CN204084009U - Backlight module and illuminated keyboard - Google Patents
Backlight module and illuminated keyboard Download PDFInfo
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- CN204084009U CN204084009U CN201420483953.3U CN201420483953U CN204084009U CN 204084009 U CN204084009 U CN 204084009U CN 201420483953 U CN201420483953 U CN 201420483953U CN 204084009 U CN204084009 U CN 204084009U
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- guide plate
- light guide
- backlight module
- amputation
- light
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Abstract
A kind of illuminated keyboard, comprises a backlight module, and a keyboard unit be arranged on this backlight module.The anti-dazzling screen that this backlight module comprises a slice light guide plate, luminescence unit being arranged on this light guide plate, a slice are arranged on this light guide plate end face, one deck surround the glue-line being arranged on this light guide plate side face, and a slice is arranged on the reflector plate of this bottom surface of light guide plate.This anti-dazzling screen has the amputation district that at least one is formed at periphery.This amputation district makes this light guide plate part light leak, thus improves the luminous flux at this more weak place of light guide plate periphery light, makes the specific region of this keyboard unit have good illumination effect.
Description
Technical field
The utility model relates to a kind of keyboard, particularly relates to a kind of illuminated keyboard and interior backlight module thereof.
Background technology
Existing illuminated keyboard, has and is divided into reflective and light-absorbing type two kinds.For reflective, consult utility model patent case CN201364844Y, the first reflector plate that it comprises a slice light guide plate, light source being arranged on this light guide plate, keyboard body being arranged on this light guide plate end face, a slice are arranged on this bottom surface of light guide plate, a slice are arranged on the second reflector plate of this light guide plate this light source side relatively.This kind of reflective illuminated keyboard, is install this second reflector plate at side, the phenomenon of side light leak is reduced, promotes brightness whereby.
For light-absorbing type, consult TaiWan, China Patent Case TWM435657, the shielding layer that it comprises a slice light guide plate, one deck is arranged on this light guide plate end face, a slice be arranged on this bottom surface of light guide plate reflector plate, at least one is arranged on the light-emitting component of this light guide plate, an and shading piece arranged around this light guide plate periphery.This shielding layer, this reflector plate and this shading piece, around the confined space defining this light guide plate of confession setting, close this light guide plate by means of this confined space, reduce overall light leakage phenomena, and then promote brightness.
Past and existing illuminated keyboard mostly are and adopt row to reduce the mode of light leak to promote the brightness of keyboard entirety, but, but have ignored the keyboard at corner or edge because of far away with light source distance, and have the shortcoming of local luminance deficiency.
Summary of the invention
The purpose of this utility model is to provide a kind of and light guide plate part light leak is promoted the backlight module of specific region brightness.
The utility model backlight module, comprises a slice light guide plate, luminescence unit, a slice anti-dazzling screen, one deck glue-line, and a slice reflector plate.
This light guide plate comprises a contrary end face and a bottom surface, and the side face of this end face of connection and this bottom periphery.
This luminescence unit is arranged on this light guide plate, for providing light source.
This anti-dazzling screen is arranged on the end face of this light guide plate, and comprises the amputation district that at least one is formed at its periphery, and this amputation district allows this light guide plate part light leak.
This glue-line adopts extinction material, and surrounds the side face being arranged on this light guide plate, and part extends to this bottom surface.
This reflector plate is borrowed this glue-line and connects the bottom surface of this light guide plate.
Backlight module described in the utility model, this amputation district removes at least one angle of this anti-dazzling screen.
Backlight module described in the utility model, this luminescence unit is embedded in the side of this light guide plate in contrast to this amputation district, and comprises at least one light emitting diode.
Backlight module described in the utility model, this anti-dazzling screen comprises four amputation districts, respectively by four of this anti-dazzling screen angle amputation.
Backlight module described in the utility model, this luminescence unit is embedded the middle body at this light guide plate, and comprises at least one light emitting diode.
Backlight module described in the utility model, also comprises the adhesive linkage that one deck connects this light guide plate and this anti-dazzling screen, and this adhesive linkage is discontinuously around the periphery of this anti-dazzling screen this light guide plate side relative.
Another object of the present utility model, is namely providing a kind of illuminated keyboard using backlight module.
So the utility model illuminated keyboard, comprise a backlight module as the aforementioned, and a keyboard unit.
This anti-dazzling screen of this backlight module also comprises multiple transparent area that can penetrate for light.
This keyboard unit is arranged on the anti-dazzling screen of this backlight module, and comprises multiple keycap.Described keycap respectively corresponding described transparent area is maybe arranged in this amputation district, and has at least one penetrating region that can penetrate for light.
Illuminated keyboard described in the utility model, this keyboard unit also comprises a plate base, this substrate for carrying described keycap, this bottom surface of this reflector plate this light guide plate coated and this side face, and outer peripheral edge extends towards this keyboard unit and is connected to the substrate of this keyboard unit.
