WO2023221192A1 - 液晶显示面板的光学性能检测方法 - Google Patents

液晶显示面板的光学性能检测方法 Download PDF

Info

Publication number
WO2023221192A1
WO2023221192A1 PCT/CN2022/097147 CN2022097147W WO2023221192A1 WO 2023221192 A1 WO2023221192 A1 WO 2023221192A1 CN 2022097147 W CN2022097147 W CN 2022097147W WO 2023221192 A1 WO2023221192 A1 WO 2023221192A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid crystal
spectrum
crystal display
display panel
target
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2022/097147
Other languages
English (en)
French (fr)
Inventor
海博
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority to US17/758,222 priority Critical patent/US12422704B2/en
Publication of WO2023221192A1 publication Critical patent/WO2023221192A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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
    • G02F1/1306—Details
    • G02F1/1309—Repairing; Testing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/02—Testing optical properties

Definitions

  • the present application relates to the field of display, and in particular, to an optical performance detection method of a liquid crystal display panel.
  • liquid crystal cell and backlight panel are usually prepared by different manufacturers, and the optical properties of the liquid crystal cell are measured by measuring the liquid crystal module (liquid crystal cell + backlight panel).
  • the manufacturer of the LCD box cannot obtain the backlight panel in advance, so it usually uses its own backlight panel and LCD box to assemble a temporary LCD module to test the optical performance of the LCD box. In this way, there is a big difference between the test results and the actual results. .
  • the LCD box In order to obtain accurate measurement results, the LCD box needs to be transported to the backlight panel manufacturer for assembly, and then returned to the LCD box manufacturer for measurement. This is time-consuming and labor-intensive, resulting in low development efficiency of the LCD box.
  • This application provides an optical performance detection method for a liquid crystal display panel, which simplifies the optical performance detection procedure of the liquid crystal display panel, reduces measurement errors, and improves the development efficiency of the liquid crystal display panel.
  • This application provides an optical performance detection method for a liquid crystal display panel, which is used to detect the optical performance of a target liquid crystal display panel.
  • the optical performance detection method includes:
  • the first liquid crystal module including the first backlight panel and the target liquid crystal display panel;
  • the tristimulus value of the second liquid crystal module is calculated.
  • the second liquid crystal module includes the second backlight panel and the Target LCD panel;
  • the step of measuring the spectrum of the first backlight panel and the spectrum of the first liquid crystal module includes:
  • the step of calculating the transmission spectrum of the target liquid crystal display panel based on the spectrum of the first backlight panel and the spectrum of the first liquid crystal module include:
  • the corresponding spectrum when the first liquid crystal module displays the target color is divided by the spectrum of the first backlight panel to obtain the corresponding transmission spectrum when the target liquid crystal display panel displays the target color.
  • the target colors include red, green and blue
  • the corresponding spectrum when the first liquid crystal module displays the target color is divided by the first backlight panel spectrum
  • the step of obtaining the penetration spectrum of the target liquid crystal display panel includes:
  • the target colors include red, green and blue
  • the corresponding spectrum when the first liquid crystal module displays the target color is divided by the first backlight panel spectrum
  • the step of obtaining the penetration spectrum of the target liquid crystal display panel further includes:
  • the step of calculating the tristimulus value of the second liquid crystal module based on the transmission spectrum of the target liquid crystal display panel and the spectrum of the second backlight panel includes:
  • the tristimulus value of the second liquid crystal module is calculated; the tristimulus value includes the red primary color stimulus value, green Primary color stimulation value and blue primary color stimulation value, the calculation model is:
  • the X is the red primary color stimulation value
  • the Y is the green primary color stimulation value
  • the Z is the blue primary color stimulation value
  • the K is a known coefficient
  • the S( ⁇ ) is The spectrum of the backlight panel
  • the ⁇ ( ⁇ ) is the transmission spectrum of the liquid crystal display panel
  • the ⁇ is the wavelength
  • the described described It is the CIE1931 standard chromaticity observer color matching function.
  • the transmission spectrum of the target liquid crystal display panel and the spectrum of the second backlight panel are substituted into the calculation model, and the three parameters of the second liquid crystal module are calculated.
  • Stimulus value steps include:
  • the blue penetration spectrum of the target liquid crystal display panel and the spectrum of the second backlight panel are substituted into the calculation model to obtain the corresponding tristimulus value when the second liquid crystal module displays blue.
  • the transmission spectrum of the target liquid crystal display panel and the spectrum of the second backlight panel are substituted into the calculation model, and the three parameters of the second liquid crystal module are calculated.
  • the steps of stimulating value also include:
  • the white transmission spectrum of the target liquid crystal display panel and the spectrum of the second backlight panel are substituted into the calculation model to obtain the corresponding tristimulus value when the second liquid crystal module displays white.
  • the step of obtaining optical parameters corresponding to the target liquid crystal display panel based on the three stimulus values includes:
  • the Y is both the green primary color stimulation value and the brightness parameter
  • the x is the coordinate parameter of the x-axis of the chromaticity
  • the y is the coordinate parameter of the y-axis of the chromaticity.
  • the value of the brightness parameter and the value of the chromaticity parameter are calculated based on the mathematical relationship between the tristimulus value, the brightness parameter, and the chromaticity parameter.
  • the optical performance detection method further includes:
  • the transmittance, contrast, color saturation, and color gamut of the liquid crystal display panel are obtained to detect the optical performance of the liquid crystal display panel.
  • the step of obtaining the spectrum of the second backlight panel includes:
  • This application provides a method for detecting the optical performance of a liquid crystal display panel.
  • the optical parameters of the target liquid crystal display panel can be calculated under the condition that the spectrum of the second backlight panel is known.
  • the optical performance testing program shortens the optical performance testing time of LCD panels, reduces measurement errors, and improves the development efficiency of LCD panels.
  • FIG. 1 is a flow chart of an optical performance detection method of a liquid crystal display panel provided by an embodiment of the present application.
