WO2020103283A1 - 一种显示面板的测量方法、系统及显示装置 - Google Patents

一种显示面板的测量方法、系统及显示装置

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Publication number
WO2020103283A1
WO2020103283A1 PCT/CN2018/123973 CN2018123973W WO2020103283A1 WO 2020103283 A1 WO2020103283 A1 WO 2020103283A1 CN 2018123973 W CN2018123973 W CN 2018123973W WO 2020103283 A1 WO2020103283 A1 WO 2020103283A1
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WO
WIPO (PCT)
Prior art keywords
display panel
brightness
target position
display
backlight
Prior art date
Application number
PCT/CN2018/123973
Other languages
English (en)
French (fr)
Inventor
宋振莉
Original Assignee
惠科股份有限公司
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 惠科股份有限公司 filed Critical 惠科股份有限公司
Priority to US17/262,124 priority Critical patent/US11990105B2/en
Publication of WO2020103283A1 publication Critical patent/WO2020103283A1/zh

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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1306Details
    • G02F1/1309Repairing; Testing
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/10Intensity circuits
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/08Testing mechanical properties
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/59Transmissivity
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/006Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3607Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/88Investigating the presence of flaws or contamination
    • G01N21/95Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
    • G01N2021/9513Liquid crystal panels
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2203/00Function characteristic
    • G02F2203/69Arrangements or methods for testing or calibrating a device
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/0233Improving the luminance or brightness uniformity across the screen
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/06Adjustment of display parameters
    • G09G2320/0626Adjustment of display parameters for control of overall brightness
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00Aspects of the architecture of display systems
    • G09G2360/14Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/141Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light conveying information used for selecting or modulating the light emitting or modulating element
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals

Definitions

  • the present application relates to the field of display technology, and in particular, to a measurement method, system, and display device for a display panel.
  • liquid crystal panel display modes include: Twisted Nematic (TN), Plane Switching (IPS), and Vertical Alignment (VA).
  • the liquid crystal acts as a voltage-controlled light valve, directly Affect the light transmittance.
  • Conventional display panel measurement methods require multiple disassembly of the module or re-sticking of the polarizer. The measurement process is cumbersome and takes a long time, resulting in low accuracy and credibility of the data and low working efficiency.
  • An object of the present application is to provide a measurement method for a display panel, including but not limited to solving the tedious and long measurement process, resulting in low accuracy and credibility of data and low work efficiency.
  • the display efficiency of the display panel is calculated according to the brightness information.
  • the determining the target position on the display panel that meets the preset conditions includes:
  • a line connecting the first target position and the second target position is parallel to the row sub-pixels, the first target position and the second target position The distance between them is within the preset distance range.
  • the calculating the display efficiency of the display panel according to the brightness information includes:
  • the measurement of the brightness information at the target position under a fixed applied voltage includes:
  • the first backlight brightness is the backlight brightness corresponding to the first target position when the liquid crystal panel is removed
  • the first display panel brightness is the display The panel retains the brightness at the first target position of the display panel when the upper polarizer and the lower polarizer are used
  • the second backlight brightness is the backlight brightness corresponding to the second target position when the liquid crystal panel is removed
  • the second display panel brightness is the display The panel retains the brightness at the second target position of the display panel when the upper polarizer and the lower polarizer are used
  • the brightness of the third display panel is the brightness of the display panel when the display panel removes the upper polarizer at the first target position;
  • the brightness of the fifth display panel is the brightness of the display panel when the upper polarizer and the lower polarizer at the first target position are removed from the display panel;
  • the brightness of the sixth display panel is the brightness of the display panel when the display panel removes the upper polarizer and the lower polarizer at the second target position.
  • the calculating the display efficiency of the display panel according to the brightness information includes:
  • the display efficiency corresponding to the second target position is calculated according to the fifth penetration rate, the second penetration rate, the third penetration rate, and the sixth penetration rate.
  • the display corresponding to the first target position is calculated according to the first penetration rate, the second penetration rate, the third penetration rate, and the fourth penetration rate Efficiency, the calculation formula is:
  • T 1 is the first penetration rate
  • T 2 is the second penetration rate
  • T 3 is the third penetration rate
  • T 4 is the fourth penetration rate rate
  • the display efficiency corresponding to the second target position is calculated according to the fifth penetration rate, the second penetration rate, the third penetration rate, and the sixth penetration rate, and the calculation formula is:
  • T 5 is the fifth penetration rate
  • T 2 is the second penetration rate
  • T 3 is the third penetration rate
  • T 6 is the sixth penetration rate rate
  • the display efficiency of the display panel is calculated according to the display efficiency corresponding to the first target position and the display efficiency corresponding to the first target position, and the calculation formula is:
  • ⁇ LC is the display efficiency of the display panel.
  • the measurement of the brightness information at the target position under a fixed applied voltage includes:
  • the backlight brightness at the target position and the brightness of the display panel are measured.
  • after measuring the brightness of the backlight at the target position and the brightness of the display panel including:
  • the display efficiency corresponding to the target position is calculated according to the light transmittance at the target position.
  • the backlight brightness is the backlight normal brightness
  • the display panel brightness is the normal brightness emitted by the panel.
  • the target position includes: a point at the center position of the display panel, two points at a first distance from the center position or four points at a second distance from the center position, two points or four points
  • the line is parallel to the row sub-pixel.
  • the center of the display panel is marked, the distance between the target position and the center of the display panel is fixed and recorded, and a preset fixed time is set until the backlight is stable, and the measurement is started.
  • the first target position and the second target position on the display panel are determined, and the distance between the first target position and the second target position is within a preset distance range;
  • the display efficiency of the display panel is calculated according to the first penetration rate and the second penetration rate.
  • Another object of this application is to provide a measurement system for a display panel, including:
  • Positioning device set to determine the target position on the display panel that meets the preset conditions
  • the measuring device is set to measure the brightness information at the target position under a fixed external voltage
  • the calculation device is configured to calculate the display efficiency of the display panel based on the brightness information.
  • the positioning device is further configured to determine a first target position and a second target position on the display panel, a line connecting the first target position and the second target position is parallel to the row sub-pixel , The distance between the first target position and the second target position is within a preset distance range.
  • the measurement device is further configured to: measure the first backlight brightness and the first display panel brightness at the first target position; wherein, the first backlight brightness is the first when the liquid crystal panel is removed The backlight brightness corresponding to the target position, the brightness of the first display panel is the brightness at the first target position of the display panel when the display panel retains the upper polarizer and the lower polarizer;
  • the second backlight brightness is the backlight brightness corresponding to the second target position when the liquid crystal panel is removed
  • the second display panel brightness is the display The panel retains the brightness at the second target position of the display panel when the upper polarizer and the lower polarizer are used
  • the brightness of the third display panel is the brightness of the display panel when the display panel removes the upper polarizer at the first target position;
  • the brightness of the fifth display panel is the brightness of the display panel when the upper polarizer and the lower polarizer at the first target position are removed from the display panel;
  • the brightness of the sixth display panel is the brightness of the display panel when the display panel removes the upper polarizer and the lower polarizer at the second target position.
  • the computing device is further configured to: calculate the first display efficiency corresponding to the first target position according to the brightness information of the first target position;
  • Still another object of the present application is to provide a display device, including a display panel, a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor executing the computer program To realize the steps of the above measurement method of the display panel.
  • Embodiments of the present application further provide a computer-readable storage medium that stores a computer program, and when the computer program is executed by a processor, the steps of the above-described display panel measurement method are implemented.
  • the display panel measurement method, system and display device provided by the embodiments of the present application measure the brightness information of the target position under a fixed applied voltage by determining the target position that meets the preset conditions, and calculate the display efficiency of the display panel according to the brightness information It solves the problem that the conventional measurement method needs to disassemble the module or re-attach the polarizer multiple times, the measurement process is cumbersome and takes a long time, resulting in data accuracy, low credibility and low work efficiency; speed up the measurement of the display panel The efficiency of the work and the accuracy of the measurement of the display panel are improved.
  • FIG. 1 is a schematic structural diagram of a display panel provided by an example of this application.
  • FIG. 2 is a schematic flowchart of a method for measuring a display panel provided by an embodiment of the present application
  • FIG. 3 is a schematic diagram of a target location provided by an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a display panel when measuring different brightness information provided by an embodiment of the present application.
  • FIG. 5 is another schematic structural diagram of a display panel when measuring different brightness information provided by an embodiment of the present application.
  • FIG. 6 is another schematic structural diagram of a display panel when measuring different brightness information provided by an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a measurement system of a display panel provided by an embodiment of the present application.
