Display panel capable of being rolled up and television

Abstract

A display panel capable of being rolled up belongs to the technical field of televisions and comprises a polarizing film layer, a transparent base material layer, a transparent anode layer, a light-emitting layer, a metal cathode layer, a backboard film layer and a reinforcing structure layer which are sequentially arranged from a display surface to a back surface, the reinforcing structure layer comprises a plurality of continuously connected reinforcing units, and each reinforcing unit comprises a substrate layer and a reinforcing layer. The bending strength of the base layer is smaller than or equal to that of the reinforcing layer, the base layer and the reinforcing layer are stacked to form at least two layers of arc-shaped batten structures, and the tops of the arc-shaped batten structures are distributed at intervals and connected with the backboard film layer. The utility model further discloses a television comprising the display panel, according to the display panel and the television, the reinforcing structure layer is arranged on the backboard film layer, the unevenness problem that the display panel and / or the television are / is bent and deformed after being rolled and unfolded is solved, and the flatness of the display panel and / or the television is guaranteed.

Description

Technical Field

[0001] This application relates to the technical field of televisions, and particularly relates to a retractable display panel and a television. Background Art

[0002] With the development of flexible display panel technology, flexible televisions have gradually entered the public eye. Since they can be retracted and unfolded, in home displays, they can reduce the occupied space and save space; in vehicle-mounted displays, they can install as large a television as possible in the narrow space inside the vehicle to obtain a large-screen display experience. Therefore, flexible televisions have become one of the important development directions in display technology. Currently, there are still certain problems with flexible televisions, that is, when a flexible television is unfolded after being retracted, unevenness problems caused by bending deformation during retraction often occur on the television screen. These bending deformations will cause deformation of the display image, thereby affecting the image display and viewing experience of the television. Content of the Utility Model

[0003] To solve the above technical problems, this application discloses a retractable display panel and a television including the display panel. By providing a reinforcement structure layer on the backplane film layer of the display panel, unevenness problems caused by bending deformation after the display panel and / or the television are retracted and unfolded are avoided, the flatness of the display panel and / or the television is ensured, and thus the image display effect and viewing experience are guaranteed.

[0004] The specific technical solution of this application is as follows:

[0005] A retractable display panel, comprising: a polarizing film layer, a transparent substrate layer, a transparent anode layer, a light-emitting layer, a metal cathode layer, a backplane film layer, and a reinforcement structure layer sequentially arranged from the display surface to the back surface. The reinforcement structure layer includes a plurality of continuously connected reinforcement units. Each reinforcement unit includes a base layer and a strengthening layer. The flexural strength of the base layer is less than or equal to that of the strengthening layer. The base layer and the strengthening layer are stacked to form an arc-shaped plate-like structure with at least two layers. The tops of the arc-shaped plate-like structures are distributed at intervals and connected to the backplane film layer.

[0006] The polarizing film layer, the transparent substrate layer, and the backplane film layer are all flexible and rollable. The reinforcement structure layer is set as a reinforcement unit with at least two layers including a base layer and a strengthening layer that are continuously connected. The shape of the reinforcement unit is set as an arc-shaped plate-like structure, and the flexural strength of the strengthening layer is greater than or equal to that of the base layer. In this way, by enhancing the strength of the strengthening layer, the flexural strength of the reinforcement structure layer is further improved, thereby overcoming the limitation of the reinforcement structure layer with a single-layer arc-shaped plate-like structure in improving the flexural strength. The reinforcement structure layer of this shape can also be curled. By setting the reinforcement structure layer on the backplane film layer, the flatness of the display panel is greatly improved, and at the same time, the display panel can still be retracted, effectively solving the unevenness problem of bending deformation after the display panel is retracted and unfolded.

[0007] Further, the polarizing film layer sequentially includes a linear polarizing film and a circular polarizing film.

[0008] The polarizing film layer can absorb the ambient light incident on the surface of the display panel, reduce the reflection of the ambient light by the display panel, thereby improving the clarity and contrast of the display panel.

[0009] Further, the included angle between the transmission axis of the circular polarizing film and the polarization direction of the transmitted light is 45°; the included angle between the transmission axis of the linear polarizing film and the polarization direction of the transmitted light is 90°.

[0010] Further, the top extension directions of the arc-shaped strip structures are parallel to each other.

[0011] The top extension directions of the arc-shaped strip structures being parallel to each other is beneficial to providing a relatively uniform supporting force, ensuring the effective connection between the reinforcement structure layer and the backplane film layer, and maintaining the flatness of the display panel. In particular, for a rollable display panel, it is beneficial to uniformly wind and store, and avoid excessive local bending to form creases.

[0012] Further, the base layer is a single-layer or multi-layer composite material, and a reinforcement layer is provided on one side or opposite two sides of the base layer.

[0013] Further, any adjacent reinforcement units are connected by an inverted arc-shaped strip structure.

