Flexible circuit board for display
AssigneeSilicon Works Co., Ltd.
InventorsKyung Jik MIN, Ju Young SHIN, Ji Hyun HWANG, Jung Bae YUN
Life of this patent
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Abstract
A flexible circuit board for a display, having a chip-on-film structure, is disclosed. A connection pattern which is selected as a first connection pattern among connection patterns connected to panel contact pads does not reach a cutting line and is confined within a product region. As a consequence, the connection pattern selected as the first connection pattern may be prevented from being exposed on a cutting section along the cutting line, and thus, may be prevented from being changed in its electrical property due to penetration of moisture.
Claims14
A flexible circuit board for a display, comprising:
- a base film divided into a product region and a test connection region based on a cutting line;
- integrated circuit contact pads arranged at one side of an integrated circuit region which is defined in the product region, and formed for electrical contact with an integrated circuit;
- panel contact pads arranged between the integrated circuit contact pads and the cutting line, and formed for electrical contact with a display panel;
- test pads formed in the test connection region;
- connection patterns electrically connecting the integrated circuit contact pads and the panel contact pads, respectively;
- and
- extension patterns extending, when at least one among the connection patterns is selected as a first connection pattern, from remaining connection patterns which are not selected as the first connection pattern, and electrically connected to the test pads, respectively.
A flexible circuit board for a display, comprising:
- a base film having a cutting line;
- integrated circuit contact pads arranged at one side of an integrated circuit region on the base film, and formed for electrical contact with an integrated circuit;
- panel contact pads arranged between the integrated circuit contact pads and the cutting line, and formed for electrical contact with a display panel;
- connection patterns electrically connecting the integrated circuit contact pads and the panel contact pads, respectively;
- and
- extension patterns extending, when at least one among the connection patterns is selected as a first connection pattern, from remaining connection patterns which are not selected as the first connection pattern, to pass through the cutting line.
Dependencies are inferred from the claim text.