CN206058157U - Integrated touch-control display panel and display device - Google Patents
Integrated touch-control display panel and display device Download PDFInfo
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- CN206058157U CN206058157U CN201620819924.9U CN201620819924U CN206058157U CN 206058157 U CN206058157 U CN 206058157U CN 201620819924 U CN201620819924 U CN 201620819924U CN 206058157 U CN206058157 U CN 206058157U
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Abstract
This application discloses a kind of integrated touch-control display panel and display device.Wherein, integrated touch-control display panel includes：Touch-control emission electrode array, touch-control sensing electrod-array, black matrix" and colored filter；Any one touch-control sensing electrode is overlap at least in part with any one touch-control emission electrode to the orthographic projection of touch-control emission electrode array；Black matrix" includes multiple black matrix" rows arranged in the first direction and multiple black matrix" row arranged in a second direction；Each black matrix" row and each black matrix" column split colored filter are forming the display pixel of multiple array arrangements；Touch-control sensing electrode is mesh electrode, and black matrix" covers orthographic projection of the mesh electrode to black matrix" at least in part.According to the scheme of the application, can make at least a portion cabling of touch-control sensing electrode that transparent area without passing through pixel is covered by black matrix", improve the integrated touch-control display panel and the display effect of display device of the application.
Description
Technical field
It relates to display technology field, more particularly to a kind of integrated touch-control display panel and display device.
Background technology
In current touch control display apparatus, touch controllable function is mainly realized by two-layer touch control electrode layer, wherein every layer of touch-control
Electrode layer has a plurality of touch control electrode be arrangeding in parallel, and two-layer touch control electrode is mutually orthogonal.To applying touch-control in each bar touch control electrode
Pumping signal, when the finger contact touch screen of people, some touch control electrodes formation coupled capacitors on finger and touch screen, and from
Coupled capacitor flows out leakage current.Touch-control detection circuit is determined and form coupling with finger in two-layer touch control electrode by detecting leakage current
Close two orthogonal touch control electrodes of electric capacity and determine position of touch.In prior art, generally using transparent conductive material, for example
ITO (tin indium oxide) is making touch control electrode.However, transparent conductive material has larger resistance, cause which in touch control detection
When insufficient sensitivity.
Resistance during touch control electrode is made to solve the problems, such as using transparent conductive material larger, it is existing a kind of using gold
Category mesh electrode is used as the technology of touch control electrode.
It is shown in Figure 1, in being existing touch control display apparatus, between metal net shaped touch-control sensing electrode and pixel
Relative position relation structure chart.Touch control display apparatus shown in Fig. 1 include pel array, and (as shown in Figure 1 fills with shade
Region) and metal net shaped touch-control sensing electrode 120.Wherein, pel array includes multiple pixels of multiple array arrangements
110, touch-control sensing electrode 120 is made up of the metal wire for interweaving.
But in prior art as shown in Figure 1, the metal wire of metal net shaped touch-control sensing electrode 120 is usually inclined
Cabling, and through the transmission region of pixel 110.So, when the touch control display apparatus comprising wire mesh electrode shown in Fig. 1
Show dark picture or it is strong in outside ambient light when, metal net shaped touch-control sensing electrode 120 is easily visually noticeable,
So as to have impact on display effect.
Utility model content
In view of drawbacks described above of the prior art or deficiency, expect to provide a kind of integrated touch-control display panel and show dress
Put, to solving technical problem present in prior art.
In a first aspect, the embodiment of the present application provide a kind of integrated touch-control display panel, including touch-control emission electrode array,
Touch-control sensing electrod-array, black matrix" and colored filter；It is many that touch-control emission electrode array includes arranging in the first direction
Individual touch-control emission electrode；Touch-control sensing electrod-array includes the multiple touch-control sensing electrodes for arranging in a second direction；It is any one to touch
Control induction electrode is overlap at least in part with any one touch-control emission electrode to the orthographic projection of touch-control emission electrode array；Black square
Battle array includes multiple black matrix" rows arranged in the first direction and multiple black matrix" row arranged in a second direction；Each black
Row matrix and each black matrix" column split colored filter are forming the display pixel of multiple array arrangements；Touch-control sensing electrode is
Mesh electrode, and black matrix" covers orthographic projection of the mesh electrode to black matrix" at least in part.
