WO2019061655A1 - 液晶显示器驱动方法、系统及计算机可读取介质 - Google Patents
液晶显示器驱动方法、系统及计算机可读取介质 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
- G09G3/36—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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- the present invention relates to the field of display technologies, and in particular, to a liquid crystal display driving method and system, and a computer readable medium.
- the core of display technology is to reproduce the human eye's perception of the real world.
- LCD display technology is mature, low cost, high reliability, etc., but the brightness of any display pixel of LCD cannot be controlled at the pixel level.
- the backlight must be illuminated in a full or large area.
- Backlight power consumption accounts for about 80% of the power consumption of the entire display panel, but more than 90% of the light is blocked or absorbed, which does not contribute to effective display brightness, and the backlight brightness utilization is low.
- the efficiency of the RGBW display relative to the RGB display is increased to 150%-200%, but at the same time the brightness of the saturated color drops to ⁇ 75%, making the human eye objectively feel the display of saturated colors.
- the content appears dim and low color, resulting in uneven brightness gain resulting in color shift problem, which limits the advantages of RGBW technology and limits the application of RGBW technology in HDR (high dynamic ranges) display technology.
- the invention provides a liquid crystal display driving method and system and a computer readable medium, which can improve the brightness utilization ratio of the liquid crystal display backlight and improve the color shift problem caused by the uneven brightness gain.
- an embodiment of the present invention provides a liquid crystal display driving method, where the liquid crystal display driving method includes:
- the liquid crystal display is driven according to the corrected luminance gain matrix.
- a driving system for a liquid crystal display comprising:
- a conversion module configured to convert a first picture signal input to the liquid crystal display into a second picture signal including a gain, and obtain a brightness gain of each pixel in the picture displayed by the liquid crystal display according to the second picture signal, to obtain a brightness Gain matrix
- a first calculation module configured to calculate a color shift threshold gain corresponding to the preset color shift threshold according to a preset color shift threshold
- a second calculating module configured to calculate, according to a preset highlight threshold, a highlight threshold gain corresponding to the preset highlight threshold
- a correction module configured to correct the brightness gain matrix according to the color shift threshold gain and the highlight threshold gain
- a driving module configured to drive the liquid crystal display according to the corrected brightness gain matrix.
- a computer readable storage medium wherein a program for a liquid crystal display driver is stored, wherein the method provided by the first aspect is performed when the program is executed.
- a computer program product comprising a non-transitory computer readable storage medium storing a computer program, the computer program being operative to cause a computer to perform the method provided by the first aspect.
- FIG. 1 is a schematic flow chart of a liquid crystal display driving method according to an embodiment of the present invention.
- FIG. 2 is a structural block diagram of a liquid crystal display driving system according to an embodiment of the present invention.
- FIG. 3 is a structural block diagram of another liquid crystal display driving system according to an embodiment of the present invention.
- FIG. 4 is a schematic structural diagram of a liquid crystal display driving system according to an embodiment of the present invention.
- references to "an embodiment” herein mean that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of the invention.
- the appearances of the phrases in various places in the specification are not necessarily referring to the same embodiments, and are not exclusive or alternative embodiments that are mutually exclusive. Those skilled in the art will understand and implicitly understand that the embodiments described herein can be combined with other embodiments.
- the present invention provides a liquid crystal display driving method. Specifically, in the embodiment, the method is as shown in FIG. 1, including but not limited to the following steps.
- Step S101 converting a first picture signal input to the liquid crystal display into a second picture signal including a gain, and obtaining each pixel point in the picture displayed by the liquid crystal display according to the second picture signal
- the brightness gain is obtained to obtain a luminance gain matrix.
- Step S102 Calculate a color shift threshold gain corresponding to the preset color shift threshold according to a preset color shift threshold.
- the pixel gain of the brightness gain matrix that is only the ratio of the preset color shift threshold is smaller than the color shift threshold gain.
- Step S103 Calculate a highlight threshold gain corresponding to the preset highlight threshold according to a preset highlight threshold.
- the pixel gain of the brightness gain matrix having a ratio of the preset highlight threshold is greater than the highlight threshold gain.
- the number of the preset highlight thresholds includes at least one.
- Step S104 correcting the brightness gain matrix according to the color shift threshold gain and the highlight threshold gain.
- the brightness gain in the brightness gain matrix is less than the preset color deviation threshold, the brightness gain is not corrected
- Step S105 driving the liquid crystal display according to the corrected brightness gain matrix.
- the method further includes: performing statistical counting on the brightness gain matrix to obtain a statistical matrix; and setting the preset color shift threshold and the preset highlight threshold according to the statistical matrix.
- obtaining the gray scale of one frame of the liquid crystal display including the height, the width, and the grayscale value of the R/G/B three channels, constitutes a grayscale matrix gray (height, width, R/G/B).
- the gray-scale matrix gray (height, width, R/G/B) is normalized according to the electro-optic curve.
- the grayscale matrix gray (height, width, R/G/B) can be normalized using a gamma curve.
