US 12,262,474 B2
Display panel and method for assembling same and spliced display device
Kanmeng Wang, Guangdong (CN)
Assigned to Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Shenzhen (CN)
Appl. No. 17/600,310
Filed by Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Guangdong (CN)
PCT Filed Jul. 29, 2021, PCT No. PCT/CN2021/109157
§ 371(c)(1), (2) Date Dec. 8, 2022,
PCT Pub. No. WO2022/252375, PCT Pub. Date Dec. 8, 2022.
Claims priority of application No. 202110598191.6 (CN), filed on May 31, 2021.
Prior Publication US 2024/0023247 A1, Jan. 18, 2024
Int. Cl. H05K 1/18 (2006.01); H01L 23/13 (2006.01); H01L 23/498 (2006.01); H05K 1/14 (2006.01); H05K 3/00 (2006.01)
CPC H05K 1/189 (2013.01) [H01L 23/13 (2013.01); H01L 23/4985 (2013.01); H05K 1/147 (2013.01); H05K 3/0058 (2013.01); H05K 2201/056 (2013.01); H05K 2201/10128 (2013.01); H05K 2201/10136 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display panel, comprising:
a back panel;
a display portion, disposed on the back panel;
a binding portion, located on a side of the display portion and disposed on the back panel; and
a flexible base plate, comprising a first end portion, a second end portion, and a bent portion connecting the first end portion to the second end portion, wherein the first end portion is bound to the binding portion, and the second end portion is fixedly disposed on a side of the back panel that is away from the display portion;
the bent portion comprises an inflection point, and a tangent line passing through the inflection point is perpendicular to a plane where the binding portion is located; and
in an extending direction of the bent portion, a length from the inflection point to the first end portion is less than a length from the inflection point to the second end portion.
 
10. A spliced display device, wherein a plurality of display panels are spliced, and each display panel comprises:
a back panel;
a display portion, disposed on the back panel;
a binding portion, located on a side of the display portion and disposed on the back panel; and
a flexible base plate, comprising a first end portion, a second end portion, and a bent portion connecting the first end portion to the second end portion, wherein the first end portion is bound to the binding portion, and the second end portion is fixedly disposed on a side of the back panel that is away from the display portion;
the bent portion comprises an inflection point, and a tangent line passing through the inflection point is perpendicular to a plane where the binding portion is located; and
in an extending direction of the bent portion, a length from the inflection point to the first end portion is less than a length from the inflection point to the second end portion.
 
18. A method for assembling a display panel, the method comprising:
step B1: providing a to-be-bent display panel, wherein the to-be-bent display panel comprises a back panel, a main display body, a flexible base plate, and a printed circuit board, the main display body is disposed on the back panel, one end of the flexible base plate is bound to the main display body, and an other end of the flexible base plate is bound to the printed circuit board;
step B2: bending the flexible base plate, so that the printed circuit board is folded to a side of the back panel that is away from the main display body; and squeezing the bent flexible base plate using a first limiting plate of a limiting assembly, and squeezing a side of the back panel that is away from the flexible base plate using a second limiting plate of the limiting assembly, so as to limit a bending distance of the flexible base plate;
step B3: pulling the printed circuit board, so that the flexible base plate enters a tightened state under a pulling force;
step B4: fixing the printed circuit board to the back panel, wherein the flexible base plate is still in the tightened state; and
step B5: separating the display panel from the limiting assembly.