CN108287632A - Pressure touch senses module and display device - Google Patents
Pressure touch senses module and display device Download PDFInfo
- Publication number
- CN108287632A CN108287632A CN201810054692.6A CN201810054692A CN108287632A CN 108287632 A CN108287632 A CN 108287632A CN 201810054692 A CN201810054692 A CN 201810054692A CN 108287632 A CN108287632 A CN 108287632A
- Authority
- CN
- China
- Prior art keywords
- touch
- pressure
- control
- light path
- control light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- 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
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04105—Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position
Abstract
The invention discloses a kind of pressure touch sensing module and display devices.Including：Touch-control light path and elastooptics functional layer, the elastooptics functional layer in response to touch-control pressure and deforming upon makes the touch-control light path change, and disappear in response to touch-control pressure and restoring deformation makes the touch-control light path restore variation；Touch-control light path detector determines the active position of the touch-control pressure according to the touch-control optical path change.The elastooptics functional layer can restore the touch-control light path rapidly after pressure is removed from the screen body, to improve the speed and precision of the display device induction pressure.
Description
Technical field
The present invention relates to display fields, and module and a kind of display device are sensed more particularly to a kind of pressure touch.
Background technology
Traditional pressure sensitive panel, is mostly based on capacitive induction, is usually used in LCM modules.Sense is added in LCM backlights
Answer module, when pressing, small variation occurs for Capacitor parallel plate spacing, by identifying the degree of variation, to judge pressure
Size.But the surface of flexibility AMOLED screen bodies is softer, if using same design, after pressing, it is not easy to be restored to pressing
State before leads to not accurately identify pressure spot, reduces induction efficiency.
Invention content
Based on this, it is necessary to the problem of using capacitive induction causing that pressure spot can not be accurately identified for screen body, carry
Module and display device are sensed for a kind of pressure touch.
A kind of pressure touch sensing module, including：
Touch-control light path and elastooptics functional layer, the elastooptics functional layer is in response to touch-control pressure and deforming upon makes
The touch-control light path changes, and disappears in response to touch-control pressure and restoring deformation makes the touch-control light path restore variation；
Touch-control light path detector determines the active position of the touch-control pressure according to the touch-control optical path change.
According to one embodiment of present invention, the elastooptics functional layer includes being cascading：Light reflects
Layer, elastic apparent material layer, touch-control light path detector；
The touch-control light path is formed in the elastic apparent material layer, and is located at the light reflecting layer and the touch-control
Between light path detector.
According to one embodiment of present invention, the touch-control light path detector setting is non-straight in the elastic apparent material layer
It connects on the side surface for responding the touch-control pressure.
According to one embodiment of present invention, the elastic apparent material layer is transparent silicon glue-line.
According to one embodiment of present invention, the touch-control light path detector is light sensor.
According to one embodiment of present invention, further include：Flexibly support touch-control light path detector or elastooptics function
The supporter of layer.
According to one embodiment of present invention, the supporter includes the support membrane and foam being stacked.
According to one embodiment of present invention, further include：
Light emitters are set to the initiating terminal of the touch-control light path, are sent out from the initiating terminal into the touch-control light path
Penetrate the light that can be detected by the touch-control light path detection module.
According to one embodiment of present invention, the light emitters are provided with multiple light output ends, the multiple light
Line output terminal is set gradually in the end of the elastic light path layer along the length direction of the elastic light path layer.
According to one embodiment of present invention, the light emitters are infrared light generator.
One embodiment of the present of invention also provides a kind of display device, including display module, and is integrated in the display mould
Pressure touch in group senses module；The wherein described pressure touch senses module：Touch-control light path and elastooptics functional layer,
The elastooptics functional layer is in response to touch-control pressure and deforming upon makes the touch-control light path change, and in response to touch-control
Pressure disappears and restoring deformation makes the touch-control light path restore variation；
Touch-control light path detector determines the active position of the touch-control pressure according to the touch-control optical path change.
