TWI413975B - Controlling system and method of a displaying device - Google Patents

Abstract

A controlling method of a displaying device includes the following steps. The first step is defining a safe distance. The second step is a first analyzing step for calculating the distance between the user and the displaying device, and then determining that the distance between the user and the displaying device is smaller than the safe distance or not. When the distance between the user and the displaying device is larger than or equal to the safe distance, the displaying device outputs signals with a preset parameter. When the distance between the user and the displaying device is smaller than the safe distance, a warning step is executed in a time period to alarm the user. Next step is a second analyzing step for calculating the distance between the user and the displaying device, and then determining that the distance between the user and the displaying device is smaller than the safe distance or not. When the distance between the user and the displaying device is smaller than the safe distance, the displaying device is controlled to display signals with another parameter corresponding to the distance between the user and the displaying device.

Description

Display device control system and method thereof

The present invention relates to a control system for a display device and a method thereof, and particularly to a control system and method for alerting a user or automatically adjusting display parameters of a display device according to a distance between a user and a display device.

With the development of computer systems, in home, office or various public applications, display devices have become interface devices for users to communicate with various electronic devices. Currently, there are a wide variety of display devices on the market, such as conventional cathode ray tube displays, or various flat panel displays, including liquid crystal displays, plasma displays, electroluminescent displays, and field emission displays, etc., which have been widely used. Various electronic devices or information products, such as desktop computers, notebook computers, digital audio and video products, communication devices and personal digital assistants, have gradually become an indispensable part of information life.

In view of the increasing demand for display devices by users, the time for users to look at the display is also greatly increased, and the user may not be consciously close to the display due to watching the display for a long time, resulting in rapid deterioration of the user's vision, or In a dimly lit environment, the user will also try to get close to the display in order to clearly identify the text or graphics presented on the display, thereby causing visual damage to the user.

The inventor of the present invention has in view of the lack of the above-mentioned conventional display system device in actual application, and accumulated an individual engaged in relevant industry development practice for many years. The experience, careful research, finally proposed a structure that is reasonable in design and effective in improving the above problems.

The main object of the present invention is to provide a control system for a display device and a method thereof, which can remind a user according to the distance between a user and a display device, or automatically adjust an output parameter of the display device. In order to protect the user's efficacy.

In order to achieve the above object, the present invention provides a control method for a display device, comprising the steps of: setting a safe distance value; performing a first detecting and analyzing step to obtain a first between a user and the display device a distance value; determining whether the first distance value is less than the safety distance value; when the first distance value is greater than or equal to the safety distance value, the display device displays an initial output parameter, and when the first distance value is less than the safety a distance value, a warning step is performed to remind the user; the warning step is continued during a waiting time; a second detection and analysis step is performed to obtain a second distance between the user and the display device a value; determining whether the second distance value is less than the safety distance value; and when the second distance value is less than the safety distance value, performing a step of changing an output parameter of the display device to control the display device to display a match The output parameter of the second distance value.

In order to achieve the above object, the present invention further provides a control system for a display device, comprising: a computer host having a receiving unit mounted thereon, wherein the receiving unit comprises at least a first connecting module and a display device controller; a display device electrically connected to the computer host; a detecting unit, The second connection module is electrically coupled to the first connection module of the receiving unit; wherein the detection unit is configured to detect and analyze a user and the display The distance between the devices, when the distance between the user and the display device is less than a safe distance value, the display device controller is configured to control the display device to display an output parameter that meets the distance.

For the above system and control method, the detecting unit is configured to detect and analyze the distance between a user and the display device, such as a distance sensor or an image capturing unit, etc., when the user and the user The distance between the display devices is less than the safety distance value, and the display device controller of the receiving unit can control the display device to display an output parameter that meets the distance, so as to protect the user.

For a better understanding of the features and technical aspects of the present invention, reference should be made to the accompanying drawings.

First, referring to the first figure, the present invention provides a control system for a display device and a method thereof to ensure that the user A can maintain an appropriate distance from the display device 20 when using the computer device, and in particular, the control method of the display device of the present invention The user A can be reminded according to the distance L between the user A and the display device 20, or the output parameter of the display device 20 can be automatically adjusted to protect the user A. Please refer to the second and third figures, which are system block diagrams of the first and second embodiments of the display device control system of the present invention, wherein the display device control system comprises: a computer host 10. A display device 20, a detecting unit 30, and a receiving unit 40.

