Patent ID: 9576512
Date: 2017-02-21
CPC Classifications: G09G

Claim:
1. A display panel, comprising: a display part including a plurality of sub-pixels configured to display a plurality of colors, and a plurality of data lines connected with the sub-pixels; a first test part configured to supply a test signal to corresponding odd or even data lines for (2K−1)th data lines (‘K’ is an integer above 0) by each color of the sub-pixels among the plurality of data lines; and a second test part configured to supply a test signal to other data lines other than the corresponding odd or even data lines for 2Kth data lines by each color for the sub-pixels among the plurality of data lines when the first test part supplies the test signal, wherein a polarity of the test signal supplied by the second test part is opposite to a polarity of the test signal supplied by the first test part, wherein the first test part includes a first plurality of test pads configured to be in contact with a test apparatus and receive test signals from the test apparatus, wherein the second test part includes a second plurality of test pads configured to be in contact with the test apparatus and receive test signals from the test apparatus, wherein the first test part is configured to supply a positive polarity test signal to a first group of corresponding data lines among the corresponding odd or even data lines connected with first corresponding sub-pixels, supply a negative polarity test signal to a second group of corresponding data lines among the corresponding odd or even data lines connected with second corresponding sub-pixels positioned next to the first corresponding sub-pixels, and supply the positive polarity test signal to a third group of corresponding data lines among the corresponding odd or even data lines connected with third corresponding sub-pixels positioned next to the second corresponding sub-pixels, and wherein the second test part is further configured to supply the negative polarity test signal to a first group of other data lines among the other data lines, supply the positive polarity test signal to a second group of other data lines among the other data lines, and supply the negative polarity test signal to a third group of other data lines among the other data lines.