CN110211496B - Curved surface display and curvature adjusting method thereof - Google Patents

As shown in fig. 1 to 4, an embodiment of the present invention provides a curved display, including: the

detection unit

1 is used for detecting the number and the positions of users and feeding back the detection result to the

processing unit

2; the

processing unit

2 is used for calculating a first curvature according to the detection result of the

detection unit

1 and outputting a corresponding first command; and the input end of the

curvature adjusting mechanism

3 is connected with the

processing unit

2 and is used for receiving the first command and adjusting the preset curvature of the

flexible display module

4.

The

detection unit

1 is used for detecting the number of users watching the curved-surface display and the positions where the users are located, the curved-surface display can be a curved-surface television, when only one user watches the curved-surface television, the number of the users and the positions where the users are located are one person and the detection results detected by the

detection unit

1 include the distance from the curved-surface television and the like, when a plurality of people watch the curved-surface television at the same time, the detection results detected by the

detection unit

1 include the total number of the users and the positions where the users are located. The detecting

unit

1 may be arranged in various forms and manners, and it is only necessary to detect the number and the positions of the users, for example, the detecting

unit

1 may be an infrared sensor, i.e. a measuring system using infrared rays as a medium. The

detection unit

1 feeds back the detection result to the

processing unit

2, and the

processing unit

2 processes and calculates the first curvature after obtaining the detection result of the

detection unit

1, where the first curvature is the optimal curvature of the curved display under the use condition, that is, the curved display is at the first curvature, so that the user can enjoy a good visual effect at the present time. Specifically, the

processing unit

2 may be an MCU, i.e., a micro control unit and a single chip microcomputer, which can perform operations and controls, and has the advantages of small size and low cost. The

curvature adjusting mechanism

3 is used for adjusting the curvature of the curved display, and the

curvature adjusting mechanism

3 may have a plurality of specific setting forms, and is only required to adjust the curvature of the curved display, and the adjustment form may be to adjust each portion of the curved display to change the overall curvature of the curved display, or to adjust the overall curvature of the curved display, and is not limited herein. The input end of the

curvature adjusting mechanism

3 is connected with the

processing unit

2, the

processing unit

2 can output a corresponding first command to the

curvature adjusting mechanism

3 after calculating the first curvature, the first command is a command for controlling the

curvature adjusting mechanism

3 to adjust the

flexible display module

4 from the preset curvature to the first curvature so as to complete the adjustment of the curvature of the

flexible display module

4, and the preset curvature is the initial curvature of the

flexible display module

4 or the curvature before the adjustment.

As shown in fig. 1, fig. 2, and fig. 4, the curved surface display according to the present embodiment further includes: flexible

protective housing

5 and

display backshell

6, flexible

protective housing

5 sets up in the outside of flexible

display module assembly

4, and the middle part of the first side surface of flexible

protective housing

5 is passed through

fixed axle

7 and is connected with

display backshell

6. Wherein,

display backshell

6 is the shell that is arranged in fixed flexible

display module assembly

4 among the prior art, can have fixed camber, and it has sufficient intensity, can adopt stainless steel material to make, and can set up

base

8 in

display backshell

6's downside and be used for supporting.

Display backshell

6 in this embodiment is used for fixed and protection

flexible display module

4 equally, but because

flexible display module

4 in this embodiment has the adjustable function of camber, so

flexible display module

4 need be connected with

display backshell

6 through flexible

protective shell

5, specific connected mode is for setting up

fixed axle

7 at the first side surface of flexible

protective shell

5, first side surface here is the surface towards

display backshell

6, the inboard fixed surface through

fixed axle

7 and display

backshell

6, can realize the fixed action to

flexible display module

4 position, and the position setting of

fixed axle

7 is in the middle part of flexible

protective shell

5, and set up the direction and be vertical direction, can not influence the change of

flexible display module

4 camber. Flexible

protective housing

5 sets up the outside at

flexible display module

4, specific flexible

protective housing

5 can be with the dorsal part of

flexible display module

4 and the marginal non-display area parcel of luminous side, the realization is to the fixed action of

flexible display module

4, its shape and camber and

flexible display module

4 looks adaptation, it can adjust

flexible display module

4 jointly to

flexible display module

4 and flexible

protective housing

5 through

camber adjustment mechanism

3 to adjust

flexible display module

4 when needs, can be when realizing the regulation of 4 curvatures of flexible display module, do not influence the fixed effect of

flexible display module

4.

