CN101430441A - Touch control LCD device - Google Patents
Touch control LCD device Download PDFInfo
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- CN101430441A CN101430441A CNA2007101242898A CN200710124289A CN101430441A CN 101430441 A CN101430441 A CN 101430441A CN A2007101242898 A CNA2007101242898 A CN A2007101242898A CN 200710124289 A CN200710124289 A CN 200710124289A CN 101430441 A CN101430441 A CN 101430441A
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Abstract
The invention provides a touch-control liquid crystal display device. The touch-control liquid crystal display device comprises a liquid crystal display panel which is provided with a display surface; the display surface is provided with at least one pinger, at least one sound wave reflection stripe unit and at least one sound wave receiver. The at least one pinger is used for emitting the sound wave; the at least one sound wave reflection stripe unit is used for reflecting the sound wave emitted by the at least one pinger into the sound waves spreading along a plurality of paths; the at least one sound wave receiver is used for receiving the sound waves spread by a plurality of paths. The touch-control liquid crystal display device has the advantages of thin thickness, light weight and excellent display effect.
Description
Technical field
The present invention relates to a kind of touch control liquid crystal display device.
Background technology
In recent years,, have the touch control display apparatus, particularly touch control liquid crystal display device of touch-screen, be applied to more and more widely in production and the life with user-friendly for operation, simplicity development.Because the user can directly contact touch control liquid crystal display device with input information with hand or other object, thereby minimizing even elimination user are to other input equipment, as the dependence of keyboard, mouse, telepilot etc., user friendly greatly operation.
Current, touch-screen generally includes polytypes such as resistor-type, capacitor type, acoustic wave type, infra red type, it is generally rectangle transparent panel form, and adopt the mode of piling up to be arranged on display surface one side of liquid crystal indicator, and be connected to liquid crystal indicator and control corresponding device, thereby realize touch display function by flexible circuit board.
But in the touch control liquid crystal display device of above-mentioned stacked structure, touch-screen and liquid crystal indicator need to make respectively, and then are bonded together, and its manufacturing cost is higher.Touch-screen is bonded in the display surface of liquid crystal indicator usually by a bonding coat, this touch-screen and bonding coat increase the thickness of touch control liquid crystal display device and weight.Simultaneously, because this touch-screen and bonding coat have optical effects such as absorption, refraction and reflection to light, the light transmittance of liquid crystal indicator is reduced, and easily produce optical interference, cause display image distortion or variable color, reduce the display effect of touch control liquid crystal display device.
Summary of the invention
Prior art touch control liquid crystal display device thickness is big in order to solve, weight is big and the problem of display effect difference, is necessary to provide a kind of thin thickness, in light weight and touch control liquid crystal display device that display effect is good.
A kind of touch control liquid crystal display device, it comprises a display panels, and this display panels has a display surface, and this display surface is provided with at least one pinger, at least one acoustic reflection striped group and at least one acoustic receiver.This at least one pinger is used to launch sound wave, this at least one acoustic reflection striped group is used for this at least one pinger emitting sound wave is reflected into the sound wave of propagating along mulitpath, and this at least one acoustic receiver is used to receive the sound wave that this is propagated along mulitpath.
A kind of touch control liquid crystal display device, it comprises a display panels, this display panels has a display surface, the edge of at least two opposite sides of this display surface is provided with an acoustic reflection striped group respectively, this relative acoustic reflection striped group end is provided with a pinger and an acoustic receiver respectively, and this pinger emitting sound wave is received by this acoustic receiver behind these two the relative acoustic reflection streak reflexs successively.
Compared to prior art, the display surface of touch control liquid crystal display device of the present invention is provided with pinger, acoustic reflection striped group and acoustic receiver, this pinger emitting sound wave is reflected into the sound wave of propagating along mulitpath by this acoustic reflection striped group, and received by this acoustic receiver, can realize the touch-control positioning function.This touch control liquid crystal display device omits touch-screen and bonding coat, has little, the lightweight advantage of thickness, helps the frivolous development of liquid crystal indicator.Simultaneously, owing to phenomenons such as the light absorption of avoiding causing, reflection, refractions by touch-screen and bonding coat, the transmittance height of this touch control liquid crystal display device, and have good display effect.
Description of drawings
Fig. 1 is the side structure synoptic diagram of touch control liquid crystal display device first embodiment of the present invention.
Fig. 2 is the planar structure synoptic diagram of touch control liquid crystal display device shown in Figure 1.
Fig. 3 is the touch point coordinate localization method synoptic diagram of touch control liquid crystal display device shown in Figure 1.
Fig. 4 is the side structure synoptic diagram of touch control liquid crystal display device second embodiment of the present invention.
