CN207458004U - A kind of Trackpad and LED display - Google Patents
A kind of Trackpad and LED display Download PDFInfo
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- CN207458004U CN207458004U CN201720867182.1U CN201720867182U CN207458004U CN 207458004 U CN207458004 U CN 207458004U CN 201720867182 U CN201720867182 U CN 201720867182U CN 207458004 U CN207458004 U CN 207458004U
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Abstract
The utility model provides a kind of Trackpad and LED display, including at least one layer of touch-control sensing layer, at least one layer of pixel lamp wall and at least one layer of medium substrate layer being cascading；Touch-control sensing layer includes spaced multiple sensing units and at least one ground unit, sensing unit and ground unit do not contact, ground unit is independently arranged or is connected with other any number of ground units, and for sensing touching signals, ground unit is used to be grounded sensing unit；Spaced multiple through holes are offered on pixel lamp wall, through hole is opened in below the gap of touch-control sensing layer, and through hole is used to place LED pixel lamp；Several vias are offered on medium substrate, sensing unit, ground unit and LED pixel lamp are by passing through the conducting wire of via to be connected to the bottom of medium substrate layer.For the utility model while touch display function is realized, the size for making Trackpad is unrestricted, can be widely applied to large-sized capacitance touching control display screen.
Description
Technical field
The utility model embodiment belongs to technical field of touch-control display more particularly to a kind of Trackpad and LED display.
Background technology
With the continuous development of LED display technique, capacitance touching control technology is also widely used in the LED of various electronic products
On display screen, the intelligent touch function of electronic product is realized, the very big ease for use for improving electronic product.
However, existing capacitance touching control technology is only capable of applying in small size display screen, and meeting is shown, TV station shows
Show, put on display display etc. occasions usually require to use large-sized touching display screen, existing capacitance touching control technology cannot meet day
The large touch that benefit increases shows demand.There is provided a kind of capacitance touching control technology that can apply to large scale display screen becomes urgently
It solves the problems, such as.
Utility model content
The utility model embodiment provides a kind of Trackpad and LED display, in can applying on large scale display screen,
It realizes the touch display function of large scale display screen, and has many advantages, such as that production cost is low, processing technology is simple.
On the one hand the utility model embodiment provides a kind of Trackpad, including at least one layer of touch-control being cascading
Inductive layer, at least one layer of pixel lamp wall and at least one layer of medium substrate layer；
The touch-control sensing layer includes spaced multiple sensing units and at least one ground unit, and the sensing is single
First and described ground unit does not contact, and the ground unit is independently arranged or connects with other any number of described ground units
It connects, the sensing unit is for sensing touching signals to control LED pixel lamp, and the ground unit is for being grounded, the sensing
Unit and the ground unit are made of electrically conductive material；
Spaced multiple through holes are offered on the pixel lamp wall, the through hole is opened in the touch-control sensing
Below the gap of layer, the through hole is used to place the LED pixel lamp with the adjacent LED pixel lamp in interval；
Several vias, the sensing unit, the ground unit and the LED pixels are offered on the medium substrate
Lamp is connected to the bottom of the medium substrate layer by passing through the conducting wire of the via, the pixel lamp wall and is given an account of
Matter substrate layer is made of insulating materials.
In one embodiment, a sensing unit is adjacent at least one LED pixel lamp.
In one embodiment, the conductive material be conductive metal material or non-metallic conducting material, the insulation material
Expect for glass mat, liquid crystal polymer film, resin or ceramics.
In one embodiment, the conductive metal material be copper foil, aluminium foil, copper alloy thin films or aluminum alloy films, institute
Non-metallic conducting material is stated as conductive rubber, conductive plastics or conductive fibers.
In one embodiment, the solder mask coated in the touch-control sensing layer surface positioned at top layer is further included
Layer or be arranged in top layer the touch-control sensing layer surface flame resistant material layer.
In one embodiment, the section of the sensing unit and the ground unit is octagon, the through hole
Section is circle, and the octagon includes four curls and four straight flanges and curl and straight flange are alternately distributed, the adjacent sense
Answer the curl that the adjacent side of unit or the ground unit is the straight flange being mutually parallel, the sensing unit or the ground unit
Each parallel to the section circular arc of its adjacent through hole；Wherein, the section refers to section of the upper surface parallel to the Trackpad
Face.
