Transflective liquid crystal display

Details Transflective liquid crystal display Transflective liquid crystal display

G - Physics

02

F

375/39, 345/8

G02F 1/13 (2006.01) G02F 1/137 (2006.01) G02F 1/13357 (2006.01) G02F 1/13363 (2006.01)

Patent

CA 1174345

RD-13611 TRANSFLECTIVE LIQUID CRYSTAL DISPLAY ABSTRACT OF THE DISCLOSURE A transflective liquid crystal display is vlewable by either reflected or transmitted light. The display utilizes at least one display cell of the guest dichroic dye-host liquid crystal material type, wherein the molecules are substantially parallel to the cell walls and have a helical twist in the inactivated state and are oriented substantially perpendicular to the cell walls in the activated state. A partially-reflective, partially- transmissive transflector element, which is non- depolarizing, is placed adjacent to the rear of the display cell and is followed by a light-retarding element, having its retardation axis placed at an angle, typically 45° to the polarization axis of a subsequent linear- polarizing element. A light source, for use in the transmissive mode, is placed beyond the linear-polarizing element.

405464

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