  • the human eye When the human eye views the image on the display panel, it receives the radiant flux of light, and what the human eye ultimately perceives is the color and brightness of the image.
  • the radiant flux of light is the essential attribute of light, and luminosity
  • the radiation flux passes through the human eye, based on the quantitative parameters of human vision, there is a certain conversion relationship between the radiation flux and the photometric value. Using this conversion relationship, the corresponding radiation flux can be calculated by using the conversion relationship. Photometry to evaluate the display effect of the display panel from the perspective of human visual perception.
  • Various optical parameters i.e., photometry
  • the corresponding chromaticity coordinate values x and y when the LCD panel displays different colors the corresponding brightness Y. Therefore, by obtaining the corresponding chromaticity coordinate values x and y and the corresponding brightness Y when the liquid crystal display panel displays different colors, various optical parameters of the liquid crystal display panel can be calculated, and then the optical performance of the liquid crystal display panel can be detected and evaluated.
  • Color is represented by brightness and chroma. Chroma is the property of color excluding brightness, reflecting the hue and saturation of the color. Chroma is the comprehensive amount of hue and purity, usually expressed by chromaticity coordinates.
  • the chromaticity coefficient refers to the proportion of the stimulation amount of one primary color to the total stimulation amount of the three primary colors.
  • the stimulation amount of the three primary colors is the tristimulus value, including the red primary color stimulation value. , green primary color stimulation value, blue primary color stimulation value, the mathematical relationship between the chromaticity coordinates and the corresponding tristimulus value is:
  • the X is the red primary color stimulation value
  • the Y is the green primary color stimulation value
  • the Z is the blue primary color stimulation value
  • the x is the coordinate parameter of the x-axis of the chromaticity
  • the y is the chromaticity
  • Green light is medium wave
  • blue light is short wave
  • red light is long wave. Longer or shorter electromagnetic waves cannot be seen by the human eye. Under the same light intensity conditions, the human eye is more sensitive to green and feels green. Light is brighter than red light or blue light. Based on this fact, the International Commission on Illumination (CIE) defines the green primary color stimulus value Y as the brightness value corresponding to the color.
  • CIE International Commission on Illumination
  • Tristimulus represents the degree of stimulation of the three primary colors that cause the retina to feel a certain color.
  • the tristimulus value is the number of three stimuli required to match the color. It is determined by the spectral distribution of the object and standard observer data. Based on comprehensive calculations, the specific calculation formula of the tristimulus value is:
  • K is a known coefficient, specifically the maximum spectral light visual efficiency of photopic vision (683 lumens/watt);
  • P( ⁇ ) is the spectrum of the object, is the CIE1931 standard chromaticity observer color matching function, and ⁇ is the wavelength.
  • the optical performance of the liquid crystal display panel is tested by testing the liquid crystal module composed of the liquid crystal display panel and the backlight panel, when the above calculation formula of the tristimulus value is applied to the embodiment of the present application
  • the P( ⁇ ) is the spectrum of the liquid crystal module
  • the spectrum of the liquid crystal module depends on the transmission spectrum of the liquid crystal display panel and the spectrum of the backlight panel, that is,
  • P( ⁇ ) is the spectrum of the liquid crystal module
  • S( ⁇ ) is the spectrum of the backlight panel
  • ⁇ ( ⁇ ) is the transmission spectrum of the liquid crystal display panel.
  • the tristimulus value of the target liquid crystal module can be calculated by the above calculation model (4), and then through the above The corresponding brightness Y and chromaticity coordinate values x and y can be obtained from the mathematical relationship (1), so as to detect and evaluate the optical performance of the liquid crystal display panel.
  • this application provides a method for detecting the optical performance of a liquid crystal display panel.
  • the spectrum of the target liquid crystal display panel can be calculated under the condition that the spectrum of the target backlight panel is known.
  • Optical parameters, to detect and evaluate the optical performance of the target liquid crystal display panel do not need to obtain the target backlight panel, and there is no need to transport the target liquid crystal display panel for assembly and measurement with the target backlight panel, simplifying the testing of the liquid crystal display panel
  • the optical performance testing program shortens the optical performance testing time of LCD panels, reduces measurement errors, and improves the development efficiency of LCD panels.
  • the optical performance detection method of the liquid crystal display panel provided by the embodiment of the present application will be introduced in detail through specific examples below.
  • FIG. 1 shows a flow chart of an optical performance detection method for a liquid crystal display panel provided by an embodiment of the present application.
  • the optical performance detection method includes the following steps.
  • Step B1 Measure the spectrum of the first backlight panel and the spectrum of the first liquid crystal module.
  • the first liquid crystal module includes the first backlight panel and the target liquid crystal display panel.
  • the target liquid crystal display panel is the liquid crystal display panel whose optical performance is to be tested;
  • the first backlight panel refers to a self-produced backlight panel that can be easily obtained by the liquid crystal display panel manufacturer, or other Manufacturers have put a backlight panel on the market that can be purchased or introduced;
  • the first liquid crystal module is assembled from the target liquid crystal display panel and the first backlight panel.
  • a spectrum analyzer can be used to measure the spectrum of the first backlight panel and the first liquid crystal module to obtain corresponding spectrum data.
  • the spectrum data includes: the spectrum when the first backlight panel emits light, the corresponding spectrum when the first liquid crystal module displays different colors, including the corresponding red spectrum when the first liquid crystal module displays red, and the display The green spectrum corresponding to green, and the blue spectrum corresponding to blue, and further, when the target liquid crystal display module also displays white, also includes the white spectrum corresponding to white.
  • Step B2 Calculate the transmission spectrum of the target liquid crystal display panel according to the spectrum of the first backlight panel and the spectrum of the first liquid crystal module.
  • the first liquid crystal module is assembled from the target liquid crystal display panel and the first backlight panel.
  • the spectrum of the first liquid crystal module, the transmission spectrum of the target liquid crystal display panel and the first The spectrum of the backlight panel satisfies the above formula (3). Therefore, the transmission spectrum ⁇ ( ⁇ ) of the target liquid crystal display panel can be divided by the spectrum P1( ⁇ ) of the first liquid crystal module by the first backlight
