Liquid crystal display device for vehicle use having a screen with a polarization member

• US 8,587,749 B2
• Filed: 12/04/2008
• Issued: 11/19/2013
• Est. Priority Date: 01/09/2008
• Status: Expired due to Fees

• Current Assignee: Toyota Boshoku Kabushiki Kaisha
• Original Assignee: Toyota Boshoku Kabushiki Kaisha
• Inventors: Kuno, Satoru
• Primary Examiner(s): CALEY, MICHAEL H
• Application Number:
  US12/327,994
• Publication Number:
  US 20090174847A1
• Time in Patent Office: 1,811 Days
• Field of Search: 349/96, 349/58, 359/609, 359/893
• US Class Current: 349/96
• CPC Class Codes: B60N 2/809 vertically slidable
• CPC Class Codes: B60N 2/838 Tiltable
• CPC Class Codes: B60N 2/879 with additional features not related to head-rest positioning, e.g. heating or cooling devices or loudspeakers
• CPC Class Codes: B60R 11/0235 of flat type, e.g. LCD
• CPC Class Codes: B60R 2011/0017 Head-rests
• CPC Class Codes: B60R 2011/0059 using clips, clamps, straps or the like

Abstract

The present invention can include a display device for use in a vehicle having a screen with a polarizing member disposed in the front of a display surface of a liquid crystal display, the polarizing member having a light transmittance of less than 50%, a surface of the screen is coplanar with a surface of the cover member. Also, the polarizing member is not provided on the display surface of the liquid crystal display, and when the liquid crystal display is not used, the screen is inconspicuous, and when the liquid crystal display is used, information can be viewed from the screen.

Claims

1. A liquid crystal display device for vehicle use, which is mounted in place in a vehicle room, comprising:

a liquid crystal display; and

front and rear covers covering a periphery of the liquid crystal display, wherein

a screen having a polarizer is disposed in front of a display surface of and extending beyond an upper display-side outer edge portion and a lower display-side outer edge portion of the liquid crystal display, the polarizer having a light transmittance of less than 50%,

a surface of the screen is coplanar with a surface of the rear cover such that the rear cover encloses and partially joins the screen, the polarizer is not provided on the display surface of the liquid crystal display,

an anti-see-through portion is disposed at an outer circumferential edge portion on an inner back side of the screen facing the liquid crystal display such that an inner edge of the anti-see-through portion overlaps the upper and lower display side outer edge portions of the liquid crystal display,

a distance between the upper display-side outer edge portion of the liquid crystal display and the screen is greater than a distance between the lower display-side outer edge portion of the liquid crystal display and the screen; and

when the liquid crystal display is not used, the screen is inconspicuous, and when the liquid crystal display is used, various kinds of display information can be viewed via the screen.

2. The liquid crystal display device for vehicle use according to claim 1, wherein the screen is a sheet-like member having a shape retaining property and has a deflection function.

3. The liquid crystal display device for vehicle use according to claim 1, wherein the screen has transparent protective layers disposed on two sides of a polarizing film and an antireflective layer at a surface side of the screen.

4. The liquid crystal display device for vehicle use according to claim 1, wherein the screen is formed in one of a two-dimensionally curved shape and a three-dimensionally curved shape in accordance with a surface profile of the rear cover.

5. The liquid crystal display device for vehicle use according to claim 1, wherein the screen has an integral display region in a central portion, and the anti-see-through portion encloses a whole circumference of the display region.

6. The liquid crystal display device for vehicle use according to claim 5, wherein an area of the display region is approximately the same as an area of the display surface of the liquid crystal display.

7. The liquid crystal display device for vehicle use according to claim 6, wherein the anti-see-through portion is provided so as to extend in a horizontal direction at a vertically lower part of the screen, and the display region is divided into a display region for picture display and a display region for character information display.

8. The liquid crystal display device for vehicle use according to claim 1, wherein the screen has a curved surface that extends to first and second portions of the rear cover.

9. The liquid crystal display device for vehicle use according to claim 1, wherein the screen is a three-dimensionally curved shape in which the center of the screen is curved to a surface side in accordance with a streamline of the rear cover.

10. The liquid crystal display device for vehicle use according to claim 1, wherein an antireflection layer is provided on the surface of the screen.

11. The liquid crystal display device for vehicle use according to claim 1, wherein the anti-see-through portion is provided to enclose the liquid crystal display.