CN110689852B - Display device and screen brightness control method thereof - Google Patents
Display device and screen brightness control method thereof Download PDFInfo
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- CN110689852B CN110689852B CN201810734152.2A CN201810734152A CN110689852B CN 110689852 B CN110689852 B CN 110689852B CN 201810734152 A CN201810734152 A CN 201810734152A CN 110689852 B CN110689852 B CN 110689852B
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- display panel
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3433—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices
- G09G3/344—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices based on particles moving in a fluid or in a gas, e.g. electrophoretic devices
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Controls And Circuits For Display Device (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Abstract
The invention discloses a display device and a screen brightness control method thereof. The motion sensor is used for sensing the vector change of the electrophoretic display panel and the vector vertical to the electrophoretic display panel. The usage sensing module is used for sensing a usage signal of the electrophoretic display panel. The ambient light sensor is adjacent to the electrophoretic display panel and is used for sensing ambient light illumination. The processor is used for increasing the brightness of the electrophoretic display panel when the vector change or the use signal is sensed, the vector is greater than or equal to 0, and the ambient light illumination is less than or equal to a set value. In addition, a screen brightness control method of the display device is provided. Therefore, whether the brightness of the electrophoretic display panel is improved or not can be determined according to the detection results of the motion sensor, the use sensing module and the ambient light sensor, so that the screen brightness is prevented from being automatically adjusted when not necessary, and poor use feeling is provided.
Description
Technical Field
The invention relates to a display device and a screen brightness control method thereof.
Background
Ambient light sensors have been widely used in display devices to adjust the brightness of the screen of the display device. However, in practical applications, if the screen brightness of the display device is adjusted by only the ambient light sensor, the screen brightness may be automatically adjusted when unnecessary, which may give a poor user experience.
Disclosure of Invention
The invention provides a display device, which comprises an electrophoretic display panel, a motion sensor, a usage sensing module, an ambient light sensor and a processor. According to the detection results of the motion sensor, the usage sensing module and the ambient light sensor, whether the brightness of the electrophoretic display panel is improved or not is determined, so that the screen brightness is prevented from being automatically adjusted when not necessary, and poor use feeling is given.
The invention provides a display device, comprising an electrophoretic display panel; the motion sensor is used for sensing the vector change of the electrophoretic display panel and the vector vertical to the electrophoretic display panel; the usage sensing module is used for sensing a usage signal of the electrophoretic display panel; an ambient light sensor adjacent to the electrophoretic display panel for sensing ambient light illumination; and the processor is used for increasing the brightness of the electrophoretic display panel when the vector change or the use signal is sensed, the vector is greater than or equal to 0, and the ambient light illumination is less than or equal to a set value.
According to various embodiments of the present invention, the usage sensing module includes a touch sensing unit, an operation sensing unit, or a combination thereof.
According to various embodiments of the present invention, the operation sensing unit includes a keyboard, a mouse, an operation key, or a combination thereof.
According to various embodiments of the present invention, the display device further includes: and the display panel is positioned below the electrophoretic display panel or is laterally adjacent to the electrophoretic display panel, and the display panel is another electrophoretic display panel or a liquid crystal display panel.
According to various embodiments of the present invention, the display device further includes: and the front light module is arranged above the electrophoretic display panel, and the processor promotes the brightness of the electrophoretic display panel through the front light module.
According to various embodiments of the present invention, the electrophoretic display panel, the motion sensor, the usage sensing module and the ambient light sensor are electrically connected to the processor.
The present invention further provides a method for controlling screen brightness of a display device, comprising: sensing a vector change of the electrophoretic display panel by a motion sensor; sensing a use signal of the electrophoretic display panel by using a sensing module; sensing a vector perpendicular to the electrophoretic display panel by a motion sensor when the vector change or the usage signal is sensed; when a vector perpendicular to the electrophoretic display panel is greater than or equal to 0, sensing ambient light illumination through an ambient light sensor; and when the ambient light illumination is less than or equal to the set value, the brightness of the electrophoretic display panel is improved.
According to various embodiments of the present invention, the screen brightness control method further includes: when the vector vertical to the electrophoretic display panel is less than 0, the vector change and the use signal are continuously sensed.
According to various embodiments of the present invention, the screen brightness control method further includes: when the ambient light illumination is larger than the set value, the vector change and the use signal are continuously sensed.
