CN113261102A - Flexible functional panel and flexible device - Google Patents
Flexible functional panel and flexible device Download PDFInfo
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- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
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Abstract
A flexible functional panel and a flexible device relate to a flexible substrate of an electronic device. The flexible functional panel comprises a flexible substrate (110), a functional layer (120) arranged on the flexible substrate (110) and a heating layer (130), wherein the heating layer (130) is used for heating in a power-on state. The flexible device comprises a flexible functional panel according to any of the above. The flexible functional panel and the flexible device can heat the flexible functional panel through the arranged heating layer (130) so as to reduce the occurrence of the curling and shaping of the flexible functional panel.
Description
The present disclosure relates to a flexible substrate of an electronic device, and more particularly, to a flexible functional panel and a flexible device.
With the rapid development of electronic technology, the electronic product industry is more and more competitive, and the requirements of users on the performance and appearance of electronic products such as mobile phones are higher and higher. In order to improve the portability of electronic products, flexible panels have become a hot spot of current research.
Taking devices requiring touch operation such as mobile phones and tablet computers as examples, in addition to ensuring good touch operation and display performance, with further demands on portability, operation convenience and the like of electronic products, it is desirable that electronic products have better flexibility and bendability, and thus, flexible functional panels are produced. Taking a flexible display panel for realizing a display function as an example, when a better display effect can be realized in use, due to the flexibility of the device, the flexible display panel can form a certain bending state and change of a display angle, so that the convenience of use and operation can be improved, the service life of the flexible display panel is also prolonged, if the flexible display panel needs to realize a touch function at the same time, namely, a flexible touch sensor is arranged in the flexible display panel, and the flexible touch sensor transmits a touch signal to a processing chip to realize the function by sensing the touch operation action of a user on the flexible functional panel.
Taking a flexible functional panel for realizing display as an example, the structure in the prior art generally includes a flexible substrate, an electrode pattern conductive layer, an edge routing layer and a display module, and for the flexible functional panel which needs to realize a touch function, touch sensing is realized through an electrode pattern formed on the electrode pattern conductive layer.
However, the conventional flexible functional panel is easy to bend or curl and shape after being bent or curled for multiple times, so that the flexible functional panel cannot restore the original flat state, and the subsequent use effect and appearance of the product are adversely affected.
Disclosure of Invention
The purpose of the present disclosure is to provide a flexible functional panel and a flexible device, which can reduce the occurrence of the curling and shaping of the flexible functional panel by heating the flexible functional panel through a heating layer.
The embodiment of the disclosure is realized by the following steps:
in an aspect of the disclosed embodiments, there is provided a flexible functional panel including: the flexible substrate, set up functional layer and the layer that generates heat on the flexible substrate, the layer that generates heat is used for generating heat under the on-state.
Optionally, the heat generating layer drives the flexible functional panel to return to the flat state when generating heat.
Optionally, the heat generating layer is disposed in contact with the flexible substrate.
Optionally, the heat generating layer is disposed on the functional layer, and an insulating heat conducting layer is disposed between the heat generating layer and the functional layer.
Optionally, the heat generating layer includes a conductive heat generating material, and the conductive heat generating material and the conductive material layer of the functional layer are disposed in the same layer.
Optionally, the conductive heating material is wound around the periphery of the conductive material layer.
Optionally, the functional layer comprises an organic light emitting display layer.
Optionally, the conductive material layer of the functional layer includes a plurality of functional electrodes, the conductive heating material cooperates with the functional electrodes of the functional layer at a first time to perform a preset function, and the conductive heating material is electrified and heated at a second time.
Optionally, the functional electrode is a touch electrode, and the conductive heating material cooperates with the functional electrode of the functional layer at the first time to perform a preset function including sensing a touch of an external environment on the flexible functional panel to generate a touch signal.
Optionally, the conductive heating material includes a plurality of electrodes, and the plurality of electrodes of the conductive heating material and the plurality of touch electrodes are alternately arranged.
Optionally, the thermal power of the electrically conductive heat-generating material is greater than the thermal power of the layer of electrically conductive material.
Optionally, the flexible functional panel includes a functional region and a non-functional region surrounding the functional region, and the heat generating layer is located in the non-functional region.
