Display panel, electronic equipment and touch method

Abstract

The invention discloses a display panel, electronic equipment and a touch method. The display panel comprises a first touch area and second touch areas which are mutually spaced, and the first touch area and the second touch areas are symmetrically distributed; the first touch area and the second touch area respectively comprise a plurality of touch channels extending along a first direction, and the plurality of touch channels of the first touch area are connected with the plurality of touch channels of the second touch area in a one-to-one correspondence manner; and the touch channels of the first touch area and the touch channels correspondingly connected with the second touch area are parallel to each other and are not coaxial.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a display panel, an electronic device and a touch control method. Background Art

[0002] Electronic consumer products such as mobile phones and tablets are becoming increasingly popular. In addition to normal daily communication functions, additional entertainment functions are also popular among consumers, such as short videos and electronic games. In some usage scenarios, electronic devices may need to have the function of multi-finger simultaneous touch, such as electronic game operation. In actual game processes, the left and right areas usually need to work closely together, requiring both hands to operate at the same time to perform well in the game.

[0003] Traditional touch display panels use mutual capacitance touch technology. In a weakly grounded state (such as in a non-charging state, when used with a protective case, etc.), multiple fingers can easily touch coaxially in the horizontal or vertical direction. The effective capacitance value of the touch at the corresponding position will be reduced, causing the touch position to shift. At this time, the touch position calculated by the device is not accurate. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a display panel, an electronic device and a touch control method, so as to solve the problem of inaccurate touch control when a user operates the display panel with multiple fingers.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] In a first aspect, an embodiment of the present application provides a display panel, including:

[0007] A first touch area and a second touch area spaced apart from each other, wherein the first touch area and the second touch area are symmetrically distributed;

[0008] The first touch area and the second touch area respectively include a plurality of touch channels extending along a first direction, wherein the plurality of touch channels of the first touch area are connected to the plurality of touch channels of the second touch area in a one-to-one correspondence, and the touch channels of the first touch area and the touch channels correspondingly connected to the second touch area are parallel to each other and not coaxial.

[0009] In a second aspect, an embodiment of the present application provides an electronic device, including a housing and the above-mentioned display panel, wherein the display panel is fixed to the housing.

[0010] In a third aspect, an embodiment of the present application provides a touch control method, which is applied to the above-mentioned electronic device, including:

[0011] When a touch signal is detected, obtaining a touch channel that detects the touch signal;

[0012] Determining a touch position of a user according to a touch area where the touch channel is located;

[0013] A touch operation corresponding to the touch position is performed.

[0014] In the embodiment of the present application, the touch channel of the display panel is designed in different areas, and the first touch area and the second touch area are symmetrically distributed. Since the touch channel of the first touch area is not coaxial with the touch channel of the corresponding second touch area, the user is less likely to have a weak grounding effect when operating the screen with multiple fingers, and the physical coordinates of the touch are more matched with the coordinates calculated by the software, which can improve the touch accuracy.

[0015] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is one of the schematic diagrams of the touch channel division areas in the display panel according to the embodiment of the present application;

[0017] Figure 2 This is the second schematic diagram of the touch channel division area in the display panel of the embodiment of the present application;

[0018] Figure 3 is a schematic diagram of a display panel according to an embodiment of the present application;

[0019] Figure 4 This is the third schematic diagram of the touch channel division area in the display panel of the embodiment of the present application;

[0020] Figure 5 This is a schematic diagram of the traditional touch channel arrangement;

[0021] Figure 6 It is a schematic diagram of pixel design;

[0022] Figure 7 This is one of the touch position schematic diagrams of the embodiment of the present application;

[0023] Figure 8 This is the second touch position schematic diagram of the embodiment of the present application;

[0024] Fig. 9 It is a flowchart of the touch control method according to an embodiment of the present application.

[0025] Figure numerals: 1. first touch area; 2. second touch area; 3. third touch area; 4. routing area; 31. protective layer; 32. optical adhesive layer; 33. polarizer; 34. flat layer; 35. second touch metal layer; 36. insulating layer; 37. first touch metal layer; 38. encapsulation layer; 39. cathode layer; 310. organic light-emitting layer; 311. light-emitting pixel driving layer; 312. flexible substrate. DETAILED DESCRIPTION

[0026] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0027] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this application, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0028] In the description of the present application, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "left", "right", "vertical", "horizontal", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0029] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] The display panel according to the embodiment of the present application is described below with reference to the accompanying drawings.

