DISPLAY SYSTEM, HEAD-UP DISPLAY, AND MOVING VEHICLE
A display system includes a display and a light-transmitting member. The light-transmitting member has light-transmitting properties and is disposed to face a display screen of the display to dissipate heat generated by the display to outside of the display. The light-transmitting member has a higher thermal conductivity than quartz.
1 . A display system comprising:
a display having a display screen configured to let light emerge from the display screen; and
a light-transmitting member having light-transmitting properties,
the light-transmitting member being disposed to face the display screen of the display to dissipate heat generated by the display to outside of the display,
the light-transmitting member having a higher thermal conductivity than quartz.
2 . The display system of claim 1 , further comprising a bonding member arranged between the display and the light-transmitting member and bonding the display screen and the light-transmitting member together.
3 . The display system of claim 2 , wherein
respective refractive indices f1, f2, and f3 of the display, the light-transmitting member, and the bonding member satisfy the following conditional expression (1):
f1<f3<f2 (1).
4 . The display system of claim 1 , further comprising a pressing member made of a material having a heat dissipation capability and pressing the light-transmitting member toward the display screen.
5 . The display system of claim 4 , further comprising a buffer member arranged between the light-transmitting member and the pressing member.
6 . The display system of claim 1 , further comprising a light-diffusing member disposed opposite from the light-transmitting member with respect to the display and configured to diffuse light transmitting through the light-diffusing member.
7 . The display system of claim 1 , wherein
the display has an opposite surface opposite from the display screen, and
the display system further comprises a frame member made of a material having a heat dissipation capability and disposed to dissipate heat, transferred from the display through the opposite surface, to outside of the display.
8 . The display system of claim 7 , wherein
the frame member includes a holder to hold the light-transmitting member and the display to fix the light-transmitting member and the display with respect to the frame member.
9 . The display system of claim 8 , wherein
a surface, facing the display screen, of the light-transmitting member has a larger area than the display screen.
10 . The display system of claim 9 , wherein
the holder includes:
a first holding portion to hold the light-transmitting member; and
a second holding portion to hold the display.
11 . The display system of claim 1 , wherein
the light-transmitting member is made of sapphire glass.
12 . The display system of claim 4 , wherein
the pressing member has an opening positioned to face the display area of the display.
13 . The display system of claim 4 , wherein
the pressing member is disposed opposite from the display with respect to the light-transmitting member and the pressing member comes into contact with the light-transmitting member from a side, opposite from the display, thereby pressing the light-transmitting member toward the display.
14 . The display system of claim 5 , wherein
the buffer member has an opening positioned to face the display area of the display.
15 . The display system of claim 7 , wherein
the frame member is disposed in contact with a peripheral edge portion of a surface, opposite from the display, of the light-diffusing member.
16 . The display system of claim 8 , wherein
the holder is one of a plurality of holders arranged around the light-transmitting member and the display.
17 . A head-up display comprising:
the display system of claim 1 ; and
a projection optical system configured to project, onto a windshield, display light emerging from the display system.
18 . A moving vehicle comprising:
the head-up display of claim 17 ; and
a moving vehicle body to be equipped with the head-up display.