CN104536639A - Sensing control structure, infrared electromagnetic touch screen and double-contact liquid crystal integrated machine - Google Patents
Sensing control structure, infrared electromagnetic touch screen and double-contact liquid crystal integrated machine Download PDFInfo
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- CN104536639A CN104536639A CN201410802030.4A CN201410802030A CN104536639A CN 104536639 A CN104536639 A CN 104536639A CN 201410802030 A CN201410802030 A CN 201410802030A CN 104536639 A CN104536639 A CN 104536639A
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- 239000004973 liquid crystal related substance Substances 0.000 title abstract 3
- XRHGYUZYPHTUJZ-UHFFFAOYSA-N 4-chlorobenzoic acid Chemical compound 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OC(=O)C1=CC=C(Cl)C=C1 XRHGYUZYPHTUJZ-UHFFFAOYSA-N 0.000 claims abstract description 28
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 18
- 238000005282 brightening Methods 0.000 claims description 31
- 239000006059 cover glass Substances 0.000 claims description 11
- 210000003660 Reticulum Anatomy 0.000 claims description 10
- 239000011521 glass Substances 0.000 claims description 10
- 239000005341 toughened glass Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 230000001939 inductive effect Effects 0.000 description 8
- BQCADISMDOOEFD-UHFFFAOYSA-N silver Chemical compound 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Classifications
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- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/046—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by electromagnetic means
Abstract
The invention relates to a sensing control structure, an infrared electromagnetic touch screen and a double-contact liquid crystal integrated machine. The sensing control structure comprises an antenna board provided with an electromagnetic induction antenna array and further comprises a PCBA provided with a processor, wherein the processor is electrically connected with the electromagnetic induction antenna array, and the PCBA is connected with a computer through a data line. The sensing control structure, the infrared electromagnetic touch screen and the double-contact liquid crystal integrated machine have the advantages of being low in cost, high in production efficiency, low in impedance and high in control accuracy.
Description
Technical field
The present invention relates to touching technique.
Background technology
Electromagnetical type touch screen, because the information of the position about felt pen that its positioning precision is high, can detect is many, and after installing, do not affect the brightness of display screen, therefore it is more and more widely used on portable computer and handwriting pad.
Current electromagnetical type touch screen is generally made up of induction control structure and time writer, described induction control structure comprises antenna plate, FPC, processor and computing machine (PC), antenna plate is by FPC connection handling device, and processor connects computing machine by data line (as USB line).Because signal demand just can enter into computing machine by FPC, processor and data line, cause impedance comparison large, control accuracy is low.Moreover, electronic circuit in current antenna plate has copper cash scheme and silver-colored line scheme to make,--------------------------------the various manufacturing process flow of visual examination that external form is die-cut--electrical measurement--completes pre-electroplating treatment stripping development-laser engraving black sky (PTH) Copper Foil, and cost is high in pressure reinforcement in plating aftertreatment in plating to paste epiphragma (or ink printing) in AOI--pre-treatment in exposure to press dry film in pre-treatment in copper facing in boring to pass through project file; Production efficiency is low, and learn that impedance is large according to market survey copper cash and silver-colored line scheme, the scheme yield of copper cash reaches about 40%; The scheme yield of silver line reaches about 70%; Electronic circuit in antenna plate is formed with plastic material brush silver slurry, brush silver slurry percent 40% fraction defective, and plastic material brush silver slurry is at high temperature easily aging, and the life-span is short; On assembly technology, silver slurry frangibility, scratch cause bad etc.
Further, current electromagnetical type touch screen function singleness, only has electromagnetic touch function.
Summary of the invention
An object of the present invention is to propose a kind of induction control structure, and it can solve the large problem of electromagnetical type touch screen impedance.
Two of object of the present invention is to propose a kind of infra-red electromagnetic touch-screen, and it can solve the single problem of touch function.
Three of object of the present invention is to propose a kind of two touch LCD all-in-one, and it can solve the single problem of touch function.
One of in order to achieve the above object, the technical solution adopted in the present invention is as follows:
Induction control structure, it is applied to electromagnetic touch assembly, and it comprises the antenna plate being provided with electromagnetic induction aerial array, and it also comprises the PCBA board being pasted with processor, described processor and electromagnetic induction aerial array are electrically connected, and described PCBA board is connected with computing machine by data line.