The receiving unit 40 is mounted on the computer host 10, and may be disposed on the display device 20. In the specific embodiment, the receiving unit 40 has a plug-in terminal 401, such as a PCI interface. The terminal 401 is inserted into the PCI slot of the computer host 10, but is not limited to the above. The receiving unit 40 includes at least a processor 404, a first connection module 402, and a display device controller 403. The first connection module 402 is corresponding to the second connection module 302 of the detection unit 30, and The display device controller 403 can then control the output parameters of the display device 20. Furthermore, the receiving unit 40 of the specific embodiment further includes a module such as a memory module 405 and an expandable memory module 406.

On the other hand, the detecting unit 30 is configured to detect and analyze the distance L between the user A and the display device 20. For example, the detecting unit 30 can be a distance sensor or an image capturing unit. The detecting unit 30 can include an indicating module 301; the detecting unit 30 and the receiving unit 40 will be described in detail later.

The computer host 10 and the display device 20 are electronic devices that are common in the art, and will not be described herein.

Please refer to the second figure, and cooperate with the second A figure, which is the first embodiment of the present invention, wherein the detecting unit 30 is a distance sensor, which includes a distance sensing module 303 and an indication module. 301 and the second connection module 302, and in the embodiment, the second connection module 302 is a USB connection module, which includes at least a USB controller and a USB port, but not limited to the above, for example The second connection module 302 can be a wired connection module, such as a USB, mini USB or other connection interface; or the second connection module 302 is a wireless connection module. Groups, such as Bluetooth modules or infrared modules.

In this embodiment, the control method of the display device includes the following steps: as shown in step S201, setting a safe distance value, which is a memory preset in the computer host 10 or the receiving unit 40. The distance value in the module 405 is the comparison reference value of the subsequent step; in addition, the safety distance value is not necessarily a fixed value, and can be stored in the computer host 10 or stored according to the physiological conditions of different users. Module 405.

As shown in step S203, a first detecting and analyzing step is performed to obtain a first distance value between the user A and the display device 20. In this step, the distance sensing module 303 of the detecting unit 30 directly senses the distance L between the user A and the display device 20, and the detecting unit 30 is mounted on the display device. 20, the distance L between the user A and the display device 20 (ie, the first distance value) is measured and analyzed more accurately, thereby reminding the user A to pay attention to whether it is too close to the display device 20.

As shown in step S205, it is determined whether the first distance value is less than the safety distance value. In this step, the first distance value measured by the distance sensing module 303 of the detecting unit 30 is transmitted to the receiving unit 40 by the connection of the second connection module 302 and the first connection module 402. The processor 404 is configured to analyze whether the first distance value is smaller than a preset safety distance value, and perform the following control step of the display device 20 according to the determination value.

As shown in step S207, when the processor 404 determines that the first distance value is greater than or equal to the safety distance value, the display device 20 displays an initial output parameter. The number, in other words, the user A and the display device 20 have a sufficient and safe distance. Therefore, the display device controller 403 of the receiving unit 40 can control the display device 20 to display an initial output parameter through the computer host 10, The adjustment is not made for the output parameters of the display device 20.

On the other hand, as shown in step S209, when the first distance value is less than the safety distance value, an alert step is performed to remind the user A. Therefore, in this step, when the processor 404 determines that the first distance value is less than the safety distance value, the processor 404 controls the indication module 301 to perform a warning step to remind the user A, for example, the indication module. 301 can issue a warning light source, flash or sound; or the processor 404 can control the display device 20 to display a warning window by the display device controller 403 to achieve the purpose of reminding the user A.

Then, the warning step is continued for a waiting time. In this step, the warning step is continued to facilitate the use of the person A to adjust his sitting posture or other body posture. During the waiting time, the display device 20 can continuously display the warning window, and the warning window can include the safety distance value and the first distance value to facilitate the user A to adjust the distance from the display device 20 The warning window further includes a count of the waiting time, for example, a countdown, to notify the user A of the remaining time of the second detecting and analyzing step; and the indicating module 301 continues to emit the warning light source and flash Or sound.

As shown in step S211, a second detection and analysis step is performed to obtain a second distance value between the user A and the display device 20. Therefore, after the waiting time is over, the distance sensing module 303 of the detecting unit 30 is used again to sense the distance L between the computing user A and the display device 20, As described in step 2.

As shown in step S213, the processor 404 is also configured to analyze whether the second distance value is smaller than a previously set safety distance value.

As shown in step S215, when the processor 404 determines that the second distance value is greater than or equal to the safety distance value, the display device 20 displays an initial output parameter, in other words, the user A has adjusted his sitting posture to make the display. The device 20 has a sufficient and safe distance. Therefore, the display device controller 403 of the receiving unit 40 can control the display device 20 to display an initial output parameter through the computer host 10; in addition, as shown in step S217, when the first If the distance value is less than the safety distance value, a step of changing the output parameter of the display device 20 is performed. In other words, the display device controller 403 of the receiving unit 40 can control the display device 20 to display a match through the computer host 10. The output parameter of the second distance value, for example, adjusts the output resolution of the display device 20, the contrast value, and the like to conform to the condition such as the sitting posture of the user A.

On the other hand, before performing the step of changing the output parameters of the display device 20, a confirmation step may be further included to allow the user A to select whether to accept the execution of changing the output parameters of the display device 20, in other words, the user A. It is still up to the discretion whether or not to accept the change of the output parameters of the display device 20.

Furthermore, in another embodiment, after the second detecting and analyzing step, a detecting and analyzing step may be performed to obtain the physiological parameters of the user A, and the physiological parameters are determined to be used to set the physiological parameter again. a safety distance value, and determining whether the second distance value is less than the set safety distance value, and when the second distance value is less than the safety distance value, performing a change of the display device And a step of controlling the display device to display an output parameter that meets the second distance value. In other words, the safety distance value can be set again according to the physiological parameters of the actual user to meet the visual needs of different users.

By the above control steps, the present invention can achieve a method and system for intelligently controlling the display device 20 to effectively protect the visual acuity of the user A.

Please refer to the third embodiment and the third embodiment A, which is a second embodiment of the present invention, which is different from the first embodiment in that the detecting unit 30 is an image capturing unit having an image capturing device. Module 303A.

Therefore, in the specific embodiment, the control method of the display device includes the following steps: as shown in step S301, setting a safe distance value, which is preset to the computer host 10 or the receiving unit 40. The distance value in the memory module 405 is the comparison reference value of the subsequent step; in addition, the safety distance value is not necessarily a fixed value, which can be adjusted according to the physiological conditions of different users.

As shown in step S303, a first detecting and analyzing step is performed to obtain a first distance value between the user A and the display device 20. In this step, the image capturing module 303A of the detecting unit 30 captures the image of the user A, and analyzes the image of the user to calculate the distance between the user A and the display device 20. L, and the detecting unit 30 is mounted on the display device 20 to more accurately measure the distance L between the user A and the display device 20 (ie, the first distance value), thereby reminding the user. A Note if it is too close to the display device 20.

As shown in step S305, determining whether the first distance value is less than the security Distance value. In this step, the image captured by the image capturing module 303A of the detecting unit 30 is transmitted to the receiving unit 40 by the connection of the second connecting module 302 and the first connecting module 402. The processor 404 is configured to calculate a distance represented by the image, for example, using a condition such as a face area and a facial feature proportional relationship, thereby analyzing whether the first distance value is smaller than a preset safety distance value, and The following control steps of the display device 20 are performed based on the above-described determination values.

The control step when the first distance value is less than or equal to or greater than the safety distance value will be carefully explained below.

As shown in step S307, when the first distance value is less than the safety distance value, a warning step is performed to remind the user A. Therefore, in this step, when the processor 404 determines that the first distance value is less than the safety distance value, the processor 404 controls the indication module 301 to perform a warning step to remind the user A, for example, the indication module. 301 can issue a warning light source, flash or sound or restart the display device 20; or the processor 404 can control the display device 20 to display a warning window for the purpose of reminding the user A. Referring to FIG. 3A, after the step, the control method of the display device further includes: performing the warning step for a waiting time, performing a second detecting and analyzing step (as shown in step S309), determining the first Whether the second distance value is smaller than the safety distance value (as shown in step S311), and the step of changing the output parameter of the display device 20 (as shown in step S313) or controlling the display device 20 to display an initial output parameter (such as the step) S315), the above steps are the same as the first embodiment, please refer to the description of the first embodiment.

When the processor 404 determines that the first distance value is greater than or equal to the safety distance The value further includes a face image matching step (as shown in step S317). In this step, the processor 404 is used to analyze the facial image feature of the user A that is retrieved to correspond to a lookup table to the identity of the user A. When the comparison meets the identity of the user A, The processor 404 reads the data corresponding to the identity of the user A by the memory module 405, and controls the display device 20 to display the output parameters corresponding to the identity of the user A by using the display device controller 403 (steps S319, S321). Shown).

On the other hand, when the facial image matching step cannot be compared with the identity of the user A in the lookup table, the processor 404 analyzes the facial image feature of the captured user A. The visual parameter of the user A is obtained, and the output parameter of the display device 20 is adjusted according to the visual parameter of the user (as shown in steps S323 and S321). For example, the processor 404 can analyze the visual acuity parameters such as the myopia degree and the astigmatism value of the user A, and adjust the display conditions such as the resolution and contrast of the display device 20 according to the visual acuity parameter. The display device controller 403 of the receiving unit 40 can control the display device 20 to output the user A according to the image feature of the user A through the computer host 10 through the above steps. The display parameter recorded before; or when the identity data is not recorded in the lookup table, the display device controller 403 can adjust the output content of the display device 20 according to the visual parameter of the user A.

After the above steps, the method further includes the step of storing the identity of the user A in the lookup table (the lookup table can be stored in the memory module 405 or the expandable memory module 406 or the computer host 10) (step S327). Shown), and one will store the output parameters of the display device 20 corresponding to the person A The step of the memory module 405 (as shown in step S327). Therefore, when the user A uses the system again, the processor 404 can compare the corresponding data in the lookup table to control the display device 20 to display the output parameter corresponding to the identity of the user A.

Furthermore, in order to ensure that the output parameter of the display device 20 stored in the memory module 405 is a correct data (for example, the distance L between the user A and the display device 20 must be greater than the above-mentioned safe distance value), the display device 20 is displayed. Before the step of storing the output parameter in the memory module 405, the method further includes a third detecting and analyzing step (as shown in step S325), which also uses the image capturing module 303A of the detecting unit 30 to capture the use. The image of the person A, and analyzing the image of the user A to calculate the distance L between the user A and the display device 20 (ie, the third distance value), and determining whether the third distance value is less than the safety distance value . If the third distance value is greater than or equal to the safety distance value, the output parameter of the display device 20 is stored in the memory module 405; otherwise, if the user A does not maintain the proper distance, the system returns to the previous step. The output parameters of the display device 20 are further stored in the memory module 405 until the user A maintains the safe distance value.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and the equivalents of the present invention are intended to be included within the scope of the present invention.

10 ‧‧‧Computer host

20 ‧‧‧Display device

30 ‧‧‧Detection unit

301 ‧‧‧Indicating module

302 ‧‧‧Second connection module

303 ‧‧‧ distance sensing module

303A ‧‧‧Image Capture Module

40 ‧‧‧Receiving unit

401 ‧‧‧Interposed terminals

402 ‧‧‧First connection module

403 ‧‧‧Display device controller

404 ‧‧‧ processor

405 ‧‧‧Memory Module

406 ‧‧‧Expandable Memory Module

A ‧‧‧users

S201~S217 ‧‧‧Process step description

S301~S327 ‧‧‧Process step description

L ‧‧‧Distance between the user and the display device

The first figure is a schematic diagram of the user and display device of the present invention.

The first A diagram is a schematic diagram of the detection unit of the present invention.

The second figure is a control system of the display device according to the first embodiment of the present invention. Block diagram.

The second A diagram is a flowchart of a control method of the display device according to the first embodiment of the present invention.

The third figure is a block diagram of a control system of a display device according to a second embodiment of the present invention.

The third A diagram is a flowchart of a control method of the display device according to the first embodiment of the present invention.

