CN205230006U - Touch display device - Google Patents
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- CN205230006U CN205230006U CN201521018883.5U CN201521018883U CN205230006U CN 205230006 U CN205230006 U CN 205230006U CN 201521018883 U CN201521018883 U CN 201521018883U CN 205230006 U CN205230006 U CN 205230006U
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Abstract
The utility model relates to a touch display device, including protection apron, touch -sensitive unit and display element, the touch -sensitive unit is used for the response to exert the touch signal on the protection apron, touch display device still includes the forced induction unit, the forced induction unit is including constituting the last conductive electrode layer of examining dynamometric electric capacity inductor, lower conductive electrode layer to and be located the elastic layer between the upper and lower conductive electrode layer, the forced induction unit is used for the response to exert the pressure signal on the protection apron, just the forced induction unit has smooth permeable nature. The utility model discloses a touch operation's pressure signal is acquireed to the mode of monitoring electric capacity, can detect multi -touch pressure signal simultaneously to through introducing the elastic layer between the two -layer conductive electrode layer constituting the electric capacity inductor, utilize it can take place elastic deformation easily under the atress, so as to realizes detecting the sensitive of touch pressure.
Description
Technical field
The utility model relates to touch-control display field, particularly relates to a kind of touch display unit with pressure sensitive function.
Background technology
Touch-screen, because having the advantage such as ease for operation, dirigibility, has become primary human's interactive means of personal mobile communication equipment and integrate information terminal (as mobile phone, panel computer and super notebook computer etc.).Relative to the touch-screen of resistive touch screen and alternate manner, the advantages such as capacitive touch screen is low with cost, structure is simple and durable, are widely used by intelligent terminal gradually.But existing capacitance touch screen is the touch location of perception screen body place plane and operation only, be difficult to the pressure that perception puts on screen surface and change the touch parameter brought.
In order to sense the pressure change of screen surface, dealer is integrated pressure sensor in touch-screen.But existing way mostly can only detect the touch pressure information of single-point.And be difficult to the touch pressure Detection results obtaining high position precision.
Utility model content
Based on this, the utility model aims to provide and a kind ofly can detect multiple point touching pressure signal and the high touch display unit of accuracy of detection.
A kind of touch display unit; comprise cover sheet, touch sensing unit and display unit; described touch sensing unit is for responding to the touch signal put on cover sheet; described touch display unit also comprises pressure sensitive unit; described pressure sensitive unit comprises upper conductive electrode layer, the lower conductive electrode layer of the capacitive sensing device forming detect force; and the elastic layer between upper and lower conductive electrode layer; described pressure sensitive unit is for responding to the pressure signal put on cover sheet, and described pressure sensitive unit has the light property of can pass through.
Wherein in an embodiment, described display unit comprises liquid crystal functional layer and backlight module, described liquid crystal functional layer comprises the upper polaroid, optical filter, liquid crystal layer, substrate and the lower polaroid that set gradually, and described backlight module comprises the upper diffusion sheet set gradually, upper prismatic lens, lower prismatic lens, lower diffusion sheet, light guide plate and reflector plate.
Wherein in an embodiment; described touch sensing unit and display unit are integrated and are arranged; described elastic layer is between cover sheet and display unit; described pressure sensitive unit also comprises the first carrier of the upper conductive electrode layer of carrying and the Second support of the lower conductive electrode layer of carrying; described first carrier and upper conductive electrode layer are between cover sheet and elastic layer, and described Second support and lower conductive electrode layer are between elastic layer and display unit.
Wherein in an embodiment; described touch sensing unit is between cover sheet and display unit; described elastic layer is between touch sensing unit and display unit; described pressure sensitive unit also comprises the first carrier of the upper conductive electrode layer of carrying and the Second support of the lower conductive electrode layer of carrying; described first carrier and upper conductive electrode layer are between cover sheet and touch sensing unit, and described Second support and lower conductive electrode layer are between elastic layer and display unit.
Wherein in an embodiment; described touch sensing unit is between cover sheet and display unit; described elastic layer is between cover sheet and touch sensing unit; described pressure sensitive unit also comprises the first carrier of the upper conductive electrode layer of carrying and the Second support of the lower conductive electrode layer of carrying; described first carrier and upper conductive electrode layer are between cover sheet and elastic layer, and described Second support and lower conductive electrode layer are between elastic layer and display unit.
