CN114356147A - Touch display panel and correction method thereof - Google Patents
Touch display panel and correction method thereof Download PDFInfo
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- CN114356147A CN114356147A CN202210006777.3A CN202210006777A CN114356147A CN 114356147 A CN114356147 A CN 114356147A CN 202210006777 A CN202210006777 A CN 202210006777A CN 114356147 A CN114356147 A CN 114356147A
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- 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
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
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- 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
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- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
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- 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
- G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
Abstract
The disclosure relates to a touch display panel and a correction method thereof, and relates to the technical field of touch. The touch display panel comprises a touch substrate, the touch substrate comprises a bendable bending area and flat areas separated from two sides of the bending area, and an included angle of the flat areas on the two sides of the bending area is defined as an appointed included angle; the bending area and the leveling area are provided with a plurality of sensing units; the correction method comprises the following steps: in the state of not performing touch control, executing the following steps: making the designated included angle be 180 degrees, and acquiring induction parameters of the induction units in the bending area as target induction parameters; determining compensation parameters of the induction units of the bending area at any angle unequal to 180 degrees at the specified included angle according to the induction parameters and the target induction parameters of the induction units of the bending area at the specified included angle under a plurality of specified angles; and when the specified included angle is at any angle not equal to 180 degrees, enabling the deviation between the sensing parameter of the touch unit in the bending area and the target sensing parameter to be within a specified range according to the compensation parameter.
Description
Technical Field
The disclosure relates to the field of touch technologies, and in particular, to a touch display panel and a correction method of the touch display panel.
Background
With the development of display technologies, the appearance of mobile electronic devices has changed greatly, and a bendable touch display panel is concerned by switching the form through bending. However, in the touch display panel in the bent state, when no touch is performed in the bent region, a problem of false touch alarm may occur.
It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present disclosure, and thus may include information that does not constitute prior art known to those of ordinary skill in the art.
Disclosure of Invention
The disclosure is directed to overcome the above-mentioned deficiencies in the prior art, and provides a touch display panel and a method for correcting the touch display panel, which can avoid a touch false alarm in a bending region.
According to one aspect of the present disclosure, a method for correcting a touch display panel is provided, where the touch display panel includes a touch substrate, the touch substrate includes a bendable bending region and flat regions separated from two sides of the bending region, and an included angle between the flat regions on two sides of the bending region is defined as a designated included angle; the bending area and the leveling area are provided with a plurality of induction units;
the correction method comprises the following steps:
in the state of not performing touch control, executing the following steps:
enabling the specified included angle to be 180 degrees, and acquiring induction parameters of the induction units in the bending area as target induction parameters;
determining compensation parameters of the induction units of the bending area when the appointed included angle is at any angle not equal to 180 degrees according to the induction parameters of the induction units of the bending area under a plurality of appointed included angles and the target induction parameters;
and when the specified included angle is at any angle not equal to 180 degrees, enabling the deviation between the sensing parameter of the touch unit of the bending area and the target sensing parameter to be within a specified range according to the compensation parameter.
In an exemplary embodiment of the present disclosure, a compensation parameter of an induction unit of the bending area at any angle unequal to 180 ° is determined according to the induction parameter of the induction unit of the bending area at a plurality of specified angles of the specified included angle and the target induction parameter; the method comprises the following steps:
enabling the designated included angles to be at a plurality of designated angles respectively, and acquiring induction parameters of induction units of the bending area under each designated angle respectively to obtain basic induction parameters;
and determining compensation parameters of the induction units of the bending area when the specified included angle is at any angle unequal to 180 degrees according to the basic induction parameters and the corresponding specified angle.
In an exemplary embodiment of the present disclosure, according to the basic sensing parameter and the corresponding designated angle thereof, determining a compensation parameter of the sensing unit of the bending area at any angle unequal to 180 ° of the designated included angle; the method comprises the following steps:
establishing a functional relation between the induction parameters and the specified included angle according to the basic induction parameters and the specified angle corresponding to the basic induction parameters;
and determining compensation parameters of the induction units of the bending area when the specified included angle is at any angle unequal to 180 degrees according to the functional relation and the target induction parameters.
In an exemplary embodiment of the present disclosure, a compensation parameter of the sensing unit of the bending region at any angle unequal to 180 ° of the specified included angle is determined; the method comprises the following steps:
determining a compensation parameter corresponding to each appointed angle according to the deviation between the reference induction parameter corresponding to each appointed angle and the target induction parameter;
dividing the angle of the bending area which can be bent into a plurality of continuous included angle intervals, wherein 180 degrees is positioned outside each included angle interval; any compensation parameter corresponding to an angle not equal to 180 degrees is a compensation parameter corresponding to a specified angle included in an included angle interval in which the angle is located.
