Sliding accommodation type liquid crystal display device

• US 5,173,686 A
• Filed: 12/14/1990
• Issued: 12/22/1992
• Est. Priority Date: 12/15/1989
• Status: Expired due to Term

• Current Assignee: Clarion Co., Ltd. (Faurecia SA)
• Original Assignee: Clarion Co., Ltd. (Faurecia SA)
• Inventors: Fujihara, Toshiharu
• Primary Examiner(s): Oberley, Alvin E.
• Assistant Examiner(s): Mengistu, Amare
• Application Number:
  US07/627,651
• Time in Patent Office: 739 Days
• Field of Search: 340/700, 340/784, 340/461, 364/708, 364/800, 361/380, 361/390, 361/391, 312/208, 312/323, 248/917, 248/923, 358/254, 200/52 A, 200/61.45 R, 200/61.46, 200/61.7, 200/61.62, 200/61.58 R, 200/58
• US Class Current: 345/87
• CPC Class Codes: G09F 9/35 being liquid crystals G09F9/302 takes precedence; liquid crystal materials C09K19/00; liquid crystal panels comprising a number of electrodes in a single cell per se G02F1/13
• CPC Class Codes: Y10S 248/92 Angular and linear video display screen support adjustment
• CPC Class Codes: Y10S 345/905 Display device with housing structure

Abstract

An apparatus has a liquid crystal display unit, which can be drawn out/accommodated by sliding with respect to a main body of the apparatus, and rotated in the state, where it is drawn out from the apparatus, in which apparatus operation is simplified by correlating switching on/off of the liquid crystal display and accommodating operation of the liquid crystal display unit with the rotation of the liquid crystal display unit.

Claims

1. A sliding accommodation type liquid crystal display device comprising:

a main body of an apparatus;

a liquid crystal display unit supported slidably for movement between a first position where it is accommodated within said main body of the apparatus and a second where it is drawn out from said main body, and supported rotatably at a backside end thereof so as to be rotatable downward and by some amount upward with respect to said main body when in said second position where it is drawn out from said main body;

excessive rotation detecting means for generating a detection signal when said unit is rotated by some amount upward when in said second position where it is drawn out from said main body;

driving means for effecting sliding movement of said liquid crystal display unit from said second position to said first position with respect to said main body of the apparatus; and

control means for causing said drive means to effect movement of said liquid crystal display unit from said second position to said first position with respect to said main body of the apparatus in response to said detection signal from said excessive rotation detecting means.

2. A device of claim 1, wherein said main body includes first and second spaced and parallel guide rods, and wherein said drive means includes first and second holding blocks each slidably supported on a respective one of said first and second guide rods, and first and second slide parts respectively fixedly secured to said first and second holding blocks, said slide parts supporting said liquid crystal display unit for said rotatable movement at said backside end thereof.

3. A device of claim 2, including a base plate extending between and fixedly secured to said slide parts, and wherein said drive means includes said first guide rod having a gear rack thereon, includes an electric motor and means supporting said motor on said base plate, and includes gear train means drivingly coupling said motor to said gear rack.

4. A device of claim 3, wherein said drive means includes first and second limit switches provided at spaced locations on said main body, and wherein said first holding block has a protrusion which respectively actuates said first and second limit switches when said liquid crystal display unit is respectively in said first and second positions, and means responsive to actuation of either of said first and second limit switches when said electric motor is running for stopping said electric motor.

5. A device of claim 4, including a first connector mounted on said base plate, a second connector mounted on said main body, and a flexible member extending between and coupled to each of said connectors.

6. A device of claim 1, wherein said backside end of said liquid crystal display unit is spaced outwardly from said main body when said liquid crystal display unit is in said second position;

including a dust shutter pivotally supported on said liquid crystal display unit at said backside end thereof and extending rearwardly into an accommodation opening which is provided in said main body of said apparatus and which receives said display unit when said display unit is in said first position; and

including resilient means yieldably urging pivotal movement of said dust shutter in an upward direction within said accommodation opening so that a portion of said dust shutter slidably engages a wall portion of said main body defining a top surface of said accommodation opening.

7. A device of claim 1, wherein said excessive rotation detecting means includes a rotation detecting switch mounted on said liquid crystal display unit and includes a limiting portion held against rotation with said display unit relative to said main body and cooperable with said rotation detecting switch so that said switch is actuated when said display unit is in one of said first and second positions and is deactuated when said display unit is in the other of said first and second positions.