Display device and pad contact test method thereof
US11741866B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2021 |
| Grant date | Aug 29, 2023 |
| Priority date | — |
| Expiry date | Jul 30, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2300/0426
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display device includes a display panel, a main circuit board including a plurality of board pads arranged along a first direction, a connection circuit board electrically connected to the display panel and the main circuit board, and a driving chip disposed on the connection circuit board. The connection circuit board includes a plurality of board connection pads respectively connected to a plurality of board pads, a plurality of lines connecting the driving chip to the plurality of board connection pads to each other, and a test pattern disposed spaced part from the driving chip, where a first line and a second line among the lines are electrically connected to the test pattern, and a same voltage is applied to the first line and the second line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.