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Optical measurement method and system for liquid crystal display panel

A liquid crystal display panel and measurement technology, applied in optics, nonlinear optics, testing optical performance, etc., can solve problems such as time-consuming and labor-intensive

Active Publication Date: 2020-10-23
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Claims
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Problems solved by technology

[0005] The embodiment of the present application provides an optical measurement method and measurement system for a liquid crystal display panel, which can greatly save the verification time and resources of the polarizer in the liquid crystal display panel, and improve the efficiency of introducing the polarizer into products to solve the existing problems. The optical measurement method and measurement system of liquid crystal display panels are time-consuming and labor-intensive in the current verification process of introducing polarizers into liquid crystal products

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  • Optical measurement method and system for liquid crystal display panel
  • Optical measurement method and system for liquid crystal display panel
  • Optical measurement method and system for liquid crystal display panel

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Embodiment Construction

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

[0029] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the a...

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Abstract

The invention discloses an optical measurement method and system for a liquid crystal display panel. The optical measurement method comprises the following steps: respectively measuring a parallel penetration spectrum MD0 value and a vertical penetration spectrum TD0 value of a reference polaroid by adopting polaroid monomer optical measurement equipment; respectively calculating a monomer penetration rate S value and a parallel penetration rate TPOL value of the reference polaroid according to the MD0 value and the TD0 value; measuring the total value of the actual penetration rate T of the liquid crystal display panel deviating from the reference polaroid through liquid crystal display panel penetration rate measuring equipment, and calculating the penetration rate Tw / oPOL value of the film layer material except the reference polaroid; respectively measuring a parallel penetration frequency spectrum MD1 value and a vertical penetration frequency spectrum TD1 value of a target polaroid by adopting the polaroid monomer optical measurement equipment; calculating a single body penetration rate S1 value and a parallel penetration rate TPOL1 value of the target polaroid; and finally, calculating the total value of the actual penetration rate Tnew of the liquid crystal display panel to which the target polaroid is attached through the known value.

Description

technical field [0001] The present application relates to the field of display technology, in particular to an optical measurement method and a measurement system for a liquid crystal display panel. Background technique [0002] Currently, commonly used liquid crystal panel display modes mainly include a VA (Vertical alignment, vertical alignment) mode. Take VA mode as an example: VA display is a vertically aligned normally black mode, and the absorption axes of the polarizers on the upper and lower substrates are vertically aligned. The principle of VA liquid crystal display is based on the characteristic that the light transmittance of liquid crystal changes with the magnitude of the applied voltage. When the light passes through the polarizer of the lower substrate (array substrate), it becomes linearly polarized light, and the polarization direction is consistent with the transmission direction of the lower polarizer. When no voltage is applied, the light will not chan...

Claims

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Application Information

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IPC IPC(8): G02F1/13G01M11/02
CPCG02F1/1309G01M11/02
Inventor 海博
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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