CN202118811U - Backlight module and keyboard comprising same - Google Patents
Backlight module and keyboard comprising same Download PDFInfo
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- CN202118811U CN202118811U CN2011201686123U CN201120168612U CN202118811U CN 202118811 U CN202118811 U CN 202118811U CN 2011201686123 U CN2011201686123 U CN 2011201686123U CN 201120168612 U CN201120168612 U CN 201120168612U CN 202118811 U CN202118811 U CN 202118811U
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- backlight module
- lgp
- printing opacity
- photomask
- impervious barrier
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Abstract
The utility model relates to a backlight module and a keyboard comprising the backlight module. The backlight module comprises a light guide plate, at least one luminous unit and a light-transmitting seepage-proof layer. The light guide plate is provided with a light-out surface, light given out by the luminous unit is irradiated to the light guide plate, and the light-transmitting seepage-proof layer is disposed on the light-out surface. The keyboard comprises the backlight module and a keyboard module. The keyboard module is disposed on the backlight module. The backlight module has the advantages of preventing liquid from seeping into the luminous unit by the aid of the light-transmitting seepage-proof layer disposed on the light guide plate, thereby achieving function of protecting the luminous unit and maintaining luminous quality.
Description
Technical field
The utility model relates to a kind of backlight module, relates in particular to the structure of this backlight module and comprises the keyboard of this backlight module.
Background technology
Backlight module (backlight module) is the light that spot light or line source are sent, and is the optical module of an area source through designing of optical texture.And the application of backlight module is except liquid crystal indicator, can also be as the backlight of illuminated keyboard, and advertising lamp box or the like.Along with product more and more is inclined to frivolous trend, the lightening design of backlight module also becomes an important subject under discussion gradually.
Yet; In some cases, for example the user probably can trickle down liquid in keyboard because of carelessness, and liquid infiltrates from the slit on keycap next door; Or place liquid crystal indicator or advertising lamp box etc. outside the building; When the rainy day, do not have good seepage control measure, make down direct contact luminescence unit of liquid, then can make luminescence unit damage or influence luminous mass.
Therefore, how a kind of backlight module and keyboard are provided, can prevent that liquid from infiltrating in it and influence luminously, become one of important topic.
Summary of the invention
The utility model technical issues that need to address have provided a kind of backlight module, are intended to solve the above problems.
The utility model also provides the keyboard that adopts above-mentioned backlight module.
In order to solve the problems of the technologies described above, the utility model is realized through following technical scheme:
The backlight module of the utility model comprises: a LGP; Described LGP has an exiting surface; At least one luminescence unit, the light that it sent is incident upon this LGP; An and printing opacity impervious barrier; Described printing opacity impervious barrier is arranged on this exiting surface.
The keyboard of the utility model comprises: above-mentioned backlight module and Keysheet module; This Keysheet module is arranged on this backlight module.
Compared with prior art, the beneficial effect of the utility model is: because the printing opacity impervious barrier is arranged on the LGP, can avoids liquid to infiltrate in the luminescence unit thus, and then reach the effect of protection luminescence unit, also keep luminous mass.
Description of drawings
Fig. 1 is the decomposing schematic representation of a kind of backlight module of the utility model preferred embodiment;
Fig. 2 is the decomposing schematic representation of the another kind of backlight module of the utility model preferred embodiment;
Fig. 3 A and Fig. 3 B are the generalized section of another backlight module of the utility model preferred embodiment;
Fig. 4 is the decomposing schematic representation of another backlight module of the utility model preferred embodiment;
Fig. 5 A is the decomposing schematic representation of another backlight module of the utility model preferred embodiment to Fig. 5 D;
Fig. 6 is the decomposing schematic representation of another backlight module of the utility model preferred embodiment;
Fig. 7 is the decomposing schematic representation of a kind of keyboard of the utility model preferred embodiment.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:
The utility model proposes a kind of backlight module, and it comprises a LGP, at least one luminescence unit and a printing opacity impervious barrier.LGP has an exiting surface.The light that luminescence unit sent is incident upon LGP.The printing opacity impervious barrier is arranged on the exiting surface.
In one of the utility model embodiment, luminescence unit is to be embedded in LGP.
In one of the utility model embodiment, luminescence unit is the exiting surface that is embedded in LGP.
In one of the utility model embodiment, the printing opacity impervious barrier is a hyaline layer.
In one of the utility model embodiment, the printing opacity impervious barrier be by one stick together material and gluing in LGP.
