Display device

Abstract

The application discloses a display device, comprising a display panel and a backlight module. The backlight module comprises a back plate, a reflective sheet and the like. The reflective sheet is provided with a saddle stitch line to divide the reflective sheet into a bending part and a reflecting part. The saddle stitch line comprises a plurality of saddle stitch segments. Opposite ends of at least two adjacent saddle stitch segments are provided with extension segments. The extension direction of the extension segment forms an angle with the extension direction of the saddle stitch segment where the extension segment is located. The extension segments on two adjacent saddle stitch segments on the reflective sheet of the display device disclosed by the application are extended through the hollow part of the saddle stitch segment, so that the solid part near the whole saddle stitch line is reduced, and the part of the reflective sheet provided with the saddle stitch line is easy to fold. Since the extension segment forms an angle with the saddle stitch segment, the position of the extension segment deviates from the position of the saddle stitch line. Although the extension segment increases the hollow part on the reflective sheet, the connection strength of the position of the saddle stitch line is not affected. The bending property of the reflective sheet is improved, and the connection strength of the bending part and the reflecting part is ensured.

Description

Technical Field

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

[0002] In related technologies, display devices such as televisions and computer screens are typically used to display information content, provide entertainment, and facilitate interaction, thereby satisfying users' needs for information acquisition and entertainment in their daily lives.

[0003] Display devices typically include display panels and backlight modules. Backlight modules usually consist of a backplate and optical films such as diffusers and reflective sheets. During backlight module installation, the reflective sheet needs to be bent along the shape of the backplate to ensure effective mounting. However, due to the hardness of the reflective sheet, it is often necessary to cut a seam along the seam before bending. Even after cutting the seam, the sheet's rigidity requires technicians to bend it along the seam once, but this is difficult to achieve the correct bending position, or the bent portion of the reflective sheet may spring back. Therefore, a second bending is required when mounting the reflective sheet onto the backplate, increasing the installation steps and impacting production efficiency. Utility Model Content

[0004] This application discloses a display device that improves the problem of repeated bending of the reflective sheet in the display device.

[0005] To achieve the above objectives, this application discloses a display device, comprising:

[0006] Display panel;

[0007] A backlight module, wherein the backlight module is disposed on the backlight side of the display panel, the backlight module comprising:

[0008] Back panel;

[0009] A backlight source is located on the side of the back panel facing the display panel;

[0010] A reflective sheet is disposed on the side of the back plate facing the display panel;

[0011] A diffuser plate is disposed on the side of the reflective sheet opposite to the back plate;

[0012] The reflective sheet has a seam across it, the seam being configured such that the reflective sheet includes:

[0013] A reflective portion, which is configured to reflect the light from the backlight source;

[0014] The bent portion is connected to the outer periphery of the reflective portion to form the edge of the reflective portion, and the bent portion is capable of bending relative to the reflective portion along the seam line to overlap the edge of the back panel.

[0015] The seam allowance includes:

[0016] Multiple seam segments are provided at intervals along the extension direction of the corresponding edge of the reflective portion. Among the multiple seam segments, at least two adjacent seam segments have an extension segment at their opposing ends. The extension direction of the extension segment forms an angle with the extension direction of the seam segment in which it is located.

[0017] In the display device of this application, a seam line is provided near the edge of the reflective sheet, dividing the reflective sheet into a reflective portion and a bending portion. This seam line includes multiple seam segments. Since the seam segments on the reflective sheet are constructed as hollow sections, the solid structure at the location of the seam line is reduced, allowing the bending portion to be bent relative to the reflective portion. However, considering the structural strength of the reflective sheet at the seam line, the number or length of these seam segments is usually constant, which still presents some difficulty during bending. Therefore, this application provides an extension segment at the opposing ends of at least two adjacent seam segments, with the extension direction of the extension segment forming an angle with the extension direction of its corresponding seam segment. This extension segment further extends the seam segment, increasing the hollow portion on the reflective sheet and reducing the solid portion near the seam line, thus further facilitating the folding of the bending portion. Simultaneously, since the extension segment is angled relative to the seam segment, its location is offset from the location of the seam line. That is, although the extended section adds a hollow part on the reflective sheet, it does not affect the connection strength at the location of the seam. This achieves the goal of improving the bendability of the reflective sheet while also taking into account the connection strength between the bent part and the reflective part. As a result, the reflective sheet can be folded into shape at the back plate in one go, which is convenient and helps to improve the ease of installation of the backlight module.

[0018] As some alternative implementations, the angle formed by the extension direction of the outer extension and the extension direction of the seam segment is α, satisfying: 30°≤α≤60°.

