US 12,444,717 B2
Splicing configuration of display devices
Kuang-Pin Chao, Miaoli County (TW); Min-Han Tsai, Miaoli County (TW); and Hao-Jung Huang, Miaoli County (TW)
Assigned to Innolux Corporation, Miaoli County (TW)
Filed by Innolux Corporation, Miaoli County (TW)
Filed on Dec. 22, 2022, as Appl. No. 18/086,685.
Claims priority of provisional application 63/303,034, filed on Jan. 26, 2022.
Claims priority of application No. 202211260926.5 (CN), filed on Oct. 14, 2022.
Prior Publication US 2023/0238366 A1, Jul. 27, 2023
Int. Cl. H01L 29/20 (2006.01); H01L 25/075 (2006.01); H01L 25/13 (2006.01); H01L 33/00 (2010.01); G09F 9/302 (2006.01); G09F 9/33 (2006.01)
CPC H01L 25/13 (2013.01) [H01L 25/0753 (2013.01); G09F 9/3026 (2013.01); G09F 9/33 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A splicing device, having a splicing position, wherein the splicing device comprises:
a first splicing unit, comprising:
a first substrate;
a first light-emitting unit, disposed on the first substrate; and
a second light-emitting unit, disposed on the first substrate and located between the first light-emitting unit and the splicing position, wherein a pitch between the first light-emitting unit and the second light-emitting unit is P; and
a second splicing unit, adjacent to the first splicing unit at the splicing position and comprising:
a second substrate;
a third light-emitting unit, disposed on the second substrate; and
a fourth light-emitting unit, disposed on the second substrate, wherein the third light-emitting unit is located between the splicing position and the fourth light-emitting unit, and a pitch between the third light-emitting unit and the fourth light-emitting unit is also P,
wherein the splicing device satisfies a following formula:

OG Complex Work Unit Math
where LA1 is a horizontal distance from a center of the second light-emitting unit to a first reference plane, the first reference plane is perpendicular to a light-emitting surface of the first splicing unit and passes through an upper edge of the first substrate adjacent to the splicing position, LB3 is a horizontal distance from a boundary between a light-emitting surface of the second splicing unit and a second reference plane to the first reference plane, the second reference plane is perpendicular to the light-emitting surface of the second splicing unit and passes through an upper edge of the second substrate adjacent to the splicing position, LB1x is a horizontal component of a distance from the boundary to a center of the third light-emitting unit, LA2 is a vertical distance from the light-emitting surface of the first splicing unit to a bottom surface of the first substrate, LB2 is a vertical distance from the bottom surface of the first substrate to the boundary, and LB1y is a vertical component of the distance from the boundary to the center of the third light-emitting unit.