Led light source unit for backlight of liquid crystal display, and liquid crystal display
AssigneeRohm Co., Ltd.
InventorsYuki TANUMA, Tomoharu HORIO, Tadatoshi MIWA, Hiroyuki TAJIRI, Takumi YAMADE
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Abstract
An LED light source unit for a backlight of a liquid crystal display is provided. The light source unit includes a plurality of LED chips, an insulating substrate, and a metal film covering a principal surface of the substrate. The LED chips are mounted on the metal film. With this arrangement, brightness of the light source unit is enhanced.
Claims92
An LED light source unit for a backlight of a liquid crystal display, the unit comprising:
- a plurality of LED chips;
- a substrate;
- and
- a metal film covering a principal surface of the substrate;
- wherein the LED chips are mounted on the metal film.
An LED light source unit for a backlight of a liquid crystal display, comprising:
- a plurality of LED chips;
- a substrate including a principal surface on which the LED chips are mounted;
- and
- a reflector attached to the substrate and formed with a plurality of openings each including an inner surface surrounding a respective one of the LED chips.
An LED light source unit for a backlight of a liquid crystal display, the LED light source unit comprising:
- a plurality of LED chips;
- a substrate including a principal surface on which the LED chips are mounted;
- and
- an opaque resin;
- wherein one of the LED chips comprises a submount substrate made of Si and a semiconductor layer disposed on the submount substrate, the opaque resin is made of a material having a reflectivity higher than that of the submount substrate, the submount substrate includes a side surface oriented in a direction perpendicular to a normal direction of the principal surface, and at least part of the side surface is covered with the opaque resin.
Dependencies are inferred from the claim text.