Overscanning automatic adjustment method and system of display equipment

Abstract

The invention discloses an overscanning automatic adjustment method and an overscanning automatic adjustment system of display equipment. The method comprises the following steps that: the display equipment outputs a control signal to an image signal generator, wherein the control signal contains the format requirement of a current image display format supported by a current image input channel; the image signal generator is switched to the current image input channel according to the control signal and feeds back an image adjustment signal corresponding to the current image display format to the display equipment according to the format requirement; the display equipment adjusts an overscanning display area of the current image display format according to the image adjustment signal; and the display equipment is switched to an unadjusted next image display format or an image display format supported by an unadjusted next image input channel. The overscanning automatic adjustment method and the overscanning automatic adjustment system have the beneficial effects that the time consumed is short; no artificial participation is required; while the labor cost is saved, the productivity of an enterprise is greatly improved; and the consistence of the overscanning display area can be ensured, so that the display quality of the display equipment is improved.

Description

technical field [0001] The invention relates to the technical field of image display, in particular to a method and system for automatic overscan adjustment of a display device. Background technique [0002] In the past, there was usually a natural physical defect on CRT TV sets, which caused geometric distortion of the image screen, which became more obvious as it went to the edge. Therefore, in order to display a more realistic picture and reduce distortion, the content displayed on the screen will be adjusted to about 90% to 95% of the picture range when leaving the factory. The lost part of the image pixels is the so-called overscan. [0003] When the display device enters the liquid crystal era, the liquid crystal display no longer has the above-mentioned physical defects, but due to differences in TV signals in various regions, there will be deviations in the transmission of effective image information. If all received image content is displayed 100%, there may be abn...

AI Technical Summary

Problems solved by technology

Due to the increasing number of input channels of TVs and other equipment, more and more input formats are supported. Taking TVs as an example, the analog TV formats supported now include PAL, NTSC, SECAM, etc., and the digital TV formats include DVB. , ATSC, ISDB, DMB, etc., and other input channels, such as AV, YPBPR, S-VIDEO, SCART, HDMI, USB, etc., resulting in more and more workload for engineers to adjust, and lower and lower efficiency

Moreover, the levels of different engineers cannot be guaranteed to be completely consistent, and the data of debugging and measurement cannot be guaranteed to be completely consistent.

Even if it is the same engineer, the adjusted results at different times will be different, and there is no guarantee that the factory state of the display device is the best display state

Especially now that the update of the display screen is getting faster and faster, manufacturers need to constantly replace the screen body, which requires engineers to continuously configure the screen, which naturally requires constant overscan adjustments, wasting a lot of manpower and material resources

Images