[0014] By alternately connecting the reinforcement units and the inverted arc-shaped strip structures, the continuity of the reinforcement structure is realized, the shaking / twisting between the reinforcement units is avoided, and the long-term stability of the reinforcement structure layer is maintained, thereby maintaining the flatness of the supported display panel.

[0015] Further, the size coverage range of the reinforcement structure layer is equal to the display area of the display panel.

[0016] The size of the reinforcement structure layer fully covers the display panel, which can provide a more complete anti-bending support force to the display panel and avoid local deformation of the display panel where the reinforcement structure layer is not covered.

[0017] Further, the height of the reinforcement unit is 4 mm to 20 mm, and the thickness is 2 mm to 10 mm.

[0018] The height and thickness of the reinforcement unit determine the amount of material used and the winding size of the display panel. Therefore, appropriate height and thickness are beneficial to cost saving and avoid the display panel having too large a size and occupying too much space after being wound.

[0019] A television comprises the aforementioned display panel, a box body and a counterweight rod; a scroll mechanism and a motor are provided in the box body, the scroll mechanism includes a winding rod, and the motor is connected to one end of the winding rod; one side of the display panel is connected to the winding rod, and the other side is connected to the counterweight rod.

[0020] A television comprises the aforementioned display panel, a base, a lifting mechanism and an upper crossbeam; a scroll mechanism is provided on the base, the scroll mechanism including a winding rod, the winding rod being connected to one side of the display panel, and the other side of the display panel being connected to the upper crossbeam; one end of the lifting mechanism is connected to the upper crossbeam, and the other end is connected to the base.

[0021] The present application connects the aforementioned display panel with a motor and a scroll mechanism to form a retractable TV, thereby effectively solving the problem of unevenness caused by bending and deformation when the TV is unfolded after being rolled up. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of a display panel according to the first embodiment;

[0023] Figure 2 Schematic diagram of the shape of the reinforcement structure layer of Example 1;

[0024] Figure 3 This is a schematic diagram of the connection between the reinforcement structure layer and the backsheet film layer in Example 1;

[0025] Figure 4 Schematic diagram of the relationship between the transmission axis of each component of the polarizing film layer and the polarization direction of the transmitted light in Example 1;

[0026] Figure 5 This is a schematic diagram of the curved slat structure of Example 1;

[0027] Figure 6 This is a schematic diagram of the reinforcement layer being arranged on the base layer in Example 1;

[0028] Figure 7 This is a schematic diagram of another shape of the reinforcement structure layer of Example 1;

[0029] Figure 8 Schematic diagram of the size of the enhanced structure layer and the display panel in Example 1;

[0030] Figure 9 Schematic diagram of the dimensions of the reinforcement unit in Example 1;

[0031] Figure 10 This is a schematic diagram of a television according to the second embodiment;

[0032] Figure 11 This is a schematic diagram of a television according to Embodiment 3;

[0033] Wherein: 10 - display panel; 101 - polarizing film layer; 102 - transparent substrate layer; 103 - transparent anode layer; 104 - light-emitting layer; 105 - metal cathode layer; 106 - backplane film layer; 107 - reinforcing structure layer; 200 - reinforcing unit; 201 - top of the arc-shaped plate strip structure; 202 - inverted arc-shaped plate strip structure; 203 - base layer; 204 - reinforcing layer; 30 - box body; 301 - motor; 302 - reel mechanism; 3021 - winding rod; 40 - counterweight rod; 50 - rollable TV; 60 - base; 601 - lifting mechanism; 602 - upper cross beam. Detailed implementation manners

[0034] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the specific implementation manners.

[0035] Embodiment 1

[0036] Figure 1 FIG. is a schematic structural diagram of the display panel for Embodiment 1. A rollable display panel 10 includes: a polarizing film layer 101, a transparent substrate layer 102, a transparent anode layer 103, a light-emitting layer 104, a metal cathode layer 105, a backplane film layer 106, and a reinforcing structure layer 107 sequentially arranged from the display surface to the back surface.

[0037] Figure 2 FIG. is a schematic diagram of the shape of the reinforcing structure layer for Embodiment 1, Figure 3 FIG. is a schematic diagram of the connection between the reinforcing structure layer and the backplane film layer for Embodiment 1. The reinforcing structure layer 107 includes a plurality of continuously connected reinforcing units 200 ( Figure 2 the part within the dashed box in the figure), the reinforcing unit 200 includes a base layer 203 and a reinforcing layer 204, the bending strength of the base layer 203 is less than or equal to the bending strength of the reinforcing layer 204, and the base layer 203 and the reinforcing layer 204 are stacked to form a two-layer arc-shaped plate strip structure, and the tops 201 of the arc-shaped plate strip structures are distributed at intervals and connected to the backplane film layer 106.

[0038] Further explanation, the reinforcing units 200 on the reinforcing structure layer 107 are continuously connected, and the reinforcing units 200 can support each other, so as to enhance the overall bending strength of the reinforcing structure layer 107 and prevent the twisting deformation of the reinforcing structure layer 107 itself.

