Surface consistency packaging LED display unit based on mold pressing technology

A display unit and consistency technology, applied in electrical components, identification devices, instruments, etc., can solve problems such as difficulties in mass production, poor surface consistency of LED displays, and poor ink color consistency
CN110797450AInactive Publication Date: 2020-02-14长春希龙显示技术有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
长春希龙显示技术有限公司
Publication Date
2020-02-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a surface consistency packaging LED display unit based on a mold pressing technology, which comprises a circuit board fixedly provided with an LED light-emitting chip, and a first packaging adhesive layer prepared on the surface of the circuit board fixedly provided with the LED light-emitting chip. The surface consistency packaging LED display unit based on a mold pressing technology is characterized by further comprising a second packaging adhesive layer, the second packaging adhesive layer is prepared on the first packaging adhesive layer, the first packaging adhesive layer is an epoxy resin AB adhesive layer mixed with 10%-60% of a scattering agent by weight, and the thickness is 0.15-0.3 mm; and the second packaging adhesive layer is an epoxy resin adhesive layer mixed with 10%-60% of a scattering agent by weight and 0.3%-1% of melanin, and the thickness is 0.1-0.2 mm. The transmittance and the brightness are high, and the surface consistency of the wholepackaging unit can be ensured under the condition that the brightness is not lost.
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Description

technical field

[0001] The invention belongs to the technical field of high-density LED display screens, and relates to a surface consistent packaging LED display unit based on molding technology. Background technique

[0002] With the continuous development of LED display technology, MINI LED Mirco LED occupies the hot spots of various news. All display related manufacturers are aware of the future development trend and conduct in-depth research on this. At the same time, industrial technologies related to display screens, such as crystal bonding equipment Accuracy and recognition capabilities, circuit board process capabilities, and LED light-emitting chip technology are also developing rapidly, all of which promote the overall improvement of LED display technology. Traditional SMD technology is limited by the difficulty of mass production when the size of the lamp bead is 1mm or less. The corresponding COB technology has natural advantages in small-pitch display, but the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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