WO2016101391A1 - 提高液晶模组亮度均匀性的方法 - Google Patents

提高液晶模组亮度均匀性的方法 Download PDF

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Publication number
WO2016101391A1
WO2016101391A1 PCT/CN2015/072479 CN2015072479W WO2016101391A1 WO 2016101391 A1 WO2016101391 A1 WO 2016101391A1 CN 2015072479 W CN2015072479 W CN 2015072479W WO 2016101391 A1 WO2016101391 A1 WO 2016101391A1
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Prior art keywords
liquid crystal
distribution
backlight module
crystal panel
brightness
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PCT/CN2015/072479
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English (en)
French (fr)
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王将峰
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深圳市华星光电技术有限公司
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Priority to US14/428,965 priority Critical patent/US9477102B2/en
Publication of WO2016101391A1 publication Critical patent/WO2016101391A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0012—Optical design, e.g. procedures, algorithms, optimisation routines
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 
    • G02F1/13—Devices 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133611—Direct backlight including means for improving the brightness uniformity

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a method for improving brightness uniformity of a liquid crystal module.
  • Liquid crystal display has many advantages such as thin body, power saving, no radiation, etc., and is widely used, such as mobile phones, personal digital assistants (PDAs), digital cameras, computer screens or laptops. Screen, etc.
  • liquid crystal display devices which include a backlight module and a liquid crystal panel coupled to the backlight module.
  • the working principle of the liquid crystal panel is to place liquid crystal molecules in two parallel glass substrates. There are many vertical and horizontal small wires between the two glass substrates. The liquid crystal molecules are redirected by energization or not, and the light of the backlight module is refracted. Come out to produce the picture.
  • the liquid crystal panel itself does not emit light, and the light source provided by the backlight module is required to display the image normally.
  • the backlight module is divided into a side-in type backlight module and a direct-lit backlight module according to different incident positions of the light source.
  • the side-lit backlight module has a backlight LED strip (Light bar) disposed on the edge of the back panel behind the liquid crystal panel, and the light emitted by the LED strip is from the light guide surface of the light guide plate (LGP).
  • the light guide plate enters the light guide plate, is reflected and diffused, and is emitted from the light exit surface of the light guide plate, and then is supplied to the liquid crystal panel through the optical film group to form a surface light source.
  • the brightness uniformity of the backlight module has a great influence on the display uniformity of the liquid crystal module.
  • the brightness uniformity of the existing backlight module is usually defined by the ratio of the minimum value of the brightness of 9 points, 13 points or 25 points to the maximum value. When the ratio is greater than a certain value (such as 80%), the backlight module is considered as a backlight module.
  • the brightness distribution reaches the standard or is substantially uniform, and then the liquid crystal panel is combined with the liquid crystal panel. This design method neglects that the transmittance distribution of the liquid crystal panel is not completely uniform. As shown in FIG.
  • the liquid crystal when the brightness distribution of the backlight module 100 is uniform, after combining the liquid crystal panel 200 to form the liquid crystal module 300, the liquid crystal When the transmittance of the panel 200 is high, the brightness of the liquid crystal module 300 is high, and where the transmittance of the liquid crystal panel 200 is low, the brightness of the liquid crystal module 300 is low. Therefore, even if the brightness of the backlight module 100 is designed to be uniform, the brightness of the liquid crystal module 300 combined with the liquid crystal panel 200 may still be uneven.
  • the object of the present invention is to provide a method for improving the brightness uniformity of a liquid crystal module.
  • the plurality of liquid crystal panel samples are measured by a CCD, and the transmittance distribution of the liquid crystal panel is counted according to the transmittance distribution of the liquid crystal panel.
  • the present invention provides a method for improving brightness uniformity of a liquid crystal module, comprising the following steps:
  • Step 1 Measuring the transmittance distribution of the liquid crystal panel by using CCD
  • Step 2 calculating a relative brightness distribution of the ideal backlight module according to the transmittance distribution of the liquid crystal panel
  • Step 3 Manufacture and optimize a light guide plate dot structure of the backlight module according to the relative brightness distribution of the ideal backlight module.
