Patent ID: 11960167
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A backplane, comprising:
a substrate including a circuit structure layer and a second reflective layer;, a first reflective layer disposed on a bearing surface of the substrate, the first reflective layer including a plurality of through holes spaced apart;
a plurality of light-emitting diode chips, a light-emitting diode chip in the plurality of light-emitting diode chips being located in one of the plurality of through holes, the plurality of light-emitting diode chips being electrically connected to the circuit structure layer, the circuit structure layer being configured to drive the plurality of light-emitting diode chips to emit light; and
a plurality of optical structures, an optical structure in the plurality of optical structures covering the light-emitting diode chip in the plurality of light-emitting diode chips, a light incident surface of the optical structure being in contact with a light exit surface of the light-emitting diode chip, and a light exit surface of the optical structure being a curved surface,
wherein the first reflective laver, the second reflective layer and the circuit structure layer are disposed in respective different lavers; and the second reflective layer and the circuit structure layer are located on a same side of the first reflective layer,
wherein the second reflective layer is located on a side of the circuit structure layer proximate to the first reflective laver; the second reflective layer includes a plurality of hollow-out portions; the circuit structure layer includes a plurality of pads; a hollow-out portion in the plurality of hollow-out portions exposes at least one of the plurality of pads; and a single light-emitting diode chip is electrically connected to two of the plurality of pads; or
wherein the second reflective layer is located on a side of the circuit structure layer away from the first reflective layer; the circuit structure layer has a plurality of metal wiring regions and a plurality of light-transmitting regions, a light-transmitting region being located between two adjacent metal wiring regions; the circuit structure layer includes a plurality of pads; a metal wiring region is provided with pads therein; a single light-emitting diode chip is electrically connected to two of the pads in the metal wiring: region; and the light-transmitting region is configured to transmit a portion of light emitted by the light-emitting diode chip and reflected by the second reflective layer.