An electrostatic discharge protection circuit, a display substrate and a display apparatus are disclosed. The electrostatic discharge protection circuit includes: a first conductive portion, having an end portion; and at least one electrostatic discharge portion, arranged on a same layer as the first conductive portion and spaced from the end portion of the first conductive portion, the at least one electrostatic discharge portion being configured to discharge electrostatic charges generated at the end portion of the first conductive portion.

An electronic device includes a chassis, a back plate, a bracket, and a biological characteristic recognition module. The back plate is fixed to a chassis and has a first through hole. The bracket is fixed to a side of the back plate away from the chassis. The bracket has an accommodating slot recessed away from the chassis. The biological characteristic recognition module is located in the first through hole. The biological characteristic recognition module is abutted between the bracket and the chassis. The biological characteristic recognition module has at least one electronic component. The electronic component is accommodated in the accommodating slot.

Systems and methods are provided for cover plates for printheads. One embodiment is an apparatus that includes a cover plate for a printhead. The cover plate includes multiple layers of electrically conductive material, a layer of nonconductive ferrite that is sandwiched between the multiple layers, and at least one connector that penetrates through the multiple layers and the layer of nonconductive ferrite to form a conductive pathway for electric current between the multiple layers through the layer of nonconductive ferrite. The cover plate also includes at least one opening that penetrates through the multiple layers and the layer of nonconductive ferrite, and that is configured to align with nozzles of the printhead.

The present invention provides a fingerprint detection device, including: a substrate, a switch circuit layer, a sensing electrode layer, a heat dissipating antistatic structure layer, and a protective layer. The switch circuit layer is disposed on the substrate. The sensing electrode layer is disposed on the switch circuit layer, and includes a plurality of sensing electrodes. The heat dissipating antistatic structure layer is disposed on the sensing electrode layer, and includes a conductive mesh and a plurality of shunt heat sinks. The conductive mesh is formed with a plurality of mesh openings, and configured to shunt charges. The shunt heat sinks are adjacent to the conductive mesh, and correspond to the sensing electrodes. The shunt heat sinks are electrically insulated from each other, electrically insulated from the conductive mesh, and electrically insulated from the sensing electrodes. The protective layer is disposed on the heat dissipating antistatic structure layer.

A display device includes a substrate including a display area and a peripheral area disposed around the display area, a pad area disposed near an edge of the substrate, and a plurality of pads disposed in the pad area and arranged along the edge of the substrate. An end of a first pad, which is an outermost pad among the plurality of pads, is connected to a first end of a resistor. The first pad is disposed between the resistor and the edge of the substrate, and a second end of the resistor is connected to a wire.

The present invention provides a fingerprint detection device, including: a substrate, a switch circuit layer, a sensing electrode layer, a heat dissipating antistatic structure layer, and a protective layer. The switch circuit layer is disposed on the substrate. The sensing electrode layer is disposed on the switch circuit layer, and includes a plurality of sensing electrodes. The heat dissipating antistatic structure layer is disposed on the sensing electrode layer, and includes a conductive mesh and a plurality of shunt heat sinks. The conductive mesh is formed with a plurality of mesh openings, and configured to shunt charges. The shunt heat sinks are adjacent to the conductive mesh, and correspond to the sensing electrodes. The shunt heat sinks are electrically insulated from each other, electrically insulated from the conductive mesh, and electrically insulated from the sensing electrodes. The protective layer is disposed on the heat dissipating antistatic structure layer.

An ESD protection device includes a communication cable and an ESD cable. An end of the communication cable is connected to an electronic device. The ESD cable is connected to the communication cable and configured to discharge static electricity of the electronic device through the communication cable. A first end of the ESD cable is connected to the communication cable, and a second end of the ESD cable is connected to the electronic device.

A power conversion device includes a first stage, a second stage, a first electric field relaxation shield unit, a second electric field relaxation shield unit, and a plurality of stage posts. The first electric field relaxation shield unit is arranged to surround outer periphery of the first stage. The second electric field relaxation shield unit is arranged to surround outer periphery of the second stage. The plurality of stage posts connect the first stage and the second stage. The plurality of stage posts have outer peripheral surfaces formed of insulating bodies. Power conversion units loaded on the first stage are arranged inside a columnar region which includes at least some of the plurality of stage posts as sides.

Method and apparatus for mobile management and dispersion of static electricity which has accumulated upon a human being are disclosed. FIGS. 1 through 5 depict technical features which enable mobile, untethered, convenient, aesthetic, informative, and comfortable dispersion of static electricity, resulting in reduced physical pain, automated signaling of discharge characteristics, stylish adornments, and ease of use by the operator.

An electronic device includes a chassis, a back plate, a bracket, and a biological characteristic recognition module. The back plate is fixed to a chassis and has a first through hole. The bracket is fixed to a side of the back plate away from the chassis. The bracket has an accommodating slot recessed away from the chassis. The biological characteristic recognition module is located in the first through hole. The biological characteristic recognition module is abutted between the bracket and the chassis. The biological characteristic recognition module has at least one electronic component. The electronic component is accommodated in the accommodating slot.