Computer graphics processing and selective visual display system – Display driving control circuitry – Controlling the condition of display elements
Reexamination Certificate
1998-03-13
2001-07-03
Bayerl, Raymond J. (Department: 2773)
Computer graphics processing and selective visual display system
Display driving control circuitry
Controlling the condition of display elements
C345S215000
Reexamination Certificate
active
06256027
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates generally to an on-screen display of a video display appliance such as a television receiver, monitor, computer, etc. In particular, the present invention relates to an on-screen display (OSD) menu implementing device and method for a video display appliance which can implement on a specified position of a display screen an OSD menu representing a control state of a selected function of the video display appliance, thereby enabling a user to conveniently adjust the function of the video display appliance.
2. Description of the Related Art
A conventional display device of a video display appliance, as shown in
FIG. 1
, includes a video input section
1
for inputting a video signal of red (R), green (G), and blue (B), a pre-amplifier
2
for pre-amplifying the RGB video signal inputted through the video input section
1
with a predetermined level, a video output section
3
for outputting the video signal amplified by the pre-amplifier
2
, and a display section
4
for displaying the video signal outputted from the video output section
3
on a display screen.
The operation of the conventional display device of a video display appliance as constructed above will be explained.
The RGB video signal inputted through the video input section
1
is amplified with a predetermined amplification factor by the pre-amplifier
2
, and the amplified RGB video signal is inputted to the video output section
3
.
The video output section
3
processes and outputs the amplified RGB video signal to the display section
4
, so that the video signal is displayed on the display screen.
However, the conventional display device has the drawback that since it merely displays the video signal on the display screen without OSD function, a user cannot identify the control state of the selected function of the video display appliance even if the user controls the function thereof through key input means.
SUMMARY OF THE INVENTION
It is an object of the present invention to solve the problems involved in the related art, and to provide an on-screen display menu implementing device and method for a video display appliance which can implement on a specified position of a display screen an OSD menu representing the control state of a selected function such as sound volume, brightness, contrast, vertical size, horizontal size, etc., so that a user can visually recognize their control state.
In one aspect of the present invention, there is provided an on-screen display (OSD) menu implementing device for a video display appliance for displaying a video signal provided from a personal computer or video input means, the device comprising:
Key input means for selectively inputting a function control signal for selecting and controlling a function of the appliance;
control means for discriminating horizontal and vertical sync signals inputted through the personal computer or the video input means, and outputting a control signal and control data for implementing the OSD menu in accordance with the function control signal inputted from the key input means;
OSD generating means for receiving the control signal and the control data from the control means, and implementing the OSD menu representing a control state of the selected function of the appliance is implemented on a display screen, the OSD menu including unchangeable or fixed constituent elements and variable or moving constituent elements;
digital-to analog conversion means for converting the control signal and the control data outputted from the control means into analog signals to display the converted analog signals on the display screen;
storage means for storing therein the control data provided from the control means; and
pre-amplifying means for pre-amplifying with a predetermined amplification factor the video signal inputted through the video input means and the OSD video signal inputted from the OSD generating means.
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OSD Operation of Q Vision 210 Color Monitor. See Chapter 3 ‘User's Guide’, Compaq Computer Corporation, Mar./Oct. 1995.
Han Chang Woo
Jeong Seok Hwa
Bayerl Raymond J.
LG Electronics Inc.
Nguyen Cao H.
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