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LED display screen and preparation method thereof

A technology of LED display and LED lamp beads, which is applied in the direction of instruments, identification devices, etc., can solve the problems of heavy ink, low efficiency, short circuit of LED display, etc., and achieve the effect of strong sense of unity, high efficiency and improved contrast

Inactive Publication Date: 2018-06-29
UNILUMIN GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, on the one hand, due to the strong smell of the ink, there may be a risk of short circuit of the LED display due to the leakage of electricity after the ink dries; on the other hand, the inkjet process needs to spray ink row by row, which is inefficient. use

Method used

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  • LED display screen and preparation method thereof
  • LED display screen and preparation method thereof

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preparation example Construction

[0030] The present invention also provides a kind of preparation method of LED display screen, comprises the following steps:

[0031] preset a printed circuit board;

[0032] Fixing a plurality of LED lamp beads on the printed circuit board, the plurality of LED lamp beads are arranged in an array and there is a gap between adjacent LED lamp beads;

[0033] applying an adhesive into the gap;

[0034] Put the printed circuit board after the above treatment into the flocking equipment for flocking. After the flocking is completed, after the glue is cured, the excess fluff is cleaned to obtain an LED with only fluff stuck in the gap between adjacent lamp beads. display screen.

[0035] As can be seen from the foregoing description, the beneficial effects of the present invention are:

[0036] The preparation method of the LED display screen provided by the present invention uses flocking to replace the face mask. Since the manufacturing cost of the traditional small-pitch mas...

Embodiment 1

[0051] Please refer to figure 1 Shown, embodiment one of the present invention is:

[0052]An LED display screen, comprising a printed circuit board 1 and a plurality of LED lamp beads 2 arranged in an array fixed on the printed circuit board 1; there is a gap between adjacent LED lamp beads 2, and glued in the gap Knot fluff3.

[0053] The fluff 3 is nylon flame-retardant fluff of dark colors such as black, brown or navy blue.

[0054] The height of the fluff 3 is smaller than that of the LED lamp bead 2 .

Embodiment 2

[0055] Please refer to figure 2 Shown, embodiment two of the present invention is:

[0056] A method for preparing an LED display, comprising the steps of:

[0057] Step 1: preset a printed circuit board;

[0058] Step 2: Fix a plurality of 1*1*1mm LED lamp beads on the printed circuit board, the plurality of LED lamp beads are arranged in an array and there is a gap between adjacent LED lamp beads; adjacent LED lamp beads The center distance between beads is 1.588mm;

[0059] Step 3: Take a planar grid-shaped jig 4, the thickness of the jig 4 is 0.4mm, and the material is 304 stainless steel; the jig 4 consists of hollow squares 5 of 1.2*1.2mm arranged in an array grid, the grid of the jig 4 corresponds to a plurality of LED lamp beads on the printed circuit board; the center-to-center distance of adjacent hollow squares 5 is 1.588mm; the number of hollow squares 5 on the jig 4 The same number as the number of lamp beads on the printed circuit board;

[0060] Step 4: Co...

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Abstract

The invention provides an LED display screen and a preparation method thereof. The LED display screen comprises a printed circuit board and multiple LED lamp beads fixed on the printed circuit board and in array distribution; a gap is reserved between adjacent LED lamp beads; and villi are arranged in the gap. By flocking in the gap between adjacent LED lamp beads of a lamp bead circuit board of asmall-space LED display screen to replace traditional mask, the contrast ratio of the LED display screen is increased, the production cost is lowered, and the using reliability of the LED display screen is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an LED display screen and a preparation method thereof. Background technique [0002] Small-pitch LED displays are being used more and more widely. At present, in order to improve the contrast of the LED display and solve the problem of color difference, the usual solution is to add a plastic mask (material is PC or PPS) to the LED display. However, due to the high precision requirements of small-pitch LED displays, it is difficult to produce masks suitable for small-pitch LED displays, with low yield and high cost. In addition, the use of masks will also cause problems such as mask warping and obvious modular effects when the screen is dark. In order to solve these problems, in recent years, attempts have been made to use inkjet technology instead of face masks in the market. However, on the one hand, due to the strong smell of the ink, there may be a risk of short circuit o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F9/33
Inventor 袁贤阳赵平林
Owner UNILUMIN GRP
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