公开(公告)号：EP0513173A4

公开(公告)日：1993-03-10

申请号：EP91904100

申请日：1991-01-23

Applicant: PROXIMA CORPORATION

Inventor： SHAPIRO, LEONID ,  HAUCK, LANE, T. ,  FARWELL, RANDALL, S. ,  SHAW, ROBERT, W.

IPC: G02F1/133 ,  G09G3/36 ,  H04N5/74 ,  G09G3/00

CPC classification number: G09G3/36 ,  G09G3/3607 ,  G09G2300/023 ,  G09G2320/0247 ,  G09G2320/0276 ,  H04N2005/745

Abstract: The display system (10) includes a liquid crystal display panel unit (12) having three different color components for each pixel of the resulting display. Each one of the individual color components of a pixel of the liquid crystal display panel unit (12) is activated selectively by a corresponding one of a set of video processing units (20, 21, 22). Each video processing unit (20, 21, 22) is responsive to a video signal from a conventional computer processor (11) for causing the reproduction of a component of a colored image. Each video processing unit (20, 21, 22) includes a translating arrangement (23, 24, 25) for converting a component part of the computer generated video signal into a binary digital signal indicative of a single one of the color components for mixing with other color components to reproduce faithfully the computer generated color image.

公开(公告)号：EP0536321A4

公开(公告)日：1993-05-05

申请号：EP91913791

申请日：1991-06-28

Applicant: PROXIMA CORPORATION

Inventor： BOHANNON, WILLIAM, K. ,  SHAPIRO, LEONID

IPC: G02F1/133 ,  G02F1/1335 ,  G02F1/1347 ,  G02F1/139 ,  H04N5/74 ,  H04N9/31 ,  G02F1/13

CPC classification number: H04N9/3167 ,  G02F1/133533 ,  G02F1/13473 ,  G02F1/1397 ,  G02F2001/133531 ,  G09G2300/023 ,  G09G2320/0247 ,  G09G2320/0276 ,  H04N2005/745

Abstract: A stacked display panel construction (10) produces multishades of a single color, or a plurality of multiple colors (400, 500, 600). The system includes a nematic display panel (24) which, in one of its states, functions as a waveguide to rotate linearly polarized light from a colored polarizer (23), to produce noncolored light (NC1) from an output polarizer (25). In its other state, the display panel (24) twists the linearly polarized light to emit therefrom predominantly linearly polarized light for enabling the output polarizer (25) to emit colored light (R2). The method of making the construction includes adjusting the angle of rotation in the waveguide state of the panel (24), until only noncolored light (NC1) is emitted from the output polarizer (25). A display panel construction (800) includes three substantially identical nematic liquid crystal panels (824, 826, 828), associated electronic drive units (844, 845, 846) and associated polarizers (823, 825, 827, 829) for producing multiple colors.