US 12,010,798 B2
Flexible display module and manufacturing method thereof
Jiafan Shi, Beijing (CN); Liqiang Chen, Beijing (CN); Changbo Liu, Beijing (CN); Zuojia Wang, Beijing (CN); Qingsong Wang, Beijing (CN); Chao Zhou, Beijing (CN); Yongchun Jiang, Beijing (CN); Qian Yin, Beijing (CN); and Ziqi Song, Beijing (CN)
Assigned to Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Filed by Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Filed on May 30, 2023, as Appl. No. 18/203,593.
Application 18/203,593 is a continuation of application No. 17/539,549, filed on Dec. 1, 2021, granted, now 11,706,872.
Claims priority of application No. 202110126902.X (CN), filed on Jan. 29, 2021; and application No. 202110349782.X (CN), filed on Mar. 31, 2021.
Prior Publication US 2023/0328891 A1, Oct. 12, 2023
Int. Cl. H05K 1/02 (2006.01); G09F 9/30 (2006.01); H05K 1/14 (2006.01); H05K 1/18 (2006.01)
CPC H05K 1/147 (2013.01) [G09F 9/301 (2013.01); H05K 1/0203 (2013.01); H05K 1/028 (2013.01); H05K 1/0298 (2013.01); H05K 1/189 (2013.01); H05K 2201/10128 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A flexible display module, comprising a flexible display panel, and a driving chip and a circuit board on the flexible display panel,
wherein the flexible display panel comprises a display region, a bonding region at a side of the display region opposite to a light-exiting side, and a bending region between the display region and the bonding region;
wherein the driving chip and the circuit board are in the bonding region;
wherein the flexible display module further comprises a flexible substrate supporting the flexible display panel, the flexible substrate comprises a first flexible substrate and a second flexible substrate, the first flexible substrate is coupled to one end of the bending region, and one end of the second flexible substrate is coupled to the other end of the bending region;
wherein the bonding region of the flexible display panel is on the second flexible substrate;
wherein the circuit board comprises a first flexible printed circuit, and a first printed circuit board provided with one or more electronic elements and coupled to one end of the first flexible printed circuit, and the first flexible printed circuit comprises a bonded portion coupled to the bonding region of the flexible display panel;
wherein the first flexible printed circuit is coupled to the other end of the second flexible substrate; and
wherein a first space is defined by the first flexible printed circuit, the first printed circuit board and the second flexible substrate through bending the first flexible printed circuit, and the electronic elements are received in the first space;
wherein the first printed circuit board is at a side of the driving chip away from the flexible display panel, the electronic elements are at a surface of the first printed circuit board facing the flexible display panel, the driving chip is received in the first space, and in the first space, the electronic elements are arranged surrounding the driving chip;
wherein the flexible display module further comprises a first adhesive in the bonding region of the flexible display panel and surrounding the driving chip, and the electronic elements are each adhered to the bonding region of the flexible display panel through the first adhesive.