TWI459811B - Display device with automatically adjusting holder - Google Patents

Description

Automatically adjust the display of the stand

This invention relates to a display, and more particularly to a display that automatically adjusts the stand.

The display is provided with a bracket (including a bracket seat) for fixing and supporting the screen. The bracket can be divided into a fixed bracket and a movable bracket. The height and curvature of the fixed bracket are fixed, and the height and curvature can not be adjusted to raise and lower the screen. The height and curvature of the movable bracket are variable, and the height and curvature can be adjusted to move up and down the screen.

In terms of physiological characteristics, if the display uses a fixed bracket, it may cause the screen to be easily seen by adults because of the difference in height, and the child needs to look up hard to see the dilemma of the screen. Although the movable bracket with manual adjustment function can improve the above situation, it is impossible for the user to pay attention to the change of the sitting posture at any time to raise and lower the screen through the adjustment of the height and curvature of the bracket, so there is still some inconvenience. .

However, incorrect sitting posture can affect your health, such as back pain, neck and shoulder stiffness or sore eyes. Precautions for using the display include: 1. The center of the screen should be at the same height as the user's chest, and the screen should be 0.6 to 0.7 meters from the user. 2. The elbow should be higher than the desktop. 3. The keyboard should be close to the hand and the elbows should be level with the shoulders. 4. The height of the seat should be appropriate to facilitate stretching the legs and not to press the lower limbs. 5. Both feet should be placed on the ground, not under the buttocks.

In view of this, it is possible to propose a new technical solution for use in the field of displays or LCD TVs, so that the bracket can automatically raise and lower the screen in response to the user's current sitting posture, so that the screen and the eyes maintain an appropriate distance and height. In addition, the display can send a warning message to remind the user when the user is sitting incorrectly, so that the user pays attention to his sitting posture.

SUMMARY OF THE INVENTION A primary object of the present invention is to provide a display that automatically adjusts the stand to detect the user's eyes in front of the screen and to generate an adjustment signal to control the movement of the screen.

To achieve the above objective, the present invention provides a display capable of automatically adjusting a stand, including a screen, a data providing module, a signal generating module, and a bracket control module. The screen is provided with a photographic lens and a bracket, and the photographic lens detects the user's eyes in front of the screen; the data providing module is electrically connected to the photographic lens to define a first line from the user's eyes to the photographic lens and a second line on the upper edge of the screen. Providing an adjustment data including a length of the first straight line, an angle between the first straight line and the second straight line, and an angle between the first straight line and the screen; the signal generating module is electrically connected to the data providing module to receive the adjusted data to calculate the eye including the user The distance, height, and angle adjustment signals to the screen; the bracket control module is electrically connected to the signal generating module to receive the adjustment signal to control the bracket to move the screen.

A display that automatically adjusts the stand as described above, wherein the display is a liquid crystal display, a plasma display, or a projection display.

A display that automatically adjusts the stand as described above, wherein the stand has a motor.

A display that automatically adjusts the stand as described above, wherein the stand has a transmission unit.

A display that automatically adjusts the stand as described above, wherein the stand has a rotating shaft.

A display that automatically adjusts the stand as described above, wherein the photographic lens is positioned directly above the screen.

The display capable of automatically adjusting the stand as described above, wherein the photographic lens captures an image in front of the screen at a specific time to detect the eyes of the user in front of the screen.

Thereby, the display of the automatic adjustment bracket of the invention can detect the eyes of the user in front of the screen, and generate an adjustment signal to control the movement of the screen to maintain an appropriate distance and height between the screen and the user, thereby avoiding an incorrect sitting posture. The health of the user.

The invention will be described in detail by the following detailed description of the embodiments of the invention and the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a functional block diagram of a display of the present invention that automatically adjusts the stand. Referring to FIG. 1 , the display 1 that can automatically adjust the bracket includes a screen 11 , a data providing module 12 , a signal generating module 13 , and a bracket control module 14 . The display 1 can be a liquid crystal display, a plasma display or a projection display.

2 is a schematic view showing the appearance of a display capable of automatically adjusting a stand of the present invention. Referring to FIG. 2, the screen 11 is provided with a photographic lens 111 and a bracket 112. The photographic lens 111 is located directly above the screen 11. The photographic lens 111 captures the image in front of the screen 11 at a specific time and recognizes the image through the face recognition program. The user's eye E in the captured image and the position of the user's eye E are positioned through the pupil positioning program, and the infrared light is transmitted to the user's eye E through the infrared transceiver sensor, and the infrared light return time and the wavelength of the infrared light The distance from the photographic lens 111 to the user's eye E is estimated. The photographing lens 111 can adjust the length of a specific time to change the shooting frequency of the image.

The bracket 112 can be positioned below the screen 11, and the bracket 112 can include a motor 113, a transmission unit 114, and a rotating shaft 115. The bracket 112 can move the screen 11 left and right, front and rear, and up and down.