In an exemplary embodiment of the present disclosure, when the designated included angle is at any angle not equal to 180 °, the deviation between the sensing parameter of the touch unit of the bending area and the target sensing parameter is within a designated range according to the compensation parameter; the method comprises the following steps:
determining the angle of the specified included angle, and determining the included angle interval in which the angle of the specified included angle is located;
acquiring compensation parameters corresponding to the included angle intervals;
and compensating the induction parameters of the induction units of the bending area according to the compensation parameters, so that the deviation between the induction parameters of the touch units of the bending area and the target induction parameters is within a specified range.
In an exemplary embodiment of the present disclosure, the deviation between the sensing parameter of the touch unit of the bending area and the target sensing parameter is within a specified range according to the compensation parameter; the method comprises the following steps:
acquiring induction parameters of the induction units of the bending area to obtain reference induction parameters;
determining an included angle interval corresponding to the reference induction parameter according to the reference induction parameter and the functional relation;
acquiring compensation parameters corresponding to the included angle intervals;
and compensating the induction parameters of the induction units of the bending area according to the compensation parameters, so that the deviation between the induction parameters of the touch units of the bending area and the target induction parameters is within a specified range.
In an exemplary embodiment of the present disclosure, the compensation parameter is a difference between the target sensing parameter and a reference sensing parameter;
compensating the induction parameters of the induction units of the bending area according to the compensation parameters; the method comprises the following steps:
and calculating the sum of the induction parameters of the induction units of the bending area and the compensation parameters.
According to an aspect of the present disclosure, there is provided a touch display panel including:
the touch display substrate comprises a bendable bending area and flat areas separated from two sides of the bending area, and the included angle of the flat areas on the two sides of the bending area is a designated included angle; the bending area and the leveling area are provided with a plurality of induction units;
and the driving device is connected with the touch display substrate and is used for executing any one correction method.
In an exemplary embodiment of the present disclosure, the touch display substrate includes:
a display substrate;
the touch layer is arranged on one side of the display substrate, a gap extending along the column direction is formed in the touch layer, so that the touch layer is divided into two touch parts distributed at intervals along the row direction, the gap is located in the bending area, partial areas of the touch parts are located in the bending area, and partial areas of the touch parts are located in the leveling area; the sensing unit is located at the touch part.
In an exemplary embodiment of the present disclosure, the bending region has a plurality of rows of the sensing units, and is symmetrically distributed on two sides of the gap.
In an exemplary embodiment of the present disclosure, the compensation parameters of the sensing units in the same column are the same.
In an exemplary embodiment of the disclosure, a plurality of rows of the sensing units are disposed on the same side of the gap, and sensing parameters of the sensing units in different rows on the same side of the gap in the bending region are different.
In an exemplary embodiment of the present disclosure, the touch display panel further includes:
and the angle detection device is arranged on the touch display substrate and used for detecting the angle of the specified included angle and sending the angle to the driving device.
According to the touch display panel and the correction method thereof, the display panel can be corrected in a non-touch state, so that the problem of touch false alarm in a bending area is avoided. Specifically, in a non-touch state, the sensing parameters of the sensing units in the bending area with an appointed included angle of 180 degrees can be used as target sensing parameters, at the moment, the leveling area is arranged in a coplanar manner, and the sensing parameters of the sensing units in the bending area and the leveling area are consistent; the compensation parameters of the induction units in the bending area of the appointed included angle at any angle unequal to 180 degrees can be determined according to the induction parameters of the induction units of the appointed included angle at a plurality of appointed angles; and compensating the induction parameters of the induction unit after the bending of the bending area according to the compensation parameters, thereby making up the problem of false touch alarm caused by the change of the induction parameters of the induction unit due to the bending of the bending area.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.
Fig. 1 is a top view of a touch display panel according to an embodiment of the disclosure.
Fig. 2 is a schematic view illustrating a touch display panel according to the present disclosure when the designated included angle is 180 °.
Fig. 3 is a schematic diagram illustrating a touch display panel according to the present disclosure when the designated included angle is not equal to 180 °.
Fig. 4 is a schematic circuit block diagram of an embodiment of a touch display panel according to the present disclosure.
Fig. 5 is a flowchart of an embodiment of a correction method according to the present disclosure.
Fig. 6 is a flowchart of step S120 in an embodiment of the correction method of the present disclosure.
Fig. 7 is a flowchart of step S1220 in an embodiment of the correction method of the present disclosure.
Fig. 8 is a flowchart of step S130 in an embodiment of the correction method of the present disclosure.
Fig. 9 is a flowchart of step S130 in another embodiment of the correction method of the present disclosure.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted. Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale.
The terms "a," "an," "the," "said," and "at least one" are used to indicate the presence of one or more elements/components/parts/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.; the terms "first," "second," and "third," etc. are used merely as labels, and are not limiting on the number of their objects.