Optionally, the shape of the heat-generating layer in the non-functional area includes at least one of a closed ring shape connected end to end, a strip shape respectively arranged on two opposite sides, and a broken line shape connected with three adjacent sides.
Optionally, the organic light emitting display layer includes a display area and a non-display area surrounding the display area on the flexible substrate, the heating layer includes a conductive heating pattern disposed in the display area, the conductive heating pattern is made of a transparent material, and the conductive heating pattern includes at least one of a surface layer pattern covering the display area, a linear loop pattern disposed in an array, and a curved loop pattern disposed in an array.
Optionally, the heating layer is powered on through an external wire, and the external wire is isolated from the signal wire lead of the organic light emitting display layer in the non-display area through an insulating heat conduction layer.
Optionally, an insulating heat conduction layer is further disposed on the heat generation layer, and the insulating heat conduction layer covers the heat generation layer.
Optionally, the heat generating layer is bonded to the adjacent tier by an adhesive layer.
In another aspect of the disclosed embodiments, there is provided a flexible device comprising the flexible functional panel of any one of the above.
The beneficial effects of the disclosed embodiment include:
the flexible functional panel provided by the embodiment of the disclosure comprises a flexible substrate and a functional layer arranged on the flexible substrate, wherein a specific function can be realized through the functional layer arranged on the flexible substrate. The flexible substrate is also provided with a heating layer which can generate heat in a power-on state. When the flexible functional panel works normally, the flexible substrate in the flexible functional panel can be heated through the heat generation layer, and the bending deformation or the curling shape of the flexible substrate gradually disappears along with the gradual rise of the temperature of the flexible substrate, so that the bending deformation or the curling shape of the flexible substrate caused by long-term use or long-term bending is eliminated, and the bending deformation or the curling shape caused by long-term use or long-term bending can be reduced.
The flexible device provided by the embodiment of the disclosure adopts the flexible functional panel, and can reduce the occurrence of bending deformation or curling and shaping caused by long-term use or long-term bending.
To more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present disclosure and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings may be obtained from the drawings without inventive effort.
Fig. 1 is one of schematic structural diagrams of a flexible functional panel provided in an embodiment of the present disclosure;
fig. 2 is a second schematic structural diagram of a flexible functional panel according to an embodiment of the present disclosure;
fig. 3 is a third schematic structural diagram of a flexible functional panel according to an embodiment of the present disclosure;
fig. 4 is a fourth schematic structural diagram of a flexible functional panel provided in the embodiment of the present disclosure;
fig. 5 is a fifth schematic structural view of a flexible functional panel provided in the embodiment of the present disclosure;
fig. 6 is a sixth schematic structural view of a flexible functional panel according to an embodiment of the present disclosure;
fig. 7 is a seventh schematic structural diagram of a flexible functional panel according to an embodiment of the present disclosure;
fig. 8 is an eighth schematic structural diagram of a flexible functional panel according to an embodiment of the present disclosure;
fig. 9 is a ninth schematic structural diagram of a flexible functional panel according to an embodiment of the present disclosure;
fig. 10 is a tenth of a schematic structural diagram of a flexible functional panel provided in an embodiment of the present disclosure;
fig. 11 is an eleventh schematic structural diagram of a flexible functional panel according to an embodiment of the present disclosure;
fig. 12 is a twelfth schematic structural view of a flexible functional panel provided in the embodiment of the present disclosure;
fig. 13 is one of schematic structural diagrams of a heat generating layer in a flexible functional panel provided in an embodiment of the present disclosure;
fig. 14 is a second schematic structural diagram of a heat generating layer in the flexible functional panel according to the embodiment of the present disclosure;
fig. 15 is a thirteen schematic structural diagram of a flexible functional panel provided in the embodiment of the present disclosure;
fig. 16 is a fourteenth schematic structural diagram of a flexible functional panel according to an embodiment of the present disclosure.
Icon: 110-a flexible substrate; 120-a functional layer; 130-a heat-generating layer; 140-signal line leads; 150-an insulating and thermally conductive layer; 160-insulating heat-conducting layer; 170-external wiring; 180-an adhesive layer; 190-touch module.
To make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the embodiments of the present disclosure will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present disclosure, but not all of the embodiments. The components of the embodiments of the present disclosure, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present disclosure, presented in the figures, is not intended to limit the scope of the claimed disclosure, but is merely representative of selected embodiments of the disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present disclosure, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplicity of description, but does not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present disclosure. Moreover, the terms "first," "second," and "third" as appearing are configured for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present disclosure, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "disposed," and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present disclosure can be understood in specific instances by those of ordinary skill in the art.