[0019] In this application, the angle α between the extension direction of the epitaxial segment and the extension direction of the seam-spanning segment is controlled within 30°-60°. On one hand, if the angle α is too small (i.e., α < 30°), the extension direction of the epitaxial segment is close to the extension direction of the seam-spanning segment. This could reduce the solid portion of the reflective sheet between two adjacent seam-spanning segments, potentially lowering the connection strength between the bent portion and the reflective portion. On the other hand, if the angle α is too large (i.e., α > 60°), the angle between the extension direction of the epitaxial segment and the extension direction of the seam-spanning segment is close to 90°. The mobility of the hollow portion formed by the epitaxial segment and the seam-spanning segment is also poor, making it difficult to bend the bent portion relative to the reflective portion. In other words, by controlling the angle α within 30°-60°, the mobility of the hollow portion formed by the epitaxial segment and the seam-spanning segment is optimal, facilitating the bending of the bent portion relative to the reflective portion while maintaining the connection strength between the bent portion and the reflective portion.

[0020] As some alternative implementations, for multiple slit segments located on the same edge of the reflective portion, the projections of the opposing ends of two adjacent slit segments onto the reflective sheet form a connecting line, and a straight line orthogonal to the midpoint of the connecting line is constructed as a centerline, and the two extension segments on the opposing ends of two adjacent slit segments are symmetrically arranged relative to the centerline.

[0021] In this application, two extension segments are respectively provided at the opposing ends of two adjacent seam segments, and the two extension segments are symmetrically arranged with respect to the centerline. Thus, the solid portion of the reflective sheet between the two extension segments is also symmetrically arranged with the centerline as the axis of symmetry. When the bent portion bends relative to the reflective portion, it is mainly the solid portion of the reflective sheet between the two extension segments that bends. Because this solid portion is symmetrically arranged with the centerline as the axis of symmetry, the force and bending deformation are uniform during relative bending, making the reflective sheet relatively less strenuous during bending.

[0022] As some alternative implementations, the extension segment located at one end of the same seam segment is two segments, one of which extends toward the bent portion and the other extends toward the reflective portion, so that the extension directions of the two extension segments are also set at an angle.

[0023] When this application provides an extension segment at the end of the seam-swapping segment, two extension segments can be provided: one extending towards the bent portion and the other extending towards the reflective portion. This creates an angle between the two extension segments, further expanding the hollow portion formed by the seam-swapping segment and the extension segments, while the solid portion between adjacent seam-swapping segments is not reduced. In other words, while improving the mobility between the reflective portion and the bent portion, the connection strength between the bent portion and the reflective portion is maintained, preventing the bent portion from breaking off relative to the reflective portion.

[0024] As some alternative implementations, the included angle formed by the extending directions of the two extensions located at one end of the same seam segment is β, satisfying: 60°≤β≤120°.

[0025] This application controls the included angle β formed by the extending directions of two extension segments located at one end of the same seam segment to be between 60° and 120°. On the one hand, controlling the included angle β to be no less than 60° is beneficial. When the included angle β is too small, i.e., β is less than 60°, the two extension segments are too close together, and the two extension segments may move closer to the solid portion between the two adjacent seam segments, resulting in a reduction in the solid portion and potentially weakening the connection strength of the solid portion. Alternatively, the two extension segments may move closer to the seam segment, resulting in a reduction in the solid portion between the seam segment and the extension segments, which may also weaken the connection strength between the bent portion and the reflective portion. On the other hand, controlling the included angle β to be no greater than 120° is also beneficial. When the included angle between the two extension segments is too large, i.e., β > 120°, the included angle between the two extension segments and their respective seam segments may be too large, resulting in an excessive amount of solid portion between the two extension segments and the seam segment. The material of the solid portion is relatively hard, which may cause interference when the bent portion and the reflective portion are bent relative to each other, affecting the ease of bending the reflective sheet.

[0026] As some optional implementations, in two adjacent seam segments, the extension segments provided on the opposite ends of the two seam segments are arranged opposite each other, and when the bent portion is bent relative to the reflective portion, a crease is formed between the two oppositely arranged extension segments.

[0027] In one of the two adjacent seam segments, the two outer segments of one seam segment, the two outer segments of the other seam segment, and the two creases cause the portion of the reflective sheet located at the interval between the two adjacent seam segments to be constructed as a hexagon.

[0028] In this application, when the extended segments on the opposing ends of two adjacent seam lines are arranged opposite each other, the two extended segments on one seam line are respectively arranged opposite to the two extended segments on the other seam line. In this way, the length of the solid portion of the reflective sheet of the two opposing extended segments is shorter than the solid portion between the opposing ends of the two adjacent seam lines. When the bent portion is bent relative to the reflective portion, the solid portion of the reflective sheet of the two opposing extended segments is shorter and easier to bend. Therefore, the two sets of opposing extended segments form two creases, and the two creases and four extensions construct a hexagonal portion of the reflective sheet at the interval between the two adjacent seam lines. That is, when bending the reflective sheet, the solid portion of the reflective sheet between the two opposing extended segments can be bent, as this portion is shorter and easier to bend, facilitating the mounting of the reflective sheet on the back plate.

[0029] As some alternative implementations, along the extension direction of the seam line, the distance between the opposing ends of two adjacent seam segments is d, satisfying: 1mm < d < 5mm.

