US 8,300,166 B2 · Display panel and method of manufacturing the same

Abstract

A display panel includes a gate line dividing a pixel region into a first region and a second region and including a gate electrode, a data line crossing the gate line and including a source electrode, a thin film transistor connected to the gate line and the data line and including the gate electrode, the source electrode, and a drain electrode facing the source electrode, a protective layer disposed on the thin film transistor and comprising a first contact hole and a second contact hole, and first and second sub-pixel electrodes disposed on the first and second regions of the divided pixel region, respectively. The drain electrode is directly connected to the first sub-pixel electrode through the first contact hole, and the drain electrode is directly connected to the second sub-pixel electrode through the second contact hole.

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Drawings

Claims4

Dependent claims

A method of manufacturing a display panel, the method comprising:

forming a gate line to divide a pixel region into a first region and a second region;
forming a data line to be insulated from the gate line;
forming a thin film transistor at a crossing of the gate line and the data line, the thin film transistor comprising a drain electrode;
forming a protective layer on the thin film transistor;
forming a first contact hole and a second contact hole penetrating the protective layer;
forming a first sub-pixel electrode on the protective layer and in the first region of the divided pixel region, the first sub-pixel electrode being directly connected to the drain electrode through the first contact hole;
and
forming a second sub-pixel electrode on the protective layer and in the second region of the divided pixel region, the second sub-pixel electrode being directly connected to the drain electrode through the second contact hole,
wherein the first sub-pixel electrode is directly connected to the second sub-pixel electrode via the drain electrode,
wherein the forming the gate line comprises forming a gate electrode connected to the gate line, forming a storage line parallel to the gate line, and forming a storage electrode protruding from the storage line,
wherein the forming the thin film transistor comprises forming an active layer overlapping with the gate electrode, forming a source electrode connected to the data line and one side of the active layer, and forming the drain electrode to face the source electrode, and
wherein the forming the active layer further comprises forming an active extension portion extending from the active layer and overlapping with the storage electrode.

9 more elements

Dependencies are inferred from the claim text.

Description4,142 words

Summary875 words

#This application claims priority from and the benefit of Korean Patent Application No. 10-2007-0127685, filed on Dec. 10, 2007, which is hereby incorporated by reference for all purposes as if fully set forth herein.

#1. Field of the Invention

#The present invention relates to a display panel and a method of manufacturing the display panel and, more particularly, to a multi-domain display panel that may have an increased aperture ratio and improved yield and performance, and a method of manufacturing the same.

Brief description of the drawings3 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.

#FIG. 1 is a plan view of a liquid crystal display (LCD) panel in accordance with an exemplary embodiment of the present invention.

#FIG. 2 is a cross-sectional view taken along lines I-I′ and II-II′ of the LCD panel of FIG. 1.

Detailed description3,148 words

#The invention is described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure is thorough, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. Like reference numerals in the drawings denote like elements.

#It will be understood that when an element or layer is referred to as being “on” or “connected to” another element or layer, it can be directly on or directly connected to the other element or layer, or intervening elements or layers may be present. In contrast, when an element is referred to as being “directly on” or “directly connected to” another element or layer, there are no intervening elements or layers present.

#FIG. 1 is a plan view of a liquid crystal display (LCD) panel in accordance with an exemplary embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along lines I-I′ and II-II′ of the LCD panel of FIG. 1.

Facts

Application

12/249,834Filed 10 Oct 2008

Priority

KR 10-2007-012768510 Dec 2007

Published

US 2009/0147165 A111 Jun 2009

Granted

30 Oct 2012

Term ends

3 Jun 2031

Estimated · how

20 years from earliest known nonprovisional domestic filing plus recorded patent term adjustment, including 966 days of 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.

Classification7 codes

H10D 86/60
Characterised by multiple TFTs: wherein the TFTs are in active matrices
H10D 86/441
Characterised by multiple TFTs: interconnections, e.g. scanning lines
H10D 86/481
Characterised by multiple TFTs: integrated with passive devices, e.g. auxiliary capacitors
G02F 1/1368
Active matrix addressed cells: in which the switching element is a three-electrode device

Timeline

10 Dec 2007Priority claimedKR 10-2007-0127685
10 Oct 2008Application filedUS 12/249,834
15 Oct 2008Assigned to Samsung Electronics Co., Ltd.assignment of assignor's interest
11 Jun 2009PublishedUS 2009/0147165 A1
28 Aug 2012Assigned to Samsung Display Co., Ltd.change of name
30 Oct 2012GrantedUS 8,300,166 B2
12 Oct 2026TodayWithin its term
3 Jun 2031Term endsEstimated, includes 966 days of adjustment

Display panel and method of manufacturing the same

Life of this patent

Display panel and method of manufacturing the same

Life of this patent

Life of this patent

Abstract

Drawings

Drawings

Claims4

Description4,142 words

Drawings

Classification7 codes

Life of this patent

Description4,142 words