The

fixing shaft

7 is used for connecting the flexible

protective shell

5 and the display

rear shell

6, in addition, the

processing unit

2 can be arranged on the

fixing shaft

7, specifically, the

processing unit

7 can be accommodated through the groove body which is arranged on the

fixing shaft

7 in a concave mode, the

processing unit

2 can be an MCU arranged on the main board, the size of the groove body can be matched with that of the main board, and the main board can be provided with a power supply and other electric devices. Disposing the

processing unit

2 on the

fixed shaft

7 can facilitate the connection of the

curvature adjusting mechanism

3 and the detecting

unit

1 with the

processing unit

2.

As shown in fig. 2 and 4, the detecting

unit

1 may be disposed in various specific forms and manners, for example, the detecting

unit

1 is disposed in the middle of the second side surface of the flexible

protective casing

5, and the detecting

unit

1 is disposed as an infrared sensor. Firstly, for the purpose of detecting the number and the positions of users, the position of the

detection unit

1 should be set on the side surface of the flexible

protective shell

5 facing the users, the second side surface of the flexible

protective shell

5 is the side surface of the flexible

protective shell

5 facing the users, secondly, the position corresponding to the curvature center of the curved display is the optimal viewing area, the position of the

detection unit

1 for accurately detecting the positions of the users should be set in the middle of the second side surface of the flexible protective shell, where the middle is the position corresponding to the curvature center of the

flexible display module

4, specifically, the

detection unit

1 may be set in the middle of the upper side of the second side surface of the flexible

protective shell

5, or the

detection unit

1 may also be set in the middle of the lower side of the second side surface of the flexible

protective shell

5, and no specific limitation is made here. Specifically, the

detection unit

1 may be configured as an infrared sensor, which is a measurement system using infrared rays as a medium, and can search and spatially locate a user viewing the curved display, thereby achieving the effect of detecting the number of users and the position of the user. The infrared sensor can be connected with the

processing unit

2 through a

wire

9 to feed back a detection result to the

processing unit

2, and specifically, the sensing end of the infrared sensor can be arranged in the middle of the second side surface of the flexible

protective shell

5, that is, only the sensing end of the infrared sensor is exposed to the outside, and the coming connection end of the infrared sensor can be connected with the

processing unit

2 through the

wire

9.

As shown in fig. 1, fig. 3 and fig. 4, the

curvature adjusting mechanism

3 may have a plurality of specific setting forms, and the

curvature adjusting mechanism

3 may adjust the overall curvature of the

flexible display module

4 to achieve the effect of changing the curvature of the

flexible display module

4, or may adjust different regions of the

flexible display module

4 cooperatively by setting a plurality of

curvature adjusting mechanisms

3 to achieve the effect of changing the overall curvature of the

flexible display module

4. The following description will be made in terms of the case that the number of

curvature adjusting mechanisms

3 is plural, a plurality of

curvature adjusting mechanisms

3 may be disposed between the first side surface of the flexible

protective shell

5 and the display

rear shell

6, the

flexible display module

4 is fixed by the flexible

protective shell

5, the flexible

protective shell

5 is flexible and wraps the

flexible display module

4, the

curvature adjusting mechanisms

3 may be disposed between the flexible

protective shell

5 and the display

rear shell

6, and the adjusting ends of the

curvature adjusting mechanisms

3 directly act on the first side surface of the flexible

protective shell

5, so that the curvatures of the

flexible display module

4 and the flexible

protective shell

5 can be adjusted at the same time, and the situation that the adjusting ends of the

curvature adjusting mechanisms

3 directly act on the

flexible display module

4 to damage the internal components of the

flexible display module

4 and the like can be avoided, the protection of the

flexible display module

4 is facilitated so as to prolong the service life of the flexible display module. Specifically, the

curvature adjusting mechanism

3 may include a

motor

31 and a

cam

32, the

motor

31 is fixedly connected to the display

rear case

6, the

motor

31 is configured to drive the

cam

32 to rotate, and a contour curved surface of the

cam

32 contacts with the first side surface of the flexible

protective case

5. The fixed end of the

motor

31 is fixed with the display

rear shell

6, the driving end of the

motor

31 can be connected with the

cam

32 through the

cam shaft

33 to drive the

cam

32 to rotate, when the curvature of the

flexible display module

4 is adjusted through the

motor

31 and the

cam

32, each

motor

31 can be respectively connected with the

processing unit

2 through the

lead

9, the first command can be a rotation angle command of each

cam

32, the

processing unit

2 sends a rotation angle command for driving the

corresponding cam

32 to each

motor

31, and each

motor

31 drives the

corresponding cam

32 to rotate by a corresponding angle. The

cam

32 is a mechanical member with a curved profile or a curved groove, the most common shape of the