In one embodiment, the section of the sensing unit, the ground unit and the through hole is square；Its
In, the section refers to the section of the upper surface parallel to the Trackpad.
The embodiment of the present invention also provides a kind of LED touching display screens, including above-mentioned Trackpad, further includes touch-control sensing
Circuit；
The touch control induction circuit includes corresponding to company at least one touch-control sensing module, a touch-control sensing module
Connect at least one sensing unit；
The touch-control sensing module by sensing unit connected to it input touching signals and to touching signals at
Reason.
In one embodiment, the touch control induction circuit further includes current-limiting resistance, reference capacitance, shunt capacitance and serial
Command input end mouth；
The touching signals output terminal of the touch-control sensing module connects power supply, the touch-control sensing mould by the current-limiting resistance
The negative power end ground connection of block, the sensing unit that the touching signals input terminal of the touch-control sensing module is corresponding connects, described
The reference capacitance input terminal of touch-control sensing module is grounded by the reference capacitance, the positive supply termination of the touch-control sensing module
Power supply is simultaneously grounded by the shunt capacitance, and the touching signals output type selection end of the touch-control sensing module passes through the string
Line command input port is grounded, and the serial order input port is used for incoming serial order.
In one embodiment, the touch control induction circuit further includes LED light, and the LED light is connected to institute
It states between touching signals output terminal and the current-limiting resistance.
The touch-control that the utility model embodiment is made up of touch-control sensing layer, pixel lamp wall and medium substrate layer stackup
Plate senses touching signals by the sensing unit on touch-control sensing layer, can make to touch while touch display function is realized
The size for controlling plate can be unrestricted, can be widely applied to large-sized capacitance touching control display screen, and with production cost
Low, the advantages that processing technology is simple.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the utility model,
For those of ordinary skill in the art, without creative efforts, can also be obtained according to these attached drawings
Other attached drawings.
Fig. 1 is the A-A of the front view of Trackpad, top view and top view that the utility model embodiment one provides to cuing open
View；
Fig. 2 is the top view of Trackpad and the sectional view along A-A of top view that the utility model embodiment two provides；
Fig. 3 is the structure diagram for the LED touching display screens that the utility model embodiment three provides；
Fig. 4 is the electrical block diagram for the touch control induction circuit that the utility model embodiment four provides.
Specific embodiment
It is real below in conjunction with the utility model in order to which those skilled in the art is made to more fully understand the utility model
The attached drawing in example is applied, the technical scheme in the embodiment of the utility model is explicitly described, it is clear that described embodiment
It is the embodiment of the utility model part, instead of all the embodiments.Based on the embodiment in the utility model, this field
Those of ordinary skill's all other embodiments obtained without making creative work, should all belong to this practicality
Novel protected scope.
Term " comprising " and their any changes in the specification and claims of the utility model and above-mentioned attached drawing
Shape, it is intended that cover non-exclusive include.Such as process, method or system comprising series of steps or unit, product or
The step of equipment is not limited to list or unit, but optionally further include the step of not listing or unit or optional
Ground is further included for the intrinsic other steps of these processes, method, product or equipment or unit.In addition, term " first ", " the
Two " and " the 3rd " etc. are for distinguishing different objects, not for description particular order.
Embodiment one：
As shown in Figure 1, the present embodiment provides a kind of Trackpad, including at least one layer of touch-control sensing being cascading
Layer 1, at least one layer of pixel lamp wall 2 and at least one layer of medium substrate layer 3.
Illustrate for convenience in Fig. 1, (dotted line frame encloses the area come to the merely exemplary floor touch-control sensing floor 1 that shows in figure
Domain), one layer of pixel lamp wall 2 and one layer of medium substrate layer 3.
In a particular application, the number of plies of touch-control sensing layer, pixel lamp wall or medium substrate layer can be according to actual need
It sets, for example, two layers of pixel lamp wall and two layer medium substrate layer can be set, the purpose for increasing the number of plies is to increase
Thickness convenient for cabling, is unfavorable for cabling if too small, the every layer thickness of interlamellar spacing is too thin.
As shown in the top view in Fig. 1, touch-control sensing layer 1 includes spaced multiple sensing units 11 and at least one
A ground unit 12, sensing unit 11 and ground unit 12 do not contact, ground unit 12 be independently arranged or with it is any number of its
He connects ground unit 12, and for sensing touching signals to control LED pixel lamp, ground unit 12 is used to connect sensing unit 11
Ground, sensing unit 11 and ground unit 12 are made of electrically conductive material.