- the color shift threshold ratio is set, and the corresponding color shift threshold gain gain_threshold is calculated by the gain gain matrix gain(height, width), and the color shift threshold gain gain_threshold is defined as the ratio of the gain gain matrix gain(height, width) is only The pixel gain of the color deviation threshold ratio is smaller than the color shift threshold gain gain_threshold.
- the definition of the highlight threshold gain is that only the proportion of the gain gain matrix gain(height, width) is the highlight.
- the pixel gain of the threshold is greater than the highlighted threshold gain.
- the number of the highlight thresholds includes at least one.
- the brightness gain matrix is modified according to the color shift threshold gain and the highlight threshold gain.
- Correcting the brightness gain matrix according to the color shift threshold gain and the highlight threshold gain including:
- the brightness gain in the brightness gain matrix is less than the preset color deviation threshold, the brightness gain is not corrected
- the following is an example in which the number of highlight thresholds is two.
- the corresponding highlight threshold gains are gain_threshold1 and gain_threshold2, according to the formula:
- K1 and K2 are attenuation factors, and 0 ⁇ K1 ⁇ K2 ⁇ 1.
- the luminance gain matrix gain(height, width) is corrected to obtain a corrected luminance gain matrix Gain(height, width).
- the liquid crystal display is driven according to the corrected brightness gain matrix.
- the following is an example in which the number of highlight thresholds is N.
- N highlight thresholds ratio1, ratio2, ratio(N-1), and ratio N are set, the corresponding highlight threshold gains are gain_threshold1, gain_threshold2, ...gain_threshold(N-1) And gain_threshold N, according to the formula:
- K1, K2...K(N-1), K(N) are attenuation factors, and 0 ⁇ K1 ⁇ K2 ⁇ ...K(N-1) ⁇ K(N) ⁇ 1, for the luminance gain matrix gain (height, width) is corrected to obtain a corrected luminance gain matrix Gain(height, width).
- the liquid crystal display is driven according to the corrected brightness gain matrix.
- the luminance gain matrix gain(height, width) may be statistically counted, that is, divided into n equal parts, for example, n may be 50, 100, or the like.
- n may be 50, 100, or the like.
- the liquid crystal display driving method provided by the present invention converts a first picture signal of the liquid crystal display into a second picture signal including a gain, and obtains a brightness gain of each pixel point in the picture in the liquid crystal display according to the second picture signal to obtain brightness
- the gain matrix is combined with the preset color shift threshold and the preset highlight threshold to correct the brightness gain matrix, and the liquid crystal display is driven according to the corrected brightness, thereby improving the color shift problem occurring when the liquid crystal display is displayed.
- the liquid crystal display driving method of the present invention drives the display screen of the liquid crystal display
- the brightness gain is lowered (that is, the brightness of the white sub-pixel is lowered), thereby causing the liquid crystal display to display color.
- the color purity of the picture is high; when the black, white, and gray pictures need to be displayed, the brightness gain is increased (that is, the brightness of the white sub-pixel is increased), so that when the liquid crystal display displays black, white, and gray pictures, The brightness of the picture is higher.
- a liquid crystal display driving system 200 including a conversion module 201, a first calculation module 202, a second calculation module 203, a correction module 204, and a drive module 205.
- a conversion module 201 a conversion module 201, a first calculation module 202, a second calculation module 203, a correction module 204, and a drive module 205.
- a correction module 204 a correction module 204.
- a drive module 205 As shown in FIG. 2, a liquid crystal display driving system 200 is provided, including a conversion module 201, a first calculation module 202, a second calculation module 203, a correction module 204, and a drive module 205.
- the specific functions of each module are described in detail below.
- the conversion module 201 is configured to convert a first picture signal input to the liquid crystal display into a second picture signal including a gain, and obtain a brightness gain of each pixel in the picture displayed by the liquid crystal display according to the second picture signal, Luminance gain matrix.
- the first calculation module 202 is configured to calculate a color shift threshold gain corresponding to the preset color shift threshold according to a preset color shift threshold.
- only the pixel gain of the preset color shift threshold is smaller than the pixel gain of the brightness gain matrix The color shift threshold gain.
- the second calculating module 203 is configured to calculate a highlight threshold gain corresponding to the preset highlight threshold according to the preset highlight threshold.
- the pixel gain of the brightness gain matrix having a ratio of the preset highlight threshold is greater than the highlight threshold gain.
- the number of the preset highlight thresholds includes at least one.
- the correction module 204 is configured to correct the brightness gain matrix according to the color shift threshold gain and the highlight threshold gain.
- the driving module 205 is configured to drive the liquid crystal display according to the modified brightness gain matrix.
- the brightness gain in the brightness gain matrix is less than the preset color deviation threshold, the brightness gain is not corrected
- the liquid crystal display driving system 200 may further include:
- the statistics module 206 is configured to perform statistical counting on the brightness gain matrix to obtain a statistical matrix.
- the setting module 207 is configured to set the preset color shift threshold and the preset highlight threshold according to the statistical matrix.
- obtaining the gray scale of one frame of the liquid crystal display including the height, the width, and the grayscale value of the R/G/B three channels, constitutes a grayscale matrix gray (height, width, R/G/B).