cam

32 is shown in fig. 1, an outer curved surface of the

cam

32 contacts with a first side surface of the

flexible protection shell

5 to play a role of supporting the

flexible protection shell

5, when the

cam

32 contacts with the

flexible protection shell

5 from a near end of the

cam shaft

33, the acting radius of the

cam

32 is smaller, and the curvature of the

flexible display module

4 and the curvature of the

flexible protection shell

5 can be increased; when the

cam

32 rotates to the far end away from the

cam shaft

33 and contacts with the flexible

protective shell

5, the acting radius of the

cam

32 is large, the curvatures of the

flexible display module

4 and the flexible

protective shell

5 can be reduced, and due to the arrangement of the profile curve outside the

cam

32, the curvatures of the

flexible display module

4 and the flexible

protective shell

5 can be adjusted through the rotation of the

cam

32, of course, the shape of the

cam

32 in the embodiment is not limited to the shape, and the purpose of effectively adjusting the curvatures of the

flexible display module

4 is achieved.

Because the curvature of the

flexible display module

4 is reduced when the

cam

32 increases and adjusts the curvature of the

flexible display module

4 and the flexible

protective shell

5, and the supporting force of the

cam

32 against the flexible

protective shell

5 is correspondingly reduced, further, as shown in fig. 1, the

curvature adjusting mechanism

3 may further include a

spring

34, two ends of the

spring

34 are respectively connected with the first side surface of the flexible

protective shell

5 and the display

rear shell

6, and when the curvature of the

flexible display module

4 needs to be increased and the action degree of the

cam

32 is insufficient or the

flexible display module

4 and the flexible

protective shell

5 have stress action and are not easy to deform along with the stress action, a pulling force in the direction of the display

rear shell

6 can be generated on the flexible

protective shell

5 under the elastic force of the

spring

34, so that the flexible

protective shell

5 can be attached to the contour curve of the

cam

32 from the edge to the inner side, so as to realize reliable and accurate adjustment of the curvature of the

flexible display module

4. The

curvature adjusting mechanism

3 can realize effective adjustment of the curvature of the

flexible display module

4 and the flexible

protective shell

5 by adopting the combined action of the

motor

31, the

cam

32 and the

spring

34. For guaranteeing the effect that camber

adjustment mechanism

3 adjusted the camber of

flexible display module

4, need guarantee that the curved surface display after adjusting still forms the even and symmetrical curved surface of level and smooth, in vertical direction, can evenly set up

camber adjustment mechanism

3, and in the horizontal direction, for realizing the bilateral symmetry nature of curved surface, the

camber adjustment mechanism

3 of fixed

axle

7 both sides can the symmetry set up, and the

camber adjustment mechanism

3 of every side can set up according to predetermined angle interval.

In addition, it is also possible to set the

curvature adjusting mechanism

3 to include a plurality of electric telescopic units, the fixed ends of the plurality of electric telescopic units are respectively fixedly connected to the display

rear case

6, and the telescopic ends of the plurality of electric telescopic units are respectively connected to the first side surface of the flexible

protective case

5, and the curvature change of the flexible

protective case

5 is adjusted by the extension and shortening driving of the electric telescopic units.

As shown in fig. 1 and 3, the plurality of

curvature adjustment mechanisms

3 are disposed at predetermined angular intervals around the fixed

shaft

7 in the first direction of the

flexible display module

4. The first direction is a horizontal direction, the fixing

shaft

7 is arranged in the middle of the

flexible display module

4, the fixing

shaft

7 is used as a center, the

flexible display module

4 is a curved surface which is symmetrical left and right, in the first direction, namely, in the same horizontal position, the number and the positions of the

curvature adjusting mechanisms

3 on the two sides of the fixing

shaft

7 are symmetrically arranged, the specific number of the

curvature adjusting mechanisms

3 on each side of the fixing

shaft

7 can be set according to actual conditions, and can be arranged at intervals according to preset angles, for example, the preset angle can be 30 degrees, namely, one

curvature adjusting mechanism

3 is arranged on each of the two sides of the fixing

shaft

7 at intervals of 30 degrees. As shown in fig. 3, the

curvature adjusting mechanisms

3 are uniformly arranged at preset intervals in the second direction of the

flexible display module

4. The second direction is a vertical direction perpendicular to the first direction, and the curvatures of the

curvature adjusting mechanisms

3 on the same vertical line are equal, so that the sizes of the cams of the

curvature adjusting mechanisms

3 on the same vertical line should be equal, the number of the

curvature adjusting mechanisms

3 in the specific same numerical direction can be set according to actual conditions, the distribution of the

curvature adjusting mechanisms

3 in the second direction can be uniform, the vertical distances between the adjacent

curvature adjusting mechanisms

3 are equal, the size of the specific preset interval is determined according to actual conditions, the size of the

flexible display module

4 and the like, and no specific limitation is made here.

