CN108227988B - Touch display screen and electronic equipment - Google Patents
Touch display screen and electronic equipment Download PDFInfo
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- CN108227988B CN108227988B CN201810002076.6A CN201810002076A CN108227988B CN 108227988 B CN108227988 B CN 108227988B CN 201810002076 A CN201810002076 A CN 201810002076A CN 108227988 B CN108227988 B CN 108227988B
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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
- 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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Abstract
The invention discloses a touch display screen and electronic equipment, wherein the touch display screen comprises: an inductive component comprising an inductive layer; a display assembly comprising a display layer; the induction layer is positioned above the display layer, and a synchronous channel is arranged between the display assembly and the induction assembly; the induction component acquires an output signal of the display component through the synchronous channel and determines whether to generate a collection signal based on the output signal; or the display component acquires the acquisition signal of the induction component through the synchronous channel and determines whether to generate an output signal based on the acquisition signal. By adopting the technical scheme of the invention, the touch performance of the touch screen can be improved, and the thicknesses of the touch display screen and the electronic equipment can be reduced.
Description
Technical Field
The invention relates to the field of electronic equipment, in particular to a touch display screen and electronic equipment.
Background
Fig. 1 shows a schematic structural diagram of a touch display screen, and as can be seen from fig. 1, a Touch (TP) layer is located above a Polarizer (POL) and is further away from a Liquid crystal display touch Module (LCM).
In order to consider the yield and the productivity, another structure of the touch display screen is shown in fig. 2, in which the touch layer is under the polarizer, so that the touch layer is closer to the Organic Light-emitting display touch module (OLED). Compared with the original structure, one POL is omitted between the touch layer (TP) and the display layer (OLED), so that the distance is reduced, but the touch layer is easily interfered by the noise of the display layer due to the fact that the distance is shortened because the noise of the display layer is large, and the touch performance of the touch screen is obviously reduced. In order to improve the touch performance of the touch screen, it is currently practiced to increase the thickness of an Optical Clear Adhesive (OCA), for example, the thickness of the OCA is increased to 150um from the original 25um, but this increases the thickness of the entire touch display screen, and further increases the thickness of the electronic device, so that the volume of the electronic device is thicker.
Disclosure of Invention
In view of the foregoing, the present invention is directed to a touch display screen and an electronic device, which can improve the touch performance of the touch screen and reduce the thickness of the touch display screen and the electronic device.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a touch display screen, where the touch display screen includes:
an inductive component comprising an inductive layer;
a display assembly comprising a display layer; the induction layer is positioned above the display layer, and a synchronous channel is arranged between the display assembly and the induction assembly;
the induction component acquires an output signal of the display component through the synchronous channel and determines whether to generate a collection signal based on the output signal;
or
The display component acquires the acquisition signal of the induction component through the synchronous channel and determines whether to generate an output signal based on the acquisition signal.
In the foregoing solution, optionally, the touch display screen further includes: the polaroid is positioned above the induction assembly.
In the foregoing solution, optionally, the sensing component is further configured to:
when the output signal represents that the display component is in a working state, determining that no acquisition signal is generated;
and when the output signal represents that the display component is in a non-working state, determining to generate a collection signal.
In the foregoing scheme, optionally, when the output signal is a high-level signal, it represents that the display module is in a working state; when the output signal is a low level signal, the display component is represented to be in a non-working state; or
When the output signal is a low level signal, the display component is represented to be in a working state; and when the output signal is a high-level signal, the display component is represented to be in a non-working state.
In the foregoing solution, optionally, the display module is further configured to:
when the acquisition signal represents that the induction component is in a working state, determining that no output signal is generated;
and when the acquisition signal represents that the induction component is in a non-working state, determining to generate an output signal.
In the above scheme, optionally, when the collected signal is a high-level signal, the sensing assembly is characterized to be in a working state; when the collected signal is a low-level signal, the induction component is represented to be in a non-working state; or
When the collected signal is a low-level signal, the induction component is represented to be in a working state; when the acquisition signal is a high-level signal, the induction component is characterized to be in a non-working state.