- the gray-scale matrix gray (height, width, R/G/B) is normalized according to the electro-optic curve.
- the grayscale matrix gray (height, width, R/G/B) can be normalized using a gamma curve.
- the color deviation threshold ratio is set by the first calculation module 202, and the corresponding color deviation threshold gain gain_threshold is calculated by the gain gain matrix gain(height, width), and the color deviation threshold gain gain_threshold is defined as the luminance gain matrix gain(height, width). Only the pixel gain in which the ratio is the color shift threshold ratio is smaller than the color shift threshold gain gain_threshold.
- the brightness threshold is set by the second calculation module 203, and the corresponding brightness threshold is calculated by using the gain matrix (gain, width).
- the brightness threshold is defined as the gain matrix (gain, width).
- a pixel gain having a ratio of the highlight threshold is greater than the highlight threshold gain.
- the number of the highlight thresholds includes at least one.
- the correction module 204 corrects the brightness gain matrix according to the color shift threshold gain and the highlight threshold gain.
- the following is an example in which the number of highlight thresholds is two.
- the corresponding highlight threshold gains are gain_threshold1 and gain_threshold2, and the correction module 204 according to the formula:
- the luminance gain matrix gain(height, width) is corrected to obtain a modified luminance gain matrix Gain(height, width).
- the driving module 205 drives the liquid crystal display according to the corrected brightness gain matrix.
- the following is an example in which the number of highlight thresholds is N.
- N highlight thresholds ratio1, ratio2, ratio(N-1), and ratio N are set, the corresponding highlight threshold gains are gain_threshold1, gain_threshold2, ...gain_threshold(N-1) And gain_threshold N, then the correction module 204 according to the formula:
- K1, K2...K(N-1), K(N) are attenuation factors, and 0 ⁇ K1 ⁇ K2 ⁇ ...K(N-1) ⁇ K(N) ⁇ 1, for the luminance gain matrix gain (height, width) is corrected to obtain a corrected luminance gain matrix Gain(height, width).
- the driving module 205 drives the liquid crystal display according to the corrected brightness gain matrix.
- the liquid crystal display driving system 200 may further include a statistics module 206 and a setting module 207.
- the statistic module 206 performs statistical counting on the gain gain matrix gain(height, width), that is, it is divided into n equal parts, for example, n can be 50, 100, etc., and a statistical matrix is obtained.
- the setting module 207 further sets the preset color shift threshold and the preset highlight threshold according to the statistical matrix.
- the picture signal conversion and the brightness gain calculation of the liquid crystal display are combined, and the preset color shift threshold and the preset highlight threshold are combined to improve the backlight brightness utilization of the liquid crystal display, and the liquid crystal display is improved due to uneven brightness gain. Color shift problem.
- the embodiment of the invention further provides a computer storage medium, wherein a program for driving the liquid crystal display is stored, and when the program is executed, part or all of the steps of the liquid crystal display driving method as described in the above method embodiments are performed. .
- the embodiment of the present invention further provides a computer program product, wherein a program for driving the liquid crystal display is stored, and the computer program product performs some or all of the steps of the liquid crystal display driving method as described in the above method embodiments.
- the liquid crystal display driving system 300 includes a memory 301, a processor 302, a display 303, a communication interface 304, and a bus 305.
- the processor 302 is operative to execute or perform the techniques described in FIG.
- the memory 301, the processor 302, the display 303, and the communication interface 304 may be connected to each other through a bus 305; the bus 314 may be a peripheral component interconnection standard bus or an extended industry standard structure bus.
- the bus 314 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 4, but it does not mean that there is only one bus or one type of bus.
- the storage medium may be a magnetic disk, an optical disk, a read-only storage memory, or a random storage memory.
- the disclosed device may be It's way to achieve it.
- the device embodiments described above are merely illustrative.
- the division of the unit is only a logical function division.
- there may be another division manner for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed.
- the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical or otherwise.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
- each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
- the above integrated unit can be implemented in the form of hardware or in the form of a software program module.
- the integrated unit if implemented in the form of a software program module and sold or used as a standalone product, may be stored in a computer readable memory. Based on such understanding, the technical solution of the present invention may contribute to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a memory. A number of instructions are included to cause a computer device (which may be a personal computer, server or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
- the foregoing memory includes: a U disk, a read only memory, a random access memory, a removable hard disk, a magnetic disk, or an optical disk, and the like, which can store program codes.