The row direction X and the column direction Y are only two mutually perpendicular directions, and in the drawings of the present disclosure, the row direction X may be a horizontal direction, and the column direction Y may be a vertical direction, but the present disclosure is not limited thereto. The X direction in the figure exemplarily shows the row direction, and the Y direction exemplarily shows the column direction.
The present disclosure provides a touch display panel, as shown in fig. 1 to 3, the touch display panel is a bendable flexible panel, which may include a touch substrate and a driving device DC, wherein:
the touch substrate can include a bending area BA and leveling areas PA separated from two sides of the bending area BA, and the bending area BA can be bent back and forth to enable the leveling areas PA to rotate oppositely or reversely, so that a certain included angle is formed. The included angle of the leveling areas PA at the two sides of the bending area BA may be defined as an appointed included angle α, the range of the appointed included angle α is not particularly limited herein, for example, the range of the appointed included angle α may be 90 ° to 180 °, when 90 °, the leveling areas PA are arranged in parallel, and at this time, the touch display panel is in a folded state; at 180 degrees, the leveling areas PA are coplanar, and the touch display panel is in an unfolded state at this time.
The touch display panel can be provided with a plurality of sensing units, and the sensing units are used for sensing touch operation of a user and generating sensing parameters; wherein, the sensing units sensors can be distributed in the bending area BA and the leveling area PA.
In some embodiments of the present disclosure, a touch display substrate includes a display substrate PNL and a touch layer TSP, wherein:
the display substrate PNL may be a display substrate including a driving backplane and a light emitting device layer, wherein:
the driving back plate is provided with a driving circuit which can be used for driving each light-emitting device of the light-emitting device layer to independently emit light respectively so as to display images. Meanwhile, the driving backplane may include a pixel region and a peripheral region located outside the pixel region, for example, the peripheral region may be a continuous or discontinuous annular region surrounding the pixel region. The bending area BA and the leveling area PA of the touch display panel are both provided with a pixel area and a peripheral area.
The driving circuit may include a pixel circuit and a peripheral circuit, at least a part of the pixel circuit being provided in the pixel region, and of course, a part of the region where a part of the pixel circuit exists may be located in the peripheral region. The pixel circuit may have a structure of 7T1C, 7T2C, 6T1C, or 6T2C, as long as the light-emitting device can be driven to emit light, and the structure is not particularly limited. The number of the pixel circuits is the same as that of the light emitting devices, and the pixel circuits are connected with the light emitting devices in a one-to-one correspondence manner so as to control the light emitting devices to independently emit light. Where nTmC denotes that one pixel circuit includes n transistors (denoted by the letter "T") and m capacitors (denoted by the letter "C").
The peripheral circuit is located in the peripheral area and connected with the pixel circuit for inputting a driving signal to the pixel circuit so as to control the light emitting device to emit light. The peripheral circuit may include a gate driving circuit, a source driving circuit, a light emission control circuit, and the like, and of course, may further include other circuits, and the specific structure of the peripheral circuit is not particularly limited herein.
The light emitting device layer is provided on a side of the driving backplane, e.g. on a surface of the driving layer facing away from the substrate. The light emitting device layer may include a plurality of light emitting devices arrayed distributed in a pixel region and a pixel defining layer defining each of the light emitting devices, wherein:
the pixel definition layer can be arranged on one side of the driving backboard, for example, the pixel definition layer is arranged on the surface of the second flat layer, which faces away from the substrate. The pixel defining layer serves to separate the respective light emitting devices. Specifically, the pixel defining layer may be provided with a plurality of openings, and each of the openings defines a range, which is a range of a light emitting device. The shape of the opening, that is, the shape of the outline of the opening on the orthographic projection of the driving back plate, may be a polygon, a smooth closed curve or other shapes, and the smooth closed curve may be a circle, an ellipse, a waist circle, or the like, and is not particularly limited herein.
A pixel circuit may be connected to the at least one light emitting device to emit light under the driving of the driving circuit. For example, the light emitting device may be connected to the second source-drain layer, and may emit light under the driving of the driving circuit. The light emitting device may be an OLED, which may include a first electrode, a light emitting functional layer, and a second electrode sequentially stacked in a direction away from the driving backplane, wherein:
the first electrode may be disposed on the same surface of the driving backplane 100 as the pixel defining layer, and may serve as an anode of the light emitting device. The openings of the pixel definition layer correspondingly expose the first electrodes one by one. The first electrode may be a single layer or a multilayer structure, and the material may include one or more of a conductive metal, a metal oxide, and an alloy.
The light-emitting functional layer is at least partially arranged in the opening and can comprise a hole injection layer, a hole transport layer, a light-emitting material layer, an electron transport layer and an electron injection layer which are sequentially stacked along the direction departing from the driving backboard, and the holes and the electrons can be compounded into excitons in the light-emitting material layer and the excitons radiate photons, so that visible light is generated, and the specific light-emitting principle is not detailed herein.
