Curved screen, curved screen manufacturing method and terminal

Abstract

The present disclosure relates to a curved screen, a method for manufacturing a curved screen, and a terminal. The curved screen in the present disclosure includes: a glass cover plate, the glass cover plate includes a flat area and a curved area, the curved area is located at the edge of the glass cover plate; a plurality of electrodes, the electrodes are arranged on the back side of the glass cover plate, including a first electrode, the first electrode body is arranged in the flat area, and the first electrode at least partially extends to the curved area. The present disclosure can improve the touch performance of the curved area at the edge of the curved screen.

Description

Technical Field

[0001] The present disclosure relates to a display device, and more particularly to a curved screen, a curved screen manufacturing method, and a terminal. Background Art

[0002] In related technologies, smartphones generally use touch screens as display and interaction devices. According to the type of sensor, touch screens are roughly divided into four types: infrared, resistive, surface acoustic wave and capacitive touch screens. Capacitive touch screens work by using the human body's current induction. A layer of transparent special metal conductive material is attached to the glass surface. When a conductive object touches it, the capacitance of the contact point will change, so that the touch position can be detected. Capacitive touch screens have gradually become the most mainstream type of touch screens due to their high accuracy and clarity, not easy to be contaminated or worn, good sensitivity, and long life.

[0003] Whether the touch screen (touch panel) is made of OGS (One Glass solution single-chip touch screen) technology, GFF (Glass+Film+Film cover glass + double-layer film) technology, GF (Cover glass+Senser Film, cover glass + single-layer film) technology, GG (Cover glass+Glass sensor, cover glass + ITO glass) technology, In-cell (display liquid crystal pixels embedded touch sensor) technology or On-cell (display color filter substrate and polarizer embedded touch sensor) technology, it is necessary to set one or two layers of ITO (Indium Tin Oxides, indium tin oxide) transparent conductive film in the touch screen. When the user touches the capacitive screen, a coupling capacitor is formed between the user and the touch screen surface based on the human body electric field, and the touch screen controller calculates the touch position according to the different capacitance values.

[0004] Currently, more and more high-end mobile phones are beginning to use 3D curved display touch screens. 3D curved display screens refer to those screens that are no longer flat, but have a curved edge (top, bottom, left, right) on the screen. Generally speaking, the area with a larger curvature on the edge of existing 3D curved screens is generally less than 3 mm.

[0005] However, due to the physical characteristics of the curved screen, its edge click sensitivity and accuracy performance are much lower than those of ordinary flat display touch screens, and the edge touch performance of the curved screen has attracted more and more attention. Summary of the invention

[0006] In order to overcome the problems existing in the related art, the present disclosure provides a curved screen, a curved screen manufacturing method and a terminal, by improving the design of the curved screen electrode channel, so that the electrode channel in the flat area is extended to the curved area, thereby improving the touch performance of the curved area at the edge of the curved screen.

[0007] According to a first aspect of an embodiment of the present disclosure, a curved screen is provided, comprising: a glass cover plate, the glass cover plate comprising a flat area and a curved area, the curved area being located at an edge of the glass cover plate; a plurality of electrodes, the electrodes being arranged on the back side of the glass cover plate, including a first electrode, the first electrode main body being arranged in the flat area, and the first electrode at least partially extending to the curved area.

[0008] In one embodiment, the edge of the first electrode close to the curved area extends entirely to the intersection of the planar area and the curved area; or, the edge of the first electrode close to the curved area extends entirely beyond the intersection to the back side of the curved area.

[0009] In one embodiment, the plurality of electrodes further include a second electrode disposed in the curved surface area, and the first electrode and the second electrode are distributed alternately.

[0010] In one embodiment, the first electrode has a plurality of first protrusions, the second electrode has a plurality of first grooves, and the first protrusions extend from the electrode body toward the curved surface area and extend into the first grooves.

[0011] In another embodiment, the second electrode has a plurality of second flanges, the main body of the first electrode has a plurality of second grooves, and the second grooves and the first flanges are alternately distributed in sequence; the second flanges extend into the second grooves.

[0012] According to a second aspect of an embodiment of the present disclosure, a method for manufacturing a curved screen is provided, comprising: providing a glass cover plate, defining a plane area and a curved area on the glass cover plate, so that the curved area is located at the edge of the glass cover plate; mounting a plurality of electrodes on the back side of the glass cover plate, including a first electrode, mounting the first electrode body on the plane area, and extending the first electrode at least partially to the curved area.

[0013] In one embodiment, mounting the first electrode body on the planar area includes extending the edge of the first electrode close to the curved area as a whole to the intersection of the planar area and the curved area; or extending the edge of the first electrode close to the curved area as a whole beyond the intersection to the back side of the curved area.

[0014] In one embodiment, the plurality of electrodes further include a second electrode. The plurality of electrodes are mounted on the back side of the glass cover plate, including: mounting the second electrode on the curved surface area; and staggering the first electrode and the second electrode.

