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US20080088757A1 - Liquid crystal display panel - Google Patents

Liquid crystal display panel Download PDF

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Publication number
US20080088757A1
US20080088757A1 US11/682,262 US68226207A US2008088757A1 US 20080088757 A1 US20080088757 A1 US 20080088757A1 US 68226207 A US68226207 A US 68226207A US 2008088757 A1 US2008088757 A1 US 2008088757A1
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US
United States
Prior art keywords
electrode
liquid crystal
substrate
display panel
crystal display
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US11/682,262
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English (en)
Inventor
Mu-Jen Su
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AUO Corp
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Assigned to AU OPTRONICS CORP. reassignment AU OPTRONICS CORP. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SU, MU-JEN
Publication of US20080088757A1 publication Critical patent/US20080088757A1/en
Priority to US12/829,395 priority Critical patent/US8081283B2/en
Abandoned legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133707—Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/139—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
    • G02F1/1393—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent the birefringence of the liquid crystal being electrically controlled, e.g. ECB-, DAP-, HAN-, PI-LC cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136213—Storage capacitors associated with the pixel electrode

Definitions

  • the invention relates to a liquid crystal display panel, and more particularly, to a multi-domain vertical alignment liquid crystal display panel.
  • Liquid crystal displays are commonly utilized in various electronic products including cell phones, PDAs, and notebook computers. As the market demand for large-scale display panels continues to increase, liquid crystal displays having advantages such as small size and light weight have become widely popular. In fact, liquid crystal displays are gradually replacing the conventional cathode ray tube (CRT) displays that had dominated the market for so many years. However, the viewing angle of the conventional liquid crystal displays is not sufficiently wide to ensure a high display quality, therefore, the development of liquid crystal displays is limited by this important factor.
  • a multi-domain vertical alignment (MVA) or premium multi-domain vertical alignment (PMVA) display capable of orientating liquid crystals in various directions is therefore made to improve the problem of insufficient viewing angle resulted from the conventional displays.
  • FIG. 1 is a plan view diagram illustrating a pixel of a multi-domain vertical alignment liquid crystal display 10 according to the prior art.
  • FIG. 2 is a cross-section diagram of FIG. 1 along the sectional line AA′.
  • the conventional multi-domain vertical alignment liquid crystal display panel 10 includes a top substrate 12 , a bottom substrate 14 , a liquid crystal layer 16 having negative liquid crystals disposed between the top substrate 12 and the bottom substrate 14 , and a first pixel electrode 20 and a second pixel electrode 28 disposed between the liquid crystal layer 16 and the bottom substrate 14 .
  • a common electrode 18 disposed on the top substrate 12 .
  • a plurality of color filters (not shown) is disposed between the top substrate 12 and the common electrode 18 .
  • a plurality of protrusions 22 disposed with respect to the first pixel electrode 20 and the second pixel electrode 28 .
  • a capacitor 32 is disposed on the bottom substrate 14 . The capacitor 32 is specifically disposed corresponding to the protrusions 22 of the top substrate 12 .
  • Each of the first pixel electrode 20 and the second pixel electrode 28 can be a transmitting electrode composed of indium tin oxide or indium zinc oxide or a reflective electrode.
  • the first pixel electrode 20 and the second pixel electrode 28 are separated by a main slit 26 and connected to each other by a rectangular bridge electrode 24 , which can be a transmitting electrode.
  • the capacitor 32 is composed of a top capacitor electrode 38 , a bottom capacitor electrode 34 , and a dielectric layer 36 disposed between the top capacitor electrode 38 and the bottom capacitor electrode 34 .
  • the capacitor electrodes 36 and 38 are connected according to a parallel manner for forming a capacitor. The parallel connection of the capacitor increases the capacity of the capacitor and maintains the voltage of the capacitor.
  • the conventional capacitor is typically formed corresponding to the position of the protrusions. This design improves the problem of light leakage caused by unstable alignment of liquid crystals during dark state and increases the contrast of the display panel.
  • the present invention discloses a liquid crystal display panel.
