WO2016019599A1 - 提高3d液晶显示器在3d显示时的亮度均匀性的方法及系统 - Google Patents
提高3d液晶显示器在3d显示时的亮度均匀性的方法及系统 Download PDFInfo
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
- G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
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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
- G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
- G09G3/003—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background to produce spatial visual effects
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
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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
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data
Definitions
- the present invention belongs to the field of three-dimensional (3D) display technology, and in particular, to a method and system for improving brightness uniformity of a 3D liquid crystal display in 3D display. Background technique
- Three Dimensions (3D) Stereoscopic TV 3D stereoscopic technology mainly includes polarized (ie active) and shutter (passive).
- shutter 3D stereo technology uses the left and right switches of the glasses and the left and right of the TV image. The frame sync alternates, allowing the eye to see different images that are quickly switched, resulting in a stereoscopic image in the brain.
- the shutter-type 3D LCD monitor can work in backlight scanning (Backlight Scanning) or backlighting (Backlight Blinking).
- liquid crystal molecules have a response speed
- the liquid crystal display panel of the shutter type 3D liquid crystal display refreshes the picture from top to bottom during operation, so the liquid crystal molecules in each area of the liquid crystal display panel are not simultaneously rotated.
- the liquid crystal display panel of the shutter type 3D liquid crystal display panel performs 3D display, for the entire liquid crystal display panel, both the glasses and the backlight are simultaneously opened, which causes the brightness of the entire liquid crystal display panel actually perceived by the eye to be uneven.
- an object of the present invention is to provide a method for improving brightness uniformity of a 3D liquid crystal display during 3D display, comprising the steps of: acquiring each area according to n regions of a preset liquid crystal display panel The transmittance, wherein n is a positive integer; the original brightness of each area is adjusted; and the brightness of the backlight corresponding to each area is calculated according to the transmittance of each area and the brightness of each area after adjustment.
- the specific method for obtaining the transmittance of each area includes: acquiring original brightness of each area; acquiring original brightness of the backlight corresponding to each area; according to original brightness of each area and each area pair The original brightness of the backlight is used to calculate the transmittance of each area.
- Brightness, Ym represents the original brightness of the backlight corresponding to the mth area
- Xm' represents the brightness of the adjusted mth area
- Xm represents the original brightness of the mth area
- Am represents the transmittance of the mth area
- Lmn, and m is a positive integer.
- Another object of the present invention is to provide a system for improving brightness uniformity of a 3D liquid crystal display during 3D display, comprising: a transmittance acquisition unit configured to acquire n regions according to a preset liquid crystal display panel The transmittance of each region, where n is a positive integer; the region brightness adjusting unit is configured to adjust the original brightness of each region; the backlight brightness calculating unit is configured to be based on the transmittance of each region and adjusted The brightness of each area is calculated, and the brightness of the backlight corresponding to each area is calculated.
- the transmittance acquisition unit is further configured to acquire original brightness of each area according to n regions of the preset liquid crystal display panel; obtain original brightness of the backlight corresponding to each area; and according to original brightness of each area and The original brightness of the backlight corresponding to each area is calculated, and the transmittance of each area is calculated. Further, the transmittance acquisition unit is further configured to calculate the transmittance of each region by dividing the original luminance of each region by the original luminance of the backlight corresponding to each region. Further, the brightness of each of the adjusted regions is the same, wherein the brightness of each of the adjusted regions is an average value of original brightness of each region.
- the method and system for improving brightness uniformity of a 3D liquid crystal display in 3D display by performing backlight compensation on each area of the liquid crystal display panel, improving brightness uniformity of the liquid crystal display panel in 3D display, thereby not causing eyes Actually, the brightness of the liquid crystal display panel is not uniform when displayed in 3D.
- FIG. 3 is a view showing an improvement of 3D according to an embodiment of the present invention.
- a 3D liquid crystal display generally includes a liquid crystal display panel and a backlight module disposed opposite to the liquid crystal display panel, wherein the backlight module provides backlight to the liquid crystal display panel to cause the liquid crystal display panel to display an image.
- the liquid crystal display panel generally includes a Thin Film Transistor (TFT) array substrate, a color filter (CF) substrate disposed opposite to the TFT array substrate, and a sandwich between the TFT array substrate and the CF substrate. a liquid crystal layer, wherein the liquid crystal layer includes a plurality of liquid crystal molecules.