The second electrode may cover the light emitting functional layer, which may serve as a cathode of the light emitting device, and may be a single layer or a multi-layer structure, and a material thereof may include one or more of conductive metal, metal oxide, and alloy.
Further, the light emitting devices may share the same second electrode, specifically, the second electrode is a continuous conductive layer covering the light emitting functional layer and the pixel defining layer of each light emitting device, that is, the second electrode covers each opening in an orthographic projection of the pixel defining layer.
Further, in some embodiments of the present disclosure, the display panel may further include an encapsulation layer, wherein:
the packaging layer covers the light-emitting device layer and can be used for protecting the light-emitting device layer and preventing the light-emitting device from being corroded by external water and oxygen.
In some embodiments of the present disclosure, the Encapsulation may be implemented by using a Thin-Film Encapsulation (TFE), and specifically, the Encapsulation layer may include a first inorganic layer, an organic layer, and a second inorganic layer, wherein the first inorganic layer covers a surface of the light emitting device layer facing away from the driving backplane, and for example, the first inorganic layer may cover the second electrode. The organic layer can be arranged on the surface of the first inorganic layer, which is far away from the driving backboard, the edge limit of the organic layer is limited at the inner side of the boundary of the first inorganic layer, and the orthographic projection boundary of the organic layer on the driving backboard can be positioned in the peripheral area, so that the organic layer can cover all the light-emitting devices. The second inorganic layer may cover the organic layer and the first inorganic layer not covered by the organic layer, may block water and oxygen intrusion through the second inorganic layer, and may achieve planarization through the organic layer having flexibility.
As shown in fig. 1, the touch layer TSP may be disposed on a side of the display substrate PNL, for example, the touch layer TSP may be disposed on a side of the package layer away from the driving back plate, and may include a plurality of sensing units sensors, each of which may receive the driving signal and output a sensing signal, when performing a touch operation, the sensing signal of the sensing unit Sensor corresponding to the touch position changes, so as to obtain a sensing parameter, and determine the touch position according to the sensing parameter, so that the display substrate PNL displays an image according to the touch position.
The sensing units are distributed in the bending area BA and the leveling area PA, and are distributed in an array manner, and a plurality of rows of sensing units distributed along the row direction X can be arranged in the bending area BA.
Taking the touch layer TSP as a mutual capacitance type touch structure as an example:
in some embodiments of the present disclosure, the touch layer TSP may include a connection layer, an insulation layer, and an electrode layer, wherein:
the connection layer can be arranged on one side of the display substrate and comprises a plurality of groups of connection units distributed along the row direction X, and each group of connection units comprises connection units distributed along the column direction Y at intervals. The connecting layer is made of a conductive material, and the material of the connecting layer may be metal or metal oxide, and is not particularly limited herein.
The insulating layer may cover the connection layer, and the material thereof may be an insulating material such as silicon nitride, silicon oxide, etc., and is not particularly limited herein.
The electrode layer comprises a plurality of first touch electrodes and a plurality of second touch electrodes, and the first touch electrodes extend along the row direction X and are distributed along the column direction Y; the first touch electrode comprises a plurality of first electrode blocks connected in series along the row direction X; the plurality of second touch electrodes extend along the column direction Y and are distributed along the row direction X; the second touch electrode includes a plurality of second electrode blocks connected in series by a row of connecting units along the row direction Y, that is, two adjacent second electrode blocks in the row direction Y are connected to one connecting unit through via holes penetrating through the insulating layer, and the second electrode blocks in the same row are connected in series by a row of connecting units to obtain the second touch electrode. The second touch electrode and the first touch electrode are crossed and arranged in an insulating mode. The adjacent first electrode block and the second electrode block can form a capacitor, the capacitor is an induction unit Sensor, and the induction parameter is the size of the capacitor.
In addition, the touch structure may further include a buffer layer and a protection layer, where the buffer layer may cover the display substrate PNL, which may serve as a base of the touch layer, and the material of the buffer layer may include an inorganic insulating material such as silicon nitride and silicon oxide. The protective layer may cover the electrode layer and the region of the insulating layer not covered by the electrode layer, and the protective layer may be used to protect the electrode layer, and may be made of a transparent insulating material such as optical glue.
In other embodiments of the present disclosure, the touch layer TSP may include a first electrode layer, an insulating layer, and a second electrode layer, and the first electrode layer may include a plurality of first touch electrodes TX extending in the row direction X and spaced apart in the column direction Y; the second electrode layer is disposed on a side of the first electrode layer away from the display substrate PNL, and includes a plurality of second touch electrodes RX extending in the column direction Y and spaced apart from each other in the row direction X, so as to intersect with the first touch electrodes TX in space, the intersection region is separated by an insulating layer to form a capacitor, the capacitor is a sensing unit Sensor, and the sensing parameter is the size of the capacitor.
