Display panel and display device

Abstract

The invention relates to a display panel and a display device. The display panel comprises a first substrate, a second substrate and a liquid crystal layer filled between the first substrate and the second substrate; the second substrate comprises a pixel layer provided with a plurality of pixel units, and at least one fingerprint identification unit which is arranged in the second substrate and located at a gap of the pixel units. The display device comprises the display panel. The fingerprint identification unit is manufactured on a color film substrate of the display panel, so that the display function / touch control function / fingerprint identification function is integrated, and the cost and the thickness of the module are more optimized; due to the arrangement of a concentration layer,interference of light rays can be avoided, and interference between adjacent pixel units is reduced. Furthermore, the uniformity of light rays can be improved by adopting a surface light source, so that the imaging quality of the fingerprint identification unit is improved.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a display panel and a display device. Background technique [0002] In existing display devices such as smart phones, the fingerprint identification sensor is usually placed at the position of the menu key (home key). With the advent of the full screen, the borders around the display screen are getting narrower and the home button is cancelled. Placing the fingerprint recognition sensor on the back or side of the mobile phone has become an intermediate transition solution. Placing it under the display screen or in the screen will be a major development of fingerprint recognition. trend. [0003] Currently, the under-display fingerprint recognition sensors on the market use silicon as the substrate, which is costly and difficult to manufacture, and is separated from the display screen, and the fingerprint module takes up a certain amount of space. [0004] In addition, ...

AI Technical Summary

Problems solved by technology

[0003] Currently, the under-display fingerprint recognition sensors on the market use silicon as the substrate, which is costly and difficult to manufacture, and is separated from the display screen, and the fingerprint module takes up a certain amount of space.

[0004] In addition, the side-light light-emitting diode (LED) backlight mainly used in the current liquid crystal display panel on the market, the light provided by the backlight system is not uniform, and the utilization rate of the light source is low, resulting in brighter fingerprint images near the light-emitting diodes, and brighter fingerprints near the light-emitting diodes. The fingerprint image in a distant place is relatively dark, which affects the imaging quality of the optical fingerprint recognition sensor

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