KR20130015780A - Brightness control method of display using image device and that method - Google Patents

Brightness control method of display using image device and that method Download PDF

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Publication number
KR20130015780A
KR20130015780A KR1020110078002A KR20110078002A KR20130015780A KR 20130015780 A KR20130015780 A KR 20130015780A KR 1020110078002 A KR1020110078002 A KR 1020110078002A KR 20110078002 A KR20110078002 A KR 20110078002A KR 20130015780 A KR20130015780 A KR 20130015780A
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KR
South Korea
Prior art keywords
brightness
display device
image
image data
range
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KR1020110078002A
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Korean (ko)
Inventor
노시청
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주식회사 필룩스
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Priority to KR1020110078002A priority Critical patent/KR20130015780A/en
Publication of KR20130015780A publication Critical patent/KR20130015780A/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/20—Analysis of motion
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/60—Analysis of geometric attributes
    • G06T7/62—Analysis of geometric attributes of area, perimeter, diameter or volume
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/57—Control of contrast or brightness

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Geometry (AREA)
  • Signal Processing (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

The present invention provides a method for scanning a user's eyelid area and recognizing it as image data using an imaging device capable of identifying a specific part of a user's body, transferring the image data to a controller, and transmitting the image data to a predetermined program. Comparing the data in the controller, transmitting the brightness control signal of the display device to the controller when the image data is included in the set program data range, and adjusting the brightness of the display device by the brightness control signal. It consists of a structure including.
As described above, the brightness adjusting device and the method of the display device using the image pickup apparatus according to the present invention changes the brightness of the display device as the image data input using the image pickup device changes the area of the user's eyelid through the program data of the control unit. As a result, the brightness of the display device is changed according to the user's state, and thus the brightness is adjusted downward at night or at bedtime to induce the user to sleep and reduce power consumption.

Description

Brightness control method of display device using imaging device and its method {Brightness control method of display using image device and that method}

The present invention relates to a brightness adjusting device and a method of the display device using the image pickup device, and more particularly, to a display device using the image pickup device that can adjust the brightness of the display device and the illumination device through the image data recognized as the image pickup device. It relates to a brightness control device and a method thereof.

In general, a display device that displays a constant screen on a liquid crystal, such as a television, a monitor, a mobile phone, or a video player, is fixed to the brightness set at the time of initial product shipment regardless of the surrounding environment where the screen brightness is changed. The fixed screen brightness provides a screen brightness that is inconsistent with the ambient illumination at night when the day and night changes, causing glare and inconvenience to the terminal user.

Korean Patent Laid-Open Publication No. 10-0011411 discloses a method for adjusting display items in an imaging apparatus and an imaging apparatus in the related art, as shown in FIG. 1, in the imaging apparatus, an optical sensor 1. Is provided separately to detect the external illuminance, and the illuminance value is converted into a digital value so that the display characteristic items are adjusted in the controller 3.

However, the conventional technology as described above is to adjust the OSD (On Screen Display) function that is adjusted so that the user can directly optimize the use of the monitor screen, when the user using a general display device is set to suit the first environment It is common to use it in a state, and there is a problem in that it is inconvenient for the user to watch the display device because the optical sensor reacts sensitively to the user's surrounding environment which changes frequently.

In addition, since the lighting device is mainly used indoors at night, the control through the illuminance value does not make much sense, and the display device which is always driven at the same brightness increases the fatigue of the user's eyes, There was a problem to watch.

In order to solve the above problems, it is an object of the present invention to provide a brightness adjusting device and a method of the display device using the image pickup device that the brightness of the display device is changed in accordance with the state of the user of the display device.

In addition, the brightness control device of the display device using the image pickup device that the brightness is adjusted according to a predetermined program data after analyzing the image data around the user's eye that the brightness control of the display device is recognized as the imaging device in the control unit and a method thereof There is another purpose.

The present invention is an image pickup device; A storage unit for storing program data compared with the image data recognized by the imaging device; A controller configured to generate a control signal for adjusting brightness by comparing the image data with program data; A display device electrically connected to the control unit and configured to adjust brightness by a control signal; And an illumination device electrically connected to the control unit and whose brightness is controlled by a control signal.

In addition, the display device and the lighting device may be individually or simultaneously adjusted in brightness according to user selection.