Fig. 5 is the planar structure synoptic diagram of touch control liquid crystal display device shown in Figure 4.
Embodiment
Seeing also Fig. 1, is the side structure synoptic diagram of touch control liquid crystal display device first embodiment of the present invention.This touch control liquid crystal display device 1 comprises that a touch control LCD (Liquid Crystal Display) panel 10 and provides the module backlight 18 of illumination for this touch control LCD (Liquid Crystal Display) panel 10.
This touch control LCD (Liquid Crystal Display) panel 10 comprises that one first substrate 11, one second substrate 12 and are clipped in the liquid crystal layer 13 between this first substrate 11 and this second substrate 12.
This first substrate 11 and this second substrate 12 all are transparent glass substrates.One first polaroid 111 is set between this first substrate 11 and this liquid crystal layer 13.The display surface that this first substrate 11 is this touch control liquid crystal display device 1 away from these liquid crystal layer 13 1 sides (not indicating), this display surface are provided with a plurality of acoustic wave transducers (not indicating).One second polaroid 121 is set between this second substrate 12 and this liquid crystal layer 13.
Seeing also Fig. 2, is the planar structure synoptic diagram of touch control liquid crystal display device 1 shown in Figure 1.The display surface of this first substrate 11 further is provided with four tones of standard Chinese pronunciation wave reflection striped group 151,152,153,154.Each acoustic reflection striped group 151,152,153,154 comprises that all a plurality of spacings are by loosening to reflection strip (indicating) intensive and that be arranged in parallel.These four tones of standard Chinese pronunciation wave reflection striped group 151,152,153,154 correspondences are arranged on the four side of these first substrate, 11 display surfaces.As shown in Figure 2 in the cartesian coordinate system, this first, the 3rd acoustic reflection striped group 151,153 is symmetrical arranged and arranges along X-direction, and each acoustic reflection striped and X-direction are angled, as 45 °.This second, fourth sound wave reflection striped group 152,154 is symmetrical arranged and arrange along Y direction, and each acoustic reflection striped and Y direction are angled, as 45 °.
These a plurality of acoustic wave transducers comprise one first pinger 141, one first acoustic receiver 142, a second sound wave launcher 143 and one second acoustic receiver 144.This first pinger 141 is arranged on the reflection strip of this first acoustic reflection striped group 151 and arranges loose end.This second sound wave launcher 143 is arranged on the reflection strip of this second sound wave reflection striped group 152 and arranges loose end.This first acoustic receiver 142 is arranged on the reflection strip of the 3rd acoustic reflection striped group 153 and arranges loose end, and this second acoustic receiver 144 is arranged on the reflection strip of this fourth sound wave reflection striped group 154 and arranges loose end.
Seeing also Fig. 3, is the touch-control localization method synoptic diagram of this touch control LCD (Liquid Crystal Display) panel 10.Wherein transverse axis is time coordinate T, the longitudinal axis is intensity of acoustic wave coordinate S, three curves are represented this respectively: the emission acoustic waveform a of first, second pinger 141,143, the reception acoustic waveform b of this first, second acoustic receiver 142,144 and is with reference to acoustic waveform c.
Below in conjunction with Fig. 2 and Fig. 3, be example with the X coordinate determination methods of touch point, introduce the touch-control coordinate location method of this touch control LCD (Liquid Crystal Display) panel 10.
At a time, this first pinger 141 is launched a branch of high energy pulse sound wave a in the other direction and is propagated on this first substrate 11 surfaces along X-axis.This pulsed sound a by propagation distance by near to far passing through each reflection strip of this reflection strip group 151 successively, because each reflection strip is all angled with this sonic propagation direction, when then this sound wave a arrives each reflection strip, have acoustic wave segment a to be reflected respectively and along Y direction on these first substrate, 11 surfaces along multiple propagated, form the plane sound wave of propagating along Y direction.When this plane sound wave successively arrives the 3rd acoustic reflection striped group 153, the reflection strip of the 3rd acoustic reflection striped group 153 correspondences will be somebody's turn to do the plane sound wave of propagating along Y direction and be reflected into along the sound wave of X-axis forward-propagating, and this first acoustic receiver 142 that is set at its end receives successively.
Because distance increases gradually between the reflection strip of this first, the 3rd acoustic reflection striped group 151,153 and this first, second pinger 141,142, the reflection strip reflected sound wave propagation distance of contiguous this first pinger 141, first acoustic receiver 142 is short, the travel-time weak point is early received by this first acoustic receiver 142 simultaneously.Reflection strip reflected sound wave propagation distance away from this first pinger 141, first acoustic receiver 142 is long, and the travel-time is long, later by these first acoustic receiver, 142 receptions simultaneously.Thereby this first acoustic receiver 142 is at the sound wave of the landlocked continued access receipts of a long period section by these a plurality of acoustic reflection streak reflexs, and the corresponding X coordinate of the corresponding reflection strip of acoustic waveform of each T reception constantly, the corresponding relation of formation time T and X coordinate.