In pressure touch provided by the invention sensing module and display device, since elastooptics functional layer can be in response to
Touch-control pressure and deforming upon makes the touch-control light path change, and disappear in response to touch-control pressure and restore deformation make it is described
Touch-control light path restores variation；Touch-control light path detector can determine the effect of the touch-control pressure according to the touch-control optical path change
Position.Therefore the position of pressure touch can be determined by way of light information variation, sensing in touch-control light path to make
The precision for obtaining touch-control sensing is very high；And elastooptics functional layer itself has quick deformation and restores the ability of deformation, by
This can improve the speed of response.
Description of the drawings
Fig. 1 is that pressure touch provided in an embodiment of the present invention senses the sectional view of module under natural conditions；
Fig. 2 is that the pressure touch provided in an embodiment of the present invention senses the vertical view of module under natural conditions；
Fig. 3 is that the pressure touch provided in an embodiment of the present invention senses the sectional view after module is pressurized；
Fig. 4 is that the pressure touch provided in an embodiment of the present invention senses the vertical view after module is pressurized；
Fig. 5 is that the pressure touch sensing module provided in an embodiment of the present invention removes the sectional view after pressure；
Fig. 6 is the schematic diagram of display device provided in an embodiment of the present invention.
Main element symbol description
Display device 10
Cover board 100
Shield body 110
Supporter 120
Support membrane 121
Foam 122
Elastooptics functional layer 130
Elastic apparent material layer 131
Light sensor 132
Light reflecting layer 133
Light emitters 140
Light output end 141
Mobile terminal 20
Flexible PCB 200
Specific implementation mode
In order to make goal of the invention, technical solution and the technique effect of the present invention be more clearly understood, below in conjunction with attached drawing pair
Specific embodiments of the present invention are described.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention,
It is not intended to limit the present invention.
Fig. 1 is referred to, this hair embodiment provides a kind of pressure touch sensing module, and it is main which senses module
Including touch-control light path, elastooptics functional layer 130 and touch-control light path detector.Pressure touch sensing module is applicable to touch-control
In the electronic terminal product of operation.A kind of relatively broad application is used on display screen and realizes pressure touch (3d-
Touch), representative product includes the mobile phone products such as iphone6s, iphone7；It is touched in addition it can be applied to pressure
The keyboard of control formula, game paddle etc. field, are not limited solely to be integrated on display screen and use.
In order to make it easy to understand, sensing module to pressure touch by taking display screen as an example in a kind of embodiment shown in Fig. 1
It is introduced, while also showing cover board 100, specifically when in use by applying pressure to cover board 100, pressure touch senses mould
Group can perceive pressure position, in this way on the basis of the position detection of existing capacitance touch screen, additionally provide pressure position
Set detection；Its cover plate 100 can be easy to happen the flexible material of deformation, can also be that stress and deformation degree is smaller
Rigid material is made.
In one embodiment, module is sensed under the non-pressure active state by touch-control with reference to pressure touch shown in FIG. 1
Sectional view, elastooptics functional layer 130 include elastic apparent material layer and light reflecting layer, wherein light reflecting layer 133,
Elastic apparent material layer 131, touch-control light path detector 132 are cascading.Touch-control light path is formed in elastic apparent material layer
In 131, and between light reflecting layer 133 and touch-control light path detector 132, because elastic apparent material layer 131 can be guide-lighting,
Light reflecting layer 133 is capable of reflecting light line, and touch-control light path detector 132 can be with light sensing information, therefore in no pressure touch-control
In the state of, the light information that touch-control light path detector 132 senses should be uniform, can refer to herein shown in Fig. 2
Pressure touch senses vertical view of the module under non-touch governor pressure active state.Vertical lines shown in Fig. 2 are examined for touch-control light path
The signal for the light information that device 132 senses is surveyed, light information is uniformly propagated in touch-control light path at this time.
