果,有效保护使用者的个人隐私。
【附图说明】
图1是本发明液晶显示面板的驱动方法一实施例的流程图;
图2是本发明液晶显示面板一实施例区域划分示意图;
图3是图2所示第一区域和第二区域的像素结构示意图;
图4是本发明实施例的正视角伽马曲线的示意图;
图5是图2所示第二区域对应的斜视角伽马曲线的示意图;
图6是图2所示第一区域对应的斜视角伽马曲线的示意图。
【具体实施方式】
下面将结合本发明实施方式中的附图,对本发明实施方式中的技术方案进行清楚、完整地描述,显然,所描述的实施方式仅仅是本发明一区域分实施方式,而不是全区域实施方式。基于本发明中的实施方式,本领域普通技术人员在没有做出创造性的劳动前提下所获得的所有其他实施方式,都属于本发明保护的范围。
图1是本发明液晶显示面板的驱动方法一实施例的流程图。如图1所示,本实施例的液晶显示面板的驱动方法包括:
步骤S11:在液晶显示面板上定义出第一区域和第二区域。
图2是本发明液晶显示面板一实施例区域划分示意图。如图2所示,在具有可调整视角功能的液晶显示面板20上定义出两种类型的显示区域,即第一区域D1和第二区域D2。
图3是图2所示第一区域和第二区域的像素结构示意图。如图3所示,每一第一区域D1包括至少两个第一像素21,每一第二区域D2包括至少两个第二像素22,第一像素21和第二像素22的结构相同。
步骤S12:根据第一区域对应的每一第一待显示灰阶分别生成至少两个第一显示灰阶,并根据第二区域对应的每一第二待显示灰阶分别生成至少两个第二显示灰阶。
具体实现时,可以根据不同的控制指令,从而针对同一第一待显示灰阶设置不同的至少两个第一显示灰阶。
其中,第一待显示灰阶为液晶显示面板20在第一区域D1需要多个第一像素21显示的灰阶,第二待显示灰阶为液晶显示面板20在第二区域D2需要多个第二像素22显示的灰阶。
在本实施例中,可以将至少两个第一显示灰阶中的至少部分第一显示灰阶设置成不等于第一待显示灰阶,并将至少两个第二显示灰阶设置成等于第二待显示灰阶。
以生成两个第一显示灰阶和两个个第二显示灰阶为例,生成的两个第一显示灰阶中的一个可以大于第一待显示灰阶,另一个小于第一待显示灰阶,而两个第二显示灰阶等于第二待显示灰阶。
当然,生成的至少两个第二显示灰阶也可以不设置成等于第二待显示灰阶,例如,至少两个第二显示灰阶中的至少部分可以大于第二待显示灰阶,而剩余部分小于第二待显示灰阶,即,第二区域D2可以与第一区域D1一样将第二待显示灰阶进行拆分。
步骤S13:利用至少两个第一显示灰阶分别驱动第一区域内的至少两个第一像素进行显示,并利用至少两个第二显示灰阶分别驱动第二区域内的至少两个第二像素进行显示。
驱动第一区域D1内的至少两个第一像素21和第二区域D2内的至少两个第二像素22显示,从而构成液晶显示面板20的显示画面。
在正视角观察时,
至少两个第一像素21的实际显示亮度的平均值与第一待显示灰阶之间的对应关系满足图5所示的伽马曲线,至少两个第二像素22的实际显示亮度的平均值与第二待显示灰阶之间的对应关系也满足图4所示的正视角伽马曲线,其中,平面直角坐标系的纵坐标轴y轴表示实际显示亮度的平均值,横坐标轴x轴表示待显示灰阶。
例如,液晶显示面板20需要显示一个灰阶为128的画面,即第一待显示灰阶和第二待显示灰阶为128,第一区域D1内的第一像素21对应的第一显示灰阶并不都是128,有些可以为250,有些可以为50,但是在第一区域D1内,至少两个第一像素21的实际显示亮度的平均值与灰阶为128时的画面效果一样,也就是在正视角观察时,第一区域D1和第二区域D2的实际显示亮度是相同的。
在斜视角观察时,
至少两个第一像素21的实际显示亮度的平均值与第一待显示灰阶之间的对应关系,以及至少两个第二像素22的实际显示亮度的平均值与第二待显示灰阶之间的对应关系,分别满足不同的斜视角伽马曲线。
