High-pixel-density LED display screen

Abstract

The embodiment of the invention discloses a high-pixel-density LED display screen. The pixel density of the LED screen can be effectively improved. The high-pixel-density LED screen disclosed by the embodiment of the invention comprises a panel circuit board, a basic circuit board and an LED component, wherein the panel circuit board is connected with the basic circuit board in a stacked manner; a window is arranged on the panel circuit board; the LED component comprises an upper layer of LED component and a lower layer of LED component; the upper layer of LED component is welded on the panel circuit board; the lower layer of LED component is welded on the basic circuit board; and the window is matched with the lower layer of LED component. According to the stacked design of the panel circuit board and the basic circuit board, the LED components welded on the panel circuit board and the basic circuit board are reduced; and the LED components are spaced, so that the production process requirement of patches can be met.

Description

technical field [0001] The invention relates to the field of electronic circuits, in particular to an LED display screen with high pixel density. Background technique [0002] LED display is a new type of information display technology developed rapidly in the late 1980s. The basic display unit is composed of dot matrix modules composed of light-emitting diodes. In recent years, with the rapid improvement of LED manufacturing technology, LED display technology has rapidly grown into the mainstream technology of flat panel display in just over ten years due to its high reliability, long service life, strong environmental adaptability, and high cost performance. , It is widely used in commercial advertising, information release, sports venues, stage performances and other fields. [0003] At present, LED display technology is developing in the direction of high pixel density and low power consumption. Among them, in the field of indoor display screens, displays with a pixel p...

AI Technical Summary

Problems solved by technology

[0004] As we all know, the smaller the pixel pitch of the LED display, the more difficult it is to design and manufacture the LED components on a circuit board, and the corresponding cost is higher.

These problems mainly include: the arrangement of components is too dense, and the layout design cannot meet the drive current requirements of the components through the conventional way of punching holes; the production process cannot meet the process requirements of SMT production, and production and processing are difficult

The existing method can achieve the purpose of increasing the pixel density by reducing the current, but this design will reduce the brightness of the entire screen and the gray level of the color, which will inevitably affect the display effect of the entire screen, or require special processes to manufacture special devices. The pass rate is also low and the cost is high; moreover, the design of encapsulating the whole circuit board increases the cost due to the large area and complicated process. In addition, the overall encapsulation brings problems such as difficulty in subsequent maintenance.

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