Japan Display Inc.

Tomohisa Onishi

Takashi Ota

Toji Aoshima

Shiori Akamatsu

Yasuhisa Shiraishi

An illumination device is provided and includes a light guide; a light emitter facing the light guide; a wiring substrate provided on the light emitter and electrically connected to the light emitter; and a frame surrounding the light guide and the light emitter, wherein the wiring substrate has a first edge and a second edge which extend in a first direction, and a third edge which connects the first edge and the second edge, the frame has a fourth edge facing the third edge, the third edge and the fourth edge are spaced apart from each other and form a trench which communicates with an outside of the illumination device, and the trench has a curved portion in plan view.

Illumination device and display device

An illumination device is provided and includes a light guide; a light emitting unit facing the light guide; a wiring substrate provided on the light emitting unit; and a frame surrounding the light guide and the light emitting unit, wherein the wiring substrate has a first edge and a second edge which extend in the first direction, and a third edge which connects the first edge and the second edge, the frame has a fourth edge facing the third edge; the third edge and the fourth edge are spaced apart from each other and form a trench which communicates with an outside of the illumination device, and a length of the third edge and a length of the fourth edge along the trench are larger than a distance between the first edge and the second edge in a second direction intersecting the first direction.

According to one embodiment, an illumination device includes a light guide, a frame surrounding the light guide, a light emitting unit located between the light guide and the frame, and a wiring substrate electrically connected to the light emitting unit. The wiring substrate includes a convex portion projecting in a first direction as seen in plan view. The frame includes a concave portion facing the convex portion as seen in plan view. The concave portion is spaced apart from the convex portion.

This invention reduces or prevents a phenomenon where a screen close to a light source becomes yellowed. A liquid crystal display device includes a liquid crystal display panel and a backlight. The backlight includes a light guide plateand white LEDsarrayed in a first direction on a plane of incidenceof the light guide plate. The white LEDseach includes, in the first direction on a light-emitting surface, a central area occupied by a blue spectrum more densely than at adjacent sides of the central area. Incident plane protrusions, each extending in a thickness direction of the light guide plate, are formed on a section corresponding to the area having the dense blue spectrum of each LED, at the plane of incidenceof the light guide plate

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Tokyo, Japan

Tomohisa Onishi