Flexible folding screens and electronic products

Abstract

The present invention discloses a flexible folding screen and an electronic product, and the present invention relates to the field of screen technology, and in particular to a flexible folding screen and an electronic product. The flexible folding screen includes a foldable area and at least two non-folding areas, including two first side ends opposite to each other in the transverse direction; the two non-folding areas are connected to the two first side ends of the foldable area correspondingly; wherein the touch detection signal line and the touch drive signal line on the foldable area are arranged to extend in the longitudinal direction. The touch detection signal line and the touch drive signal line in the non-folding area do not need to pass through the folding area, and at the same time, the touch detection signal line and the touch drive signal line in the folding area are consistent with the folding direction, thereby reducing the folding damage to the touch detection signal line and the touch drive signal line in the foldable area when the screen is folded, thereby improving the service life of the flexible folding screen and the accuracy of the IC reporting point.

Description

Technical Field

[0001] The present invention relates to the field of screen technology, and in particular to the field of flexible folding screen and electronic product technology. Background Art

[0002] The development prospects of touch screen technology are good. It breaks the convention, adds fun to the product, brings people unprecedented convenience and visual impact, and opens up new development directions in some creative design display and interactive fields. In addition, touch screens are also used in automobiles / home appliances and other fields, greatly enhancing people's visual experience, and will become mainstream products in the future. However, flexible screens are gradually becoming mainstream products, and corresponding folding screens and other products are beginning to be accepted by users.

[0003] However, the existing folding screen has a bending area that is bent multiple times and after long-term use, the signal transmission in the bending area fails and the IC false alarm rate is high, which affects the accuracy and service life of the flexible folding screen, is not conducive to improving product specifications and user experience, and the screen reliability is poor. Summary of the invention

[0004] The main purpose of the present invention is to propose a flexible folding screen and electronic product, aiming to solve the problems in the prior art such as failure of signal transmission in the bending area, high IC false alarm rate, affecting the accuracy and service life of the flexible folding screen, being unfavorable to product specification improvement and user experience, and poor screen reliability.

[0005] To achieve the above object, the present invention provides a flexible folding screen, comprising:

[0006] a foldable region including two first side ends opposite to each other in the transverse direction; and

[0007] At least two unfolded areas, correspondingly connected to two first side ends of the foldable area;

[0008] Wherein, the touch detection signal lines and the touch drive signal lines on the foldable area are arranged to extend in the longitudinal direction.

[0009] Optionally, the touch detection signal lines and the touch drive signal lines on the foldable area extend in the longitudinal direction as a whole; or,

[0010] Part of the touch detection signal lines and the touch drive signal lines on the foldable area are arranged obliquely with respect to the longitudinal direction, and the other parts extend along the longitudinal direction.

[0011] Optionally, the flexible folding screen has a connecting layer, and the connecting layer is a metal connecting layer;

[0012] The metal traces of the metal connection layer of the foldable area form a touch detection channel and a touch drive channel on the foldable area.

[0013] Optionally, the material of the metal connection layer includes at least one of copper, molybdenum, silver, platinum and gold; and / or,

[0014] At least one side of the metal connection layer is further provided with a protective layer, and the material of the protective layer includes silicon oxide.

[0015] Optionally, the flexible folding screen has a cover glass layer and a black matrix color film layer, wherein:

[0016] The black matrix color film layer is located between the cover glass layer and the metal connection layer;

[0017] The touch detection channel and the touch drive channel of the foldable area are located in the black matrix coverage area of ​​the black matrix color filter layer.

[0018] Optionally, the two non-folding areas are respectively provided with a centralized wiring area;

[0019] The touch detection signal lines and the touch driving signal lines on the foldable area are connected at one of the concentrated wiring areas.

[0020] Optionally, the foldable area is formed with a plurality of patterns, the plurality of patterns including a touch drive pattern and a touch detection pattern, wherein there are gaps between the plurality of patterns for wiring touch detection signal lines and touch drive signal lines, and the touch detection signal lines and the touch drive signal lines are staggered.

[0021] Optionally, the shape of the touch driving pattern is the same as the shape of the touch detection pattern, wherein the shape of the touch driving pattern includes any one of a rhombus, a triangle, a rectangle and a circle; and / or,

[0022] The distribution density of the touch driving pattern in the foldable area is S1, the distribution density of the touch detection pattern in the foldable area is S2, the distribution density of the touch driving pattern in the non-folding area is S3, and the distribution density of the touch detection pattern in the non-folding area is S4, wherein S1>S3, S2>S4.

[0023] The present invention also proposes an electronic product, which includes the flexible folding screen. The flexible folding screen includes a foldable area and at least two non-folding areas, including two first side ends opposite to each other in the transverse direction; the two non-folding areas are correspondingly connected to the two first side ends of the foldable area; wherein the touch detection signal line and the touch drive signal line on the foldable area are arranged to extend in the longitudinal direction.

[0024] Optionally, the electronic product includes a vehicle-mounted display, a Pad, a computer, a mobile phone or a television.

[0025] In the technical solution of the present invention, the touch detection signal line and the touch drive signal line on the foldable area are extended longitudinally, and the two non-folding areas are connected to the two first side ends of the foldable area accordingly, so that when the flexible folding screen is folded, the touch detection signal line and the touch drive signal line on the foldable area are extended longitudinally, that is, the touch detection signal line and the touch drive signal line on the foldable area are extended along the crease direction, thereby reducing the multiple folding of the touch detection signal line and the touch drive signal line on the foldable area when the screen is repeatedly folded, so that the probability of breakage and damage of the touch detection signal line and the touch drive signal line on the foldable area is reduced, thereby improving the service life of the flexible folding screen and improving the accuracy of IC reporting. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0027] Figure 1 The present invention is a schematic diagram of the wiring of the touch detection channel and the touch drive channel of the flexible folding screen in the prior art.

[0028] Figure 2 A schematic diagram of the wiring of touch detection channels and touch drive channels in the foldable area and non-folding area of ​​a flexible folding screen provided in one embodiment of the present invention.

[0029] Figure 3 A schematic diagram of the wiring of touch detection channels and touch drive channels in the foldable area and non-folding area of ​​a flexible folding screen provided in yet another embodiment of the present invention.

[0030] Figure 4 A schematic diagram of a connection layer, an insulating layer and a protective layer in a foldable area of ​​a flexible folding screen provided in one embodiment of the present invention.

[0031] Figure 5 It is a schematic diagram of the connection layer, pattern layer, insulation layer and protective layer of the flexible folding screen in the prior art.

[0032] Figure 6 A schematic diagram of a film layer of a flexible folding screen provided in one embodiment of the present invention.

[0033] Description of the accompanying drawings of the embodiments provided by the present invention:

[0034]

[0035] DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0038] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0039] The development prospects of touch screen technology are good. It breaks the convention, adds fun to the product, brings people unprecedented convenience and visual impact, and opens up new development directions in some creative design display and interactive fields. In addition, touch screens are also used in automobiles / home appliances and other fields, greatly enhancing people's visual experience, and will become a mainstream product in the future. However, flexible screens are gradually becoming mainstream products, and corresponding folding screens and other products are beginning to be accepted by users.

[0040] However, the existing folding screen has a bending area that is bent multiple times and after long-term use, the signal transmission in the bending area fails and the IC false alarm rate is high, which affects the accuracy and service life of the flexible folding screen, is not conducive to improving product specifications and user experience, and the screen reliability is poor.

[0041] like Figure 1As shown, in the current flexible folding screen, the touch drive signal lines and touch detection channel signal lines in the folding area and the non-folding area are shared respectively, and are wired in a grid-like manner along the length and width of the screen. Therefore, when folded multiple times, the signal lines perpendicular to the crease direction will also be folded multiple times. Due to long-term bending actions such as stretching and compression, the touch signal lines perpendicular to the crease direction are prone to breakage and the silicon oxide insulating layer is damaged, resulting in signal transmission failure.

[0042] In view of this, if Figure 2 and Figure 3 As shown, the present invention proposes a flexible folding screen 100, which includes a foldable area 1 and at least two non-folding areas 2, wherein the foldable area 1 includes two opposite first side ends 11; the at least two non-folding areas 2 are correspondingly connected to the two first side ends 11 of the foldable area 1; wherein the touch detection signal line 14 and the touch drive signal line 13 on the foldable area 1 are arranged to extend along the longitudinal direction.

[0043] In the technical solution of the present application, the touch detection signal line 14 and the touch drive signal line 13 on the foldable area 1 extend longitudinally, and the two non-folding areas 2 are connected to the two first side ends 11 of the foldable area 1 accordingly, so that when the flexible folding screen 100 is folded, the touch detection signal line 14 and the touch drive signal line 13 on the foldable area 1 extend longitudinally, that is, the touch detection signal line 14 and the touch drive signal line 13 on the foldable area 1 extend along the crease direction, thereby reducing the multiple folding of the touch detection signal line 14 and the touch drive signal line 13 on the foldable area 1 when the screen is repeatedly folded, so that the probability of breakage and damage of the touch detection signal line 14 and the touch drive signal line 13 on the foldable area 1 is increased, thereby improving the service life of the flexible folding screen 100 and the accuracy of IC reporting.

[0044] The signal routing mode of a single module in which the foldable area 1 and the non-foldable area 2 respectively share the touch drive channel signal and the touch detection channel signal is changed to a separate touch drive channel signal and touch detection channel signal routing of the foldable area 1, so that the touch drive channel signal and touch detection channel signal routing of the non-foldable area 2 do not need to cross the foldable area 1, and the foldable area 1 extends along the folding direction, thereby reducing the probability of the touch drive channel signal and touch detection channel signal routing of the foldable area 1 being folded, and improving the service life of the touch drive channel signal and touch detection channel signal routing of the foldable area 1.

[0045] In some embodiments of the present invention, in order to facilitate wiring, the touch detection signal line 14 and the touch drive signal line 13 on the foldable area 1 are extended in the longitudinal direction as a whole. Such a configuration can further prevent the touch detection signal line 14 and the touch drive signal line 13 on the foldable area 1 from being folded, reduce the probability of breakage and damage, increase the service life of the flexible folding screen 100, and improve the accuracy of IC reporting.

[0046] In some embodiments of the present invention, some sections of the touch detection signal line 14 and the touch drive signal line 13 on the foldable area 1 are arranged obliquely to the longitudinal direction, and the other sections extend along the longitudinal direction. In this way, the touch detection signal line 14 and the touch drive signal line 13 on the foldable area 1 can shuttle through the gap between the touch detection pattern 16 and the touch drive pattern 15 on the foldable area 1, which is convenient for wiring, while reducing the probability of breakage and damage, improving the service life of the flexible folding screen 100, and improving the accuracy of IC reporting.

[0047] like Figure 4 As shown, in some embodiments of the present invention, the flexible folding screen 100 has a connection layer 17, and the connection layer 17 is a metal connection layer; the metal wiring of the metal connection layer of the foldable area 1 forms a touch detection channel and a touch drive channel on the foldable area 1. Since the touch detection channel and the touch drive channel on the foldable area 1 are separated from the touch detection channel and the touch drive channel of the non-folding area 2 and are separately provided, in order to increase the service life of the touch detection channel and the touch drive channel on the foldable area 1, the touch detection channel and the touch drive channel on the foldable area 1 are provided in the metal connection layer, and the ductility of the metal can be used to increase the folding strength of the foldable area 1, thereby increasing the service life of the flexible folding screen 100 and improving the accuracy of IC reporting. As shown Figure 5 As shown, unlike the arrangement in which the touch detection pattern 16 and the touch drive pattern 15 in the touch detection channel and the touch drive channel are placed in the pattern layer 20 in the non-folding area 2, and the metal connection layer is used as a signal line to pass through the pattern layer 20 to connect the touch detection pattern 16 and the touch drive pattern 15, the touch detection pattern 16 and the touch drive pattern 15 and the touch detection signal line 14 and the touch drive signal line 13 of the foldable area 1 in the present invention are all arranged in the metal connection layer. The touch detection signal line 14 and the touch drive signal line 13 of the foldable area 1 can be made independent of each other and do not interfere with each other through a unique routing method.

[0048] In some embodiments of the present invention, the material of the metal connection layer includes at least one of copper, molybdenum, silver, platinum and gold. Using at least one of the above metals can further improve the folding strength of the foldable area 1, increase the service life of the flexible folding screen 100, and improve the accuracy of IC reporting.

[0049] In order to protect the metal connection layer of the foldable area 1 and improve the service life of the metal connection layer of the foldable area 1, at least one side of the metal connection layer is further provided with a protective layer 19, and the material of the protective layer includes silicon oxide. It should be noted that an insulating layer 18 may also be provided, and the insulating layer is provided between the connecting layer 17 and the protective layer 19. The material of the insulating layer 18 may be the same as or different from that of the protective layer 19, and the present invention is not limited thereto.

[0050] Since metals are mostly materials with good reflective ability, in order to alleviate the screen reflection problem caused by the strong reflection of light by the metal pattern of the foldable area 1, a black matrix color film layer 120 can be used in conjunction with the use of a polarizer to correct the abnormal reflection problem of the flexible folding screen 100 and improve the screen quality. Figure 6 As shown, the flexible folding screen 100 has a cover glass layer 110 and a black matrix color film layer 120, wherein the black matrix color film layer 120 is located between the cover glass layer 110 and the metal connection layer; the touch detection channel and the touch drive channel of the foldable area 1 are located in the black matrix 1201 coverage area of ​​the black matrix color film layer 120. On the one hand, the black matrix color film layer 120 is used to replace the polarizer to improve the reflection problem of the screen. On the other hand, the touch detection channel and the touch drive channel of the foldable area 1 are located in the black matrix 1201 coverage area of ​​the black matrix color film layer 120, so that the black matrix 1201 can cover the metal pattern of the foldable area 1, avoiding the metal pattern of the foldable area 1 from being displayed on the screen, causing the display difference problem between the non-folding area 2 and the foldable area 1. Since the black matrix color film layer 120 has a structure similar to a grating, it reduces the reflection of ambient light while not blocking the light path of the flexible folding screen 100, and has basically no effect on the overall brightness of the flexible folding screen 100. Therefore, the touch detection channel and touch drive channel of the foldable area 1 are located in the black matrix 1201 coverage area of ​​the black matrix color film layer 120, which can not only ensure brightness, but also reduce light reflection, and at the same time reduce the problem of display differences in different areas.

[0051] Since the touch detection channel and the touch drive channel of the foldable area 1 are separately arranged from the touch detection channel and the touch drive channel of the non-folding area 2, multiple centralized wiring areas are required. In order to facilitate subsequent wiring, the two non-folding areas 2 are respectively provided with centralized wiring areas, which may be the edge positions of the side ends opposite to each other in the horizontal direction of the screen. The touch detection signal line 14 and the touch drive signal line 13 on the foldable area 1 can be connected at one of the centralized wiring areas.

[0052] In order to make it easier for the signal line to pass through the gap between the touch detection pattern 16 and the touch drive pattern 15, the foldable area 1 is formed with multiple patterns, and the multiple patterns include the touch drive pattern 15 and the touch detection pattern 16, wherein there is a gap between the multiple patterns for the touch detection signal line 14 and the touch drive signal line 13 to be wired, and the touch detection signal line 14 and the touch drive signal line 13 are staggered. The formation of multiple patterns in the foldable area 1 can further reduce the folding strength of the foldable area 1, improve the service life of the flexible folding screen 100, and improve the accuracy of IC reporting. There are gaps between the multiple patterns for wiring the touch detection signal lines 14 and the touch drive signal lines 13. The touch detection signal lines 14 and the touch drive signal lines 13 are staggered, so that the multiple patterns and the touch detection signal lines 14 and the touch drive signal lines 13 can be simultaneously arranged in the metal connection layer and located in the same plane. By staggering the touch detection patterns 16 and the touch drive patterns 15, the multiple touch detection signal lines 14 and the touch drive signal lines 13 can also be staggered, and the wiring is converged in the centralized wiring area, thereby improving the accuracy of the IC reporting point of a single pattern.

[0053] In some embodiments of the present invention, the shape of the touch drive pattern 15 is the same as the shape of the touch detection pattern 16, wherein the shape of the touch drive pattern 15 includes any one of a rhombus, a triangle, a rectangle and a circle. It should be noted that in order to further improve the folding strength of the foldable area 1, improve the service life of the flexible folding screen 100, and improve the accuracy of the IC reporting point, the shape of the touch drive pattern 15 can also be a hollow design, such as a grid design.

[0054] In some embodiments of the present invention, the distribution density of the touch driving pattern 15 of the foldable area 1 is S1, the distribution density of the touch detection pattern 16 of the foldable area 1 is S2, the distribution density of the touch driving pattern 15 of the non-folding area 2 is S3, and the distribution density of the touch detection pattern 16 of the non-folding area 2 is S4, wherein S1>S3, S2>S4. By S1>S3, S2>S4, that is, the distribution density S1 of the touch driving pattern 15 of the foldable area 1 is greater than the distribution density S3 of the touch driving pattern 15 of the non-folding area 2, and the distribution density S2 of the touch detection pattern 16 of the foldable area 1 is greater than the distribution density S4 of the touch detection pattern 16 of the non-folding area 2, so that within the same area, the number of touch driving patterns 15 and the number of touch detection patterns 16 in the foldable area 1 are greater than those in the non-folding area 2, that is, the number of touch driving patterns 15 and the touch detection patterns 16 in the foldable area 1 are smaller in area, more in number, and more densely distributed, which can further improve the folding strength of the foldable area 1, improve the service life of the flexible folding screen 100, and improve the accuracy of IC reporting.

[0055] It should be noted that in some embodiments of the present invention, the foldable area 1 can adopt mutual capacitive touch, and the signal of the foldable area 1 is input and detected separately, which will not cause IC false alarm points due to changes in the screen shape and deformation of the foldable area pattern when bending, and the reliability is better.

[0056] The present invention further proposes an electronic product, which includes the flexible folding screen 100. The electronic product includes all technical solutions of the flexible folding screen 100, and thus also has all beneficial effects, which will not be described in detail in the present invention.

[0057] In some embodiments of the present invention, the electronic product includes a vehicle-mounted display, a Pad, a computer, a mobile phone or a television.

[0058] To summarize, the flexible folding screen 100 provided by the present invention extends longitudinally through the touch detection signal line and the touch drive signal line on the foldable area 1, and the two non-folding areas 2 are connected to the two first side ends 11 of the foldable area 1, so that when the flexible folding screen 100 is folded, the touch detection signal line 14 and the touch drive signal line 13 on the foldable area 1 extend longitudinally, that is, the touch detection signal line 14 and the touch drive signal line 13 on the foldable area 1 extend along the crease direction, which reduces the multiple folding of the touch detection signal line 14 and the touch drive signal line 13 on the foldable area 1 when the screen is repeatedly folded, so that the probability of breakage and damage of the touch detection signal line 14 and the touch drive signal line 13 on the foldable area 1 is reduced, thereby improving the service life of the flexible folding screen 100 and improving the accuracy of IC reporting.

[0059] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. For those skilled in the art, the present invention may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the patent protection scope of the present invention.

Claims

1. A flexible folding screen, characterized in that: include: A foldable region including two first side ends opposite to each other in the transverse direction; as well as, At least two unfolded areas, correspondingly connected to two first side ends of the foldable area; Wherein, the touch detection signal lines and the touch drive signal lines on the foldable area are arranged to extend in the longitudinal direction; The flexible folding screen has a connecting layer, and the connecting layer is a metal connecting layer; The metal wiring of the metal connection layer of the foldable area forms a touch detection channel and a touch drive channel on the foldable area; The foldable area is formed with a plurality of patterns, and the plurality of patterns include a touch driving pattern and a touch detection pattern, and the touch driving pattern and the touch detection pattern are arranged on the metal connection layer.

2. The flexible folding screen according to claim 1, characterized in that: The touch detection signal lines and the touch drive signal lines on the foldable area extend in the longitudinal direction as a whole; or, Part of the touch detection signal lines and the touch drive signal lines on the foldable area are arranged obliquely with respect to the longitudinal direction, and the other parts extend along the longitudinal direction.

3. The flexible folding screen according to claim 1, characterized in that: The material of the metal connection layer includes at least one of copper, molybdenum, silver, platinum and gold; and / or, At least one side of the metal connection layer is further provided with a protective layer, and the material of the protective layer includes silicon oxide.

4. The flexible folding screen according to claim 1, characterized in that: The flexible folding screen comprises a cover glass layer and a black matrix color film layer, wherein: The black matrix color film layer is located between the cover glass layer and the metal connection layer; The touch detection channel and the touch drive channel of the foldable area are located in the black matrix coverage area of ​​the black matrix color filter layer.

5. The flexible folding screen according to claim 1, characterized in that: The two non-folding areas are respectively provided with a centralized wiring area; The touch detection signal lines and the touch driving signal lines on the foldable area are connected at one of the concentrated wiring areas.

6. The flexible folding screen according to claim 1, characterized in that: The foldable area is formed with a plurality of patterns, the plurality of patterns including a touch drive pattern and a touch detection pattern, wherein gaps are provided between the plurality of patterns for wiring touch detection signal lines and touch drive signal lines, and the touch detection signal lines and the touch drive signal lines are staggered.

7. The flexible folding screen according to claim 6, characterized in that: The shape of the touch driving pattern is the same as the shape of the touch detection pattern, wherein the shape of the touch driving pattern includes any one of a rhombus, a triangle, a rectangle and a circle; and / or, The distribution density of the touch driving pattern in the foldable area is S1, the distribution density of the touch detection pattern in the foldable area is S2, the distribution density of the touch driving pattern in the non-folding area is S3, and the distribution density of the touch detection pattern in the non-folding area is S4, wherein S1>S3, S2>S4.

8. An electronic product, characterized in that: Comprising a screen, wherein the screen comprises the flexible folding screen as described in any one of claims 1 to 7.

9. The electronic product according to claim 8, characterized in that: The electronic products include vehicle-mounted displays, Pads, computers, mobile phones or televisions.

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