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Diffusion sheet

A diffusion sheet and scattering particle technology, applied in the field of diffusion sheets, can solve the problems of the lack of heat resistance of the diffusion sheet, the easy deformation or deterioration of the diffusion sheet, and the difficulty of the diffusion sheet to withstand high heat above 200°C, so as to meet the requirements of thinning development. effect of trends

Inactive Publication Date: 2020-03-03
PLATINUM OPTICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the diffusers are mostly made of polymer materials, the existing diffusers usually lack good heat resistance
Therefore, in the process of reflow soldering, it is difficult for the diffuser to withstand high heat above 200°C, so that the diffuser is prone to defects of deformation or deterioration

Method used

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Examples

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Embodiment Construction

[0026] The present invention is further illustrated below by means of examples, but the present invention is not limited to the scope of the examples. For the experimental methods that do not specify specific conditions in the following examples, select according to conventional methods and conditions, or according to the product instructions.

[0027] figure 1 is a schematic cross-sectional view of a diffusion sheet according to an embodiment of the present invention. see figure 1 The diffusion sheet 100 includes a glass material 110 and a plurality of scattering particles 120 , wherein the scattering particles 120 are dispersed in the glass material 110 and are all inorganic materials. Therefore, the materials constituting the diffuser 100 can all be inorganic materials. Compared with organic materials, the diffuser 100 is resistant to ultraviolet light (Ultraviolet, UV), and is less prone to deterioration after being irradiated by ultraviolet light for a long time. The ...

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Abstract

The invention relates to a diffusion sheet. The diffusion sheet includes a glass material and a plurality of scattering particles; the scattering particles are dispersed in the glass material; the scattering particles are all inorganic materials; the haze of the diffusion sheet is larger than 99%; and the thickness of the diffusion sheet ranges from 100 micrometers to 350 micrometers.

Description

technical field [0001] The invention relates to an optical element, in particular to a diffusion sheet. Background technique [0002] Existing mobile devices, such as mobile phones and tablet computers, already have screens that can automatically adjust brightness (auto-brightness). This kind of mobile device can automatically change the brightness of the screen under different light source environments, so that the screen can clearly present video images, thereby providing good display quality. The above-mentioned mobile devices are usually equipped with a photo sensor to sense the light source of the environment where the mobile device is located, and the mobile device can adjust the brightness of the screen according to the sensing result of the photo sensor. [0003] Most of the photosensors mentioned above are chip packages, which include a die, a carrier and an optical assembly, wherein the die and the optical assembly are mounted on the carrier. board. Optical asse...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/02
CPCG02B5/0242G02B5/0278G02B5/021Y10T428/24372
Inventor 吕中汉卢俊元施长志
Owner PLATINUM OPTICS TECH
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