Title:
【発明の名称】入力一体型表示装置
Document Type and Number:
Japanese Patent JP3140837
Kind Code:
B2
Abstract:
A display unit of an integral input type is provided with a display panel (60) having a liquid crystal (32) as a display medium. In the display unit, an optical waveguide (36,73) is integrally formed in the shape of a matrix and substantially guides light having a predetermined wavelength in parallel with a surface of a display substrate (30,31,71,72,85,88). Thus, light emitted by a pen held by the user is guided to the periphery of the display substrate where photosensors are used to determine the position pointed at by the pen.
Inventors:
Hiroshi Ishii
Yoshitaka Yamamoto
Yoshitaka Yamamoto
Application Number:
JP13914592A
Publication Date:
March 05, 2001
Filing Date:
May 29, 1992
Export Citation:
Assignee:
Sharp Corporation
International Classes:
G06F3/041; G02F1/1333; G02F1/1362; G06F3/033; G09G3/36; (IPC1-7): G06F3/033; G06F3/03; G09G3/36
Domestic Patent References:
| JP6421520A | ||||
| JP63184823A | ||||
| JP5539955A | ||||
| JP5488734A | ||||
| JP63237120A | ||||
| JP1224727A |
Other References:
【文献】特許2863363(JP,B2)
Attorney, Agent or Firm:
Yoshio Kawaguchi (1 person outside)