Second aspect, the embodiment of the present application additionally provide a kind of integrated touch control display apparatus, including integrated touch-control as above
Display floater.
According to the scheme of the embodiment of the present application, between netted touch-control sensing electrode is arranged between adjacent pixels
Septal area, can make at least a portion cabling of touch-control sensing electrode that the transparent area without passing through pixel is covered by black matrix".
So, any picture and/or integrated touch-control display panel and display device are being shown under any environment light condition, is being touched
Control induction electrode will not be visually noticeable, so as to improve the aobvious of the integrated touch-control display panel and display device of the application
Show effect.
Description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, the application other
Feature, objects and advantages will become more apparent upon：
During Fig. 1 shows integrated touch-control display panel of the prior art, the schematic diagram of netted touch control electrode；
During Fig. 2 shows the integrated touch-control display panel of the application, the touch-control sensing electrod-array of one embodiment with it is aobvious
Show the schematic diagram of the relative position relation of pel array；
Schematic diagrams of the Fig. 3 for the touch-control sensing electrod-array in Fig. 2；
Schematic diagrams of the Fig. 4 for another kind of optional implementation of touch-control sensing electrod-array；
During Fig. 5 shows the integrated touch-control display panel of the application, the touch-control sensing electrod-array of another embodiment with
The schematic diagram of the relative position relation of display pixel array；
Schematic diagrams of the Fig. 6 for a kind of optional implementation of embodiment illustrated in fig. 5；
Schematic diagrams of the Fig. 7 for another kind of optional implementation of embodiment illustrated in fig. 5；
Fig. 8 shows the schematic diagram of one embodiment of the integrated touch-control display panel of the application.
Specific embodiment
With reference to the accompanying drawings and examples the application is described in further detail.It is understood that this place is retouched
The specific embodiment stated is used only for explaining relevant utility model, rather than the restriction to the utility model.Further need exist for explanation
, for the ease of description, in accompanying drawing, illustrate only the part related to utility model.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combine.Below with reference to the accompanying drawings and in conjunction with the embodiments describing the application in detail.
It is shown in Figure 2, be the application integrated touch-control display panel in, the touch-control sensing electrode array of one embodiment
The schematic diagram of the relative position relation of row, touch-control emission electrode array and display pixel array.
In the present embodiment, integrated touch-control display panel includes touch-control emission electrode array, touch-control sensing electrod-array, black
Matrix (not shown) and colored filter (not shown).
Touch-control emission electrode array includes the multiple touch-control emission electrode 210 for arranging in the first direction.Touch-control sensing electricity
Pole array includes the multiple touch-control sensing electrode 220 for arranging in a second direction.Any one touch-control sensing electrode 220 is sent out to touch-control
The orthographic projection for penetrating electrod-array is overlap at least in part with any one touch-control emission electrode 210.
Black matrix" include multiple black matrix" rows arranged in the first direction and it is multiple arrange in a second direction it is black
Colour moment array.Each black matrix" row and each black matrix" column split colored filter are forming the display pixel of multiple array arrangements
230.In other words, in Fig. 2, black matrix" row, two neighboring display pixel rows between two neighboring columns of display pixels, are formed with
Between be formed with black matrix" row.
Here, the integrated touch-control display panel of each embodiment of the application can include the multiple colours with different colours
Optical filter, so that the display pixel being separated to form by black matrix" can show different colors.
Additionally, in the integrated touch-control display panel of the present embodiment, touch-control sensing electrode is mesh electrode, and black matrix" is extremely
Orthographic projection of the mesh electrode to black matrix" is covered partially.In other words, in the integrated touch-control display panel of the present embodiment,
The a part of cabling for forming mesh electrode is located in the interval region between adjacent display pixel 230, thus this part cabling
Can be covered by black matrix".So, no matter under which kind of environment light condition, also no matter integrated touch-control display panel shows
Which kind of picture, the cabling of this partial mesh electrode covered by black matrix" will not be visually noticeable, thus will not be to aobvious
Show that effect causes any bad impact.