  • the liquid crystal display panel includes a first substrate, a second substrate, a pixel disposed on the second substrate, a bottom capacitor electrode, a top capacitor electrode, a liquid crystal layer disposed between the first substrate and the second substrate, and a plurality of protrusions disposed on the first substrate.
  • the pixel includes a first pixel electrode and a second pixel electrode, in which a main slit is formed between the first pixel electrode and the second pixel electrode.
  • the bottom capacitor electrode is disposed on the second substrate and overlaps a portion of the main slit
  • the top capacitor electrode is disposed on the second substrate and forms a capacitor with the bottom capacitor electrode.
  • the capacitor of the present invention is formed corresponding to the position of the main slit between the two pixel electrodes.
  • FIG. 1 is a plan view diagram illustrating a pixel of a multi-domain vertical alignment liquid crystal display according to the prior art.
  • FIG. 2 is a cross-section diagram of FIG. 1 along the sectional line AA′.
  • FIG. 3 is a plan view of a pixel of a multi-domain vertical alignment liquid crystal display panel according to a preferred embodiment of the present invention.
  • FIG. 4 is a cross-section diagram of FIG. 3 along the sectional line BB′.
  • FIG. 5 is a cross-section diagram of FIG. 3 along the sectional line CC′.
  • FIG. 6 illustrates a plan view of a pixel of a multi-domain vertical alignment liquid crystal display panel according to an embodiment of the present invention.
  • the stability of the liquid crystal and the uniformity of the display region are typically determined by whether the liquid crystals are positioned according to a ⁇ 90° angle. In most cases, a maximum stability can be achieved if the ⁇ 90° angle of the liquid crystals is in the center of the pixel. Otherwise, the domain of the display region would result in an uneven state. Since the angle of the liquid crystals is governed by the magnitude of the electric field or the influence contributed by the protrusions and the main slits, the conventional design of having only one bridge electrode is often affected by the force pulling from either left or right side, thus affecting the uniform state of the liquid crystals. The result causes the ⁇ 90° angle of the liquid crystals to be present in regions other than the center of the bridge electrode, which ultimately causes the liquid crystals to shift toward left, right, or other unexpected directions.
  • the present invention specifically forms the capacitor in a position corresponding to the main slit between two pixel electrodes.
  • the capacitor can be used to reduce the light leakage of the main slit region for increasing the usability of high pixels and the overall aperture ratio of the display panel.
  • a bridge electrode having a shrinking pattern can be formed while the capacitor is disposed with respect to the main slit, such that the shrinking pattern of the bridge electrode can be used to improve uneven distribution of liquid crystals found in conventional rectangular bridge electrodes.
  • FIG. 3 is a plan view of a pixel of a multi-domain vertical alignment liquid crystal display panel 40 according to a preferred embodiment of the present invention.
  • FIG. 4 is a cross-section diagram of FIG. 3 along the sectional line BB′, and
  • FIG. 5 is a cross-section diagram of FIG. 3 along the sectional line CC′. As shown in FIGS.
  • the multi-domain vertical alignment liquid crystal display panel 40 includes a top substrate 42 , a bottom substrate 44 , a liquid crystal layer 46 having negative liquid crystals disposed between the top substrate 42 and the bottom substrate 44 , a first pixel electrode 50 , a second pixel electrode 52 , and a third pixel electrode 53 disposed between the liquid crystal layer 46 and the bottom substrate 44 .
  • a pixel is commonly defined by two data lines (not shown) and two scan lines (not shown).
  • Multi-domain vertical alignment liquid crystal display panel 40 includes a common electrode 48 formed on the surface of the top substrate 42 , a plurality of color filters (not shown) disposed between the top substrate 42 and the common electrode 48 , a plurality of protrusions 56 disposed with respect to the first pixel electrode 50 , the second pixel electrode 52 , the third pixel electrode 53 , and two rectangular bridge electrodes 54 electrically connected to the first pixel electrode 50 , the second pixel electrode 52 , and the third pixel electrode 53 .
  • a capacitor 64 is formed on the surface of the bottom substrate 44 .
  • a planarizing layer 96 is disposed on the capacitor 64 , and a transparent conductive layer 98 is formed on the planarizing layer 96 .
  • the bridge electrodes 54 can be formed in the same fabrication process or same layer as the first pixel electrode 50 , the second pixel electrode 52 , and the third pixel electrode 53 .
