Organic light emitting display (OLED) device and method of fabricating the same
First Claim
1. An organic light emitting display device, comprising:
- a substrate including a pixel region in which a plurality of pixels is arranged, a pad region in which a plurality of pads is arranged to transmit signals received from outside, and a pad interconnection region in which a plurality of pad interconnection lines is arranged to transmit the signals from the pads to the pixels;
a sealing member for sealing the plurality of pixels; and
a sealing material for bonding the substrate and the sealing member;
wherein each of the pixels comprises a thin film transistor disposed on the substrate, an organic electroluminance device including a lower electrode connected to the thin film transistor, a pixel isolation layer exposing a portion of the lower electrode, an organic layer formed on at least the exposed portion of the lower electrode, and an upper electrode;
wherein the pixel isolation layer comprises a laminated structure of a lower layer and an upper layer;
wherein the pad interconnection lines of the pad interconnection region are covered by a first insulating layer, and the pads of the pad region are covered by a second insulating layer so as to expose portions of the pads; and
wherein the first insulating layer and the second insulating layer are formed of a same material as the lower layer of the pixel isolation layer.
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Accused Products
Abstract
An organic light emitting display (OLED) device having a simple process of fabrication and improved lifetime and reliability, and a method of fabricating the same are disclosed. The OLED device comprises: a substrate; a sealing member which seals a plurality of pixels arranged on a pixel region; and a sealing material which bonds the substrate and the sealing member. Each of the pixels includes a thin film transistor disposed on the substrate, an EL device including a lower electrode connected to the thin film transistor, a pixel isolation layer exposing a portion of the lower electrode, an organic layer formed on at least the exposed portion of the lower electrode, and an upper electrode. A pad interconnection line of a pad interconnection region is covered by a first insulating layer, and a pad of a pad region is covered by a second insulating layer so as to expose a portion of the pad. The first insulating layer and the second insulating layer are formed of the same material as a lower layer of the pixel isolation layer.
29 Citations
16 Claims
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1. An organic light emitting display device, comprising:
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a substrate including a pixel region in which a plurality of pixels is arranged, a pad region in which a plurality of pads is arranged to transmit signals received from outside, and a pad interconnection region in which a plurality of pad interconnection lines is arranged to transmit the signals from the pads to the pixels; a sealing member for sealing the plurality of pixels; and a sealing material for bonding the substrate and the sealing member; wherein each of the pixels comprises a thin film transistor disposed on the substrate, an organic electroluminance device including a lower electrode connected to the thin film transistor, a pixel isolation layer exposing a portion of the lower electrode, an organic layer formed on at least the exposed portion of the lower electrode, and an upper electrode; wherein the pixel isolation layer comprises a laminated structure of a lower layer and an upper layer; wherein the pad interconnection lines of the pad interconnection region are covered by a first insulating layer, and the pads of the pad region are covered by a second insulating layer so as to expose portions of the pads; and wherein the first insulating layer and the second insulating layer are formed of a same material as the lower layer of the pixel isolation layer. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of fabricating an organic light emitting display device, the method comprising the steps of:
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preparing a substrate including a pixel region in which a plurality of pixels is arranged, a pad region, and a pad interconnection region; forming a thin film transistor in each of the pixels of the pixel region, forming a pad on the pad region, and forming a pad interconnection line on the pad interconnection region; forming a lower electrode connected to the thin film transistor on the pixel region; forming a pixel isolation layer including a first opening exposing a portion of the lower electrode on the pixel region, forming a first insulating layer on the pad interconnection region so as to insulate the pad interconnection line, and forming a second insulating layer including a second opening exposing a portion of the pad on the pad region so as to insulate the pad using a single mask process; forming an organic layer on an exposed lower electrode of the pixel region; forming an upper electrode on the pixel region; and sealing the plurality of pixels on the substrate by a sealing member using a sealing material; wherein the pixel isolation layer comprises a laminated structure of a lower layer and an upper layer; and wherein the first insulating layer and the second insulating layer are formed of a same material as the lower layer of the pixel isolation layer. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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Specification