[0030] In this application, the spacing d between the opposing ends of two adjacent seam segments is controlled within 1mm-5mm. On one hand, controlling d to be no less than 1mm is crucial. If d is less than 1mm, the short distance between the two adjacent seam segments may reduce the solid portion of the reflective sheet, decreasing the connection strength between the reflective and bent portions. Furthermore, an excessively small d may affect the position of the extension segment, making it difficult to cut the extension segment onto the reflective sheet. On the other hand, controlling d to be no greater than 5mm is also important. If d is greater than 5mm, the solid portion of the reflective sheet between the two adjacent seam segments increases, potentially making it difficult to bend the bent portion relative to the reflective portion, hindering the bending operation of the reflective sheet. Therefore, this application controls d within 1mm-5mm, preserving the position for cutting the extension segment, ensuring the connection strength between the bent portion and the reflective portion, and facilitating bending of the bent portion relative to the reflective portion.

[0031] As some alternative implementations, the length of the extension segment is L, satisfying: 0mm < L < 3mm.

[0032] In this application, the length L of the extension segment is set to satisfy the condition: 0mm < L < 3mm. On one hand, this prevents L from being 0mm, meaning that at least a portion of the extension segment is provided at the end of the seam segment, making it easier to bend the solid portion of the reflective sheet between the two seam segments. On the other hand, it controls L to not exceed 3mm. If the length L of the extension segment is greater than 3mm, the extension segment opposite to the opposite end of another adjacent seam segment may connect with it. This could lead to the bent portion being cut off relative to the reflective portion during the cutting process, affecting the connection between the bent portion and the reflective portion. Therefore, this application controls the length L of the extension segment to be between 0mm and 3mm, which not only makes it easier to bend the solid portion of the reflective sheet between the two seam segments but also avoids the bent portion being cut off relative to the reflective portion, maintaining the connection between the bent portion and the reflective portion.

[0033] As some alternative implementations, the extension segment is constructed as a curved segment, wherein the line connecting the two endpoints of the projection of the curved segment onto the reflector is set at an angle to the extension direction of the saddle segment.

[0034] In setting the shape of the cut-out extension segment, the extension segment can be constructed as a curved segment, that is, the extension segment can be wavy or arc-shaped, etc. After constructing the extension segment as a curved segment, when the extension segment is constructed into different shapes, with the length of the connecting line being equal, the hollow portion of the extension segment is larger when the extension segment is constructed as a curved segment, so as to minimize the solid portion between the connection between the bent portion and the reflective portion, thereby improving the ease of bending the bent portion relative to the reflective portion.

[0035] As some alternative implementations, the extension segments are provided at both ends of the seam-riding section along the extension direction of the seam-riding line.

[0036] When the extension section is provided at the end of the seam segment in this application, the extension section can be provided at both ends of the seam segment. That is, an extension section is provided at the opposing ends of any two adjacent seam segments, so that the solid part of the reflective sheet between each two seam segments is partially hollowed out by the extension section, thereby increasing the hollowed-out part of the entire seam line, and thus reducing the solid part at the connection between the bent part and the extension section, so as to facilitate the bending of the reflective sheet.

[0037] Compared with the prior art, this application has at least the following beneficial effects:

[0038] In the display device of this application, a seam line is provided near the edge of the reflective sheet, dividing the reflective sheet into a reflective portion and a bending portion. This seam line includes multiple seam segments. Since the seam segments on the reflective sheet are constructed as hollow sections, the solid structure at the location of the seam line is reduced, allowing the bending portion to be bent relative to the reflective portion. However, considering the structural strength of the reflective sheet at the seam line, the number or length of these seam segments is usually constant, which still presents some difficulty during bending. Therefore, this application provides an extension segment at the opposing ends of at least two adjacent seam segments, with the extension direction of the extension segment forming an angle with the extension direction of its corresponding seam segment. This extension segment further extends the seam segment, increasing the hollow portion on the reflective sheet and reducing the solid portion near the seam line, thus further facilitating the folding of the bending portion. Simultaneously, since the extension segment is angled relative to the seam segment, its location is offset from the location of the seam line. That is, although the extended section adds a hollow part on the reflective sheet, it does not affect the connection strength at the location of the seam. This achieves the goal of improving the bendability of the reflective sheet while also taking into account the connection strength between the bent part and the reflective part. As a result, the reflective sheet can be folded into shape at the back plate in one go, which is convenient and helps to improve the ease of installation of the backlight module. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the structure of the display panel disclosed in the embodiments of this application;

[0041] Figure 2 This is an exploded view of the display panel disclosed in the embodiments of this application;

[0042] Figure 3 This is a schematic diagram of the structure of the reflective sheet disclosed in the embodiments of this application;

[0043] Figure 4 for Figure 3 The first enlarged schematic diagram at point A in the middle;

[0044] Figure 5 for Figure 3 The second enlarged schematic diagram at point A in the middle;

[0045] Figure 6 for Figure 3 The third enlarged schematic diagram at point A;

[0046] Figure 7 for Figure 3 The fourth enlarged schematic diagram at point A;

[0047] Figure 8 for Figure 3 The fifth enlarged schematic diagram at point A;

[0048] Figure 9 for Figure 3 The sixth enlarged schematic diagram at point A;

[0049] Figure 10 for Figure 3 The seventh enlarged schematic diagram at point A in the middle.

