一种弹性结构的LED显示模组

Abstract

本实用新型公开了一种弹性结构的LED显示模组，包括底座、位于底座内的PCB板、设置在所述PCB板上方的反射腔、位于所述反射腔上方的膜片，所述反射腔上设置有若干导光板，所述PCB板上设置有红外发射管和接收器，所述膜片与所述PCB板线路相连，所述底座和所述PCB板之间设置有弹性自复位结构。通过采用上述结构，利用弹性自复位结构消除膜片和底座组装后的间隙，装配后利用弹簧顶起的力使膜片和整机外盖及底座贴合到一体，减少触摸不灵敏及显示模糊现象。

Claims

1. A flexible LED display module, characterized in that: The elastic LED display module includes a base, a PCB board located inside the base, a reflective cavity disposed above the PCB board, and a diaphragm disposed above the reflective cavity. Several light guide plates are disposed on the reflective cavity. An infrared emitting tube and a receiver are disposed on the PCB board. The diaphragm is connected to the circuit of the PCB board. An elastic self-resetting structure is disposed between the base and the PCB board. 2.The LED display module of claim 1, wherein: The elastic self-resetting structure includes a plurality of guide posts disposed on the base, a spring sleeved on the corresponding guide post and located between the base and the PCB board, and a buckle disposed on the base and whose upper end contacts the PCB board. 3.The LED display module of claim 2, wherein: The height of the guide post is less than or equal to the distance between the base and the PCB board when the spring is compressed to its limit. The buckle abuts against the top surface of the PCB board when the spring is in a non-compressed or partially compressed state after being reset. 4.The LED display module of claim 2, wherein: The PCB board has guide post holes at corresponding positions for the guide post to pass through. The spring is located between the base and the PCB board and is sleeved on the guide post. When the PCB board is pressed down, the guide post passes through the guide post holes and extends beyond the top surface of the PCB board. 5.The LED display module of claim 2, wherein: The buckle includes a vertical part disposed on the base and a hook-shaped part located at the upper end of the vertical part. The hook-shaped part abuts against the top surface of the PCB board when the spring is reset and the PCB board is moved to the limit position.

6. The LED display module of claim 5, wherein: The base is provided with at least two buckles that are symmetrically arranged on the PCB board, and a reinforcing rib is provided between the buckles and the base to connect the two. 7.The LED display module of claim 1, wherein: The reflective cavity is provided with light-blocking foam that is symmetrical about the left and right sides of the reflective cavity, and the light-blocking foam is located on the side of the outermost light guide plate. 8.The LED display module of claim 1, wherein: The diaphragm is a colored light-blocking screen-printed panel or an infrared light-blocking screen-printed panel. 9.The LED display module of claim 1, wherein: The PCB board is equipped with a connection line that connects to an external computer MCU microprocessor. 10.The LED display module of elastically structured as claimed in claim 1, wherein: A machine support frame is provided above the diaphragm, and an outer cover is located above the machine support frame and glued to the machine support frame. The outer cover is connected to the base. Both the machine support frame and the outer cover are provided with a window area of ​​the same size as the diaphragm. A sealing ring is provided between the window area and the diaphragm.

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