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 folded plate structures, and edges of the folded plate structures are arranged at intervals and are linearly 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] The present application relates to the technical field of televisions, and particularly to a retractable display panel and a television. Background Art

[0002] With the development of flexible display panel technology, flexible televisions have gradually come into 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 a television as large 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 also certain problems with flexible televisions, that is, when a flexible television is unfolded after being retracted, unevenness problems caused by bending deformation due to retraction often occur on the television screen. These bending deformations will cause deformation of the displayed image, thereby affecting the image display and viewing experience of the television. Summary of the Utility Model

[0003] To solve the above technical problems, the present 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, the unevenness problem of bending deformation that occurs when the display panel and / or the television is unfolded after being retracted is 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 the present application is as follows:

[0005] A retractable display panel includes: 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, which are sequentially arranged from the display surface to the back surface. The reinforcement structure layer includes a plurality of continuously connected reinforcement units. The reinforcement unit includes a base layer and a strengthening layer. The flexural strength of the base layer is less than or equal to the flexural strength of the strengthening layer. The base layer and the strengthening layer are stacked to form a folded plate structure with at least two layers. The edges of the folded plate structure are arranged at intervals and linearly connected to the backplane film layer.

[0006] The polarizing film layer, the transparent substrate layer, and the backplane film layer of the display panel 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 a folded plate structure, and the flexural strength of the strengthening layer is greater than or equal to the flexural strength of the base layer. In this way, the flexural strength of the reinforcement structure layer can be further improved through the strength enhancement of the strengthening layer, thereby overcoming the limitation of the reinforcement structure layer with a single-layer folded plate structure in enhancing the flexural strength. The reinforcement structure layer with this shape can also be curled. By providing the reinforcement structure layer on the backplane film layer, the flatness of the display panel can be greatly improved, and at the same time, the display panel can still be retracted, effectively solving the unevenness problem of bending deformation that occurs when the display panel is unfolded after being retracted.

[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 edges of the folding plate structure are parallel to each other.

[0011] The edges of the folding plate structure being parallel to each other is beneficial to providing a relatively uniform supporting force, ensuring the effective connection between the reinforcing 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 uniform winding and storage, and avoid excessive local bending to form creases.

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

[0013] Further, the widths of both side surfaces of the reinforcing unit are equal.

[0014] For continuously connected reinforcing units, the equal widths of both side surfaces enable the reinforcing units to provide balanced anti-bending forces and avoid the influence of the distortion of the reinforcing units themselves on the flatness of the display panel.

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

[0016] The full coverage of the size of the reinforcing structure layer on the display panel can provide more complete anti-bending support force to the display panel, and avoid local deformation of the display panel where the reinforcing structure layer is not covered locally.

[0017] Further, the height of the reinforcing unit is 5 mm to 20 mm, and the thickness is 4 mm to 10 mm.

[0018] The height and thickness of the reinforcing 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 winding.

[0019] A television includes the aforementioned display panel, 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.

[0020] A television, comprising the aforementioned display panel, a base, a lifting mechanism and an upper crossbeam; a reel mechanism is provided on the base, the reel mechanism includes a winding rod, the winding rod is connected to one side edge of the display panel, and 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.

[0021] In this application, by connecting the aforementioned display panel with a motor and a reel mechanism to form a retractable television, the problem of uneven bending deformation after the television is retracted and unfolded is effectively solved. Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of the display panel in Embodiment 1;

[0023] Figure 2 It is a schematic diagram of the shape of the reinforcing structure layer in Embodiment 1;

[0024] Figure 3 It is a schematic diagram of the connection between the reinforcing structure layer and the backplane film layer in Embodiment 1;

[0025] Figure 4 It is a schematic diagram of the relationship between the transmission axes of the components of the polarizing film layer in Embodiment 1 and the linear polarization direction of the transmitted light;

[0026] Figure 5 It is a schematic diagram of the folding plate structure in Embodiment 1;

[0027] Figure 6 It is a schematic diagram of the arrangement of the reinforcing layer on the base layer in Embodiment 1;

[0028] Figure 7 It is a schematic diagram of the side dimension of the reinforcing unit in Embodiment 1;

[0029] Figure 8 It is a schematic diagram of the dimensions of the reinforcing structure layer and the display panel in Embodiment 1;

[0030] Figure 9 It is a schematic diagram of the dimensions of the reinforcing unit in Embodiment 1;

[0031] Figure 10 It is a schematic diagram of the television in Embodiment 2;

[0032] Figure 11 It is a schematic diagram of the television in 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 - edge of the folded plate structure; 202 - side surface; 203 - base layer; 204 - reinforcing layer; 30 - box body; 301 - motor; 302 - reel mechanism; 3021 - winding rod; 40 - counterweight rod; 50 - television; 60 - base; 601 - lifting mechanism; 602 - upper cross beam. Specific embodiments

[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 specific embodiments.

