CN102830830A - Input device with luminous pattern - Google Patents
Input device with luminous pattern Download PDFInfo
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- CN102830830A CN102830830A CN201110164452XA CN201110164452A CN102830830A CN 102830830 A CN102830830 A CN 102830830A CN 201110164452X A CN201110164452X A CN 201110164452XA CN 201110164452 A CN201110164452 A CN 201110164452A CN 102830830 A CN102830830 A CN 102830830A
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- pattern
- input media
- lgp
- backlight
- luminous pattern
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Abstract
The invention discloses an input device with a luminous pattern. The input device comprises an input interface and a backlight module. The backlight module comprises a light source and a light guide plate. The light guide plate is provided with a predetermined shading rate and forms at least one pattern at the lower surface of the light guide plate. When the light source is not started, the brightness of the light guide plate is lower than the predetermined shading rate and the pattern is not shown, when the light source is started, the luminous pattern is shown. The light guide plate is formed by uniformly doping multiple shading particles by a transparent plastic material and jetting, and at least one pattern is formed by densely arranging micro light guide structures. According to the invention, the backlight utilization rate is improved, the cost is reduced, a process is simplified, the shading uniformity is improved, the thickness of the input device is reduced, and the long-term collision and abrasion can be avoided.
Description
Technical field
The present invention refers to a kind of input media with luminous pattern especially about a kind of input media.
Background technology
The application of touch-control input device is quite extensive, has some touch-control input devices to possess two kinds of different input patterns simultaneously on the market at present.Wherein, touch-control input device has a backlight module, and when backlight module was opened, touch-control input device showed preset pattern and first kind of input pattern is provided; Display pattern not when backlight module is not opened, and second kind of input pattern is provided.That is, the user can by whether display pattern and know it is to be in which kind of input pattern at present, and then according to mode input signal.For example backlight when not opening the touch-control input device outward appearance be the state of whole black; And input pattern is the pattern of mouse beacon cursor, and the user knows that when seeing the apparent condition of whole black can see through the action that this input media is made rolling mouse and clicked this moment; Touch-control input device shows luminous keyboard when backlight open; And input pattern is set at the pattern of supervisory keyboard, and the user knows when seeing luminous keyboard pattern and can see through this input media input characters, numeral this moment or use other function that keyboard provided.Therefore, a design focal point of this kind touch-control input device backlight is how to guarantee when backlight the unlatching not display pattern, and when backlight open, just shows luminous pattern, the situation of obscuring with the person of avoiding the use of.
See also Fig. 1, it is a kind of side view of existing input media backlight.Existing input media 1 backlight from bottom to top is input interface 11, backlight module 12 and mylar film 19 (Mylar plate) in regular turn.Wherein backlight module 12 comprises light source 13 and LGP 14, and the lower surface of mylar film 19 is provided with a plurality of patterns 17.Pattern 17 is to print with the printing opacity black ink of shading rate about 98% to form, and light shield layer 18 is then printed with lighttight black ink in the zone beyond the pattern 17, and therefore, light only can penetrate the position of mylar film 19 picture on surface 17, and other zone then can't printing opacity.When the backlight module 12 of input media 1 backlight is not opened; Still have faint light to get into input media 1 backlight in the environment; But because the regional shading rate of pattern 17 is 98%; Human eye can't be distinguished the light quantity of faint light in 2% environment that appears of zone thus, so the pattern on the mylar film 19 17 can not shown, that is can the person of being used not see; When the backlight module of input media 1 backlight 12 is opened, there is a large amount of light to get into input media 1 backlight, therefore,, also be enough to make human eye to distinguish light quantity difference and can observe luminous pattern 17 though wherein only there is 2% light can penetrate mylar film 19.
See also Fig. 2, it is the side view of another kind of existing input media 2 backlight.Existing input media 2 backlight from bottom to top is input interface 21, backlight module 22 and top layer 29 in regular turn.The upper surface on top layer 29 is printed black out ink, and formation one has the light shield layer 28 of predetermined shading rate.Backlight module 22 comprises light source 23 and LGP 24.The lower surface 26 of LGP 24 has at least one pattern 27 that is formed by little light guide structure dense arrangement.Little light guide structure in the LGP 24 can influence the incident angle of light and destroy the total reflection path of light, makes light refraction penetrate LGP 24, and therefore, when bright and clear, the top of little light guide structure position can be appeared light and presented pattern 27.When the backlight module 22 of input media 2 backlight is not opened, get into the deficiency in light quantity of input media 2 backlight, do not have enough light penetration light shield layers 28 and can not present pattern 27, that is can the person of being used not see.When backlight module 22 was opened, the beginning had enough light to penetrate light shield layer 28 and present luminous pattern 27 through little light guide structure.
