公开(公告)号：US20220189196A1

公开(公告)日：2022-06-16

申请号：US17548602

申请日：2021-12-13

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： WEILUN SHIH ,  WU-WEI LIN

IPC: G06V40/12 ,  G06F3/041 ,  G06V10/22

Abstract: A method and device of fingerprint image generation for saving memory. The method includes generating a first fingerprint image of an original data size according to a plurality of first analog sensing signals which are read from a fingerprint sensor array before an exposure period ends. Then the first fingerprint image represented by a first data size which is equivalent to or smaller than the original data size is stored. a second fingerprint image of the original data size is generated after generating the first fingerprint image of the original data size according to a plurality of second analog sensing signals which are read from the fingerprint sensor array during the exposure period. The second fingerprint image represented by a compressed data size smaller than the original data size is then stored.

公开(公告)号：US20210109639A1

公开(公告)日：2021-04-15

申请号：US17037763

申请日：2020-09-30

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： TZU-WEN HSIEH ,  WEILUN SHIH ,  TING-HSUAN HUNG ,  HUANG-CHIN TANG

IPC: G06F3/041 ,  G06K9/00 ,  G09G3/20

Abstract: A single-chip device for driving a panel including fingerprint sensing pixels, display pixels and touch sensors, electronic module therefor, and electronic apparatus are provided. The single-chip device comprises a main body, a first group of pads and a second group of pads disposed in the main body. The first group of pads comprise first pads for driving the fingerprint sensing pixels, and are disposed on at least one of a left portion and a right portion of the main body with respect to an axis. The second group of pads comprise second pads for driving the display pixels and the touch sensors, and are disposed on at least another one of the left portion and the right portion, wherein at least one group of the first group of pads and the second group of pads are disposed only on the one of the left portion and the right portion.

公开(公告)号：US20240249548A1

公开(公告)日：2024-07-25

申请号：US18625159

申请日：2024-04-02

Applicant: Novatek Microelectronics Corp.

Inventor： WEILUN SHIH ,  WU-WEI LIN

IPC: G06V40/12 ,  G06F3/041 ,  G06V10/22

CPC classification number: G06V40/12 ,  G06F3/0416 ,  G06V10/235

Abstract: A method and device of fingerprint image generation for saving memory are introduced. The method includes receiving a plurality of touch sensing values from a touch display panel and determining which touch sensing electrodes detect a touch event. An area corresponding to a number of touch sensing electrodes, which are a part of a plurality of touch sensing electrodes determined as detecting the touch event, is taken as an effective fingerprint area. The effective fingerprint area is determined by comparing a preset value and touch sensing values sensed by the plurality of touch sensing electrodes those are determined as detecting the touch event. The method further performs fingerprint sensing in a fingerprint readout area and storing a first fingerprint image corresponding to the effective fingerprint area .

公开(公告)号：US20210109638A1

公开(公告)日：2021-04-15

申请号：US17037760

申请日：2020-09-30

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： TZU-WEN HSIEH ,  WEILUN SHIH ,  TING-HSUAN HUNG ,  HUANG-CHIN TANG

IPC: G06F3/041 ,  G06K9/00 ,  G09G3/20

Abstract: A single-chip device for driving a panel including fingerprint sensing pixels, display pixels and touch sensors, electronic module therefor, and electronic apparatus including the single-chip device are provided. The single-chip device comprises a main body, a first group of pads and a second group of pads disposed in the main body. The main body has a left portion and a right portion with respect to an axis. The first group of pads comprise a plurality of first pads for driving the fingerprint sensing pixels, are disposed on both the left portion and the right portion and configured to be coupled to the fingerprint sensing pixels. The second group of pads comprise a plurality of second pads for driving the display pixels and the touch sensors, are disposed on both the left portion and the right portion and configured to be coupled to the panel.