[0039] Further, the base layer 203 can be a single-layer material or a multi-layer composite material. The single-layer material can be resin materials such as polyethylene terephthalate, polyvinyl chloride, polymethyl methacrylate, and polycarbonate; the multi-layer composite material can be formed by compounding resin materials such as polyethylene terephthalate, polyvinyl chloride, polymethyl methacrylate, and polycarbonate, or can be formed by compounding resin materials such as polyethylene terephthalate, polyvinyl chloride, polymethyl methacrylate, and polycarbonate with carbon fiber, glass fiber, non-woven fabric, etc.

[0040] Further, the reinforcing layer 204 can be formed by coating resin materials such as acrylate, polyurethane, and epoxy acrylate on the base layer, or can be formed by laminating a composite material formed by polyethylene terephthalate, polyvinyl chloride, polymethyl methacrylate, polycarbonate and their combination with carbon fiber, glass fiber, non-woven fabric, etc. on the base layer, so that the bending strength of the reinforcing layer is greater than or equal to that of the base layer. In this way, the bending strength of the base layer can be doubled by the reinforcing layer, effectively improving the bending strength of the reinforced structure layer, thereby solving the problem of uneven bending deformation when the display panel and / or the TV is unrolled after being wound up.

[0041] Further explanation is that the single reinforcing unit being an arc-shaped strip structure means that the cross-sectional shape of the structure is arc-shaped and the structure extends in a strip shape along one direction. The cross-sectional shape of the arc-shaped strip structure is not limited to that shown in the drawings of this application and can be circular arc-shaped, elliptical arc-shaped or multi-curve-shaped, etc. Therefore, the arc described in this application is a description to distinguish it from a straight line.

[0042] Further explanation is that the polarizing film layer 101, the transparent substrate layer 102, the backplane film layer 106, etc. of the display panel 10 are all flexible and rollable. The reinforced structure layer 107 is set as a two-layer structure reinforcing unit 200 continuously connected and including the base layer 203 and the reinforcing layer 204, and the shape of the reinforcing unit 200 is set as an arc-shaped strip structure, and the bending strength of the reinforcing layer 204 is greater than or equal to that of the base layer 203. In this way, the bending strength of the reinforced structure layer 107 can be further improved by enhancing the strength of the reinforcing layer 204, thus overcoming the limitation of the bending strength improvement of the reinforced structure layer of a single arc-shaped strip structure, and the reinforced structure layer 107 of this shape can also be rolled. By setting the reinforced structure layer 107 on the backplane film layer 106, the flatness of the display panel 10 is greatly improved, and at the same time, the display panel 10 can also be wound up, effectively solving the problem of uneven bending deformation when the display panel 10 is unrolled after being wound up.

[0043] To further explain, the base layer 203 can be a multi-layer material layer with more than two layers, and the reinforcement layer 204 can also be a multi-layer material layer with more than two layers. Therefore, the reinforcement unit can also be a multi-layer structure with more than two layers, such as three layers, four layers, or five layers, which are not given examples here. It can be seen that in order to increase the bending strength of the reinforcement unit composed of the base layer and the reinforcement layer, more layers of reinforcement layers can be set to adjust it, and for different bending deformations of the product, reinforcement structure layers with corresponding bending strength can be used to resist the bending deformation of the product, which can achieve better flatness of the product.

[0044] Furthermore, the polarizing film layer 101 includes a linear polarizing film and a circular polarizing film in sequence.

[0045] Figure 4 Schematic diagram of the relationship between the transmission axis of each component of the polarizing film layer and the polarization direction of the transmitted light in Example 1. Figure 4 As shown in Figure a, with o as the origin, the transmission axis direction of the circular polarizing film is the oy direction, the polarization direction of the transmitted light is the oc direction, and the angle between the transmission axis direction of the circular polarizing film and the polarization direction of the transmitted light is preferably 45°; Figure 4 As shown in Figure b, with o as the origin, the transmission axis direction of the linear polarizing film is the ov direction, the polarization direction of the transmitted light is the oz direction, and the angle between the transmission axis direction of the linear polarizing film and the polarization direction of the transmitted light is preferably 90°.

[0046] After passing through the 90° linear polarizing film, the ambient light is converted into 90° linear polarized light and transmitted. After passing through the 45° circular polarizing film, since the circular polarizing film is composed of a linear polarizing film and a phase retarder, it is converted into 135° linear polarized light and transmitted. The light is then reflected back to the 45° circular polarizing film by the metal cathode layer 105, converted into 180° linear polarized light and transmitted. Finally, the 180° linear polarized light that has passed through the circular polarizing film is incident on the 90° linear polarizing film. Since the 180° linear polarized light is orthogonal to the transmission axis of the 90° linear polarizing film, it cannot pass through and is absorbed by the linear polarizing film. The ambient light that is incident on the display panel surface is then absorbed by the polarizing film layer 101. Therefore, providing the polarizing film layer 101 on the surface of the display panel 10 can reduce the reflection of ambient light by the display panel 10, thereby improving the clarity and contrast of the display panel 10.