In the foregoing solution, optionally, the display component and the sensing component are bonded by an Optically Clear Adhesive (OCA), and a thickness of the OCA is smaller than or equal to 150 um.
In the foregoing scheme, optionally, the synchronization channel is implemented by using a synchronization signal line.
In the above aspect, optionally, the display assembly includes a Liquid Crystal Display (LCD) or an Organic Light Emitting Display (OLED).
In a second aspect, an embodiment of the present invention provides an electronic device, where the electronic device includes:
the casing and set up in the touch-control display screen of the above of casing.
According to the touch display screen and the electronic equipment provided by the technical scheme, the synchronous channel is arranged between the display component and the induction component, so that the induction component can determine whether to generate an acquisition signal according to an output signal output by the display component; therefore, when the display component is in a working state, the induction component does not generate an acquisition signal, and when the display component is in a non-working state, the induction component generates the acquisition signal, so that the interference of noise generated by a display is not resisted by increasing the thickness of the OCA, the thicknesses of the touch display screen and the electronic equipment are further reduced, and the volume of the electronic equipment is slimmer; meanwhile, the display assembly acquires the acquisition signal of the induction assembly through the synchronous channel, and determines whether to generate an output signal based on the acquisition signal, and the display assembly and the induction assembly cannot generate signals simultaneously, so that the induction assembly can effectively avoid noise interference of a display, and further can improve the touch performance of the touch screen.
Drawings
FIG. 1 is a schematic diagram of a structure of a touch display screen;
FIG. 2 is a schematic view of another structure of a touch display screen;
fig. 3 is a schematic view of a composition structure of a touch display screen according to an embodiment of the present invention;
fig. 4 is a schematic view of another structure of a touch display screen according to an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating operating states of a display device and a sensing device according to an embodiment of the present invention.
Detailed Description
In order to understand the features and technical contents of the present invention more thoroughly, the thickness parameters of each layer in the touch display screen are described first.
The thicknesses of the layers of the touch display screen shown in figure 1 can be found in table 1,
TABLE 1
In order to take the yield and productivity into consideration, the touch display screen shown in fig. 2 has a structure diagram in which the touch layer is under the polarizer, so that the touch layer is closer to the POLED. Compared with the structure of fig. 1, one POL is omitted between the TP and the POLED, which is equivalent to 147um being omitted between the TP and the POLED according to the thickness parameters shown in table 1, so that the distance is reduced, but the touch layer is easily interfered by the noise of the display layer due to the close distance because the noise of the display layer is large, and the touch performance of the touch screen is obviously reduced. To improve the performance of TP, some manufacturers currently increase the thickness of the OCA from 25um to 150um, which results in an increase in the thickness of the entire assembly.
Therefore, how to reduce the thickness of the entire module becomes an urgent technical problem to be solved.
The technical solution of the present invention is further elaborated below with reference to the drawings and the specific embodiments.
Example one
The invention provides a touch display screen, and fig. 3 is a schematic view of a composition structure of a touch display screen according to an embodiment of the invention, as shown in fig. 3, the touch display screen includes:
an inductive component 10, said inductive component 10 comprising an inductive layer 11;
a display assembly 20, the display assembly 20 comprising a display layer 21; the sensing layer 11 is positioned above the display layer 21, and a synchronization channel is arranged between the display component 20 and the sensing component 10;
the sensing assembly 10 acquires an output signal of the display assembly 20 through the synchronization channel and determines whether to generate a collection signal based on the output signal;
or
The display assembly 20 acquires the acquisition signal of the sensing assembly 10 through the synchronization channel and determines whether to generate an output signal based on the acquisition signal.
