Disclosed is an in-cell touch liquid crystal display (LCD) apparatus comprising: an active area in which a plurality of pixels are provided; and a pad area in which an auto probe test pattern is disposed, wherein the auto probe test pattern comprises a common voltage enable signal line; a common voltage switching unit; a data enable signal line through which a data enable signal is applied; and a data switching unit that is coupled to the data enable signal line and configured to be turned on by the data enable signal and output a data voltage. The common voltage enable signal line and the data enable signal line are disposed separately from each other.

A display panel and a detection method thereof are provided. Wireless signals are transmitted to a gate-line wireless sensing electrode connected to gate lines and a data-line wireless sensing electrode connected to data lines that are preset at a dummy zone of the display panel (1, 1′), respectively, through wireless signal transmitting electrodes (6) connected to a transmitter, so as to generate a gate-line detection signal and a data-line detections signal, thereby realizing detection of the display panel. The gate-line wireless sensing electrode and the data-line wireless sensing electrode are formed at the dummy zone on the array substrate (1, 1′) in the technological process of producing the gate lines and the data lines of the array substrate of the display panel, respectively. Therefore, poorness of a display can be detected without cutting of a display panel (1, 1′), poorness is detected early, and repair is made timely. Thus, the issue that a defective product flows to a subsequent process and a waste of cost results from it is avoided.

The present invention provides a liquid crystal display panel. The array test circuit (200) comprises a test control unit including a N type thin film transistor and a P type thin film transistor, wherein one thin film transistor is employed to be the output thin film transistor, and the other thin film transistor is employed to be the voltage stabilization thin film transistor. When the liquid crystal display panel is in the normal display state, the test control signal (ATEN) controls the output thin film transistor to be deactivated and controls the voltage stabilization thin film transistor to be activated so that the voltage difference of the gate and the source of the output thin film transistor is zero. Thus, the leakages on the data lines in the active display area (100) are consistent.

An object is to provide a display device that performs accurate display. A circuit is formed using a transistor that includes an oxide semiconductor and has a low off-state current. A precharge circuit or an inspection circuit is formed in addition to a pixel circuit. The off-state current is low because the oxide semiconductor is used. Thus, it is not likely that a signal or voltage is leaked in the precharge circuit or the inspection circuit to cause defective display. As a result, a display device that performs accurate display can be provided.

An array board 11b includes a display section AA, a source line 20 connected to the display section AA, a test circuit 40 connected to the source line 20 and configured to test the display section AA, a panel-side image input terminal that is disposed such that the test circuit 40 is between the terminal and the display section AA and to which a signal to be supplied to the source line 20 is input, a terminal connection line 51 connecting the source line 20 to the pane-side image input terminal 35A and the terminal connection line 51 including the terminal connection line 51 at least a part of which overlaps the test circuit 40 and a flattening film (insulation film) 28 at least disposed between an overlapping portion of the test circuit 40 and the terminal connection line 51.

A liquid crystal display panel and a testing method thereof are provided. A circuit is shared for a box test and an array test, and a plurality of test lines and a plurality of test pads are not needed to be disposed in the liquid crystal display panel separately for the box test and the array test, that is, areas for disposing the plurality of test lines and the plurality of test pads are not needed to be reserved for the box test and the array test, which can increase a cuttable size of the liquid crystal display panel and increase a number of extractions from the liquid crystal display panel.

The present disclosure relates to a display panel, a liquid crystal display device and a test method thereof. The display panel includes a display area and a GOA circuit area. The GOA circuit area includes a plurality of GOA units arranged on a TFT substrate and metal areas arranged at positions of a CF substrate corresponding to the GOA units, which constitute capacitor structures with the GOA units. The display panel further includes signal lines electrically connected with the capacitor structures; and test points elicited through the signal lines. By means of the above configuration, the position where short circuit/open circuit occurs in the GOA circuit area can be found quickly by monitoring the voltage on the test point, thereby shortening the time of seeking ESD and short circuit/open circuit, increasing the analyzing and improving speed.

An object is to provide a display device that performs accurate display. A circuit is formed using a transistor that includes an oxide semiconductor and has a low off-state current. A precharge circuit or an inspection circuit is formed in addition to a pixel circuit. The off-state current is low because the oxide semiconductor is used. Thus, it is not likely that a signal or voltage is leaked in the precharge circuit or the inspection circuit to cause defective display. As a result, a display device that performs accurate display can be provided.

The present invention provides a display panel, which includes a plurality of scanning lines extending along a first direction, a plurality of data lines extending along a second direction and intersecting with the scanning lines, common electrode lines are disposed between two adjacent scanning lines and being parallel to the scanning lines, a wiring area covers the scanning lines, the data lines and the common electrode lines and a plurality of test pins for testing, pixel electrodes connected to corresponding data lines being disposed in each pixel cell, the pixel electrodes of the display pixels and the common electrode lines are separated and insulated, the pixel electrode of the virtual pixels being connected with the common electrode line by a connecting hole, the scanning lines, the data lines and the common electrode lines being connected respectively with a corresponding test pin by a connecting line in the wring area.

A display device includes: a first substrate having a display area and a frame area; a second substrate facing the display area; a conductive layer disposed on the second substrate; electrode portions disposed in the frame area; joints corresponding one-to-one to the electrode portions; and a wire connecting the electrode portions together in series. Each of the electrode portions includes a first electrode and a second electrode. Each of the joints includes a first conductive portion and a second conductive portion, the first conductive portion electrically connecting together the conductive layer and the first electrode, the second conductive portion electrically connecting together the conductive layer and the second electrode. Between two of the electrode portions adjacent to each other, the wire connects together the first electrode of one of the two electrode portions and the second electrode of another of the two electrode portions.