Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Reflecting type liquid crystal display device










Image Number 10 for United States Patent #6429920.

An object of the invention is to obtain achromatic display with high contrast and high lightness. A reflection type liquid crystal display device of NB mode comprises a liquid crystal cell having an STN type liquid crystal layer; a first phase difference plate; a second phase difference plate; a polarizing plate, the first and second phase difference plates and polarizing plate being disposed on one surface of the liquid crystal cell in this order; and a reflecting layer disposed in the liquid crystal cell, the reflecting layer forming the other surface of the liquid crystal cell. The liquid crystal layer retardation .DELTA.nLC.dLC, the first phase difference plate retardation .DELTA.n1.d1 and the second phase difference plate retardation .DELTA.n2.d2 are selected from the ranges of 660 nm to 830 nm, 120 nm to 240 nm and 300 nm to 430 nm, respectively. A twist angle .chi. is selected from the range of 220.degree. to 260.degree.. Predetermined angles .theta., .phi. and .phi. are selected from the ranges of -130.degree. to -75 , -20.degree. to -60.degree. and -15.degree. to -45.degree., respectively.








 
 
  Recently Added Patents
Anti-FGFR3 antibodies and methods using same
Methods and systems for managing print device supplies using cloud administration system configured for chemical signature tracking
(4943
Vanilloid receptor ligands and use thereof for the production of pharmaceutical preparations
Recording medium, playback device, integrated circuit
Light receiving element with offset absorbing layer
Methods and apparatus to identify exposure to 3D media presentations
  Randomly Featured Patents
Mounting system for assembling components
Motor
Hydraulic steering system with load signal
Method and apparatus for controlling a supply voltage to a power amplifier
Meat tenderizer
Feed hopper for providing preheated aggregate material
Probe head for a coordinate measuring machine
Heat exchanger system and method of operating the same
Electronic transmission control system for a bicycle or the like
Multifocal intraocular lens simulator and method of simulating multifocal intraocular lens