  • FIG. 8 is a structural block diagram of a display device provided by an embodiment of the present application.
  • an example of the present application provides a schematic structural diagram of a display panel, which includes an upper polarizer 110, a lower polarizer 120, a liquid crystal layer 130, and a backlight module 140.
  • the display panel further includes: color filter glass 150, array glass 160; the color filter glass 150 is disposed between the upper polarizer 110 and the liquid crystal layer 130, the liquid crystal layer 130 is disposed between the color filter glass 150 and the array glass 160, the lower polarizer 120 is disposed under the array glass 160, and the backlight module is disposed under the lower polarizer.
  • a vertical alignment mode liquid crystal display panel is taken as an example.
  • the liquid crystal When the display panel is not applied with voltage, the liquid crystal will not be deflected, and the direction of light will not change through the liquid crystal layer, because the light transmission directions of the upper and lower polarizers are perpendicular , No light passes through the upper and lower polarizers, the backlight module light passes through the upper and lower polarizers, the display panel is in a dark state; after voltage is applied, the liquid crystal is deflected in the alignment direction under the action of the electric field, generating polarized light. Part of the light can pass through the upper and lower polarizers, and the display panel becomes bright after passing through the upper and lower polarizers.
  • the liquid crystal layer functions as a voltage-controlled light valve, which is crucial to the influence of light transmission rate, so the liquid crystal affects the display efficiency of the display panel.
  • an embodiment of the present application provides a measurement method of a display panel, which is applied to a display panel.
  • the display panel may include: an upper polarizer, a lower polarizer, a liquid crystal layer, and a backlight module; Measurement methods include:
  • Step S10 Determine the target position on the display panel that meets the preset conditions.
  • one point at the center position of the display panel may be selected as the target position, or two points at a first distance from the center position or four points at a second distance from the center position may be selected.
  • the line connecting two points or four points is parallel to the line sub-pixel;
  • the preset conditions include: if a point is selected as the target position, a position that is less than or equal to the preset distance from the center point of the display panel is selected; if Select two or more points, the selected points are on a line, and the connection of all points is parallel to the row sub-pixels of the pixel array; where the center point of the display panel is located on the connection of all points, or It is located on the extension line of the connection, or the distance between the connection and the center point of the display panel is less than or equal to the preset distance; where the preset distance can be set according to the pixel array of the display panel, the smaller the better.
  • the two selected points must be on the same horizontal line to eliminate the influence of the backlight.
  • the determination of the specific target position of the two points can also depend on the setting method of the light source of the backlight module.
  • determining the target position on the display panel that meets the preset conditions includes:
  • Determining a first target position and a second target position on the display panel the line connecting the first target position and the second target position is parallel to the row sub-pixel, and the first target position and the second target position are The distance between is within the preset distance range.
  • the line connecting the first target position and the second target position is parallel to the row sub-pixels, ensuring that the two target positions are not affected by the brightness of the backlight module; the distance between the two target positions is at a preset distance Within the range, the higher the distance and the smaller the accuracy, the preset distance can be set according to the specific size of the display panel or the brightness of the backlight.
  • Step S20 Under a fixed external voltage, measure the brightness information at the target position.
  • the applied voltage is a fixed value, so that the liquid crystal is maintained in the same state, and the brightness information is measured; 255 grayscale states can be selected to measure the brightness information; during the brightness measurement, the backlight module's The brightness remains unchanged.
  • measuring the brightness information at the target position under a fixed applied voltage includes:
  • the backlight brightness at the target position and the brightness of the display panel are measured.
  • the backlight brightness is the backlight normal brightness
  • the backlight normal brightness is the brightness generated by the light exiting direction perpendicular to the backlight plane
  • the display panel brightness is the brightness generated by the outgoing light perpendicular to the display panel .
  • after measuring the brightness of the backlight at the target position and the brightness of the display panel including:
  • the display efficiency corresponding to the target position is calculated according to the light transmittance at the target position.
  • the calculation formula of the penetration rate is
  • T is the transmittance
  • L 1 is the brightness of the display panel
  • L 0 is the brightness of the backlight.
  • the measurement of the brightness information at the target position under a fixed applied voltage includes:
  • the first backlight brightness is the backlight brightness corresponding to the first target position when the liquid crystal panel is removed
  • the first display panel brightness is the display The panel retains the brightness at the first target position of the display panel when the upper polarizer and the lower polarizer are used
  • the second backlight brightness is the backlight brightness corresponding to the second target position when the liquid crystal panel is removed
  • the second display panel brightness is the display The panel retains the brightness at the second target position of the display panel when the upper polarizer and the lower polarizer are used
  • the brightness of the third display panel is the brightness of the display panel when the display panel removes the upper polarizer at the first target position;
  • the brightness of the fifth display panel is the brightness of the display panel when the upper polarizer and the lower polarizer at the first target position are removed from the display panel;
  • the brightness of the sixth display panel is the brightness of the display panel when the display panel removes the upper polarizer and the lower polarizer at the second target position;
  • the first target position and the second target position are selected on the display panel to measure the efficiency of the display panel;
  • the backlight brightness is generated by the light emitted by the backlight module at a fixed voltage perpendicular to the plane of the backlight Brightness, the brightness of the display panel is the brightness generated by the backlight module providing light from the light source passing vertically through the liquid crystal panel under a fixed voltage.
  • two target locations are selected, the display panel is disassembled twice, and the brightness information at the two locations is measured at the same time; before disassembly, the distance of points A and B from the center of the display panel is measured To determine whether the distance between two points is within the preset distance range to ensure the accuracy of the measurement. The smaller the distance, the higher the accuracy of the measurement.
  • the preset distance can be set according to the specific backlight light group and the size of the display panel Set up; measure the brightness of the display panel at points A and B at the same time; the first disassembly process includes: the liquid crystal panel includes the upper polarizer, color filter glass, liquid crystal layer, array glass and lower polarizer, remove For the LCD panel, measure the backlight brightness of the backlight corresponding to points A and B at the same time.
  • the second disassembly process includes: removing the LCD panel, measuring the backlight brightness at points A and B at the same time, after the measurement, the two points corresponding to A and B After removing the upper polarizer and lower polarizer of the liquid crystal panel, after assembling the liquid crystal layer back to the display panel, measure the brightness of the display panel at points A and B, and calculate the efficiency of the display panel based on the brightness information measured above.
  • the number of disassembly is reduced, the measurement time is saved, the working efficiency is improved, the problem of light leakage or position change of the polarizer due to the disassembly process is avoided, and the measurement accuracy and data processing accuracy are improved degree.
  • mark the center of the display panel fix and record the distance between the target point A and point B relative to the center of the display panel, set a preset fixed time until the backlight is stable, and start the measurement, such as a fixed time
  • the value can be in the range of 10-30 minutes to ensure consistent measurement environment conditions and reduce measurement errors.
  • Step S30 Calculate the display efficiency of the display panel according to the brightness information.
  • the brightness information includes the backlight brightness corresponding to the target position and the display panel brightness at the target position of the display panel.
  • the brightness of the display panel is the brightness of the light emitted by the backlight module passing through the upper and lower polarizers and passing through the liquid crystal layer.
  • the information calculates the light transmittance and the display efficiency of the display panel based on the transmittance.
  • the calculating the display efficiency of the display panel according to the brightness information includes:
  • the display efficiency corresponding to the second target position is calculated according to the fifth penetration rate, the second penetration rate, the third penetration rate, and the sixth penetration rate.
  • point A is the first target position
  • point B is the second target position
  • the brightness of the first display panel at point A L 1A and the brightness of the second display panel L 1B at point B when the LCD panel is measured and removed, the first backlight brightness L 0A corresponding to point A and the second backlight brightness L 0B corresponding to point B; thus the first point at point A can be obtained
  • the penetration rate T 1 is:
  • T 1 L 1A / L 0A (2);
  • the fifth penetration rate T 5 at point B is:
  • T 5 L 1B / L 0B (3).
  • the third display panel brightness L 2A at point A when the upper polarizer of the liquid crystal panel is removed is measured, so that the first backlight corresponding to the third display panel brightness L 2A and point A
  • the brightness L 0A calculates the second penetration rate T 2 at point A as:
  • T 2 L 2A / L 0A (4);
  • the fourth display panel brightness L 2B at point B when the lower polarizer of the liquid crystal panel is removed is measured, thereby calculating the third wear of point B based on the fourth display panel brightness L 2B and the second backlight brightness L 0B corresponding to point B
  • the transmittance T 3 is:
  • T 3 L 2B / L 0B (5).
