Electronic device
By designing a relatively fixed protruding direction and avoiding space for pressing edge strips on the projection and main body of the flexible screen, the problem of the width of the pressing edge strip affecting the screen-to-body ratio is solved, and the effect of the flexible screen not falling off the pressing edge strip and increasing the screen-to-body ratio when folded is achieved.
Patent Information
- Application Number
- CN202421698533.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-07-17
AI Technical Summary
In foldable screen devices, the width of the edge-pressing strip is too small, causing the screen to fall out when folded, and the width is too large that affects the screen-to-body ratio, resulting in poor customer experience.
The projection and main body part of the designed flexible screen are kept relatively fixed, and the protruding direction is opposite to the direction of retraction when the main body part is folded. The edge-pressing strip is provided with a space to increase the overlap size between the flexible screen and the edge-pressing strip, and the space needs when the flexible screen is expanded through the partially formed avoidance space.
It reduces the risk of the flexible screen removing the edge strip when it is folded, reduces the distance between the flexible screen and the edge strip, increases the screen-to-body ratio, and improves the reliability of electronic devices.
Smart Images
Figure CN223194734U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of folding screen technology, and more specifically, to an electronic device. Background Art
[0002] Foldable screen devices, such as mobile phones, experience screen movement during folding, necessitating the use of edge strips to protect and conceal the edges of the screen. Edge strips have a minimum width. If they are too small, they can easily break free during folding. If they are too large, they can increase the phone's bezel size, impacting the screen-to-body ratio and resulting in a poor user experience. Summary of the Invention
[0003] The present application provides an electronic device that can keep the edge strips from falling out when the screen is folded, and can also appropriately increase the screen-to-body ratio.
[0004] An electronic device, comprising:
[0005] A flexible screen that can be folded or unfolded, comprising a main body and a convex portion extending from an edge of the main body. The main body is provided with a folding axis that allows the flexible screen to be folded or unfolded. The convex portion and the main body remain relatively fixed and fold or unfold together. The convex portion protrudes in the opposite direction of the main body's retraction when folded.
[0006] The edge pressing strip is pressed on the edge of the main body and the convex part, and the edge pressing strip is provided with an escape space for the convex part when it follows the main body to unfold.
[0007] Optionally, the main body portion includes a first main body portion and a second main body portion located on two opposite sides of the folding axis, and the first main body portion and the second main body portion can be folded or unfolded relative to each other.
[0008] The convex portion includes a first convex portion protruding from an edge of the first main body portion and a second convex portion protruding from an edge of the second main body portion, and the first convex portion and the second convex portion are arranged on two opposite sides of the folding axis.
[0009] Optionally, the first main body portion includes a first edge located at the edge and extending parallel to the folding axis, the first protrusion protrudes from the first edge, and in the extension direction of the folding axis, the size of the first protrusion is smaller than the size of the first edge.
[0010] Optionally, the first protrusion protrudes from a middle area of the first edge.
[0011] Optionally, a dimension of the first convex portion protruding from the first edge is 0.2 to 0.4 mm, and a dimension of the first convex portion in an extension direction of the folding axis is 15 to 25 mm.
[0012] Optionally, the second main body portion includes a second edge located at the edge and extending parallel to the folding axis, the second protrusion protrudes from the second edge, and in the extension direction of the folding axis, the size of the second protrusion is smaller than the size of the second edge, and protrudes from the middle area of the second edge.
[0013] Optionally, the first protrusion and the second protrusion are symmetrically arranged on two opposite sides of the folding axis.
[0014] Optionally, the edge pressing strip includes an inner surface perpendicular to the protruding direction of the protrusion, the inner surface is provided with the avoidance space, and the avoidance space is configured as a semicircular structure with an opening toward the protrusion.
[0015] Optionally, the flexible screen is an OLED display screen, and the main body includes a protective film layer located on the top, and the protective film layer is provided with the convex portion.
[0016] Optionally, the electronic device further includes a middle frame, the edge pressing strip is mounted on the middle frame, and an outer edge of the edge pressing strip does not exceed an outer edge of the middle frame.
[0017] The present application provides an electronic device in which a protrusion protrudes from the edge of a main body, the protrusion and the main body remain relatively fixed, and the protrusion is in the opposite direction of the main body's retraction when folded. This can increase the overlap between the edge of the flexible screen and the edge pressure strip, thereby reducing the risk of the flexible screen slipping out of the edge pressure strip when folded. In addition, the avoidance space formed locally by the edge pressure strip can meet the space required for the flexible screen to be unfolded, thereby reducing the distance between the flexible screen and the edge pressure strip, thereby increasing the screen-to-body ratio of the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a top cross-sectional view of an electronic device of the prior art;
[0019] Figure 2 is a cross-sectional view of a partial structure of an electronic device shown in an exemplary embodiment of the present application;
[0020] Figure 3 It is a simplified diagram of the structure of an electronic device;
[0021] Figure 4 It is a top view of the first main body. DETAILED DESCRIPTION
[0022] Here, the technical solutions in the embodiments (or "implementations") of the present application will be clearly and completely described in conjunction with the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.
[0023] If there are terms related to directional indications or positional relationships in the embodiments of this application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship, movement, etc. between the components in a specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first" and "second" in the embodiments of this application are only used for the purpose of convenience of description and should not be understood as indicating or implying relative importance.
[0024] Please refer to Figure 1 , Figure 1 This is a schematic diagram of a pressure edge strip pressed onto a foldable screen in an electronic device according to related art.
[0025] Taking the structure of the top of an electronic device in the related art as an example, the edge strip 1 is pressed onto the edge of the foldable screen 2. The edge strip 1 is installed on the device middle frame 3 and does not extend beyond the device middle frame 3. The total width of the top frame of the electronic device is the sum of the following four dimensions:
[0026] (1) The overlapping dimension A between the upper portion of the edge strip 1 located on the upper side of the foldable screen 2 and the foldable screen 2;
[0027] (2) The dimension B reserved between the edge of the foldable screen 2 and the edge strip 1;
[0028] (3) The thickness C of the front portion of the edge strip 1 located in front of the foldable screen 2;
[0029] (4) The distance D between the outer edge of the edge pressure strip 1 and the outer edge of the device middle frame 3.
[0030] Among them, the minimum value of dimension A cannot be less than 0.5mm, otherwise the foldable screen 2 will fall out of the edge strip 1 during the extrusion test, affecting reliability. Dimension B cannot be less than 0.7mm, otherwise the foldable screen 2 and the edge strip 1 will collide with each other when bent, causing the foldable screen 2 to fail. Dimension C is affected by the manufacturing process and strength of the edge strip 1, and the general minimum value is designed to be 0.6mm. Dimension D is related to the assembly accuracy of the edge strip 1 and is usually designed to be 0.3mm. In this way, the minimum total width of the top frame of the electronic device is 2.1mm.
[0031] Based on this, the present application provides an electronic device, which can reduce the probability of the flexible screen falling out of the edge strip when folded, and can also appropriately increase the screen-to-body ratio. The structure of the electronic device will be described in detail below.
[0032] Please refer to Figure 2 and Figure 3, Figure 2 It is a cross-sectional view showing a partial structure of an electronic device 100 according to an exemplary embodiment of the present application. Figure 3 1 is a simplified diagram of a partial structure of an electronic device 100. By way of example, the electronic device is a foldable device.
[0033] Electronic device 100 includes a flexible screen 10, a bezel 20, and a midframe 30. Flexible screen 10 is flexible and can be folded or unfolded. Bezel 20 is assembled to midframe 30 and positioned above the edges of flexible screen 10. Bezel 20 can move relative to bezel 20 when flexible screen 10 is folded or unfolded. Bezel 20 can be made of plastic, while midframe 30 can be made of metal.
[0034] The flexible screen 10 includes a main body 11 and a convex portion 12 protruding from the edge of the main body 11. The convex portion 12 is relatively fixed to the main body 11. The main body 11 is provided with a folding axis L. The convex portion 12 is folded or unfolded together with the main body 11. The protruding direction of the convex portion 12 is the opposite direction of the retraction of the pressure strip 20 when the main body 11 is folded ( Figure 2 The edge pressing strip 20 is pressed on the edge of the main body 11 and the convex portion 12, and the edge pressing strip 20 is provided with an escape space 201 for the convex portion 12 to follow the main body 11 when it is unfolded.
[0035] According to the above description, the protrusion 12 protrudes from the edge of the main body 11 and remains relatively fixed with the main body 11. The protruding direction of the protrusion 12 is the opposite direction of the retraction of the main body 11 when folded. In this way, the overlapping dimension A' of the edge of the flexible screen 10 and the edge strip 20 can be increased, and the risk of the flexible screen 10 slipping out of the edge strip 20 when folded is reduced. In addition, the avoidance space 201 partially formed by the edge strip 20 can meet the space required for the flexible screen 10 to be unfolded, which makes it possible to reduce the distance B' between the flexible screen 10 and the edge strip 20, thereby appropriately reducing the total width dimension (A'+B'+C') of the edge strip 20. Accordingly, the dimension (A'+B'+C'+D') of the outer frame of the electronic device 100 is reduced, thereby increasing the screen-to-body ratio of the electronic device 100. Figure 2 The middle dimension C′ is the thickness dimension of the edge pressing strip 20 located on the side of the flexible screen 10 , and the dimension D′ is the dimension between the outer edge of the edge pressing strip 20 and the outer edge of the middle frame 30 .
