WO2020248355A1 - 显示装置及调整显示装置色差的方法 - Google Patents

显示装置及调整显示装置色差的方法 Download PDF

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Publication number
WO2020248355A1
WO2020248355A1 PCT/CN2019/100563 CN2019100563W WO2020248355A1 WO 2020248355 A1 WO2020248355 A1 WO 2020248355A1 CN 2019100563 W CN2019100563 W CN 2019100563W WO 2020248355 A1 WO2020248355 A1 WO 2020248355A1
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Prior art keywords
color difference
display device
difference adjustment
range
color
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PCT/CN2019/100563
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English (en)
French (fr)
Inventor
郑净远
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惠州市华星光电技术有限公司
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Priority to US16/492,461 priority Critical patent/US11314080B2/en
Publication of WO2020248355A1 publication Critical patent/WO2020248355A1/zh

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0025—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration
    • G02B27/005—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration for correction of secondary colour or higher-order chromatic aberrations
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2003—Display of colours
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
    • G09G5/026—Control of mixing and/or overlay of colours in general
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/12—Synchronisation between the display unit and other units, e.g. other display units, video-disc players
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/02—Composition of display devices
    • G09G2300/026—Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0242—Compensation of deficiencies in the appearance of colours
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0693—Calibration of display systems

Definitions

  • the present invention relates to the field of display technology, and in particular to a display device and a method for adjusting the color difference of the display device.
  • Fig. 1 is a schematic diagram of a conventional display device.
  • the display device 1 includes a plurality of spliced display screens 10.
  • the existing display device 1 there is a color difference between the display screens 10, which makes the display screens uncoordinated.
  • the above method is not only time-consuming, but also requires professionals to complete.
  • the chromaticity of the other display screens 10 must also be adjusted together, resulting in a substantial increase in maintenance costs.
  • the object of the present invention is to provide a display device and a method for adjusting the color difference of the display device, which can effectively adjust the chromaticity of the display device, thereby improving the problem of color difference.
  • the present invention provides a method for adjusting the color difference of a display device.
  • the display device includes a plurality of spliced display screens.
  • the method includes: defining a color difference tolerance range; and determining according to the color difference of the plurality of display screens.
  • the color difference variation range of the display device define multiple color difference adjustment levels according to the color difference tolerance range and the color difference variation range; set color compensation values corresponding to each of the color difference adjustment levels; and use the multiple One of the display screens is the basis for comparison. For each of the display screens, a corresponding color difference adjustment level is selected, and the color compensation value corresponding to the selected color difference adjustment level is input.
  • the color difference adjustment range of the highest color difference adjustment level is the upper limit value of the color difference variation range plus the upper limit value of the color difference tolerance range.
  • the color difference adjustment range of the second high color difference adjustment level is the upper limit of the color difference variation range.
  • the color difference adjustment range of the intermediate color difference adjustment level is zero.
  • the color difference adjustment range of the second low-level color difference adjustment level is the lower limit of the color difference variation range.
  • the color difference adjustment range of the lowest color difference adjustment level is the lower limit of the color difference variation range minus the lower limit of the color difference tolerance range.
  • the color compensation value corresponds to a set of red, blue, and green settings.
  • the present invention also provides a display device, including: a plurality of spliced display screens; a processing unit configured to: define a color difference tolerance range; and determine the display device according to the color difference of the plurality of display screens The color difference variation range; define a plurality of color difference adjustment levels according to the color difference tolerance range and the color difference variation range; set the color compensation value corresponding to each color difference adjustment level; and use one of the plurality of display screens One is the basis for comparison. For each of the display screens, the corresponding color difference adjustment level is selected, and the color compensation value corresponding to the selected color difference adjustment level is input; and a memory is used to store the color compensation value.
  • the processing unit selects the corresponding color difference adjustment level through an external trigger command, and the external trigger command comes from one of a remote control, a computer, a dial, and a button.
  • the memory is one of read-only memory, random access memory, flash memory, hard disk, and optical disk.
