CN113472920B - Foldable display screen and mobile terminal - Google Patents
Foldable display screen and mobile terminal Download PDFInfo
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- CN113472920B CN113472920B CN202010244199.8A CN202010244199A CN113472920B CN 113472920 B CN113472920 B CN 113472920B CN 202010244199 A CN202010244199 A CN 202010244199A CN 113472920 B CN113472920 B CN 113472920B
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- hinge mechanism
- display panel
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- anchor
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
- H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
- H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
- H04M1/0216—Foldable in one direction, i.e. using a one degree of freedom hinge
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
- G06F1/1641—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being formed by a plurality of foldable display components
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
- G06F1/1652—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being flexible, e.g. mimicking a sheet of paper, or rollable
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
- H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Abstract
The invention relates to the technical field of display equipment, and provides a foldable display screen and a mobile terminal. Collapsible display screen includes display panel and collapsible backplate structure, and display panel is provided with a plurality of folding regions, and collapsible backplate structure includes: the first back plate is arranged on the back of the display panel and provided with a plurality of folding channels, and the folding channels respectively correspond to the folding areas; the displacement assembly and the hinge mechanism are arranged on the back face of the first back plate, the displacement assembly drives the hinge mechanism to alternately move to a folding channel from the folding channels along the moving direction perpendicular to the extending direction of the folding channels, and the displacement assembly shields the rest folding channels so that the display panel can be folded in the folding area corresponding to the hinge mechanism. The display panel folding device can realize the alternate folding of a plurality of folding areas of the display panel, and avoid the damage of the display panel caused by the long-time folding of a single folding area.
Description
Technical Field
The invention relates to the technical field of display equipment, in particular to a foldable display screen and a mobile terminal.
Background
When the flexible screen is folded, the module structure is stressed and deformed. When a certain region of the flexible screen is in a deformation state for a long time, the module structure will creep, if the creep is serious, the deformation cannot be recovered, and the folding region of the flexible screen is permanently damaged.
The flexible screen is only provided with a single folding area, the module structure cannot be restored to deform due to long stress time, and a good solution scheme is not provided in the prior art.
It is to be noted that the information applied in the above background section is only for enhancing the understanding of the background of the present invention, and thus may include information that does not constitute prior art known to those of ordinary skill in the art.
Disclosure of Invention
In view of this, the present invention provides a foldable display screen and a mobile terminal, which can implement alternate folding of multiple folding areas of a display panel, and avoid damage to the display panel due to long-time folding of a single folding area.
One aspect of the present invention provides a foldable display screen, including a display panel and a foldable back panel structure, the display panel being provided with a plurality of folding areas, the foldable back panel structure including: the first back plate is arranged on the back of the display panel and provided with a plurality of folding channels, and the folding channels respectively correspond to the folding areas; the displacement assembly drives the hinge mechanism to alternately move to one folding channel from the folding channels along a moving direction perpendicular to the extending direction of the folding channels, and shields the rest folding channels for the display panel to be folded in the folding area corresponding to the hinge mechanism.
In some embodiments, when the display panel is folded and unfolded, the displacement component drives the hinge mechanism to move from the folding channel corresponding to the current folding area of the display panel to the folding channel corresponding to an idle folding area.
In some embodiments, the displacement assemblies include two sets fixed to two ends of the first back plate along the moving direction, and the hinge mechanism is connected between the two sets of displacement assemblies.
In some embodiments, each set of the displacement assemblies includes a driving element for driving the hinge mechanism to move and a limiting element for limiting the hinge mechanism, at least one of the limiting elements limits the hinge mechanism when being opened, and two of the limiting elements are closed to allow the hinge mechanism to move.
In some embodiments, the actuator comprises a spring coupled to an end of the first back plate and a moving slide coupled to the hinge mechanism; the locating part includes scalable anchor and controller, connect in the spring with remove between the slider, the controller control scalable anchor stretches out with spacing the hinge mechanism, the controller control scalable anchor retract for the hinge mechanism removes.
In some embodiments, the controller comprises: a first force sensitive switch connected between said spring and said retractable anchor, said first force sensitive switch controlling extension of said retractable anchor under tension in said spring; and a second force sensitive switch connected between the retractable anchor and the movable slider, the second force sensitive switch controlling the retraction of the retractable anchor under the pressure of the movable slider.