  • the spectrum S1( ⁇ ) of the plate that is,
  • the transmission spectrum ⁇ ( ⁇ ) of the target liquid crystal display panel includes the red transmission spectrum ⁇ R ( ⁇ ) corresponding to the red light penetrating through the target liquid crystal display panel, and the green transmission spectrum corresponding to the green light penetrating ⁇ G ( ⁇ ), and the blue transmission spectrum ⁇ B ( ⁇ ) corresponding to the penetrating blue light, and further includes the white transmission spectrum ⁇ W ( ⁇ ) corresponding to the penetrating white light.
  • the red transmission spectrum ⁇ R ( ⁇ ) is obtained by dividing the red spectrum of the first liquid crystal module by the spectrum of the first backlight panel
  • the green transmission spectrum ⁇ G ( ⁇ ) is obtained by dividing the red spectrum of the first liquid crystal module by the spectrum of the first backlight panel.
  • the green spectrum of the liquid crystal module is divided by the spectrum of the first backlight panel.
  • the blue penetration spectrum ⁇ B ( ⁇ ) is obtained by dividing the blue spectrum of the first liquid crystal module by the first backlight panel.
  • the white transmission spectrum ⁇ W ( ⁇ ) is obtained by dividing the white spectrum of the first liquid crystal module by the spectrum of the first backlight panel.
  • Step B3 Obtain the spectrum of the second backlight panel.
  • the second backlight panel is a backlight panel that is assembled into a second liquid crystal module after the target liquid crystal display panel comes out, and then optically inspects and evaluates the target liquid crystal display panel.
  • the second liquid crystal display panel can also be It is called a target liquid crystal display panel, and the second backlight panel may also be called a target backlight panel.
  • the second backlight panel is usually manufactured by a backlight panel manufacturer.
  • the obtaining the spectrum of the second backlight panel may be to contact the manufacturer of the second backlight panel and obtain the spectrum data provided by the second backlight panel. It is also possible to obtain the second backlight panel, measure the second backlight panel, and obtain spectrum data of the second backlight panel. Let the spectrum data of the second backlight panel be S2( ⁇ ).
  • Step B4 Calculate the tristimulus value of the second liquid crystal module according to the penetration spectrum of the target liquid crystal display panel and the spectrum of the second backlight panel.
  • the second liquid crystal module includes the second backlight panel. and the target liquid crystal display panel.
  • the tristimulus value of the second liquid crystal module is calculated. Specifically, it includes substituting the red penetration spectrum ⁇ R ( ⁇ ) and the spectrum S2 ( ⁇ ) into the above calculation model (4) to obtain the corresponding tristimulus values X R and Y when the second liquid crystal module displays red.
  • Step B5 Obtain the optical parameters corresponding to the target liquid crystal display panel according to the three stimulus values to detect the optical performance of the target liquid crystal display panel.
  • the optical parameters of the target liquid crystal display panel include the corresponding brightness when the target liquid crystal display panel displays different colors, the corresponding chromaticity when displaying different colors, the transmittance, contrast, color saturation, etc. of the target liquid crystal display panel. .
  • step B4 From the tristimulus value data calculated in step B4, the corresponding red brightness Y R when the target liquid crystal display panel displays red, the corresponding green brightness Y G when the target liquid crystal display panel displays green, and the corresponding blue brightness Y B when the target liquid crystal display panel displays blue , the corresponding white brightness Y W when displaying white.
  • corresponding tristimulus values X W , Y W , and Z W when the second liquid crystal module displays white are substituted into the above mathematical relationship (1) to obtain the corresponding tristimulus values when the target liquid crystal display panel penetrates white light.
  • optical parameters such as transmittance Tr, color gamut NTSC, contrast, and color saturation of the liquid crystal display panel are calculated.
  • the optical performance of the target liquid crystal display panel is evaluated.
  • the optical parameters measured by the optical performance detection method of the liquid crystal display panel provided by the existing technology and the embodiments of the present application are compared, so as to evaluate the optical performance provided by the embodiments of the present application.
  • Test methods are used to testify.
  • the basic optical parameters of the target liquid crystal display panel measured using the existing technology, the basic optical parameters of the target liquid crystal display panel measured using the optical performance detection method provided by the embodiment of the present application, and the actual measurement of the target liquid crystal module are obtained.
  • Basic optical parameters are compared.
  • the optical performance detection method of the liquid crystal display panel provided by the prior art is to assemble the target liquid crystal display panel and the backlight panel produced by the panel manufacturer into a liquid crystal module for measurement.
  • the actual measurement target liquid crystal module is to measure the target liquid crystal display panel.
  • the liquid crystal display panel and the target backlight panel are assembled into a target liquid crystal display device for measurement.
  • Table 1 shows the basic optical parameters of the target liquid crystal display panel measured using the existing technology, the basic optical parameters of the target liquid crystal display panel measured using the optical performance detection method provided by the embodiment of the present application, and the results obtained by actually measuring the target liquid crystal module. Comparison table of basic optical parameters.
  • Table 2 shows the difference between the basic optical parameters measured using the prior art and the actual measured basic optical parameters in Table 1, and the difference between the basic optical parameters measured using the optical performance detection method provided by the embodiments of the present application and the actual measured The difference comparison table of the obtained basic optical parameters.
  • the embodiments of the present application provide an optical performance detection method for a liquid crystal display panel.
  • the optical performance detection method establishes a simulation calculation model and uses the simulation calculation model under the condition that the spectrum of the target backlight panel is known.
  • the optical parameters of the target LCD panel can be calculated, and the optical performance of the target LCD panel can be detected and evaluated without obtaining the target backlight panel, and there is no need to transport the target LCD panel to interact with the target backlight panel.
  • Assembly measurement simplifies the optical performance testing procedure of the LCD panel, shortens the optical performance testing time of the LCD panel, reduces the measurement error, and improves the development efficiency of the LCD panel.

