Concealing a bright defect using light blocking means to block o

Details Concealing a bright defect using light blocking means to block o Concealing a bright defect using light blocking means to block o

1995-08-24

1996-08-13

Gross, Anita Pellman

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 40, 359 41, 359 59, G02F 11335, G02F 1136, G02F 11333

Patent

active

055462065

ABSTRACT:
A method of concealing a bright defect in a transmission display device which displays by selectively transmitting plural beams different wavelength bands shed onto corresponding pixels of a transmission display element through a microlens according to a voltage applied to each pixel is arranged such that only a beam of a wavelength area shed onto a defective luminance point pixel is selectively blocked. On the other hand, the beam shed onto normal pixels surrounding the defective pixel, wherein a bright defect is not generated would be transmitted through the liquid crystal display panel without being blocked. Therefore, the method enables only the defective luminance point pixel to be concealed without affecting the normal pixels, thereby improving a display quality of the transmission display device.

REFERENCES:
patent: 4798448 (1989-01-01), van Raalte
patent: 5132830 (1992-07-01), Fukutani et al.
patent: 5142386 (1992-08-01), Ishihara
patent: 5267066 (1993-11-01), Nakai et al.
patent: 5280374 (1994-01-01), Nakai et al.
patent: 5307185 (1994-04-01), Jones et al.
patent: 5368991 (1994-11-01), Uchikawa et al.
patent: 5473453 (1995-12-01), Kuramatsu

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