Device and method for modifying video image of display apparatus

Abstract

A device and method for modifying a video image of a display apparatus method, for efficiently modifying a size and aspect ratio of a video image, is disclosed. The device includes an on-screen display (OSD) generator providing an on-screen display (OSD) on a display for programming a size and an aspect ratio of a video image, and a video processor modifying a displayed video image in accordance with the size and aspect ratio of the displayed video image programmed by a user. Herein, the video processor modifies the video image from a center point of the video image.

What is claimed is: 
     
       1. A device for modifying a video image of a display apparatus, comprising:
 a demultiplexer dividing received broadcast signals into a video signal, an audio signal, and supplementary information; 
 a video processor converting the video signal received from the demultiplexer into a displayable signal; 
 a microcomputer controlling the video processor so as to adjust a size and aspect ratio of a displayed video image based on the supplementary information received from the demultiplexer; and 
 a data processor providing a video image modifying menu for allowing a user to remotely change the size and aspect ratio for a currently  the displayed video image, 
 wherein the displayed video image corresponds to the displayable signal, 
 wherein an arbitrary length of the displayed video image is input and an arbitrary width of the displayed video image is input, 
 wherein each of the length and width of the video image is arbitrarily changed based on at least one control key of a remote controller, 
 wherein the arbitrarily input length and width of the video image include values different than a normal aspect ratio of 4:3 or a wide aspect ratio of 16:9, and 
 wherein the at least one control key of the remote controller changes the length and width of the video image incrementally step-by-step. 
 
     
     
       2. The device according to  claim 1 , wherein the microcomputer adjusts the size and aspect ratio of a the displayed video image based on a genre information included in broadcase programs. 
     
     
       3. The device according to  claim 1 , further comprising a memory storing a video size value and a video aspect ratio value corresponding to each genre of broadcast programs. 
     
     
       4. A device for modifying a video image of a display apparatus, comprising:
 a demultiplexer dividing received broadcast signals into a video signal, an audio signal, and supplementary information; 
 a video processor converting the video signal received from the demultiplexer into a displayable signal; 
 a microcomputer controlling the video processor so as to adjust a size and aspect ratio of a displayed video image based on the supplementary information received from the demultiplexer; and 
 a data processor providing a video image modifying menu for programming and storing a video size and a video aspect ratio for each genre of broadcast programs, 
 wherein the video image modifying menu is further configured to allow a user to remotely change arbitrarily each of a length and a width of a currently displayed video image, 
 wherein each of the length and width of the video image is arbitrarily changed based on at least one control key of a remote controller, 
 wherein the arbitrarily input length and width of the video image include values different than a normal aspect ratio of 4:3 or a wide aspect ratio of 16:9, and 
 wherein the at least one control key of the remote controller changes the length and width of the video image incrementally step-by-step. 
 
     
     
       5. The device according to  claim 4 , wherein the video image modifying menu includes an item for programming a position of subtitles. 
     
     
       6. The device according to  claim 4 , wherein the video image modifying menu includes an item for changing a color of upper and lower portions of the displayed video image initially shown as a black screen. 
     
     
       7. A method for modifying a video image of a display apparatus, comprising:
 dividing received broadcast signals into a video signal, an audio signal, and supplementary information; 
 converting the video signal for adjusting a size and aspect ratio of a displayed video image based on a genre information of broadcast programs included in the supplementary information; and 
 providing a video image modifying menu for allowing a user to remotely change the size and aspect ratio for a currently displayed video image arbitrarily each of a length and a width of a currently displayed video image, 
 wherein each of the length and width of the video image is arbitrarily changed based on at least one control key of a remote controller, 
 wherein the arbitrarily input length and width of the video image include values different than a normal aspect ratio of 4:3 or a wide aspect ratio of 16:9, and 
 wherein the at least one control key of the remote controller changes the length and width of the video image incrementally step-by-step. 
 
     
     
       8. A method for modifying a video image of a display apparatus, comprising:
 dividing received broadcast signals into a video signal, an audio signal, and supplementary information; 
 converting the video signal for adjusting a size and aspect ratio of a displayed video image based on a genre information of broadcast programs included in the supplementary information; and 
 displaying a video image modifying menu for programming and storing a video size and a video aspect ratio for each genre of broadcast programs, 
 wherein the video image modifying menu is further configured to allow a user to remotely change arbitrarily each of a length and a width of a currently displayed video image, 
 wherein each of the length and width of the video image is arbitrarily changed based on at least one control key of a remote controller, 
 wherein the arbitrarily input length and width of the video image include values different than a normal aspect ratio of 4:3 or a wide aspect ratio of 16:9, and 
 wherein the at least one control key of the remote controller changps the length and width of the video image incrementally step-by-step. 
 
     
     
       9. The method according to  claim 7 , further comprising programming and storing a video size and a video aspect ratio for each genre of broadcast programs. 
     
     
       10. The device according to claim 1, wherein the microcomputer controls the video processor so as to adjust the size of the displayed video image starting from a center point of the displayed video image. 
     
     
       11. The device according to claim 1, wherein a size or shape of the video image modifying menu remains unchanged when the size and aspect ratio of the displayed video image is adjusted according to the video image modifying menu. 
     
     
       12. The device according to claim 1, wherein the video image modifying menu is overlaid on the displayed video image. 
     
     
       13. The device according to claim 12, wherein in response to the video image modifying menu being overlaid on the displayed video image, changes in the size of the displayed video image can be visually verified while the size of video image is changed. 
     
     
       14. The device according to claim 4, further comprising:
 storing, via a memory, a video size value and a video aspect ratio value corresponding to each genre of broadcast programs.   
     
     
       15. The device according to claim 4, wherein the size of the displayed video image is adjusted starting from a center point of the displayed video image. 
     
     
       16. The device according to claim 4, wherein a size or shape of the video image modifying menu remains unchanged when the size and aspect ratio of the displayed video image is adjusted. 
     
     
       17. The device according to claim 4, wherein the video image modifying menu is overlaid on the displayed video image. 
     
     
       18. The device according to claim 17, wherein in response to the video image modifying menu being overlaid on the displayed video image, changes in the size of the displayed video image can be visually verified while the size of video image is changed. 
     
     
       19. The device according to claim 1, wherein the width or length of the video image is increased by 1 when the at least one control key is selected once, and the width or length of the video image is decreased by 1 when the at least one control key is selected once. 
     
     
       20. The device according to claim 4, wherein the width or length of the video image is increased by 1 when the at least one control key is selected once, and the width or length of the video image is decreased by 1 when the at least one control key is selected once. 
     
     
       21. The method according to claim 7, wherein the width or length of the video image is increased by 1 when the at least one control key is selected once, and the width or length of the video image is decreased by 1 when the at least one control key is selected once. 
     
     
       22. The method according to claim 8, wherein the width or length of the video image is increased by 1 when the at least one control key is selected once, and the width or length of the video image is decreased by 1 when the at least one control key is selected once.