WO2014107925A1 - 一种显示屏表面反光强度的测量方法及测量装置 - Google Patents

一种显示屏表面反光强度的测量方法及测量装置 Download PDF

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Publication number
WO2014107925A1
WO2014107925A1 PCT/CN2013/070939 CN2013070939W WO2014107925A1 WO 2014107925 A1 WO2014107925 A1 WO 2014107925A1 CN 2013070939 W CN2013070939 W CN 2013070939W WO 2014107925 A1 WO2014107925 A1 WO 2014107925A1
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Prior art keywords
screen
brightness
level
display
same
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English (en)
French (fr)
Inventor
陈黎暄
康志聪
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to US13/813,437 priority Critical patent/US9003755B2/en
Publication of WO2014107925A1 publication Critical patent/WO2014107925A1/zh
Anticipated expiration legal-status Critical
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/12—Test circuits or failure detection circuits included in a display system, as permanent part thereof
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen

Definitions

  • the present invention relates to the field of visual measurement technology, and in particular to a method and a measuring device for measuring the reflective intensity of a display screen surface.
  • the surface of the display of many existing devices is more or less reflective, and if the device is used in a relatively bright environment, the surface of the display of the device may be distinguishable by the reflected ambient light. Sexual deterioration.
  • the method of measuring brightness generally uses a brightness meter or the like, but the brightness meter cannot directly measure the reflection intensity of the display surface in a bright environment based on visual perception, and other measurement methods require certain auxiliary equipment, ordinary users. It is not easy to operate these devices.
  • the technical problem to be solved by the present invention is to provide a measuring method and a measuring device for the reflective intensity of a display screen, which can conveniently and accurately measure the reflective intensity of the screen surface.
  • a technical solution adopted by the present invention is to provide a method for measuring the reflective intensity of a display screen, comprising: placing the first screen and the second screen in the same environment, and dividing the display brightness level of the second screen.
  • N wherein N is an integer greater than 1, a light shield is provided around the front of the first screen, the first screen and the second screen are placed side by side; and at a brightness level of the second screen N level display brightness level, Adjusting the display brightness of the first screen such that the viewing brightness of the first screen and the second screen are the same; using the brightness measuring instrument to closely contact the second screen to obtain the brightness value L2 of each brightness level of all the N levels of brightness of the second screen And, at each brightness level of the second screen, using the brightness measuring instrument to closely contact the first screen to obtain the brightness value L1 of the corresponding first screen when the viewing brightness of the first screen and the second screen are the same; according to the first screen and The brightness value of the second screen is displayed to obtain the reflection intensity of the screen surface in the environment.
  • the step of acquiring the reflective intensity of the screen surface in the environment according to the brightness value of the first screen and the brightness value of the second screen includes: calculating, according to each brightness level of the second screen, the brightness L2 of the second screen and the corresponding The difference of the brightness L1 of the first screen; the average of the difference between the brightness L2 of the second screen and all the corresponding N-level display brightnesses of the brightness L1 of the corresponding first screen, the average number being the screen surface in the environment Reflective intensity.
  • the surfaces of the first screen and the second screen are the same material.
  • another technical solution adopted by the present invention is to provide a method for measuring the reflective intensity of a display screen, comprising: obtaining a brightness value when the first screen and the second screen are displayed in the same environment for display, The viewing brightness of the first screen and the second screen are the same, and the first screen is provided with a light shielding member, and the first screen and the second screen are placed side by side; and the brightness value is displayed according to the first screen and the second screen.
  • the reflective intensity of the screen surface under the environment.
  • the step of obtaining a brightness value when the first screen and the second screen are displayed in the same environment includes: dividing the display brightness level of the second screen to N levels, where N is an integer greater than 1; At a brightness level of the N-level display brightness level of the screen, the display brightness of the first screen is adjusted so that the observed brightness of the first screen and the second screen are the same; and each brightness level of all N-level brightness levels of the second screen is acquired.
  • the brightness value L2 of the first screen and the brightness value L1 of the corresponding first screen when the observed brightness of the first screen and the second screen are the same at each brightness level of the second screen.
  • the step of acquiring the reflective intensity of the screen surface in the environment according to the brightness value of the first screen and the brightness value of the second screen includes: calculating, according to each brightness level of the second screen, the brightness L2 of the second screen and the corresponding The difference of the brightness L1 of the first screen; the average of the difference between the brightness L2 of the second screen and all the corresponding N-level display brightnesses of the brightness L1 of the corresponding first screen, the average number being the screen surface in the environment Reflective intensity.
  • the step of obtaining the brightness values when the first screen and the second screen are displayed in the same environment including: in the same environment, using the brightness measuring instrument to closely contact the first screen and the second screen to obtain the first measurement The brightness value when the screen and the second screen are displayed.
  • the surfaces of the first screen and the second screen are the same material.
  • a measuring device for reflecting light intensity comprising: a brightness acquiring module, configured to acquire a first screen and a second screen placed in the same environment for display The brightness value is the same as that of the first screen and the second screen.
  • the front side of the first screen is provided with a light shielding member, and the first screen and the second screen are placed side by side; the light intensity acquiring module is used according to the first screen and the first screen
  • the brightness value of the second screen is displayed, and the reflection intensity of the screen surface in the environment is obtained.
  • the brightness obtaining module includes: a dividing unit, configured to divide the display brightness level of the second screen into N levels, where N is an integer greater than 1; and the adjusting unit is configured to display one of the brightness levels in the second screen N level At the brightness level, the display brightness of the first screen is adjusted so that the viewing brightness of the first screen and the second screen are the same; the acquiring unit is configured to acquire the brightness value L2 of each brightness level of all the N levels of the second screen. And, at each brightness level of the second screen, obtaining a brightness value L1 of the corresponding first screen when the observed brightness of the first screen and the second screen are the same.