[0050] Explanation of reference numerals in the attached figures:

[0051] 100. Display device; 10. Display panel; 20. Backlight module; 1. Back plate; 2. Backlight source; 3. Reflective sheet; 31. Seam line; 311. Seam section; 312. Extension section; 32. Reflective part; 33. Bending part; 3a. Opening; 3b. Center line; 3c. Crease; 4. Diffuser plate. Detailed Implementation

[0052] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0053] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," and "middle," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0054] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0055] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0056] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0057] In related technologies, display devices such as televisions and computer screens are typically used to display information content, provide entertainment, and facilitate interaction, thereby satisfying users' needs for information acquisition and entertainment in their daily lives.

[0058] Display devices typically include display panels and backlight modules. Backlight modules usually include a backplate and optical films such as diffusers, reflective sheets, brightness enhancement films, and composite films. During installation, the reflective sheet needs to be bent along the shape of the backplate to ensure effective mounting. However, due to the hardness of the reflective sheet material, it is often necessary to cut a seam line along the reflective sheet before bending. After cutting the seam line, the reflective sheet, due to its relatively hard material (e.g., white reflective sheets are typically made of white polyester or white polypropylene), needs to be bent once along the seam line before being installed onto the backplate. However, this bending is difficult to achieve, or the bent portion of the reflective sheet may spring back. Therefore, a second bending is required when installing the reflective sheet onto the backplate, increasing the installation process and impacting production efficiency. Increasing the number of open sections along the seam to improve the flexibility of the reflective sheet may result in a lower connection strength between the bent and reflective parts of the sheet, affecting its lifespan.

[0059] Based on this, this application discloses a display device in which, when a seam is provided on a reflective sheet, an extension segment is provided on the opposing ends of at least two adjacent seam segments in the seam. On the one hand, the extension segment increases the hollow portion of the reflective sheet near the seam, thereby improving the bendability of the connection between the bent portion and the reflective portion. On the other hand, the extension direction of the extension segment is set at an angle to the extension direction of the seam segment, so that the extension segment deviates from the seam, thereby avoiding weakening the strength of the solid portion of the reflective sheet between the opposing ends of the two adjacent seam segments and improving the connection strength between the bent portion and the reflective portion.

[0060] The technical solution of this application will be further described below with reference to the embodiments and accompanying drawings.

[0061] Please see Figure 1 as well as Figure 2 This application discloses a display device 100, including a display panel 10 and a backlight module 20, wherein the backlight module 20 is disposed on the backlight side of the display panel 10.

[0062] In some embodiments, the display panel 10 includes a liquid crystal molecule layer (not shown), in which the liquid crystal molecules change their arrangement under the action of an electric field, thereby controlling whether light passes through to form an image.

[0063] In some embodiments, the display panel 10 includes thin-film transistors responsible for controlling the on / off state of each pixel. These transistors adjust the orientation of liquid crystal molecules via voltage signals, thereby affecting light transmittance.

[0064] In some embodiments, the display panel 10 includes an ITO (indium tin oxide) transparent conductive layer (not shown), which is used to form electrodes on a glass substrate, allowing current to pass through to control the alignment of liquid crystal molecules.

[0065] In some embodiments, the display panel 10 includes a glass substrate (not shown), comprising upper and lower glass substrates, with liquid crystal molecules injected between the two substrates. A thin-film transistor is typically disposed on the lower substrate for controlling the voltage of each pixel.

[0066] In some embodiments, the backlight module 20 includes a backplate 1 located on the backlight side of the display panel 10.

[0067] In some embodiments, the backlight module 20 includes a backlight source 2, which is disposed on the side of the back panel 1 facing the display panel 10. Since liquid crystal molecules themselves do not emit light, the display device 100 requires the backlight source 2 to provide light. The backlight source 2 typically uses LED technology to ensure uniform light distribution and improve brightness.

[0068] In some embodiments, the backlight module 20 includes a reflective sheet 3 disposed on the side of the backplate 1 facing the display panel 10. By reflecting the light from the backlight source 2, the reflective sheet 3 can enhance the intensity of light illuminating the liquid crystal layer, thereby improving the brightness of the display panel 10.

[0069] In some embodiments, the reflector 3 is provided with an opening 3a so that the backlight 2 mounted on the back plate 1 is exposed on the reflector 3.

[0070] In some embodiments, the backlight module 20 includes a diffuser plate 4, which is used in liquid crystal displays, LED lighting and imaging display systems. Its main function is to fully scatter the incident light to achieve a softer and more uniform illumination effect.

[0071] Please see Figure 3 In some embodiments, the reflective sheet 3 is provided with a seam 31, which is configured such that the reflective sheet 3 includes a reflective portion 32 and a bent portion 33. The reflective portion 32 is configured to reflect the light from the backlight 2. The bent portion 33 is connected to the outer periphery of the reflective portion 32 to form the edge of the reflective portion 32, and the bent portion 33 is capable of bending relative to the reflective portion 32 along the seam 31 to overlap the edge of the backplate 1.