[0031] like Figures 1 to 8As shown, an embodiment of the present application provides a display panel, including:

[0032] A first touch area 1 and a second touch area 2 spaced apart from each other, wherein the first touch area 1 and the second touch area 2 are symmetrically distributed;

[0033] The first touch area 1 and the second touch area 2 respectively include multiple touch channels extending along a first direction, wherein the multiple touch channels of the first touch area 1 are connected to the multiple touch channels of the second touch area 2 in a one-to-one correspondence, and the touch channels of the first touch area 1 and the touch channels correspondingly connected to the second touch area 2 are parallel to each other and not coaxial.

[0034] In this embodiment, the first touch area 1 and the second touch area 2 are symmetrically distributed. The symmetrical distribution is, for example, symmetrically distributed relative to a certain point or relative to a certain line. The first touch area 1 and the second touch area 2 have the same area, and the first touch area 1 and the second touch area 2 contain the same number of touch channels. It should be noted that the symmetrical distribution here can be diagonally symmetrical (for example, symmetrical relative to a certain point), left-right symmetrical, or top-bottom symmetrical (for example, symmetrical relative to a certain line), which is not limited here.

[0035] The first touch area 1 and the second touch area 2 may be part or all of the display area in the display panel. For example, the part or all of the display area is an area where touch channel regional control is required. Then, the first touch area 1 and the second touch area 2 are symmetrically distributed in the area where touch channel regional control is required.

[0036] For example: the number of touch channels in the display panel is odd, for example, it includes 7 TX channels. In order to facilitate regional control, 6 TX channels can be controlled in different regions (one TX channel at the edge is not divided). Then the first touch area 1 and the second touch area 2 are the areas where the 6 TX channels are located (referred to as area A here), and the first touch area 1 and the second touch area 2 are symmetrically distributed in the area A, for example, symmetrically relative to the center of area A and symmetrically relative to the central axis of area A.

[0037] Assume that the entire display area of ​​the display panel needs to be controlled in different areas, and the first touch area 1 and the second touch area 2 are diagonally symmetrical, for example Figure 1As shown, the upper left area of ​​the display panel is the first touch area 1, and the lower right area is the second touch area 2; or, the first touch area 1 may also be the upper right area, and the second touch area is the lower left area, or, the first touch area 1 is the lower left area, and the second touch area 2 is the upper right area; or, the first touch area 1 is the lower right area, and the second touch area 2 is the upper left area. The one-to-one connected touch channels in the first touch area 1 and the second touch area 2 are parallel and not coaxial.

[0038] The first touch area 1 and the second touch area 2 respectively include a plurality of touch channels, and the touch channels extend along a first direction. The first direction is, for example, a length direction of the display panel. Figure 1 The a direction is shown. Figure 1 In the embodiment, the touch channel extending in the direction a is a drive channel (Transmit, TX); or, the first direction is, for example, the width direction of the display panel, such as Figure 2 In the b direction shown, the touch channel extending in the b direction is a receiving (Receive, RX) channel.

[0039] The touch channels in the first touch area 1 and the touch channels in the second touch area 2 are connected one by one, and the two correspondingly connected touch channels are parallel and not coaxial, which can be understood as the two correspondingly connected touch channels are not on the same axis, and the touch channels with the same number in the first touch area 1 and the second touch area 2 are considered to be corresponding channels. Figure 1 Shown are TX(n+2) in the upper left area and TX(n+2) in the lower right area, TX(n+3) in the upper left area and TX(n+3) in the lower right area, TX(n) in the upper right area and TX(n) in the lower left area, TX(n+1) in the upper right area and TX(n+1) in the lower left area.

[0040] For example Figure 1 As shown, Figure 1 TX(n) in the figure represents the nth touch channel, wherein the touch channels extend along the vertical direction and are arranged in sequence in the horizontal direction, and the first direction is Figure 1 The vertical direction in the image can also be considered as the length direction of the display panel. The first touch area 1 is the upper left area of ​​the display panel, and the display channels included are TX(n+2) and TX(n+3) from left to right. The second touch area 2 is the lower right area of ​​the display panel, and the display channels included are TX(n+2) and TX(n+3) from left to right. TX(n+2) of the first touch area 1 is connected to TX(n+2) of the second touch area 2, and TX(n+3) of the first touch area 1 is connected to TX(n+3) of the second touch area 2.

[0041] As another example: the first touch area 1 is the lower left area of ​​the display panel, and the display channels included are TX(n) and TX(n+1) from left to right; the second touch area 2 is the upper right area of ​​the display panel, and the display channels included are TX(n) and TX(n+1) from left to right; TX(n) of the first touch area 1 is connected to TX(n) of the second touch area 2, and TX(n+1) of the first touch area 1 is connected to TX(n+1) of the second touch area 2.

