LED luminescent device, display module and display equipment

Abstract

The invention discloses an LED light-emitting device, a display module and display equipment. By arranging a decoupling capacitor and a coupling capacitor and arranging a voltage stabilizing circuit in a driving chip, the driving mode that all the LED light-emitting devices in the display module in the prior art are connected in parallel to form a single row can be changed into the driving mode that multiple rows are connected in parallel and multiple LED light-emitting devices in each row are connected in series; the problem that the LED light-emitting devices at the tail end of a power line cannot work normally due to the fact that the power line is too long and the line loss is too large when all the LED light-emitting devices in the display module are connected in parallel to form a single line is solved, and then the load number of the power supply is increased. The voltage stabilizing circuit can avoid the influence of the voltage drop on the lower-stage LED light-emitting device when the LED light-emitting devices are connected in series, so that the load quantity of the power supply is increased; the decoupling capacitor can avoid noise interference in a power supply signal, the stability of the driving chip is improved, and the display quality is improved; and the coupling capacitor can avoid interference of a power signal to a data signal, and the display stability is improved.

Description

Technical field [0001] The present invention relates to the field of LED display, and more particularly to an LED light emitting device, a display module, and a display device. Background technique [0002] Due to the advantages of high grachitude, high-grade angle, small power consumption, and customizable screen shapes, are widely used in industrial, transportation, commercial advertising, information release and other areas. [0003] The LED display is typically composed of a plurality of LED light emitting devices, and conventional LED light emitting devices directly encapsulate LED luminescent wafers, and then drive LED luminescellic wafers by an external drive chip. However, the external drive chip is easily affected by the outside world. The complex and variable external environment is prone to problems such as the failure of the LED light emitting device, thereby affecting the service life of the LED light emitting device. Therefore, the LED light emitting device of the b...

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides an LED light-emitting device, a display module, and a display device, which can solve the problem that the LED light-emitting device connected to the end of the power line cannot work normally due to the line loss of the power line, and the power supply can drive more LEDs. Light-emitting devices to increase the load capacity of the power supply

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