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Abstract
一种液晶显示器驱动方法，包括将输入到液晶显示器的第一画面信号转换为包括增益的第二画面信号，并根据第二画面信号得到液晶显示器显示的画面中每个像素点的亮度增益，得到亮度增益矩阵（S101）；根据预设色偏阈值，计算预设色偏阈值对应的色偏阈值增益（S102）；根据预设高亮阈值，计算预设高亮阈值对应的高亮阈值增益（S103）；根据色偏阈值增益和高亮阈值增益，对亮度增益矩阵进行修正（S104）；根据修正后的亮度增益矩阵驱动液晶显示器（S105）。能够提高液晶显示器背光亮度利用率以及改善亮度增益不均匀导致的色偏问题。
Description
本发明要求2017年9月28日递交的发明名称为“液晶显示器驱动方法、系统及计算机可读取介质”的申请号201710898972.0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。
本发明涉及显示技术领域，特别涉及一种液晶显示器驱动方法、系统及计算机可读取介质。
显示技术的核心在于再现人眼对于真实世界的认知，其中LCD显示技术工艺成熟、成本较低、可靠性较高等，但是LCD的任意显示像素的亮度并不能以像素级别进行控制，只能通过背光必须以整面或者大面积点亮的方式提供照明。背光功耗占整个显示面板功耗的80％左右，但是其中又有超过90％以上的光线被阻挡或者吸收未能贡献有效的显示亮度，背光亮度利用率低。一般而言RGBW显示器相对于RGB显示器的非饱和色亮度效率提高到150％-200％的水平，但是于此同时饱和色的亮度下降到～75％左右，使得人眼客观上感觉饱和色的显示内容显得暗淡、低彩，产生亮度增益不均匀导致色偏问题，限制了RGBW技术优势，也限制了RGBW技术在HDR(high dynamic ranges)显示技术的应用。
发明内容
本发明提供了一种液晶显示器驱动方法、系统及计算机可读取介质，可以提高液晶显示器背光亮度利用率以及改善亮度增益不均匀导致的色偏问题。
第一方面，本发明实施例提供一种液晶显示器驱动方法，所述液晶显示器驱动方法包括：
将输入到液晶显示器的第一画面信号转换为包括增益的第二画面信号，并根据所述第二画面信号得到液晶显示器显示的画面中每个像素点的亮度增益，
得到亮度增益矩阵；
根据预设色偏阈值，计算所述预设色偏阈值对应的色偏阈值增益；
根据预设高亮阈值，计算所述预设高亮阈值对应的高亮阈值增益；
根据所述色偏阈值增益和所述高亮阈值增益，对所述亮度增益矩阵进行修正；
根据修正后的亮度增益矩阵驱动所述液晶显示器。
第二方面，提供一种液晶显示器的驱动系统，所述液晶显示器驱动系统包括：
转换模块，用于将输入到液晶显示器的第一画面信号转换为包括增益的第二画面信号，并根据所述第二画面信号得到液晶显示器显示的画面中每个像素点的亮度增益，得到亮度增益矩阵；
第一计算模块，用于根据预设色偏阈值，计算所述预设色偏阈值对应的色偏阈值增益；
第二计算模块，用于根据预设高亮阈值，计算所述预设高亮阈值对应的高亮阈值增益；
修正模块，用于根据所述色偏阈值增益和所述高亮阈值增益，对所述亮度增益矩阵进行修正；
驱动模块，用于根据修正后的亮度增益矩阵驱动所述液晶显示器。
第三方面，提供一种计算机可读存储介质，其中，其存储了用于液晶显示器驱动的程序，其中，所述程序被执行的时候执行第一方面提供的方法。
第四方面，提供一种计算机程序产品，所述计算机程序产品包括存储了计算机程序的非瞬时性计算机可读存储介质，所述计算机程序可操作来使计算机执行第一方面提供的方法。
实施本发明实施例，具有如下有益效果：
可以看出，通过本发明实施例中液晶显示器的画面信号转换以及亮度增益计算，并结合预设色偏阈值和预设高亮阈值，使得液晶显示器背光亮度利用率提高，同时改善了液晶显示器由于亮度增益不均匀导致的色偏问题。
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一种液晶显示器驱动方法的流程示意图。
图2是本发明实施例提供的一种液晶显示器驱动系统的结构框图。
图3是本发明实施例提供的另一种液晶显示器驱动系统的结构框图。
图4是本发明实施例提供的一种液晶显示器驱动系统的结构示意图。
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。
本发明的说明书和权利要求书及所述附图中的术语“第一”、“第二”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本发明的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
为解决上述操作的不足的问题，本发明提出了一种液晶显示器驱动方法，具体的，在本实施例中，该方法如图1所示，包括但不仅限于如下步骤。
步骤S101，将输入到液晶显示器的第一画面信号转换为包括增益的第二画面信号，并根据所述第二画面信号得到液晶显示器显示的画面中每个像素点
的亮度增益，得到亮度增益矩阵。
步骤S102，根据预设色偏阈值，计算所述预设色偏阈值对应的色偏阈值增益。
其中，所述亮度增益矩阵中仅有比例为所述预设色偏阈值的像素增益小于所述色偏阈值增益。
步骤S103，根据预设高亮阈值，计算所述预设高亮阈值对应的高亮阈值增益。
其中，所述亮度增益矩阵中仅有比例为所述预设高亮阈值的像素增益大于所述高亮阈值增益。