The program data is set to a first reference image having a wound area of the user's eyelid in a range of 60 to 100% and a second reference image having a wound area of the user's eyelid in a range of 1 to 59%.

The controller may adjust the brightness of the display device downward or upward when the image data is included in the program data range set as the first reference image or the second reference image.

The controller may adjust the brightness of the lighting device downward or upward when the image data is included in the program data range set as the first reference image or the second reference image.

In addition, the display device is lowered in brightness when the image data is included in the first reference image range.

In addition, the display device is upwardly adjusted when the image data is included in the second reference image range.

In addition, the illumination device is lowered in brightness when the image data is included in the first reference image range.

In addition, the illumination device is the brightness is adjusted upward when the image data is included in the second reference image range.

In addition, the imaging device is built in the display device or is selectively provided on one side of the display device.

The present invention comprises the steps of scanning the user's eyelid area to recognize the image data; Comparing the recognized image data with preset program data; Generating a brightness control signal when the recognized image data is included in the set program data range; And adjusting the brightness of the display device by the generated brightness control signal.

The method may further include adjusting brightness of an ambient lighting device in generating the brightness control signal.

In addition, the display device and the lighting device individually or simultaneously adjust the brightness according to the user's selection.

In addition, in the adjusting of the brightness of the display device, adjusting the brightness of the display device may include displaying the image data that persists within the program data range set as the first reference image or the second reference image through the recognized image data. Adjust the brightness of the device down or up.

In addition, when the brightness of the lighting device is adjusted in the adjusting of the brightness of the lighting device, when the image data persisted within the program data range set as the first reference image or the second reference image through the recognized image data, the illumination Adjust the brightness of the device down or up.

In addition, the first reference image has a wound area of the user eyelid 60 to 100% range, the second reference image is set to a range of 1 ~ 59% of the eyelid wound area.

In addition, when the image data is included in the first reference image range, the brightness of the display device or the lighting device is adjusted downward.

In addition, when the image data is included in the second reference image range, the brightness of the display device or the lighting device is adjusted upward.

As described above, the brightness adjusting device and the method of the display device using the imaging device according to the present invention is the brightness of the display device according to the change in the area of the user's eyelid through the program data of the control unit image data input using the imaging device By changing, the brightness of the display device is changed according to the user's state, and the brightness is adjusted downward at night or at bedtime to induce the user to sleep and reduce power consumption.

1 is a flow chart according to the prior art
2 is a block diagram of a display device using the image pickup device according to the present invention.
3 is an eye image reference diagram
4 is a diagram illustrating a display device using the image pickup device according to the present invention.
5 is a flowchart illustrating a method of adjusting brightness of a display device using an image pickup device according to the present invention.

Hereinafter, an embodiment of a display device and a method of adjusting brightness using an imaging device according to the present invention will be described with reference to the accompanying drawings. For convenience of explanation, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

2 is a configuration diagram of a display device using the image pickup device according to the present invention, FIG. 3 is a reference diagram of an eye image, FIG. 4 is a state diagram of a display device using the image pickup device according to the present invention, and FIG. A flowchart of a method of adjusting brightness of a display device using an imaging device.

As shown in FIGS. 2 to 4, an apparatus for adjusting brightness of a display apparatus using an imaging apparatus according to the present invention includes an imaging apparatus 10 capable of identifying and photographing a specific part of a body, and program data 21. The controller 30 controls the stored storage unit 20, the signal of the program data 21, and the display device 40 to be described later by the remote controller 31, and the brightness is controlled by the controller 30. The display device 40 and the lighting device 50 which are respectively adjusted are formed.

The imaging device 10 selects and stores the eyelid image of the user. The eyelid images are still images, and a plurality of them are photographed at regular time intervals. As shown in FIG. 3, the area A of the eyelids is calculated for each image to determine the degree of the eyelid being closed by the user.

In addition, the imaging device 10 is preferably embedded in the aesthetic appearance display device 40 is not exposed to the outside, it may be provided on one side of the display device 40 to periodically photograph the eyelid image of the user, various shapes and It can be installed in a way.

The storage unit 20 is provided at one side of the control unit 30 to be described later, and selects the image data photographed and recognized by the imaging device 10, and compares the area of each image so as to generate a control signal. 21) is stored.

The program data 21 is used after selecting and storing image values of eyelids that are gradually changed in image data input periodically.