[0072] For example, the solid part of the reflective sheet 3 can be cut with a knife or laser tool to make the reflective sheet part hollow, so that the hollow part is constructed as a seam 31. Since part of the solid part of the reflective sheet 3 is cut, the two parts separated by the seam 31 are relatively easy to bend, so that the reflective sheet 3 is divided into a bent part 33 and a reflective part 32.

[0073] Understandably, because the bent portion 33 is bent relative to the reflective portion 32, the bent portion 33 can more easily overlap the edge of the back plate 1.

[0074] In some embodiments, the seam line 31 includes a plurality of seam segments 311, which are spaced apart along the extension direction of the edge of the corresponding reflective portion 32. Among the plurality of seam segments 311, at least two adjacent seam segments 311 have an extension segment 312 at their opposite ends, and the extension direction of the extension segment 312 forms an angle with the extension direction of the seam segment 311 to which it is located.

[0075] It is understandable that the shape of the display panel 10 is usually square, the shape of the reflective sheet 3 is correspondingly set to square, and the extension direction of the seam 31 can be the length direction or the width direction of the reflective sheet 3.

[0076] For example, such as Figure 3 In the example, X indicates the length direction of the reflector 3, and Y indicates the width direction of the reflector 3.

[0077] It is understandable that the reflector 3 is square, and each of the four edges of the reflector 3 is provided with a seam 31 so that the four edges of the reflector 3 can be bent relative to each other to overlap the four edges of the square back plate 1.

[0078] In the display device 100 of this application, a seam line 31 is provided near the edge of the reflective sheet 3, dividing the reflective sheet 3 into a reflective portion 32 and a bent portion 33. The seam line 31 includes multiple seam segments 311. Since the seam segments 311 on the reflective sheet 3 are partially hollowed out, the solid structure at the location where the seam line 31 is provided is reduced, thereby allowing the bent portion 33 to be bent relative to the reflective portion 32. However, considering the structural strength of the reflective sheet 3 at the seam line 31, the number or length of the seam segments 311 is usually constant, which makes bending still somewhat difficult. Based on this, this application provides an extension segment 312 at the opposing ends of at least two adjacent seam segments 311, and the extension direction of the extension segment 312 forms an angle with the extension direction of the seam segment 311 to which it is located. In this way, the extension segment 312 can further extend the seam-crossing segment 311, increasing the hollow portion on the reflective sheet 3 and reducing the solid portion near the seam-crossing line 31, thus facilitating the folding of the bent portion 33. Simultaneously, since the extension segment 312 is set at an angle relative to the seam-crossing segment 311, that is, the position of the extension segment 312 is offset from the position of the seam-crossing line 31. That is, although the extension segment 312 increases the hollow portion on the reflective sheet 3, it does not affect the connection strength at the position of the seam-crossing line 31. This achieves both improved bendability of the reflective sheet 3 and consideration of the connection strength between the bent portion 33 and the reflective portion 32, enabling the reflective sheet 3 to be folded into shape in one step at the backplate 1, facilitating operation and improving the ease of installation of the backlight module 20.

[0079] In some embodiments, multiple seam segments 311 are arranged sequentially at intervals along the extension direction of the edge of the reflective sheet 3 to form seam lines 31.

[0080] For example, multiple seam segments 311 are arranged in a straight line on the reflective sheet 3, so that the seam lines 31 are arranged in a row.

[0081] Please see Figure 3 In some embodiments, one edge of the reflective sheet 3 includes at least two seam lines 31.

[0082] It is understandable that the back panel 1 of some display panels 10 has a certain depth. The back panel 1 includes a bottom surface and a side wall surface. Two seam lines 31 at the edge of the reflective sheet 3 divide the reflective sheet 3 into three parts. The first part overlaps at the edge of the back panel 1, the second part is connected to the side wall surface of the back panel 1, and the third part, namely the reflective part 32, is connected to the bottom surface of the back panel 1.

[0083] Since the seam 31 adopts the seam section 311 plus the extension section 312 designed in this application, the reflective sheet 3 is easy to bend to fit the shape of the back plate 1.

[0084] Please see Figure 4 In some embodiments, the angle formed by the extension direction of the extension segment 312 and the extension direction of the seam segment 311 is α, satisfying: 30°≤α≤60°.

[0085] It is understandable that when the extension direction of the extension segment 312 provided at the end of a seam segment 311 forms an angle with the extension direction of the seam segment 311, the direction of the angle can be towards the seam segment 311 or towards the adjacent seam segment 311.

[0086] Please see Figure 4 and Figure 5 In other words, at the opposing ends of two adjacent seam segments 311, the orientation of the two extension segments 312 can be mutually oriented or mutually opposed, or one segment can be oriented and the other can be opposed. To facilitate understanding of the solution of this application, the following explanation will take the example of the extension segments 312 at the opposing ends of two adjacent seam segments 311 being mutually oriented.

[0087] For example, the included angle α can be 30°-35°, 35°-40°, 45°-50°, 50°-55°, or 55°-60°. For instance, the included angle α can be 30°, 33°, 35°, 37°, 40°, 43°, 45°, 47°, 50°, 53°, 55°, 57°, or 60°, etc.

