CN110211504A - Flexible foldable display device - Google Patents
Flexible foldable display device Download PDFInfo
- Publication number
- CN110211504A CN110211504A CN201910579245.7A CN201910579245A CN110211504A CN 110211504 A CN110211504 A CN 110211504A CN 201910579245 A CN201910579245 A CN 201910579245A CN 110211504 A CN110211504 A CN 110211504A
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- China
- Prior art keywords
- support bar
- sub
- flexible
- viewing area
- display device
- Prior art date
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Classifications
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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
Abstract
The embodiment of the invention provides a kind of flexible foldable display devices, comprising: flexible display screen, the flexible display screen include multiple sub- viewing areas, wherein includes a folding shaft between the sub- viewing area of two of arbitrary neighborhood；First support bar, first support bar are located at the non-light-emitting surface of the flexible display screen, and are at least correspondingly arranged with the folding shaft；Be provided with phase change medium in first support bar, first support bar for realizing the flexible foldable display device folded state change.The technical program can solve the problem of flexible display screen can not fix support after being unfolded in the prior art.
Description
[technical field]
The present invention relates to flexible display screen technical field more particularly to a kind of flexible foldable display devices.
[background technique]
At present flexible screen in various terminals using more and more common, in the flexible screen that wrist-watch, mobile phone, plate are three-in-one
In curtain application, three is converted in three kinds of display patterns by the size of difference flexible screen expansion, existing smartwatch face
Face the problem of can not fixing support after flexible screen is unfolded, causing can not when being switched to handset mode or plate mode from wrist-watch schema
Realize convenient reading screen, the movement such as touch screen, and existing smartwatch All-in-One product is less on the market covers plate
Mode.
[summary of the invention]
In view of this, the embodiment of the invention provides a kind of flexible foldable display devices, to solve in the prior art
The problem of support can not be fixed after flexible display screen expansion.
On the one hand, the embodiment of the invention provides a kind of flexible foldable display devices, comprising: flexible display screen, it is described
Flexible display screen includes multiple sub- viewing areas, wherein includes a folding between the sub- viewing area of two of arbitrary neighborhood
Axis；First support bar, first support bar are located at the non-light-emitting surface of the flexible display screen, and at least with the folding shaft pair
It should be arranged；Phase change medium is provided in first support bar, first support bar is aobvious for realizing the flexible foldable
The change of showing device folded state.
Optionally, flexible foldable display device further include: heating control circuit is provided in first support bar and leads
Electric heating element, the conductive heater component are electrically connected with the heating control circuit.
Optionally, flexible foldable display device further include: display control circuit, the display control circuit is for controlling
The multiple sub- viewing area shows the change of state.
Optionally, flexible foldable display device further include: multiple second support bars, second support bar are located at described
The non-light-emitting surface of flexible display screen, and extend along the direction perpendicular to the folding shaft axial direction；The different sub- viewing areas
Corresponding second support bar is mutually indepedent.
Optionally, second support bar be solid-state structure, can one of phase change structure.
Optionally, first support bar includes two the first support bars of the first kind, and described two first kind first support
Item respectively corresponds the flexible display screen and is arranged along perpendicular to two edges on the direction of the folding shaft axial direction.
Optionally, the phase change medium includes one or more in low-melting alloy or high-molecular organic material.
Optionally, first support bar is cylindrical body, is provided with the phase change medium in the cylindrical body, wherein institute
The material for stating cylindrical body includes at least one of rubber, polyvinyl chloride.
Optionally, first support bar includes thermal insulation layer, and the thermal insulation layer coats the heating element and the phase transformation
Medium.
Optionally, first support bar further includes thermally conductive insulating layer, and the thermally conductive insulating layer is located at the heating element
Between the phase change medium.
Optionally, flexible foldable display device includes: bending completely folded state, and first support bar passes through described
The transformation of phase change medium phase is kept constant bending state, and only one described sub- viewing area is in display open state；
Open and flat completely folded state, first support bar are kept constant one direction by the transformation of the phase change medium phase and extend
State, and only one described sub- viewing area is in display open state；Open and flat fully unfolded position, first support bar are logical
The transformation for crossing the phase change medium phase is kept constant one direction extension state, and all sub- viewing areas are in flat
Face shows open state.
Optionally, flexible foldable display device further include: open and flat semi-collapsed condition, first support bar pass through described
The transformation of phase change medium phase is kept constant one direction extension state, and at least two adjacent sub- viewing areas are in
Open state.
Compared with prior art, the technical program at least has the following beneficial effects:
The flexible foldable display device provided according to embodiments of the present invention is shown in arbitrary neighborhood of flexible display screen
It is respectively provided with a folding shaft between area, and is additionally provided with branch on the non-light-emitting surface of flexible display screen position corresponding with folding shaft
Stay (i.e. the first support bar) is provided with phase change medium in the first support bar.When the phase of phase change medium is solid-state, first
Stay can play the role of supporting flexible display screen, and when the phase of phase change medium is changed into liquid, flexible display screen can
To be bent at folding shaft.Therefore, not only to have met flexible display screen using this first support bar bent, but also can be in Flexible Displays
It plays a supporting role when screen is in unfolded state to it.
[Detailed description of the invention]
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this field
For those of ordinary skill, without creative efforts, it can also be obtained according to these attached drawings other attached drawings.