Preferred embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings.
In an aspect of the disclosed embodiments, there is provided a flexible functional panel, as shown in fig. 1, including: the flexible substrate 110, the functional layer 120 disposed on the flexible substrate 110, and the heat generating layer 130, wherein the heat generating layer 130 generates heat in a power-on state.
Among them, the flexible substrate 110 generally adopts a PET (polyethylene terephthalate) flexible film having a high visible light transmittance, so that when the flexible functional panel of the present disclosure implements a display function, the display transmittance can be improved. Of course, in the embodiment of the present disclosure, the flexible substrate 110 may also be a PI (polyimide) flexible film or a PC (polycarbonate) flexible film, and the material of the flexible substrate 110 is not particularly limited as long as it can exhibit a flexible bendable state.
The heat generating layer 130 is generally made of a resistive material having various shapes, and the resistive material can convert electric energy into heat energy in a power-on state, so that the heat generating layer 130 can generate heat.
The flexible functional panel provided by the embodiment of the present disclosure includes a flexible substrate 110 and a functional layer 120 disposed on the flexible substrate 110, and a specific function can be implemented by the functional layer 120 disposed on the flexible substrate 110. A heat generating layer 130 is further provided on the flexible substrate 110, and the heat generating layer 130 can generate heat when energized. In normal operation, the heat-generating layer 130 generates heat to heat the flexible substrate 110 and other layers on the flexible substrate 110 in the flexible functional panel as a whole, and as the temperature of the flexible substrate 110 gradually increases, the state of the flexible substrate 110 in the curling shape gradually disappears, so that the bending deformation or the curling shape of the flexible substrate 110 due to long-term use or long-term bending is eliminated, and the flexible functional panel of the present disclosure can reduce the occurrence of the bending deformation or the curling shape due to long-term use or long-term bending.
Alternatively, the heat generation layer 130 drives the flexible functional panel to return to the flat state when generating heat.
The heat generated by the heat generating layer 130 in the power-on state can heat the flexible substrate 110 in the flexible functional panel and other layers on the flexible substrate 110, so that the flexible substrate 110 can be leveled, and the flexible functional panel as a whole can be leveled.
Alternatively, as shown in fig. 1, the heat generating layer 130 is disposed in contact with the flexible substrate 110.
The heat generating layer 130 is positioned between the flexible substrate 110 and the functional layer 120. The flexible substrate 110 is in direct contact with the heat generating layer 130, that is, the heat generating layer 130 is firstly disposed on the flexible substrate 110, and then the functional layer 120 is disposed thereon. Because flexible functional panel is in the use and the process of buckling, compared with other rete, flexible substrate 110 is changeful to take place the deformation, also more needs to correct, set up layer 130 that generates heat at first on flexible substrate 110, can make layer 130 that generates heat generate electricity heat the heat that produces directly to flexible substrate 110 conduction, make layer 130 that generates heat to the heating effect of flexible substrate 110 better relatively, the temperature rise of flexible substrate 110 is faster, the time of eliminating flexible substrate 110 bending deformation or curling setting is shorter relatively, and it is better relatively to level the effect.
Alternatively, as shown in fig. 16, the heat generating layer 130 is disposed on the functional layer 120, and an insulating and heat conducting layer 150 is disposed between the functional layer 120 and the heat generating layer.
As shown in fig. 16, the heat generating layer 130 is insulated from the functional layer 120 by the insulating and heat conducting layer 150, so that the short circuit and other undesirable phenomena caused by the conduction between the circuit in the functional layer 120 and the heat generating layer 130 are avoided, and the working stability of the flexible functional panel is ensured. Meanwhile, the self heat-conducting property of the insulating heat-conducting layer 150 improves the heat conducting capacity, so that the whole flexible functional panel can generate heat and conduct heat uniformly as much as possible, and the speed and the effect of eliminating bending deformation or curling and shaping of the flexible functional panel are further improved.
Alternatively, the heat generating layer 130 includes a conductive heat generating material disposed in the same layer as the conductive material of the functional layer 120.
