DISPLAY DEVICE AND METHOD OF TESTING THE SAME

• Main Authors: YOO, JEONG GEUN, JUNG, MYUNG SOOK, KIM, SUNG MIN
• Format: Patent
• Language: English; Korean
• Published: 05.07.2012
• Subjects: ADVERTISING; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; CRYPTOGRAPHY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DISPLAY; EDUCATION; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; SEALS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

PURPOSE: A display device and an inspection method thereof are provided to inspect a mounting fault of a driving circuit unit by an inspection pad. CONSTITUTION: Inspection pads(141~144) are located on a peripheral area of a substrate(114). Main pins(156,158) are connected to pixel cells. Dummy pins(151~154) are connected to the inspection pads respectively. Visual inspection lines(166,168) are arranged on the peripheral area of the substrate. The visual inspection lines include a first portion connected to the main pins and a second portion connected to the inspection pads. The first and second portions are disconnected each other.