Figure 1A is a kind of structural schematic diagram of flexible foldable display device provided in an embodiment of the present invention；
Figure 1B is cross-sectional view of the flexible foldable display device shown in figure 1A at A-A；
Fig. 2 is the structural schematic diagram of another flexible foldable display device provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of another flexible foldable display device provided in an embodiment of the present invention；
Fig. 4 A is the structure that flexible foldable display device provided in an embodiment of the present invention is in open and flat fully unfolded position
Schematic diagram；
Fig. 4 B is cross-sectional view of the flexible foldable display device at A-A shown in Fig. 4 A；
Fig. 5 A is that flexible foldable display device provided in an embodiment of the present invention is in the structure of open and flat semi-collapsed condition and shows
It is intended to；
Fig. 5 B is cross-sectional view of the flexible foldable display device at A-A shown in Fig. 5 A；
Fig. 6 A is the structure that flexible foldable display device provided in an embodiment of the present invention is in open and flat completely folded state
Schematic diagram；
Fig. 6 B is cross-sectional view of the flexible foldable display device at A-A shown in Fig. 6 A；
Fig. 7 is that flexible foldable display device provided in an embodiment of the present invention is shown in the structure of bending completely folded state
It is intended to；
Fig. 8 A is the structural schematic diagram of another flexible foldable display device provided in an embodiment of the present invention；
Fig. 8 B is cross-sectional view of the flexible foldable display device at A-A shown in Fig. 8 A；
Fig. 9 is that a kind of cross section structure of the first support bar in flexible foldable display device provided in an embodiment of the present invention shows
It is intended to；
[specific embodiment]
For a better understanding of the technical solution of the present invention, being retouched in detail to the embodiment of the present invention with reference to the accompanying drawing
It states.
It will be appreciated that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
Its embodiment, shall fall within the protection scope of the present invention.
Figure 1A is a kind of structural schematic diagram of flexible foldable display device provided in an embodiment of the present invention.Figure 1B is Figure 1A
Shown in cross-sectional view of the flexible foldable display device at A-A.
With reference to Figure 1A, flexible foldable display device includes flexible display screen 11, and flexible display screen 11 includes that multiple sons are aobvious
Show area.For example, flexible display screen 11 as shown in Figure 1A includes three sub- viewing areas, respectively sub- viewing area 11a, sub- viewing area
11b and sub- viewing area 11c.It wherein, include a folding shaft between two sub- viewing areas of arbitrary neighborhood.For example, as schemed
It include folding shaft 12a, adjacent sub- viewing area between the adjacent sub- viewing area 11a and the sub- viewing area 11b shown in 1A
It include folding shaft 12b between 11b and sub- viewing area 11c.Wherein, the folding shaft 12a and folding shaft 12b is marked in Figure 1A
Dotted portion pointed by 12a and label 12b.The misty filling region of flexible display screen 11 represents the boundary of each sub- viewing area
Position.
The flexible foldable display device further includes dial plate 14, and the dial plate 14 is set to the sub- viewing area 11b's
Light-emitting surface.Several keys 141 are provided on the dial plate 14, user can control described soft by the operation to different key
Property foldable display device in control circuit (for example, heating control circuit and display control circuit) starting or close so that
Phase change medium in first support bar carries out the change of the display state of solid-liquid conversion and the sub- viewing area of control.On how to control
It makes the phase change medium in first support bar and carries out the implementation of solid-liquid conversion and the display state of the sub- viewing area of control
The implementation of change will be described in detail in embodiments below.
The flexible display apparatus further includes multiple first support bars, and first support bar is located at the flexible display screen
Non- light-emitting surface (i.e. away from the side of the light-emitting surface of flexible display screen), and be at least correspondingly arranged with the folding shaft.For example,
In conjunction with reference Figure 1A and Figure 1B, the non-light-emitting surface of the flexible display screen 11 is provided with the support of the first support bar 13a and first
13b.Wherein, the first support bar 13a is arranged in position corresponding with the folding shaft 12a (along the folding shaft 12a's
Axial direction setting), the second support bar 13b is arranged in position corresponding with the folding shaft 12b (along the folding shaft
The axial direction of 12b is arranged).The first support bar 13a and the first support bar 13b can be solid by adhesive tape or glue respectively
It is scheduled on the position of the non-light-emitting surface of flexible display screen 11 and the axial direction along the folding shaft 12a and folding shaft 12b.
Phase change medium is provided in the first support bar 13a and the first support bar 13b.So-called phase transformation refers to substance
It is changed into the process of another phase from a kind of phase, usual substance has solid-state, liquid and gaseous state.Optionally, in this implementation
In example, phase change medium is converted between solid-state and liquid.
Optionally, the phase change medium includes one or more in low-melting alloy or high-molecular organic material.Wherein, institute
It states low-melting alloy and refers to that fusing point in 300 DEG C of metals and its alloy below, generally includes the low-melting-point metals such as Bi, Sn, Pb, In
One of or it is a variety of.The high-molecular organic material is primarily referred to as high-molecular compound, refers generally to relative molecular mass and is up to
It is thousands of to arrive millions of compounds, such as the compound formed with elements such as C, H, F and Cl.
Identical phase change medium can be used in the first support bar 13a and the first support bar 13b, it can also
To use different phase change mediums.Optionally, the first support bar 13a and the first support bar 13b can be cylindrical body
Structure, phase change medium are set to inside cylindrical body, and the material of cylindrical body can be at least one of rubber, polyvinyl chloride.