[0042] Optionally, the touch channel may be a TX touch channel or a RX touch channel, each touch channel includes a plurality of connected electrode blocks, and the electrode blocks of the TX touch channel and the electrode blocks of the RX touch channel are cross-designed.

[0043] It should be noted that the first touch area 1 may include multiple sub-areas, and the second touch area 2 may include multiple sub-areas, for example: the upper half of the display panel is the first touch area 1, which may include left and right sub-areas, the lower half of the display panel is the second touch area 2, which may include left and right sub-areas, the left sub-area of ​​the first touch area 1 and the right sub-area of ​​the second touch area 2 are symmetrically distributed, and the right sub-area of ​​the first touch area 1 and the left sub-area of ​​the second touch area 2 are symmetrically distributed. The touch channels in the symmetrically distributed first touch area 1 and the second touch area 2 are connected one by one.

[0044] In the embodiment of the present application, the touch channel of the display panel is designed in different areas, and the first touch area and the second touch area are symmetrically distributed. Since the touch channel of the first touch area 1 is not coaxial with the touch channel of the corresponding second touch area, the user is less likely to have a weak grounding effect when operating the screen with multiple fingers, and the physical coordinates of the touch are more matched with the coordinates calculated by the software, which can improve the touch accuracy.

[0045] Optionally, the touch channels contained in the symmetrical sub-areas of the first touch area 1 and the second touch area 2 are numbered in the same order.

[0046] For example Figure 1 As shown, a sub-area of ​​the first touch area 1 is the upper left area of ​​the display panel, and the touch channels are arranged in the order of TX(n+2) and TX(n+3); a sub-area symmetrical to the sub-area of ​​the first touch area 1 in the second touch area 2 is the lower right area of ​​the display panel, and the touch channels are also arranged in the order of TX(n+2) and TX(n+3), so that TX(n+2) in the first touch area 1 is connected to TX(n+2) in the second touch area 2, and TX(n+3) in the first touch area 1 is connected to TX(n+3) in the second touch area 2, and the wiring lengths of the two connections are basically the same.

[0047] Optionally, the touch channels included in the first touch area 1 and the correspondingly connected touch channels in the second touch area 2 have a first distance in the horizontal direction, and each group of correspondingly connected touch channels has the same first distance.

[0048] In this embodiment, the touch channels included in the first touch area 1 and the second touch area 2 are connected in one-to-one correspondence, and the touch channels connected in one-to-one correspondence are not coaxial. For example, the first touch area 1 includes TX1, TX2, TX3 and TX4, and the second touch area 2 also includes TX1, TX2, TX3 and TX4. In order to ensure that the one-to-one corresponding touch channels are not coaxial, the touch channels in the first touch area 1 and the second touch area 2 are arranged differently. For example, Figure 1 As shown, the touch channels in the first touch area 1 are arranged as follows: TX(n+2), TX(n+3), TX(n), TX(n+1), and the touch channels in the second touch area 2 are arranged as follows: TX(n), TX(n+1), TX(n+2), TX(n+3). The touch channels in the first touch area 1 have a first distance in the horizontal direction from the corresponding touch channels in the second touch area 2, and the first distances between each group of corresponding touch channels are the same.

[0049] For example Figure 1 As shown, it is assumed that the first touch area 1 is the upper half screen area of ​​the display panel, including two left and right sub-areas; the second touch area 2 is the lower half screen area of ​​the display panel, including two left and right sub-areas; Figure 1 In the upper left area and the lower right area, the horizontal distance between the channel TX(n+2) of the first touch area 1 and the channel TX(n+2) of the second touch area 2 is d1, and the horizontal distance between the channel TX(n+3) of the first touch area 1 and the channel TX(n+3) of the second touch area 2 is d2, and d1=d2.

[0050] for Figure 1 In the upper right area and the lower left area, the horizontal distance between the channel TX(n) of the first touch area 1 and the channel TX(n) of the second touch area 2 is d3, and the horizontal distance between the channel TX(n+1) of the first touch area 1 and the channel TX(n+1) of the second touch area 2 is d4, d3=d4=d1=d2. This ensures that the impedance of each adjacent channel is equivalent, ensuring the uniformity of the touch signal.

[0051] Optionally, the touch channel includes: a driving channel (TX channel) and / or a receiving channel (RX channel);

[0052] The driving channels are arranged in sequence along a first direction of the display panel; the receiving channels are arranged in sequence along a second direction of the display panel, or the receiving channels are arranged in sequence along the first direction of the display panel, and the driving channels are arranged in sequence along the second direction of the display panel; the first direction is perpendicular to the second direction.

