A wide color gamut light-emitting unit and a light-emitting device based on stacked adjacent interleaving links

Abstract

The invention discloses a wide-color-gamut light-emitting unit and a light-emitting device based on a laminated neighboring interlaced link, and belongs to the technical field of LED display. The wide-color-gamut light-emitting unit comprises a package unit, wherein a driving chip and at least four LED dies are stacked and packaged in the package unit; the driving chip comprises a HVCC pin, a GNDpin, a first data input and output pin and a second data input and output pin, and has a step-down circuit therein; at least one of the LED dies has a different spectral distribution characteristic. The wide-color-gamut light-emitting unit has high brightness and a wide color gamut. The light-emitting device based on a laminated neighboring interlaced link is formed by assembling a plurality of wide-color-gamut light-emitting unit according to the claim 1. The adjacent wide-color-gamut light-emitting units are connected through the first data input and output pins or the second data input andoutput pins. The neighboring interlaced link reduces the probability of dead pixels and improves the quality of the light-emitting device based on the laminated neighboring interlaced link.

Description

technical field [0001] The invention belongs to the technical field of LED display, and in particular relates to a wide color gamut light-emitting unit and a light-emitting device based on laminated adjacent interweaving links. Background technique [0002] LED has been widely valued for its high luminous efficiency, long service life, safety, reliability, environmental protection and energy saving. As an important means of information dissemination, LED display has become a symbol of urban information modernization. With the continuous progress of social economy and the continuous improvement of LED display technology, people's understanding of LED display will become more and more in-depth. , and its application fields will become wider and wider. [0003] Existing LED display screens are composed of multiple LED light-emitting units, and each LED light-emitting unit is packaged by multiple light-emitting diode wafers. However, the existing LED lighting units have the fo...

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Problems solved by technology

[0004] 1. The existing LED light-emitting unit has low color rendering index and poor color reproduction effect, which leads to the problems of insufficient brightness and narrow color gamut in the LED light-emitting device composed of the existing LED light-emitting sub-units;

[0005] 2. The link between the LED light emitting units is too fragile. When one of the links is broken, the LED light emitting unit corresponding to the link can no longer work normally, and there will be dead pixels, which seriously affects the LED light emitting device. quality;

[0006] 3. The existing LED lighting devices all use a step-down circuit at the power input end to reduce the high voltage and then send it to each LED lighting unit. Since there are many LED lighting units, the loss of branch current in transmission will cause LED Luminaire display is unbalanced

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