Electronic apparatus, luminance control method, and storage medium

An electronic apparatus comprising:

• a display unit;
• a light detecting unit disposed on a back side of a display surface of the display unit;
• and
• a processing device configured to perform operations comprising:
• controlling a luminance of the display unit based on information related to light detected by the light detection unit;
• and
• judging a reliability of the information related to light detected by the light detecting unit,
• wherein:
• the processing device controls the luminance of the display unit when it is judged that the reliability is high,
• the processing device suppresses control of the luminance of the display unit when it is judged that the reliability is low,
• the processing device judges whether or not a user touches an influence area of the touch screen unit, the influence area corresponding to an area where the light detecting unit is disposed,
• the processing device judges that the reliability is high when it is judged that the user does not touch the influence area, and controls the luminance of the display unit,
• the processing device judges that the reliability is low when it is judged that the user touches the influence area, and suppresses the control of the luminance of the display unit, and
• the processing device maintains the luminance of the display unit at a luminance immediately before operation of the touch screen is detected, when it is judged that the reliability is at least a predetermined value.

A luminance control method performed by an electronic apparatus comprising a display unit and a light detection unit disposed on a back side of a display surface of the display unit, the method comprising:

• judging a reliability of information related to light detected by the light detection unit;
• judging whether the reliability is high or low, and determining control of a luminance of the display unit based on the judgment of whether the reliability is high or low, such that the luminance of the display unit is controlled when it is judged that the reliability is high, and control of the luminance of the display unit is suppressed when it is judged that the reliability is low,
• wherein:
• the display unit includes a liquid crystal display device,
• the judging the reliability of the information comprises judging whether or not a liquid crystal shutter of the liquid crystal display device is in a transmissive state, and
• the judging whether the reliability is high or low comprises judging that the reliability is high when it is judged that the liquid crystal shutter is in the transmissive state, and judging that the reliability is low when it is judged that the liquid crystal shutter is not in the transmissive state.

A non-transitory computer-readable storage medium storing a program executable by a computer which controls an electronic apparatus having a display unit and a light detection unit disposed on a back side of a display surface of the display unit, the program being executable by the computer to control the electronic apparatus to perform operations including:

• judging a reliability of information related to light detected by the light detection unit;
• controlling a luminance of the display unit when it is judged that the reliability is high;
• and
• suppressing control of the luminance of the display unit when it is judged that the reliability is low,
• wherein:
• the display unit includes a liquid crystal display device,
• the judging the reliability of the information comprises judging whether or not a liquid crystal shutter of the liquid crystal display device is in a transmissive state,
• when it is judged that the liquid crystal shutter is in the transmissive state, the reliability is judged to be high and the luminance of the display unit is controlled, and
• when it is judged that the liquid crystal shutter is not in the transmissive state, the reliability is judged to be low, and the control of the luminance of the display unit is suppressed.