Color liquid crystal display having color filters and light bloc

Details Color liquid crystal display having color filters and light bloc Color liquid crystal display having color filters and light bloc

1993-05-24

1994-11-15

Sikes, William L.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 62, 359 68, 359 73, G02F 11335

Patent

active

053653572

ABSTRACT:
A color liquid crystal display device comprising light shielding layers and color filters on the inner surface of a cell, wherein similar light shielding layers and color filters are disposed also in a peripheral region outside of a display region which is equipped with groups of striped row and column electrodes opposed mutually to form pixels for display. The respective patterns of the light shielding layers and the color filters are the same in both the display region and the peripheral region. A liquid crystal layer formed in the display device has a twist angle of 160.degree. to 300.degree. and a retardation compensator composed of a film is superposed on such layer so as to compensate the elliptical polarization. And a non-selective voltage is applied continuously to the scanning electrodes in the peripheral region so as to maintain the peripheral pixels in a light-shielded state, thereby rendering the display easier to be seen. Furthermore, due to overlaps of the color filters and the light shielding layers in both the display region and the peripheral region, the gap between the substrates is retained substantially uniform to minimize the nonuniformity of the background color.

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