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Fingerprint recognition module used under screen

A fingerprint recognition module, screen technology, applied in character and pattern recognition, acquisition/organization of fingerprints/palmprints, instruments, etc., can solve the problems of aging speed difference, high production difficulty, high price, etc., to achieve low cost, structure Simple, black spot removal effect

Pending Publication Date: 2018-08-24
MIKOLTA OPTICAL TECH CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

OLED screens consume a lot of power when displaying images with a white background (such as documents or websites)
Another disadvantage is the burn-in problem: due to the difference in the display of each pixel on the screen, the burn-in speed of each location is different
Such panels are very difficult to produce and expensive

Method used

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  • Fingerprint recognition module used under screen
  • Fingerprint recognition module used under screen
  • Fingerprint recognition module used under screen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] Please refer to Figure 1 to Figure 7 , Figure 11 to Figure 15 , the present invention provides a fingerprint identification module for below the screen, including a screen component, a miniature backlight lighting system installed under the screen component and an imaging system installed inside the miniature backlight lighting system, and the screen component includes a glass cover plate 110, the display screen 120 arranged under the glass cover 110, the light guide plate 130 arranged under the display screen 120 for illuminating the display screen 120, a light guide area 131 is arranged in the middle of the light guide plate 130, and the miniature backlight The lighting system includes a light guide member 140 for adjusting light and a light emitting member 190 for generating light. The light guide member 140 includes a reflective structure 150 for collecting and collimating the light emitted by the light emitting member 140. The lens 141, the outer surface 142 for...

Embodiment 2

[0104] Please refer to Figure 16 , the present invention provides a fingerprint identification module for the bottom of the screen, including a screen component, a miniature backlight lighting system installed under the screen component and an imaging system installed inside the miniature backlight lighting system, the screen component includes a glass cover plate 210, the glass cover plate 210 includes an upper surface 211 for placing on the fingers, a display screen 220 arranged under the glass cover plate 210, a light guide plate 230 arranged under the display screen 220 for illuminating the display screen 220, the A light guide area 231 is provided in the middle of the light guide plate 230. The miniature backlight lighting system includes a light guide member 240 for adjusting light and a light emitting member 290 for generating light. The light guide member 240 includes a reflective structure 250 for The condenser lens 241 for collecting and collimating the light emitte...

Embodiment 3

[0107] Please refer to Figure 17, the present invention provides a fingerprint identification module for the bottom of the screen, including a screen component, a miniature backlight lighting system installed under the screen component and an imaging system installed inside the miniature backlight lighting system, the screen component includes a glass cover plate 310, the glass cover 310 includes an upper surface 11 for placing fingers, a display screen 320 arranged below the glass cover 310, a light guide plate 330 arranged below the display screen 320 for illuminating the display screen 320, the guide A light guide area 331 is arranged in the middle of the light plate 330. The miniature backlight lighting system includes a light guide member 340 for adjusting light and a light emitting member 390 for generating light. The light guide member 340 includes a reflective structure 350 for reflecting light. The condenser lens 341, which collects and collimates the light emitted b...

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Abstract

The invention discloses a fingerprint recognition module used under a screen. The fingerprint recognition module comprises a screen component, a miniature backlight illumination system installed underthe screen component, and an imaging system installed in the miniature backlight illumination system. The screen component is installed above the micro backlight illumination system. The screen component includes a glass cover plate, a display screen arranged under the glass cover plate, and a light guide plate which is arranged under the display screen and is used for illuminating the liquid crystal display. The light guide plate is arranged above a light guide component. The miniature backlight illumination system includes the light guide component and a light emitting component which is installed at a side of the light guide component. The imaging system comprises an imaging lens for imaging and an image sensor which is installed under the imaging lens and is used for receiving an image. The fingerprint recognition module has the advantages of a simple structure, low cost, a long life and good reliability, at the same time, black spots caused by insufficient local brightness on thedisplay screen caused by holes of the light guide plate can be eliminated, and the fingerprint recognition module can be used for a common LCD touch display screen.

Description

technical field [0001] The present invention relates to a fingerprint identification module, more specifically, relates to a fingerprint identification module used for mobile phones, tablets, notebook computers, electronic locks, and identification devices under the screen. Background technique [0002] Most of the popular fingerprint identification modules for mobile phones on the market are capacitive fingerprint sensor components, which use silicon wafer microarrays and conductive subcutaneous electrolytes to form an electric field, and the fluctuation of fingerprints will cause the gap between the two There are different changes in the pressure difference, so that accurate fingerprint determination can be realized. However, since the surface of the sensor is made of silicon material, it is easily damaged, resulting in reduced service life. And the fingerprint image is formed by the grooves of the fingerprint and the bumps between the ridges, so it is difficult to identi...

Claims

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Application Information

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IPC IPC(8): G06K9/00
CPCG06V40/1324G06V40/1318
Inventor 郎欢标
Owner MIKOLTA OPTICAL TECH CO
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