  • the brightness of the fifth display panel at point A is L 3A , so that the fourth transmittance T 4 at point A is calculated as :
  • T 4 L 3A / L 0A (6)
  • the brightness of the sixth display panel at point B is L 3B
  • the sixth transmittance T 6 at point B is calculated as:
  • T 6 L 3B / L 0B (7).
  • the first penetration rate T 1 , the second penetration rate T 2 , the third penetration rate T 3 and the fourth penetration rate T 4 are calculated
  • the display efficiency corresponding to a target position is calculated as:
  • ⁇ LC, 1 is the display efficiency corresponding to the first target position, that is, the display efficiency corresponding to the position of point A.
  • the first penetration rate T 5 , the second penetration rate T 2 , the third penetration rate T 3 , and the sixth penetration rate T 6 are used to calculate the first
  • the display efficiency corresponding to the two target positions is calculated as:
  • ⁇ LC, 2 is the display efficiency corresponding to the second target position, that is, the display efficiency corresponding to the position at the point B.
  • the display efficiency of the display panel is calculated according to the display efficiency ⁇ LC, 1 corresponding to the first target position and the display efficiency ⁇ LC, 2 corresponding to the first target position, and the calculation formula is:
  • ⁇ LC is the display efficiency of the display panel.
  • a method for measuring display efficiency is applied to a display panel.
  • the display panel includes: a backlight module and a liquid crystal panel.
  • the liquid crystal panel includes an upper polarizer, a lower polarizer, a liquid crystal layer, and a color filter glass.
  • the measuring method includes: determining a first target position and a second target position on the display panel, the distance between the first target position and the second target position is within a preset distance range; Under applied voltage, measure the backlight brightness information and display panel brightness of the first target position, measure the backlight brightness and display panel brightness of the second target position; according to the backlight brightness information and display panel brightness of the first target position , Calculate the first penetration rate of the first target position; calculate the second penetration rate of the second target position according to the backlight brightness and display panel brightness of the second target position; according to the first penetration
  • the transmittance and the second transmittance calculate the display efficiency of the display panel.
  • an embodiment of the present application provides a measurement system for a display panel, including:
  • the positioning device 71 is used to determine the target position on the display panel that meets the preset conditions; the measuring device 72 is used to measure the brightness information at the target position under a fixed external voltage; the computing device 73 is used to The brightness information calculates the display efficiency of the display panel.
  • the positioning device is further configured to determine a first target position and a second target position on the display panel, a line connecting the first target position and the second target position is parallel to the row sub-pixel , The distance between the first target position and the second target position satisfies the first condition.
  • the measurement device is further configured to: measure the first backlight brightness and the first display panel brightness at the first target position; wherein, the first backlight brightness is the first when the liquid crystal panel is removed The backlight brightness corresponding to the target position, the brightness of the first display panel is the brightness at the first target position of the display panel when the display panel retains the upper polarizer and the lower polarizer;
  • the second backlight brightness is the backlight brightness corresponding to the second target position when the liquid crystal panel is removed
  • the second display panel brightness is the display The panel retains the brightness at the second target position of the display panel when the upper polarizer and the lower polarizer are used
  • the brightness of the third display panel is the brightness of the display panel when the display panel removes the upper polarizer at the first target position;
  • the brightness of the fifth display panel is the brightness of the display panel when the upper polarizer and the lower polarizer at the first target position are removed from the display panel;
  • the brightness of the sixth display panel is the brightness of the display panel when the display panel removes the upper polarizer and the lower polarizer at the second target position.
  • the computing device is further configured to: calculate the first display efficiency corresponding to the first target position according to the brightness information of the first target position;
  • the measuring device is further configured to measure the brightness of the backlight at the target position and the brightness of the display panel; the brightness of the backlight is the normal brightness of the backlight, and the brightness of the display panel is the normal direction of the panel exit brightness.
  • system further includes:
  • a first calculator configured to calculate the light transmittance at the target position based on the backlight brightness at the target position and the brightness of the display panel
  • the second calculator is configured to calculate the display efficiency corresponding to the target position according to the light transmittance at the target position.
  • each circuit, chip, or device with a specific function in the apparatus can be passed through a general-purpose integrated circuit, such as a CPU (Central Processing Unit), or through an ASIC (Application Specific Integrated Circuit, Application specific integrated circuit).
  • a general-purpose integrated circuit such as a CPU (Central Processing Unit), or through an ASIC (Application Specific Integrated Circuit, Application specific integrated circuit).
  • the embodiment of the present application determines the target position that meets the preset conditions, measures the brightness information of the target position under a fixed external voltage, and calculates the display efficiency of the display panel according to the brightness information. Re-sticking the polarizer, the measurement process is cumbersome and takes a long time, resulting in data accuracy, low credibility and low work efficiency; speeding up the measurement work of the display panel, and improving the accuracy of the display panel measurement degree.
  • an embodiment of the present application provides a display device 80, which includes: a display panel 1, a processor 800, a memory 801, and stored in the memory 801 and running on the processor 800 ⁇ ⁇ ⁇ 802.
  • the processor 800 executes the computer program 802
  • the steps in the above embodiments of the measurement method of each display panel are realized, for example, steps S10 to S30 shown in FIG. Under a fixed applied voltage, measure the brightness information at the target position; calculate the display efficiency of the display panel according to the brightness information.
  • determining the target position on the display panel that meets the preset conditions includes: determining the first target position and the second target position on the display panel, the connection between the first target position and the second target position is The row sub-pixels are parallel, and the distance between the first target position and the second target position satisfies the first condition.
  • the processor 800 executes the computer program 802 the functions of the circuits in the foregoing device embodiments are realized, for example, the functions of the circuits 71 to 73 shown in FIG.
  • the display device may include, but is not limited to, the processor 800 and the memory 801.
  • FIG. 8 is only an example of the display device 80, and does not constitute a limitation on the display device 80, and may include more or less components than shown, or combine certain components, or different components.
  • the display device 80 may further include input and output devices, network access devices, buses, and the like.
  • the types of display panels that can be measured by the measurement method of the present application can be twisted-out (Twisted Nematic, TN) display panels, optically compensated bent alignment (optically compensated Birefringence, OCB) display panels, and vertical alignment (Vertical) ) Display panel, curved liquid crystal display device, but not limited to this.
  • the liquid crystal display device can use a direct backlight, and the backlight source can be white light, red, green, blue and RGB RGB light sources, red, green, blue, and white RGBW four color light sources, or red, green, blue, and yellow RGBY four color light sources, but is not limited thereto.
  • the so-called processor 800 may be a central processing unit (Central Processing Unit, CPU), or other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), Ready-made programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • the general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the memory 801 may be an internal storage unit of the display device 80, such as a hard disk or a memory of the display device 80.
  • the memory 801 may also be an external storage device of the display device 80, for example, a plug-in hard disk equipped on the display device 80, a smart memory card (Smart) Media (SMC), and a secure digital (SD) Cards, flash cards, etc.
  • the memory 801 may include both an internal storage unit of the display device 80 and an external storage device.
  • the memory 801 is used to store the computer program and other programs and data required by the display device.
  • the memory 801 may also be used to temporarily store data that has been output or will be output.
  • each functional unit and module is used as an example for illustration.
  • the above-mentioned functions may be allocated by different functional units
  • Module completion means that the internal structure of the device is divided into different functional units or modules to complete all or part of the functions described above.
  • the functional units and modules in the embodiments may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above integrated unit may use hardware It can also be implemented in the form of software functional units.
  • the specific names of each functional unit and module are only for the purpose of distinguishing each other, and are not used to limit the protection scope of the present application.
  • the disclosed device / terminal device and method may be implemented in other ways.
  • the device / terminal device embodiments described above are only schematic.
  • the division of the module or unit is only a logical function division, and in actual implementation, there may be another division manner, such as multiple units Or components can be combined or integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • 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, they may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above integrated unit may be implemented in the form of hardware or software functional unit.
  • the integrated module / unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a computer-readable storage medium.
  • the present application can implement all or part of the processes in the methods of the above embodiments, and can also be completed by a computer program instructing relevant hardware.
  • the computer program can be stored in a computer-readable storage medium. When the program is executed by the processor, the steps of the foregoing method embodiments may be implemented.
  • the computer program includes computer program code, and the computer program code may be in the form of source code, object code, executable file, or some intermediate form.