In a particular application, the quantity of sensing unit and ground unit can be set according to actual needs, sensing unit and
The quantity of ground unit can be equal, at least needs to include a ground unit, including two and during above ground unit, institute
After having ground unit that can be connected with each other altogether, ground unit is connected to through the via on medium substrate especially by conducting wire and connects
Place is grounded.
In one embodiment, a sensing unit is adjacent at least one LED pixel lamp.
In a particular application, a sensing unit can correspond to a LED pixel lamp or two and above LED pixel lamp,
Specifically determined by the density of LED pixel lamp.
In a particular application, the touching signals of sensing units sense specifically refer to human finger or capacitance pen and touch-control sensing
It when unit contacts, causes capacitance variations and causes curent change, so as to the touching signals generated.
In one embodiment, conductive material is conductive metal material or non-metallic conducting material, and conductive metal material can
To select arbitrary conductive metal material according to actual needs, for example, the alloy materials such as copper foil, aluminium foil or copper alloy, aluminium alloy
Manufactured film；Non-metallic conducting material can also select arbitrary conductive metal material according to actual needs, such as conductive rubber,
Conductive plastics, conductive fibers etc..
As shown in the sectional view along A-A in Fig. 1, spaced multiple through holes 21 are offered on pixel lamp wall 2, are led to
Hole 21 is opened in below the gap of touch-control sensing layer 1, and through hole 21 is for placing LED pixel lamps, with the adjacent LED pictures in interval
Plain lamp.
Sectional view along A-A in Fig. 1 illustratively illustrates the situation equal with 12 quantity of ground unit of sensing unit 11.
In Fig. 1, the section of sensing unit 11 and ground unit 12 is octagon, and the section of through hole 21 is circle, and octagon includes
Four curls and four straight flanges and curl and straight flange are alternately distributed, the adjacent side of adjacent sensing unit 11 or ground unit 12 is
The curl of the straight flange being mutually parallel, sensing unit 11 or ground unit 12 is each parallel to the section circular arc of its adjacent through hole；Its
In, section refers to the section of the upper surface parallel to Trackpad.
In Fig. 1, sensing unit is identical with the size of ground unit, and the sensing unit or ground unit of arbitrary neighborhood
Between spacing it is equal, the spacing between sensing unit or ground unit through hole adjacent thereto is also equal.Structure shown in FIG. 1
Distribution can realize that the area of touch-control sensing layer maximizes, so that when the Trackpad based on the structure is applied to LED display,
It can realize good touch-control effect.
In a particular application, the cross sectional shape of sensing unit, ground unit and through hole can be set according to actual needs
It puts, as long as can realize respectively convenient for sensing touching signals, ground connection and the function of placing LED pixel lamp.
Several via (not shown)s, sensing unit 11, ground unit 12 and LED pictures are offered on medium substrate layer 3
Plain lamp is then attached to by the way that the conducting wire of via is passed through to be connected to the bottom of medium substrate layer 3 and is arranged on 3 bottom of medium substrate layer
The touch control induction circuit in portion, pixel lamp wall 2 and medium substrate layer 3 are made of insulating materials.
In a particular application, the thickness of medium substrate and number of vias can be set according to actual needs, as long as sharp
In the cabling of sensing unit, ground unit and LED pixel lamp.
In one embodiment, insulating materials can select any type of material according to actual needs, for example, glass fibers
Tie up plate, liquid crystal polymer film, resin or ceramic example etc..
In one embodiment, Trackpad further includes the solder mask coated in the touch-control sensing layer surface positioned at top layer
Layer or be arranged in top layer touch-control sensing layer surface flame resistant material layer.
In a particular application, flame resistant material layer is specifically as follows FR-4 epoxy resin boards.
In a particular application, Trackpad can select arbitrary known preparation process to prepare according to actual needs, for example,
COB techniques.The preparation process of Trackpad is not particularly limited in the present embodiment.
The Trackpad that the present embodiment is made up of touch-control sensing layer, pixel lamp wall and medium substrate layer stackup, passes through
Sensing unit on touch-control sensing layer senses touching signals, can make Trackpad while touch display function is realized
Size can be unrestricted, can be widely applied to large-sized capacitance touching control display screen, and with production cost is low, processing
The advantages that simple for process.