When the phase of the phase change medium is solid-state, the first support bar 13a and the first support bar 13b can be with
Play the role of the support flexible display screen 11, and when the phase of the phase change medium is changed into liquid, it is described flexible aobvious
Display screen 11 can be bent at the folding shaft 12a and folding shaft 12b.Therefore, both met using first support bar described
Flexible display screen 11 is bent, and can play a supporting role when the flexible display screen 11 is in unfolded state to it.This Shen
Please embodiment pass through phase change medium for being arranged in first support bar (including the first support bar 13a and the first support bar 13b)
Transformation between two kinds of phases of solid-state and liquid fills so that first support bar shows for realizing the flexible foldable
Set the change of folded state.
Fig. 2 is the structural schematic diagram of another flexible foldable display device provided in an embodiment of the present invention.
With reference to Fig. 2, flexible display apparatus includes flexible display screen 21, and the flexible display screen 21 includes multiple sub- displays
Area.For example, flexible display screen 21 as shown in Figure 2 includes three sub- viewing areas, respectively sub- viewing area 21a, sub- viewing area 21b
And sub- viewing area 21c.It wherein, include a folding shaft between two sub- viewing areas of arbitrary neighborhood.For example, adjacent institute
State includes folding shaft 22a, the adjacent sub- viewing area 21b and the son between sub- viewing area 21a and the sub- viewing area 21b
It include folding shaft 22b between the 21c of viewing area.Wherein, the folding shaft 22a and folding shaft 22b is that 22a and label are marked in Fig. 2
Dotted portion pointed by 22b.The misty filling region of flexible display screen 21 represents the boundary position of a sub- viewing area.
In the non-light-emitting surface of the flexible display screen 21, along the position of the axial direction of the folding shaft 22a and folding shaft 22b
It sets and is respectively arranged with the first support bar and (is not shown in Fig. 2, in combination with reference to the support of the first support bar 13a in Figure 1B and first
The position of 13b).
Optionally, in the embodiment of the present application, the structure of two first support bars is identical, below with the folding shaft
It is described for the first support bar 23b on the axial direction position of 22b.
The partial enlarged view of the first support bar 23b is refering to what is shown in Fig. 2, the first support bar 23b includes heating control
Channel 231b processed includes conductive heater component 2311b and phase change medium 2312b in the computer heating control channel 231b.
The flexible display apparatus further includes heating control circuit 25, the heating control circuit 25 and first support
Conductive heater component 2311b electrical connection in 23b.Optionally, the heating control circuit 25 includes control switch
251, the heating control circuit 25 and the conductive heater are realized by controlling the closing or opening of the control switch 251
It is connected to or disconnects between component 2311b.
Flexible foldable display device further includes dial plate 24, and the dial plate 24 is set to the light out of the sub- viewing area 21b
Face.Several keys 241 are provided on the dial plate 24, user can control described add by the operation to different key 241
Thermal control circuit 25 controls the control switch 251 and is opened or closed.When the control switch 251 is closed, the heating is controlled
Circuit 25 processed is connected to the conductive heater component 2311b, so that the conductive heater component 2311b is situated between to the phase transformation
Matter 2312b is heated, so that the phase change medium 2312b is from Solid State Transformation at liquid；When the control switch 251 disconnect,
The heating control circuit 25 is disconnected with the conductive heater component 2311b, and the conductive heater component 2311b stops work
Make, so that the phase change medium 2312b is changed from liquid to solid.When the phase change medium in first support bar is in solid-state
Under state, first support bar can to corresponding position folding shaft (such as in Fig. 2 the first support bar 23b to folding shaft
It 22b) plays a supporting role and (plays a supporting role in other words to the flexible display screen 21), and when the phase transformation in the first support bar
Medium is under liquid condition, so that the flexible display screen 21 is easy at the folding shaft 22a and/or the folding shaft 22b
In bending.
It should be noted that the heating control circuit 25 is located at the flexible foldable display device in the present embodiment
It is interior, but its specific location is not limited to position shown in Fig. 2, as long as the heating control circuit 25 can be with first support
Conductive heater component electrical connection in item.Therefore, Fig. 2 is only schematic diagram, not limitation of the invention.
Fig. 3 is the structural schematic diagram of another flexible foldable display device provided in an embodiment of the present invention.
With reference to Fig. 3, the flexible display apparatus includes flexible display screen 31, and the flexible display screen 31 includes that multiple sons are aobvious
Show area.For example, flexible display screen 31 as shown in Figure 3 includes three sub- viewing areas, respectively sub- viewing area 31a, sub- viewing area
31b and sub- viewing area 31c.It wherein, include a folding shaft between two sub- viewing areas of arbitrary neighborhood.For example, adjacent
The sub- viewing area 31a and the sub- viewing area 31b between include folding shaft 32a, the adjacent sub- viewing area 31b and institute
Stating includes folding shaft 32b between sub- viewing area 31c.Wherein, the folding shaft 32a and folding shaft 32b be in Fig. 3 mark 32a and
Mark dotted portion pointed by 32b.The misty filling region of flexible display screen 31 represents the boundary position of a sub- viewing area.
In the non-light-emitting surface of the flexible display screen 31, along the position of the axial direction of the folding shaft 32a and folding shaft 32b
It sets and is respectively arranged with the first support bar and (is not shown in Fig. 3, in combination with reference to the support of the first support bar 13a in Figure 1B and first
The position of 13b).
