Display devices

Abstract

This application provides a display device. The display device includes a display panel, a cover plate, and a middle frame. The display panel is located within a housing formed by the cover plate and the middle frame. The display panel includes a display portion and multiple frame portions surrounding the display portion. The first side surface of the display portion is bonded to the entire second side surface of the cover plate; and the frame portion is bonded to the middle frame. The technical solution of this application can achieve a visually borderless and full-screen effect.

Description

Technical Field

[0001] The present application relates to display technology, and in particular to a display device. Background Art

[0002] The current market trend is to continuously narrow the borders of terminal devices such as mobile phones and tablets. However, due to factors such as GOA (Gate Driver On Array), fan-out area, cutting edge, and packaging, further narrowing the border is becoming increasingly challenging. Sometimes, even single-sided GOA is used to narrow the border, sacrificing display reliability. Summary of the Invention

[0003] The present invention provides a display device to solve the problems existing in the related art. The technical solution is as follows:

[0004] An embodiment of the present application provides a display device, including a display panel, a cover plate, and a middle frame;

[0005] The display panel is located in the accommodation space formed by the cover plate and the middle frame;

[0006] The display panel includes a display portion and a plurality of frame portions surrounding the display portion;

[0007] The first side surface of the display portion is in contact with the entire area of ​​the second side surface of the cover plate;

[0008] The border part fits with the middle frame.

[0009] The advantages or beneficial effects of the above technical solution include at least:

[0010] The first side surface of the display part of the display panel is fitted with the entire area of ​​the second side surface of the cover plate, and the frame part of the display panel is fitted with the middle frame, so that the display part and the cover plate are fully fitted, and the frame part surrounding the display part extends beyond the cover plate, and the frame part extending beyond the edge of the cover plate is hidden within the shielding range of the middle frame, so that users cannot see the signal routing and other structures of the frame part through the cover plate, and can only see the signal routing and other structures of the display part, which is conducive to achieving a visual borderless and full-screen effect without sacrificing display reliability.

[0011] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present application will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar components or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0013] Figure 1 It is a front view schematic diagram of a mobile phone in the related art;

[0014] Figure 2 A partial cross-sectional schematic diagram of a mobile phone in the related art;

[0015] Figure 3 A front view schematic diagram of a display panel provided in an embodiment of the present application;

[0016] Figure 4 A partial cross-sectional schematic diagram of a display device provided in an embodiment of the present application;

[0017] Figure 5 Another partial cross-sectional schematic diagram of a display device provided in an embodiment of the present application;

[0018] Figure 6 A schematic partial cross-sectional view of another embodiment of the display device provided in the present application;

[0019] Figure 7 A schematic partial cross-sectional view of another embodiment of the display device provided in the present application;

[0020] Figure 8 A schematic flow chart of a method for manufacturing a display panel provided in an embodiment of the present application. DETAILED DESCRIPTION

[0021] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present application. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0022] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with their meanings in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0023] The inventors of this application have discovered in their research that mobile phones, tablet computers and other terminal devices in related technologies always have an undisplayable area on the front due to factors such as GOA, fan-out area, cutting edge, and packaging. Figure 1 shows a front view of a mobile phone in the related art, Figure 1 The U Border is the upper border, the D Border is the lower border, the border where the GOA on the left is the left border, and the border where the GOA on the right is the right border. Figure 1 The upper border, lower border, left border and right border shown are all exposed to the user's visual range when the user is using the mobile phone.

[0024] Figure 2 Shown Figure 1 The partial cross-sectional diagram of the mobile phone shown in FIG. Figure 1 The schematic diagram of the positional relationship between the frame and the AA (ActiveArea, effective display area) area 201, the frame area 202, the CG (Cover Glass, glass cover) 203, and the middle frame 204 is shown. Figure 2 It can be seen that in related art mobile phones, the AA area 201 and the border area 202 cannot be attached to the CG 203. The border area 202 is also within the coverage of the CG 203. Therefore, the signal wiring and other structures of the border area 202 can be seen through the CG 203 from the front of the mobile phone. To prevent the border area 202 from being visible from the front, it is necessary to apply light-shielding ink to the area around the CG 203 to block the border area. Therefore, a clear black border is formed around the CG.

[0025] The following describes in detail the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems with specific embodiments.

[0026] The present invention provides a display device comprising a display panel, a cover plate, and a midframe. The display panel is positioned within a housing formed by the cover plate and the midframe. The display panel comprises a display portion and a plurality of frame portions surrounding the display portion. A first side surface of the display portion is bonded to the entire second side surface of the cover plate, and the frame portions are bonded to the midframe.