According to embodiments of the present invention, the brightness of the electrophoretic display panel is improved by the front light module.
Compared with the prior art, the display device and the screen brightness control method thereof can determine whether to improve the brightness of the electrophoretic display panel according to the detection results of the motion sensor, the use sensing module and the ambient light sensor, so as to avoid the problem that the screen brightness is automatically adjusted when not necessary and give bad use feeling.
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In order to make the aforementioned and other objects, features, advantages and embodiments of the invention more comprehensible, the following description is given:
FIG. 1 is a system block diagram of a display device according to various embodiments of the invention.
FIG. 2 is a schematic diagram of a display device according to various embodiments of the invention.
Fig. 3 is a schematic cross-sectional view illustrating an electrophoretic display panel and a front light module according to various embodiments of the invention.
FIG. 4 is a schematic diagram of a display device according to various embodiments of the invention.
FIG. 5 is a schematic diagram of a display device according to various embodiments of the invention.
Fig. 6 is a flowchart illustrating a method for controlling screen brightness of a display device according to various embodiments of the present disclosure.
Fig. 7 and 8 are schematic views illustrating display devices according to various embodiments of the invention.
Fig. 9 and 10 are schematic views illustrating display devices according to various embodiments of the invention.
Detailed Description
The following provides many different embodiments or examples of the invention to achieve different technical features of the provided subject matter. The elements and design of the following specific examples serve to simplify the present invention. These are, of course, merely examples and are not intended to be limiting. For example, the description discloses forming a first feature over a second feature, including embodiments in which the first feature and the second feature are formed in direct contact, and also including embodiments in which additional features are formed between the first feature and the second feature, i.e., the first feature and the second feature are not in direct contact. Moreover, repeated reference symbols and/or verbs may be used in various examples. These repeated symbols or words are provided for simplicity and clarity and are not intended to limit the relationship between the various embodiments and/or the described structures.
In addition, spatially relative terms, such as "lower," "upper," and the like, are used for convenience in describing the relative relationship of one element or feature to another element or feature in the figures. These spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The invention provides a display device, which comprises an electrophoretic display panel, a motion sensor, a usage sensing module, an ambient light sensor and a processor. According to the detection results of the motion sensor, the usage sensing module and the ambient light sensor, whether the brightness of the electrophoretic display panel is improved or not is determined, so that the screen brightness is prevented from being automatically adjusted when not necessary, and poor use feeling is given.
FIG. 1 is a system block diagram of a display device 10 according to various embodiments of the invention. The display device 10 may be a portable electronic device, such as a mobile phone, a tablet, a notebook computer or other mobile devices supporting touch operation. As shown in fig. 1, the display device 10 includes an electrophoretic display panel 101, a motion sensor 102, a usage sensing module 103, an ambient light sensor 104, and a processor 105.
The motion sensor 102 is used for sensing a vector change of the electrophoretic display panel 101. In detail, the motion sensor 102 may detect a three-axis vector of the electrophoretic display panel 101 and a change thereof, and may also detect an acceleration and a momentum change of the electrophoretic display panel 101 to preliminarily determine whether the user is using the display device 10. In addition, the motion sensor 102 can also be used to sense a vector perpendicular to the electrophoretic display panel 101 to obtain a normal direction of the display surface of the electrophoretic display panel 101.
The usage sensing module 103 is used for sensing a usage signal of the electrophoretic display panel 101. In some embodiments, the usage sensing module 103 includes a touch sensing unit 1032, an operation sensing unit 1034, or a combination thereof. In some embodiments, the operation sensing unit 1034 includes a keyboard, a mouse, an operation key (e.g., a power key or a home key), or a combination thereof. By using the sensing module 103, it can be known whether the user is using the display device 10.
The ambient light sensor 104 is used for sensing the ambient light illumination (i.e. the illumination value of the surrounding environment). FIG. 2 is a schematic diagram of a display device 10A according to various embodiments of the invention. As shown in fig. 2, the ambient light sensor 104 is adjacent to the electrophoretic display panel 101. In some embodiments, the motion sensor 102, the usage sensing module 103, and the processor 105 shown in fig. 1 may be disposed inside the display device 10A.
