JPH02251992A - Liquid crystal display panel and its manufacture - Google Patents

Liquid crystal display panel and its manufacture

Info

Publication number
JPH02251992A
JPH02251992A JP7536089A JP7536089A JPH02251992A JP H02251992 A JPH02251992 A JP H02251992A JP 7536089 A JP7536089 A JP 7536089A JP 7536089 A JP7536089 A JP 7536089A JP H02251992 A JPH02251992 A JP H02251992A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
liquid crystal
crystal display
display panel
tfts
time
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.)
Pending
Application number
JP7536089A
Inventor
Hiroshi Takahara
Original Assignee
Matsushita Electric Ind Co Ltd
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

Links

Abstract

PURPOSE: To easily inspect TFTs on an active matrix array by connecting a driving IC to a source signal line to which a switching element is connected through a conductive joint layer.
CONSTITUTION: The liquid crystal display panel has thin film transistors(TFT) TM11 - TM34 and TS11 - TS44 for picture element driving and a scanning circuit 19 on a polysilicon substrate 11. The scanning circuit 19 is put in operation to apply an optional gate signal line 15 with a voltage which operates the TFTs or a voltage which does not operate the TFTs. Therefore, a probe is pressed against all gate signal lines 15 at a time to obtain effect similar t that at the time of signal application. Further, a source IC 14 is mounted after the liquid crystal display panel is inspected, so the impedance of a source IC 14 need not be considered at the time of inspection and secure and stable inspection is therefore performed. Consequently, the manufacture yield is improved and it is easily decided fast whether or not the liquid crystal display panel is normal.
COPYRIGHT: (C)1990,JPO&Japio
JP7536089A 1989-03-27 1989-03-27 Liquid crystal display panel and its manufacture Pending JPH02251992A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7536089A JPH02251992A (en) 1989-03-27 1989-03-27 Liquid crystal display panel and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7536089A JPH02251992A (en) 1989-03-27 1989-03-27 Liquid crystal display panel and its manufacture

Publications (1)

Publication Number Publication Date
JPH02251992A true true JPH02251992A (en) 1990-10-09

Family

ID=13573979

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7536089A Pending JPH02251992A (en) 1989-03-27 1989-03-27 Liquid crystal display panel and its manufacture

Country Status (1)

Country Link
JP (1) JPH02251992A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5701167A (en) * 1990-12-25 1997-12-23 Semiconductor Energy Laboratory Co., Ltd. LCD having a peripheral circuit with TFTs having the same structure as TFTs in the display region
US5859445A (en) * 1990-11-20 1999-01-12 Semiconductor Energy Laboratory Co., Ltd. Electro-optical device including thin film transistors having spoiling impurities added thereto
US7081938B1 (en) * 1993-12-03 2006-07-25 Semiconductor Energy Laboratory Co., Ltd. Electro-optical device and method for manufacturing the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5859445A (en) * 1990-11-20 1999-01-12 Semiconductor Energy Laboratory Co., Ltd. Electro-optical device including thin film transistors having spoiling impurities added thereto
US6011277A (en) * 1990-11-20 2000-01-04 Semiconductor Energy Laboratory Co., Ltd. Gate insulated field effect transistors and method of manufacturing the same
US5701167A (en) * 1990-12-25 1997-12-23 Semiconductor Energy Laboratory Co., Ltd. LCD having a peripheral circuit with TFTs having the same structure as TFTs in the display region
US7081938B1 (en) * 1993-12-03 2006-07-25 Semiconductor Energy Laboratory Co., Ltd. Electro-optical device and method for manufacturing the same

Similar Documents

Publication Publication Date Title
JPH0244317A (en) Liquid crystal display device with auxiliary capacity
JPS62251723A (en) Liquid crystal panel incorporating driver
JPH01156725A (en) Display device
JPH04253028A (en) Active matrix type liquid crystal display device
JPS6247623A (en) Liquid crystal display device
CN101174038A (en) LCD device
JPH01194351A (en) Thin film semiconductor device
JPS6355529A (en) Active matrix liquid crystal display device and its production
JPH04242724A (en) Liquid crystal display device
JPH02208635A (en) Semiconductor device
CN101241281A (en) Active element array substrate
JPS6370832A (en) Active matrix panel
JPH0334434A (en) Thin film semiconductor device and manufacture thereof
JPH04251285A (en) Liquid crystal display device and liquid crystal projection type television using the same
US7436461B2 (en) Liquid crystal display device
JPH0372321A (en) Active matrix display device
JPH03148636A (en) Manufacture of active matrix type liquid crystal display element
JPS63101831A (en) Active matrix liquid crystal display device and its manufacture
JPH02135425A (en) Active matrix array
JPS6097322A (en) Liquid crystal matrix panel
US6204836B1 (en) Display device having defect inspection circuit
JPS63309921A (en) Liquid crystal display device
JPS6364023A (en) Display device
JPH02216129A (en) Liquid crystal image display device and production thereof
US20060152245A1 (en) TFT substrate and testing method of thereof