In the integrated touch-control display panel of each embodiment of the application, as the mesh electrode of touch-control sensing electrode can be
Wire mesh electrode.Mesh electrode is made using metal, the resistance of touch-control sensing electrode can be caused relatively low, so as to further
Improve the sensitivity of touch control detection.As make mesh electrode metal, optionally have aluminum, titanium, silver, molybdenum, tungsten, copper, chromium or
Alloy comprising them.
It is shown in Figure 3, it is the schematic diagram of the touch-control sensing electrode in Fig. 2.
Touch-control sensing electrode includes multiple first wire mesh grids.In same touch-control sensing electrode, phase in the first direction
Two adjacent the first wire mesh grids have overlapped side.For example, in Fig. 3, the first adjacent metal wire in the first direction
Grid 221 and the first wire mesh grid 222 have overlapped side 223.
Additionally, in same touch-control sensing electrode, two adjacent in a second direction the first wire mesh grids can also have
There is overlapped side.For example, in Fig. 3, the first adjacent wire mesh grid 221 and the first wire mesh grid in a second direction
224 have overlapped side 225.So, can be by a plurality of phase mutual respect between the first wire mesh grid of adjacent lines
Folded side to be forming multiple conductive paths between each first wire mesh grid of adjacent lines, it is to avoid a certain position metal wire
The situation of the whole touch-control sensing electrode open circuit that fracture is likely to result in occurs.
It is shown in Figure 4, be the present embodiment integrated touch-control display panel in, the another kind of touch-control sensing electrode is optional
The structure of implementation.
It is similar with Fig. 3, in the touch-control sensing electrod-array shown in Fig. 4, in same touch-control sensing electrode, in the first direction
Two adjacent the first wire mesh grids have overlapped side.For example, in Fig. 4, the first adjacent metal in the first direction
Wire grid 421 and the first wire mesh grid 422 have overlapped side 423.
From unlike Fig. 3, in Fig. 4, touch-control sensing electrode also includes a plurality of first metal contact wires.Same touch-control sense
In answering electrode, adjacent in a second direction two the first wire mesh grids are by least one the first metal contact wires electrical connections.
For example, in Fig. 4, the first adjacent wire mesh grid 421 and the first wire mesh grid 424 pass through the first metal wire in a second direction
425 electrical connections.So, can be by a plurality of first metal wire come in adjacent lines between the first wire mesh grid of adjacent lines
Each first wire mesh grid between form multiple conductive paths, it is to avoid it is whole that a certain position metal thread breakage is likely to result in
The situation of individual touch-control sensing electrode open circuit occurs.
In some optional implementations, the first wire mesh grid can be concave polygon.In the concave polygon extremely
Few a part of side is may be located between adjacent display pixels, and in black matrix" coverage.
It is shown in Figure 5, be the application integrated touch-control display panel in, the touch-control sensing electrode array of another embodiment
The schematic diagram of the relative position relation of row and display pixel array.
Similar with embodiment illustrated in fig. 2, in the present embodiment, integrated touch-control display panel equally includes touch-control emission electrode battle array
Row, touch-control sensing electrod-array, black matrix" and colored filter.
Touch-control emission electrode array includes the multiple touch-control emission electrode for arranging in the first direction.Touch-control sensing electrode array
Row include the multiple touch-control sensing electrode 520 for arranging in a second direction.Any one touch-control sensing electrode 520 is to touch-control transmitting electricity
The orthographic projection of pole array is overlap at least in part with any one touch-control emission electrode.
Black matrix" include multiple black matrix" rows arranged in the first direction and it is multiple arrange in a second direction it is black
Colour moment array.Each black matrix" row and each black matrix" column split colored filter are forming the display pixel of multiple array arrangements
530.In other words, in Fig. 5, black matrix" row, two neighboring display pixel rows between two neighboring columns of display pixels, are formed with
Between be formed with black matrix" row.
Touch-control sensing electrode can also be mesh electrode, and the shape of each wire mesh grid can also equally be recessed polygon
Shape.
From unlike embodiment illustrated in fig. 2, in the present embodiment, black matrix" all covers mesh electrode to black matrix"
Orthographic projection.In other words, in the integrated touch-control display panel of the present embodiment, the whole cablings for forming mesh electrode are respectively positioned on phase
In interval region between adjacent display pixel 530, thus whole touch-control sensing electrodes can be covered by black matrix".
