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Light incident efficiency measurement device and light incident efficiency measurement method

A technology of light incident efficiency, measuring device, applied in the direction of measuring device, photometry, optical radiation measurement, etc.

Active Publication Date: 2016-01-20
BEIJING BOE DISPLAY TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, for the fourth point, the light incident efficiency of the light guide plate, there is no device or method for quantitative analysis and evaluation in the prior art

Method used

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  • Light incident efficiency measurement device and light incident efficiency measurement method
  • Light incident efficiency measurement device and light incident efficiency measurement method
  • Light incident efficiency measurement device and light incident efficiency measurement method

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Embodiment Construction

[0065] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Apparently, the described embodiments are some preferred embodiments of the present invention, but not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative effort shall fall within the protection scope of the present invention.

[0066] Please refer to Figure 6 , Figure 6 Schematic diagram of the structure of the light incident efficiency measurement device provided by the embodiment of the present invention.

[0067] Such as Figure 6 As shown, the light incident efficiency measurement device provided in the embodiment of the present invention includes an analog light source, one side of the simulated light sou...

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Abstract

The invention discloses a light inlet efficiency measurement device which comprises a simulation light source with an adjustable slit unit. Different LED packages are simulated by adjusting the adjustable slit unit, and a platform for bearing a light guiding plate is arranged on one side of the adjustable slit unit. The light inlet efficiency measurement device further comprises a light luminance measurement instrument located above the platform, and the light luminance measurement instrument is used for measuring a luminance value of a certain fixed point on the light guiding plate. The light inlet efficiency ratio is obtained by comparing the luminous values measured at two times, and therefore quantitative measurement evaluation on the light inlet efficiency of different-thickness light guiding plates corresponding to the different LED packages is achieved. The invention further discloses a light inlet efficiency measurement method.

Description

technical field [0001] The invention relates to a light incident efficiency measurement device, in particular to a light incident efficiency measurement device for different LED packages in a backlight module to different light guide plates and a measurement method for measuring light incident efficiency using the measurement device. Background technique [0002] A liquid crystal module mainly includes a liquid crystal panel and a backlight. Among them, the backlight emits uniform surface light, and the light is transmitted to our eyes through the liquid crystal panel. The function of the liquid crystal panel is to process the light by pixel to display images. As we all know, the brightness of the liquid crystal module is a relatively important indicator, and after the transmittance of the liquid crystal panel is basically fixed, the brightness of the liquid crystal module mainly depends on the backlight source. Please refer to figure 1 , figure 1 It is a structural schem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J1/00G01J1/08G01J1/10
Inventor 颜凯柏玲鹿堃布占场
Owner BEIJING BOE DISPLAY TECH CO LTD