[0047] Furthermore, the transparent substrate layer 102 can be a flexible film or a flexible sheet, and its material can be a combination of one or more transparent resin materials such as polyacrylate, polyethylene terephthalate, fluorinated polymer, polyethylene naphthalate, polyparaxylene, polycarbonate, polyimide, etc.

[0048] Furthermore, the transparent anode layer 103 may be made of materials such as polyaniline, gold, indium tin oxide, zinc oxide, etc., which can transmit light and absorb electrons to form holes.

[0049] Furthermore, the light-emitting layer 104 can be poly(phenylacetylene), polythiophene, or dyes or pigments with fluorescence or phosphorescence. The electrons provided by the cathode and the holes provided by the anode meet in the light-emitting layer 104, exciting the fluorescent dye or phosphorescent dye, thereby radiating to form light and emitting it.

[0050] Furthermore, the metal cathode layer 105 can be composed of a single layer of metals such as gold (Au), silver (Ag), aluminum (Al), lithium (Li), magnesium (Mg), calcium (Ca), indium (In), etc.; it can also be a multi-layer alloy such as an alloy of magnesium (Mg) and silver (Ag), or an alloy of lithium (Li) and aluminum (Al). The metal cathode layer 105 can overflow electrons and can also act as a reflective layer to reflect light out of the panel.

[0051] Furthermore, the backplane film layer 106 can be a flexible thin film or a flexible sheet, and its material can be a combination of one or more of transparent resin materials such as polyacrylate, polyethylene terephthalate, fluorinated polymer, polyethylene naphthalate, parylene, polycarbonate, polyimide, etc.

[0052] Furthermore, between the transparent anode layer 103 and the light-emitting layer 104, a hole transport layer can also be included; between the light-emitting layer 104 and the metal cathode layer 105, an electron transport layer can also be included. By the convergence of holes by the hole transport layer and the convergence of electrons by the electron transport layer, the transport efficiency of holes and electrons is improved, thereby improving the light-emitting efficiency of the display panel.

[0053] Furthermore, a hole injection layer can also be included between the transparent anode layer 103 and the hole transport layer, and an electron blocking layer can also be included between the hole transport layer and the light-emitting layer 104; an electron injection layer can also be included between the metal cathode layer 105 and the electron transport layer, and a hole blocking layer can also be included between the electron transport layer and the light-emitting layer 104. The hole injection layer can smoothly inject holes into the hole transport layer, and the hole transport layer transports the holes to the light-emitting layer. The electron blocking layer can block electrons at the interface of the light-emitting layer, increasing the electron concentration at the interface of the light-emitting layer; the electron injection layer can smoothly inject electrons into the electron transport layer, and the electron transport transports the electrons to the light-emitting layer. The hole blocking layer blocks holes at the interface of the light-emitting layer, improving the combination probability of holes and electrons at the interface of the light-emitting layer, thereby increasing the light-emitting efficiency of the display panel.

[0054] Furthermore, the material of the hole injection layer can be evaporated silicon dioxide, lithium fluoride, etc.; the material of the electron injection layer can be lithium oxide, potassium silicate, lithium fluoride, etc.; the material of the hole transport layer can be a triaromatic amine compound; the material of the electron transport layer can be an aromatic compound such as 1,3,4-oxadiazole or 1,2,4-triazole; the material of the electron blocking layer can be indium aluminum nitride and aluminum gallium nitride, etc.; the material of the hole blocking layer can be 3,5-tris(N-phenyl-2-benzimidazole)benzene or MgO-doped tin oxide quantum dots.

[0055] Figure 5 Schematic diagram of the curved slat structure of embodiment 1. The extension directions of the tops 201 of all the curved slat structures are parallel to each other. Here, the curved slat structure tops 201 can be distributed on two opposite sides of the structure, and the extension directions of the curved slat structure tops 201 are parallel to each other, which means that the extension directions of the curved slat structure tops 201 are parallel to each other in the same plane, such as Figure 5 It can also refer to the extension direction of the top 201 of the arc-shaped strip structure being parallel to each other in space, such as Figure 5 As shown in Figure b, the tops 201 of the arc-shaped slat-like structures are not completely in the same plane. In this case, the extension directions of the tops of the arc-shaped slat-like structures are parallel to each other in space.

[0056] Further explanation: the extension directions of the top 201 of the curved strip structure are parallel to each other, which is conducive to providing a relatively uniform supporting force, ensuring the effective connection between the reinforcement structure layer 107 and the back plate film layer 106, and maintaining the flatness of the display panel 10. In particular, for a rollable display panel 10, it is conducive to uniform winding and storage, avoiding excessive local bending and forming creases.