[0035] Embodiment 1

[0036] Figure 1 FIG. is a schematic structural diagram of the display panel for Embodiment 1. A retractable 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 folded plate structure, and the edges 201 of the folded plate structure are arranged at intervals and linearly connected to the backplane film layer 106.

[0038] Further explanation, each reinforcing unit 200 on the reinforcing structure layer 107 is 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 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 the bending strength of the base layer. In this way, the bending strength of the base layer is doubled by the reinforcing layer, and the bending strength of the enhanced structural layer can be effectively improved, thereby solving the problem of uneven bending deformation when the display panel and / or the TV are unrolled after being wound up.

[0041] Further explanation: on one side of the folded plate structure formed by the reinforcing layer and the base layer, the cross-sectional shape of the reinforcing layer is not limited to that shown in the drawings of the present application, and can be rectangular, arc-shaped, trapezoidal, multi-curved, etc., because changing the cross-sectional shape of the reinforcing layer will not have a great impact on the mechanism of enhancing the bending strength of the enhanced structural layer itself.

[0042] Further explanation: 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 enhanced structural layer 107 is set as an enhanced unit 200 with a two-layer structure including a base layer 203 and a reinforcing layer 204 that are continuously connected, and the shape of the enhanced unit 200 is set as a folded plate structure, and the bending strength of the reinforcing layer 204 is greater than or equal to the bending strength of the base layer 203. In this way, the bending strength of the enhanced structural layer 107 can be further improved by enhancing the strength of the reinforcing layer 204, thereby overcoming the limitation of the enhanced structural layer of the single-layer folded plate structure in enhancing the bending strength, and the enhanced structural layer 107 of this shape can also be rolled. The enhanced structural layer 107 is arranged on the backplane film layer 106, greatly improving the flatness of the display panel 10, 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(phenylene vinylene), polythiophene, or a dye or pigment 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 and forming light to emit.

[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 material, 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, the hole transport layer transports the holes to the light-emitting layer, and 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, the electron transport transports the electrons to the light-emitting layer, and 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] Further, the material of the hole injection layer may be vapor-deposited silicon dioxide, lithium fluoride, etc.; the material of the electron injection layer may be lithium oxide, potassium silicate, lithium fluoride, etc.; the material of the hole transport layer may be a triarylamine compound; the material of the electron transport layer may be an aromatic compound such as 1,3,4-diazole or 1,2,4-triazole; the material of the electron blocking layer may be aluminum indium nitride and aluminum gallium nitride, etc.; the material of the hole blocking layer may be 3,5-tri(N-phenyl-2-benzimidazole)benzene or magnesium oxide-doped tin oxide quantum dots.

[0055] Figure 5 It is a schematic diagram of the folded plate structure of Example 1. All the edges of the folded plate structure are parallel to each other. The edges 201 of the folded plate structure are distributed on two opposite faces of the folded plate structure. Here, the edges of the folded plate structure being parallel to each other can mean that the edges 201 of the folded plate structure within the same face of the folded plate structure are parallel to each other, as shown in the face indicated by the arrow direction in Figure a of Figure 5 ; it can also mean that the edges 201 of the folded plate structure are parallel to each other in space, as shown in Figure b of Figure 5 . In this case, the edges 201 of the folded plate structure are not completely within the same face of the reinforcement structure layer 107, and at this time, the edges of the folded plate structure are parallel to each other in space.

[0056] For further explanation, the edges 201 of the folded plate structure being parallel to each other is beneficial for bending and providing a relatively uniform supporting force, ensuring the effective connection between the reinforcement structure layer 107 and the backplane film layer 106, and maintaining the flatness of the display panel 10. In particular, for the rollable display panel 10, it is beneficial for uniform winding and storage, and avoids excessive local bending to form creases.

[0057] Figure 6 It is a schematic diagram of the setting of the reinforcement layer on the base layer of Example 1. Reinforcement layers 204 are provided on two opposite faces of the base layer 203; as shown in Figure a of Figure 6 , reinforcement layers 204 are all provided on two opposite faces of the base layer 203; as shown in Figure b of Figure 6 , reinforcement layers 204 are provided at intervals on two faces of the base layer 203. Of course, as shown in the previous drawings, the reinforcement layer 204 can also be provided on only one face of the base layer 203.

[0058] Further, any two adjacent reinforcement units 200 can be connected by a connecting member. The cross-sectional shape of the connecting member can be linear, arc-shaped, etc. That is to say, the reinforcement units 200 are not isolated from each other, but are connected by a connecting member 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 at the connection between the reinforcement structure layer 107 and the display panel 10.

