Liquid crystal display apparatus integrated with tablet with non

Details Liquid crystal display apparatus integrated with tablet with non Liquid crystal display apparatus integrated with tablet with non

1996-11-06

1998-11-03

Gross, Anita Pellman

Liquid crystal cells, elements and systems

Liquid crystal system

Liquid crystal writing tablet

345104, 345175, G02F 11335, G09G 336, G09G 500

Patent

active

058317023

ABSTRACT:
A liquid crystal display apparatus integrated with a tablet for preventing the undesired color development due to double refraction of light passing the STN liquid crystal display cell from occurring also in high-temperature environment. An STN liquid crystal display cell and a tablet are arranged between a pair of polarizing plates. A compensating liquid crystal layer for canceling the wavelength scattering due to double refraction of light passing the liquid crystal display cell is arranged between opposing coordinates detecting electrodes of this tablet. In addition, nonconductive spacer particles and conductive particles are mixed in the compensating liquid crystal layer.

REFERENCES:
patent: 5465103 (1995-11-01), Yoshioka
patent: 5550659 (1996-08-01), Fujieda et al.
patent: 5640258 (1997-06-01), Kurashima et al.
patent: 5668353 (1997-09-01), Matsuda
patent: 5729319 (1998-03-01), Inou et al.

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