  • the step 1 includes:
  • Step 11 using CCD to measure the brightness distribution of the liquid crystal module
  • Step 12 removing the liquid crystal panel in the liquid crystal module, and measuring the brightness distribution of the corresponding backlight module;
  • Step 13 Calculate a transmittance distribution of a liquid crystal panel according to a brightness distribution of the liquid crystal module and a brightness distribution of the backlight module.
  • Step 14 Measure the transmittance distribution of the plurality of liquid crystal panels according to the above steps and take an average value as the transmittance distribution of the liquid crystal panel.
  • the relative brightness distribution of the ideal backlight module in the step 2 is the reciprocal of the transmittance distribution of the liquid crystal panel.
  • the first version of the light guide plate dot is drawn by using the drawing software, and the optical simulation software is introduced to establish a model, and then the light guide plate dot is simulated and optimized according to the relative brightness distribution of the ideal backlight module.
  • the graphics software is solidworks, and the optical simulation software is lighttools.
  • the transmittance distribution of a liquid crystal panel in the step 13 is a ratio of a brightness distribution of the liquid crystal module to a brightness distribution of the backlight module.
  • the number of liquid crystal panels measured in the step 14 is greater than 10 pieces.
  • the invention provides a method for improving brightness uniformity of a liquid crystal module, comprising the following steps:
  • Step 1 Measuring the transmittance distribution of the liquid crystal panel by using CCD
  • Step 2 calculating a relative brightness distribution of the ideal backlight module according to the transmittance distribution of the liquid crystal panel
  • Step 3 fabricating and optimizing a light guide plate dot structure of the backlight module according to the relative brightness distribution of the ideal backlight module;
  • step 1 includes:
  • Step 11 using CCD to measure the brightness distribution of the liquid crystal module
  • Step 12 removing the liquid crystal panel in the liquid crystal module, and measuring the brightness distribution of the corresponding backlight module;
  • Step 13 Calculate a transmittance distribution of a liquid crystal panel according to a brightness distribution of the liquid crystal module and a brightness distribution of the backlight module.
  • Step 14 Measure the transmittance distribution of the plurality of liquid crystal panels according to the above steps and take an average value as the transmittance distribution of the liquid crystal panel;
  • the relative brightness distribution of the ideal backlight module in the step 2 is the reciprocal of the transmittance distribution of the liquid crystal panel
  • step 3 the first version of the light guide plate dot is drawn by using the drawing software, and the optical simulation software is introduced to establish a model, and then the light guide plate dot is simulated and optimized according to the relative brightness distribution of the ideal backlight module.
  • the invention provides a method for improving the brightness uniformity of a liquid crystal module, and measures a plurality of liquid crystal panel samples by a CCD, and calculates a transmittance distribution of the liquid crystal panel according to the liquid crystal panel.
  • the transmittance distribution calculates the relative brightness distribution of the ideal backlight module, and according to the relative brightness distribution of the ideal backlight module, optical software is used to design and optimize the light guide plate dot, thereby improving the brightness uniformity of the liquid crystal module and improving the liquid crystal.
  • the quality of the module improves the visual perception of the liquid crystal module, and the method has high precision and high speed, and can optimize the better effect before the experimental sample is produced, thereby reducing the number of samples and verification, and simplifying the process. cut costs.
