DISPLAY DEVICE BEING POSSIBLE TO DETECT BONDING DEFECT

• Main Authors: KIM BONG HWAN, PARK BYUNG HWEE, KIM YU CHEOL
• Format: Patent
• Language: English
• Published: 03.07.2014
• Subjects: BASIC ELECTRIC ELEMENTS; CURRENT COLLECTORS; 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; ELECTRICITY; FREQUENCY-CHANGING; LINE CONNECTORS; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

A bonding-defect-detectable display device is disclosed which includes: a display panel defined into an active area used to display images and a pad area in which pads is formed; driver IC (Integrated Circuit) chip loaded on a pad region of the display panel; a flexible printed circuit board mounted to the pad region of the display panel; and a bonding resistance detection unit disposed into the driver IC chip. The display panel includes: first and second bonding portions formed in an occupation region of the driver IC chip within the pad area of the display panel; and third and fourth bonding portions formed in an occupation region of the flexible printed circuit board with the pad area of the display panel.