Abstract: An air conditioning control system includes: an air pressure measurement unit (111) configured to measure an air pressure value; an air conditioning unit (136) whose wind direction and airflow volume are changeable; a wind velocity calculation unit (132) configured to calculate a wind velocity of wind received by a portable terminal (110) from a variation in a plurality of atmospheric pressure values and to specify a presence direction that is a direction in which the portable terminal (110) is present with respect to the air conditioner (130); an air conditioning control determination unit (134) configured to determine a wind direction and an airflow volume of the air conditioning unit (136) in accordance with the wind velocity and the presence direction; and an air conditioning control unit (135) configured to control the air conditioning unit (136) so that the determined wind direction and airflow volume are obtained.

Abstract: An air conditioning control system includes: an air pressure measurement unit (111) configured to measure an air pressure value; an air conditioning unit (136) whose wind direction and airflow volume are changeable; a wind velocity calculation unit (132) configured to calculate a wind velocity of wind received by a portable terminal (110) from a variation in a plurality of atmospheric pressure values and to specify a presence direction that is a direction in which the portable terminal (110) is present with respect to the air conditioner (130); an air conditioning control determination unit (134) configured to determine a wind direction and an airflow volume of the air conditioning unit (136) in accordance with the wind velocity and the presence direction; and an air conditioning control unit (135) configured to control the air conditioning unit (136) so that the determined wind direction and airflow volume are obtained.

Abstract: The backlight device used for a liquid crystal display device includes (a) an inverted-prism sheet, (b) a light-guide arranged adjacent to the inverted-prism sheet, (c) a light-reflection sheet arranged adjacent to the light-guide, and (d) a light-source emitting a light into the light-guide. The light-guide is formed on a first surface thereof facing the light-reflection sheet with at least one groove defining a light-reflection surface at which a light provided from the light-source is reflected obliquely towards the inverted-prism sheet.