Wherein in an embodiment; described elastic layer is between the lower polaroid and described backlight module of described liquid crystal functional layer; described pressure sensitive unit also comprises the first carrier of the upper conductive electrode layer of carrying and the Second support of the lower conductive electrode layer of carrying; described first carrier and upper conductive electrode layer are between cover sheet and elastic layer, and described Second support and lower conductive electrode layer are between elastic layer and described backlight module.
Wherein in an embodiment, described upper diffusion sheet, upper prismatic lens, lower prismatic lens or lower diffusion sheet serve as described Second support, and described cover sheet, substrate or lower polaroid serve as described first carrier.
Wherein in an embodiment, described upper polaroid, optical filter or substrate serve as described Second support.
Wherein in an embodiment, described cover sheet serves as described first carrier.
Wherein in an embodiment, the deformable material that described elastic layer comprises matrix and carried by matrix.
Wherein in an embodiment, when described elastic layer is between cover sheet and display unit or between cover sheet and touch sensing unit, described cover sheet serves as described matrix; When described elastic layer is between the lower polaroid and described backlight module of described liquid crystal functional layer, described lower polaroid serves as described matrix.
Wherein in an embodiment, the capacitive sensing device of described detect force is self-capacitance or mutual capacitance inductor.
The utility model obtains the pressure signal of touch operation by the mode of monitoring electric capacity, the capacitive sensing device being configured for pressure signal induction can detect multiple point touching pressure signal simultaneously, and by introducing elastic layer between the two-layer conductive electrode layer forming capacitive sensing device, utilize it easily elastic deformation can occur under stressed, thus the capacitive sensing device of detect force can be made to produce sensitive capacitance variations corresponding to touch pressure, finally realize the Sensitive Detection to touch pressure.
Accompanying drawing explanation
The structural representation of the touch display unit that Fig. 1-10 provides for the different embodiment of the utility model.
The electrode structure schematic diagram of the pressure sensitive unit in the touch display unit that Figure 11-13 provides for the different embodiment of the utility model.
Embodiment
The touch display unit that the utility model provides can as the display terminal with touch interactive form of the type such as mobile phone, panel computer.
Described touch display unit comprises cover sheet, touch sensing unit, display unit and pressure sensitive unit.
Touch sensing unit comprises touch drive electrode and touch sensible electrode.Touching drive electrode and touch sensible electrode can be distributed on same base material, such as, GF structure alleged by industry, GF2 structure etc., or is distributed in two different base materials respectively, such as, GFF structure alleged by industry.In some embodiments in addition, touch drive electrode and touch sensible electrode also can be formed in the lower surface of cover sheet and make cover sheet have the function of capacitive transducer concurrently, and this kind of structure is called OGS structure by industry.In some embodiments in addition, a kind of surface that also can be formed in the substrate fitting in cover sheet in these two kinds of touch control electrode, such as, G1F structure alleged by industry.
Described display unit comprises liquid crystal functional layer and backlight module, described liquid crystal functional layer comprises the upper polaroid, optical filter, liquid crystal layer, substrate and the lower polaroid that set gradually, and described backlight module comprises the upper diffusion sheet set gradually, upper prismatic lens, lower prismatic lens, lower diffusion sheet, light guide plate and reflector plate.Described liquid crystal functional layer also comprises pixel electrode and public electrode for driving liquid crystal layer.The utility model alleged " on ", D score is for the degree close with user in application process relative to touch display unit, relatively near the side of user be " on ", the side relatively away from user is D score.The lower surface of such as cover sheet refers to the side of cover sheet away from user.
In some embodiments in addition, touch drive electrode in touch sensing unit and touch sensible electrode also can be integrated and be arranged in display unit, such as be incorporated into (structure of above-mentioned touch sensing unit is called in-cell structure by industry) in liquid crystal layer, or described touch drive electrode and touch sensible electrode are arranged on (structure of above-mentioned touch sensing unit is called on-cell structure by industry) between polaroid and optical filter.
Described touch drive electrode and touch sensible electrode are for responding to the touch signal put on cover sheet.Described touch signal comprises the contact be parallel on the two-dimensional directional of cover sheet, slide, to pull etc. and touch input signal, even comprises the touch input signal perpendicular to the side (such as bending arc-shaped side edges of shielding) every empty input signal (i.e. suspension touch control signal) or cover sheet edge on cover sheet direction.
