LED (light-emitting diode) dot matrix display screen
A display screen and LED chip technology, applied in the field of display screens, can solve the problems of poor heat dissipation of LED dot matrix, low luminous efficiency, short heat dissipation path, etc., achieve good heat dissipation effect, save manpower, and high heat dissipation efficiency
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Embodiment 1
[0042] Such as Figures 1 to 3 As shown, an LED dot-matrix display screen includes a display frame 31, a light-transmitting sealing plate 32, a light-transmitting cover 33, a uniform array of LED lamp beads 34, a heat-dissipating PCB substrate 35, and a heat-dissipating substrate 36. The integration of control and drive Circuit components (not shown), a layout circuit conductive layer (not shown) electrically connected to the positive and negative pins of the LED lamp bead 34 , the electric control device 37 , and the data interface 38 . The LED lamp bead 34 is fixed on the heat dissipation PCB substrate 35, the conductive layer of the layout circuit is arranged on the surface of the heat dissipation PCB substrate 35 on which the lamp bead 34 is fixed, and the integrated circuit components are arranged on the heat dissipation PCB substrate 35 and the fixed LED lamp bead 34 phase. back face. The surface of the heat dissipation PCB substrate 35 provided with integrated circuit ...
Embodiment 2
[0046] Such as Figure 4 to Figure 6 As shown, an LED dot-matrix display screen includes a light-transmitting cover 60, a plastic plate 61 for positioning the lens, a PCB board 62, a heat dissipation base 63, a flow channel cover plate 64, an LED light-emitting unit, and a cloth electrically connected to the LED light-emitting unit. The conductive layer of the layout circuit (not shown), the integrated circuit components for control and driving (not shown), the electric control device 65 electrically connected with the external power supply and the conductive layer of the layout circuit, and a data interface 66 . Each LED light-emitting unit includes an LED chip 67, a lens 68, and a gold wire 69 electrically connecting the LED chip 67 and the conductive layer of the layout circuit.
[0047] The heat dissipation base 63 includes a bottom plate 70 , and a plurality of chip fixing bosses 71 protruding from the bottom plate 70 integrally formed with the heat dissipation base 63 , ...
Embodiment 3
[0056] Such as Figure 7 , Figure 8 As shown, the difference from Embodiment 2 is that each LED light-emitting unit includes two LED chips 100 and LED chips 101 of two primary colors, that is, two LED chips 100 of different colors are fixed on each chip fixing boss 102 , LED chips 101 .
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