Embodiment two：
As shown in Fig. 2, illustratively show that sensing unit 11, ground unit 12 and through hole 21 are (black in figure in the present embodiment
Color square represents through hole 21) section be square situation, wherein, section refers to the upper surface parallel to Trackpad
Section.
In Fig. 2, the section of sensing unit 11, ground unit 12 and through hole 21 is the identical square of size, wherein one
Seven sensing units 11 and a ground unit are provided with around a through hole 21, eight senses are both provided with around other through holes 21
Answer unit.
In a particular application, as long as ensureing that entire touch-control sensing layer includes at least one ground unit.
Embodiment three：
As shown in figure 3, one embodiment of the utility model illustratively shows a kind of LED touching display screens 100,
Including the Trackpad 10 in above-described embodiment, touch control induction circuit 20 is further included, touch control induction circuit 20 includes at least one touch
Induction module 201 is controlled, touch-control sensing module 201 is correspondingly connected with an at least sensing unit 11, and touch-control sensing module 20 is used to lead to
Sensing unit 11 connected to it is crossed to input touching signals and handle touching signals.
Illustratively show that touch control induction circuit 20 includes touch-control sensing corresponding with all 11 quantity of sensing unit in Fig. 3
Module 201, each touch-control sensing module 201 are correspondingly connected with a sensing unit 11.
In a particular application, touch-control sensing module can also only there are one, when only there are one touch-control sensing module when, touch-control
Induction module is connected respectively with multiple sensing units.
Example IV：
As shown in figure 4, in one embodiment of the utility model, touch control induction circuit 20 further include current-limiting resistance R1,
Reference capacitance C1, shunt capacitance C2 and serial order input port LHF.
As shown in figure 4, in the present embodiment touch-control sensing module 201 be specially touch-control sensing chip IC 1, touch-control sensing core
The touching signals output terminal KOUT of piece IC1 meets power vd D, the negative power end VSS of touch-control sensing chip IC 1 by current-limiting resistance R1
Ground connection, sensing unit Key1-1 connections corresponding the touching signals input terminal Key of touch-control sensing chip IC 1, touch-control sensing
The reference capacitance input terminal Cref of chip IC 1 is grounded by reference to capacitance C1, and the positive power source terminal VDD of touch-control sensing chip IC 1 connects
Power vd D simultaneously passes through shunt capacitance C2 and is grounded, and the touching signals output type selection end LHF of touch-control sensing chip IC 1 passes through
Serial order input port LHF is grounded, and serial order input port LHF is used for incoming serial order.
As shown in figure 4, in the present embodiment, touch control induction circuit 20 further includes LED light LED1, LED light
LED1 is connected between touching signals output terminal KOUT and current-limiting resistance R1.
In a particular application, touch-control sensing chip is specifically as follows BS801B type touch sensible button chips, can also root
The chip of any other type is selected according to actual needs.
In one embodiment, touch-control sensing module can pass through universal integrated circuit, such as CPU (Central
Processing Unit, central processing unit) or pass through ASIC (Application Specific Integrated
Circuit, application-specific integrated circuit) it realizes.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of Trackpad, which is characterized in that including be cascading at least one layer of touch-control sensing layer, at least one layer of pixel
Lamp wall and at least one layer of medium substrate layer；
The touch-control sensing layer include spaced multiple sensing units and at least one ground unit, the sensing unit and
The ground unit does not contact, and the ground unit is independently arranged or is connected with other any number of described ground units, institute
Sensing unit is stated for sensing touching signals to control LED pixel lamp, the ground unit for being grounded, the sensing unit and
The ground unit is made of electrically conductive material；
Spaced multiple through holes are offered on the pixel lamp wall, the through hole is opened in the touch-control sensing layer
Below gap, the through hole is used to place the LED pixel lamp with the adjacent LED pixel lamp in interval；
Several vias are offered on the medium substrate, the sensing unit, the ground unit and the LED pixel lamp are logical
The conducting wire crossed through the via is connected to the bottom of the medium substrate layer, the pixel lamp wall and the medium substrate
Layer is made of insulating materials.
2. Trackpad as described in claim 1 a, which is characterized in that sensing unit and at least one LED pictures
Plain lamp is adjacent.
