led display

Abstract

The invention discloses an LED display screen. The LED display screen includes: an LED light-emitting array, the LED light-emitting array includes a plurality of LED light-emitting chips; a matrix light-shielding frame, the matrix light-shielding frame includes a plurality of grids, and a plurality of the grids are connected to form a matrix, and the The grid is hollowed out, and the LED light-emitting chips are correspondingly arranged in the grid; the light-absorbing plate is used to absorb part of the outgoing light of the LED light-emitting chips, wherein the light-absorbing plate completely covers the grid LED light-emitting chips surrounded by lattice. According to the present invention, by adding a light-absorbing plate structure inside the display screen, the light emitted by the LED is all emitted through the light-absorbing plate, thereby effectively balancing the brightness of the three colors of R, G, and B at different viewing angles, and achieving the purpose of reducing chromatic aberration. Improved the visual effect of the LED display.

Description

technical field [0001] The present invention relates to the field of display, more specifically, to an LED display screen. Background technique [0002] LED lamp beads have the characteristics of high luminous brightness, fast response, and can be individually controlled to turn on and off. Patent CN104049374A proposes such as figure 1 The barrier frame array shown is used to ensure that adjacent LED pixels do not have crosstalk. [0003] However, for a display screen composed of an array of LED lamp beads, the problem of chromatic aberration is introduced after the barrier frame array (corresponding to the light-shielding frame composed of multiple grids described below) is added. This is because the light emitted by the LED lamp beads is divided into two categories: light scattered and absorbed by the side wall of the shading frame; The screen has a different angular distribution of luminance than LED screens without shading frames. [0004] figure 2 It is a schemati...

AI Technical Summary

Problems solved by technology

[0008] In summary, due to the staggered distribution of the RGB three-color LED light-emitting chips on the screen and the different distances from the side walls of the grid, the LED light-emitting chips are blocked by the side walls of the grid to different degrees, so that each of the three types of chips reaches the maximum brightness. The angles and viewing angles are different, which causes the problem of chromatic aberration under different viewing angles. Obviously, the existing technology does not provide a corresponding solution to this problem.

And this chromatic aberration problem greatly affects the viewer's experience

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