[0027] Figure 3 A front view of a display panel provided in an embodiment of the present application is shown. Figure 3 For example, the display portion 301 may be the portion where the AA (Active Area) area is located, that is, the luminous portion, and the frame portion may be the portion outside the AA area that cannot be displayed, that is, the non-luminous portion. Figure 3In the example of FIG, the plurality of frame portions may include a first frame portion 302, a second frame portion 303, a third frame portion 304 and a fourth frame portion 305 respectively surrounding the four edges of the display portion 301, wherein the first frame portion 302 is Figure 3 In the figure, it is represented as U Border, and the second border portion 303 is Figure 3 The border portion where the GOA is located on the left side of the middle, the third border portion 304 is Figure 3 The frame portion where the GOA is located on the right side of the middle, the fourth frame portion 305 is Figure 3 Indicated as D Border.

[0028] In the above-mentioned display device provided by the embodiment of the present application, the first side surface of the display part in the display panel is fitted with the entire area of ​​the second side surface of the cover plate, and the frame part in the display panel is fitted with the middle frame, so that the display part and the cover plate are fully fitted, and then the frame part surrounding the display part extends beyond the cover plate, and the frame part extending beyond the edge of the cover plate is hidden within the shielding range of the middle frame, so that the user cannot see the signal routing and other structures of the frame part through the cover plate, and can only see the signal routing and other structures of the display part, which is conducive to achieving a visual borderless and full-screen effect without sacrificing the reliability of the display.

[0029] In an optional embodiment, the edge area of ​​the cover plate may have a first bending portion, such as a four-curved cover plate, and the edge area of ​​the display part may have a second bending portion. The bending angle of the first bending portion may be the same as the bending angle of the second bending portion, so that the display part and the cover plate can fit more fully at the bending portion.

[0030] In an optional embodiment, as Figure 3 As shown, adjacent frame portions may have a break zone between them, that is, adjacent frame portions may be separated from each other. During the process of attaching the display panel having the second bending portion to the middle frame, the frame portion may bend. When the break zone is provided between adjacent frame portions, the frame portion can be prevented from being stretched during the bending process, making bending easier.

[0031] In an optional embodiment, the first side surface of the display portion is used to cover the entire area of ​​the second side surface when it is in contact with the second side surface of the cover plate, which can be achieved by the following method 1 or method 2:

[0032] Method 1: The edge of the display part is flush with the edge of the cover. In this case, refer to Figure 4For example, the first side surface of the display portion 301 can just fit over the entire area of ​​the second side surface of the cover plate 302, and the edge of the display portion 301 can be flush with the edge of the cover plate 306, so that the frame portion (such as 302 / 303 / 304 in the figure, representing any one of the first to third frame portions) exceeds the range of the cover plate 306. The flushness described in the embodiment of the present application can be flushness within an allowable error range. For example, when the edge of the display portion 301 and the edge of the cover plate 306 are in the same plane, the edge of the display portion 301 and the edge of the cover plate 306 can be considered to be flush. When the edge of the display portion 301 and the edge of the cover plate 306 are misaligned within the allowable error range, the edge of the display portion 301 and the edge of the cover plate 306 can also be considered to be flush.

[0033] In one example, the dimensions of the first side surface of the display portion can be equal to the dimensions of the second side surface of the cover plate, so that when the display portion and the cover plate are attached, the edge of the display portion is flush with the edge of the cover plate. In another example, the dimensions of the first side surface of the display portion can be greater or less than the dimensions of the second side surface of the cover plate within an allowable error range, so that when the display portion and the cover plate are attached, the edge of the display portion and the edge of the cover plate are flush with each other within an allowable error range.

[0034] Method 2: The edge of the display part exceeds the edge of the cover. In this case, refer to Figure 5 Taking the example of , when the first side surface of the display portion 301 is bonded to the second side surface of the cover plate 306, the first side surface can be bonded to the entire area of ​​the second side surface and extend beyond the cover plate 306, that is, the second side surface of the cover plate 306 only bonds to a portion of the display portion 301. Method 2 can ensure that the border portion completely extends beyond the cover plate 306, which is more conducive to achieving a borderless display and can greatly reduce the requirements for the bonding accuracy of the display panel and the cover plate. In one example, the size of the first side surface of the display portion can be larger than the size of the second side surface of the cover plate, so that when the display portion and the cover plate are bonded, the edge of the display portion extends beyond the edge of the cover plate.

[0035] In an optional embodiment, the difference between the size of the first side surface of the display part and the size of the second side surface of the cover plate can be less than 400 microns. When the first side surface of the display part and the second side surface of the cover plate are bonded together, at one end of the bonding surface, the size of the portion of the display part that extends beyond the cover plate is less than 200 microns. While ensuring that the frame portion completely extends beyond the cover plate, the display part can be prevented from occupying too much space.