Described pressure sensitive unit is for responding to the pressure signal put on cover sheet.Described pressure sensitive unit comprises the upper conductive electrode layer of the capacitive sensing device forming detect force and lower conductive electrode layer, and the elastic layer between upper and lower conductive electrode layer.
The upper conductive electrode layer and the lower conductive electrode layer that form some capacitive sensing devices of detect force are that transparent conductive material is formed, as ITO, ZnO, carbon nano-tube, Graphene etc.; Also can be made up of nontransparent conductive material, by the impact of these conductive electrode layers when now needing the size by controlling conductive material to realize the displaying contents of touch display unit described in eye-observation.Above-mentioned conductive material can be conductive silver paste, development, conducting metal particles or other conductive particle.
Conductive electrode layer in the capacitive sensing device of described detect force is made up of electrod-array; The electrod-array of upper conductive electrode layer and the electrod-array of lower conductive electrode layer can be formed by many separate strip shaped electric poles or by many chains being connected with multiple electrode block or separate block type electrode; There is the intersection region of certain area in the electrod-array of described upper conductive electrode layer and the projection of electrod-array in horizontal two-dimension plane of lower conductive electrode layer, thus forms some capacitive sensing devices that can be used for detect force.
Described pressure sensitive unit also comprises the first carrier of the upper conductive electrode layer of carrying and the Second support of the lower conductive electrode layer of carrying.First carrier, Second support can be made up of independently transparent plate body, such as glass plate, PET plate, PC plate.In certain embodiments; first carrier, Second support also can be served as by other structures in described touch display unit according to the concrete setting position of pressure sensitive unit; such as cover sheet can serve as described first carrier, and described upper diffusion sheet, upper prismatic lens, lower prismatic lens, lower diffusion sheet, upper polaroid, optical filter or substrate all serve as described Second support.
Described elastic layer can produce corresponding elastic compression according to the force value information touched and touch location when being subject on the surface of described touch display unit to touch pressing, and can return to initial state when touch pressing removes Descemet's membrane or return to close to initial state.When described touch display unit is pressed power, in the position of the power of applying, due to elastic layer by compression, the distance formed between the upper conductive electrode layer of capacitive sensing device of detect force and lower conductive electrode layer can reduce, and it reduces degree and applied force value is corresponding relation.Therefore the detection to the touch pressure on touch display unit can be realized by the capacitance variations detecting aforesaid capacitive sensing device.
Particularly, after touch display unit is stressed, the distance between upper conductive electrode layer and lower conductive electrode layer can diminish to some extent along with pressure difference produces.According to the computing formula C=ε S/4 π kd of electric capacity, the capacitance of the capacitive sensing device formed strains greatly mutually.Because touch forces different on touch display unit makes each position of touch display unit can produce corresponding strain, and then produce the change of corresponding d value.Therefore, the capacitance variations information of the some capacitive sensing devices formed in aforesaid pressure sensitive unit in touch display unit and the mutual relationship database by force information of touch display unit can be set up.In actual applications, storer and processor is also comprised in described touch display unit, under the diverse location stored in storer in touch display unit carries out different force value touches, the capacitance variations information of each capacitive sensing device of detect force in touch display unit, processor detects for contrasting touch display unit the capacitance variations information of some capacitive sensing devices and the capacitance variations information of institute's pre-stored that obtain, thus judges the pressure information of touch display unit.Wherein pressure information comprises the size of the power of touch, also can comprise the position of touch force.
In concrete capacitance detecting, similar with capacitance-type touch screen technology, the method from appearance and mutual tolerance can be divided.In appearance method, the electrode ground connection in upper conductive electrode layer or lower conductive electrode layer, when touching press pressure and detecting, the electric capacity between the electrode of the electrode of the conductive electrode layer that touch display unit direct-detection is ungrounded and the conductive electrode layer of ground connection.In addition, can extend into further " class from hold method " in these class methods, namely aforementioned said differing with the electrode of the conductive electrode layer on ground with touch display unit is decided to be ground connection, also can be to be in other fixed potential a certain.Now, the electric capacity of touch display unit institute direct-detection is the electric capacity of some capacitive transducers that conductive electrode and lower conductive electrode are formed.In appearance method or " class is from the method held ", upper conductive electrode layer can be driven by single-ended inducing method.
