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 via a parallax barrier, characterized in that the electronic device comprises:
 a first casing and a second casing movably connected to the first casing, the display unit rotatably being configured in the second casing;   a determination unit that determines a screen direction of the display unit by detecting a rotation direction of the display unit; and   a display control unit that, on a basis of a result determined by the determination unit, performs a switch control of a display associated with the three-dimensional display by changing a barrier pattern of the parallax barrier,   wherein the display control unit performs the switch control to not to provide the three-dimensional display if a determined screen direction of the display unit is a vertically long direction.   
     
     
         2 . The electronic device according to  claim 1 ,
 wherein the display control unit, if a change in the screen direction of the display unit occurs during the three-dimensional display, switches to a control for providing the three-dimensional display in accordance with a changed screen direction of the display unit, using conditions including a previously used condition on a visual distance associated with a visual recognition of the three-dimensional display before the change occurred in the screen direction of the display unit.   
     
     
         3 . 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. 
   
     
     
         4 . The electronic device according to  claim 1 , further comprising:
 a parameter acquiring unit that acquires at least a conditional parameter including a visual distance associated with a visual recognition of the three-dimensional display, and a control parameter associated with an operation control including a control value of the display unit, the conditional parameter being tied to the screen direction, the control parameter being tied to the conditional parameter,   wherein the display control unit switches to a control for providing the three-dimensional display on a basis of the conditional parameter that is tied to the result determined by the determination unit and the control parameter that is tied to the conditional parameter.   
     
     
         5 . The electronic device according to  claim 4 , further comprising a parameter storage unit that preliminarily stores at least the conditional parameter among parameters acquired by the parameter acquiring unit. 
     
     
         6 . The electronic device according to  claim 5 , wherein the parameter storage unit identifiably stores a parameter used for performing the switch control by the display control unit, such that a default value or a previously used value is identifiable. 
     
     
         7 . The electronic device according to  claim 4 , wherein the parameter acquiring unit acquires the control parameter by an operation that uses the acquired conditional parameter. 
     
     
         8 . 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.   
     
     
         9 . The electronic device according to  claim 1 , wherein if the determined screen direction of the display unit is an oblique direction, the display control unit performs the switch control to not to provide the three-dimensional display. 
     
     
         10 . 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 the determined screen direction of the display unit. 
     
     
         11 . The electronic device according to  claim 1 ,
 wherein the display unit comprises
 a display panel that displays the image, and 
 the parallax barrier that makes the image displayed on the display panel visually recognizable such that parallax occurs, and 
   wherein the display control unit performs the switch control by controlling the parallax barrier.   
     
     
         12 . The electronic device according to  claim 11 ,
 wherein the display panel displays the image in which pixels constituting both of two images with parallax is orderly arrayed in a left-right direction in the screen direction of the display unit,   wherein the parallax barrier includes the barrier pattern formed thereon to transmit the image in a different direction in accordance with an array of pixels constituting the image displayed on the display panel, and   wherein the display control unit performs a switch control of a direction of the pattern in the parallax barrier, so as to have parallax in accordance with the determined screen direction of the display unit.   
     
     
         13 . The electronic device according to  claim 11 , wherein the display control unit performs the switch control to not to provide the three-dimensional display by controlling the parallax barrier to transmit the image through an entire portion of the parallax barrier. 
     
     
         14 . 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 via a parallax barrier, a first casing and a second casing movably connected to the first casing, the display unit being rotatably configured in the second casing, to realize functions comprising:
 a determination function for determining a screen direction of the display unit by detecting a rotation direction of the display unit, and   a display control function for performing, on a basis of a determined result, a switch control of a display associated with the three-dimensional display by changing a barrier pattern of the parallax barrier,   wherein the display control function is configured to perform the switch control to not to provide the three-dimensional display if a determined screen direction of the display unit is a vertically long direction.