- TFT Thin Film Transistor
- CF color filter
- the backlight module includes a light guide plate, a light source and other optical components, wherein the light source illuminates the light emitted by the light source into the light guide plate, and the light irradiated into the light guide plate is uniformly diffused in the light guide plate to form a surface light source, thereby providing the liquid crystal Display panel is used. Since the specific structure of the backlight module of this embodiment is substantially the same as that of the backlight module of the prior art, it will not be repeated here.
- 1 is a schematic view showing a region into which a liquid crystal display panel is divided according to an embodiment of the present invention. Referring to FIG.
- a liquid crystal display panel 10 according to an embodiment of the present invention can be divided into nine regions, namely, region 1, region 2, region 3, region 4, region 5, region 6, and region 7. , the area 8 and the area 9, but the area division of the liquid crystal display panel of the present invention is not limited to that shown in FIG.
- the liquid crystal display panel can be divided into any number of regions.
- 2 is a flow chart showing a method of improving brightness uniformity of a 3D liquid crystal display in 3D display according to an embodiment of the present invention.
- step 210 the transmittance of each region is obtained according to the nine regions of the preset liquid crystal display panel 10 shown in FIG.
- the specific method for obtaining the transmittance of each area includes: acquiring the original brightness of each area; obtaining the original brightness of the backlight corresponding to each area; and according to the original brightness of each area and the original brightness of the backlight corresponding to each area, The penetration rate of each region was calculated.
- the original brightness of each region of the liquid crystal display panel 10 can be acquired by the transmittance acquisition unit 310 (shown in FIG. 3), wherein the original brightness of the mth region is Xm, lm9.
- the original brightness of the backlight corresponding to each area is obtained by using the transmittance acquiring unit 310, wherein the original brightness of the backlight corresponding to the mth area is Y.
- the backlight corresponding to each area is provided by the backlight module.
- the backlight of the liquid crystal display panel 10 and because the backlight uniformity generated by the backlight module is good, the original brightness of the backlight corresponding to each area is Y. In other words, the original brightness of the backlight corresponding to each area is the same or equal.
- the transmittance of each region was calculated by the following formula 1.
- Am Xm / Y
- Am represents the transmittance of the mth region
- Xm represents the original luminance of the mth region
- Y represents the original luminance of the backlight corresponding to the mth region.
- the original brightness of each area is adjusted according to the nine areas of the preset liquid crystal display panel 10 shown in FIG.
- the original brightness of each area is adjusted to the same brightness, in other words, the brightness of each of the adjusted areas is the same.
- the brightness of each of the adjusted regions is calculated by Equation 2 below. Where Xm' represents the brightness of the adjusted mth area, and Xm represents the original brightness of the mth area.
- the brightness of each of the adjusted regions is the average of the original luminances of the respective regions. This is because if the original brightness of each area is adjusted to the maximum brightness of the original brightness of each area, the overall backlight brightness of the backlight module is increased, thereby causing the brightness of the liquid crystal display panel 10 in the dark state (ie, black image). Will improve, it is easy to cause black screen is not black. If the original brightness of each area is adjusted to the minimum brightness of the original brightness of each area, the overall backlight brightness of the backlight module is dark, thereby affecting the brightness specification of the liquid crystal display panel 10.
- the brightness of the backlight corresponding to each area is calculated based on the transmittance of each area and the brightness of each of the adjusted areas. In this step, the brightness of the backlight corresponding to each area is calculated by the following formula 3.
- Ym, Ym+(Xm,-Xm)/Am
- Ym' represents the calculated brightness of the backlight corresponding to the mth region
- Ym represents the original brightness of the backlight corresponding to the mth region
- Xm ' Expresss the brightness of the adjusted mth area
- Xm denotes the original brightness of the mth area
- Am denotes the transmittance of the mth area.
- the desired brightness is achieved by designing the density and size of the light guiding points in different regions of the light guide plate, for example, if the brightness of the backlight corresponding to the mth region is adjusted to be the backlight corresponding to the mth region. If the original brightness Ym is large, it is necessary to increase the density and size of the light guiding point of the area of the light guide plate corresponding to the mth area; if the adjusted brightness of the mth area corresponding to the mth area is smaller than the mth If the original luminance Ym of the backlight corresponding to the region is small, it is necessary to reduce the density and size of the light guiding point of the region of the light guide plate corresponding to the m-th region.
- a system for improving brightness uniformity of a 3D liquid crystal display in 3D display includes: a transmittance acquisition unit 310, an area brightness adjustment unit 320, and a backlight brightness calculation unit 330.