Yet existing two kinds of input medias backlight respectively have its restriction of using.Existing input media 1 backlight is in order to ensure when backlight module 12 is not opened, not presenting pattern 17; Must select the printing opacity black ink impressing pattern 17 of shading rate 98% for use; Make utilization factor backlight only 2%; Therefore LED LED source 13 that must the collocation high brightness has enough light penetration mylar films 19 when backlight module 12 is opened and presents pattern 17, has improved the cost that uses.In addition; The shading mode of existing input media 1 backlight and existing input media 2 backlight is provided with a mylar film 19 or a top layer 29 above LGP 14,24; And by the mode of screen painting at its surface coated shading material; The screen painting processing procedure complicacy that this kind mode is required makes manufacturing cost improve.In addition, the shading material of coating is positioned at the surface on mylar film 19 or top layer 29, is prone in time or transports the process wearing and tearing come off, and possibly shorten the serviceable life of input media backlight.Therefore, be necessary to design a kind of new input media backlight, to solve the disappearance of existing input media backlight.
Summary of the invention
The technical matters that the present invention mainly solves is that the above-mentioned deficiency to prior art exists provides a kind of utilization factor backlight the high input media with luminous pattern.
The technical matters of the less important solution of the present invention is that the above-mentioned deficiency to prior art exists provides a kind of processing procedure the simple and more frivolous input media with luminous pattern.
Another technical matters that will solve of the present invention is, to the above-mentioned deficiency that prior art exists, provides a kind of shading material to be difficult in time or at the input media with luminous pattern that is transporting the process wearing and tearing.
The present invention's technical matters that will solve again is that the above-mentioned deficiency to prior art exists provides a kind of shaded effect to have the input media of luminous pattern uniformly.
The technical solution adopted for the present invention to solve the technical problems provides a kind of input media with luminous pattern; It comprises input interface and backlight module; This backlight module comprises light source and LGP; This LGP has a upper surface and a lower surface, and this lower surface of this LGP has at least one pattern; Wherein, this LGP has a predetermined shading rate, and the brightness of this LGP is not lower than this predetermined shading rate and does not present this at least one pattern when this light source is opened.
Preferably, this LGP is doped a plurality of shading particles, makes this LGP have this predetermined shading rate.
Preferably, this predetermined shading rate is between 75%-80%.
Preferably, this pattern is with the densely arranged formation of little light guide structure.
Preferably, this little light guide structure site that is dense arrangement.
Preferably, this little light guide structure microstructure that is dense arrangement.
Preferably, this light source is arranged at a side of this LGP.
Preferably, described input media with luminous pattern also comprises black floor.
Preferably, this input interface is a touch sensing.
Preferably, this touch sensing be arranged at this backlight module above or below.
Preferably, this pattern is the button pattern.
Perhaps, preferably, this pattern is a keyboard pattern.
Perhaps, preferably, this pattern is the pattern of interactive element.
The present invention has the input media of luminous pattern and improves to its mode that combines with the shading material and utilization factor backlight; With injection molding behind a plurality of shading particles of the even blending of clear plastic material of LGP; Not only simplify processing procedure that backlight module combines the shading material, reduce shading material chance pockety in the manufacturing process, and the shading material is difficult for being worn and torn because of collision quilt for a long time.Wherein, When forming LGP with lower predetermined shading rate with the even blending of shading material; If little light guide structure dense arrangement on LGP of arranging in pairs or groups again goes out design of patterns; With the demand that utilization factor backlight is being shown promote and do not appear can take into account backlight the unlatching simultaneously the time pattern, the optimal shading rate of the present invention is 75～80%, does not present the demand of pattern in the time of not only can reaching backlight the unlatching; And the utilization factor backlight that can make the present invention have the input media of luminous pattern reaches 20～25%, is ten times of existing input media utilization factor backlight.Therefore; The input media that the present invention has a luminous pattern is improved to the mode that combines with the shading material and utilization factor backlight and is reached and promote utilization factor backlight, reduce cost, simplify processing procedure, promote the shading homogeneity and avoid colliding for a long time advantage such as abrasion, promotes its whole application in industry value.
Description of drawings
Fig. 1 is a kind of side view of existing input media backlight.
Fig. 2 is the side view of another kind of existing input media backlight.
Fig. 3 is the side view that the present invention has input media first preferred embodiment of luminous pattern.
Fig. 4 is that the present invention is with the LGP example schematic diagram of site as little light guide structure.
Fig. 5 is the view of input media when light source is not unlocked that the present invention has luminous pattern.
Fig. 6 is the view of input media when light source is unlocked that the present invention has luminous pattern.
Fig. 7 is the side view that the present invention has input media second preferred embodiment of luminous pattern.
Embodiment
In view of the defective of prior art, the present invention provides a kind of input media with luminous pattern.See also Fig. 3, it has the side view of input media in first preferred embodiment of luminous pattern for the present invention.Input media 3 with luminous pattern comprises input interface 31 and backlight module 32.Backlight module 32 comprises light source 33 and LGP 34.LGP 34 has a upper surface 35 and a lower surface 36, and is formed with at least one pattern 37 in the lower surface 36 of LGP 34.Demonstrate a plurality of patterns among Fig. 3 embodiment.Pattern 37 can be for example function button pattern (like the pattern of power key), or QWERTY keyboard pattern, or the interactive element pattern of the operating system of input media (as the application program that is shown in desktop is graphic).The preferably, input media 3 of the present invention more comprises a black floor 39, is arranged at input interface 31 belows.Input interface 31 does, for example, and touch sensing.
See also Fig. 5 and Fig. 6, Fig. 5 has the view of input media 3 when light source 33 is not unlocked of luminous pattern for Fig. 3, and Fig. 6 has the view of input media after light source 33 is unlocked of luminous pattern for Fig. 3.See also Fig. 5, when the backlight module 32 of the input media with luminous pattern 3 was not opened, the input media 3 with luminous pattern itself did not provide light source, only had the faint light in the surrounding enviroment to get into LGP 34 via upper surface 35.In the predetermined shading rate of LGP 34 is 75～80% situation; There is 75%-80% to be absorbed in the faint light of entering LGP 34 by a plurality of shading particles 38; All the other light of 20～25% then are incident to the lower surface 36 of LGP 34, and arrive at little light guide structure of LGP 34 lower surfaces 36.Because the incident angle the when light of different directions is incident to little light guide structure is different; Have half the light can continue through refraction to advance toward the direction of LGP 34 lower surfaces 36 approximately, therefore only surplus about 10% light can be reflected and advance toward the direction of LGP 34 upper surfaces 35.In the process of reflection, a plurality of shading particles 38 will absorb some light again in the LGP 34, and therefore only surplus about 2% former light-inletting quantity can appear LGP 34, and can't present pattern 37, that is the user will can not see pattern 37.Certainly, the purpose that is provided with of the black floor 39 among Fig. 3 is when backlight module 32 is not unlocked, better shaded effect to be provided.
Please consult Fig. 6 again, when opening light source 33 when backlight module 32 startups, a large amount of light gets into LGP 34 from side.Wherein, Light through little light guide structure 37 is advanced because of the total reflection path is destroyed toward the direction of LGP 34 upper surfaces 35; In the predetermined shading rate of LGP 34 is 75～80% situation, there is 75～80% light to be absorbed approximately by the shading particle in the LGP 34 38, therefore there is 20～25% light can penetrate LGP 34 and present luminous pattern 37 approximately; Let the user see luminous pattern 37, like the keyboard pattern that Fig. 6 showed with a plurality of buttons.