[0057] Figure 6 FIG. 2 is a schematic diagram of a reinforcement layer arranged on a base layer in accordance with an embodiment 1. A reinforcement layer 204 may be arranged on one side of the base layer 203, such as Figure 6 As shown in Figure a; a reinforcing layer 204 may also be provided on two opposite sides of the base layer 203, as shown in Figure a; Figure 6 Specifically, according to the need to enhance the strength of the structural layer 107 , more reinforcement layers 204 are provided on the base layer 203 .

[0058] Figure 7 This is a schematic diagram of another shape of the reinforcement structure layer of Example 1. Any adjacent reinforcement units 200 are connected by inverted arc-shaped strip-like structures 202. Connecting adjacent reinforcement units 200 via inverted arc-shaped strip-like structures 202 ensures continuity of the reinforcement structure, prevents shaking or twisting between the reinforcement units, maintains the long-term stability of the reinforcement structure, and thus maintains the flatness of the display panel 10.

[0059] Furthermore, any adjacent reinforcement units 200 can also be connected by other connecting members. The cross-sectional shape of the connecting member can be linear, curved, etc. That is to say, the reinforcement units 200 are not isolated from each other, but are connected by connecting members to form a whole, thereby realizing the continuity of the reinforcement structure layer 107, avoiding the separation of the reinforcement structure layer 107 from the display panel 10 due to the shaking / twisting of the reinforcement units 200, and thus maintaining the long-term stable connection between the display panel 10 and the reinforcement structure layer 107, and the flatness of the connection between the reinforcement structure layer 107 and the display panel 10.

[0060] Figure 8 It is a schematic diagram of the size of the reinforcement structure layer and the display panel in Embodiment 1. The length L and width K of the reinforcement structure layer 107 are equal to the length and width of the display panel 10, that is, the size of the reinforcement structure layer 107 completely covers the size of the display panel 10. By comprehensively covering the display panel 10 with the size of the reinforcement structure layer 107, more complete anti-bending support force can be provided to each position of the display panel 10, avoiding local deformation of the display panel area without the reinforcement structure layer coverage.

[0061] Figure 9 It is a schematic diagram of the size of the reinforcement unit in Embodiment 1. The height D of the reinforcement unit 200 is 4 mm to 20 mm, and the thickness d is 2 mm to 10 mm. As Figure 9 shown in Figure a, the reinforcement structure layer 107 is composed of direct continuous connection between the reinforcement units 200. The height and thickness of the reinforcement unit 200 can be obtained by measuring any reinforcement unit 200; while as Figure 9 shown in Figure b, the reinforcement structure layer 107 is composed of continuous connection between each reinforcement unit 200 through an inverted arc-shaped plate-like structure. At this time, half of the thickness of the reinforcement structure side is used as the thickness of the reinforcement unit, and then the height measured at this time is the height of the reinforcement unit. It can be known that the height D and thickness d of the reinforcement unit 200 can determine the amount of material used, the forming difficulty, the anti-bending deformation strength of the formed reinforcement structure layer, and the winding size of the display panel. Therefore, on the premise of meeting the anti-bending strength of the reinforcement structure layer, appropriate height and thickness are beneficial to cost savings and avoiding the winding size of the display panel from being too large and occupying a large space.

[0062] After research, when the height D of the reinforcement unit is less than 4 mm and the thickness d is less than 2 mm, the difficulty of forming the reinforcement structure layer will increase significantly, and the anti-bending deformation strength of the formed reinforcement structure layer is small, which is not conducive to resisting the bending deformation after the display panel is wound; while when the height D is greater than 20 mm and the thickness d is greater than 10 mm, the material usage and the winding size of the display panel both increase significantly. The significant increase in material usage results in the display panel being too heavy, and the winding size being too large is not conducive to the packaging, transportation, and installation of the display panel, and will also reduce the service life of the display screen.

[0063] Further, the height D of the reinforcing unit can gradually decrease / increase along one direction, and the thickness d can gradually increase / decrease along one direction. Additionally, the height D and thickness d of the reinforcing unit can also change in the following ways: the height D shows a trend change along one direction while the thickness d remains unchanged; the thickness d shows a trend change along one direction while the height D remains unchanged.

[0064] Further, on the side of the reinforcing structure layer away from the display surface of the display panel, a protective film layer can be provided to cover the reinforcing structure layer. When the display panel is wound or unwound, the protective film layer is wound or unwound together, which can prevent the reinforcing structure layer from scratching the display surface during the winding and unwinding process.

[0065] Embodiment 2

[0066] Figure 10 It is a schematic diagram of a TV for Embodiment 2. Figure 10 In Figure a, it is a diagram of the unfolded state of the TV. The TV 50 includes the display panel 10, the box body 30, and the counterweight rod 40 of Embodiment 1. A reel mechanism 302 and a motor 301 are provided inside the box body 30. The reel mechanism 302 includes a winding rod 3021, and the motor 301 is connected to one end of the winding rod 3021. One side edge of the display panel 10 is connected to the winding rod 3021, and the other side edge of the display panel 10 is connected to the counterweight rod 40.