In some embodiments, the controller comprises: the optical switch is connected between the spring and the telescopic anchor piece, a limiting groove matched with the telescopic anchor piece is formed in the first back plate, and the optical switch controls the telescopic anchor piece to extend out when moving to the limiting groove; and the force sensitive switch is connected between the telescopic anchor piece and the movable sliding block and controls the telescopic anchor piece to retract under the pressure action of the movable sliding block.
In some embodiments, the retractable anchor member is retractable perpendicular to the first back plate, and a limit groove for the retractable anchor member to extend into is formed in the first back plate.
In some embodiments, the foldable back plate structure further includes a second back plate disposed at the back of the displacement assembly and the hinge mechanism, and a groove corresponding to the limiting groove is disposed in the second back plate.
Another aspect of the present invention provides a mobile terminal comprising a foldable display screen according to any of the above embodiments.
Compared with the prior art, the invention has the beneficial effects that at least:
the display panel is provided with a plurality of folding areas, and the first back plate is provided with a plurality of folding channels corresponding to the folding areas, so that each folding area can be folded; the displacement assembly drives the hinge mechanism to alternately move in the plurality of folding channels, so that a plurality of folding areas of the display panel are alternately folded; thus, the display panel can prevent damage caused by long-time folding of a single folding area.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 shows a schematic structural diagram of a foldable display screen in an embodiment of the invention;
FIG. 2 shows a folded schematic view of a foldable display screen in an embodiment of the invention;
FIG. 3 is a schematic diagram of a foldable display screen in accordance with further embodiments of the present invention;
FIG. 4 shows a schematic cross-sectional view of a retractable anchor member extending into a retaining groove in an embodiment of the present invention;
fig. 5 shows a schematic cross-sectional view of a mobile slide in a chute according to an embodiment of the invention.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their repetitive description will be omitted.
Fig. 1 illustrates the structure of a foldable display screen in an embodiment, and referring to fig. 1, in some embodiments, the foldable display screen includes a display panel 1 and a foldable back panel structure, the display panel 1 is provided with a plurality of folding areas, for example, two folding areas 11 are shown in fig. 1. In other embodiments, the display panel 1 may be provided with three, four or more folding areas as needed. The foldable back plate structure comprises a first back plate 2, which is arranged on the back surface of the display panel 1, namely on the non-display-picture surface of the display panel 1. The first back plate 2 is provided with a plurality of folding passages 21, and the plurality of folding passages 21 respectively correspond to the plurality of folding areas 11. The corresponding relationship between the folding channel 21 and the folding area 11 is illustrated by the dotted line drawn on the display panel 1 in fig. 1, and the folding channel 21 provides a folding space for the display panel 1 to fold. The plurality of folding channels 21 correspond to the plurality of folding regions 11 one to one, so that the display panel 1 can be folded at each folding region 11.
Further, the foldable backboard structure further comprises a displacement component 3 and a hinge mechanism 4, which are arranged on the back surface of the first backboard 2, namely the surface of the first backboard 2 departing from the display panel 1. The displacement component 3 drives the hinge mechanism 4 to alternately move from a plurality of folding channels 21 to one folding channel 21 along a moving direction X perpendicular to the extending direction of the folding channels 21, and the displacement component 3 shields the rest folding channels 21 for the display panel 1 to fold in the folding area 11 corresponding to the hinge mechanism 4. Wherein, the extending direction (not specifically labeled in the figures) of the folding channel 21 is the same as the folding direction of the display panel 1, and if the display panel 1 is folded along the length direction thereof, the extending direction of the folding channel 21 is the length direction of the display panel 1; if the display panel 1 is folded in its width direction, the extending direction of the folding channel 21 is the width direction of the display panel 1. The moving direction X of the hinge mechanism 4 is perpendicular to the extending direction of the folding passages 21 to realize the movement between the plurality of folding passages 21. The displacement component 3 drives the hinge mechanism 4 to alternately move among the folding channels 21, so that the folding regions 11 of the display panel 1 can be alternately folded, and damage caused by long-time folding of a single folding region is avoided. When the hinge mechanism 4 moves to a folding channel 21, the displacement component 3 at least partially covers the rest of the folding channel 21 to facilitate the folding of the display panel 1 in the folding area 11 corresponding to the hinge mechanism 4 and support the unfolded part of the display panel 1. Of course, the display panel 1 itself has sufficient support to remain flat when unfolded.
