Infrared display panel

Abstract

The embodiment of the invention provides an infrared display panel. The infrared display panel comprises a display module, a protective cover plate attached to the surface of the display module, and an infrared touch assembly clamped on the periphery of the protective cover plate. The infrared touch assembly comprises frames and a plurality of groups of infrared geminate transistors arranged in the frames, wherein each group of infrared geminate transistors is arranged in the opposite frames; the frames comprise a first groove and a second groove. One end of a protective cover plate is clampedin the first groove; the second groove is used for placing an infrared geminate transistor; the vertical height between the infrared light source and the display panel is in the range of 0 nm to 20 nm. User operation is facilitated; in addition, optical cement is arranged between the display module and the protective cover plate, so that the display module and the protective cover plate are of anintegrated structure, a protective pressing piece is not needed, the use of the protective pressing piece and foam is saved, the assembly in a dust-free environment is not needed, the assembly efficiency of the whole machine is greatly improved, and the material and labor cost is reduced.

Description

technical field [0001] The present application relates to the technical field of infrared touch display, in particular to an infrared display panel. Background technique [0002] In the field of display, infrared touch is currently occupying a large part of the market in the field of touch by virtue of mature technology, accurate touch precision, and relatively cost advantages. The principle of infrared touch is to analyze the touch position by blocking the infrared rays emitted by the infrared frame for positioning. [0003] The infrared touch screen uses the dense infrared matrix in the X and Y directions to detect and locate the user's touch position. The infrared touch display screen installs a circuit board frame in front of the display screen, and arranges the infrared emitting tubes and infrared receiving tubes symmetrically on the four sides of the circuit board frame, forming a one-to-one corresponding infrared matrix that crosses horizontally and vertically (paral...

AI Technical Summary

Problems solved by technology

When the user touches the display screen, the finger will block the two infrared rays passing through the position, so the position of the touch point on the display screen can be judged, so as to realize the recognition of the touch. However, ordinary infrared touch screens only have Basic plane touch function, that is, only when the fingertip of the operating finger is in the plane where the infrared matrix is ​​located, the infrared touch screen can recognize the corresponding touch

In this way, when performing touch control, the finger must be completely in the plane where the infrared matrix is ​​located, causing the touch to fail, and when performing multi-touch, it is necessary for multiple fingers to be in the plane where the infrared matrix is ​​located at the same time, which makes it easier to use. operator's operation

[0004] The structure of the infrared touch display panel in the prior art includes a stacked display module, an infrared touch component, and a cover plate. After vacuum lamination, the cover plate and the infrared touch component Keep a small height. In addition, the protective cover and the display module are installed in the front frame assembly in two steps in sequence. A protective pressing piece is required between the protective cover and the display module board to fix the protective cover. In order to improve the cushioning effect, it is necessary to install foam on the upper and lower sides of the protective pressing sheet. The entire assembly process is relatively complicated and needs to be carried out in a dust-free environment. The assembly efficiency is low and needs to be improved.

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