In addition, the touch layer TSP may also adopt other touch principles as long as the touch function can be realized, which are not listed here.
As shown in fig. 1, in order to facilitate bending, a GAP extending along the column direction Y may be provided in the touch layer TSP to cut the touch layer TSP into two touch portions TSPs distributed at intervals along the row direction X, the GAP is located in the bending area BA, a part of the touch portions TSPs is located in the bending area BA, and a part of the touch portions TSPs is located in the leveling area PA; the sensing units sensors are located at the touch portions TSPs and distributed in an array, and the bending area BA has a plurality of rows of sensing units sensors and is symmetrically distributed at two sides of the GAP. There is no Sensor in the GAP. When bending, the bending part can be bent along the GAP, and the width of the GAP is not limited in this respect, but is not wider than the width of the bending area BA in the row direction X.
As shown in fig. 1 and 4, the driving device DC of the touch display panel is used to drive the sensing unit Sensor and obtain the sensing parameter so as to determine the touch position, and at the same time, the driving device DC may control the display substrate PNL to display an image based on the touch position.
In order to adapt to the bending area BA and the GAP, the driving device DC may include two driving circuit boards PCBA separated from each other, and the two driving circuit boards PCBA are connected to the touch portions TSPs on both sides of the GAP one by one through a chip on film COF, respectively, so that the two touch portions TSPs may be independently driven. The driving circuit board PCBA may include a display driving circuit and a touch driving circuit TFPC, the display driving circuit is connected to a peripheral circuit of the display substrate PNL, the touch driving circuit TFPC may include a touch chip TIC, and the touch chip TIC may be connected to the sensing unit sensors of the touch portions TSPs. The drive circuit board PCBA can be connected with the touch chip TIC through an I2C interface, and can also be connected with interfaces such as SPI/USB/URAT/I3C/GPIO
The sensing unit Sensor can be driven by the touch driving circuit TFPC to obtain sensing parameters, the touch position can be determined according to the sensing parameters, and the display driving circuit can display images according to the touch position.
In addition, as shown in fig. 4, in some embodiments of the present disclosure, the touch display panel further includes an angle detection device AD, which may be disposed on the touch display substrate, and is configured to detect the angle of the specified included angle α and send the detected angle to the driving device DC. For example, the angle detection device AD may be disposed in the touch layer TSP or a region of the display substrate PNL in the leveling region PA. The number and structure of the angle detection devices AD are not particularly limited, as long as the angle of the specified included angle α of the leveling area PA can be detected. The PCBA can transmit the angle detection device AD to the touch chip TIC. The drive circuit board PCBA may include a memory and a processor, and the memory may store the angle of the specified included angle α detected by the angle detection device AD.
Based on the touch display panel, as shown in fig. 1 to 5, the present disclosure provides a correction method, which can avoid the problem of touch false alarm in the bending region, the correction method can be executed by the driving device DC, and 1 the correction method can include: in the state of no touch, executing the following steps S110 to S130, wherein:
step S110, enabling the designated included angle to be 180 degrees, and acquiring induction parameters of induction units of the bending area as target induction parameters;
step S120, determining compensation parameters of the induction units of the bending area when the appointed included angle is at any angle unequal to 180 degrees according to the induction parameters of the induction units of the bending area under a plurality of appointed included angles and the target induction parameters;
and S130, when the specified included angle is at any angle not equal to 180 degrees, enabling the deviation between the sensing parameter of the touch unit in the bending area and the target sensing parameter to be within a specified range according to the compensation parameter.
According to the correction method disclosed by the embodiment of the disclosure, the touch display panel can be corrected in a non-touch state, so that the problem of false touch alarm in the bending area BA is avoided. Specifically, in a non-touch state, the sensing parameters of the sensing units Sensor in the bending area BA with an appointed included angle of 180 ° can be used as target sensing parameters, at this time, the leveling area PA is arranged in a coplanar manner, and the sensing parameters of the sensing units in the bending area BA and the leveling area PA are consistent; the compensation parameters of the induction units Sensor of the bending area BA when the designated included angle alpha is at any angle unequal to 180 degrees can be determined according to the induction parameters of the induction units Sensor under the designated included angle alpha at a plurality of designated angles; and then, compensating the sensing parameters of the sensing unit Sensor after the bending of the bending area BA according to the compensation parameters, thereby making up the problem of false touch alarm caused by the variation of the sensing parameters of the sensing unit Sensor due to the bending of the bending area BA.
The following describes in detail the steps of the modification method according to the embodiment of the present disclosure:
since the false touch notification problem occurs when no touch is performed, the correction process needs to be performed when no touch operation is performed, the correction method can be performed before the touch display panel leaves the factory, and the user can not perform the correction method when the touch display panel is used.
