JP5409024B2 - 表示装置 - Google Patents
表示装置 Download PDFInfo
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- JP5409024B2 JP5409024B2 JP2009012761A JP2009012761A JP5409024B2 JP 5409024 B2 JP5409024 B2 JP 5409024B2 JP 2009012761 A JP2009012761 A JP 2009012761A JP 2009012761 A JP2009012761 A JP 2009012761A JP 5409024 B2 JP5409024 B2 JP 5409024B2
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Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/0203—Particular design considerations for integrated circuits
- H01L27/0248—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection
- H01L27/0251—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection for MOS devices
- H01L27/0296—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection for MOS devices involving a specific disposition of the protective devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/124—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/1248—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition or shape of the interlayer dielectric specially adapted to the circuit arrangement
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- Power Engineering (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Liquid Crystal (AREA)
- Thin Film Transistor (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Semiconductor Integrated Circuits (AREA)
- Electroluminescent Light Sources (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Description
なお、本明細書において、なお本明細書にて用いる第1、第2、第3、乃至第N(Nは自然数)という用語は、構成要素の混同を避けるために付したものであり、数的に限定するものではないことを付記する。
ここでは、保護回路の構造について、以下に示す。なお、図1に示す素子基板1000において、第1方向に延在し、第1方向と交差する第2方向に並設された複数の第1配線を走査線とし、第2方向に延在し、第1方向に並設された複数の第2配線を信号線とする。画素部に設けられる画素において、画素電極の電位を制御するスイッチング素子が設けられるアクティブマトリクス型表示装置の場合、走査線はゲート電極に接続される。または、走査線の一部がゲート電極として機能する。このため、以下、第1配線をゲート配線1301として示す。また、信号線は、スイッチング素子のソースに接続されることから、以下、第2配線をソース配線1302と示す。しかしながら、第2配線がスイッチング素子のドレインに接続される場合は、第2配線をドレイン配線とすることができる。
本実施の形態では、実施の形態1において図2及び図4に示した保護回路の作製方法について、図5及び図6を用いて示す。
本実施の形態では、ゲート配線上方に、凹部を有する、または分離された半導体膜が形成され、半導体膜上方に第2コモン線が形成され、ゲート配線及び第2コモン線の間にゲート配線及び第2コモン線を絶縁化する絶縁膜が形成される保護回路の構造について、図7乃至図12を用いて示す。
本実施の形態では、薄膜トランジスタと同時に実施の形態3に示す保護回路を作製する工程について、以下に示す。なお、本実施の形態では、同一のゲート配線において薄膜トランジスタ及び保護回路が形成される形態を示す。
次に、表示装置の一形態である表示パネルの構成について、以下に示す。
信号線駆動回路が有するシフトレジスタ6033bは、FPC6035及び保護回路6036を介して画素部6032と接続されている。画素部6032と、信号線駆動回路と、走査線駆動回路6034とに、それぞれ電源の電位、各種信号等が、FPC6035を介して供給される。シフトレジスタ6033b及びアナログスイッチ6033aの間に、上記実施の形態に示す保護回路6036が設けられる。保護回路6036は、上記実施の形態で示す保護回路のほか、薄膜トランジスタ、ダイオード、抵抗素子及び容量素子等から選択された1つ又は複数の素子によって構成される保護回路を設けてもよい。
上記実施の形態により得られる素子基板、及びそれを用いた表示装置等は、アクティブマトリクス型表示装置パネルに用いることができる。即ち、それらを表示部に組み込んだ電子機器全てに上記実施の形態を実施できる。
Claims (2)
- 基板上に画素部と、前記画素部の周辺に設けられる周辺部とを有する表示装置であって、
前記基板上において、第1方向に延在し、前記第1方向と交差する第2方向に並設された複数の第1配線及び第1コモン線と、前記第1配線及び前記第1コモン線を覆う絶縁膜と、前記第1配線及び前記第1コモン線と重なる絶縁膜上に少なくとも形成される膜と、少なくとも前記膜上に形成され、且つ前記第2方向に延在し、前記第1方向に並設された複数の第2配線及び第2コモン線と、を有し、
前記画素部において、薄膜トランジスタと、前記薄膜トランジスタに接続する画素電極とを有し、
前記画素部の周辺部であって、且つ前記第1コモン線及び前記第2配線の交差部において、前記膜に凹部または分離部が形成され、
前記画素部の周辺部であって、且つ前記第2コモン線及び前記第1配線の交差部において、前記膜に凹部または分離部が形成されることを特徴とする表示装置。 - 基板上に画素部と、前記画素部の周辺に設けられる周辺部とを有する表示装置であって、
前記基板上において、第1方向に延在し、前記第1方向と交差する第2方向に並設された複数の第1配線及び第1コモン線と、前記第1配線及び前記第1コモン線上に少なくとも形成される膜と、前記膜上に形成される絶縁膜と、前記絶縁膜上に形成され、且つ前記第2方向に延在し、前記第1方向に並設された複数の第2配線及び第2コモン線と、を有し、
前記画素部において、薄膜トランジスタと、前記薄膜トランジスタに接続する画素電極とを有し、
前記周辺部であって、且つ前記第1コモン線及び前記第2配線の交差部において、前記膜に凹部または分離部が形成され、前記周辺部であって、且つ前記第2コモン線及び前記第1配線の交差部において、前記膜に凹部または分離部が形成されることを特徴とする表示装置。
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