Optionally, as shown in fig. 4, the touch display screen may further include: and the polarizer 30, wherein the polarizer 30 is positioned above the induction assembly 10. The polarizer 30, the induction assembly 10 and the display assembly 20 are sequentially stacked; the sensing assembly 10 is located under the polarizer 30.
As an embodiment, the inductive component 10 is further configured to:
when the output signal represents that the display component is in a working state, determining that no acquisition signal is generated;
and when the output signal represents that the display component is in a non-working state, determining to generate a collection signal.
Optionally, when the output signal is a high level signal, the display component is characterized to be in a working state; and when the output signal is a low level signal, the display component is represented to be in a non-working state.
Optionally, when the output signal is a low level signal, the display component is characterized to be in a working state; and when the output signal is a high-level signal, the display component is represented to be in a non-working state.
It should be noted that the high level and the low level may be defined according to specific practical situations.
For example, when the voltage value is greater than the first voltage value, it is determined as high level; when the voltage value is smaller than the second voltage value, determining that the voltage value is a low level; wherein the first voltage value is greater than the second voltage value.
For another example, if one of two or more electrical quantities is specified as a reference (logic level) in the logic circuit, the ratio is higher than 1 and lower than 1. Simply speaking, a high level is above the reference and a low level is vice versa.
In this manner, the sensing assembly 10 can determine whether to generate the collecting signal according to the output signal output from the display assembly 20; like this, when display element 20 is in operating condition, response subassembly 10 does not produce the collection signal, and when display element 20 was in unoperated state, response subassembly 10 produced the collection signal, like this, need not resist the interference of the noise that the display produced through the thickness that increases OCA, and then has reduced touch-control display screen and electronic equipment's thickness, enables electronic equipment's volume slimmer.
In the foregoing solution, optionally, the display module 20 is further configured to:
when the acquisition signal represents that the induction component is in a working state, determining that no output signal is generated;
and when the acquisition signal represents that the induction component is in a non-working state, determining to generate an output signal.
Optionally, when the acquired signal is a high-level signal, the sensing assembly is characterized to be in a working state; when the acquisition signal is a low level signal, the induction component is characterized to be in a non-working state.
Optionally, when the acquired signal is a low-level signal, the sensing assembly is characterized to be in a working state; when the acquisition signal is a high-level signal, the induction component is characterized to be in a non-working state.
It should be noted that the standard of the high and low levels corresponding to the collected signal may be the same as or different from the standard of the high and low levels corresponding to the output signal.
In the above solution, optionally, the display assembly 20 and the sensing assembly 10 are bonded by an Optically Clear Adhesive (OCA).
For example, the thickness of the OCA is less than or equal to 150 um.
In the foregoing solution, optionally, the touch display screen further includes:
and an adhesive tape 40 (not shown in the drawings) disposed around the display assembly 20 for protecting the display assembly 20 and preventing the display assembly 20 from being scratched.
In the foregoing scheme, optionally, the synchronization channel is implemented by using a synchronization signal line.
For example, the synchronization signal line may be a signal line such as a frame synchronization signal line, a line synchronization signal line, or a field synchronization signal line.
In the above aspect, optionally, the display assembly includes a Liquid Crystal Display (LCD) or an Organic Light Emitting Display (OLED).
Preferably, the OLED is a Plastic Organic Light Emitting Display (POLED).
FIG. 5 is a schematic diagram showing the operation states of the display module and the sensing module, and it can be seen from FIG. 5 that a synchronous signal line is led from the OLED to the TP, the TP and the OLED perform signal synchronization and time-sharing operation, and the TP does not operate when the OLED operates; when the TP works, the OLED does not work; therefore, the TP avoids the interference of the OLED, the signal to noise ratio of the TP is improved, and the touch performance can be improved under the condition that the thickness of the OCA is not increased and the requirement of the touch display screen for thinness is met.
