Television set capable of altering screen display area and control method thereof

Abstract

The invention discloses a method of changing the displaying area of a television screen. The method comprises the following steps: a set initial-point coordinate and a set end-point coordinate when the specific information is received and displayed on the screen are input into a television set image controller; when a scanning signal does not reach the set initial-point coordinate, the information sent out by a television set itself is displayed on the screen; when the scanning signal reaches the set initial-point coordinate, the received external video information is displayed on the screen; when the scanning signal surpasses the set end-point coordinate, the information sent out by the television set itself is displayed on the screen once again, and the specific information is the external video information, particularly is the computer information. The method can be used on the present large-size flat televisions without changing the hardware and the structure; when the video information or computer (PC) information which need to be reduced to watch are displayed on a large-screen flat television, a watching method of reducing the screen is provided, thus leading the screen to be more suitable for the using habit of users; the higher the intrinsic resolution of the television set, the better the effect of the reduced displaying area.

Description

technical field [0001] The present invention relates to an image display device, in particular to a television set that can be used as a display screen for a computer. Background technique [0002] At present, large-size TVs, especially large-size and high-resolution flat-panel TVs, are very common. The mainstream size of living room TVs has reached more than 42 inches, and most of the TVs used in bedrooms are 26 or 32-inch flat-screen TVs. . Most of these large-size flat-panel TVs have VGA or DVI interfaces, which can be used as computer monitors. When large-screen TVs were used as PC monitors in the prior art, the display method was traditional full-screen display. The implementation method is shown in Figure 3. In the figure, the screen display and SCALER output waveform should be one-to-one corresponding waveforms, that is, the waveform in the figure is the output of the scaling engine (SCALER) and the screen display waveform, and the top is the clock waveform. The mid...

AI Technical Summary

Problems solved by technology

When a large-screen flat-panel TV is used as a computer (PC) monitor, if a full-screen display is used, it is very uncomfortable for computer users who are used to watching the monitor at a close distance, and it is easy to cause eye discomfort and fatigue.

Images