其中，所述预设高亮阈值的个数包括至少一个。
步骤S104，根据所述色偏阈值增益和所述高亮阈值增益，对所述亮度增益矩阵进行修正。
其中，当亮度增益矩阵中的亮度增益小于所述预设色偏阈值时，不对所述亮度增益进行修正；
当亮度矩阵中的亮度增益位于所述预设色偏阈值与第一高亮阈值增益之间时，将所述亮度增益修正为所述预设色偏阈值；
当亮度增益矩阵中的亮度增益位于第N高亮阈值增益与第(N+1)高亮增益之间时，将所述亮度增益修正为所述第N高亮阈值增益与预设衰减因子的乘积，其中，N为大于等于一的正整数，且N越大，对应的衰减因子的值越大。
步骤S105，根据修正后的亮度增益矩阵驱动所述液晶显示器。
可选的，步骤S101之后还包括：对所述亮度增益矩阵进行统计计数，得到统计矩阵；根据所述统计矩阵，设置所述预设色偏阈值和所述预设高亮阈值。
例如，获取液晶显示器显示的一帧画面的灰阶，包括高度、宽度和R/G/B三个通道的灰阶值，构成灰阶矩阵gray(height，width，R/G/B)。根据电光曲线对所述灰阶矩阵gray(height，width，R/G/B)进行归一化处理。可以采用Gamma曲线对灰阶矩阵gray(height，width，R/G/B)进行归一化处理。
将RGB信号转为RGBW信号，并根据转化函数进行亮度增益计算，得到亮度增益矩阵，如亮度增益矩阵gain(height，width)＝＝f(Rin，Gin，Bin)，
其中f(Rin，Gin，Bin)为所述图像的每个像素点对应的R/G/B输入的灰阶值Rin/Gin/Bin，f(x)为亮度增益函数。
设置色偏阈值ratio，并通过亮度增益矩阵gain(height，width)计算得到相应的色偏阈值增益gain_threshold，色偏阈值增益gain_threshold的定义为亮度增益矩阵gain(height，width)中仅有比例为所述色偏阈值ratio的像素增益小于所述色偏阈值增益gain_threshold。
设置高亮阈值，并通过亮度增益矩阵gain(height，width)计算得到相应的高亮阈值增益，高亮阈值增益的定义为亮度增益矩阵gain(height，width)中仅有比例为所述高亮阈值的像素增益大于所述高亮阈值增益。
其中，高亮阈值的个数包括至少一个。
根据所述色偏阈值增益和所述高亮阈值增益，对所述亮度增益矩阵进行修正。
根据所述色偏阈值增益和所述高亮阈值增益，对所述亮度增益矩阵进行修正，包括：
当亮度增益矩阵中的亮度增益小于所述预设色偏阈值时，不对所述亮度增益进行修正；
当亮度矩阵中的亮度增益位于所述预设色偏阈值与第一高亮阈值增益之间时，将所述亮度增益修正为所述预设色偏阈值；
当亮度增益矩阵中的亮度增益位于第N高亮阈值增益与第(N+1)高亮增益之间时，将所述亮度增益修正为所述第N高亮阈值增益与预设衰减因子的乘积，其中，N为大于等于一的正整数，且N越大，对应的衰减因子的值越大。
具体地，下面，以高亮阈值的个数为两个为例进行说明。
若设置两个高亮阈值ratio1和ratio2，则相对应的高亮阈值增益为gain_threshold1和gain_threshold2，则根据公式：
其中，K1、K2为衰减因子，且0≤K1<K2≤1。对亮度增益矩阵gain(height，width)进行修正，得到修正后的亮度增益矩阵Gain(height，width)。根据修正后的亮度增益矩阵驱动液晶显示器。
具体地，下面，以高亮阈值的个数为N个为例进行说明。
若设置N个高亮阈值ratio1、ratio2......ratio(N-1)和ratio N，则相对应的高亮阈值增益为gain_threshold1、gain_threshold2......gain_threshold(N-1)和gain_threshold N，则根据公式：
其中，K1、K2……K(N-1)、K(N)为衰减因子，且0≤K1<K2<……K(N-1)<K(N)≤1，对亮度增益矩阵gain(height，width)进行修正，得到修正后的亮度增益矩阵Gain(height，width)。根据修正后的亮度增益矩阵驱动液晶显示器。
得到亮度增益矩阵之后还可以对亮度增益矩阵gain(height，width)进行统计计数，即分为n等份，例如n可以为50、100等。获得统计矩阵；根据所述统计矩阵，设置所述预设色偏阈值和所述预设高亮阈值。
本发明提供的液晶显示器驱动方法将液晶显示器的第一画面信号转换为包括增益的第二画面信号，并根据第二画面信号得到液晶显示器中的画面中的每个像素点的亮度增益，得到亮度增益矩阵，并结合预设色偏阈值和预设高亮阈值对亮度增益矩阵进行修正，并根据修正后的亮度曾驱动所述液晶显示器，改善了液晶显示器显示画面时出现的色偏问题。
本发明液晶显示器驱动方法驱动液晶显示器显示画面的时候，在需要显示色彩纯度较高的彩色画面的时候，将亮度增益调低(即，将白色子像素的亮度降低)，从而使得液晶显示器显示彩色画面的色彩纯度较高；在需要显示黑、白、灰画面的时候，将亮度增益增大(即，将白色子像素的亮度增高)，从而使得液晶显示器显示黑、白、灰画面的时候，画面的亮度更高。
如图2所示，提供了一种液晶显示器驱动系统200，包括转换模块201，第一计算模块202、第二计算模块203、修正模块204和驱动模块205。各个模块的具体功能详细介绍如下。
转换模块201，用于将输入到液晶显示器的第一画面信号转换为包括增益的第二画面信号，并根据所述第二画面信号得到液晶显示器显示的画面中每个像素点的亮度增益，得到亮度增益矩阵。