Unlike embodiment described in Fig. 2, in the present embodiment, the flexible foldable display device not only includes adding
Thermal control circuit 35 further includes display control circuit 36.Wherein the effect of the heating control circuit 35 can refer to above-mentioned Fig. 2 institute
The embodiment stated, the display control circuit 36 are used to control the change that the multiple sub- viewing area shows state.
The display control circuit 36 includes control switch 361, when the closure of the control switch 361, the display control
The display driver circuit (being not shown in Fig. 3) that circuit 36 processed can control flexible display screen 31 drives the display state of sub- viewing area
To show open state (the i.e. sub- bright screen in viewing area)；When the disconnection of the control switch 361, the display control circuit 36 and institute
The display driver circuit (being not shown in Fig. 3) for stating flexible display screen 31 disconnects, and the display state of sub- viewing area is that shape is closed in display
State (puts out screen in i.e. sub- viewing area).
The flexible foldable display device further includes dial plate 34, and the dial plate 3 is set to going out for the sub- viewing area 31b
Smooth surface.Several keys 341 are provided on the dial plate 34, user can control described by the operation to different key 341
Heating control circuit 35 (controlling the control switch 351 to be opened or closed) and (the i.e. control institute of the display control circuit 36
It states control switch 361 to be opened or closed).
It should be noted that the heating control circuit 35 and display control circuit 36 are positioned at described soft in the present embodiment
In the foldable display device of property, but its specific location is not limited to position shown in Fig. 3, as long as the heating control circuit 35
It can be electrically connected with the conductive heater component in first support bar, the display control circuit 36 can be aobvious with the flexibility
The display driver circuit of display screen connects.Therefore, Fig. 3 is only schematic diagram, not limitation of the invention.
Flexible foldable display device provided in an embodiment of the present invention may include following shape according to different folding modes
State: bending completely folded state, open and flat completely folded state, open and flat semi-collapsed condition and open and flat fully unfolded position.Below
The flexible foldable display device is described in detail in conjunction with specific embodiments to be under above-mentioned four kinds of states, first support bar
The display state change process of the phase-state change of interior phase change medium and each sub- viewing area.
Fig. 4 A is the structure that flexible foldable display device provided in an embodiment of the present invention is in open and flat fully unfolded position
Schematic diagram.Fig. 4 B is cross-sectional view of the flexible foldable display device at A-A shown in Fig. 4 A.
With reference to Fig. 4 A, flexible foldable display device includes flexible display screen 41, and the flexible display screen 41 includes multiple
Sub- viewing area.For example, flexible display screen 41 as shown in Figure 4 A includes three sub- viewing areas, respectively sub- viewing area 41a, son are aobvious
Show area 41b and sub- viewing area 41c.It wherein, include a folding shaft between two sub- viewing areas of arbitrary neighborhood.For example,
It as shown in Figure 4 A, include folding shaft 42a between the adjacent sub- viewing area 41a and the sub- viewing area 41b, adjacent described
It include folding shaft 42b between sub- viewing area 41b and the sub- viewing area 41c.Wherein, the folding shaft 42a and folding shaft 42b are
Dotted portion pointed by 42a and label 42b is marked in Fig. 4 A.It is aobvious that the misty filling region of flexible display screen 41 represents each height
Show the boundary position in area.
The flexible foldable display device further includes dial plate 44, and the dial plate 44 is set to the sub- viewing area 41b's
Light-emitting surface.Several keys 441 are provided on the dial plate 44, user can control institute by the operation to different key 441
It states control circuit (for example, the heating control circuit and display control circuit) starting in flexible foldable display device or closes,
So that the phase change medium in the first support bar carries out the change of the display state of solid-liquid conversion and the sub- viewing area of control.
The flexible display apparatus further includes multiple first support bars, and first support bar is located at the flexible display screen
Non- light-emitting surface, and be at least correspondingly arranged with the folding shaft.Fig. 4 A and Fig. 4 B is referred to for example, combining, in the Flexible Displays
The non-light-emitting surface of screen 41 is provided with the first support bar 43a and the first support bar 43b.Wherein, the first support bar 43a setting exists
Position (being arranged along the axial direction of the folding shaft 42a) corresponding with the folding shaft 42a, the second support bar 43b is set
It sets and (is arranged along the axial direction of the folding shaft 42b) in position corresponding with the folding shaft 42b.
First support bar further includes two the first support bars of the first kind, described two the first support bar of first kind difference
Two edges setting of the corresponding flexible display screen on the direction of the folding shaft axial direction.In conjunction with reference Fig. 4 A and figure
4B, the flexible display screen 41 the setting of non-light-emitting surface there are two the first support bar of the first kind, the respectively first kind first
Stay 43c (being arranged along the edge of the sub- viewing area 41a) and the first support bar of first kind 43d are (along the sub- viewing area 41c's
Edge setting).
It also include that phase change medium and conduction add in the first kind support bar 43c and the first support bar of first kind 43d
Thermal part (is not shown) in Fig. 4 A and Fig. 4 B, can control conductive heater component by heating control circuit and enters working condition,
Its phase is set to stop working from Solid State Transformation at liquid or control conductive heater component to carry out heating to phase change medium, so that
The phase of phase change medium changes from liquid to solid.