[0053] In this embodiment, the first direction may be the length direction of the display panel, and the second direction may be the width direction of the display panel. The driving channel extends along the length direction of the display panel, and the receiving channel extends along the width direction of the display panel.

[0054] The first direction may also be the width direction of the display panel, and the second direction may be the length direction of the display panel. The driving channel extends along the width direction of the display panel, and the receiving channel extends along the length direction of the display panel.

[0055] The touch channel can be a TX channel, such as Figure 1 As shown, the TX channel of the first touch area 1 is connected to the TX channel of the second touch area 2 in a one-to-one correspondence.

[0056] When designing the touch channel in different areas, you can also Figure 2 As shown, the TX channel of the first touch area 1 is connected to the TX channel of the second touch area 2 correspondingly, and the RX channel of the first touch area 1 is connected to the RX channel of the second touch area 2 correspondingly.

[0057] As an optional embodiment, the first touch area 1 includes at least two sub-areas, and the second touch area 2 includes at least two sub-areas; wherein, the touch channels included in the symmetrically distributed sub-areas of the first touch area 1 and the touch channels included in the sub-areas of the second touch area 2 form a group of touch channels; in the group of touch channels, the same touch channels are connected by transmission lines.

[0058] In this embodiment, when the touch channel in the display panel is divided into regions, the first touch region 1 and the second touch region 2 may respectively include multiple sub-regions, the number of sub-regions of the first touch region 1 is the same as the number of sub-regions of the second touch region 2, and the correspondingly connected sub-regions of the first touch region 1 and the sub-regions of the second touch region 2 are grouped together. Figure 1 As shown, two groups of touch channels may be included, one of which includes: the upper left area of ​​the first touch area 1, corresponding to the lower right area of ​​the second touch area 2, and includes touch channels TX(n+2) and TX(n+3). The other group of touch channels includes: the upper right area of ​​the first touch area 1, corresponding to the lower left area of ​​the second touch area 2, and includes touch channels TX(n) and TX(n+1).

[0059] Another example Figure 2 As shown, the touch channels include TX channels and RX channels, where a group of touch channels includes: the upper left area of ​​the first touch area 1 corresponds to the lower right area of ​​the second touch area 2, and the touch channels included are TX(n+4), TX(n+5), TX(n+6), TX(n+7); RX(m), TX(m+1), TX(m+2), and the touch channels with the same number are connected to each other ( Figure 2 Another group of touch channels includes: the upper right area of ​​the first touch area 1 corresponds to the lower left area of ​​the second touch area 2, and the touch channels included are TX(n), TX(n+1), TX(n+2), TX(n+3); RX(m+3), TX(m+4), TX(m+5), and the touch channels with the same number are connected correspondingly.

[0060] Optionally, the display panel also includes: a routing area 4, wherein the routing area 4 is located between the first touch area 1 and the second touch area 2; in each group of touch channels, the touch channels located in the first touch area 1 are connected to the touch channels located in the second touch area 2 through the routing area 4 respectively.

[0061] In this embodiment, the transmission line for connecting the touch channel of the first touch area 1 and the second touch area 2 is located in the routing area 4 .

[0062] like Figure 1 As shown, the wiring area 4 is located between the first touch area 1 and the second touch area 2, separating the first touch area 1 from the second touch area 2. Figure 2 As shown, the wiring area 4 may also be located between each sub-area of ​​the first touch area 1 and between each sub-area of ​​the second touch area 2. When the touch channel in the first touch area 1 is connected to the touch channel in the second touch area 2, the transmission line is located in the wiring area 4.

[0063] Optionally, the width of the routing area 4 is determined according to the width of the transmission line and the number of touch channels.

[0064] In this embodiment, when designing the routing area 4, it can be calculated based on the number of touch channels that need to be connected and the width of each transmission line. Under the premise of satisfying the RC (resistance R, capacitance C) load, it can be designed as much as possible according to the minimum width to reduce the impact of the gap on the touch effect.

[0065] Optionally, the width of the routing area 4 is less than a first threshold value, and the first threshold value may be set based on experience in routing clearance design of multiple points of mutual capacitance, for example, the first threshold value is 2.2 mm, so that the width of the routing area 4 is not too large to avoid affecting the display performance of the display panel.

