Methods and Apparatuses of touch-fingerprinting Display

• US 20150109214A1
• Filed: 10/22/2013
• Published: 04/23/2015
• Est. Priority Date: 10/22/2013
• Status: Abandoned Application

• Current Assignee: Weidong Shi, Yang Lu
• Original Assignee: Weidong Shi, Yang Lu
• Inventors: Shi, Weidong, Lu, Yang
• Application Number:
  US14/059,592
• Publication Number:
  US 20150109214A1
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/04166 Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184
• CPC Class Codes: G06F 3/042 by opto-electronic means
• CPC Class Codes: G06F 3/044 by capacitive means
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes
• CPC Class Codes: G06V 40/13 Sensors therefor

Abstract

The present invention describes methods and apparatuses for sensing touches and/or fingerprint images with an integrated touch-fingerprinting display comprising, a pattern of display pixels wherein said display pixels are controllable components of an electronic display, a pattern of fingerprint imaging cells, a display driver coupled with the display pixels wherein said display driver can control states of the display pixels, and a fingerprint readout circuit coupled with the fingerprint imaging cells. Furthermore, a computing apparatus can display a user interface on a touch-fingerprinting display, detect touches from a user, and then scan one or multiple fingerprint images from the user. In further embodiments, the computing apparatus can compute a biometric token based on the scanned fingerprint data and use the biometric token as identity proof to access a local resource or networked resource.

Claims

1. A touch-fingerprinting display apparatus comprising,

a pattern of display pixels wherein said display pixels are controllable components of an electronic display;

a pattern of fingerprint imaging cells wherein said fingerprint imaging cells are interspersed among or placed on top of or placed beneath the display pixels;

a display driver coupled with the display pixels wherein said display driver can control states of the display pixels; and

a fingerprint readout circuit coupled with the fingerprint imaging cells wherein said fingerprint readout circuit senses output of the fingerprint imaging cells.

2. The apparatus in claim 1 wherein the display pixel is an electrophoretic display pixel.

3. The apparatus in claim 1 wherein the display pixel is an organic light emitting diode display pixel.

4. The apparatus in claim 1 wherein the display cell is a liquid crystal display pixel.

5. The apparatus in claim 4 wherein the liquid crystal display cell is a ferroelectric liquid crystal display pixel.

6. The apparatus in claim 1 wherein the fingerprint imaging cell further comprising a capacitive sensing electrode coupled with one or a plurality of thin-film transistors.

7. The apparatus in claim 6 wherein the capacitive sensing electrode further comprising optically transparent conductive material.

8. The apparatus in claim 1 wherein the fingerprint imaging cell further comprising an optical imaging sensor or infrared imaging sensor.

9. The apparatus in claim 8 wherein the fingerprint imaging cell further comprising one or a plurality of micro-lens.

10. The apparatus in claim 1 wherein the fingerprint imaging cell is placed as a neighbor of one or a plurality of display pixels.

11. A touch-fingerprinting controller apparatus wherein said touch-fingerprinting controller apparatus can be coupled with a touch-fingerprinting display wherein said touch-fingerprinting display comprising a pattern of display pixels and a pattern of fingerprint imaging cells, said touch-fingerprinting controller apparatus comprising,

a touch sensing controller wherein said touch sensing controller can determine touch location from output of the fingerprint imaging cells or output of the touch-fingerprinting display;

and

a fingerprint imaging controller wherein said fingerprint imaging controller is coupled with the fingerprint imaging cells and/or a fingerprint readout circuit wherein said fingerprint readout circuit is coupled with the fingerprint imaging cells.

12. The apparatus in claim 11 further comprising a display controller wherein said display controller can instruct the touch-fingerprinting display to display an image by switching the states of the display pixels.

13. The apparatus in claim 11 further comprising a sensing resolution switching unit wherein said sensing resolution switching unit can select a higher sampling resolution of fingerprint imaging cells for scanning fingerprint and/or select a lower sampling resolution of fingerprint imaging cells for detecting touch presence.

14. A computing apparatus comprising,

a touch-fingerprinting display wherein said touch-fingerprinting display further comprising, a pattern of display pixels, and a pattern of fingerprint imaging cells wherein said fingerprint imaging cells are interspersed among or placed on top of or placed beneath the display pixels, and a display driver coupled with the display pixels wherein said display driver can control states of the display pixels, and a fingerprint readout circuit coupled with the fingerprint imaging cells wherein said fingerprint readout circuit controls and/or senses output of the fingerprint imaging cells;

a touch-fingerprinting controller wherein said touch-fingerprinting controller is coupled with a touch-fingerprinting display wherein said touch-fingerprinting controller comprising, a touch sensing controller wherein said touch sensing controller can determine touch presence and/or touch location from output of the fingerprint imaging cells or from output of the touch-fingerprinting display, and a fingerprint imaging controller wherein said fingerprint imaging controller is coupled with the fingerprint imaging cells and/or the fingerprint readout circuit;

at least one transceiver;

at least one electronic storage device; and

at least one control processing element wherein said control processing element can be programmed to, instruct the touch-fingerprinting display to show one or a plurality of user interface artifacts, and instruct the touch-fingerprinting controller to scan one or a plurality of fingerprint images.

15. The apparatus in claim 14 further comprising an identity verifier wherein said identity verifier can compare a fingerprint image or compare features extracted from a fingerprint image with one or a plurality of registered fingerprint templates wherein said registered fingerprint templates are created from fingerprint images of one or a plurality of authorized persons.

16. The apparatus in claim 14 further comprising a supper-resolution processor that creates a fingerprint image with enhanced resolution from one or a plurality of low resolution fingerprint images.

17. The apparatus in claim 14 further comprising a user interface processor wherein said user interface processor can instruct the touch-fingerprinting display to show one or a plurality of user interface artifacts.

18. The user interface artifact in claim 17 is a login icon or submit button.

19. The apparatus in claim 14 further comprising a biometric processor wherein said biometric processor can create one or a plurality of electronic biometric tokens from one or a plurality of fingerprint images.

20. The apparatus in claim 19 further comprising a transaction processor wherein said transaction processor can transmit said electronic biometric token over one or a plurality of transceivers.