In step S110, the designated included angle is set to 180 °, and the sensing parameters of the sensing unit in the bending region are obtained as target sensing parameters.
As shown in fig. 1 to fig. 3, the designated included angle α is an included angle of the leveling areas PA on both sides of the GAP, the designated included angle α is 180 degrees, which means that the bending area is not bent, and the leveling areas PA are coplanar, at this time, the sensing parameters of the sensing unit Sensor of the bending area BA and the sensing unit Sensor of the leveling area PA are the same, and are in a standard state without touch operation, and the sensing parameters of the sensing unit Sensor of the bending area BA can be obtained at this time as target sensing parameters.
The sensing units sensors in the bending area BA may be two rows of sensing units sensors, which are located at two sides of the GAP and are two rows of sensing units sensors closest to the GAP. Of course, the number of the sensing units sensors in the bending area BA may be more than two, and the number of the rows is even, and the sensing units sensors in the bending area BA may be symmetrically distributed on two sides of the GAP.
In step S120, according to the sensing parameters of the sensing units of the bending region at a plurality of designated angles of the designated included angle and the target sensing parameters, determining compensation parameters of the sensing units of the bending region at any angle not equal to 180 ° of the designated included angle.
As shown in fig. 6, in some embodiments of the present disclosure, step S120 may include step S1210 and step S1220, wherein:
step 1210, enabling the designated included angles to be at a plurality of designated angles respectively, and acquiring the induction parameters of the induction units of the bending area at each designated angle respectively to obtain basic induction parameters.
As shown in fig. 4, if the touch display panel includes the angle detection device AD, the angle of the designated included angle α can be directly detected by the angle detection device AD. Can set for a plurality of appointed angles to buckle through making the district BA of buckling, adjust the contained angle of leveling area PA for appointed angle, and under every appointed angle, acquire the induction element Sensor's of district BA of buckling sensing parameter, obtain basic induction parameter, because buckle the in-process, the induction element Sensor's of district BA of buckling electric field receives the influence, makes basic induction parameter different with target induction parameter, thereby probably takes place the touch-control wrong report.
For example, the specified angles may be 90 °, 95 °,100 °, 105 °, … 175 °, etc.
Step S1220, determining compensation parameters of the sensing units in the bending region at any angle not equal to 180 ° according to the basic sensing parameters and the corresponding designated angle.
Further, as shown in fig. 7, in some embodiments of the present disclosure, step S1220 may include step S1221 and step S1222, wherein:
and S1221, establishing a functional relation between the induction parameters and the specified included angle according to the basic induction parameters and the specified angle corresponding to the basic induction parameters.
Although the number of the designated angles is limited, the relationship between the angle of the designated included angle α and the sensing parameter may be established according to each designated angle and the corresponding sensing parameter, for example, a curve relating to the designated angle and the sensing parameter may be established, a functional relationship reflecting the sensing parameter and the designated included angle α may be obtained according to the curve, and the specific content of the function is not particularly limited herein and is related to the structure of the touch display panel.
Step S1222, determining a compensation parameter of the sensing unit of the bending region at any angle unequal to 180 ° according to the functional relationship and the target sensing parameter.
According to the functional relation, the induction parameters when the specified included angle alpha is any angle out of 180 degrees can be determined. For example:
in some embodiments of the present disclosure, step S1222 may include step S12221 and step S12222, wherein:
step S12221, determining a compensation parameter corresponding to each of the designated angles according to a deviation between the reference sensing parameter corresponding to each of the designated angles and the target sensing parameter.
The compensation parameter is a difference between the target sensing parameter and the reference sensing parameter, that is, the compensation parameter is equivalent to a variation of the sensing parameter of the sensing unit Sensor in the bending area BA with the target sensing parameter as a standard. For example, if the compensation parameter is a positive number, it indicates that the sensing parameter of the sensing unit Sensor in the bent area BA after bending is reduced compared with the sensing parameter before bending; if the compensation parameter is negative, it means that the sensing parameter of the sensing unit Sensor in the bent area BA after bending is increased compared to the sensing parameter before bending.
Step S12222, dividing the angle at which the bending area can be bent into a plurality of continuous included angle intervals, wherein 180 degrees are positioned outside each included angle interval; any compensation parameter corresponding to an angle not equal to 180 degrees is a compensation parameter corresponding to a specified angle included in an included angle interval in which the angle is located.
The bending angle of the bending area BA is a value range of the designated included angle α of the flat area PA, for example, the value range may be 0 to 180 °, and the included angle interval includes [90 °,100 ° ], [100 °,110 ° ], [110 °,120 ° ], [120 °,130 ° ], [130 °,140 ° ], and the like. Of course, the range of values can be larger or smaller.
