Liquid crystal television receiver

• US 4,809,078 A
• Filed: 09/27/1984
• Issued: 02/28/1989
• Est. Priority Date: 10/05/1983
• Status: Expired due to Fees

• Current Assignee: Casio Computer Company Limited
• Original Assignee: Casio Computer Company Limited
• Inventors: Hirata, Kazumasa, Mori, Shuri, Yabe, Nobol, Yamauchi, Ken
• Primary Examiner(s): HARVEY, DAVID E
• Assistant Examiner(s): HARVEY, DAVID E
• Application Number:
  US06/555,509
• Time in Patent Office: 1,615 Days
• Field of Search: 358/56, 358/59, 358/189, 358/230, 358/236, 358/239, 358/240, 358/241, 362/84, 362/135, 340/781, 340/784, 350/345, 36/705, 273/1 GC
• US Class Current: 348/794
• CPC Class Codes: H04N 3/127 using liquid crystals
• CPC Class Codes: H04N 5/44 Receiver circuitry for the reception of television signals according to analogue transmission standards H04N5/14 takes precedence
• CPC Class Codes: H04N 5/64 Constructional details of receivers, e.g. cabinets or dust covers furniture aspects of television cabinets A47B81/06
• CPC Class Codes: H04N 5/655 Construction or mounting of chassis, e.g. for varying the elevation of the tube
• CPC Class Codes: H04N 9/30 using solid-state colour display devices

Abstract

A liquid crystal television receiver has a main frame including a reflecting plate and a hood member with a liquid crystal display panel and an electroluminescence panel. The reflecting plate is disposed so as to slant with respect to the liquid crystal display panel, and provides a display of a picture from the display panel in a reflecting manner. The electroluminescence panel is slidably provided in the hood member. For illuminating the liquid crystal display panel, the electroluminescence panel is slid above the liquid crystal display panel.

Claims

1. A liquid crystal television receiver comprising:

a reflecting member for reflecting light applied thereto;

a hood member for covering an upper portion of said reflecting member;

a transparent liquid crystal display which is provided in said hood member, said display panel being movable and slantable with respect to said reflecting member and projecting an image on said reflecting member;

receiving means for receiving television signals;

drive means, which is connected to said receiving means, for driving said transparent liquid crystal display panel in response to a signal from said receiving means;

an illuminating member for illuminating said liquid crystal display panel; and

holding means provided in said hood member for selectively holding said illuminating member at a predetermined location adjacent a surface of said liquid crystal display panel so as to light said liquid crystal display panel.

2. The liquid crystal television receiver according to claim 1, in which said transparent liquid crystal display panel is a transparent liquid crystal display panel of the color dot matrix type for displaying a color picture through primary color filters.

3. The liquid crystal television receiver according to claim 1, in which said hood member is rectangular in shape, and

said holding means has guide rails provided on inner surfaces of two opposite side walls of said hood member, whereby said illuminating member may retract from said predetermined location to another location.

4. The liquid crystal television receiver according to claim 3, in which said guide holding means has guide grooves formed in the two opposite side walls of said hood member, and said illuminating member has knobs projecting outward through said grooves.

5. The liquid crystal television receiver according to claim 1, in which said holding means has an opening formed in a side wall of said hood member, and guide rails are provided on the an upper plate of said hood member for guiding said illuminating member inserted through said opening to the predetermined location.

6. The liquid crystal television receiver according to claim 1, in which said liquid crystal display panel is disposed such that said reflecting member provides a non-inverted image.

7. The liquid crystal television receiver according to claim 1, further comprising a supporting shaft for supporting said hood member and said reflecting member so that said hood and reflecting members are rotatably coupled with each other.

8. The liquid crystal television receiver according to claim 7, further comprising means for automatically rotating said hood member relative to said reflecting member about said supporting shaft at a predetermined angle, to thereby move said members from their closed position to the opened position.

9. The liquid crystal television receiver according to claim 7, further comprising:

means for automatically rotating said hood member relative to said reflecting member about said supporting shaft at a predetermined angle, to thereby move said members from their closed position to the opened position; and

braking means for controlling the rotation speed of said hood member so as to prevent said hood member from rapidly rotating.

10. The liquid crystal television receiver according to claim 1, in which said reflecting member includes said receiving means, and said hood member includes said drive means.

11. The liquid crystal television receiver according to claim 1, in which said reflecting member includes a base and a surface coated mirror mounted to said base.

12. The liquid crystal television receiver according to claim 1, further comprising:

second drive means provided in said reflecting member, for driving said illuminating member;

a first electrode section provided in said hood member and connected to said second drive means; and

a second electrode section, mounted to said illuminating member so as to contact said first electrode section when said illuminating member is located at the predetermined location, for transferring, at this time, electric power to said illuminating member.

13. The liquid crystal television receiver according to claim 1, in which said transparent liquid crystal display panel is a dot matrix type display panel.

14. The liquid crystal television receiver according to claim 1, wherein said illuminating member is a substantially planar illuminating member.

15. The liquid crystal television receiver according to claim 14, wherein said planar illuminating member comprises an electroluminescence panel.

16. The liquid crystal television receiver according to claim 1, wherein said illuminating member comprises an electroluminescence panel.

17. The liquid crystal television receiver according to claim 1, wherein said holding means holds said illuminating member at a predetermined location adjacent a surface of said liquid crystal display panel which is opposite to that surface of said liquid crystal display panel facing said reflecting member.

18. An improved lighting device for an electronic device having a body comprising a case provided with an electric circuit therein, a liquid crystal display panel provided on the case and a mirror for watching an image on the liquid crystal display panel by the light passing through the display panel, wherein the improvement comprising:

an electroluminescence device detachably provided in the case;

first means for supplying a current from the electric circuit to the electroluminescence device;

second means for positioning the electroluminescence device at a position adjacent the liquid crystal display panel so as to light the panel said liquid crystal display panel being hinged on the case at one end thereof and held in a slanted position.

19. The lighting device according to claim 18, further comprising third means for receiving the electroluminescence device in the case.

20. The lighting device according to claim 19, wherein the electroluminescence device is attached to the upper surface of the liquid crystal display panel.

21. The lighting device according to claim 19, wherein the electroluminescence device is positioned in a position adjacent the underside of the liquid crystal display panel disposed in the horizontal position.

22. An electronic device having an improved lighting device, said device comprising:

a first member containing receiving means for receiving a radio wave and outputting signals corresponding to the received wave, and having reflecting means provided on a surface of the first member;

a second member having a liquid crystal (LC) display panel member thereon, driving means for receiving the output signal of said receiving means and for driving said LC panel member, said second member being hingedly connected to said first member, and said second member holding said LC panel member so that said LC panel member is inclined to said reflecting means) for projecting a view image onto said reflecting means; and

an illuminating member detachably coupled to said second member for illuminating said LC panel member and for covering one surface of said LC panel member when said illuminating member is coupled to said second member.

23. An electronic device having an improved lighting device, said device comprising:

a first member containing receiving means for receiving a radio wave and outputting signals corresponding to the received wave, and having reflecting means provided on a surface of the first member;

a second member having a liquid crystal (LC) display panel member, driving means for receiving the output signal of said receiving means and for driving said LC panel member, said second member being hingedly connected to said first member so as to be inclined at an angle to said first member for projecting a display image generated by said LC display panel member onto said reflecting means; and

an illuminating member detachably coupled to said second member, said illuminating member when coupled to said second member being held on one surface of said LC panel member for illuminating said LC panel member and being removable from said second member when an external light is used to illuminate said LC panel member.