Optical substrate, display device using the same and their manufacturing methods
A technology for display devices and substrates, applied in optics, nonlinear optics, instruments, etc., can solve the problems of machinability, such as lens components and structural elements, the addition of lens convex manufacturing processes, and the generation of chromatic aberration.
Inactive Publication Date: 2006-02-01
TPO HONG KONG HLDG
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Problems solved by technology
Therefore, chromatic aberration, etc., may occur in transmitted light, which is not preferable, and in particular, may cause considerable problems for display devices that display color images
[0007] Furthermore, there is an additional burden on the manufacturing process for forming the lens convexity in a suitable spherical shape
In particular, with the development of miniaturization of pixels due to the demand for high-resolution images, the size of the lens must be reduced more and more, and thus the prior art has disadvantages
[0008] In addition, in addition to parts or structures for lenses, liquid crystal display devices and the like generally use various optical elements or other structural elements, so the actual situation is that the so-called workability has to consider the combination of lens parts and structural elements
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[0034] The above solutions and other embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0035] figure 1 A schematic diagram showing one principal plane of an optical collection substrate according to an embodiment of the present invention taken from its front side. figure 2 means along figure 1 The cross-sectional structure of the optical collection substrate taken in line II-II. image 3 is a schematic diagram of a portion of the optical collection substrate cut obliquely.
[0036] The optical collection substrate 20 is composed of an optically transmissive material such as glass, and is formed in a flat plate shape having one main plane 21 covering an area of a predetermined display area and the other main plane 22 on the side opposite to the plane 21 . As in the conventional technique, the optical collection substrate 20 has a local area from one main plane 21 side at each position toward an array 20...
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An object of the invention is to provide an optical collective substrate and a display device using it, which can make effective use of light while avoiding generation of chromatic aberration in transmitted light. An optical substrate (20) of an optically transmissive material having a structure in which incident light Li from one principal plane (21) side of the substrate is locally focused toward an array of apertures (201) formed on the other principla plane (22). The one principal plane (21) is provided with grooves 2v being filled with an optically transmissive substance 2m of a predetermined refractive index, the filled groove portions 2V allowing the incident light Li from the one principal plane (21) side to be collected onto the respective apertures (201).
Description
technical field [0001] The present invention relates to an optical collection substrate used in a liquid crystal display device and the like and a method of manufacturing the same. The present invention also relates to a display device using the optical collection substrate and a manufacturing method thereof. Background technique [0002] A liquid crystal panel is disclosed that has a structure in which a set of lenses is provided between a backlight and a display electrode, and collects light from the backlight in each display electrode on a pixel basis (for example, see Patent Reference 1). [0003] [Patent Reference 1] [0004] Japanese Patent Application Laid-Open No. 89025 / 90 (pp. 2-3 and Figure 1-3 ) [0005] In the liquid crystal panel disclosed in this reference, as the above-mentioned set of lenses, a lens array plate is used in which convex spheres with high refractive index portions and convex spheres are formed in matrix form on a transparent plate different f...
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IPC IPC(8): G02F1/1333G02F1/1335G09F9/30
CPCG02F2203/28G02F2001/133567G02F1/133526G02F1/133567G02F1/1335G02F1/1333
Inventor 柴崎稔
Owner TPO HONG KONG HLDG