So, no matter under which kind of environment light condition, also no matter which kind of picture integrated touch-control display panel shows, touches
The cabling of control induction electrode will not be visually noticeable, thus any bad impact will not be caused to display effect.With Fig. 2
Shown embodiment is compared, and the touch-control sensing electrode of the present embodiment can further lift the display effect of integrated touch-control display panel
Really.
Furthermore, it is necessary to explanation, although in Fig. 5, each wire mesh grid in same touch-control sensing electrode 520 is led to
Cross connecting line 540 to electrically connect, but this is only schematic.Those skilled in the art are obtaining technical scheme disclosed in the present application
On the basis of, the electric connection mode of adjacent metal wire grid can be determined according to the demand of practical application scene.
For example, as shown in fig. 6, during same touch-control sensing electrode can be made, adjacent wire mesh grid in the first direction
(for example, wire mesh grid 621 and wire mesh grid be 622) with overlapped side, and adjacent in a second direction two golden
Category wire grid is connected by connecting line 640, so that the electrical connection of adjacent metal wire grid.
Or, as shown in fig. 7, during same touch-control sensing electrode can also be made, adjacent wire screen in the first direction
Lattice (for example, wire mesh grid 721 and wire mesh grid be 722) with overlapped side 730, and gold adjacent in a second direction
(for example, wire mesh grid 721 and wire mesh grid be 723) with mutually at least partly overlapping side 740, so that phase for category wire grid
Adjacent wire mesh grid electrical connection.
In each embodiment of the application, each wire mesh grid can be zhou duicheng tuxing.The zhou duicheng tuxing can have
At least one axis of symmetry.For example, wire mesh grid can have the first axis of symmetry for extending in a first direction, and/or, metal wire
Grid can also have the second axis of symmetry for extending in a second direction.
Additionally, in some optional implementations, when the touch-control sensing electrode of each embodiment of the application is made, can be with
The wire mesh electrode of monoblock is simultaneously made, then the wire mesh electrode of monoblock is split by etching technics and to be formed along second party
To multiple touch-control sensing electrodes of arrangement.
It is shown in Figure 8, it is the schematic diagram of one embodiment of the integrated touch-control display panel of the application.
In Fig. 8, integrated touch-control display panel includes array base palte 810, and the color membrane substrates that are oppositely arranged of array base palte
820。
Touch-control emission electrode array comprising multiple touch-control emission electrodes 811 can be arranged on array base palte 810, and is wrapped
Touch-control sensing electrod-array containing multiple touch-control sensing electrodes 821 can be arranged on color membrane substrates 820.
In some optional implementations, touch-control sensing electrod-array may be provided at color membrane substrates 820 away from array base
The side (as shown in figure 8, touch-control sensing electrod-array is arranged on the upper surface of color membrane substrates 820) of plate 810, and touch-control transmitting electricity
Pole array can be arranged on array base palte 810 towards the side of color membrane substrates 820.
Additionally, in some optional implementations, being also formed with multi-strip scanning line on array base palte 810 and (not showing in figure
Go out) and the data wire (not shown) intersected with each scan line.Scan line and data wire have intersected to form pel array.Respectively
Scan line can be extended in a first direction, and each data wire can extend in a second direction.In other words, in these optional realization sides
In formula, the bearing of trend of touch-control emission electrode 811 is identical with the bearing of trend of data wire, and the extension of touch-control sensing electrode 821
Direction is identical with the bearing of trend of scan line.
The integrated touch-control display panel of the application also includes integrated circuit 812, a plurality of touch scanning signals line 813 and a plurality of
Touch-control sensing holding wire 822.
The connection corresponding with each touch-control emission electrode 811 of the first end of each touch scanning signals line 813, each touch scanning signals
Second end of line 813 is connected with integrated circuit 812.Similarly, the first end of each touch-control sensing holding wire 822 and each touch-control sensing
The correspondence of electrode 821 connects, and the second end of each touch-control sensing holding wire 822 is connected with integrated circuit 812.As touch-control sensing is believed
Number line 822 is arranged on color membrane substrates 820, and integrated circuit 812 is arranged on array base palte 810.In order to realize touch-control sensing
The electrical connection of holding wire 822 and integrated circuit 812, for example can be by being connected to touch-control sensing holding wire 822 and integrated circuit
FPC (flexible circuit board) 823 between 812 is forming conductive path.
