Device for eliminating splicing seam of light crystal display (LCD) screen and application method of device

Abstract

The invention belongs to the technical field of image display and in particular relates to a device for eliminating a splicing seam of a light crystal display (LCD) screen and an application method of the device. The device comprises an LCD panel, wherein the LCD panel comprises a display area and a non-display area; a selected area is arranged at the edge of the display area of the LCD panel; the selected area switches display images according to image switching frequency, displays the own display image at a1 moment and displays an image, which is required to be displayed by the non-display area but cannot be displayed by the non-display area, at a t2 moment; the selected area is as wide as and as long as the non-display area; an optical device which does not change the polarization direction of a linear polarized light from the selected area at the t1 moment according to the image switching frequency and rotates the polarization direction of the linear polarized light from the selected area by 90 DEG at the t2 moment is arranged in front of the LCD panel; a uniaxial crystal is arranged in front of the optical device; an optical axis of the uniaxial crystal is in a light incidence plane, and an inclined angle is formed between the optical axis and a crystal plane; according to the polarization direction of a signal light, the deflection of the signal light is determined; and the splicing seam of the screen is covered and eliminated by using an image signal which is subjected to image deflection. By the invention, the splicing seam of the screen can be completely eliminated, and the problems of incompleteness and discontinuity of splicing images of the screen are solved.

Description

technical field [0001] The invention belongs to the technical field of image display, and in particular relates to a device for eliminating seams of LCD screens and an application method thereof. Background technique [0002] In recent years, LCD displays have become the mainstream products of displays due to their thin and light volume, stable performance, no radiation, and energy saving. Although super-sized LCDs can already be 80 inches or even 100 inches, the size of LCD panels that can be mass-produced is still limited to less than 100 inches. The main reason is that the cost is relatively high and the pass rate is too low. The current mainstream is mainly to assemble and splice existing size LCD panels into larger size screens. Therefore, how to use existing size LCD panels to further assemble and splice into a large-screen video wall to meet the requirements of large-screen display has become an important issue in this technical field. [0003] Due to the requiremen...

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Problems solved by technology

[0004] The technical problem solved by the present invention is to overcome the deficiencies of the prior art and provide a device for eliminating LCD screen seams that can completely eliminate screen seams and solve the problem of incomplete and discontinuous screen splicing images

[0005] The present invention also provides an application method of a device for eliminating LCD screen seams that can completely eliminate screen seams and solve the problem of incomplete and discontinuous screen splicing images

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