[0015] In one embodiment, the first electrode is provided with a plurality of first flanges extending from the main body toward the curved surface, the second electrode is provided with a plurality of first grooves corresponding to the first flanges, and a plurality of electrodes are mounted on the back side of the glass cover plate, further comprising: the first flange is provided in the first groove.

[0016] In another embodiment, the second electrode is provided with a plurality of second flanges, the first electrode is provided with a plurality of second grooves corresponding to the second flanges, and a plurality of electrodes are mounted on the back side of the glass cover plate, further comprising: the second flanges are provided in the second grooves.

[0017] According to a third aspect of the embodiments of the present disclosure, a terminal is provided, comprising the curved screen as described in the first aspect of the embodiments of the present disclosure.

[0018] The technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: 1) by improving the design of the electrode channel of the curved screen, the electrode channel of the planar area is extended to the curved area, so that the curved area at the edge of the curved screen has higher sensitivity when recognizing touch operations; 2) by recognizing the reporting point information of multiple electrode areas to perform weekly mark calculations, the problem of the curved screen terminal's recognition of user operations being offset toward the outermost edge when the user clicks the edge area of ​​the curved screen is optimized, thereby improving the accuracy of the curved screen in recognizing touch operations.

[0019] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0021] Figure 1 It is a schematic structural diagram of a curved screen terminal according to an exemplary embodiment of the present disclosure.

[0022] Figure 2 It is a structural schematic diagram of a curved screen cross section according to related technology.

[0023] Figure 3 It is a schematic diagram of the planar structure of a conductive layer of a curved screen according to related technology.

[0024] Figure 4 It is a schematic diagram of the partial structure of a curved screen cross section according to the related art.

[0025] Figure 5 It is a schematic diagram of the electrode structure of a conductive layer of a curved screen according to related technology.

[0026] Figure 6It is a schematic diagram showing an interactive operation using a curved screen according to the related art.

[0027] Figure 7 The figure is a schematic diagram of an electrode structure of a conductive layer of a curved screen according to an exemplary embodiment of the present disclosure.

[0028] Figure 8 The diagram is a schematic diagram showing an interactive operation performed using a curved screen according to an exemplary embodiment of the present disclosure.

[0029] Fig. 9 It is a schematic diagram of an electrode structure of a conductive layer of a curved screen according to another exemplary embodiment of the present disclosure.

[0030] Fig.10 is a schematic diagram showing an interactive operation performed using a curved screen according to another exemplary embodiment of the present disclosure.

[0031] Fig.11 It is a schematic diagram of an electrode structure of a conductive layer of a curved screen according to another exemplary embodiment of the present disclosure.

[0032] Fig.12 is a schematic diagram showing an interactive operation performed using a curved screen according to another exemplary embodiment of the present disclosure.

[0033] Fig.13 The figure is a flow chart of a method for manufacturing a curved screen according to an exemplary embodiment of the present disclosure.

[0034] Fig.14 It is a schematic diagram of a device of a curved screen terminal according to an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0035] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0036] Figure 1 is a schematic diagram of a structure of a curved screen terminal according to an exemplary embodiment of the present disclosure. Figure 1 As shown, the main body of the curved screen terminal includes at least one curved display screen.

[0037] Generally speaking, curved display screens refer to those display screens that have a portion of the edge (top, bottom, left, right) of the screen that is curved. In the related art, the area with a larger curvature of the edge of the curved screen is generally within 3mm. The present disclosure takes a curved screen with a curved edge on the right side as an example to describe the structure of a curved screen terminal, 101 is the intersection line of the plane area and the curved area of ​​the curved screen, and 102 is the edge line of the curved screen. It is worth noting that the curvature range of the right edge of the curved screen, that is, the distance between 101 and 102 is about 3mm, and the error range does not exceed 0.0010mm.

[0038] Figure 2 1 is a schematic diagram showing a cross-section of a curved screen according to the related art. Figure 2 As shown, the curved screen is a curved screen with a touch function, including a glass cover plate 201 with curved left and right ends, and at least one conductive layer attached to the back of the glass cover plate. Since the conductive layer is attached to the back of the curved screen, the left and right ends of the conductive layer are also curved relative to the glass cover plate, and have the same curvature as the glass cover plate. Figure 2 As shown, it can be further known that the conductive layer has multiple electrodes 203 perpendicular to the cross section of the curved screen and channel gaps 202 between the multiple electrodes, and each electrode has the same width and is distributed at equal intervals on the back side of the glass cover.