  • the reflective intensity obtaining module includes: a difference calculating unit, configured to calculate, according to each brightness level of the second screen, a difference between the brightness L2 of the second screen and the brightness L1 of the corresponding first screen; For calculating the average of the difference between the brightness L2 of the second screen and all corresponding N-level display brightnesses of the brightness L1 of the corresponding first screen, the average is the reflection intensity of the screen surface in the environment.
  • the brightness obtaining module is specifically configured to closely contact the first screen and the second screen by using the brightness measuring instrument in the same environment to measure the brightness values when the first screen and the second screen are displayed.
  • the surfaces of the first screen and the second screen are the same material.
  • the present invention acquires the brightness value of the first screen and the second screen placed in the same environment on the premise that the viewing brightness of the first screen and the second screen are the same.
  • the brightness value wherein the first screen is provided with a light shielding member, which can effectively block the ambient light, reduce or avoid the influence on the measurement, and thereby obtain the first screen display without the influence of ambient light or close to the influence of no ambient light.
  • the method can conveniently and accurately measure the reflective intensity of the screen surface without adding additional equipment and without adding extra cost.
  • FIG. 1 is a flow chart of an embodiment of a method for measuring the surface reflection intensity of a display screen of the present invention
  • Figure 2 is The method for measuring the reflective intensity of the surface of the display screen of the present invention is a flowchart for obtaining the brightness values when the first screen and the second screen are displayed in the same environment for display;
  • FIG. 3 is a flow chart of obtaining the reflective intensity of the screen surface in the environment in an embodiment of the method for measuring the reflective intensity of the display surface of the present invention
  • Figure 4 is a schematic view showing the measurement of the surface reflection intensity of the display screen of the present invention.
  • FIG. 5 is a schematic structural view of an embodiment of a measuring device for reflecting light intensity according to the present invention.
  • FIG. 6 is a schematic structural diagram of a brightness acquiring module in an embodiment of a measuring device for reflecting light intensity according to the present invention
  • Fig. 7 is a schematic structural view of a light-reflecting intensity acquiring module in an embodiment of a measuring device for reflecting light intensity according to the present invention.
  • an embodiment of a method for measuring the reflective intensity of a display screen of the present invention includes:
  • Step 101 Acquire a brightness value when the first screen and the second screen are displayed in the same environment, and the viewing brightness of the first screen and the second screen are the same, and the first screen is provided with a light shielding member, the first screen and The second screen is placed side by side;
  • the screen is the screen of the display device, and most of the existing display devices use reflective materials such as glass.
  • the first screen and the second screen in this embodiment may adopt a screen of a general display, and are also objects to be measured or used in the embodiment of the present invention.
  • the observed brightness may be the brightness perceived by the human eye or the device at a certain distance (for example, 2.5 meters) directly in front of the first screen and the second screen.
  • the brightness observed at one time is not absolute. Therefore, the embodiment can perform multiple measurements to obtain more accurate results;
  • first screen and the second screen side by side in the same bright environment, such as a bright light, or a bright office environment, and have a blackout around the front of the first screen, such as a visor. Effectively block the effects of ambient light.
  • the observed brightness of the first screen and the second screen are the same, the brightness values when the first screen and the second screen are displayed in the bright environment are acquired.
  • Step 102 Obtain a reflective intensity of the screen surface in the environment according to the brightness value when the first screen and the second screen are displayed;
  • the brightness value when the first screen is displayed is a brightness value that is not affected by the ambient light.
  • the brightness value of the light-shielding object is displayed near the first screen to reach or reach the first screen.
  • the effect of being unaffected by ambient light; and the brightness value when the second screen is displayed is the brightness value affected by the ambient light, that is, the shading object is not set like the first screen in the front four weeks of the second screen.
  • the brightness of the screen surface in the bright environment is calculated by calculating the brightness value when the first screen and the second screen are displayed.
  • FIG. 2 is a flow chart of obtaining brightness values when the first screen and the second screen are displayed in the same environment, and the following steps are included:
  • Step S1011 dividing the display brightness level of the second screen to N levels, where N is an integer greater than 1;
  • the display brightness level of the second screen is divided into N levels, wherein the first level is the darkest, the N level is the brightest, and N is an integer greater than 1.
  • the brightness level can be divided into seven levels, which are white, gray, light gray, gray, dark gray, light black and black.
  • the gray scale can be subdivided.
  • the display brightness level of the display can be divided into 256 levels according to the gray scale of the display, and the gray scale represents the brightness from the darkest to the brightest. Hierarchical level. Of course, it is also possible to divide the display brightness of the display without according to the gray scale of the display.
  • Step S1012 adjusting a display brightness of the first screen under a brightness level of the N-level display brightness level of the second screen, so that the observed brightness of the first screen and the second screen are the same;
  • the display brightness of the first screen is adjusted, and the display brightness of the two screens is compared, so that the observed brightness of the first screen and the second screen are the same.
  • the brightness levels of the first screen and the second screen may be considered to correspond.
  • the brightness level of the second screen corresponding to each brightness level under all brightness levels of the second screen is obtained. Since the screen of the display of different materials has different reflective characteristics, in the present embodiment, the materials of the surfaces of the first screen and the second screen are the same.
  • Step S1013 Acquire a brightness value L2 of each brightness level of all N levels of brightness levels of the second screen, and, when the brightness of the first screen and the second screen are the same, at the same brightness level of the second screen.
  • the value is L1.
  • a tool for measuring brightness such as a brightness measuring instrument, may be used to closely contact the first screen and the second screen to measure the brightness value when the observed brightness of the first screen and the second screen are the same.
  • FIG. 3 is a method for obtaining the reflective intensity of the screen surface in the environment according to the brightness value of the first screen and the brightness value of the second screen.
