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Optical device

A technology of optical devices and light-emitting devices, applied in optics, optical components, identification devices, etc., can solve problems such as increased production costs, insufficient backlight efficiency, and reduced production yields

Inactive Publication Date: 2021-08-13
INNOLUX CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, if the blue light passes through the diffusion layer and then enters the photoluminescent film after the energy is attenuated, the efficiency of the backlight may be insufficient.
In addition, the size of the photoluminescent film is generally the same as that of the panel. When the width of the photoluminescent film becomes larger, the production cost will increase, and because the larger the size, the more difficult it is to manufacture, the lower the production yield.

Method used

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Embodiment Construction

[0035] The present disclosure can be understood by referring to the following detailed description taken in conjunction with the accompanying drawings. It should be noted that, in order to facilitate readers' understanding and brevity of the drawings, several drawings in this disclosure only depict a part of the optical device / light emitting device, and specific components in the drawings are not drawn according to actual scale. In addition, the number and size of each component in the figure are only for illustration, and are not intended to limit the scope of the present disclosure. For example, the relative sizes, thicknesses and positions of regions and / or structures may be reduced or exaggerated for clarity.

[0036] Certain terms will be used throughout the specification and claims that follow this disclosure to refer to particular elements. Those skilled in the art should understand that electronic device manufacturers may refer to the same element by different names. ...

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Abstract

The invention provides an optical device including a diffusion layer, a light emitting device, and a first photoluminescent film. The diffusion layer is arranged opposite to the light emitting device, and the light emitting device comprises a plurality of light-emitting units. The first photoluminescent film is interposed between the diffusion layer and the light emitting device. A second distance between the first photoluminescent film and one of the plurality of light emitting units is smaller than a distance between the first photoluminescent film and the first diffusion layer. The optical device can improve the brightness efficiency.

Description

technical field [0001] The present disclosure relates to an optical device having a photoluminescent film. Background technique [0002] In recent years, in pursuit of higher color saturation, the display market has used photoluminescent films as backlight sources. However, if the blue light passes through the diffusion layer and then enters the photoluminescent film after its energy is attenuated, the efficiency of the backlight may be insufficient. In addition, the size of the photoluminescent film is generally the same as that of the panel. When the width of the photoluminescent film becomes larger, the production cost will increase, and because the larger the size, the more difficult it is to manufacture, the lower the production yield. Contents of the invention [0003] The present disclosure provides an optical device capable of improving brightness efficiency. [0004] According to an embodiment of the present disclosure, an optical device includes a diffusion lay...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F9/00
CPCG09F9/00G02F1/133606G02F1/133614G02F1/133611G02F1/133603G02F2202/28G02B6/0051G02B6/0053G02B6/0073
Inventor 陈洁莹林明炎林俊旭黄馨毅吴淑华
Owner INNOLUX CORP