3. Trackpad as described in claim 1, which is characterized in that the conductive material is conductive metal material or nonmetallic leads
Electric material, the insulating materials are glass mat, liquid crystal polymer film, resin or ceramics.
4. Trackpad as claimed in claim 3, which is characterized in that the conductive metal material is copper foil, aluminium foil, copper alloy are thin
Film or aluminum alloy films, the non-metallic conducting material are conductive rubber, conductive plastics or conductive fibers.
5. Trackpad as described in claim 1, which is characterized in that further include coated in the touch-control sensing positioned at top layer
The solder mask layer of layer surface or be arranged in top layer the touch-control sensing layer surface flame resistant material layer.
6. Trackpad as described in claim 1, which is characterized in that the section of the sensing unit and the ground unit is
Octagon, the section of the through hole is circle, and the octagon includes four curls and four straight flanges and curl and straight flange replace
Distribution, the adjacent side of the adjacent sensing unit or the ground unit are the straight flange being mutually parallel, the sensing unit or
The curl of the ground unit is each parallel to the section circular arc of its adjacent through hole；Wherein, the section refers to parallel to described
The section of the upper surface of Trackpad.
7. Trackpad as described in claim 1, which is characterized in that the sensing unit, the ground unit and the through hole
Section be square；Wherein, the section refers to the section of the upper surface parallel to the Trackpad.
8. a kind of LED touching display screens, which is characterized in that including such as claim 1~7 any one of them Trackpad, also wrap
Include touch control induction circuit；
The touch control induction circuit includes at least one touch-control sensing module, and the touch-control sensing module is correspondingly connected at least one
The sensing unit；
The touch-control sensing module inputs touching signals by sensing unit connected to it and touching signals is handled.
9. LED touching display screens as claimed in claim 8, which is characterized in that the touch control induction circuit further includes current limliting electricity
Resistance, reference capacitance, shunt capacitance and serial order input port；
The touching signals output terminal of the touch-control sensing module connects power supply by the current-limiting resistance, the touch-control sensing module
Negative power end is grounded, and the sensing unit that the touching signals input terminal of the touch-control sensing module is corresponding connects, the touch-control
The reference capacitance input terminal of induction module is grounded by the reference capacitance, the positive supply termination power of the touch-control sensing module
And be grounded by the shunt capacitance, the touching signals output type selection end of the touch-control sensing module passes through the serial life
Input port is made to be grounded, the serial order input port is used for incoming serial order.
10. LED touching display screens as claimed in claim 9, which is characterized in that the touch control induction circuit further includes LED and refers to
Show lamp, the LED light is connected between the touching signals output terminal and the current-limiting resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720867182.1U CN207458004U (en) | 2017-07-17 | 2017-07-17 | A kind of Trackpad and LED display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720867182.1U CN207458004U (en) | 2017-07-17 | 2017-07-17 | A kind of Trackpad and LED display |
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| Publication Number | Publication Date |
|---|---|
| CN207458004U true CN207458004U (en) | 2018-06-05 |
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ID=62248855
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720867182.1U Active CN207458004U (en) | 2017-07-17 | 2017-07-17 | A kind of Trackpad and LED display |
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| CN (1) | CN207458004U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107340926A (en) * | 2017-07-17 | 2017-11-10 | 深圳市奥拓电子股份有限公司 | A kind of Trackpad and LED display |
| WO2019042030A1 (en) * | 2017-08-30 | 2019-03-07 | 深圳市奥拓电子股份有限公司 | Light-control panel and led display screen |
| WO2019148777A1 (en) * | 2018-02-02 | 2019-08-08 | 深圳市奥拓电子股份有限公司 | Led display module and led display screen |
-
2017
- 2017-07-17 CN CN201720867182.1U patent/CN207458004U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107340926A (en) * | 2017-07-17 | 2017-11-10 | 深圳市奥拓电子股份有限公司 | A kind of Trackpad and LED display |
| CN107340926B (en) * | 2017-07-17 | 2023-09-26 | 深圳市奥拓电子股份有限公司 | Touch control panel and LED display screen |
| WO2019042030A1 (en) * | 2017-08-30 | 2019-03-07 | 深圳市奥拓电子股份有限公司 | Light-control panel and led display screen |
| WO2019148777A1 (en) * | 2018-02-02 | 2019-08-08 | 深圳市奥拓电子股份有限公司 | Led display module and led display screen |
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