For example, the preset curvature of the

rear display housing

6 is R1, the preset curvature of the

flexible display module

4 is R2, the

detection unit

1 detects that the first curvature calculated by the

processing unit

2 is R, as shown in fig. 5, the center of the

flexible display module

4 is O1, the

cams

32 of the

curvature adjusting mechanism

3 on both sides of the fixed

shaft

7 are distributed at an interval of 30 degrees according to the cam center point, in the same horizontal direction, two

cams

32 are respectively arranged on both sides of the fixed

shaft

7, the initial minimum distance direction of the

cam

32 is designed to be parallel to the connecting line between the cam center point and O1, taking the cam with the center of the cam being O3 as an example, as shown in fig. 6, the rotation angle is calculated:

the value of the angle β required to rotate the cam with the center of the circle being O3 can be obtained according to the formula (9), and the value of the angle required to rotate each

cam

32 can be obtained according to the above calculation method.

As shown in fig. 1, specifically, the size of the

cam

32 from the center of the fixed

shaft

7 to both sides in the first direction gradually increases. Since each

motor

31 included in the plurality of

curvature adjusting mechanisms

3 is of the same specification and is fixed on the surface of the display

rear shell

6, and the first side surface of the flexible

protective shell

5 is a curved surface, in the first direction, that is, in the horizontal direction of the

flexible display module

4, the distance from the fixed

shaft

7 to the surfaces of the display

rear shell

6 is gradually increased by taking the fixed

shaft

7 as the center, so that the distance from the center to the

motors

31 on both sides to the first side surface of the flexible

protective shell

5 is gradually increased, in order to enable the profile curve of each

cam

32 to be in contact with the first side surface of the flexible

protective shell

5, the size of the

cam

32 from the center to both sides should be gradually increased, and the specific size is not specifically limited here, and it is sufficient to adjust the curvature of the

flexible display module

4. Further, in the vertical direction, the

cams

32 located on the same vertical line are equal in size.

As shown in fig. 4, further, a limiting

structure

10 may be provided on the first side surface of the flexible

protective shell

5 corresponding to the

cam

32 for limiting the rotation track of the

cam

32. The surface of the cam 32, which is in contact with the flexible protective shell 5, is a curved surface with a profile, the first side surface of the flexible protective shell 5 is also a curved surface, and in the process that the curvature of the flexible protective shell 5 is changed by the rotation driving of the cam 32, the profile curved surface of the cam 32 can generate an acting force on the first side surface of the flexible protective shell 5, especially in the process of adjusting the curvatures of the flexible display module 4 and the flexible protective shell 5 to be smaller, the cam 32 is required to support the first side surface of the flexible protective shell 5, and the two smooth curved surfaces may slip when in contact, which easily causes the rotation trajectory of the cam 32 to deviate, thereby causing damage to the camshaft 33 connected with the cam 32 and affecting the precision of curvature adjustment on the flexible display module 4; through setting up limit structure 10, can restrict the rotation orbit of cam 32 on the first side surface of flexible protective housing 5, avoid cam 32 to rotate the in-process and take place the skew, it is concrete, limit structure 10 can set up to the recess, as shown in fig. 4, the height of recess can be with cam 32's thickness looks adaptation, the length of recess can be set for according to actual conditions, guarantee that the recess can not take place to interfere to cam 32's rotation can.

s1: the

detection unit

1 detects the number and the watching positions of the watchers and feeds the detected first information back to the

processing unit

2;

s2: the

processing unit

2 calculates a first curvature according to the first information and sends a corresponding first command to the

curvature adjusting mechanism

3;

s3: and the

curvature adjusting mechanism

3 adjusts the preset curvature of the

flexible display module

4 to the first curvature according to the first command.

Specifically, the

processing unit

1 calculates a first curvature according to the first information, and sends a corresponding first command to the

curvature adjusting mechanism

3, including: when the first information includes one user number and the position thereof, the

processing unit

1 judges whether the position included in the first information is a preset curvature center position, if not, calculates a first curvature according to the user distance, and sends a corresponding first command to the

curvature adjusting mechanism

3. The method includes the steps that the number of users watching the curved-surface display is divided into one or more situations, when first information detected by a

detection unit

1 is that the number of users watching the curved-surface display is one and position information of the users, the curvature of the curved-surface display does not necessarily need to be adjusted, specifically, a

processing unit

1 is needed to judge whether the position of the user is located at the curvature center position of a preset curvature, and if the position of the user is located at the curvature center position, the curvature of the curved-surface display does not need to be adjusted; if the user is not at the curvature center position of the preset curvature, the

processing unit

2 calculates a first curvature according to the distance from the curved display, the first curvature is the curvature most suitable for the curved display viewed by the user, the

processing unit

2 sends a first command corresponding to the first curvature to the

curvature adjusting mechanism

3, and the

curvature adjusting mechanism

3 can adjust the curvature of the curved display to the first curvature according to the first command.

