Blue light adjustment method, apparatus, and terminal

• US 10,332,484 B2
• Filed: 09/09/2014
• Issued: 06/25/2019
• Est. Priority Date: 09/09/2014
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Chen, Ming-Yu, Zheng, Tao, Le, Guo
• Primary Examiner(s): Caschera, Antonio A
• Application Number:
  US15/509,763
• Publication Number:
  US 20170294175A1
• Time in Patent Office: 1,750 Days
• CPC Class Codes: G06F 3/14 Digital output to display device ; Cooperation and interconnection of the display device with other functional units
• CPC Class Codes: G09G 2320/0261 in the context of movement of objects on the screen or movement of the observer relative to the screen
• CPC Class Codes: G09G 2320/029 by monitoring one or more pixels in the display panel, e.g. by monitoring a fixed reference pixel
• CPC Class Codes: G09G 2320/06 Adjustment of display parameters
• CPC Class Codes: G09G 2320/0666 for control of colour parameters, e.g. colour temperature
• CPC Class Codes: G09G 2320/08 Arrangements within a display terminal for setting, manually or automatically, display parameters of the display terminal
• CPC Class Codes: G09G 2340/14 Solving problems related to the presentation of information to be displayed
• CPC Class Codes: G09G 2354/00 Aspects of interface with display user
• CPC Class Codes: G09G 2360/144 the light being ambient light
• CPC Class Codes: G09G 5/006 Details of the interface to the display terminal specific for a display terminal using a CRT G09G1/167; using a flat panel G09G3/2096; circuits for interfacing with colour displays G09G5/04
• 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 terminal provided in the present disclosure, acquires values of one or more monitoring parameters. The terminal sets, according to the monitoring parameter, a blue light output value of a to-be-adjusted pixel displayed on a screen of the terminal when a value of at least one of the monitoring parameters meets a preset rule corresponding to the monitoring parameter, where the blue light output value is less than an original blue light output value of the to-be-adjusted pixel. The screen of the terminal displays the to-be-adjusted pixel according to the blue light output value such that the terminal can set, according to the monitoring parameter, the blue light output value of the to-be-adjusted pixel displayed on the screen of the terminal, and therefore the blue light can be adjusted intelligently, and an objective of vision protection without affecting user experience is achieved.

Claims

1. A blue light adjustment method, comprising:

acquiring, by a terminal, values of monitoring parameters, the monitoring parameters comprising duration and system time, and the duration indicating a time length of a continuous awake state of a screen of the terminal;

setting, by the terminal according to the monitoring parameters, a blue light output value of a to-be-adjusted pixel displayed on the screen of the terminal when a value of at least one of the monitoring parameters meets a preset rule corresponding to the monitoring parameter, the blue light output value being less than an original blue light output value of the to-be-adjusted pixel, a preset rule corresponding to the duration comprising that a value of the duration is greater than a preset duration threshold, and a preset rule corresponding to the system time comprising that the system time is within a preset time period;

displaying, by the screen of the terminal, the to-be-adjusted pixel according to the blue light output value; and

comparing, by the terminal, the monitoring parameters one-by-one according to a preset priority order, the terminal continuing the comparison when one of the monitoring parameters does not meet a preset rule, and the terminal stopping the comparison when the one of the monitoring parameters meets the preset rule.

2. The blue light adjustment method of claim 1, further comprising:

monitoring an application program currently running on a foreground of the terminal; and

setting the blue light output value to the original blue light output value of the to-be-adjusted pixel when the application program is in a preset application program list.

3. The blue light adjustment method of claim 1, wherein setting the blue light output value of the to-be-adjusted pixel displayed on the screen of the terminal comprises:

determining, by the terminal, a first adjustment parameter according to the monitoring parameter; and

setting, by the terminal, the blue light output value of the to-be-adjusted pixel according to the first adjustment parameter such that the blue light output value is less than the original blue light output value of the to-be-adjusted pixel.

4. The blue light adjustment method of claim 3, wherein setting the blue light output value of the to pixel according to the first adjustment parameter comprises setting, by the terminal, the blue light output value of the to-be-adjusted pixel according to Pout(x)=A*Pin(x), A indicating the first adjustment parameter, Pin(x) indicating the original blue light output value of the to-be-adjusted pixel, Pout(x) indicating the blue light output value of the to-be-adjusted pixel, and 0<

A<

1.

5. The blue light adjustment method of claim 3, wherein after determining the first adjustment parameter, the blue, light adjustment method further comprises determining, by the terminal, a second adjustment parameter according to the first adjustment parameter, and setting the blue light output value of the to-be-adjusted pixel according to the first adjustment parameter comprises setting, by the terminal, the blue light output value of the to-be-adjusted pixel according to the first adjustment parameter and the second adjustment parameter such that the blue light output value of the to-be-adjusted pixel is closer to the original blue light output value of the to-be-adjusted pixel when the original blue light output value of the to-be-adjusted pixel is smaller.

