Method and system for adjusting display unit

• US 9,779,689 B2
• Filed: 03/31/2014
• Issued: 10/03/2017
• Est. Priority Date: 07/24/2013
• Status: Active Grant

• Current Assignee: Lenovo Company Limited (Lenovo Group Ltd.)
• Original Assignee: Lenovo Company Limited (Lenovo Group Ltd.)
• Inventors: He, Zhiqiang, Zhang, Zhenhua, Shang, Ke
• Primary Examiner(s): Thompson, James A
• Application Number:
  US14/230,935
• Publication Number:
  US 20150029209A1
• Time in Patent Office: 1,282 Days
• CPC Class Codes: G06F 1/3206 Monitoring of events, devices or parameters that trigger a change in power modality
• CPC Class Codes: G06F 1/325 Power saving in peripheral device
• CPC Class Codes: G06F 3/0346 with detection of the device orientation or free movement in a 3D space, e.g. 3D mice, 6-DOF [six degrees of freedom] pointers using gyroscopes, accelerometers or tilt-sensors
• CPC Class Codes: G09G 2356/00 Detection of the display position w.r.t. other display screens
• CPC Class Codes: G09G 2360/144 the light being ambient light
• CPC Class Codes: G09G 2380/14 Electronic books and readers
• CPC Class Codes: G09G 5/02 characterised by the way in which colour is displayed details of colour display specific for CRTs G09G1/28; specific for flat matrix panels other than liquid crystal displays G09G3/2003; specific for liquid crystal displays G09G3/3607
• CPC Class Codes: G09G 5/10 Intensity circuits

Abstract

A method and system for adjusting a display unit are disclosed. The method includes: acquiring first status information of the display unit; determining whether the first status information of the display unit is changed and obtaining a first determining result; switching on the ambient light information acquisition unit in a case that the first determining result indicates that the first status information of the display unit is changed; and adjusting a display parameter of the display unit according to ambient light information acquired by the ambient light information acquisition unit. According to the disclosed method and system, the power consumption of ambient light acquisition unit is reduced, and then the power consumption of the electronic device adopting Paper-looking technology is reduced.

Claims

1. A method for adjusting a display unit provided in an electronic device when the electronic device is in an operating state, wherein the display unit comprises an ambient light information acquisition unit, the method comprises:

acquiring first status information of the display unit;

determining whether the first status information of the display unit is changed and obtaining a first determining result;

switching on the ambient light information acquisition unit in a case that the first determining result indicates that the first status information of the display unit is changed;

adjusting a display parameter of the display unit according to ambient light information acquired by the ambient light information acquisition unit,

detecting an off-status duration of the ambient light information acquisition unit since the ambient light information acquisition unit is switched off; and

switching on the ambient light information acquisition unit in a case that the off-status duration is greater than or equal to a second threshold;

wherein, the process of acquiring first status information of the display unit further comprises;

acquiring a first speed information of a display unit at a first time; and

acquiring a second speed information of the display unit at a second time later than the first time;

wherein, the process of determining whether the first status information of the display unit is changed and obtaining a first determining result comprises;

determining whether a speed of the display unit is changed and then obtaining a first determining result according to the first and the second speed information.

2. The method for adjusting a display unit according to claim 1, wherein the process of determining whether the first status information of the display unit is changed comprises:

determining whether the display unit is changed from a static status to a moving status.

3. The method for adjusting a display unit according to claim 1, wherein the process of adjusting the display parameter of the display unit comprises:

acquiring chromaticity information of ambient light; and

adjusting chromaticity information of an image displayed on the display unit according to the chromaticity information of ambient light.

4. The method for adjusting a display unit according to claim 1, wherein the method further comprises:

detecting an on-status duration of the ambient light information acquisition unit since the ambient light information acquisition unit is switched on; and

switching off the ambient light information acquisition unit in a case that the on-status duration is greater than or equal to a first threshold.

5. A system for adjusting a display unit provided in an electronic device when the electronic device is in an operating state, wherein the display unit comprises an ambient light information acquisition unit, the system comprises:

a first status information acquisition unit, adapted to acquire first status information of the display unit; and

a processor adapted to;

determine whether the first status information of the display unit is changed and to obtain a first determining result;

switch on the ambient light information acquisition unit in a case that the first determining result indicates that the first status information of the display unit is changed;

adjust a display parameter of the display unit according to ambient light information acquired by the ambient light information acquisition unit;

detect an off-status duration of the ambient light information acquisition unit since the ambient light information acquisition unit is switched off; and

switch on the ambient light information acquisition unit in a case that the off-status duration is greater than or equal to a second threshold;

wherein, the first status information acquisition unit is further configured to;

acquire a first speed information of a display unit at a first time; and

acquire a second speed information of the display unit at a second time later than the first time;

wherein, the processor is further configured to;

determine whether a speed of the display unit is changed and then obtaining a first determining result according to the first and the second speed information.

6. The system for adjusting a display unit according to claim 5, wherein the processor is further adapted to determine whether the display unit is changed from a static status to a moving status.

7. The system for adjusting a display unit according to claim 5, wherein the processor is further adapted to:

acquire chromaticity information of ambient light; and

adjust chromaticity information of an image displayed on the display unit according to the chromaticity information of ambient light.

8. The system for adjusting a display unit according to claim 5, wherein the processor is further adapted to:

detect an on-status duration of the ambient light information acquisition unit since the ambient light information acquisition unit is switched on; and

switch off the ambient light information acquisition unit in a case that the on-status duration is greater than or equal to a first threshold.