CN209843113U - Flexible display unit and device capable of displaying picture - Google Patents
Flexible display unit and device capable of displaying picture Download PDFInfo
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- CN209843113U CN209843113U CN201920742229.0U CN201920742229U CN209843113U CN 209843113 U CN209843113 U CN 209843113U CN 201920742229 U CN201920742229 U CN 201920742229U CN 209843113 U CN209843113 U CN 209843113U
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Abstract
The utility model provides a flexible display unit and can show device of picture. The utility model provides a flexible display unit, including the first extension and the second extension of buckling relatively, the tip of first extension and the end connection of second extension, the second extension has the display area, is provided with the reinforced membrane on the first extension, and the reinforced membrane covers the non-bending region of first extension. The utility model discloses a flexible display unit can prevent that first extension from taking place to tear or the fracture condition, ensures the structural integrity of first extension, guarantees the normal stable work of flexible display unit.
Description
Technical Field
The utility model relates to a show technical field, especially relate to a flexible display unit and can show device of picture.
Background
The flexible display is a display device which is made of a flexible material and can be deformed and bent, the flexible display realizes display through an Organic Light Emitting Diode (OLED), and the flexible display has the advantages of simple preparation process, high Light Emitting efficiency, high contrast, low power consumption, good flexibility, foldability and the like, and is concerned in recent years. The flexible display module in the prior art mainly comprises a substrate and functional materials such as an OLED module, a polarizer, a touch panel and a protective film which are sequentially overlapped on the substrate. In order to provide certain stiffness for the flexible display module, the lower surface of the substrate is attached with a support film to prevent the substrate from warping and the like, and foam below the support film plays a role in buffering the module. Meanwhile, in order to avoid the influence of the local temperature on the performance of the display module, the graphite sheet is usually attached to the lower part of the foam to play a role in heat dissipation.
With the continuous development of flexible display technology, flexible displays have been gradually applied to various electronic devices, particularly mobile phone devices, and in order to achieve a comprehensive display effect and a side display effect, the bonding end of the flexible display extends out and is folded over to be attached to an area on the back of the screen body.
However, the bonding end of the flexible display is generally thin, and the circuit traces are distributed in the area of the bonding end, which is prone to break under the external pulling force, and thus the flexible display fails.
SUMMERY OF THE UTILITY MODEL
The utility model provides a flexible display unit and can show picture's device can prevent that flexible display nation from deciding the end and appearing tearing, the condition of broken string.
In one aspect, the present invention provides a flexible display unit, which includes a first extending portion and a second extending portion that can be bent relatively, wherein the end portion of the first extending portion is connected to the end portion of the second extending portion, the second extending portion has a display area, and a non-bending region of the first extending portion is covered by a reinforcing film on the first extending portion.
In one possible embodiment, the reinforcing film is formed by laminating at least two functional layers, and the functional layers comprise a flexible structure layer and an adhesive layer, wherein the flexible structure layer and the adhesive layer are alternately laminated.
In one possible embodiment, the number of functional layers of the reinforcing film is from 2 to 5.
In one possible embodiment, the layer thickness of the individual functional layers of the reinforcing film is between 0.01 and 0.05 mm.
In one possible embodiment, the flexible structure layer is a polyethylene terephthalate PET layer or a polyimide PI layer.
In one possible embodiment, the adhesive layer is formed by an adhesive applied to the surface of the flexible structure layer; or the bonding layer comprises a substrate layer and a glue layer adhered between the substrate layer and the flexible structural layer.
In a possible embodiment, the edges of the reinforcing film are located outside the corresponding edges of the non-bent region of the first extension.
In a possible embodiment, the spacing between an edge of the reinforcement film and a corresponding edge of the non-bent region of the first extension is between 0.1 and 0.5 mm.
In one possible embodiment, the covering region of the reinforcing film and the bending region of the first extension portion do not overlap with each other.
On the other hand, the utility model provides a device that can show picture, including as above-mentioned flexible display unit.