[0039] Figure 3 FIG. 1 is a schematic diagram of a planar structure of a conductive layer of a curved screen according to the related art. Figure 3 As shown, the curved screen includes two conductive layers, the second conductive layer carries the sensing electrode 301, and the first conductive layer carries the driving electrode 302. In this embodiment, the sensing electrode is a horizontal long rectangle, and the driving electrode is a vertical long rectangle. Each long rectangle serves as an electrode channel, which can send the capacitance value sensed by itself to the CPU of the terminal. In actual applications, the positions of the driving electrode and the sensing electrode can be interchanged. In the single-layer film technology, the driving electrode and the sensing electrode can also be loaded into a layer of film and arranged in a staggered manner. Generally speaking, the electrode spacing is generally between 4.00mm and 5.00mm. In the disclosed embodiment, the electrode spacing is fixed to about 4.5mm, such as Figure 3 The distance between 303 and 304. Therefore, the width of the long rectangle is slightly smaller than 4.5 mm, and the length of the long rectangle is adapted to the screen size of the curved screen.

[0040] Figure 4 FIG. 1 is a schematic diagram of a partial structure of a curved screen cross section according to the related art. Figure 4 As shown, the sensing electrode or the driving electrode is attached to the back side of the glass cover 401, and the driving electrode channel is perpendicular to Figure 4 Cross section of the curved screen. Figure 4The figure shows the arrangement of multiple electrode channels in the related art. Figure 4 402 is electrode channel 0, 403 is driving electrode channel 1, and 404 is driving electrode channel 2, wherein driving electrode channel 0 is located at the edge of the curved area and the flat area of ​​the curved screen. In the related art, since the curved part of the curved screen is about 3 mm, that is, the width between 407 and 408 is about 3 mm, and the channel width is 4-6 mm, that is, the width between 405 and 406, and between 406 and 408 is 4-6 mm, the electrode spacing of a single electrode channel is greater than the curved part of the curved screen, and the side of the electrode channel away from the edge of the screen will exceed the curved part of the curved screen and extend to the flat part of the curved screen.

[0041] Figure 5 FIG. 1 is a schematic diagram of an electrode structure of a conductive layer of a curved screen according to related art. Figure 5 As shown, the driving electrodes are long rectangular strips with uniform width and are evenly spaced in the conductive layer. The electrode layer composed of electrode channels covers the entire active area (AA) of the screen, so that all areas of the curved screen can effectively receive touch operation information.

[0042] Figure 6 FIG. 1 is a schematic diagram showing a method of implementing interactive operations using a curved screen according to the related art. Figure 6As shown, when the user clicks on the curved edge of the curved screen, the user's finger clicks within the 3mm range of the edge of the curved touch screen where the curvature is larger, that is, the finger clicks on the position of the curved "edge", and at this time, the driving electrode channel 0 will sense a capacitance value different from that when the user does not perform an interactive operation. However, since the width of the driving electrode channel 0 is slightly larger than the curved area of ​​the curved screen, the driving electrode channel 0 will extend out of the curved area. This makes the distance between the driving electrode channel 1 adjacent to the driving electrode channel 0 and the finger far away when the user clicks on the curved edge of the curved screen. When the user touches the edge of the screen with his finger, the minimum distance between it and the driving electrode channel 1 is greater than 1mm, so the signal of the user's touch operation sensed by the driving electrode channel 1 is too small and is completely submerged in the noise. When the CPU of the curved screen terminal recognizes the user's touch signal of the curved screen, it will not only judge the capacitance value change of one electrode channel, but will combine the capacitance value changes of multiple electrode channels to judge the user's touch operation on the curved screen terminal. Since there is no effective signal in the driving electrode channel 1 to participate in the reporting point calculation at this time, the curved screen terminal will not accurately identify the position of the reporting point coordinates when identifying such user operations. For example, in a full high definition (FHD) display screen with a resolution of 1080*2340, the reporting point coordinates of such user operations recognized by the terminal are likely to be biased towards 1 or 1080 on the horizontal X-axis, and 1 or 2340 on the vertical Y-axis, that is, the calculation of the reporting point coordinates is likely to be biased towards the edge of the display screen. Table 1 is a list of capacitance values ​​detected by curved screen terminals when identifying user operations in related technologies. Combined with Figure 1-6 As shown in the contents, in the related art, the multiple driving electrodes and the multiple sensing electrodes located under the curved screen glass cover are distributed in parallel and equidistantly, while the driving electrodes and the sensing electrodes are distributed perpendicular to each other, and multiple square-shaped capacitance value sensing areas are formed in their overlapping and intersecting parts. For example, in Table 1, the capacitance value sensed by the overlapping and intersecting square-shaped area between the driving electrode channel 0 and the sensing electrode channel 1 is 84, while the capacitance value sensed by the overlapping and intersecting square-shaped area between the driving electrode channel 0 and the sensing electrode channel 2 is 401. It can be seen that the square-shaped area, as the smallest capacitance recognition unit, can recognize a unique capacitance value that is different from other areas when the user operates.

