CN109375814B - Touch method and touch device - Google Patents

Touch method and touch device Download PDF

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Publication number
CN109375814B
CN109375814B CN201811330766.0A CN201811330766A CN109375814B CN 109375814 B CN109375814 B CN 109375814B CN 201811330766 A CN201811330766 A CN 201811330766A CN 109375814 B CN109375814 B CN 109375814B
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area
pressing
touch
voltage
pressed
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CN109375814A (en
Inventor
郑净远
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Huizhou China Star Optoelectronics Technology Co Ltd
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Huizhou China Star Optoelectronics Technology Co Ltd
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412Digitisers structurally integrated in a display
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/13338Input devices, e.g. touch panels
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0414Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416Control or interface arrangements specially adapted for digitisers

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Nonlinear Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Position Input By Displaying (AREA)
  • Liquid Crystal (AREA)

Abstract

The invention provides a touch method and touch equipment, wherein the touch method comprises the following steps: the method comprises a pressing signal induction step, a pressing zone position acquisition step, an indentation zone position acquisition step, a first instruction issuing step and a first voltage control step. The touch control equipment comprises a signal sensing unit, a pressing area position acquisition unit, an instruction issuing unit and a voltage control unit. The invention obtains the position of the pressing point on the touch screen, and raises the voltage of the pressing point and the area nearby the pressing point in a short time, thereby ensuring that the liquid crystal cannot deflect, causing no sliding trace near the position of the pressing point, preventing the change of the penetration rate from influencing the image presentation of the picture, and further improving the definition of the picture.