第一计算模块202，用于根据预设色偏阈值，计算所述预设色偏阈值对应的色偏阈值增益。
其中，所述亮度增益矩阵中仅有比例为所述预设色偏阈值的像素增益小于
所述色偏阈值增益。
第二计算模块203，用于根据预设高亮阈值，计算所述预设高亮阈值对应的高亮阈值增益。
其中，所述亮度增益矩阵中仅有比例为所述预设高亮阈值的像素增益大于所述高亮阈值增益。
其中，所述预设高亮阈值的个数包括至少一个。
修正模块204，用于根据所述色偏阈值增益和所述高亮阈值增益，对所述亮度增益矩阵进行修正。
驱动模块205，用于根据修正后的亮度增益矩阵驱动所述液晶显示器。
其中，当亮度增益矩阵中的亮度增益小于所述预设色偏阈值时，不对所述亮度增益进行修正；
当亮度矩阵中的亮度增益位于所述预设色偏阈值与第一高亮阈值增益之间时，将所述亮度增益修正为所述预设色偏阈值；
当亮度增益矩阵中的亮度增益位于第N高亮阈值增益与第(N+1)高亮增益之间时，将所述亮度增益修正为所述第N高亮阈值增益与预设衰减因子的乘积，其中，N为大于等于一的正整数，且N越大，对应的衰减因子的值越大。
可选的，如图3所示，液晶显示器驱动系统200还可以包括：
统计模块206，用于对所述亮度增益矩阵进行统计计数，得到统计矩阵；
设置模块207，用于根据所述统计矩阵，设置所述预设色偏阈值和所述预设高亮阈值。
例如，获取液晶显示器显示的一帧画面的灰阶，包括高度、宽度和R/G/B三个通道的灰阶值，构成灰阶矩阵gray(height，width，R/G/B)。根据电光曲线对所述灰阶矩阵gray(height，width，R/G/B)进行归一化处理。可以采用Gamma曲线对灰阶矩阵gray(height，width，R/G/B)进行归一化处理。
根据转换模块201将RGB信号转为RGBW信号，并根据转化函数进行亮度增益计算，得到亮度增益矩阵，如亮度增益矩阵gain(height，width)＝＝f(Rin，Gin，Bin)，其中f(Rin，Gin，Bin)为所述图像的每个像素点对应的R/G/B输入的灰阶值Rin/Gin/Bin，f(x)为亮度增益函数。
通过第一计算模块202设置色偏阈值ratio，并通过亮度增益矩阵gain(height，width)计算得到相应的色偏阈值增益gain_threshold，色偏阈值增益gain_threshold的定义为亮度增益矩阵gain(height，width)中仅有比例为所述色偏阈值ratio的像素增益小于所述色偏阈值增益gain_threshold。
通过第二计算模块203设置高亮阈值，并通过亮度增益矩阵gain(height，width)计算得到相应的高亮阈值增益，高亮阈值增益的定义为亮度增益矩阵gain(height，width)中仅有比例为所述高亮阈值的像素增益大于所述高亮阈值增益。
其中，高亮阈值的个数包括至少一个。
修正模块204根据所述色偏阈值增益和所述高亮阈值增益，对所述亮度增益矩阵进行修正。
具体地，下面，以高亮阈值的个数为两个为例进行说明。
若设置两个高亮阈值ratio1和ratio2，则相对应的高亮阈值增益为gain_threshold1和gain_threshold2，则修正模块204根据公式：
其中，K1、K2为衰减因子，且0≤K1<K2≤1，对亮度增益矩阵gain(height，width)进行修正，得到修正后的亮度增益矩阵Gain(height，width)。驱动模块205根据修正后的亮度增益矩阵驱动液晶显示器。
具体地，下面，以高亮阈值的个数为N个为例进行说明。
若设置N个高亮阈值ratio1、ratio2......ratio(N-1)和ratio N，则相对应的高亮阈值增益为gain_threshold1、gain_threshold2......gain_threshold(N-1)和gain_threshold N，则修正模块204根据公式：
其中，K1、K2……K(N-1)、K(N)为衰减因子，且0≤K1<K2<……K(N-1)<K(N)≤1，对亮度增益矩阵gain(height，width)进行修正，得到修正后的亮度增益矩阵Gain(height，width)。驱动模块205根据修正后的亮度增益矩阵驱动液晶显示器。
液晶显示器驱动系统200还可以包括统计模块206和设置模块207。其中统计模块206对亮度增益矩阵gain(height，width)进行统计计数，即分为n等份，例如n可以为50、100等，获得统计矩阵。设置模块207再根据所述统计矩阵，设置所述预设色偏阈值和所述预设高亮阈值。
此技术方案中经过液晶显示器的画面信号转换以及亮度增益计算，并结合预设色偏阈值和预设高亮阈值，使得液晶显示器背光亮度利用率提高，同时改善了液晶显示器由于亮度增益不均匀导致的色偏问题。
本发明实施例还提供一种计算机存储介质，其中存储了用于液晶显示器驱动的程序，该程序被执行的时候执行如上述方法实施例中记载的任何一种液晶显示器驱动方法的部分或全部步骤。
本发明实施例还提供一种计算机程序产品，其中存储了用于液晶显示器驱动的程序，该计算机程序产品执行如上述方法实施例中记载的任何一种液晶显示器驱动方法的部分或全部步骤。