6. The blue light adjustment method of claim 5, wherein setting the blue light output value of the to-be-adjusted pixel according to the first adjustment parameter and the second adjustment parameter comprises setting, by the terminal, the blue light output value of the to-be-adjusted pixel according to Pout(x)=A*Pin(x)+A*Pin(x)*(1−

Pin(x)), A indicating the first adjustment parameter, G indicating the second adjustment parameter, Pin(x) indicating the original blue light output value of the to-be-adjusted pixel, Pout(x) indicating the blue light output value of the to-be-adjusted pixel, 0<

A<

1, and 1<

G<

10.

7. The blue light adjustment method of claim 1, wherein the blue light output value of the to-be-adjusted pixel displayed on the screen of the terminal comprises setting, by the terminal, the blue light output value of the to-be-adjusted pixel according to a preset third adjustment parameter such that the blue light output value is less than the original blue light output value of the to-be-adjusted pixel.

8. The blue light adjustment method of claim 1, wherein the to-be-adjusted pixel displayed on the screen of the terminal comprises all pixels displayed on the screen of the terminal.

9. The blue light adjustment method of claim 1, wherein the monitoring parameters further comprise:

ambient light luminance of the terminal;

a distance between an eye of a user and the screen of the terminal;

system time of the terminal;

a quantity of times the eye of the user closes per unit time;

a motion status of the terminal; and

the original blue light output value of the to-be-adjusted pixel.

10. The blue light adjustment method of claim 1, wherein the monitoring parameters further comprise an ambient light luminance, and a preset rule corresponding to the ambient light luminance comprises that a value of the ambient light luminance is less than a preset ambient light threshold.

11. The blue light adjustment method of claim 1, wherein the monitoring parameters further comprise a distance between the eye of the user and the screen of the terminal, and a preset rule corresponding to the distance between the eye of the user and the screen of the terminal comprises that a value of the distance between the eye of the user and the screen of the terminal is less than a preset distance threshold.

12. The blue light adjustment method of claim 1, wherein the preset time period comprises a sunset time period acquired by the terminal from a network.

13. The blue light adjustment method of claim 1, wherein the monitoring parameters further comprise a quantity of times the eye of the user closes per unit time, and a preset rule corresponding to the quantity of times the eye of the user closes per unit time comprises that a value of the quantity of times the eye of the user closes per unit time is greater than a preset threshold of eye closing times.

14. The blue light adjustment method of claim 1, wherein the monitoring parameters further comprise a motion status of the terminal, and a preset rule corresponding to the motion status of the terminal comprises that the motion status of the terminal is a moving state.

15. The blue light adjustment method of claim 1, further comprising:

monitoring an application program currently running on a foreground of the terminal; and

setting the blue light output value to the original blue light output value of the to-be-adjusted pixel when none of the values of the one or more monitoring parameters meets the preset rule corresponding to the monitoring parameter.

16. The blue light adjustment method of claim 1, wherein the to-be-adjusted pixel displayed on the screen of the terminal comprises some pixels displayed on the screen of the terminal.

17. The blue light adjustment method of claim 1, wherein the preset time period comprises a time period preset by the user.

18. A blue light adjustment terminal, comprising:

a receiver configured to acquire values of monitoring parameters, the monitoring parameters comprising duration and system time, and the duration indicating a time length of a continuous awake state of a screen of the terminal;

a processor coupled to the receiver and configured to;

set, when a value, of at least one of the monitoring parameters, acquired by the receiver meets a preset rule corresponding to the monitoring parameter, a blue light output value of a to-be-adjusted pixel according to the monitoring parameter, the blue light output value being less than an original blue light output value of the to-be-adjusted pixel, a preset rule corresponding to the duration comprising that a value of the duration is greater than a preset duration threshold, and a preset rule corresponding to the system time comprising that the system time is within a preset time period; and

compare the monitoring parameters one-by-one according to a preset priority order, the processor continuing the comparison when one of the monitoring parameters does not meet a preset rule, and the processor stopping the comparison when the one of the monitoring parameters meets the preset rule;

a display apparatus coupled to the processor and configured to display the to-be-adjusted pixel according to the blue light output value; and

a memory coupled to the processor and configured to store the preset rules corresponding to the monitoring parameters.

19. A blue light adjustment method, comprising:

acquiring, by a terminal, values of monitoring parameters, the monitoring parameters comprising duration and system time, and the duration indicating a time length of a continuous awake state of a screen of the terminal;

setting, by the terminal according to the monitoring parameters, a blue light output value of a to-be-adjusted pixel displayed on the screen of the terminal when a value of at least one of the monitoring parameters meets a preset rule corresponding to the monitoring parameter, the blue light output value being less than an original blue light output value of the to-be-adjusted pixel, a preset rule corresponding to the duration comprising that a value of the duration is greater than a preset duration threshold, a preset rule corresponding to the system time comprising that the system time is within a preset time period, and the preset time period comprising a sunset time period acquired by the terminal from a network; and

displaying, by the screen of the terminal, the to-be-adjusted pixel according to the blue light output value.