[0066] In this embodiment, in the routing area 4, when the touch channel of the first touch area 1 is connected to the touch channel of the second touch area 2, the transmission lines of multiple touch channels may have overlapping areas, and a bridge point can be set to connect the touch channels by means of a bridge to ensure that the transmission lines do not affect each other. Figure 3 As shown, the structure of the display panel is: a protective layer (Coverlay, CC) 31, an optically clear adhesive layer (Optically Clear Adhesive, OCA) 32, a polarizer (Polarizer, POL) 33, a flat layer (OC) 34, a second touch metal layer (TM2) 35, an insulating layer (SiNx) 36, a first touch metal layer (TM1) 37, a thin film encapsulation layer (TFE) 38, a cathode layer (Cathode) 39, an organic light-emitting layer (Organic Light-Emitting Diode, OLED) 310, a light-emitting pixel driving layer (Thin Film Transistor, TFT) 311, and a flexible substrate (Polyimide Film, PI) 312.

[0067] Different channel routing can be set on different metal layers, such as Figure 1 The transmission lines TX(n+2) and TX(n+3) are arranged in the first touch metal layer 37. Figure 1 The transmission lines TX(n) and TX(n+1) are shown as being disposed on the second touch metal layer 35 .

[0068] As an optional embodiment, the display panel also includes: a third touch area 3, the third touch area 3 is located between the first touch area 1 and the second touch area 2; the touch channel included in the third touch area 3 extends from the first edge to the second edge of the display panel, and the first edge and the second edge are two opposite edges in the first direction.

[0069] In this embodiment, when the touch channels are divided into regions, the divided regions can be designed only for some touch channels, for example, the region where the user's multi-finger operation is likely to occur is divided into the first touch region 1 and the second touch region 2, such as the edge region of the display panel, while the region where the user's multi-finger operation is not likely to occur (such as the middle part of the display panel) is still arranged according to the traditional touch channel, that is, no division is performed. The third touch region 3 is an area where the touch channels are not distinguished.

[0070] For example Figure 4 As shown, the touch channel of the display panel can be divided into five parts, the upper left area ( Figure 4 The area corresponding to number 41 in 4) and the lower right area (such as the area corresponding to number 42 in 4) are a corresponding set of touch channels, for example Figure 4 The area corresponding to number 41 in FIG. 4 can be considered as the first touch area, and the area numbered 42 in FIG. 4 can be considered as the corresponding second touch area, and the touch channels of these two areas are connected one by one.

[0071] Upper right area ( Figure 4 The area corresponding to number 43 in the middle) and the lower left area ( Figure 4 The area corresponding to number 44 in the figure is another set of touch channels, for example Figure 4 The area corresponding to number 43 in FIG. 4 can be considered as another first touch area, and the area numbered 44 in FIG. 4 can be considered as the corresponding second touch area. The touch channels of these two areas are connected one by one.

[0072] The middle part except the above four areas is the third touch area 3. For a set of touch channels, assuming that the upper left is the first touch area 1 and the lower right is the second touch area 2, the TX(n+6) channel in the first touch area 1 is connected to the TX(n+6) channel in the second touch area 2, and the TX(n+7) channel in the first touch area 1 is connected to the TX(n+7) channel in the second touch area 2. The RX(m) channel in the first touch area 1 is connected to the RX(m) channel in the second touch area 2, and the RX(m+1) channel in the first touch area 1 is connected to the RX(m+1) channel in the second touch area 2.

[0073] For another group of touch channels, assuming that the upper right is the first touch area 1 and the lower left is the second touch area 2, the TX(n) channel in the first touch area 1 is connected to the TX(n) channel in the second touch area 2, and the TX(n+1) channel in the first touch area 1 is connected to the TX(n+1) channel in the second touch area 2. The RX(m+4) channel in the first touch area 1 is connected to the RX(m+4) channel in the second touch area 2, and the RX(m+5) channel in the first touch area 1 is connected to the RX(m+5) channel in the second touch area 2.

[0074] In the display panel, other touch channel areas except the above two groups of touch channels are third touch areas 3, and the touch channels in the third touch area 3 are coaxial, for example Figure 4As shown, the touch channels of the third touch area 3 include: TX(n+2), TX(n+3), TX(n+4), TX(n+5), RX(m+2), RX(m+3). In this part of the touch channels, each touch channel extends from one side of the display panel to the corresponding other side, and is connected by routing at the location where the routing area exists, and each touch channel corresponding to the number is coaxial.

