| 摘要 |
PROBLEM TO BE SOLVED: To drastically reduce power consumption and also to automatically provide an optimum display definition a user does not perform any complicated adjusting operation in an electronic equipment provided with reflection type liquid crystal display. SOLUTION: This equipment is provided with a light source 22 illuminating the display screen of a reflection type liquid crystal display(LCD) 20, and performs the ON/OFF control of the light source 22 and also automatically controls the illuminating light quantity of the source 22 based on the brightness of surroundings detected by means (for example, a CCD 14, a strobe light control sensor 34, a photosensor 40) for detecting an outer light quantity. Moreover, when the light source is not used, the device suppresses wasteful power consumption by turning off the LCD 20 automatically under a situation where the surroundings is so dark that the screen of the display can not be identified.
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