Check patentability & draft patents in minutes with Patsnap Eureka AI!

Optical sheet for display, and manufacturing method and apparatus therefor

A technology of optical sheets and displays, applied in optics, optical components, optical components, etc., can solve problems such as quality degradation, flat lenses being dusted, polluted, etc., and achieve the effect of reducing mismatch, simple method, and low cost

Inactive Publication Date: 2008-12-31
FUJIFILM CORP
View PDF4 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, electrostatic charges generated when removing the protective sheet from the flat lens may contaminate the flat lens with dust, etc., causing a problem of quality deterioration

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Optical sheet for display, and manufacturing method and apparatus therefor
  • Optical sheet for display, and manufacturing method and apparatus therefor
  • Optical sheet for display, and manufacturing method and apparatus therefor

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0171] Regarding the first embodiment for carrying out the present invention, first, the configuration (first to sixth examples) of examples of an optical sheet for a laminated sheet assembly type display according to the present invention will be described.

[0172] Fig. 1 is a cross-sectional view showing the configuration of an example (first example) of an optical sheet for a display. This optical sheet 10 for a display is an optical sheet assembly that is formed by stacking a first diffusion sheet 12, a first prism sheet 14, a second prism sheet 16, and a second diffusion sheet in a bottom-up order. Piece 18 and constructed.

[0173] The first diffusion sheet 12 and the second diffusion sheet 18 are sheets each having beads fixed on the surface (one side) of the transparent film (carrier) using an adhesive and having predetermined light diffusion characteristics. The first diffusion sheet 12 and the second diffusion sheet 18 are different in bead diameter (average particle si...

no. 3 approach

[0327] Hereinafter, a third embodiment for implementing the present invention will be described with reference to the drawings. Incidentally, the configurations of the examples (first to sixth examples) of the optical sheets for displays of the laminated sheet assembly type are the same as those in the first embodiment described with reference to FIGS. 1 to 6, and will be used by The same corresponding symbols are described.

[0328] The manufacturing method 200 of the optical sheet for a display according to the present invention will be described. Although this manufacturing method is generally applicable to all the optical sheets 10 to 60 for displays that have been described, for convenience of explanation, the following description will deal with the case where the method is applied to the optical sheet for three-layer displays (third example).

[0329] The rollers 212B, 214B, and 216B shown at the left end of FIG. 25 are the first diffusion sheet 12, the prism sheet 14, and ...

no. 4 approach

[0358] Hereinafter, a fourth embodiment for implementing the present invention will be described with reference to the drawings. Incidentally, the configuration of the optical sheets for displays (first to sixth examples) of the laminated sheet assembly type is the same as that in the first embodiment described with reference to FIGS. 1 to 6; and the same will be used by The corresponding symbols are described.

[0359] A manufacturing apparatus 400 for implementing a manufacturing method of an optical sheet for a display according to the present invention will be described. Although this manufacturing apparatus 400 is generally applicable to all the optical sheets 10 to 60 for displays that have been described, for convenience of explanation, the following description will deal with the case where the method is applied to the optical sheet for four-layer displays (first example).

[0360] FIG. 34 is a conceptual diagram showing the overall configuration of a manufacturing apparat...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
diameteraaaaaaaaaa
lengthaaaaaaaaaa
Login to View More

Abstract

The invention provides an optical sheet for display use wherein two or more optical sheets are stacked therein and the optical sheets are joined to one another on one peripheral side of each by a thermoadhesive film is to be provided. Also an optical sheet for display use wherein two or more optical sheets are stacked therein and the optical sheets are joined to one another on two or more peripheral sides of each by a thermoadhesive film is to be provided. Since the optical sheets are joined to one another on one peripheral side or two or more peripheral sides of each by a thermoadhesive film, the step of cutting each of multiple films (sheets) into the product size can be omitted, and so can be the step of stacking multiple layers of films (sheets) while positioning them. Also, it is free from a problem which derives from protective sheets, resulting in advantages in both cost and quality aspects. Moreover, it is free from a problem which arises when multiple layers of films are stacked.

Description

Technical field [0001] The present invention relates to an optical sheet for a display and a manufacturing method and apparatus thereof, and more particularly, to an optical sheet for a display in a liquid crystal display unit or the like, and a manufacturing method and apparatus thereof. Background technique [0002] At present, laptop personal computers, mobile phones and mobile LCD TV receivers equipped with color liquid crystal display devices, and liquid crystal display devices integrated with playback devices suffer from high power consumption of liquid crystal displays, which prevents the increase in the time the battery can drive. bitter. Most of these liquid crystal display devices use a backlight system that irradiates a liquid crystal layer from behind to brighten it, and such a backlight system includes a backlight unit disposed under the liquid crystal layer. [0003] Generally, the backlight unit has a light source such as a cold cathode tube or LED, a light guide p...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G09F9/00B29D11/00B32B7/02G02B3/00G02B5/02G02F1/1335G02F1/13357
Inventor 远藤惠介中山武彦斋藤直子
Owner FUJIFILM CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com