It should be noted that the conductive heating material of the heating layer 130 and the conductive material layer of the functional layer 120 are disposed in the same layer, and the heating layer 130 is not in contact with the conductive material layer of the functional layer 120 and the signal line lead 140 of the functional layer 120.
Illustratively, as shown in fig. 9, the conductive material layer of the functional layer 120 is disposed on the flexible substrate 110, and the conductive heat generating material of the heat generating layer 130 is disposed around the outer circumference of the signal wire lead 140 of the functional layer 120 and is located at the edge of the flexible substrate 110, i.e., within the non-functional area of the flexible functional panel.
Illustratively, the conductive material layer of the functional layer 120 and the conductive heat generating material of the heat generating layer 130 are both disposed on the flexible substrate 110, and both the conductive heat generating material and the conductive material layer are located in the functional region of the flexible functional panel, and the conductive material layer and the conductive heat generating material are not in contact with each other, i.e., are not in conduction with each other.
The conductive heating material of the heating layer 130 and the conductive material layer of the functional layer 120 are disposed in the same layer, and the heating layer 130 is also disposed in the non-functional area of the flexible functional panel and wound around the periphery of the signal line lead 140. Since the heat generating layer 130 is not in contact with the functional layer 120 and the signal line leads 140, the insulating and heat conducting layer 150 between the heat generating layer 130 and the functional layer 120 does not need to be arranged, thereby reducing the cost of the flexible functional panel.
Optionally, the conductive heating material is wound around the periphery of the conductive material layer.
The conductive heating material is disposed around the periphery of the conductive material layer of the functional layer 120, and the conductive heating material is not in contact with the conductive material layer of the functional layer 120.
Illustratively, as shown in fig. 10 and 11, the conductive heat generating material is disposed on the outer periphery of the conductive material layer of the functional layer 120, the conductive heat generating material is disposed on the signal line lead 140 of the functional layer 120, and an insulating heat conducting layer 150 for insulating the conductive heat generating material from the signal line lead 140 is disposed between the conductive heat generating material and the signal line lead 140 of the functional layer 120.
Optionally, the functional layer 120 comprises an organic light emitting display layer.
Organic Light Emitting Diode (OLED) devices are increasingly used in high performance display fields due to their characteristics of self-luminescence, fast response, wide viewing angle, and flexible display. As an example, the functional layer 120 of the embodiment of the present disclosure includes an organic light emitting display layer, that is, the flexible functional panel of the embodiment of the present disclosure may be a flexible display panel by organic electroluminescence.
It should be noted that, the organic light emitting display layer described in the embodiments of the present disclosure is not limited to a single layer, and it should be known to those skilled in the art that a layer for implementing an organic light emitting display generally includes a plurality of layer structures, and the plurality of layer structures collectively form a light emitting display layer capable of being powered on to implement a light emitting display.
Optionally, the conductive material layer of the functional layer 120 includes a plurality of functional electrodes, the conductive heating material cooperates with the functional electrodes of the functional layer 120 at a first time to perform a preset function, and the conductive heating material is electrified and heated at a second time.
It should be noted that, in the embodiments of the present disclosure, the occurrence time and the duration time of the first time and the second time are not particularly limited, but according to the foregoing content of the present application, a person skilled in the art should know that the operation of the conductive heat generating material at the first time and the operation at the second time do not occur simultaneously, that is, the conductive heat generating material is capable of performing two operation states alternately. The conductive heating material cooperates with the functional electrode of the functional layer 120 to perform a predetermined function at a first time, that is, the first time is a time when the flexible functional panel is normally used to realize its corresponding function. For example, for a flexible display panel for implementing a display function, at a first time, the preset function that the conductive heating material and the functional electrode of the functional layer 120 cooperate to perform is to implement display. The conductive heating material is electrified to generate heat at the second time, and the conductive heating material is electrified to generate heat at the second time, so that the flexible functional panel can work to eliminate the bending deformation of the flexible functional panel. At the second time, the conductive heating material is not used as a display or other functions, but is electrified alone to generate heat, so that the heating effect on the flexible functional panel is realized, and the flexible functional panel of the embodiment of the disclosure can eliminate bending deformation or curling and shaping.