  • the method includes the following steps:
  • Step S1021 calculating, at each brightness level of the second screen, a difference between the brightness L2 of the second screen and the brightness L1 of the corresponding first screen;
  • the brightness value of the second screen is L2
  • the brightness of the corresponding first screen is L1 when the observed brightness of the first screen and the second screen are the same, and the brightness L2 of the second screen is calculated.
  • the difference (L2-L1) of the brightness L1 of the corresponding first screen is calculated at other brightness levels of the second screen.
  • Step S1022 Calculate an average of the difference between the brightness L2 of the second screen and all the corresponding N-level display brightnesses of the brightness L1 of the corresponding first screen, and the average number is the reflection intensity of the screen surface in the environment;
  • the average number This is the reflective intensity of the screen surface in this environment.
  • the bright environment of the screen is different, such as the environment illuminated by bright lights, or the bright office environment, the reflective intensity of the screen surface is also different. Further, multiple measurements can be taken under the same bright environment to obtain a more accurate reflective intensity of the screen surface.
  • the present invention can conveniently and accurately measure the reflection intensity of the screen surface.
  • FIG. 4 is a schematic diagram of measuring the reflective intensity of the surface of the display screen of the present invention.
  • the front side of the first screen 21 is provided with a light shielding member 201
  • the second screen 22 is not provided with any light shielding member.
  • the first screen 21 and the second screen 22 can adopt the screen of the general display, and the materials of the surfaces of the two screens are the same.
  • the first screen 21 and the second screen 22 are placed side by side in the same bright environment, such as an environment illuminated by bright lights, or a medium office environment.
  • the observed brightness may be a brightness perceived by a person 23 (a human eye or a device) at a position a certain distance (for example, 2.5 meters) directly in front of the first screen 21 and the second screen 22;
  • the light emitted by the first screen 21 and the second screen 22 enters a position 23 (human eye or device) at a certain distance directly in front, and under ideal conditions, the brightness value when the first screen 21 is displayed is not affected by ambient light.
  • the periphery of the first screen 21 is provided with the effect that the light-shielding member 201 is close to or reaches the first screen 21 for display, and the brightness value is not affected by the ambient light; and when the second screen 22 is displayed, The brightness value is the brightness value affected by ambient light;
  • the display brightness level of the second screen 22 is divided into N levels (N>1), and at a brightness level of the N-level display brightness levels of the second screen 22, the display brightness of the first screen 21 is adjusted to make the first screen
  • the observed brightness of 21 and the second screen 22 is the same.
  • the brightness measurement instrument is used to closely contact the surfaces of the first screen 21 and the second screen 22 to measure the brightness values when the first screen 21 and the second screen 22 are displayed; and each of the N levels of brightness levels of the second screen 22 is acquired.
  • a brightness value L2 of a brightness level and, under each brightness level of the second screen 22, obtaining a brightness value L1 of the first screen 21 corresponding to the same brightness of the first screen 21 and the second screen 22;
  • FIG. 5 is a schematic structural diagram of an embodiment of a device for measuring the intensity of reflective light according to the present invention, which includes a brightness acquiring module 401 and a light intensity acquiring module 402, wherein:
  • the brightness obtaining module 401 is configured to acquire a brightness value when the first screen and the second screen are displayed in the same environment, and the brightness of the first screen and the second screen are the same, and the light shielding object is arranged around the first screen.
  • One screen and the second screen are placed side by side;
  • the first screen and the second screen in the present embodiment may employ a screen of a general display.
  • the observed brightness is the brightness perceived by the human eye or device at a distance (eg, 2.5 meters) at a distance directly in front of the first screen and the second screen.
  • the brightness obtaining module 401 is specifically configured to place the first screen and the second screen side by side in the same bright environment, such as an environment illuminated by bright lights, or a medium office environment, and a light shielding object is arranged around the front of the first screen. Such as visors, etc., can effectively block the influence of ambient light.
  • the observed brightness of the first screen and the second screen are the same, the brightness values when the first screen and the second screen are displayed in the bright environment are acquired.
  • the light intensity acquiring module 402 is configured to obtain, according to the brightness values when the first screen and the second screen are displayed, the reflective intensity of the screen surface in the environment;
  • the reflective intensity acquisition module 402 is specifically configured to calculate the reflective intensity of the screen surface in the bright environment according to the brightness value when the first screen and the second screen are displayed in a bright environment.
  • an embodiment of the apparatus for measuring the intensity of the light intensity of the present invention includes a dividing unit 4011, an adjusting unit 4012, and an obtaining unit 4013, wherein:
  • a dividing unit 4011 configured to divide a display brightness level of the second screen to an N level, where N is an integer greater than 1;
  • the dividing unit 4011 is specifically configured to divide the display brightness level of the second screen to N levels, wherein the first level is the darkest, the N level is the brightest, and N is an integer greater than 1.
  • the brightness level of the display may be divided into 256 levels according to the gray scale of the display.
  • the display brightness of the display may not be divided according to the gray level of the display.
  • the adjusting unit 4012 is configured to adjust a display brightness of the first screen in a brightness level of the second screen N-level display brightness level so that the observed brightness of the first screen and the second screen are the same;
  • the display brightness of the first screen is adjusted, and the display brightness of the two screens is compared, so that the observed brightness of the first screen and the second screen are the same. Since the screen of the display of different materials has different reflective characteristics, in the present embodiment, the materials of the surfaces of the first screen and the second screen are the same.
  • the obtaining unit 4013 is configured to acquire the brightness value L2 of each brightness level of all the N levels of brightness levels of the second screen, and obtain the observed brightness of the first screen and the second screen at each brightness level of the second screen. At the same time corresponding to the first screen brightness value L1;
  • the obtaining unit 4013 is specifically configured to acquire the brightness value L2 of each brightness level of all the N levels of brightness levels of the second screen, and obtain the corresponding brightness of the first screen and the second screen when the brightness of the first screen and the second screen are the same.