When this touch control LCD (Liquid Crystal Display) panel 10 did not receive touch control operation, undisturbed along the plane sound wave that propagate on these first substrate, 11 surfaces, the acoustic waveform that this first acoustic receiver 142 receives was similar with this reference waveform c.When these touch control LCD (Liquid Crystal Display) panel 10 surperficial arbitrary contacts 17 of an object touch-control, the acoustic wave energy of this contact 17 of process is absorbed by this object, and then this first acoustic receiver 142 diminishes at the acoustic wave energy that correspondence receives constantly, as receiving the indentation, there of acoustic waveform b.By comparing actual reception acoustic waveform b and,, can judging the X-axis coordinate of this contact 17 according to the corresponding relation of time of reception T and X coordinate with reference to acoustic waveform c.
The Y-axis coordinate determination methods of this contact 17 is similar with X-axis coordinate determination methods, and sound wave is by these second sound wave launcher 143 emissions, through being received by this second acoustic receiver 144 after these reflection strip group 152,154 continuous reflection.
By said method, finally can determine the coordinate of this contact 17, and carry out relevant operation according to its coordinate.
Compared to prior art, the four side of first substrate 11 of this touch control liquid crystal display device 1 is provided with reflection strip group 151,152,513,154 respectively, and pinger 141,143 and acoustic receiver 142,144 are set in these first substrate, 11 corners, make sound wave propagate and finish the touch-control positioning function on these first substrate, 11 surfaces.This touch control liquid crystal display device 1 does not need extra touch-screen, and its thickness is little in light weight, helps the frivolous development of liquid crystal indicator 1.Simultaneously, because avoid using touch-screen and bonding coat, reduce phenomenons such as light absorption, refraction, reflection, its light loss is few, the transmittance height, and this touch control liquid crystal display device 1 has good display effect.
See also Fig. 4 and Fig. 5, Fig. 4 is the side structure synoptic diagram of touch control liquid crystal display device second embodiment of the present invention, and Fig. 5 is the planar structure synoptic diagram of touch control liquid crystal display device shown in Figure 4.This touch control liquid crystal display device 2 and this touch control liquid crystal display device 1 structural similarity, its key distinction is: one first polaroid 211 is arranged on the surface of first substrate 21 away from liquid crystal layer 23 1 sides, and one second polaroid 221 is arranged on the surface of second substrate 22 away from these liquid crystal layer 23 1 sides.First, second pinger 241,243 and first, second acoustic receiver 242,244 are arranged on this first polaroid, 211 surfaces, and these first, second, third, fourth acoustic reflection striped group, 251,252,253,254 correspondences are arranged on the four side of this first polaroid 211.
In other deformable embodiment, pinger and acoustic receiver all can be one, but also spaced set of a plurality of acoustic reflection stripeds of every group of acoustic reflection striped group.This pinger is launched a sound wave, and be divided into the sound wave that transmits along adjacent both sides by devices such as partial wave unit devices, received by this acoustic receiver by the reflection strip group of opposite side reflection back in succession, this acoustic receiver is judged the respective paths of the sonic transmissions in this moment according to the time that receives sound wave, and positions judgement according to this path.This design further reduces element, thereby simplified structure, reduces cost.
Claims (10)
1. touch control liquid crystal display device, it comprises a display panels, this display panels has a display surface, it is characterized in that: this display surface is provided with at least one pinger, at least one acoustic reflection striped group and at least one acoustic receiver, this at least one pinger is used to launch sound wave, this at least one acoustic reflection striped group is used for this at least one pinger emitting sound wave is reflected into the sound wave of propagating along mulitpath, and this at least one acoustic receiver is used to receive the sound wave that this is propagated along mulitpath.
2. touch control liquid crystal display device as claimed in claim 1, it is characterized in that: the sound wave of propagating along these many footpaths was received by this at least one acoustic receiver in a plurality of moment of correspondence, thereby form the corresponding relation of the time of reception and travel path, and according to determining corresponding travel path the time of reception.
3. touch control liquid crystal display device as claimed in claim 1, it is characterized in that: this at least one pinger comprises one first pinger and a second sound wave launcher, this at least one acoustic receiver comprises one first acoustic receiver and one second acoustic receiver, this first pinger emitting sound wave is received by this first acoustic receiver, and this second sound wave launcher emitting sound wave is received by this second acoustic receiver.
