Indication device

Abstract

The present invention aims to provide a more suitable display device. According to the present invention, it contributes to Sustainable Development Goal 9, "Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation." [Solution] The display device comprises a display panel capable of emitting image light, a light source device including a light source that emits light from the light source to the display panel, a heat dissipation unit connected to the light source, and a housing in which the light source device and the heat dissipation unit are arranged inside and the display panel is installed on the upper side. In the housing, an exhaust port is formed downstream of the airflow that exchanges heat with the heat dissipation unit, and an intake port is formed upstream of the airflow. The opening area of ​​the exhaust port is smaller than the opening area of ​​the intake port.

Claims

1. A display panel capable of emitting video light, A light source device that includes a light source and emits light from the light source to the display panel, A first heat dissipation unit connected to the light source, The housing comprises the light source device and the first heat dissipation unit arranged inside, and the display panel mounted on the upper side. Equipped with, In the housing, an exhaust port is formed downstream of the airflow that exchanges heat with the first heat dissipation section, and an intake port is formed upstream of the airflow. The opening area of ​​the exhaust port is smaller than the opening area of ​​the intake port. Display device.

2. In the display device according to claim 1, The projected area of ​​the exhaust port, which is the area obtained by projecting the opening region of the exhaust port onto a plane perpendicular to the direction of the airflow at the exhaust port, is smaller than the projected area of ​​the intake port, which is the area obtained by projecting the opening region of the intake port onto a plane perpendicular to the direction of the airflow at the intake port. Display device.

3. In the display device according to claim 1, The first heat dissipation unit is positioned relative to the display panel on the side closer to the direction of emission of the image light from the normal to the light emission surface of the display panel. Display device.

4. In the display device according to claim 1, The housing has a bottom plate, side walls, and a top plate. The aforementioned display device is A reflective mirror that reflects the light emitted by the aforementioned light source, A partition member is disposed between the reflective mirror and the bottom plate portion of the housing, Equipped with, Display device.

5. In the display device according to claim 1, The housing has a bottom plate, side walls, and a top plate. The exhaust port includes an opening formed in the upper plate portion of the housing adjacent to the first heat dissipation portion, and an opening formed in the side wall portion of the housing adjacent to the first heat dissipation portion. The air intake port includes an opening formed in the lower part of the first heat dissipation section of the bottom plate of the housing, Display device.

6. In the display device according to claim 1, The housing has a bottom plate, side walls, and a top plate. The exhaust port includes an opening formed in the upper plate portion of the housing in close proximity to the first heat dissipation portion. The air intake port includes an opening formed in the lower part of the first heat dissipation section of the bottom plate of the housing, Display device.

7. In the display device according to claim 1, The housing has a bottom plate, side walls, and a top plate. The first heat dissipation section has a structure that changes the direction of the airflow from a vertically upward direction to a direction toward the side wall, The exhaust port includes an opening formed in the side wall portion of the housing in close proximity to the first heat dissipation portion. The air intake port includes an opening formed in the lower part of the first heat dissipation section of the bottom plate of the housing, Display device.

8. In the display device according to claim 1, A heat conductive member connected to the display panel, A heat storage member connected to the heat conducting member, A second heat dissipation section connected to the heat storage member, Equipped with, Display device.

9. In the display device according to claim 8, The heat storage member is composed of a latent heat storage material. Display device.

10. In the display device according to claim 9, The aforementioned latent heat storage material is of the solid-solid transition type. Display device.

11. In the display device according to claim 8, The heat conductive member is not light-transmitting and is arranged in the area surrounding the display area of ​​the display panel. Display device.

12. In the display device according to claim 8, The heat conductive member has light transmittance and is arranged to cover the display area of ​​the display panel. Display device.

13. In the display device according to claim 11, It comprises one or more wires that are connected to the heat conductive member, arranged to cross the display area of ​​the display panel, and have thermal conductivity, Display device.

14. In the display device according to claim 12, It comprises one or more wires that are connected to the heat conductive member, arranged to cross the display area of ​​the display panel, and have thermal conductivity, Display device.

15. In the display device according to claim 13, The wiring is arranged to extend along a direction different from the direction perpendicular to the direction in which the R, G, and B regions constituting the pixels in the display panel are sequentially arranged. Display device.

16. In the display device according to claim 15, The wiring is arranged to extend along a direction parallel to the direction in which the regions R, G, and B are aligned. Display device.

17. In the display device according to claim 1, By reflecting the aforementioned image light with the projection member, the image generated by the display panel is made visible to the viewer as a virtual image. Display device.

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