As shown in Figure 4 A and 4 B shown in FIG., in the case where the flexible foldable display device is in open and flat fully unfolded position, each
First support bar (the i.e. described first support bar 43a and the first support bar 43b) passes through the phase change medium phase
Transformation (phase change medium phase is solid-state at this time) is kept constant one direction extension state, and all sub- viewing area (i.e. institutes
State sub- viewing area 41a, the sub- viewing area 41b and the sub- viewing area 41c) it is in coplanar display open state.Institute
The first kind the first support bar 43c and the first kind the first support bar 43d are stated also by the phase change medium phase (phase transformation at this time
Medium phase be solid-state) transformation be kept constant one direction extension state, the first support bar described in this way and the first kind
First support bar plays support to the flexible display screen 41 of the flexible foldable display device under open and flat fully unfolded position
Effect.
Fig. 5 A is that flexible foldable display device provided in an embodiment of the present invention is in the structure of open and flat semi-collapsed condition and shows
It is intended to.Fig. 5 B is cross-sectional view of the flexible foldable display device at A-A shown in Fig. 5 A.
In conjunction with reference Fig. 5 A and Fig. 5 B, flexible foldable display device includes flexible display screen 51, the flexible display screen
51 include multiple sub- viewing areas.For example, flexible display screen 51 as shown in Figure 5 B includes three sub- viewing areas, respectively son display
Area 51a, sub- viewing area 51b and sub- viewing area 51c.It wherein, include a folding between two sub- viewing areas of arbitrary neighborhood
Folded axis.For example, as shown in Figure 5A, between the adjacent sub- viewing area 51a and the sub- viewing area 51b include folding shaft 52a,
It include folding shaft 52b between the adjacent sub- viewing area 51b and the sub- viewing area 51c.Wherein, the folding shaft 52a and
Folding shaft 52b is that dotted portion pointed by 52a and label 52b is marked in Fig. 5 A.The misty filling region of flexible display screen 51
Represent the boundary position of each sub- viewing area.
As shown in Figure 5 B, the non-light-emitting surface of the flexible display screen 51 is provided with the support of the first support bar 53a and first
53b.Wherein, the first support bar 53a is arranged in position corresponding with the folding shaft 52a (along the folding shaft 52a's
Axial direction setting), the second support bar 53b is arranged in position corresponding with the folding shaft 52b (along the folding shaft
The axial direction of 52b is arranged).It is arranged in the non-light-emitting surface of the flexible display screen 51 there are two the first support bar of the first kind, point
It Wei not the first support bar of first kind 53c (being arranged along the edge of the sub- viewing area 51a) and (edge the first kind the first support bar 53d
The edge of the sub- viewing area 51c is arranged).
In the present embodiment, it is aobvious to can control the flexible foldable by operating to the key on dial plate 54 by user
The conductive heater members in heating control circuit and the first support bar 53a in showing device, so that the conduction adds
Thermal part heats the phase change medium in the first support bar 53a, makes its phase from Solid State Transformation at liquid.User is logical
It crosses and the key on dial plate 54 is operated, the display control circuit pair in the flexible foldable display device can also be controlled
The control switch in the display control channel in the first support bar 53a is answered to disconnect, so that the display shape of the sub- viewing area 51a
State is display closed state (control the sub- viewing area 51a and put out screen).
Under open and flat semi-collapsed condition as fig. 5 a and fig. 5b, the sub- viewing area 51a can be outside the folding shaft 52a
Folding, be set to after being folded outward the edge sub- viewing area 51a the first kind the first support bar 53c and the sub- viewing area
The non-light-emitting surface of 51b is contacted to support the sub- viewing area 51b, and the sub- viewing area 51a puts out screen, the sub- viewing area 51b
With the sub- bright screen of viewing area 51c.
Further, after the sub- viewing area 51a is folded outward along the folding shaft 52a, heating control circuit can be controlled again
It is disconnected with the conductive heater component in the first support bar 53a, so that the phase of the phase change medium in the first support bar 53a
State changes from liquid to solid, so that the first support bar 53a and the first support bar 53b are kept constant one direction and prolong
State is stretched, to play fixed supporting role to the flexible foldable display device under open and flat semi-collapsed condition.
In other embodiments, according to above-mentioned similar control method, can control the sub- viewing area 51c can be along described
Folding shaft 52b is folded outward, and after being folded outward, is set to the first kind the first support bar 53d and the institute at the edge sub- viewing area 51c
The non-light-emitting surface for stating sub- viewing area 51b is contacted to support the sub- viewing area 51b, and the sub- viewing area 51c puts out screen, the son
Viewing area 51a and the sub- bright screen of viewing area 51b.
It should be noted that display state is that display is opened in flexible foldable display device shown in Fig. 5 A and Fig. 5 B
Two sub- viewing areas of state are in same plane.In other embodiments, the two sub- viewing areas are (in display opening state
The sub- viewing area of state) not in the same plane, i.e., the folding shaft position between the two sub- viewing areas can form a folder
Angle (angle is not 180 degree).