[0043] Drive electrode channel 2 Drive electrode channel 1 Drive electrode channel 0 …… …… …… …… Sensing electrode channel 1 16 20 84 Sensing electrode channel 2 19 53 401 Sensing electrode channel 3 12 40 225 …… …… …… ……

[0044] Table 1 Capacitance values ​​of curved screen terminals in related technologies when recognizing user operations

[0045] Generally speaking, curved screen devices will automatically set a capacitance threshold value, which is generally between 60 and 70. When the detected capacitance value is less than the capacitance threshold value, it is identified as a noise signal and not processed; when the detected capacitance value is greater than the capacitance threshold value, it is identified as valid reporting data and participates in the weekly standard calculation. Weekly standard calculation refers to the calculation of a set of identified capacitance values ​​to identify the specific location where the user performs touch operations on the curved screen device. Among them, the set of capacitance values ​​identified in the weekly standard calculation comes from the capacitance values ​​sensed at the same time in multiple square-shaped areas formed when the sensing electrode overlaps and intersects with the driving electrode.

[0046] Referring to the capacitance values ​​obtained from each square-shaped area in Table 1, it can be seen that when the user's finger clicks the "edge" position of the curved screen, the capacitance value sensed by the driving electrode channel 0 changes greatly, and the capacitance values ​​of the square-shaped area formed by the overlapping and intersection of the driving electrode channel 0 and the sensing electrode channel 1, the sensing electrode channel 2, and the sensing electrode channel 3 are 84, 401, and 225, respectively, which are all greater than the preset capacitance threshold value, so the electrode signals received at these positions are valid. The capacitance values ​​received by the driving electrode channel 1 and the driving electrode channel 2 change less, and the capacitance values ​​of the square-shaped area formed by the overlapping and intersection of the driving electrode channel 1 and the sensing electrode channel 1, the sensing electrode channel 2, and the sensing electrode channel 3 are 20, 53, and 40, respectively, and the capacitance values ​​of the square row area formed by the overlapping and intersection of the driving electrode channel 2 and the sensing electrode channel 1, the sensing electrode channel 2, and the sensing electrode channel 3 are 16, 19, and 12, respectively, which are all less than the preset capacitance threshold value and can be identified as noise, so the electrode signals received at these positions are invalid. Therefore, when this group of capacitance values ​​is transmitted to the CPU of the terminal and the weekly standard calculation is performed, the user operation may be processed as a noise signal due to insufficient number of reporting points. It may also be because only the reporting point data of the driving electrode channel 0 is recognized, resulting in the calculated user touch operation position being located at the edge of the screen and offset from the actual touch operation position.

[0047] Therefore, if Figure 2-6 Although the curved screen shown in is widely used in related technologies, it has certain defects, that is, the touch sensitivity and accuracy of the edge area of ​​the curved screen are poor.

[0048] In order to improve the touch sensitivity and accuracy of the edge area of ​​the curved screen, the present disclosure provides an embodiment that can overcome the above-mentioned problems.

[0049] Figure 7 The figure is a schematic diagram of an electrode structure of a conductive layer of a curved screen according to an exemplary embodiment of the present disclosure. Figure 8 FIG. 1 is a schematic diagram showing an interactive operation performed using a curved screen according to an exemplary embodiment of the present disclosure. Figure 7-8As shown, the curved screen has a glass cover 801, the glass cover 801 includes a flat area and a curved area, and the curved area is located at the edge of the glass cover; a plurality of electrodes 802, the electrodes 802 are arranged on the back side of the glass cover, including a first electrode 701, the main body of the first electrode 701 is arranged in the flat area, and the first electrode 701 at least partially extends to the curved area.

[0050] In the disclosed embodiment, most of the middle area of ​​the curved screen is a plane area, and the curved area may be located at the left and right edges of the curved screen. The curved area does not bend in the longitudinal Y-axis direction, and only bends downward in the transverse X-axis direction along the normal direction of the curved screen. Therefore, the glass cover 801 of the curved screen is also divided into a plane area and a curved area. Below the glass cover 801, a plurality of sensing electrodes and a plurality of driving electrodes are distributed in a transverse and longitudinal manner, respectively. In this embodiment, the plurality of electrodes parallel to the transverse X-axis direction and distributed at equal intervals are sensing electrodes, and the plurality of electrodes parallel to the longitudinal Y-axis direction and distributed at equal intervals are driving electrodes. Among them, Figure 7-8 The multiple electrodes 802 shown in the figure are all driving electrodes. The first electrode 701 is a driving electrode among the multiple electrodes 802 that are mainly arranged in the planar area and at least partially extend to the curved area. In other embodiments, the positions of the sensing electrode and the driving electrode under the glass cover 801 can be interchanged, and when the positions of the sensing electrode and the driving electrode are interchanged, the electrode types of the multiple electrodes 802 and the first electrode 701 are also changed accordingly, for example, changed to sensing electrodes.

[0051] Similarly, the curved screen can also be designed so that most of the middle area is a flat area, and the upper and lower edge areas are curved areas, that is, the top and bottom of the terminal. The curved area does not bend in the horizontal X-axis direction, and only bends downward along the normal direction of the curved screen in the vertical Y-axis direction. In one embodiment, if the upper and lower edges of the curved screen are bent, under the glass cover 801, the multiple electrodes parallel to the horizontal X-axis direction and distributed at equal intervals are sensing electrodes, and the multiple electrodes parallel to the vertical Y-axis direction and distributed at equal intervals are driving electrodes. At this time, the multiple electrodes 802 are all sensing electrodes. The first electrode 701 is a sensing electrode among the multiple electrodes 802 that are mainly arranged in the flat area and at least partially extend to the curved area. Similarly, in other embodiments, the positions of the sensing electrode and the driving electrode located under the glass cover 801 can also be interchanged. When the positions of the sensing electrode and the driving electrode are interchanged, the electrode types of the multiple electrodes 802 and the first electrode 701 are also changed accordingly, for example, changed to driving electrodes.

[0052] In the embodiment of the present disclosure, the middle area of ​​the glass cover plate 801 has a curvature of zero and is called a plane area; the area at the edge of the glass cover plate where the curvature is not zero, that is, the area from the edge of the glass cover plate to the area with the largest curvature is called a curved surface area; the boundary line between the curved surface area and the plane area is called an intersection line 803.

[0053] In one embodiment of the present disclosure, the scheme that the first electrode 701 at least partially extends to the curved surface area may include the following situations:

[0054] In one embodiment, the side edge 804 of the first electrode 701 close to the curved surface area is extended as a whole to the intersection 803 of the plane area and the curved surface area. In this embodiment, the side edge 804 of the first electrode 701 close to the curved surface area is extended as a whole, which means that all points on the side edge 804 are translated toward the adjacent curved surface area in the horizontal X-axis direction. The overall extension excludes the concave or convex shape on the side edge 804. In the embodiment of the present disclosure, the side edge 804 is translated as a whole along the horizontal X-axis direction where the curved screen is located, and is translated to the boundary between the curved surface area and the plane area, that is, the position of the intersection 803.

[0055] In another embodiment, the first electrode has an edge 804 on one side close to the curved surface area that extends beyond the intersection line 803 to the back side of the curved surface area. In this embodiment, the edge 804 on one side of the first electrode is translated as a whole along the horizontal axis direction where the curved screen is located, and is translated across the boundary between the curved surface area and the flat surface area, and is translated to the outside of the intersection line 803. At this time, the edge 804 on one side is located on the back side of the curved surface area, that is, below the curved surface area of ​​the outer part of the glass cover plate at the intersection line 803. Since the curved surface area of ​​the glass cover plate is curved downward, the back side of the curved surface area refers to the position of the electrode layer protected by the glass cover plate below the curved surface area.

[0056] In one embodiment of the present disclosure, the plurality of electrodes further include a second electrode 702 disposed in the curved surface area, the second electrode 702 is of the same electrode type as the first electrode 701, and part or all of the electrode channel of the second electrode 702 is located on the back side of the curved surface area of ​​the glass cover. The second electrode 702 and the first electrode 701 can be multiple, and are disposed one-to-one in the curved edge portion of the curved screen. The second electrode 702 and the first electrode 701 can be arranged in parallel, without interlaced parts. Specifically, the channel shapes of the first electrode 701 and the second electrode 702 are both regular long rectangles, and the first electrode 701 and the second electrode 702 are adjacent and separated by a channel gap, so the first electrode 701 and the second electrode 702 can carry different capacitance values ​​respectively. At this time, since the position of the first electrode 701 is close to the curved surface area, when the finger clicks the "edge" of the curved screen, the minimum distance between the first electrode 701 and the finger is less than 0.5 mm, ensuring that the capacitance value obtained by the first electrode channel when the user operates is valid. Therefore, the accuracy of the circumference calculation of the curved screen device is guaranteed as a whole.

[0057] Table 2 is a list of capacitance values ​​detected when the curved screen terminal recognizes user operations in an embodiment of the present disclosure. Referring to the capacitance values ​​obtained in each square-shaped area in Table 2, it can be seen that when the user's finger electrode is at the "edge" position of the curved screen, the driving electrode channel 0 senses a large capacitance value change, and the capacitance values ​​of the square-shaped area formed by the overlapping and intersection of the driving electrode channel 0, the sensing electrode channel 1, and the sensing electrode channel 2 are 207 and 380 respectively, both of which are greater than the preset capacitance threshold value, and the capacitance values ​​of the square-shaped area formed by the overlapping and intersection of the driving electrode channel 1 and the sensing electrode channel 1 and the sensing electrode channel 2 are 120 and 160 respectively, both of which are greater than the preset capacitance threshold value, indicating that the driving electrode channel 1 also senses a large capacitance value change at the same time, while the capacitance value changes in other areas are very small and will be identified as noise. Since both the driving electrode channel 0 and the driving electrode channel 1 can recognize a large change in capacitance value, when the group of capacitance values ​​is transmitted to the CPU of the terminal for weekly standard calculation, the CPU will calculate the position of the user operation based on the capacitance values ​​of multiple different square-shaped areas belonging to multiple different driving electrode channels. Compared with Table 1, which calculates the user operation position only based on the capacitance value of the square area of ​​driving electrode channel 0, the technical solution in Table 2 can more accurately calculate the user operation position, avoiding the problem that the user operation position recognized by the curved screen is offset to the edge of the screen.

[0058] Drive electrode channel 2 Drive electrode channel 1 Drive electrode channel 0 …… …… …… …… Sensing electrode channel 1 18 120 207 Sensing electrode channel 2 23 160 380 Sensing electrode channel 3 18 24 43 …… …… …… ……

[0059] Table 2 Capacitance values ​​when the curved screen terminal recognizes user operation in one embodiment of the present disclosure

[0060] Fig. 9It is a schematic diagram of an electrode structure of a conductive layer of a curved screen according to another exemplary embodiment of the present disclosure. Fig.10 1 is a schematic diagram showing an interactive operation using a curved screen according to another exemplary embodiment of the present disclosure. In addition to being extended as a whole, the side edge of the first electrode 901 close to the curved area can also be partially extended. That is, there is a first flange 903 or a first groove 904 on the side edge, and when the side edge as a whole does not move any more, the first flange 903 can continue to extend into the curved area.

[0061] Through the above method, when the user clicks on the curved area, the first electrode 901 which is generally arranged in the flat area can also sense the user's touch operation, thereby transmitting the changed capacitance value to the curved screen terminal, providing more reference data for the curved screen terminal to perform weekly calibration calculations, and thereby improving the sensitivity and accuracy of the curved screen to user operation recognition.

[0062] In another embodiment of the present disclosure, the second electrode 902 is distributed in an alternating manner with the first electrode 901. Specifically, the first electrode 901 is adjacent to the second electrode 902, and the adjacent sides include first flanges 903 and first grooves 904 that are staggered with each other, so that the gap between the first electrode 901 and the second electrode 902 is not too large, which can ensure that the display module distributed under the electrode provides the user with uniform screen brightness through the transparent electrode layer where the multiple electrodes are located, and ensure that the first electrode 901 and the second electrode 902 are distributed simultaneously in an area parallel to the longitudinal Y axis of the curved screen.

[0063] like Figure 9-10 As shown, the first electrode 901 has a plurality of first flanges 903, the second electrode 902 has a plurality of first grooves 904, and the first flanges 903 extend from the main body of the first electrode 901 toward the curved surface area and extend into the first grooves 904. This electrode channel design method can also enable the first electrode 901 to recognize the user's operation when the user's finger clicks on the "edge" of the curved screen. Although the main part of the first electrode 901 is still farther than 1.0mm from the finger at this time, it can ensure that the distance between the first flange 903 of the first electrode 901 and the finger is less than 0.5mm. Since the first electrode 901 and the second electrode 902 are Fig.10 The dotted parts in the figure are staggered, which makes it easier for the position of the user's finger to fall into multiple electrode channels when the user clicks, thereby generating more effective point reporting data for calculating the exact position of the user's operation.

[0064] Fig.11 It is a schematic diagram of an electrode structure of a conductive layer of a curved screen according to another exemplary embodiment of the present disclosure. Fig.12FIG. 1 is a schematic diagram showing an interactive operation performed using a curved screen according to another exemplary embodiment of the present disclosure. Figure 11-12 As shown, on the basis of the previous embodiment, in addition to the first flange 1103 of the first electrode 1101 and the first groove 1104 of the second electrode 1102, the second electrode 1102 also has a plurality of second flanges 1105, and the main body of the first electrode 1101 also has a plurality of second grooves 1106, and the second grooves 1106 and the second flanges 1105 are alternately distributed in sequence, and the second flanges 1105 extend into the second grooves 1106. This electrode channel design method can also enable the first electrode 1101 to recognize the user's operation when the user's finger clicks on the "edge" of the curved screen. Although the distance between the main body of the first electrode 1101 and the finger is still greater than 1.0 mm at this time, it can ensure that the distance between the flange or groove part of the first electrode 1101 and the finger is less than 0.5 mm. Relative to Figure 9-10 The embodiment disclosed in the present embodiment can provide a wider interlaced space of the first electrode 1101 and the second electrode 1102, the interlaced space is located in the plane area of ​​the curved screen and extends to the intersection of the curved area and the plane area, and the second flange 1105 of the second electrode 1102 is partially located at the edge of the plane area. Therefore, when the user clicks on the edge of the plane area, the second electrode 1102 located in the curved area can also sense the change in capacitance value, thereby participating in reporting the point and providing an accurate user operation position.