FIG. 3 is a schematic diagram of definition of a data providing module. Referring to FIG. 3, the data providing module 12 is electrically connected to the photographic lens 111. The data providing module 12 defines a first straight line L1 of the user's eye E to the photographic lens 111 and a second straight line L2 of the upper edge of the screen 11. The length M1 of the straight line L1, the angle θ1 between the first straight line L1 and the second straight line L2, and the adjustment data of the angle θ2 between the first straight line L1 and the screen 11. 4 is a schematic diagram of calculation of a signal generation module. Referring to FIG. 4, the signal generating module 13 is electrically connected to the data providing module 12, and the signal generating module 13 receives the adjusting data provided by the data providing module 12, and is based on the user's eye E, the photographic lens 111, and the user's eyes. The three points of the projection point A on the screen 11 are equivalent to the three vertices of the right triangle, and the length M1 of the first line L1, the angle θ1 between the first line L1 and the second line L2 are applied by a trigonometric function formula to calculate the user including The adjustment signal of the distance, height and angle of the eye E to the screen 11. The signal generating module 13 calculates the distance D between the user's eye E and the screen 11 by using the length M1 of the first straight line L1, the angle θ1 of the first straight line L1 and the second straight line L2, and the sine trigonometric function, and calculating the use with the cosine trigonometric function. The height E of the eye E to the screen 11.

The bracket control module 14 is electrically connected to the signal generating module 13. The bracket control module 14 receives the adjustment signal provided by the signal generating module 13 to control the bracket 112. The bracket 112 moves the screen 11 according to the adjustment signal.

Figure 5 is a schematic illustration of the user in front of the screen. Referring to FIG. 5, the signal generating module 13 receives the adjustment data provided by the data providing module 12, and uses the angle θ2 between the first line L1 and the screen 11 from the adjustment data to determine whether the screen 11 is in the user's positive position. In front. When the user is positioned directly in front of the screen 11, the angle θ2 between the first straight line L1 and the screen 11 will be equal to 90 degrees. Figure 6 is a schematic illustration of the user's position on the left side of the screen. Referring to FIG. 6, when the user is located on the left side of the screen 1, the angle θ2 between the first straight line L1 and the screen 11 is less than 90 degrees. In this example, the angle θ2 between the first straight line L1 and the screen 11 is 60 degrees. Therefore, the signal generating module 13 generates an adjustment signal for the bracket control module 14 to control the screen 11 to be rotated 30 degrees to the left to face the user. Figure 7 is a schematic illustration of the user's position on the right side of the screen. Referring to FIG. 7, when the user is located on the right side of the screen 11, the angle θ2 between the first straight line L1 and the screen 11 is greater than 90 degrees. In this example, the angle θ2 between the first straight line L1 and the screen 11 is 135 degrees. Therefore, the signal generating module 13 generates an adjustment signal for the bracket control module 14 to control the screen 11 to be rotated 45 degrees to the right to face the user.

Figure 8 is a schematic illustration of the user maintaining an appropriate distance from the screen. Referring to FIG. 8 , the signal generating module 13 receives the adjustment data provided by the data providing module 12 , and uses the length M1 of the first straight line L1 and the angle θ1 between the first straight line L1 and the second straight line L2 to determine the adjustment data. Whether the user and the screen 11 maintain an appropriate distance. The signal generation module 13 applies the length M1 of the first straight line L1, the angle θ1 between the first straight line L1 and the second straight line L2 to the sine trigonometric function formula, and calculates the distance D from the user's eye E to the screen 11. When the user is at an appropriate distance from the screen 11, the distance D from the user's eye E to the screen 11 may be 65 cm (any one of 60 cm to 70 cm). Figure 9 is a schematic illustration of the user as it is closer to the screen. Referring to FIG. 9, when the user is closer to the screen 11, the distance D of the user's eye E to the screen 11 is less than 65 cm. In this example, the distance D of the user's eye E to the screen 11 is 30 cm. Therefore, the signal generating module 13 generates an adjustment signal for the bracket control module 14 to control the screen 11 to maintain an appropriate distance from the user by 35 cm away from the user in the direction indicated by the arrow 21. Figure 10 is a schematic illustration of the user as he is far from the screen. Referring to FIG. 10, when the user is far away from the screen 11, the distance D of the user's eye E to the screen 11 may be greater than 65 cm. In this example, the distance D of the user's eye E to the screen 11 is 75 cm. Therefore, the signal generating module 13 generates an adjustment signal for the bracket control module 14 to control the screen 11 to approach the user 15 centimeters in the direction indicated by the arrow 22 to maintain an appropriate distance from the user.

