Electronic Device and Recording Medium

Abstract

An electronic device comprises a display unit, determination unit, parameter acquiring unit, and display control unit, and is configured as follows: the display unit can provide a three-dimensional display that makes an image stereoscopically viewable; the determination unit determines a posture of the display unit; the parameter acquiring unit acquires a control parameter that is related to the posture and intended to control a display operation of the display unit; the display control unit controls, on the basis of the control parameter acquired by the parameter acquiring unit, the display operation of the display unit, which is associated with the three-dimensional display.

What is claimed is: 
     
         1 . An electronic device comprising a display unit that can provide a three-dimensional display making an image stereoscopically viewable, characterized in that the electronic device comprises:
 a determination unit that determines at least a screen direction of the display unit;   a parameter acquiring unit that acquires at least a conditional parameter associated with a visual recognition of the three-dimensional display, and a control parameter associated with an operation control for the display unit, the conditional parameter being tied to the screen direction, the control parameter being tied to the conditional parameter; and   a display control unit that performs a switch control associated with the three-dimensional display on a basis of the conditional parameter that is tied to a result determined by the determination unit and the control parameter that is tied to the conditional parameter,   wherein at a first-time start of the three-dimensional display, the display control unit performs the switch control using a predetermined default value of the conditional parameter, and   wherein at a start of the three-dimensional display except for the first-time start of the three-dimensional display, the display control unit performs the switch control using a conditional parameter used in a previous three-dimensional display, or, if a change in the screen direction of the display unit occurs during the three-dimensional display, the display control unit performs the switch control in accordance with a changed screen direction of the display unit using the conditional parameter that is used before the change occurred in the screen direction of the display unit.   
     
     
         2 . The electronic device according to  claim 1 ,
 wherein the determination unit further comprises an image determination unit that determines whether or not an image to be displayed on the display unit has been created for the three-dimensional display, and   wherein the display control unit switches to determine whether to provide the three-dimensional display on a basis of a result determined by the image determination unit.   
     
     
         3 . The electronic device according to  claim 1 , further comprising:
 an inquiry unit that asks a user of the electronic device whether the three-dimensional display is acceptable,   wherein the display control unit changes a condition associated with the visual recognition of the three-dimensional display to be used in the switch control, on a basis of an input in response to inquiry by the inquiry unit.   
     
     
         4 . The electronic device according to  claim 1 , further comprising:
 a parameter storage unit that preliminarily stores at least the conditional parameter among parameters acquired by the parameter acquiring unit,   wherein the parameter storage unit identifiably stores a condition associated with the visual recognition of the three-dimensional display used in the switch control.   
     
     
         5 . The electronic device according to  claim 1 , wherein the display control unit switches to determine whether to provide the three-dimensional display on a basis of a determined screen direction of the display unit. 
     
     
         6 . The electronic device according to  claim 5 , wherein the display control unit performs the switch control to not to provide the three-dimensional display if the determined screen direction of the display unit is a vertically long direction. 
     
     
         7 . The electronic device according to  claim 5 , wherein the display control unit performs the switch control to provide the three-dimensional display if the determined screen direction of the display unit is a horizontally long direction. 
     
     
         8 . The electronic device according to  claim 5 , wherein the display control unit performs the switch control to not to provide the three-dimensional display if the determined screen direction of the display unit is an oblique direction. 
     
     
         9 . The electronic device according to  claim 1 , wherein
 the display control unit performs the switch control so as to stop a display operation in accordance with a determined screen direction of the display unit.   
     
     
         10 . A computer-readable non-transitory recording medium recording a program that instructs a computer, which controls an electronic device comprising a display unit that can provide a three-dimensional display making an image stereoscopically viewable, to realize functions comprising:
 a determination function for determining at least a screen direction of the display unit, a parameter acquiring function for acquiring at least a conditional parameter associated with a visual recognition of the three-dimensional display, and a control parameter associated with an operation control for the display unit, the conditional parameter being tied to the screen direction, the control parameter being tied to the conditional parameter; and   a display control function for
 at a first-time start of the three-dimensional display, performing a switch control using a predetermined default value of the conditional parameter on a basis of the conditional parameter that is tied to a determination result and the control parameter that is tied to the conditional parameter, and 
 at a start of the three-dimensional display except for the first-time start of the three-dimensional display, performing the switch control using a conditional parameter used in a previous three-dimensional display, or, if a change in the screen direction of the display unit occurs during the three-dimensional display, performing the switch control in accordance with a changed screen direction of the display unit using the conditional parameter that is used before the change occurred in the screen direction of the display unit on a basis of the conditional parameter that is tied to a determination result and the control parameter that is tied to the conditional parameter.