Display panel and display device

Abstract

The invention discloses a display panel and a display device. The display panel comprises a display area and a non-display area. The non-display area comprises a shorting bar circuit, a multi-path output selection circuit and a driving chip binding area, and the driving chip binding area is provided with a plurality of output binding terminals; the shorting bar circuit comprises a test signal input end and a test signal output end, the multi-path output selection circuit comprises a display signal receiving end, and the output binding terminal is electrically connected with the test signal output end and the display signal receiving end; the display panel further comprises a blocking module; In the display test stage, the blocking module is used for controlling a transmission path betweenthe test signal input end and the output binding terminal to be conducted; and in the display stage, the blocking module is used for controlling the transmission path between the test signal input endand the output binding terminal to be blocked, so that normal test and normal display of the COG panel can be realized, and by additionally arranging the blocking module, a short-circuiting bar circuit does not need to be cut off after the test process is finished, and the panel preparation process is saved.

Description

technical field [0001] Embodiments of the present invention relate to the field of display technology, and in particular, to a display panel and a display device. Background technique [0002] In the existing design, before the display panel leaves the factory, a point-screen test (VT test) is performed on the display panel, and only the display panel with a normal picture display will go to the next process. During the VT test, it is necessary to short-circuit the data signal lines of the sub-pixels displaying light of the same color through a short-circuit bar, so as to realize the display of a monochrome picture. [0003] Chip On Film (COF) technology is to fix the driver chip on the flexible circuit board, so that the lower frame of the display panel can be reduced, which is beneficial to realize narrow frame display. However, COF technology will use two flexible circuit boards, and the mold opening cost of the flexible circuit board is relatively high, which increases ...

AI Technical Summary

Problems solved by technology

However, COF technology will use two flexible circuit boards, and the mold opening cost of the flexible circuit board is relatively high, which increases the overall cost of the display panel; and in the COF display panel, after the dot screen test is completed, the shorting bar circuit needs to be cut off, increasing the cost of the display panel. craft

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