Description

Touch method and touch device
Technical Field
The present invention relates to the field of touch control, and in particular, to a touch control method and a touch control device.
Background
The touch screen is also called as touch screen or touch panel, and is an inductive liquid crystal display device capable of receiving input signals of a touch head and the like, when a graphical button on the screen is touched, a touch feedback system on the screen can drive various connecting devices according to a pre-programmed program, so that the touch screen can be used for replacing a mechanical button panel, and vivid video and audio effects can be produced by a liquid crystal display picture. As a latest computer input device, the touch screen is the simplest, convenient and natural man-machine interaction mode at present.
As shown in fig. 1-4, when the touch panel is used, since the liquid crystal 11 is fluid and can not be fixed, the voltage of the touch region (time t1 to time t 2) is not changed by the external force of touch, so that the arrangement and direction of the liquid crystal 11 in the touch region 12 are changed, and the transmittance is changed from time t1 to time t2, which results in black white. When the external force disappears, the liquid crystal will slowly return to the normal arrangement direction along the direction of the electric field, so that the picture display is normal. When a finger slides on the surface of the touch screen, the liquid crystal rotates for too long a time, so that the surface of the touch screen has sliding traces, and the quality of the touch screen is poor.
Disclosure of Invention
The invention aims to provide a touch method and touch equipment, which can effectively solve the problem that liquid crystal rotates under the action of pressing force, and prevent the reduction of penetration rate and the influence on image formation of a display screen.
To solve the above technical problem, the present invention provides a touch method, comprising the following steps: a pressing signal induction step, namely acquiring a pressing signal when any position in a touch area is pressed; a pressing region position acquisition step of acquiring a pixel position of a pressed region according to the pressing signal; an indentation area position acquisition step, namely calculating the range of the indentation area according to the pixel position of the pressed area; a first instruction issuing step of issuing a first control instruction to a voltage control unit according to the range of the indentation area; and a first voltage control step, namely adjusting the voltage of the indentation area from a normal value to a preset voltage threshold value according to a first control command.
Further, the step of stopping the pressing signal induction obtains a pressing stopping signal when any position in a touch area is stopped pressing.
Further, after the first voltage control step, the method further comprises the following steps:
a second instruction issuing step of issuing a second control instruction according to the press stop signal; and a second voltage control step, wherein the voltage of the indentation area is adjusted to the normal value from the voltage threshold value according to the second control instruction.
Further, the pressing signal includes position information of the pressed region.
Further, in the step of obtaining the position of the pressing area, a two-dimensional coordinate system is established in a controllable area of a touch device; the pixel position of the pressed area is a coordinate range of the pressed area under the two-dimensional coordinate system.
Further, in the indentation area position obtaining step, the indentation area is an area formed by extending a preset width to the periphery of the pressed area.
Further, the present invention also provides a touch device, including: the signal induction unit is used for acquiring a pressing signal when any position in a touch area is pressed; a pressing region position acquisition unit configured to acquire a pixel position of a pressed region based on the pressing signal; an indentation area position acquisition unit for calculating the range of the indentation area according to the pixel position of the pressed area; the instruction issuing unit is used for issuing a control instruction to the voltage control unit according to the range of the indentation area; if the pressing signal exists, a first control instruction is issued; otherwise, issuing a second control instruction; and the voltage control unit is used for adjusting the voltage of the indentation area to a preset voltage threshold according to the first control instruction.
Furthermore, when any position in a touch area is stopped being pressed, the signal sensing unit is used for acquiring a pressing stop signal.
Further, the instruction issuing unit is used for issuing a second control instruction according to the press stopping signal; the voltage control unit is used for adjusting the voltage of the indentation area to the normal value according to the second control instruction.
The invention has the beneficial effects that: the invention provides a touch method and touch equipment, which are used for acquiring the position of a pressing point on a touch screen and increasing the voltage of the pressing point and the voltage of a region near the pressing point in a short time, so that liquid crystal is prevented from deflecting, sliding marks are prevented from being generated near the position of the pressing point, the influence of the change of the penetration rate on image presentation is prevented, and the definition of an image is improved.
Drawings
The invention is further described below with reference to the figures and examples.
FIG. 1 is a schematic diagram of a prior art liquid crystal structure;
FIG. 2 is a schematic view of a liquid crystal deflection structure in a pressing region;
FIG. 3 is a graph of voltage variation of a prior art liquid crystal;
FIG. 4 is a graph showing the change in the transmittance of the compression region;
FIG. 5 is a flowchart of a touch method according to the present invention;
FIG. 6 is a schematic structural diagram of a touch device according to the present invention;
FIG. 7 is a diagram illustrating the variation of the liquid crystal voltage state according to the present invention;
FIG. 8 is a graph of the change in transmittance state of the present invention;
fig. 9 is a functional module diagram of a touch device according to the present invention.
Detailed Description
