LIGHTGUIDE PLATE AND LIGHTGUIDE PLATE MANUFACTURING METHOD
First Claim
1. A lightguide plate manufacturing method comprising of:
- (a) preparing for a lightguide film;
(b) applying a setting resin directly to a predetermined linear region on the lightguide film;
(c) hardening the setting resin to form an additional lightguide portion; and
(d) cutting the lightguide film with the additional lightguide portion provided on the lightguide film along a length direction of the predetermined linear region to obtain a lightguide plate in which a cut surface of the lightguide film and a cut surface of the additional lightguide portion are flush with each other.
1 Assignment
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Accused Products
Abstract
A film-shaped lightguide plate having high light entrance efficiency and easy to make has a lightguide plate body having an upper surface as a light-exiting surface, a lower surface opposite to the upper surface, and a peripheral side surface extending between the respective peripheral edges of the upper and lower surfaces. A circumferential part of the peripheral side surface forms a light-entrance surface that faces a light source. The lightguide plate further has an additional lightguide portion formed on at least one of the upper and lower surfaces of the lightguide plate body at the light-entrance surface side. The additional lightguide portion has a light-entrance surface facing the light source, together with the light-entrance surface of the lightguide plate body. The additional lightguide portion receives light from the light source through its light-entrance surface and guides the light into the lightguide plate body.
22 Citations
6 Claims
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1. A lightguide plate manufacturing method comprising of:
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(a) preparing for a lightguide film; (b) applying a setting resin directly to a predetermined linear region on the lightguide film; (c) hardening the setting resin to form an additional lightguide portion; and (d) cutting the lightguide film with the additional lightguide portion provided on the lightguide film along a length direction of the predetermined linear region to obtain a lightguide plate in which a cut surface of the lightguide film and a cut surface of the additional lightguide portion are flush with each other. - View Dependent Claims (2, 4)
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3. A lightguide plate manufacturing method comprising of:
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(a) preparing for a lightguide film; (b) applying a setting resin directly to a predetermined linear region on an upper surface of the lightguide film; (c) hardening the setting resin to form an additional upper lightguide portion; (d) applying a setting resin directly to a linear region on a lower surface of the lightguide film to form an additional lower lightguide portion that is opposite to the additional upper lightguide portion on the upper surface; (e) hardening the setting resin of the additional lower lightguide portion; and (f) cutting the lightguide film with the additional upper lightguide portion provided on the upper surface of the lightguide film and at the additional lower lightguide portion provided on the lower surface of the lightguide film along a length direction of the predetermined linear regions to obtain a lightguide plate in which a cut surface of the lightguide film and respective cut surfaces of the additional upper and lower lightguide portions are flush with each other. - View Dependent Claims (5)
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6. A lightguide plate manufacturing method comprising:
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preparing for a lightguide film; applying a setting resin directly to a predetermined linear region on a lightguide film; hardening the setting resin to form an additional lightguide portion;
forming a reflecting layer on the additional lightguide portion hardened in the linear region; andcutting the lightguide film with the additional lightguide portion and the reflecting layer formed on the additional lightguide portion along a length direction of the predetermined linear region to obtain a lightguide plate in which a cut surface of the lightguide film and respective cut surfaces of the reflecting layer and the additional lightguide portion are flush with each other.
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Specification