发明名称 |
DISPLAY AND ELECTRONIC FILING DEVICE CONTAINING SAME |
摘要 |
<p>PURPOSE:To quickly change the aspect ratio of a display screen to a desired value with no intervention of an operator by using a means which rotates automatically a display device according to the change of the aspect ratio of the picture data shown on a display screen or an external command. CONSTITUTION:When a command is received from an operator for rotation of a display part 112, a main control part 1 gives a start instruction S to a display rotation control part 9. Thus the part 9 drives a motor 115c via a driver circuit 10. Then the part 1 decides the rotational direction of the part 112 based on the rotational position information received from the rotational position detecting switches 117 and 118. Then the part 1 gives a rotational direction command to the circuit 10 to start the drive of the motor 115c and turns a display screen 111 by 90 deg.. The part 112 is automatically rotated in an automatic rotation mode so as to secure an optimum aspect ratio.</p> |
申请公布号 |
JPH0231222(A) |
申请公布日期 |
1990.02.01 |
申请号 |
JP19880182128 |
申请日期 |
1988.07.21 |
申请人 |
HITACHI LTD |
发明人 |
KISHIMOTO KAZUTOMO;OKUMURA MASAHIRO;MASHITA TAMON;SAKAMOTO TATSUYA;TAKANO YOJI |
分类号 |
G06F1/16;G06F3/048;G06F3/153;G06T1/00;G09G1/00;G09G5/36;G09G5/391 |
主分类号 |
G06F1/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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