In addition, the flexible display screen 51 in flexible foldable display device shown in Fig. 5 A and Fig. 5 B is three folding Flexible Displays
Screen (including three sub- viewing areas) is in there are two sub- viewing area under open and flat semi-collapsed condition and shows that open state is (i.e. bright
Screen), a sub- viewing area (the sub- viewing area being folded outward) is in display closed state (putting out screen).For four fold or four fold with
On flexible display screen (include four or more sub- viewing area), under open and flat semi-collapsed condition, at least two sons
Viewing area is in display open state.If flexible display screen 51 is two folding flexible display screens (including two sub- viewing areas),
Under open and flat semi-collapsed condition, two sub- viewing areas are in display open state (i.e. bright screen), but two sub- viewing areas are not same
One plane, i.e. two sub- viewing areas form angle at folding shaft (angle is not 180 degree).
Fig. 6 A is the structure that flexible foldable display device provided in an embodiment of the present invention is in open and flat completely folded state
Schematic diagram.Fig. 6 B is cross-sectional view of the flexible foldable display device at A-A shown in Fig. 6 A.
In conjunction with reference Fig. 6 A and Fig. 6 B, the flexible foldable display device includes flexible display screen 61, described flexible aobvious
Display screen 61 includes multiple sub- viewing areas.For example, flexible display screen 61 as shown in Figure 6B includes three sub- viewing areas, it is respectively sub
Viewing area 61a, sub- viewing area 61b and sub- viewing area 61c.It wherein, include one between two sub- viewing areas of arbitrary neighborhood
A folding shaft.For example, including folding shaft between the adjacent sub- viewing area 61a and the sub- viewing area 61b as shown in Figure 6A
It include folding shaft 62b between 62a, the adjacent sub- viewing area 61b and the sub- viewing area 61c.Wherein, the folding shaft
62a and folding shaft 62b is that dotted portion pointed by 62a and label 62b is marked in Fig. 6 A.The misty filling of flexible display screen 61
The boundary position of each sub- viewing area of Regional Representative.
As shown in Figure 6B, the non-light-emitting surface of the flexible display screen 61 is provided with the support of the first support bar 63a and first
63b.Wherein, the first support bar 63a is arranged in position corresponding with the folding shaft 62a (along the folding shaft 62a's
Axial direction setting), the second support bar 63b is arranged in position corresponding with the folding shaft 62b (along the folding shaft
The axial direction of 62b is arranged).It is arranged in the non-light-emitting surface of the flexible display screen 61 there are two the first support bar of the first kind, point
It Wei not the first support bar of first kind 63c (being arranged along the edge of the sub- viewing area 61a) and (edge the first kind the first support bar 63d
The edge of the sub- viewing area 61c is arranged).
In the present embodiment, it is aobvious to can control the flexible foldable by operating to the key on dial plate 64 by user
Heating control circuit in showing device respectively with the conductive heater component and first support bar in the first support bar 63a
Conductive heater members in 63b, so that two conductive heater components are respectively to the phase change medium in respective first support bar
It is heated, makes its phase from Solid State Transformation at liquid.User can also be controlled by operating to the key on dial plate 54
Display control circuit in the flexible foldable display device corresponds to the first support bar 63a and first support bar
The control switch in the display control channel of 63b disconnects, so that the display shape of the sub- viewing area 61a and the sub- viewing area 61c
State is display closed state (control the sub- viewing area 61a and the sub- viewing area 61c puts out screen).
Under open and flat completely folded state as shown in Figure 6 A and 6 B, the sub- viewing area 61a can be along the folding shaft 62a
It is folded outward, the sub- viewing area 61c can be folded outward along the folding shaft 62b, after being folded outward, be set to the edge sub- viewing area 61a
The first kind the first support bar 63c and be set to the first support bar of first kind 63d at the edge sub- viewing area 61c
Contacted respectively with the non-light-emitting surface of the sub- viewing area 61b, to support the sub- viewing area 61b, and the sub- viewing area 61a and
The sub- viewing area 61c puts out screen, the sub- bright screen of viewing area 61b.
Further, it is folded outward in the sub- viewing area 61a along the folding shaft 62a and the sub- viewing area 61c can be along institute
State after folding shaft 62b is folded outward, can control again heating control circuit respectively with the conductive heater portion in the first support bar 63a
Conductive heater component in part and the first support bar 63b disconnects, so that the first support bar 63a and first support
The phase of phase change medium in 63b changes from liquid to solid, so that the first support bar 63a and the first support bar
63b is kept constant one direction extension state, to play to the flexible foldable display device in open and flat completely folded state
Fixed supporting role.
It should be noted that the flexible display screen 61 in flexible foldable display device shown in Fig. 6 A and Fig. 6 B is three foldings
Flexible display screen (including three sub- viewing areas), under open and flat completely folded state, only one sub- viewing area is in display
Open state (i.e. bright screen), the sub- viewing area of other two (the sub- viewing area being folded outward) are in display closed state and (put out
Screen).For flexible display screen (including four or more sub- viewing area) more than four fold or four fold, in open and flat complete folding
It is all that only one sub- viewing area is in display open state, minor viewing area is in display closed state under overlapping state.
Fig. 7 is that flexible foldable display device provided in an embodiment of the present invention is shown in the structure of bending completely folded state
It is intended to.
The bending completely folded state shown in Fig. 7 that is in is that the flexible foldable display device shown in Fig. 6 A is in open and flat
On the basis of under completely folded state, by flexible display screen state after bending.