Preferably, described electromagnetic induction aerial array comprises first day linear array in X direction and the second aerial array along Y-direction, and first day linear array is mutually vertical with the second aerial array.
In order to achieve the above object two, the technical solution adopted in the present invention is as follows:
Infra-red electromagnetic touch-screen, it comprises infrared touch frame assembly, cover glass, be positioned at the screen fixed frame of front side, be assemblied in the light emitting source of the described screen fixed frame left and right sides, be positioned at the back cover of rear side, liquid-crystalline glasses and electromagnetic touch assembly, liquid-crystalline glasses is stacked in the front side of electromagnetic touch assembly, screen fixed frame and back cover fixedly mount, be fixed between screen fixed frame and back cover to make liquid-crystalline glasses and electromagnetic touch assembly, infrared touch frame assembly is fixed on front side of described screen fixed frame, cover glass is fixed between infrared touch frame assembly and screen fixed frame, described electromagnetic touch assembly comprises the antenna plate being provided with electromagnetic induction aerial array stacked successively from front to back, reflector plate, diffuser plate, light guide plate, the first brightening piece, the second brightening piece and the 3rd brightening piece, processor in described electromagnetic induction aerial array and a PCBA board is electrically connected, and described PCBA board is connected with computing machine by data line.
Preferably, described light guide plate is edge-type light guide plate.Described first brightening piece and the 3rd brightening piece are 0 ° of brightening piece, and described second brightening piece is 90 ° of brightening pieces.Described 3rd brightening piece is 0 ° of brightening piece.Described light emitting source is LED lamp bar.
In order to achieve the above object three, the technical solution adopted in the present invention is as follows:
Two touch LCD all-in-one, it comprises infra-red electromagnetic touch-screen as described in the present invention, bonnet, control circuit module, remote control panel, loudspeaker and keypad, bonnet is fixedly mounted on the back side of back cover, control circuit module is between bonnet and back cover, and remote control panel, loudspeaker and keypad are arranged on infrared touch frame assembly; Described control circuit module comprises sequential control plate, constant current plate, TV motherboard, power panel and computer power plate, power panel is sequential control plate, PCBA board, constant current plate, TV motherboard, computer power plate, remote control panel, keypad, loudspeaker, light emitting source and infrared touch frame assembly provide operating voltage, computer power plate provides operating voltage for computing machine, and sequential control plate, constant current plate, TV motherboard, infrared touch frame assembly, light emitting source are all connected with computing machine.
The present invention has following beneficial effect:
Induction control structure cost is low, production efficiency is high, impedance is little, control accuracy is high, thus make infra-red electromagnetic formula touch-screen and two touch LCD all-in-one also possess same advantage, and, infra-red electromagnetic formula touch-screen and two touch LCD all-in-one have infrared touch control and electromagnetic touch controls two kinds of modes, can enrich touch experience.
Accompanying drawing explanation
Fig. 1 is the structural representation of the induction control structure of present pre-ferred embodiments;
Fig. 2 is the fractionation structural representation of the infra-red electromagnetic touch-screen of present pre-ferred embodiments;
Fig. 3 is the fractionation structural representation of two touch LCD all-in-ones of present pre-ferred embodiments.
Reference numeral: 1, back cover; 3, reflector plate; 4, diffuser plate; 5, light guide plate; 6, the first brightening piece; 7, the second brightening piece; 8, the 3rd brightening piece; 9, liquid-crystalline glasses; 10, light emitting source; 11, screen fixed frame; 12, cover glass; 13, infrared touch frame assembly; 14, sequential control plate; 16, TV motherboard; 17, constant current plate; 18, power panel; 19, computer power plate; 21, loudspeaker; 22, keypad; 23, remote control panel; 24, bonnet; 100, antenna plate; 200, PCBA board; 300, data line; 400, computing machine.
Embodiment
Below, by reference to the accompanying drawings and embodiment, the present invention is described further.
