Electromagnetic touch structure, side-type backlight display module and display

Abstract

An electromagnetic touch-control structure, a side-type backlight display module and a display. The electromagnetic touch-control structure comprises a framework structure, and an electromagnetic screen structure arranged on the framework structure. The framework structure comprises a tabular metal back plate (100), and a frame structure (200) arranged surrounding the peripheral edge of the metal back plate (100). The electromagnetic screen structure comprises a light guide plate (300) and electromagnetic film (400) stacked between the metal back plate (100) and the frame structure (200), and a permanent magnet structure (500) arranged on the metal back plate (100), wherein the permanent magnet structure (500) is located at an inner side of the frame structure (200); the permanent magnet structure (500) is located between the electromagnetic film (400) and the metal back plate (100); and the electromagnetic film (400) is arranged above or below the light guide plate (300). By means of the technical solution, an electromagnetic signal blocked by the metal back plate (100) can be strengthened, so that a touch-control or writing signal can be recognized in a normal manner.

Description

technical field [0001] The present invention relates to the technical field of display devices, in particular to an electromagnetic touch structure, a side-entry backlight display module and a display. Background technique [0002] In traditional technology, electromagnetic touch technology is applied to large-size touch all-in-one machines (above 40 inches), especially when the display module adopts a side-type backlight module design, due to the metal backlight of the display module The board is close to the electromagnetic antenna module, so that when electromagnetic writing is performed, the electromagnetic signal will be partially shielded by the metal backplane, resulting in a decrease in the magnetic flux of the electromagnetic coil of the electromagnetic antenna module, which will make it difficult to recognize the writing signal, which will make the whole machine When writing or controlling with the electromagnetic writing pen, there will be problems such as disconn...

AI Technical Summary

Problems solved by technology

[0002] In traditional technology, electromagnetic touch technology is applied to large-size touch all-in-one machines (above 40 inches), especially when the display module adopts a side-type backlight module design, due to the metal backlight of the display module The board is close to the electromagnetic antenna module, so that when electromagnetic writing is performed, the electromagnetic signal will be partially shielded by the metal backplane, resulting in a decrease in the magnetic flux of the electromagnetic coil of the electromagnetic antenna module, which will make it difficult to recognize the writing signal, which will make the whole machine When writing or controlling with an electromagnetic writing pen, there will be problems such as disconnection and failure to draw lines, which will cause the whole machine to fail to work normally.

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