High-color gamut LED backlight source and processing method thereof

A technology of LED backlight and processing method, which is applied in the direction of electrical components, electric solid devices, circuits, etc., can solve the problems of reducing high voltage and achieve the effect of improving color reproduction

Inactive Publication Date: 2018-03-23
JIANGSU WENRUN OPTOELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the contrary, although multiple sets of series / parallel LED power supplies require a higher constant current to drive, they reduce the need for high voltage

Method used

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  • High-color gamut LED backlight source and processing method thereof
  • High-color gamut LED backlight source and processing method thereof
  • High-color gamut LED backlight source and processing method thereof

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Embodiment Construction

[0030] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0031] A high color gamut LED backlight, such as figure 1 As shown, it includes an SMC support, on which a UV LED chip and several blue LED chips are arranged in series; the LED chip after series connection is connected with the pin 4 of the positive and negative electrodes of the SMC support by gold wire bonding technology; Fluorescent glue is attached to the wafer, and the fluorescent glue is made of yellow-green powder, KSF red powder and glue.

[0032] Specifically, there is one UV LED chip, and a UV LED chip with a wavelength of 390-395 nm is used.

[0033] There are three blue LED chips, and blue LED chips with a wavelength of 445-450nm are used.

[0034] The UV LED chip and the blue LED chip are fixed on the SMC bracket by a crystal-bonding glue, and the crystal-bonding glue is insulating glue or silver glue.

[0035] The ratio of yellow-...

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Abstract

The present invention relates to a high-color gamut LED backlight source and a processing method thereof. The processing method comprises a step 1 of fixing a UV LED wafer and a plurality of blue light LED wafers on an SMC support via a die bonder for die bonding; a step 2 of adopting a gold wire bonding technology to connect the four LED wafers in series and then connect the positive and negativeelectrodes of the SMC support via a wire bounder; a step 3 of preparing a fluorescent glue solution, wherein the fluorescent glue solution is a mixture of the glue, the yellow green powder of which the emission wavelength is 537 nm and the KSF red powder; a step 4 of pouring the prepared fluorescent glue solution into a glue barrel of a glue dispenser, extruding the glue and the bubbles, and thendispensing according to the GTV color gamut requirements; a step 5 of carrying out the threshing processing on the dispensed and baked LED product and then using a splitting testing machine to splitaccording to the given GTV color gamut requirements, so that the split product satisfies the conditions that the NTSC color gamut is greater than 90%, a spectrum generates a peak wave at the 380-410 nm and has a plurality of peak waves at the 600-700 nm, and the color rendition degree of the LED backlight source is improved.

Description

technical field [0001] The invention relates to the technical field of LEDs, in particular to a high color gamut LED backlight source and a processing method thereof. Background technique [0002] In the 21st century, backlights are developing rapidly, and new technologies and products are constantly being launched. LED backlights are gradually entering industrialization and have a certain scale. Compared with CCFL, LEDs have obvious energy-saving advantages, and LED backlights still need to be improved. At present, the domestic upstream supporting factories cannot keep up with the international situation, technical exchange and interactive improvement and the application and promotion of sample products are the biggest obstacles for LED to enter the field of large-size LCD backlight. As one of the important accessories of LCD products, backlight Source, developing rapidly, new technologies and new products are constantly launched. Among them, LED (Light Emitting Diode) bac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L25/075H01L33/00H01L33/48H01L33/62
CPCH01L33/005H01L25/0753H01L33/48H01L33/62
Inventor 刘三林
Owner JIANGSU WENRUN OPTOELECTRONICS
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