[0075] It should be noted that, for a display panel having a third touch area 3, when the touch channels of the first touch area 1 and the touch channels of the second touch area 2 are connected one-to-one, in order to ensure that all touch channels of the entire display panel are connected one-to-one, the transmission lines can be connected by means of some channels of the third touch area 3, for example Figure 4 As shown, when the first touch area labeled 41 is connected to the channel in the second touch area labeled 42, the TX(n+6) in the area labeled 41 is connected to the transmission line, and the transmission line is first connected to the TX channel located directly below it (in the area where RX(m+2) and RX(m+3) are located, the TX channel located directly below TX(n+6) is also considered to be TX(n+6), and then a transmission line is connected to the TX channel located directly below it, and the transmission line is connected to the TX(n+6) channel in the area labeled 42 through the routing area. In this way, the length of the connected TX(n+6) channel is consistent with the length of the TX touch channel in the third touch area 3, which can ensure that the display channels of each area are connected one by one, thereby ensuring that the display effect of the display panel is not affected.

[0076] Optionally, the first touch area 1 and the second touch area 2 are symmetrical with respect to the center of the third touch area 3 .

[0077] In this embodiment, when the display panel is large in size and has a large number of touch channels, the touch effect is taken into consideration and combined with the user's operating habits. For example, in this case, the user generally holds the device to operate and touches a distance from the outer edge of the display panel to the middle. The middle area of ​​the display panel is generally not touched by multiple fingers at the same time (due to the limitation of human finger length, the user interface (UI) setting will not design the functional operations of two areas in the middle of the display panel). Therefore, when the number of touch channels is too large, the touch channels in the middle area can be appropriately not designed by area. In this case, an additional set of algorithms needs to be added when the software calculates the coordinates, namely, Figure 4 The upper left area, upper right area, lower left area, lower right area and middle area shown correspond to respective coordinate calculation methods.

[0078] Optionally, the size or position of the first touch area 1 and the second touch area 2 can be calculated according to the value of the user's finger. For example, the average length of the user's thumb is 5-8 cm. The maximum value of 8 cm can be used as the side length of the first touch area 1 and the second touch area 2 to determine the corresponding first touch area 1 or second touch area 2 at the four corners of the display panel.

[0079] The following example illustrates the sub-area design method of the touch channel in the display panel of the embodiment of the present application.

[0080] The touch channel design of traditional display panels is as follows: Figure 5 As shown, the touch channels are arranged in arrays along the x and y directions respectively. When multi-finger touch occurs simultaneously and the touch channels involved in coordinate calculation have the same channels in the x or y direction, that is, multi-finger touch occurs coaxially in the horizontal direction or vertical direction at the same time, the effective touch capacitance value at the corresponding position will be reduced, causing the touch position to shift.

[0081] In the embodiment of the present application, the touch channel is divided into a first touch area and a second touch area. It is assumed that the display panel is divided into an upper and lower half screen with the midpoint of the long side as the center; the driving channels on the left and right sides of the midpoint of the short side of the display panel are cross-designed, such as Figure 1 As shown, it is assumed that the upper left area is the first touch area, and the lower right area is the corresponding second touch area; the upper right area is another group of first touch areas, and the lower left area is another group of corresponding second touch areas. Referring to the serial number of the drive channel TX, in one group of touch areas, TX(n) of the first touch area is connected to TX(n) of the second touch area, and TX(n+1) of the first touch area is connected to TX(n+1) of the second touch area; in another group of touch areas, TX(n+2) of the first touch area is connected to TX(n+2) of the second touch area, and TX(n+3) of the first touch area is connected to TX(n+3) of the second touch area, so that the routing length of each TX channel can be guaranteed to be equal, that is, the impedance of each adjacent channel is equal, ensuring the uniformity of the touch signal.

[0082] Since the corresponding touch channels are located at different positions in different touch areas, when the touch coordinates are calculated by software, two sets of logic are used for the upper and lower half screens. Figure 1The upper half of the screen shown calculates the touch position according to the sorting position of TX(n+2), TX(n+3), TX(n), and TX(n+1); the lower half of the screen calculates the touch position according to the sorting position of TX(n), TX(n+1), TX(n+2), and TX(n+3), thereby ensuring the accuracy of the touch coordinates. This embodiment can solve the problem of insufficient touch accuracy when there are multiple coaxial touch fingers in the length direction of the display panel in weak grounding scenarios (especially in interfaces such as game operations that require high touch accuracy), thereby improving the user experience. If the RX channel is not designed in different areas, the RX channel maintains its original layout unchanged.

[0083] In addition, to ensure the touch routing of the touch area, the width of the routing area is required to be less than the first threshold, for example, less than 2.2 mm (based on the routing clearance design experience of mutual capacitance multi-point). Figure 6 The following is a schematic diagram of the pixel design of a certain model. Figure 6 Different shapes correspond to RGB pixels. Assuming that the width of this area is 332um, a total of 6 touch channels can be designed, corresponding to 6 touch lines. It can be calculated that the estimated width of each effective touch line is 55.4um. Perform spatial calculation: 2.2mm / 55.4um≈39, that is, a routing area width of 2.2mm can be set to approximately 39 lines. Based on the conventional display panel size, the number of TX channels is generally ≤20 (much less than 39), which can meet actual application requirements. According to the maximum 20 TX channels, the required routing width d≈1.1mm. It should be noted that in actual design, under the premise of meeting RC Loading, the minimum d value can be designed as much as possible to reduce the impact of the gap on the touch effect.