In the touch display screen of the embodiment, the synchronization channel is arranged between the display component and the sensing component, so that the sensing component can determine whether to generate the acquisition signal according to the output signal output by the display component; therefore, when the display component is in a working state, the induction component does not generate an acquisition signal, and when the display component is in a non-working state, the induction component generates the acquisition signal, so that the interference of noise generated by a display is not resisted by increasing the thickness of the OCA, the thicknesses of the touch display screen and the electronic equipment are further reduced, and the volume of the electronic equipment is slimmer; meanwhile, the display assembly acquires the acquisition signal of the induction assembly through the synchronous channel, and determines whether to generate an output signal based on the acquisition signal, and the display assembly and the induction assembly cannot generate signals simultaneously, so that the induction assembly can effectively avoid noise interference of a display, and further can improve the touch performance of the touch screen.
Example two
Based on the touch display screen shown in fig. 3, the invention also discloses a working method of the touch display screen, which comprises the following steps:
the sensing assembly acquires an output signal of the display assembly through the synchronous channel and determines whether to generate an acquisition signal or not based on the output signal;
the display component acquires the acquisition signal of the induction component through the synchronous channel and determines whether to generate an output signal based on the acquisition signal.
As an alternative embodiment, the sensing module acquires the output signal of the display module through the synchronization channel, and determines whether to generate the acquisition signal based on the output signal, including:
when the output signal represents that the display component is in a working state, determining that no acquisition signal is generated;
and when the output signal represents that the display component is in a non-working state, determining to generate a collection signal.
Optionally, when the output signal is a high level signal, the display component is characterized to be in a working state; and when the output signal is a low level signal, the display component is represented to be in a non-working state.
Optionally, when the output signal is a low level signal, the display component is characterized to be in a working state; and when the output signal is a high-level signal, the display component is represented to be in a non-working state.
As an alternative embodiment, the display module acquires the acquisition signal of the sensing module through the synchronization channel, and determines whether to generate the output signal based on the acquisition signal, including:
when the acquisition signal represents that the induction component is in a working state, determining that no output signal is generated;
and when the acquisition signal represents that the induction component is in a non-working state, determining to generate an output signal.
Optionally, when the acquired signal is a high-level signal, the sensing assembly is characterized to be in a working state; when the acquisition signal is a low level signal, the induction component is characterized to be in a non-working state.
Optionally, when the acquired signal is a low-level signal, the sensing assembly is characterized to be in a working state; when the acquisition signal is a high-level signal, the induction component is characterized to be in a non-working state.
Therefore, when the display component is in a working state, the induction component does not generate an acquisition signal, and when the display component is in a non-working state, the induction component generates the acquisition signal, so that the interference of noise generated by a display is not resisted by increasing the thickness of the OCA, the thicknesses of the touch display screen and the electronic equipment are further reduced, and the volume of the electronic equipment is slimmer; meanwhile, the display assembly acquires the acquisition signal of the induction assembly through the synchronous channel, and determines whether to generate an output signal based on the acquisition signal, and the display assembly and the induction assembly cannot generate signals simultaneously, so that the induction assembly can effectively avoid noise interference of a display, and further can improve the touch performance of the touch screen.
The invention also discloses electronic equipment which comprises the touch display screen. Because the touch display screen does not resist the interference of noise generated by the display by increasing the thickness of the OCA, the thicknesses of the touch display screen and the electronic equipment are further reduced, and the volume of the electronic equipment is slimmer.
