A production process of LED elements for increasing display contrast

Abstract

The invention discloses an LED element production technique for increasing display contrast. The LED element production technique comprises the steps of: firstly, subjecting the LED element to semi-finished product packaging in a bracket form, wherein white light is formed by adopting a technique of spraying yellow fluorescent powder on a blue-light chip to form a bracket-form or PCB-form white-light semi-finished product; adopting a glue dispensing or die pressing form, preparing black powder or black solvent in proportion in packaging glue to form black glue, and encapsulating the black glue in the semi-finished product to form a finished product. The functionality of the black glue is to increase display contrast of the LED element, the functionality directly acts on the interior of the packaged body, so that the periphery of the light emitting chip is black, the effect is better than that of the traditional technique, and the color development contrast is higher. According to the LED element production technique, the black glue is designed in the interior of the LED element, is not liable to fall off, is prevented from changing color due to direction action of sunlight and air when exposed, and has good uniformity.

Description

technical field [0001] The invention relates to a production process of an LED element for increasing display contrast. Background technique [0002] At present, when the LED components on the market are used as display panels or screens, black ink is painted around the surface of the LED components to increase the color contrast, but the black glue paint will fall off after long-term use. During maintenance and replacement, due to the long-term exposure of the old parts to the air and sunlight to produce discoloration, the replacement of new parts is easy to form a color difference with the surroundings, which affects the appearance. Contents of the invention [0003] In order to overcome the above-mentioned shortcomings, the present invention provides a production process for LED elements with increased display contrast. The present invention adopts an integrated design, adding black powder or black solvent to the packaging glue composed of epoxy resin or silica gel, and...

AI Technical Summary

Problems solved by technology

[0002] At present, when LED components on the market are used as display panels or screens, black ink is brushed around the surface of the LED components to increase color contrast, but the black glue paint will fall off after long-term use

During maintenance and replacement, due to the long-term exposure of the old parts to the air and sunlight to produce discoloration, the replacement of new parts is easy to form a color difference with the surrounding area, which affects the appearance