发明授权
- 专利标题: Liquid crystal display unit which is back-lit with colored lights
- 专利标题(中): 液晶显示单元用彩色灯点亮
-
申请号: US521399申请日: 1990-05-10
-
公开(公告)号: US5128782A公开(公告)日: 1992-07-07
- 发明人: Lawson A. Wood
- 申请人: Lawson A. Wood
- 专利权人: Wood Lawson A
- 当前专利权人: Wood Lawson A
- 主分类号: G02F1/13357
- IPC分类号: G02F1/13357 ; G02F1/1362 ; G09G3/20 ; G09G3/34 ; G09G3/36
摘要:
A liquid crystal display unit includes a liquid crystal display panel having a matrix or pixels which act as light valves. The red component of an image is displayed on the panel, and a red light is flashed on the back of the panel. Then the green component of the image is displayed and a green light is flashed, and the blue component is displayed and a blue light is flashed. A plurality of light sources, each having a red light emitter, a green light emitter, and a blue light emitter, may be employed at a close distance to an active-matrix LCD panel if compensation is provided for the differences in light intensity at different positions on the back of the panel. A passive-matrix LCD panel may be used if a flash of light is emitted each time a row electrode of the panel is strobed. Preferably a plurality of light sources is used, and after one row electrode is strobed and its associated light source is fired, the next row electrode to be strobed is located adjacent a different light source. As a result, a row of pixels is exposed to an intense burst of light at the optimum moment and a relatively mild burst of light as the row of pixels is turning OFF.
公开/授权文献
- US5837308A Oil/water emulsion heat-stabilized with protein and datem 公开/授权日:1998-11-17
信息查询
IPC分类: