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JP-7857515-B1 - Display device, display system, mobile unit, and display panel housing device

JP7857515B1JP 7857515 B1JP7857515 B1JP 7857515B1JP-7857515-B1

Abstract

The display device expands the viewing area. The display device includes a viewing window that makes the inside of the housing visible from the outside of the housing, and an optical system that can visualize an image based on a display image displayed by a display panel located inside the housing through the viewing window, wherein the first lower end of the viewing window is located in front of or behind the first upper end of the viewing window, or the first left end (38z) of the viewing window is located in front of or behind the first right end of the viewing window.

Inventors

  • 草深 薫
  • 島田 卓
  • 松田 和正

Assignees

  • 京セラ株式会社

Dates

Publication Date
20260512
Application Date
20251226
Priority Date
20241227

Claims (20)

  1. A display device, A display panel that displays the image, A housing in which the display panel is located on the inside, and which has a viewing section that makes light emitted from the inside of the housing visible from the outside of the housing, The system comprises an optical system capable of forming an image based on the aforementioned display image so that it can be viewed through the viewing unit, When the vertically upward direction in the operating state of the display device is defined as the upward direction, the direction opposite to the upward direction is defined as the downward direction, the direction in which the image based on the display image is displayed is defined as the forward direction, and the direction perpendicular to the upward direction, the downward direction, and the forward direction is defined as the left-right direction, the first lower end of the viewing section is located in front of or behind the first upper end of the viewing section, or the first left end of the viewing section is located in front of or behind the first right end of the viewing section . The optical system has a semi-transparent mirror, (i) The third lower end of the semi-transparent mirror is located in front of or behind the third upper end of the semi-transparent mirror, or (ii) The third left end of the semi-transparent mirror is located in front of or behind the third right end of the semi-transparent mirror. (i) The distance between the first lower end of the viewing section and the third lower end of the semi-transparent mirror is shorter than the distance between the first upper end of the viewing section and the third upper end of the semi-transparent mirror, or (ii) The distance between the first left end of the viewing section and the third left end of the semi-transparent mirror is shorter than the distance between the first right end of the viewing section and the third right end of the semi-transparent mirror , a display device.
  2. (i) The second lower end of the display panel is located in front of or behind the second upper end of the display panel, or (ii) the second left end of the display panel is located in front of or behind the second right end of the display panel, according to claim 1.
  3. (i) The distance between the first lower end of the viewing section and the second lower end of the display panel is equal to the distance between the first upper end of the viewing section and the second upper end of the display panel, or (ii) The distance between the first left end of the viewing section and the second left end of the display panel is equal to the distance between the first right end of the viewing section and the second right end of the display panel, the display device according to claim 1.
  4. (i) The distance between the first lower end of the viewing section and the second lower end of the display panel is shorter than the distance between the first upper end of the viewing section and the second upper end of the display panel, or (ii) The distance between the first left end of the viewing section and the second left end of the display panel is shorter than the distance between the first right end of the viewing section and the second right end of the display panel, according to claim 1.
  5. (i) The distance between the first lower end of the viewing section and the second lower end of the display panel is longer than the distance between the first upper end of the viewing section and the second upper end of the display panel, or (ii) The distance between the first left end of the viewing section and the second left end of the display panel is longer than the distance between the first right end of the viewing section and the second right end of the display panel, according to claim 1.
  6. The display device according to claim 1, wherein the second lower end of the display panel is located above or below the first lower end of the viewing section.
  7. The display device according to claim 1, wherein the direction of the second normal of the display panel is different from the direction of the first normal of the viewing section.
  8. The display device according to claim 1 , wherein the third lower end of the semi-transparent mirror is located above or below the first lower end of the viewing section.
  9. The display device according to claim 1 , wherein the direction of the third normal of the semi-transparent mirror is different from the direction of the first normal of the viewing section.
  10. (i) The distance between the third lower end of the semitransparent mirror and the second lower end of the display panel is equal to the distance between the third upper end of the semitransparent mirror and the second upper end of the display panel, or (ii) The distance between the third left end of the semitransparent mirror and the second left end of the display panel is equal to the distance between the third right end of the semitransparent mirror and the second right end of the display panel, the display device according to claim 1 .
  11. (i) The distance between the third lower end of the semitransparent mirror and the second lower end of the display panel is shorter than the distance between the third upper end of the semitransparent mirror and the second upper end of the display panel, or (ii) The distance between the third left end of the semitransparent mirror and the second left end of the display panel is shorter than the distance between the third right end of the semitransparent mirror and the second right end of the display panel, as described in claim 1 .
  12. (i) The distance between the third lower end of the semitransparent mirror and the second lower end of the display panel is longer than the distance between the third upper end of the semitransparent mirror and the second upper end of the display panel, or (ii) The distance between the third left end of the semitransparent mirror and the second left end of the display panel is longer than the distance between the third right end of the semitransparent mirror and the second right end of the display panel, as described in claim 1 .
  13. The display device according to claim 1 , wherein the third lower end of the semi-transparent mirror is located above or below the second lower end of the display panel.
  14. The display device according to claim 1 , wherein the direction of the third normal of the semitransparent mirror is the same as the direction of the second normal of the display panel.
  15. The display device according to claim 1 , wherein the direction of the third normal of the semitransparent mirror is different from the direction of the second normal of the display panel.
  16. The display device is located above the dashboard of the mobile vehicle. The display device according to claim 1, wherein the first lower end of the viewing section is located rearward relative to the first upper end of the viewing section.
  17. The display device according to claim 16 , wherein the second lower end of the display panel is located rearward relative to the second upper end of the display panel.
  18. The optical system has a semi-transparent mirror, The display device according to claim 16 , wherein the third lower end of the semi-transparent mirror is located in front of the third upper end of the semi-transparent mirror.
  19. The display device according to claim 18 , wherein the second upper end of the display panel is located above the first upper end of the viewing section.
  20. Dashboard and The system comprises a display device according to claim 1, located above the dashboard, The second lower end of the display panel is a movable body located rearward relative to the second upper end of the display panel.