[0084] Based on the display panel of the embodiment of the present application, in actual application, it is assumed that the user Figure 7 Point A and point B are touched at the same time. Because the TX channels of point A and point B are different, there will be no weak grounding effect. The physical coordinates of the touch are highly matched with the coordinates calculated by the software, which can improve the touch accuracy. It should be noted that when using this solution to calculate the touch coordinates, due to the difference in the TX channel distribution of the upper and lower halves of the display panel, the software needs to distinguish the upper and lower halves of the screen and calculate them separately when calculating the coordinates.

[0085] For the touch channel design of this application, the scenario where there may be a weak grounding effect is described. Take two-finger touch as an example. Figure 8As shown, the touch deviation problem caused by the weak grounding effect will occur only when point A touches the leftmost side of the display panel in the width direction, and point B touches the channel to the right of the width midline. At this time, the horizontal distance between point A and point B accounts for half of the panel. Assuming that the short side of the electronic device is 60mm long, point A and point B are about 30mm apart. Combined with actual applications, the probability of the user's two fingers acting on these two positions at the same time when operating the device is very small. For example: For open-ended games, such as games with customizable operating interfaces, this embodiment may occur due to the influence of human hand operating habits. Figure 8 The scenario shown is less of a situation.

[0086] This embodiment performs a zone-based design for the TX channels arranged in the length direction of the display panel, which can improve the touch accuracy during coaxial touch in the length direction and improve the touch experience.

[0087] Optionally, the RX channels arranged in the width direction of the display panel may be designed in different regions, for example Figure 2 As shown in the figure, considering the actual scene requirements, for devices with larger display screens, such as a 7.91-inch large folding display screen, the long and short sides are close in size. In actual user operation, there is a high probability of coaxial touch on both the long and short sides. Figure 2 The figure shows a schematic diagram of a solution to the problem. In this case, the TX channel of the first touch area 1 is connected to the TX channel of the second touch area 2 correspondingly, and the RX channel of the first touch area 1 is connected to the RX channel of the second touch area 2 correspondingly.

[0088] Assume that the upper left area is the first touch area, and the lower right area is the corresponding second touch area; the upper right area is another set of first touch areas, and the lower left area is another set of corresponding second touch areas. Figure 1 The arrangement is as shown, which will not be elaborated here. Only the RX channel is explained here: referring to the serial number of RX, in one group of touch areas, RX(m) of the first touch area is connected to RX(m) of the second touch area, RX(m+1) of the first touch area is connected to RX(m+1) of the second touch area, and RX(m+2) of the first touch area is connected to RX(m+2) of the second touch area. In another group of touch areas, RX(m+3) of the first touch area is connected to RX(m+3) of the second touch area, RX(m+4) of the first touch area is connected to RX(m+4) of the second touch area, and RX(m+5) of the first touch area is connected to RX(m+5) of the second touch area. In this way, the touch accuracy of the long and short sides of the display panel is improved during coaxial multi-finger touch, thereby improving the touch experience.

[0089] Optionally, for a larger touch display panel, the number of touch channels may exceed the aforementioned 39 channels. Considering the touch effect and user operation habits, the center area of ​​the display panel will generally not be touched by two fingers at the same time (due to the length limit of human fingers, the UI setting will not design the functional operations of the two areas in the middle of the display screen), so the touch channels in the middle of the display panel can be designed without dividing the areas. In this case, the software needs to add an additional set of algorithms when calculating the coordinates. The touch channels can be divided as follows: Figure 4 As shown, the touch channel is divided into five parts, the upper left area, the upper right area, the lower left area, the lower right area and the middle area, which correspond to their own coordinate calculation methods respectively.

[0090] This embodiment can improve the touch accuracy of the long sides and short sides of the display panel except the middle area during coaxial multi-finger touch control, thereby improving the touch experience.

[0091] In the embodiment of the present application, the touch channel of the display panel is designed in different areas, and the first touch area and the second touch area are symmetrically distributed. Since the touch channel of the first touch area 1 and the touch channel of the corresponding second touch area 2 are not coaxial, the user is less likely to have a weak grounding effect when operating the screen with multiple fingers, and the physical coordinates of the touch are more matched with the coordinates calculated by the software, which can improve the touch accuracy.