The conductive material layer of the functional layer 120 is configured to be composed of a plurality of functional electrodes, the conductive heating material and the conductive material layer of the functional layer 120 are configured in the same layer, the conductive heating material and the functional electrodes of the functional layer 120 can jointly act to execute a preset function at the first time, and the conductive heating material can be electrified to heat at the second time. The heating layer 130 and the functional layer 120 of the flexible functional panel are combined with each other by the arrangement, so that the space occupied by the flexible functional panel is saved to reduce the thickness of the flexible functional panel in the embodiment of the disclosure, and the heating layer 130 and the functional layer 120 are combined by the arrangement mode, so that the manufacturing cost of the flexible functional panel in the embodiment of the disclosure can be reduced.
Taking the functional electrode as the touch control electrode for example, the conductive heating material cooperates with the functional electrode of the functional layer 120 to perform the predetermined function at the first time, including sensing the external touch on the flexible functional panel to generate the touch control signal, thereby implementing the touch control operation function of the flexible functional panel.
In general, the functional electrode of the functional layer 120 transmits a touch signal through the signal line lead 140. When the conductive heating material is matched with the functional electrode of the functional layer 120 to perform a preset function at a first time, the conductive heating material also needs to transmit a touch signal through the signal line lead 140. At the second time, the conductive heating material is electrified to generate heat, and the conductive heating material transmits current through the signal wire lead 140 to realize electrification. Since a current loop needs to be formed when the conductive heating material heats at the second time, one end of the conductive heating material is usually connected to the signal line lead 140, and the other end of the conductive heating material is connected to the external trace 170, so that the conductive heating material can generate heat when the signal line lead 140 and the external trace 170 are both connected.
Optionally, the conductive heating material includes a plurality of electrodes, and the plurality of electrodes of the conductive heating material and the plurality of touch electrodes are alternately arranged.
The electrodes of the conductive heating material are not contacted with the touch electrodes, and the shapes and sizes of the touch electrodes and the electrodes of the conductive heating material are matched with each other. The shapes and sizes of the touch electrode and the electrode of the conductive heating material are not particularly limited, as long as the touch signal can be generated by sensing the touch of the external world on the flexible functional panel.
For example, as shown in fig. 13, both ends of the plurality of electrodes of the conductive heat generating material are respectively connected to the signal line lead 140 and the external trace 170. As shown in fig. 12, the touch electrode and the plurality of electrodes of the conductive heating material are both in a strip shape and are arranged in parallel and at an interval, wherein the touch electrode is connected to the signal line lead 140. At the first time, the external trace 170 connected with the conductive heating material is disconnected, and a capacitance is formed by the touch electrode and the plurality of electrodes of the conductive heating material, so that the touch of the external to the flexible functional panel is sensed and a touch signal is generated, and the touch signal is transmitted through the signal line lead 140. At the second time, the external trace 170 connected with the conductive heating material is connected, and the conductive heating material forms a loop through the signal line lead 140 and the external trace 170, so as to generate heat to eliminate the bending deformation of the flexible functional panel. Of course, in practical applications, as shown in fig. 15, the touch electrode and the plurality of electrodes of the conductive heating material may also be arranged in a mutually parallel rectangular structure formed by combining right triangles, and the like.
Optionally, the thermal power of the electrically conductive heat-generating material is greater than the thermal power of the layer of electrically conductive material.
The thermal power of the conductive heating material is greater than that of the conductive material layer, so that the conductive heating material can generate relatively more heat at the second time, and the rate of eliminating the bending deformation or the curling and shaping of the flexible functional panel is increased. Moreover, the thermal power of the conductive material layer is lower than that of the conductive heating material, so that the touch sensing sensitivity of the flexible functional panel disclosed by the embodiment of the disclosure can be improved, and the user experience is improved.
Optionally, the flexible functional panel includes a functional area and a non-functional area surrounding the functional area, and the heat generating layer 130 is located at the non-functional area.
The heat-generating layer 130 in the non-functional area may be configured as a plurality of different heat-generating patterns according to specific situations.
For example, as shown in fig. 2 and 3, the heat-generating pattern of the heat-generating layer 130 may be configured as a surface layer heat-generating pattern, i.e., the entire heat-generating pattern is a complete surface layer without a hollow portion. Of course, in the embodiment of the present disclosure, the heat-generating pattern may also be a heat-generating pattern constituted by a linear loop or the like. For example, the linear loop is a single-path, double-path or multi-path linear loop, but in practical applications, the linear loop may be another linear loop such as a curved loop. Here, there is no limitation on whether the heat-generating pattern is a surface layer structure or a linear loop or other shapes, and when the heat-generating pattern is a linear loop, there is no limitation on whether the linear loop is a linear loop or a curved loop or other linear loops.
