公开(公告)号：US11196011B2

公开(公告)日：2021-12-07

申请号：US15476812

申请日：2017-03-31

Applicant: Apple Inc.

Inventor： Zhen Zhang ,  Yi Tao ,  Paul S. Drzaic ,  Joshua G. Wurzel

IPC: H01L51/00 ,  H01L23/498 ,  H01L23/538 ,  H01L27/32 ,  H01L51/52

Abstract: A display may have an array of organic light-emitting diodes that form an active area on a flexible substrate. Metal traces may extend between the active area and an inactive area of the flexible substrate. Display driver circuitry such as a display driver integrated circuit may be coupled to the inactive area. The metal traces may extend across a bend region in the flexible substrate. The flexible substrate may be bent in the bend region. The flexible substrate may be made of a thin flexible material to reduce metal trace bending stress. A coating layer in the bend region may be provided with an enhanced elasticity to allow its thickness to be reduced. The flexible substrate may be bent on itself and secured within an electronic device without using a mandrel.

公开(公告)号：US11223020B2

公开(公告)日：2022-01-11

申请号：US15476812

申请日：2017-03-31

Applicant: Apple Inc.

Inventor： Zhen Zhang ,  Yi Tao ,  Paul S. Drzaic ,  Joshua G. Wurzel

IPC: H01L51/00 ,  H01L23/498 ,  H01L23/538 ,  H01L27/32 ,  H01L51/52

Abstract: A display may have an array of organic light-emitting diodes that form an active area on a flexible substrate. Metal traces may extend between the active area and an inactive area of the flexible substrate. Display driver circuitry such as a display driver integrated circuit may be coupled to the inactive area. The metal traces may extend across a bend region in the flexible substrate. The flexible substrate may be bent in the bend region. The flexible substrate may be made of a thin flexible material to reduce metal trace bending stress. A coating layer in the bend region may be provided with an enhanced elasticity to allow its thickness to be reduced. The flexible substrate may be bent on itself and secured within an electronic device without using a mandrel.

公开(公告)号：US09773853B2

公开(公告)日：2017-09-26

申请号：US14860546

申请日：2015-09-21

Applicant: Apple Inc.

Inventor： Yi Tao ,  Zhen Zhang ,  MinKyu Kim ,  Jae Won Choi ,  Young Bae Park ,  Joshua G. Wurzel ,  Paul S. Drzaic ,  Shih Chang Chang

IPC: H01L27/32 ,  H01L51/00 ,  H01L25/16 ,  H01L51/52 ,  H01L51/56

CPC classification number: H01L27/3276 ,  H01L25/167 ,  H01L27/3246 ,  H01L27/3258 ,  H01L27/3297 ,  H01L51/0097 ,  H01L51/5253 ,  H01L51/56 ,  H01L2227/323 ,  H01L2251/5338 ,  Y02E10/549

Abstract: A display may have an array of organic light-emitting diodes that form an active area on a flexible substrate. Metal traces may extend between the active area and an inactive area of the flexible substrate. Display driver circuitry such as a display driver integrated circuit may be attached to a flexible printed circuit that is attached to the flexible substrate in the inactive area. The metal traces may extend across a bend region in the flexible substrate. The flexible substrate may be bent in the bend region. The flexible substrate may be locally thinned in the bend region. A neutral stress plane adjustment layer may cover the metal traces in the bend region. The neutral stress plane adjustment layer may include polymer layers such as an encapsulation layer, a pixel definition layer, a planarization layer, and a layer that covers a pixel definition layer and planarization layer.

公开(公告)号：US09600112B2

公开(公告)日：2017-03-21

申请号：US14511945

申请日：2014-10-10

Applicant: Apple Inc.

Inventor： Zhen Zhang ,  Paul S. Drzaic ,  Yi Tao

IPC: H05K1/02 ,  H05K1/03 ,  G06F1/16 ,  G06F3/041

CPC classification number: G06F3/0412 ,  G06F1/169 ,  G06F2203/04102 ,  H05K1/028 ,  H05K1/0281 ,  H05K1/0296 ,  H05K1/0393 ,  H05K2201/09263 ,  H05K2201/09663 ,  H05K2201/09672 ,  H05K2201/0979 ,  H05K2201/10106

Abstract: A flexible substrate may have one or more bends. A bend in a flexible substrate may be made along a bend axis. Conductive traces in the flexible substrate may have elongated shapes. Each conductive trace may extend along a longitudinal axis that is perpendicular to the bend axis. Metal or other conductive materials may form the conductive traces. The traces may be formed from a chain of linked segments. Each segment may have patterned trace portions that surround one, two, or more than two openings. Traces may also be formed that have multiple layers of metal or other conductive material interconnected using vias. A polymer layer may cover the traces to align a neutral stress plane with the traces and to serve as a moisture barrier layer.