In one of the utility model embodiment, the printing opacity impervious barrier more comprises at least one holes, is arranged at around the holes and stick together material.Holes can let backlight module assemble, but and sticks together material and be arranged at that barrier liquid infiltrates from holes around the holes.
In one of the utility model embodiment, backlight module more comprises luminous intensity adjustment pattern, and it is arranged on the printing opacity impervious barrier, and corresponding luminescence unit setting.
In one of the utility model embodiment, luminous intensity adjustment pattern comprises a white reflecting pattern.
In one of the utility model embodiment, backlight module more comprises a photomask, and it is arranged on the printing opacity impervious barrier.
In one of the utility model embodiment, LGP has more a bottom surface and at least one side, and bottom surface and exiting surface are oppositely arranged; And the side links exiting surface and bottom surface; And backlight module more comprises a photomask, and its size is greater than the size of LGP, wherein; Photomask has a light shielding part, and light shielding part covers the side of LGP.
In one of the utility model embodiment, photomask covers exiting surface or bottom surface or the exiting surface and the bottom surface of LGP.
In one of the utility model embodiment, photomask has plural opening, and those openings are plural micro-structurals of the corresponding LGP of difference.
In one of the utility model embodiment, the printing opacity impervious barrier more comprises plural transmittance section and plural light shielding part.Wherein, plural transmittance section is the plural micro-structural of the corresponding LGP of difference.
For reaching above-mentioned purpose, the utility model more proposes a kind of keyboard, and it comprises a LGP, at least one luminescence unit, a printing opacity impervious barrier and a Keysheet module.LGP has an exiting surface.The light that luminescence unit sent is incident upon LGP.The printing opacity impervious barrier is arranged on the exiting surface.Keysheet module is arranged on the printing opacity impervious barrier.
In one of the utility model embodiment, luminescence unit is to be embedded in LGP.
In one of the utility model embodiment, luminescence unit is the exiting surface that is embedded in LGP.
In one of the utility model embodiment, the printing opacity impervious barrier is a hyaline layer.
In one of the utility model embodiment, the printing opacity impervious barrier be by one stick together material and gluing in LGP.
In one of the utility model embodiment, the printing opacity impervious barrier more comprises at least one holes, is arranged at around the holes and stick together material.Holes can let keyboard assemble, but and sticks together material and be arranged at that barrier liquid infiltrates from holes around the holes.
In one of the utility model embodiment, backlight module more comprises luminous intensity adjustment pattern, and it is arranged on the printing opacity impervious barrier, and corresponding luminescence unit setting.
In one of the utility model embodiment, luminous intensity adjustment pattern comprises a white reflecting pattern.
In one of the utility model embodiment, backlight module more comprises a photomask, and it is arranged on the printing opacity impervious barrier.
In one of the utility model embodiment, LGP has more a bottom surface and at least one side, and bottom surface and exiting surface are oppositely arranged; And the side links exiting surface and bottom surface; And keyboard more comprises a photomask, and its size is greater than the size of LGP, wherein; Photomask has a light shielding part, and light shielding part covers the side of LGP.
In one of the utility model embodiment, photomask covers exiting surface or bottom surface or the exiting surface and the bottom surface of LGP.
In one of the utility model embodiment, photomask has plural opening, and those openings are plural micro-structurals of the corresponding LGP of difference.
In one of the utility model embodiment, the printing opacity impervious barrier more comprises plural transmittance section and plural light shielding part.Wherein, plural transmittance section is the plural micro-structural of the corresponding LGP of difference.
Please with reference to Fig. 1 and shown in Figure 2, Fig. 1 is the decomposing schematic representation of a kind of backlight module 1 of the utility model preferred embodiment, and Fig. 2 is the decomposing schematic representation of the another kind of backlight module 1 of the utility model preferred embodiment.In the present embodiment; Backlight module 1 comprises a LGP 11, a luminescence unit 12 and a printing opacity impervious barrier 13, and wherein, backlight module 1 can be applied to keyboard, liquid crystal indicator or advertising lamp box; At this, be example with the backlight module 1 that is applied to keyboard earlier.
LGP 11 has an exiting surface 111, one of relative with exiting surface 111 bottom surface 112 and a side 113, and side 113 is to be connected with exiting surface 111 and bottom surface 112.Wherein, backlight module 1 can be set up a reflector plate 14 (as shown in Figure 2) in the bottom surface 112 or the side 113 of LGP 11, to improve the light utilization of LGP 11.Present embodiment is that to be arranged at bottom surface 112 with reflector plate 14 be example.