  • the computer-readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a USB flash drive, a mobile hard disk, a magnetic disk, an optical disk, a computer memory, a read-only memory (ROM, Read-Only Memory) , Random Access Memory (RAM, Random Access Memory), electrical carrier signals, telecommunications signals and software distribution media, etc.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • electrical carrier signals telecommunications signals and software distribution media, etc.
  • the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in jurisdictions. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media Does not include electrical carrier signals and telecommunications signals.

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Abstract

一种显示面板的测量方法、系统及显示装置,其中,显示面板包括:背光模组(140)和液晶面板,显示面板的测量方法包括确定显示面板上符合预设条件的目标位置,目标位置包括第一目标位置和第二目标位置,第一目标位置与第二目标位置的连线与行子像素平行;在固定的外加电压下,测量目标位置处的亮度信息,亮度信息包括背光模组(140)的亮度信息和显示面板的亮度信息;根据亮度信息计算显示面板的显示效率。

Description

一种显示面板的测量方法、系统及显示装置
本申请要求于2018年11月20日提交中国专利局,申请号为201811386245.7,申请名称为“一种显示面板的测量方法、系统及显示装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及显示技术领域,尤其涉及一种显示面板的测量方法、系统及显示装置。
背景技术
这里的陈述仅提供与本申请有关的背景信息,而不必然构成现有技术。随着液晶显示技术的不断发展,液晶面板因其良好的显示效果在电视机、大型会场的显示屏幕、PC(personal computer,个人计算机)机显示器等领域应用广泛。目前,常用的液晶面板显示模式包括:扭曲向列模式面板(Twisted Nematic,简称TN),平面转换模式面板(In Plane Switching,简称IPS)以及垂直配向模式面板(Vertical Alignment,简称VA)。
由于液晶分子在其长轴和短轴上的电子云密度分布不均,造成液晶分子在光学和电学上的存在各向异性;在整个显示过程中,液晶起到电压控制的光阀作用,直接影响光的穿透率。常规的显示面板的测量方法需要多次拆卸模组或重新粘贴偏振片,测量过程繁琐且时间较长,导致数据的准确性、可信性较低且工作效率低。
申请内容
本申请的一个目的在于提供一种显示面板的测量方法,包括但不限于解决测量过程繁琐且时间较长,导致数据的准确性、可信性较低且工作效率低。
本申请实施例采用的技术方案是:所述测量方法包括:
确定显示面板上符合预设条件的目标位置;
在固定的外加电压下,测量所述目标位置处的亮度信息;
根据所述亮度信息计算所述显示面板的显示效率。
在一个实施例中,所述确定显示面板上符合预设条件的目标位置,包括:
确定显示面板上的第一目标位置和第二目标位置,所述第一目标位置与所述第二目标位置的连线与行子像素平行,所述第一目标位置与所述第二目标位置之间的距离在预设距 离范围内。
在一个实施例中,所述根据所述亮度信息计算所述显示面板的显示效率,包括:
根据第一目标位置的亮度信息计算所述第一目标位置对应的第一显示效率;
根据第二目标位置的亮度信息计算所述第二目标位置对应的第二显示效率;
计算所述第一显示效率与所述第二显示效率的平均值,获取显示面板的显示效率。
在一个实施例中,所述在固定的外加电压下,测量所述目标位置处的亮度信息,包括:
测量所述第一目标位置处的第一背光亮度和第一显示面板亮度;其中,所述第一背光亮度为去除液晶面板时的第一目标位置对应的背光亮度,第一显示面板亮度为显示面板保留上偏光片和下偏光片时的显示面板的第一目标位置处的亮度;
测量所述第二目标位置处的第二背光亮度和第二显示面板亮度;其中,所述第二背光亮度为去除液晶面板时的第二目标位置对应的背光亮度,第二显示面板亮度为显示面板保留上偏光片和下偏光片时的显示面板的第二目标位置处的亮度;
测量所述第一目标位置处的第三显示面板亮度;其中,所述第三显示面板亮度为显示面板去除所述第一目标位置处的上偏光片时的显示面板亮度;
测量所述第二目标位置处的第四显示面板亮度;其中,所述第四显示面板亮度为显示面板去除第二目标位置处的下偏光片时的显示面板亮度;
测量第一目标位置处的第五显示面板亮度;其中,所述第五显示面板亮度为显示面板去除第一目标位置处的上偏光片和下偏光片时的显示面板亮度;
测量第二目标位置处的第六显示面板亮度;其中,所述第六显示面板亮度为显示面板去除第二目标位置处的上偏光片和下偏光片时的显示面板亮度。
在一个实施例中,所述根据所述亮度信息计算所述显示面板的显示效率,包括:
根据所述第一背光亮度和所述第一显示面板亮度计算第一穿透率;
根据所述第一背光亮度和所述第三显示面板亮度计算第二穿透率;
根据所述第二背光亮度和所述第四显示面板亮度计算第三穿透率;
根据所述第一背光亮度和所述第五显示面板亮度计算第四穿透率;
根据所述第二背光亮度和所述第二显示面板亮度计算第五穿透率;
根据所述第二背光亮度和所述第六显示面板亮度计算第六穿透率;
根据所述第一穿透率、所述第二穿透率、所述第三穿透率、所述第四穿透率计算所述第一目标位置对应的显示效率;
根据所述第五穿透率、所述第二穿透率、所述第三穿透率、所述第六穿透率计算所述第二目标位置对应的显示效率。
在一个实施例中,所述根据所述第一穿透率、所述第二穿透率、所述第三穿透率和所述第四穿透率计算所述第一目标位置对应的显示效率,计算公式为:
Figure PCTCN2018123973-appb-000001
其中,η LC,1为第一目标位置对应的显示效率,T 1为第一穿透率,T 2为第二穿透率,T 3为第三穿透率,T 4为第四穿透率;
根据所述第五穿透率、所述第二穿透率、所述第三穿透率、所述第六穿透率计算所述第二目标位置对应的显示效率,计算公式为:
Figure PCTCN2018123973-appb-000002
其中,η LC,2为第二目标位置对应的显示效率,T 5为第五穿透率,T 2为第二穿透率,T 3为第三穿透率,T 6为第六穿透率;
根据所述第一目标位置对应的显示效率和所述第一目标位置对应的显示效率计算显示面板的显示效率,计算公式为:
Figure PCTCN2018123973-appb-000003
其中,η LC为显示面板的显示效率。
在一个实施例中,所述在固定的外加电压下,测量所述目标位置处的亮度信息,包括:
测量所述目标位置处的背光亮度和所述显示面板的亮度。
在一个实施例中,在测量所述目标位置处的背光亮度和所述显示面板的亮度之后,包括:
根据所述目标位置处的背光亮度和所述显示面板的亮度计算所述目标位置处的光穿透率;
根据所述目标位置处的光穿透率计算所述目标位置对应的显示效率。
在一个实施例中,所述背光亮度为背光源法向亮度,显示面板亮度为面板出射的法向亮度。
在一个实施例中,所述目标位置包括:显示面板中心位置处的一个点、距离中心位置第一距离的两个点或距离中心位置第二距离四个点,两个点或四个点的连线与行子像素平行。
在一个实施例中,对显示面板的中心进行标记,固定并记录目标位置相对于显示面板 中心的距离,设置预设的固定时间至背光稳定后,开始进行测量。
在一个实施例中,确定显示面板上的第一目标位置和第二目标位置,所述第一目标位置与所述第二目标位置的间距在预设距离范围内;
在固定的外加电压下,测量所述第一目标位置的背光亮度信息和显示面板亮度,测量所述第二目标位置的背光亮度和显示面板亮度;