Referring to fig. 1, the processor 105 is electrically connected to the electrophoretic display panel 101, the motion sensor 102, the usage sensing module 103, and the ambient light sensor 104. The processor 105 receives signals from the motion sensor 102, the usage sensing module 103 and the ambient light sensor 104, and determines whether to increase the brightness of the electrophoretic display panel 101 according to the signals.
In detail, the processor 105 can determine whether the user is using the display device according to the vector variation or the usage signal, and determine whether to increase the brightness of the electrophoretic display panel 101 according to the normal direction of the display surface of the electrophoretic display panel 101 according to the vector perpendicular to the electrophoretic display panel 101 and according to the ambient light illuminance obtained by the ambient light sensor 104. When the processor 105 senses the vector change or the use signal, and the vector perpendicular to the electrophoretic display panel 101 is greater than or equal to 0, and the ambient light illumination is less than or equal to a set value, the brightness of the electrophoretic display panel 101 is increased.
Fig. 3 is a schematic cross-sectional view illustrating the electrophoretic display panel 101 and the front light module 107 according to various embodiments of the invention. As shown in fig. 3, the display device further includes a front light module 107 disposed above the electrophoretic display panel 101, and the processor 105 of fig. 1 can increase the brightness of the electrophoretic display panel 101 through the front light module 107.
FIG. 4 is a schematic diagram of a display device 10B according to various embodiments of the invention. FIG. 5 is a schematic diagram of a display device 10C according to various embodiments of the invention. As shown in fig. 4 and 5, the display devices 10B and 10C further include another display panel 106. As shown in fig. 4, the display panel 106 is positioned below the electrophoretic display panel 101. As shown in fig. 5, the display panel 106 laterally abuts the electrophoretic display panel 101. In some embodiments, the display panel 106 is another electrophoretic display panel or a liquid crystal display panel.
The invention also provides a screen brightness control method of the display device. Fig. 6 is a flowchart illustrating a method for controlling screen brightness of a display device according to various embodiments of the present disclosure. Referring to fig. 1 and fig. 6, first, a motion sensor 102 senses a vector change of the electrophoretic display panel 101, and a sensing module 103 senses a usage signal of the electrophoretic display panel 101.
When the vector change or the use signal is sensed (i.e., step S1), the vector perpendicular to the electrophoretic display panel 101 is sensed by the motion sensor 102 to know the normal direction of the display surface of the electrophoretic display panel 101.
A number of different states of the display device are listed below. Fig. 7 and 8 are schematic diagrams illustrating a display device 10B according to various embodiments of the invention. As shown in fig. 7, it can be sensed that a vector (i.e., vector z) perpendicular to the electrophoretic display panel 101 is greater than 0, i.e., a normal direction of the display surface of the electrophoretic display panel 101 is upward. As shown in fig. 8, it can be sensed that the vector z is smaller than 0, i.e., the normal direction of the display surface of the electrophoretic display panel 101 is downward.
Fig. 9 and 10 are schematic diagrams illustrating a display device 10C according to various embodiments of the invention. As shown in fig. 9, vector z can be sensed to be greater than 0. As shown in fig. 10, when the included angle θ between the electrophoretic display panel 101 and the display panel 106 is greater than 90 degrees, it can also be sensed that the vector z is greater than 0. In other embodiments, when the angle θ between the electrophoretic display panel 101 and the display panel 106 is equal to 90 degrees, the vector z may be sensed to be equal to 0.
Referring to fig. 1 and fig. 6, when the vector perpendicular to the electrophoretic display panel 101 is greater than or equal to 0 (i.e., step S2), the ambient light is sensed by the ambient light sensor 104 (i.e., step S3). When the ambient light illuminance is less than or equal to the set value (i.e., step S4), the brightness of the electrophoretic display panel 101 is increased (i.e., step S5). In some embodiments, boosting the brightness of the electrophoretic display panel 101 is achieved by a front light module.
In some embodiments, as shown in fig. 6, when the vector perpendicular to the electrophoretic display panel is less than 0, the vector change and the use signal continue to be sensed. In some embodiments, as shown in fig. 6, when the ambient light illuminance is greater than the set value, the vector change and the usage signal are continuously sensed.
Since the method for controlling the screen brightness determines whether to raise the brightness of the electrophoretic display panel (i.e., step S5) according to a series of steps (i.e., steps S1 to S4), rather than only depending on the detection result of the ambient light sensor, it is able to avoid automatically adjusting the screen brightness when it is not necessary, and thus, it is not good to use the screen.