12 light that send of luminescence unit are incident upon LGP 11, by LGP 11 light are penetrated by exiting surface 111.Luminescence unit 12 can be embedded in the exiting surface 111 of LGP 11, maybe can be embedded in bottom surface 112 or side 113 or can not be embedded in the LGP 11, but any side 113 or the bottom surface 212 that regard to LGP 11 is provided with.Present embodiment is that the exiting surface 111 that is embedded in LGP 11 with luminescence unit 12 is an example.Luminescence unit 12 comprises light emitting diode or the LED crystal particle that has encapsulated.In the present embodiment, the exiting surface 111 of LGP 11 can have plural micro-structural M, and micro-structural M can penetrate the exiting surface 111 in LGP 11 with light.
Printing opacity impervious barrier 13 is arranged on the exiting surface 111, and wherein, printing opacity impervious barrier 13 can be a diaphragm, and its material can be the plasticity material of Merlon (PC) or PET (PET) or other antiseepage, does not limit.The printing opacity impervious barrier 13 of present embodiment is to be example with the Merlon, and printing opacity impervious barrier 13 is hyaline layers of a printing opacity.Printing opacity impervious barrier 13 can by one stick together material and gluing in LGP 11, and stick together colloid or the adhesive tape (like double faced adhesive tape) that material for example is a light-permeable, thus can be closely and exiting surface 111 gluings of LGP 11.
In addition; LGP 11 respectively comprises at least one holes O with printing opacity impervious barrier 13; And corresponding the setting, holes O can be used for backlight module 1 and screws togather with other parts (for example base plate or keycap) assembling, can be arranged at around the holes O and stick together material; In case the solution stopping body from holes O infiltration, makes luminescence unit 12 damage and influences luminous mass.
Please with reference to shown in Fig. 3 A and Fig. 3 B, it is the generalized section of another backlight module 2 of the utility model preferred embodiment.In the present embodiment, backlight module 2 more comprises luminous intensity adjustment pattern 25, and it is arranged at surface under the printing opacity impervious barrier 23, and corresponding each luminescence unit 22 is provided with.Through the setting of luminous intensity adjustment pattern 25, the light that can reduce luminescence unit 22 places is excessive, with the too strong phenomenon of avoiding producing in the place, position of corresponding luminescence unit 22 of local light, and then makes backlight module 2 overall brightnesses more even.
Please with reference to shown in Fig. 3 A; Luminous intensity adjustment pattern 25 is arranged on the printing opacity impervious barrier 23; For example be surface, certainly, also can be arranged at the surface of printing opacity impervious barrier 23 away from LGP 21 near LGP 21; Do not limit, the utility model is example to be arranged at printing opacity impervious barrier 23 near the surface of LGP 21.Luminous intensity adjustment pattern 25 be arranged on printing opacity impervious barrier 23 and the luminous intensity adjustment pattern 25 at corresponding luminescence unit 22 places partly can be around luminescence unit 22 and being provided with.
In the present embodiment, luminous intensity adjustment pattern 25 can be the white reflecting pattern.So, can be with in the light reflected back LGP 21 that directly comes selfluminous cell 22, to promote the service efficiency of light.Certainly, luminous intensity adjustment pattern 25 also can be light tight pattern, thus, can absorb the light that directly comes from luminescence unit 22, reduces the excessive ejaculation of light, can prevent to cause the keyboard overall brightness uneven.
Please with reference to shown in Fig. 3 B, in the present embodiment, luminous intensity adjustment pattern 25 more can cover the top of luminescence unit 22 and be provided with; To bring into play better luminous intensity adjustment effect; That is, can be with in the light reflected back LGP 21 that directly comes selfluminous cell 22, to promote the service efficiency of light.And, also can prevent the light of selfluminous cell 22 directly to penetrate, and avoid the too strong phenomenon of local light in the generation of the place, position of corresponding luminescence unit 22.
Please with reference to shown in Figure 4, it is the decomposing schematic representation of another backlight module 3 of the utility model preferred embodiment.In the present embodiment, with the main difference place of previous embodiment do, backlight module 3 more can comprise a photomask 36, and photomask 36 is arranged on the printing opacity impervious barrier 33.Wherein, photomask 36 has plural opening 361, and those openings 361 are the plural micro-structural M that correspond respectively to LGP 31, and micro-structural M can increase the ratio that light penetrates, and photomask 36 then can reduce the light leakage phenomena between those openings 361.