Each included angle interval may correspond to a compensation parameter, and the compensation parameter may be a compensation parameter corresponding to a median value of the included angle interval, or an average value of the compensation parameters corresponding to each angle, and the like.
In step S130, when the designated included angle is at any angle not equal to 180 °, the deviation between the sensing parameter of the touch unit in the bending region and the target sensing parameter is within a designated range according to the compensation parameter.
The sensing parameters of the sensing unit Sensor in the bent area BA can be compensated through the compensation parameters, so that the deviation between the sensing parameters of the sensing unit Sensor in the bent area BA and the target sensing parameters under the condition of no touch is within a specified range. The designated range may be 0, that is, the sensing parameter of the Sensor in the bending area BA is equal to the target sensing parameter, and the designated range may be a range of values greater than 0, and the specific values are not particularly limited herein. Therefore, the sensing parameters of the Sensor in the bending area BA can be equal to or close to the target sensing parameters through the compensation of the compensation parameters, and the touch false alarm is avoided.
In some embodiments of the present disclosure, as shown in fig. 4 and 8, the touch display panel includes an angle detection device AD, and step S130 may include steps S1310 to S1330, where:
step S1310, determining the angle of the specified included angle, and determining an included angle interval where the angle of the specified included angle is located.
The angle of the specified included angle alpha can be detected through the angle detection device AD, and the included angle interval where the angle of the specified included angle alpha is located is determined.
Step S1320, obtaining the compensation parameter corresponding to the included angle interval.
Each included angle interval has corresponding compensation parameters.
Step S1330 of compensating the sensing parameter of the sensing unit of the bending area according to the compensation parameter, so that a deviation between the sensing parameter of the touch unit of the bending area and the target sensing parameter is within a specified range.
In other embodiments of the present disclosure, as shown in fig. 9, the touch display panel has no angle detection device, which can simplify the structure and reduce the cost, and step S130 may include steps S1340 to S1370, where:
step S1340, obtaining the induction parameters of the induction unit of the bending area to obtain reference induction parameters.
And the reference induction parameter is a compensated induction parameter and is used for determining the angle of the corresponding specified included angle.
And step S1350, determining an included angle interval corresponding to the reference induction parameter according to the reference induction parameter and the functional relation.
The reference induction parameters can be brought into the functional relation, so that the corresponding angle can be obtained, and the included angle interval of the angle can be determined according to the angle.
And S1360, obtaining a compensation parameter corresponding to the included angle interval.
In the case of a determination of the angle interval, the corresponding compensation parameter can be determined.
And S1370, compensating the induction parameters of the induction units in the bending area according to the compensation parameters, so that the deviation between the induction parameters of the touch units in the bending area and the target induction parameters is within a specified range.
The sensing parameters are compensated according to the compensation parameters, which may be the sum of the sensing parameters of the sensing units Sensor in the bending area BA and the compensation parameters, and the compensation parameters may be positive numbers or negative numbers, so that the sensing parameters are increased or decreased as long as the sensing parameters are close to or equal to the target sensing parameters.
In addition, in some embodiments of the present disclosure, since the gap extends in the column direction, the compensation parameter of the sensing parameter of the same column of sensing units can be made the same.
In some embodiments of the disclosure, a plurality of rows of sensing units are disposed on the same side of the GAP of the touch layer, and sensing parameters of different rows of sensing units located on the same side of the GAP in the bending region are different, so as to compensate the sensing parameters of the bending region more accurately and avoid touch false alarm to the greatest extent.
It should be noted that although the steps of the correction method of the present disclosure are depicted in the drawings in a particular order, this does not require or imply that the steps must be performed in this particular order, or that all of the depicted steps must be performed, to achieve the desired results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions, etc.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
Claims (13)
1. The touch display panel correction method is characterized by comprising a touch substrate, wherein the touch substrate comprises a bendable bending area and flat areas separated from two sides of the bending area, and an included angle of the flat areas on two sides of the bending area is defined as a designated included angle; the bending area and the leveling area are provided with a plurality of induction units;
the correction method comprises the following steps:
in the state of not performing touch control, executing the following steps:
enabling the specified included angle to be 180 degrees, and acquiring induction parameters of the induction units in the bending area as target induction parameters;
determining compensation parameters of the induction units of the bending area when the appointed included angle is at any angle not equal to 180 degrees according to the induction parameters of the induction units of the bending area under a plurality of appointed included angles and the target induction parameters;
and when the specified included angle is at any angle not equal to 180 degrees, enabling the deviation between the sensing parameter of the touch unit of the bending area and the target sensing parameter to be within a specified range according to the compensation parameter.
