US 10,475,868 B2 · Flexible organic light emitting diode display having edge bending structure

Abstract

A flexible display device according to an embodiment includes a flexible plate including a display area, a non-display area surrounding the display area, an edge bending area near the display area in the non-display area and a pad area extending from the edge bending area; a first thin film transistor in the display area on the flexible plate; a first line disposed in the edge bending area on the flexible plate; a first buffer layer covering the first line; a second line on the first buffer layer in the edge bending area; a second buffer layer covering the second line; a connecting electrode is electrically connected the first line and the second line in the edge bending area; and a plurality of trenches disposed at the edge bending area and penetrating the second buffer layer and the first buffer layer.

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Drawings

Claims16

Dependent claims

A flexible display device comprising:

a flexible plate including a display area, a non-display area surrounding the display area, an edge bending area in the non-display area and a pad area extending from the edge bending area;
a first thin film transistor in the display area on the flexible plate;
a first line disposed in the edge bending area on the flexible plate;
a first buffer layer covering the first line;
a second line on the first buffer layer in the edge bending area;
a second buffer layer covering the second line;
a connecting electrode electrically connected to the first line and the second line in the edge bending area;
a plurality of trenches disposed at the edge bending area and penetrating the second buffer layer and the first buffer layer;
gate elements disposed on the second buffer layer;
an intermediate insulating layer covering the gate elements;
and
data elements disposed on the intermediate insulating layer, the second buffer layer and the first buffer layer,
wherein the data elements include a same material with the connecting electrode,
wherein the plurality of trenches are selectively formed in the non-display area,
wherein a first electrode of the first thin film transistor is electrically connected to a first metal electrode in the display area,
wherein a second electrode of the first thin film transistor is electrically connected to a second metal electrode in the display area, and
wherein the first and second lines are disposed between two trenches among the plurality of trenches without overlapping with any of the plurality of trenches.

14 more elements

A flexible display device comprising:

a flexible plate including a display area, a non-display area surrounding the display area, an edge bending area in the non-display area and a pad area extending from the edge bending area;
a first thin film transistor in the display area on the flexible plate;
a first line disposed in the edge bending area on the flexible plate;
a first buffer layer covering the first line;
a second line on the first buffer layer in the edge bending area;
a second buffer layer covering the second line;
an intermediate insulating layer on the second buffer layer;
a connecting electrode electrically connected to the first line and the second line in the edge bending area;
a plurality of trenches disposed at the edge bending area and penetrating at least one of the intermediate insulating layer, the second buffer layer and the first buffer layer;
gate elements disposed on the second buffer layer;
an intermediate insulating layer covering the gate elements;
and
data elements disposed on the intermediate insulating layer, the second buffer layer and the first buffer layer,
wherein the data elements include a same material with the connecting electrode,
wherein the plurality of trenches are selectively formed in the non-display area, and
wherein the first and second lines are disposed between two trenches among the plurality of trenches without overlapping with any of the plurality of trenches.

13 more elements

Dependencies are inferred from the claim text.

Description7,459 words

Summary2,656 words

#Field of the Invention

#The present disclosure relates to a flexible flat panel display. Especially, the present disclosure relates to a flexible organic light emitting diode display having edge bending structure.

#Discussion of the Related Art

Brief description of the drawings5 figures

#The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention.

#In the drawings:

#FIG. 1 is a plane view illustrating the structure of an organic light emitting diode display having active switching elements such as thin film transistors according to the related art.

Detailed description4,585 words

#Referring to attached figures, preferred embodiments of the present disclosure will be explained. Like reference numerals designate like elements throughout the detailed description. However, the present disclosure is not restricted by these embodiments but can be applied to various changes or modifications without changing the technical spirit. In the following embodiments, the names of the elements are selected by considering the easiness for explanation so that they may be different from actual names.

#<First Embodiment>

#Referring to FIGS. 3, 4A and 4B, the first embodiment of the present disclosure will be explained. FIG. 3 is a plane view illustrating a structure of a flexible organic light emitting diode display having an edge bending structure according to the present disclosure. FIGS. 4A and 4B are cross sectional views illustrating the structure of a flexible organic light emitting diode display having an edge bending structure along the cutting line of II-II′ in FIG. 3, according to the first embodiment of the present disclosure.

Facts

Application

15/923,792Filed 16 Mar 2018 · continuation

Priority

KR 10-2015-018967530 Dec 2015

Published

US 2018/0204896 A119 Jul 2018

Granted

12 Nov 2019

Term ends

20 Dec 2036

Estimated · how

20 years from earliest known nonprovisional domestic filing plus recorded patent term adjustment. Maintenance-fee lapses, terminal disclaimers and statutory extensions have not been checked. The continuity chain may be incomplete; this is not an enforceability determination.

Classification9 codes

H10K 59/124
Active-matrix OLED [AMOLED] displays: insulating layers formed between TFT elements and OLED elements
H10K 59/1213
Characterised by the geometry or disposition of pixel elements: the pixel elements being TFTs
H10K 59/126
Active-matrix OLED [AMOLED] displays: shielding, e.g. light-blocking means over the TFTs
H10K 59/131
Active-matrix OLED [AMOLED] displays: interconnections, e.g. wiring lines or terminals

Family

Application15/385,430Parent of this continuation · filed 20 Dec 2016

US 2018/0204896 A1Pre-grant publication · published 19 Jul 2018

US 9,954,043 B2Parent of this continuation

US 2017/0194404 A1Published application

US 10,475,868 B2This patent

From the US filing history. Foreign family members aren’t listed.

Flexible organic light emitting diode display having edge bending structure

Life of this patent

Flexible organic light emitting diode display having edge bending structure

Life of this patent

Life of this patent

Abstract

Drawings

Drawings

Claims16

Description7,459 words

Drawings

Classification9 codes

Life of this patent

Description7,459 words