  • FIG. 1 is a schematic view showing uneven brightness of a conventional liquid crystal module caused by uneven distribution of transmittance of a liquid crystal panel
  • FIG. 2 is a flow chart of a method for improving brightness uniformity of a liquid crystal module according to the present invention
  • FIG. 3 is a brightness distribution diagram of a liquid crystal module measured by CCD in step 11;
  • FIG. 4 is a brightness distribution diagram of a backlight module measured by CCD in step 12;
  • Figure 5 is a diagram showing the transmittance distribution of the liquid crystal panel obtained in the step 13;
  • step 6 is a relative brightness distribution diagram of an ideal backlight module calculated according to the transmittance distribution of the liquid crystal panel obtained in step 1;
  • Figure 7 is a model diagram of a first version of the light guide plate drawn by the drawing software solidworks
  • FIG. 8 is a schematic diagram of a light guide plate after the first version of the light guide plate model of FIG. 7 is introduced into the optical simulation software lighttools;
  • FIG. 9 is a schematic diagram of an optimization target of brightness distribution of a light-emitting surface of a light guide plate
  • FIG. 10 is a schematic diagram showing the brightness distribution of the light-emitting surface of the light guide plate after optimization
  • FIG. 11 is a schematic diagram showing brightness uniformity of a liquid crystal module prepared by optimizing a dot of a light guide plate.
  • the present invention relates to a method for improving brightness uniformity of a liquid crystal module.
  • the liquid crystal module is a backlight type liquid crystal module, which includes a backlight module and a liquid crystal coupled to the backlight module. panel.
  • the backlight module is a side-in backlight module or a direct-lit backlight module.
  • the liquid crystal display panel comprises a color filter (CF) substrate, a thin film transistor (TFT) substrate, and a liquid crystal (LC) sandwiched between the color filter substrate and the thin film transistor substrate.
  • Material and sealant frame (Sealant) composition is used to sealant frame (Sealant) composition.
  • the method for improving brightness uniformity of a liquid crystal module of the present invention includes the following steps:
  • Step 1 Measure the transmittance distribution of the liquid crystal panel using a CCD (Charge Coupled Device).
  • the step 1 includes:
  • Step 11 As shown in FIG. 3, the luminance distribution Lmodule of the liquid crystal module is measured by a CCD (Charge Coupled Device).
  • CCD Charge Coupled Device
  • Step 12 as shown in FIG. 4, the liquid crystal panel in the liquid crystal module is removed, and the brightness distribution Lbl of the corresponding backlight module is measured;
  • Step 13 As shown in FIG. 5, according to the brightness distribution of the liquid crystal module and the brightness distribution of the backlight module, a transmittance distribution of a liquid crystal panel is calculated.
  • Tr. Lmodule/Lbl.
  • Step 14 Measure the transmittance distribution of the plurality of liquid crystal panels according to the above steps and take an average value as the transmittance distribution of the liquid crystal panel.
  • the brightness distribution between different liquid crystal panels will be slightly different. Therefore, it is necessary to measure the transmittance distribution of a plurality of liquid crystal panels, and then take an average value as a liquid crystal surface. Plate penetration rate distribution.
  • the number of liquid crystal panels measured in the step 14 is greater than 10 pieces.
  • Step 2 the relative brightness distribution of the ideal backlight module is calculated according to the transmittance distribution of the liquid crystal panel.
  • the relative brightness distribution of the ideal backlight module may be taken as the reciprocal of the transmittance distribution of the liquid crystal panel, that is, 1/Tr.
  • Step 3 As shown in FIG. 7-9, the light guide plate dot structure of the backlight module is fabricated and optimized according to the relative brightness distribution of the ideal backlight module.
  • FIG. 7 firstly, the first version of the light guide plate dot is drawn by using the drawing software, and then the optical simulation software is introduced as shown in FIG. 8 to establish a model, and the relative brightness distribution of the ideal backlight module calculated according to step 2 is performed. Simulate and optimize the light guide plate dots.
  • FIG. 9 and FIG. 10 are respectively a schematic diagram of a brightness distribution optimization target of the light-emitting surface of the light guide plate and a brightness distribution diagram of the optimized light-emitting surface of the light guide plate, and the optimized light guide plate is assembled to obtain an optimized backlight module, and then After assembling with the corresponding liquid crystal panel, the brightness distribution of the optimized liquid crystal module obtained is as shown in FIG. 11. As can be seen from FIG. 11, the brightness uniformity of the optimized liquid crystal module is significantly improved, thereby improving the brightness. The taste and visual experience of the LCD module.