  • the invention can effectively adjust the chromaticity of the display device, thereby improving the problem of chromatic aberration.
  • Figure 1 is a schematic diagram of an existing display device
  • Figure 2 is a flowchart of a method for adjusting the color difference of a display device according to an embodiment of the present invention
  • Figure 3 is a chromatic aberration contour map provided by an embodiment of the present invention.
  • Figure 4 is a chromaticity coordinate diagram of a display device provided by an embodiment of the present invention.
  • Figure 5 is a color difference adjustment grade table of a display device provided by an embodiment of the present invention.
  • FIG. 6 is a functional block diagram of a display device provided by an embodiment of the present invention.
  • the display device includes a plurality of spliced display screens.
  • the method for adjusting the color difference of a display device of the present invention includes the following steps:
  • Step S01 Define the color difference tolerance range.
  • FIG. 3 is a color difference contour map provided by an embodiment of the present invention.
  • the color difference tolerance range (xx1, yy1) is defined as (-0.002, -0.004) to (+0.002, +0.004).
  • the chromatic aberration tolerance range (xx1, yy1) is not easily perceptible by human eyes.
  • Step S02 Determine the color difference variation range of the display device according to the color difference of the multiple display screens.
  • FIG. 4 is a chromaticity coordinate diagram of a display device provided by an embodiment of the present invention.
  • the color difference variation range (xx2, yy2) of the display device is determined to be (-0.002, -0.004) to (+0.002, +0.004).
  • the color difference variation range (xx2, yy2) of the display device is (-0.002, -0.004).
  • the color difference variation range (xx2, yy2) of the display device is (+0.002, +0.004).
  • Step S03 Define multiple color difference adjustment levels according to the color difference tolerance range and the color difference variation range.
  • FIG. 5 is a color difference adjustment level table of the display device according to an embodiment of the present invention.
  • the color difference adjustment range of the highest color difference adjustment level C1 is (+0.004, +0.008), which is the upper limit of the color difference variation range (+0.002, +0.004) plus the color difference tolerance The upper limit of the range (+0.002,+0.004).
  • the color difference adjustment range of the second high color difference adjustment level C2 is (+0.002, +0.004), which is the upper limit of the color difference variation range (+0.002, +0.004).
  • the color difference adjustment range of the intermediate color difference adjustment level C3 is zero.
  • the color difference adjustment range of the second low color difference adjustment level C4 is (-0.002, -0.004), which is the lower limit of the color difference variation range (-0.002, -0.004).
  • the color difference adjustment range of the lowest color difference adjustment level C5 is (-0.004, -0.008), which is the lower limit of the color difference variation range (-0.002, -0.004) minus the lower limit of the color difference tolerance range ( -0.002, -0.004).
  • Step S04 setting a color compensation value corresponding to each of the color difference adjustment levels.
  • the color compensation value corresponds to a set of red, blue, and green set values.
  • the color compensation value of the highest color difference adjustment level C1 has higher brightness and saturation than the color compensation value of the lowest color difference adjustment level C5.
  • Step S05 using one of the plurality of display screens as a comparison basis, for each of the display screens, select a corresponding color difference adjustment level, and input a color compensation value corresponding to the selected color difference adjustment level. For example, taking the display with the strongest color as the comparison basis, for the display with the weakest color to the display with strong color, the color difference adjustment level from high to low can be selected, so that the multiple displays There is no color difference between the screens.
  • FIG. 6 is a functional block diagram of a display device provided by an embodiment of the present invention.
  • the display device 2 includes a plurality of spliced display screens 20, a processing unit 21 and a memory 22.
  • the processing unit 21 is configured to perform the following steps:
  • the processing unit 21 can select the corresponding color difference adjustment level through an external trigger command, where the external trigger command comes from one of a remote control, a computer, a dial, and a button.
  • the memory 22 is used to store the color compensation value.
  • the color compensation value corresponds to a set of red, blue, and green set values.
  • the memory 22 is one of a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a flash memory (Flash Memory), a hard disk, and an optical disk.
  • the present invention provides a display device and a method for adjusting the color difference of the display device, mainly by selecting the corresponding color difference adjustment level for each display screen, and inputting the color compensation value corresponding to the selected color difference adjustment level,
  • the chromaticity of the display device can be effectively adjusted, thereby improving the problem of chromatic aberration.
  • the invention provides a display device and a method for adjusting the color difference of the display device, which can effectively adjust the chromaticity of the display device, thereby improving the problem of color difference.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Multimedia (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Processing Of Color Television Signals (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