4. touch control liquid crystal display device as claimed in claim 3, it is characterized in that: this at least one acoustic reflection striped group comprises one first acoustic reflection striped group, a second sound wave reflection striped group, one the 3rd acoustic reflection striped group and a fourth sound wave reflection striped group, this first acoustic reflection striped group and the 3rd acoustic reflection striped group are oppositely arranged, and this second sound wave reflection striped group and this fourth sound wave reflection striped group are oppositely arranged.
5. touch control liquid crystal display device as claimed in claim 4, it is characterized in that: this first pinger emitting sound wave is propagated along the mulitpath of a first direction at this first substrate surface by this first acoustic reflection striped group reflection back, receive then by the reflection of the 3rd acoustic reflection striped group, and by this first acoustic receiver.
6. touch control liquid crystal display device as claimed in claim 5, it is characterized in that: this second sound wave launcher emitting sound wave is propagated along the mulitpath of a second direction at this first substrate surface by this second sound wave reflection striped group reflection back, then by this fourth sound wave reflection striped group reflection, and by this second acoustic receiver reception, this first direction is perpendicular to this second direction.
7. touch control liquid crystal display device as claimed in claim 1 is characterized in that: this display surface further comprises a polaroid, and this pinger, this acoustic receiver and this acoustic reflection striped group are arranged on the surface of this polaroid.
8. touch control liquid crystal display device, it comprises a display panels, this display panels has a display surface, it is characterized in that: these display surface at least two opposed side edge are provided with an acoustic reflection striped group respectively, this relative acoustic reflection striped group end is provided with a pinger and an acoustic receiver respectively, and this pinger emitting sound wave is received by this acoustic receiver behind this two relative acoustic reflection streak reflex successively.
9. touch control liquid crystal display device as claimed in claim 8 is characterized in that: this display surface is a transparent glass substrate, and this pinger, this acoustic reflection striped group and this acoustic receiver are arranged on this transparent glass substrate surface.
10. touch control liquid crystal display device as claimed in claim 8, it is characterized in that: this display surface comprises that a transparent glass substrate and covers the polaroid of this transparency carrier, and this pinger, this acoustic reflection striped group and this acoustic receiver are arranged on this polaroid surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101242898A CN101430441A (en) | 2007-11-07 | 2007-11-07 | Touch control LCD device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101242898A CN101430441A (en) | 2007-11-07 | 2007-11-07 | Touch control LCD device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101430441A true CN101430441A (en) | 2009-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101242898A Pending CN101430441A (en) | 2007-11-07 | 2007-11-07 | Touch control LCD device |
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| CN (1) | CN101430441A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102819357A (en) * | 2012-08-10 | 2012-12-12 | 江苏物联网研究发展中心 | Low-power consumption light-thin type medium/small-sized sound wave touch screen |
| WO2016029574A1 (en) * | 2014-08-28 | 2016-03-03 | 京东方科技集团股份有限公司 | Touch screen and positioning method thereof, and touch display apparatus |
| CN107608571A (en) * | 2017-09-05 | 2018-01-19 | 捷开通讯(深圳)有限公司 | A kind of sound wave touch control device and terminal |
| CN107818938A (en) * | 2016-09-13 | 2018-03-20 | 台湾积体电路制造股份有限公司 | Delivery system and the method for transporting machine component |
-
2007
- 2007-11-07 CN CNA2007101242898A patent/CN101430441A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102819357A (en) * | 2012-08-10 | 2012-12-12 | 江苏物联网研究发展中心 | Low-power consumption light-thin type medium/small-sized sound wave touch screen |
| CN102819357B (en) * | 2012-08-10 | 2015-10-28 | 中科融通物联科技无锡有限公司 | Low-power consumption light and thin type small-medium size acoustic wave touching screen |
| WO2016029574A1 (en) * | 2014-08-28 | 2016-03-03 | 京东方科技集团股份有限公司 | Touch screen and positioning method thereof, and touch display apparatus |
| US9841845B2 (en) | 2014-08-28 | 2017-12-12 | Boe Technology Group Co., Ltd. | Touch screen, positioning method thereof and touch display device |
| CN107818938A (en) * | 2016-09-13 | 2018-03-20 | 台湾积体电路制造股份有限公司 | Delivery system and the method for transporting machine component |
| CN107608571A (en) * | 2017-09-05 | 2018-01-19 | 捷开通讯(深圳)有限公司 | A kind of sound wave touch control device and terminal |
| WO2019047860A1 (en) * | 2017-09-05 | 2019-03-14 | 惠州Tcl移动通信有限公司 | Acoustic wave touch device and terminal |
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Open date: 20090513 |