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Class Information
Number: 349/57
Name: Liquid crystal cells, elements and systems > Particular structure > Lens or prism separate from projection system (i.e., it is not integral part of illumination system)
Description: Subject matter wherein the liquid crystal device includes a specific lens or prism near or adjacent to the liquid crystal cell, wherein the lens or prism is not an integral part of a projection system nor a light guide of the liquid crystal illumination system.










Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
5742373 Color microdisplays and methods of manufacturing same Apr. 21, 1998
5739876 Method of backlighting a display panel of an ATM Apr. 14, 1998
5739931 Illumination system employing an array of microprisms Apr. 14, 1998
5736752 Active matrix electroluminescent display pixel element having a field shield means between the pixel and the switch Apr. 7, 1998
5737042 Image display device with optical low-pass filter Apr. 7, 1998
5731857 Picture display device with microlens array and beam refracting element array on each side or opposite reflector Mar. 24, 1998
5729311 Illumination system for a flat-panel picture display device Mar. 17, 1998
5729306 Light splitting and synthesizing device and liquid crystal display apparatus including the same Mar. 17, 1998
5712693 Light valve and display system with a substrate having particular relationship between its central thickness, display area diameter, and refractive index Jan. 27, 1998
5694186 Color liquid crystal display device having special relationship between its isochromatic viewing angle and half-brightness angle Dec. 2, 1997
5694182 Optically addressed spatial light modulating system and method for driving the system Dec. 2, 1997
5691784 Apparatus for the projection of fringe-like light patterns Nov. 25, 1997
5689315 Light valve apparatus which is employed in a projection display system and in a view-finder system Nov. 18, 1997
5684548 Liquid crystal display element and micro-lens arrangement and a display using the same Nov. 4, 1997
5682214 Optical apparatus for controlling the wavefront of a coherent light Oct. 28, 1997
5671028 Liquid crystal display including a control member for providing a transparent visual range within a predetermined viewing angle and an opaque visual range outside the predetermined viewing ang Sep. 23, 1997
5657408 Optical device comprising a plurality of units having at least two geometrically-differentiated tapered optical waveguides therein Aug. 12, 1997
5654810 Liquid crystal display apparatus with a particular microlens array Aug. 5, 1997
5648858 Liquid crystal display which suppresses interference fringes Jul. 15, 1997
5617227 Light diffraction device using reconfigurable spatial light modulators and the fractional talbot effect Apr. 1, 1997
5615024 Color display device with chirped diffraction gratings Mar. 25, 1997
5608550 Front-lit liquid crystal display having brightness enhancing film with microridges which directs light through the display to a reflector Mar. 4, 1997
5600455 Prismatic member with coarsened portions or triangular prismatic and semi-circular prismatic members arranged on a flat light emitting surface Feb. 4, 1997
5598280 Film lens and a surface light source using the same Jan. 28, 1997
5581379 Rectangular based convex microlenses surrounded within a frame and method of making Dec. 3, 1996
5555109 Illumination system employing an array of microprisms Sep. 10, 1996
5521748 Light modulator with a laser or laser array for exposing image data May. 28, 1996
5519518 Display apparatus with a variable aperture stop means on each side of the modulator May. 21, 1996
5505804 Method of producing a condenser lens substrate Apr. 9, 1996
5504598 Large screen full color display with plural adjacent display panels and enlarging graded index lens array Apr. 2, 1996
5504597 Full color display with gradient index lens array disposed between phosphor emitters and liquid crystal display Apr. 2, 1996
5504602 LCD including a diffusing screen in a plane where emerging light from one pixel abuts light from adjacent pixels Apr. 2, 1996
5497254 Optical apparatus including a liquid crystal modulator Mar. 5, 1996
5434406 Hemispheric matrixsized imaging optical system Jul. 18, 1995
5408344 Reflection type liquid crystal display with selective reflecting means Apr. 18, 1995
5402324 Surface illuminant device Mar. 28, 1995
5398125 Liquid crystal projection panel having microlens arrays, on each side of the liquid crystal, with a focus beyond the liquid crystal Mar. 14, 1995
5355187 Liquid crystal projection display Oct. 11, 1994
5347382 Liquid crystal cell retarder with driving beyond retardance value and two cells for high speed Sep. 13, 1994
5333072 Reflective liquid crystal display overhead projection system using a reflective linear polarizer and a fresnel lens Jul. 26, 1994
5329387 Liquid crystal display device with display and compensation cells separated by distance larger than depth of focus of optical enlarger Jul. 12, 1994
5325218 Cholesteric polarizer for liquid crystal display and overhead projector Jun. 28, 1994
5206746 Transparent-scattering type optical device including a prism with a triangular longitudinal cross section Apr. 27, 1993
5193016 Non-linear device for amplifying the intensities of light rays that produce an image Mar. 9, 1993
5184238 Apparatus for projecting light onto a surface having reflector means for improving the brightness of the image Feb. 2, 1993
5166814 Liquid crystal display including a liquid filled membrane cushion and magnifier Nov. 24, 1992
5161041 Lighting assembly for a backlit electronic display including an integral image splitting and collimating means Nov. 3, 1992
5126882 Plane light source unit Jun. 30, 1992
5097352 Optical system including liquid crystal devices Mar. 17, 1992
5091795 Optical low-pass filter without using polarizers Feb. 25, 1992

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