[0092] like Fig. 9 As shown, the embodiment of the present application further provides a touch control method, which is applied to the above electronic device, including:

[0093] Step 901: when a touch signal is detected, obtaining a touch channel where the touch signal is detected;

[0094] Step 902: determining the user's touch position according to the touch area where the touch channel is located;

[0095] Step 903: Execute a touch operation corresponding to the touch position.

[0096] In this embodiment, when the user operates the electronic device, multiple fingers may be used to operate simultaneously. The electronic device detects the touch signal of the multiple fingers operating simultaneously, and can determine the user's touch position according to the touch channel that detects the touch signal. For example, the user operates two fingers at the same time. Figure 7At point A and point B shown in the figure, the TX(n+2) channel and TX(n) channel of the display panel detect touch signals. The TX(n+2) channel is located in the first touch area, which belongs to the upper half of the display panel. The electronic device calculates the touch coordinates of point A according to the channel arrangement of TX(n+2), TX(n+3), TX(n), and TX(n+1). The TX(n) channel is located in the second touch area of ​​another group, which belongs to the lower half of the display panel. The electronic device calculates the touch coordinates of point B according to the channel arrangement of TX(n), TX(n+1), TX(n+2), and TX(n+3).

[0097] In this embodiment, when the electronic device detects a touch signal operated by a user, it determines the user's touch position according to the touch channel corresponding to the touch signal, thereby performing the corresponding operation. Since the touch channel is designed in different areas, the arrangement of the touch channels in different areas may be different, so the touch positions of different touch areas need to be calculated separately.

[0098] The present application also provides an electronic device, including a housing and the above-mentioned display panel, wherein the display panel is fixed to the housing. Other components of the electronic device of the present application, such as the housing, buttons, etc., and operations are known to those skilled in the art and will not be described in detail here.

[0099] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0100] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0101] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, a disk, or an optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present application.

Claims

1. A display panel, characterized in that: include: A first touch area and a second touch area spaced apart from each other, wherein the first touch area and the second touch area are symmetrically distributed; The first touch area and the second touch area respectively include a plurality of touch channels extending along a first direction, wherein the plurality of touch channels of the first touch area are connected to the plurality of touch channels of the second touch area in a one-to-one correspondence, and the touch channels of the first touch area and the touch channels correspondingly connected to the second touch area are parallel to each other and not coaxial.

2. The display panel according to claim 1, characterized in that: The display panel further includes: a third touch area, the third touch area being located between the first touch area and the second touch area; The touch channel included in the third touch area extends from a first edge to a second edge of the display panel, and the first edge and the second edge are two edges opposite to each other in the first direction.

3. The display panel according to claim 2, characterized in that: The first touch area and the second touch area are symmetrical with respect to a center of the third touch area.

4. The display panel according to claim 1, characterized in that: The touch channels included in the first touch area and the correspondingly connected touch channels in the second touch area have a first distance in the horizontal direction, and each group of correspondingly connected touch channels has the same first distance.

5. The display panel according to claim 1, characterized in that: The first touch area includes at least two sub-areas, and the second touch area includes at least two sub-areas; The touch channels included in the sub-areas of the first touch area and the touch channels included in the sub-areas of the second touch area that are symmetrically distributed form a group of touch channels; In the group of touch control channels, the same touch control channels are connected through transmission lines.

6. The display panel according to claim 5, characterized in that: The display panel further includes: a wiring area, the wiring area being located between the first touch control area and the second touch control area; In each group of touch channels, the touch channels located in the first touch area are connected to the touch channels located in the second touch area through the wiring area.

7. The display panel according to claim 6, characterized in that: The width of the routing area is determined according to the width of the transmission line and the number of touch channels.

8. The display panel according to claim 1, characterized in that: The touch control channel includes: a driving channel and / or a receiving channel; The driving channels are arranged in sequence along a first direction of the display panel; the receiving channels are arranged in sequence along a second direction of the display panel; or, The receiving channels are arranged in sequence along a first direction of the display panel, and the driving channels are arranged in sequence along a second direction of the display panel; The first direction is perpendicular to the second direction.

9. An electronic device, characterized in that: The invention comprises a housing and the display panel according to any one of claims 1 to 8, wherein the display panel is fixed to the housing.

10. A touch control method, characterized in that: The electronic device as claimed in claim 9 comprises: When a touch signal is detected, obtaining a touch channel that detects the touch signal; Determining a touch position of a user according to a touch area where the touch channel is located; A touch operation corresponding to the touch position is performed.

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