[0065] The first electrode and the second electrode in the embodiment of the present disclosure are of the same type, and may be both driving electrodes or both sensing electrodes.

[0066] Based on the same concept, the embodiment of the present disclosure also provides a method for manufacturing a curved screen.

[0067] Fig.13 FIG. 1 is a flow chart of a method for manufacturing a curved screen according to an exemplary embodiment of the present disclosure. Fig.13 As shown, the curved screen manufacturing method includes the following steps:

[0068] Step S11, providing a glass cover plate, and defining a flat area and a curved area on the glass cover plate.

[0069] In the disclosed embodiment, the plane area is distributed at the center of the glass cover plate, and the curved area is distributed at the edge of the glass cover plate.

[0070] Step S12: mounting a plurality of electrodes on the back side of the glass cover.

[0071] The plurality of electrodes mounted on the back side of the glass cover plate include a first electrode. The first electrode body is mounted on the plane area and at least partially extends to the curved area.

[0072] In one embodiment, mounting the first electrode body on the planar area includes extending the edge of the first electrode close to the curved area as a whole to the intersection of the planar area and the curved area; or extending the edge of the first electrode close to the curved area as a whole beyond the intersection to the back side of the curved area.

[0073] In one embodiment, the plurality of electrodes further include a second electrode. The plurality of electrodes are mounted on the back side of the glass cover plate, including: mounting the second electrode on the curved surface area; and staggering the first electrode and the second electrode.

[0074] In one embodiment, the first electrode is provided with a plurality of first flanges extending from the main body toward the curved surface, the second electrode is provided with a plurality of first grooves corresponding to the first flanges, and a plurality of electrodes are mounted on the back side of the glass cover plate, further comprising: the first flange is provided in the first groove.

[0075] In another embodiment, the second electrode is provided with a plurality of second flanges, the first electrode is provided with a plurality of second grooves corresponding to the second flanges, and a plurality of electrodes are mounted on the back side of the glass cover plate, further comprising: the second flanges are provided in the second grooves. The second grooves and the first flanges on the first electrode body are alternately distributed on the same side.

[0076] Since the structural features of the curved screen have been described in detail in this article, the curved screen manufacturing method corresponding to the curved screen will not be described repeatedly here.

[0077] Based on the same concept, an embodiment of the present disclosure further provides a terminal, comprising the curved screen as described above.

[0078] Since the structural features of the curved screen have been described in detail in this article, the curved screen terminal corresponding to the curved screen will not be described repeatedly here.

[0079] It is understandable that the curved screen terminal provided by the embodiment of the present disclosure includes hardware structures and / or software modules corresponding to the execution of each function in order to realize the above functions. In combination with the units and algorithm steps of the examples disclosed in the embodiment of the present disclosure, the embodiment of the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the technical solution of the embodiment of the present disclosure.

[0080] Fig.141400 is a schematic diagram of a curved screen terminal according to an exemplary embodiment of the present disclosure. For example, the device 1400 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0081] Reference Fig.14 , the device 1400 may include one or more of the following components: a processing component 1402 , a memory 1404 , a power component 1406 , a multimedia component 1408 , an audio component 1410 , an input / output (I / O) interface 1412 , a sensor component 1414 , and a communication component 1416 .

[0082] The processing component 1402 generally controls the overall operation of the device 1400, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 1402 may include one or more processors 1420 to execute instructions to perform all or part of the steps of the above-described method. In addition, the processing component 1402 may include one or more modules to facilitate the interaction between the processing component 1402 and other components. For example, the processing component 1402 may include a multimedia module to facilitate the interaction between the multimedia component 1408 and the processing component 1402.

[0083] The memory 1404 is configured to store various types of data to support operations on the device 1400. Examples of such data include instructions for any application or method operating on the device 1400, contact data, phone book data, messages, pictures, videos, etc. The memory 1404 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0084] The power component 1406 provides power to the various components of the device 1400. The power component 1406 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the device 1400.

[0085] The multimedia component 1408 includes a screen that provides an output interface between the device 1400 and the user. In some embodiments, the screen includes a liquid crystal display (LCD) and a touch panel (TP). The screen is implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor can not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 1408 includes a front camera and / or a rear camera. When the device 1400 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have a focal length and optical zoom capability.

[0086] The audio component 1410 is configured to output and / or input audio signals. For example, the audio component 1410 includes a microphone (MIC), and when the device 1400 is in an operating mode, such as a call mode, a recording mode, and a speech recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 1404 or sent via the communication component 1416. In some embodiments, the audio component 1410 also includes a speaker for outputting audio signals.

[0087] I / O interface 1412 provides an interface between processing component 1402 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, a home button, a volume button, a start button, and a lock button.

