Light-emitting diode (LED) for display screen and production method

Abstract

The invention provides a light-emitting diode (LED) for a display screen and a production method and relates to a plug-in LED for the display screen and a packaging method of the plug-in LED. Welding areas (15, 16, 17, 18 and 19) and die bonding area (20) are arranged at the tops of outer pins (10, 11, 12 and 13). Three groups of die bonding glue (9) are connected onto the die bonding area (20). An LED chip (2) is connected onto each group of die bonding glue (9). The LED chips (2) are connected with the welding areas (15, 16, 17, 18 and 19) through conducting wires (4) and then are sealed by using epoxy resin caps (14). The three LED chips (2) are equidistantly arranged in a line. Three curved-surface body optical structures (8) corresponding to the three LED chips (2) are arranged at the tops of the epoxy resin caps (14). The products which are produced by adopting the production method provided by the invention have the advantages of high brightness, large light output angle and good pixel resolution, and can be widely used in the fields of display screens, advertisement screens and the like.

Description

Technical field: [0001] The invention relates to a plug-in light-emitting diode for a display screen and a packaging method thereof. Background technique: [0002] The technology of LED light-emitting diodes is constantly updated and improved, and its applications are becoming more and more extensive. At present, the application of LED display accounts for a considerable proportion of the entire LED application market. [0003] Display LEDs on the market are mainly divided into in-line and SMD. The shape and structure of traditional display LEDs are as follows: figure 1 and figure 2 as shown, figure 1 The in-line elliptical LED shown is a package (1) made of epoxy resin, generally an elliptical hemisphere, and the LED chip (2) is fixed in the concave bracket cup (3), and is electrically connected by a wire (4) That is, turn on the power supply through two pins (5) and light up; and figure 2 The LED shown is a prefabricated cup-shaped SMD LED, which is generally squar...

AI Technical Summary

Problems solved by technology

At present, the color display screens on the market generally use 2R1G1B, 1R1G1B, 2R1G, etc., because they use three single-color LEDs of R, G, and B. It is difficult to reflect the true color

At present, manufacturers have begun to try to use SMD LEDs, but basically they have to withdraw from the market because of weather resistance problems.

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