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Optical member, surface light unit, and liquid crystal display

A technology for optical components and surface light sources, which can be used in optical components, optics, lighting devices, etc., to solve problems such as adverse effects on display images, warping and deformation of liquid crystal display panels, and sunken light sources.

Active Publication Date: 2012-11-07
DAI NIPPON PRINTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, once such an optical component is incorporated into a liquid crystal display device, during the light source is turned on, a warping deformation that is concave on the light source 31 side (light-incident side) and convex on the liquid crystal display panel 19 side (light-outside) is likely to occur.
Moreover, the optical component 25 will press the liquid crystal display panel 19, so that the displayed image will be adversely affected.

Method used

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  • Optical member, surface light unit, and liquid crystal display
  • Optical member, surface light unit, and liquid crystal display
  • Optical member, surface light unit, and liquid crystal display

Examples

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Embodiment Construction

[0042] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In addition, for ease of illustration and understanding, appropriate ratios and aspect ratios are adopted in the drawings in this specification, which may be exaggerated and changed compared with the actual size of the actual product.

[0043] Figure 1 to Figure 4 To illustrate an embodiment of the liquid crystal display device, the surface light source device, and the optical component of the present invention. figure 1 Is a vertical cross-sectional view showing the liquid crystal display device, figure 2 The arrangement state of the support member in a plan view is explained. image 3 It is a partial cross-sectional view of the optical sheet incorporated in the liquid crystal display device, and illustrates the curvature and arrangement state of the curved portion of the lens array formed on the optical sheet. Figure 4 Yes figure 1 Vertical cross-sectional view of th...

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PUM

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Abstract

An optical member that will be incorporated in a surface light source unit and that is scarcely deformed while it is used as a component of the surface light source unit. The optical member comprises optical sheets layered on each other. The optical sheets at least includes: an outermost optical sheet on the light-entrance side, which is situated outermost on the light-entrance side; and a high-rigidity optical sheet situated on the light-exit side of the outermost optical sheet on the light-entrance side, a rigidity of the high-rigidity optical sheet being higher than a rigidity of the outermost optical sheet on the light-entrance side.

Description

Technical field [0001] The present invention relates to an optical component, a surface light source device, and a liquid crystal display device, and more particularly to an optical component having a plurality of optical sheets overlapping each other, a surface light source device including the optical component, and a liquid crystal display device including the surface light source device. Background technique [0002] In recent years, liquid crystal display devices using liquid crystal display panels (hereinafter also referred to as LCD panels) have been used in various fields as image display means for personal computers, televisions, and various information terminal equipment. In this type of liquid crystal display device, the LCD panels are all transmissive. Furthermore, the surface light source device converts the light from the light source into surface light and irradiates the liquid crystal panel from the back. [0003] The surface light source device is roughly classifi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1335G02B3/00F21V5/04F21V21/00
Inventor 后藤正浩儿玉大二郎
Owner DAI NIPPON PRINTING CO LTD