The controller 30 is electrically connected to the display device 40 and the lighting device 50, respectively, so that the display device 40 and the lighting device 50 are controlled using a general remote controller 31. In addition, the display device 40 and the lighting device 50 are controlled so that the screen brightness of the display device 40 and the lighting device 50 is controlled by comparing and calculating the program data 21 based on the periodically input image data. ), The brightness control signal is sent out.

Meanwhile, the program data 21 is set as a first reference image having a wound area of the user's eyelid in a range of 60 to 100%, and a second reference image having a wound area of the user's eyelid in a range of 1 to 59%. According to the setting of the program data 21, the display device 40 and the lighting device 50 display the current image data maintained for a predetermined time within the range of the program data 21 set as the first reference image. When the brightness of the device 40 and the lighting device 50 is adjusted downward by the controller 30 and the current image data maintained for a predetermined time within the program data 21 set as the second reference image, the display device The brightness of the 40 and the lighting device 50 may be maintained by the controller 30 at the time of upward adjustment or power input.

In addition, the display device 40 and the lighting device 50 may adjust the brightness downward when the image data is included in the first reference image range, and adjust the brightness upward when included in the second reference image range.

The display device 40 includes a general television, a monitor, a mobile phone, a video player, and the like. The lighting device 50 includes LEDs, LEDs, incandescent lamps, and fluorescent lamps. It is possible to adjust, but is not necessarily limited to this.

The controller 30 allows the brightness of the display device 40 and the lighting device 50 to be automatically switched by the eyelid area value set in the program data 21 or can be manually adjusted by the user's selection. In this case, when the user selects the automatic adjustment by the program data 21 through the remote controller 31, a lamp or the like indicating the automatic adjustment state is provided at one side of the display device 40 or the remote controller 31 so that the user may receive the corresponding information. To be aware of.

On the other hand, the lighting device 50 is electrically connected to the control unit 30 and the brightness is adjusted according to a control signal, the brightness is controlled or controlled as a control signal for controlling the display device 40, or a separate control The brightness can be adjusted via the signal.

In the brightness control method of the display device using the image pickup device according to the present invention, as shown in Figure 5, by using the image pickup device 10 to identify a specific part of the user's body, preferably by detecting the eyelid area as image data The image data is transmitted to the control unit 30.

When the image data 21 is input to the controller 30, the controller 30 compares whether current image data maintained for a predetermined time through the predetermined program data 21 is included in the range of the program data 21. If the current image data is included in the program data 21 range, the brightness control signal is transmitted to the controller 30. If the current image data is not in the program data 21 range, the current image data is returned to the initial state, and the current image data is updated and input to the controller 30.

On the other hand, if the current image data is in the program data 21 range, the brightness of the display device 40 is adjusted by the controller 30.

In addition, in the step of transmitting the brightness control signal to the display device 40, the brightness control signal is transmitted to the lighting device 50 electrically connected to the controller 30. In this case, the controller 30 may be controlled by the display device 40 and the lighting device 50 with the same control signal, or may be individually controlled according to the user's selection.

In addition, when the display device 40 includes the current image data input to the program data 21 set as the first and second reference images, respectively, through the real-time image data of the plurality of eyelids recognized in the step of adjusting the brightness, The brightness of the display device 40 is adjusted downward or upward. When the brightness of the display device 40 or the lighting device 50 is upwardly adjusted, the brightness of the display device 40 or the lighting device 50 may be gradually increased in the state of being initially brightened or downregulated according to the power input to the remote controller 31 or the switch. .

The brightness of the display device 40 is adjusted when the user's eyelid area includes current image data maintained for a predetermined time within a range of program data 21 set as a first reference image having a range of 60 to 100%. When the brightness of the 40 is adjusted downward by the controller 30 and the current image data maintained for a predetermined time within the range of the program data 21 set as the second reference image in the range of 1 to 59%, the display device 40 By adjusting the brightness of the control unit 30 upward, the brightness of the display device 40 is adjusted according to the changed eyelid area to induce the user to sleep and to reduce the power consumption at night or at night time. It can be.

The program data 21 is classified to the extent of the user's eyelid wound, but is not necessarily limited to this, and may be controlled by the amount of illumination input through an external illumination sensor according to a user's selection, or may be set at various times. Of course.

