Image display apparatus
First Claim
1. An image display apparatus including an input unit, a computer body and a display unit, wherein said computer body comprises addition means for preparing a control signal Sc on the basis of an control instruction inputted by said input unit for adjusting a display picture of said display unit and for adding said control signal to a video signal R, G or B or a synchronizing signal Hs or Vs produced separately for driving said display unit to be produced to said display unit, and said display unit comprises separation means for separating said added control signal from said video signal or said synchronizing signal produced by said addition means and display control means for producing an adjustment signal on the basis of said control signal produced from said separation means to adjust display drive means in said display unit.
1 Assignment
0 Petitions
Accused Products
Abstract
An image display apparatus capable of adjusting a display picture by an input unit through a computer body is disclosed. When the user inputs a control instruction for adjusting the display picture of the display unit by the input unit connected to the computer body, a control signal addition circuit prepares a control signal Sc corresponding to the control instruction and adds the control signal to a video signal R, G or B or a synchronizing signal Hs or Vs produced by a display control circuit during a vertical retrace period. A control signal separation circuit separates the added control signal Sc from the video signal R, G or B or the synchronizing signal Hs or Vs produced by the control signal addition circuit. A display control circuit produces adjustment signals Sa and Sb on the basis of the control signal from the control signal separation circuit to adjust a video circuit and a deflection circuit. Thus, the user can adjust the display picture by the input unit near at hand without extending the hands to adjustment switches of the display unit.
4 Citations
15 Claims
- 1. An image display apparatus including an input unit, a computer body and a display unit, wherein said computer body comprises addition means for preparing a control signal Sc on the basis of an control instruction inputted by said input unit for adjusting a display picture of said display unit and for adding said control signal to a video signal R, G or B or a synchronizing signal Hs or Vs produced separately for driving said display unit to be produced to said display unit, and said display unit comprises separation means for separating said added control signal from said video signal or said synchronizing signal produced by said addition means and display control means for producing an adjustment signal on the basis of said control signal produced from said separation means to adjust display drive means in said display unit.
- 6. An image display apparatus including an input unit, a computer body and a display unit, wherein said computer body comprises preparation means for preparing a control signal Sc on the basis of an control instruction inputted by said input unit for adjusting a display picture of said display unit to produce said control signal to said display unit, and said display unit comprises control means for producing an adjustment signal on the basis of said control signal produced by said preparation means to adjust display drive means in said display unit.
- 8. An image display apparatus including an input unit, a computer body and a display unit, wherein said computer body comprises display processing means for preparing a control signal Sc on the basis of an control instruction inputted by said input unit for adjusting a display picture of said display unit to produce said control signal to said display unit together with image data produced separately for displaying an image in said display unit, and said display unit comprises control means for preparing video signals R, G and B and synchronizing signals Hs and Vs on the basis of said image data produced by said display processing means and for producing an adjustment signal on the basis of said control signal produced by said display processing means to adjust display drive means in said display unit.
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10. An image display apparatus including an input unit, a computer body and a display unit, wherein said computer body comprises modulation means for preparing a control signal Sc on the basis of an control instruction inputted by said input unit for adjusting a display picture of said display unit and modulating said control signal to add said control signal to an AC power supply PL, and said display unit comprises demodulation means for separating said added control signal Sc from said AC power supply PL to demodulate said control signal and control means for producing an adjustment signal on the basis of said control signal Sc produced by said demodulation means to adjust display drive means, in said display unit.
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11. An image display apparatus including a second input unit, a computer body and a display unit, wherein said computer body and said display unit are supplied with a part or all of instructions inputted by said second input unit, and said display unit comprises preparation means for preparing a control signal Sc on the basis of said control instruction to produce it when an instruction inputted by said input unit is a control instruction for adjusting a display picture of said display unit and control means for producing an—
- adjustment signal on the basis of said control signal Sc produced by said preparation means to adjust display drive means in said display unit.
- View Dependent Claims (12, 13, 15)
Specification
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- Resources
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Current AssigneeMondis Technology Limited
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Original AssigneeHitachi, Ltd.
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InventorsArai, Ikuya, Kitou, Kouji, Sano, Yuji
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Granted Patent
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Time in Patent OfficeDays
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Field of Search
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US Class Current345/204
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CPC Class CodesG06F 3/14 Digital output to display d...G09G 1/165 Details of a display termin...G09G 1/167 Details of the interface to...G09G 2320/08 Arrangements within a displ...G09G 2330/021 Power management, e.g. powe...G09G 2340/02 Handling of images in compr...G09G 2340/125 wherein one of the images i...G09G 2360/18 Use of a frame buffer in a ...G09G 2370/04 Exchange of auxiliary data,...G09G 2370/045 using multiple communicatio...G09G 5/006 Details of the interface to...
