发明名称 |
Uniformity and brightness measurement in OLED displays |
摘要 |
A detection system for the detection of brightness and uniformity variations in an OLED display, comprising: a two-dimensional OLED display having a pre-defined group of light-emitting elements distributed across the display; a two-dimensional imager; optical elements arranged so that the imager is exposed to all of the light-emitting elements in the predefined group of light-emitting elements of the OLED display simultaneously and at a magnification such that each light-sensitive sensor element records the light output from no more than one light-emitting element; and a controller to control the OLED display and cause each of the light-emitting elements of the predefined group of light-emitting elements to illuminate and the imager to acquire images of the illuminated light-emitting elements in the OLED display. The invention is further directed towards a method for the measurement of brightness and uniformity variations in light-emitting elements of an OLED display.
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申请公布号 |
US7274346(B2) |
申请公布日期 |
2007.09.25 |
申请号 |
US20040858260 |
申请日期 |
2004.06.01 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
COK RONALD S.;FORD JAMES H. |
分类号 |
G09G3/32;G01J1/42;H04N17/04;H05B33/00 |
主分类号 |
G09G3/32 |
代理机构 |
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