Display, display system, image projection system, and movable object
The display includes a liquid-crystal panel, a heat-transfer member, and a light-diffusion structure. The liquid-crystal panel includes a display screen. The heat-transfer member is light-transmissive. The heat-transfer member is on an opposite side of the liquid-crystal panel from the display screen. The light-diffusion structure is between the liquid-crystal panel and the heat-transfer member.
1. A display comprising:
a liquid-crystal panel including a display screen and a pair of transparent electrodes for applying voltages across a liquid-crystal layer;
a heat-transfer member which is light-transmissive and is on an opposite side of the liquid-crystal panel from the display screen; and
a light-diffusion member including a light-diffusion structure between the liquid-crystal panel and the heat-transfer member, wherein
the light-diffusion structure is provided to each of a surface of the light-diffusion member facing the liquid-crystal panel and a surface of the light-diffusion member facing the heat-transfer member, and includes a plurality of fine particles.
2. The display according to claim 1 , wherein
the light-diffusion member includes an adherence suppression structure at a surface thereof facing the liquid-crystal panel.
3. The display according to claim 1 , wherein:
the heat-transfer member and the light-diffusion member have plate shapes; and
the light-diffusion member is thinner than the heat-transfer member.
4. The display according to claim 3 , wherein
the light-diffusion member has a thickness equal to or smaller than 300 μm.
5. The display according to claim 3 , wherein:
the light-diffusion member has a thickness equal to or smaller than 300 μm; and
an average particle size of the plurality of fine particles is equal to or smaller than 20 μm.
6. The display according to claim 1 , wherein:
the light-diffusion member has a transmittance equal to or larger than 70%; and
the light-diffusion member has haze equal to or larger than 30% and equal to or smaller than 90%.
7. The display according to claim 1 , wherein:
an average particle size of the plurality of fine particles is equal to or smaller than 20 μm.
8. The display according to claim 1 , further comprising a heat sink thermally coupled with the heat-transfer member.
9. The display according to claim 8 , wherein
the heat-transfer member has a thermal-conductivity higher than a thermal-conductivity of the liquid-crystal panel.
10. A display system comprising:
a display according to claim 1 ; and
a backlight.
11. An image projection system used as a head-up display, comprising:
the display system according to claim 10 ; and
a projection unit configured to form a virtual image corresponding to an image displayed on the display screen of the display system, in a target space.
12. A movable object comprising:
the display system according to claim 10 ; and
a movable object body where the display system is mounted.
13. A display comprising:
a liquid-crystal panel including a display screen and a pair of transparent electrodes for applying voltages across a liquid-crystal layer;
a heat-transfer member which is light-transmissive and is on an opposite side of the liquid-crystal panel from the display screen; and
a light-diffusion structure between the liquid-crystal panel and the heat-transfer member, wherein
the light-diffusion structure is provided to a surface of the liquid-crystal panel opposite from the display screen and includes a plurality of fine particles.
14. The display according to claim 13 , wherein
the light-diffusion structure is in contact with the heat-transfer member.
15. A display system comprising:
a display according to claim 13 ; and
a backlight.
16. An image projection system used as a head-up display, comprising:
the display system according to claim 15 ; and
a projection unit configured to form a virtual image corresponding to an image displayed on the display screen of the display system, in a target space.
17. A display comprising:
a liquid-crystal panel including a display screen and a pair of transparent electrodes for applying voltages across a liquid-crystal layer;
a heat-transfer member which is light-transmissive and is on an opposite side of the liquid-crystal panel from the display screen; and
a light-diffusion structure between the liquid-crystal panel and the heat-transfer member, wherein
the light-diffusion structure is provided to a surface of the heat-transfer member facing the liquid-crystal panel and includes a plurality of fine particles.
18. The display according to claim 17 , wherein
the light-diffusion structure is in contact with the liquid-crystal panel.
19. A display system comprising:
a display according to claim 17 ; and
a backlight.
20. An image projection system used as a head-up display, comprising:
the display system according to claim 19 ; and
a projection unit configured to form a virtual image corresponding to an image displayed on the display screen of the display system, in a target space.