CN204331678U - A kind of TFT structure capacitive touch screen - Google Patents
A kind of TFT structure capacitive touch screen Download PDFInfo
- Publication number
- CN204331678U CN204331678U CN201420793354.1U CN201420793354U CN204331678U CN 204331678 U CN204331678 U CN 204331678U CN 201420793354 U CN201420793354 U CN 201420793354U CN 204331678 U CN204331678 U CN 204331678U
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- tft structure
- electrode
- bottom electrode
- top electrode
- touch screen
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Abstract
The utility model discloses a kind of TFT structure capacitive touch screen, comprise the panel of TFT structure, the panel of TFT structure is covered with bottom electrode, adhered to each other by optical cement between the panel of TFT structure and bottom electrode, bottom electrode is connected with top electrode, and bottom electrode is provided with the projection connecting top electrode, and top electrode is provided with the groove connecting bottom electrode, the top of projection is saw-tooth-type structures, and bottom portion of groove is similarly the saw-tooth-type structures matched with the saw-tooth-type structures on projection; On top electrode, adhesion has tab, and tab is covered with backboard, is adhered to each other between tab and backboard by optical cement.In the utility model, panel and backboard can well protect inner bottom electrode, top electrode, the compact conformation of whole touch-screen and simple; Connection in addition on the one hand between bottom electrode and top electrode is more tight, has good electric conductivity and Information Conduction function.
Description
Technical field
the utility model relates to touch screen technology field, more particularly relates to a kind of TFT structure capacitive touch screen.
Background technology
Modern society widely uses due to touch-screen, people can not use keyboard and directly carry out hand-written, along with the development of capacitive touch screen, the basis of traditional resistive touch screen adds the ability of finger direct control, obtains in the mobile phone, panel computer in modern times and use widely.
Capacitive touch screen on the mobile phone sold in the market or flat board, is mostly undertaken fitting realizing touch function by ITO electro-conductive glass and top layer tempered glass.Although there is tempered glass on the capacitive touch screen surface of this structure, extraordinary crash resistance can be had, but but there is no the protection of tempered glass in lower floor, so once mobile phone or panel computer are dropped, cause the destruction of understructure, mobile phone or flat circuits just will cannot use again; This structure adopts electro-conductive glass to conduct electricity, once mobile phone or panel computer are dropped, even there is the protection of tempered glass in addition; but unavoidable ITO electro-conductive glass can not be damaged; once ITO electro-conductive glass is damaged, conduction is just obstructed, and touch-screen just can not normally use.
Utility model content
The technical matters that the utility model solves is to provide a kind of TFT structure capacitive touch screen; this TFT capacitive touch screen has good electric conductivity and intracellular signaling performance, and the external structure of whole touch-screen can play good defencive function to the conductive structure of the inside.
For the technical scheme solving the problems of the technologies described above employing is: a kind of TFT structure capacitive touch screen, comprise the panel of TFT structure, the panel of TFT structure is covered with bottom electrode, adhered to each other by optical cement between the panel of TFT structure and bottom electrode, bottom electrode is connected with top electrode, bottom electrode is provided with the projection connecting top electrode, top electrode is provided with the groove holding bottom electrode projection, the top of projection is saw-tooth-type structures, and bottom portion of groove is similarly the saw-tooth-type structures matched with the saw-tooth-type structures on projection; On top electrode, adhesion has tab, and tab is covered with backboard, is adhered to each other between tab and backboard by optical cement.
Further, also comprise a flexible PCB, flexible circuit plate holder overlays between described top electrode and described tab, and flexible PCB is electrically connected with described top electrode, and flexible PCB is provided with circuit line, and the end of flexible PCB is provided with contact electrode.
Further, described optical cement is OCA optical cement, and its thickness is 0.02mm.
Further, described bottom electrode is the one in ito film or ito glass.
Further, the thickness of described ito film is 0.08-0.2mm.
Further, the thickness of described ito glass is 0.08-0.2 mm.
Further, described in power on very ito film, the thickness of ito film is 0.04-0.1 mm.
The beneficial effects of the utility model are:
TFT structure capacitive touch screen of the present utility model; it comprises the panel of TFT structure, bottom electrode, top electrode, tab and backboard; these parts fit together successively; for bottom electrode and top electrode are positioned at the centre position of whole touch-screen; panel is positioned at the upper end of touch-screen; backboard is positioned at the lower end of touch-screen, and panel and backboard can well protect inner bottom electrode, top electrode, the compact conformation of whole touch-screen and simple.Bottom electrode is provided with the projection connecting top electrode on the one hand in addition, top electrode is provided with the groove connecting bottom electrode, the top of projection is saw-tooth-type structures, bottom portion of groove is similarly the saw-tooth-type structures matched with the saw-tooth-type structures on projection, the connection between bottom electrode and top electrode can be made so more tight, there is good electric conductivity and Information Conduction function.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model lower electrode arrangement schematic diagram.
