CN2658760Y - Back light type light guide plate - Google Patents
Back light type light guide plate Download PDFInfo
- Publication number
- CN2658760Y CN2658760Y CNU032093519U CN03209351U CN2658760Y CN 2658760 Y CN2658760 Y CN 2658760Y CN U032093519 U CNU032093519 U CN U032093519U CN 03209351 U CN03209351 U CN 03209351U CN 2658760 Y CN2658760 Y CN 2658760Y
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- CN
- China
- Prior art keywords
- light
- light guide
- guide plate
- guide section
- reflecting
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- Expired - Lifetime
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Abstract
The utility model discloses a thin backlighting light-guiding plate applicable in a backlighting module at least provided with a light-emitting element, and consists of at least a reflecting zone, a reflecting element wrapping the reflecting zone and a light-guiding portion connected with the reflecting zone and used to form into a display zone, wherein the light-emitting element is back on to the display zone, faced toward the reflecting element, and is held in a holding groove in the reflecting zone. A reflecting surface in the reflecting zone is used to reflect the light emitted by the light-emitting element and the reflected light is transmitted to the light-guiding portion. The light-guiding portion shapes into the display zone of different forms according to the demand. Thus the utility model can enhance the regularity.
Description
Technical field
The utility model relates to a kind of back light type light guide plate, particularly a kind of back light type light guide plate with Gao Jundu.
Background technology
Exploitation along with consumption electronic products, the scope that backlight module is used also gets over extensively, as screen, the button of mobile phone, laptop computer, personal digital assistant, or Trackpad (Touchpad) and pointer (Pointing Sticks) etc. provide light illumination.
Please refer to shown in Figure 1, be known light guide plate 1a, be applied to have the backlight module of light emitting diode 5a (LED), this light emitting diode 5a is adjacent to the ora terminalis of the plate body 10a of this light guide plate 1a in the mode in the face of viewing area 6a, this light emitting diode 5a is different because of each manufacturers design and technological ability, and has different lighting angle α, this lighting angle α is that this light emitting diode 5a can launch the first leaded light path 51a of the wide limit of light and the angle between the second leaded light path 52a, because the influence of the lighting angle α of this light emitting diode 5a, this plate body 10a certainly will be in the both sides of this light emitting diode of symmetry 5a, have the dark space d that can't show this light, all degree of this light guide plate 1a can't improve.
So the utility model people is at above-mentioned shortcoming, concentrate on studies and cooperate the utilization of scientific principle, propose a kind of reasonable in design and effectively improve the utility model of above-mentioned shortcoming.
Summary of the invention
Fundamental purpose of the present utility model is to provide a kind of back light type light guide plate, and the illumination of Gao Jundu can be provided according to predetermined demand.
Above-mentioned purpose of the present utility model is achieved in that a kind of back light type light guide plate, is located at a backlight module, and this backlight module is provided with at least one light-emitting component; It is characterized in that this back light type light guide plate comprises:
At least one echo area, it has at least one reflecting slant and is adjacent to the transmission plane of this reflecting slant and is arranged with at least one storage tank in this transmission plane;
Reflecting element is coated on this echo area; And
Light guide section is connected in the transmission plane of this echo area, and the thickness of this light guide section is below the 2mm;
Wherein, described light-emitting component is back to this light guide section, in the face of this reflecting slant, and described light-emitting component is located in this storage tank.
Back light type light guide plate described in the utility model, wherein this light-emitting component is a light emitting diode.
Back light type light guide plate described in the utility model, wherein this reflecting slant is arcuation or flat.
Back light type light guide plate described in the utility model, wherein this reflecting slant is connected in pairs and in twos.
Back light type light guide plate described in the utility model, wherein this reflecting element further coats this light guide section.
Back light type light guide plate described in the utility model, wherein this light guide section is the frame shape.
Back light type light guide plate described in the utility model, wherein this reflecting element further coats the housing side or the inside casing side of this light guide section.
Back light type light guide plate described in the utility model, wherein the number of this echo area is one, and is arranged in this light guide section, and this light guide section inside casing is concaved with two reflectings surface respectively, and this two reflecting surface lays respectively at two opposite end portions of the opposite side of this echo area.
Back light type light guide plate described in the utility model, wherein this light guide section is a tabular.
Back light type light guide plate described in the utility model, wherein this reflecting slant is a parabolic shape, this storage tank places this parabolic focus.