[0088] In this application, when setting the angle between the extension direction of the extension segment 312 and the extension direction of the seam-riding segment 311, the angle α is controlled between 30° and 60°. On the one hand, if the angle α is too small, i.e., α < 30°, the extension direction of the extension segment 312 is close to the extension direction of the seam-riding segment 311. The extension segment 312 may reduce the solid portion of the reflective sheet 3 between two adjacent seam-riding segments 311, which may reduce the connection strength between the bent portion 33 and the reflective portion 32. On the other hand, if the angle α is too large, i.e., α > 60°, the angle between the extension direction of the extension segment 312 and the extension direction of the seam-riding segment 311 is close to 90°. The mobility of the hollow portion formed by the extension segment 312 and the seam-riding segment 311 is also poor, making it difficult for the bent portion 33 to bend relative to the reflective portion 32. In other words, when the included angle α is controlled between 30° and 60°, the open portion formed by the extension segment 312 and the seam segment 311 has the best mobility, so that the bent portion 33 can be bent relative to the reflective portion 32 and the connection strength between the bent portion 33 and the reflective portion 32 can be guaranteed.

[0089] Please see Figure 4In some embodiments, for multiple slit segments 311 located on the same edge of the reflective portion 32, the projections of the opposing ends of two adjacent slit segments 311 onto the reflective sheet 3 form a connecting line, and a straight line orthogonal to the midpoint of the connecting line is constructed as a centerline 3b. The two extension segments 312 on the opposing ends of the two adjacent slit segments 311 are symmetrically arranged relative to the centerline 3b.

[0090] In this application, two extension segments 312 are respectively provided at the opposing ends of two adjacent seam segments 311, and the two extension segments 312 are symmetrically arranged with respect to the center line 3b. Thus, the solid portion of the reflective sheet 3 between the two extension segments 312 is also symmetrically arranged with the center line 3b as the axis of symmetry. When the bent portion 33 bends relative to the reflective portion 32, it is mainly the solid portion of the reflective sheet 3 between the two extension segments 312 that bends. Because this solid portion is symmetrically arranged with the center line 3b as the axis of symmetry, the solid portion experiences uniform force and bending deformation during relative bending, making it relatively easy and effortless to bend the reflective sheet 3.

[0091] For example, when the outer extensions 312 on the opposing ends of two adjacent seam segments 311 face each other and are stacked around the centerline 3b, the solid portion between the two opposing outer extensions 312 is less than the solid portion between the opposing ends of the two adjacent seam segments 311, making it easier to bend. Furthermore, the solid portions are symmetrically distributed, resulting in uniform force during bending, which further facilitates the bending of the bending portion 33 relative to the reflecting portion 32.

[0092] Please see Figure 6 In some embodiments, the included angle formed by the extension directions of the two extension segments 312 located at one end of the same seam segment 311 is β, which satisfies: 60°≤β≤120°.

[0093] It is understandable that when the included angle β formed by the extension directions of the two extension segments 312 located at one end of the same seam segment 311 satisfies the condition that 60°≤β≤120°, the extension directions of the two extension segments 312 are aligned. For example, both extension segments 312 are oriented toward the adjacent seam segment 311, or both extension segments 312 are oriented toward the seam segment 311 itself.

[0094] Please see Figure 6 and Figure 7 For example, when both extension segments 312 are facing the adjacent seam segment 311, the shape formed by the two extension segments 312 and the seam segment 311 is "Y" shaped, or when both extension segments 312 are facing the seam segment 311 itself, the two extension segments 312 and the seam segment 311 are constructed into an arrow shape.

[0095] For example, the included angle β can be 60°-70°, 70°-80°, 80°-90°, 90°-100°, 100°-110°, 110°-120°, etc. For instance, the included angle β can be 60°, 65°, 70°, 75°, 80°, 85°, 90°, 95°, 100°, 105°, 110°, 115°, or 120°, etc.

[0096] This application controls the included angle β formed by the extending directions of two extension segments 312 located at one end of the same seam segment 311 to be between 60° and 120°. On the one hand, the included angle β is controlled to be no less than 60°. When the included angle β is too small, that is, when β is less than 60°, the two extension segments 312 are too close together. The two extension segments may move closer to the solid portion between the two adjacent seam segments 311, resulting in a reduction of the solid portion and a possible weakening of the connection strength of the solid portion. Alternatively, if the two extension segments 312 move closer to the seam segment 311, resulting in a reduction of the solid portion between the seam segment 311 and the extension segments 312, it may also weaken the connection strength between the bent portion 33 and the reflective portion 32. On the other hand, if the included angle β is controlled to be no greater than 120°, and the included angle between the two extension segments 312 is too large, that is, β > 120°, it may cause the included angle between the two extension segments 312 and the seam segment 311 to be too large. The solid part between the two extension segments 312 and the seam segment 311 is too large. The material of the solid part is relatively hard, which may cause interference when the bending part 33 and the reflective part 32 are bent relative to each other, affecting the convenience of bending the reflective sheet 3.

