Liquid crystal display array substrate and disconnection detection method thereof
A liquid crystal display, array substrate technology, applied in the field of liquid crystal display array substrate and its disconnection detection
Active Publication Date: 2011-12-28
K TRONICS (SUZHOU) TECH CO LTD +1
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Problems solved by technology
[0005] The purpose of the present invention is to provide a liquid crystal display array substrate and its disconnection detection method, which can effectively solve the technical defect that the existing detection method cannot accurately detect the faulty disconnection
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[0038] figure 1 It is a schematic structural diagram of the first embodiment of the liquid crystal display array substrate of the present invention, such as figure 1 As shown, in this embodiment, the liquid crystal display array substrate includes a display area 1 and a detection area 2 , and the detection area 2 is located at the periphery of the display area 1 . M gate lines 11 and N data lines 12 are arranged in the display area 1, M and N are natural numbers, M gate lines 11 and N data lines 12 define M×N sub-pixel areas, and each sub-pixel area A pixel electrode and a thin film transistor are formed therein, and the above structure is the same as the array structure in the prior art, and will not be repeated here. A grid test line 21 and a grid shift selection switch device 22 are arranged in the detection area 2, and the grid test line 21 is arranged on one side of the display area 1, and is connected with one end of all M grid lines 11, and is used for feeding M The...
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The invention provides an array substrate of a liquid crystal display and a disconnection detection method thereof. The array substrate includes a display area and a detection area. The display area is provided with gate lines and data lines as signal lines. The detection area is provided with test lines and a shift selection switch device. The test line is connected to one end of the signal line. The other end is connected with a displacement selection switch device, and the displacement selection switch device is connected with the detection equipment for judging the disconnection of the signal line. The disconnection detection method includes: the test line inputs loading signals to all the grid lines or data lines; the shift selection switch device sequentially selects the grid lines or data lines, and outputs the grid line signals or data line signals to the detection equipment; Signal or data line signal, to determine whether the gate line or data line is disconnected. The present invention inputs loading signals to each signal line through a test line, and collects signals on each signal line through a shift selection switch device, so that it can effectively and accurately detect the disconnection of a grid line or a data line.
Description
technical field [0001] The invention relates to liquid crystal display technology, in particular to a liquid crystal display array substrate and a disconnection detection method thereof. Background technique [0002] A Liquid Crystal Display (LCD for short) has the advantages of ultra-thinness, no radiation, no flicker, and low energy consumption, and has become a current mainstream display. In the liquid crystal display manufacturing process, the inspection of the liquid crystal display array substrate is an important link. [0003] Figure 13 It is a schematic diagram of defective detection of liquid crystal displays in the prior art, which utilizes the deflection characteristic of liquid crystal molecules as the electric field changes. like Figure 13 As shown, the defect detection equipment in the prior art includes a Voltage Image Optics System (Voltage Image Optics System, VIOS for short) 101 , a modulator 102 , a liquid crystal 104 for testing and a reflector 105 . ...
Claims
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IPC IPC(8): G02F1/1362G02F1/13
Inventor 李丽彭志龙王威朴春培
Owner K TRONICS (SUZHOU) TECH CO LTD