根据所述第一目标位置的背光亮度信息和显示面板亮度,计算所述第一目标位置的第一穿透率;根据所述第二目标位置的背光亮度和显示面板亮度,计算所述第二目标位置的第二穿透率;
根据所述第一穿透率和所述第二穿透率计算所述显示面板的显示效率。
本申请的另一目的在于提供一种显示面板的测量系统,包括:
定位设备,设置为确定显示面板上符合预设条件的目标位置;
测量设备,设置为在固定的外加电压下,测量所述目标位置处的亮度信息;
计算设备,设置为根据所述亮度信息计算所述显示面板的显示效率。
在一个实施例中,所述定位设备,还设置为确定显示面板上的第一目标位置和第二目标位置,所述第一目标位置与所述第二目标位置的连线与行子像素平行,所述第一目标位置与所述第二目标位置之间的距离在预设距离范围内。
在一个实施例中,所述测量设备还设置为:测量所述第一目标位置处的第一背光亮度和第一显示面板亮度;其中,所述第一背光亮度为去除液晶面板时的第一目标位置对应的背光亮度,第一显示面板亮度为显示面板保留上偏光片和下偏光片时的显示面板的第一目标位置处的亮度;
测量所述第二目标位置处的第二背光亮度和第二显示面板亮度;其中,所述第二背光亮度为去除液晶面板时的第二目标位置对应的背光亮度,第二显示面板亮度为显示面板保留上偏光片和下偏光片时的显示面板的第二目标位置处的亮度;
测量所述第一目标位置处的第三显示面板亮度;其中,所述第三显示面板亮度为显示面板去除所述第一目标位置处的上偏光片时的显示面板亮度;
测量所述第二目标位置处的第四显示面板亮度;其中,所述第四显示面板亮度为显示面板去除第二目标位置处的下偏光片时的显示面板亮度;
测量第一目标位置处的第五显示面板亮度;其中,所述第五显示面板亮度为显示面板去除第一目标位置处的上偏光片和下偏光片时的显示面板亮度;
测量第二目标位置处的第六显示面板亮度;其中,所述第六显示面板亮度为显示面板去除第二目标位置处的上偏光片和下偏光片时的显示面板亮度。
在一个实施例中,所述计算设备还设置为:根据第一目标位置的亮度信息计算所述第一目标位置对应的第一显示效率;
根据第二目标位置的亮度信息计算所述第二目标位置对应的第二显示效率;
计算所述第一显示效率与所述第二显示效率的平均值,获取显示面板的显示效率。
本申请的再一目的在于提供一种显示装置,包括显示面板、存储器、处理器以及存储在所述存储器中并可在所述处理器上运行的计算机程序,所述处理器执行所述计算机程序时实现上述显示面板的测量方法的步骤。
本申请实施例还提供一种计算机可读存储介质,所述计算机可读存储介质存储有计算机程序,所述计算机程序被处理器执行时实现上述显示面板的测量方法的步骤。
本申请实施例提供的显示面板的测量方法、系统及显示装置,通过确定符合预设条件的目标位置,在固定外加电压下,测量目标位置的亮度信息,并根据亮度信息计算显示面板的显示效率,解决了常规测量方法需要多次拆卸模组或重新粘贴偏振片,测量过程繁琐且时间较长,导致数据的准确性、可信性较低且工作效率低的问题;加快了显示面板的测量工作的效率,以及提高了显示面板的测量的准确度。
附图说明
为了更清楚地说明本申请实施例中的技术方案,下面将对实施例或示范性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申请的一些实施例,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它的附图。
图1是本申请的一个范例提供的一种显示面板的结构示意图;
图2是本申请的一个实施例提供的显示面板的测量方法的流程示意图;
图3是本申请的一个实施例提供的目标位置的示意图;
图4是本申请的一个实施例提供的测量不同亮度信息时显示面板的结构示意图;
图5是本申请的一个实施例提供的测量不同亮度信息时显示面板的另一结构示意图;
图6是本申请的一个实施例提供的测量不同亮度信息时显示面板的另一结构示意图;
图7是本申请的一个实施例提供的显示面板的测量系统的结构示意图;
图8是本申请的一个实施例提供的显示装置的结构框图。
具体实施方式
为了使本申请的目的、技术方案及优点更加清楚明白,以下结合附图及实施例,对本申请进行进一步详细说明。应当理解,此处所描述的具体实施例仅用以解释本申请,并不 用于限定本申请。
需说明的是,当部件被称为“固定于”或“设置于”另一个部件,它可以直接在另一个部件上或者间接在该另一个部件上。当一个部件被称为是“连接于”另一个部件,它可以是直接或者间接连接至该另一个部件上。术语“上”、“下”、“左”、“右”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本申请的限制,对于本领域的普通技术人员而言,可以根据具体情况理解上述术语的具体含义。术语“第一”、“第二”仅用于便于描述目的,而不能理解为指示或暗示相对重要性或者隐含指明技术特征的数量。“多个”的含义是两个或两个以上,除非另有明确具体的限定。
为了说明本申请所述的技术方案,以下结合具体附图及实施例进行详细说明。
如图1所示,本申请的一个范例提供一种显示面板的结构示意图,其包括上偏光片110,下偏光片120,液晶层130和背光模组140,显示面板还包括:彩色滤光玻璃150,阵列玻璃160;所述彩色滤光玻璃150设置于上偏光片110与液晶层130之间,所述液晶层130设置于彩色滤光玻璃150与阵列玻璃160之间,所述下偏光片120设置于阵列玻璃160下方,所述背光模组设置于下偏光片下方。
在一个实施例中,以垂直配向模式液晶显示面板为例,显示面板在不加电压时,液晶不会偏转,光线经过液晶层不会发生方向的改变,由于上下偏光片的透光方向互相垂直,没有光透过上下偏光片,背光模组的灯光通过上下偏光片后显示面板呈暗态;在施加电压后,液晶在电场的作用下沿配向方向发生偏转,产生偏振光,背光模组的光可以有部分透过上下偏光片,通过上下偏光片后显示面板呈亮态。在整个过程中,液晶层起到一个电压控制的光阀作用,对光的穿透率的影响至关重要,因此液晶影响显示面板的显示效率。
如图2所示,本申请的一个实施例提供一种显示面板的测量方法,应用于显示面板,所述显示面板可以包括:上偏光片、下偏光片、液晶层和背光模组;所述测量方法包括:
步骤S10:确定显示面板上符合预设条件的目标位置。
在一个实施例中,目标位置的确定,可以选择显示面板中心位置处的一个点作为目标位置,也可以选择距离中心位置第一距离的两个点或距离中心位置第二距离的四个点,两个点或四个点的连线与行子像素平行;所述的预设条件包括:若选择一点作为目标位置,则选择距离显示面板中心点为小于或等于预设距离的位置处;若选择两个点或者多个点,则所选择的点在一条线上,并且所有点的连线与像素阵列的行子像素平行;其中,显示面板的中心点位于所有点的连线上,或者位于连线的延长线上,或者连线距离显示面板中心点的距离小于或等于预设距离;其中预设距离可以根据显示面板像素阵列情况进行设定, 距离越小越好。如图3所示,以两个点A、B为例,由于显示面板的亮度可能存在亮度不均,所以选择两个点之间距离越小越好;由于背光模组的发光源为平行于行子像素的灯组设置方式,因此选择的两个点必须在同一水平线上,消除背光的影响,具体两个点目标位置的确定也可以依据背光模组的发光源的设置方式而定。
在一个实施例中,确定显示面板上符合预设条件的目标位置,包括:
确定显示面板上第一目标位置和第二目标位置,所述第一目标位置与所述第二目标位置的连线与行子像素平行,所述第一目标位置与所述第二目标位置之间的距离在预设距离范围内。
在一个实施例中,第一目标位置与第二目标位置的连线与行子像素平行,确保两个目标位置不受背光模组亮度的影响;两个目标位置之间的距离在预设距离范围内,距离与小精确度越高,预设距离可以根据显示面板的具体尺寸或背光源的亮度进行具体设定。
步骤S20:在固定的外加电压下,测量所述目标位置处的亮度信息。
在一个实施例中,外加电压是固定的值,使液晶保持在相同状态下,进行亮度信息的测量;可以选取255灰阶状态测量亮度信息;在进行亮度测量过程中,所述背光模组的亮度保持不变。
在一个实施例中,在固定的外加电压下,测量所述目标位置处的亮度信息,包括:
测量所述目标位置处的背光亮度和显示面板的亮度。
在一个实施例中,所述背光亮度为背光源法向亮度,所述背光源法向亮度为光线出射方向垂直背光源平面所产生的亮度;显示面板亮度为出射光线垂直显示面板所产生的亮度。
在一个实施例中,在测量所述目标位置处的背光亮度和所述显示面板的亮度之后,包括:
根据所述目标位置处的背光亮度和所述显示面板的亮度计算所述目标位置处的光穿透率;
根据所述目标位置处的光穿透率计算所述目标位置对应的显示效率。
在一个实施例中,穿透率的计算公式为
T=L 1/L 0         (1)
其中,T为穿透率,L 1为显示面板亮度,L 0为背光亮度。
在一个实施例中,所述在固定的外加电压下,测量所述目标位置处的亮度信息,包括:
测量所述第一目标位置处的第一背光亮度和第一显示面板亮度;其中,所述第一背光亮度为去除液晶面板时的第一目标位置对应的背光亮度,第一显示面板亮度为显示面板保 留上偏光片和下偏光片时的显示面板的第一目标位置处的亮度;
测量所述第二目标位置处的第二背光亮度和第二显示面板亮度;其中,所述第二背光亮度为去除液晶面板时的第二目标位置对应的背光亮度,第二显示面板亮度为显示面板保留上偏光片和下偏光片时的显示面板的第二目标位置处的亮度;
测量所述第一目标位置处的第三显示面板亮度;其中,所述第三显示面板亮度为显示面板去除所述第一目标位置处的上偏光片时的显示面板亮度;
测量所述第二目标位置处的第四显示面板亮度;其中,所述第四显示面板亮度为显示面板去除第二目标位置处的下偏光片时的显示面板亮度;
测量第一目标位置处的第五显示面板亮度;其中,所述第五显示面板亮度为显示面板去除第一目标位置处的上偏光片和下偏光片时的显示面板亮度;
测量第二目标位置处的第六显示面板亮度;其中,所述第六显示面板亮度为显示面板去除第二目标位置处的上偏光片和下偏光片时的显示面板亮度;
所述第一目标位置和所述第二目标位置为在显示面板上选取的、测量显示面板效率的位置;背光亮度为背光模组在固定电压下提供的垂直与背光灯平面的出射光线产生的亮度,显示面板的亮度为在固定电压下,背光模组提供光源垂直穿过液晶面板的光线产生的亮度。
在一个实施例中,选择两个目标位置,对显示面板进行两次拆装,并同时测得两个位置处相关的亮度信息;在拆卸之前,测量A点和B点相对显示面板中心的距离,确定两点之间的距离是否在预设距离范围之内,保证测量的精度,距离越小,测量的精准度越高,预设距离可以根据具体的背光源灯组设定以及显示面板尺寸进行设置;同时测量A点和B点的显示面板的亮度;第一次拆装过程包括:所述液晶面板包括上偏光片、彩色滤光玻璃、液晶层、阵列玻璃以及下偏光片,取下液晶面板,同时测量A点和B点位置对应的背光源的背光亮度,测量结束后去除A点对应的液晶面板的上偏光片以及B点对应的液晶面板的下偏光片,将液晶面板组装回显示面板,同时测量A点和B点的显示面板亮度;第二次拆装过程包括:取下液晶面板,同时测量A点和B点的背光亮度,测量结束后将A、B两点对应的液晶面板的上偏光片和下偏光片全部去除,将液晶层组装回显示面板后,测量A、B两点显示面板亮度,根据以上测得的亮度信息计算显示面板的效率。通过测量两个点的亮度信息,减少了拆卸的次数,节约测量时间,提高了工作效率,避免了因为拆卸过程使偏光片发生漏光或位置发生变化的问题,提高了测量精度以及数据处理的准确度。
由于A点和B点对应的背光亮度存在较小的差异,因此测量过程中,分别测得两点的背光亮度,在计算过程中可以忽略较小误差。
在一个实施例中,对显示面板的中心进行标记,固定并记录目标位置A点和B点相对 于显示面板中心的距离,设置预设的固定时间至背光稳定后,开始进行测量,例如固定时间可以取值在10-30分钟范围内,保证测量环境条件一致,减小测量误差。
步骤S30,根据所述亮度信息计算所述显示面板的显示效率。
在一个实施例中,亮度信息包括目标位置对应的背光亮度和显示面板目标位置处显示面板亮度,显示面板的亮度为背光模组发出的光经过上下偏光片、透过液晶层的亮度,根据亮度信息计算光的穿透率,根据穿透率计算显示面板的显示效率。
在一个实施例中,所述根据所述亮度信息计算所述显示面板的显示效率,包括:
根据所述第一背光亮度和所述第一显示面板亮度计算第一穿透率;
根据所述第一背光亮度和所述第三显示面板亮度计算第二穿透率;
根据所述第二背光亮度和所述第四显示面板亮度计算第三穿透率;
根据所述第一背光亮度和所述第五显示面板亮度计算第四穿透率;
根据所述第二背光亮度和所述第二显示面板亮度计算第五穿透率;
根据所述第二背光亮度和所述第六显示面板亮度计算第六穿透率;
根据所述第一穿透率、所述第二穿透率、所述第三穿透率、所述第四穿透率计算所述第一目标位置对应的显示效率;
根据所述第五穿透率、所述第二穿透率、所述第三穿透率、所述第六穿透率计算所述第二目标位置对应的显示效率。
在一个实施例中,如图4所示,A点为第一目标位置,B点为第二目标位置;测量保留液晶层、上偏光片和下偏光片时,A点的第一显示面板亮度L 1A和B点的第二显示面板亮度L 1B;测量去除液晶面板时,A点对应的第一背光亮度L 0A和B点对应的第二背光亮度L 0B;从而可以得到A点的第一穿透率T 1为:
T 1=L 1A/L 0A      (2);
B点的第五穿透率T 5为:
T 5=L 1B/L 0B      (3)。
在一个实施例中,如图5所示,测量去除液晶面板的上偏光片时的A点的第三显示面板亮度L 2A,从而根据第三显示面板亮度L 2A和A点对应的第一背光亮度L 0A计算A点的第二穿透率T 2为:
T 2=L 2A/L 0A       (4);
同时,测量去除液晶面板的下偏光片时的B点的第四显示面板亮度L 2B,从而根据第四显示面板亮度L 2B和B点对应的第二背光亮度L 0B计算B点的第三穿透率T 3为:
T 3=L 2B/L 0B       (5)。
在一个实施例中,如图6所示,测量去除液晶面板的上偏光片和下偏光片时,A点的第五显示面板亮度L 3A,从而计算A点的第四穿透率T 4为:
T 4=L 3A/L 0A       (6);
同时,测量去除上偏光片和下偏光片时,B点的第六显示面板亮度L 3B,从而计算B点的第六穿透率T 6为:
T 6=L 3B/L 0B       (7)。
在一个实施例中,根据所述第一穿透率T 1、所述第二穿透率T 2、所述第三穿透率T 3和所述第四穿透率T 4计算所述第一目标位置对应的显示效率,计算公式为:
Figure PCTCN2018123973-appb-000004
其中,η LC,1为第一目标位置对应的显示效率,即A点位置处对应的显示效率。
在一个实施例中,根据所述第五穿透率T 5、所述第二穿透率T 2、所述第三穿透率T 3、所述第六穿透率T 6计算所述第二目标位置对应的显示效率,计算公式为:
Figure PCTCN2018123973-appb-000005
其中,η LC,2为第二目标位置对应的显示效率,即B点位置处对应的显示效率。
在一个实施例中,根据所述第一目标位置对应的显示效率η LC,1和所述第一目标位置对应的显示效率η LC,2计算显示面板的显示效率,计算公式为:
Figure PCTCN2018123973-appb-000006
其中,η LC为显示面板的显示效率。
在一个实施例中,显示效率的测量方法,应用于显示面板,所述显示面板包括:背光模组和液晶面板,所述液晶面板包括上偏光片、下偏光片、液晶层、彩色滤光玻璃以及阵列玻璃;所述测量方法包括:确定显示面板上的第一目标位置和第二目标位置,所述第一目标位置与所述第二目标位置的间距在预设距离范围内;在固定的外加电压下,测量所述第一目标位置的背光亮度信息和显示面板亮度,测量所述第二目标位置的背光亮度和显示面板亮度;根据所述第一目标位置的背光亮度信息和显示面板亮度,计算所述第一目标位 置的第一穿透率;根据所述第二目标位置的背光亮度和显示面板亮度,计算所述第二目标位置的第二穿透率;根据所述第一穿透率和所述第二穿透率计算所述显示面板的显示效率。
如图7所示,本申请的一个实施例提供一种显示面板的测量系统,包括:
定位设备71,用于确定显示面板上符合预设条件的目标位置;测量设备72,用于在固定的外加电压下,测量所述目标位置处的亮度信息;计算设备73,用于根据所述亮度信息计算所述显示面板的显示效率。
在一个实施例中,所述定位设备,还设置为确定显示面板上的第一目标位置和第二目标位置,所述第一目标位置与所述第二目标位置的连线与行子像素平行,所述第一目标位置与所述第二目标位置之间的距离满足第一条件。
在一个实施例中,所述测量设备还设置为:测量所述第一目标位置处的第一背光亮度和第一显示面板亮度;其中,所述第一背光亮度为去除液晶面板时的第一目标位置对应的背光亮度,第一显示面板亮度为显示面板保留上偏光片和下偏光片时的显示面板的第一目标位置处的亮度;
测量所述第二目标位置处的第二背光亮度和第二显示面板亮度;其中,所述第二背光亮度为去除液晶面板时的第二目标位置对应的背光亮度,第二显示面板亮度为显示面板保留上偏光片和下偏光片时的显示面板的第二目标位置处的亮度;
测量所述第一目标位置处的第三显示面板亮度;其中,所述第三显示面板亮度为显示面板去除所述第一目标位置处的上偏光片时的显示面板亮度;
测量所述第二目标位置处的第四显示面板亮度;其中,所述第四显示面板亮度为显示面板去除第二目标位置处的下偏光片时的显示面板亮度;
测量第一目标位置处的第五显示面板亮度;其中,所述第五显示面板亮度为显示面板去除第一目标位置处的上偏光片和下偏光片时的显示面板亮度;
