Display panel, driving method thereof, and display device

A display panel and display technology, applied in static indicators, character and pattern recognition, printing image acquisition, etc., can solve problems such as weak detection light intensity, OLED screen production capacity and yield rate cannot be widely used in a large scale, and fingerprint imaging cannot be performed , to achieve the effect of improving clarity and sensitivity
CN110441946BActive Publication Date: 2022-06-28BOE TECH GRP CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BOE TECH GRP CO LTD
Publication Date
2022-06-28

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Abstract

The invention provides a display panel, a driving method thereof, and a display device. The display panel includes a backlight module, a display screen and a touch object recognition element, the display screen is arranged on the light emitting side of the backlight module, the touch object recognition element is arranged on the side of the backlight module away from the display Display light is provided, and the touch object identification element is used to identify the touch object that touches the display screen to unlock the display screen. An auxiliary imaging structure is provided in the backlight module, and the auxiliary imaging structure is arranged on the touch object identification element on the backlight module. In the orthographic projection area of ​​the touch object, it is used to receive the light reflected by the touch object and the backlight light, and make the interference light of the two enter the touch object recognition element. When the touch object recognition element in the display panel realizes fingerprint recognition under the screen, even if the thickness of the display screen is large, it will not affect the intensity of the detection light received by the touch object recognition element, so that the touch object recognition element can recognize the touch object. for clear identification.
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Description

technical field

[0001] The invention belongs to the field of display technology, and in particular relates to a display panel, a driving method thereof, and a display device. Background technique

[0002] At present, the use of optical under-screen fingerprint unlocking functions on OLED (Organic Light-Emitting Diode, organic-electric laser display or organic light-emitting semiconductor) mobile phones is becoming more and more common, but OLED screens cannot be widely used due to production capacity and yield. LCD (Liquid Crystal Display) liquid crystal display due to the excessive thickness of the liquid crystal, makes the detection light intensity of the optical under-screen fingerprint recognition weak, and cannot clearly image the fingerprint.

[0003] At present, since the mainstream mobile phones on the market are still mainly LCD, how to make the optical under-screen fingerprint recognition technology better applied to the LCD screen has become an urgent problem to b...

Claims

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