Title:
LIQUID CRYSTAL DISPLAY DEVICE
Document Type and Number:
Japanese Patent JP3049623
Kind Code:
B2
Abstract:
PURPOSE: To obtain excellent relation among a phase difference plate, a liquid crystal panel and a polarizing plate so as to obtain visual angle characteristics capable of improving the reversal of a display.
CONSTITUTION: The liquid crystal display device consists of the liquid crystal panel 14 constituting by enclosing a liquid crystal 13 between a couple of substrates 11 and 12, the phase difference plate 17 which is arranged on at least one side of the liquid crystal panel 14, and a couple of polarizing plates 15 and 16 for which the liquid crystal panel 14 and phase difference plate 17 are held therebetween and the transmission axes of polarized light are vertical; and the orientation processing direction of the substrate 12 which is close to the phase difference plate 17 is in parallel with the phase delay axis of the phase difference plate 17 and the phase delay axis of the phase difference plate 17 is in parallel with the transmission axis of the polarizing plate 16 which is close to the phase difference plate 17. Then nx>ny=nz is satisfied and (nx-ny)×d is 200-500nm, where (d) is cell thickness and nx, ny, and nz are the refractive indexes of the phase difference plate 17 in an (x)-axial, a (y)-axial, and a (z)-axial direction.
Inventors:
Hidefumi Yoshida
Kazutaka Hanaoka
Kimiaki Nakamura
Kazutaka Hanaoka
Kimiaki Nakamura
Application Number:
JP11918192A
Publication Date:
June 05, 2000
Filing Date:
May 12, 1992
Export Citation:
Assignee:
富士通株式会社
International Classes:
G02F1/1335; G02F1/13363; (IPC1-7): G02F1/13363
Domestic Patent References:
| JP432818A | ||||
| JP4153621A | ||||
| JP5188367A | ||||
| JP1254917A | ||||
| JP247625A |
Attorney, Agent or Firm:
Aoki Akira (3 outside)