  • the drawing software may adopt solidworks
  • the optical simulation software may adopt lighttools.
  • the present invention provides a method for improving the brightness uniformity of a liquid crystal module.
  • the CCD is used to measure a plurality of liquid crystal panel samples, and the transmittance distribution of the liquid crystal panel is counted according to the wear of the liquid crystal panel.
  • the transmittance distribution calculates the relative brightness distribution of the ideal backlight module, and according to the relative brightness distribution of the ideal backlight module, optical software is used to design and optimize the light guide plate dot, thereby improving the uniformity of the brightness of the liquid crystal module and improving the liquid crystal mode.
  • the quality of the group improves the visual perception of the liquid crystal module, and the method has high precision and high speed, and can optimize the better effect before the experimental sample is produced, thereby reducing the number of samples and verification, thereby simplifying the process and saving. cost.

Abstract

一种提高液晶模组亮度均匀性的方法，包括如下步骤：步骤1、利用CCD量测液晶面板的穿透率分布；步骤2、根据所述液晶面板的穿透率分布计算理想的背光模组的相对亮度分布；步骤3、根据所述理想的背光模组的相对亮度分布制作并优化背光模组的导光板网点结构。

Description

提高液晶模组亮度均匀性的方法 技术领域
本发明涉及显示技术领域，尤其涉及一种提高液晶模组亮度均匀性的方法。
背景技术
液晶显示装置(Liquid Crystal Display，LCD)具有机身薄、省电、无辐射等众多优点，得到了广泛的应用，如：移动电话、个人数字助理(PDA)、数字相机、计算机屏幕或笔记本电脑屏幕等。
现有市场上的液晶显示装置大部分为背光型液晶显示装置，其包括背光模组(Backlight module)及结合于背光模组上的液晶面板。液晶面板的工作原理是在两片平行的玻璃基板当中放置液晶分子，两片玻璃基板中间有许多垂直和水平的细小电线，通过通电与否来控制液晶分子改变方向，将背光模组的光线折射出来产生画面。液晶面板本身不发光，需要借由背光模组提供的光源来正常显示影像，背光模组依照光源入射位置的不同分成侧入式背光模组与直下式背光模组两种。侧入式背光模组是将背光源LED灯条(Light bar)设于液晶面板侧后方的背板边缘，LED灯条发出的光线从导光板(LGP，Light Guide Plate)一侧的入光面进入导光板，经反射和扩散后从导光板出光面射出，再经由光学膜片组以形成面光源提供给液晶面板。
