A flexible substrate, its state detection method, and a display device

Abstract

Embodiments of the present invention provide a flexible substrate, a method for detecting its state, and a display device, which relate to the field of display technology and can detect the state of a flexible substrate in a timely and effective manner. The flexible substrate includes: a base substrate; a driver chip arranged on the substrate substrate, the edge of the driver chip includes a first edge and a second edge perpendicular to each other, and the length of the first edge is smaller than the length of the second edge; At least one detection terminal group on the substrate, each detection terminal group includes a target signal receiving terminal and a detection signal output terminal; the metal wiring connecting the target signal receiving terminal and the detection signal output terminal of each detection terminal group, and the metal wiring in some areas Extending along the third edge of the base substrate within a predetermined distance range, the third edge is an edge adjacent to a first edge in the base substrate, and in the extending direction of the second edge, a third edge, A first edge, another first edge and another third edge are arranged in sequence.

Description

[Technical field] [0001] The present invention relates to the field of displaying techniques, and more particularly to a flexible substrate and a state detecting method thereof, a display device. 【Background technique】 [0002] In order to reduce the border width of the display panel, the drive chip on the display panel is typically placed on a flexible substrate, and then bound the flexible substrate provided with the drive chip to the display panel, and bent toward the back side of the display panel. Realize the narrow edge frame design of the display device. [0003] During the production process of the flexible substrate, such as figure 1 As shown, the flexible substrate 10 is shipped in the form of a coil, which is bound to a separate flexible substrate by a cutting process, binding in the display panel. However, during the cutting process, the edges of the flexible substrate may be slightly torn, or the edges caused by the low cutting accuracy are cut into phenomenon. For e...

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Problems solved by technology

[0004] When the edge of the flexible substrate is slightly torn, after it is bound to the display panel, the tearing degree of the edge will become larger and larger, which will affect the installation stability of the flexible substrate, and then affect the normal display of the display panel

When the edge of the flexible substrate is cut off, it will cause the pins in the binding area to be cut, and after it is bound to the display panel, it will also affect the normal display of the display panel

Moreover, when the edge of the flexible substrate is abnormal due to the cutting process, if it is not detected in time, it will lead to subsequent cutting of many problematic flexible substrates, resulting in waste of materials

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