Backlight of liquid crystal display having subsidiary electro-luminescence lamp
AssigneeNEC Corporation
InventorTsutomu Kanatsu
Life of this patent
Estimating the term…
Abstract
A novel structure for the backlight of an LCD is provided, by which the frame portion of the screen can be further narrowed and the weight of the LCD can be reduced. In the backlight arranged in the display area corresponding to the display section of the LCD, the cold cathode tube, disposed along a part of a circumferential area of the display section, is surrounded by a light-introducing plate made of a light-transmitting material and a reflector, and an electro-luminescence lamp is provided between the display section and the reflector.
Claims5
A backlight of a liquid crystal display, arranged in the display area corresponding to a display section of the liquid crystal display in a manner such that the backlight partially overlaps the display area, the backlight comprising:
- a cold cathode tube which is disposed along a part of a circumferential area of the display section;
- a light-introducing plate made of a light-transmitting material, an end face of which faces the cold cathode tube;
- a reflector for surrounding the cold cathode tube and reflecting light radiated from the cold cathode tube;
- and
- an electro-luminescence lamp provided between the display section and the reflector, so as to radiate a part of the display section which cannot be irradiated via the light-introducing plate.
Dependencies are inferred from the claim text.