Illustratively, as shown in fig. 4, the heat generating layer 130 is located in a partial region of the non-functional region, and the heat generating layer 130 is two strip structures that are not connected to each other, and each strip structure forms a linear loop.
The above examples are only a few possible ways proposed in the embodiments of the present disclosure, and in practical applications, the heat generating layer 130 disposed in the non-functional area may also be disposed in other ways, which are not limited herein, as long as the heat generating layer 130 can provide effective heating for the flexible functional panel.
The heat generating layer 130 is disposed in the non-functional area, so that the heat generating pattern of the heat generating layer 130 can be prevented from affecting the normal use of the functional layer 120 in the functional area. Also, as the heat generated by the energization of the heat generating layer 130 is conducted from the edge to the center, the functional layer 120 of the functional region can be heated to eliminate the bending stress and correct the bending state.
Alternatively, the shape of the heat generating layer 130 in the non-functional region includes at least one of a closed loop shape connected end to end, a strip shape disposed on two opposite sides, respectively, and a zigzag shape disposed on three adjacent sides.
For example, as shown in fig. 2 and 5, taking the display panel for a tablet computer as an example, the functional region is rectangular, and correspondingly, the non-functional region surrounding the functional region is rectangular ring-shaped. The heating layer 130 is disposed in the non-functional region in a "U" shape, that is, a zigzag shape in which adjacent three sides are connected, as long as it is located on any three adjacent sides of the rectangular ring shape. For another example, the heat generating layer 130 may also be composed of two "L" -shaped linear loop heat generating patterns, or the heat generating layer 130 is disposed on two opposite sides of the rectangular ring-shaped non-functional region, or the heat generating layer 130 is disposed along four sides of the rectangular ring shape.
The heat generating layer 130 is connected end to end in a closed ring shape in the non-functional area, so that the heat generating layer 130 can uniformly transfer heat to the flexible substrate 110 from each position of the edge of the flexible substrate 110, the flexible substrate 110 can be uniformly heated, and the elimination of bending deformation or curling and shaping of the flexible substrate 110 is accelerated. For another example, the strip structures respectively disposed on two opposite sides of the functional region are correspondingly disposed in the non-functional region, and the heat-generating pattern formed by the heat-generating layer 130 is a linear loop. Alternatively, the heat generating layer 130 may also be a zigzag structure connected to three adjacent sides of the functional region, and correspondingly disposed in the non-functional region.
Alternatively, the organic light emitting display layer includes a display region and a non-display region surrounding the display region on the flexible substrate 110, as shown in fig. 12 and 15, the heat generating layer 130 includes a conductive heat generating pattern disposed in the display region, and the conductive heat generating pattern is a transparent material.
It should be noted that the heat-generating layer 130 includes a conductive heat-generating pattern disposed in the display area, that is, the heat-generating layer 130 completely covers the flexible substrate 110, and the heat-generating layer 130 in the display area is a conductive heat-generating pattern, and the conductive heat-generating pattern is made of a transparent material.
The layer 130 that generates heat is including setting up the electrically conductive pattern that generates heat at the display area, and the electrically conductive pattern that generates heat is transparent material to the messenger generates heat layer 130 and can be located the part simultaneous heating of display area and non-display area respectively for flexible substrate 110, improves the heating rate of layer 130 that generates heat to flexible substrate 110, and in addition, transparent material's electrically conductive pattern that generates heat can not cause the influence to display panel display area's demonstration, has guaranteed display panel's display effect.
Optionally, the conductive heat emitting pattern includes at least one of a surface layer pattern covering the display area, a linear loop pattern arranged in an array, and a curved loop pattern arranged in an array.
Illustratively, the conductive heat emitting pattern disposed in the display area is a surface layer pattern covering the display area. A portion of the flexible substrate 110 located at the display area can be completely uniformly covered and heated by the conductive heat emitting pattern (not shown in the drawings).
Alternatively, as shown in fig. 13, the heat generating layer 130 is powered through the external trace 170. As shown in fig. 14, the external trace 170 is isolated from the signal wire lead 140 of the organic light emitting display layer in the non-display region by the insulating and heat conducting layer 150.