[0036] In one embodiment, Figure 3As shown, the main body 11 includes a first main body 110 and a second main body 111 located on opposite sides of the folding axis L. The first main body 110 and the second main body 111 can be folded or unfolded relative to each other, and the first main body 110 and the second main body 111 can be symmetrical about the folding axis L. The protrusion 12 includes a first protrusion 121 protruding from the edge of the first main body 110 and a second protrusion 122 protruding from the edge of the second main body 111. The first protrusion 121 protrudes in a direction opposite to the retraction direction S1 when the first main body 110 is folded, and the second protrusion 122 protrudes in a direction opposite to the retraction direction S2 when the second main body 111 is folded. The first protrusion 121 and the second protrusion 122 are located on opposite sides of the folding axis L. With this arrangement, the overlap between the edge strip 20 and the first main body 110 at the first convex portion 121 is increased accordingly, and the overlap between the edge strip 20 and the first main body 110 at the second convex portion 122 is also increased accordingly, further reducing the risk of the edge strip 20 slipping out when the flexible screen 10 is folded. It should be noted that convex portions can be provided on each edge of the first and second main bodies 110, 111 to increase the overlap between the edge strip 20 and the flexible screen 10 at all four edges.
[0037] Please refer to Figure 4 , Figure 4 FIG. 1 is a top view of the first main body 110 .
[0038] In one embodiment, the first main body 110 includes a first edge 1100 located at an edge and extending parallel to the folding axis L. The first protrusion 121 protrudes from the first edge 1100. In the direction of the folding axis L, a dimension T1 of the first protrusion 121 is smaller than a dimension T2 of the first edge 1100. This configuration allows the first protrusion 121 to protrude only from a portion of the first main body 110, thereby minimizing the risk of interference between the first protrusion 121 and other components while ensuring a greater overlap between the edge retaining strip 20 and the first main body 110.
[0039] exist Figure 4 In the embodiment shown, the first protrusion 121 is configured to protrude from the middle area of the first edge 1100, and the size of the middle area relative to the two ends is relatively small. The pressure strip 20 overlaps with the first protrusion 121 in the middle area of the first edge 1100, which is more conducive to the balance of the first main body 110 when folding or unfolding, and avoids the phenomenon that the end of the first main body 110 is lifted up and falls out of the pressure strip 20.
[0040] In an optional embodiment, the first protrusion 121 protrudes from the first edge 1100 by 0.2 to 0.4 mm. In this way, the overlap between the first main body 110 and the edge strip 20 can be increased by 0.2 to 0.4 mm. For example, the protruding size of the first protrusion 121 can be 0.2 mm, 0.25 mm, 0.3 mm, 0.35 mm, or 0.4 mm. The size of the first protrusion 121 in the extension direction of the folding axis L is 15 to 25 mm. For example, it can be 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, or 25 mm.
[0041] In one embodiment, the second main body portion 111 includes a second edge (not shown) located at the edge and extending parallel to the folding axis L. The second protrusion 122 protrudes from the second edge. In the direction of the folding axis L, the second protrusion 122 is smaller than the second edge and protrudes from the middle area of the second edge. This improves the balance of the second main body portion 111 when folding or unfolding, and prevents the end of the second main body portion 111 from tilting and falling out of the pressure strip 20. The protrusion of the second protrusion 122 can be 0.2 to 0.4 mm, and the dimension of the second protrusion 122 in the direction of the folding axis L is 15 to 25 mm.
[0042] like Figure 3 As shown, the first convex portion 121 and the second convex portion 122 are symmetrically arranged on two opposite sides of the folding axis L. In this arrangement, the overlapping dimension between the edge retaining strip 20 and the first main body portion 110 is equal to the overlapping dimension between the edge retaining strip 20 and the second main body portion 111, and the overlap amount with the edge retaining strip 20 can be ensured even when the protruding dimensions of the first convex portion 121 and the second convex portion 122 are small.
[0043] Please refer again Figure 2 In one embodiment, the edge retaining strip 20 includes an inner surface 202 perpendicular to the protruding direction of the protrusion 12. The inner surface 202 is provided with the escape space 201. The escape space 201 is configured as a semicircular structure with its opening facing the protrusion 12. The semicircular structure of the escape space 201 facilitates processing. Furthermore, the relatively large escape space 201 allows for the folding or unfolding process to prevent the outer edge of the main body 11 from colliding or contacting the edge retaining strip 20 even if it bends downward, thereby protecting the main body 11 from damage.
[0044] In one embodiment, the flexible screen 10 is an OLED display screen, and the main body 11 includes a substrate, a cathode provided on the substrate, a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, an anode, and a protective film layer. Among them, the protective film layer is provided on the top layer of the main body 11, and the protective film layer is provided with the protrusion 12. In this arrangement, the protrusion 12 can be provided only on the protective film layer, which is simpler and more convenient. The protective film layer can be a PET (polyethylene terephthalate) film layer, but is not limited thereto.
[0045] In one embodiment, the edge strip 20 is mounted on the middle frame 30, and the outer edge of the edge strip 20 does not extend beyond the outer edge of the middle frame 30. With this arrangement, the middle frame 30 is disposed at the outermost side of the electronic device 100, which can protect the edge strip 20 and the flexible screen 10 and prevent damage to the edge strip 20 and the flexible screen 10 when the electronic device 100 falls.
[0046] In the electronic device 100 provided herein, the protrusion 12 protrudes by approximately 0.2 to 0.4 mm, increasing the overlap between the flexible screen 10 and the edge strip 20 by 0.2 to 0.4 mm. Furthermore, by providing a clearance space 201 on the edge strip 20, dimension B' can be reduced by 0.2 to 0.4 mm. This reduces the overall device frame by 0.2 to 0.4 mm, increasing the screen-to-body ratio while maintaining reliability.
[0047] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.
Claims
1. An electronic device, characterized in that: include: A flexible screen that can be folded or unfolded, comprising a main body and a convex portion extending from an edge of the main body. The main body is provided with a folding axis that allows the flexible screen to be folded or unfolded. The convex portion and the main body remain relatively fixed and fold or unfold together. The convex portion protrudes in the opposite direction of the main body's retraction when folded. The edge pressing strip is pressed on the edge of the main body and the convex part, and the edge pressing strip is provided with an escape space for the convex part when it follows the main body to unfold.
2. The electronic device according to claim 1, wherein The main body portion includes a first main body portion and a second main body portion located on two opposite sides of the folding axis, and the first main body portion and the second main body portion can be folded or unfolded relative to each other. The convex portion includes a first convex portion protruding from an edge of the first main body portion and a second convex portion protruding from an edge of the second main body portion, and the first convex portion and the second convex portion are arranged on two opposite sides of the folding axis.
3. The electronic device according to claim 2, wherein: The first main body portion includes a first edge located at an edge and extending parallel to the folding axis, the first protrusion protrudes from the first edge, and in the extending direction of the folding axis, a size of the first protrusion is smaller than a size of the first edge.
4. The electronic device according to claim 3, wherein: The first protrusion protrudes from a middle area of the first edge.
5. The electronic device according to claim 4, characterized in that The first protrusion protrudes from the first edge by 0.2 to 0.4 mm, and the first protrusion has a size of 15 to 25 mm in the extending direction of the folding axis.
6. The electronic device according to claim 2, wherein: The second main body portion includes a second edge located at the edge and extending parallel to the folding axis, the second protrusion protrudes from the second edge, and in the extension direction of the folding axis, the size of the second protrusion is smaller than the size of the second edge and protrudes from the middle area of the second edge.
7. The electronic device according to any one of claims 2 to 6, characterized in that: The first convex portion and the second convex portion are symmetrically arranged on two opposite sides of the folding axis.
8. The electronic device according to any one of claims 1 to 6, characterized in that: The edge pressing strip includes an inner surface perpendicular to the protruding direction of the protrusion, the inner surface is provided with the avoidance space, and the avoidance space is configured to be a semicircular structure with an opening facing the protrusion.
9. The electronic device according to any one of claims 1 to 6, characterized in that: The flexible screen is an OLED display screen, and the main body includes a protective film layer located on the top, and the protective film layer is provided with the convex portion.
10. The electronic device according to any one of claims 1 to 6, characterized in that: The electronic device further includes a middle frame, the edge pressing strip is mounted on the middle frame, and an outer edge of the edge pressing strip does not exceed an outer edge of the middle frame.