- the transmittance acquisition unit 310 is configured to acquire the transmittance of each region according to the nine regions of the preset liquid crystal display panel 10 illustrated in FIG. 1 .
- the transmittance acquisition unit 310 is further configured to acquire the original brightness of each area according to the preset nine regions of the liquid crystal display panel 10 shown in FIG. 1; obtain the original brightness of the backlight corresponding to each area; The original brightness and the original brightness of the backlight corresponding to each area are calculated, and the transmittance of each area is calculated.
- the transmittance acquisition unit 310 is further configured to acquire the original luminance of each region of the liquid crystal display panel 10, wherein the original luminance of the mth region is Xm, lm9.
- the transmittance acquisition unit 310 is further configured to acquire the original brightness of the backlight corresponding to each area, wherein the original brightness of the backlight corresponding to the mth area is Y.
- the backlight corresponding to each region is a backlight provided by the backlight module to the liquid crystal display panel 10, and since the backlight uniformity generated by the backlight module is good, the original brightness of the backlight corresponding to each region is ⁇ , in other words, each The original brightness of the backlight corresponding to the area is the same or equal.
- the penetration rate acquisition unit 310 is further configured to calculate the transmittance of each region using Equation 1 above.
- the area brightness adjusting unit 320 is configured to adjust the original brightness of each area according to the nine areas of the preset liquid crystal display panel 10 shown in FIG.
- the area brightness adjusting unit 320 adjusts the original brightness of each area to the same brightness, in other words, the brightness of each area adjusted by the area brightness adjusting unit 320 is the same.
- the area brightness adjustment unit 320 is further configured to calculate the brightness of each of the adjusted regions using Equation 2 above.
- the backlight luminance calculation unit 330 is configured to calculate the luminance of the backlight corresponding to each region based on the transmittance of each region and the brightness of each of the adjusted regions.
- the backlight luminance calculation unit 330 is further configured to calculate the luminance of the backlight corresponding to each region using the above formula 3.
- the backlight brightness calculation unit 330 determines the brightness of the backlight corresponding to each area, it can be realized by the design of the light guide plate in the backlight module.
- the desired brightness is achieved by designing the density and size of the light guiding points in different regions of the light guide plate, for example, if the brightness of the backlight corresponding to the mth region is adjusted to be corresponding to the backlight of the mth region.
- the original brightness Ym is large, it is necessary to increase the density and size of the light guiding point of the region of the light guide plate corresponding to the m-th region; if the adjusted brightness of the m-th region corresponding to the m-th region is greater than the mth If the original luminance Ym of the backlight corresponding to the region is small, it is necessary to reduce the density and size of the light guiding point of the region of the light guide plate corresponding to the m-th region. While the invention has been shown and described with respect to the specific embodiments of the embodiments of the invention Various changes in details.
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Abstract
一种提高3D液晶显示器在3D显示时的亮度均匀性的方法和系统,所述方法包括步骤:根据预设的液晶显示面板的n个区域,获取各区域的穿透率,其中,n为正整数;对各区域的原始亮度进行调整;根据各区域的穿透率及经调整后的各区域的亮度,计算出各区域对应的背光的亮度。通过对液晶显示面板的各区域进行背光补偿,提高液晶显示面板在3D显示时的亮度均匀性,从而不会造成眼睛实际感受到液晶显示面板在3D显示时亮度是不均匀的。
Description
说 明 书 提高 3D液晶显示器在 3D显示时的亮度均匀性的方法及系统 技术领域
本发明属于三维(Three Dimensions, 简称 3D)显示技术领域, 具体地讲, 涉及一种提高 3D液晶显示器在 3D显示时的亮度均匀性的方法及系统。 背景技术
三维 (Three Dimensions, 简称 3D ) 立体电视的 3D立体技术主要有偏光 式 (即主动式) 和快门式 (即被动式) 两种, 其中, 快门式 3D立体技术利用 眼镜的左右开关以及电视图像的左右帧同步交替, 使眼睛看到快速切换的不同 画面, 从而在大脑中产生立体影像。 在 3D显示模式下, 快门式 3D液晶显示器可采用背光扫描 (Backlight Scanning ) 的工作方式, 或者采用背光闪烁 (Backlight Blinking ) 的工作方式。 众所周知, 液晶分子是具有响应速度的, 而快门式 3D液晶显示器的液晶 显示面板在工作时是由上至下刷新画面的, 所以液晶显示面板上每个区域的液 晶分子并不是同时转动的。 在快门式 3D液晶显示器的液晶显示面板进行 3D 显示时, 对于整个液晶显示面板来讲, 眼镜和背光都是同时打开的, 这样就会 造成眼睛实际感受到的整个液晶显示面板的亮度是不均匀的。 发明内容
为了解决上述现有技术存在问题, 本发明的目的在于提供一种提高 3D液 晶显示器在 3D显示时的亮度均匀性的方法, 包括步骤: 根据预设的液晶显示 面板的 n个区域, 获取各区域的穿透率, 其中, n为正整数; 对各区域的原始 亮度进行调整; 根据各区域的穿透率及经调整后的各区域的亮度, 计算出各区 域对应的背光的亮度。 进一步地, 所述获取各区域的穿透率的具体方法包括: 获取各区域的原始 亮度; 获取各区域对应的背光的原始亮度; 根据各区域的原始亮度及各区域对
