Touch display screen

Abstract

The invention provides a touch display screen. The touch display screen comprises a light emitting panel and a touch panel arranged on the upper surface of the light emitting panel; light emitting diodes and a circuit driving all the light emitting diodes to work are arranged on the light emitting panel; a light blocking plate is arranged on the lower surface of the light emitting panel, and an image sensing chip is arranged on the lower surface of the light blocking plate; light holes are formed in the light blocking plate; the area, corresponding to the light hole view angle, of the light emitting panel is arranged transparently, and the image sensing chip is arranged corresponding to the light hole view angle. According to the touch display screen, the area, corresponding to the light hole view angle, of the light emitting panel is transparently arranged, and the image sensing chip is arranged corresponding to the light hole view angle. In this way, due to the fact that the size ofthe light holes is far smaller than the size of other parts, small hole imaging can be formed at the light holes, light rays shining on the image sensing chip form veins of the part, touched by a user, of the display screen, and the touch display screen has the fingerprint identification function.

Description

technical field [0001] The invention relates to the technical field of LED display screens, in particular to a touch display screen. Background technique [0002] In order to ensure user privacy and prevent information leakage, many smart terminals are currently equipped with fingerprint recognition buttons to use the fingerprint recognition device to identify the user's fingerprint information and use it as a basis for unlocking. In order to set the fingerprint identification button, the side of the display screen of the smart device needs to be provided with a hole area for placing the fingerprint identification button, resulting in a decrease in the effective display area of ​​the surface where the display screen is located. [0003] At present, the color display screen using LED technology is the trend of future terminal equipment to realize the display function. For example, the newly released IphoneX smart phone has adopted OLED display screen; based on the considerati...

AI Technical Summary

Problems solved by technology

In order to set the fingerprint identification button, the side of the display screen of the smart device needs to be provided with a hole area for placing the fingerprint identification button, resulting in a decrease in the effective display area of ​​the surface where the display screen is located.

[0003] At present, the color display screen using LED technology is the trend of future terminal equipment to realize the display function. For example, the newly released IphoneX smart phone has adopted OLED display screen; based on the consideration of making full use of the effective display area, IphoneX canceled the classic fingerprint identification button , Instead, the image recognition system is used for user identification and unlocking; however, such an unlocking method may cause problems due to ambient light and other issues

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