With reference to Fig. 7, the flexible foldable display device includes flexible display screen 71, in the case where being bent completely folded state,
The sub- viewing area 71b not being folded outward under open and flat completely folded state is merely illustrated in Fig. 7, in the sub- viewing area 71b
Light-emitting surface on be provided with dial plate 74, there are several keys 741 on the dial plate 74.In the sub- viewing area 71b and its left side
There is folding shaft 72a and folding shaft 72b between right adjacent sub- viewing area (being not shown in Fig. 7).Wherein, the folding shaft 72a
It is that dotted portion pointed by 72a and label 72b is marked in Fig. 7 with folding shaft 72b.The misty filling region of flexible display screen 71
Represent the boundary position of each sub- viewing area.
When the flexible foldable display device is under open and flat completely folded state, to be bent the Flexible Displays
Screen, user can control the heating control in the flexible foldable display device by operating the key 741 on the dial plate 74
Circuit processed first with conductive heater component and corresponding folding shaft 72b in the first support bar of corresponding folding shaft 72a respectively
Conductive heater members in stay, so that two conductive heater components are respectively to the phase change medium in respective first support bar
It is heated, makes its phase from Solid State Transformation at liquid.It is readily bent the flexible display screen, needed for bending to
After state (such as bending completely folded state shown in Fig. 7), then by operating the key 741 on the dial plate 74, control institute
The heating control circuit stated in flexible foldable display device is disconnected with the conductive heater component in two the first support bars respectively,
So that the phase of the phase change medium in two the first support bars changes from liquid to solid again, so that it is kept constant bending
State.
Fig. 8 A is the structural schematic diagram of another flexible foldable display device provided in an embodiment of the present invention.Fig. 8 B is figure
Cross-sectional view of the flexible foldable display device at A-A shown in 8A.
With reference to Fig. 8 A, the flexible foldable display device includes flexible display screen 81, and the flexible display screen 81 includes
Multiple sub- viewing areas.For example, flexible display screen 81 as shown in Figure 8 A include three sub- viewing areas, respectively sub- viewing area 81a,
Sub- viewing area 81b and sub- viewing area 81c.It wherein, include a folding shaft between two sub- viewing areas of arbitrary neighborhood.Example
It such as, as shown in Figure 8 A, include folding shaft 82a between the adjacent sub- viewing area 81a and the sub- viewing area 81b, adjacent
It include folding shaft 82b between the sub- viewing area 81b and the sub- viewing area 81c.The flexible foldable display device is also wrapped
Dial plate 84 is included, the dial plate 84 is set to the light-emitting surface of the sub- viewing area 81b.Several keys are provided on the dial plate 84
841。
The flexible display apparatus further includes multiple first support bars, and first support bar is located at the flexible display screen
Non- light-emitting surface, and be at least correspondingly arranged with the folding shaft.Fig. 8 A and Fig. 8 B is referred to for example, combining, in the Flexible Displays
The non-light-emitting surface of screen 81 is provided with the first support bar 83a and the first support bar 83b.Wherein, the first support bar 83a setting exists
Position (being arranged along the axial direction of the folding shaft 82a) corresponding with the folding shaft 82a, the second support bar 83b is set
It sets and (is arranged along the axial direction of the folding shaft 82b) in position corresponding with the folding shaft 82b.First support bar
Phase change medium is provided in 83a and the first support bar 83b.
Unlike above-mentioned each embodiment, in the present embodiment, the flexible display apparatus further includes multiple second
Stay, second support bar are located at the non-light-emitting surface of the flexible display screen 81, and along perpendicular to the folding shaft axial direction side
To direction extend.Corresponding second support bar in the different sub- viewing area is mutually indepedent.
Specifically, as shown in Figure 8 A, in the region sub- viewing area 81a, the second support bar 85a and are provided with
Two support bar 85d, the second support bar 85a and the second support bar 85d are located at the non-light out of the flexible display screen 81
Face, and extend along the direction of the axial direction perpendicular to the folding shaft 82a and the folding shaft 82b.In the sub- viewing area
In the region 81b, it is provided with the second support bar 85b and the second support bar 85e, the second support bar 85d and the second support
85e is located at the non-light-emitting surface of the flexible display screen 81, and along perpendicular to the folding shaft 82a and the folding shaft
The direction of the axial direction of 82b extends.In the region sub- viewing area 81c, it is provided with the second support bar 85c and second
Support bar 85f, the second support bar 85c and the second support bar 85f are located at the non-light-emitting surface of the flexible display screen 81,
And extend along the direction of the axial direction perpendicular to the folding shaft 82a and the folding shaft 82b.
Further, an integrated support item can be for same sub- viewing area, the first support bar and the second support bar.Example
Such as, with continued reference to Fig. 8 A, for sub- viewing area 81a, including the second support bar 85a and the second support bar 85d.Second support
85a, the second support bar 85d and with along the folding shaft 82a (folding between sub- viewing area 81a and sub- viewing area 81b
Folded axis) axial direction setting the first support bar 83a, these three support bars can be the support bar of an entirety.Certainly, institute
State the first support bar 83a can also in sub- viewing area 81b the second support bar 85b and the second support bar 85e be an entirety
Support bar.
In the present embodiment, second support bar can be solid-state structure, such as solid cylinder, the solid cylinder
Material can be at least one of rubber, polyvinyl chloride.Second support bar may be can phase change structure, such as institute
It is identical as the structure of first support bar to state the second support bar.
