基本信息:
- 专利标题： ELECTROLUMINESCENT DISPLAY DEVICES
- 专利标题（中）：致发光显示器件
- 申请号：EP04744219.9 申请日：2004-07-30
- 公开(公告)号：EP1654720A1 公开(公告)日：2006-05-10
- 发明人： CHILDS, Mark J., c/o Philips IP & Standards , KNAPP, Alan G., c/o Philips IP & Standards , FISH, David A., c/o Philips IP & Standards , YOUNG, Nigel D., c/o Philips IP & Standards
- 申请人： Koninklijke Philips Electronics N.V.
- 申请人地址： Groenewoudseweg 1 5621 BA Eindhoven NL
- 专利权人： Koninklijke Philips Electronics N.V.
- 当前专利权人： Koninklijke Philips Electronics N.V.
- 当前专利权人地址： Groenewoudseweg 1 5621 BA Eindhoven NL
- 代理机构： Williamson, Paul Lewis
- 优先权： GB0318613 20030808; GB0405804 20040316
- 国际公布： WO2005015530 20050217
- 主分类号： G09G3/32
- IPC分类号： G09G3/32
摘要：
The pixels of an active matrix display device have a current-driven light emitting display element, a drive transistor for driving a current through the display element, a storage capacitor for storing a pixel drive voltage to be used for addressing the drive transistor, a light-dependent device for detecting the brightness of the display element, and driver circuitry for providing data signals to the pixel external to the pixel array. This provides a pixel with optical feedback to compensate for display element ageing. The driver circuitry has a processing means for processing the feedback brightness signals and derives from them a threshold voltage for the drive transistor of the pixel as well as information relating to the performance of the display element, for ageing compensation.
IPC结构图谱:
| G | 物理 |
| --G09 | 教育；密码术；显示；广告；印鉴 |
| ----G09G | 使用静态方法显示可变信息的指示装置 |
| ------G09G3/00 | 仅考虑与除阴极射线管以外的目视指示器连接的控制装置和电路 |
| --------G09G3/04 | .用于从许多字符中选取单个字符或用个别的元件组合构成字符来显示单个字符，例如分段 |
| ----------G09G3/22 | ..采用受控制光源 |
| ------------G09G3/24 | ...采用白炽灯丝 |
| --------------G09G3/32 | ....半导体的，例如二极管 |