Light sensing method of light sensing device

A light-sensing and light-sensing pixel technology, which is applied in instruments, character and pattern recognition, printing image acquisition, etc., to achieve the effects of improving sensing speed, simple control timing, and strong anti-image distortion ability

Active Publication Date: 2018-06-05
柳州梓博科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing optical fingerprint identification structure applied to mobile terminals still needs to be improved.

Method used

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  • Light sensing method of light sensing device
  • Light sensing method of light sensing device
  • Light sensing method of light sensing device

Examples

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Embodiment Construction

[0049] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0050] In the description of the present invention, it should be understood that the terms "first" and "second" are used for description purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of said features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined. "Contact" or "touchin...

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Abstract

The invention discloses a light sensing method of a light sensing device. The light sensing device includes a plurality of light sensing pixels. First scanning drive signals and second scanning drivesignals are provided to all light sensing pixels so as to enable all the light sensing pixels to start light sensing when a first predetermined time arrives and to end light sensing when a third predetermined time arrives, so that electric signals generated when the light sensing pixels execute light sensing are latched. After all the light sensing pixels end light sensing, an output control signal is provided to the light sensing pixels in sequence so as to control output of latch electric signals corresponding to the light sensing pixels.

Description

technical field [0001] The invention relates to a photo-sensing method of a photo-sensing device used for sensing biometric information. Background technique [0002] At present, fingerprint recognition has gradually become a standard component of electronic products such as mobile terminals. Since optical fingerprint recognition has stronger penetrating ability than capacitive fingerprint recognition, it is a future development trend for optical fingerprint recognition to be applied to mobile terminals. However, the existing optical fingerprint identification structure applied to mobile terminals still needs to be improved. Contents of the invention [0003] The embodiments of the present invention aim to solve at least one of the technical problems in the prior art. Therefore, the embodiments of the present invention need to provide a photosensitive device, a photosensitive method thereof, and an electronic device. [0004] A light-sensing method of a light-sensing de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06V40/1318
Inventor 李问杰
Owner 柳州梓博科技有限公司
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