US 12,295,244 B2
Display apparatus, structure and manufacturing apparatus of flexible display apparatus
IkHyun Kuon, Paju-si (KR); Yongsoo Kim, Paju-si (KR); SangEun Han, Paju-si (KR); SungNam Byun, Paju-si (KR); JeongKweon Park, Paju-si (KR); SangGul Lee, Paju-si (KR); Changmin Pyo, Paju-si (KR); Doowon Seo, Paju-si (KR); Bogyung Kang, Paju-si (KR); Sungwook Park, Paju-si (KR); Juyeob Lee, Paju-si (KR); YongMin Ha, Paju-si (KR); SoonBum Shin, Paju-si (KR); MoonGoo Kim, Paju-si (KR); Chan Park, Paju-si (KR); and YunMi Lee, Paju-si (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on Mar. 28, 2022, as Appl. No. 17/706,148.
Application 17/706,148 is a continuation of application No. 16/709,569, filed on Dec. 10, 2019, granted, now 11,316,139.
Claims priority of application No. 10-2018-0167954 (KR), filed on Dec. 21, 2018.
Prior Publication US 2022/0216452 A1, Jul. 7, 2022
Int. Cl. H10K 71/00 (2023.01); G06F 1/16 (2006.01); H10K 50/842 (2023.01); H10K 77/10 (2023.01)
CPC H10K 71/00 (2023.02) [G06F 1/1609 (2013.01); G06F 1/1652 (2013.01); H10K 50/8426 (2023.02); H10K 77/111 (2023.02)] 23 Claims
OG exemplary drawing
 
1. A display apparatus comprising:
a flexible display panel, wherein the flexible display panel comprises:
a cover window having a curved portion;
a flexible substrate including a first display portion including a flat display portion, and a second display portion including a first bending display portion and a second bending display portion,
a pixel array portion including a plurality of pixels having a driving thin film transistor including a gate electrode, a gate insulating film, a semiconductor layer, a source electrode, a drain electrode, an anode electrode electrically connected to the driving thin film transistor, a light emitting diode layer on the anode electrode, and a cathode electrode electrically connected to the light emitting diode layer;
an encapsulation portion disposed on the flexible substrate, the encapsulation portion surrounding the pixel array portion;
a touch electrode portion disposed on the encapsulation portion, the touch electrode portion configured as a touch sensor;
a functional film including a circular polarizer configured to block reflected light traveling toward the cover window;
a back plate configured to maintain a rear surface of the flexible substrate overlapping the pixel array portion in a flat state;
a heat dissipating sheet portion attached to an entirety of a rear surface of the back plate, the heat dissipating sheet portion including a metal layer;
a middle frame supporting the cover window and disposed on a side of the display apparatus; and
a back cover covering a rear surface of the middle frame,
wherein the touch electrode portion includes a touch electrode layer arranged on the encapsulation portion, and a dielectric layer covering the touch electrode layer.