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Analytical Chemistry (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)

Abstract

一种液晶显示面板的光学性能检测方法，包括：量测第一背光板的频谱和第一液晶模组的频谱；计算得到目标液晶显示面板的穿透频谱；获取第二背光板的频谱；计算得到第二液晶模组的三刺激值；根据三刺激值得到目标液晶显示面板对应的光学参数，以检测目标液晶显示面板的光学性能。

Description

液晶显示面板的光学性能检测方法 技术领域
本申请涉及显示领域，尤其涉及一种液晶显示面板的光学性能检测方法。
背景技术
对于液晶显示装置，液晶盒和背光板通常由不同的厂家制备，而液晶盒的光学性能则是通过对液晶模组(液晶盒+背光板)进行测量得到。
液晶盒的生产厂家无法事先获取背光板，因此通常采用自家生产的背光板和液晶盒组装成临时液晶模组，对液晶盒的光学性能进行检测，这样检测的结果与实际结果存在较大的差异。为了获取准确的测量结果，就需要将液晶盒运输至背光板的生产厂家进行组装，然后再返回液晶盒的生产厂家进行测量，这样费时费力，导致液晶盒的开发效率低。
技术问题
本申请提供一种液晶显示面板的光学性能检测方法，简化了液晶显示面板的光学性能检测程序，减小了测量误差，提高了液晶显示面板的开发效率。
技术解决方案
本申请提供一种液晶显示面板的光学性能检测方法，用于检测目标液晶显示面板的光学性能，所述光学性能检测方法包括：
量测第一背光板的频谱和第一液晶模组的频谱，所述第一液晶模组包括所述第一背光板和所述目标液晶显示面板；
根据所述第一背光板的频谱和所述第一液晶模组的频谱，计算得到所述目标液晶显示面板的穿透频谱；
获取第二背光板的频谱；
根据所述目标液晶显示面板的穿透频谱和所述第二背光板的频谱，计算得到第二液晶模组的三刺激值，所述第二液晶模组包括所述第二背光板和所述目标液晶显示面板；
根据所述三刺激值得到所述目标液晶显示面板对应的光学参数，以检测所 述目标液晶显示面板的光学性能。
可选地，在本申请的一些实施例中，所述量测第一背光板的频谱和第一液晶模组的频谱的步骤，包括：
量测所述第一背光板的频谱；
量测所述第一液晶模组显示目标颜色时对应的频谱。
可选地，在本申请的一些实施例中，所述根据所述第一背光板的频谱和所述第一液晶模组的频谱，计算得到所述目标液晶显示面板的穿透频谱的步骤，包括：
用所述第一液晶模组显示目标颜色时对应的频谱，除以所述第一背光板的频谱，得到所述目标液晶显示面板显示目标颜色时对应的穿透频谱。
可选地，在本申请的一些实施例中，所述目标颜色包括红色、绿色和蓝色，所述用所述第一液晶模组显示目标颜色时对应的频谱除以所述第一背光板的频谱，得到所述目标液晶显示面板的穿透频谱的步骤，包括：
用所述液晶模组显示红色时对应的频谱除以所述第一背光板的频谱，得到所述目标液晶显示面板穿透红色光线时对应的红色穿透频谱；
用所述液晶模组显示绿色时对应的频谱除以所述第一背光板的频谱，得到所述目标液晶显示面板穿透绿色光线时对应的绿色穿透频谱；
用所述液晶模组显示蓝色时对应的频谱除以所述第一背光板的频谱，得到所述目标液晶显示面板穿透蓝色光线时对应的蓝色穿透频谱；
可选地，在本申请的一些实施例中，所述目标颜色包括红色、绿色和蓝色，所述用所述第一液晶模组显示目标颜色时对应的频谱除以所述第一背光板的频谱，得到所述目标液晶显示面板的穿透频谱的步骤，还包括：
用所述液晶模组显示白色时对应的频谱除以所述第一背光板的频谱，得到所述目标液晶显示面板穿透白色光线时对应的白色穿透频谱。
可选地，在本申请的一些实施例中，所述根据所述目标液晶显示面板的穿透频谱和第二背光板的频谱，计算得到第二液晶模组的三刺激值的步骤，包括：
将所述目标液晶显示面板的穿透频谱和所述第二背光板的频谱代入计算模型，计算得到所述第二液晶模组的三刺激值；所述三刺激值包括红原色刺激值、绿原色刺激值和蓝原色刺激值，所述计算模型为：
Figure PCTCN2022097147-appb-000001
Figure PCTCN2022097147-appb-000002
Figure PCTCN2022097147-appb-000003
其中，所述X为所述红原色刺激值，所述Y为所述绿原色刺激值，所述Z为所述蓝原色刺激值，所述K为已知系数，所述S(λ)为背光板的频谱，所述ρ(λ)为液晶显示面板的穿透频谱，所述λ为波长，所述
Figure PCTCN2022097147-appb-000004
所述
Figure PCTCN2022097147-appb-000005
所述
Figure PCTCN2022097147-appb-000006
为CIE1931标准色度观察者色匹配函数。
可选地，在本申请的一些实施例中，所述将所述目标液晶显示面板的穿透频谱和所述第二背光板的频谱代入计算模型，计算得到所述第二液晶模组的三刺激值的步骤，包括：
所述将所述目标液晶显示面板的红色穿透频谱和所述第二背光板的频谱代入所述计算模型，得到所述第二液晶模组显示红色时对应的三刺激值；
所述将所述目标液晶显示面板的绿色穿透频谱和所述第二背光板的频谱代入所述计算模型，得到所述第二液晶模组显示绿色时对应的三刺激值；
所述将所述目标液晶显示面板的蓝色穿透频谱和所述第二背光板的频谱代入所述计算模型，得到所述第二液晶模组显示蓝色时对应的三刺激值。
可选地，在本申请的一些实施例中，所述将所述目标液晶显示面板的穿透频谱和所述第二背光板的频谱代入计算模型，计算得到所述第二液晶模组的三刺激值的步骤，还包括：
所述将所述目标液晶显示面板的白色穿透频谱和所述第二背光板的频谱代入所述计算模型，得到所述第二液晶模组显示白色时对应的三刺激值。
可选地，在本申请的一些实施例中，所述根据所述三刺激值得到所述目标液晶显示面板对应的光学参数的步骤，包括：
根据所述三刺激值与亮度参数、色度参数之间的数学关系，计算出所述亮度参数的值和所述色度参数的值，所述数学关系为：
x＝X/(X+Y+Z)
y＝Y/(X+Y+Z)
其中，所述Y既是所述绿原色刺激值，也是亮度参数，所述x为色度的x 轴的坐标参数，所述y为所述色度的y轴的坐标参数。
可选地，在本申请的一些实施例中，在所述根据所述三刺激值与亮度参数、色度参数之间的数学关系，计算出所述亮度参数的值和所述色度参数的值的步骤之后，所述光学性能检测方法还包括：
根据所述亮度参数的值和所述色度参数的值，得到所述液晶显示面板的穿透率、对比度、颜色饱和度、色域，以检测所述液晶显示面板的光学性能。
可选地，在本申请的一些实施例中，所述获取第二背光板的频谱的步骤，包括：
直接获取所述第二背光板的频谱数据；
或者，并对所述第二背光板进行测量，获取所述第二背光板的频谱数据。