  • the brightness value L1 of the first screen may be used to closely contact the first screen and the second screen to measure the brightness value when the observed brightness of the first screen and the second screen are the same.
  • the light intensity obtaining module includes a difference calculating unit 4021 and a mean calculating unit 4022.
  • the difference calculation unit 4021 is configured to calculate, according to each brightness level of the second screen, a difference between the brightness L2 of the second screen and the brightness L1 of the corresponding first screen;
  • the mean value calculation unit 4022 is configured to calculate an average number of differences between the brightness L2 of the second screen and all corresponding N-level display brightnesses of the brightness L1 of the corresponding first screen, and the average number is the reflection intensity of the screen surface in the environment. .
  • the mean value calculation unit 4022 is specifically configured to: after calculating all the differences between the brightness L2 under the N-level brightness level of all the second screens and the brightness L1 of the corresponding first screen, obtain the sum of all the difference values, and take The average is the reflection intensity of the screen surface in the environment.
  • the first screen of the present invention is provided with a light shielding member, which can effectively block the ambient light, reduce or avoid the influence on the measurement, and thereby obtain the effect of no ambient light or close to no ambient light.
  • the first screen display brightness in the case, on the premise that the observed brightness of the first screen and the second screen are the same, according to the divided brightness level, the brightness value of the first screen placed in all brightness levels in the same environment and the first The brightness value of the two screens, and calculating an average of all the differences of the corresponding brightness values according to the brightness values of the first screen and the brightness values of the second screen, the average number being the reflection intensity of the screen surface in the environment. In this way, the present invention can conveniently and accurately measure the reflective intensity of the screen surface without adding additional equipment and without incurring additional costs.

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Abstract