As mentioned above, a kind of back light type light guide plate that the utility model provides is applied to be provided with the backlight module of at least one light-emitting component; This back light type light guide plate comprises at least one echo area, coat the reflecting element of this echo area and be connected in the light guide section of this echo area, in order to form the viewing area; Wherein, the thickness of this light guide section is below the 2mm, this light-emitting component is back to this viewing area, towards this reflecting element and be placed in the storage tank of this echo area, utilize the reflecting slant of this echo area to reflect the light of this light-emitting component, and transmit this light to this light guide section, and this light guide section forms this multi-form viewing area according to predetermined demand, so this back light type light guide plate is improved all degree.
Below, in conjunction with specific embodiment of the utility model and accompanying drawing thereof, technical characterictic of the present utility model and technology contents are described in further detail, yet, shown in accompanying drawing only for reference with the explanation usefulness, be not to be used for the utility model is limited.
Description of drawings
Fig. 1 is the synoptic diagram of known light guide plate;
Fig. 2 A is the front elevational schematic of the utility model back light type light guide plate;
Fig. 2 B is the schematic side view of the utility model back light type light guide plate;
Fig. 3 A is the synoptic diagram of first embodiment of the utility model echo area;
Fig. 3 B is the synoptic diagram of second embodiment of the utility model echo area;
Fig. 3 C is the synoptic diagram of the 3rd embodiment of the utility model echo area;
Fig. 3 D is the synoptic diagram of the 4th embodiment of the utility model echo area;
Fig. 3 E is the synoptic diagram of the 5th embodiment of the utility model echo area;
Fig. 4 is the synoptic diagram of an embodiment of the utility model light guide section; And
Fig. 5 is the synoptic diagram of another embodiment of the utility model light guide section.
Wherein, description of reference numerals is as follows:
Known: light guide plate 1a, plate body 10a, light emitting diode 5a, the first leaded light path 51a, the second leaded light path 52a, viewing area 6a, dark space d, lighting angle α;
The utility model: back light type light guide plate 1, echo area 2, reflecting slant 21, trench 211, transmission plane 22, storage tank 23, reflecting element 3, light guide section 4, reflecting surface 41, light-emitting component 5, the first leaded light path 51, the second leaded light path 52, the 3rd leaded light path 53, the 4th leaded light path 54, the 5th leaded light path 55, the 6th leaded light path 56, the 7th leaded light path 57, the 8th leaded light path 58, viewing area 6.
Embodiment
Please refer to shown in Fig. 2 A and Fig. 2 B, the utility model provides a kind of back light type light guide plate 1, and it is applied to comprise the backlight module of at least one light-emitting component 5; This back light type light guide plate 1 comprises at least one echo area 2, be coated on the reflecting element 3 of this echo area 2 and be connected in the light guide section 4 of the reservation shape of this echo area 2, in order to form a viewing area 6; Wherein, this echo area 2 has at least one reflecting slant 21, be arranged in the transmission plane 22 of this reflecting slant 21 and be arranged with at least one storage tank 23 in this transmission plane 22, wherein this reflecting slant 21 is an arcuation, the parabolic shape or this reflecting slant 21 that maybe this light are reflected into directional light are flat, reflecting slant 21 in pairs and be connected and form a predetermined angular, wherein this storage tank 23 is in order to ccontaining this light-emitting component 5.
This light-emitting component 5 is a pointolite, the light of launching is the non-parallel light with lighting angle, this lighting angle is according to each manufacturers design and technological ability and different, this light-emitting component 5 comprises light emitting diode (LED, Light Emitting Diode), generally speaking, the lighting angle of this light emitting diode is that 70 degree are to 120 degree, so, the utility model provides this different predetermined angular of reflecting slant 21 pinchings and has different reflection potentiales, angle in order to this light reflection of amplifying this light-emitting component 5, make the light that is passed to this light guide section 4, can be because of the restriction of the lighting angle of this light-emitting component 5, and be limited to a certain scope of this light guide section 4, further improve all degree of this light guide section 4; This light guide section 4 is connected in the transmission plane 22 of this echo area 2, and the thickness of this light guide section 4 is below the 2mm; Wherein, this light-emitting component 5 is back to this viewing area 6, in the face of this reflecting slant 21 and being located in this storage tank 23.Whereby, the light of these light-emitting component 5 emissions of reflecting slant 21 reflections of this echo area 2, this light is passed to this light guide section 4 through transmission plane 22; Wherein, this reflecting element 3 coats this echo area 2, makes this light only can be passed to this light guide section 4 by this transmission plane 22, and reduces the loss of this light; Again, this light guide section 4 can be connected in this transmission plane 22 with various reservation shape, makes this back light type light guide plate 1 can form this multi-form viewing area 6.
