| 摘要 |
There is provided a display device including an element substrate that has a display area; and a counter substrate. When it is assumed that the length of the shortest edge of the display area is X1, the length of a longest diagonal line of the display area is X3, the thickness of the counter substrate is L1, the refraction index of the counter substrate is n1, the refractive index of the air is n2, and the minimum value of an angle, which is generated between a progress direction of light emitted from the organic EL elements and a normal vector direction is totally reflected in the surface, is α, the relationship of X1/(2 tan α)≦L1≦X3/(tan α) is realized. |
| 主权项 |
1. A display device comprising:
an element substrate that has a polygonal display area on which a plurality of light emitting elements are arranged; and a transparent substrate that faces the element substrate and includes a first surface which faces the element substrate, a second surface which is arranged on a side opposite to the first surface, and side surfaces which cross the first surface and the second surface, wherein light, which is emitted from the light emitting elements, is ejected from the second surface as display light, and wherein, when it is assumed that a length of a shortest edge from among edges which form a circumference of a shape of the display area is X1, a length of a longest diagonal line from among diagonal lines of the shape of the display area is X3, a thickness of the transparent substrate is L1, a refraction index of the transparent substrate is n1, a refractive index of a medium which comes into contact with the second surface is n2, and a minimum value of an angle, which is generated between a progress direction of light emitted from the light emitting elements and a normal vector direction of the second surface when the light emitted from the light emitting elements is totally reflected in the second surface, is α, Expression (1) described below is realized.
X1/(2 tan α)≦L1≦X3/(tan α) (1) |