公开(公告)号：US20160329386A1

公开(公告)日：2016-11-10

申请号：US15091333

申请日：2016-04-05

Applicant: Apple Inc.

Inventor： Jason C. Sauers ,  Jean-Pierre S. Guillou ,  Peter J. Kardassakis ,  Shaowei Qin ,  Yi Tao

IPC: H01L27/32 ,  H01L51/56 ,  H01L51/00 ,  H01L51/52

CPC classification number: H01L51/0097 ,  H01L27/3276 ,  H01L51/56 ,  Y02E10/549

Abstract: A thin-film transistor layer, an organic light-emitting diode layer, and other layers may be used in forming an array of pixels on a substrate in a display. Vias may be formed through one or more layers of the display such as the substrate layer to form vertical signal paths. The vertical signal paths may convey signals between display driver circuitry underneath the display and the pixels. The vias may pass through a polymer layer and may contact pads formed within openings in the substrate. Vias may pass through a glass support layer. Metal traces may be formed in the thin-film transistor layer to create signal paths such as data lines and gate lines. Portions of the metal traces may form vias through a polymer layer such as a substrate layer or a polymer layer that has been formed on top of the substrate layer.

Abstract translation: 可以使用薄膜晶体管层，有机发光二极管层等层来形成显示器中的基板上的像素阵列。 可以通过诸如衬底层的显示器的一个或多个层来形成通孔，以形成垂直信号路径。 垂直信号路径可以在显示器下方的显示驱动器电路和像素之间传送信号。 通孔可以穿过聚合物层并且可以接触形成在基底中的开口内的垫。 通孔可以通过玻璃支撑层。 可以在薄膜晶体管层中形成金属迹线以产生诸如数据线和栅极线的信号路径。 金属迹线的一部分可以通过聚合物层形成通孔，例如基底层或已形成在基底层顶部上的聚合物层。

公开(公告)号：US20160204183A1

公开(公告)日：2016-07-14

申请号：US14860546

申请日：2015-09-21

Applicant: Apple Inc.

Inventor： Yi Tao ,  Zhen Zhang ,  MinKyu Kim ,  Jae Won Choi ,  Young Bae Park ,  Joshua G. Wurzel ,  Paul S. Drzaic ,  Shih Chang Chang

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/56 ,  H01L25/16

CPC classification number: H01L27/3276 ,  H01L25/167 ,  H01L27/3246 ,  H01L27/3258 ,  H01L27/3297 ,  H01L51/0097 ,  H01L51/5253 ,  H01L51/56 ,  H01L2227/323 ,  H01L2251/5338 ,  Y02E10/549

Abstract: A display may have an array of organic light-emitting diodes that form an active area on a flexible substrate. Metal traces may extend between the active area and an inactive area of the flexible substrate. Display driver circuitry such as a display driver integrated circuit may be attached to a flexible printed circuit that is attached to the flexible substrate in the inactive area. The metal traces may extend across a bend region in the flexible substrate. The flexible substrate may be bent in the bend region. The flexible substrate may be locally thinned in the bend region. A neutral stress plane adjustment layer may cover the metal traces in the bend region. The neutral stress plane adjustment layer may include polymer layers such as an encapsulation layer, a pixel definition layer, a planarization layer, and a layer that covers a pixel definition layer and planarization layer.

Abstract translation: 显示器可以具有在柔性基板上形成有源区域的有机发光二极管阵列。 金属迹线可以在有源区域和柔性基板的无效区域之间延伸。 诸如显示驱动器集成电路的显示器驱动器电路可以附接到在非活动区域中附接到柔性基板的柔性印刷电路。 金属迹线可以延伸穿过柔性基板中的弯曲区域。 柔性基板可以在弯曲区域中弯曲。 柔性基板可以在弯曲区域局部变薄。 中性应力平面调整层可以覆盖弯曲区域中的金属迹线。 中性应力平面调整层可以包括聚合物层，例如封装层，像素定义层，平坦化层和覆盖像素限定层和平坦化层的层。

公开(公告)号：US10170711B2

公开(公告)日：2019-01-01

申请号：US15091333

申请日：2016-04-05

Applicant: Apple Inc.

Inventor： Jason C. Sauers ,  Jean-Pierre S. Guillou ,  Peter J. Kardassakis ,  Shaowei Qin ,  Yi Tao

IPC: H01L27/32 ,  H01L51/00 ,  H01L51/56

Abstract: A thin-film transistor layer, an organic light-emitting diode layer, and other layers may be used in forming an array of pixels on a substrate in a display. Vias may be formed through one or more layers of the display such as the substrate layer to form vertical signal paths. The vertical signal paths may convey signals between display driver circuitry underneath the display and the pixels. The vias may pass through a polymer layer and may contact pads formed within openings in the substrate. Vias may pass through a glass support layer. Metal traces may be formed in the thin-film transistor layer to create signal paths such as data lines and gate lines. Portions of the metal traces may form vias through a polymer layer such as a substrate layer or a polymer layer that has been formed on top of the substrate layer.