有益效果
本申请提供了一种液晶显示面板的光学性能检测方法，通过建立仿真计算模型，利用该仿真计算模型，在已知第二背光板的频谱的条件下即可计算出目标液晶显示面板的光学参数，对目标液晶显示面板的光学性能进行检测评估，无需获取第二背光板，更不需要将所述目标液晶显示面板进行运输以与所述第二背光板进行组装测量，简化了液晶显示面板的光学性能检测程序，缩短了液晶显示面板的光学性能检测时间，减小了测量误差，提高了液晶显示面板的开发效率。
附图说明
下面结合附图，通过对本申请的具体实施方式详细描述，将使本申请的技术方案及其它有益效果显而易见。
图1为本申请实施例提供的液晶显示面板的光学性能检测方法的流程图。
本发明的实施方式
人眼观看显示面板的图像画面，接收到的是光线的辐射通量，而人眼最终感受到的是图像画面的颜色和亮度等光度量，光线的辐射通量是光线的本质属性，光度量则是辐射通量经过人眼作用后，基于人眼视觉的量化参数，辐射通量和光度量之间存在一定的换算关系，利用其换算关系，即可通过所述辐射通量计算的得到对应的光度量，从而从人眼视觉感知角度评估显示面板的显示效 果。
体现液晶显示面板的光学性能的各项光学参数(即光度量)都可以通过其基本光学参数—液晶显示面板显示不同颜色时对应的色度坐标值x和y、以及对应的亮度Y计算得到，因此，获取液晶显示面板显示不同颜色时对应的色度坐标值x和y、以及对应的亮度Y，即可计算得到液晶显示面板的各项光学参数，进而检测评价液晶显示面板的光学性能。
颜色是由亮度和色度共同表示的，色度是不包括亮度在内的颜色的性质，反应颜色的色调和饱和度，色度为色相和纯度的综合量，通常用色度坐标进行表示。在CIE1931-RGB色彩体系中，色度系数是指一种原色的刺激量在三种原色的总刺激量中所占的比例，三种原色的刺激量即为三刺激值，包括红原色刺激值、绿原色刺激值、蓝原色刺激值，色度坐标与对应的三刺激值之间的数学关系式为：
x＝X/(X+Y+Z)
y＝Y/(X+Y+Z)        (1)
其中，所述X为红原色刺激值，所述Y为绿原色刺激值，所述Z为蓝原色刺激值，所述x为色度的x轴的坐标参数，所述y为所述色度的y轴的坐标参数。绿色光线为中波，蓝色光线为短波，红色光线为长波，而更长或者更短的电磁波人眼都看不到，在相同光照强度的条件下，人眼对绿色更为敏感，感受绿色光线要比红色光线或者蓝色光线更亮，基于这一事实，国际照明委员会CIE定义绿原色刺激值Y同时为颜色对应的亮度值。
由上述数学关系式(1)可知，若获取了待测液晶显示面板显示不同颜色时对应的三刺激值，即得到了液晶显示面板显示不同颜色时对应的亮度Y，即可利用上述数学关系式计算得到对应的色度坐标值x和y，进而计算得到液晶显示面板的各项光学参数，检测评价液晶显示面板的光学性能。
三刺激表示引起视网膜对某种颜色感觉的三种原色的刺激程度，具体到物体的颜色，三刺激值为匹配该颜色所需的三种刺激的数量，由物体的光谱分布和标准观察者数据综合计算而来的，三刺激值的具体计算公式为：
Figure PCTCN2022097147-appb-000007
其中，K为已知系数，具体为明视觉最大光谱光视效能(683流明/瓦)；P(λ)为所述物体的频谱，
Figure PCTCN2022097147-appb-000008
为CIE1931标准色度观察者色匹配函数，λ为波长。
对于液晶显示面板，由于液晶显示面板的光学性能是通过对由所述液晶显示面板和背光板构成的液晶模组进行检测的，因此，当将上述三刺激值的计算公式应用于本申请实施例时，所述P(λ)即为所述液晶模组的频谱，而所述液晶模组的频谱又取决于所述液晶显示面板的穿透频谱和所述背光板的频谱，即，
P(λ)＝S(λ)·ρ(λ)     (3)
其中，P(λ)为液晶模组的频谱，S(λ)为背光板的频谱，所述ρ(λ)为液晶显示面板的穿透频谱。
将上述公式(3)代入上述计算公式(2)中，得到液晶模组对应的三刺激值的计算模型：
Figure PCTCN2022097147-appb-000009
只需获取待检测的目标液晶显示面板的穿透频谱、以及目标背光板的频谱，无需获取目标背光板，即可由上述计算模型(4)计算出目标液晶模组的三刺激值，进而通过上述数学关系式(1)即可得到对应的亮度Y、色度坐标值x和y，从而检测评价液晶显示面板的光学性能。
基于上述原理，本申请提供一种液晶显示面板的光学性能检测方法，通过建立仿真计算模型，利用该仿真计算模型，在已知目标背光板的频谱的条件下即可计算出目标液晶显示面板的光学参数，对目标液晶显示面板的光学性能进行检测评估，无需获取目标背光板，更不需要将所述目标液晶显示面板进行运输以与所述目标背光板进行组装测量，简化了液晶显示面板的光学性能检测程序，缩短了液晶显示面板的光学性能检测时间，减小了测量误差，提高了液晶 显示面板的开发效率。下面将通过具体的实施例对本申请实施例提供的液晶显示面板的光学性能检测方法进行详细的介绍。
在一种实施例中，请参照图1，图1示出了本申请实施例提供的液晶显示面板的光学性能检测方法的流程图，所述光学性能检测方法包括以下步骤。
步骤B1、量测第一背光板的频谱和第一液晶模组的频谱，所述第一液晶模组包括所述第一背光板和所述目标液晶显示面板。
在本申请的实施例中，所述目标液晶显示面板即为待检测其光学性能的液晶显示面板；所述第一背光板是指液晶显示面板厂家能够容易获取的自家生产的背光板，或其他厂家已经投入市场可被购入或引入的背光板；所述第一液晶模组由所述目标液晶显示面板和所述第一背光板组装而成。可采用频谱分析仪对所述第一背光板和所述第一液晶模组进行频谱测量，得到对应的频谱数据。所述频谱数据包括：所述第一背光板发光时的频谱，所述第一液晶模组在显示不同颜色时对应的频谱，包括所述第一液晶模组显示红色时对应的红色频谱、显示绿色时对应的绿色频谱、以及显示蓝色时对应的蓝色频谱，进一步，当所述目标液晶显示模组还显示白色时，还包括显示白色时对应的白色频谱。
步骤B2、根据所述第一背光板的频谱和所述第一液晶模组的频谱，计算得到所述目标液晶显示面板的穿透频谱。
所述第一液晶模组由所述目标液晶显示面板和所述第一背光板组装而成，所述第一液晶模组的频谱、所述目标液晶显示面板的穿透频谱和所述第一背光板的频谱满足上述公式(3)，因此，所述目标液晶显示面板的穿透频谱ρ(λ)具体可通过所述第一液晶模组的频谱P1(λ)除以所述第一背光板的频谱S1(λ)，即，
ρ(λ)＝P1(λ)/S1(λ)      (5)
