Key board device |
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| 申请号 | JP5823788 | 申请日 | 1988-03-14 | 公开(公告)号 | JPH01232623A | 公开(公告)日 | 1989-09-18 |
| 申请人 | Toshiba Eng Co Ltd; | 发明人 | MASUO KAORU; | ||||
| 摘要 | PURPOSE: To prevent misoperation of key entry by having a key top to display an image induced by a character induction tube for inducing the image displayed on a plasma display to make image display according to ROM signal. CONSTITUTION: Display signal recorded in a ROM is entered into a plasma display 3 furnished on each key of a keyboard by replacing ROMs or selecting, and characters, etc., are image displayed. Characters, etc., plasma displayed are induced by a character induction tube 6 consisting of bundles of optical fibers and projected through a display lens 71 furnished on the key top 7 to come into the sight of operator. When the operator is making key entry, depress ing the appropriate key top 7 for entry depresses the conjugate character induc tion tube 6 and also a switch drive plate 8, and a reed relay switch 51 is driven to emit a key signal, and when the key top 7 is put free, the key is pushed up by a spring 9 to complete the key entry procedure for one character. COPYRIGHT: (C)1989,JPO&Japio |
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| 权利要求 | |||||||
| 说明书全文 | |||||||
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