公开(公告)号：US20170263873A1

公开(公告)日：2017-09-14

申请号：US15476812

申请日：2017-03-31

Applicant: Apple Inc.

Inventor： Zhen Zhang ,  Yi Tao ,  Paul S. Drzaic ,  Joshua G. Wurzel

IPC: H01L51/00 ,  H01L23/498 ,  H01L23/538 ,  H01L51/52 ,  H01L27/32

CPC classification number: H01L51/0097 ,  H01L23/4985 ,  H01L23/5387 ,  H01L27/326 ,  H01L27/3276 ,  H01L51/004 ,  H01L51/5253 ,  H01L2251/5338 ,  H01L2251/558 ,  Y02E10/549

Abstract: A display may have an array of organic light-emitting diodes that form an active area on a flexible substrate. Metal traces may extend between the active area and an inactive area of the flexible substrate. Display driver circuitry such as a display driver integrated circuit may be coupled to the inactive area. The metal traces may extend across a bend region in the flexible substrate. The flexible substrate may be bent in the bend region. The flexible substrate may be made of a thin flexible material to reduce metal trace bending stress. A coating layer in the bend region may be provided with an enhanced elasticity to allow its thickness to be reduced. The flexible substrate may be bent on itself and secured within an electronic device without using a mandrel.

公开(公告)号：US09614168B2

公开(公告)日：2017-04-04

申请号：US14987129

申请日：2016-01-04

Applicant: Apple Inc.

Inventor： Zhen Zhang ,  Yi Tao ,  Paul S. Drzaic ,  Joshua G. Wurzel

IPC: H01L27/32 ,  H01L51/00 ,  H01L23/498 ,  H01L23/538 ,  H01L51/52

CPC classification number: H01L51/0097 ,  H01L23/4985 ,  H01L23/5387 ,  H01L27/326 ,  H01L27/3276 ,  H01L51/004 ,  H01L51/5253 ,  H01L2251/5338 ,  H01L2251/558 ,  Y02E10/549

Abstract: A display may have an array of organic light-emitting diodes that form an active area on a flexible substrate. Metal traces may extend between the active area and an inactive area of the flexible substrate. Display driver circuitry such as a display driver integrated circuit may be coupled to the inactive area. The metal traces may extend across a bend region in the flexible substrate. The flexible substrate may be bent in the bend region. The flexible substrate may be made of a thin flexible material to reduce metal trace bending stress. A coating layer in the bend region may be provided with an enhanced elasticity to allow its thickness to be reduced. The flexible substrate may be bent on itself and secured within an electronic device without using a mandrel.

公开(公告)号：US20160204366A1

公开(公告)日：2016-07-14

申请号：US14987129

申请日：2016-01-04

Applicant: Apple Inc.

Inventor： Zhen Zhang ,  Yi Tao ,  Paul S. Drzaic ,  Joshua G. Wurzel

IPC: H01L51/00 ,  H01L51/52 ,  H01L27/32

CPC classification number: H01L51/0097 ,  H01L23/4985 ,  H01L23/5387 ,  H01L27/326 ,  H01L27/3276 ,  H01L51/004 ,  H01L51/5253 ,  H01L2251/5338 ,  H01L2251/558 ,  Y02E10/549

Abstract: A display may have an array of organic light-emitting diodes that form an active area on a flexible substrate. Metal traces may extend between the active area and an inactive area of the flexible substrate. Display driver circuitry such as a display driver integrated circuit may be coupled to the inactive area. The metal traces may extend across a bend region in the flexible substrate. The flexible substrate may be bent in the bend region. The flexible substrate may be made of a thin flexible material to reduce metal trace bending stress. A coating layer in the bend region may be provided with an enhanced elasticity to allow its thickness to be reduced. The flexible substrate may be bent on itself and secured within an electronic device without using a mandrel.

Abstract translation: 显示器可以具有在柔性基板上形成有源区域的有机发光二极管阵列。 金属迹线可以在有源区域和柔性基板的无效区域之间延伸。 诸如显示驱动器集成电路的显示器驱动器电路可以耦合到非活动区域。 金属迹线可以延伸穿过柔性基板中的弯曲区域。 柔性基板可以在弯曲区域中弯曲。 柔性基板可以由薄的柔性材料制成以减少金属迹线弯曲应力。 弯曲区域中的涂层可以具有增强的弹性以允许其厚度减小。 柔性基板可以在其自身上弯曲并固定在电子设备中而不使用心轴。