一种调整显示装置色差的方法，包括：定义色差容忍范围；根据多个显示屏的色差，决定显示装置的色差变动范围；根据色差容忍范围和色差变动范围来定义多个色差调整档次；设定对应于各色差调整档次的颜色补偿值；以及以多个显示屏的其中一个为比较基础，对于各显示屏，选择对应的色差调整档次，并输入所选择的色差调整档次所对应的颜色补偿值。

Description

显示装置及调整显示装置色差的方法 技术领域
本发明涉及显示技术领域，尤其涉及一种显示装置及调整显示装置色差的方法。
 背景技术
图1为现有显示装置的示意图。如图1所示，显示装置1包括多个拼接的显示屏10。对于现有显示装置1，各显示屏10之间存有色差,而使得显示画面不协调。为了让显示画面协调，必须手动调整各显示屏10的红、蓝、绿三原色设定值，也就是，通过白平衡调整来缩小各显示屏10的色差。上述方式不仅费时，而且需要专业人员才能完成。同时,若其中一片显示屏10因老化需要更换时，则其他显示屏10的色度也必须全部一起调整, 导致维护成本大幅增加。
因此，有必要提供一种显示装置及调整显示装置色差的方法，以解决上述问题。
 技术问题
对于现有显示装置，各显示屏之间存有色差,而使得显示画面不协调。
 技术解决方案
本发明的目的在于提供一种显示装置及调整显示装置色差的方法，可以有效调整显示装置的色度，从而改善色差的问题。
为实现上述目的，本发明提供一种调整显示装置色差的方法，所述显示装置包括多个拼接的显示屏，所述方法包括：定义色差容忍范围；根据所述多个显示屏的色差，决定所述显示装置的色差变动范围；根据所述色差容忍范围和所述色差变动范围来定义多个色差调整档次；设定对应于各所述色差调整档次的颜色补偿值；以及以所述多个显示屏的其中一个为比较基础，对于各所述显示屏，选择对应的色差调整档次，并输入所选择的色差调整档次所对应的颜色补偿值。
在一些实施例中，最高位色差调整档次的色差调整幅度为所述色差变动范围的上限值加上所述色差容忍范围的上限值。
在一些实施例中，第二高位色差调整档次的色差调整幅度为所述色差变动范围的上限值。
在一些实施例中，中间位色差调整档次的色差调整幅度为零。
在一些实施例中，第二低位色差调整档次的色差调整幅度为所述色差变动范围的下限值。
在一些实施例中，最低位色差调整档次的色差调整幅度为所述色差变动范围的下限值减去所述色差容忍范围的下限值。
在一些实施例中，所述颜色补偿值对应于一组红色、蓝色和绿色的设定值。
为实现上述目的，本发明还提供一种显示装置，包括：多个拼接的显示屏；处理单元，被配置为：定义色差容忍范围；根据所述多个显示屏的色差，决定所述显示装置的色差变动范围；根据所述色差容忍范围和所述色差变动范围来定义多个色差调整档次；设定对应于各所述色差调整档次的颜色补偿值；以及以所述多个显示屏的其中一个为比较基础，对于各所述显示屏，选择对应的色差调整档次，并输入所选择的色差调整档次所对应的颜色补偿值；以及存储器，用于储存所述颜色补偿值。
在一些实施例中，所述处理单元透过外部触发指令选择所述对应的色差调整档次，所述外部触发指令系来自于摇控器、电脑、拨码器、按钮的其中一种装置。
在一些实施例中，所述存储器为只读存储器、随机存取存储器、闪存、硬盘、光盘的其中一种。
 有益效果
本发明可以有效调整显示装置的色度，从而改善色差的问题。
 附图说明
为让本发明的特征以及技术内容能更明显易懂，请参阅以下有关本发明的详细说明与附图，然而附图仅提供参考用，并非用来对本发明加以限制。
图1为现有显示装置的示意图;
图2为本发明实施例提供的调整显示装置色差的方法流程图;
图3为本发明实施例提供的色差等高线图;
图4为本发明实施例提供的显示装置的色度座标图;
图5为本发明实施例提供的显示装置的色差调整档次表;
图6为本发明实施例提供的显示装置的功能框图。
 本发明的实施方式
为了使本发明的目的、技术手段及其效果更加清楚明确，以下将结合附图对本发明作进一步地阐述。应当理解，此处所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例，并不用于限定本发明。
图2为本发明实施例提供的调整显示装置色差的方法流程图。在本实施例中，所述显示装置包括多个拼接的显示屏。本发明调整显示装置色差的方法包括如下步骤：