[0097] Please see Figure 6 In some embodiments, along the extension direction of the seam line 31, the distance between the opposing ends of two adjacent seam segments 311 is d, which satisfies: 1mm < d < 5mm.

[0098] For example, the spacing d can be 1mm-2mm, 2mm-3mm, 3mm-4mm, 4mm-5mm, etc. For instance, the spacing d can be 1.1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, or 4.9mm, etc.

[0099] In this application, the spacing d between the opposing ends of two adjacent seam segments 311 is controlled between 1mm and 5mm. On one hand, controlling d to be no less than 1mm is crucial. If d is less than 1mm, the distance between the two adjacent seam segments 311 may be too short, potentially reducing the solid portion of the reflective sheet 3 and decreasing the connection strength between the reflective portion 32 and the bent portion 33. Furthermore, if d is too small, it may affect the position of the extension segment 312, making it difficult to cut the extension segment 312 onto the reflective sheet 3. On the other hand, controlling d to be no greater than 5mm is also important. If d is greater than 5mm, the solid portion of the reflective sheet 3 between the two adjacent seam segments 311 increases, potentially making it difficult for the bent portion 33 to bend relative to the reflective portion 32, thus hindering the bending operation of the reflective sheet 3. Therefore, this application controls d to be between 1mm and 5mm, which preserves the position for cutting the extension segment 312, ensures the connection strength between the bent portion 33 and the reflective portion 32, and facilitates bending of the bent portion 33 relative to the reflective portion 32.

[0100] Please see Figure 6 In some embodiments, the length of the extension segment 312 is L, satisfying: 0mm < L < 3mm.

[0101] For example, the length L of the epitaxial segment 312 can be 0.1mm-0.5mm, 0.5mm-1mm, 1mm-1.5mm, 1.5mm-2mm, 2mm-2.5mm, 2.5mm-2.9mm, etc. For instance, the length L of the epitaxial segment 312 can be 0.1mm, 0.3mm, 0.5mm, 0.7mm, 1mm, 1.3mm, 1.5mm, 1.7mm, 2mm, 2.3mm, 2.5mm, 2.7mm, or 2.9mm, etc.

[0102] In this application, the length L of the extension segment 312 is set to satisfy: 0mm < L < 3mm. On one hand, this prevents L from being 0mm, meaning that at least a portion of the extension segment 312 is provided at the end of the seam segment 311, making the solid portion of the reflective sheet 3 between the two seam segments 311 easier to bend. On the other hand, it controls L to not exceed 3mm. If the length L of the extension segment 312 is greater than 3mm, the opposing end of another adjacent seam segment 311 might be connected to it. This could lead to the bent portion 33 being cut off relative to the reflective portion 32 during the cutting process, affecting the connection between the bent portion 33 and the reflective portion 32. Therefore, this application controls the length L of the extension segment 312 to be between 0mm and 3mm, which not only makes the solid portion of the reflective sheet 3 between the two seam segments 311 easier to bend but also prevents the bent portion 33 from being cut off relative to the reflective portion 32, maintaining the connection between the bent portion 33 and the reflective portion 32.

[0103] Please see Figure 8In some embodiments, the extension segment 312 is constructed as a curved segment, and the line connecting the two endpoints of the projection of the curved segment onto the reflective sheet 3 forms an angle with the extension direction of the saddle segment 311.

[0104] In setting the shape of the cut-out extension segment 312, the extension segment 312 can be a straight line or a curved segment, that is, the extension segment 312 can be wavy or arc-shaped, etc. After the extension segment 312 is constructed as a curved segment, when the extension segment 312 is constructed into different shapes, if the length of the connecting line is equal, for example, when the extension segment 312 is constructed as a curved segment, the hollow portion of the extension segment 312 is larger, so as to minimize the solid portion between the connection between the bent portion 33 and the reflective portion 32, thereby improving the ease of bending the bent portion 33 relative to the reflective portion 32.

[0105] For example, when the extension segment 312 is constructed as a curved segment, the shape of the curved segment can be a continuous arc-shaped wavy line segment, or the curved segment can be an arc segment, and the arc direction of the arc segment can be towards the bent portion 33 or towards the reflecting portion 32.

[0106] Please see Figure 9 In some embodiments, both ends of the seam-riding section 311 are provided with extension sections 312 along the extension direction of the seam-riding line 31.

[0107] When the extension segment 312 is provided at the end of the seam segment 311 in this application, the extension segment 312 can be provided at both ends of the seam segment 311. That is, the extension segment 312 is provided at the opposite ends of any two adjacent seam segments 311, so that the solid part of the reflective sheet 3 between each two seam segments 311 is partially hollowed out by the extension segment 312, thereby increasing the hollowed-out part of the entire seam line 31, thus reducing the solid part at the connection between the bent part 33 and the extension part, so as to facilitate the bending of the reflective sheet 3.

[0108] Optionally, two extension segments 312 can be provided at each end of a seam-crossing segment 311. That is, four extension segments 312 can be provided on a seam-crossing segment 311.