The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments of the invention which may be wet. Directional phrases used herein, such as, for example, upper, lower, front, rear, left, right, inner, outer, lateral, etc., refer only to the orientation of the accompanying drawings. The names of the elements, such as the first, the second, etc., mentioned in the present invention are only used for distinguishing different elements and can be better expressed. In the drawings, elements having similar structures are denoted by the same reference numerals.
Embodiments of the present invention will be described in detail herein with reference to the accompanying drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided to explain the practical application of the invention and to enable others skilled in the art to understand the invention for various embodiments and with various modifications as are suited to the particular use contemplated.
As shown in fig. 5, the present invention further provides a touch device 10, which includes at least one touch area 13, wherein the touch area 13 is an operable area on a panel of the touch device 10.
As shown in fig. 6, the touch device further includes a signal sensing unit 14, a pressing area position obtaining unit 15, a pressing area position obtaining unit 16, an instruction issuing unit 17, and a voltage control unit 18.
When any position in a touch area 13 is pressed, the signal sensing unit 14 acquires a pressing signal; the pressing region position acquisition unit 15 acquires the pixel position of the pressed region from the pressing signal; the indentation area position acquisition unit 16 calculates the range of the indentation area according to the pixel position of the pressed area 12; the instruction issuing unit 17 issues a control instruction to the voltage control unit according to the range of the indentation area; if the pressing signal exists or the pressing signal is continuously acquired, issuing a first control instruction, otherwise, issuing a second control instruction; the voltage control unit 18 adjusts the voltage of the indentation area to a preset voltage threshold according to the first control instruction. When any position in a touch area 13 is stopped being pressed, the signal sensing unit 14 is used to obtain a pressing stop signal. The instruction issuing unit 17 is configured to issue a second control instruction according to the stop pressing signal; the voltage control unit is used for adjusting the voltage of the indentation area to the normal value according to the second control instruction.
As shown in fig. 7, in operation, when a finger of a user continuously presses the touch area 13 of the touch device (at time t 1), the signal sensing unit 14 continuously obtains the pressing signal, the pressing area position obtaining unit 15 obtains the pixel position of the pressed area, the indentation area position obtaining unit 16 calculates the range of the indentation area, the instruction issuing unit 17 issues a first control instruction to the voltage control unit 18, and the voltage control unit 18 adjusts the voltage of the indentation area to the preset voltage threshold.
As shown in fig. 8, the liquid crystal in the pressing region 12 is normally deflected by adjusting the voltage values at times t1 to t2, so that the voltage 21 of the transmittance 23 is maintained at the value of the rated voltage 22 at times t1 to t2, thereby displaying no sliding trace, further completing the imaging of the pressing region 12, and making the picture clearer.
At time t2, when the finger of the user leaves the touch area 13, the signal sensing unit 14 does not sense the pressing signal, the instruction issuing unit 17 issues a second control instruction to the voltage control unit 18, and the voltage control unit 18 adjusts the voltage of the indentation area to the normal value according to the second control instruction.
The time interval for the signal sensing unit 14 to collect the signal is 0.01 to 0.05 seconds, and when the user' S finger continuously presses the touch area 13, if the position of the finger changes, the pixel position and the indentation area of the pressed area will also change, and steps S1 to S9 of the touch method are also completed within 0.01 to 0.05 seconds.
As shown in fig. 9, in order to distinguish from other touch devices, the present invention further provides a touch method, which includes the following steps S1-S8.
S1, a pressing signal induction step, namely receiving a pressing signal at the time of t1 when any position in the touch area 13 is pressed by an external force; the touch area 13 is an operable area on the touch device panel 10, and the pressing signal includes position information of the pressed area.
S2, a pressing area position obtaining step, namely obtaining the pixel position of the pressed area 12 according to the pressing signal; in the step of obtaining the position of the pressing area, establishing a two-dimensional coordinate system in a controllable area of a touch device; the pixel position of the pressed area is a coordinate range of the pressed area under the two-dimensional coordinate system.
S3, an indentation area position acquisition step, namely calculating the range of the indentation area according to the pixel position of the pressed area; the indentation area is an area formed by extending a preset width to the periphery of the pressed area.
And S4, a first instruction issuing step, wherein a control instruction is issued to the voltage control unit according to the range of the indentation area.
And S5, a first voltage control step, namely, increasing the voltage of the indentation area from a normal value to a preset voltage threshold value within the time from t1 to t2 according to a first control command.
S6, stop pressing signal sensing step, when any position in a touch area 13 stops pressing, obtaining a stop pressing signal.
And S7, a second instruction issuing step, namely issuing a second control instruction according to the stop pressing signal.
And S8, a second voltage control step, namely, adjusting the voltage of the indentation area from the voltage threshold value to the normal value according to the second control command.
The liquid crystal in the pressing area 12 is normally deflected by adjusting the voltage values at the time points t1 to t2, so that the transmittance is maintained at the value in the normal state at the time points t1 to t2, and the image of the pressing area 12 is further complete, so that the picture is clearer.
It should be noted that many variations and modifications of the embodiments of the present invention fully described are possible and are not to be considered as limited to the specific examples of the above embodiments. The above examples are intended to be illustrative of the invention and are not intended to be limiting. In conclusion, the scope of the present invention should include those changes or substitutions and modifications which are obvious to those of ordinary skill in the art.