得到。同样的，所述目标液晶显示面板的穿透频谱ρ(λ)包括所述目标液晶显示面板穿透红色光线对应的红色穿透频谱ρ R(λ)、穿透绿色光线对应的绿色穿透频谱ρ G(λ)、以及穿透蓝色光线对应的蓝色穿透频谱ρ B(λ)，进一步，还包括穿透白色光线对应的白色穿透频谱ρ W(λ)。所述红色穿透频谱ρ R(λ)由所述第一液晶模组的红色频谱除以所述第一背光板的频谱得到，所述绿色穿透频谱ρ G(λ)由所述第一液晶模组的绿色频谱除以所述第一背光板的频谱得到，所述蓝色穿透频谱ρ B(λ)由所述第一液晶模组的蓝色频谱除以所述第一背光板的频谱得到， 所述白色穿透频谱ρ W(λ)由所述第一液晶模组的白色频谱除以所述第一背光板的频谱得到。
步骤B3、获取第二背光板的频谱。
所述第二背光板为所述目标液晶显示面板出场后，一起组装成第二液晶模组，进而对所述目标液晶显示面板进行光学检测评估的背光板，所述第二液晶显示面板也可称为目标液晶显示面板，所述第二背光板也可称为目标背光板。所述第二背光板通常由背光板生产厂家生产制造，所述获取第二背光板的频谱可以是联系所述第二背光板的生产厂家，获取其提供所述第二背光板的频谱数据，也可以是获取所述第二背光板，并对所述第二背光板进行测量，获取所述第二背光板的频谱数据。记所述第二背光板的频谱数据为S2(λ)。
步骤B4、根据所述目标液晶显示面板的穿透频谱和所述第二背光板的频谱，计算得到第二液晶模组的三刺激值，所述第二液晶模组包括所述第二背光板和所述目标液晶显示面板。
将所述目标液晶显示面板的穿透频谱ρ(λ)和所述第二背光板的频谱S(λ)代入上述计算模型(4)，计算出所述第二液晶模组的三刺激值。具体包括将所述红色穿透频谱ρ R(λ)和所述频谱S2(λ)代入上述计算模型(4)得到所述第二液晶模组显示红色时的对应的三刺激值X R、Y R、Z R；将所述绿色穿透频谱ρ G(λ)和所述频谱S2(λ)代入上述计算模型(4)得到所述第二液晶模组显示绿色时的对应的三刺激值X G、Y G、Z G；将所述蓝色穿透频谱ρ B(λ)和所述频谱S2(λ)代入上述计算模型(4)得到所述第二液晶模组显示蓝色时的对应的三刺激值X B、Y B、Z B。进一步，将所述白色穿透频谱ρ W(λ)和所述频谱S2(λ)代入上述计算模型(4)得到所述第二液晶模组显示白色时的对应的三刺激值X W、Y W、Z W。
步骤B5、根据所述三刺激值得到所述目标液晶显示面板对应的光学参数，以检测所述目标液晶显示面板的光学性能。
所述目标液晶显示面板的光学参数包括所述目标液晶显示面板显示不同颜色时对应的亮度、显示不同颜色时对应的色度，所述目标液晶显示面板的穿透率、对比度、颜色饱和度等。
由步骤B4中计算出的三刺激值数据即得所述目标液晶显示面板显示红色时对应的红色亮度Y R、显示绿色时对应的绿色亮度Y G、显示蓝色时对应的蓝 色亮度Y B、显示白色时对应的白色亮度Y W。
将所述第二液晶模组显示红色时的对应的三刺激值X R、Y R、Z R代入上述数学关系式(1)，得到所述目标液晶显示面板穿透红色光线时对应的色度x轴坐标值x R＝X R/(X R+Y R+Z R)，色度y轴坐标值y R＝Y R/(X R+Y R+Z R)；将所述第二液晶模组显示绿色时的对应的三刺激值X G、Y G、Z G代入上述数学关系式(1)，得到所述目标液晶显示面板穿透绿色光线时对应的色度x轴坐标值x G＝X G/(X G+Y G+Z G)，色度y轴坐标值y G＝Y G/(X G+Y G+Z G)；将所述第二液晶模组显示蓝色时的对应的三刺激值X B、Y B、Z B代入上述数学关系式(1)，得到所述目标液晶显示面板穿透蓝色光线时对应的色度x轴坐标值x B＝X B/(X B+Y B+Z B)，色度y轴坐标值y B＝Y B/(X B+Y B+Z B)。进一步，将所述第二液晶模组显示白色时的对应的三刺激值X W、Y W、Z W代入上述数学关系式(1)，得到所述目标液晶显示面板穿透白色光线时对应的色度x轴坐标值x W＝X W/(X W+Y W+Z W)，色度y轴坐标值y W＝Y W/(X W+Y W+Z W)。
进一步，根据所述目标液晶显示面板的亮度参数和色度参数，计算得到所述液晶显示面板的穿透率Tr、色域NTSC、对比度、颜色饱和度等光学参数。
依据上述目标液晶显示面板的光学参数，对所述目标液晶显示面板的光学性能进行评估。
下面以255灰阶下的显示画面为例，对现有技术和本申请实施例提供的液晶显示面板的光学性能检测方法测得的光学参数进行比较，以对本申请实施例提供的所述光学性能检测方法进行作证。具体为将采用现有技术测得的目标液晶显示面板的基本光学参数、采用本申请实施例提供的光学性能检测方法测得的目标液晶显示面板的基本光学参数、以及实际测量目标液晶模组得到的基本光学参数进行比较。所述现有技术提供的液晶显示面板的光学性能检测方法为将目标液晶显示面板与面板生产厂自己生产的背光板组装成液晶模组进行测量，所述实际测量目标液晶模组为对由目标液晶显示面板和目标背光板组装成的目标液晶显示装置进行测量。
表1为采用现有技术测得的目标液晶显示面板的基本光学参数、采用本申请实施例提供的光学性能检测方法测得的目标液晶显示面板的基本光学参数、以及实际测量目标液晶模组得到的基本光学参数的比对表。
表1
Figure PCTCN2022097147-appb-000010
表2为表1中，采用现有技术测得的基本光学参数与实际测量得到的基本光学参数的差值，和采用本申请实施例提供的光学性能检测方法测得的基本光学参数与实际测量得到的基本光学参数的差值比对表。
表2
Figure PCTCN2022097147-appb-000011
由表1和表2的数据可知，采用现有技术测量得到的目标液晶显示面板的基本光学参数与实际测量目标液晶模组得到的光学参数存在较明显的差异，而采用本申请实施例提供的所述光学性能检测方法对目标液晶显示面板的基本光学参数进行测量得到的数据，与实际测量目标液晶模组得到的数据相接近，差异性极小。因此，本申请实施例相比于现有技术，提高了测量目标液晶显示面板的光学参数的准确性，减小了测量误差，进而提高了对目标液晶显示面板的光学性能评估的准确性，提高了液晶显示面板的开发良率。
综上所述，本申请实施例提供了一种液晶显示面板的光学性能检测方法，该光学性能检测方法通过建立仿真计算模型，利用该仿真计算模型，在已知目 标背光板的频谱的条件下即可计算出目标液晶显示面板的光学参数，对目标液晶显示面板的光学性能进行检测评估，无需获取目标背光板，更不需要将所述目标液晶显示面板进行运输以与所述目标背光板进行组装测量，简化了液晶显示面板的光学性能检测程序，缩短了液晶显示面板的光学性能检测时间，减小了测量误差，提高了液晶显示面板的开发效率。
以上对本申请实施例所提供的液晶显示面板的光学性能检测方法进行了详细介绍，本文中应用了具体个例对本申请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申请的方法及其核心思想；同时，对于本领域的技术人员，依据本申请的思想，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申请的限制。

