A circuit board for a light-emitting diode assembly includes a substrate layer, a dimming zone column disposed on one surface of the substrate layer, the dimming zone column including dimming zones, each of the dimming zones including a predetermined number of LED landing pads. The dimming zones includes a predetermined number of first dimming zones and a predetermined number of second dimming zones, a first common wiring commonly connected to the first dimming zones and disposed at a first lateral side in a row direction of the dimming zone column, a second common wiring connected to the second dimming zones and disposed at a second lateral side in the row direction opposite to the first lateral side of the dimming zone column, and an individual wiring connected to each of the dimming zones.

A circuit board for a light-emitting diode assembly according to an embodiment includes a substrate layer, dimming zones formed on one surface of the substrate layer, each of the dimming zones comprising a predetermined number of LED landing pads, and a wiring bundle disposed between the dimming zones neighboring in a row direction to extend in a column direction, the wiring bundle including wirings connected to the LED landing pads at the same level.

A circuit board for a light-emitting diode assembly according to an embodiment includes a substrate layer having a first surface and a second surface facing each other, a conductive circuit layer disposed on the first surface of the substrate layer and having a single-layered structure, and an insulating layer formed on the first surface of the substrate layer to cover the conductive circuit layer. Channel resistance, luminous efficiency and luminous uniformity can be improved through a side connection of a dimming zone while vias or contacts are omitted.

A backlight apparatus includes a circuit board, a control board, and a connection cable connecting the above components. A first light source driver and a second light source driver are disposed on the circuit board and are electrically connected to a plurality of first light sources and a plurality of second light sources respectively. A connector is disposed on the circuit board. The first and second light source drivers are individually electrically coupled in series to the connector. The control board outputs electrical power, a first data stream, and a second data stream. The first light source driver controls the first light sources to light individually according to the first data stream. The second light source driver controls the second light sources to light individually according to the second data stream. Thereby, the circuit board can control the operation of the light sources individually.

A backplane and a glass-based circuit board. The backplane includes: a base substrate and a plurality of light-emitting units, arranged in an array on the base substrate. Each of the light-emitting units includes at least one light-emitting sub-unit; the light-emitting sub-unit includes a connection line and a plurality of light-emitting diode chips connected with the connection line, and the light-emitting diode chips are located on a side of the connection line away from the base substrate. The connection line comprises a first connection portion, a second connection portion and a third connection portion; in each of the light-emitting sub-units, the third connection portion comprises a plurality of connection sub-portions, each of the connection sub-portions comprise at least one electrical contact point; the electrical contact points at adjacent ends of adjacent connection sub-portions constitute an electrical contact point pair.

A method of manufacturing a planar light source includes: providing a wiring substrate; locating a light guide plate on a first principal face of the wiring substrate, wherein the light guide plate includes a plurality of unit regions arranged in one dimension or two dimensions, and a plurality of through holes that are open at the a principal face and a second principal face of the light guide plate, wherein at least one of the through holes is located in the unit regions; locating light sources in the through holes in the unit regions on the first principal face of the wiring substrate; locating a first light transmissive member in a first of the through holes; and locating a second light transmissive member in the first through hole.

A light-emitting substrate and a display device are provided. Each light-emitting unit includes a first voltage terminal. The first voltage line includes a first portion, a first connecting portion, and a second portion. The first portion is electrically connected with first voltage terminals of a first row to a Y-th row of light-emitting units in a corresponding column. An extension direction of a second portion of the first voltage line has an included angle with both the first direction and the second direction. The first connecting portion is at boundary of the Y-th row and a (Y+1)-th row of light-emitting units. The first transmission line is electrically connected with first voltage terminals of the (Y+1)-th row to an N-th row of light-emitting units in a corresponding column, and is electrically connected with the first connecting portion of the first voltage line corresponding to light-emitting units of a corresponding column.

The present invention relates to a dimming unit including: a dimming panel; and drive circuitry, the dimming panel sequentially including a first substrate, a liquid crystal layer, and a second substrate, the first substrate sequentially including an insulating substrate, a lower-layer electrode, a first insulating layer, multiple first electrodes, a second insulating layer, and a second electrode which is provided with multiple parallel linear electrodes and to which a constant voltage is applied, the first electrodes including multiple island electrodes which are spaced from each other in a plan view and are electrically connected to each other, at least one of the island electrodes being electrically connected to the lower-layer electrode through a contact hole, the drive circuitry controlling voltages applied to the respective first electrodes.

Provided is a display apparatus including a liquid crystal panel, a substrate, a light source module disposed on the substrate, and a control assembly configured to control the light source module and the liquid crystal panel. The light source module includes a light emitting diode disposed on the substrate, a feed pad provided on the substrate, and at least one antistatic pad provided on the substrate.

The present disclosure provides an electronic device including a driving circuit substrate, a plurality of chips, and a passivation layer. The driving circuit substrate includes a plurality of active elements. The chips are disposed on the driving circuit substrate and electrically connected to the driving circuit substrate. The passivation layer covers the plurality of chips and the driving circuit substrate. The passivation layer has a first part on one of the plurality of chips and a second part on a part of the driving circuit substrate, the second part is not overlapped with the plurality of chips, and a first thickness of the first part is less than a second thickness of the second part. The first space between adjacent two of the plurality of chips is different from a second space between another adjacent two of the plurality of chips.