Detection circuit

Abstract

The invention provides a detection circuit. The detection circuit comprises a first detection line group, a second detection line group, an alignment line group and a control module, wherein the first detection line group comprises a plurality of main detection lines, and the first detection line group is connected with a display panel; the second detection line group comprises a plurality of secondary detection lines, and the second detection line group and the first detection line group are arranged relatively; the second detection line group is connected with the display panel; the alignment line group comprises a plurality of alignment lines, and the alignment line group is connected with the first detection line group and the second detection line group respectively; and the control module is used for disconnecting the first detection line group and the second detection line group when the display panel is detected. According to the detection circuit provided by the invention, the defective detection rate of the display panel can be improved, and the display effect is improved.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of displays, in particular to a detection circuit. [0003] 【Background technique】 [0004] The HVA alignment technology mainly uses the polymers in the liquid crystal to polymerize under the combined action of ultraviolet light and electric field to realize automatic alignment of the liquid crystal. Its alignment process: First, a certain proportion of high-purity reactive liquid crystals (phototactic monomers, such liquid crystals have a liquid crystal nucleus of ordinary liquid crystal molecules and one or more acrylic groups at the end) are mixed into the VA liquid crystal. Reactive light energy groups); then a voltage is applied between the upper and lower substrates to make the liquid crystal molecules generate a pre-tilt angle; then after ultraviolet light in a specific wavelength range is irradiated from the side of the array substrate, the reactive liquid crystal polymerizes into a polymer n...

AI Technical Summary

Problems solved by technology

[0006] The existing design of the detection circuit can be used for single-drive detection and double-drive detection of the display panel, that is, the bilateral detection circuit of the panel can input test signals from both sides, so that the rate of defective missed detection can be reduced; however, the HVA solidified signal can only Single-side input, because the load of a large-size panel is generally large, it may cause a large difference in the delay of the input signals on both sides of the panel, resulting in inconsistent curing effects, and eventually resulting in poor display of the panel

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