CN110147180B - Touch display device, touch display method, display and terminal - Google Patents
Touch display device, touch display method, display and terminal Download PDFInfo
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- CN110147180B CN110147180B CN201910441639.6A CN201910441639A CN110147180B CN 110147180 B CN110147180 B CN 110147180B CN 201910441639 A CN201910441639 A CN 201910441639A CN 110147180 B CN110147180 B CN 110147180B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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Abstract
The invention provides a touch display device, a touch display method, a display and a terminal, wherein the touch display device comprises a display panel, a touch panel and a non-touch panel which are arranged above the display panel, and a touch controller, wherein the touch panel forms a touch area, and the touch area comprises a coordinate non-offset area and a coordinate offset area surrounding the coordinate non-offset area; the non-touch panel surrounds the touch panel to form a non-touch area; the size of the touch panel is smaller than that of the display panel, the centers of the display area, the coordinate non-offset area and the touch area corresponding to the display panel are overlapped, and the display area, the coordinate non-offset area and the touch area are identical in shape but different in size. The technical scheme of the invention can reduce the cost of the touch screen, particularly the large-scale touch screen, and facilitate the human-computer interaction, compared with the full-scale touch screen, the full-scale touch screen is beneficial to realizing multi-point touch control and the like, and can also effectively solve the problems that the full-scale touch screen is easy to damage in public occasions and the like.
Description
Technical Field
The invention relates to the technical field of touch screens, in particular to a touch display device, a touch display method, a display and a terminal.
Background
As human-computer interaction is more and more common in various fields, however, the cost of the touch screen mainly used for human-computer interaction is greatly influenced by the size, for example, a 7-inch touch screen is dozens of yuan, while a 32-inch touch screen needs about three-four-hundred yuan, which is especially difficult to control for some public occasions needing large-scale touch screens. And, for some touch screens of larger size, the control flexibility is greatly reduced.
In addition, the large-sized touch screen has a small thickness variation, although the size is increased much compared to the small-sized touch screen. The human-computer interaction conditions in public places are often severe, and the large-size touch screen can be damaged due to the possibility of being knocked and damaged by people, so that the interaction experience of a user is influenced, and the large maintenance cost is also increased for a market.
Disclosure of Invention
In view of the above, an object of the present invention is to overcome the deficiencies in the prior art, and provide a touch display device, a touch display method, a display and a terminal.
An embodiment of the present invention provides a touch display device, including: the touch control device comprises a display panel, a touch control panel and a non-touch control panel which are arranged above the display panel, and a touch controller, wherein the touch control panel forms a touch control area which comprises a coordinate non-offset area and a coordinate offset area surrounding the coordinate non-offset area; the non-touch panel surrounds the touch panel to form a non-touch area; the size of the touch panel is smaller than that of the display panel, and the centers of the display area, the coordinate non-offset area and the touch area corresponding to the display panel are superposed with each other and have the same shape but different sizes;
the touch controller is used for performing coordinate direct mapping on the touch signal in the coordinate non-offset area and performing coordinate offset mapping on the touch signal in the coordinate offset area when the touch area detects at least one touch signal, so as to acquire actual display control coordinates of each touch signal corresponding to the display panel.
In the touch display device, if the coordinate of the touch signal located in the coordinate offset area is a, the center coordinate of the display area is O, the coordinate of the boundary intersection point between the straight line L where the two points A, O are located and the point a near the coordinate non-offset area is B, the coordinate of the boundary intersection point between the straight line L and the point a near the coordinate offset area is C, the coordinate of the boundary intersection point between the straight line L and the point a near the non-touch area is E, and the actual display control coordinate obtained by the touch controller performing coordinate offset mapping on the point a according to a linear offset formula is F, the linear offset formula is:
wherein d is |AB| The distance between the two points A and B; d |BC| The distance between the two points B and C; d |FB| The distance between the two points F and B; d |BE| The distance between B and E is shown.
In the above touch display device, further, an edge of the non-touch panel coincides with an edge of the display panel.
In the above touch display device, the coordinate non-offset area, the touch area and the display area are all rectangular or circular.
In the above touch display device, the non-touch panel is made of a resin material.
In the above touch display device, the touch panel is a surface capacitive touch panel or a projected capacitive touch panel.
In the above touch display device, further, the touch display device further includes: and the display controller is used for controlling a display control at a position corresponding to the actual display control coordinate to respond according to the actual display control coordinate acquired from the touch controller.