  • the shape, size, depth, and width of the bridge electrodes 54 can be adjusted according to the design of the product, which are all within the scope of the present invention.
  • the first pixel electrode 50 , the second pixel electrode 52 , and the third pixel electrode 53 are preferably transparent electrodes composed of indium tin oxide or indium zinc oxide, such as the transparent conductive layer 98 , or reflective electrodes composed of reflecting metals. Additionally, a main slit 60 is formed between the first pixel electrode 50 and the second pixel electrode 52 , and between the second pixel electrode 52 and the third pixel electrode 53 respectively, in which main slits 60 are formed among the bridge electrodes 54 , the first pixel electrode 50 and the second pixel electrode 52 , or among the bridge electrodes 54 , the second pixel electrode 52 and the third pixel electrode 53 .
  • the capacitor 64 of the present invention is formed on the bottom substrate 44 corresponding to the main slit 60 .
  • the capacitor 64 is preferably composed of a top capacitor electrode 70 , a bottom capacitor electrode 66 , and a dielectric layer 68 disposed between the two electrodes 70 and 66 .
  • the top capacitor electrode 70 is connected to the drain of the thin film transistors (not shown) disposed on the bottom substrate 44 , in which the top capacitor electrode 70 and/or the bottom capacitor electrode 66 partially overlaps the main slit 60 .
  • the present invention is able to improve the problem of light leakage with respect to the main slit region, thus increasing the transmittance and usability of the pixels.
  • FIG. 6 illustrates a plan view of a pixel of a multi-domain vertical alignment liquid crystal display panel according to an embodiment of the present invention.
  • this embodiment includes a first pixel electrode 74 , a second pixel electrode 76 , a third pixel electrode 86 , a bridge electrode 72 connecting the first pixel electrode 74 and the second pixel electrode 76 , a bridge electrode 88 connecting the second pixel electrode 76 and the third pixel electrode 86 , and a plurality of protrusions 84 disposed corresponding to the pixel electrodes.
  • the first pixel electrode 74 , the second pixel electrode 76 , and the third pixel electrode 86 are preferably transparent electrodes composed of indium tin oxide or indium zinc oxide or reflective electrodes composed of reflecting metals.
  • a first main slit 92 is formed among the first pixel electrode 74 , the second pixel electrode 76 and the bridge electrode 72
  • a second main slit 94 is formed among the second pixel electrode 76 , the third pixel electrode 86 and the bridge electrode 88 .
  • the first main slit 92 (or the bridge electrode 72 ) includes a slant (not shown) formed between the central portion 78 and two end portion 80 .
  • a capacitor 90 is disposed corresponding to the position of the main slit 92 .
  • the bridge electrode 72 formed between the first pixel electrode 74 and the second pixel electrode 76 includes a central portion 78 and two end portion 80 , in which the width W of each of the end portion 80 is greater than the width w of the central portion 78 .
  • the bridge electrode 72 or 88 can also be formed in the same fabrication process or same layer as the first pixel electrode 74 and the second pixel electrode 76 .
  • the shape, size, depth, and width of the bridge electrodes 72 or 88 can also be adjusted according to the design of the product, which are all within the scope of the present invention.
  • the present invention not only forms the capacitor 90 in a spot corresponding to the location of the main slit to increase the transmittance and utilization of the pixels, but also forms a bridge electrode 72 with a shrinking pattern to improve the problem of unstable arrangement of liquid crystals caused by conventional rectangular design of the bridge electrodes.
  • the present invention forms the capacitor in a position relative to the main slit that is formed between two pixel electrodes.
  • the capacitor can be used to reduce the problem of light leakage with respect to the main slit region during dark state and increase the transmittance and utilization of the pixels.
  • bridge electrodes with shrinking patterns can also be incorporated with the design of the capacitor, in which the shape of the shrinking pattern can be used to improve unstable alignment of the liquid crystals and increase the optical property of the display panel.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Geometry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Liquid Crystal (AREA)
US11/682,262 2006-10-16 2007-03-05 Liquid crystal display panel Abandoned US20080088757A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/829,395 US8081283B2 (en) 2006-10-16 2010-07-02 Liquid crystal display panel with pixel electrodes having bridge electrode