In the detection method of mutual tolerance, touch display unit can by driving the electrode of upper conductive electrode layer and carrying out sensing signal by the electrode of lower conductive electrode layer, or touch display unit can by driving the electrode of conductive electrode layer down and carrying out sensing signal by the electrode of upper conductive electrode layer.In these class methods, the electric capacity of touch display unit institute direct-detection is the electric capacity of some capacitive transducers that conductive electrode and lower conductive electrode are formed.Further, in the detection method of mutual tolerance, touch display unit can be gone up a certain electrode in conductive electrode layer by driving successively and carry out sensing signal by other electrode that drive electrode in upper conductive electrode layer is other, and the electrode of lower conductive electrode layer for reference only electrode.Now, the electric capacity of touch display unit institute direct-detection is the drive electrode of upper conductive electrode layer and the capacitance signal of induction electrode, but this capacitance signal embodies the capacitance information between the electrode of conductive electrode layer and the electrode of lower conductive electrode layer indirectly.When touch display unit is by when touching pressing, capacitance information between the electrode of upper conductive electrode layer and the electrode of lower conductive electrode layer changes, and the drive electrode in the upper conductive electrode layer that touch display unit detects and the electric capacity between induction electrode change simultaneously.Wherein, during aforesaid mutual tolerance detects, described upper conductive electrode layer can be substituted by lower conductive electrode layer, namely descends the electrode of conductive electrode layer as drive electrode and induction electrode, goes up the reference electrode of electrode as lower conductive electrode layer of conductive electrode layer simultaneously.
The deformable material that described elastic layer comprises matrix and carried by matrix.Described matrix can be made up of independently transparent plate body, such as glass plate, PET plate, PC plate.In certain embodiments, matrix also can be served as by other structures in described touch display unit according to the concrete setting position of pressure sensitive unit, such as when described elastic layer is between cover sheet and display unit or between cover sheet and touch sensing unit, described cover sheet can serve as described matrix; When described elastic layer is between the lower polaroid and described backlight module of described liquid crystal functional layer, described lower polaroid can serve as described matrix.
Described deformable material can be layer of silica gel, rubber layer, acrylic acid series glue-line, sol layer.The basic structure of deformable material can be column, centrum, Rotary-table, hemisphere or random blocks etc.Deformable material also can be made up of porosint, as being foam sponge layer, sponge plastics layer, porous polyester layer, porous polypropylene layer, foam glue-line etc.
Deformable material, in macroscopically optically transparent characteristic, can make the light therethrough in light display unit, be shown as prerequisite not hinder the content of described touch display unit.When deformable material is made by silica gel, rubber, acrylic acid series glue, colloidal sol etc., deformable material can be rendered as point-like, the linear structure of array-like, also can be rendered as the structure of whole.When deformable material by nontransparent or trnaslucent materials is formed time, be then rendered as point-like, linear structure and some the size of columnar structure or the width of linear structure between 10-150 micron, height between 1-100 micron.
In certain embodiments; described touch sensing unit and display unit are integrated and are arranged; such as; when forming in-cell structure alleged by industry or on-cell structure; or touch sensing unit is combined with cover sheet and arranges when forming OGS structure; described elastic layer is between cover sheet and display unit, and described first carrier and upper conductive electrode layer are between cover sheet and elastic layer, and described Second support and lower conductive electrode layer are between elastic layer and display unit.
In some other embodiments; described touch sensing unit is between cover sheet and display unit; such as, when forming the structure such as GF structure, GF2 structure, GFF structure, G1F structure alleged by industry; described elastic layer is between touch sensing unit and display unit; described first carrier and upper conductive electrode layer are between cover sheet and touch sensing unit, and described Second support and lower conductive electrode layer are between elastic layer and display unit.
In certain embodiments; described touch sensing unit is between cover sheet and display unit; such as, when forming the structure such as GF structure, GF2 structure, GFF structure, G1F structure alleged by industry; described elastic layer is between cover sheet and touch sensing unit; described first carrier and upper conductive electrode layer are between cover sheet and elastic layer, and described Second support and lower conductive electrode layer are between elastic layer and display unit.
In certain embodiments; described elastic layer is between the lower polaroid and described backlight module of described liquid crystal functional layer; described first carrier and upper conductive electrode layer are between cover sheet and elastic layer, and described Second support and lower conductive electrode layer are between elastic layer and described backlight module.
