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Display device and fingerprint recognition method thereof

A display device, fingerprint recognition technology, applied in the direction of electric solid device, semiconductor device, character and pattern recognition, etc., can solve the problems of finger unlocking trouble, complex structure, large space occupation, etc., to simplify the structure and preparation process, improve the sensitivity and accuracy, the effect of increasing magnification

Pending Publication Date: 2018-07-06
BOE TECH GRP CO LTD
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0002] At present, most of the fingerprint recognition methods in display devices are capacitive sensor fingerprint recognition, but this fingerprint recognition technology has the following disadvantages: 1) It is very troublesome to unlock the finger when it is wet or dirty; 2) It adopts a push-type capacitive sensor The keys of the display device for fingerprint recognition are easily damaged
At this stage, optical fingerprint recognition is attracting more and more attention. However, in the existing display devices using optical fingerprint recognition, it is necessary to set up a separate light source for the optical fingerprint recognition module, which has a complex structure, takes up a lot of space, and consumes a lot of power. It is not conducive to the thinning and miniaturization of display devices, and generally only can perform fingerprint recognition in a specific area, and cannot realize the full-screen fingerprint recognition function
[0003] Therefore, the current display devices still need to be improved

Method used

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  • Display device and fingerprint recognition method thereof
  • Display device and fingerprint recognition method thereof
  • Display device and fingerprint recognition method thereof

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Embodiment Construction

[0026] Embodiments of the present invention are described in detail below. The embodiments described below are exemplary only for explaining the present invention and should not be construed as limiting the present invention. If no specific technique or condition is indicated in the examples, it shall be carried out according to the technique or condition described in the literature in this field or according to the product specification. The reagents or instruments used were not indicated by the manufacturer, and they were all commercially available conventional products.

[0027] The present invention is based on the following knowledge and findings of the inventors:

[0028] At present, the fingerprint recognition method adopted by most display devices is capacitive sensing fingerprint recognition, but it is very troublesome to unlock when the fingers are wet or dirty, and fingerprint recognition by pressing capacitive sensing is easy to damage the keys of the display devi...

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Abstract

The invention provides a display device and a fingerprint recognition method thereof. The display device comprises an OLED display panel; a fingerprint photo-sensor array which is arranged on the backsurface of the OLED display panel; and a control device which is connected with the OLED display panel and the fingerprint photo-sensor array and used for controlling working of the fingerprint recognition function, wherein the specific display frame of the OLED display panel acts as the light source of the fingerprint photo-sensor array. The structure of the display device is effectively simplified, lighting and thinning and miniaturization of the display device can be facilitated by using the specific display frame of the OLED display panel as the light source of the fingerprint photo-sensor array, full-screen fingerprint recognition can be realized with no requirement for independently providing the light source for the fingerprint photo-sensor array, and thus the space occupation is small, the energy consumption is low and the cost is saved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a display device and a fingerprint identification method thereof. Background technique [0002] At present, most of the fingerprint recognition methods in display devices are capacitive sensor fingerprint recognition, but this fingerprint recognition technology has the following disadvantages: 1) It is very troublesome to unlock the finger when it is wet or dirty; 2) It adopts a push-type capacitive sensor The keys of the display device for fingerprint identification are easily damaged. At this stage, optical fingerprint recognition is attracting more and more attention. However, in the existing display devices using optical fingerprint recognition, it is necessary to set up a separate light source for the optical fingerprint recognition module, which has a complex structure, takes up a lot of space, and consumes a lot of power. Large size is not conducive to the thinning and m...

Claims

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Application Information

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IPC IPC(8): G06K9/00H01L27/32
CPCG06V40/1324G06V40/1365H10K59/60H10K59/871H10K59/65G06V40/1318G06F3/04164G06F3/0412G06F2203/04101G06V40/67H10K50/841H10K59/38H10K59/131
Inventor 李昌峰董学王海生刘英明丁小梁许睿王雷秦云科
Owner BOE TECH GRP CO LTD
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