2. The correction method according to claim 1, wherein a compensation parameter of the induction unit of the bending area at any angle unequal to 180 ° of the specified included angle is determined according to the induction parameter of the induction unit of the bending area at a plurality of specified angles and the target induction parameter; the method comprises the following steps:
enabling the designated included angles to be at a plurality of designated angles respectively, and acquiring induction parameters of induction units of the bending area under each designated angle respectively to obtain basic induction parameters;
and determining compensation parameters of the induction units of the bending area when the specified included angle is at any angle unequal to 180 degrees according to the basic induction parameters and the corresponding specified angle.
3. The correction method according to claim 2, characterized in that, according to the basic sensing parameters and the corresponding designated angle, the compensation parameters of the sensing units of the bending area at any angle unequal to 180 ° of the designated included angle are determined; the method comprises the following steps:
establishing a functional relation between the induction parameters and the specified included angle according to the basic induction parameters and the specified angle corresponding to the basic induction parameters;
and determining compensation parameters of the induction units of the bending area when the specified included angle is at any angle unequal to 180 degrees according to the functional relation and the target induction parameters.
4. The correction method according to claim 3, characterized in that a compensation parameter of the induction parameters of the induction units of the bending zone at any angle unequal to 180 ° of the specified included angle is determined; the method comprises the following steps:
determining a compensation parameter corresponding to each appointed angle according to the deviation between the reference induction parameter corresponding to each appointed angle and the target induction parameter;
dividing the angle of the bending area which can be bent into a plurality of continuous included angle intervals, wherein 180 degrees is positioned outside each included angle interval; any compensation parameter corresponding to an angle not equal to 180 degrees is a compensation parameter corresponding to a specified angle included in an included angle interval in which the angle is located.
5. The correction method according to claim 4, wherein when the specified included angle is at any angle unequal to 180 °, the deviation between the sensing parameter of the touch unit of the bending area and the target sensing parameter is within a specified range according to the compensation parameter; the method comprises the following steps:
determining the angle of the specified included angle, and determining the included angle interval in which the angle of the specified included angle is located;
acquiring compensation parameters corresponding to the included angle intervals;
and compensating the induction parameters of the induction units of the bending area according to the compensation parameters, so that the deviation between the induction parameters of the touch units of the bending area and the target induction parameters is within a specified range.
6. The correction method according to claim 4, wherein the deviation between the sensing parameter of the touch unit of the bending area and the target sensing parameter is within a specified range according to the compensation parameter; the method comprises the following steps:
acquiring induction parameters of the induction units of the bending area to obtain reference induction parameters;
determining an included angle interval corresponding to the reference induction parameter according to the reference induction parameter and the functional relation;
acquiring compensation parameters corresponding to the included angle intervals;
and compensating the induction parameters of the induction units of the bending area according to the compensation parameters, so that the deviation between the induction parameters of the touch units of the bending area and the target induction parameters is within a specified range.
7. The correction method according to claim 5 or 6, wherein the compensation parameter is a difference between the target sensing parameter and a reference sensing parameter;
compensating the induction parameters of the induction units of the bending area according to the compensation parameters; the method comprises the following steps:
and calculating the sum of the induction parameters of the induction units of the bending area and the compensation parameters.
8. A touch display panel, comprising:
the touch display substrate comprises a bendable bending area and flat areas separated from two sides of the bending area, and the included angle of the flat areas on the two sides of the bending area is a designated included angle; the bending area and the leveling area are provided with a plurality of induction units;
a driving device connected to the touch display substrate for performing the correction method of any one of claims 1 to 7.
9. The touch display panel of claim 8, wherein the touch display substrate comprises:
a display substrate;
the touch layer is arranged on one side of the display substrate, a gap extending along the column direction is formed in the touch layer, so that the touch layer is divided into two touch parts distributed at intervals along the row direction, the gap is located in the bending area, partial areas of the touch parts are located in the bending area, and partial areas of the touch parts are located in the leveling area; the sensing unit is located at the touch part.
10. The touch display panel according to claim 9, wherein the bending region has a plurality of rows of the sensing units and is symmetrically distributed on two sides of the gap.
11. The touch display panel according to claim 10, wherein compensation parameters of the sensing units in the same row are the same.
12. The touch display panel according to claim 11, wherein a plurality of rows of the sensing units are disposed on the same side of the gap, and sensing parameters of different rows of the sensing units in the bending region are different.
13. The touch display panel according to claim 8, further comprising:
and the angle detection device is arranged on the touch display substrate and used for detecting the angle of the specified included angle and sending the angle to the driving device.
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| CN202210006777.3A CN114356147A (en) | 2022-01-05 | 2022-01-05 | Touch display panel and correction method thereof |
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| US20150220195A1 (en) * | 2014-02-05 | 2015-08-06 | Samsung Electronics Co., Ltd. | Method and apparatus for controlling flexible display and electronic device adapted to the method |
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| US20150220195A1 (en) * | 2014-02-05 | 2015-08-06 | Samsung Electronics Co., Ltd. | Method and apparatus for controlling flexible display and electronic device adapted to the method |
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