Image control method and apparatus for digital monitor
AssigneeLG.Philips LCD Co., Ltd.
InventorsJun Hee Kim, Han Sang Lee, Hee Gyung Yoon
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Abstract
An image control method and apparatus for a digital monitor that is capable of controlling a contrast and a color temperature in the digital monitor is disclosed. In the method, an offset control signal is produced. A digital input signal is added to the offset control signal. An added value of the digital input signal and the offset control signal is limited within a desired reference value. Accordingly, a contrast and a color temperature of the digital input signal can be controlled in the digital monitor.
Claims9
A method of controlling an image in a digital monitor displaying a digital input signal applied from a graphics card, said method comprising the steps of:
- producing an offset control signal;
- adding the digital input signal to the offset control signal to produce an added signal;
- and
- limiting a value of the added signal to be not greater than a desired reference value.
A method of controlling an image in a digital monitor displaying a digital input signal applied from a graphic card, said method comprising the steps of:
- producing an contrast control signal;
- multiplying the digital input signal by the contrast control signal;
- and
- limiting a multiplied value of the digital input signal and the contrast control signal within a desired reference value.
A method of controlling an image in a digital monitor displaying a digital input signal applied from a graphic card, said method comprising the steps of:
- producing an offset control signal and a contrast control signal;
- adding the digital input signal to the offset control signal;
- multiplying the digital input signal by the contrast control signal;
- limiting an added value of the digital input signal and the offset control signal within a desired reference value;
- and
- limiting a multiplied value of the digital input signal and the contrast control signal within a desired reference value.
An image control apparatus for a digital monitor displaying a digital input signal applied from a graphic card, said apparatus comprising:
- control means for producing an offset control signal,
- a digital adder for adding the digital input signal to the offset control signal;
- and
- added value control means for limiting an added value of the digital input signal and the offset control signal to be not greater than a desired reference value applied from the control means.
An image control apparatus for a digital monitor displaying a digital input signal applied from a graphic card, said apparatus comprising:
- control means for producing a contrast control signal;
- a digital multiplier for multiplying the digital input signal by the offset control signal;
- and
- multiplied value control means for limiting a multiplied value of the digital input signal and the contrast control signal within a desired reference value applied from the control means.
An image control apparatus for a digital monitor displaying a digital input signal applied from a graphic card, said apparatus comprising:
- control means for producing an offset control signal and a contrast control signal;
- a digital adder for adding the digital input signal to the offset control signal;
- a digital multiplier for multiplying the digital input signal by the offset control signal;
- added value control means for limiting an added value of the digital input signal and the offset control signal within a desired reference value applied from the control means;
- and
- multiplied value control means for limiting a multiplied value of the digital input signal and the contrast control signal within a desired reference value applied from the control means.
Dependencies are inferred from the claim text.