[0109] Please see Figure 10 In some embodiments, in two adjacent seam segments 311, the extension segments 312 provided on the opposite ends of the two seam segments 311 are arranged opposite each other. When the bent portion 33 bends relative to the reflective portion 32, a crease 3c is formed between the two oppositely arranged extension segments 312.

[0110] Among them, in the two adjacent seam segments 311, the two extension segments 312 of one seam segment 311, the two extension segments 312 of the other seam segment 311, and the two creases 3c make the portion of the reflective sheet 3 located at the interval between the two adjacent seam segments 311 be constructed as a hexagon.

[0111] In this application, when the extended segments 312 on the opposing ends of two adjacent seam lines 31 are arranged opposite each other, the two extended segments 312 on one seam line 311 are respectively arranged opposite to the two extended segments 312 on the other seam line 311. In this way, the length of the solid portion of the reflective sheet 3 of the two opposing extended segments 312 is shorter than the solid portion between the opposing ends of the two adjacent seam lines 311. When the bent portion 33 is bent relative to the reflective portion 32, the solid portion of the reflective sheet 3 between the two opposing extended segments 312 is shorter and easier to bend. Therefore, the two sets of opposing extended segments 312 form two creases 3c, and the two creases 3c and four extensions construct a hexagonal part of the reflective sheet 3 at the interval between the two adjacent seam lines 311. That is, when bending the reflective sheet 3, by bending the solid portion of the reflective sheet 3 between the two opposing extended segments 312, where the solid portion of the reflective sheet 3 is shorter and easier to bend, it is easier to install the reflective sheet 3 on the back plate 1.

[0112] In addition, since the solid portion of the reflective sheet 3 between the opposing ends of the two adjacent seam sections 311 is not bent, but the solid portion between the two sides facing the outer extension section 312 is bent, the solid portion at the seam line 31 can be avoided by directly bending it, thereby improving the bending resistance of the seam line 31.

[0113] The display device disclosed in the embodiments of this application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the display device and its core ideas. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A display device, characterized in that, include: Display panel; A backlight module, wherein the backlight module is disposed on the backlight side of the display panel, the backlight module comprising: Back panel; A backlight source is located on the side of the back panel facing the display panel; A reflective sheet is disposed on the side of the back plate facing the display panel; A diffuser plate is disposed on the side of the reflective sheet opposite to the back plate; The reflective sheet has a seam across it, the seam being configured such that the reflective sheet includes: A reflective portion, which is configured to reflect the light from the backlight source; The bent portion is connected to the outer periphery of the reflective portion to form the edge of the reflective portion, and the bent portion is capable of bending relative to the reflective portion along the seam line to overlap the edge of the back panel. The seam allowance includes: Multiple seam segments are provided at intervals along the extension direction of the corresponding edge of the reflective portion. Among the multiple seam segments, at least two adjacent seam segments have an extension segment at their opposing ends. The extension direction of the extension segment forms an angle with the extension direction of the seam segment in which it is located.

2. The display device according to claim 1, characterized in that, The angle formed by the extension direction of the outer extension segment and the extension direction of the seam segment is α, which satisfies: 30°≤α≤60°.

3. The display device according to claim 1, characterized in that, For multiple slit segments located on the same edge of the reflective portion, the projections of the opposing ends of two adjacent slit segments onto the reflective sheet form a connecting line, and a straight line orthogonal to the midpoint of the connecting line is constructed as a centerline. The two extension segments on the opposing ends of two adjacent slit segments are symmetrically arranged relative to the centerline.

4. The display device according to claim 1, characterized in that, Two extension segments are provided on one end of the same seam segment. One of the two extension segments extends toward the bent portion, and the other extension segment extends toward the reflective portion, so that the extension directions of the two extension segments are also set at an angle.

5. The display device according to claim 4, characterized in that, The included angle β formed by the extending directions of the two extension segments located at one end of the same seam segment satisfies: 60°≤β≤120°.

6. The display device according to claim 4, characterized in that, In two adjacent seam segments, the extension segments on the opposite ends of the two seam segments are arranged opposite each other. When the bent portion bends relative to the reflective portion, a crease is formed between the two oppositely arranged extension segments. In one of the two adjacent seam segments, the two outer segments of one seam segment, the two outer segments of the other seam segment, and the two creases cause the portion of the reflective sheet located at the interval between the two adjacent seam segments to be constructed as a hexagon.

7. The display device according to any one of claims 1-6, characterized in that, Along the extension direction of the seam line, the distance between the opposing ends of two adjacent seam segments is d, which satisfies: 1mm < d < 5mm.

8. The display device according to claim 7, characterized in that, The length of the extension segment is L, which satisfies: 0mm < L < 3mm.

9. The display device according to any one of claims 1-6, characterized in that, The extension segment is constructed as a curved segment, and the line connecting the two endpoints of the projection of the curved segment onto the reflector forms an angle with the extension direction of the saddle segment.

10. The display device according to any one of claims 1-6, characterized in that, Along the extension direction of the seam line, both ends of the seam segment are provided with the extension segment.

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