Sharp Kabushiki Kaisha Corporation

Enplas Corporation

Mitsuru Hineno

Nobuo Ogata

Shinji Suminoe

Hiroyuki Furukawa

Yasuhiro Sugita

Masafumi Ueno

Shinji Yamagishi

Jean Mugiraneza

Toshiya Ishio

Masaaki Moriya

Naoki Shiobara

Masanobu Okano

Masaki Tatsumi

Tomohiro Omatsu

Provided is a light-emitting device and the like in which a light source emits light on the basis of information obtained through communications and the light thus emitted is easy for a user to visually recognize. A light-emitting device includes an LED, a light guide plate, a transparent NFC antenna sheet, and an NFC antenna. The transparent NFC antenna sheet and the NFC antenna are disposed on a principal surface or a backside surface of the light guide plate. At least some part of the light guided by the light guide plate exits out through the principal surface. The LED emits light on the basis of identification information obtained through communications via the NFC antenna sheet and the NFC antenna.

Light-emitting device, authentication notification system, and door

A surface light-emitting unit of the present invention is an LED module () for emitting light from an LED chip () of a light-emitting element part () via a light flux control section () of a light flux control part (), the light flux control section () being fixed by a plurality of columnar sections () above a fixing surface of a substrate () on which fixing surface the light-emitting element part ()is fixed. This provides an appropriate gap between the light-emitting element part () and the light flux control section () for heat release.

Surface light-emitting unit and display device provided with the same

In a surface light source apparatusfor irradiating light in a planar form by arranging a plurality of tubular light sourcesat high density in the middle of a screen so that brightness at the middle of the screen is high, each tubular light sourcepositioned in rows at topmost and bottommost edges is arranged to be closer toward screen corner sections in a plan view so as to compensate for lack of brightness at the screen corner sections in a plan view. In this manner, each tubular light sourceis arranged by placing each tubular light sourcein the rows at the topmost and bottommost edges closer in a row direction toward each corner section B of the reflection sheet. Thereby, brightness at the middle of a screen is maintained and enhanced, and display quality at corner sections of the screen is improved.

Surface light source apparatus and liquid crystal display apparatus

The purpose of the present invention is providing a light emitting module capable of emitting illumination light having a nearly uniform color tone as a whole. The invention also provides a surface light source having such light emitting modules, and a liquid crystal display and an illuminating device having such a surface light source. In a light emitting module (), adjacent dot light sources () satisfy the relationships &#x394;X+&#x394;X=&#x394;X&#xd7;2 and &#x394;Y+&#x394;Y=&#x394;Y&#xd7;2, so that the resultant mixed color can fall within a target chromaticity rank area (M), and the center (gc) of a first chromaticity rank area g and the center (Ec) of a second chromaticity rank area (E) are axisymmetric with respect to virtual straight lines (gE, gE) that pass through the center (Mc) of the target chromaticity rank area (M) and parallel to one side or another side of the target chromaticity rank area (M).

Light emitting module, surface light source, liquid crystal display, and illuminating device

Provided is a liquid crystal display device that can reduce costs while preventing moving image blurring. The device includes a liquid crystal panel and a backlight device. The backlight device includes a rectangular light guide platein plan view, and a light source unit emitting light toward a light incident surface corresponding to a side surface of the light guide plate. The light source unit is configured by a plurality of light source blocks arranged in a Y direction. The light guide plateincludes a groove structurefor taking out light upward on its front surface opposed to a back surface of the liquid crystal panel, and a dot patternfor scattering light on its back surface. The groove structurehas a plurality of stripe-like grooves extending in an X direction, wherein a ridge extending in the X direction is formed at a portion sandwiched between the two adjacent grooves.

Liquid crystal display device

A surface-emission unit to prevent irregularity in brightness from being generated is provided. The surface-emission unit is composed of light-emission element parts each having a light-emission element, aligned and arranged on a substrate two-dimensionally, and optical lenses each arranged on the substrate with respect to each light-emission element part, to diffuse light from the light-emission element, and a support part to fix the optical lens onto the substrate is arranged so as not overlap a line connecting the light-emission element part corresponding to the optical lens fixed by the support part, to another light-emission element part adjacent to the light-emission element part.

Growing community of inventors

Osaka, Japan

Mitsuru Hineno