The utility model provides a flexible display unit and can display device of picture, flexible display unit includes first extension and second extension, interconnect between the tip of first extension and the tip of second extension, but buckle relatively between first extension and the second extension, through the display area display screen of second extension, through the regional enhancement film that sets up of the non-bending at first extension, can be when first extension buckles for the second extension, the condition of tearing can not take place for the first extension of protection. The arrangement of the reinforcing film can support and protect the first extension part and increase the strength of the first extension part, so that the first extension part is prevented from being torn or broken, and the connection stability of the first extension part and the second extension part is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a partial structural schematic diagram of a conventional flexible display;
FIG. 2 is a schematic diagram of another partial structure of a conventional flexible display;
fig. 3 is a schematic partial structure diagram of a flexible display unit according to an embodiment of the present invention;
fig. 4 is a schematic cross-sectional view of a reinforcing film according to an embodiment of the present invention.
Description of reference numerals:
100-a flexible display; 110-bonding end; 120-screen body; 200-a flexible display unit; 210-a first extension; 211-non-bent region; 212-a bending region; 230-a reinforcing film; 231-a functional layer; 2311-a flexible structural layer; 2312-an adhesive layer; 220-second extension.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
With the continuous development of flexible display technology, flexible displays have been gradually applied to various electronic devices, especially to mobile phone devices. Fig. 1 is a partial structural schematic diagram of a conventional flexible display. Fig. 2 is a schematic view of another partial structure of a conventional flexible display. As shown in fig. 1 and fig. 2, in order to achieve the full display effect and the side display effect, the bonding end 110 of the flexible display 100 usually extends out of the edge of the screen body 120 and is folded to the back of the screen body 120, and the front and the side of the flexible display 100 have display areas by bonding the bonding end 110 of the flexible display 100 to the back of the screen body 120, so as to achieve the full display and the side display effect.
The bonding end 110 of the Flexible display 100 is often thin, and a Flexible Printed Circuit (FPC) is usually disposed on the bonding end 110, so that the driver chip is connected to the Circuit traces in the screen body 120 of the Flexible display 100 through the FPC, so that the driver chip can provide electrical signals to the various Circuit traces in the screen body 120. When the bonding end 110 is bent relative to the screen body 120, the circuit traces distributed in the bending area of the bonding end 110 may be subjected to a pulling force from the middle to the two sides due to bending, and when an acting force is too large, the circuit traces may be broken, which may further cause the circuit of the flexible display 100 to fail, so that the flexible display 100 cannot normally display a picture; moreover, the force generated during bending may also cause the bonding end 110 to tear at the bending region, which may damage the integrity of the bonding end 110, and in severe cases, may cause the flexible display 100 to fail to work properly.
Therefore, the embodiment of the utility model provides a flexible display unit and can show device of picture to prevent that flexible display's nation decides to hold when relative screen body is buckled, can not take place the circuit and walk the tearing phenomenon of line fracture and nation end, guarantee nation decides to hold and screen body coupling's stability and nation decides the structural integrity of end, in order to guarantee that flexible display can normally work.
Example one
Fig. 3 is a schematic view of a partial structure of a flexible display unit according to an embodiment of the present invention. Fig. 4 is a schematic cross-sectional view of a reinforcing film according to an embodiment of the present invention. As shown in fig. 3, the present embodiment provides a flexible display unit 200, the flexible display unit 200 includes a first extension portion 210 and a second extension portion 220 that can be bent relatively, an end of the first extension portion 210 is connected to an end of the second extension portion 220, the second extension portion 220 has a display area, and a reinforcing film 230 is disposed on the first extension portion 210, and the reinforcing film 230 covers a non-bending region 211 of the first extension portion 210.
The flexible display unit 200 provided by this embodiment is composed of a first extension portion 210 and a second extension portion 220, an end portion of the first extension portion 210 and an end portion of the second extension portion 220 are connected to form a whole, and the first extension portion 210 and the second extension portion 220 can be bent relatively, the second extension portion 220 has a display area, and the area occupied by the display area on the second extension portion 220 can be enlarged by bending the first extension portion 210 relative to the second extension portion 220, so that the effect that the entire area of the second extension portion 220 is the display area can be realized.
Specifically, the flexible display unit 200 of this embodiment may be applied to various electronic devices, taking an electronic device as a mobile phone device as an example, the second extension portion 220 may be a mobile phone display screen, the first extension portion 210 may be bound to an end portion of the mobile phone display screen, and the first extension portion 210 is bent to a back side of the mobile phone display screen, so that a display blocking component may not be disposed on a front side of the mobile phone display screen, and thus, a whole area of the front side of the mobile phone display screen may be a display area, thereby achieving a full screen display effect of the mobile phone display screen; or, the first extension portion 210 is bonded to the side of the mobile phone display screen, so that the first extension portion 210 can be bent from the side of the mobile phone display screen to the back of the mobile phone display screen, and thus the side of the mobile phone display screen has a display area, and a side display effect of the mobile phone display screen is achieved.
A plurality of circuit traces are generally distributed on the second extension portion 220 having the display area, the first extension portion 210 is generally provided with an FPC, and the circuit traces distributed on the second extension portion 220 are connected with the driving chip through the FPC, so that the electric signal is provided to the second extension portion 220 through the electric connection of the driving chip and the second extension portion 220, and the display area of the second extension portion 220 can normally display the picture. When the first extending portion 210 is bent relative to the second extending portion 220, the circuit traces distributed in the bending region 212 are elongated from the middle to the two ends due to the acting force generated during bending, and if the bending amplitude is too large, the circuit traces may be broken due to too large pulling force, or the first extending portion 210 may be torn in the bending region 212, which may both cause the circuit between the driving chip and the second extending portion 220 to be broken, so that the second extending portion 220 cannot normally display the picture.
As shown in fig. 3, in the present embodiment, the reinforcing film 230 is disposed on the first extending portion 210, so that the reinforcing film 230 can prevent the circuit trace between the first extending portion 210 and the second extending portion 220 from being broken, and can also prevent the first extending portion 210 from being torn. Specifically, the reinforcing film 230 covers the non-bending region 211 of the first extending portion 210, and the side of the second extending portion 220 where the display area is disposed is the front side of the second extending portion 220, so that when the first extending portion 210 is bent to the back side of the second extending portion 220, the reinforcing film 230 can face the back side of the second extending portion 220.
On one hand, since the reinforcing film 230 has a certain thickness, the reinforcing film 230 located between the back surfaces of the first extension portion 210 and the second extension portion 220 can reduce the bending amplitude of the first extension portion 210 relative to the second extension portion 220, so as to reduce the acting force between the first extension portion 210 and the second extension portion 220 generated by bending, thereby preventing the circuit trace between the first extension portion 210 and the second extension portion 220 from being broken, preventing the first extension portion 210 from being torn, and protecting the integrity of the first extension portion 210; on the other hand, since the reinforcing film 230 is disposed at the non-bending region 211 of the first extension portion 210, the reinforcing film 230 may increase the strength of the non-bending region 211 of the first extension portion 210, so as to increase the overall strength of the first extension portion 210, which may also protect the structural integrity of the first extension portion 210.
It should be noted that, in the embodiment, the reinforcing film 230 is disposed in the non-bending region 211 of the first extending portion 210, not only the bending range of the first extending portion 210 relative to the second extending portion 220 can be reduced by the thickness of the reinforcing film 230, but also the edge height of the second extending portion 220 of the bending region 212 is not increased by the reinforcing film 230, so that the bending range is not increased due to the increase of the edge height of the second extending portion 220, the increase of the bending range due to the reinforcing film 230 disposed in the bending region 212 is avoided, and the acting force generated during bending is increased, so that the possibility of the circuit trace breaking between the first extending portion 210 and the second extending portion 220 and the tearing phenomenon of the first extending portion 210 are increased. Taking the second extension 220 as the display screen of the mobile phone as an example, the reinforcing film 230 does not cover the side edge or the end surfaces of the upper and lower ends of the display screen of the mobile phone, so that the protruding height of the side edge or the end surface of the display screen of the mobile phone towards the bending region 212 of the first extension 210 is not increased, and the bending amplitude of the first extension 210 is not increased.
As an alternative embodiment, as shown in fig. 4, the reinforcing film 230 of the present embodiment may have a structure including a plurality of functional layers. Specifically, the reinforcing film 230 may be formed by stacking at least two functional layers 231 one on another, that is, the thickness of the reinforcing film 230 depends on the thickness of the single functional layer 231 and the number of stacked functional layers 231. The functional layer 231 includes a flexible structure layer 2311 and an adhesive layer 2312, and the flexible structure layer 2311 and the adhesive layer 2312 are alternately stacked, so that a plurality of flexible structure layers 2311 and a plurality of adhesive layers 2312 are alternately stacked to form the reinforcing film 230. The flexible structural layer 2311 and the adhesive layer 2312 may have different properties, and an integral reinforcing film 230 may be formed by alternately stacking the flexible structural layer 2311 and the adhesive layer 2312, and the flexible structural layer 2311 and the adhesive layer 2312 should have a sufficient connection strength therebetween to ensure the integrity and strength of the reinforcing film 230. In addition, since the flexible structure layer 2311 and the adhesive layer 2312 both have a certain thickness, the reinforcing film 230 can meet different bending radii requirements of the first extension portion 210 relative to the second extension portion 220 by adjusting the number of the stacked flexible structure layer 2311 and the adhesive layer 2312.
In addition, the reinforcing film 230 having a certain thickness is formed by disposing a plurality of flexible structure layers 2311 and adhesive layers 2312 which are alternately stacked, and the formed reinforcing film 230 can play a role of heat insulation, so that heat transfer between the first extension portion 210 and the second extension portion 220 is reduced, and thus, the service life of the first extension portion 210 and the second extension portion 220 can be prolonged.
In the laminated structure of the reinforcing film 230 formed of the plurality of functional layers 231, the flexible structure layer 2311 and the adhesive layer 2312 respectively play different roles. The flexible structure layer 2311 may be a main structure of the reinforcing film 230, after the first extension portion 210 is bent to the back side of the second extension portion 220, the flexible structure layer 2311 mainly plays a supporting role, the flexible structure layer 2311 is supported between the first extension portion 210 and the second extension portion 220, relative stability between the first extension portion 210 and the second extension portion 220 is ensured, structural integrity of the first extension portion 210 is also protected through the supporting role of the flexible structure layer 2311, and the first extension portion 210 is prevented from being damaged due to external reasons.
And the adhesive layer 2312 serves primarily to join the flexible structural layer 2311. For the reinforced film 230 formed by stacking the functional layers 231, the adhesive layer 2312 is connected between the two adjacent flexible structure layers 2311 to realize the fixed connection of the two flexible structure layers 2311 through the adhesive effect of the adhesive layer 2312, so that the adhesive layer 2312 is arranged between the two adjacent flexible structure layers 2311, and the multiple flexible structure layers 2311 form the integral reinforced film 230 through the adhesive layer 2312.
It should be noted that the flexible structure layer 2311 may be made of a relatively flexible material, so that the reinforcing film 230 formed by the multiple flexible structure layers 2311 fixedly connected by the adhesive layer 2312 is relatively flexible, and the reinforcing film 230 may support and may not damage the first extending portion 210 and the second extending portion 220.
The multi-layer flexible structure layer 2311 forms the reinforcing film 230 through the adhesive layer 2312, the reinforcing film 230 with a certain thickness is supported between the first extending portion 210 and the second extending portion 220, the bending amplitude of the first extending portion 210 relative to the second extending portion 220 can be reduced, the circuit trace between the first extending portion 210 and the second extending portion 220 is prevented from being broken, and the first extending portion 210 is prevented from being torn. The thickness of the single-layer flexible structure layer 2311 and the adhesive layer 2312, and the number of the flexible structure layer 2311 and the adhesive layer 2312 may be set according to the thickness of the reinforcing film 230 required by the flexible display unit 200, which is not particularly limited in this embodiment.
Specifically, the number of functional layers 231 of the reinforcing film 230 may be 2 to 5. Generally, the flexible display unit 200 has a smaller structural thickness, and for the case that the first extending portion 210 is connected to the side edge or both ends of the second extending portion 220, the first extending portion 210 is bent to the back surface of the second extending portion 220, and the thickness of the side edge or the end of the second extending portion 220 is generally smaller, so that the thickness of the reinforcing film 230 between the first extending portion 210 and the back surface of the second extending portion 220 is also generally smaller, the reinforcing film 230 with the smaller thickness can be supported between the first extending portion 210 and the second extending portion 220, and the thickness of the reinforcing film 230 is sufficient to reduce the bending amplitude of the first extending portion 210, so as to ensure that the circuit traces between the first extending portion 210 and the second extending portion 220 are not broken and ensure that the first extending portion 210 is not torn.
Because the thickness of the reinforced film 230 is small, a small number of functional layers 231 can be provided to form the reinforced film 230, the number of functional layers 231 is preferably 2-5, and taking the number of functional layers 231 as two layers as an example, the two functional layers 231 can include a flexible structural layer 2311 and an adhesive layer 2312 which are stacked; for the functional layer 231 with three layers, two flexible structure layers 2311 may be provided, and an adhesive layer 2312 may be provided between the two flexible structure layers 2311, or two adhesive layers 2312 and one flexible structure layer 2312 located between the two adhesive layers 2312 may be provided; similarly, for the functional layer 231 with four layers, two flexible structure layers 2311 and two adhesive layers 2312 may be alternately stacked; as for the functional layer 231 having five layers, there may be three flexible structure layers 2311 and two adhesive layers 2312, or three adhesive layers 2312 and two flexible structure layers 2311.
Here, the functional layer 231 may be provided as an odd number of layers, and the adhesive layers 2312 may be positioned at outermost sides of both sides of the multi-layered functional layer 231, such that the adhesive layers 2312 may not only fixedly connect the adjacent flexible structure layers 2311, but also the outermost adhesive layers 2312 may be respectively connected with the first extension portion 210 and the second extension portion 220, such that the reinforcing film 230 may be fixed between the first extension portion 210 and the second extension portion 220 by the adhesive layers 2312, and the adhesive layers 2312 at both sides may fix the relative positions of the first extension portion 210 and the second extension portion 220.
In particular, the layer thickness of the single functional layer 231 (i.e., the flexible structural layer 2311 or the adhesive layer 2312) of the reinforcing film 230 may be between 0.01 and 0.05 mm. As described above, since the second extension part 220 has a small structural thickness and the first extension part 210 is bent in the thickness direction of the second extension part 220, the total thickness of the reinforcement film 230 supported between the first extension part 210 and the second extension part 220 is also small, and thus the layer thickness of the single functional layer 231 of the reinforcement film 230 may be set within a range of 0.01 to 0.05mm, so that the thickness of the reinforcement film 230 formed after the plurality of functional layers 231 are laminated is small. The layer thickness of the single functional layer 231 may be 0.02mm, 0.03mm, 0.04mm, or other values within the above range, but the embodiment is not limited thereto.
Alternatively, the flexible structure layer 2311 may be a Polyethylene terephthalate (PET) layer or a Polyimide (PI) layer. PET has excellent physical and mechanical properties in a wide temperature range, the long-term use temperature can reach 120 ℃, the electrical insulation property is excellent, and the creep resistance, the fatigue resistance, the friction resistance and the dimensional stability of the PET are good; the PI has high temperature resistance of more than 400 ℃, the long-term use temperature range of-200-300 ℃, and good insulating property and mechanical property. The flexible display unit 200 generates heat in the working process, and the heat resistance and the mechanical property of the PET layer and the PI layer are good, so that the service temperatures of the PET layer and the PI layer meet the working requirements of the flexible display unit 200, and the PET layer or the PI layer can be adopted as the flexible structure layer 2311.
In addition, the flexible structure layer 2311 may be made of other materials with good heat resistance and mechanical properties, and the embodiment is not limited as long as the use requirement of the reinforcing film 230 can be met.
Alternatively, the adhesive layer 2312 may be formed of an adhesive applied to the surface of the flexible structure layer. The adhesive layer 2312 may be formed of a fluid adhesive, and the adhesive layer 2312 may be formed by uniformly applying the adhesive to the surface of the flexible structure layer 2311, and the adhesive applied to the surface of the flexible structure layer 2311 may fixedly bond the adjacent flexible structure layers 2311, so that the reinforcing film 230 may be formed by applying the adhesive between the adjacent two layers of the multi-layer flexible structure layer 2311; for example, the adhesive may be glue, and the adjacent flexible structure layers 2311 are fixedly connected by the adhesion of the glue.
Alternatively, the adhesive layer 2312 includes a substrate layer and an adhesive layer adhered between the substrate layer and the flexible structural layer 2311. The adhesive layer 2312 can also consist of a substrate layer and an adhesive layer, the adhesive layer is arranged on the substrate layer, and the flexible structural layer 2311 is adhered to the adhesive layer, so that the adhesive layer 2312 and the flexible structural layer 2311 are fixedly connected; adhesive layers may be disposed on both side surfaces of the substrate layer, such that the flexible structure layers 2311 on both sides of the adhesive layer 2312 may be fixedly connected to the adhesive layer 2312 through the adhesive layers, and for the case that the adhesive layer 2312 is adjacent to the first extension portion 210 or the second extension portion 220, one side adhesive layer of the adhesive layer 2312 may be connected to the flexible structure layer 2311, and the other side adhesive layer of the adhesive layer 2312 may be fixedly connected to the first extension portion 210 or the second extension portion 220, so that the reinforcing film 230 may be fixed between the first extension portion 210 and the second extension portion 220 through the adhesive layer 2312. For example, the adhesive layer 2312 may be a double-sided tape, and the flexible structure layers on both sides of the double-sided tape are adhered together by the double-sided tape.
In order to make the reinforcing film 230 sufficiently protect the first extension 210, the edge of the reinforcing film 230 may be located outside the corresponding edge of the non-bent region 211 of the first extension 210. As shown in fig. 3, the edge of the reinforcing film 230 is located outside the edge of the non-bending region 211 of the first extending portion 210, that is, the reinforcing film 230 can completely cover the first extending portion 210, so that the edge portion of the first extending portion 210 can also be protected by the reinforcing film 230, when the first extending portion 210 is deformed due to bending, the reinforcing film 230 supported on one side of the first extending portion 210 can increase the strength of the first extending portion 210, and the reinforcing film 230 completely covers the first extending portion 210, so that the reinforcing film 230 can also protect the edge of the first extending portion 210, and prevent the first extending portion 210 from being torn. By covering the reinforcing film 230 completely over the first extension portion 210, the reinforcing film 230 protects the whole of the first extension portion 210, and the integrity of the first extension portion 210 can be ensured.
In a specific embodiment, the spacing between an edge of the reinforcing film 230 and a corresponding edge of the non-bent region 211 of the first extension 210 may be between 0.1 and 0.5 mm. Taking the first extension portion 210 connected to one end of the second extension portion 220 as an example, the width of the first extension portion 210 should be smaller than the width of the second extension portion 220, so that the first extension portion 210 can be bent at the back of the second extension portion 220, and the edge of the first extension portion 210 does not extend out of the second extension portion 220. The width of the reinforcing film 230 is greater than that of the first extension portion 210, so that the reinforcing film 230 completely covers the first extension portion 210, and the width of the reinforcing film 230 is not too large, so that the reinforcing film 230 is greater than the second extension portion 220, and the reinforcing film 230 protrudes out of the second extension portion 220.
In order to make the width of the reinforcing film 230 greater than the width of the first extension portion 210 and at the same time make the width of the reinforcing film 230 smaller than the width of the second extension portion 220, the distance between the edge of the reinforcing film 230 and the corresponding edge of the non-bending region 211 of the first extension portion 210 is set to be 0.1-0.5mm, specifically 0.15mm, 0.25mm, 0.35mm, 0.45mm, and the like, which is not limited in this embodiment. In addition, for the flexible display units 200 with different sizes, the width difference between the first extension portion 210 and the second extension portion 220 may be different, and therefore, the distance between the edge of the reinforcing film 230 and the corresponding edge of the non-bending region 211 of the first extension portion 210 may also be set to be in other value ranges, which is not limited in this embodiment.
Optionally, the coverage area of the reinforcing film 230 and the bending area 212 of the first extension portion 210 do not overlap with each other. As described above, in order to enable the reinforcing film 230 to be supported between the first extension portion 210 and the second extension portion 220, the thickness of the reinforcing film 230 may reduce the bending amplitude of the first extension portion 210 relative to the second extension portion 220, and the reinforcing film 230 should be disposed in the non-bending region 211 of the first extension portion 210; if the end of the reinforcing film 230 extends into the bending region 212 of the first extending portion 210, the reinforcing film 230 may increase the height of the second extending portion 220 of the bending region 212 protruding toward the first extending portion 210, and further increase the bending amplitude of the first extending portion 210, which may aggravate the situation of the circuit trace breaking between the first extending portion 210 and the second extending portion 220 and the tearing of the first extending portion 210.
The flexible display unit provided by the embodiment comprises a first extension portion and a second extension portion, the end portion of the first extension portion is connected with the end portion of the second extension portion, the first extension portion and the second extension portion can be bent relatively, a picture is displayed through a display area of the second extension portion, and a reinforcing film is arranged in a non-bending area of the first extension portion, so that the first extension portion can be protected from being torn when the first extension portion is bent relative to the second extension portion. The arrangement of the reinforcing film can support and protect the first extension part and increase the strength of the first extension part, so that the first extension part is prevented from being torn or broken, and the connection stability of the first extension part and the second extension part is ensured.
Example two
The present embodiment provides a device capable of displaying a picture, which includes the flexible display unit according to the first embodiment. Specifically, the device that can show the picture can include shell, light source, flexible display unit and driver chip, and light source and flexible display unit all set up in the shell, provide light for flexible display unit through the light source, and flexible display unit is connected with driver chip electricity, and driver chip provides the signal of telecommunication for flexible display unit to make flexible display unit can normally show the picture. The structure, function and operation principle of the flexible display unit have been described in detail in the first embodiment, and are not described herein again.
In this embodiment, the device capable of displaying the screen at least includes a liquid crystal display device and an organic light emitting diode display device, and for example, the device capable of displaying the screen may be any product or component having a display function, such as a mobile phone, a tablet computer, a liquid crystal display, or a liquid crystal television.
The device capable of displaying the picture provided by the embodiment comprises a flexible display unit, wherein the flexible display unit comprises a first extending part and a second extending part, the end part of the first extending part and the end part of the second extending part are connected with each other, the first extending part and the second extending part can be bent relatively, the picture is displayed through a display area of the second extending part, and the first extending part is protected from being torn when being bent relative to the second extending part by arranging the reinforcing film in the non-bending area of the first extending part. The arrangement of the reinforcing film can support and protect the first extension part and increase the strength of the first extension part, so that the first extension part is prevented from being torn or broken, and the connection stability of the first extension part and the second extension part is ensured.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. The flexible display unit is characterized by comprising a first extending part and a second extending part which can be bent relatively, wherein the end part of the first extending part is connected with the end part of the second extending part, the second extending part is provided with a display area, a reinforcing film is arranged on the first extending part, and the reinforcing film covers the non-bending area of the first extending part.
2. The flexible display unit of claim 1, wherein the reinforcing film is formed by laminating at least two functional layers, and the plurality of functional layers comprise a flexible structure layer and an adhesive layer, and the flexible structure layer and the adhesive layer are alternately laminated.
3. The flexible display unit of claim 2, wherein the number of functional layers of the reinforcement film is 2-5.
4. A flexible display unit according to claim 2 or 3, wherein the layer thickness of the individual functional layers of the reinforcement film is between 0.01-0.05 mm.
5. The flexible display unit of claim 2 or 3, wherein the flexible structural layer is a polyethylene terephthalate (PET) layer or a Polyimide (PI) layer.
6. The flexible display unit of claim 2 or 3, wherein the adhesive layer is formed from an adhesive applied to a surface of the flexible structure layer; or, the bonding layer comprises a substrate layer and a glue layer adhered between the substrate layer and the flexible structural layer.
7. The flexible display unit of any of claims 1-3, wherein an edge of the reinforcement film is located outside a corresponding edge of the non-bent region of the first extension.
8. The flexible display unit of claim 7, wherein a spacing between an edge of the reinforcing film and a corresponding edge of the non-bent region of the first extension portion is between 0.1-0.5 mm.
9. The flexible display unit of any of claims 1-3, wherein a coverage area of the reinforcement film and a bending area of the first extension do not overlap each other.
10. An apparatus capable of displaying pictures, comprising the flexible display unit according to any one of claims 1 to 9.
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| CN201920742229.0U CN209843113U (en) | 2019-05-22 | 2019-05-22 | Flexible display unit and device capable of displaying picture |
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| CN201920742229.0U CN209843113U (en) | 2019-05-22 | 2019-05-22 | Flexible display unit and device capable of displaying picture |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021189550A1 (en) * | 2020-03-26 | 2021-09-30 | 武汉华星光电半导体显示技术有限公司 | Flexible display panel and display device |
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- 2019-05-22 CN CN201920742229.0U patent/CN209843113U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021189550A1 (en) * | 2020-03-26 | 2021-09-30 | 武汉华星光电半导体显示技术有限公司 | Flexible display panel and display device |
| US11515382B2 (en) | 2020-03-26 | 2022-11-29 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Flexible display panel and display device |
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