Liquid crystal display device
View Patent ↗The present invention provides a light-weighted backlight capable of ensuring a sufficient light quantity at a low cost. A backlight is arranged below a liquid crystal panel. A light source is arranged in the vertical direction with respect to a screen of the liquid crystal panel so that light from the light source is directed toward the liquid crystal panel by a reflector. Due to such a constitution, the reflector can also function as a back lid of the backlight. Further, the reflector plays a role of directing the light from the light source toward the liquid crystal panel and hence, a light guide plate can be omitted. Due to such a constitution, the present invention can realize the reduction of weight and cost of the backlight or the liquid crystal display panel.
1. A liquid crystal display device, comprising:
a liquid crystal panel; and
a backlight arranged on a side opposite to a display screen of the liquid crystal panel, wherein
the backlight includes a light source and a reflector for reflecting light radiated from the light source toward the liquid crystal panel, a circuit board which drives a light source of the backlight, and a reflector fixing portion which is arranged on a short side of a screen of the liquid crystal display device, a reflector fixing portion holding a short side end portion of the reflector, and
the reflector forms a bottom surface of the backlight,
wherein the circuit board is arranged in a central bent portion of the reflector.
2. A liquid crystal display device according to claim 1 , wherein a pair of reflector-shape forming members for fixing the reflector are provided, and the reflector is sandwiched by the pair of reflector-shape forming members.
3. A liquid crystal display device according to claim 1 , wherein a shape of the reflector is a curved shape.
4. A liquid crystal display device according to claim 1 , wherein the backlight is an edge-light-type backlight.
5. A liquid crystal display device according to claim 4 , wherein the light source of the backlight is a hot cathode fluorescent lamp.
6. A liquid crystal display device according to claim 1 , wherein a plate thickness of the reflector is 0.01 mm to 1 mm.
7. A liquid crystal display device according to claim 4 , wherein the backlight does not include a light guide plate.
8. A liquid crystal display device according to claim 1 , wherein the backlight is an edge-light-type backlight having no light guide plate.