Display panel and display device

Abstract

The invention discloses a display panel and a display device, which relates to the technical field of display. The display panel comprises a step routing area. The display panel comprises an array substrate and a color film substrate that are arranged facing each other, wherein the array substrate comprises a first substrate and a signal routing arranged at one side, facing the color film substrate, of the first substrate, at least part of the signal routing is located at the step routing area, the color film substrate comprises a second substrate where a laser cutting area is arranged, and orthographic projection of the laser cutting area on a plane of the first substrate is within an area delimited by the step routing area; and a laser barrier layer, located in the non-display area, is arranged between the signal routing and the second substrate, wherein at least part of orthographic projection of the laser barrier layer on a plane of the second substrate is located in the laser cutting area, and orthographic projection of the laser barrier layer on the plane of the first substrate at least covers a part of orthographic projection in the signal routing that is located in the laser cutting area. By introducing the laser barrier layer the damage to the signal routing during a laser cutting is avoided.

Description

technical field [0001] The present invention relates to the field of display technology, and more specifically, to a display panel and a display device. Background technique [0002] In recent years, the demand for flexibility of liquid crystal display devices has been increasing, and in response to this, the development of plastic substrates as flexible base materials has also progressed. In the manufacture of existing liquid crystal display devices, multi-layer processing is usually used, that is, glass is used as the base material, and an array substrate and a color filter substrate are formed on a motherboard (large substrate), and the color filter substrate It is attached to the array substrate to form a motherboard with the array substrate and the color filter substrate. [0003] In the manufacturing process of the existing display panel, the whole mother board is usually cut to obtain a display panel with a suitable size, and laser cutting is a commonly used method. ...

AI Technical Summary

Problems solved by technology

However, in the process of laser cutting, due to the high energy density of the laser, a large thermal stress is generated at the cutting position

Since there are many signal traces on the array substrate, in the process of cutting the color filter substrate opposite to the array substrate, the thermal stress generated at the laser cutting position is very likely to spread to the corresponding signal traces on the array substrate. In the area, the signal traces are likely to be blown under the action of laser energy, which will cause poor display or no display on the display panel.

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