一种显示屏表面反光强度的测量方法，包括：获取放置在同一环境下第一屏幕（21）和第二屏幕（22）进行显示时的亮度值，第一屏幕（21）和第二屏幕（22）的观察亮度相同，第一屏幕（21）前的四周设有遮光物件（201），第一屏幕（21）和第二屏幕（22）并排放置；根据第一屏幕（21）和第二屏幕（22）进行显示时的亮度值，获取该环境下的屏幕表面的反光强度。通过上述方式，能够方便、较为准确地测量出屏幕表面的反光强度。

Description

一种显示屏表面反光强度的测量方法及测量装置
【技术领域】
本发明涉及视觉测量技术领域，特别是涉及一种显示屏表面反光强度的测量方法及测量装置。
【背景技术】
现有的很多设备的显示器的表面都或多或少具备反光性，如果该设备在较为明亮的环境下使用时，该设备的显示器的表面会因为反射环境光而导致显示器显示的内容的可分辨性变差。
在这种情况下，需要知道以视觉感知为基础的显示器所反射的环境光的强度，以便根据该反光强度对显示器的亮度进行调节。目前测量亮度的方法一般使用亮度计等，但是亮度计并不能直接测量得出以视觉感知为基础的明亮环境下的显示器表面的反光强度，而其他的测量方法需要一定的辅助设备，普通的用户并不能很容易的操作这些设备。
【发明内容】
本发明主要解决的技术问题是提供一种显示屏表面反光强度的测量方法及测量装置，能够方便、较为准确地测量出屏幕表面的反光强度。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种显示屏表面反光强度的测量方法，包括：放置第一屏幕和第二屏幕在同一环境下，划分第二屏幕的显示亮度等级为N级，其中，N为大于1的整数，第一屏幕前的四周设有遮光物件，第一屏幕和第二屏幕并排放置；在第二屏幕N级显示亮度等级中的一亮度等级下，调节第一屏幕的显示亮度，以使第一屏幕和第二屏幕的观察亮度相同；使用亮度测量仪器紧密接触第二屏幕获取第二屏幕的所有N级亮度等级的每一亮度等级的亮度值L2，以及，在第二屏幕每一亮度等级下，使用亮度测量仪器紧密接触第一屏幕获取第一屏幕和第二屏幕的观察亮度相同时对应的第一屏幕的亮度值L1；根据第一屏幕和第二屏幕进行显示时的亮度值，获取该环境下的屏幕表面的反光强度。
其中，根据第一屏幕的亮度值和第二屏幕的亮度值，获取该环境下屏幕表面的反光强度的步骤，包括：在第二屏幕每一亮度等级下，计算第二屏幕的亮度L2与对应的第一屏幕的亮度L1的差值；计算第二屏幕的亮度L2与对应的第一屏幕的亮度L1的所有对应N级显示亮度的差值的平均数，平均数即为该环境下屏幕表面的反光强度。
其中，第一屏幕和第二屏幕的表面的材料相同。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种显示屏表面反光强度的测量方法，包括：获取放置在同一环境下第一屏幕和第二屏幕进行显示时的亮度值，第一屏幕和第二屏幕的观察亮度相同，第一屏幕前的四周设有遮光物件，第一屏幕和第二屏幕并排放置；根据第一屏幕和第二屏幕进行显示时的亮度值，获取该环境下的屏幕表面的反光强度。
其中，获取放置在同一环境下第一屏幕和第二屏幕进行显示时的亮度值的步骤，包括：划分第二屏幕的显示亮度等级为N级，其中，N为大于1的整数；在第二屏幕N级显示亮度等级中的一亮度等级下，调节第一屏幕的显示亮度，以使第一屏幕和第二屏幕的观察亮度相同；获取第二屏幕的所有N级亮度等级的每一亮度等级的亮度值L2，以及，在第二屏幕每一亮度等级下，获取第一屏幕和第二屏幕的观察亮度相同时对应的第一屏幕的亮度值L1。
其中，根据第一屏幕的亮度值和第二屏幕的亮度值，获取该环境下屏幕表面的反光强度的步骤，包括：在第二屏幕每一亮度等级下，计算第二屏幕的亮度L2与对应的第一屏幕的亮度L1的差值；计算第二屏幕的亮度L2与对应的第一屏幕的亮度L1的所有对应N级显示亮度的差值的平均数，平均数即为该环境下屏幕表面的反光强度。
其中，获取放置在同一环境下第一屏幕和第二屏幕进行显示时的亮度值的步骤，包括：在同一环境下，使用亮度测量仪器紧密接触第一屏幕和第二屏幕，以测量得到第一屏幕和第二屏幕进行显示时的亮度值。
其中，第一屏幕和第二屏幕的表面的材料相同。
为解决上述技术问题，本发明采用的又一个技术方案是：提供一种反光强度的测量装置，装置包括：亮度获取模块，用于获取放置在同一环境下第一屏幕和第二屏幕进行显示时的亮度值，第一屏幕和第二屏幕的观察亮度相同，第一屏幕前的四周设有遮光物件，第一屏幕和第二屏幕并排放置；反光强度获取模块，用于根据第一屏幕和第二屏幕进行显示时的亮度值，获取得到该环境下的屏幕表面的反光强度。
其中，亮度获取模块包括：划分单元，用于划分第二屏幕的显示亮度等级为N级，其中，N为大于1的整数；调节单元，用于在第二屏幕N级显示亮度等级中的一亮度等级下，调节第一屏幕的显示亮度，以使第一屏幕和第二屏幕的观察亮度相同；获取单元，用于获取第二屏幕的所有N级亮度等级的每一亮度等级的亮度值L2，以及，在第二屏幕每一亮度等级下，获取第一屏幕和第二屏幕的观察亮度相同时对应的第一屏幕的亮度值L1。
其中，反光强度获取模块包括：差值计算单元，用于在第二屏幕每一亮度等级下，计算第二屏幕的亮度L2与对应的第一屏幕的亮度L1的差值；均值计算单元，用于计算第二屏幕的亮度L2与对应的第一屏幕的亮度L1的所有对应N级显示亮度的差值的平均数，平均数即为该环境下的屏幕表面的反光强度。
其中，亮度获取模块具体用于在同一环境下，使用亮度测量仪器紧密接触第一屏幕和第二屏幕，以测量得到第一屏幕和第二屏幕进行显示时的亮度值。
其中，第一屏幕和第二屏幕的表面的材料相同。
