Fracture detection device and fracture detection method
The technology of a detection device and detection method, which is applied in the direction of material defect testing, can solve the problems of low detection accuracy, low detection efficiency, and easy breakage of wiring, so as to improve detection efficiency, prevent missed detection and misjudgment, and improve detection efficiency. The effect of accuracy
Inactive Publication Date: 2021-11-26
HEFEI VISIONOX TECH CO LTD
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Problems solved by technology
When the bending area 130 has a small bending radius R, the wires in the bending area 130 are prone to breakage, which leads to poor display in the display area 110 of the OLED display panel.
[0004] In the related art, it is usually manually checked whether the wiring in the bending area 130 of the OLED display panel 100 is broken, and this method has low detection efficiency and low detection accuracy.
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[0037] like figure 1 and figure 2 As shown in the background art, the manual detection of whether the wiring 131 in the bending area 130 of the OLED display panel 100 is broken can be detected with low efficiency and low detection accuracy. There are many traces 131 in the area 130 , about several hundred, and the traces 131 are relatively thin, and the line width of the traces 131 is usually 12 microns. During manual inspection, inspectors observe under a microscope whether the identification wire 131 is broken. Inspectors need to focus and move the sample multiple times to complete the inspection of the entire bending area 130. In addition, the cracks after the wire 131 is broken are usually small, and the inspectors are easily affected by external factors such as foreign objects on the OLED display panel 100. Both efficiency and detection accuracy are low.
[0038] In view of the above problems, the embodiment of the present application provides a fracture detection dev...
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The invention provides a fracture detection device and a fracture detection method, relates to the technical field of detection devices, and is used for solving the technical problems of low detection efficiency and low detection accuracy of wiring fracture in a bending area of an OLED display panel. The fracture detection device comprises a supporting table, a heating device, a shooting device and a processor, the supporting table is used for bearing an OLED display panel, the heating device is used for heating a bending area of the OLED display panel placed on the supporting table, and the shooting device is used for collecting an infrared image of the bending area of the OLED display panel; the processor is in signal connection with the shooting device, and the processor carries out fracture analysis on the infrared image; and when the processor extracts edge features from the infrared image, determining that the wiring of the bending area is broken. Fracture information of wiring is converted into the heat information of wiring, the heat information is analyzed through the processor, whether the wire is fractured or not is judged, missing detection and misjudgment are not likely to occur, and the detection efficiency and the detection accuracy are improved.
Description
technical field [0001] The present application relates to the technical field of detection devices, in particular to a fracture detection device and a fracture detection method. Background technique [0002] Organic Light Emitting Display (OLED) has many characteristics such as self-illumination, fast response, wide viewing angle, and can be fabricated on flexible substrates, and is increasingly used in high-performance display fields such as flexible display devices. middle. [0003] With the advancement of display technology, OLED display panels are developing toward narrow or even borderless borders. In order to achieve narrow or even borderless borders, the method of pad bending (Pad bending) is usually used to reduce the border width of OLED display panels to improve OLED display panels. screen-to-body ratio. like figure 1 As shown, the OLED display panel 100 includes a display area 110, a pad area 120 and a bending area 130. The pad area 120 is located at the back o...
Claims
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Login to View More IPC IPC(8): G01N25/72
CPCG01N25/72
Inventor 唐书喜
Owner HEFEI VISIONOX TECH CO LTD