Claims (11)

  1. 一种液晶显示面板的光学性能检测方法，用于检测目标液晶显示面板的光学性能，所述光学性能检测方法包括：
    量测第一背光板的频谱和第一液晶模组的频谱，其中，所述第一液晶模组包括所述第一背光板和所述目标液晶显示面板；
    根据所述第一背光板的频谱和所述第一液晶模组的频谱，计算得到所述目标液晶显示面板的穿透频谱；
    获取第二背光板的频谱；
    根据所述目标液晶显示面板的穿透频谱和所述第二背光板的频谱，计算得到第二液晶模组的三刺激值，其中，所述第二液晶模组包括所述第二背光板和所述目标液晶显示面板；以及
    根据所述三刺激值得到所述目标液晶显示面板对应的光学参数，以检测所述目标液晶显示面板的光学性能。
  2. 如权利要求1所述的光学性能检测方法，其中，所述量测第一背光板的频谱和第一液晶模组的频谱的步骤，包括：
    量测所述第一背光板的频谱；以及
    量测所述第一液晶模组显示目标颜色时对应的频谱。
  3. 如权利要求2所述的光学性能检测方法，其中，所述根据所述第一背光板的频谱和所述第一液晶模组的频谱，计算得到所述目标液晶显示面板的穿透频谱的步骤，包括：
    用所述第一液晶模组显示目标颜色时对应的频谱，除以所述第一背光板的频谱，得到所述目标液晶显示面板显示目标颜色时对应的穿透频谱。
  4. 如权利要求3所述的光学性能检测方法，其中，所述目标颜色包括红色、绿色和蓝色，所述用所述第一液晶模组显示目标颜色时对应的频谱除以所述第一背光板的频谱，得到所述目标液晶显示面板的穿透频谱的步骤，包括：
    用所述液晶模组显示红色时对应的频谱除以所述第一背光板的频谱，得到所述目标液晶显示面板穿透红色光线时对应的红色穿透频谱；
    用所述液晶模组显示绿色时对应的频谱除以所述第一背光板的频谱，得到所述目标液晶显示面板穿透绿色光线时对应的绿色穿透频谱；以及
    用所述液晶模组显示蓝色时对应的频谱除以所述第一背光板的频谱，得到所述目标液晶显示面板穿透蓝色光线时对应的蓝色穿透频谱。
  5. 如权利要求4所述的光学性能检测方法，其中，所述目标颜色包括红色、绿色和蓝色，所述用所述第一液晶模组显示目标颜色时对应的频谱除以所述第一背光板的频谱，得到所述目标液晶显示面板的穿透频谱的步骤，还包括：
    用所述液晶模组显示白色时对应的频谱除以所述第一背光板的频谱，得到所述目标液晶显示面板穿透白色光线时对应的白色穿透频谱。
  6. 如权利要求3所述的光学性能检测方法，其中，所述根据所述目标液晶显示面板的穿透频谱和第二背光板的频谱，计算得到第二液晶模组的三刺激值的步骤，包括：
    将所述目标液晶显示面板的穿透频谱和所述第二背光板的频谱代入计算模型，计算得到所述第二液晶模组的三刺激值；所述三刺激值包括红原色刺激值、绿原色刺激值和蓝原色刺激值，所述计算模型为：
    Figure PCTCN2022097147-appb-100001
    Figure PCTCN2022097147-appb-100002
    Figure PCTCN2022097147-appb-100003
    其中，所述X为所述红原色刺激值，所述Y为所述绿原色刺激值，所述Z为所述蓝原色刺激值，所述K为已知系数，所述S(λ)为背光板的频谱，所述ρ(λ)为液晶显示面板的穿透频谱，所述λ为波长，所述
    Figure PCTCN2022097147-appb-100004
    所述
    Figure PCTCN2022097147-appb-100005
    所述
    Figure PCTCN2022097147-appb-100006
    为CIE1931标准色度观察者色匹配函数。
  7. 如权利要求6所述的光学性能检测方法，其中，所述将所述目标液晶显示面板的穿透频谱和所述第二背光板的频谱代入计算模型，计算得到所述第二液晶模组的三刺激值的步骤，包括：
    所述将所述目标液晶显示面板的红色穿透频谱和所述第二背光板的频谱代入所述计算模型，得到所述第二液晶模组显示红色时对应的三刺激值；
    所述将所述目标液晶显示面板的绿色穿透频谱和所述第二背光板的频谱代入所述计算模型，得到所述第二液晶模组显示绿色时对应的三刺激值；以及
    所述将所述目标液晶显示面板的蓝色穿透频谱和所述第二背光板的频谱 代入所述计算模型，得到所述第二液晶模组显示蓝色时对应的三刺激值。
  8. 如权利要求6所述的光学性能检测方法，其中，所述将所述目标液晶显示面板的穿透频谱和所述第二背光板的频谱代入计算模型，计算得到所述第二液晶模组的三刺激值的步骤，还包括：
    所述将所述目标液晶显示面板的白色穿透频谱和所述第二背光板的频谱代入所述计算模型，得到所述第二液晶模组显示白色时对应的三刺激值。
  9. 如权利要求6所述的光学性能检测方法，其中，所述根据所述三刺激值得到所述目标液晶显示面板对应的光学参数的步骤，包括：
    根据所述三刺激值与亮度参数、色度参数之间的数学关系，计算出所述亮度参数的值和所述色度参数的值，所述数学关系为：
    x＝X/(X+Y+Z)
    y＝Y/(X+Y+Z)
    其中，所述Y既是所述绿原色刺激值，也是亮度参数，所述x为色度的x轴的坐标参数，所述y为所述色度的y轴的坐标参数。
  10. 如权利要求9所述的光学性能检测方法，其中，在所述根据所述三刺激值与亮度参数、色度参数之间的数学关系，计算出所述亮度参数的值和所述色度参数的值的步骤之后，所述光学性能检测方法还包括：
    根据所述亮度参数的值和所述色度参数的值，得到所述液晶显示面板的穿透率、对比度、颜色饱和度、色域，以检测所述液晶显示面板的光学性能。
  11. 如权利要求1所述的光学性能检测方法，其中，所述获取第二背光板的频谱的步骤，包括：
    直接获取所述第二背光板的频谱数据；
    或者，对所述第二背光板进行测量，获取所述第二背光板的频谱数据。
PCT/CN2022/097147 2022-05-17 2022-06-06 液晶显示面板的光学性能检测方法 Ceased WO2023221192A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US17/758,222 US12422704B2 (en) 2022-05-17 2022-06-06 Optical property detecting method of liquid crystal display panel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210539457.4A CN114923672B (zh) 2022-05-17 2022-05-17 一种液晶显示面板的光学性能检测方法
CN202210539457.4 2022-05-17

Publications (1)

Publication Number Publication Date
WO2023221192A1 true WO2023221192A1 (zh) 2023-11-23

Family

ID=82808490

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/097147 Ceased WO2023221192A1 (zh) 2022-05-17 2022-06-06 液晶显示面板的光学性能检测方法

Country Status (3)