Another embodiment of the present invention provides a touch display method applied to a touch display device, where the touch display device includes a display panel, a touch panel and a non-touch panel disposed above the display panel, and a touch controller, the touch panel forms a touch-enabled area, and the touch-enabled area includes a coordinate non-offset area and a coordinate offset area surrounding the coordinate non-offset area; the non-touch panel surrounds the touch panel to form a non-touch area; wherein the size of the touch panel is smaller than that of the display panel, and the centers of the display area, the coordinate non-offset area and the touchable area corresponding to the display panel coincide with each other and are the same in shape but different in size from each other, the method comprising:
when the touch-controllable area detects at least one touch-control signal, the touch controller performs coordinate direct mapping on the touch-control signal located in the coordinate non-offset area and performs coordinate offset mapping on the touch-control signal located in the coordinate offset area, so as to obtain actual display control coordinates of each touch-control signal corresponding to the display panel.
Another embodiment of the invention provides a display including the touch display device.
Another embodiment of the invention provides a terminal including the touch display device.
The embodiment of the invention has the following advantages:
according to the technical scheme of the invention, the cost of the touch screen can be reduced, particularly the large-scale touch screen, the man-machine interaction is more convenient, and compared with a full-size touch screen, the full-size touch screen is beneficial to realizing multi-point touch control and the like, and the problems that the full-size touch screen is easy to damage in public occasions and the like can be effectively solved.
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible and comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a touch display device in the prior art;
fig. 2 is a schematic structural diagram of a touch display device according to an embodiment of the invention;
fig. 3 is a schematic application diagram of a touch display device according to an embodiment of the invention;
fig. 4 is a schematic diagram illustrating a touch panel structure of a touch display device according to an embodiment of the invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention and are not to be construed as limiting the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the templates herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Fig. 1 shows a schematic structural diagram of a conventional touch display screen. As shown in fig. 1, in a conventional touch display screen, in order to implement touch control on the whole display screen, it is often adopted to completely attach a display panel 1 ' and a touch panel 2 ' having the same size, so when it is necessary to control which position on the touch display screen is to be controlled, the corresponding position on the touch panel 2 ' is directly touched, thereby implementing direct mapping of touch point coordinates. However, although such touch display screens can realize full-scale touch control function, the cost thereof is often high, especially for large touch screens in some public places. And once the large touch screen in the public places is damaged, the maintenance cost is high, and the like.
Therefore, the present invention provides a touch display device, which can realize a full-scale touch function and reduce the cost of a touch screen, wherein a touch panel of the touch display device is smaller than a display panel. The touch display device is described in detail below.
Example 1
Referring to fig. 2, the present embodiment provides a touch display device, in which a non-full-size touch panel structure with a size different from that of a display panel is adopted to implement a touch function of a whole display screen, so that not only can the cost be reduced, but also human-computer interaction experience can be improved. As shown in fig. 2, the touch display device includes a display panel 1, a touch panel 2, a touch controller connected to the touch panel 2, and a non-touch panel 3. The size of the touch panel 2 is smaller than that of the display panel 1, the touch panel 2 and the non-touch panel 3 are both disposed above the display panel 1, the touch panel 2 forms a touch area, and the non-touch panel 3 surrounds the touch panel 2 to form a non-touch area. The touch panel 2 is used for being attached to the display panel 1 to form a display screen with a touch function.
Further, the touchable area is divided into a coordinate non-offset area and a coordinate offset area surrounding the coordinate non-offset area, wherein: the centers of the display area, the coordinate non-offset area and the touchable area corresponding to the display panel 1 are overlapped with each other and have the same shape but different sizes. It should be understood that the same shape but different sizes here means that the display area, the coordinate non-offset area and the touchable area can be scaled in size between each other.
Exemplarily, the touch panel 2 is disposed at the right center of the display panel 1, and the size of the touch-enabled area is proportional to the size of the display area; the divided coordinate non-offset area is also located at the right center of the touch panel 2, and the size of the coordinate non-offset area is also proportional to the size of the touch area. For example, if the three regions are all rectangular, the above-mentioned proportional sizes may mean that the length-width ratios of the regions are all equal, i.e. the diagonals of the regions coincide with each other; if the regions are circular, the above-mentioned proportional dimensions may refer to proportional diameters or radii of the regions, and the like. It is understood that the shapes of the three regions are not limited to rectangles, but may be other shapes, such as triangles, other polygons, and the like.