Again embodiments more of the present utility model are described further below with reference to accompanying drawing.
As shown in Figure 1, the touch display unit that the utility model first embodiment provides comprises cover sheet 10, pressure sensitive unit 20, touch sensing unit 40 and display unit 30.Wherein touch sensing unit 40 and display unit 30 are integrated and are arranged.Pressure sensitive unit 20 comprises conductive electrode layer 21, lower conductive electrode layer 23 and the elastic layer 22 between upper conductive electrode layer 21, lower conductive electrode layer 23.Upper conductive electrode layer 21 is arranged at the lower surface of cover sheet 10, and the first carrier also namely going up conductive electrode layer 21 is served as by cover sheet 10.Lower conductive electrode layer 23 is carried by an independently Second support 230, and engages with display unit 30 by optical cement layer 301.
As shown in Figure 2, similar in the touch display unit that the utility model second embodiment provides and the first embodiment, both not something in common be in the first embodiment, lower conductive electrode layer 23 is formed in the upper surface of Second support 230, and in the second embodiment, lower conductive electrode layer 23 is formed in the lower surface of Second support 230.
As shown in Figure 3, also similar in the touch display unit that the utility model the 3rd embodiment provides and the first embodiment, comprises cover sheet 10, pressure sensitive unit 20, touch sensing unit 40 and display unit 30.Wherein touch sensing unit 40 and display unit 30 are integrated and are arranged.Difference is, the Second support of the lower conductive electrode layer 23 in the present embodiment is served as by the dependency structure in display unit 30, and such as, lower conductive electrode layer 23 is arranged on the surface of polaroid.
As shown in Figure 4, similar in the touch display unit that the utility model the 4th embodiment provides and the 3rd embodiment, difference is, lower conductive electrode layer 23 in the present embodiment is arranged between the upper polaroid 31 of display unit 30 and optical filter 32, and the Second support of lower conductive electrode layer 23 is served as by optical filter 32.
As shown in Figure 5, the touch display unit that the utility model the 5th embodiment provides comprises cover sheet 10, pressure sensitive unit 20, touch sensing unit 40 and display unit 30.Pressure sensitive unit 20 comprises conductive electrode layer 21, lower conductive electrode layer 23 and the elastic layer 22 between upper conductive electrode layer 21, lower conductive electrode layer 23.Upper conductive electrode layer 21 is arranged at the lower surface of cover sheet 10, and the first carrier also namely going up conductive electrode layer 21 is served as by cover sheet 10.Lower conductive electrode layer 23 is carried by an independently Second support 230, and engages with touch sensing unit 40 by optical cement layer (not shown).Touch sensing unit 40 also engages with display unit 30 by other optical cement layer (not shown).
As shown in Figure 6, the touch display unit that the utility model the 6th embodiment provides comprises the cover sheet 10, touch sensing unit 40, pressure sensitive unit 20 and the display unit 30 that set gradually.Pressure sensitive unit 20 comprises conductive electrode layer 21, lower conductive electrode layer 23 and the elastic layer 22 between upper conductive electrode layer 21, lower conductive electrode layer 23.Upper conductive electrode layer 21 is carried by independently one first carrier 210, and engages with touch sensing unit 40 by optical cement layer (not shown).Lower conductive electrode layer 23 is carried by an independently Second support 230, and engages with display unit 30 by optical cement layer 301.
As shown in Figure 7, substantially identical with the 6th embodiment of the touch display unit that the utility model the 7th embodiment provides, difference is, upper conductive electrode layer 21 in the present embodiment, the first carrier is not set separately, but using the relevant base material of the touch electrode in touch sensing unit 40 or induction electrode as the first carrier.
As shown in Figure 8, the touch display unit that the utility model the 8th embodiment provides comprises cover sheet 10, touch sensing unit 40, pressure sensitive unit 20 and display unit 30.Pressure sensitive unit 20 comprises the first carrier 210, upper conductive electrode layer 21, elastic layer 22, lower conductive electrode layer 23 and the Second support 230 that set gradually.Wherein the first carrier 210, upper conductive electrode layer 21 are between cover sheet 10 and touch sensing unit 40.Second support 230 engages with display unit 30 by optical cement layer 301.Upper conductive electrode layer 21 and cover sheet 10 also engage by optical cement layer (not shown), and except directly making the interlayer formed and engaging, the knitting layer place that other do not illustrate all can be engaged by optical cement layer, and this does not repeat.