Country Link
US (1) US12422704B2 (zh)
CN (1) CN114923672B (zh)
WO (1) WO2023221192A1 (zh)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1773301A (zh) * 2004-11-11 2006-05-17 三星电子株式会社 显示面板用检查装置及该显示面板用检查装置的检查方法
US20110261263A1 (en) * 2010-04-21 2011-10-27 University Of Central Florida Led backlight apparatus and method
CN103940832A (zh) * 2013-01-17 2014-07-23 北京兆维电子(集团)有限责任公司 一种应用于平板显示屏自动光学检测的打光装置
CN105424726A (zh) * 2016-01-12 2016-03-23 苏州富鑫林光电科技有限公司 基于机器视觉的发光面板检测方法
CN105954893A (zh) * 2016-05-30 2016-09-21 康佳集团股份有限公司 一种液晶光学模组的配置方法及检测装置
CN109445134A (zh) * 2018-11-28 2019-03-08 深圳同兴达科技股份有限公司 一种自动量测液晶显示模组光学数据的系统及方法
CN109901314A (zh) * 2019-03-26 2019-06-18 深圳市华星光电技术有限公司 光学检测装置及光学检测方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006113138A (ja) * 2004-10-12 2006-04-27 Seiko Epson Corp 輝度情報測定方法、輝度情報測定装置、画質調整方法および画質調整装置
JP5260320B2 (ja) * 2006-02-15 2013-08-14 ドウジン セミケム カンパニー リミテッド 平板表示装置の検査システム及び検査方法
KR20090047205A (ko) * 2007-11-07 2009-05-12 삼성에스디아이 주식회사 액정 표시장치
US8441643B2 (en) * 2010-07-13 2013-05-14 Apple Inc. Manufacturing and testing techniques for electronic displays
WO2012132895A1 (ja) * 2011-03-29 2012-10-04 東レ株式会社 エッジライト型バックライト用白色反射フィルム及びそれを用いた液晶ディスプレイ用バックライト
TWI499788B (zh) * 2013-04-29 2015-09-11 E Ink Holdings Inc 畫素陣列基板檢測方法及畫素陣列基板檢測裝置
CN103955079B (zh) * 2014-04-28 2017-01-18 深圳市华星光电技术有限公司 利用rgb显示装置获取rgbw显示装置白色的亮度和色度的方法
KR102192572B1 (ko) * 2014-06-09 2020-12-18 삼성전자주식회사 광원 모듈의 불량 검사방법, 광원 모듈의 제조 방법 및 광원 모듈 검사장치
CN104536205A (zh) * 2014-12-25 2015-04-22 深圳市华星光电技术有限公司 液晶显示器
CN104536204A (zh) * 2014-12-25 2015-04-22 深圳市华星光电技术有限公司 液晶显示器
KR102324238B1 (ko) * 2015-06-29 2021-11-10 삼성디스플레이 주식회사 얼룩 검사 장치 및 이의 구동 방법
CN108732808B (zh) * 2018-07-24 2020-02-14 武汉华星光电技术有限公司 液晶显示屏色度优化方法及液晶显示装置
CN111256826B (zh) * 2020-05-01 2020-08-04 武汉精立电子技术有限公司 显示屏色度测量方法、装置及终端设备
CN111812869B (zh) * 2020-07-02 2022-07-29 深圳市华星光电半导体显示技术有限公司 液晶显示面板的光学量测方法及量测系统

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1773301A (zh) * 2004-11-11 2006-05-17 三星电子株式会社 显示面板用检查装置及该显示面板用检查装置的检查方法
US20110261263A1 (en) * 2010-04-21 2011-10-27 University Of Central Florida Led backlight apparatus and method
CN103940832A (zh) * 2013-01-17 2014-07-23 北京兆维电子(集团)有限责任公司 一种应用于平板显示屏自动光学检测的打光装置
CN105424726A (zh) * 2016-01-12 2016-03-23 苏州富鑫林光电科技有限公司 基于机器视觉的发光面板检测方法
CN105954893A (zh) * 2016-05-30 2016-09-21 康佳集团股份有限公司 一种液晶光学模组的配置方法及检测装置
CN109445134A (zh) * 2018-11-28 2019-03-08 深圳同兴达科技股份有限公司 一种自动量测液晶显示模组光学数据的系统及方法
CN109901314A (zh) * 2019-03-26 2019-06-18 深圳市华星光电技术有限公司 光学检测装置及光学检测方法

Also Published As

Publication number Publication date
CN114923672A (zh) 2022-08-19
US12422704B2 (en) 2025-09-23
US20240219756A1 (en) 2024-07-04
CN114923672B (zh) 2023-10-17

Similar Documents

Publication Publication Date Title
CN105427788B (zh) 自动校调显示装置亮度和色度的方法及系统
CN100392367C (zh) 测量色度坐标的系统
US7218358B2 (en) Method and apparatus for calibrating color temperature of color display devices
US10288485B2 (en) Colorimetry calculation method and chroma calculation method for display
US9530337B2 (en) Test method and test apparatus for transparent display device
CN113257144B (zh) 提高led显示屏单箱校正后箱体间拼接亮度一致性的方法
CN110456537B (zh) 用于显示模组的测试方法及其系统
CN106226033B (zh) 检测透光基板透过率的方法及装置
CN113270063A (zh) 色坐标校准方法、系统、处理设备和计算机存储介质
US6606116B1 (en) Methods and apparatus for assessing quality of information displays
CN103366710B (zh) 以白色亮度参数提高四色白平衡调校的精准度的方法
CN103575670A (zh) 光学检测系统
CN103900795B (zh) 一种测试透明显示屏透明效果的设备及方法
CN104931238B (zh) 一种测试透明显示基板透明效果的设备及方法
CN101193319B (zh) 显示装置的灰度级白平衡的增益决定方法及装置
CN113267928B (zh) 背光模块、显示模组及校色方法、系统和设备
WO2017133091A1 (zh) 用于拼接显示装置显示颜色的方法及系统
US7619726B2 (en) Method of measuring light leakage intensity ratio and filter
CN118111675A (zh) 一种用于测量投影屏幕的色彩还原程度的方法
CN116337233A (zh) 一种集成光谱测量的倾斜滤镜式色度测量装置及测量方法
WO2023221192A1 (zh) 液晶显示面板的光学性能检测方法
CN105825020B (zh) 三维可感知色域计算方法
CN202916071U (zh) 一种透明显示器件测试设备
TW202321672A (zh) 色度量測方法及裝置
CN119832878A (zh) 校正参数的确定方法、装置、电子设备及存储介质

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 17758222

Country of ref document: US

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22942226

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 22942226

Country of ref document: EP

Kind code of ref document: A1

WWG Wipo information: grant in national office

Ref document number: 17758222

Country of ref document: US