[0088] The sensor assembly 1414 includes one or more sensors for providing various aspects of the status assessment of the device 1400. For example, the sensor assembly 1414 can detect the open / closed state of the device 1400, the relative positioning of components, such as the display and keypad of the device 1400, the sensor assembly 1414 can also detect the position change of the device 1400 or a component of the device 1400, the presence or absence of user contact with the device 1400, the orientation or acceleration / deceleration of the device 1400, and the temperature change of the device 1400. The sensor assembly 1414 can include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 1414 can also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 1414 can also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0089] The communication component 1416 is configured to facilitate wired or wireless communication between the device 1400 and other devices. The device 1400 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 1416 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 1416 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0090] In an exemplary embodiment, the device 1400 can be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components to perform the above methods.

[0091] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 1404 including instructions, and the instructions can be executed by a processor 1420 of the device 1400 to perform the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0092] It is further understood that in the present disclosure, "plurality" refers to two or more than two, and other quantifiers are similar thereto. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. The singular forms "a", "the" and "the" are also intended to include plural forms, unless the context clearly indicates other meanings.

[0093] It is further understood that the terms "first", "second", etc. are used to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other, and do not indicate a specific order or degree of importance. In fact, the expressions "first", "second", etc. can be used interchangeably. For example, without departing from the scope of the present disclosure, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information.

[0094] It is further understood that, although the operations are described in a specific order in the drawings in the embodiments of the present disclosure, it should not be understood as requiring the operations to be performed in the specific order shown or in a serial order, or requiring the execution of all the operations shown to obtain the desired results. In certain environments, multitasking and parallel processing may be advantageous.

[0095] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0096] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A curved screen, characterized in that: include: A glass cover plate, wherein the glass cover plate comprises a flat surface area and a curved surface area, and the curved surface area is located at an edge of the glass cover plate; A plurality of electrodes, wherein the electrodes are arranged on the back side of the glass cover plate, including a first electrode, the first electrode body is arranged in the planar area, and the first electrode at least partially extends to the curved area, Wherein, the first electrode at least partially extends to the intersection of the planar area and the curved area, or The first electrode at least partially extends beyond the intersection line; The first electrode is one of the plurality of electrodes, and a length direction of the first electrode is parallel to the intersection line.

2. The curved screen according to claim 1, characterized in that: include: The first electrode extends entirely along one side edge close to the curved surface area to the intersection line between the planar area and the curved surface area; or, The first electrode extends entirely along one side edge close to the curved surface area beyond the intersection line to the back side of the curved surface area.

3. The curved screen according to claim 1, characterized in that: The plurality of electrodes further include a second electrode disposed in the curved surface area; The first electrodes and the second electrodes are arranged alternately.

4. The curved screen according to claim 3, characterized in that: include: The first electrode has a plurality of first protrusions, the second electrode has a plurality of first grooves, and the first protrusions extend from the main body of the first electrode toward the curved surface area and extend into the first grooves.

5. The curved screen according to claim 4, characterized in that: include: The second electrode has a plurality of second flanges, the main body of the first electrode has a plurality of second grooves, and the second grooves and the first flanges are alternately distributed in sequence; The second flange extends into the second groove.

6. A method for manufacturing a curved screen, characterized in that: include: Providing a glass cover plate, defining a flat area and a curved area on the glass cover plate, so that the curved area is located at the edge of the glass cover plate; A plurality of electrodes are mounted on the back side of the glass cover, including a first electrode, and the first electrode body is mounted on the plane area. Wherein, the first electrode at least partially extends to the intersection of the planar area and the curved area, or The first electrode at least partially extends beyond the intersection line; The first electrode is one of the plurality of electrodes, and a length direction of the first electrode is parallel to the intersection line.

7. The method for manufacturing a curved screen according to claim 6, characterized in that: The step of mounting the first electrode body on the planar region includes: The first electrode is made to extend its edge close to the curved area as a whole to the intersection of the planar area and the curved area; or, The first electrode is made to extend its edge on one side close to the curved surface area beyond the intersection line to the back side of the curved surface area.

8. The method for manufacturing a curved screen according to claim 6, characterized in that: The plurality of electrodes further include a second electrode; and mounting the plurality of electrodes on the back side of the glass cover plate includes: mounting the second electrode on the curved surface area, and making the first electrode and the second electrode alternately distributed.

9. The method for manufacturing a curved screen according to claim 8, characterized in that: The method further comprises: The first electrode is provided with a plurality of first flanges extending from the main body toward the curved surface area; The second electrode is provided with a plurality of first grooves corresponding to the first flange; The method of mounting the plurality of electrodes on the back side of the glass cover plate further includes: disposing the first flange in the first groove.

10. The method for manufacturing a curved screen according to claim 9, characterized in that: The method further comprises: Providing the second electrode with a plurality of second flanges; The first electrode is provided with a plurality of second grooves corresponding to the second flange; The method of mounting the plurality of electrodes on the back side of the glass cover plate further includes: disposing the second flange in the second groove.

11. A terminal, characterized in that: include: The curved screen as claimed in any one of claims 1 to 5.

Images