本发明的有益效果是：区别于现有技术的情况，本发明在第一屏幕和第二屏幕的观察亮度相同的前提下，获取放置在同一环境下第一屏幕的亮度值和第二屏幕的亮度值，其中，第一屏幕的四周设有遮光物件，能够有效地阻挡环境光，减少或避免其对测量的影响，进而获得无环境光影响或接近无环境光影响情况下的第一屏幕显示亮度，同时也获得同一环境下第二屏幕有环境光影响下的显示亮度，进而可以根据第一屏幕的亮度值和第二屏幕的亮度值，计算得到该环境下的屏幕表面的反光强度，使用该方法能够方便、较为准确地测量出屏幕表面的反光强度，且不用添加额外的设备，不会增加额外的成本。
【附图说明】
图1是 本发明显示屏表面反光强度的测量方法一实施方式的流程图；
图2是 本发明显示屏表面反光强度的测量方法一实施方式中获取放置在同一环境下第一屏幕和第二屏幕进行显示时的亮度值的流程图；
图3是 本发明显示屏表面反光强度的测量方法一实施方式中获取该环境下屏幕表面的反光强度的流程图；
图4是 本发明显示屏表面反光强度的测量示意图；
图5是 本发明反光强度的测量装置一实施方式的结构示意图；
图6是 本发明反光强度的测量装置一实施方式中亮度获取模块的结构示意图；
图7是 本发明反光强度的测量装置一实施方式中反光强度获取模块的结构示意图。
【具体实施方式】
下面结合附图和实施方式对本发明进行详细说明。
请参阅图1，本发明显示屏表面反光强度的测量方法一实施方式包括：
步骤101：获取放置在同一环境下第一屏幕和第二屏幕进行显示时的亮度值，第一屏幕和第二屏幕的观察亮度相同，第一屏幕前的四周设有遮光物件，第一屏幕和第二屏幕并排放置；
屏幕为显示设备的屏幕，现有的显示设备绝大多数的屏幕都采用具备反光性的材料，例如玻璃等。本实施方式中的第一屏幕和第二屏幕可以采用一般显示器的屏幕，也是本发明实施方式中进行测量或使用的对象。观察亮度可为在第一屏幕和第二屏幕的正前方一定距离（例如2.5米）的位置人眼或设备所感知的亮度，当然，一次的观察亮度并不是绝对的。因此，本实施方式可以进行多次测量以获取较为准确的结果；
将第一屏幕和第二屏幕并排放置在同一明亮环境中，比如明亮的灯光照射下的环境，或者明亮的办公环境中等，并且第一屏幕前的四周设有遮光物件，如遮光板等，能够有效的阻挡环境光的影响。当第一屏幕和第二屏幕的观察亮度相同时，获取在该明亮环境中第一屏幕和第二屏幕进行显示时的亮度值。
步骤102：根据第一屏幕和第二屏幕进行显示时的亮度值，获取该环境下的屏幕表面的反光强度；
理想状况下，第一屏幕进行显示时的亮度值为不受环境光影响的亮度值，本实施方式中在第一屏幕前的四周设遮光物件以接近或达到第一屏幕进行显示时的亮度值不受环境光影响的效果；而第二屏幕进行显示时的亮度值为受环境光影响的亮度值，即不在第二屏幕前四周类似第一屏幕一样设置遮光物件。在明亮的环境中，根据第一屏幕和第二屏幕进行显示时的亮度值，通过计算得到在该明亮的环境下的屏幕表面的反光强度。
请参阅图2，图2是本发明获取放置在同一环境下第一屏幕和第二屏幕进行显示时的亮度值的流程图，包括以下步骤：
步骤S1011：划分第二屏幕的显示亮度等级为N级，其中，N为大于1的整数；
划分第二屏幕的显示亮度等级为N级，其中，一级最暗，N级最亮，N为大于1的整数。划分的等级越多，所能够呈现的画面效果也就越细腻。粗略的说，按照人眼在目视判读时，亮度等级可以分为七级，其为白、灰白、浅灰、灰、深灰、浅黑以及黑。但是如果借助测量仪器，灰阶可以进行细分，具体而言，可以按照显示器的灰阶将显示器的显示亮度等级进行划分为256级，灰阶代表了显示器由最暗到最亮之间不同亮度的层次级别。当然，也可以不按照显示器的灰阶将显示器的显示亮度进行划分。
步骤S1012：在第二屏幕N级显示亮度等级中的一亮度等级下，调节第一屏幕的显示亮度，以使第一屏幕和第二屏幕的观察亮度相同；
在第二屏幕N级显示亮度等级中的某一亮度等级下，调节第一屏幕的显示亮度，比较这两个屏幕的显示亮度，使得第一屏幕和第二屏幕的观察亮度相同。此时，可以认为第一屏幕和第二屏幕的亮度等级相对应。获取第二屏幕的所有亮度等级下每一亮度等级对应的第二屏幕的亮度等级。由于不同的材料的显示器的屏幕其反光的特性不一样，在本实施方式中，第一屏幕和第二屏幕的表面的材料一样。
步骤S1013：获取第二屏幕的所有N级亮度等级的每一亮度等级的亮度值L2，以及，在第二屏幕每一亮度等级下，获取第一屏幕和第二屏幕的观察亮度相同时对应的第一屏幕的亮度值L1；
获取第二屏幕的所有N级亮度等级的每一亮度等级的亮度值L2，在第二屏幕每一亮度等级下，获取第一屏幕和第二屏幕的观察亮度相同时对应的第一屏幕的亮度值L1。具体而言，可以使用亮度测量仪器等测量亮度的工具，紧密接触第一屏幕和第二屏幕，以测量得到第一屏幕和第二屏幕的观察亮度相同时的亮度值。
请参阅图3，图3是本发明根据第一屏幕的亮度值和第二屏幕的亮度值，获取该环境下屏幕表面的反光强度的方法可参阅图3，包括以下步骤：
步骤S1021：在第二屏幕每一亮度等级下，计算第二屏幕的亮度L2与对应的第一屏幕的亮度L1的差值；
在第二屏幕的一亮度等级下，第二屏幕的亮度值为L2，第一屏幕和第二屏幕的观察亮度相同时对应的第一屏幕的亮度值为L1，计算第二屏幕的亮度L2与对应的第一屏幕的亮度L1的差值（L2-L1）。计算第二屏幕的其它亮度等级下，第二屏幕的亮度L2与对应的第一屏幕的亮度L1的差值。
步骤S1022：计算第二屏幕的亮度L2与对应的第一屏幕的亮度L1的所有对应N级显示亮度的差值的平均数，平均数即为该环境下屏幕表面的反光强度；
当计算出所有第二屏幕的N级亮度等级之下的亮度L2与对应的第一屏幕的亮度L1的所有差值之后，求得其所有差值的总和，并取平均数，则该平均数即为该环境下屏幕表面的反光强度。当然，屏幕所处的明亮环境不一样，如明亮的灯光照射下的环境，或者明亮的办公环境中等，其屏幕表面的反光强度也是不一样的。进一步地，在同一明亮环境之下可以进行多次测量，以获取较为准确的屏幕表面的反光强度。