The beneficial effects of the utility model are: by this anti-dazzling screen to forming this amputation district in the more weak place of light guide plate light, make this light guide plate part light leak, thus improve the luminous flux at this more weak place of light guide plate periphery light, make the specific region of this keyboard unit have good illumination effect.
Accompanying drawing explanation
Fig. 1 is a stereogram, and first embodiment of the utility model illuminated keyboard is described;
Fig. 2 is a three-dimensional exploded view, and this first embodiment is described;
Fig. 3 is a partial sectional view, and this first embodiment is described;
Fig. 4 is a partial sectional view of cutting line IV-IV in Fig. 1, illustrates that an amputation district of a slice anti-dazzling screen of this first embodiment makes a slice light guide plate part light leak;
Fig. 5 is a upward view, and this anti-dazzling screen and one deck adhesive linkage of this first embodiment are described, district is corresponding is provided with four keycaps in four amputation of this anti-dazzling screen;
Fig. 6 is a schematic diagram, and second embodiment of the utility model illuminated keyboard is described.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in detail.
Consult Fig. 1, Fig. 2 and Fig. 3, the first embodiment of the utility model illuminated keyboard comprises a backlight module 2, keyboard unit 3, and a shell 4.
This backlight module 2 comprises a slice light guide plate 21, luminescence unit 22, one deck adhesive linkage 24, a slice anti-dazzling screen 23, one deck glue-line 25, and a slice reflector plate 26.
This light guide plate 21 has a contrary end face 211 and a bottom surface 212, and the side face 213 of this end face 211 of connection and this bottom surface 212 periphery.
This luminescence unit 22 is arranged on this light guide plate 21, for providing light source, and has at least one light emitting diode 221 (LED).In the present embodiment, this light emitting diode 221 is seven, and is embedded the middle body at this light guide plate 21, and arranges at intervals near a center line L1 of this light guide plate 21.
This anti-dazzling screen 23 is arranged on the end face 211 of this light guide plate 21, and has multiple transparent area 231 that can penetrate for light, and at least one is formed at the amputation district 232 of its periphery.The making of this anti-dazzling screen 23, be that the sheet material that a slice can be adopted transparent hides not for printing opacity place with ink printing, then amputate unwanted part in periphery, wherein, non-printing-ink place is described transparent area 231, and periphery amputation place is this amputation district 232.
Consult Fig. 2, Fig. 4 and Fig. 5, this amputation district 232 makes the periphery of this anti-dazzling screen 23 not overlapping with the periphery of this light guide plate 21, therefore can make this light guide plate 21 part light leak.In the present embodiment, this anti-dazzling screen 23 has four amputation districts 232, respectively by four of this anti-dazzling screen 23 angle amputation.The reason that corner amputates is that in the present embodiment, this luminescence unit 22 is embedded the central authorities at this light guide plate 21, and therefore, corner, further from light source, causes luminous intensity lower.Behind four angles of this anti-dazzling screen 23 of amputation, the phenomenon (a radiation direction I as shown in Figure 4) of the corner generating portion light leak of this light guide plate 21 can be made, improve luminous flux whereby, increase brightness.
It is worth mentioning that, the configuration in this amputation district 232 can to should luminescence unit 22 setting and change, if this luminescence unit 22 only has one be arranged on the light emitting diode 221 in these light guide plate 21 1 corners (that is, for spot light), then this amputation district 232 is by other three angles of amputation relative to this corner.If this luminescence unit 22 has multiple light emitting diode 221 being formed at this light guide plate 21 side, then this amputation district 232 is by amputation two other angle relative to this luminescence unit 22 side.During concrete enforcement, this luminescence unit 22 is arranged on the side of this light guide plate 21 in contrast to this amputation district 232, and is understandable that, at least one angle of this amputation district 232 this anti-dazzling screen 23 removable.
The configuration mode in aforementioned amputation district 232 is in order at this light guide plate 21 light intensity more weak place generating portion light leak, and light is not absorbed by this anti-dazzling screen 23, improves luminous flux whereby and increases brightness.Therefore, the mode of this amputation district 232 aforementioned configuration can convert arbitrarily, and should with person disclosed in the utility model for restriction.
Consult Fig. 3 and Fig. 5, this adhesive linkage 24 discontinuously around being arranged on the periphery of this anti-dazzling screen 23 relative to this light guide plate 21 side, and for connecting this light guide plate 21 and this anti-dazzling screen 23.In the present embodiment, this adhesive linkage 24 adopts water-base cement, and is extinction material.
Consult Fig. 2 and Fig. 3, this glue-line 25 adopts extinction material, and surrounds the side face 213 being arranged on this light guide plate 21, and part extends to this bottom surface 212.In the present embodiment, this glue-line 25 adopts black water glue.