应的背光的原始亮度, 计算出各区域的穿透率。 进一步地, 所述各区域的穿透率的具体计算方法为: 各区域的原始亮度除 以各区域对应的背光的原始亮度。 进一步地, 所述经调整后的各区域的亮度相同, 其中, 所述经调整后的各 区域的亮度为各区域的原始亮度的平均值。 进一步地, 利用式子 3计算出各区域对应的背光的亮度, [式子 3] Ym,=Ym+(Xm,-Xm)/Am 其中, Ym' 表示计算出的第 m个区域对应的背光的亮度, Ym表示第 m 个区域对应的背光的原始亮度, Xm'表示经调整后的第 m个区域的亮度, Xm 表示第 m个区域的原始亮度, Am表示第 m个区域的穿透率, l m n, 且 m 为正整数。 本发明的另一目的还在于提供一种提高 3D液晶显示器在 3D显示时的亮 度均匀性的系统, 包括: 穿透率获取单元, 被构造为根据预设的液晶显示面板 的 n个区域, 获取各区域的穿透率, 其中, n为正整数; 区域亮度调整单元, 被构造为对各区域的原始亮度进行调整; 背光亮度计算单元, 被构造为根据各 区域的穿透率及经调整后的各区域的亮度, 计算出各区域对应的背光的亮度。 进一步地, 所述穿透率获取单元进一步被构造为根据预设的液晶显示面板 的 n个区域, 获取各区域的原始亮度; 获取各区域对应的背光的原始亮度; 根 据各区域的原始亮度及各区域对应的背光的原始亮度, 计算出各区域的穿透 率。 进一步地, 所述穿透率获取单元进一步被构造为利用各区域的原始亮度除 以各区域对应的背光的原始亮度, 以计算出各区域的穿透率。 进一步地, 所述经调整后的各区域的亮度相同, 其中, 所述经调整后的各 区域的亮度为各区域的原始亮度的平均值。 进一步地, 所述背光亮度计算单元进一步被构造为利用式子 3计算出各区 域对应的背光的亮度,
[式子 3] Ym,=Ym+(Xm,-Xm)/Am 其中, Ym' 表示计算出的第 m个区域对应的背光的亮度, Ym表示第 m 个区域对应的背光的原始亮度, Xm'表示经调整后的第 m个区域的亮度, Xm 表示第 m个区域的原始亮度, Am表示第 m个区域的穿透率, l m n, 且 m 为正整数。 本发明的提高 3D液晶显示器在 3D显示时的亮度均匀性的方法及系统, 通过对液晶显示面板的各区域进行背光补偿, 提高液晶显示面板在 3D显示时 的亮度均匀性, 从而不会造成眼睛实际感受到液晶显示面板在 3D显示时亮度 是不均匀的。 附图说明
通过结合附图进行的以下描述, 本发明的实施例的上述和其它方面、 特点 和优点将变得更加清楚, 附图中: 图 1是示出根据本发明的实施例的液晶显示面板被划分成的区域的示意 图; 图 2是示出根据本发明的实施例的提高 3D液晶显示器在 3D显示时的亮 度均匀性的方法的流程图; 图 3是示出根据本发明的实施例的提高 3D液晶显示器在 3D显示时的亮 度均匀性的系统的模块图。 具体实施方式
以下, 将参照附图来详细描述本发明的实施例。 然而, 可以以许多不同的 形式来实施本发明, 并且本发明不应该被解释为限制于这里阐述的具体实施 例。 相反, 提供这些实施例是为了解释本发明的原理及其实际应用, 从而使本 领域的其他技术人员能够理解本发明的各种实施例和适合于特定预期应用的 各种修改。 根据本发明的实施例的三维 (Three Dimensions, 简称 3D) 液晶显示器采 用背光闪烁 (Backlight Blinking) 的工作方式, 其可在二维 ( Two Dimensions,
简称 2D) 显示和 3D显示之间进行切换。 根据本发明的实施例的 3D液晶显示 器通常包括液晶显示面板及与液晶显示面板相对设置的背光模块, 其中, 背光 模块提供背光给液晶显示面板, 以使液晶显示面板显示影像。 液晶显示面板通常包括薄膜晶体管(Thin Film Transistor, 简称 TFT)阵列 基板、 与 TFT阵列基板相对设置的彩色滤光片 (Color Filter, 简称 CF) 基板 以及夹设于 TFT阵列基板与 CF基板之间的液晶层, 其中, 液晶层中包括若干 液晶分子。 由于本实施例的液晶显示面板的具体结构与现有技术的液晶显示面 板的结构大体相同, 所以在此不再赘述。 背光模块包括导光板、 光源以及其他 光学元件, 其中, 光源将其发射的光照射到导光板之中, 照射到导光板之中的 光在导光板中均匀扩散后形成面光源, 从而提供给液晶显示面板使用。 由于本 实施例的背光模块的具体结构与现有技术的背光模块的结构大体相同, 所以在 此也不再赘述。 图 1是示出根据本发明的实施例的液晶显示面板被划分成的区域的示意 图。 参照图 1,在本实施例中,根据本发明的实施例的液晶显示面板 10可被划 分成 9个区域, 即区域 1、 区域 2、 区域 3、 区域 4、 区域 5、 区域 6、 区域 7、 区域 8和区域 9, 但本发明对液晶显示面板的区域划分并不局限于图 1所示。 在本发明中, 可对液晶显示面板进行任意数量区域的划分。 图 2是示出根据本发明的实施例的提高 3D液晶显示器在 3D显示时的亮 度均匀性的方法的流程图。 在步骤 210中, 根据图 1所示的预设的液晶显示面板 10的 9个区域, 获 取各区域的穿透率。 在该步骤中, 获取各区域的穿透率的具体方法包括: 获取 各区域的原始亮度; 获取各区域对应的背光的原始亮度; 根据各区域的原始亮 度及各区域对应的背光的原始亮度, 计算出各区域的穿透率。 这里, 可利用穿透率获取单元 310 (图 3所示)获取液晶显示面板 10的各 区域的原始亮度, 其中, 第 m个区域的原始亮度为 Xm, l m 9。 然后, 利 用该穿透率获取单元 310获取各区域对应的背光的原始亮度,其中,第 m个区 域对应的背光的原始亮度为 Y。 这里, 各区域对应的背光是由背光模块提供给