In some embodiments, when the display panel 1 is folded and unfolded, the displacement component 3 drives the hinge mechanism 4 to move from the folding channel 21 corresponding to the current folding area of the display panel 1 to the folding channel 21 corresponding to an idle folding area. As shown in fig. 1, the hinge mechanism 4 is currently located at the folding tunnel 21 on the left side, and the display panel 1 is currently foldable at the folding area 11 on the left side. When the display panel 1 is folded and unfolded flat in the left folding area 11, the displacement assembly 3 drives the hinge mechanism 4 to move from the left folding channel 21 to the free right folding channel 21, so that the next folding of the display panel 1 occurs in the right folding area 11, and the two folding areas 11 are folded alternately. In other embodiments, when the display panel 1 is provided with more than three folding regions, the displacement assembly 3 may drive the hinge mechanism 4 to sequentially move along the moving direction X to the folding channel corresponding to each folding region, so that the plurality of folding regions can be sequentially folded. Alternatively, the displacement assembly 3 may drive the hinge mechanism 4 to move to the folding passage corresponding to the folding area with the longest folding interval time each time according to the folding interval time of each folding area. Alternatively, the displacement component 3 may be set by a user, for example, the user may select a folding area on the touch surface of the display panel 1, and the displacement component 3 drives the hinge mechanism 4 to move to the folding channel corresponding to the folding area selected by the user.
Fig. 2 illustrates a structure in which the foldable display screen is in a folded state, and as shown in fig. 2, the foldable display screen is folded in the current folding region 11a by the multi-link hinge unit of the hinge mechanism 4 being rotated in accordance with the folding action of the current folding region 11a of the display panel 1. In the state where the current folding area 11a is folded, the free folding area 11b is blocked, which helps the unfolded part of the display panel 1 to keep flat and restore the deformation caused by the previous folding. The exposed area of the display panel 1 can be used for displaying a picture, or displaying time in a standby state, or the like.
In some embodiments, the two sets of displacement assemblies 3 are respectively fixed to two end portions of the first back plate 2 along the moving direction X, and the hinge mechanism 4 is connected between the two sets of displacement assemblies 3 to facilitate and flexibly drive the hinge mechanism 4 to move along the moving direction X. As shown in fig. 1, the displacement assembly 3 includes a first group of displacement assemblies 3a fixed to a first end portion 2a on the left side of the first back plate 2 and a second group of displacement assemblies 3b fixed to a second end portion 2b on the right side of the first back plate 2, and a hinge mechanism 4 is connected between free ends of the first group of displacement assemblies 3a and free ends of the second group of displacement assemblies 3 b.
Further, every group displacement subassembly 3 is including being used for driving the driving piece that 4 hinge mechanisms moved and the locating part that is used for 4 hinge mechanisms of spacing, and spacing 4 hinge mechanisms when at least a locating part is opened supply 4 hinge mechanisms to remove when two locating parts are closed. Fig. 3 illustrates the structure of the foldable display screen in some embodiments, and as shown in fig. 3, the displacement assembly 3 includes a first group of displacement assemblies 3a and a second group of displacement assemblies 3 b. The first group of displacement assemblies 3a comprises a first driving member 31 for driving the hinge mechanism 4 to move and a first limiting member 32 for limiting the hinge mechanism 4, and the second group of displacement assemblies 3b comprises a second driving member 33 for driving the hinge mechanism 4 to move and a second limiting member 34 for limiting the hinge mechanism 4. When the first limiting member 32 and/or the second limiting member 34 are/is opened, the hinge mechanism 4 is limited in the current folding channel 21a for the current folding region 11a to fold; when the first limiting member 32 and the second limiting member 34 are closed, the hinge mechanism 4 can move along the moving direction X, and switch to the idle folding passage 21b for folding the idle folding region 11 b. Wherein, the current folding area 11a and the idle folding area 11b are both folding areas set on the display panel 1, and similarly, the current folding channel 21a and the idle folding channel 21b are both folding channels set in the first backplane 2.