参阅图4所示，提供了上述实施例中所涉及的液晶显示器驱动系统的一种可能的结构示意图。液晶显示器驱动系统300包括：存储器301、处理器302、显示器303、通信接口304和总线305。处理器302用于运行或执行图1所描述的技术过程。其中，存储器301、处理器302、显示器303、通信接口304可以通过总线305相互连接；总线314可以是外设部件互连标准总线或扩展工业标准结构总线等。所述总线314可以分为地址总线、数据总线、控制总线等。为便于表示，图4中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，所述的程序可存储于一计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施例的流程。其中，所述的存储介质可为磁碟、光盘、只读存储记忆体或随机存储记忆体等。
需要说明的是，对于前述的各方法实施例，为了简单描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本发明并不受所描述的动作顺序的限制，因为依据本发明，某些步骤可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于可选实施例，所涉及的动作和模块并不一定是本发明所必须的。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置，可通过其
它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件程序模块的形式实现。
所述集成的单元如果以软件程序模块的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储器中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储器中，包括若干指令用以使得一台计算机设备(可为个人计算机、服务器或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储器包括：U盘、只读存储器、随机存取存储器、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，该程序可以存储于一计算机可读存储器中，存储器可以包括：闪存盘、只读存储器、随机存取器、磁盘或光盘等。
以上对本发明实施例进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在
具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。
Claims (13)
- 一种液晶显示器驱动方法，其中，所述液晶显示器驱动方法包括：将输入到液晶显示器的第一画面信号转换为包括增益的第二画面信号，并根据所述第二画面信号得到液晶显示器显示的画面中每个像素点的亮度增益，得到亮度增益矩阵；根据预设色偏阈值，计算所述预设色偏阈值对应的色偏阈值增益；根据预设高亮阈值，计算所述预设高亮阈值对应的高亮阈值增益；根据所述色偏阈值增益和所述高亮阈值增益，对所述亮度增益矩阵进行修正；根据修正后的亮度增益矩阵驱动所述液晶显示器。
- 如权利要求1所述的液晶显示器驱动方法，其中，所述液晶显示器驱动方法还包括：对所述亮度增益矩阵进行统计计数，得到统计矩阵；根据所述统计矩阵，设置所述预设色偏阈值和所述预设高亮阈值。
- 如权利要求1所述的液晶显示器驱动方法，其中，所述亮度增益矩阵中仅有比例为所述预设色偏阈值的像素增益小于所述色偏阈值增益；所述亮度增益矩阵中仅有比例为所述预设高亮阈值的像素增益大于所述高亮阈值增益。
- 如权利要求1所述的液晶显示器驱动方法，其中，所述根据所述色偏阈值增益和所述高亮阈值增益，对所述亮度增益矩阵进行修正，包括：当亮度增益矩阵中的亮度增益小于所述预设色偏阈值时，不对所述亮度增益进行修正；当亮度矩阵中的亮度增益位于所述预设色偏阈值与第一高亮阈值增益之间时，将所述亮度增益修正为所述预设色偏阈值；当亮度增益矩阵中的亮度增益位于第N高亮阈值增益与第(N+1)高亮增 益之间时，将所述亮度增益修正为所述第N高亮阈值增益与预设衰减因子的乘积，其中，N为大于等于一的正整数，且N越大，对应的衰减因子的值越大。
- 一种液晶显示器驱动系统，其中，所述液晶显示器驱动系统包括：转换模块，用于将输入到液晶显示器的第一画面信号转换为包括增益的第二画面信号，并根据所述第二画面信号得到液晶显示器显示的画面中每个像素点的亮度增益，得到亮度增益矩阵；第一计算模块，用于根据预设色偏阈值，计算所述预设色偏阈值对应的色偏阈值增益；第二计算模块，用于根据预设高亮阈值，计算所述预设高亮阈值对应的高亮阈值增益；修正模块，用于根据所述色偏阈值增益和所述高亮阈值增益，对所述亮度增益矩阵进行修正；驱动模块，用于根据修正后的亮度增益矩阵驱动所述液晶显示器。
- 如权利要求5所述的液晶显示器驱动系统，其中，所述液晶显示器驱动系统还包括：统计模块，用于对所述亮度增益矩阵进行统计计数，得到统计矩阵；设置模块，用于根据所述统计矩阵，设置所述预设色偏阈值和所述预设高亮阈值。
- 如权利要求5所述的液晶显示器驱动系统，其中，所述亮度增益矩阵中仅有比例为所述预设色偏阈值的像素增益小于所述色偏阈值增益；所述亮度增益矩阵中仅有比例为所述预设高亮阈值的像素增益大于所述高亮阈值增益。
- 如权利要求5所述的液晶显示器驱动系统，其中，所述预设高亮阈值的个数包括至少一个。
