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LED display screen

A technology of LED display and PCB board, applied in the field of display, can solve the problems of reduced brightness of LED display, strong graininess of display screen, reduced luminous efficiency, etc. Effect

Inactive Publication Date: 2016-03-23
吴冬梅
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, in order to improve the contrast, black PCB and LED encapsulant with melanin are also used. The black plastic frame will absorb a lot of light, and the black PCB will also absorb a lot of light. LED particles also need to use encapsulant with melanin, which leads to The brightness of the LED display is greatly reduced, the luminous efficiency is seriously reduced, and the display screen is very grainy, and there is no integrated flat feeling

Method used

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Embodiment Construction

[0026] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] Reference herein to "one embodiment" or "an embodiment" refers to a particular feature, structure or characteristic that can be included in at least one implementation of the present invention. "In one embodiment" appearing in different places in this specification does not all refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] see figure 1 , figure 1 It is a structural schematic diagram of the LED display screen in a specific embodiment of the present invention. Such as figure 1 As shown, the LED display screen includes a PCB board 1 , several LED particles 2 , a glue frame 3 , a glue layer 4 and a shielding component 5 . Several LED pa...

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Abstract

The invention provides an LED display screen. The LED display screen comprises a PCB, a plurality of LED granules, a plurality of glue frames and a shielding portion; the LED granules are arranged on the PCB; the glue frames are arranged on the PCB, the glue frames are provided with a plurality of protruding portions which are arranged at intervals in the direction of being perpendicular to the PCB, the protruding portions and the PCB form a plurality of grooves, and the LED granules are arranged in the grooves; the shielding portion covers the upper surfaces of the glue frames, and the light transmittance of the shielding portion is larger than 5% and smaller than 30%. Compared with the prior art, the LED display screen has the advantages that the transmittance of a film (or a plate) attached to the surface of the LED display screen can be regulated according to the actual needs to achieve a balance of the contrast ratio and the light transmittance, so that the LED screen can better achieve the integration; meanwhile, the film (or the plate) can achieve the waterproof effect, effectively reduce the reflectance of the glue frames and increase the contrast ratio, so that the application places of the LED screen are more.

Description

technical field [0001] The invention relates to the field of display screens, in particular to an LED display screen. Background technique [0002] The existing LED display screen is mounted on the PCB board through a single LED SMT (Surface Mount Technology, referred to as SMT), and then a black plastic frame is pasted to isolate each LED, so that each LED forms a separate imaging pixel, avoiding LEDs. The crosstalk between light rays improves the contrast. At the same time, in order to improve the contrast, black PCB and LED encapsulant with melanin are also used. The black plastic frame will absorb a lot of light, and the black PCB will also absorb a lot of light. LED particles also need to use encapsulant with melanin, which leads to The brightness of the LED display is greatly reduced, the luminous efficiency is seriously reduced, and the graininess of the display screen is very strong, and there is no integrated flat feeling. [0003] Therefore, it is necessary to fu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F9/33
CPCG09F9/33
Inventor 吴冬梅
Owner 吴冬梅
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