The utility model utilize this light-emitting component 5 back to this viewing area 6, and the setting of this reflecting slant 21, in order to reflect this light and to be passed to light guide section 4, form this back light type light guide plate 1 of Gao Jundu.
This light guide section 4 is the frame shape, and it can comprise the shape that rectangle, dihedral, circle or the like design arbitrarily by demand; As Fig. 2 A, this light guide section 4 is a rectangle frame, this reflecting element 3 coats the bottom surface of this light guide section 4, or further coat the housing side of this light guide section 4, or further coat the inside casing side of this light guide section 4, be to be rectangular illumination district along this light guide section 4 with this viewing area 6, wherein the light of these light-emitting component 5 emissions is along the first leaded light path 51 and 52 transmission of the second leaded light path, the light in this first leaded light path 51 is by these light-emitting component 5 emissions, after these reflecting slant 21 reflections once, pass this transmission plane 22 and be passed in this light guide section 4, this light guide section 4 is provided with two reflectings surface 41 respectively in two opposite end portions of the opposite side of this light-emitting component 5, in order to the light of reflection along this first leaded light path 51; This light in this second leaded light path 52 is by 5 emissions of this light-emitting component, after twice of these reflecting slant 21 reflection, passes this transmission plane 22 and is passed to a side of this light guide section 4 identical with this light-emitting component 5; Be by this light via the transmission in this first leaded light path 51 and this second leaded light path 52 evenly branch in this light guide section 4.
Please refer to Fig. 3 A, this echo area 2 is made of a pair of reflecting slant 21 and transmission plane 22, this light-emitting component 5 is placed in storage tank 23, this light of these light-emitting component 5 emissions can be along the 3rd leaded light path 53, be passed to this transmission plane 22 after reflecting slant 21 reflections by one of them, or this light of this light-emitting component 5 emissions can be along the 4th leaded light path 54, reflexes to another reflecting slant 21 by one of them reflecting slant 21, further is passed to this transmission plane 22 after the reflection again; Therefore this reflecting slant 21 can reach the function of this light being disperseed to be passed to this light guide section 4 really, and can adjust this light and disperse bang path according to this predetermined angular of predetermined demand pinching, makes all degree of this light guide section 4 meet this predetermined demand.
Please refer to shown in Fig. 3 B, this echo area 2 is made of two paired reflecting slant 21 and transmission planes 22, these two pairs of reflecting slant 21 connect by a trench 211 symmetries, therefore, this light-emitting component 5 is in the face of these trench 211 these light of emission, and this light is to produce bigger incident angle because of this trench 211 closely is provided with, and strengthens the wide more probability of dispersion that this light is passed to this light guide section 4, and being provided with apart from far away more of this trench 211, the dispersion range of this light is wide more.
Please refer to shown in Fig. 3 C, this predetermined angular of these reflecting slant 21 pinchings is more little, and it is wide more that this light is passed to the dispersion of this light guide section 4; In sum, the utility model can utilize the distance that is provided with of the predetermined angular of these reflecting slant 21 pinchings and this trench 211, adjusts the distribution range that light is passed to this light guide section 4, in order to all degree of the back light type light guide plate 1 that reaches this predetermined demand.
Please refer to shown in Fig. 3 D, this reflecting slant 21 further is parabolic shape, and this storage tank 23 places this parabolic focus, makes this light of these light-emitting component 5 emissions reflect parallel being passed in this light guide section 4 in back in this reflecting slant 21.
Please refer to shown in Fig. 3 E, this reflecting slant 21 further is paired arcuation, by the curvature of adjusting this arcuation, adjusts the path that this light is passed to this light guide section 4.
As Fig. 4, this light guide section 4 is circular, and this light-emitting component 5 is placed in this echo area 2 back to this light guide section 4, the light of these these light-emitting component 5 emissions of reflecting slant 21 reflections, and this light moves along the reservation shape of this light guide section 4; Utilize this light along the 5th leaded light path 55 and the 6th leaded light path 56 transmit, and then reach the Gao Jundu requirement of this back light type light guide plate 1.
Please refer to shown in Figure 5, this light guide section 4 is a rectangular plate shape, and be equipped with two echo areas 2 respectively in relative both sides, this light-emitting component 5 is placed in this echo area 2 back to this light guide section 4 respectively, these reflecting slant 21 these light of reflection, this light along the 7th leaded light path 57 and the 8th leaded light path 58 be passed to this light guide section 4, and then reach the requirement of the Gao Jundu of this back light type light guide plate 1.