What need special instruction is; Existing input media 1 backlight is in order to reach the demand that does not present pattern when backlight the unlatching; Must select the printing opacity black ink impressing pattern 17 of shading rate 98% for use; Could let the faint light in most of environment after getting into mylar film 19, can both only be kept 2% light and appear mylar film 19, make us eye and can't perceive pattern 17 by absorption of inks.But utilization factor backlight also only has 2% unfavorable effect when using transmittance only 2% printing opacity black ink impressing pattern can cause light source to open, and the more light source of high brightness of therefore need arranging in pairs or groups has increased electric power consumption and cost.LGP 34 of the present invention is to form with a plurality of shading particle 38 back injection moldings of the even blending of clear plastic material, and forms pattern 37 with little light guide structure in lower surface 36 dense arrangement of LGP 34.When backlight the unlatching; Faint light in the environment gets into and reflection when leaving LGP 34, and the light quantity of faint light can absorb once by each a plurality of shading particle 38 in LGP 34, and because of the angle of light incident different; Approximately only surplus half the light quantity can be toward the direction reflection that appears LGP; So design makes faint light in the environment after getting into input media 3 backlight, and the process that light quantity is advanced along with light is absorbed layer by layer, reflects, therefore; Use the demand that does not present pattern in the time of to reach backlight the unlatching under the situation of 80% shading rate; Utilization factor backlight when promoting backlight open simultaneously reaches 20%, therefore can select lower-cost low-light level LED light emitting diode, the effect that reach the power and energy saving, reduces cost for use.In addition; Existing input media 2 backlight is printed on black out ink with screen painting the surface on another top layer; Its printing process needs after original copy plate-making, cleaning half tone, coating photosensitive emulsion, printing down, washing half tone manufacturing process such as edition video picture; Again half tone is placed on the top layer to scrape the last and program of drying.It makes not only very complicated, and wherein the residual degree of black out ink, scraper planeness, table top flatness, ink molecules state of cure etc. all cause black out ink to print uneven problem often, and then produces the uneven unfavorable result of shading.In addition, screen painting only can be printed on object surfaces with the shading material, the shading material be prone to take place in time or in the unfavorable phenomenon of transporting the process wearing and tearing.The present invention before making LGP earlier with clear plastic material and the even blending of a plurality of shading particles after injection molding again; Not only replace the top layer and reach lighter and thinner effect with LGP; More significantly simplify the processing procedure, the reduction shading material chance pockety that combine with the shading material, and avoid the shading material to produce the problem of abrasion because of long-time collision.
The present invention more provides one second preferred embodiment.See also Fig. 7, its input media that has luminous pattern for the present invention is in the side view of second preferred embodiment.Input media 4 with luminous pattern comprises input interface 41 and backlight module 42.Backlight module 42 comprises light source 43 and LGP 44.LGP 44 comprises a plurality of shading particles 48, and has a upper surface 45 and a lower surface 46.Lower surface 46 in LGP 44 is formed with at least one pattern 47.Certainly, a black floor 49 also can be set in present embodiment.The position and the function of each element are all consistent in second preferred embodiment and first preferred embodiment; Unique difference only be backlight module 32 in first preferred embodiment be positioned at input interface 31 above; In second preferred embodiment backlight module 42 then be positioned at input interface 41 below; That is to say that the present invention can give suitable configuration relation up and down according to the characteristic of touch sensing and LGP.
Comprehensive speech; The input media that the present invention has luminous pattern is to improve to its mode that combines with the shading material and utilization factor backlight; With injection molding behind a plurality of shading particles of the even blending of clear plastic material of LGP; Not only simplify processing procedure that backlight module combines the shading material, reduce shading material chance pockety in the manufacturing process, and the shading material is difficult for being worn and torn because of collision quilt for a long time.Wherein, When forming LGP with lower predetermined shading rate with the even blending of shading material; If little light guide structure dense arrangement on LGP of arranging in pairs or groups goes out design of patterns again, with the demand that utilization factor backlight is being shown promote and do not appear can take into account backlight the unlatching simultaneously the time pattern, the input media that process by this way research back and finding with luminous pattern; Its optimal shading rate is 75～80%; Do not present the demand of pattern in the time of not only can reaching backlight the unlatching, and the utilization factor backlight that can make the present invention have the input media of luminous pattern reaches 20～25%, be ten times of existing input media utilization factor backlight.Therefore; The input media that the present invention has a luminous pattern is improved to the mode that combines with the shading material and utilization factor backlight and is reached and promote utilization factor backlight, reduce cost, simplify processing procedure, promote the shading homogeneity and avoid colliding for a long time advantage such as abrasion, promotes its whole application in industry value.