The coordinate non-offset area refers to a region in which the coordinates of the touch signal in the area can be directly mapped and obtained, that is, the coordinates of the touch signal in the coordinate non-offset area on the touch panel 2 are the actual display control coordinates on the display panel 1. The coordinate offset area refers to that the coordinates of the touch signal in all areas on the touch panel 2 except the area without coordinate offset need to be subjected to offset mapping, that is, coordinate conversion is required to obtain the actual display control coordinates of the touch signal on the display panel 1, and specifically, the coordinate offset area can be obtained by a coordinate linear offset formula.
In this embodiment, the touch controller is mainly configured to detect a touch signal on the touch panel 2 and obtain an actual display control coordinate of the touch signal corresponding to the display panel 1, and further control a display control at a corresponding position of the display panel 1 to respond according to the actual display control coordinate, such as a display cursor, option determination, and the like.
For example, when the touch-controllable area detects a touch signal, the touch controller may determine the coordinate of the touch signal on the touch panel 2, and determine whether the coordinate is located in the coordinate non-offset area, so as to perform different coordinate calculation processes according to different areas. For example, for a touch signal located in the coordinate non-offset area, coordinate direct mapping is performed to obtain an actual display control coordinate corresponding to the display panel 1; and for the touch signal located in the coordinate offset area, coordinate offset mapping is performed to obtain an actual display control coordinate corresponding to the display panel 1.
Optionally, the number of the touch signals may be multiple. For each touch signal, the touch controller can determine the coordinates of each touch signal and obtain the actual display control coordinates of each touch signal. It can be understood that, for a large touch display screen, if the touch display device of the embodiment is adopted, a user can conveniently realize multi-point touch on a non-full-size touch panel, so that human-computer interaction experience can be improved, and the like.
The structure and the operation principle of the touch display device are illustrated below.
As shown in fig. 2, if the display area corresponding to the display panel in the touch display device includes a rectangular area St1, an annular area St2 and an Sp, where the coordinate non-offset area is a rectangular area St1, the coordinate offset area is an annular area St2, and the non-touch area is an annular area Sp, the shapes of the coordinate non-offset area St1, the touchable area St1+ St2 and the display area St1+ St2+ Sp are all rectangles, and the centers of the rectangles and the display areas are all coincident with the point O. Meanwhile, the aspect ratios of the three regions are all equal, that is, the ratio of the length to the width of the coordinate non-offset region St1 is equal to the ratio of the length to the width of the touchable region St1+ St2, and is also equal to the ratio of the length to the width of the display region St1+ St2+ Sp. Thus, the three regions can be scaled differently from each other by maintaining the aspect ratio.
Then, the coordinates of the touch signal in the coordinate non-offset region St1 on the touch panel 2 are the actual display control coordinates of the region of the display panel 1 directly below the coordinate non-offset region St 1. On the other hand, for the touch signal in the coordinate offset region St2, coordinate conversion is required to obtain the actual display control coordinates of the region of the display panel 1 directly below the coordinate offset region St2 and the non-touch region Sp.
For example, as shown in fig. 3, if a touch signal is detected in the coordinate shift region St2, the coordinate on the touch panel is a, and the center coordinate of the display region is O, the straight line L defined by A, O two points will have corresponding boundary intersections with the coordinate non-shift region St1, the coordinate shift region St2 and the non-touch region Sp, as shown in fig. 3. The coordinate of the intersection point of the straight line L and the boundary of the rectangular region St1 near the point a is denoted as B, the coordinate of the intersection point of the straight line L and the boundary of the annular region St2 near the point a is denoted as C, and the coordinate of the intersection point of the straight line L and the boundary of the annular region Sp near the point a is denoted as E, so that the touch controller performs coordinate offset mapping calculation on the point a according to a linear offset formula to obtain an actual display control coordinate F, where the linear offset formula specifically is as follows:
wherein d is |AB| The distance between the two points A and B; d |BC| The distance between the two points B and C; d |FB| The distance between the two points F and B; d |BE| The distance between B and E is shown. For example, the coordinate of point A is (x) 1 ，y 1 ) And the coordinate of the point B is (x) 2 ，y 2 ) Then, then
It can be understood that, by implementing point-to-point accurate mapping control on the coordinate non-offset area in the touch panel 2 and also implementing coordinate offset mapping on the non-touch area and the coordinate offset area, full-screen control of the touch display component using the non-full-size touch panel is implemented, which greatly saves the cost of the touch panel, especially for large-scale touch screens in some public places, for example, the touch panel 2 of the display panel 1 with the size of 1/3 may be used. In addition, because full-screen touch is not needed, only the concentrated region touch is needed in the touch region, the multi-point touch can be conveniently realized by a user, the probability of mistaken touch can be reduced, and the human-computer interaction experience is further improved. If the large touch screen is damaged, maintenance cost can be reduced, and the like.