[0059] Figure 7 It is a schematic diagram of the side dimension of the enhancement unit in the first embodiment. The widths w of the sides 202 of the same enhancement unit 200 are equal. The continuously connected sides with equal widths can enable the folding plate structure to provide balanced bending resistance and avoid the influence of the distortion of the folding plate structure itself on the flatness of the display panel.

[0060] For further explanation, the equal widths of the sides 202 of the enhancement unit here can be, for example, Figure 7 as shown in Figure a in Figure 7 where the widths w of the sides 202 of all the enhancement units 200 on the enhancement structure layer 107 are equal; it can also be as shown in Figure b in

[0061] Figure 8 It is a schematic diagram of the dimensions of the enhancement structure layer and the display panel in the first embodiment. The length L and width K dimensions of the enhancement structure layer 107 are equal to the length and width dimensions of the display panel, that is, the dimensions of the enhancement structure layer 107 completely cover the display panel 10. By comprehensively covering the display panel 10 with the dimensions of the enhancement structure layer 107, more complete bending resistance support force can be provided to each position of the display panel 10, and local deformation of the display panel area without the enhancement structure layer covered can be avoided.

[0062] Figure 9 It is a schematic diagram of the dimensions of the enhancement unit in the first embodiment. The height D of the enhancement unit 200 is 5 mm to 20 mm, and the thickness d is 4 mm to 10 mm. It can be known that the height D and thickness d of the enhancement unit 200 can determine the amount of material used, the forming difficulty, the bending deformation strength of the formed enhancement structure layer, and the winding size of the display panel. Therefore, on the premise of meeting the bending strength of the enhancement structure layer 107, appropriate height and thickness are beneficial to cost saving and avoiding the winding size of the display panel from being too large and occupying too much space.

[0063] After research, when the height D of the enhancement unit is less than 5 mm and the thickness d is less than 4 mm, the difficulty of forming the enhancement structure layer will increase significantly, and the bending deformation strength of the formed enhancement 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, both the material usage amount and the winding size of the display panel increase significantly. The significant increase in the material usage amount results in the display panel being too heavy, and the too large winding size is not conducive to the packaging, transportation, and installation of the display panel, and will also reduce the service life of the display panel.

[0064] Further, the height D of the reinforcing unit can gradually decrease / increase along one direction, and the thickness d gradually increases / decreases along one direction. Additionally, the height D and thickness d of the reinforcing unit can also vary in the following ways: the height D varies in a trend along one direction while the thickness d remains unchanged; the thickness d varies in a trend along one direction while the height D remains unchanged.

[0065] Further, on the side of the reinforcing structure layer away from the display surface of the display panel, a protective film layer can also 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.

[0066] Embodiment 2

[0067] 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 in 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.

[0068] 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.

[0069] A winding rod 3021 and a motor 301 are provided in 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 301 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.

[0070] 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, welding, etc. The winding rod can use different involute - structured reels to improve the height difference problem at the connection between the winding rod 3021 and the display panel 10. 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 for limiting the rolled - up display panel and covering 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.

[0071] 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 that the lower end of the display panel sways due to the influence of wind or slight external force.

[0072] 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 housed in the box body, 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 reinforcement layer 107 is placed on the outer side of the winding. They are wound layer by layer. Along the winding rod 3021 outward, they are the display surface of the display panel 10, the reinforcement layer 107, the display surface of the display panel 10, the reinforcement layer 107... The outermost layer is the reinforcement layer 107.

[0073] Furthermore, auxiliary sections can also be set 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, reduce the overall weight of the TV, and is beneficial to packaging, transportation, and installation.

[0074] Furthermore, the auxiliary section is also made of a material that can be curled, and it can be the same material as the back - plate film layer 106. Since the auxiliary section is not used for display, an enhancement structure layer 107 can be set on the auxiliary section, or the enhancement structure layer 107 can not be set.

[0075] Further, regarding the specific description of the flexural strength in the solution of the present 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".

[0076] Flexural Stability Test of the TV in Embodiment 2

[0077] 1. Selection of Samples

[0078] Sample 1: 30-inch display screen corresponding to Embodiment 2 of the present application;

[0079] Sample 2: 50-inch display screen corresponding to Embodiment 2 of the present application;

[0080] Sample 3: 70-inch display screen corresponding to Embodiment 2 of the present application;

[0081] Sample 4: 90-inch display screen corresponding to Embodiment 2 of the present application;

[0082] Sample 5: 100-inch display screen corresponding to Embodiment 2 of the present application;

[0083] 2. Appearance Inspection

[0084] Samples 1 to 5 are subjected to heat resistance, cold resistance, humidity resistance and thermal cycle tests:

[0085] Heat resistance test: The above samples are placed in a high and low temperature cycle box at 60°C for 48 h.