As shown in Figure 1, a kind of induction control structure being applied to electromagnetic touch assembly, it comprises the antenna plate 100 being provided with electromagnetic induction aerial array and the PCBA board 200 being pasted with processor.Described processor and electromagnetic induction aerial array are electrically connected, and described PCBA board 200 is connected with computing machine 400 by data line 300.Described electromagnetic induction aerial array comprises first day linear array in X direction and the second aerial array along Y-direction, and first day linear array is mutually vertical with the second aerial array.
The manufacturing process of PCBA board 200 is as follows:
First make PCB, manufacture need--be opened punching die processed, throwing half tone-laser engraving, removes print material by project file sawing sheet, brill pilot hole, clean--channel check, test--applies solder resist or OSP--checks that manufacturing process flow completes; PCBA then pastes components and parts (comprising processor) by PCB supplied materials detection-SMT--checks that---reflow soldering---inspection---point plate is (if an entire plate, then do not need) examine manufacturing process flow and complete---functional test (ICT)---end, to paste component locations very accurate, solder joint is exquisite, and yield is high.
The present embodiment adopts the scheme of the upper processor of PCBA board attachment, and make finished product yield reach more than 99.9%, the life-span is long, and production efficiency is high, manufactures PCBA cost lower than manufacture FPC cost.
As shown in Figure 2; the present embodiment also proposes a kind of infra-red electromagnetic touch-screen, and it comprises infrared touch frame assembly 13, cover glass 12, the screen fixed frame 11 being positioned at front side, the light emitting source 10 being assemblied in described screen fixed frame 11 left and right sides, the back cover 1 being positioned at rear side, liquid-crystalline glasses 9 and electromagnetic touch assembly.Liquid-crystalline glasses 9 is stacked in the front side of electromagnetic touch assembly, and screen fixed frame 11 is fixedly mounted by screw and back cover 1, is fixed between screen fixed frame 11 and back cover 1 to make liquid-crystalline glasses 9 and electromagnetic touch assembly.Infrared touch frame assembly 13 is fixed on front side of described screen fixed frame 11, and cover glass 12 is fixed between infrared touch frame assembly 13 and screen fixed frame 11.
Concrete, described electromagnetic touch assembly comprises antenna plate 100 as shown in Figure 1 stacked successively from front to back, reflector plate 3, diffuser plate 4, light guide plate 5, first brightening piece 6, second brightening piece 7 and the 3rd brightening piece 8.Described light guide plate 5 is edge-type light guide plate.First brightening piece 6 and the 3rd brightening piece 8 of the present embodiment are 0 ° of brightening piece, and the second brightening piece 7 is 90 ° of brightening pieces.Shown in composition graphs 1, the processor in described electromagnetic induction aerial array and PCBA board 200 is electrically connected, and described PCBA board 200 is connected with computing machine 400 by data line.
The light emitting source 10 of the present embodiment adopts LED lamp bar, and cover glass 12 adopts tempered glass.
As shown in Figure 3, the present embodiment also proposes a kind of two touch LCD all-in-one, it comprises infra-red electromagnetic touch-screen, bonnet 24, control circuit module, remote control panel 23, loudspeaker 21 and keypad 22 as shown in Figure 2, bonnet 24 is fixedly mounted on the back side of back cover 1, control circuit module is between bonnet 24 and back cover 1, and remote control panel 23, loudspeaker 21 and keypad 22 are arranged on the bottom of infrared touch frame assembly 13.
Concrete, the control circuit module of the present embodiment comprises sequential control plate 14, PCBA board 200 as shown in Figure 1, constant current plate 17, TV motherboard 16, power panel 18, computer power plate 19 and computing machine 400, power panel 18 is sequential control plate 14, PCBA board 200, constant current plate 17, TV motherboard 16, computer power plate 19, remote control panel 23, keypad 22, loudspeaker 21, light emitting source 10 and infrared touch frame assembly 13 provide operating voltage, computer power plate 19 provides operating voltage for computing machine 400, sequential control plate 14, PCBA board 200, constant current plate 17, TV motherboard 16, infrared touch frame assembly 13, light emitting source 10 is all connected with computing machine 400.Shown in composition graphs 1, the electromagnetic induction aerial array in the antenna plate 100 of the present embodiment is also electrically connected with the processor in PCBA board 200, and PCBA board 200 is also connected with computing machine 400 by data line.