Specifically, the

processing unit

2 calculates a first curvature according to the first information, and sends a corresponding first command to the

curvature adjusting mechanism

3, and includes: when the first information includes a plurality of users and their positions, the

processing unit

2 calculates a first curvature according to the average distance of the plurality of users, and sends a corresponding first command to the

curvature adjusting mechanism

3. The number of users watching the curved display is divided into one or more than two conditions, and when the first information detected by the

detection unit

1 is the number of users watching the curved display and the position information of each user, the curvature of the curved display needs to be adjusted according to the positions of the users, so that the curved display can meet the requirements of all users for watching pictures as much as possible. The method of determining the first curvature in this case is: the

processing unit

2 calculates average distances from the plurality of users to the curved display according to the positions of the plurality of users, and calculates a first curvature according to the average distances, wherein the first curvature is a curvature which can meet the watching effect of the plurality of users to the maximum extent, the

processing unit

2 sends a first command corresponding to the first curvature to the

curvature adjusting mechanism

3, and the

curvature adjusting mechanism

3 can adjust the curvature of the curved display to the first curvature according to the first command.

1. A curved surface display, comprising:

the detection unit is used for detecting the number and the positions of the users and feeding back the detection result to the processing unit;

the processing unit is used for calculating a first curvature according to the detection result of the detection unit and outputting a corresponding first command;

the input end of the curvature adjusting mechanism is connected with the processing unit and used for receiving the first command and adjusting the preset curvature of the flexible display module;

the display module comprises a flexible protective shell and a display rear shell, wherein the flexible protective shell is arranged outside the flexible display module, and the middle of the first side surface of the flexible protective shell is connected with the display rear shell through a fixing shaft;

the curvature adjusting mechanisms are arranged between the first side surface of the flexible protective shell and the display rear shell, and are arranged at intervals according to a preset angle in the first direction of the flexible display module by taking the fixed shaft as a center;

the curvature adjusting mechanism comprises a motor and a cam, the motor is connected with the display rear shell and used for driving the cam to rotate, and a contour curved surface of the cam is in contact with the first side surface of the flexible protective shell;

the curvature adjusting mechanism further comprises a spring, and two ends of the spring are connected with the first side surface of the flexible protective shell and the display rear shell respectively.

2. The curved display of claim 1,

the detection unit is arranged in the middle of the second side surface of the flexible protection shell, and the detection unit is an infrared sensor.

3. The curved display of claim 1,

the first command is a rotation angle command of each of the cams.

4. The curved display of claim 1,

the curvature adjusting mechanisms are uniformly arranged in the second direction of the flexible display module according to preset intervals.

5. The curved display of claim 1,

the size of the cam from the fixed shaft as the center to both sides in the first direction is gradually increased.

6. The curved display of claim 5,

and a limiting structure is arranged on the first side surface of the flexible protective shell corresponding to the cam and used for limiting the rotating track of the cam.

7. A curvature adjusting method for a curved display, applied to the curved display according to any one of claims 1 to 6, comprising:

the detection unit detects the number and the watching positions of the watchers and feeds the detected first information back to the processing unit;

the processing unit calculates a first curvature according to the first information and sends a corresponding first command to a curvature adjusting mechanism;

and the curvature adjusting mechanism adjusts the preset curvature of the flexible display module to the first curvature according to the first command.

8. The curvature adjustment method of a curved display according to claim 7,

the processing unit calculates a first curvature according to the first information and sends a corresponding first command to the curvature adjustment mechanism, and the processing unit comprises:

when the first information comprises one user number and the position of the user number, the processing unit judges whether the position contained in the first information is a preset curvature center position, if not, calculates a first curvature according to the user distance, and sends a corresponding first command to a curvature adjusting mechanism.

9. The curvature adjustment method of a curved display according to claim 7,

the processing unit calculates a first curvature according to the first information and sends a corresponding first command to the curvature adjustment mechanism, and the processing unit comprises:

when the first information comprises a plurality of users and positions of the users, the processing unit calculates a first curvature according to the average distance of the users and sends a corresponding first command to the curvature adjusting mechanism.