| 摘要 |
PROBLEM TO BE SOLVED: To improve the using efficiency of a display screen, and to improve the convenience of a user who has poor eyesight by automatically operating the display size of a screen corresponding to the eyesight of the user such as poor eyesight or presbyopia for setting it so as to be easily viewed by the user. SOLUTION: Display size data are recorded in a card, and the size of a screen is displayed based on the size data. When the display size data is changed by an enlarging and reducing means 34, the changed data are recorded in the card. When the display size data are absent, the screen is displayed according to mean eyesight based on age, and when the screen is changed by the enlarging and reducing means 34, the data are magnetically recorded in the card. |