例如,对于生成的至少两个第二显示灰阶等于第二待显示灰阶,第二区域D2内的至少两个第二像素22并不会发生亮暗交替显示,至少两个第二像素22的实际显示亮度的平均值与第二待显示灰阶之间的对应关系满足图5所示的斜视角伽马曲线;
对于生成的至少两个第一显示灰阶中的一个大于第一待显示灰阶,另一个小于第一待显示灰阶,第一区域D1内的至少两个第一像素21亮暗交替显示,至少两个第一像素21的实际显示亮度的平均值与第一待显示灰阶之间的对应关系满足图6所示的斜视角伽马曲线,显然与图5所示的斜视角伽马曲线不同。
进一步结合图2和图3所示,以位于虚线区域的彼此交错排列的两个第一区域D1和两个第二区域D2为例,其中对角设置的R1、R4为第一区域D1,对角设置的R2、R3为第二区域D2,本发明实施例即是在斜视角观察时,将R2、R3不进行亮暗交替显示,而将R1、R4进行亮暗交替显示,使得第一区域D1的显示画面呈现紊乱的状态,从而使得液晶显示面板20具有防窥视效果,有效保护使用者的个人隐私。
当然,应该理解到,本实施例也可以根据第一区域D1的灰阶设置,适用于生成的至少两个第二显示灰阶不等于第二待显示灰阶的情况,从而在斜视角观察时R2、R3也进行亮暗交替显示,即第二区域D2的显示画面也呈现紊乱的状态,进一步提高防窥视效果。
另外,本发明实施例并不限于将第一区域D1和第二区域D2设置成如图2所示的彼此交错排列,并且第一区域D1和第二区域D2的尺寸可以根据用户的控制指令进行调节,尺寸可以也可以不相同。
再次说明,以上所述仅为本发明的实施方式,并非因此限制本发明的专利范围,凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换,或直接或间接运用在其他相关的技术领域,均同理包括在本发明的专利保护范围内。

Claims (13)

  1. 一种液晶显示面板的驱动方法,其中,所述驱动方法包括:
    在所述液晶显示面板上定义出第一区域和第二区域,将所述第一区域和所述第二区域设置成彼此交错排列;
    根据所述第一区域对应的每一第一待显示灰阶分别生成至少两个第一显示灰阶,并根据所述第二区域对应的每一第二待显示灰阶分别生成至少两个第二显示灰阶,其中将所述至少两个第一显示灰阶中的至少部分第一显示灰阶设置成不等于所述第一待显示灰阶,并将所述至少两个第二显示灰阶设置成等于所述第二待显示灰阶;
    利用所述至少两个第一显示灰阶分别驱动所述第一区域内的至少两个第一像素进行显示,并利用至少两个第二显示灰阶分别驱动所述第二区域内的至少两个第二像素进行显示,
    其中在正视角观察时,所述至少两个第一像素的实际显示亮度的平均值与所述第一待显示灰阶之间的对应关系以及所述至少两个第二像素的实际显示亮度的平均值与所述第二待显示灰阶之间的对应关系满足同一正视角伽马曲线,在斜视角观察时,所述至少两个第一像素的实际显示亮度的平均值与所述第一待显示灰阶之间的对应关系以及所述至少两个第二像素的实际显示亮度的平均值与所述第二待显示灰阶之间的对应关系分别满足不同的斜视角伽马曲线。
  2. 根据权利要求1所述的驱动方法,其中,所述在所述液晶显示面板上定义出第一区域和第二区域的步骤之前,进一步包括:
    根据控制指令调节所述第一区域和所述第二区域的尺寸。
  3. 根据权利要求1所述的驱动方法,其中,所述根据所述第一区域对应的每一第一待显示灰阶分别生成至少两个第一显示灰阶,并根据所述第二区域对应的每一第二待显示灰阶分别生成至少两个第二显示灰阶的步骤进一步包括:
    根据不同的控制指令针对同一所述第一待显示灰阶设置不同的所述至少两个第一显示灰阶。
  4. 一种液晶显示面板的驱动方法,其中,所述驱动方法包括:
    在所述液晶显示面板上定义出第一区域和第二区域;
    根据所述第一区域对应的每一第一待显示灰阶分别生成至少两个第一显示灰阶,并根据所述第二区域对应的每一第二待显示灰阶分别生成至少两个第二显示灰阶;
    利用所述至少两个第一显示灰阶分别驱动所述第一区域内的至少两个第一像素进行显示,并利用至少两个第二显示灰阶分别驱动所述第二区域内的至少两个第二像素进行显示,