Please with reference to shown in Fig. 5 A to 5D, it is the decomposing schematic representation of the another variation aspect of the utility model preferred embodiment, and wherein, holes O and micro-structural M do not omit to draw.In the present embodiment; With the main difference place of previous embodiment backlight module 3 do, photomask 46 can be a flexible membrane material, and the size of photomask 46 is greater than the size of LGP 41; Wherein, Photomask 46 has a light shielding part 462, and light shielding part 462 is the sides 413 that cover LGP 41, to reduce the light leak of LGP 41 sides 413.
Please with reference to shown in Fig. 5 A; In the present embodiment; Photomask 46 has a light shielding part 462 corresponding to LGP 41 plural sides 413, and when photomask 46 up enveloped bottom surface 412 and the plural side 413 of LGP 41 by bottom surface 412, light shielding part 462 corresponding those sides 413 were provided with.Certainly, photomask 46 can coat reflector plate 44 in the lump, and it is example that present embodiment coats reflector plate 44 with photomask 46 in the lump.In addition, can bind reflector plate 44 and photomask 46 fixing.Light shielding part 462 is to be example with the plural side 413 of covering LGP 41, is noted that, as long as photomask 46 has and covers at least one side 413, can help to reduce the light leakage phenomena of backlight module 4.
Please with reference to shown in Fig. 5 B, in the present embodiment, the structure that the backlight module of itself and Fig. 5 A embodiment 4 is roughly the same.And difference is, the photomask 46 in the present embodiment is exiting surface 411 past exiting surface 411 and at least one sides 413 of getting off to coat LGP 41 by LGP 41.In addition, but the also enforcement aspect of combined diagram 5A and Fig. 5 B, and photomask 46 envelopes the bottom surface 412 of LGP 41 fully, after this changes aspect and will be described in more detail in.Certainly, photomask 46 can coat printing opacity impervious barrier 43 in the lump, and it is example that present embodiment coats printing opacity impervious barrier 43 in the lump with photomask 46.Likewise,, can more bend photomask 46 and envelope part bottom surface 412 or partial reflection sheet 44, fix again for fixing photomask 46.
What need special instruction is; In the present embodiment; The photomask 46 that envelopes exiting surface 411 is to have a transmittance section 463, and transmittance section 463 is that corresponding exiting surface 411 is provided with, and it can have almost and equates or smaller or bigger area with exiting surface 411; Thereby when making photomask 46 coat whole exiting surface 411, light still can be appeared by exiting surface 411.
Please with reference to shown in Fig. 5 C, in the present embodiment, the structure that the backlight module of itself and Fig. 5 B embodiment 4 is roughly the same.And the main difference part is, photomask 46 after broken line L doubling, then is coated in the photomask 46 with LGP 41, luminescence unit 42 or with LGP 41, luminescence unit 42 and reflector plate 44 in the lump.
Please with reference to shown in Fig. 5 D, in the present embodiment, the structure that the backlight module of itself and Fig. 5 A to Fig. 5 C embodiment 4 is roughly the same.And the main difference part is, photomask 46 comprises one first photomask 464 and one second photomask 465.Certainly, in other embodiments, photomask 46 can comprise the film material more than three, is that to comprise two film materials 464,465 with photomask 46 be example at this.At this; First photomask 464 is adjacent to printing opacity impervious barrier 43, the second photomasks 465 and is adjacent to reflector plate 44, and first photomask 464 and second photomask 465 can stick together material through one and link; Certainly; First photomask 464 can be arranged between printing opacity impervious barrier 43 and the LGP 41 or second photomask 465 can be arranged between reflector plate 44 and the LGP 41, is adjacent to printing opacity impervious barrier 43, the second photomasks 465 with first photomask 464 in the present embodiment and is adjacent to reflector plate 44 and is example.
Please with reference to shown in Figure 6, it is the decomposing schematic representation of another backlight module 5 of the utility model preferred embodiment.In the present embodiment; With the main difference place of previous embodiment backlight module 3 do; Printing opacity impervious barrier 53 printing capable of using or coating techniques form plural transmittance section 531 and plural light shielding part 532 with original hyaline layer, and plural transmittance section 531 is plural micro-structural M of corresponding LGP 51.Present embodiment is that light shield layer directly is patterned on the printing opacity impervious barrier 53, makes printing opacity impervious barrier 53 have the effect of photomask and impervious barrier concurrently.Thus, can not need to establish a photomask more in addition, not only can save material cost, also can help the slimming of backlight module.
Please with reference to shown in Figure 7, Fig. 7 is the decomposing schematic representation of a kind of keyboard 6 of the utility model preferred embodiment.In the present embodiment, keyboard 6 comprises a LGP 61, at least one luminescence unit 62, a printing opacity impervious barrier 63 and a Keysheet module 67.Wherein, the LGP 61 in the keyboard 6, luminescence unit 62 and printing opacity impervious barrier 63 have promptly made up the backlight module in the previous embodiment, and the technical characterictic of its assembly and connection relationship have detailed description among the embodiment in front, repeat no more at this.