通过上述实施方式的描述，可以理解，本发明在第一屏幕和第二屏幕的观察亮度相同的前提下，获取放置在同一环境下第一屏幕的亮度值和第二屏幕的亮度值，其中，第一屏幕的四周设有遮光物件，能够有效地阻挡环境光，减少或避免其对测量的影响，并根据第一屏幕的亮度值和第二屏幕的亮度值，计算对应的亮度值的所有差值的平均数，以得到该环境下的屏幕表面的反光强度。通过上述方式本发明能够方便，较为准确地测量出屏幕表面的反光强度。
请参阅图4，图4是本发明显示屏表面反光强度的测量示意图，如图所示，第一屏幕21前的四周设有遮光物件201，而第二屏幕22前不设置任何遮光物件。其中，第一屏幕21和第二屏幕22可以采用一般显示器的屏幕，并且两屏幕的表面的材料一样。第一屏幕21和第二屏幕22并排放置在同一明亮的环境中，比如明亮的灯光照射下的环境，或者明亮的办公环境中等。观察亮度可为在第一屏幕21和第二屏幕22的正前方一定距离（例如2.5米）的位置处23（人眼或设备）所感知的亮度；
第一屏幕21和第二屏幕22发出的光进入正前方一定距离的位置处23（人眼或设备），在理想状况下，第一屏幕21进行显示时的亮度值为不受环境光影响的亮度值，本实施方式中在第一屏幕21前的四周设遮光物件201以接近或达到第一屏幕21进行显示时的亮度值不受环境光影响的效果；而第二屏幕22进行显示时的亮度值为受环境光影响的亮度值；
划分第二屏幕22的显示亮度等级为N级（N>1），在第二屏幕22的N级显示亮度等级中的一亮度等级下，调节第一屏幕21的显示亮度，以使第一屏幕21和第二屏幕22的观察亮度相同。使用亮度测量仪器紧密接触第一屏幕21和第二屏幕22的表面，以测量得到第一屏幕21和第二屏幕22进行显示时的亮度值；获取第二屏幕22的所有N级亮度等级的每一亮度等级的亮度值L2，以及，在第二屏幕22每一亮度等级下，获取第一屏幕21和第二屏幕22的观察亮度相同时对应的第一屏幕21的亮度值L1；
计算第二屏幕22的亮度L2与对应的第一屏幕21的亮度L1的差值（L2-L1），当计算出所有第二屏幕22的N级亮度等级之下的亮度L2与对应的第一屏幕21的亮度L1的所有差值之后，求得其所有差值的总和，并取平均数，则该平均数即为该环境下屏幕表面的反光强度。
请参阅图5，图5是本发明反光强度的测量装置一实施方式的结构示意图，包括亮度获取模块401和反光强度获取模块402，其中：
亮度获取模块401用于获取放置在同一环境下第一屏幕和第二屏幕进行显示时的亮度值，第一屏幕和第二屏幕的观察亮度相同，第一屏幕前的四周设有遮光物件，第一屏幕和第二屏幕并排放置；
本实施方式中的第一屏幕和第二屏幕可以采用一般显示器的屏幕。观察亮度为在第一屏幕和第二屏幕的正前方一定距离的（例如2.5米）位置人眼或设备所感知的亮度。亮度获取模块401具体用于将第一屏幕和第二屏幕并排放置在同一明亮环境中，如明亮的灯光照射下的环境，或者明亮的办公环境中等，并且第一屏幕前的四周设有遮光物件，如遮光板等，能够有效的阻挡环境光的影响。当第一屏幕和第二屏幕的观察亮度相同时，获取在该明亮环境中第一屏幕和第二屏幕进行显示时的亮度值。
反光强度获取模块402用于根据第一屏幕和第二屏幕进行显示时的亮度值，获取得到该环境下的屏幕表面的反光强度；
反光强度获取模块402具体用于在明亮的环境中，根据第一屏幕和第二屏幕进行显示时的亮度值，通过计算得到在该明亮的环境下的屏幕表面的反光强度。
请参阅图6，本发明反光强度的测量装置一实施方式中亮度获取模块包括划分单元4011、调节单元4012以及获取单元4013，其中：
划分单元4011，用于划分第二屏幕的显示亮度等级为N级，其中，N为大于1的整数；
划分单元4011具体用于划分第二屏幕的显示亮度等级为N级，其中，一级最暗，N级最亮，N为大于1的整数。具体而言，可以按照显示器的灰阶将显示器的亮度等级进行划分为256级，当然，也可以不按照显示器的灰阶将显示器的显示亮度进行划分。
调节单元4012，用于在第二屏幕N级显示亮度等级中的一亮度等级下，调节第一屏幕的显示亮度，以使第一屏幕和第二屏幕的观察亮度相同；
在第二屏幕N级显示亮度等级中的某一亮度等级下，调节第一屏幕的显示亮度，比较这两个屏幕的显示亮度，使得第一屏幕和第二屏幕的观察亮度相同。由于不同的材料的显示器的屏幕其反光的特性不一样，在本实施方式中，第一屏幕和第二屏幕的表面的材料相同。
获取单元4013，用于获取第二屏幕的所有N级亮度等级的每一亮度等级的亮度值L2，以及，在第二屏幕每一亮度等级下，获取第一屏幕和第二屏幕的观察亮度相同时对应的第一屏幕的亮度值L1；
获取单元4013具体用于获取第二屏幕的所有N级亮度等级的每一亮度等级的亮度值L2，在第二屏幕每一亮度等级下，获取第一屏幕和第二屏幕的观察亮度相同时对应的第一屏幕的亮度值L1。具体而言，可以使用亮度测量仪器等测量亮度的工具，紧密接触第一屏幕和第二屏幕，以测量得到第一屏幕和第二屏幕的观察亮度相同时的亮度值。
请参阅图7，本发明反光强度的测量装置一实施方式中反光强度获取模块包括差值计算单元4021和均值计算单元4022
差值计算单元4021，用于在第二屏幕每一亮度等级下，计算第二屏幕的亮度L2与对应的第一屏幕的亮度L1的差值；
在第二屏幕的一亮度等级下，计算第二屏幕的亮度L2与对应的第一屏幕的亮度L1的差值（L2- L1）。计算第二屏幕的其它亮度等级下，第二屏幕的亮度L2与对应的第一屏幕的亮度L1的差值。
均值计算单元4022，用于计算第二屏幕的亮度L2与对应的第一屏幕的亮度L1的所有对应N级显示亮度的差值的平均数，平均数即为该环境下的屏幕表面的反光强度。
均值计算单元4022具体用于当计算出所有第二屏幕的N级亮度等级之下的亮度L2与对应的第一屏幕的亮度L1的所有差值之后，求得其所有差值的总和，并取平均数，则该平均数即为该环境下屏幕表面的反光强度。
