Reflection TN-ECB having particular relationships between perpen

Details Reflection TN-ECB having particular relationships between perpen Reflection TN-ECB having particular relationships between perpen

1999-04-14

2000-09-12

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349 75, 349 78, 349130, G02F 11335, G02F 11347, G02F 11337

Patent

active

061185078

ABSTRACT:
The orientation of a reflection type liquid crystal display device is improved to widen the field angle. A panel is provided with a transparent first substrate located on the external light incident side, a second substrate located on the opposite side bonded to the first substrate with interposition of a predetermined space, a twist-oriented nematic liquid crystal layer supported in the space between both substrates, and electrodes for applying a voltage to the nematic liquid crystal layer formed on both substrates. The nematic liquid crystal layer remains in twist orientation and functions as a quarter wavelength layer to allow the external light to pass in cooperation with the deflection plate and the quarter wavelength plate for displaying white while no voltage is applied. On the other hands the nematic liquid crystal layer is converted to perpendicular orientation and loses the function of a quarter wavelength layer not to allow the external light to pass for displaying black. The orientation direction 3U of nematic liquid crystal molecules which are in contact with the first substrate is prescribed in a range of 168.5.+-.10 degrees with respect to the upward direction of the screen of the panel, and the orientation direction 3L of nematic liquid crystal molecules which are in contact with the second substrate is prescribed in a range of 51.5.+-.10 degrees.

REFERENCES:
patent: 5325218 (1994-06-01), Willet et al.
patent: 5361151 (1994-11-01), Sonehara et al.
patent: 5731858 (1998-03-01), Hisatake et al.
patent: 5990991 (1999-11-01), Tillin et al.

Affiliated with

Also associated with

Rating

Reflection TN-ECB having particular relationships between perpen does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reflection TN-ECB having particular relationships between perpen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reflection TN-ECB having particular relationships between perpen will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-100551