Light density control with lcd arrangement

Details Light density control with lcd arrangement Light density control with lcd arrangement

G - Physics

03

B

G03B 27/80 (2006.01) G02F 1/1345 (2006.01) G02F 1/1343 (2006.01)

Patent

CA 2279780

The invention relates to an LCD arrangement, especially for the illumination control of an exposure arrangement, such as a photographic printer for the exposure of photo-sensitive material, with a first transparent plate (102) and a second transparent plate (104), which are planar and positioned spaced apart parallel, whereby a liquid crystal fluid is enclosed in a space between the plates (102, 104), whereby the LCD arrangement includes multiple picture elements (pixels) associated with electrodes which are positioned on the plates, whereby feed conductors to the electrodes feed control signals thereto, whereby, the first plate on one side has a picture element associated with an electrode, while the feed conductors associated with an electrode are provided on the other side of the first plate (102) and the respective feed conductors are connected to the electrodes (74) through conductive regions in the first plate.

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