步骤S01、定义色差容忍范围。请参考图3，其为本发明实施例提供的色差等高线图。在本实施例中，所述色差容忍范围(xx1,yy1)定义为(-0.002,-0.004)~(+0.002,+0.004)。所述色差容忍范围(xx1,yy1)不容易被人眼所察觉。
步骤S02、根据所述多个显示屏的色差，决定所述显示装置的色差变动范围。请参考图4，其为本发明实施例提供的显示装置的色度座标图。在本实施例中，所述显示装置的色差变动范围(xx2,yy2)被决定为(-0.002,-0.004)~(+0.002,+0.004)。尤其是，对色度A而言，所述显示装置的色差变动范围(xx2,yy2)为(-0.002,-0.004)。反之，对色度B而言，所述显示装置的色差变动范围(xx2,yy2)为(+0.002,+0.004)。
步骤S03、根据所述色差容忍范围和所述色差变动范围来定义多个色差调整档次。请参考图5，其为本发明实施例提供的显示装置的色差调整档次表。在本实施例中，最高位色差调整档次C1的色差调整幅度为(+0.004,+0.008)，亦即为所述色差变动范围的上限值(+0.002,+0.004)加上所述色差容忍范围的上限值(+0.002,+0.004)。第二高位色差调整档次C2的色差调整幅度为(+0.002,+0.004)，亦即为所述色差变动范围的上限值(+0.002,+0.004)。中间位色差调整档次C3的色差调整幅度为零。第二低位色差调整档次C4的色差调整幅度为(-0.002,-0.004)，亦即为所述色差变动范围的下限值(-0.002,-0.004)。最低位色差调整档次C5的色差调整幅度为(-0.004,-0.008)，亦即为所述色差变动范围的下限值(-0.002,-0.004)减去所述色差容忍范围的下限值(-0.002,-0.004)。
步骤S04、设定对应于各所述色差调整档次的颜色补偿值。具体地，所述颜色补偿值对应于一组红色、蓝色和绿色的设定值。通常，最高位色差调整档次C1的颜色补偿值相较于最低位色差调整档次C5的颜色补偿值具有较高的亮度及饱和度。
步骤S05、以所述多个显示屏的其中一个为比较基础，对于各所述显示屏，选择对应的色差调整档次，并输入所选择的色差调整档次所对应的颜色补偿值。举例来说，以色彩最强的显示屏为比较基础，可对于从色彩最弱的显示屏开始到色彩较强的显示屏，选择由高位到低位的色差调整档次，如此使得所述多个显示屏之间没有色差存在。
图6为本发明实施例提供的显示装置的功能框图。如图6所示，显示装置2包括多个拼接的显示屏20、处理单元21和存储器22。处理单元21被配置为执行以下步骤：
首先，定义色差容忍范围；
其次，根据多个显示屏20的色差，决定显示装置2的色差变动范围；
接下来，根据所述色差容忍范围和所述色差变动范围来定义多个色差调整档次；
接下来，设定对应于各所述色差调整档次的颜色补偿值；以及
最后，以多个显示屏20的其中一个为比较基础，对于各显示屏20，选择对应的色差调整档次，并输入所选择的色差调整档次所对应的颜色补偿值。在一些实施例中，处理单元21可透过外部触发指令选择所述对应的色差调整档次，其中所述外部触发指令系来自于摇控器、电脑、拨码器、按钮的其中一种装置。
再者，存储器22用于储存所述颜色补偿值。具体地，所述颜色补偿值对应于一组红色、蓝色和绿色的设定值。在一些实施例中，存储器22为只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、闪存(Flash Memory)、硬盘、光盘的其中一种。
综上所述，本发明提供的一种显示装置及调整显示装置色差的方法, 主要通过对于各显示屏，选择对应的色差调整档次，并输入所选择的色差调整档次所对应的颜色补偿值，可以有效调整显示装置的色度，从而改善色差的问题。
应当理解的是，本发明的应用不限于上述的举例，对本领域普通技术人员来说，可以根据上述说明加以改进或变换，所有这些改进和变换都应属于本发明所附权利要求的保护范围。
 工业实用性
本发明提供一种显示装置及调整显示装置色差的方法,可以有效调整显示装置的色度，从而改善色差的问题。