液晶显示面板 10的背光, 并且由于该背光模块产生的背光均匀性良好, 因此 各区域对应的背光的原始亮度均为 Y, 换句话说, 各区域对应的背光的原始亮 度相同或相等。 利用下面的式子 1计算出各区域的穿透率。
[式子 1] Am=Xm/Y 其中, Am表示第 m个区域的穿透率, Xm表示第 m个区域的原始亮度, Y表示第 m个区域对应的背光的原始亮度。 在步骤 220中, 根据图 1所示的预设的液晶显示面板 10的 9个区域, 对 各区域的原始亮度进行调整。在步骤中,将各区域的原始亮度调整为同一亮度, 换句话说, 经调整后的各区域的亮度相同。 利用下面的式子 2计算出经调整后 的各区域的亮度。
其中, Xm'表示经调整后的第 m个区域的亮度, Xm表示第 m个区域的原 始亮度。 由式子 2可知, 经调整后的各区域的亮度为各区域的原始亮度的平均值。 这是因为如果将各区域的原始亮度都调整到各区域的原始亮度中的最大亮度, 导致背光模块的整体背光亮度会提高, 进而导致液晶显示面板 10在暗态 (即 黑画面) 下亮度也会提升, 容易造成黑画面不黑的现象。 如果将各区域的原始 亮度都调整到各区域的原始亮度中的最小亮度, 导致背光模块的整体背光亮度 偏暗, 进而影响液晶显示面板 10的亮度规格。 在步骤 230中, 根据各区域的穿透率及经调整后的各区域的亮度, 计算出 各区域对应的背光的亮度。 在该步骤中, 利用下面的式子 3计算出各区域对应 的背光的亮度。
[式子 3] Ym,=Ym+(Xm,-Xm)/Am, 其中, Ym' 表示计算出的第 m个区域对应的背光的亮度, Ym表示第 m 个区域对应的背光的原始亮度, Xm'表示经调整后的第 m个区域的亮度, Xm 表示第 m个区域的原始亮度, Am表示第 m个区域的穿透率。
在确定各区域对应的背光的亮度后, 实际中可以通过背光模块中的导光板 的设计来实现。通过设计导光板不同区域导光点的疏密程度和大小来实现所需 的不同亮度,例如,如果经调整后的第 m个区域对应的背光的亮度 Ym'比第 m 个区域对应的背光的原始亮度 Ym大,则需要增大导光板的与该第 m个区域对 应的区域的导光点的密度及大小;如果经调整后的第 m个区域对应的背光的亮 度 Ym'比第 m个区域对应的背光的原始亮度 Ym小, 则需要减小导光板的与 该第 m个区域对应的区域的导光点的密度及大小。 综上, 通过对液晶显示面板 10的各区域进行背光补偿, 提高液晶显示面 板 10在 3D显示时的亮度均匀性,从而不会造成眼睛实际感受到液晶显示面板 10在 3D显示时亮度是不均匀的。 图 3是示出根据本发明的实施例的提高 3D液晶显示器在 3D显示时的亮 度均匀性的系统的模块图。 参照图 3,根据本发明的实施例的提高 3D液晶显示器在 3D显示时的亮度 均匀性的系统包括: 穿透率获取单元 310、 区域亮度调整单元 320、 背光亮度 计算单元 330。 具体而言, 穿透率获取单元 310被配置为根据图 1所示的预设的液晶显示 面板 10的 9个区域, 获取各区域的穿透率。 这里, 穿透率获取单元 310进一 步被配置为根据图 1所示的预设的液晶显示面板 10的 9个区域, 获取各区域 的原始亮度; 获取各区域对应的背光的原始亮度; 根据各区域的原始亮度及各 区域对应的背光的原始亮度, 计算出各区域的穿透率。 这里, 穿透率获取单元 310进一步被配置为获取液晶显示面板 10的各区 域的原始亮度, 其中, 第 m个区域的原始亮度为 Xm, l m 9。 然后, 穿透 率获取单元 310进一步被配置为获取各区域对应的背光的原始亮度, 其中,第 m个区域对应的背光的原始亮度为 Y。 这里, 各区域对应的背光是由背光模块 提供给液晶显示面板 10的背光, 并且由于该背光模块产生的背光均匀性良好, 因此各区域对应的背光的原始亮度均为 Υ, 换句话说, 各区域对应的背光的原 始亮度相同或相等。穿透率获取单元 310进一步被配置为利用上面的式子 1计 算出各区域的穿透率。
区域亮度调整单元 320被配置为根据图 1所示的预设的液晶显示面板 10 的 9个区域, 对各区域的原始亮度进行调整。 这里, 区域亮度调整单元 320将 各区域的原始亮度调整为同一亮度, 换句话说, 经区域亮度调整单元 320调整 后的各区域的亮度相同。 区域亮度调整单元 320进一步被配置为利用上面的式 子 2计算出经调整后的各区域的亮度。 背光亮度计算单元 330被配置为根据各区域的穿透率及经调整后的各区域 的亮度, 计算出各区域对应的背光的亮度。 这里, 背光亮度计算单元 330进一 步被配置为利用上面的式子 3计算出各区域对应的背光的亮度。 在背光亮度计算单元 330确定各区域对应的背光的亮度后, 实际中可以通 过背光模块中的导光板的设计来实现。通过设计导光板不同区域导光点的疏密 程度和大小来实现所需的不同亮度,例如,如果经调整后的第 m个区域对应的 背光的亮度 Ym'比第 m个区域对应的背光的原始亮度 Ym大, 则需要增大导 光板的与该第 m个区域对应的区域的导光点的密度及大小;如果经调整后的第 m个区域对应的背光的亮度 Ym'比第 m个区域对应的背光的原始亮度 Ym小, 则需要减小导光板的与该第 m个区域对应的区域的导光点的密度及大小。 虽然已经参照特定实施例示出并描述了本发明, 但是本领域的技术人员将 理解: 在不脱离由权利要求及其等同物限定的本发明的精神和范围的情况下, 可在此进行形式和细节上的各种变化。