The external trace 170 is disposed in the non-display region, so that the external trace 170 does not affect the normal operation of the flexible functional panel. The external trace 170 and the signal wire lead 140 are isolated by the insulating and heat conducting layer 150, and the occurrence of short circuit and other adverse conditions caused by conduction between the external trace 170 and the signal wire lead 140 can be avoided.
Optionally, as shown in fig. 8, an insulating heat conducting layer 160 is further disposed on the heat generating layer 130, and the insulating heat conducting layer 160 covers the heat generating layer 130.
It should be noted that both the insulating and heat conducting layer 160 and the insulating and heat conducting layer 150 can be coated with materials with relatively good heat conducting property, such as silicon oxide and silicon nitride.
Illustratively, the heat generating layer 130 is disposed on the functional layer 120, and the insulating and heat conducting layer 160 covers the heat generating layer 130. Of course, in the embodiment of the present disclosure, the heat generating layer 130 may also be disposed on the flexible substrate 110 or other film layer structures disposed on the flexible substrate 110, and is not limited herein.
By arranging the insulating heat conduction layer 160 covering the heat generating layer 130, the heat generated by the heat generating layer 130 can be more uniformly distributed in the flexible functional panel by the insulating heat conduction layer 160, so that the rate of eliminating the bending deformation or the curling and shaping of the flexible functional panel through heating is improved.
Alternatively, as shown in fig. 6 and 7, the heat generating layer 130 is bonded to an adjacent level by an adhesive layer 180.
Note that, when the heat generating layer 130 is bonded to adjacent layers by the adhesive layer 180, typically, when the flexible functional panel includes a plurality of functional layers 120, another functional layer 120 connected to the heat generating layer 130, the flexible substrate 110, or other layered structure is used.
In another aspect of the disclosed embodiments, there is provided a flexible device comprising the flexible functional panel of any one of the above.
It should be noted that the flexible functional panel provided in the flexible device has the same beneficial effects as the flexible functional panel in the foregoing embodiment. Since the structure of the flexible functional panel has been described in detail in the foregoing embodiments, it is not described herein again.
It should be noted that, in the embodiment of the present disclosure, the flexible device is applied to a flexible display function, and may include at least an organic light emitting diode display device, for example, the flexible device may be any product or component having a flexible display function, such as a flexible display, a flexible digital photo frame, a flexible mobile phone, or a flexible tablet computer.
The flexible device provided by the embodiment of the disclosure adopts the flexible functional panel, and can reduce the occurrence of bending deformation or curling and shaping caused by long-term use or long-term bending.
The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.
In summary, the present disclosure provides a flexible functional panel and a flexible device, in which a functional layer 120 for implementing a corresponding function is disposed on a flexible substrate 110, and a heat generating layer 130 is further disposed, and the heat generating layer 130 can generate heat in an energized state. The flexible functional panel can be heated by the heat generation layer 130, and the bending deformation or the curling shape of the flexible substrate 110 gradually disappears due to the rise of heat, so that the bending deformation or the curling shape of the flexible substrate 110 caused by long-term use or long-term bending is eliminated, the occurrence of the bending deformation or the curling shape caused by long-term use or long-term bending is reduced, and the flexible functional panel can be widely applied to the fields of display technology, touch technology and the like.
Claims (18)
- A flexible functional panel, comprising:the flexible substrate, set up functional layer and the layer that generates heat on the flexible substrate, the layer that generates heat is used for generating heat under the circular telegram state.
- The flexible functional panel according to claim 1, wherein the heat generating layer drives the flexible functional panel to return to a flat state when generating heat.
- A flexible functional panel according to claim 1 or 2, characterized in that the heat generating layer is arranged in contact with the flexible substrate.
- The flexible functional panel according to claim 1 or 2, wherein the heat generating layer is disposed on the functional layer with an insulating and heat conducting layer disposed therebetween.
- The flexible functional panel according to any one of claims 1 to 4, wherein the heat generating layer comprises a conductive heat generating material disposed in a same layer as the conductive material layer of the functional layer.
- The flexible functional panel according to claim 5, wherein the conductive heat generating material is provided around the outer periphery of the conductive material layer.
- The flexible functional panel according to any one of claims 1 to 6, wherein the functional layer comprises an organic light emitting display layer.
- The flexible functional panel according to claim 5, wherein the conductive material layer of the functional layer includes a plurality of functional electrodes, the conductive heat-generating material performs a predetermined function in cooperation with the functional electrodes of the functional layer at a first time, and the conductive heat-generating material generates heat by being energized at a second time.
- The flexible functional panel according to claim 8, wherein the functional electrodes are touch electrodes, and the conductive heat generating material cooperates with the functional electrodes of the functional layer at a first time to perform a predetermined function including sensing an external touch on the flexible functional panel to generate a touch signal.
- The flexible functional panel according to claim 9, wherein the conductive heat-generating material comprises a plurality of electrodes, and the plurality of electrodes of the conductive heat-generating material and the plurality of touch electrodes are alternately arranged.
- The flexible functional panel according to any one of claims 5-10, wherein the thermal power of the electrically conductive heat emitting material is greater than the thermal power of the layer of electrically conductive material.
- A flexible functional panel according to any one of claims 7-11, comprising a functional area and a non-functional area surrounding the functional area, wherein the heat generating layer is located in the non-functional area.
- The flexible functional panel according to claim 12, wherein the shape of the heat generating layer in the non-functional region includes at least one of a closed loop shape connected end to end, a bar shape provided on opposite sides respectively, and a zigzag shape provided on adjacent three sides.
- The flexible functional panel according to claim 13, wherein the organic light emitting display layer comprises a display region and a non-display region surrounding the display region on the flexible substrate, the heat generating layer comprises a conductive heat generating pattern disposed in the display region, the conductive heat generating pattern is made of a transparent material, and the conductive heat generating pattern comprises at least one of a surface layer pattern covering the display region, a linear loop pattern disposed in an array, and a curved loop pattern disposed in an array.
- The flexible functional panel according to claim 13 or 14, wherein the heat generating layer is powered by external traces, and the external traces are isolated from the signal wire leads of the organic light emitting display layer in the non-display region by an insulating heat conductive layer.
- The flexible functional panel according to any one of claims 1 to 15, wherein an insulating and heat conducting layer is further provided on the heat generating layer, the insulating and heat conducting layer covering the heat generating layer.
- A flexible functional panel according to any one of claims 1 to 16, characterized in that the heat generating layer is bonded to an adjacent level by means of an adhesive layer.
- A flexible device comprising a flexible functional panel according to any one of claims 1 to 17.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2019/075097 WO2020164057A1 (en) | 2019-02-14 | 2019-02-14 | Flexible functional panel and flexible apparatus |
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| CN113261102A true CN113261102A (en) | 2021-08-13 |
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| CN201980073488.1A Pending CN113261102A (en) | 2019-02-14 | 2019-02-14 | Flexible functional panel and flexible device |
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| WO (1) | WO2020164057A1 (en) |
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| US10573667B2 (en) * | 2015-12-11 | 2020-02-25 | Semiconductor Energy Laboratory Co., Ltd. | Display device |
| CN205303466U (en) * | 2016-01-15 | 2016-06-08 | 京东方科技集团股份有限公司 | Flexible display base plate, display device |
| CN106601756B (en) * | 2017-02-21 | 2019-10-15 | 京东方科技集团股份有限公司 | A kind of flexible substrates, flexible display substrates and display device |
| CN207766575U (en) * | 2017-04-28 | 2018-08-24 | 阚晓敏 | A kind of fever tablet with flexibility function |
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- 2019-02-14 CN CN201980073488.1A patent/CN113261102A/en active Pending
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| CN105432157A (en) * | 2013-05-29 | 2016-03-23 | 黃昌淳 | Bendable electronic device |
| EP3013119A1 (en) * | 2014-10-24 | 2016-04-27 | Centre National De La Recherche Scientifique | Transparent heating device with graphene film |
| US20160145138A1 (en) * | 2014-11-26 | 2016-05-26 | Samsung Display Co., Ltd. | Manufacturing method of curved display device |
| CN107204343A (en) * | 2017-04-25 | 2017-09-26 | 上海天马微电子有限公司 | Flexible display and forming method thereof |
| US20180375055A1 (en) * | 2017-06-26 | 2018-12-27 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Heat radiation structure for organic light-emitting device and display apparatus |
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