Further alternatively, the edge of the non-touch panel 3 may coincide with the edge of the display panel 1, i.e. the sum of the size of the non-touch panel 3 and the size of the touch panel 2 is equal to the size of the display panel 1. In this embodiment, the non-touch panel 3 may be filled with a filler with good insulating and light guiding properties, so as to meet the requirements of the touch display screen, such as integrity and uniform thickness. The filler may be made of resin, such as epoxy resin or unsaturated resin.
In this embodiment, the size ratio of the coordinate non-offset area to the touch-controllable area may be selected according to actual requirements, and preferably, the size ratio may be 0.2 to 0.8. Exemplarily, the area of the touchable region is 10mm if it is rectangular 2 Then the area of the coordinate non-offset area can be 2mm 2 ～8mm 2 Can be selected arbitrarily.
In this embodiment, the size ratio of the touch-controllable area to the display area may be selected according to actual requirements, and preferably, the size ratio may be 0.2 to 0.8. Exemplarily, the area of the display region if rectangular is 100mm 2 The area of the touch area can be 20mm 2 ～80mm 2 Can be selected arbitrarily.
In this embodiment, the touch panel 2 may be a surface capacitive touch panel or a projected capacitive touch panel. Exemplarily, in the case of a surface capacitive touch panel, as shown in fig. 4, there is one electrode at each of four corners of the touch panel 2, which is UR, UL, LR, and LL, and each electrode is connected to the touch controller, and then the touch controller will first establish a uniform electric field on the touch panel 2. Therefore, when a finger touches the screen, the current emitted by the four-side electrodes flows to the touch point, and the intensity of the current is proportional to the distance from the finger to the electrodes. At this time, the touch controller respectively senses and reads the current amounts on the four electrodes, and calculates the XY coordinates of the touch point according to the following formula.
Wherein i UL 、i UR 、i LR The current amounts sensed at the electrodes UL, UR and LR of the touch point, L1 and L2 are the distances from the touch point to the top corner electrodes UL and UR at the upper boundary, and L3 and L4 are the distances from the touch point to the top corner electrodes UR and LR at the right boundary. Therefore, the touch point can be located according to the distance between the top corner electrodes.
Certainly, the touch panel may also adopt a projected capacitive touch panel, and the approach or touch of a finger and the like is sensed by forming a plurality of horizontal and vertical electrodes and establishing an axis coordinate type sensing unit matrix, and specifically, the coordinate positioning of a touch point can be realized according to the principle of a projected capacitive touch screen.
Further, the touch display component further comprises a display controller, wherein the display controller is connected with the display panel 1 and the touch controller and is used for controlling a display control at a position corresponding to the actual display control coordinate to respond according to the actual display control coordinate acquired from the touch controller.
Example 2
The present embodiment provides a touch display method, which can be applied to the touch display device of embodiment 1. Referring to fig. 2 and 3, the touch display device includes a display panel 1, a touch panel 2, a touch controller connected to the touch panel 2, and a non-touch panel 3, where the touch panel 2 forms a touch-enabled area, and the touch-enabled area includes a coordinate non-offset area and a coordinate offset area surrounding the coordinate non-offset area; the non-touch panel 3 surrounds the touch panel 2 to form a non-touch area; wherein the size of the touch panel 2 is smaller than the size of the display panel 1, the centers of the display area, the coordinate non-offset area and the touchable area corresponding to the display panel 1 coincide with each other and are the same in shape but different in size from each other, and the method comprises:
when the touch-controllable area detects at least one touch-control signal, the touch controller performs coordinate direct mapping on the touch-control signal located in the coordinate non-offset area and performs coordinate offset mapping on the touch-control signal located in the coordinate offset area, so as to obtain actual display control coordinates of each touch-control signal corresponding to the display panel.
It is understood that the method in the present embodiment corresponds to the touch display device in embodiment 1, and the options of the touch display device in embodiment 1 are also applicable to the present embodiment, so detailed descriptions thereof are omitted here.