[0067] Here, the display panel 10 is rollable, which is beneficial for the winding and unwinding of the TV. When needed, it can be unfolded for viewing, and when not needed, it can be wound up.

[0068] A winding rod 3021 and a motor 301 are provided inside the box body 30. The motor 301 is connected to one end of the winding rod 3021. The motor 301 provides power for the winding and unwinding of the entire TV. By controlling the motor 10 to drive the rotation of the winding rod 3021, the control of the winding and unwinding of the TV is realized. One side edge of the display panel 10 is connected to the winding rod 3021, and the winding rod 3021 is mainly used for the winding and unwinding operations of the display panel 10. The other side edge of the display panel 10 is connected to the counterweight rod 40, and the counterweight rod 40 provides corresponding gravity for the unfolding of the display panel 10, so that the display panel 10 is flattened in the vertical direction.

[0069] The outer shape of the box body 30 can be square, circular, polygonal, etc. Its decorative edge (cover) is generally only used for concealed or embedded products, and its shape can be "L"-shaped, "T"-shaped, or irregular. The connection of each part in the box body 30 can be achieved by means such as screws, buckles, and welding. The winding rod 3021 can use different involute structure reels to improve the height difference problem at the connection between the winding rod 3021 and the display panel 10, and the height of the involute can be changed according to the actual situation. The counterweight rod 40 has the function of decorative counterweight, and its shape is not unique. The cross-section can be trapezoidal, rectangular, or circular. The material of the counterweight rod 40 can be selected from metal materials such as iron and stainless steel. The end cover of the counterweight rod 40 can be provided with small steps to limit the wound display panel and block the gap. The connection method between the winding rod 3021, the counterweight rod 40, and the display panel 10 can be any one of bonding, pressing with a strip, buckling, etc.

[0070] When installed on the wall or mounted on the roof of a vehicle, the counterweight rod 40 can also be fixed by magnetic attraction or Velcro, such as installing one or more pairs of magnetic attraction devices. In this way, it is possible to avoid the situation where the lower end of the display panel sways under the influence of wind or slight external force.

[0071] Figure 10 Figure b in it is the winding state diagram of the TV 50. The display panel 10 is wound into a cylindrical shape in the box body 30, and the entire display panel 10 is accommodated in the box body 30, greatly reducing the occupied space and facilitating storage and transportation. When not in use, the display panel 10 can be stored and hidden in the box body 30, which not only improves the aesthetic degree but also improves the convenience of TV transportation, is conducive to the popularization and application of the retractable TV, and greatly expands the application scenarios. When winding, starting from the winding rod 3021, the display surface of the display panel 10 is placed on the inner side of the winding (close to the winding rod 3021), and the reinforcing structure layer 107 is placed on the outer side of the winding. It is wound layer by layer. Along the winding rod 3021 outward, there are successively the display surface of the display panel 10, the reinforcing structure layer 107, the display surface of the display panel 10, the reinforcing structure layer 107..., and the outermost is the reinforcing structure layer 107.

[0072] Furthermore, auxiliary sections can also be provided on both sides of the display panel 10, and the display panel 10 is connected to the winding rod 3021 and the counterweight rod 40 through the auxiliary sections. In this way, the display panel 10 is not directly connected to the winding rod 3021 and the counterweight rod 40, which can further reduce the size of the display panel 10 and the overall weight of the TV, and is conducive to packaging, transportation, and installation.

[0073] Furthermore, the auxiliary section is also made of a material that can be curled, which can be the same as the material of the backplane film layer 106. Since the auxiliary section is not used for display, an enhancing structure layer 107 can be provided on the auxiliary section, or the enhancing structure layer 107 can not be provided.

[0074] Further, regarding the specific description of the flexural strength in the solution of this application, the flexural strength refers to the ability of a material or structure to resist bending deformation. The measurement method of the flexural strength adopts the three-point bending test in the national standard of GB / T6569-2006 "Test Method for Flexural Strength of Fine Ceramics".

[0075] Flexural Stability Test of the Retractable TV in Embodiment 2

[0076] 1. Selection of Samples

[0077] Sample 1: 30-inch display screen corresponding to Embodiment 2 of this application;

[0078] Sample 2: 50-inch display screen corresponding to Embodiment 2 of this application;

[0079] Sample 3: 70-inch display screen corresponding to Embodiment 2 of this application;

[0080] Sample 4: 90-inch display screen corresponding to Embodiment 2 of this application;

[0081] Sample 5: 100-inch display screen corresponding to Embodiment 2 of this application;

[0082] 2. Appearance Inspection

[0083] Perform heat resistance, cold resistance, humidity resistance and thermal cycle tests on Samples 1 to 5:

[0084] Heat resistance test: Place the above samples in a high and low temperature cycling chamber at 60 °C for 48 h.

