Light-emitting device and electronic apparatus
A light-emitting device includes pixels each including subpixels. Each subpixel includes light-emitting elements that emit respective pieces of light of colors different from each other, and a light-shielding film having openings at respective positions where the openings are opposed to the respective light-emitting elements at predetermined intervals. The openings have respective widths different from each other. The widths of the respective openings in a first direction and a second direction are sized to allow the light-shielding film to block a portion of the pieces of light emitted from the respective light-emitting elements and thereby to cause a 45-degree luminance viewing angle to be different between the first and second directions, and are sized to cause color differences (Δu′v′) at a 45-degree chromaticity viewing angle (u′v′) in the first and second directions to be 0.020 or less. The 45-degree luminance viewing angle is expressed in a unit of cd/m 2 .
1. A light-emitting device comprising
a plurality of pixels each including a plurality of subpixels,
each of the subpixels including
a plurality of light-emitting elements that emit respective pieces of light of colors different from each other, and
a light-shielding film having a plurality of openings, the openings being provided at respective positions at which the openings are opposed to the respective light-emitting elements at a predetermined interval, the openings having respective widths that are different from each other,
the widths of the respective openings in a first direction and a second direction being sized to allow the light-shielding film to block a portion of the pieces of light emitted from the respective light-emitting elements and thereby to cause a 45-degree luminance viewing angle in the first direction and a 45-degree luminance viewing angle in the second direction to be different, the 45-degree luminance viewing angle being expressed in a unit of cd/m2,
the widths of the respective openings in the first direction and the second direction being sized to cause color differences (Δu′v′) at a 45-degree chromaticity viewing angle (u′v′) in the first direction and the second direction to be 0.020 or less.
2. The light-emitting device according to claim 1 , wherein the widths of the respective openings in the first direction and the second direction are sized to cause the color differences to be 0.004 or less.
3. The light-emitting device according to claim 1 , wherein the widths of the respective openings in the first direction and the second direction are sized to cause a luminance difference ΔL at the 45-degree luminance viewing angle to exceed 3% in any of the colors of the respective pieces of light that are emitted,
the luminance difference ΔL being obtained from the following expression:
Δ L =(( L max− L min)/ L max)×100
where L max denotes larger one of the 45-degree luminance viewing angle in the first direction and the 45-degree luminance viewing angle in the second direction, and L min denotes smaller one of the 45-degree luminance viewing angle in the first direction and the 45-degree luminance viewing angle in the second direction.
4. The light-emitting device according to claim 1 , wherein each of the light-emitting elements has an organic light-emitting layer including a coated film.
5. The light-emitting device according to claim 1 , wherein the openings have constant pitches in the first direction and the second direction.
6. The light-emitting device according to claim 1 , further comprising a pixel regulator that defines the light-emitting elements in the first direction, and defines widths of the respective light-emitting elements in the first direction.
7. The light-emitting device according to claim 1 , wherein resolution of the pixels is 100 ppi or more.
8. An electronic apparatus with a light-emitting device as a display device, the light-emitting device comprising
a plurality of pixels each including a plurality of subpixels,
each of the subpixels including
a plurality of light-emitting elements that emit respective pieces of light of colors different from each other, and
a light-shielding film having a plurality of openings, the openings being provided at respective positions at which the openings are opposed to the respective light-emitting elements at a predetermined interval, the openings having respective widths that are different from each other,
the widths of the respective openings in a first direction and a second direction being sized to allow the light-shielding film to block a portion of the pieces of light emitted from the respective light-emitting elements and thereby to cause a 45-degree luminance viewing angle in the first direction and a 45-degree luminance viewing angle in the second direction to be different, the 45-degree luminance viewing angle being expressed in a unit of cd/m2,
the widths of the respective openings in the first direction and the second direction being sized to cause color differences (Δu′v′) at a 45-degree chromaticity viewing angle (u′v′) in the first direction and the second direction to be 0.020 or less.