    其中在正视角观察时,所述至少两个第一像素的实际显示亮度的平均值与所述第一待显示灰阶之间的对应关系以及所述至少两个第二像素的实际显示亮度的平均值与所述第二待显示灰阶之间的对应关系满足同一正视角伽马曲线,在斜视角观察时,所述至少两个第一像素的实际显示亮度的平均值与所述第一待显示灰阶之间的对应关系以及所述至少两个第二像素的实际显示亮度的平均值与所述第二待显示灰阶之间的对应关系分别满足不同的斜视角伽马曲线。
  5. 根据权利要求4所述的驱动方法,其中,所述在所述液晶显示面板上定义出第一区域和第二区域的步骤包括:
    将所述第一区域和所述第二区域设置成彼此交错排列。
  6. 根据权利要求5所述的驱动方法,其中,所述在所述液晶显示面板上定义出第一区域和第二区域的步骤之前,进一步包括:
    根据控制指令调节所述第一区域和所述第二区域的尺寸。
  7. 根据权利要求4所述的驱动方法,其中,所述根据所述第一区域对应的每一第一待显示灰阶分别生成至少两个第一显示灰阶,并根据所述第二区域对应的每一第二待显示灰阶分别生成至少两个第二显示灰阶的步骤包括:
    将所述至少两个第一显示灰阶中的至少部分第一显示灰阶设置成不等于所述第一待显示灰阶,并将所述至少两个第二显示灰阶设置成等于所述第二待显示灰阶。
  8. 根据权利要求7所述的驱动方法,其中,所述根据所述第一区域对应的每一第一待显示灰阶分别生成至少两个第一显示灰阶,并根据所述第二区域对应的每一第二待显示灰阶分别生成至少两个第二显示灰阶的步骤进一步包括:
    根据不同的控制指令针对同一所述第一待显示灰阶设置不同的所述至少两个第一显示灰阶。
  9. 一种液晶显示面板的驱动方法,其中,所述驱动方法包括:
    在所述液晶显示面板上定义出第一区域和第二区域;
    根据所述第一区域对应的每一第一待显示灰阶分别生成两个第一显示灰阶,并根据所述第二区域对应的每一第二待显示灰阶分别生成两个第二显示灰阶,其中所述两个第一显示灰阶中的一个大于所述第一待显示灰阶,且所述两个第一显示灰阶中的另一个小于所述第一待显示灰阶,所述两个第二显示灰阶等于所述第二待显示灰阶;
    利用所述至少两个第一显示灰阶分别驱动所述第一区域内的至少两个第一像素进行显示,并利用至少两个第二显示灰阶分别驱动所述第二区域内的至少两个第二像素进行显示。
  10. 根据权利要求9所述的驱动方法,其中,所述在所述液晶显示面板上定义出第一区域和第二区域的步骤包括:
    将所述第一区域和所述第二区域设置成彼此交错排列。
  11. 根据权利要求10所述的驱动方法,其中,所述在所述液晶显示面板上定义出第一区域和第二区域步骤之前,进一步包括:
    根据控制指令调节所述第一区域和所述第二区域的尺寸。
  12. 根据权利要求9所述的驱动方法,其中,所述根据所述第一区域对应的每一第一待显示灰阶分别生成两个第一显示灰阶,并根据所述第二区域对应的每一第二待显示灰阶分别生成两个第二显示灰阶的步骤包括:
    根据不同的控制指令针对同一所述第一待显示灰阶设置不同的所述至少两个第一显示灰阶。
  13. 根据权利要求9所述的驱动方法,其中,所述根据所述第一区域对应的每一第一待显示灰阶分别生成两个第一显示灰阶,并根据所述第二区域对应的每一第二待显示灰阶分别生成两个第二显示灰阶的步骤包括:
    根据正视角伽马曲线由所述第一待显示灰阶分别生成两个第一显示灰阶,以使得所述两个第一显示灰阶在所述正视角伽马曲线上对应的亮度的平均值等于所述第一待显示灰阶在所述正视角伽马曲线上对应的亮度。
PCT/CN2015/070414 2014-12-30 2015-01-09 一种液晶显示面板的驱动方法 Ceased WO2016106811A1 (zh)

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