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TW095138051A TWI333110B (en) 2006-10-16 2006-10-16 Multi-domain vertically alignment liquid crystal display panel
TW095138051 2006-10-16

Related Child Applications (1)

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US12/829,395 Active US8081283B2 (en) 2006-10-16 2010-07-02 Liquid crystal display panel with pixel electrodes having bridge electrode

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102540535A (zh) * 2010-12-27 2012-07-04 上海天马微电子有限公司 一种mva像素结构和mva液晶显示装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI599835B (zh) 2016-10-17 2017-09-21 友達光電股份有限公司 畫素單元及其顯示面板

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US20030137628A1 (en) * 2002-01-18 2003-07-24 Fujitsu Display Technologies Corporation Substrate for liquid crystal display, liquid crystal display having the same, and method of manufacturing the same
US6842213B2 (en) * 2001-04-06 2005-01-11 Samsung Electronics Co., Ltd. Liquid crystal display
US20050122452A1 (en) * 2003-12-09 2005-06-09 Fujitsu Display Technologies Corporation & Au Optronics Corporation Liquid crystal display and method of manufacturing the same
US20060092341A1 (en) * 2004-11-02 2006-05-04 Wei-Kai Huang Thin film transistor array substrate and method for repairing the same
US20060158574A1 (en) * 2003-06-11 2006-07-20 Masumi Kubo Liquid crystal display
US7245343B2 (en) * 2000-12-15 2007-07-17 Nec Lcd Technologies, Ltd. Liquid crystal display device
US7450205B2 (en) * 2001-04-04 2008-11-11 Sharp Kabushiki Kaisha Liquid crystal display device with retardation plates

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US5585948A (en) * 1995-02-22 1996-12-17 Three-Five Systems, Inc. Dot matrix liquid crystal display with low multiplex ratio with each column electrode connected to only one other
KR100379287B1 (ko) * 1999-06-25 2003-04-10 닛뽄덴끼 가부시끼가이샤 멀티 도메인 액정 표시장치
JP4255429B2 (ja) 2004-10-18 2009-04-15 シャープ株式会社 液晶表示装置
US8068200B2 (en) * 2004-12-24 2011-11-29 Casio Computer Co., Ltd. Vertical alignment liquid crystal display device in which a pixel electrode has slits which divide the pixel electrode into electrode portions
CN1333295C (zh) 2005-04-14 2007-08-22 友达光电股份有限公司 适用于广视角液晶显示器的像素结构

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7245343B2 (en) * 2000-12-15 2007-07-17 Nec Lcd Technologies, Ltd. Liquid crystal display device
US7450205B2 (en) * 2001-04-04 2008-11-11 Sharp Kabushiki Kaisha Liquid crystal display device with retardation plates
US6842213B2 (en) * 2001-04-06 2005-01-11 Samsung Electronics Co., Ltd. Liquid crystal display
US20030137628A1 (en) * 2002-01-18 2003-07-24 Fujitsu Display Technologies Corporation Substrate for liquid crystal display, liquid crystal display having the same, and method of manufacturing the same
US20060158574A1 (en) * 2003-06-11 2006-07-20 Masumi Kubo Liquid crystal display
US20050122452A1 (en) * 2003-12-09 2005-06-09 Fujitsu Display Technologies Corporation & Au Optronics Corporation Liquid crystal display and method of manufacturing the same
US7250996B2 (en) * 2003-12-09 2007-07-31 Fujitsu Limited Liquid crystal display and method of manufacturing the same
US20060092341A1 (en) * 2004-11-02 2006-05-04 Wei-Kai Huang Thin film transistor array substrate and method for repairing the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102540535A (zh) * 2010-12-27 2012-07-04 上海天马微电子有限公司 一种mva像素结构和mva液晶显示装置

Also Published As

Publication number Publication date
US8081283B2 (en) 2011-12-20
TW200819875A (en) 2008-05-01
TWI333110B (en) 2010-11-11
US20100265446A1 (en) 2010-10-21

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Owner name: AU OPTRONICS CORP., TAIWAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SU, MU-JEN;REEL/FRAME:018962/0233

Effective date: 20070226

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION