Display device

Abstract

The display device comprises a flexible display panel, a back shell, a first support, a chip on film, a circuit board and a fixing plate, the flexible display panel is arranged on one side of the back shell, the flexible display panel comprises opposite first and second ends and opposite light-emitting and back sides, the first support is movably connected with the flexible display panel, the first end of the flexible display panel is bent to the back side of the flexible display panel through the first support, the first support forms support for the flexible display panel in the bending area, one end of the chip on film is connected with the flexible display panel, the other end of the chip on film is connected with the circuit board, the fixing plate is arranged between the circuit board and the flexible display panel, one end of the fixing plate is fixedly connected with the first end of the flexible display panel, and the other end of the fixing plate is fixedly connected with the circuit board, the fixing plate is provided with a protruding portion, the protruding portion abuts against the back shell, and the height of the protruding portion between the fixing plate and the back shell is greater than the maximum thickness of the circuit board.

Description

Technical Field

[0001] This disclosure relates to the field of display technology, and more specifically, to a display device. Background Technology

[0002] With the development of display technology, users' requirements for the performance of display devices are gradually increasing. Flexible display devices are characterized by being bendable and rollable. By utilizing the flexibility of display devices, people can roll or fold them, which brings convenience to people carrying and using display devices. The sliding roll design, which combines folding and rolling, has an advantage in both appearance and practicality.

[0003] However, in order to achieve the sliding motion, realize a larger display area, and provide more layout space for electronic components, the printed circuit board and flip-chip film of the flexible display module are prone to problems such as poor display due to film layer misalignment and module warping during the double sliding motion.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0005] The purpose of this disclosure is to provide a display device that improves the reliability of the display device.

[0006] According to one aspect of the present disclosure, a display device is provided, the display device comprising:

[0007] Back shell;

[0008] A flexible display panel is disposed on one side of the back shell. The flexible display panel includes a first end and a second end opposite to each other, and a light-emitting side and a back-light side opposite to each other.

[0009] A first support member is movably connected to the flexible display panel. The first end of the flexible display panel is bent to the backlight side of the flexible display panel through the first support member. The first support member provides support for the flexible display panel in the bending area.

[0010] A flip-chip film, one end of which is connected to the flexible display panel;

[0011] A circuit board, wherein the circuit board is connected to the other end of the flip-chip film;

[0012] A fixing plate is located between the circuit board and the flexible display panel. One end of the fixing plate is fixedly connected to the first end of the flexible display panel, and the other end is fixedly connected to the circuit board. The fixing plate is provided with a protrusion that abuts against the back shell. The height of the protrusion between the fixing plate and the back shell is greater than the maximum thickness of the circuit board.

[0013] In one exemplary embodiment of this disclosure, the display device further includes:

[0014] The second support member is movably connected to the flexible display panel. The second end of the flexible display panel is bent to the backlight side of the flexible display panel through the second support member, and the second support member provides support for the flexible display panel in the bending area.

[0015] In one exemplary embodiment of this disclosure, the flexible display panel includes a display functional layer and a cover layer. The cover layer is located on the side of the display functional layer facing the light-emitting side. The cover layer extends from a first end of the flexible display panel to the circuit board and is connected to the circuit board. The flip-chip film is located between the cover layer and the fixing plate.

[0016] In one exemplary embodiment of this disclosure, the portion of the fixing plate corresponding to the flip-chip film is attached to the flip-chip film.

[0017] In one exemplary embodiment of this disclosure, a buffer is provided between the fixing plate and the flip-chip film.

[0018] In one exemplary embodiment of this disclosure, a plurality of buffer members are provided between the fixing plate and the flip-chip film, and the thickness of the plurality of buffer members increases in the direction of the circuit board near the flip-chip film.

[0019] In one exemplary embodiment of this disclosure, the fixing plate is provided with a limiting groove, and the circuit board is located in the limiting groove.

[0020] In one exemplary embodiment of this disclosure, the protrusion facing the end face that abuts against the back shell is an arc surface that protrudes toward one side of the back shell.

[0021] In one exemplary embodiment of this disclosure, the protrusion is located on the side of the circuit board away from the first end of the flexible display panel.

[0022] In one exemplary embodiment of this disclosure, a blocking portion is provided on one end of the fixing plate away from the flip-chip film, and the blocking portion is located on the side of the fixing plate facing the back shell.

[0023] The display device provided in this disclosure includes a first support member movably connected to a flexible display panel. The first end of the flexible display panel is bent to the backlight side via the first support member, which provides support for the flexible display panel in the bending area. When the flexible display panel moves relative to the first support member, the circuit board and the flip-chip film connected to the first end of the flexible display panel also move with the flexible display panel. Since the circuit board and the flip-chip film are mounted on a fixed plate, they are fixed, preventing excessive deformation of the flip-chip film during movement and thus avoiding display defects. Simultaneously, the fixed plate has a protrusion that abuts against the back shell. The height of the protrusion between the fixed plate and the back shell is greater than the maximum thickness of the circuit board. When the circuit board and the flip-chip film connected to the first end of the flexible display panel move with the flexible display panel, a gap is maintained between the electronic components on the circuit board and the flip-chip film and the back shell, preventing collision failure between the electronic components on the circuit board and the flip-chip film and the back shell, thereby improving the reliability of the display device.

[0024] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. In the drawings:

[0026] Figure 1 A schematic diagram of the light-emitting side of a display device provided in one embodiment of this disclosure;

[0027] Figure 2 A schematic diagram of the backlight side of a display device provided in one embodiment of this disclosure;

[0028] Figure 3 A cross-sectional view of a display device provided in one embodiment of this disclosure;

[0029] Figure 4 Provided as an embodiment of this disclosure Figure 3 Enlarged view of region A in the middle;

[0030] Figure 5 A schematic diagram of a fixing plate, a flexible display panel, a flip-chip film, and a circuit board provided in one embodiment of this disclosure;

[0031] Figure 6 A schematic diagram of a fixing plate provided in one embodiment of this disclosure;

[0032] Figure 7 A schematic diagram of a fixing plate, a flexible display panel, a flip-chip film, and a circuit board provided for another embodiment of this disclosure;

[0033] Figure 8 A schematic diagram of a fixing plate, a flexible display panel, a flip-chip film, and a circuit board provided in another embodiment of this disclosure;

[0034] Figure 9 A schematic diagram showing the cover plate layer not extended according to an embodiment of this disclosure;

[0035] Figure 10 A schematic diagram showing a cover plate extending onto a circuit board according to an embodiment of this disclosure;

[0036] Figure 11 This is a schematic diagram of the structure of a fixing plate provided in one embodiment of the present disclosure.

[0037] Explanation of reference numerals in the attached figures:

[0038] 100. Flexible display panel; 110. Crystal-coated film; 120. Circuit board; 130. Rear panel; 140. Cover plate; 150. Adhesive;

[0039] 200. Carapace; 210. First carapace; 220. Second carapace;

[0040] 300. Fixing plate; 310. First part; 320. Second part; 330. Third part; 340. Protrusion; 350. Buffer; 360. Limiting groove; 370. Blocking part;

[0041] 400. Lateral movement limiting mechanism. Detailed Implementation

[0042] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be more thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art.

[0043] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this disclosure. However, those skilled in the art will recognize that the technical solutions of this disclosure can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring aspects of this disclosure. The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software, or in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0044] Although relative terms such as "up" and "down" are used in this specification to describe the relative relationship of one component of an icon to another, these terms are used only for convenience, such as according to the orientation of the examples shown in the accompanying drawings. It is understood that if the device of the icon is flipped upside down, the component described as "up" will become the component described as "down." When a structure is "up" of another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is "directly" mounted on the other structure, or that the structure is "indirectly" mounted on the other structure through another structure.

[0045] The terms “a,” “one,” “the,” and “at least one” are used to indicate the existence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended inclusion and to mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms “first,” “second,” etc. are used only as markers and are not a limitation on the number of objects.

[0046] Embodiments of this disclosure provide a display device, such as Figures 1-10As shown, the display device includes: a flexible display panel 100, a back cover 200, a first support member, a chip-on-film (COF) 110, a circuit board (PCB) 120, and a fixing plate 300. A flexible display panel 100 is disposed on one side of a back shell 200. The flexible display panel 100 includes a first end and a second end opposite to each other, and a light-emitting side and a backlight side opposite to each other. A first support member is movably connected to the flexible display panel 100. The first end of the flexible display panel 100 is bent to the backlight side of the flexible display panel 100 through the first support member, forming support for the flexible display panel 100 in the bending area. A flip-chip film 110 connects the circuit board 120 and the flexible display panel 100. A fixing plate 300 is located between the circuit board 120 and the flexible display panel 100. One end of the fixing plate 300 is fixedly connected to the first end of the flexible display panel 100, and the other end is fixedly connected to the circuit board 120. A protrusion 340 is provided on the fixing plate 300. The protrusion 340 abuts against the back shell 200. The height of the protrusion 340 between the fixing plate 300 and the back shell 200 is greater than the maximum thickness of the circuit board 120.

[0047] The display device provided in this disclosure has a first support member movably connected to a flexible display panel 100. The first end of the flexible display panel 100 is bent to the backlight side of the flexible display panel 100 via the first support member, and the first support member provides support for the flexible display panel 100 in the bending area. When the flexible display panel 100 moves relative to the first support member, the circuit board 120 and the flip-chip film 110 connected to the first end of the flexible display panel 100 also move along with the flexible display panel 100. Figure 4As shown, the circuit board 120 and the flip-chip film 110 are located near the back cover 200 of the device. The electronic components on the circuit board 120 and the flip-chip film 110 are the materials or parts closest to the back cover 200. Therefore, in order to prevent the electronic components on the circuit board 120 and the flip-chip film 110 from being damaged by collision with the back cover 200, the circuit board 120 and the flip-chip film 110 are bent at a certain arc and fixed to the fixing plate 300. Since the circuit board 120 and the flip-chip film 110 are set on the fixing plate 300, the circuit board 120 and the flip-chip film 110 are fixed, avoiding the problem of display failure caused by excessive deformation of the flip-chip film 110 during movement. At the same time, the fixing plate 300 is provided with a protrusion 340, and the protrusion 340 and the back cover 200 are fixed together. The protrusion 340, located between the fixing plate 300 and the back shell 200, has a height greater than the maximum thickness of the circuit board 120. When the circuit board 120 and the flip-chip film 110 connected to the first end of the flexible display panel 100 move with the flexible display panel 100, it ensures that there is a gap between the electronic components on the circuit board 120 and the flip-chip film 110 and the back shell 200, thus avoiding collision failure between the electronic components on the circuit board 120 and the flip-chip film 110 and the back shell 200. This can prevent scratches and improve the reliability of the display device.

[0048] In one embodiment, the display device further includes a second support member. The second support member is movably connected to the flexible display panel 100, and the second end of the flexible display panel 100 is bent to the backlight side of the flexible display panel 100 via the second support member, forming support for the flexible display panel 100 in the bending area. Through the first and second support members, the first end of the flexible display panel 100 is bent to the backlight side of the flexible display panel 100 via the first support member, and the second end of the flexible display panel 100 is bent to the backlight side of the flexible display panel 100 via the second support member. That is, both the first and second ends of the flexible display panel 100 can move relative to the support members to change the display size of the display device, so that both the first and second ends of the flexible display panel 100 can be rolled up, thereby achieving the purpose of double rolling up.

[0049] Specifically, the first support member includes a first slide rail with a U-shaped first groove and a plurality of first support bars. The plurality of first support bars are arranged along the length direction of the flexible display panel 100, and the extension direction of the plurality of first support bars is parallel to the width direction of the flexible display panel 100. A first sliding block is provided on the side of each first support bar facing the first slide rail. The first sliding block of each first support bar is located in the first groove and slidably connected to the first slide rail. The first end of the flexible display panel 100 is slidably connected to the U-shaped first groove through the plurality of first support bars. The first end of the flexible display panel 100 is bent to the backlight side of the flexible display panel 100 through the U-shaped first groove. By sliding the flexible display panel 100 on the U-shaped first groove, the part of the flexible display panel 100 near the first end can be located on the light-emitting side or the backlight side, thereby realizing the adjustment of the length of the light-emitting side of the flexible display panel 100, that is, realizing the adjustment of the display size.

[0050] Of course, the first support member can also consist of a pivot and a support plate, with the pivot connected to the support plate and the support plate connected to the back cover 200. The support plate is used to support the flexible display panel 100, keeping it in a flat state. The first end of the flexible display panel 100 can be slid to the backlight side of the flexible display panel 100 via the pivot, or slid from the backlight side to the light-emitting side of the flexible linear panel. When the flexible display panel 100 is adjusted in display size via the pivot, the height of the protrusion 340 on the fixing plate 300 between the fixing plate 300 and the back cover 200 is greater than the maximum thickness of the circuit board 120. This ensures that there is a gap between the electronic components and the flip-chip film 110 on the circuit board 120 and the back cover 200, preventing the electronic components and the flip-chip film 110 on the circuit board 120 from colliding and failing with the back cover 200. This can prevent scratches and improve the reliability of the display device.

[0051] Specifically, the second support member includes a second slide rail with a U-shaped second slide groove and a plurality of second support bars. The plurality of second support bars are arranged along the length direction of the flexible display panel 100, and the extension direction of the plurality of second support bars is parallel to the width direction of the flexible display panel 100. A second sliding block is provided on the side of each second support bar facing the second slide rail. The second sliding block of each second support bar is located in the second slide groove and slidably connected to the second slide rail. The second end of the flexible display panel 100 is slidably connected to the U-shaped second slide groove through the plurality of second support bars. The second end of the flexible display panel 100 is bent to the backlight side of the flexible display panel 100 through the U-shaped second slide groove. By sliding the flexible display panel 100 on the U-shaped second slide groove, the part of the flexible display panel 100 near the second end can be located on the light-emitting side or the backlight side, thereby realizing the adjustment of the length of the light-emitting side of the flexible display panel 100, that is, realizing the adjustment of the display size.

[0052] Of course, the second support can also consist of a pivot and a support plate, with the pivot connected to the support plate and the support plate connected to the back shell 200; the support plate is used to support the flexible display panel 100 so that it is in a flat state; the second end of the flexible display panel 100 can be rolled up to the backlight side of the flexible display panel 100 through the pivot, or rolled up from the backlight side to the light-emitting side of the flexible display panel 100, thereby realizing the adjustment of the display size.

[0053] In one embodiment, the end of the fixing plate 300 is fixed to the first end of the flexible display panel 100 by means of dispensing-hot melt adhesive (thickness ≤100μm, such as 100μm, 90μm, 80μm, 70μm, 60μm, 50μm, etc.) or easy-pull adhesive (thickness ≤100μm, such as 100μm, 90μm, 80μm, 70μm, 60μm, 50μm, etc.).

[0054] The width of the first part 310 connecting the fixing plate 300 and the flexible display panel 100 depends on the width of the fixing area at the first end of the flexible display panel 100; the width of the second part 320 corresponding to the fixing plate 300 and the flip-chip film 110 depends on the size of the flip-chip film 110, and the design of the thickness direction of the second part 320 depends on the thickness of the display module; the width of the third part 330 corresponding to the fixing plate 300 and the circuit board 120 depends on the width of the circuit board 120.

[0055] Among them, such as Figures 4-8 As shown, a tail plate 130 is provided on the first end of the flexible display panel 100, and a fixing plate 300 is fixedly connected to the tail plate 130, thereby realizing the connection with the flexible display panel 100.

[0056] In one embodiment, such as Figure 5 and Figure 6 As shown, the second part 320 of the fixing plate 300 and the flip-chip film 110 are attached together. The fixing plate 300 provides support and fixation for the flip-chip film 110, preventing excessive deformation of the flip-chip film 110 during the sliding motion, which would cause display defects.

[0057] In this process, after the flip-chip film 110 connects the flexible display panel 100 and the circuit board 120, the surface morphology of the second part 320 of the fixing plate 300 facing the flip-chip film 110 matches the flip-chip film 110. That is, the surface curvature of the second part 320 of the fixing plate 300 matches the curvature of the flip-chip film 110, so that the surface of the second part 320 of the fixing plate 300 can adhere to the flip-chip film 110, thus providing better support for the flip-chip film 110.

[0058] Among them, the surface of the second part 320 corresponding to the fixed plate 300 and the flip-chip film 110 is an arc surface. The shape of the arc surface is similar to the bending path of the flip-chip film 110, which makes it easy for the flip-chip film 110 to be attached and fixed along the arc surface.

[0059] In one embodiment, such as Figure 7 As shown, a buffer 350 is provided between the fixing plate 300 and the flip-chip film 110, that is, the flip-chip film 110 is fixed on the fixing plate 300 through the buffer 350, which can play a buffering role for the flip-chip film 110.

[0060] The surface of the fixing plate 300 facing away from the flip-chip film 110 can be flat, and the surface of the part opposite to the flip-chip film 110 can also be flat. Since the flip-chip film 110 connects the flexible display panel 100 and the circuit board 120, the distance between the opposing surfaces of the flip-chip film 110 and the fixing plate 300 decreases in the direction toward the circuit board 120. A plurality of buffers 350 are provided between the fixing plate 300 and the flip-chip film 110, and the thickness of the plurality of buffers 350 also decreases in the direction toward the circuit board 120, so as to better maintain the original shape of the flip-chip film 110.

[0061] One, two, three, four or more buffer elements 350 can be provided, and multiple buffer elements 350 can be arranged at intervals. Of course, multiple buffer elements 350 can also be arranged closely together, forming a fixing surface that matches the surface morphology of the flip-chip film 110, so as to fix the flip-chip film 110.

[0062] The buffer element 350 may be a buffer foam, a buffer rubber, or other insulating element with a buffering effect. Any buffer element that can play the same role is within the protection scope of this disclosure.

[0063] In one embodiment, such as Figure 8 As shown, the flexible display panel 100 includes a display functional layer and a cover layer 140. The cover layer 140 is located on the side of the display functional layer facing the light-emitting side. The cover layer 140 extends from the first end of the flexible display panel 100 to the circuit board 120 and is connected to the circuit board 120. The flip-chip film 110 is located between the cover layer 140 and the fixing plate 300.

[0064] like Figure 9As shown, this is a design where the cover layer 140 does not extend outwards. The flexible display panel 100 is suspended on the left and right sides (approximately 5mm wide). This suspended portion of the flexible display panel 100 droops downwards due to gravity, and during the double-rolling motion, it may directly contact the back cover 200, causing scratches and deformation of the flexible display panel 100. This could affect the edge bonding between the flip-chip film 110 and the flexible display panel 100, resulting in poor display quality. Figure 10 As shown, the cover plate 140 extends to the fixing plate 300, covering the flip-chip film 110. The flexible display panel 100 and the flip-chip film 110 are protected by a "sandwich" design, which prevents the flip-chip film 110 from sagging and improves the protection of the flip-chip film 110 and the flexible display panel 100.

[0065] The cover layer 140 can be a transparent cover layer 140 of the flexible display panel 100. The material of the cover layer 140 is, for example, polyimide, polyurethane, TPU, etc. The thickness of the cover layer 140 is less than 0.85mm, for example, 0.85mm, 0.80mm, 0.75mm, 0.70mm, 0.65mm, 0.60mm, etc., which will not be listed here.

[0066] The cover layer 140 is fixed to the circuit board 120 by adhesive 150. Since the film layer misalignment reaches its maximum at the tail end of the flexible display panel 100 during the rolling motion, the adhesive selected must be able to withstand the misalignment of the cover layer 140. The adhesive requirements are: thickness ≤ 100 μm, resilience ≥ 95%. For example, the adhesive 150 may be optical adhesive (OCA), pressure-sensitive adhesive (PSA), or other adhesives 150 with similar effects; this disclosure does not limit this.

[0067] In one embodiment, such as Figures 4-8 and Figure 11 As shown, the fixing plate 300 is provided with a limiting groove 360, and the circuit board 120 is located in the limiting groove 360. By setting the limiting groove 360, the circuit board 120 is limited in the length direction of the flexible display panel 100, which improves the assembly accuracy and assembly efficiency of the circuit board 120 on the fixing plate 300.

[0068] The blocking portion 370, which forms a limiting groove 360 ​​by providing a retaining wall at the end of the fixing plate 300, facilitates the alignment of the circuit board 120 with the fixing plate 300. At the same time, the blocking portion 370 can also improve the structural strength of the end of the fixing plate 300 and prevent the end of the fixing plate 300 from deforming.

[0069] In one embodiment, such as Figures 4-8As shown, the protrusion 340 is located on the side of the circuit board 120 away from the first end of the flexible display panel 100. Because the protrusion 340 is located on the side of the circuit board 120 away from the first end of the flexible display panel 100, when the flexible display panel 100 participates in the sliding motion, the protrusion 340 slides on the back cover 200, forming a support for the circuit board 120 and the flip-chip film 110, so that there is a gap between the circuit board 120 and the flip-chip film 110 and the back cover 200.

[0070] The end face of the protrusion 340 that abuts against the back cover 200 is an arc-shaped surface that protrudes towards the back cover 200. By making the end face of the protrusion 340 that abuts against the back cover 200 an arc-shaped surface that protrudes towards the back cover 200, when the protrusion 340 slides on the back cover 200, it can form a line contact with the back cover 200, reducing friction and thus reducing wear between the back cover 200 and the protrusion 340. At the same time, it can also reduce the frictional resistance of the display device when adjusting the display size, avoid abnormal noise caused by excessive friction, and improve the user experience.

[0071] In the direction facing the back cover 200, the height of the protrusion 340 is 0.2mm to 0.4mm higher than the surface of the tallest component on the circuit board 120, for example, 0.2mm, 0.25mm, 0.3mm, 0.35mm, 0.4mm, etc., which will not be listed here. By being 0.2mm to 0.4mm higher, the protrusion 340 can directly contact the back cover 200, avoiding the risk of electronic components being scratched by the back cover 200, and at the same time avoiding the protrusion 340 being too high and affecting the thickness of the display device.

[0072] In the flexible display panel 100, along its length, the edge of the protrusion 340 has a gap of 0.1 mm to 0.3 mm between it and the edge of the circuit board 120, facilitating the alignment of the circuit board 120 on the fixing plate 300. The width of the gap can be, for example, 0.1 mm, 0.15 mm, 0.2 mm, 0.25 mm, 0.3 mm, etc., and is not listed here.

[0073] In one embodiment, such as Figure 11 As shown, since two components for fixing to the whole machine are designed in the width direction of the flexible display panel, in order to avoid these two components, the fixing plate 300 is designed as three sections, which are fixed to the flexible display panel 100 respectively.

[0074] The fixing plate 300 can be made of materials such as aluminum alloy, stainless steel, or carbon fiber, which can ensure the rigidity and hardness of the fixing plate 300.

[0075] The thickness of the fixing plate 300 is ≥0.3mm, such as 0.3mm, 0.5mm, 0.8mm, 1mm, 1.5mm, etc., which will not be listed here in this disclosure.

[0076] In one embodiment, such as Figure 4 As shown, the back cover 200 includes a first back cover 210 and a second back cover 220. The first back cover 210 corresponds to the first end of the flexible display panel 100, and the second back cover 220 corresponds to the second end of the flexible display panel 100.

[0077] In one embodiment, such as Figure 1 and Figure 2 As shown, the display device also includes a lateral movement limiting mechanism 400. When the display device adjusts the display size of the flexible display panel 100 on the light-emitting side, the lateral movement limiting mechanism 400 can limit the maximum and minimum display size of the flexible display panel 100. When the two lateral movement limiting mechanisms 400 corresponding to the first and second ends of the flexible display panel 100 abut, the flexible display panel 100 is in its minimum display size state; when the distance between the two lateral movement limiting mechanisms 400 corresponding to the first and second ends of the flexible display panel 100 is adjusted to its maximum, the flexible display panel 100 is in its maximum display size state. The lateral movement limiting mechanism 400 can be fixedly connected to the back cover 200.

[0078] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0079] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A display device, characterized in that, include: Back shell; A flexible display panel is disposed on one side of the back shell. The flexible display panel includes a first end and a second end opposite to each other, and a light-emitting side and a back-light side opposite to each other. A first support member is movably connected to the flexible display panel. The first end of the flexible display panel is bent to the backlight side of the flexible display panel through the first support member. The first support member provides support for the flexible display panel in the bending area. A flip-chip film, one end of which is connected to the flexible display panel; A circuit board, wherein the circuit board is connected to the other end of the flip-chip film; A fixing plate is located between the circuit board and the flexible display panel. One end of the fixing plate is fixedly connected to the first end of the flexible display panel, and the other end is fixedly connected to the circuit board. The fixing plate is provided with a protrusion that abuts against the back shell. The height of the protrusion between the fixing plate and the back shell is greater than the maximum thickness of the circuit board. The end face of the protrusion that abuts against the back shell is an arc surface that protrudes towards one side of the back shell.

2. The display device according to claim 1, characterized in that, The display device further includes: The second support member is movably connected to the flexible display panel. The second end of the flexible display panel is bent to the backlight side of the flexible display panel through the second support member, and the second support member provides support for the flexible display panel in the bending area.

3. The display device according to claim 1, characterized in that, The flexible display panel includes a display functional layer and a cover layer. The cover layer is located on the side of the display functional layer facing the light-emitting side. The cover layer extends from the first end of the flexible display panel to the circuit board and is connected to the circuit board. The flip-chip film is located between the cover layer and the fixing plate.

4. The display device according to claim 1, characterized in that, The portion of the fixing plate corresponding to the flip-chip film is attached to the flip-chip film.

5. The display device according to claim 1, characterized in that, A buffer is provided between the fixing plate and the flip-chip film.

6. The display device according to claim 5, characterized in that, A plurality of buffer members are provided between the fixing plate and the flip-chip film, and the thickness of the plurality of buffer members increases in the direction of the circuit board near the flip-chip film.

7. The display device according to claim 1, characterized in that, The fixing plate is provided with a limiting groove, and the circuit board is located in the limiting groove.

8. The display device according to claim 1, characterized in that, The protrusion is located on the side of the circuit board away from the first end of the flexible display panel.

9. The display device according to claim 1, characterized in that, The fixing plate has a blocking part on the end away from the flip-chip film, and the blocking part is located on the side of the fixing plate facing the back shell.

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