Transmissive display device having two reflection metallic layer

Details Transmissive display device having two reflection metallic layer Transmissive display device having two reflection metallic layer

1998-05-29

2000-05-23

Parker, Kenneth

Liquid crystal cells, elements and systems

Particular excitation of liquid crystal

Electrical excitation of liquid crystal

349110, 349111, 349 42, 349 44, G02F 1136, G02F 11333

Patent

active

060671319

ABSTRACT:
A transmissive display device includes a driving substrate positioned on a emergent side which has both a group of pixels including component units each having a pixel electrode and a switching device, and a black matrix for shielding light from reaching the non-aperture part of each pixel from the incident side. The black matrix has an overlaid structure formed by overlaying a low-reflection metallic layer and a high-reflection metallic layer with an interlayer insulating film provided therebetween. Both layers are patterned, and partially overlap with each other as mutually complement to shield incident light. When observed in plan view from the incident side, the exposing area of the low-reflection layer is enlarged, while the exposing area of the high-reflection metallic layer is reduced to suppress the surface reflectance of the black matrix. Thereby, multiple reflection inside liquid crystal does not occur, and it is possible to prevent contrast deterioration caused by leaked rays.

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