Light information comes from light emitters 140, and with reference to figure 1, Fig. 3, Fig. 5, light emitters 140 are arranged in touch-control light
The initiating terminal on road, by taking product structure shown in Fig. 2 as an example, the left end of pressure touch sensing module is the starting of touch-control light path
End, light emitters 140 select infrared light generator, and the infrared light generated senses the left end of module via tactile with pressure touch
The right side for controlling light path picture diagram is propagated, in order to ensure the homogeneity that infrared light is propagated in touch-control light path, by light emitters 140
Multiple light output ends 141 are configured to, multiple light output ends 141 (are schemed along the length direction of elastic apparent material layer 131
1, vertical shown in 3,5) it sets gradually.Output end 141 and the surface crosswise of elastic apparent material layer 131 are arranged.Output end 141
Light is injected to elastic apparent material layer 131.The light that output end 141 emits can not be with the table of elastic apparent material layer 131
Face is parallel, so that light can reflect at the interface of elastic apparent material layer 131.
When pressure touch sensing module is under pressure the effect of touch-control, with reference to figure 3, cover board 100, elastic apparent material layer
131,133 equal stress of light reflecting layer deforms upon, and touch-control light path is thus made also to deform upon, the touch-control light shown in Fig. 3
The vertical lines that signal light is propagated shown in the broken line and Fig. 4 of light propagation are illustrated to can be seen that in pressure touch in road
Position at light propagation more collect together cluster, this light information can identify by touch-control light path detector 132, so that it is determined that pressure
The position of power touch-control.
When the pressure touch that pressure touch sensing module is subject to disappears, with reference to figure 5, cover board 100, elastic apparent material layer
131, deformation is gradually restored in light reflecting layer 133, so that touch-control light path is also gradually restored deformation, touch-control is shown from Fig. 5
The vertical lines that the signal light of signal light is propagated in pipeline broken line and Fig. 6 kind displayings is propagated can be seen that pressure above-mentioned
The position of power touch-control, pressure touch disappearance after, with cover board 100, elastic apparent material layer 131, light reflecting layer 133 by
Power restores deformation, and light transmission industry returns uniform.
With reference to figure 1, touch-control light path detector 132 is arranged in the indirect response touch-control pressure of elastic apparent material layer 131
On one side surface, with this correspondingly, light reflecting layer 133 is then provided on another side surface of elastic apparent material layer 131.
Wherein, a side surface of " indirect response " refers to：When touch-control pressure is applied on transparent material layer 131, transparent material layer
131 sides mutually close with the force application location of touch-control pressure, in other words when touch-control pressure is applied on transparent material layer 131,
The side of 131 deformation degree bigger of transparent material layer.Elastic apparent material layer 131 is transparent silicon glue-line, touch-control light path detector
132 be light sensor.
Further include the supporter 120 for flexibly supporting touch-control light path detector 132 in addition, with reference to figure 1, supporter 120 includes
It is direct that the support membrane 121 and foam 122 being stacked, wherein support membrane 121 are used for and flexibly support touch-control light path detector 132
Contact, foam 122 are used to connect the installation position of support membrane 121 and entire pressure touch sensing module.Support membrane 121 can select
Take polyimides to be made, and foam 122 have elasticity it is good, light-weight, quickly pressure-sensitive fixation, it is easy to use, bending freely, volume
The features such as ultra-thin, dependable performance.
In one embodiment, touch-control light path and elastooptics functional layer 130 are configured as non-same layer setting, elastooptics work(
Ergosphere 130 is only that touch-control light path provides a supporting role, and elastooptics functional layer 130 itself need not have transparent or guide-lighting
Characteristic, be necessary to ensure that touch-control light path is that stress is deformable at this time, in this embodiment, more preferable elastooptics function
The elasticity modulus of layer 130 is more than the material for forming touch-control light path, and thus elastooptics functional layer 130 can assist touch-control light path extensive
Complex deformation makes pressure touch sensing module can be with quick response.
In one embodiment, touch-control light path detector 132 is a kind of photosensitive element and photosensitive element can be identified
Processor, after pressure touch occurs, the photosensitive degree of photosensitive element is different from non-touch-control position at corresponding position, processing
Thus, it is possible to identify position of touch for device.