The utility model utilizes this light-emitting component 5 back to the setting that this viewing area 6 reaches in the face of this reflecting slant 21, in order to reflect this light and to be passed to this light guide section 4, forms this back light type light guide plate 1 of Gao Jundu.
Therefore, this back light type light guide plate 1 that the utility model provides provides the illumination of this viewing area 6 of specific region, and the product that it need can be applicable to identification, guide etc. not only applies to consumption electronic products, also has the more application of diversification.
In sum, the utility model can reach its intended purposes and effect really, and still, the above technological means only is a preferred embodiment of the present utility model, modification and variation that any foundation spirit of the present utility model, feature are done all are contained in the appended claim scope.
Claims (10)
1. a back light type light guide plate is located at a backlight module, and this backlight module is provided with at least one light-emitting component; It is characterized in that this back light type light guide plate comprises:
At least one echo area, it has at least one reflecting slant and is adjacent to the transmission plane of this reflecting slant and is arranged with at least one storage tank in this transmission plane;
Reflecting element is coated on this echo area; And
Light guide section is connected in the transmission plane of this echo area, and the thickness of this light guide section is below the 2mm;
Wherein, described light-emitting component is back to this light guide section, in the face of this reflecting slant, and described light-emitting component is located in this storage tank.
2. back light type light guide plate as claimed in claim 1 is characterized in that, described light-emitting component is a light emitting diode.
3. back light type light guide plate as claimed in claim 1 is characterized in that, described reflecting slant is arcuation or flat.
4. back light type light guide plate as claimed in claim 3 is characterized in that described reflecting slant is connected in pairs and in twos.
5. back light type light guide plate as claimed in claim 1 is characterized in that described reflecting element further coats this light guide section.
6. back light type light guide plate as claimed in claim 1 is characterized in that, described light guide section is the frame shape.
7. back light type light guide plate as claimed in claim 6 is characterized in that, described reflecting element further coats the housing side or the inside casing side of this light guide section.
8. back light type light guide plate as claimed in claim 6, it is characterized in that the number of described echo area is one, and be arranged in this light guide section, this light guide section inside casing is concaved with two reflectings surface respectively, and this two reflecting surface lays respectively at two opposite end portions of the opposite side of this echo area.
9. back light type light guide plate as claimed in claim 1 is characterized in that, described light guide section is a tabular.
10. back light type light guide plate as claimed in claim 9 is characterized in that, described reflecting slant is a parabolic shape, and this storage tank places this parabolic focus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032093519U CN2658760Y (en) | 2003-09-08 | 2003-09-08 | Back light type light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032093519U CN2658760Y (en) | 2003-09-08 | 2003-09-08 | Back light type light guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2658760Y true CN2658760Y (en) | 2004-11-24 |
Family
ID=34325112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032093519U Expired - Lifetime CN2658760Y (en) | 2003-09-08 | 2003-09-08 | Back light type light guide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2658760Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100529878C (en) * | 2005-07-15 | 2009-08-19 | 鸿富锦精密工业（深圳）有限公司 | Light-negative moulding set |
| WO2009100610A1 (en) * | 2008-01-30 | 2009-08-20 | Dongguan Memtech Electronic Products Co., Ltd | Light guiding plate for uniformly emitting light |
| CN102043187A (en) * | 2010-10-29 | 2011-05-04 | 苏州茂立光电科技有限公司 | Light guide plate and backlight module |
| CN102054607A (en) * | 2009-10-28 | 2011-05-11 | 群康科技(深圳)有限公司 | Backlight key |
-
2003
- 2003-09-08 CN CNU032093519U patent/CN2658760Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100529878C (en) * | 2005-07-15 | 2009-08-19 | 鸿富锦精密工业（深圳）有限公司 | Light-negative moulding set |
| WO2009100610A1 (en) * | 2008-01-30 | 2009-08-20 | Dongguan Memtech Electronic Products Co., Ltd | Light guiding plate for uniformly emitting light |
| CN102054607A (en) * | 2009-10-28 | 2011-05-11 | 群康科技(深圳)有限公司 | Backlight key |
| CN102043187A (en) * | 2010-10-29 | 2011-05-04 | 苏州茂立光电科技有限公司 | Light guide plate and backlight module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130908 Granted publication date: 20041124 |