Electronic device and method for preventing damage of display

Patent metadata

Field	Value
Publication number	US-11073866-B2
Application number	US-202016747674-A
Country	US
Kind code	B2
Filing date	Jan 21, 2020
Priority date	Jan 21, 2019
Publication date	Jul 27, 2021
Grant date	Jul 27, 2021

Abstract

An foldable electronic device and method are disclosed. The device includes: a foldable housing rotatable about a hinge, enabling folding of a flexible display. The device further includes a touch sensor, a first processor and a second processor. The processors implement the method, including: by the first processor, detecting an external object contacting the flexible display and requesting activation of the second processor based on the detection; and by the second processor: activating and outputting a notification warning of potential damage to the flexible display if the device is folded closed with the external object present on the flexible display.

First claim

What is claimed is:

1. An electronic device, comprising:
a first housing including a first surface and a second surface facing away from the first surface;
a second housing including a third surface and a fourth surface facing away from the third surface;
a folding part configured to pivotably couple a side surface of the first housing and a side surface of the second housing;
a flexible display disposed on the first surface and the third surface, the flexible display covering the folding part, and including a first area corresponding to the first surface and a second area corresponding to the third surface;
a touch sensor configured to detect a touch input on the first area and the second area;
at least one processor operatively coupled with the touch sensor; and/or
the flexible display, and
wherein the at least one processor is configured to:
in response to detecting closure of the first housing onto the second housing, detect whether an external object is on the first area or the second area to prevent damage to the flexible display, and
in response to detecting the external object is on the first area or the second area, output a notification related to the external object upon activation to prevent damage to the flexible display.

2. The electronic device of claim 1 , further comprising:
a second processor in addition to the at least one processor; and
a force touch sensor operatively coupled with the first at least one processor, the force touch sensor configured to detect a pressure intensity of touch inputs,
wherein the external object is detected contacting the first area or the second area when the second processor is in a sleep state, and
wherein the at least one processor is configured to:
detect a pressure intensity of the external object contacting the first area or the second area through the force touch sensor while the second processor is in the sleep state; and
wherein requesting activation of the second processor is further based on the detected pressure intensity.

3. The electronic device of claim 2 , wherein the at least one processor is configured to:
while the contact of the external object is maintained, detect whether the pressure intensity of the external object is greater than a threshold pressure intensity,
wherein activation of the second processor is requested when the pressure intensity of the external object is greater than the threshold pressure intensity.

4. The electronic device of claim 2 , further comprising a configuration detection sensor configured to detect a distance between the first area and the second area of the flexible display,
wherein detecting whether the external object is obstructing closure further includes detecting whether the distance between the first area and the second area of the flexible display is longer than a predetermined threshold distance while the second processor is in the sleep state, and
wherein detecting that distance between the first area and the second area is longer than the predetermined threshold distance indicates the external object is obstructing closure of the flexible display.

5. The electronic device of claim 4 , wherein the touch sensor is deactivated based on detecting that the distance between the first side and the second side is shorter than or equal to the predetermined threshold distance while the second processor is in the sleep state.

6. The electronic device of claim 2 , wherein an operating frequency of the touch sensor when the second processor is in the sleep state is shorter than an operating frequency of the touch sensor when the second processor is activated, and
wherein the flexible display is stowed between the first housing and the second housing when the electronic device is disposed in a closed configuration.

7. The electronic device of claim 2 , wherein the at least one processor is configured to:
detect whether the external object is distinct from a known input object, based on a distribution of data generated by contact of the external object on the flexible display,
wherein the request to activate the second processor is generated based on detecting that the external object is distinct from the known input object.

8. The electronic device of claim 2 , further comprising a haptic actuator operatively coupled with the second processor,
wherein the notification includes a vibration of a predesignated pattern generated by the haptic actuator.

9. The electronic device of claim 2 , further comprising a speaker operatively coupled with the second processor,
wherein the notification includes output of an audible warning by the speaker indicating potential damage to the flexible display by the external object.

10. The electronic device of claim 1 , wherein the flexible display comprises a polyimide (PI) window.

11. A method for operating in a foldable electronic device having a flexible display, comprising:
in response to detecting closure of a first housing onto a second housing, detecting, by at least one processor, whether an external object is on a first area of the flexible display or a second area of the flexible display to prevent damage to the flexible display; and
in response to detecting the external object is on the first area or the second area, outputting a notification related to the external object to prevent damage to the flexible display.

12. The method of claim 11 , wherein the foldable electronic device includes a second processor in addition to the at least one processor, and
wherein the external object is detected on the first area or the second area when the second processor is in a sleep state, the method further comprising:
detecting, by the at least one processor, a pressure intensity of the external object contacting the flexible display using a force touch sensor while the second processor is in the sleep state,
wherein activation of the second processor is requested based on the detected pressure intensity.

13. The method of claim 12 , further comprising:
while the contact of the external object is maintained, detecting whether the pressure intensity of the external object is greater than a threshold pressure intensity,
wherein activation of the second processor is requested when the pressure intensity of the external object is greater than the threshold pressure intensity.

14. The method of claim 12 , wherein detecting whether the external object is obstructing closure further includes detecting, by a configuration detection sensor, whether a distance between a first area of the flexible display corresponding to the first housing and a second area of the flexible display corresponding to the second housing is longer than a predetermined threshold distance while the second processor is in the sleep state, and
wherein detecting that distance between the first area and the second area is longer than the predetermined threshold distance indicates the external object is obstructing closure of the flexible display.

15. The method of claim 14 , wherein the electronic device includes a touch sensor, and
wherein the touch sensor is deactivated based on detecting that the distance between a first side of the first area and a second side of the second area is less than or equal to the predetermined threshold distance using the configuration detection sensor.

16. The method of claim 12 , wherein an operating frequency of the touch sensor when the second processor is in the sleep state is shorter than an operating frequency of the touch sensor when the second processor is activated, and
wherein the flexible display is stowed within

Assignees

• Samsung Electronics Co Ltd

Inventors

• Kim Minuk
• Kim Jiyong
• Park Jongdae
• Lee Keunsik
• Heo Hoondo
• Heo Changryong

Classifications

• H04M1/0268 Primary

  including a flexible display panel · CPC title

• G06F3/0346

  with detection of the device orientation or free movement in a three-dimensional [3D] space, e.g. 3D mice, 6-DOF [six degrees of freedom] pointers using gyroscopes, accelerometers or tilt-sensors · CPC title

• G06F3/016

  Input arrangements with force or tactile feedback as computer generated output to the user · CPC title

• G06F3/16

  Sound input; Sound output (speech processing G10L) · CPC title

• G06F3/044

  by capacitive means · CPC title