In the present embodiment, Keysheet module 67 is arranged on the printing opacity impervious barrier 63, and Keysheet module 67 for example comprises a plural keycap 671 and a conducting film 672.Keycap 671 is arranged on the conducting film 672, can be transmitted the signal of the keycap 671 that is pressed by conducting film 672.Through the setting of printing opacity impervious barrier 63, even when the because of carelessness unrestrained liquid of user is infiltrated by the side of the keycap 671 of Keysheet module 67, can directly not contact with luminescence unit 62 yet, influence the bright dipping of luminescence unit 62 so also can not damage.In addition, keyboard 6 more can comprise a base plate 68, and backlight module is to be placed between keycap 671 and the base plate 68.
In sum, backlight module of the utility model and keyboard are that the printing opacity impervious barrier is arranged on the LGP, can avoid liquid to infiltrate in the luminescence unit thus, and then reach the effect of protection luminescence unit, have also kept luminous mass.In addition, in one of the utility model embodiment, the printing opacity impervious barrier comprises at least one holes, is arranged at around the holes and stick together material, and holes can let backlight module assemble, but and sticks together material and be arranged at that barrier liquid infiltrates from holes around the holes.
The above is merely illustrative, but not is restricted.Any spirit and category that does not break away from the utility model, and to its equivalent modifications of carrying out or change, all should be contained in the accompanying Claim protection domain.
Claims (12)
1. a backlight module comprises: a LGP; Described LGP has an exiting surface; At least one luminescence unit, the light that it sent is incident upon this LGP; It is characterized in that also comprising: a printing opacity impervious barrier; Described printing opacity impervious barrier is arranged on this exiting surface.
2. backlight module according to claim 1 is characterized in that: this printing opacity impervious barrier is a hyaline layer.
3. backlight module according to claim 1 is characterized in that: this printing opacity impervious barrier be by one stick together material and gluing on this LGP.
4. backlight module according to claim 1 is characterized in that: this printing opacity impervious barrier comprises at least one holes, and one sticks together material is arranged on around this holes.
5. backlight module according to claim 1 is characterized in that also comprising: luminous intensity adjustment pattern; Described luminous intensity adjustment pattern setting is on this printing opacity impervious barrier, and to should the luminescence unit setting.
6. backlight module according to claim 5 is characterized in that: this luminous intensity adjustment pattern comprises a white reflecting pattern.
7. backlight module according to claim 1 is characterized in that also comprising: a photomask; Described photomask is arranged on this printing opacity impervious barrier.
8. backlight module according to claim 1; It is characterized in that: this LGP has more a bottom surface and at least one side, and this bottom surface and this exiting surface are oppositely arranged, and this side links this exiting surface and this bottom surface; This backlight module also comprises: a photomask; Its size is greater than the size of this LGP, and this photomask has a light shielding part, and this light shielding part is this side that covers this LGP.
9. backlight module according to claim 8 is characterized in that: this photomask covers this exiting surface or this bottom surface or this exiting surface and the bottom surface of this LGP.
10. backlight module according to claim 7 is characterized in that: this photomask has plural opening, and those openings are respectively to plural micro-structural that should LGP.
11. backlight module according to claim 1 is characterized in that: this printing opacity impervious barrier more comprises plural transmittance section and plural light shielding part, and those transmittance sections are to be respectively to plural micro-structural that should LGP.
12. a keyboard is characterized in that comprising: like each the described backlight module and a Keysheet module of 1 to the 11st of claim the; This Keysheet module is arranged on this backlight module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201686123U CN202118811U (en) | 2011-05-24 | 2011-05-24 | Backlight module and keyboard comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201686123U CN202118811U (en) | 2011-05-24 | 2011-05-24 | Backlight module and keyboard comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202118811U true CN202118811U (en) | 2012-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201686123U Expired - Lifetime CN202118811U (en) | 2011-05-24 | 2011-05-24 | Backlight module and keyboard comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202118811U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252275A (en) * | 2011-05-24 | 2011-11-23 | 上海向隆电子科技有限公司 | Backlight module and keyboard thereof |
-
2011
- 2011-05-24 CN CN2011201686123U patent/CN202118811U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252275A (en) * | 2011-05-24 | 2011-11-23 | 上海向隆电子科技有限公司 | Backlight module and keyboard thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120118 |