CN210224035U - White light Micro LED structure - Google Patents

Abstract

The utility model discloses a white light Micro LED structure, including circuit substrate equidistant ground evenly gu the brilliant a plurality of blue light LED chips, every three the blue light LED chip be a chipset, every the spraying has red quantum dot layer and green quantum dot layer on two blue light LED chips of chipset respectively, the utility model discloses a structure is convenient for realize, can improve production efficiency, reduces the defective rate, practices thrift the cost.

Description

White light Micro LED structure

Technical Field

The utility model relates to a semiconductor display technology field specifically is a white light Micro LED structure.

Background

Micro LED technology, i.e. LED scaling and matrixing technology. Refers to the size of high-density micro-sized LED integrated on a chip, such as the addressable and individually driven lighting of each pixel of an LED display screen, and the pixel grade is reduced from millimeter grade to micron grade. The Micro LED not only inherits the advantages of high efficiency, high brightness, high reliability and quick response time of the traditional LED, but also has the characteristics of energy conservation, simple mechanism, small volume, thinness and no need of backlight source for light emission.

Quantum dots, also known as nanocrystals, are nanoparticles composed of elements of groups II-IV or III-V. The particle size of the quantum dots is generally between 1 nm and 100nm, and the quantum dots can be suitable for micro-display with small size. The quantum dots have the effects of electroluminescence and photoluminescence, can emit fluorescence after being excited, and have the color determined by materials and sizes, so that the wavelength of different luminescence can be changed by regulating and controlling the particle size of the quantum dots. When the particle size of the quantum dot is smaller, the emission color is more blue, and conversely, the emission color is more red. The quantum dots have various chemical components, can cover the whole visible region and infrared spectrum in luminescent color, and have the characteristics of high-capacity light absorption-luminescent efficiency, narrow full width at half maximum, wide absorption spectrum and the like, so that the quantum dots have high color purity and color saturation. The quantum dot is small in size at the nanometer level, and is very suitable for the white light conversion application of micro LEDs.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art scheme, the utility model provides a white light Micro LED structure, the utility model discloses a structure is convenient for realize, can improve production efficiency, reduces the defective rate, practices thrift the cost, can the effectual problem that the solution background art provided.

The utility model provides a technical scheme that its technical problem adopted is:

the white light Micro LED structure comprises a circuit substrate, wherein a plurality of blue light LED chips are uniformly fixed on the circuit substrate at equal intervals, every three blue light LED chips are a chip set, and a red quantum dot layer and a green quantum dot layer are respectively sprayed on two blue light LED chips of each chip set.

Preferably, the method further comprises the following steps:

the first blue LED chip of the chip group is sprayed with a red quantum dot layer, and the second blue LED chip is sprayed with a green quantum dot layer.

Preferably, all the blue LED chips on the circuit substrate are considered as an array of a single chip set.

Preferably, the material of the red quantum dot layer and the green quantum dot layer comprises II-IV group, III-V group or IV-V semiconductor material.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model has the advantages of simple structure, the technology of being convenient for realizes, can improve production efficiency, reduces the defective rate, practices thrift the cost.

Drawings

Fig. 1 is a schematic structural view of the present invention;

the reference numbers in the figures are:

1. a circuit substrate; 2. a blue LED chip;

R-QD, red quantum dot layers; G-QD, green quantum dot layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, the present embodiment provides a white light Micro LED structure, which includes a circuit substrate 1, a plurality of blue LED chips 2 are uniformly die-bonded on the circuit substrate 1 at equal intervals, every three blue LED chips 2 are a chip set, and a red quantum dot layer R-QD and a green quantum dot layer G-QD are respectively sprayed on two blue LED chips 2 of each chip set.

The first blue LED chip 2 of the chip group is sprayed with a red quantum dot layer R-QD, and the second blue LED chip 2 is sprayed with a green quantum dot layer G-QD.

All the blue LED chips 2 on the circuit substrate 1 are treated as an array of a single chip set.

The materials of the red quantum dot layer R-QD and the green quantum dot layer G-QD comprise II-IV family, III-V family or IV-V family semiconductor materials.

The utility model discloses a structure is convenient for realize, can improve production efficiency, reduces the defective rate, practices thrift the cost.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (2)

1. A white light Micro LED structure comprises a circuit substrate and is characterized in that a plurality of blue light LED chips are uniformly and fixedly crystallized on the circuit substrate at equal intervals, every three blue light LED chips are a chip group, a red quantum dot layer and a green quantum dot layer are respectively sprayed on two blue light LED chips of each chip group, and all the blue light LED chips on the circuit substrate are regarded as an array of a single chip group; the materials of the red quantum dot layer and the green quantum dot layer comprise II-IV family, III-V family or IV-V semiconductor materials.

2. The white light Micro LED structure of claim 1, further comprising:

the first blue LED chip of the chip group is sprayed with a red quantum dot layer, and the second blue LED chip is sprayed with a green quantum dot layer.

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