Abstract: A test circuit and method for a display panel, and a display panel. The test circuit includes a panel test sub-circuit configured to control panel test switch units to turn on or turn off, to transmit multiple panel test signals; an array test sub-circuit configured to control array test switch units to turn on or turn off, to output short circuit determination signals at test terminals according to the multiple panel test signals, which are used to determine whether there is a short-circuited data line in the display panel; at least one set of the array test switch units are turned on in a test sub-period, and under a condition that the at least one set of the array test switch units are turned on, the panel test signals corresponding to different types of sub-pixels in the display panel change alternately to an effective level.

Abstract: A device and system for detecting a touch panel are used for detecting a metal mesh on the touch panel, where row direction channels and column direction channels on the metal meshes each include a plurality of touch units which are connected with each other. In the device for detecting a touch panel, a signal transceiving component includes a signal generating unit and a signal receiving unit, which are configured to be arranged on the same side of the metal meshes in preset relative positions, and send and receive a signal through capacitive coupling with the metal mesh, respectively; a defect detecting unit is configured to detect each of a plurality of touch units in the metal meshes based on a detection signal received by the signal receiving unit.

Abstract: A test circuit and method for a display panel, and a display panel. The test circuit includes a panel test sub-circuit configured to control panel test switch units to turn on or turn off, to transmit multiple panel test signals; an array test sub-circuit configured to control array test switch units to turn on or turn off, to output short circuit determination signals at test terminals according to the multiple panel test signals, which are used to determine whether there is a short-circuited data line in the display panel; at least one set of the array test switch units are turned on in a test sub-period, and under a condition that the at least one set of the array test switch units are turned on, the panel test signals corresponding to different types of sub-pixels in the display panel change alternately to an effective level.

Abstract: A device and system for detecting a touch panel are used for detecting a metal mesh on the touch panel, where row direction channels and column direction channels on the metal meshes each include a plurality of touch units which are connected with each other. In the device for detecting a touch panel, a signal transceiving component includes a signal generating unit and a signal receiving unit, which are configured to be arranged on the same side of the metal meshes in preset relative positions, and send and receive a signal through capacitive coupling with the metal mesh, respectively; a defect detecting unit is configured to detect each of a plurality of touch units in the metal meshes based on a detection signal received by the signal receiving unit.

Abstract: According to embodiments of the present invention, there are disclosed a laser repairing apparatus and a laser repairing method for a substrate. The laser repairing apparatus comprises: a laser emitter; and a light transmission sheet with a light-shielding pattern, wherein a laser emitted by the laser emitter is used to cut a superfluous remainder of an electrode on the substrate, the light transmission sheet is located between the laser emitter and the substrate, and as compared with a pattern of the electrode on the substrate, the light-shielding pattern on the light transmission sheet has the same shape and a size at a predetermined ratio.

Abstract: An apparatus for detecting an array substrate comprises: a transparent carrier for supporting an array substrate to be detected thereon; a light source disposed on one side of the transparent carrier; and a modulator disposed on the other side in parallel with the transparent carrier. The modulator comprises a liquid crystal layer and two transparent substrate layers disposed on both sides of the liquid crystal layer, and one transparent substrate layer away from the transparent carrier is a first transparent conductive substrate layer, and a second polarizer is disposed thereon. A first polarizer is disposed between the light source and the transparent carrier, so that the light emitted from the light source is transmitted through the first polarizer to the transparent carrier. A light receiver receives the light emitted from the light source and then transmitted through the transparent carrier, the array substrate and the modulator.

Abstract: According to embodiments of the present invention, there are disclosed a laser repairing apparatus and a laser repairing method for a substrate. The laser repairing apparatus comprises: a laser emitter; and a light transmission sheet with a light-shielding pattern, wherein a laser emitted by the laser emitter is used to cut a superfluous remainder of an electrode on the substrate, the light transmission sheet is located between the laser emitter and the substrate, and as compared with a pattern of the electrode on the substrate, the light-shielding pattern on the light transmission sheet has the same shape and a size at a predetermined ratio.

Abstract: An apparatus for detecting an array substrate, comprising: a transparent carrier for supporting an array substrate to be detected thereon; a light source disposed on one side of the transparent carrier; a modulator disposed on the other side of the transparent carrier in parallel with the transparent carrier, and comprising a liquid crystal layer and two transparent substrate layers disposed on both sides of the liquid crystal layers, wherein one transparent substrate layer away from the transparent carrier is a first transparent conductive substrate layer, and a second polarizer is disposed on the first transparent conductive substrate layer; a first polarizer, disposed between the light source and the transparent carrier, so that the light emitted from the light source is transmitted through the first polarizer to radiate on the transparent carrier; and a light receiver receiving the light emitted from the light source and then transmitted through the transparent carrier, the array substrate to be detected