Claims (10)

  1. 一种调整显示装置色差的方法，所述显示装置包括多个拼接的显示屏，所述方法包括：
    定义色差容忍范围；
    根据所述多个显示屏的色差，决定所述显示装置的色差变动范围；
    根据所述色差容忍范围和所述色差变动范围来定义多个色差调整档次；
    设定对应于各所述色差调整档次的颜色补偿值；以及
    以所述多个显示屏的其中一个为比较基础，对于各所述显示屏，选择对应的色差调整档次，并输入所选择的色差调整档次所对应的颜色补偿值。
  2. 如权利要求1所述的方法，其中，最高位色差调整档次的色差调整幅度为所述色差变动范围的上限值加上所述色差容忍范围的上限值。
  3. 如权利要求1所述的方法，其中，第二高位色差调整档次的色差调整幅度为所述色差变动范围的上限值。
  4. 如权利要求1所述的方法，其中，中间位色差调整档次的色差调整幅度为零。
  5. 如权利要求1所述的方法，其中，第二低位色差调整档次的色差调整幅度为所述色差变动范围的下限值。
  6. 如权利要求1所述的方法，其中，最低位色差调整档次的色差调整幅度为所述色差变动范围的下限值减去所述色差容忍范围的下限值。
  7. 如权利要求1所述的方法，其中，所述颜色补偿值对应于一组红色、蓝色和绿色的设定值。
  8. 一种显示装置，包括：
    多个拼接的显示屏；
    处理单元，被配置为：
    定义色差容忍范围；
    根据所述多个显示屏的色差，决定所述显示装置的色差变动范围；
    根据所述色差容忍范围和所述色差变动范围来定义多个色差调整档次；
    设定对应于各所述色差调整档次的颜色补偿值；以及
    以所述多个显示屏的其中一个为比较基础，对于各所述显示屏，选择对应的色差调整档次，并输入所选择的色差调整档次所对应的颜色补偿值；以及
    存储器，用于储存所述颜色补偿值。
  9. 如权利要求8所述的显示装置，其中，所述处理单元透过外部触发指令选择所述对应的色差调整档次，所述外部触发指令系来自于摇控器、电脑、拨码器、按钮的其中一种装置。
  10. 如权利要求8所述的显示装置，其中，所述存储器为只读存储器、随机存取存储器、闪存、硬盘、光盘的其中一种。
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