Visual angle measuring method of liquid crystal display device

A technology of a liquid crystal display device and a measurement method, applied in nonlinear optics, instruments, optics, etc., can solve problems such as objective evaluation standards, inability to be used as product quality, and differences in observation results, and achieve the effect of avoiding subjective influencing factors

Inactive Publication Date: 2018-06-29
KUSN INFOVISION OPTOELECTRONICS
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  • Abstract
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Problems solved by technology

However, there is a certain subjectivity in human eye observation. For example, the picture is blurred from a certain angle, but it is faintly visible, and the perception of different observation individuals is different, resulting in differences and fluctuations in observation results, making human eye observation only possible. It is used for preliminary judgment and cannot be used as an objective criterion for product quality

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  • Visual angle measuring method of liquid crystal display device
  • Visual angle measuring method of liquid crystal display device
  • Visual angle measuring method of liquid crystal display device

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Embodiment Construction

[0019] In order to further illustrate the technical means and functions adopted by the present invention to achieve the intended purpose of the invention, the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0020] It should be noted that the narrow viewing angle measurement method provided by the present invention is mainly used for but not limited to measuring HVA (Hybrid Viewing Angle, also referred to as hybrid viewing angle) liquid crystal display devices.

[0021] Such as figure 1 As shown, the method for measuring the viewing angle of a liquid crystal display device provided by the present invention includes the following steps:

[0022] Step S1: Place the test piece on the optical measuring machine so that the center point of the test piece coincides with the measuring center point of the optical measuring machine;

[0023] Step S2: Collect the XY chromaticity values ​​at multiple measuremen...

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Abstract

The invention provides a visual angle measuring method of a liquid crystal display device, comprising: placing a test piece on an optical measuring bench, and allowing the center of the test piece tocoincide with a measuring center of the optical measuring bench; acquiring, in a preset angle range, XY chromatic values of multiple measuring points of a displayed picture of the test piece at different view angles; calculating NTSC value of each measuring point according to the acquired XY chromatic values; using a view angle corresponding to the measuring point having the NTSC value of 1 as a visual angle boundary value of the test piece. The method provided herein allows the visual angle of the liquid crystal display device to be objectively measured, so that subject influencing factors from manual measurement are avoided.

Description

technical field [0001] The invention relates to the field of display panel detection, in particular to a method for measuring a viewing angle of a liquid crystal display device. Background technique [0002] With the wide application of liquid crystal displays in life and work, people have higher and higher requirements for the viewing angle of liquid crystal displays. For example, when using a mobile phone or a notebook computer in a public place, it is hoped that the LCD has a smaller viewing angle to protect one's privacy, and when using a mobile phone or a notebook computer at home, it is hoped that the LCD display has a larger viewing angle for convenience. Multiple people watch the video together. [0003] In order to ensure that the viewing angle of the liquid crystal display can meet the required requirements, it is necessary to measure the viewing angle characteristics of the liquid crystal display during the processing, and the existing measurement method is to us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13
CPCG02F1/1309
Inventor 陆玉花徐鸣鸽何淮王冰清董雷
Owner KUSN INFOVISION OPTOELECTRONICS
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