This reflector plate 26 is borrowed this glue-line 25 and connects the bottom surface 212 of this light guide plate 21, and has an outer peripheral edge 261, and this outer peripheral edge 261 extends and this bottom surface 212 of this light guide plate 21 coated and this side face 213 towards this anti-dazzling screen 23.In the present embodiment, be first this glue-line 25 is carried on the outer peripheral edge 261 of this reflector plate 26, then this reflector plate 26 surrounded and affixes to this light guide plate 21.
This keyboard unit 3 is arranged on the anti-dazzling screen 23 of this backlight module 2, and comprises a plate base 31, multiple keycap 32, multiple support 33, and multiple elastic component (not shown).
This substrate 31 to be arranged on this anti-dazzling screen 23 and for carrying described keycap 32, and surrounding connects with this reflector plate 26, that is, the outer peripheral edge 261 of this reflector plate 26 extends towards this keyboard unit 3 and borrows this glue-line 25 to be connected to the substrate 31 of this keyboard unit 3, and this bottom surface 212 of this light guide plate 21 coated and this side face 213.This substrate 31 has the vacancy section 311 in the described transparent area of multiple correspondence 231 and described amputation district 232.
Respectively by described vacancy section 311, corresponding described transparent area 231 is arranged described keycap 32, and each keycap 32 has the penetrating region 321 that at least one can penetrate for light.In the present embodiment, the corresponding described amputation district 232 of described keycap 32 four difference is wherein arranged, and, penetrating region 321 i.e. this keycap 32 of each keycap 32 for the character (Enter as shown in Figure 2) of display.
Described support 33 is arranged in described keycap 32 respectively, and two end opposite of each support 33 push against this keycap 32 and this substrate 31 respectively.Each elastic component is arranged in each keycap 32, and perseverance provides a resilient bias that this keycap 32 is tended to away from this substrate 31.The structure of described support 33 and described elastic component belongs to existing, does not repeat at this, and described structure should not with person disclosed in the utility model for restriction.
Consult Fig. 1, Fig. 2 and Fig. 3, thus, through the light that this luminescence unit 22 is launched, by the guiding by light guide plate 21, and penetrated by the described transparent area 231 of this anti-dazzling screen 23 and described amputation district 232, and dispersed from the penetrating region 321 of described keycap 32 by the described vacancy section 311 of this substrate 31, make this keyboard unit 3 produce luminous effect.
This shell 4 has a upper shell 41 and a lower house 42.This upper shell 41 wears for described keycap 32, and matches and this backlight module 2 accommodating and this keyboard unit 3 with this lower house 42.Though this shell 4 does with desktop keyboard product and illustrates in graphic, not as limit, the utility model also can practice in the shell (not shown) of notebook computer.
Via above explanation, advantage of the present utility model can be summarized as follows:
One, by this anti-dazzling screen 23 to forming this amputation district 232 in the more weak place of light guide plate 21 light, make this light guide plate 21 part light leak, light is not absorbed by this anti-dazzling screen 23, thus the luminous flux at this more weak place of light guide plate 21 periphery light is improved, the specific region of this keyboard unit 3 is made to have good illumination effect, the keyboards such as Esc and Ctrl that such as user commonly uses.
Two, this reflector plate 26 can make light reflection return this light guide plate 21, improve light utilization ratio, and this colloid 25 being positioned at this light guide plate 21 side can absorb straight rays, to avoid side light leak.
Three, this adhesive linkage 24 adopts the material of extinction, the refract light at this light guide plate 21 edge can be absorbed, make the luminescence of this keyboard unit 3 entirety more even.
Consult Fig. 6, the second embodiment of the utility model illuminated keyboard is identical with this first embodiment haply, and difference is only that the amputation district 232 of this anti-dazzling screen 23 makes the periphery of this anti-dazzling screen 23 form breach.
This amputation district 232 at random can be formed in this anti-dazzling screen 23 periphery, therefore, can select to form this amputation district 232 below the specific keycap 32 of this substrate 31 periphery contiguous, promote the brightness of this keycap 32 whereby, make user more can find this keycap 32 exactly.For example, below shift key, form this amputation district 232, also or correspondingly below directionkeys (not shown), F1 key to F12 key (not shown) can form described amputation district 232.
So, this second embodiment can only not complete outside effect of aforementioned first embodiment, also provides the configuration mode in this amputation district 232 another kind of, whereby, can promote the brightness of specific keycap 32, promote the convenience of identification.
In sum, by forming this amputation district 232 on this anti-dazzling screen 23, making this light guide plate 21 part light leak, increasing the luminous flux at this more weak place of light guide plate 21 light, promote the illumination effect of specific region, so really can the purpose of this utility model be reached.
