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US 7,063,429 B2Granted
Light-emitting display device using light-emitting element and electronic apparatus
AssigneeCasio Computer Co., Ltd.
InventorsTadao Hirano, Masato Ueno, Shinichi Tanaka
Life of this patent
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Abstract
An electronic apparatus has a light-emitting element and a light-emitting portion. An output light from the light-emitting element is guided by a frame-like member having serrations and radiated toward the light-emitting portion. This causes the light-emitting portion to emit light reliably, and improves the decorativeness of the apparatus.
Claims12
A light-emitting display device using a light-emitting element, comprising:
- a glass having light transmission characteristics;
- a dial provided under the glass;
- hour numerals provided at predetermined positions on an outer periphery of a surface of the dial;
- a frame-like member provided between a peripheral portion of the dial and a peripheral portion of the glass;
- an ultraviolet light-emitting element embedded in the frame-like member, and which emits ultraviolet rays;
- a light-emitting portion formed of light-emitting particles for emitting colored light in response to the ultraviolet rays emitted by the ultraviolet light-emitting element provided in each of the hour numerals;
- and
- a serrated light-radiating portion formed on an entire circumferential peripheral portion of at least an inner peripheral portion or an outer peripheral portion of the frame-like member, and which radiates, when the ultraviolet rays emitted from the ultraviolet light-emitting element are incident on the frame-like member, the incident ultraviolet rays toward the light-emitting portion while diverging or converging the ultraviolet rays.
5 more elements
An electronic device comprising:
- an apparatus case including an opening portion;
- a glass having light transmission characteristics and located in such a way as to cover the opening portion of the apparatus case;
- a dial provided under the glass;
- hour numerals provided at predetermined positions on an outer periphery of a surface of the dial:
- a frame-like member provided between a peripheral portion of the dial and a peripheral portion of the glass, and which is fixed onto an inner circumferential peripheral surface of the apparatus case;
- an ultraviolet light-emitting element embedded in the frame-like member, and which emits ultraviolet rays;
- a light-emitting portion formed of light-emitting particles for emitting colored light in response to the ultraviolet rays emitted by the ultraviolet light-emitting element provided in each of the hour numerals;
- and
- a serrated light-radiating portion formed on an entire circumferential peripheral portion of at least an inner peripheral portion or an outer peripheral portion of the frame-like member, and which radiates, when the ultraviolet rays emitted from the ultraviolet light-emitting element are incident on the frame-like member, the incident ultraviolet rays toward the light-emitting portion while diverging or converging the ultraviolet rays.
6 more elements
Dependencies are inferred from the claim text.