Since adjacent sub- viewing area can be folded outward along corresponding folding shaft, between each second support bar mutually solely
It is vertical.It should be noted that each second support bar shown in Fig. 8 A is located at the edge line of corresponding sub- viewing area, the edge
Line is along the edge line perpendicular to folding shaft axial direction.In other embodiments, each second support bar also can be set
The middle position of corresponding sub- viewing area.
Fig. 9 is that a kind of cross section structure of the first support bar in flexible foldable display device provided in an embodiment of the present invention shows
It is intended to.
With reference to Fig. 9, first support bar 9 is cylindrical structure, which successively includes: phase transformation from inside to outside
Medium 91, conductive heater component 92 and thermal insulation layer 93.Wherein, the effect of the thermal insulation layer 93 is that the conduction adds in order to prevent
Thermal part 93 carries out the phase change medium 91 to scald device or human body in heating process, therefore can be played using thermal insulation layer 93
Protect the effect of device and human body.
Optionally, first support bar 9 is cylindrical structure, which successively includes: phase transformation from inside to outside
Medium 91, thermally conductive insulating layer, conductive heater component 92 and thermal insulation layer 93.Unlike Fig. 9, in the present embodiment, described
The thermally conductive insulating layer, the effect of the thermally conductive insulating layer are additionally provided between conductive heater component 92 and the phase change medium 91
It is preferably to conduct heat when the conductive heater component 92 heats the phase change medium 91, while playing will be described
The effect that conductive heater component 92 and the phase change medium 91 insulate, because when the phase change medium 91 is using eutectic
When point alloy, the conductive heater component 92 can use resistance wire (and metal material), and in order to avoid the two contact is drawn
Short circuit is played, insulating effect can be played therebetween using the thermally conductive insulating layer.It should be noted that above-mentioned first support
Structure can be applied to all first support bars in above-described embodiment, if also use can phase transformation knot for second support bar
Structure, then also applicable above-mentioned structure.
In conclusion the flexible foldable display device that the technical program provides, can solve flexible aobvious in the prior art
The problem of support can not be fixed after display screen expansion.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the present invention.
Claims (12)
1. a kind of flexible foldable display device characterized by comprising
Flexible display screen, the flexible display screen include multiple sub- viewing areas, wherein the sub- viewing area of two of arbitrary neighborhood
Between include a folding shaft；
First support bar, first support bar are located at the non-light-emitting surface of the flexible display screen, and at least with the folding shaft
It is correspondingly arranged；
Phase change medium is provided in first support bar, first support bar shows for realizing the flexible foldable and fills
Set the change of folded state.
2. flexible foldable display device as described in claim 1, which is characterized in that further include:
Heating control circuit, is provided with conductive heater component in first support bar, the conductive heater component and it is described plus
Thermal control circuit electrical connection.
3. flexible foldable display device as described in claim 1, which is characterized in that further include:
Display control circuit, the display control circuit are used to control the change that the multiple sub- viewing area shows state.
4. flexible foldable display device as described in claim 1, which is characterized in that further include:
Multiple second support bars, second support bar are located at the non-light-emitting surface of the flexible display screen, and along perpendicular to described
The direction of folding shaft axial direction extends；
Corresponding second support bar in the different sub- viewing area is mutually indepedent.
5. flexible foldable display device as claimed in claim 4, which is characterized in that second support bar is solid-state junction
Structure, can one of phase change structure.
6. flexible foldable display device as described in claim 1, which is characterized in that first support bar includes two the
A kind of first support bar, it is axial along the folding shaft that described two the first support bars of the first kind respectively correspond the flexible display screen
Two edges setting on the direction in direction.
7. flexible foldable display device as described in claim 1, which is characterized in that the phase change medium includes low melting point
It is one or more in alloy or high-molecular organic material.
8. flexible foldable display device as described in claim 1, which is characterized in that first support bar is cylindrical body,
The phase change medium is provided in the cylindrical body, wherein the material of the cylindrical body include rubber, in polyvinyl chloride at least
It is a kind of.
9. flexible foldable display device as claimed in claim 2, which is characterized in that first support bar includes heat-insulated
Layer, the thermal insulation layer coat the conductive heater component and the phase change medium.
10. flexible foldable display device as claimed in claim 9, which is characterized in that first support bar further includes leading
Thermal insulation layer, the thermally conductive insulating layer is between the conductive heater component and the phase change medium.
11. flexible foldable display device as described in claim 1 characterized by comprising
It is bent completely folded state, first support bar is kept constant bending by the transformation of the phase change medium phase
State, and only one described sub- viewing area is in display open state；
Open and flat completely folded state, first support bar are kept constant one direction by the transformation of the phase change medium phase
Extension state, and only one described sub- viewing area is in display open state；
Open and flat fully unfolded position, first support bar are kept constant one direction by the transformation of the phase change medium phase
Extension state, and all sub- viewing areas are in coplanar display open state.
12. flexible foldable display device as described in claim 1, which is characterized in that further include:
Open and flat semi-collapsed condition, first support bar are kept constant one direction by the transformation of the phase change medium phase and prolong
State is stretched, and at least two adjacent sub- viewing areas are in display open state.
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| CN201910579245.7A CN110211504B (en) | 2019-06-28 | 2019-06-28 | Flexible foldable display device |
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|---|---|---|---|
| CN201910579245.7A CN110211504B (en) | 2019-06-28 | 2019-06-28 | Flexible foldable display device |
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