Claims
1、 一种提高 3D液晶显示器在 3D显示时的亮度均匀性的方法, 其中, 包 括步骤: 根据预设的液晶显示面板的 n个区域, 获取各区域的穿透率, 其中, n为 正整数; 对各区域的原始亮度进行调整; 根据各区域的穿透率及经调整后的各区域的亮度, 计算出各区域对应的背 光的亮度。
2、 根据权利要求 1所述的方法, 其中, 所述获取各区域的穿透率的具体 方法包括: 获取各区域的原始亮度; 获取各区域对应的背光的原始亮度; 根据各区域的原始亮度及各区域对应的背光的原始亮度, 计算出各区域的 穿透率。
3、 根据权利要求 2所述的方法, 其中, 所述各区域的穿透率的具体计算 方法为: 各区域的原始亮度除以各区域对应的背光的原始亮度。
4、 根据权利要求 1所述的方法, 其中, 所述经调整后的各区域的亮度相 同, 其中, 所述经调整后的各区域的亮度为各区域的原始亮度的平均值。
5、 根据权利要求 2所述的方法, 其中, 所述经调整后的各区域的亮度相 同, 其中, 所述经调整后的各区域的亮度为各区域的原始亮度的平均值。
6、 根据权利要求 3所述的方法, 其中, 所述经调整后的各区域的亮度相 同, 其中, 所述经调整后的各区域的亮度为各区域的原始亮度的平均值。
7、 根据权利要求 1所述的方法, 其中, 利用式子 3计算出各区域对应的
背光的亮度,
[式子 3] Ym,=Ym+(Xm,-Xm)/Am 其中, Ym' 表示计算出的第 m个区域对应的背光的亮度, Ym表示第 m 个区域对应的背光的原始亮度, Xm'表示经调整后的第 m个区域的亮度, Xm 表示第 m个区域的原始亮度, Am表示第 m个区域的穿透率, l m n, 且 m 为正整数。
8、 根据权利要求 2所述的方法, 其中, 利用式子 3计算出各区域对应的 背光的亮度,
[式子 3] Ym'=Ym+(Xm,-Xm)/Am 其中, Ym' 表示计算出的第 m个区域对应的背光的亮度, Ym表示第 m 个区域对应的背光的原始亮度, Xm,表示经调整后的第 m个区域的亮度, Xm 表示第 m个区域的原始亮度, Am表示第 m个区域的穿透率, l m n, 且 m 为正整数。
9、 根据权利要求 3所述的方法, 其中, 利用式子 3计算出各区域对应的 背光的亮度,
[式子 3] Ym'=Ym+(Xm,-Xm)/Am 其中, Ym' 表示计算出的第 m个区域对应的背光的亮度, Ym表示第 m 个区域对应的背光的原始亮度, Xm,表示经调整后的第 m个区域的亮度, Xm 表示第 m个区域的原始亮度, Am表示第 m个区域的穿透率, l m n, 且 m 为正整数。
10、 一种提高 3D液晶显示器在 3D显示时的亮度均匀性的系统, 其中, 包括: 穿透率获取单元, 被构造为根据预设的液晶显示面板的 n个区域, 获取各 区域的穿透率, 其中, n为正整数; 区域亮度调整单元, 被构造为对各区域的原始亮度进行调整;
背光亮度计算单元, 被构造为根据各区域的穿透率及经调整后的各区域的 亮度, 计算出各区域对应的背光的亮度。
11、 根据权利要求 10所述的系统, 其中, 所述穿透率获取单元进一步被 构造为根据预设的液晶显示面板的 n个区域, 获取各区域的原始亮度; 获取各 区域对应的背光的原始亮度; 根据各区域的原始亮度及各区域对应的背光的原 始亮度, 计算出各区域的穿透率。
12、 根据权利要求 11所述的系统, 其中, 所述穿透率获取单元进一步被 构造为利用各区域的原始亮度除以各区域对应的背光的原始亮度, 以计算出各 区域的穿透率。
13、 根据权利要求 10所述的系统, 其中, 所述经调整后的各区域的亮度 相同, 其中, 所述经调整后的各区域的亮度为各区域的原始亮度的平均值。
14、 根据权利要求 10所述的系统, 其中, 所述背光亮度计算单元进一步 被构造为利用式子 3计算出各区域对应的背光的亮度,
[式子 3] Ym,=Ym+(Xm,-Xm)/Am 其中, Ym' 表示计算出的第 m个区域对应的背光的亮度, Ym表示第 m 个区域对应的背光的原始亮度, Xm'表示经调整后的第 m个区域的亮度, Xm 表示第 m个区域的原始亮度, Am表示第 m个区域的穿透率, l m n, 且 m 为正整数。
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| CN101159121A (zh) * | 2007-11-20 | 2008-04-09 | 京东方科技集团股份有限公司 | 背光源控制系统及方法 |
| WO2008096469A1 (ja) * | 2007-02-07 | 2008-08-14 | Sharp Kabushiki Kaisha | 表示装置 |
| JP2010204161A (ja) * | 2009-02-27 | 2010-09-16 | Panasonic Corp | 液晶表示装置及び携帯端末装置 |
| CN101950543A (zh) * | 2010-09-08 | 2011-01-19 | 青岛海信电器股份有限公司 | 动态背光调整方法及装置 |
| US20110096105A1 (en) * | 2009-10-26 | 2011-04-28 | Samsung Electronics Co., Ltd. | Method and apparatus for compensating for temperature variations of a liquid crystal display panel for a 3-dimensional display |