S301~S327‧‧‧Process step description

Claims (18)

A control method for a display device includes the steps of: setting a safe distance value; providing an image capturing unit to capture an image of the user, and analyzing the image of the user to obtain the user and the Displaying the first distance value between the devices; determining whether the first distance value is less than the safety distance value; when the first distance value is greater than or equal to the safety distance value, the display device displays an initial output parameter, and when the first If the distance value is less than the safety distance value, a warning step is performed to remind the user; the warning step is continued during a waiting time; and a second detection and analysis step is performed to obtain the user and the display a second distance value between the devices; determining whether the second distance value is less than the safety distance value; and when the second distance value is less than the safety distance value, performing a step of changing an output parameter of the display device to control the The display device displays an output parameter that conforms to the second distance value. The method for controlling a display device according to claim 1, wherein the first detecting and analyzing step provides a distance sensor for detecting and analyzing the first between the user and the display device. Distance value. The control method of the display device according to claim 1 or 2, wherein when the first distance value is greater than or equal to the safety distance value, a face image comparison step is further included to correspond to a lookup table. The identity of the user, when the identity of the user is met, the information corresponding to the identity of the user is read by a memory module to control the display device Displays output parameters that correspond to the person's identity. The control method of the display device according to claim 1 or 2, wherein when the first distance value is greater than or equal to the safety distance value, a face image comparison step is further included to correspond to a lookup table. In the identity of the user, when the identity of the user does not conform to the lookup table, the image of the user is analyzed to obtain the visual parameter of the user, and the output parameter of the display device is adjusted according to the visual parameter of the user. The control method of the display device according to claim 4, wherein after the step of adjusting the output parameter of the display device according to the visual parameter of the user, the method further comprises: depositing the identity of the user into the lookup table, And a step of storing the output parameters of the display device in a memory module. The control method of the display device of claim 5, wherein before the step of storing the output parameter of the display device in a memory module, a third detecting and analyzing step is further included to obtain the user. And a third distance value between the display device and determining whether the third distance value is less than the safety distance value. The method for controlling a display device according to claim 2, wherein the warning step comprises: indicating, by the distance sensor or the image capturing unit, a warning light source or a warning sound, or the warning The step is when the display device displays an alert window or restarts one of the displays. The control method of the display device according to claim 7, wherein the warning window includes the safety distance value and the first distance value And the count of the waiting time. The control method of the display device according to claim 1, wherein the display device displays an initial output parameter when the second distance value is greater than or equal to the safety distance value. The control method of the display device according to claim 1, wherein before the step of changing the output parameter of the display device, a confirmation step is further included to allow the user to select whether to accept the change of the output of the display device. Execution of parameters. A display device control system includes: a computer host having a receiving unit mounted thereon, wherein the receiving unit includes at least a first connecting module and a display device controller; and a display device electrically connected The display device is configured to control the display device; the image capture unit includes a second connection module and an image capture module, and the second connection module is electrically The first connection module is coupled to the first connection module, the image capture module is configured to capture an image of the user, and the image is connected to the first connection module by the second connection module The connection is transmitted to the receiving unit; wherein the image capturing unit analyzes the image to calculate a distance between the user and the display device, when the distance between the user and the display device is less than one The safety device value is used to control the display device to display an output parameter that meets the distance. The control system of the display device of claim 11, wherein the first connection module and the second connection module are corresponding The connection module is a wired connection module or a wireless connection module. The control system of the display device according to claim 12, wherein the wired connection module is a USB module or a mini USB module, and the wireless connection module is a Bluetooth connection module or an infrared connection module. . The control system of the display device of claim 11, wherein the detecting unit further comprises an indicating module. The control system of the display device of claim 11, wherein the receiving unit further comprises a processor and a memory module. The control system of the display device according to claim 11, wherein a lookup table is established in the memory module. The control system of the display device according to claim 11, wherein a lookup table is established in the computer host. A control method for a display device, which is used in a control system for a display device according to claim 11, comprising at least the steps of: obtaining at least one physiological information of the user; setting a safe distance value; performing one a first detecting and analyzing step of obtaining a first distance value between a user and the display device; determining whether the first distance value is less than the safety distance value; and when the first distance value is greater than or equal to the safety distance value The display device displays an initial output parameter, and when the first distance value is less than the safe distance value, performing a warning step, the warning step comprising selecting from the hair Flashing, sounding an alert, and restarting one of the display devices to alert the user; continuing the alerting step during a waiting time; performing a second detecting and analyzing step to obtain the user and the Displaying a second distance value between the devices; performing a detecting and analyzing step to obtain a physiological parameter of the user; determining the physiological parameters to set the safety distance value again; determining whether the second distance value is less than The safety distance value; and when the second distance value is less than the safety distance value, performing a step of changing an output parameter of the display device to control the display device to display an output parameter that meets the second distance value.