测量第二目标位置处的第六显示面板亮度;其中,所述第六显示面板亮度为显示面板去除第二目标位置处的上偏光片和下偏光片时的显示面板亮度。
在一个实施例中,所述计算设备还设置为:根据第一目标位置的亮度信息计算所述第一目标位置对应的第一显示效率;
根据第二目标位置的亮度信息计算所述第二目标位置对应的第二显示效率;
计算所述第一显示效率与所述第二显示效率的平均值,获取显示面板的显示效率。
在一个实施例中,所述测量设备还设置为测量所述目标位置处的背光亮度和所述显示面板的亮度;所述背光亮度为背光源法向亮度,显示面板亮度为面板出射的法向亮度。
在一个实施例中,所述系统还包括:
第一计算器,设置为根据所述目标位置处的背光亮度和所述显示面板的亮度计算所述目标位置处的光穿透率;
第二计算器,设置为根据所述目标位置处的光穿透率计算所述目标位置对应的显示效率。
在一个实施例中,所述装置中的各电路、芯片或具有特定功能的器件,均可以通过通用集成电路,例如CPU(Central Processing Unit,中央处理器),或通过ASIC(Application Specific Integrated Circuit,专用集成电路)来实现。
本申请实施例通过确定符合预设条件的目标位置,在固定外加电压下,测量目标位置的亮度信息,并根据亮度信息计算显示面板的显示效率,解决了常规测量方法需要多次拆卸模组或重新粘贴偏振片,测量过程繁琐且时间较长,导致数据的准确性、可信性较低且工作效率低的问题;加快了显示面板的测量工作的效率,以及提高了显示面板的测量的准确度。
如图8所示,本申请的一个实施例提供一种显示装置80,其包括:显示面板1、处理器800、存储器801以及存储在所述存储器801中并可在所述处理器800上运行的计算机程序802。所述处理器800执行所述计算机程序802时实现上述各个显示面板的测量方法实施例中的步骤,例如图2所示的步骤S10至S30:确定显示面板上符合预设条件的目标位置;在固定的外加电压下,测量所述目标位置处的亮度信息;根据所述亮度信息计算所述显示面板的显示效率。其中,所述确定显示面板上符合预设条件的目标位置,包括:确定显示面板上的第一目标位置和第二目标位置,所述第一目标位置与所述第二目标位置的连线与行子像素平行,所述第一目标位置与所述第二目标位置之间的距离满足第一条件。或者,所述处理器800执行所述计算机程序802时实现上述各装置实施例中各电路的功能,例如图7所示电路71至73的功能。
所述显示装置可包括,但不仅限于,处理器800、存储器801。本领域技术人员可以理解,图8仅仅是显示装置80的示例,并不构成对显示装置80的限定,可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件,例如所述显示装置80还可以包括输入输出设备、网络接入设备、总线等。
本申请的测量方法可以测量的显示面板的种类可以为扭曲向外型(Twisted Nematic,TN)显示面板、光学补偿弯曲排列型(optically compensated Birefringence,OCB)显示面板、垂直配向型(Vertical Alignment,VA)显示面板、曲面型液晶显示器件,但并不限于此。该液晶显示器件可以运用直下背光,背光源可以为白光、红绿蓝RGB三色光源、红绿蓝白RGBW四色光源或者红绿蓝黄RGBY四色光源,但并不限于此。
所称处理器800可以是中央处理单元(Central Processing Unit,CPU),还可以是其他通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现成可编程门阵列(Field-Programmable Gate Array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
所述存储器801可以是所述显示装置80的内部存储单元,例如显示装置80的硬盘或内存。所述存储器801也可以是所述显示装置80的外部存储设备,例如所述显示装置80上配备的插接式硬盘,智能存储卡(Smart Media Card,SMC),安全数字(Secure Digital,SD)卡,闪存卡(Flash Card)等。进一步地,所述存储器801还可以既包括所述显示装置80的内部存储单元也包括外部存储设备。所述存储器801用于存储所述计算机程序以及所述显示装置所需的其他程序和数据。所述存储器801还可以用于暂时地存储已经输出或者将要输出的数据。
所属领域的技术人员可以清楚地了解到,为了描述的方便和简洁,仅以上述各功能单元、模块的划分进行举例说明,实际应用中,可以根据需要而将上述功能分配由不同的功能单元、模块完成,即将所述装置的内部结构划分成不同的功能单元或模块,以完成以上描述的全部或者部分功能。实施例中的各功能单元、模块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,也可以采用软件功能单元的形式实现。另外,各功能单元、模块的具体名称也只是为了便于相互区分,并不用于限制本申请的保护范围。上述系统中单元、模块的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
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或记载的部分,可以参见其它实施例的相关描述。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
在本申请所提供的实施例中,应该理解到,所揭露的装置/终端设备和方法,可以通过其它的方式实现。例如,以上所描述的装置/终端设备实施例仅仅是示意性的,例如,所述模块或单元的划分,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讯连接可以是通过一些接口,装置或单元的间接耦合或通讯连接,可以是电性,机械或其它的形式。
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,在本申请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,也可以采用软件功能单元的形式实现。
所述集成的模块/单元如果以软件功能单元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介质中。基于这样的理解,本申请实现上述实施例方法中的全部或部分流程,也可以通过计算机程序来指令相关的硬件来完成,所述的计算机程序可存储于一计算机可读存储介质中,该计算机程序在被处理器执行时,可实现上述各个方法实施例的步骤。。其中,所述计算机程序包括计算机程序代码,所述计算机程序代码可以为源代码形式、对象代码形式、可执行文件或某些中间形式等。所述计算机可读介质可以包括:能够携带所述计算机程序代码的任何实体或装置、记录介质、U盘、移动硬盘、磁碟、光盘、计算机存储器、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、电载波信号、电信信号以及软件分发介质等。需要说明的是,所述计算机可读介质包含的内容可以根据司法管辖区内立法和专利实践的要求进行适当的增减,例如在某些司法管辖区,根据立法和专利实践,计算机可读介质不包括电载波信号和电信信号。
以上仅为本申请的可选实施例而已,并不用于限制本申请。对于本领域的技术人员来说,本申请可以有各种更改和变化。凡在本申请的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本申请的权利要求范围之内。

Claims (20)

  1. 一种显示面板的测量方法,其中,包括:
    确定显示面板上符合预设条件的目标位置;
    在固定的外加电压下,测量所述目标位置处的亮度信息;
    根据所述亮度信息计算所述显示面板的显示效率。
  2. 根据权利要求1所述的显示面板的测量方法,其中,所述确定显示面板上符合预设条件的目标位置,包括:
    确定显示面板上的第一目标位置和第二目标位置,所述第一目标位置与所述第二目标位置的连线与行子像素平行,所述第一目标位置与所述第二目标位置之间的距离在预设距离范围内。
  3. 根据权利要求2所述的显示面板的测量方法,其中,所述根据所述亮度信息计算所述显示面板的显示效率,包括:
    根据第一目标位置的亮度信息计算所述第一目标位置对应的第一显示效率;
    根据第二目标位置的亮度信息计算所述第二目标位置对应的第二显示效率;
    计算所述第一显示效率与所述第二显示效率的平均值,获取显示面板的显示效率。