On the other hand, the lighting device 50 is electrically connected to the controller 30, the brightness control signal for controlling the brightness of the display device 40 is transmitted to the controller 30 in the step of the same control signal by the lighting device ( 50) brightness can be adjusted. The brightness of the lighting device 50 may be simultaneously controlled by the controller 30 in the same manner as the display device 40, and the brightness may be individually controlled by a separate control signal.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand. Therefore, the true technical protection scope of the present invention will be defined by the claims below.

10: imaging device 20: storage unit
21: program data 30: control unit
31: remote controller 40: display device
50: lighting device

Claims (18)

An imaging device;
A storage unit for storing program data compared with the image data recognized by the imaging device;
A controller configured to generate a control signal for adjusting brightness by comparing the image data with program data;
A display device electrically connected to the control unit and configured to adjust brightness by a control signal; And
And a lighting device electrically connected to the control unit and configured to adjust brightness by a control signal. The method of claim 1,
The display device and the lighting device brightness control device of the display device using the image pickup device that the brightness is individually or simultaneously adjusted according to the user selection. The method of claim 1,
The program data is a brightness adjusting device of a display device using an image pickup device configured with a first reference image having a wound area of the user's eyelid in a range of 60 to 100% and a second reference image having a wound area of the user's eyelid in a range of 1 to 59%. . The method of claim 1,
And the controller is configured to adjust the brightness of the display device downward or upward when the image data is included in the program data range set as the first reference image or the second reference image. The method of claim 1,
And the controller is configured to adjust the brightness of the illumination device downward or upward when the image data is included in the program data range set as the first reference image or the second reference image. 5. The method of claim 4,
The display device brightness control device of the display device using the image pickup device that the brightness is adjusted downward when the image data is included in the first reference image range. 5. The method of claim 4,
The display device is a brightness control device of the display device using the image pickup device that the brightness is adjusted upward when the image data is included in the second reference image range. The method of claim 5,
The illumination device is a brightness control device of the display device using the image pickup device that the brightness is adjusted downward when the image data is included in the first reference image range. The method of claim 5,
The illumination device is a brightness control device of the display device using the image pickup device that the brightness is adjusted upward when the image data is included in the second reference image range. The method of claim 1,
The image pickup device is a brightness control device of the display device using the image pickup device built in the display device or selectively provided on one side of the display device. Scanning the user's eyelid area and recognizing it as image data;
Comparing the recognized image data with preset program data;
Generating a brightness control signal when the recognized image data is included in the set program data range; And
And adjusting the brightness of the display device by the generated brightness control signal. The method of claim 11,
And adjusting brightness of an ambient lighting device in the step of generating the brightness control signal. The method of claim 12,
The display device and the lighting device brightness control method of the display device using the image pickup device to adjust the brightness individually or simultaneously according to user selection. The method of claim 11,
Adjusting the brightness of the display device in the step of adjusting the brightness of the display device includes the image data persisting within the program data range set as the first reference image or the second reference image through the recognized image data. A brightness control method of a display device using an image pickup device that adjusts the brightness downward or upward. The method of claim 12,
In the step of adjusting the brightness of the lighting device, if the brightness control of the lighting device includes image data that persists within the program data range set as the first reference image or the second reference image through the recognized image data, A brightness control method of a display device using an image pickup device that adjusts the brightness downward or upward. 16. The method according to claim 14 or 15,
And the first reference image has a wound area of the user's eyelid in a range of 60 to 100%, and the second reference image has a wound area of the eyelid in a range of 1 to 59%. 17. The method of claim 16,
And adjusting the brightness of the display device or the lighting device when the image data is within the first reference image range. 17. The method of claim 16,
And adjusting the brightness of the display device or the lighting device when the image data is within the second reference image range.
KR1020110078002A 2011-08-05 2011-08-05 Brightness control method of display using image device and that method KR20130015780A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9378695B2 (en) 2013-07-30 2016-06-28 Samsung Display Co., Ltd. Liquid crystal display and driving method thereof
CN114710584A (en) * 2020-12-17 2022-07-05 惠仁康宁(苏州)健康科技有限公司 Display performance adjusting method for personal display terminal to adapt to human eye representation change

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9378695B2 (en) 2013-07-30 2016-06-28 Samsung Display Co., Ltd. Liquid crystal display and driving method thereof
CN114710584A (en) * 2020-12-17 2022-07-05 惠仁康宁(苏州)健康科技有限公司 Display performance adjusting method for personal display terminal to adapt to human eye representation change

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