[0085] Cold resistance test: Place the above samples in a high and low temperature cycling chamber at -40 °C for 48 h.

[0086] Humidity resistance test: Place the above samples in a high and low temperature cycling chamber at 40 °C and a relative humidity of 90% for 48 h.

[0087] Thermal cycle test: Place the above samples at -20 °C and 60 °C for 12 h each, for 3 cycles.

[0088] After the test, visually inspect the samples at a point with ambient light above 500 lx. The inspection results are shown in Table 1.

[0089] Table 1

[0090] Test Appearance Sample 1 Sample 2 Sample 3 Sample 4 Sample 5 Heat Resistance Test Is there any bending? No No No No No Cold Resistance Test Is there any bending? No No No No No Moisture Resistance Test Is there any bending? No No No No No Thermal Cycle Test Is there any bending? No No No No No

[0091] As can be seen from Table 1: After Samples 1 to 5 have undergone heat resistance, cold resistance, humidity resistance and thermal cycle tests, no bending occurs.

[0092] 3. Performance Stability Test

[0093] Samples 1 to 5 were subjected to winding and unwinding operations. One complete winding and unwinding process was recorded as one cycle. It was observed whether there were bending deformation problems with Samples 1 to 5 after 500, 2000, 5000, and 10000 cycles. The test results are shown in Table 2.

[0094] Table 2

[0095]

[0096] As can be seen from Table 2: Samples 1 to 5 did not show bending deformation after 500, 2000, 5000, and 10000 cycles. That is to say, the TV in the second embodiment of the present application has good stability and no bending deformation problem, and the flatness of the TV is guaranteed, thereby ensuring the display effect. Therefore, the TV in the second embodiment can effectively avoid the unevenness problem caused by bending deformation.

[0097] Furthermore, by connecting the display panel of the first embodiment with a motor, a reel mechanism, etc. to form a retractable TV, the present application effectively solves the bending deformation problem that occurs when the TV is unrolled after being wound.

[0098] Embodiment 3

[0099] Figure 11 It is a schematic diagram of the TV in Embodiment 3. Figure 11 Figure 1-1 is the unfolded state diagram of the TV, Figure 1-2 is the partial enlarged view of position A in Figure 1-1, and Figure 1-3 is the wound state diagram of the TV.

[0100] The TV 50 includes the display panel 10 of Embodiment 1, a base 60, a lifting mechanism 601, and an upper crossbeam 602; a reel mechanism 302 is provided on the base 60. The reel mechanism 302 includes a winding rod 3021. The winding rod 3021 is connected to one side edge of the display panel 10, and the other side edge of the display panel 10 is connected to the upper crossbeam 602; one end of the lifting mechanism 601 is connected to the upper crossbeam 602, and the other end is connected to the base 60.

[0101] For further explanation, the outer shape of the base 60 can be square, circular, or polygonal, etc. Its decorative edge (cover) is generally only used for hidden or embedded products, and its shape can be "L" - shaped, "T" - shaped, or irregular. The winding rod 3021 is provided on it and is connected to one side edge of the display panel 10. The winding rod 3021 is mainly used for winding the display panel. The winding rod 3021 cooperates with the lifting mechanism 601 to control the lifting of the display panel; the other side edge of the display panel is connected to the upper crossbeam 602, and the upper crossbeam 602 provides an upward tensile force for the display panel.

[0102] Furthermore, the winding rod 3021 can use different involute structure reels to improve the height difference problem at the connection between the winding rod 3021 and the display panel. The involute can change the height according to the actual situation. The upper crossbeam 602 also has a decorative function, and its shape is not unique. The cross-section can be trapezoidal, rectangular or circular. The material of the upper crossbeam 602 can be selected from metal materials such as iron and stainless steel. The end cover of the upper crossbeam 602 can be provided with small steps for limiting the wound display panel and blocking the gap. The connection method between the winding rod 3021, the upper crossbeam 602 and the display panel can be any one of bonding, pressing with a strip, buckling, etc.

[0103] Furthermore, one end of the lifting mechanism 601 is connected to the upper crossbeam 602 to control the upward movement of the upper crossbeam 602, thereby providing an upward acting force for the unfolding of the display panel. The other end is connected to the base 60, so that it is convenient to retract the display panel into the base.

[0104] Furthermore, the main function of the lifting mechanism 601 is to unfold the display panel and support the display surface to stand upright. The lifting mechanism 601 can be formed by combining parts such as a flexure arm and a telescopic rod, and the whole can present a V shape.

[0105] In addition, the reel mechanism 302 can also include a motor (not shown in the figure) that matches the winding rod 3021, which provides power for the winding and unwinding of the entire rollable TV. By controlling the motor to drive the movement of the winding rod 3021 and the lifting structure 601, the control of the TV winding and unwinding is realized.

