Display unit for displaying an image based on a video signal received from a personal computer which is connected to an input device

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.

1 . A display apparatus which displays an image based on a video signal, comprising:
 a memory which stores data regarding said display apparatus; and   a receiver connected to said memory and an interface, said receiver receives a control signal from an external computer via said interface, wherein said control signal includes an instruction for reading out said data from said memory and is generated based on software for operating said external computer, said external computer being separate from said display apparatus,   wherein said display apparatus displays an image based on a video signal received from said external computer via said interface.   
   
   
       2 . A display apparatus according to  claim 1 , wherein a size and a location of said image are managed in accordance with said data regarding said display apparatus. 
   
   
       3 . A display apparatus according to  claim 2 , wherein said size and said location of said image are controlled in accordance with said data read out from said memory. 
   
   
       4 . A display apparatus according to  claim 1 , wherein said memory is an EEPROM.