发明名称 |
Flat type color cathode ray tube |
摘要 |
Disclosed is a flat type color cathode ray tube of high quality, which is capable of maintaining a brightness and brightness uniformity of an image while improving contrast, thereby ensuring flatness and visual distinction of the image. The flat type color cathode ray tube comprises a panel having an outer surface which is substantially flat and an inner surface which takes a predetermined curvature. The panel possesses at a center part thereof a transmittance of 45%~75%, and the inner surface of the panel possesses an on-diagonal-axis curvature RD which satisfies a correlation, 3.5R<=RD<=8.0R where R is a product of 1.767 and a diagonal length of an effective surface along a diagonal axis.
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申请公布号 |
US6677702(B2) |
申请公布日期 |
2004.01.13 |
申请号 |
US20020157854 |
申请日期 |
2002.05.31 |
申请人 |
LG PHILIPS DISPLAYS KOREA |
发明人 |
KIM YONG KUN;PARK YOON SAN;HONG HYEON SOO |
分类号 |
H01J29/02;H01J29/86;H01J31/00;H01J31/08;H01J31/20;(IPC1-7):H01J31/00 |
主分类号 |
H01J29/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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