背光模组的亮度均匀性对液晶模组的显示均匀性有很大影响。现有背光模组的亮度均匀性通常按9点、13点或25点的亮度最小值与最大值的比值来定义，当该比值大于某个值时(如80％)，就认为背光模组的亮度分布达到标准或者达到基本均匀，之后即结合液晶面板组成液晶模组。这种设计方式忽略了一点，即液晶面板的穿透率分布不是完全均匀的，如图1所示，当背光模组100的亮度分布均匀时，结合液晶面板200组成液晶模组300后，液晶面板200的穿透率高的地方液晶模组300的亮度会高，液晶面板200的穿透率低的地方，液晶模组300的亮度会低。因此，即使背光模组100的亮度设计得很均匀，结合了液晶面板200后的液晶模组300的亮度仍然可能是不均匀的。
发明内容
本发明的目的在于提供一种提高液晶模组亮度均匀性的方法，通过CCD对多片液晶面板样品进行量测，统计出液晶面板的穿透率分布，根据所述液晶面板的穿透率分布计算出理想的背光模组的相对亮度分布，再根据理想的背光模组的相对亮度分布，采用光学软件设计并优化导光板网点，从而提高液晶模组亮度的均匀性，提高液晶模组的品位，改善液晶模组的视觉感受。
为实现上述目的，本发明提供一种提高液晶模组亮度均匀性的方法，包括如下步骤：
步骤1、利用CCD量测液晶面板的穿透率分布；
步骤2、根据所述液晶面板的穿透率分布计算理想的背光模组的相对亮度分布；
步骤3、根据所述理想的背光模组的相对亮度分布制作并优化背光模组的导光板网点结构。
所述步骤1包括：
步骤11、利用CCD量测液晶模组的亮度分布；
步骤12、去掉所述液晶模组中的液晶面板，量测对应的背光模组的亮度分布；
步骤13、根据所述液晶模组的亮度分布与所述背光模组的亮度分布，计算出一片液晶面板的穿透率分布；
步骤14、按上述步骤量测多片液晶面板的穿透率分布并取平均值作为液晶面板的穿透率分布。
所述步骤2中理想的背光模组的相对亮度分布为所述液晶面板的穿透率分布的倒数。
所述步骤3中利用制图软件绘制初版导光板网点，并导入光学仿真软件建立模型，再根据所述理想的背光模组的相对亮度分布，对导光板网点进行模拟和优化。
所述制图软件为solidworks，所述光学仿真软件为lighttools。
所述步骤13中一片液晶面板的穿透率分布为所述液晶模组的亮度分布与所述背光模组的亮度分布的比值。
所述步骤14中所量测的液晶面板的数量大于10片。
本发明提供一种提高液晶模组亮度均匀性的方法，包括如下步骤：
步骤1、利用CCD量测液晶面板的穿透率分布；
步骤2、根据所述液晶面板的穿透率分布计算理想的背光模组的相对亮度分布；
步骤3、根据所述理想的背光模组的相对亮度分布制作并优化背光模组的导光板网点结构；
其中，所述步骤1包括：
步骤11、利用CCD量测液晶模组的亮度分布；
步骤12、去掉所述液晶模组中的液晶面板，量测对应的背光模组的亮度分布；
步骤13、根据所述液晶模组的亮度分布与所述背光模组的亮度分布，计算出一片液晶面板的穿透率分布；
步骤14、按上述步骤量测多片液晶面板的穿透率分布并取平均值作为液晶面板的穿透率分布；
其中，所述步骤2中理想的背光模组的相对亮度分布为所述液晶面板的穿透率分布的倒数；
其中，所述步骤3中利用制图软件绘制初版导光板网点，并导入光学仿真软件建立模型，再根据所述理想的背光模组的相对亮度分布，对导光板网点进行模拟和优化。
本发明的有益效果：本发明提供的一种提高液晶模组亮度均匀性的方法，通过CCD对多片液晶面板样品进行量测，统计出液晶面板的穿透率分布，根据所述液晶面板的穿透率分布计算出理想的背光模组的相对亮度分布，再根据理想的背光模组的相对亮度分布，采用光学软件设计并优化导光板网点，从而提高液晶模组亮度的均匀性，提高液晶模组的品位，改善液晶模组的视觉感受，且该方法精确度高，速度快，在实验样品制作前即可优化出较佳的效果，从而减少制作样品和验证的次数，有效简化流程，节省成本。
附图说明
下面结合附图，通过对本发明的具体实施方式详细描述，将使本发明的技术方案及其它有益效果显而易见。
附图中，
图1为由液晶面板的穿透率分布不均匀导致的现有液晶模组亮度不均匀的示意图；
图2为本发明提高液晶模组亮度均匀性的方法的流程图；
图3为步骤11中利用CCD量测的液晶模组的亮度分布图；
图4为步骤12中利用CCD量测的背光模组的亮度分布图；
图5为步骤13得到的液晶面板的穿透率分布图；
图6为根据步骤1得到的液晶面板的穿透率分布计算得到的理想的背光模组的相对亮度分布图；
图7为利用制图软件solidworks绘制的初版导光板模型图；
图8为图7的初版导光板模型图导入光学仿真软件lighttools后的导光板模型图；
图9为导光板出光面的亮度分布优化目标示意图；
图10为优化后的导光板出光面的亮度分布示意图；
图11为对导光板网点优化后制得的液晶模组亮度均匀性的示意图。
具体实施方式
为更进一步阐述本发明所采取的技术手段极其效果，以下结合本发明的优选实施例及其附图进行详细描述。
请参阅图2，本发明涉及一种提高液晶模组亮度均匀性的方法，所述液晶模组为背光型液晶模组，其包括背光模组(Backlight module)及结合于背光模组上的液晶面板。
所述背光模组为侧入式背光模组或直下式背光模组。
所述液晶显示面板由彩色滤光膜(CF，Color Filter)基板、薄膜晶体管(TFT，Thin Film Transistor)基板、夹于彩色滤光膜基板与薄膜晶体管基板之间的液晶(LC，Liquid Crystal)材料及密封胶框(Sealant)组成。
具体的，本发明提高液晶模组亮度均匀性的方法包括以下步骤：
步骤1、利用CCD(电荷耦合元件)量测液晶面板的穿透率分布。
具体地，所述步骤1包括：
步骤11、如图3所示，利用CCD(电荷耦合元件)测液晶模组的亮度分布Lmodule。
步骤12、如图4所示，去掉所述液晶模组中的液晶面板，量测对应的背光模组的亮度分布Lbl；
步骤13、如图5所示，根据所述液晶模组的亮度分布与所述背光模组的亮度分布，计算出一片液晶面板的穿透率分布。
进一步的，计算所述液晶模组的亮度分布Lmodule与所述背光模组的亮度分布Lbl的比值，从而得到一片液晶面板的穿透率分布Tr.，即Tr.＝Lmodule/Lbl。
步骤14、按上述步骤量测多片液晶面板的穿透率分布并取平均值作为液晶面板的穿透率分布。通常不同的液晶面板之间的亮度分布会略有差异，因此需要测量多片液晶面板的穿透率分布，然后取平均值作为液晶面 板的穿透率分布。
优选的，所述步骤14中所量测的液晶面板的数量大于10片。
步骤2、请参阅图6，根据所述液晶面板的穿透率分布计算理想的背光模组的相对亮度分布。
具体地，所述理想的背光模组的相对亮度分布可取为所述液晶面板的穿透率分布的倒数，即1/Tr.。
步骤3、如图7-9所示，根据所述理想的背光模组的相对亮度分布制作并优化背光模组的导光板网点结构。
具体地，请参阅图7，首先利用制图软件绘制初版导光板网点，再如图8所示导入光学仿真软件建立模型，并按照步骤2计算得到的所述理想的背光模组的相对亮度分布，对导光板网点进行模拟和优化。图9与图10所示分别为导光板出光面的亮度分布优化目标示意图与优化后的导光板出光面的亮度分布示意图，对优化后的导光板进行组装，得到优化后的背光模组，再与相应的液晶面板组装后，得到的优化后的液晶模组的亮度分布如图11所示，从图11中可见，经过优化后的液晶模组的亮度均匀性得到了显著提高，从而提高了液晶模组的品位和视觉感受。
优选的，所述制图软件可以采用solidworks，所述光学仿真软件可以采用lighttools。
