Display module including plurality of light-emitting diodes and plurality of pixel circuits
A display module includes a substrate, a first pixel circuit, a first light emitting element, a second pixel circuit and a second light emitting element. The first pixel circuit is configured to control the first light emitting element. The first pixel circuit is located inwardly from an edge of the substrate with respect to the first light emitting element.
1 . A display module comprising:
a substrate on which a plurality of substrate electrode pads are arranged and which includes a plurality of pixel circuits connected with the plurality of substrate electrode pads, wherein the plurality of pixel circuits comprises a first pixel circuit and a second pixel circuit, and wherein the plurality of substrate electrode pads comprises a first substrate electrode pad; and
a plurality of light emitting elements connected to the plurality of substrate electrode pads, the plurality of light emitting elements comprising a first light emitting element, wherein the first light emitting element is electrically connected to the first substrate electrode pad and the first pixel circuit is configured to control the first light emitting element,
wherein the first pixel circuit is closer to a first edge of the substrate than the second pixel circuit, and the first pixel circuit is farther from the first edge of the substrate than is the first light emitting element.
2 . The display module of claim 1 , wherein the substrate comprises:
a plurality of data wirings that are respectively connected electrically to the first pixel circuit, and
wherein the plurality of data wirings are arranged to be farther from the first edge of the substrate than the first light emitting element.
3 . The display module claim 1 , wherein the substrate is a quadrangle comprising the first edge, a second edge, a third edge and a fourth edge.
4 . The display module of claim 1 ,
wherein the substrate comprises the first edge and a second edge, wherein the second edge is opposite to the first edge, and
wherein the plurality of pixel circuits are arranged to be closer to the second edge than the first light emitting element.
5 . The display module of claim 2 , wherein the plurality of substrate electrode pads are respectively electrically connected to corresponding pixel circuits through a plurality of connection wirings.
6 . The display module of claim 5 ,
wherein the substrate comprises a plurality of layers, and
wherein the plurality of data wirings and the plurality of connection wirings are arranged on different layers of the plurality of layers.
7 . The display module of claim 6 , wherein the second pixel circuit is configured to control a second light emitting element among the plurality of lighting elements, wherein the plurality of light emitting elements are arranged uniformly over a surface of the substrate, and the surface extends in a first direction and a second direction perpendicular to the first direction.
8 . The display module of claim 7 , wherein the first edge is susceptible to a physical shock during a manufacturing process, and the first pixel circuit being farther from the first edge of the substrate than is the first light emitting element, is configured to reduce a damage due to the physical shock.
9 . The display module of claim 7 , wherein the first light emitting element, the first pixel circuit, and the second pixel circuit and the second light emitting element are located on the surface defined by the first direction and the second direction at a first location, a second location, and a third location, respectively, wherein the first edge extends in the second direction, and wherein the first pixel circuit is located at the second location inwardly along the first direction from the first location.
10 . The display module of claim 7 , further comprising a display driver integrated circuit (IC), wherein each layer of the plurality of layers extends in the first direction and the second direction, the plurality of layers are stacked in a third direction, the second pixel circuit and the second light emitting element are electrically connected to the display driver IC by a third instance of metal wirings stacked in the third direction and a third connection wiring, the first pixel circuit is electrically connected to the display driver IC by a first instance of metal wirings stacked in the third direction and a first connection wiring of the plurality of connection wirings, and the first light emitting element is connected to the first pixel circuit by the third instance of metal wirings stacked in the third direction and a second connection wiring of the plurality of connection wirings.
11 . The display module of claim 10 , wherein the first connection wiring and the second connection wiring are not in a same layer of the plurality of layers.
12 . The display module of claim 10 , wherein the first connection wiring and the third connection wiring are in a same layer of the plurality of layers.
13 . The display module of claim 10 , wherein the plurality of layers is four.
14 . The display module of claim 1 , wherein the first light emitting element comprises three subpixels, wherein the three subpixels correspond respectively to colors of red, green and blue.
15 . The display module of claim 1 , wherein the first light emitting element comprises four subpixels, wherein the four subpixels correspond respectively to colors of red, green, blue and green.
16 . The display module of claim 14 , wherein the three subpixels comprise a first subpixel, the first subpixel is configured as a microLED, and dimensions of the microLED are 35 micrometers by 25 micrometers.
17 . The display module of claim 7 , wherein the first edge extends in the second direction, a distance from the first light emitting element to the first pixel circuit is 100 micrometers measured along the first direction, and the second light emitting element and the second pixel circuit are located within 10 micrometers of each other measured along the first direction.