The foregoing briefly addresses the features of the various embodiments so that those skilled in the art may better understand the aspects of the present invention. Those skilled in the art should appreciate that they may readily use the present invention as a basis for designing or modifying other processes and structures for carrying out the same purposes and/or achieving the same advantages of the embodiments introduced herein. Those skilled in the art should also realize that such equivalent constructions do not depart from the spirit and scope of the present disclosure, and that they may make various changes, substitutions, and alterations herein without departing from the spirit and scope of the present disclosure.
Claims (10)
1. A display device, comprising:
an electrophoretic display panel;
a motion sensor for sensing a vector change of the electrophoretic display panel and a vector perpendicular to the electrophoretic display panel;
a use sensing module for sensing a use signal of the electrophoretic display panel;
an ambient light sensor adjacent to the electrophoretic display panel and sensing ambient light illumination; and
and the processor is used for increasing the brightness of the electrophoretic display panel when the vector change or the use signal is sensed, the vector vertical to the electrophoretic display panel is greater than or equal to 0, and the ambient light illumination is less than or equal to a set value.
2. The display device of claim 1, wherein the usage sensing module comprises a touch sensing unit, an operation sensing unit, or a combination thereof.
3. The display device according to claim 2, wherein the operation sensing unit includes a keyboard, a mouse, an operation key, or a combination thereof.
4. The display device of claim 1, further comprising:
and the display panel is positioned below the electrophoresis display panel or is adjacent to the electrophoresis display panel in the lateral direction, and the display panel is another electrophoresis display panel or a liquid crystal display panel.
5. The display device of claim 1, further comprising:
the processor promotes the brightness of the electrophoretic display panel through the front optical module.
6. The display device of claim 1, wherein the electrophoretic display panel, the motion sensor, the usage sensing module, and the ambient light sensor are electrically connected to the processor.
7. A method for controlling screen brightness of a display device, comprising:
sensing a vector change of the electrophoretic display panel by a motion sensor;
sensing a use signal of the electrophoretic display panel by using a sensing module;
sensing, by the motion sensor, a vector perpendicular to the electrophoretic display panel when the vector change or the use signal is sensed;
sensing ambient light illumination by an ambient light sensor when the vector perpendicular to the electrophoretic display panel is greater than or equal to 0; and
and when the ambient light illumination is less than or equal to a set value, the brightness of the electrophoretic display panel is improved.
8. The screen brightness control method of claim 7, further comprising:
when the vector perpendicular to the electrophoretic display panel is less than 0, the vector change and the use signal continue to be sensed.
9. The screen brightness control method of claim 7, further comprising:
when the ambient light illumination is larger than the set value, the vector change and the use signal are continuously sensed.
10. The screen brightness control method of claim 7, wherein boosting the brightness of the electrophoretic display panel is achieved by a front light module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810734152.2A CN110689852B (en) | 2018-07-06 | 2018-07-06 | Display device and screen brightness control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810734152.2A CN110689852B (en) | 2018-07-06 | 2018-07-06 | Display device and screen brightness control method thereof |
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| CN110689852A CN110689852A (en) | 2020-01-14 |
| CN110689852B true CN110689852B (en) | 2021-03-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5292861B2 (en) * | 2007-06-22 | 2013-09-18 | セイコーエプソン株式会社 | Electrophoretic display device driving method and electrophoretic display device |
| JP2012203192A (en) * | 2011-03-25 | 2012-10-22 | Japan Display West Co Ltd | Display apparatus and illuminating device |
| TWI456564B (en) * | 2011-09-29 | 2014-10-11 | Acer Inc | Electronic apparatus, luminance adjustment system and luminance adjustment method |
| TW201606489A (en) * | 2014-08-08 | 2016-02-16 | 宏碁股份有限公司 | Electronic apparatus and wake-up method thereof |
| TWI522900B (en) * | 2014-09-05 | 2016-02-21 | 浩鑫股份有限公司 | Method for controlling screen of electronic device and application program for using the same |
| US10217439B2 (en) * | 2016-02-04 | 2019-02-26 | Apple Inc. | Electronic device with ambient light sensor system |
| CN107767839B (en) * | 2017-10-20 | 2020-01-31 | Oppo广东移动通信有限公司 | Brightness adjusting method and related product |
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