- 如权利要求5所述的液晶显示器驱动系统，其中，所述修正模块，用于：当亮度增益矩阵中的亮度增益小于所述预设色偏阈值时，不对所述亮度增益进行修正；当亮度矩阵中的亮度增益位于所述预设色偏阈值与第一高亮阈值增益之间时，将所述亮度增益修正为所述预设色偏阈值；当亮度增益矩阵中的亮度增益位于第N高亮阈值增益与第(N+1)高亮增益之间时，将所述亮度增益修正为所述第N高亮阈值增益与预设衰减因子的乘积，其中，N为大于等于一的正整数，且N越大，对应的衰减因子的值越大。
- 一种计算机可读存储介质，其中，其存储了用于液晶显示器驱动的程序，其中，所述程序被执行的时候执行：将输入到液晶显示器的第一画面信号转换为包括增益的第二画面信号，并根据所述第二画面信号得到液晶显示器显示的画面中每个像素点的亮度增益，得到亮度增益矩阵；根据预设色偏阈值，计算所述预设色偏阈值对应的色偏阈值增益；根据预设高亮阈值，计算所述预设高亮阈值对应的高亮阈值增益；根据所述色偏阈值增益和所述高亮阈值增益，对所述亮度增益矩阵进行修正；根据修正后的亮度增益矩阵驱动所述液晶显示器。
- 如权利要求10所述的计算机可读存储介质，其中，所述液晶显示器驱动方法还包括：对所述亮度增益矩阵进行统计计数，得到统计矩阵；根据所述统计矩阵，设置所述预设色偏阈值和所述预设高亮阈值。
- 如权利要求10所述的计算机可读存储介质，其中，所述亮度增益矩阵中仅有比例为所述预设色偏阈值的像素增益小于所述色偏阈值增益；所述亮度增益矩阵中仅有比例为所述预设高亮阈值的像素增益大于所述高亮阈值增益。
- 如权利要求10所述的计算机可读存储介质，其中，所述根据所述色偏阈值增益和所述高亮阈值增益，对所述亮度增益矩阵进行修正，包括：当亮度增益矩阵中的亮度增益小于所述预设色偏阈值时，不对所述亮度增益进行修正；当亮度矩阵中的亮度增益位于所述预设色偏阈值与第一高亮阈值增益之间时，将所述亮度增益修正为所述预设色偏阈值；当亮度增益矩阵中的亮度增益位于第N高亮阈值增益与第(N+1)高亮增益之间时，将所述亮度增益修正为所述第N高亮阈值增益与预设衰减因子的乘积，其中，N为大于等于一的正整数，且N越大，对应的衰减因子的值越大。
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4799106A (en) * | 1985-08-22 | 1989-01-17 | Rank Pullin Controls Limited | Controlling image signals in an imaging apparatus |
| CN101051443A (zh) * | 2006-04-05 | 2007-10-10 | 广达电脑股份有限公司 | 根据图像调整显示器的亮度的方法及装置 |
| CN102074208A (zh) * | 2009-11-24 | 2011-05-25 | 乐金显示有限公司 | 液晶显示器及其局部调光控制方法 |
| CN105141849A (zh) * | 2015-09-21 | 2015-12-09 | 济南中维世纪科技有限公司 | 一种提高夜视聚焦统计信息准确度的方法及系统 |
| CN106341613A (zh) * | 2015-07-06 | 2017-01-18 | 瑞昱半导体股份有限公司 | 宽动态范围影像方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI325822B (en) * | 2007-04-04 | 2010-06-11 | Univ Nat Taiwan Science Tech | Ink saving and tone correction printing technique using error diffusion |
| KR101731118B1 (ko) * | 2010-11-11 | 2017-04-27 | 엘지디스플레이 주식회사 | 액정표시장치 및 그의 글로벌디밍 제어방법 |
| CN102523397A (zh) * | 2011-12-12 | 2012-06-27 | 四川长虹电器股份有限公司 | 调节屏幕画质的方法 |
| CN103295557B (zh) * | 2012-02-24 | 2016-03-30 | 联想(北京)有限公司 | 一种显示调整方法及装置 |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4799106A (en) * | 1985-08-22 | 1989-01-17 | Rank Pullin Controls Limited | Controlling image signals in an imaging apparatus |
| CN101051443A (zh) * | 2006-04-05 | 2007-10-10 | 广达电脑股份有限公司 | 根据图像调整显示器的亮度的方法及装置 |
| CN102074208A (zh) * | 2009-11-24 | 2011-05-25 | 乐金显示有限公司 | 液晶显示器及其局部调光控制方法 |
| CN106341613A (zh) * | 2015-07-06 | 2017-01-18 | 瑞昱半导体股份有限公司 | 宽动态范围影像方法 |
| CN105141849A (zh) * | 2015-09-21 | 2015-12-09 | 济南中维世纪科技有限公司 | 一种提高夜视聚焦统计信息准确度的方法及系统 |
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