| CPC G02B 30/25 (2020.01) [H05K 7/20963 (2013.01)] | 6 Claims |
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1. A single-lamp dual-emission three-dimensional (3D) light emitting diode (LED) display screen, comprising a plurality of LED integrated panels that are distributed uniformly in a horizontal direction and a vertical direction, wherein the plurality of LED integrated panels each are provided with an LED single-lamp array; a heat dissipation housing is provided at a rear side of the LED single-lamp array; an LED heat dissipation structure is provided on a back side of the LED single-lamp array in the heat dissipation housing; a left side and a right side of the heat dissipation housing each are provided with a snap-fit mechanism; the heat dissipation housing is connected to the snap-fit mechanism of an adjacent heat dissipation housing through the snap-fit mechanism; the LED single-lamp array comprises a plurality of LED single lamps that are arranged symmetrically; the plurality of LED single lamps each comprise two LED light emitting pixels that are arranged left and right; the LED light emitting pixels each comprise a yellow LED bead, a green LED bead, and a blue LED bead; a left-right eye retardation film and a polarizing film are correspondingly provided on a front surface of the LED single-lamp array in sequence; a printed circuit board (PCB) is provided on a rear portion of the LED integrated panel; a driver chip is provided on the PCB; and the driver chip is configured to control the corresponding LED light emitting pixel in the LED single-lamp array to emit light according to a preset rule;
wherein the snap-fit mechanism comprises a shell fixed to an inner top wall of the heat dissipation housing; an insert is fixedly provided at an outer end of the shell; the shell is located inside the heat dissipation housing; the insert is located outside the heat dissipation housing; a semi-circular groove is formed at a junction between the insert and the shell; a semi-circular member is rotatably connected in the semi-circular groove; a force rod is fixedly provided on an outer surface of the semi-circular member; and a tension spring is fixedly provided between one side of the force rod and an inner bottom wall of the shell;
wherein a heat-dissipating aluminum plate is fixedly provided on a rear side of the LED single-lamp array; the heat-dissipating aluminum plate is fixed with the shell through a first bolt; an upper portion and a lower portion of each of the left side and the right side of the heat dissipation housing each are provided with a gap matching with the insert; and a cover plate is fixedly provided on a rear side of the heat dissipation housing through a second bolt;
wherein an upper end and a lower end of the heat dissipation housing each are provided with an avoidance notch; and the force rod is located in the corresponding avoidance notch;
wherein the LED heat dissipation structure comprises a heat-dissipating aluminum plate provided at a rear end of the LED integrated panel; a temperature sensing mechanism is provided behind the heat-dissipating aluminum plate; a thermal expansion portion is concentrically provided in the temperature sensing mechanism; the LED heat dissipation structure further comprises a heat dissipation fin adjusting mechanism, a rotary fin, and a stationary fin; and the thermal expansion portion is configured to adjust a contact area between the rotary fin and the stationary fin through the heat dissipation fin adjusting mechanism based on a temperature signal acquired by the temperature sensing mechanism.
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