Claims (8)
1. a backlight module, is characterized in that comprising:
A slice light guide plate, comprises a contrary end face and a bottom surface, and the side face of this end face of connection and this bottom periphery;
A luminescence unit, is arranged on this light guide plate, for providing light source;
A slice anti-dazzling screen, is arranged on the end face of this light guide plate, and comprises the amputation district that at least one is formed at its periphery, and this amputation district allows this light guide plate part light leak;
One deck glue-line, adopts extinction material, and surrounds the side face being arranged on this light guide plate, and part extends to this bottom surface; And
A slice reflector plate, connects the bottom surface of this light guide plate by means of this glue-line.
2. backlight module as claimed in claim 1, is characterized in that: this amputation district removes at least one angle of this anti-dazzling screen.
3. backlight module as claimed in claim 2, is characterized in that: this luminescence unit is embedded in the side of this light guide plate in contrast to this amputation district, and comprises at least one light emitting diode.
4. backlight module as claimed in claim 1, is characterized in that: this anti-dazzling screen comprises four amputation districts, respectively by four of this anti-dazzling screen angle amputation.
5. backlight module as claimed in claim 4, is characterized in that: this luminescence unit is embedded the middle body at this light guide plate, and comprises at least one light emitting diode.
6. backlight module as claimed in claim 1, is characterized in that: this backlight module also comprises the adhesive linkage that one deck connects this light guide plate and this anti-dazzling screen, and this adhesive linkage is discontinuously around the periphery of this anti-dazzling screen this light guide plate side relative.
7. an illuminated keyboard, comprises:
A backlight module as claimed in claim 1, this anti-dazzling screen also comprises multiple transparent area that can penetrate for light; And
A keyboard unit, is arranged on the anti-dazzling screen of this backlight module, and comprises multiple keycap, and described keycap respectively corresponding described transparent area is maybe arranged in this amputation district, and has at least one penetrating region that can penetrate for light.
8. illuminated keyboard as claimed in claim 7, it is characterized in that: this keyboard unit also comprises a plate base, this substrate for carrying described keycap, this bottom surface of this reflector plate this light guide plate coated and this side face, and outer peripheral edge extends towards this keyboard unit and is connected to the substrate of this keyboard unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420483953.3U CN204084009U (en) | 2014-08-26 | 2014-08-26 | Backlight module and illuminated keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420483953.3U CN204084009U (en) | 2014-08-26 | 2014-08-26 | Backlight module and illuminated keyboard |
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| Publication Number | Publication Date |
|---|---|
| CN204084009U true CN204084009U (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420483953.3U Active CN204084009U (en) | 2014-08-26 | 2014-08-26 | Backlight module and illuminated keyboard |
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| CN (1) | CN204084009U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109804278A (en) * | 2016-08-26 | 2019-05-24 | 分子印记公司 | Edge sealant for optical device encloses limit and halation mitigates |
| CN111584282A (en) * | 2019-02-19 | 2020-08-25 | 群光电能科技股份有限公司 | Backlight module applied to luminous keyboard |
| US10948651B1 (en) | 2019-09-26 | 2021-03-16 | Chicony Power Technology Co., Ltd. | Keyboard backlight module and manufacturing method thereof |
| US11198233B2 (en) | 2018-10-16 | 2021-12-14 | Magic Leap, Inc. | Methods and apparatuses for casting polymer products |
| US11513372B2 (en) | 2018-06-12 | 2022-11-29 | Magic Leap, Inc. | Edge sealant application for optical devices |
-
2014
- 2014-08-26 CN CN201420483953.3U patent/CN204084009U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109804278A (en) * | 2016-08-26 | 2019-05-24 | 分子印记公司 | Edge sealant for optical device encloses limit and halation mitigates |
| US11022748B2 (en) | 2016-08-26 | 2021-06-01 | Molecular Imprints, Inc. | Edge sealant confinement and halo reduction for optical devices |
| CN109804278B (en) * | 2016-08-26 | 2022-04-29 | 分子印记公司 | Edge sealant confinement and halo mitigation for optical devices |
| US11513372B2 (en) | 2018-06-12 | 2022-11-29 | Magic Leap, Inc. | Edge sealant application for optical devices |
| US11198233B2 (en) | 2018-10-16 | 2021-12-14 | Magic Leap, Inc. | Methods and apparatuses for casting polymer products |
| CN111584282A (en) * | 2019-02-19 | 2020-08-25 | 群光电能科技股份有限公司 | Backlight module applied to luminous keyboard |
| CN111584282B (en) * | 2019-02-19 | 2022-12-30 | 群光电能科技股份有限公司 | Backlight module applied to luminous keyboard |
| US10948651B1 (en) | 2019-09-26 | 2021-03-16 | Chicony Power Technology Co., Ltd. | Keyboard backlight module and manufacturing method thereof |
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