In one embodiment, the light reflecting layer 133 in elastooptics functional layer 130 is arranged in elastic apparent material layer
On one side surface of 131 indirect response touch-control pressure, and light reflecting layer 132 is then arranged in elastic apparent material layer 132
The other side.
In one embodiment, elastic apparent material layer 131 can also select the material other than transparent silica gel to be made, either
" translucent " but it still is able to play the role of guide-lighting, the material to form the touch-control light path is made, then not saturating to elasticity at this
The material selection of bright material layer 131 makes stringent limitation.Specifically, elastic apparent material layer 131 or OCA glue, or
Person's PVC material.Above-mentioned material all has good elasticity while having light conductivity, and being capable of fast quick-recovery shape.
In one embodiment, light emitters 140 can be not provided with, are especially applied to pressure touch sensing module
When in display device, the light that display device is sent out can be utilized in pressure-sensing.
In one embodiment, light emitters 140 or ultraviolet light generator.Infrared light generator and ultraviolet light hair
The infrared light and ultraviolet light of raw device transmitting are black light, can be integrated in display equipment to avoid by touch-control pressure-sensing module
Optical crosstalk is showed when upper use, does not influence display quality.
In one embodiment, light emitters 140 could be provided as the entirety of uniformly light-emitting, without marking off multiple light
Line output terminal 141 can be in the case of necessary the guide frame of its Design guidance light direction.
In the above embodiment, due to elastooptics functional layer 130 can in response to touch-control pressure and deforming upon makes
The touch-control light path changes, and disappears in response to touch-control pressure and restoring deformation makes the touch-control light path restore variation；It touches
Control light path detector 132 can determine the active position of the touch-control pressure according to the touch-control optical path change.Therefore can lead to
The mode that light information changes in sensing touch-control light path is crossed to determine the position of pressure touch, so that touch-control sensing is accurate
Degree is very high；And elastooptics functional layer 130 itself has quick deformation and restores the ability of deformation, it is possible thereby to improve response
Rate.
In above-mentioned embodiment, since touch-control light path is formed in elastic apparent material layer 131, and it is located at light
Between reflecting layer 133 and touch-control light path detector 132.Because elastic apparent material layer 131 itself has elasticity, so the present embodiment
Pressure touch sensing module be particularly suited for integration on flexible screen body, compared to capacitive form pressure touch sense module
It says, the disposable ability for bending and bending repeatedly of pressure touch sensing module reply of the present embodiment is all more outstanding.
In the above embodiment, light emitters 140 are provided with multiple light output ends 141, multiple light output ends
141 set gradually in the end of the elastic light path layer 131 along the length direction of the elastic light path layer 131, intensive in this way
Set-up mode can make the usable floor area of light covering pressure touch sensing module that output end 141 emits, while it is intensive
Light outlet line can increase more opticpaths, with the sensitivity of enhancing induction.
In the above embodiment, by the setting of support membrane 121 and foam 122, pressure touch is made to sense module in side
Just while being suspended on the terminal devices such as display device outside, the ability that touch-control light path restores deformation is also further improved.
In another embodiment, a kind of display device, including display module are also provided, and are integrated in the display module
Pressure touch sense module；The wherein described pressure touch senses any middle choosing that module specifically can be in embodiment of above
It takes, therefore it also has all advantages of pressure above touch-control sensing module.Specifically, with reference to mobile terminal shown in fig. 6, pressure
Light emitters 140 in power touch-control sensing module can be tied on flexible PCB 200.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.On the contrary, when element is referred to as " directly existing " another element "upper",
There is no intermediary elements.Term as used herein " vertically ", " horizontal ", "left", "right" and similar statement are
For illustrative purposes.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (11)
1. a kind of pressure touch senses module, which is characterized in that including：
Touch-control light path and elastooptics functional layer (130), the elastooptics functional layer (130) occur in response to touch-control pressure
Deformation makes the touch-control light path change, and disappears in response to touch-control pressure and restoring deformation makes the touch-control light path restore to become
Change；
Touch-control light path detector (132) determines the active position of the touch-control pressure according to the touch-control optical path change.