Description

This disclosure relates to a display device for displaying images, and a mobile device equipped with such a display device. Furthermore, this disclosure relates to display devices, display systems, and mobile devices. Conventionally, a display device, such as the one described in Patent Document 1, is known. Furthermore, various display systems have been proposed that are mounted in vehicles and allow the driver to view images of the area behind the vehicle (see, for example, Patent Document 1). Japanese Patent Publication No. 2022-63533Japanese Patent Publication No. 2010-208372 A display device according to one aspect of the present disclosure comprises: a display panel for displaying a display image; a housing in which the display panel is located inside; a viewing section located in front of the display panel in the housing when the direction in which the display panel displays the display image is considered as the forward direction, and which makes the inside of the housing visible from the outside of the housing; and an optical system capable of forming an image based on the display image so as to be visible through the viewing section, wherein when the vertically upward direction in the operating state of the display device is considered as the upward direction, the direction opposite to the upward direction is considered as the downward direction, and the direction perpendicular to the upward direction, the downward direction, and the forward direction is considered as the left-right direction, the first lower end of the viewing section is located in front of or behind the first upper end of the viewing section, or the first left end of the viewing section is located in front of or behind the first right end of the viewing section. This diagram schematically shows the configuration of the display device related to this disclosure.This is a cross-sectional view showing an example of a specific configuration of the display device related to this disclosure.This is a schematic diagram showing an example of an edge-lit backlight.This is a schematic diagram showing an example of a direct-lit backlight system.This is a cross-sectional view showing an example of the main components of the display device related to this disclosure.This is a cross-sectional view showing an example of the main components of the display device relating to this disclosure, different from that shown in Figure 5.This is a cross-sectional view showing an example of the main components of the display device relating to this disclosure, different from those shown in Figures 5 and 6.This figure shows an example of an image forming apparatus equipped with a display device according to this disclosure.This figure shows an example of the interior of a mobile vehicle to which an imaging device equipped with the display device according to this disclosure is applied.This figure shows an example of the arrangement of components in a display device installed on a mobile device.This figure illustrates variations in the arrangement of each component in the display device according to this disclosure.This figure illustrates variations in the arrangement of each component in the display device according to this disclosure.This figure illustrates variations in the arrangement of each component in the display device according to this disclosure.This figure illustrates variations in the arrangement of each component in the display device according to this disclosure.This figure illustrates variations in the arrangement of each component in the display device according to this disclosure.This figure illustrates variations in the arrangement of each component in the display device according to this disclosure.This figure illustrates variations in the arrangement of each component in the display device according to this disclosure.This figure shows an example of how the display device described in this disclosure is applied to a digital rearview mirror.This figure shows an example of how the display device described in this disclosure is applied to CID.This figure shows an example of how the display device described in this disclosure is applied to a digital side mirror.This figure shows an example of an optical path when the display device according to this disclosure is applied to a digital rearview mirror.This figure shows an example of an optical path when applied to the display device CID related to this disclosure.This figure shows an example of an optical path when the display device according to this disclosure is applied to a digital side mirror.This figure illustrates variations in the shape of the housing of the display device according to this disclosure.This figure shows an example of a vehicle equipped with a display system.This diagram schematically shows an example of the configuration of a display device.This is a schematic diagram illustrating the configuration of the display system.This diagram schematically shows an example of th