Ultrathin pad pasting LED display module

Abstract

The super-thin-film LED display module comprises a LED drive circuit with an output interface, light permeating film and LED illuminants fixed on the LED drive circuit in different arranging modes. It is characterized in that between the LED drive circuit and the light permeating film is provided with a dividing piece in grid structure, the arranging modes of light-permeating windows of the grid are corresponding to that of the LED illuminants. The LED illuminant drive circuit, the light permeating film and the dividing piece fit together tightly. By changing and combining the colors of the illuminants and light permeating films, single-color, two-color and all-color LED display module can be produced; Light-permeating film can be put off to repair and change illuminant; soft or transparent LED display module can be produced; modules can be divided, singly or by permutation and combination, to form different shapes or patterns. Advantage: thin thickness, light weight, few procedures and low waster rate.

Description

technical field [0001] The invention relates to an LED display device, in particular to an LED display module. Background technique [0002] LED display screen is a kind of display made by using LED light-emitting lamp or light-emitting chip as the display module as the light-emitting body, and a plurality of module units are arranged according to the design scheme. It has a wide range of applications in the display field, such as indoor and outdoor large-scale display screens, strip screens, information distribution boards, etc. With the rapid development of electronic technology, processing technology, material science and other high-tech, people have put forward higher requirements for the design, production and application of LED displays. It is hoped that the performance of the LED display screen will be higher, the resolution per unit area will be higher, the colors will be more vivid and rich, and the price will be lower. [0003] The structure of the existing LED d...

AI Technical Summary

Problems solved by technology

[0004] 1. After the shell kit and the LED driver board are cured at high temperature, it is impossible to open and repair it. If there is a problem with a certain LED, the entire module has to be scrapped. Therefore, the scrap rate is more than 1%, and the amount of scrap is large;

[0005] 2. Due to the requirements of the production process, the thickness of the shell kit and the distance between the LED pixels should not be too small. The dot pitch of the LED single-color dot matrix module produced by this method is generally only 2mm at the minimum, and the LED two-color module is generally The minimum dot spacing is 4mm, and the dot spacing of LED full-color modules is generally 6mm;

[0006] 3. Due to the limitation of the glue injection process and the shell kit, the thickness of this kind of module is generally above 8mm, which cannot meet the needs of ultra-thin LED displays;

[0007] 4. Influenced by the weight of the colloid and the shell, the display screen produced by this type of module is heavy;

[0008] 5. The color of the colloid is generally translucent milky white and transparent. The color displayed by the LED display module only depends on the color of the illuminant and cannot be changed;

[0009] 6. The module structure has determined that its production process is many and takes a long time

[0015] ②The colloid is easily oxidized and discolored if it is exposed to the outside for a long time;

[0016] ③ The appearance and shape of this LED display module are very different from traditional modules, which is difficult for users to accept. Therefore, LED display modules with this structure cannot form a market

[0018] ①The production of this kind of PCB board must use special molds for stamping, and the production equipment cannot use traditional PCB technology. Therefore, most of the PCB boards with this structure are currently produced and processed in Taiwan, and rarely produced and processed in other regions, making it develop are severely restricted;

[0019] ②The cost of PCB boards is very high. Now the price of a single PCB board in the market has exceeded the overall price of traditional LED display modules. Manufacturers using LED display modules cannot accept such a high price

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