Fig. 3 is the utility model upper electrode arrangement schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail:
As shown in Figure 1 to Figure 3, a kind of TFT structure capacitive touch screen, comprise the panel 10 of TFT structure, the panel 10 of TFT structure is covered with bottom electrode 30, adhered to each other by optical cement 20 between the panel 10 of TFT structure and bottom electrode 30, bottom electrode 30 is connected with top electrode 40, bottom electrode 30 is provided with the projection 31 connecting top electrode 40, top electrode 40 is provided with the groove 41 holding bottom electrode 30 projection 31, the top of projection 31 is saw-tooth-type structures 80, the saw-tooth-type structures matched with the saw-tooth-type structures on projection 31 is similarly bottom groove 41, the connection between bottom electrode and top electrode can be made so tightr, there is good electric conductivity and Information Conduction function.On top electrode 40, adhesion has tab 50, tab 50 is covered with backboard 60, is adhered to each other between tab 50 and backboard 60 by optical cement 20.Optical cement 20 is OCA optical cement, and its thickness is 0.02mm; Bottom electrode 30 is the one in ito film or ito glass, if bottom electrode 30 is ito film, so the thickness of ito film is 0.08-0.2mm, if bottom electrode 30 is ito glass, so the thickness of ito glass is 0.08-0.2 mm; Top electrode 40 is ito film, and the thickness of ito film is 0.04-0.1 mm.
Also comprise a flexible PCB 70, flexible PCB 70 folder overlays between top electrode 40 and tab 50, and flexible PCB 70 is electrically connected with top electrode 40, and flexible PCB 70 is provided with circuit line, and the end of flexible PCB 70 is provided with contact electrode.
TFT structure touch-screen of the present utility model improves prior art; TFT structure touch-screen comprises the panel of TFT structure, bottom electrode, top electrode, tab and backboard; these parts fit together successively; for bottom electrode and top electrode are positioned at the centre position of whole touch-screen; panel is positioned at the upper end of touch-screen; backboard is positioned at the lower end of touch-screen, and panel and backboard can well protect inner bottom electrode, top electrode, the compact conformation of whole touch-screen and simple.
The foregoing is only preferred implementation of the present utility model; not thereby this scope of the claims of the present utility model is limited; every utilize the utility model instructions and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in this scope of patent protection of the present utility model.
Claims (7)
1. a TFT structure capacitive touch screen, it is characterized in that: the panel (10) comprising TFT structure, the panel (10) of TFT structure is covered with bottom electrode (30), adhered to each other by optical cement (20) between the panel (10) of TFT structure and bottom electrode (30), bottom electrode (30) is connected with top electrode (40), bottom electrode (30) is provided with the projection (31) connecting top electrode (40), top electrode (40) is provided with the groove (41) holding bottom electrode (30) projection (31), the top of projection (31) is saw-tooth-type structures, groove (41) bottom is similarly the saw-tooth-type structures matched with the saw-tooth-type structures on projection (31), the upper adhesion of top electrode (40) has tab (50), tab (50) is covered with backboard (60), is adhered to each other between tab (50) and backboard (60) by optical cement (20).
2. a kind of TFT structure capacitive touch screen according to claim 1, it is characterized in that: also comprise a flexible PCB (70), flexible PCB (70) folder overlays between described top electrode (40) and described tab (50), flexible PCB (70) is electrically connected with described top electrode (40), flexible PCB (70) is provided with circuit line, and the end of flexible PCB (70) is provided with contact electrode.
3. a kind of TFT structure capacitive touch screen according to claim 1, is characterized in that: described optical cement (20) is OCA optical cement, and its thickness is 0.02mm.
4. a kind of TFT structure capacitive touch screen according to claim 1, is characterized in that: described bottom electrode (30) is the one in ito film or ito glass.
5. a kind of TFT structure capacitive touch screen according to claim 4, is characterized in that: the thickness of described ito film is 0.08-0.2mm.
6. a kind of TFT structure capacitive touch screen according to claim 4, is characterized in that: the thickness of described ito glass is 0.08-0.2 mm.
7. a kind of TFT structure capacitive touch screen according to claim 1, is characterized in that: described top electrode (40) is ito film, the thickness of ito film is 0.04-0.1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420793354.1U CN204331678U (en) | 2014-12-16 | 2014-12-16 | A kind of TFT structure capacitive touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420793354.1U CN204331678U (en) | 2014-12-16 | 2014-12-16 | A kind of TFT structure capacitive touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204331678U true CN204331678U (en) | 2015-05-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420793354.1U Expired - Fee Related CN204331678U (en) | 2014-12-16 | 2014-12-16 | A kind of TFT structure capacitive touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204331678U (en) |
-
2014
- 2014-12-16 CN CN201420793354.1U patent/CN204331678U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160512 Address after: 518103, Shenzhen, Guangdong, Fuyong Baoan District Street on the south side of Great Ocean Road fourth, 1 Patentee after: Dijing Optoelectronics (Shenzhen) Co.,Ltd. Address before: 518108 A5 building, Phoenix third industrial park, Fuyong street, Guangdong, Shenzhen, Patentee before: SHENZHEN DJN OPTRONICS Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20211216 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |