CN103278965B - A kind of electromagnetic touch-control backlight module and liquid crystal indicator - Google Patents
A kind of electromagnetic touch-control backlight module and liquid crystal indicator Download PDFInfo
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- CN103278965B CN103278965B CN201210576947.8A CN201210576947A CN103278965B CN 103278965 B CN103278965 B CN 103278965B CN 201210576947 A CN201210576947 A CN 201210576947A CN 103278965 B CN103278965 B CN 103278965B
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- electromagnetic touch
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- glue frame
- control backlight
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Abstract
The invention discloses a kind of electromagnetic touch-control backlight module and liquid crystal indicator.Wherein, described electromagnetic touch-control backlight module comprises a glue frame and is embedded in the electromagnetic touch plate on described glue frame, and the yield strength of the material of described glue frame is more than or equal to 90MPa.In electromagnetic touch-control backlight module of the present invention, because glue frame also can realize the mechanical support function of original backboard, therefore backboard can be omitted.Omit the electromagnetic touch backlight module of backboard, fundamentally stopped the interference of backboard to electromagnetic touch, and avoid the design difficulty brought because of back plate design, also reduce material cost simultaneously.
Description
Technical field
The present invention relates to flat panel display, particularly a kind of electromagnetic touch-control backlight module and liquid crystal indicator.
Background technology
Electromagnetic touch-control input media, as a kind of input equipment, realizes information input by electromagnetic touch plate and special electromagnetic touch pen by handwriting input.When electromagnetic touch pen is write in the effective coverage of electromagnetic touch plate, the information such as the trace information that electromagnetic touch plate acquisition electromagnetic touch pen is write and pressure size, and send messaging device to.Electromagnetic touch-control input technology has the advantages such as precision is high, accurate positioning, is widely used on the mobile electronic product such as e-book, Hand Personal Computer.
Usually, electromagnetic touch-control liquid crystal indicator comprises a LCDs and an electromagnetic touch-control backlight module.As shown in Figure 1, electromagnetic touch-control backlight module 100 comprises backboard 101, glue frame 102 and an electromagnetic touch plate 103.
As shown in Figure 2, in electromagnetic touch-control backlight module 100 after assembling, described glue frame 102 is positioned at the side of described backboard 101, and described electromagnetic touch plate 103 is fixed on the opposite side of described backboard 101.In electromagnetism touch touch-control backlight module, described electromagnetic touch plate 103 be with the electromagnetic induction of the time writer being positioned at described backboard 101 side to realize touch-control, therefore strictly must control any various factors that may disturb or weaken the electromagnetic induction between electromagnetic touch plate 103 and time writer.
Usually, backboard is all made up of the magnetic ferromagnetic material of tool, when electromagnetic touch plate and the electromagnetic touch pen being positioned at its opposite carry out touch-control work, electromagnetic force between electromagnetic touch plate and electromagnetic touch pen needs through backboard, and the backboard therefore between electromagnetic touch plate and electromagnetic touch pen just becomes interference and affects a key factor of electromagnetic touch.
For this reason, thinning backboard and the technology in backboard upper shed have been there is.Although these technology reduce the interference of backboard to electromagnetic touch, for the design of backboard brings very large limitation.For this reason, be necessary to develop a kind of new electromagnetic touch-control backlight module to reduce the interference to electromagnetic touch, improve the flexible design degree of electromagnetic touch backlight module simultaneously.
Summary of the invention
The invention provides a kind of electromagnetic touch-control backlight module and liquid crystal indicator, to solve the problem that backboard disturbs electromagnetic touch, reduce the design difficulty of electromagnetic touch-control backlight module simultaneously.
For solving above-mentioned technology for topic, the invention provides a kind of electromagnetic touch-control backlight module and comprising:
One glue frame, the yield strength of the material of described glue frame is more than or equal to 90MPa; And
Be embedded in the electromagnetic touch plate on described glue frame.
Optionally, the yield strength of the material of described glue frame is greater than 260MPa.
Optionally, the material of described glue frame is nonmagnetic substance.
Optionally, the material of described glue frame is aluminium alloy or magnesium alloy.
Optionally, the proportion of the material of described glue frame is less than or equal to 7.82g/cm
3.
Optionally, described glue frame material is the one of carbon fibre, melamine, acrylic or PVC.
Optionally, the reflector plate be installed on described electromagnetic touch plate is also comprised.
Optionally, the reflection horizon be coated on described electromagnetic touch plate is also comprised.
Optionally, described electromagnetic touch plate is embedded on described glue frame by screw or buckle.
Accordingly, the present invention also provides a kind of liquid crystal indicator to comprise:
One LCDs; And
Described electromagnetic touch-control backlight module.
Electromagnetic touch-control backlight module provided by the present invention comprises a glue frame and is embedded in the electromagnetic touch plate on described glue frame, and wherein, the yield strength of the material of described glue frame is more than or equal to 90MPa.Electromagnetic touch plate in above-mentioned electromagnetic touch-control backlight module is arranged on glue frame, at electromagnetic touch plate be positioned at time writer on electromagnetic touch plate operationally, the acting force of electromagnetic touch therebetween can not penetrate the backboard with ferromagnetic material, therefore there is not the interference of backboard to electromagnetic touch.In addition, because the material yield strength of described glue frame is more than or equal to 90MPa, described glue frame has the intensity identical with prior art dorsulum, only use glue frame just can reach the holding power of original backboard, therefore can omit backboard, naturally also there is not the opening of backboard or thinning relevant design, greatly reduce the design difficulty of electromagnetic touch-control backlight module, simultaneously because eliminate backboard, the material cost of electromagnetic touch-control backlight module can also be reduced.
Accompanying drawing explanation
Fig. 1 is the composition schematic diagram of electromagnetic touch-control backlight module in prior art;
Fig. 2 is the section of structure of electromagnetic touch-control backlight module in prior art;
Fig. 3 is the composition schematic diagram of the electromagnetic touch-control backlight module of one embodiment of the invention;
Fig. 4 is the section of structure of the electromagnetic touch-control backlight module of one embodiment of the invention;
Fig. 5 is the vertical view of the electromagnetic touch plate of another embodiment of the present invention;
Fig. 6 is the section of structure of the electromagnetic touch-control backlight module in another enforcement of the present invention;
Fig. 7 is the section of structure of the liquid crystal indicator of further embodiment of this invention.
Embodiment
Core concept of the present invention is, improves the intensity of glue frame material, and is embedded in by electromagnetic touch plate on described glue frame, reduce the interference of backboard to electromagnetic touch of ferromagnetic material with this.Simultaneously, because the intensity of glue frame material is enough, glue frame also can realize the mechanical support effect completed by original backboard, therefore in electromagnetic touch-control backlight module of the present invention, backboard can be omitted, thus avoid the design difficulty brought because of back plate design, also reduce material cost simultaneously.
In order to make object of the present invention, technical scheme and advantage clearly, elaborate further below in conjunction with accompanying drawing.
As shown in Figure 3, the electromagnetic touch-control backlight module 200 of one embodiment of the invention comprises a glue frame 201 and the electromagnetic touch plate 202 be embedded on described glue frame 201, and wherein, the yield strength of the material of described glue frame 201 is more than or equal to 90MPa.
As shown in Figure 4, in electromagnetic touch-control backlight module 200 after assembling, described electromagnetic touch plate 202 is embedded on described glue frame 201.When undersized electromagnetic touch-control backlight module, such as, when size is less than or equal to 12 inches, the intensity (yield strength is more than or equal to 90MPa) of described glue frame 201 enough supports the various assemblies of described electromagnetic touch-control backlight module 200, and without the need to increasing backboard again.Eliminate the electromagnetic touch-control backlight module 200 of backboard, fundamentally stopped the interference of backboard to electromagnetic touch, also do not exist because backboard necessity to the optimal design that electromagnetic touch is disturbed will be reduced, reduce design difficulty, also reduce material cost simultaneously.
Continue with reference to figure 4, described glue frame 201 is provided with hole 2011, and described electromagnetic touch plate 202 can be entrenched on described glue frame 201 by screw 2021 and described hole 2011.Certainly, described electromagnetic touch plate 202 also can be connected with described glue frame 201 by other chimeric modes, such as, be connected with described glue frame 201 by described electromagnetic touch plate 202 by buckle is chimeric.
Electromagnetic touch plate 202 is arranged on described glue frame 201, and in order to reduce the interference to electromagnetic touch further, the material of described glue frame 201 can be chosen as nonmagnetic substance, such as aluminium alloy, magnesium alloy electricity or almag etc.When electromagnetic touch plate 202 be positioned at electromagnetic touch pen on electromagnetic touch plate 202 operationally, because do not deposit magnetic material around it, therefore the effect of its electromagnetic touch can effectively be improved.
In addition, when the electromagnetic touch-control backlight module of middle size, such as, when size is between 12 inches to 19 inches, as long as the intensity of glue frame 201 is enough, backboard can be omitted equally.Specifically, when waiting the yield strength of described glue frame 201 to be greater than 260MPa, only just can the various assemblies of described electromagnetic touch-control backlight module 200 by glue frame 201, and without the need to using backboard.
In addition, in order to described electromagnetic touch-control backlight module 200 is more light, described glue frame 201 can select the material that proportion glue is little, and specifically, the proportion of the material of described glue frame is less than or equal to 7.82g/cm
3.Such as described glue frame 201 material is the one of carbon fibre, melamine, acrylic or PVC.
Continue with reference to figure 4, described electromagnetic touch-control backlight module 200 also comprises reflector plate 203, light guide plate 204 and optical diaphragm group 205.Wherein, described reflector plate 203 is installed on described electromagnetic touch plate 202, and described light guide plate 204 is arranged on described reflector plate 203, and described optical diaphragm group 205 is arranged in described light guide plate 204.The lower surface of described reflector plate 203 directly contacts with the upper surface of described electromagnetic touch plate 202.
In order to make electromagnetic touch-control backlight module lighter, also electromagnetic touch plate and reflector plate can be combined.Specifically, in another embodiment, composition graphs 5 and Fig. 6, also directly can apply reflection horizon 206 on the surface of described electromagnetic touch plate 202.In electromagnetic touch-control backlight module 200 after finishing assembly, described light guide plate 204 directly applies the surface contact in reflection horizon 206 with described electromagnetic touch plate 202.
As shown in Figure 7, in another embodiment of the present invention, also provide a kind of liquid crystal indicator 300, comprise a LCDs 301, touching device 302, described electromagnetic touch-control backlight module 200 and an electromagnetic touch pen 303.In touch-control process, between electromagnetic touch pen 303 and described electromagnetic touch plate 202, not at the assembly of backboard or other magnetic materials, thus improve electromagnetic touch effect.
In sum, in above-mentioned electromagnetic touch-control backlight module, described electromagnetic touch plate is arranged on glue frame, at electromagnetic touch plate be positioned at time writer on electromagnetic touch plate operationally, the acting force of electromagnetic touch therebetween can not penetrate the backboard with ferromagnetic material, therefore there is not the interference of backboard to electromagnetic touch.In addition, because the material yield strength of described glue frame is more than or equal to 90MPa, described glue frame has the intensity identical with prior art dorsulum, only use glue frame just can reach the holding power of original backboard, therefore can omit backboard, naturally also there is not the opening of backboard or thinning relevant design, greatly reduce the design difficulty of electromagnetic touch-control backlight module, simultaneously because eliminate backboard, the material cost of electromagnetic touch-control backlight module can also be reduced.
Obviously, those skilled in the art can carry out various change and modification to invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. an electromagnetic touch-control backlight module, comprising:
One glue frame, the yield strength of the material of described glue frame is more than or equal to 90MPa; And
Be embedded in the electromagnetic touch plate on described glue frame;
Wherein, described electromagnetic touch-control backlight module does not comprise backboard.
2. electromagnetic touch-control backlight module as claimed in claim 1, it is characterized in that, the yield strength of the material of described glue frame is greater than 260MPa.
3. electromagnetic touch-control backlight module as claimed in claim 1, it is characterized in that, the material of described glue frame is nonmagnetic substance.
4. electromagnetic touch-control backlight module as claimed in claim 3, it is characterized in that, the material of described glue frame is aluminium alloy or magnesium alloy.
5. electromagnetic touch-control backlight module as claimed in claim 3, it is characterized in that, the proportion of the material of described glue frame is less than or equal to 7.82g/cm
3.
6. electromagnetic touch-control backlight module as claimed in claim 5, it is characterized in that, described glue frame material is the one of carbon fibre, melamine, acrylic or PVC.
7. electromagnetic touch-control backlight module as claimed in claim 1, is characterized in that, also comprise the reflector plate be installed on described electromagnetic touch plate.
8. electromagnetic touch-control backlight module as claimed in claim 1, is characterized in that, also comprise the reflection horizon be coated on described electromagnetic touch plate.
9. electromagnetic touch-control backlight module as claimed in claim 1, it is characterized in that, described electromagnetic touch plate is embedded on described glue frame by screw or buckle.
10. a liquid crystal indicator, comprising:
One LCDs; And
Electromagnetic touch-control backlight module as in one of claimed in any of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210576947.8A CN103278965B (en) | 2012-12-26 | 2012-12-26 | A kind of electromagnetic touch-control backlight module and liquid crystal indicator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210576947.8A CN103278965B (en) | 2012-12-26 | 2012-12-26 | A kind of electromagnetic touch-control backlight module and liquid crystal indicator |
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| Publication Number | Publication Date |
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| CN103278965A CN103278965A (en) | 2013-09-04 |
| CN103278965B true CN103278965B (en) | 2015-12-09 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534351A (en) * | 2014-12-11 | 2015-04-22 | 青岛海信电器股份有限公司 | Backlight module and display device |
| CN104536622A (en) * | 2014-12-19 | 2015-04-22 | 惠科电子（深圳）有限公司 | Infrared electromagnetic touch screen and double-touch liquid crystal integrated machine |
| CN104536639B (en) * | 2014-12-19 | 2018-08-07 | 惠科股份有限公司 | Induction control structure, infrared electromagnetic touch screen and double-touch liquid crystal integrated machine |
| CN205594265U (en) | 2016-05-11 | 2016-09-21 | 合肥鑫晟光电科技有限公司 | Backlight module and display device |
| CN106980207B (en) * | 2017-05-12 | 2023-09-01 | 广州视源电子科技股份有限公司 | Direct type backlight display module and display equipment |
| CN109343256A (en) * | 2018-11-14 | 2019-02-15 | 深圳市友基技术有限公司 | Electromagnetic screen installs fixed structure and display |
| CN110570766B (en) * | 2019-09-06 | 2021-12-10 | 厦门天马微电子有限公司 | Backlight module and display device |
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| CN101661691A (en) * | 2009-08-24 | 2010-03-03 | 友达光电股份有限公司 | Low-electromagnetic touch-control induction interference backlight module and display device |
| CN102269896A (en) * | 2011-06-07 | 2011-12-07 | 友达光电股份有限公司 | Touch control type liquid crystal display |
| CN202133987U (en) * | 2011-07-22 | 2012-02-01 | 北京京东方光电科技有限公司 | Electromagnetic induction antenna plate, backlight source and display device |
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| KR100459230B1 (en) * | 2002-11-14 | 2004-12-03 | 엘지.필립스 엘시디 주식회사 | touch panel for display device |
| US7012655B2 (en) * | 2003-03-28 | 2006-03-14 | Lg.Philips Lcd Co., Ltd. | Liquid crystal display device with digitizer |
| JP4968658B2 (en) * | 2005-08-02 | 2012-07-04 | Ｎｌｔテクノロジー株式会社 | Liquid crystal display |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101661691A (en) * | 2009-08-24 | 2010-03-03 | 友达光电股份有限公司 | Low-electromagnetic touch-control induction interference backlight module and display device |
| CN102269896A (en) * | 2011-06-07 | 2011-12-07 | 友达光电股份有限公司 | Touch control type liquid crystal display |
| CN202133987U (en) * | 2011-07-22 | 2012-02-01 | 北京京东方光电科技有限公司 | Electromagnetic induction antenna plate, backlight source and display device |
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| CN103278965A (en) | 2013-09-04 |
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