[0036] In an optional embodiment, at least one of the multiple frame parts is provided with a fan-out area, and the fan-out area is in contact with the fourth side surface of the middle frame. Figure 3 In the example, the fan-out area can be set in the fourth border part, refer to Figure 6The structure of the frame part and its schematic diagram with the cover plate and the terminal middle frame are shown. The fan-out area 3051 can be fitted with the middle frame 307, thereby hiding the fan-out area 3051 within the shielding range of the middle frame 307, so that the user cannot see the signal routing and other structures of the fan-out area 3051 through the cover plate 306.

[0037] In an alternative embodiment, referring to Figure 6 For example, the frame portion provided with the fan-out area 3051 can be a bent structure, and the fan-out area 3051 is provided in an edge area of ​​the bent structure. The design of the bent structure can reduce the impact on the distribution state of other devices, and various devices can be reasonably arranged in the original accommodation space. On the basis that the fan-out area can extend beyond the edge of the cover plate, other areas of the frame portion must extend beyond the cover plate.

[0038] In an alternative embodiment, referring to Figure 6 For example, another edge region of the third bend 3052 is provided with an FOP (Flexible Printed Circuit on Panel) region, which aligns with the planar region of the third side surface of the display portion, with the third side surface facing the first side surface. This design can substantially conserve internal storage space within the display device, facilitating placement of other components required for the display device. Bonding pads can be provided at the edge of the FOP region, which can be used to bond an FPC (Flexible Printed Circuit).

[0039] In an alternative embodiment, referring to Figure 7 For example, the display device provided in the embodiment of the present application may further include a supporting structure 3052, which may be located in the gap of the bending structure or in the gap between the bending structure and the display portion 30, and may be used to support the bending structure. The supporting effect may increase the bending radius of the bending structure to prevent the signal line from being disconnected due to a too small bending radius.

[0040] The display portion in the embodiment of the present application can be provided with an organic light-emitting device, such as an OLED (Organic Light-Emitting Diode), or can be provided with any one of a Mini LED (Mini Light-Emitting Diode) and a Micro LED (Micro Light-Emitting Diode). The cover plate in the embodiment of the present application can be a glass cover plate.

[0041] Based on the same technical concept, the present application also provides a method for preparing a display panel. Figure 8As shown, the method may include the following steps S801-S802:

[0042] S801 , forming a display portion according to the size of the second side surface of the cover plate to be matched, so that the size of the first side surface of the display portion matches the size of the second side surface.

[0043] In one embodiment, in the process of forming the display part, the bending angle of the bent portion of the cover plate to be matched can also be considered, so that the display part has a bent portion, and the bending angle of the bent portion of the display part is the same as the bending angle of the bent portion of the cover plate, which is conducive to making the prepared display panel and the cover plate fit more fully.

[0044] S802, forming a plurality of frame portions in a peripheral area of ​​the display portion.

[0045] When the display panel prepared by the above preparation method is attached to the cover plate, the frame portion can extend beyond the range of the cover plate, and the frame portion cannot be seen through the cover plate, which is conducive to visually eliminating the frame.

[0046] The size of the first side surface matches the size of the second side surface, which may include any of the following situations: the size of the first side surface is equal to the size of the second side surface, or the size of the first side surface is larger than the size of the second side surface. When the size of the first side surface is equal to the size of the second side surface, when the first side surface of the display part is fitted with the second side surface of the cover plate, the first side surface can just fit with the entire area of ​​the second side surface, and the edge of the display part can be flush with the edge of the cover plate, so that the frame part exceeds the range of the cover plate. When the size of the first side surface is larger than the size of the second side surface, when the first side surface of the display part is fitted with the second side surface of the cover plate, the first side surface can fit with the entire area of ​​the second side surface and exceed the cover plate, that is, the second side surface of the cover plate only fits with a partial area of ​​the display part, which can ensure that the frame part completely exceeds the cover plate, which is more conducive to achieving a borderless state.

[0047] In an optional embodiment, the method for manufacturing a display panel may further include forming a fracture zone between adjacent frame portions. In one example, the fracture zone between adjacent frame portions may be formed by laser cutting. When the display panel is applied to a terminal device, the display panel needs to be bonded to the terminal device's midframe. During the bonding process, the frame portion may bend. The presence of a fracture zone between adjacent frame portions can prevent the frame portion from being stretched during the bending process, thereby reducing the impact on the frame portion's circuitry.

[0048] In an optional embodiment, in step S802, forming multiple frame portions in the peripheral area of ​​the display portion may include forming a fan-out region on one of the multiple frame portions, providing a pad connected to the fan-out region, and bending the pad to form a bent structure. The bent pad design can reduce the impact on the distribution of other components and reasonably arrange the components within the existing space.

[0049] In an optional embodiment, during the above-mentioned bending process, part of the side surface of the pad can be fitted with the display part. When the prepared display panel is applied to the terminal device, the space inside the terminal device can be fully saved, which is convenient for placing other devices required by the terminal device.

[0050] Based on the same technical concept, an embodiment of the present application also provides a method for preparing a display device, including: fitting the first side surface of the display part in the display panel with the entire area of ​​the second side surface of the cover plate, or fitting the first side surface of the display part in the display panel with the entire area of ​​the cover plate and a partial area of ​​the middle frame; fitting the border part in the display panel with at least a partial area of ​​the middle frame.

[0051] Reference Figure 4 For example, the first side surface of the display portion 301 can be aligned with the entire area of ​​the second side surface of the cover plate, so that the edge of the display portion 301 can be flush with the edge of the cover plate, and the frame portion can be extended beyond the range of the cover plate. By affixing the frame portion to the middle frame, the frame portion can be hidden within the shielding range of the middle frame. Flush can include being located on the same horizontal plane and being misaligned within the allowable error range. For details, please refer to the relevant content above and will not be repeated here.

[0052] Reference Figure 5 For example, a portion of the first side of the display portion 301 can be fitted with the entire area of ​​the second side of the cover, another portion can be fitted with a partial area of ​​the middle frame, and the border portion can be fitted with the remaining area of ​​the middle frame, thereby ensuring that the border portion completely extends beyond the cover and is hidden within the shielding range of the middle frame, which is more conducive to achieving a borderless display.

[0053] In the description of this specification, the reference terms "one embodiment," "some embodiments," "example," "specific example," or "some examples" mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials, or characteristics described may be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification, as well as features of different embodiments or examples, unless they are mutually inconsistent.

[0054] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0055] In the description of this specification, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to this application.

[0056] It should be understood that the wording "comprising" used in this specification refers to the features, integers, steps, operations, elements and / or components mentioned, but does not exclude the existence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. The wording "and / or" used herein includes all or any unit and all combinations of one or more associated listed items.

[0057] It should be understood that the steps, measures, and schemes in the various operations, methods, and processes discussed in this application may be interchanged, modified, combined, or deleted. Furthermore, other steps, measures, and schemes in the various operations, methods, and processes discussed in this application may also be interchanged, modified, rearranged, decomposed, combined, or deleted. Furthermore, steps, measures, and schemes in the prior art that are similar to those disclosed in this application may also be interchanged, modified, rearranged, decomposed, combined, or deleted.

[0058] In addition, although the steps in the flowcharts of the accompanying drawings are shown in sequence as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some of the steps in the flowcharts of the accompanying drawings may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily executed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be executed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

[0059] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily conceive of various modifications or substitutions within the technical scope disclosed in this application, and such modifications or substitutions should be included within the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A display device, characterized in that: Including display panel, cover and middle frame; The display panel is located in a receiving space formed by the cover plate and the middle frame; The display panel includes a display portion and a plurality of frame portions surrounding the display portion; The first side surface of the display portion is in contact with the entire area of ​​the second side surface of the cover plate; The frame portion is fitted with the middle frame; At least one of the plurality of frame portions is provided with a fan-out area, and the fan-out area is in contact with the fourth side surface of the middle frame; The frame portion where the fan-out area is provided is a bent structure, and the fan-out area is provided in an edge area of ​​the bent structure.

2. The display device according to claim 1, wherein The edge area of ​​the cover plate has a first bending portion, and the edge area of ​​the display portion has a second bending portion. The bending angles of the first bending portion and the second bending portion are the same.

3. The display device according to claim 2, wherein There is a break zone between adjacent frame parts.

4. The display device according to any one of claims 1 to 3, characterized in that: The edge of the display portion is flush with the edge of the cover plate.

5. The display device according to any one of claims 1 to 3, characterized in that: The edge of the display portion exceeds the edge of the cover plate.

6. The display device according to claim 1, wherein A flexible circuit board (FOP) area on the panel is provided in another edge area of ​​the bending structure. The FOP area is in contact with a planar area on the third side surface of the display portion. The third side surface is opposite to the first side surface.

7. The display device according to claim 1, wherein It also includes a supporting structure, which is located in the gap within the bending structure or in the gap between the bending structure and the display part, and is used to support the bending structure.

8. The display device according to any one of claims 1 to 3, characterized in that: The display portion is provided with an organic light emitting device.

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