Another embodiment of the present invention further provides a display, which includes the touch display device in embodiment 1. For example, the display may be a separately marketable LED display screen, LCD display screen, or OLED display screen, among others.
Another embodiment of the present invention further provides a terminal, which includes the touch display device in embodiment 1. Illustratively, the terminal may be a monitoring device, a gaming device, an advertising device, and the like.
In all examples shown and described herein, any particular value should be construed as exemplary only and not as a limitation, and thus other examples of example embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.
The above examples are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (9)
1. A touch display device, comprising: the touch control device comprises a display panel, a touch control panel and a non-touch control panel which are arranged above the display panel, and a touch controller, wherein the touch control panel forms a touch control area which comprises a coordinate non-offset area and a coordinate offset area surrounding the coordinate non-offset area; the non-touch panel surrounds the touch panel to form a non-touch area; the size of the touch panel is smaller than that of the display panel, and the centers of the display area, the coordinate non-offset area and the touch area corresponding to the display panel are superposed with each other and have the same shape but different sizes;
the touch controller is used for performing coordinate direct mapping on the touch signal in the coordinate non-offset area and performing coordinate offset mapping on the touch signal in the coordinate offset area when the touch area detects at least one touch signal so as to acquire actual display control coordinates of each touch signal corresponding to the display panel;
if the coordinate of the touch signal located in the coordinate offset region is a, the center coordinate of the display region is O, the coordinate of a boundary intersection point between a straight line L where the two points A, O are located and a point a near the coordinate non-offset region is B, the coordinate of a boundary intersection point between the straight line L and a point a near the coordinate offset region is C, the coordinate of a boundary intersection point between the straight line L and a point a near the non-touch region is E, and an actual display control coordinate obtained by the touch controller performing coordinate offset mapping on the point a according to a linear offset formula is F, the linear offset formula is:
wherein d is |AB| The distance between the two points A and B is defined as the distance between the two points A and B; d |BC| The distance between the two points B and C; d |FB| The distance between the two points F and B; d |BE| The distance between B and E is shown.
2. The touch display device of claim 1, wherein an edge of the non-touch panel coincides with an edge of the display panel.
3. The touch display device of claim 1, wherein the coordinate non-offset area, the touchable area, and the display area are all rectangular or circular.
4. The touch display device according to claim 1, wherein the non-touch panel is made of a resin material.
5. The touch display device of claim 1, wherein the touch panel is a surface capacitive touch panel or a projected capacitive touch panel.
6. The touch display device of claim 1, further comprising: and the display controller is used for controlling a display control at a position corresponding to the actual display control coordinate to respond according to the actual display control coordinate acquired from the touch controller.
7. A touch display method is applied to a touch display device, the touch display device comprises a display panel, a touch panel and a non-touch panel which are arranged above the display panel, and a touch controller, wherein the touch panel forms a touch area, and the touch area comprises a coordinate non-offset area and a coordinate offset area surrounding the coordinate non-offset area; the non-touch panel surrounds the touch panel to form a non-touch area; wherein the size of the touch panel is smaller than that of the display panel, and the centers of the display area, the coordinate non-offset area and the touchable area corresponding to the display panel coincide with each other and are the same in shape but different in size from each other, the method comprising:
when the touch-controllable area detects at least one touch signal, the touch controller performs coordinate direct mapping on the touch signal in the coordinate non-offset area and performs coordinate offset mapping on the touch signal in the coordinate offset area to acquire actual display control coordinates of each touch signal corresponding to the display panel;
if the coordinate of the touch signal located in the coordinate offset region is a, the center coordinate of the display region is O, the coordinate of a boundary intersection point between a straight line L where the two points A, O are located and a point a near the coordinate non-offset region is B, the coordinate of a boundary intersection point between the straight line L and a point a near the coordinate offset region is C, the coordinate of a boundary intersection point between the straight line L and a point a near the non-touch region is E, and an actual display control coordinate obtained by the touch controller performing coordinate offset mapping on the point a according to a linear offset formula is F, the linear offset formula is:
wherein d is |AB| The distance between the two points A and B; d is a radical of |BC| The distance between the two points B and C; d |FB| The distance between the two points F and B; d |BE| The distance between B and E is shown.
8. A display comprising the touch display device of any one of claims 1-6.
9. A terminal characterized by comprising the touch display device according to any one of claims 1-6.
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