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| KR100580552B1 (ko) * | 2003-11-17 | 2006-05-16 | 엘지.필립스 엘시디 주식회사 | 액정표시장치의 구동방법 및 구동장치 |
| JP2006106121A (ja) * | 2004-09-30 | 2006-04-20 | Toshiba Corp | 映像表示装置 |
| JP2010002876A (ja) * | 2008-05-19 | 2010-01-07 | Sony Ericsson Mobilecommunications Japan Inc | 表示装置、表示制御方法および表示制御プログラム |
| CN101546541B (zh) * | 2009-02-19 | 2011-07-27 | 华映光电股份有限公司 | 用于液晶面板的背光控制方法及相关液晶显示器 |
| KR101295882B1 (ko) * | 2009-11-30 | 2013-08-12 | 엘지디스플레이 주식회사 | 액정표시장치 및 그의 로컬디밍 제어방법 |
| CN102298904A (zh) * | 2010-06-28 | 2011-12-28 | 华为终端有限公司 | 调节显示装置的背光亮度的方法及具有显示装置的设备 |
| TWI443633B (zh) * | 2011-01-17 | 2014-07-01 | Hongda Liu | 液晶顯示裝置 |
| KR20140037632A (ko) * | 2012-09-19 | 2014-03-27 | 삼성전자주식회사 | 디스플레이 장치 및 제어 방법 |
| KR102153605B1 (ko) * | 2013-11-27 | 2020-09-09 | 삼성디스플레이 주식회사 | 입체 영상 표시 장치 |
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- 2014-08-08 CN CN201410390974.5A patent/CN104157262B/zh not_active Expired - Fee Related
- 2014-08-18 WO PCT/CN2014/084653 patent/WO2016019599A1/zh not_active Ceased
- 2014-08-18 US US14/382,618 patent/US9892694B2/en not_active Expired - Fee Related
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| US20030227435A1 (en) * | 2002-06-06 | 2003-12-11 | Chang-Fa Hsieh | Method for adjusting and detecting brightness of liquid crystal displays |
| CN1908748A (zh) * | 2005-08-05 | 2007-02-07 | 三星电子株式会社 | 背光单元、包括该背光单元的显示设备及其控制方法 |
| WO2008096469A1 (ja) * | 2007-02-07 | 2008-08-14 | Sharp Kabushiki Kaisha | 表示装置 |
| CN101159121A (zh) * | 2007-11-20 | 2008-04-09 | 京东方科技集团股份有限公司 | 背光源控制系统及方法 |
| JP2010204161A (ja) * | 2009-02-27 | 2010-09-16 | Panasonic Corp | 液晶表示装置及び携帯端末装置 |
| US20110096105A1 (en) * | 2009-10-26 | 2011-04-28 | Samsung Electronics Co., Ltd. | Method and apparatus for compensating for temperature variations of a liquid crystal display panel for a 3-dimensional display |
| CN102196294A (zh) * | 2010-03-16 | 2011-09-21 | 康佳集团股份有限公司 | 立体电视的信号处理方法及立体电视 |
| CN101950543A (zh) * | 2010-09-08 | 2011-01-19 | 青岛海信电器股份有限公司 | 动态背光调整方法及装置 |
| CN103428519A (zh) * | 2012-05-25 | 2013-12-04 | 三菱电机株式会社 | 立体图像显示装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| US9892694B2 (en) | 2018-02-13 |
| US20160253968A1 (en) | 2016-09-01 |
| CN104157262A (zh) | 2014-11-19 |
| CN104157262B (zh) | 2017-09-15 |
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