Back to results
US 10,852,571 B2Granted
Display module and method of testing the same
AssigneeSamsung Display Co., Ltd.
InventorsHyun-been Hwang, Kinyeng Kang
Life of this patent
Estimating the term…
Abstract
A display module includes a plurality of pixels, a plurality of data lines connected to the pixels, a demultiplexer connected to the data lines, a plurality of first pads connected to the demultiplexer, and a plurality of second pads. The second pads include a plurality of first test pads connected to corresponding data lines of the data lines and a first dummy pad connected to one first test pad of the first test pads.
Claims18
A display module comprising:
- a plurality of pixels;
- a plurality of data lines connected to the plurality of pixels;
- a demultiplexer connected to the plurality of data lines;
- a plurality of first pads connected to the demultiplexer;
- and
- a plurality of second pads comprising:
- a plurality of first test pads connected to corresponding data lines of the plurality of data lines;
- a first dummy pad connected to one first test pad of the plurality of first test pads, and
- a sub-pad insulated from the plurality of first test pads and the first dummy pad.
6 more elements
A method of testing a display module, the method comprising:
- aligning a display module comprising a plurality of test pads and a dummy pad connected to one test pad among the plurality of test pads with a test equipment comprising a plurality of probe pins corresponding to the plurality of test pads and the dummy pad;
- performing a first testing operation which applies a first electrical signal to the one test pad among the plurality of test pads and measures the applied first electrical signal through the dummy pad;
- and
- performing a second testing operation which applies a second electrical signal to each of the plurality of test pads.
1 more element
Dependencies are inferred from the claim text.