Multifunctional pixel and display

• US 10,031,602 B2
• Filed: 03/24/2017
• Issued: 07/24/2018
• Est. Priority Date: 06/03/2013
• Status: Expired due to Fees

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Kitchens, II, Jack Conway, Schneider, John Keith, Burns, David William, Ganti, Suryaprakash
• Primary Examiner(s): Chen, Wen-Ying P
• Application Number:
  US15/469,409
• Publication Number:
  US 20170199610A1
• Time in Patent Office: 487 Days
• CPC Class Codes: G01S 7/52085 Details related to the ultrasound signal acquisition, e.g. scan sequences control of medical diagnostic ultrasound devices A61B8/54
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G02F 1/133514 Colour filters
• CPC Class Codes: G02F 2201/52 RGB geometrical arrangements
• CPC Class Codes: G06F 1/3215 Monitoring of peripheral devices
• CPC Class Codes: G06F 18/256 of results relating to different input data, e.g. multimodal recognition
• CPC Class Codes: G06F 2203/04106 Multi-sensing digitiser, i.e. digitiser using at least two different sensing technologies simultaneously or alternatively, e.g. for detecting pen and finger, for saving power or for improving position detection
• CPC Class Codes: G06F 3/02 Input arrangements using manually operated switches, e.g. using keyboards or dials
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/041661 using detection at multiple resolutions, e.g. coarse and fine scanning; using detection within a limited area, e.g. object tracking window
• CPC Class Codes: G06F 3/042 by opto-electronic means
• CPC Class Codes: G06F 3/0421 by interrupting or reflecting a light beam, e.g. optical touch-screen
• CPC Class Codes: G06F 3/043 using propagating acoustic waves
• CPC Class Codes: G06F 3/044 by capacitive means
• CPC Class Codes: G06V 10/811 the classifiers operating on different input data, e.g. multi-modal recognition
• CPC Class Codes: G06V 40/1306 non-optical, e.g. ultrasonic or capacitive sensing
• CPC Class Codes: G06V 40/1318 using electro-optical elements or layers, e.g. electroluminescent sensing
• CPC Class Codes: H01H 2219/066 Lens
• CPC Class Codes: H04N 5/33 Transforming infrared radiation cameras or camera modules for generating image signals from infrared radiation H04N23/20; circuitry of SSIS for transforming infrared radiation into image signals H04N25/20

Abstract

A display array is disclosed. The multifunctional pixel may include a plurality of multifunctional pixels. Each multifunctional pixel can include a red display area, a green display area, and a blue display area, as well as at least one sensor selected from the following sensor types: an ultrasonic sensor, an infrared sensor, a photoelectric sensor, and a capacitive sensor. The blue display area can be smaller than the red display area, or smaller than the green display area, in each of the plurality of multifunctional pixels.

Claims

1. A display array comprising:

a plurality of multifunctional pixels, each multifunctional pixel including;

a plurality of red sub-pixels, a plurality of green sub-pixels, and a plurality of blue sub-pixels;

a receiver bias electrode; and

at least one sensor selected from the following sensor types;

an ultrasonic sensor, an infrared sensor, a photoelectric sensor, and a capacitive sensor;

wherein

the at least one sensor includes a piezoelectric layer;

the receiver bias electrode controls a bias level of the piezoelectric layer; and

a blue display area allocated to the plurality of blue sub-pixels is smaller than one or both of a red display area allocated to the plurality of red sub-pixels and a green display area allocated to the plurality of green sub-pixels.

2. The display array of claim 1, wherein in at least some of the plurality of multifunctional pixels, at least one sensor replaces at least one of the blue sub-pixels.

3. The display array of claim 2, wherein there are more of the red sub-pixels or more of green sub-pixels than the blue sub-pixels.

4. The display array of claim 2, wherein each of the red sub-pixels and each of the green sub-pixels have approximately equal surface areas.

5. The display array of claim 2, wherein each of the blue sub-pixels is smaller than each of the red sub-pixels or each of the green sub-pixels.

6. The display array of claim 2, wherein each multifunctional pixel includes at least one row or column having a red sub-pixel, a green sub-pixel, and a blue sub-pixel arranged adjacent one another in a sequence.

7. The display array of claim 6, wherein each multifunctional pixel includes at least one second row or second column having a red sub-pixel, a green sub-pixel, and a sensor type of the at least one sensor arranged in a repeating pattern.

8. The display array of claim 1, wherein the at least one sensor includes a plurality of different sensor types selected from the following:

an ultrasonic sensor, an infrared sensor, a photoelectric sensor, and a capacitive sensor.

9. The display array of claim 1, wherein the at least one sensor includes a piezoelectric layer wherein the receiver bias electrode comprises a transparent conductive film.

10. The display array of claim 2, wherein there are more of the red sub-pixels or more of the green sub-pixels than the at least one sensor in each of multifunctional pixel.

11. The display array of claim 1, wherein the at least one sensor includes at least one ultrasonic sensor and at least one infrared sensor.

12. The display array of claim 11, wherein each multifunctional pixel includes more of the at least one ultrasonic sensor than the at least one infrared sensor.

13. The display array of claim 1, wherein the red display area, the green display area, the blue display area, and the at least one sensor are spaced in a repeating sequence along a row of the display array.

14. The display array of claim 1, wherein the red display area, the green display area, the blue display area, and the at least one sensor are spaced in a repeating sequence.

15. The display array of claim 1, wherein the red display area, the green display area, the blue display area, and the at least one sensor are arranged in a same position in each of the plurality of multifunctional pixels.

16. The display array of claim 1, wherein the red display area, the green display area, the blue display area, and the at least one sensor are arranged on a common substrate.

17. The display array of claim 1, wherein the least one sensor has an adjustable resolution.

18. The display array of claim 1, wherein the red display area, the green display area, and the blue display area have an adjustable resolution.

19. The multifunctional pixel of claim 1, wherein the least one sensor has a different frame rate than the red display area, the green display area, and the blue display.

20. The multifunctional pixel of claim 1, wherein the least one sensor includes an infrared sensor configured to detect heat from an object.