综上所述，本发明提供的一种提高液晶模组亮度均匀性的方法，通过CCD对多片液晶面板样品进行量测，统计出液晶面板的穿透率分布，根据所述液晶面板的穿透率分布计算出理想的背光模组的相对亮度分布，再根据理想的背光模组的相对亮度分布，采用光学软件设计并优化导光板网点，从而提高液晶模组亮度的均匀性，提高液晶模组的品位，改善液晶模组的视觉感受，且该方法精确度高，速度快，在实验样品制作前即可优化出较佳的效果，从而减少制作样品和验证的次数，有效简化流程，节省成本。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明权利要求的保护范围。

Claims (13)

  1. 一种提高液晶模组亮度均匀性的方法，包括如下步骤：
    步骤1、利用CCD量测液晶面板的穿透率分布；
    步骤2、根据所述液晶面板的穿透率分布计算理想的背光模组的相对亮度分布；
    步骤3、根据所述理想的背光模组的相对亮度分布制作并优化背光模组的导光板网点结构。
  2. 如权利要求1所述的提高液晶模组亮度均匀性的方法，其中，所述步骤1包括：
    步骤11、利用CCD量测液晶模组的亮度分布；
    步骤12、去掉所述液晶模组中的液晶面板，量测对应的背光模组的亮度分布；
    步骤13、根据所述液晶模组的亮度分布与所述背光模组的亮度分布，计算出一片液晶面板的穿透率分布；
    步骤14、按上述步骤量测多片液晶面板的穿透率分布并取平均值作为液晶面板的穿透率分布。
  3. 如权利要求1所述的提高液晶模组亮度均匀性的方法，其中，所述步骤2中理想的背光模组的相对亮度分布为所述液晶面板的穿透率分布的倒数。
  4. 如权利要求1所述的提高液晶模组亮度均匀性的方法，其中，所述步骤3中利用制图软件绘制初版导光板网点，并导入光学仿真软件建立模型，再根据所述理想的背光模组的相对亮度分布，对导光板网点进行模拟和优化。
  5. 如权利要求4所述的提高液晶模组亮度均匀性的方法，其中，所述制图软件为solidworks。
  6. 如权利要求4所述的提高液晶模组亮度均匀性的方法，其中，所述光学仿真软件为lighttools。
  7. 如权利要求2所述的提高液晶模组亮度均匀性的方法，其中，所述步骤13中一片液晶面板的穿透率分布为所述液晶模组的亮度分布与所述背光模组的亮度分布的比值。
  8. 如权利要求2所述的提高液晶模组亮度均匀性的方法，其中，所述步骤14中所量测的液晶面板的数量大于10片。
  9. 一种提高液晶模组亮度均匀性的方法，包括如下步骤：
    步骤1、利用CCD量测液晶面板的穿透率分布；
    步骤2、根据所述液晶面板的穿透率分布计算理想的背光模组的相对亮度分布；
    步骤3、根据所述理想的背光模组的相对亮度分布制作并优化背光模组的导光板网点结构；
    其中，所述步骤1包括：
    步骤11、利用CCD量测液晶模组的亮度分布；
    步骤12、去掉所述液晶模组中的液晶面板，量测对应的背光模组的亮度分布；
    步骤13、根据所述液晶模组的亮度分布与所述背光模组的亮度分布，计算出一片液晶面板的穿透率分布；
    步骤14、按上述步骤量测多片液晶面板的穿透率分布并取平均值作为液晶面板的穿透率分布；
    其中，所述步骤2中理想的背光模组的相对亮度分布为所述液晶面板的穿透率分布的倒数；
    其中，所述步骤3中利用制图软件绘制初版导光板网点，并导入光学仿真软件建立模型，再根据所述理想的背光模组的相对亮度分布，对导光板网点进行模拟和优化。
  10. 如权利要求9所述的提高液晶模组亮度均匀性的方法，其中，所述制图软件为solidworks。
  11. 如权利要求9所述的提高液晶模组亮度均匀性的方法，其中，所述光学仿真软件为lighttools。
  12. 如权利要求9所述的提高液晶模组亮度均匀性的方法，其中，所述步骤13中一片液晶面板的穿透率分布为所述液晶模组的亮度分布与所述背光模组的亮度分布的比值。
  13. 如权利要求9所述的提高液晶模组亮度均匀性的方法，其中，所述步骤14中所量测的液晶面板的数量大于10片。
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