Figure 11 is a schematic illustration of the user maintaining a suitable height with the screen. Referring to FIG. 11 , the signal generating module 13 receives the adjustment data provided by the data providing module 12 , and uses the length M1 of the first straight line L1 and the angle θ1 between the first straight line L1 and the second straight line L2 to determine the adjustment data. Whether the user and the screen 11 maintain an appropriate distance. The signal generation module 13 applies the length M1 of the first straight line L1, the angle θ1 between the first straight line L1 and the second straight line L2 to the cosine trigonometric function formula, and calculates the height H of the user's eye E and the screen 11. When the user maintains an appropriate height with the screen 11, it means that the projection point A of the user's eye E on the screen 11 is located at one third of the screen 11 (closer to the photographic lens 111), in this example, assuming an appropriate height H It is 50 cm. Figure 12 is a schematic view of the screen when the height is too high. Referring to FIG. 12, when the height of the screen is too high, the height H of the user's eye E and the screen 11 may be greater than 50 cm. In this example, the height H of the user's eye E and the screen 11 is 75 cm. Therefore, the signal generating module 13 generates an adjustment signal for the bracket control module 14 to control the screen 11 to descend 25 cm in the direction indicated by the arrow 23 to maintain an appropriate height with the user. Figure 12 is a schematic view of the screen when the height is too low. Referring to Figure 13, when the height of the screen is too low, the height H of the user's eye E and the screen 11 will be less than 50 cm. In this example, the height H of the user's eye E and the screen 11 is 30 cm. Therefore, the signal generating module 13 generates an adjustment signal for the bracket control module 14 to control the screen 11 to rise 20 centimeters in the direction indicated by the arrow 24 to maintain an appropriate height with the user.

In the above adjustment process, it is determined whether the screen 11 is located directly in front of the user, and then it is determined whether the user and the screen 11 are at an appropriate distance, and finally whether the user and the screen 11 are maintained at an appropriate height.

The signal generating module 13 can also display warning information on the screen 11, for example, "automatic adjustment" and "correct posture for your health advice" to remind the user.

In summary, the display of the automatic adjustment bracket of the present invention can detect the eyes of the user in front of the screen, and generate an adjustment signal to control the movement of the screen to maintain an appropriate distance and height between the screen and the user, thereby avoiding incorrect Sitting posture affects the health of the user.

The present invention has been described above by way of examples, and is not intended to limit the scope of the claims. The scope of patent protection is subject to the scope of the patent application and its equivalent fields. Modifications or modifications made by those skilled in the art, without departing from the spirit or scope of the invention, are equivalent to the equivalents or modifications made in the spirit of the invention and should be included in the following claims. Inside.

1. . . Automatically adjust the display of the stand

11. . . Screen

111. . . Photographic lens

112. . . support

113. . . motor

114. . . Transmission unit

115. . . Rotating shaft

12. . . Data providing module

13. . . Signal generation module

14. . . Bracket control module

21, 22, 23, 24. . . arrow

E. . . User's eyes

L1. . . First straight line

L2. . . Second straight line

M1. . . Length of the first line

Θ1. . . The angle between the first line and the second line

Θ2. . . The angle between the first line and the screen

D. . . The distance from the user's eyes to the screen

H. . . The height of the user's eyes to the screen

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a functional block diagram of a display of the present invention that automatically adjusts the stand.

2 is a schematic view showing the appearance of a display capable of automatically adjusting a stand of the present invention.

FIG. 3 is a schematic diagram of definition of a data providing module.

4 is a schematic diagram of calculation of a signal generation module.

Figure 5 is a schematic illustration of the user in front of the screen.

Figure 6 is a schematic illustration of the user's position on the left side of the screen.

Figure 7 is a schematic illustration of the user's position on the right side of the screen.

Figure 8 is a schematic illustration of the user maintaining an appropriate distance from the screen.

Figure 9 is a schematic illustration of the user as it is closer to the screen.

Figure 10 is a schematic illustration of the user as he is far from the screen.

Figure 11 is a schematic illustration of the user maintaining a suitable height with the screen.

Figure 12 is a schematic view of the screen when the height is too low.

Figure 13 is a schematic view of the screen when the height is too high.

1. . . Automatically adjust the display of the stand

11. . . Screen

12. . . Data providing module

13. . . Signal generation module

14. . . Bracket control module

Claims (7)

A display that automatically adjusts the stand, including:
a screen, the screen is provided with a photographic lens and a bracket, the photographic lens detecting a user's eyes in front of the screen;
a data providing module, the data providing module is electrically connected to the photographic lens, and the data providing module defines a first straight line of the user's eye to the photographic lens, and a second straight line of the upper edge of the screen to provide a length of the first straight line, an angle between the first straight line and the second straight line, and an adjustment data of an angle between the first straight line and the screen;
a signal generating module, the signal generating module is electrically connected to the data providing module, and the signal generating module receives the adjusting data to calculate an adjustment signal including a distance, a height, and an angle of the user's eyes to the screen; A bracket control module is electrically connected to the signal generating module, and the bracket control module receives the adjustment signal to control the bracket to move the screen. A display capable of automatically adjusting a stand according to claim 1, wherein the display is a liquid crystal display, a plasma display or a projection display. A display capable of automatically adjusting a stand according to claim 1, wherein the stand has a motor. A display capable of automatically adjusting a stand according to claim 1, wherein the stand has a transmission unit. A display capable of automatically adjusting a stand according to claim 1, wherein the stand has a rotating shaft. A display capable of automatically adjusting a stand according to claim 1, wherein the photographic lens is located directly above the screen. The display capable of automatically adjusting the bracket according to claim 1, wherein the photographic lens captures an image of the front of the screen at a specific time to detect the user's eyes in front of the screen.