Liquid crystal display combined with signal input tablet

Details Liquid crystal display combined with signal input tablet Liquid crystal display combined with signal input tablet

1988-04-19

1990-07-31

Moore, David K.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340712, 178 18, 350330, G09G 318

Patent

active

049453483

ABSTRACT:
In a liquid crystal display combined with a signal input tablet of the type which includes a light source, a liquid crystal display disposed on the light source and a transparent tablet for detecting a planar write position by a hand-writing pen which tablet is disposed on the liquid crystal display, the present invention is characterized in that a two-dimensional lens array is disposed as one-to-one erect imaging optical system between the liquid crystal display and the transparent tablet so that the display image of the liquid crystal display is projected as the same size erect image on the surface of the transparent tablet having a light diffusion operation.

REFERENCES:
patent: 4177354 (1979-12-01), Mathews
patent: 4639720 (1987-01-01), Rympalski et al.
patent: 4641354 (1989-02-01), Fukunaga et al.
patent: 4679909 (1989-07-01), Hamada et al.
patent: 4723836 (1988-02-01), Kono et al.
patent: 4730186 (1988-03-01), Koga et al.
patent: 4751509 (1988-06-01), Kubota et al.
patent: 4794634 (1988-12-01), Torihata et al.
patent: 4799050 (1989-01-01), Prince et al.
patent: 4893398 (1989-10-01), Hubby, Jr.

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