The driving member may be provided as needed as long as it can perform a function of driving the hinge mechanism 4 to move. The stopper may be provided as needed as long as it can function to restrict the movement of the hinge mechanism 4. In some embodiments, the actuator comprises a spring connected to the end of the first back plate 2 and a moving slider connected to the hinge mechanism 4; the limiting part comprises a telescopic anchor part and a controller, the telescopic anchor part is connected between the spring and the movable sliding block, the controller controls the telescopic anchor part to extend out to limit the hinge mechanism 4, and the controller controls the telescopic anchor part to retract to enable the hinge mechanism 4 to move. Referring to fig. 3, in the first set of displacement assemblies 3a, the first driving element 31 comprises a first spring 311 connected to the first end 2a of the first back plate 2 and a first moving slider 312 connected to the hinge mechanism 4; the first limiting member 32 includes a first retractable anchor 321 and a first controller 322, and is connected between the first spring 311 and the first moving slider 312, the first controller 322 controls the first retractable anchor 321 to extend to limit the hinge mechanism 4, and the first controller 322 also controls the first retractable anchor 321 to retract for the hinge mechanism 4 to move. In the second group of displacement assemblies 3b, the second driving element 33 comprises a second spring 331 connected with the second end 2b of the first back plate 2 and a second moving slide 332 connected with the hinge mechanism 4; the second position-limiting member 34 includes a second retractable anchor 341 and a second controller 342, and is connected between the second spring 331 and the second moving block 332, the second controller 342 controls the second retractable anchor 341 to extend to limit the hinge mechanism 4, and the second controller 342 also controls the second retractable anchor 341 to retract to allow the hinge mechanism 4 to move.
In the state shown in fig. 3, the hinge mechanism 4 is retained by the extended second telescopic anchor 341 in the current folding passage 21a for the display panel 1 to be folded in the current folding region 11 a. When the display panel is folded and flat in the current folding area 11a, the second controller 342 will control the second retractable anchor 341 to retract, and the first retractable anchor 321 is also in a retracted state, so that the first driving element 31 and the second driving element 33 drive the hinge mechanism 4 to move toward the idle folding channel 21 b. When the hinge mechanism 4 moves to the empty folding passage 21b, the first controller 322 controls the first retractable anchor 321 to extend out, for example, into the first limiting groove 3211 of the first back plate 2, so as to limit the hinge mechanism 4 in the empty folding passage 21b for the display panel 1 to fold in the empty folding area 11 b.
Further, the controller may effect control of the retractable anchor via a switch element, which may be a force sensitive switch, an optical switch, or the like. For example, in some embodiments, the controller comprises: the first force sensitive switch is connected between the spring and the telescopic anchor piece, and the first force sensitive switch controls the telescopic anchor piece to extend out under the tension of the spring; and a second force sensitive switch connected between the retractable anchor and the movable slider, the second force sensitive switch controlling the retraction of the retractable anchor under the pressure of the movable slider. For another example, in some embodiments, the controller comprises: the optical switch is connected between the spring and the telescopic anchor piece, a limiting groove matched with the telescopic anchor piece is formed in the first back plate, and the optical switch controls the telescopic anchor piece to extend out when moving to the limiting groove; and a force sensitive switch connected between the retractable anchor and the movable slider, the force sensitive switch controlling retraction of the retractable anchor under pressure from the movable slider.
Referring to fig. 3, the controller is illustrated as including two force sensitive switches. The first controller 322 includes: a first force sensitive switch 3221 connected between the first spring 311 and the first retractable anchor 321, the first force sensitive switch 3221 controlling the first retractable anchor 321 to extend under the tension of the first spring 311; and a second force sensitive switch 3222 connected between the first telescopic anchor 321 and the first moving slider 312, the second force sensitive switch 3222 controlling the first telescopic anchor 321 to retract under the pressure of the first moving slider 312. The second controller 342 includes: a third force sensitive switch 3421 connected between the second spring 331 and the second retractable anchor 341, the third force sensitive switch 3421 controlling the extension of the second retractable anchor 341 under the tension of the second spring 331; and a fourth force sensitive switch 3422 connected between the second retractable anchor 341 and the second moving block 332, the fourth force sensitive switch 3422 controlling the retraction of the second retractable anchor 341 under the pressure of the second moving block 332. In the current state, the hinge mechanism 4 is located in the current folding region 11a, the second spring 331 is stretched, the third force-sensitive switch 3421 is opened by the pulling force of the second spring 331, and the second retractable anchor 341 is controlled to extend to the second limiting groove (not specifically shown in the figure) of the first back plate 2, so as to limit the hinge mechanism 4. When the current folding area 11a is folded and unfolded, the fourth force-sensitive switch 3422 is activated by the pressure of the second moving slider 332, so as to control the second retractable anchor 341 to retract, and the hinge mechanism 4 moves toward the idle folding area 11 b. When the hinge mechanism 4 moves to the idle folding area 11b, the first spring 311 stretches, the first force-sensitive switch 3221 is opened by the tension of the first spring 311, and the first retractable anchor 321 is controlled to extend to limit the hinge mechanism 4. When the free folding area 11b is folded and unfolded, the second force sensitive switch 3222 is opened by the pressure of the first moving slider 312, so as to control the first telescopic anchor 321 to retract, and the hinge mechanism 4 moves toward the current folding area 11 a. The above circulation realizes the alternate replacement of the folding area controlled by the force sensitive switch.
The first force-sensitive switch 3221 and the third force-sensitive switch 3421 may be replaced by optical switches, and the optical switches control the extension of the retractable anchors through the difference of the optical transmission paths between the position of the limiting grooves and the non-grooved position of the first backboard 2. Specifically, the first controller 322 includes: a first light switch (instead of the first force sensitive switch 3221 described above) connected between the first spring 311 and the first retractable anchor 321; and a second force sensitive switch 3222 connected between the first telescopic anchor 321 and the first moving slider 312. The second controller 342 includes: a second optical switch (instead of the third force sensitive switch 3421 described above) connected between the second spring 331 and the second retractable anchor 341; and a fourth force sensitive switch 3422 connected between the second retractable anchor 341 and the second movable slider 332. In the current state, the hinge mechanism 4 is located in the current folding region 11a, and the second retractable anchor 341 extends to the second limit groove of the first backboard 2 to limit the hinge mechanism 4. When the current folding area 11a is folded and unfolded, the fourth force-sensitive switch 3422 is activated by the pressure of the second moving slider 332, so as to control the second retractable anchor 341 to retract, and the hinge mechanism 4 moves toward the idle folding area 11 b. When the hinge mechanism 4 moves to the idle folding region 11b, the first optical switch moves to the first position-limiting groove 3211 of the first backboard 2, and the optical path transmission difference enables the first optical switch to be turned on, so as to control the first telescopic anchor 321 to extend out to limit the hinge mechanism 4. When the idle folding area 11b is folded and unfolded, the second force-sensitive switch 3222 is turned on by the pressure of the first moving slider 312, so as to control the first retractable anchor 321 to retract, and the hinge mechanism 4 moves toward the current folding area 11 a. When the hinge mechanism 4 moves to the current folding region 11a, the second optical switch moves to the second limit groove (located at the position of the second retractable anchor 341 in fig. 3) of the first back plate 2, and the second optical switch is turned on by the optical path transmission difference to control the second retractable anchor 341 to extend to the second limit groove, so as to limit the hinge mechanism 4. The alternate replacement of the folding area is controlled by the force sensitive switch and the optical switch in such a circulating way.
In the above embodiment, the retractable anchor member is retractable perpendicular to the first backboard 2, and the limiting groove provided in the first backboard 2 is used for the retractable anchor member to extend into and fix. In other embodiments, the retractable anchor may also extend obliquely into the retaining groove formed in the first back plate 2. The shape of the retractable anchor may be arrowhead, hook, curved, etc. In some embodiments, the foldable back plate structure further comprises a second back plate 5 disposed at the back of the displacement assembly 3 and the hinge mechanism 4. The second back plate 5 has a groove corresponding to the limiting groove of the first back plate 2, such as the first groove 51 corresponding to the first limiting groove 3211, and a second groove corresponding to the second limiting groove is located at the position of the second retractable anchor 341 in fig. 3, which is not specifically labeled in the figure. Fig. 4 shows a schematic cross-section of the embodiment in which the retractable anchors extend into the retaining grooves, for example, the first retractable anchor 321 extends into the first retaining groove 3211 of the first back plate 2 and the first groove 51 of the second back plate 5. Corresponding limiting grooves and grooves are formed in the first back plate 2 and the second back plate 5, so that the telescopic anchor piece can stretch into and be fixed, and the limiting hinge mechanism 4 can be realized. Corresponding channels can be arranged in the first back plate 2 and the second back plate 5 for the moving slide block to move. For example, fig. 5 shows the first movable slider 312 positioned in the first channel 3121 of the first back plate 2 and the second channel 52 of the second back plate 5. The second back plate 5 provides support for the display panel 1, the first back plate 2, the displacement assembly 3 and the hinge mechanism 4, and the second back plate 5 is flexible and can be folded with the display panel 1.