The course of work of the present embodiment is as follows:
When user needs to control with infrared touch, only need by finger or the pen paddling on infrared touch frame assembly 13 not with electromagnetism, computing machine 400 can recognize the working signal of infrared touch frame assembly 13 automatically; When user needs with electromagnetism touch control; only need use time writer paddling on cover glass; user uses time writer on cover glass during paddling; the signal intensity of the electromagnetic induction aerial array in antenna plate 100 can be caused; first the signal of change passes to PCBA board 200 and carries out rough handling; then the signal after process is given to computing machine 400 and is further processed by PCBA board 200 again, thus realizes precisely controlling.Like this, user just can switch two kinds of touch modes as required, thus promotes Consumer's Experience.
For a person skilled in the art, according to technical scheme described above and design, other various corresponding change and distortion can be made, and all these change and distortion all should belong within the protection domain of the claims in the present invention.
Claims (9)
1. respond to control structure, it is applied to electromagnetic touch assembly, it comprises the antenna plate being provided with electromagnetic induction aerial array, it is characterized in that, also comprise the PCBA board being pasted with processor, described processor and electromagnetic induction aerial array are electrically connected, and described PCBA board is connected with computing machine by data line.
2. respond to control structure as claimed in claim 1, it is characterized in that, described electromagnetic induction aerial array comprises first day linear array in X direction and the second aerial array along Y-direction, and first day linear array is mutually vertical with the second aerial array.
3. infra-red electromagnetic touch-screen, it is characterized in that, comprise infrared touch frame assembly, cover glass, be positioned at the screen fixed frame of front side, be assemblied in the light emitting source of the described screen fixed frame left and right sides, be positioned at the back cover of rear side, liquid-crystalline glasses and electromagnetic touch assembly, liquid-crystalline glasses is stacked in the front side of electromagnetic touch assembly, screen fixed frame and back cover fixedly mount, be fixed between screen fixed frame and back cover to make liquid-crystalline glasses and electromagnetic touch assembly, infrared touch frame assembly is fixed on front side of described screen fixed frame, cover glass is fixed between infrared touch frame assembly and screen fixed frame, described electromagnetic touch assembly comprises the antenna plate being provided with electromagnetic induction aerial array stacked successively from front to back, reflector plate, diffuser plate, light guide plate, the first brightening piece, the second brightening piece and the 3rd brightening piece, processor in described electromagnetic induction aerial array and a PCBA board is electrically connected, and described PCBA board is connected with computing machine by data line.
4. infra-red electromagnetic touch-screen as claimed in claim 3, it is characterized in that, described light guide plate is edge-type light guide plate.
5. infra-red electromagnetic touch-screen as claimed in claim 3, it is characterized in that, described first brightening piece and the 3rd brightening piece are 0 ° of brightening piece, and described second brightening piece is 90 ° of brightening pieces.
6. infra-red electromagnetic touch-screen as claimed in claim 3, it is characterized in that, described 3rd brightening piece is 0 ° of brightening piece.
7. infra-red electromagnetic touch-screen as claimed in claim 3, it is characterized in that, described light emitting source is LED lamp bar.
8. infra-red electromagnetic touch-screen as claimed in claim 3, it is characterized in that, described cover glass is tempered glass.
9. pair touch LCD all-in-one, it is characterized in that, comprise the infra-red electromagnetic touch-screen as described in any one of claim 3-8, bonnet, control circuit module, remote control panel, loudspeaker and keypad, bonnet is fixedly mounted on the back side of back cover, control circuit module is between bonnet and back cover, and remote control panel, loudspeaker and keypad are arranged on infrared touch frame assembly; Described control circuit module comprises sequential control plate, constant current plate, TV motherboard, power panel and computer power plate, power panel is sequential control plate, PCBA board, constant current plate, TV motherboard, computer power plate, remote control panel, keypad, loudspeaker, light emitting source and infrared touch frame assembly provide operating voltage, computer power plate provides operating voltage for computing machine, and sequential control plate, constant current plate, TV motherboard, infrared touch frame assembly, light emitting source are all connected with computing machine.
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| CN201410802030.4A CN104536639B (en) | 2014-12-19 | 2014-12-19 | Incude control structure, infra-red electromagnetic touch screen and double touch LCD all-in-one machines |
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