Three-dimensional image display device and three-dimensional image display method

A three-dimensional image display method, in which one pixel included in each pixel section, a plurality of said pixel sections arrayed in a matrix state on a display panel, displays an image for the right eye and the other pixel displays an image for the left eye, optical unit emits light emitted from the pixels displaying said image for the right eye and light emitted from the pixels displaying said image for the left eye in directions different from each other, and a viewer positions a midpoint between the right eye and the left eye in a three-dimensional visible range where the light emitted from the pixels displaying said image for the right eye is made incident to said right eye and the light emitted from the pixels displaying said image for the left eye is made incident to said left eye,

• wherein when the distance between said midpoint and said display panel is set to D (mm) and the definition of said pixel sections in at least one array direction out of the array directions of said pixel sections of said display panel is set to X (dpi), said distance D and said definition X satisfy the following expression.
• 24 X ≧ 25.4 D × tan ⁡ ( 1 ′ )

A three-dimensional image display method, in which one pixel included in each pixel section, a plurality of said pixel sections arrayed in a matrix state on a display panel, displays an image for the right eye and the other pixel displays an image for the left eye, optical unit emits light emitted from the pixels displaying said image for the right eye and light emitted from the pixels displaying said image for the left eye in directions different from each other, and a viewer positions a midpoint between the right eye and the left eye in a three-dimensional visible range where the light emitted from the pixels displaying said image for the right eye is made incident to said right eye and the light emitted from the pixels displaying said image for the left eye is made incident to said left eye,

• wherein the distance between said midpoint and said display panel is set to 500 mm or more, and the definition of said pixel sections in at least one array direction out of the array directions of said pixel sections of said display panel is set to 175 dpi or more.