2. pressure touch according to claim 1 senses module, which is characterized in that
The elastooptics functional layer (130) includes being cascading：Light reflecting layer (133), elastic apparent material layer
(131), touch-control light path detector；
The touch-control light path is formed in the elastic apparent material layer (131), and is located at the light reflecting layer (133) and institute
It states between touch-control light path detector (132).
3. pressure touch according to claim 2 senses module, which is characterized in that
Touch-control light path detector (132) setting is in the indirect response touch-control pressure of the elastic apparent material layer (131)
On one side surface of power.
4. pressure touch according to claim 2 senses module, it is characterised in that：
The elastic apparent material layer (131) is transparent silicon glue-line.
5. pressure touch according to claim 1 senses module, which is characterized in that
The touch-control light path detector (132) is light sensor.
6. pressure touch according to claim 1 senses module, which is characterized in that
Further include：Flexibly support touch-control light path detector (132) or the supporter (120) of elastooptics functional layer (130).
7. pressure touch according to claim 6 senses module, which is characterized in that
The supporter (120) includes the support membrane (121) being stacked and foam (122).
8. pressure touch according to claim 1 senses module, which is characterized in that further include：
Light emitters (140) are set to the initiating terminal of the touch-control light path, are sent out from the initiating terminal into the touch-control light path
Penetrate the light that can be detected by the touch-control light path detection module.
9. wanting the pressure touch described in 8 to sense module according to right, which is characterized in that the light emitters (140) are provided with
Multiple light output ends (141), the multiple light output end (141) is in the end of the elastic light path layer (131) along institute
The length direction for stating elastic light path layer (131) is set gradually.
10. pressure touch according to claim 9 senses module, which is characterized in that
The light emitters (140) are infrared light generator.
11. a kind of display device, which is characterized in that including display module, and the pressure touch that is integrated in the display module
Sense module；The wherein described pressure touch senses module：Touch-control light path and elastooptics functional layer (130), the elasticity
Optical functional layer (130) is in response to touch-control pressure and deforming upon makes the touch-control light path change, and in response to touch-control pressure
Power disappears and restoring deformation makes the touch-control light path restore variation；
Touch-control light path detector determines the active position of the touch-control pressure according to the touch-control optical path change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810054692.6A CN108287632A (en) | 2018-01-19 | 2018-01-19 | Pressure touch senses module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810054692.6A CN108287632A (en) | 2018-01-19 | 2018-01-19 | Pressure touch senses module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108287632A true CN108287632A (en) | 2018-07-17 |
Family
ID=62835280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810054692.6A Pending CN108287632A (en) | 2018-01-19 | 2018-01-19 | Pressure touch senses module and display device |
Country Status (1)
| Country | Link |
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| CN (1) | CN108287632A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101467121A (en) * | 2005-12-30 | 2009-06-24 | 弗莱特弗罗格实验公司 | Optical touch pad with multilayer waveguide |
| CN101821703A (en) * | 2007-08-03 | 2010-09-01 | 感知像素股份有限公司 | Multi-touch sensing through frustrated total internal reflection |
| CN102609138A (en) * | 2011-02-03 | 2012-07-25 | 微软公司 | Touch-pressure sensing in a display panel |
-
2018
- 2018-01-19 CN CN201810054692.6A patent/CN108287632A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101467121A (en) * | 2005-12-30 | 2009-06-24 | 弗莱特弗罗格实验公司 | Optical touch pad with multilayer waveguide |
| CN101821703A (en) * | 2007-08-03 | 2010-09-01 | 感知像素股份有限公司 | Multi-touch sensing through frustrated total internal reflection |
| CN102609138A (en) * | 2011-02-03 | 2012-07-25 | 微软公司 | Touch-pressure sensing in a display panel |
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Application publication date: 20180717 |