通过上述实施方式的描述，可以理解，本发明第一屏幕的四周设有遮光物件，能够有效地阻挡环境光，减少或避免其对测量的影响，进而获得无环境光影响或接近无环境光影响情况下的第一屏幕显示亮度，在第一屏幕和第二屏幕的观察亮度相同的前提下，根据所划分的亮度等级，获取放置在同一环境下所有亮度等级的第一屏幕的亮度值和第二屏幕的亮度值，并根据第一屏幕的亮度值和第二屏幕的亮度值，计算对应的亮度值的所有差值的平均数，该平均数为该环境下的屏幕表面的反光强度。通过这种方式本发明能够方便，较为准确地测量出屏幕表面的反光强度，并且不用添加额外的设备，不会增加额外的成本。
以上所述仅为本发明的实施方式，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (13)

  1. 一种显示屏表面反光强度的测量方法，其中，包括：
    放置第一屏幕和第二屏幕在同一环境下，划分所述第二屏幕的显示亮度等级为N级，其中，N为大于1的整数，所述第一屏幕前的四周设有遮光物件，所述第一屏幕和所述第二屏幕并排放置；
    在所述第二屏幕N级显示亮度等级中的一亮度等级下，调节所述第一屏幕的显示亮度，以使所述第一屏幕和所述第二屏幕的观察亮度相同；
    使用亮度测量仪器紧密接触所述第二屏幕获取所述第二屏幕的所有N级亮度等级的每一亮度等级的亮度值L2，以及，在所述第二屏幕每一亮度等级下，使用亮度测量仪器紧密接触所述第一屏幕获取所述第一屏幕和所述第二屏幕的观察亮度相同时对应的所述第一屏幕的亮度值L1；
    根据所述第一屏幕和所述第二屏幕进行显示时的亮度值，获取该环境下的屏幕表面的反光强度。
  2. 根据权利要求1所述的方法，其中，所述根据第一屏幕的亮度值和所述第二屏幕的亮度值，获取该环境下屏幕表面的反光强度的步骤，包括：
    在所述第二屏幕每一亮度等级下，计算所述第二屏幕的亮度L2与对应的所述第一屏幕的亮度L1的差值；
    计算所述第二屏幕的亮度L2与对应的所述第一屏幕的亮度L1的所有对应N级显示亮度的差值的平均数，所述平均数即为该环境下屏幕表面的反光强度。
  3. 根据权利要求1所述的方法，其中，所述第一屏幕和所述第二屏幕的表面的材料相同。
  4. 一种显示屏表面反光强度的测量方法，其中，包括：
    获取放置在同一环境下第一屏幕和第二屏幕进行显示时的亮度值，所述第一屏幕和所述第二屏幕的观察亮度相同，所述第一屏幕前的四周设有遮光物件，所述第一屏幕和所述第二屏幕并排放置；
    根据所述第一屏幕和所述第二屏幕进行显示时的亮度值，获取该环境下的屏幕表面的反光强度。
  5. 根据权利要求4所述的方法，其中，所述获取放置在同一环境下第一屏幕和第二屏幕进行显示时的亮度值的步骤，包括：
    划分所述第二屏幕的显示亮度等级为N级，其中，N为大于1的整数；
    在所述第二屏幕N级显示亮度等级中的一亮度等级下，调节所述第一屏幕的显示亮度，以使所述第一屏幕和所述第二屏幕的观察亮度相同；
    获取所述第二屏幕的所有N级亮度等级的每一亮度等级的亮度值L2，以及，在所述第二屏幕每一亮度等级下，获取所述第一屏幕和所述第二屏幕的观察亮度相同时对应的所述第一屏幕的亮度值L1。
  6. 根据权利要求5所述的方法，其中，所述根据第一屏幕的亮度值和所述第二屏幕的亮度值，获取该环境下屏幕表面的反光强度的步骤，包括：
    在所述第二屏幕每一亮度等级下，计算所述第二屏幕的亮度L2与对应的所述第一屏幕的亮度L1的差值；
    计算所述第二屏幕的亮度L2与对应的所述第一屏幕的亮度L1的所有对应N级显示亮度的差值的平均数，所述平均数即为该环境下屏幕表面的反光强度。
  7. 根据权利要求4所述的方法，其中，所述获取放置在同一环境下第一屏幕和第二屏幕进行显示时的亮度值的步骤，包括：
    在同一环境下，使用亮度测量仪器紧密接触所述第一屏幕和所述第二屏幕，以测量得到所述第一屏幕和所述第二屏幕进行显示时的亮度值。
  8. 根据权利要求4所述的方法，其中，所述第一屏幕和所述第二屏幕的表面的材料相同。
  9. 一种反光强度的测量装置，其中，所述装置包括：
    亮度获取模块，用于获取放置在同一环境下第一屏幕和第二屏幕进行显示时的亮度值，所述第一屏幕和所述第二屏幕的观察亮度相同，所述第一屏幕前的四周设有遮光物件，所述第一屏幕和所述第二屏幕并排放置；
    反光强度获取模块，用于根据所述第一屏幕和所述第二屏幕进行显示时的亮度值，获取得到该环境下的屏幕表面的反光强度。
  10. 根据权利要求9所述的装置，其中，所述亮度获取模块包括：
    划分单元，用于划分所述第二屏幕的显示亮度等级为N级，其中，N为大于1的整数；
    调节单元，用于在所述第二屏幕N级显示亮度等级中的一亮度等级下，调节所述第一屏幕的显示亮度，以使所述第一屏幕和所述第二屏幕的观察亮度相同；
    获取单元，用于获取所述第二屏幕的所有N级亮度等级的每一亮度等级的亮度值L2，以及，在所述第二屏幕每一亮度等级下，获取所述第一屏幕和所述第二屏幕的观察亮度相同时对应的所述第一屏幕的亮度值L1。
  11. 根据权利要求10所述的装置，其中，所述反光强度获取模块包括：
    差值计算单元，用于在所述第二屏幕每一亮度等级下，计算所述第二屏幕的亮度L2与对应的所述第一屏幕的亮度L1的差值；
    均值计算单元，用于计算所述第二屏幕的亮度L2与对应的所述第一屏幕的亮度L1的所有对应N级显示亮度的差值的平均数，所述平均数即为该环境下屏幕表面的反光强度。
  12. 根据权利要求9所述的装置，其中，所述亮度获取模块具体用于在同一环境下，使用亮度测量仪器紧密接触所述第一屏幕和所述第二屏幕，以测量得到所述第一屏幕和所述第二屏幕进行显示时的亮度值。
  13. 根据权利要求9所述的装置，其中，所述第一屏幕和所述第二屏幕的表面的材料相同。
PCT/CN2013/070939 2013-01-12 2013-01-24 一种显示屏表面反光强度的测量方法及测量装置 Ceased WO2014107925A1 (zh)

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