Claims (9)

1. A touch method is characterized by comprising the following steps:
a pressing signal induction step, namely acquiring a pressing signal when any position in a touch area is pressed;
a pressing region position acquisition step of acquiring a pixel position of a pressed region according to the pressing signal;
an indentation area position acquisition step, namely calculating the range of the indentation area according to the pixel position of the pressed area;
a first instruction issuing step of issuing a first control instruction to a voltage control unit according to the range of the indentation area;
a first voltage control step, namely adjusting the voltage of the indentation area from a normal value to a preset voltage threshold value according to a first control command; the preset voltage threshold is higher than the normal value.
2. The touch method of claim 1, further comprising:
and a step of stopping the pressing signal induction, namely acquiring a pressing stopping signal when any position in a touch area is stopped pressing.
3. The touch method of claim 2,
after the step of sensing the stop pressing signal, the method further comprises the following steps:
a second instruction issuing step of issuing a second control instruction according to the press stop signal; and
and a second voltage control step, namely adjusting the voltage of the indentation area from the voltage threshold value to the normal value according to the second control instruction.
4. The touch method of claim 1,
the pressing signal includes position information of the pressed region.
5. The touch method of claim 1,
in the pressing zone position acquisition step,
establishing a two-dimensional coordinate system in a controllable area of touch equipment;
the pixel position of the pressed area is a coordinate range of the pressed area under the two-dimensional coordinate system.
6. The touch method of claim 1,
in the indentation region position acquisition step,
the indentation area is an area formed by extending a preset width to the periphery of the pressed area.
7. A touch device, comprising:
the signal induction unit is used for acquiring a pressing signal when any position in a touch area is pressed;
a pressing region position acquisition unit configured to acquire a pixel position of a pressed region based on the pressing signal;
an indentation area position acquisition unit for calculating the range of the indentation area according to the pixel position of the pressed area;
the instruction issuing unit is used for issuing a control instruction to the voltage control unit according to the range of the indentation area; if the pressing signal exists, a first control instruction is issued; otherwise, issuing a second control instruction; and
the voltage control unit is used for adjusting the voltage of the indentation area from a normal value to a preset voltage threshold value according to the first control instruction; the preset voltage threshold is higher than the normal value.
8. Touch device according to claim 7,
when any position in a touch area is stopped being pressed,
the signal sensing unit is used for acquiring a pressing stop signal.
9. Touch device according to claim 8,
the instruction issuing unit is used for issuing a second control instruction according to the press stopping signal;
the voltage control unit is used for adjusting the voltage of the indentation area to the normal value according to the second control instruction.
CN201811330766.0A 2018-11-09 2018-11-09 Touch method and touch device Active CN109375814B (en)

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CN109375814B true CN109375814B (en) 2022-03-08

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CN101494041A (en) * 2009-03-13 2009-07-29 友达光电股份有限公司 Method for reducing daggle ghost phenomena of liquid crystal display and liquid crystal display
CN103943077A (en) * 2013-12-03 2014-07-23 厦门天马微电子有限公司 Adjusting method for display device driving voltage and display device
CN103984160A (en) * 2013-12-27 2014-08-13 厦门天马微电子有限公司 Array substrate, manufacturing method thereof and liquid crystal display component
CN104423102A (en) * 2013-09-03 2015-03-18 北京京东方光电科技有限公司 Liquid crystal display screen, display device and method for improving display effect of display device

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TWI389016B (en) * 2008-08-26 2013-03-11 Acer Inc Integrated pixel structure, integrated touch panel lcd device and method of controlling the same
JP5382658B2 (en) * 2010-02-26 2014-01-08 株式会社ジャパンディスプレイ Display device with touch sensor, touch panel, touch panel driving method, and electronic device
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101494041A (en) * 2009-03-13 2009-07-29 友达光电股份有限公司 Method for reducing daggle ghost phenomena of liquid crystal display and liquid crystal display
CN104423102A (en) * 2013-09-03 2015-03-18 北京京东方光电科技有限公司 Liquid crystal display screen, display device and method for improving display effect of display device
CN103943077A (en) * 2013-12-03 2014-07-23 厦门天马微电子有限公司 Adjusting method for display device driving voltage and display device
CN103984160A (en) * 2013-12-27 2014-08-13 厦门天马微电子有限公司 Array substrate, manufacturing method thereof and liquid crystal display component

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