Anti-crosstalk device based on a Novel Micro-LED structure design

Abstract

Herein, the crosstalk problem of display pixels and color subpixels is solved according to the optical design requirements of a large half-beam angle and highly uniform far-field light distribution to obtain improved display effects. A new chip micro-light emitting diode (LED) + quantum dot (QD) fluorescence mode is presented. The design optical principle uses the Monte Carlo method to prevent the light emitted from the chip from entering the QD film in adjacent pixels. Implementation is achieved by adjusting the distance between the QD film and the chip. The results are obtained by optimizing the distance between the micro-LED and the QD phosphor. When the distance between the QD fluorescent film and the chip is constant, the intensity of the light received by the QD fluorescent film decreases at increasing distances between the subpixel chips, and its contrast increases. The analyzed results suggest that anti-crosstalk micro-LED optical devices can reduce the illuminance on the receiving surface of adjacent pixels to the original 0%. Thus, the crosstalk between display pixels is effectively addressed.