[0106] Here, the display panel is rollable, so it is beneficial to the winding and unwinding of the TV. When needed, it can be unfolded for viewing, and when not needed, it can be wound up.

[0107] In Figure 11 Figures 1 - 3, the display panel 10 is wound into a curled cylindrical shape in the base 60, and the entire display panel is received into the base, greatly reducing the occupied space, facilitating storage and transportation; when not in use, it can be stored and hidden in the base, improving the aesthetics and the convenience of transportation, which is conducive to the popularization and application of the rollable TV and greatly expands the application scenarios. When winding, starting from the winding rod, the display surface of the display panel is placed on the inner side of the winding (close to the winding rod), the reinforcement layer is placed on the outer side of the winding, and they are wound layer by layer. Outward along the winding rod, they are the display surface of the display panel, the reinforcement layer, the display surface of the display panel, the reinforcement layer... The outermost layer is the reinforcement layer.

[0108] Further, when the TV of this embodiment is installed in a vehicle, the base can be installed on the roof. In this way, when the TV needs to be watched, it can be unfolded downward from the roof, and after being wound up, the TV can be hidden in the roof without occupying the interior space of the vehicle. Of course, the TV can also be hidden and installed under the vehicle floor. When the TV needs to be watched, it can be raised from the vehicle floor, also without occupying the interior space of the vehicle.

[0109] Further, auxiliary sections can also be provided on both sides of the display panel. The display panel is connected to the winding rod and the counterweight bar through the auxiliary sections. In this way, the display panel is not directly connected to the winding rod and the counterweight bar, which can further reduce the size of the display panel and the overall weight of the TV, facilitating packaging, transportation and installation.

[0110] Further, the auxiliary sections are also made of rollable materials, which can be the same as the backplane film layer material. Since the auxiliary sections are not used for display, a reinforcement structure layer can be provided on the auxiliary sections or not.

[0111] This application connects the display panel of Embodiment 1 with the base, the lifting structure, the upper cross beam, etc. to form a rollable TV, effectively solving the problem of bending deformation when the TV is unfolded after being wound up.

[0112] The above are only the preferred embodiments of the present utility model. It should be noted that the above preferred embodiments should not be regarded as a limitation of the present utility model. The protection scope of the present utility model should be subject to the scope defined by the claims. For those of ordinary skill in the art, several improvements and refinements can be made without departing from the spirit and scope of the present utility model, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A retractable display panel, characterized in that, Comprising: A polarizing film layer, a transparent substrate layer, a transparent anode layer, a light-emitting layer, a metal cathode layer, a backplane film layer, and a reinforcement structure layer are sequentially arranged from the display surface to the back surface. The reinforcement structure layer includes a plurality of continuously connected reinforcement units. Each reinforcement unit includes a base layer and a strengthening layer. The flexural strength of the base layer is less than or equal to that of the strengthening layer. The base layer and the strengthening layer are stacked to form an arc-shaped plate strip structure with at least two layers. The tops of the arc-shaped plate strip structures are distributed at intervals and connected to the backplane film layer.

2. The display panel according to claim 1, wherein The polarizing film layer sequentially includes a linear polarizing film and a circular polarizing film.

3. The display panel according to claim 2, wherein The included angle between the transmission axis of the circular polarizing film and the polarization direction of the transmitted light is 45°; the included angle between the transmission axis of the linear polarizing film and the polarization direction of the transmitted light is 90°.

4. The display panel according to claim 1, wherein The extending directions of the tops of the arc-shaped plate strip structures are parallel to each other.

5. The display panel according to claim 1, wherein The base layer is a single-layer or multi-layer composite material, and the strengthening layer is arranged on one side or opposite two sides of the base layer.

6. The display panel according to claim 1, characterized in that, Any adjacent reinforcement units are connected by an inverted arc-shaped plate strip structure.

7. The display panel according to claim 1, wherein The size coverage range of the reinforcement structure layer is equal to the display area of the display panel.

8. The display panel according to claim 1, wherein The height of the reinforcement unit is 4 mm to 20 mm, and the thickness is 2 mm to 10 mm.

9. A television, characterized in that, Comprising the display panel according to any one of claims 1 to 8, a box body, and a counterweight rod; a reel mechanism and a motor are arranged in the box body. The reel mechanism includes a winding rod, and the motor is connected to one end of the winding rod; one side edge of the display panel is connected to the winding rod, and the other side edge is connected to the counterweight rod.

10. A television, characterized in that, Comprising the display panel according to any one of claims 1 to 8, a base, a lifting mechanism, and an upper crossbeam; a reel mechanism is arranged on the base. The reel mechanism includes a winding rod, and the winding rod is connected to one side edge of the display panel. The other side edge of the display panel is connected to the upper crossbeam; one end of the lifting mechanism is connected to the upper crossbeam, and the other end is connected to the base.

Images