Integrated circuit 812 can be used to provide touch scanning signals to each touch-control emission electrode 811 during touch-control and receive
The touch-control sensing signal of each touch-control sensing electrode 821.For example, during touch-control, integrated circuit 812 is launched to each touch-control successively
Electrode 811 provides touch scanning signals, and while receives the touch-control sensing signal of whole touch-control sensing electrodes 821.According to
The difference of the touch-control sensing signal that touch-control sensing electrode 821 is sent to integrated circuit 812, it may be determined that go out touch location.
In some optional implementations, in the integrated touch-control display panel of the application, touch-control sensing holding wire 822 can
To be arranged on same conductor layer with touch-control sensing electrode 821.Or, in other optional implementations, touch-control sensing letter
Number line 822 can also be arranged on different conductor layers from touch-control sensing electrode 821.Now, each touch-control sensing holding wire 822 can be with
By way of directly contact realize electrically connecting with each touch-control sensing electrode 821, or, it is also possible to by being opened in touch-control sensing
Through hole on insulating barrier between 821 place conductor layer of 822 place conductor layer of holding wire and touch-control sensing electrode realizes electrical connection.
In some optional implementations, in the integrated touch-control display panel of the application, each touch-control emission electrode 811 exists
Public electrode can be multiplexed with during display.In these optional implementations, integrated circuit 812 can be further used for
Public voltage signal is provided to each touch-control emission electrode 811 during display so that be formed in array base palte 810 and color membrane substrates
The electric field that the liquid crystal molecule in liquid crystal layer (not shown) between 820 can be formed in public electrode and each pixel electrode is made
Lower deflection is used, so as to realize the display of predetermined picture.
Disclosed herein as well is a kind of integrated touch control display apparatus, which may include integrated touch-control display surface as above
Plate.It will be appreciated by those skilled in the art that integrated touch control display apparatus are except including integrated touch-control display panel as above
Outside, some other known structures can also be included.For the emphasis for not obscuring the application, will no longer to known to these
Structure is described further.
It will be appreciated by those skilled in the art that utility model scope involved in the application, however it is not limited to above-mentioned technology
The technical scheme of the particular combination of feature, at the same should also cover without departing from the utility model conceive in the case of, by
Other technical schemes that above-mentioned technical characteristic or its equivalent feature carry out combination in any and formed.Such as features described above and the application
Disclosed in (but not limited to) there is the technical scheme that the technical characteristic of similar functions replaced mutually and formed.
Claims (16)
1. a kind of integrated touch-control display panel, it is characterised in that including touch-control emission electrode array, touch-control sensing electrod-array,
Black matrix" and colored filter；
The touch-control emission electrode array includes the multiple touch-control emission electrode for arranging in the first direction；
The touch-control sensing electrod-array includes the multiple touch-control sensing electrode for arranging in a second direction；
Any one touch-control sensing electrode is launched to the orthographic projection of the touch-control emission electrode array with any one touch-control
Electrode is overlapped at least in part；
The black matrix" includes multiple black matrix" rows and multiple along the second direction along first direction arrangement
The black matrix" row of arrangement；
Each black matrix" row and colored filter described in each black matrix" column split are forming multiple array arrangements
Display pixel；
The touch-control sensing electrode is mesh electrode, and the black matrix" covers the mesh electrode at least in part to described
The orthographic projection of black matrix".
2. integrated touch-control display panel according to claim 1, it is characterised in that：
The mesh electrode is wire mesh electrode.
3. integrated touch-control display panel according to claim 2, it is characterised in that：
The touch-control sensing electrode includes multiple first wire mesh grids；
In same touch-control sensing electrode, have along two adjacent the first wire mesh grids of the first direction overlapped
Side.
4. integrated touch-control display panel according to claim 2, it is characterised in that：
The touch-control sensing electrode also includes a plurality of first metal contact wires；
In same touch-control sensing electrode, pass through at least one institute along two adjacent the first wire mesh grids of the second direction
State the electrical connection of the first metal contact wires.
5. integrated touch-control display panel according to claim 4, it is characterised in that：
First wire mesh grid is concave polygon.
6. integrated touch-control display panel according to claim 2, it is characterised in that：
The touch-control sensing electrode includes multiple second wire mesh grids；
In same touch-control sensing electrode, have along two adjacent the second wire mesh grids of the first direction overlapped
In side, and same touch-control sensing electrode, have along two adjacent the second wire mesh grids of the second direction overlapped
Side.
7. integrated touch-control display panel according to claim 6, it is characterised in that：
Second wire mesh grid is concave polygon.
8. the integrated touch-control display panel according to claim 6 or 7, it is characterised in that：
Second wire mesh grid is zhou duicheng tuxing；
Second wire mesh grid is with regard to the first axis of symmetry axial symmetry for extending along the first direction, and second metal
Wire grid is with regard to the second axis of symmetry axial symmetry for extending along the second direction.
9. the integrated touch-control display panel according to claim 2-7 any one, it is characterised in that the integrated touch-control shows
Show that panel also includes a plurality of touch-control sensing holding wire；
The first end of each touch-control sensing holding wire should be connected with each touch-control sensing electrode pair.
10. integrated touch-control display panel according to claim 9, it is characterised in that：
The touch-control sensing holding wire is arranged on same conductor layer with the touch-control sensing electrode.
11. integrated touch-control display panels according to claim 9, it is characterised in that include：
Array base palte, the touch-control emission electrode array are arranged on the array base palte；And
Color membrane substrates, the touch-control sensing electrod-array are arranged on the color membrane substrates.
12. integrated touch-control display panels according to claim 11, it is characterised in that：
The data wire for multi-strip scanning line being also formed with the array base palte and being intersected with each scan line；
The multi-strip scanning line is arranged along the first direction, and a plurality of data lines is arranged along the second direction.
13. integrated touch-control display panels according to claim 11, it is characterised in that：
The data wire for multi-strip scanning line being also formed with the array base palte and being intersected with each scan line；
The multi-strip scanning line is arranged along the second direction, and a plurality of data lines is arranged along the first direction.
14. integrated touch-control display panels according to claim 9, it is characterised in that the integrated touch-control display panel is also
Including integrated circuit and a plurality of touch scanning signals line；
The first end of each touch scanning signals line is corresponding with each touch-control emission electrode to be connected, each touch-control scanning letter
The second end connection corresponding with the integrated circuit of number line；
The second end connection corresponding with the integrated circuit of each touch-control sensing holding wire；
The integrated circuit is for providing touch scanning signals to each touch-control emission electrode during touch-control and receives each institute
State the touch-control sensing signal of touch-control sensing electrode.
15. integrated touch-control display panels according to claim 14, it is characterised in that：
Each touch-control emission electrode is multiplexed with public electrode during showing；
The integrated circuit is additionally operable to provide public voltage signal to each touch-control emission electrode during the display.
16. a kind of integrated touch control display apparatus, it is characterised in that include integrated tactile as described in claim 1-15 any one
Control display floater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201620819924.9U CN206058157U (en) | 2016-07-29 | 2016-07-29 | Integrated touch-control display panel and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620819924.9U CN206058157U (en) | 2016-07-29 | 2016-07-29 | Integrated touch-control display panel and display device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108803948A (en) * | 2018-08-03 | 2018-11-13 | 深圳市奥拓电子股份有限公司 | LED lamp bead, LED touch modules and LED display |
| CN109725767A (en) * | 2017-10-31 | 2019-05-07 | 乐金显示有限公司 | Display device with touch sensor and the method for manufacturing the display device |
-
2016
- 2016-07-29 CN CN201620819924.9U patent/CN206058157U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109725767A (en) * | 2017-10-31 | 2019-05-07 | 乐金显示有限公司 | Display device with touch sensor and the method for manufacturing the display device |
| CN109725767B (en) * | 2017-10-31 | 2022-10-28 | 乐金显示有限公司 | Display device having touch sensor and method of manufacturing the same |
| CN108803948A (en) * | 2018-08-03 | 2018-11-13 | 深圳市奥拓电子股份有限公司 | LED lamp bead, LED touch modules and LED display |
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