As shown in Figure 9, the touch display unit that the utility model the 9th embodiment provides comprises cover sheet 10, touch sensing unit (not shown), pressure sensitive unit 20 and display unit 30.Touch sensing unit between cover sheet 10 and display unit 30, also can be integrated with display unit 30 and arrange.Display unit 30 comprises the liquid crystal functional layer with liquid crystal layer 33, substrate 34 and lower polaroid 35, and backlight module 36.Pressure sensitive unit 20 comprises conductive electrode layer 21, elastic layer 22, lower conductive electrode layer 23 and Second support 230.Lower conductive electrode layer 23 and Second support 230 are arranged between elastic layer 22 and backlight module 36.Upper conductive electrode layer 21 serves as the first carrier with substrate 34 or lower polaroid 35.
As shown in Figure 10, substantially identical with the 9th embodiment of the touch display unit that the utility model the tenth embodiment provides, difference is, lower conductive electrode layer 23 does not arrange independently Second support, but with the dependency structure in backlight module 36 for Second support, such as, can serve as described Second support by the upper diffusion sheet in backlight module 36, upper prismatic lens, lower prismatic lens or lower diffusion sheet.
Figure 11 and Figure 12 is a kind of electrode schematic diagram of the conductive electrode layer of the some capacitive sensing devices forming detect force in described touch display unit, be upper conductive electrode layer for Figure 11, upper conductive electrode layer comprises the conductive electrode 211 of some strips, and these conductive electrodes 211 are formed on the first carrier 210.Be lower conductive electrode layer for Figure 12, lower conductive electrode layer comprises the conductive electrode 231 of some strips, and these conductive electrodes 231 are formed on Second support 230.The mutual homeotropic alignment of conductive electrode 211,231, there is the intersection region of certain area in the projection in horizontal two-dimension plane, can form some capacitive sensing devices for detect force thus.The detection of the capacitance of the capacitive sensing device formed is identical with the test mode of existing capacitive touch screen.
Conductive electrode can also be other shape, and as shown in Figure 13, conductive electrode 211 is rendered as the chain being connected with multiple electrode block by many.These electrode blocks are array distribution, and its shape can be square, prismatic, circle or other irregular bulk.When the conductive electrode layer shown in Figure 12 is upper conductive electrode layer, lower conductive electrode layer can be the conductive electrode of whole, and certainly lower conductive electrode layer also can have identical electrode pattern with upper conductive electrode layer.
The conductive electrode layer of the capacitive sensing device of described detect force can be produced on transparent base material by modes such as sputtering, evaporation, printings, as on the transparent thin-film materials such as PET, PC, glass.The electrode pattern of conductive electrode layer can be etched by ITOfilm, the upper silk-screened conductive slurry of PET obtains, or adopts the technique of metal grill (metal-mesh) to obtain.
In addition, according to the record in above-described embodiment, the conductive electrode layer of the capacitive sensing device of described detect force also directly can be produced on the substrate surface such as lower surface, polaroid, diffusion sheet, prismatic lens of the substrate of the liquid crystal functional layer of display unit, namely first can plate/sputtering conductive layer on base material, then make the electrode pattern of capacitive sensing device.
The utility model obtains the pressure signal of touch operation by the mode of monitoring electric capacity, the capacitive sensing device being configured for pressure signal induction can detect multiple point touching pressure signal simultaneously, and by introducing elastic layer between the two-layer conductive electrode layer forming capacitive sensing device, utilize it easily elastic deformation can occur under stressed, thus the capacitive sensing device of detect force can be made to produce sensitive capacitance variations corresponding to touch pressure, finally realize the Sensitive Detection to touch pressure.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this instructions is recorded.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (12)
1. a touch display unit, comprise cover sheet, touch sensing unit and display unit, described touch sensing unit is for responding to the touch signal put on cover sheet, it is characterized in that, described touch display unit also comprises pressure sensitive unit, described pressure sensitive unit comprises the upper conductive electrode layer of the capacitive sensing device forming detect force, lower conductive electrode layer, and be positioned at, elastic layer between lower conductive electrode layer, described pressure sensitive unit is for responding to the pressure signal put on cover sheet, and described pressure sensitive unit has the light property of can pass through.