The embodiment of the scheme aims at thinning the display touch screen of the OLED; however, after the touch control layer is thinned, the POL is less than that of the original structure between the touch control layer and the display layer, the distance is reduced by 147um, the noise of the display layer is large, and the touch control is easily interfered by the display noise due to the close distance, so that the touch control performance is obviously reduced; the embodiment of the scheme further leads a TE synchronous signal line from the led to the TP, the TP and the OLED carry out signal synchronization and work in a time-sharing way, and the TP does not work when the led works; and when the TP works, the OLED does not work, so that the interference of the OLED is avoided, the signal to noise ratio of the TP is improved, the thickness of the OCA can be reduced, and the touch performance is improved.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all the functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: a mobile storage device, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Alternatively, the integrated unit of the present invention may be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as a separate product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic or optical disk, or various other media that can store program code.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A touch display screen, the touch display screen comprising:
an inductive component comprising an inductive layer;
a display assembly comprising a display layer; the induction component is bonded above the display component in a laminating way, and a synchronous channel is arranged between the display component and the induction component;
the induction component acquires an output signal of the display component through the synchronous channel and determines whether to generate a collection signal based on the output signal;
or
The display component acquires the acquisition signal of the induction component through the synchronous channel and determines whether to generate an output signal based on the acquisition signal.
2. The touch display screen of claim 1, further comprising: the polaroid is positioned above the induction assembly.
3. The touch-sensitive display screen of claim 1, wherein the sensing component is further configured to:
when the output signal represents that the display component is in a working state, determining that no acquisition signal is generated;
and when the output signal represents that the display component is in a non-working state, determining to generate a collection signal.
4. The touch display screen of claim 3,
when the output signal is a high level signal, the display component is represented to be in a working state; when the output signal is a low level signal, the display component is represented to be in a non-working state; or
When the output signal is a low level signal, the display component is represented to be in a working state; and when the output signal is a high-level signal, the display component is represented to be in a non-working state.
5. The touch display screen of claim 1, wherein the display component is further configured to:
when the acquisition signal represents that the induction component is in a working state, determining that no output signal is generated;
and when the acquisition signal represents that the induction component is in a non-working state, determining to generate an output signal.
6. Touch display screen according to claim 5,
when the collected signal is a high-level signal, the induction component is represented to be in a working state; when the collected signal is a low-level signal, the induction component is represented to be in a non-working state; or
When the collected signal is a low-level signal, the induction component is represented to be in a working state; when the acquisition signal is a high-level signal, the induction component is characterized to be in a non-working state.
7. The touch display screen of claim 1, wherein the display component and the sensing component are bonded by an Optically Clear Adhesive (OCA), and the thickness of the OCA is less than or equal to 150 um.
8. The touch display screen of claim 1, wherein the synchronization channel is implemented using a synchronization signal line.
9. The touch display screen of any one of claims 1 to 8, wherein the display component comprises a Liquid Crystal Display (LCD) or an Organic Light Emitting Display (OLED).
10. An electronic device, the electronic device comprising:
a housing and the touch display screen of any one of claims 1 to 9 disposed on the housing.
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| EP2620857A1 (en) * | 2012-01-27 | 2013-07-31 | Research In Motion Limited | Touch-sensitive display and method of controlling a touch-sensitive display |
| CN104460082A (en) * | 2014-12-10 | 2015-03-25 | 深圳市华星光电技术有限公司 | Liquid crystal display with touch function and touch detection method of liquid crystal display |
| CN104571695A (en) * | 2014-12-24 | 2015-04-29 | 深圳莱宝高科技股份有限公司 | Touch display device |
| CN106095171A (en) * | 2012-05-30 | 2016-11-09 | 乐金显示有限公司 | There is display device and the driving method thereof of integrated touch screen |
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2018
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|---|---|---|---|---|
| EP2620857A1 (en) * | 2012-01-27 | 2013-07-31 | Research In Motion Limited | Touch-sensitive display and method of controlling a touch-sensitive display |
| CN106095171A (en) * | 2012-05-30 | 2016-11-09 | 乐金显示有限公司 | There is display device and the driving method thereof of integrated touch screen |
| CN104460082A (en) * | 2014-12-10 | 2015-03-25 | 深圳市华星光电技术有限公司 | Liquid crystal display with touch function and touch detection method of liquid crystal display |
| CN104571695A (en) * | 2014-12-24 | 2015-04-29 | 深圳莱宝高科技股份有限公司 | Touch display device |
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