[0086] Cold resistance test: The above samples are placed in a high and low temperature cycle box at -40°C for 48 h.

[0087] Humidity resistance test: The above samples are placed in a high and low temperature cycle box at 40°C and a relative humidity of 90% for 48 h.

[0088] Thermal cycle test: The above samples are placed at -20°C and 60°C for 12 h each, for 3 cycles.

[0089] After the test, the samples are visually inspected at a point with ambient light above 500 lx, and the inspection results are shown in Table 1.

[0090] Table 1

[0091] 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

[0092] It can be seen from Table 1 that no bending occurs after Samples 1 to 5 have undergone heat resistance, cold resistance, humidity resistance and thermal cycle tests.

[0093] 3. Performance Stability Test

[0094] The unwinding and rewinding operations are performed on Samples 1 to 5, and one complete rewinding and unwinding process is recorded as one cycle. Observe whether there are bending and deformation problems with Samples 1 to 5 after 500, 2000, 5000, and 10000 cycles. The test results are shown in Table 2.

[0095] Table 2

[0096]

[0097]

[0098] As can be seen from Table 2: Samples 1 to 5 did not show bending and deformation after 500, 2000, 5000, and 10000 cycles. That is to say, the TV of the embodiment of the present application has good stability, no bending and deformation problems, the flatness of the TV is guaranteed, and the display effect is ensured. Therefore, the TV of this embodiment can effectively avoid the unevenness problem of bending and deformation.

[0099] Furthermore, the present application effectively solves the bending and deformation problem of the TV after unwinding by connecting the display panel of Embodiment 1 with a motor, a reel mechanism, etc.

[0100] Embodiment 3

[0101] Figure 11 It is a schematic diagram of the TV of Embodiment 3. Figure 11 In the figure, 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 rewound state diagram of the TV.

[0102] 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, and 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.

[0103] 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" shape, "T" shape, or special shape. The winding rod 3021 is provided thereon, and the winding rod 3021 is connected to one side edge of the display panel 10. The winding rod 3021 is mainly used for winding the display panel, and 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.

[0104] Further, 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, snap connection, etc.

[0105] Further, 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 contract the display panel into the base.

[0106] Further, 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.

[0107] In addition, the reel mechanism 6302 can also include a motor (not shown in the figure) that matches the winding rod 3021 to provide power for the winding and unwinding of the entire retractable 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.

[0108] Here, the display panel is retractable, 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.

[0109] In Figure 11 Figs. 1-3, the display panel 10 is wound into a curled cylindrical shape in the base 60, and the entire display panel is received in 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 beneficial to the popularization and application of the retractable 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), and the reinforcement structure layer is placed on the outer side of the winding. It is wound layer by layer. Along the winding rod outwards, it is the display surface of the display panel, the reinforcement structure layer, the display surface of the display panel, the reinforcement structure layer... The outermost layer is the reinforcement structure layer.

[0110] 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 retracted, 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.

[0111] Further, auxiliary sections can also be provided on both sides of the display panel and 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 rod, which can further reduce the size of the display panel and the overall weight of the TV, facilitating packaging, transportation, and installation.

[0112] Further, the auxiliary section is also made of a rollable material, which can be the same as the material of the backplane film layer. Since the auxiliary section is not used for display, a reinforcing structure layer can be provided on the auxiliary section, or it can be not provided.

[0113] This application effectively solves the problem of bending deformation after the TV is unfolded after being retracted by connecting the display panel of Embodiment 1 to the base, the lifting structure, the upper cross beam, etc. to form a retractable TV.

[0114] 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 in this technical field, without departing from the spirit and scope of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as within 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 reinforcing structure layer are sequentially arranged from the display surface to the back surface. The reinforcing structure layer includes a plurality of continuously connected reinforcing units. Each reinforcing unit includes a base layer and a reinforcing layer. The flexural strength of the base layer is less than or equal to that of the reinforcing layer. The base layer and the reinforcing layer are stacked to form a folded plate structure with at least two layers. The edges of the folded plate structure are arranged at intervals and linearly 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, characterized in that, The edges of the folded plate structure 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 reinforcing layer is provided on one side or opposite two sides of the base layer.

6. The display panel according to claim 1, wherein The widths of the two side surfaces of the reinforcing unit are equal.

7. The display panel according to claim 1, wherein The size coverage range of the reinforcing 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 reinforcing unit is 5 mm to 20 mm, and the thickness is 4 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