2. touch display unit according to claim 1, it is characterized in that, described display unit comprises liquid crystal functional layer and backlight module, described liquid crystal functional layer comprises the upper polaroid, optical filter, liquid crystal layer, substrate and the lower polaroid that set gradually, and described backlight module comprises the upper diffusion sheet set gradually, upper prismatic lens, lower prismatic lens, lower diffusion sheet, light guide plate and reflector plate.
3. touch display unit according to claim 2; it is characterized in that; described touch sensing unit and display unit are integrated and are arranged; described elastic layer is between cover sheet and display unit; described pressure sensitive unit also comprises the first carrier of the upper conductive electrode layer of carrying and the Second support of the lower conductive electrode layer of carrying; described first carrier and upper conductive electrode layer are between cover sheet and elastic layer, and described Second support and lower conductive electrode layer are between elastic layer and display unit.
4. touch display unit according to claim 2; it is characterized in that; described touch sensing unit is between cover sheet and display unit; described elastic layer is between touch sensing unit and display unit; described pressure sensitive unit also comprises the first carrier of the upper conductive electrode layer of carrying and the Second support of the lower conductive electrode layer of carrying; described first carrier and upper conductive electrode layer are between cover sheet and touch sensing unit, and described Second support and lower conductive electrode layer are between elastic layer and display unit.
5. touch display unit according to claim 2; it is characterized in that; described touch sensing unit is between cover sheet and display unit; described elastic layer is between cover sheet and touch sensing unit; described pressure sensitive unit also comprises the first carrier of the upper conductive electrode layer of carrying and the Second support of the lower conductive electrode layer of carrying; described first carrier and upper conductive electrode layer are between cover sheet and elastic layer, and described Second support and lower conductive electrode layer are between elastic layer and display unit.
6. touch display unit according to claim 2; it is characterized in that; described elastic layer is between the lower polaroid and described backlight module of described liquid crystal functional layer; described pressure sensitive unit also comprises the first carrier of the upper conductive electrode layer of carrying and the Second support of the lower conductive electrode layer of carrying; described first carrier and upper conductive electrode layer are between cover sheet and elastic layer, and described Second support and lower conductive electrode layer are between elastic layer and described backlight module.
7. touch display unit according to claim 6, is characterized in that, described upper diffusion sheet, upper prismatic lens, lower prismatic lens or lower diffusion sheet serve as described Second support, and described cover sheet, substrate or lower polaroid serve as described first carrier.
8. according to the touch display unit in claim 3-5 item described in any one, it is characterized in that, described upper polaroid, optical filter or substrate serve as described Second support.
9. according to the touch display unit in claim 3-5 item described in any one, it is characterized in that, described cover sheet serves as described first carrier.
10. according to the touch display unit in claim 2-7 item described in any one, the deformable material that described elastic layer comprises matrix and carried by matrix.
11. touch display units according to claim 10, when described elastic layer is between cover sheet and display unit or between cover sheet and touch sensing unit, described cover sheet serves as described matrix; When described elastic layer is between the lower polaroid and described backlight module of described liquid crystal functional layer, described lower polaroid serves as described matrix.
12., according to the touch display unit in claim 1-7 item described in any one, is characterized in that, the capacitive sensing device of described detect force is self-capacitance or mutual capacitance inductor.
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| CN201521018883.5U CN205230006U (en) | 2015-12-09 | 2015-12-09 | Touch display device |
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| CN201521018883.5U CN205230006U (en) | 2015-12-09 | 2015-12-09 | Touch display device |
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| CN205230006U true CN205230006U (en) | 2016-05-11 |
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| CN106201083A (en) * | 2016-07-11 | 2016-12-07 | 昆山国显光电有限公司 | Pressure touch display screen |
| CN106325645A (en) * | 2016-10-27 | 2017-01-11 | 武汉华星光电技术有限公司 | Touch panel and mobile terminal |
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Effective date of registration: 20210415 Address after: 231323 Building 1, precision electronics industrial park, Hangbu Town, Shucheng County, Lu'an City, Anhui Province Patentee after: Anhui jingzhuo optical display technology Co.,Ltd. Address before: 330000 Huang Jia Hu Road, Nanchang economic and Technological Development Zone, Nanchang, Jiangxi Patentee before: Nanchang OFilm Tech. Co.,Ltd. Patentee before: Ophiguang Group Co.,Ltd. Patentee before: SUZHOU OFILM TECH Co.,Ltd. |
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