  4. 根据权利要求2所述的显示面板的测量方法,其中,所述在固定的外加电压下,测量所述目标位置处的亮度信息,包括:
    测量所述第一目标位置处的第一背光亮度和第一显示面板亮度;其中,所述第一背光亮度为去除液晶面板时的第一目标位置对应的背光亮度,第一显示面板亮度为显示面板保留上偏光片和下偏光片时的显示面板的第一目标位置处的亮度;
    测量所述第二目标位置处的第二背光亮度和第二显示面板亮度;其中,所述第二背光亮度为去除液晶面板时的第二目标位置对应的背光亮度,第二显示面板亮度为显示面板保留上偏光片和下偏光片时的显示面板的第二目标位置处的亮度;
    测量所述第一目标位置处的第三显示面板亮度;其中,所述第三显示面板亮度为显示面板去除所述第一目标位置处的上偏光片时的显示面板亮度;
    测量所述第二目标位置处的第四显示面板亮度;其中,所述第四显示面板亮度为显示面板去除第二目标位置处的下偏光片时的显示面板亮度;
    测量第一目标位置处的第五显示面板亮度;其中,所述第五显示面板亮度为显示面板去除第一目标位置处的上偏光片和下偏光片时的显示面板亮度;
    测量第二目标位置处的第六显示面板亮度;其中,所述第六显示面板亮度为显示面板去除第二目标位置处的上偏光片和下偏光片时的显示面板亮度。
  5. 根据权利要求4所述的显示面板的测量方法,其中,所述根据所述亮度信息计算所述显示面板的显示效率,包括:
    根据所述第一背光亮度和所述第一显示面板亮度计算第一穿透率;
    根据所述第一背光亮度和所述第三显示面板亮度计算第二穿透率;
    根据所述第二背光亮度和所述第四显示面板亮度计算第三穿透率;
    根据所述第一背光亮度和所述第五显示面板亮度计算第四穿透率;
    根据所述第二背光亮度和所述第二显示面板亮度计算第五穿透率;
    根据所述第二背光亮度和所述第六显示面板亮度计算第六穿透率;
    根据所述第一穿透率、所述第二穿透率、所述第三穿透率、所述第四穿透率计算所述第一目标位置对应的显示效率;
    根据所述第五穿透率、所述第二穿透率、所述第三穿透率、所述第六穿透率计算所述第二目标位置对应的显示效率。
  6. 根据权利要求5所述的显示面板的测量方法,其中,所述根据所述第一穿透率、所述第二穿透率、所述第三穿透率和所述第四穿透率计算所述第一目标位置对应的显示效率,计算公式为:
    Figure PCTCN2018123973-appb-100001
    其中,η LC,1为第一目标位置对应的显示效率,T 1为第一穿透率,T 2为第二穿透率,T 3为第三穿透率,T 4为第四穿透率;
    根据所述第五穿透率、所述第二穿透率、所述第三穿透率、所述第六穿透率计算所述第二目标位置对应的显示效率,计算公式为:
    Figure PCTCN2018123973-appb-100002
    其中,η LC,2为第二目标位置对应的显示效率,T 5为第五穿透率,T 2为第二穿透率,T 3为第三穿透率,T 6为第六穿透率;
    根据所述第一目标位置对应的显示效率和所述第一目标位置对应的显示效率计算显示面板的显示效率,计算公式为:
    Figure PCTCN2018123973-appb-100003
    其中,η LC为显示面板的显示效率。
  7. 根据权利要求1所述的显示面板的测量方法,其中,所述在固定的外加电压下,测量所述目标位置处的亮度信息,包括:
    测量所述目标位置处的背光亮度和所述显示面板的亮度。
  8. 根据权利要求7所述的显示面板的测量方法,其中,在测量所述目标位置处的背光亮度和所述显示面板的亮度之后,包括:
    根据所述目标位置处的背光亮度和所述显示面板的亮度计算所述目标位置处的光穿透率;
    根据所述目标位置处的光穿透率计算所述目标位置对应的显示效率。
  9. 根据权利要求7所述的显示面板的测量方法,其中,在一个实施例中,所述背光亮度为背光源法向亮度,所述背光源法向亮度为光线出射方向垂直背光源平面所产生的亮度;显示面板亮度为出射光线垂直显示面板所产生的亮度。
  10. 根据权利要求1所述的显示面板的测量方法,其中,所述目标位置包括:显示面板中心位置处的一个点、距离中心位置第一距离的两个点或距离中心位置第二距离四个点,两个点或四个点的连线与行子像素平行。
  11. 根据权利要求1所述的显示面板的测量方法,其中,对显示面板的中心进行标记,固定并记录目标位置相对于显示面板中心的距离,设置预设的固定时间至背光稳定后,开始进行测量。
  12. 根据权利要求1所述的显示面板的测量方法,其中,所述测量方法包括:
    确定显示面板上的第一目标位置和第二目标位置,所述第一目标位置与所述第二目标位置的间距在预设距离范围内;
    在固定的外加电压下,测量所述第一目标位置的背光亮度信息和显示面板亮度,测量所述第二目标位置的背光亮度和显示面板亮度;
    根据所述第一目标位置的背光亮度信息和显示面板亮度,计算所述第一目标位置的第一穿透率;根据所述第二目标位置的背光亮度和显示面板亮度,计算所述第二目标位置的第二穿透率;
    根据所述第一穿透率和所述第二穿透率计算所述显示面板的显示效率。
  13. 一种显示面板的测量系统,包括:
    定位设备,设置为确定显示面板上符合预设条件的目标位置;
    测量设备,设置为在固定的外加电压下,测量所述目标位置处的亮度信息;
    计算设备,设置为根据所述亮度信息计算所述显示面板的显示效率。
  14. 根据权利要求13所述的显示面板的测量系统,其中,所述定位设备,还设置为确定显示面板上的第一目标位置和第二目标位置,所述第一目标位置与所述第二目标位置的连线与行子像素平行,所述第一目标位置与所述第二目标位置之间的距离在预设距离范围内。
  15. 根据权利要求14所述的显示面板的测量系统,其中,
    所述测量设备还设置为:
    测量所述第一目标位置处的第一背光亮度和第一显示面板亮度;其中,所述第一背光亮度为去除液晶面板时的第一目标位置对应的背光亮度,第一显示面板亮度为显示面板保留上偏光片和下偏光片时的显示面板的第一目标位置处的亮度;
    测量所述第二目标位置处的第二背光亮度和第二显示面板亮度;其中,所述第二背光亮度为去除液晶面板时的第二目标位置对应的背光亮度,第二显示面板亮度为显示面板保留上偏光片和下偏光片时的显示面板的第二目标位置处的亮度;
    测量所述第一目标位置处的第三显示面板亮度;其中,所述第三显示面板亮度为显示面板去除所述第一目标位置处的上偏光片时的显示面板亮度;
    测量所述第二目标位置处的第四显示面板亮度;其中,所述第四显示面板亮度为显示面板去除第二目标位置处的下偏光片时的显示面板亮度;
    测量第一目标位置处的第五显示面板亮度;其中,所述第五显示面板亮度为显示面板去除第一目标位置处的上偏光片和下偏光片时的显示面板亮度;
    测量第二目标位置处的第六显示面板亮度;其中,所述第六显示面板亮度为显示面板去除第二目标位置处的上偏光片和下偏光片时的显示面板亮度。
  16. 根据权利要求14所述的显示面板的测量系统,其中,
    所述计算设备还设置为:
    根据第一目标位置的亮度信息计算所述第一目标位置对应的第一显示效率;
    根据第二目标位置的亮度信息计算所述第二目标位置对应的第二显示效率;
    计算所述第一显示效率与所述第二显示效率的平均值,获取显示面板的显示效率。
  17. 根据权利要求14所述的显示面板的测量系统,其中,所述测量设备还设置为测量所述目标位置处的背光亮度和所述显示面板的亮度;所述背光亮度为背光源法向亮度,显示面板亮度为面板出射的法向亮度。
  18. 根据权利要求17所述的显示面板的测量系统,其中,所述系统还包括:
    第一计算器,设置为根据所述目标位置处的背光亮度和所述显示面板的亮度计算所述目标位置处的光穿透率;
    第二计算器,设置为根据所述目标位置处的光穿透率计算所述目标位置对应的显示效率。
  19. 一种显示装置,其中,包括:包括显示面板、存储器、处理器以及存储在所述存储器中并可在所述处理器上运行的计算机程序,所述处理器调用所述计算机程序时执行以下操作:
    确定显示面板上符合预设条件的目标位置;
    在固定的外加电压下,测量所述目标位置处的亮度信息;
    根据所述亮度信息计算所述显示面板的显示效率。
  20. 根据权利要求19所述的显示装置,其中,所述确定显示面板上符合预设条件的目标位置,包括:
    确定显示面板上的第一目标位置和第二目标位置,所述第一目标位置与所述第二目标位置的连线与行子像素平行,所述第一目标位置与所述第二目标位置之间的距离满足第一条件。
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