An embodiment of the present invention further provides a mobile terminal, where the mobile terminal includes the foldable display screen described in any of the above embodiments. The mobile terminal is provided with a plurality of folding areas through a display panel, and the first back panel is provided with a plurality of folding channels corresponding to the folding areas, so that each folding area can be folded; the displacement assembly drives the hinge mechanism to alternately move in the folding channels, so that the display panel can be folded in a plurality of folding areas. When switching from one folding area to another folding area, the portion of the display panel that was previously folded may gradually return to deformation. Through a plurality of folding regional folding in turn, reduce single folding regional atress time, increase the exhibition flat recovery time to do benefit to display panel's deformation and resume, avoid causing the damage because of single folding regional folding for a long time.
The foregoing is a further detailed description of the invention in connection with specific preferred embodiments and it is not intended to limit the invention to the specific embodiments described. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (9)
1. A foldable display screen, comprising a display panel and a foldable back panel structure, wherein the display panel is provided with a plurality of folding areas, the foldable back panel structure comprises:
the first back plate is arranged on and attached to the back surface of the display panel, and is provided with a plurality of folding channels which respectively correspond to the folding areas;
the displacement assembly drives the hinge mechanism to alternately move to one folding channel from a plurality of folding channels along a moving direction perpendicular to the extending direction of the folding channels, and shields the rest folding channels for the display panel to be folded in a folding area corresponding to the hinge mechanism;
when the display panel is folded and unfolded, the displacement component drives the hinge mechanism to move from a folding channel corresponding to the current folding area of the display panel to a folding channel corresponding to an idle folding area, and the idle folding area is selected from the following steps:
any folding area of the display panel except the current folding area;
a folding area with the longest folding interval time of the display panel; or
And the user selects a folding area on the touch control surface of the display panel.
2. The foldable display of claim 1, wherein the displacement assemblies comprise two sets fixed to two ends of the first back plate along the moving direction, respectively, and the hinge mechanism is connected between the two sets of displacement assemblies.
3. The foldable display screen of claim 2, wherein each set of displacement assemblies comprises a driving member for driving the hinge mechanism to move and a limiting member for limiting the hinge mechanism, at least one of the limiting members limiting the hinge mechanism when open, and both of the limiting members providing movement of the hinge mechanism when closed.
4. The foldable display of claim 3, wherein the actuator comprises a spring coupled to an end of the first back plate and a moving slide coupled to the hinge mechanism;
the locating part includes scalable anchor and controller, connect in the spring with remove between the slider, controller control scalable anchor stretches out with spacingly the hinge mechanism, controller control scalable anchor retracts in order to supply the hinge mechanism removes.
5. The foldable display of claim 4, wherein the controller comprises:
a first force sensitive switch connected between said spring and said retractable anchor, said first force sensitive switch controlling extension of said retractable anchor under tension in said spring; and
a second force sensitive switch connected between the retractable anchor and the moving slide, the second force sensitive switch controlling retraction of the retractable anchor under pressure from the moving slide.
6. The foldable display of claim 4, wherein the controller comprises:
the optical switch is connected between the spring and the telescopic anchor piece, a limit groove matched with the telescopic anchor piece is formed in the first back plate, and the optical switch controls the telescopic anchor piece to extend out when moving to the limit groove; and
and the force sensitive switch is connected between the telescopic anchor piece and the movable sliding block and controls the telescopic anchor piece to retract under the pressure action of the movable sliding block.
7. The foldable display screen of claim 4, wherein the retractable anchor member extends and retracts perpendicular to the first back plate, and a limiting groove is formed in the first back plate for the retractable anchor member to extend and fix.
8. The foldable display screen of claim 7, wherein the foldable back plate structure further comprises a second back plate disposed at the back of the displacement assembly and the hinge mechanism, and a groove corresponding to the limiting groove is disposed in the second back plate.
9. A mobile terminal characterized in that it comprises a foldable display according to any of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010244199.8A CN113472920B (en) | 2020-03-31 | 2020-03-31 | Foldable display screen and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010244199.8A CN113472920B (en) | 2020-03-31 | 2020-03-31 | Foldable display screen and mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113472920A CN113472920A (en) | 2021-10-01 |
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Address after: 1568 Jiugong Road, Jinshan Industrial Zone, Jinshan District, Shanghai, 201506 Applicant after: Shanghai Hehui optoelectronic Co.,Ltd. Address before: 1568 Jiugong Road, Jinshan District, Shanghai, 201506 Applicant before: EVERDISPLAY OPTRONICS (SHANGHAI) Ltd. |
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