The above is merely preferred embodiment of the present invention, is not in order to limiting claim scope of the present invention, and therefore all other do not break away from the equivalence of being accomplished under the disclosed spirit and change or modify, and all should be contained in the scope of the present invention.
Claims (13)
1. the input media with luminous pattern is characterized in that, comprising:
Input interface; And
Backlight module comprises light source and LGP, and this LGP has a upper surface and a lower surface, and this lower surface of this LGP has at least one pattern; Wherein, this LGP has a predetermined shading rate, and the brightness of this LGP is not lower than this predetermined shading rate and does not present this at least one pattern when this light source is opened.
2. the input media with luminous pattern as claimed in claim 1 is characterized in that, this LGP is doped a plurality of shading particles, makes this LGP have this predetermined shading rate.
3. the input media with luminous pattern as claimed in claim 2 is characterized in that, this predetermined shading rate is between 75%-80%.
4. the input media with luminous pattern as claimed in claim 1 is characterized in that, this pattern is with the densely arranged formation of little light guide structure.
5. the input media with luminous pattern as claimed in claim 4 is characterized in that, this little light guide structure is the site of dense arrangement.
6. the input media with luminous pattern as claimed in claim 4 is characterized in that, this little light guide structure is the microstructure of dense arrangement.
7. the input media with luminous pattern as claimed in claim 1 is characterized in that, this light source is arranged at a side of this LGP.
8. the input media with luminous pattern as claimed in claim 1 is characterized in that, also comprises black floor.
9. the input media with luminous pattern as claimed in claim 1 is characterized in that, this input interface is a touch sensing.
10. the input media with luminous pattern as claimed in claim 9 is characterized in that, this touch sensing be arranged at this backlight module above or below.
11. the input media with luminous pattern as claimed in claim 1 is characterized in that, this pattern is the button pattern.
12. the input media with luminous pattern as claimed in claim 1 is characterized in that this pattern is a keyboard pattern.
13. the input media with luminous pattern as claimed in claim 1 is characterized in that, this pattern is the pattern of interactive element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110164452XA CN102830830A (en) | 2011-06-17 | 2011-06-17 | Input device with luminous pattern |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110164452XA CN102830830A (en) | 2011-06-17 | 2011-06-17 | Input device with luminous pattern |
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| Publication Number | Publication Date |
|---|---|
| CN102830830A true CN102830830A (en) | 2012-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110164452XA Pending CN102830830A (en) | 2011-06-17 | 2011-06-17 | Input device with luminous pattern |
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| Country | Link |
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| CN (1) | CN102830830A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111489906A (en) * | 2019-06-18 | 2020-08-04 | 光宝电子(广州)有限公司 | Key backlight module and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050057915A1 (en) * | 2003-02-12 | 2005-03-17 | Hon Hai Precision Industry Co., Ltd. | Patterned light guide plate and display device having same |
| CN1916732A (en) * | 2006-09-05 | 2007-02-21 | 深圳市中电淼浩固体光源有限公司 | LCD backlight system with compatibility of night vision of using LED light source |
| US7408707B2 (en) * | 2004-08-04 | 2008-08-05 | Fusion Optix Inc. | Multi-region light scattering element |
| CN201435069Y (en) * | 2009-04-01 | 2010-03-31 | 钰玺科技有限公司 | Touch-control keyboard input device with pattern switching |
-
2011
- 2011-06-17 CN CN201110164452XA patent/CN102830830A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050057915A1 (en) * | 2003-02-12 | 2005-03-17 | Hon Hai Precision Industry Co., Ltd. | Patterned light guide plate and display device having same |
| US7408707B2 (en) * | 2004-08-04 | 2008-08-05 | Fusion Optix Inc. | Multi-region light scattering element |
| CN1916732A (en) * | 2006-09-05 | 2007-02-21 | 深圳市中电淼浩固体光源有限公司 | LCD backlight system with compatibility of night vision of using LED light source |
| CN201435069Y (en) * | 2009-04-01 | 2010-03-31 | 钰玺科技有限公司 | Touch-control keyboard input device with pattern switching |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111489906A (en) * | 2019-06-18 | 2020-08-04 | 光宝电子(广州)有限公司 | Key backlight module and application thereof |
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Application publication date: 20121219 |