CN2682444Y - Backlight type light conducting plate - Google Patents
Backlight type light conducting plate Download PDFInfo
- Publication number
- CN2682444Y CN2682444Y CN 200420001225 CN200420001225U CN2682444Y CN 2682444 Y CN2682444 Y CN 2682444Y CN 200420001225 CN200420001225 CN 200420001225 CN 200420001225 U CN200420001225 U CN 200420001225U CN 2682444 Y CN2682444 Y CN 2682444Y
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- Prior art keywords
- light
- light guide
- guide plate
- guide section
- reflecting surface
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- Expired - Lifetime
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- 230000011514 reflex Effects 0.000 claims description 4
- 230000004907 flux Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 8
- 238000005286 illumination Methods 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 241000278713 Theora Species 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003334 potential effect Effects 0.000 description 1
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- Light Guides In General And Applications Therefor (AREA)
- Planar Illumination Modules (AREA)
Abstract
The utility model discloses a backlight type light conducting panel, which is applicable to backlight modules provided with at least one light-emitting element. The backlight type light conducting panel comprises at least one reflecting region, a reflection plane which is arranged on the reflecting region, and a light conducting part which is connected with the reflecting region and is used for forming a display field, wherein, the light-emitting element faces away from the display field and faces the reflection plane. The reflection plane of the reflecting region is used for reflecting the light of the light-emitting element and transmitting the light to the light conducting part, the light conducting part forms the display fields of different forms according to the intended requirements, and therefore, the evenness degree of the backlight type light conducting plate is increased.
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 applied to be provided with the backlight module of at least one light-emitting component, and this back light type light guide plate comprises: at least one echo area, and it has at least one reflecting surface; The light guide section of reservation shape is connected in this echo area; Wherein, the light of described light-emitting component emission reflexes to this light guide section via this echo area, in order to form the viewing area.
Back light type light guide plate described in the utility model, wherein this light-emitting component is light emitting diode (LED).
Back light type light guide plate described in the utility model, wherein this reflecting surface is arcuation or flat.Wherein this reflecting surface is connected in pairs and in twos.
Back light type light guide plate described in the utility model further comprises the reflecting element with this echo area.
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 be arranged in this light guide section, this light guide frame is in two opposite end portions of the opposite side of this echo area, be concaved with two reflectings surface respectively, this reflecting surface can change its degree of depth that is arranged with, in order to adjust the luminous flux of this reflecting surface.
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 surface is a parabolic shape, this light-emitting component places this parabolic focus, so that make parallel this light guide section that is passed to of this light.
As mentioned above, a kind of back light type light guide plate that the utility model provides, be 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, be located at the reflecting surface of this echo area, and be connected in the light guide section of this echo area, in order to form the viewing area, wherein, this light-emitting component is back to this viewing area, towards this reflecting surface, utilize the reflecting surface of this echo area to reflect the light of this light-emitting component, and transmit this light, and this light guide section forms this multi-form viewing area according to predetermined demand to this light guide section, so this back light type light guide plate is improved all degree.In order to allow to further to understand technical characterictic of the present utility model and technology contents, please refer to following relevant concrete enforcement profit of the present utility model and accompanying drawing thereof, yet, shown in accompanying drawing only for reference with 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;
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
The light emitting diode 5a first leaded light path 51a
Second leaded light path 52a viewing area 6a
Dark space d lighting angle α
Back light type light guide plate 1 echo area 2
Reflecting surface 21 trench 211
Light guide section 4 reflectings surface 41
Light-emitting component 5 first leaded light paths 51
The 3rd leaded light path 53, the second leaded light path 52
The 5th leaded light path 55, the 4th leaded light path 54
The 7th leaded light path 57, the 6th leaded light path 56
58 viewing areas 6, the 8th leaded light path
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 surface 21 and is arranged in the transmission plane 22 of this reflecting surface 21, the light of this light-emitting component 5 emissions via this echo area 2 reflex to this light guide section 4, to form this viewing area 6, wherein this reflecting surface 21 is an arcuation, the parabolic shape or this reflecting surface 21 that maybe this light are reflected into directional light are flat, reflecting surface 21 in pairs and be connected and form a predetermined angular, this light-emitting component 5 is placed in this echo area 2.
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 surface 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; Wherein, this light-emitting component 5 is back to this viewing area 6, in the face of this reflecting surface 21 and being located in this echo area 2.Whereby, the light of these light-emitting component 5 emissions of reflecting surface 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 surface 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, so this viewing area 6 is the rectangular illumination district along this light guide section 4, 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 surface 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 surface 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 surface 21 and transmission plane 22, 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 surface 21 reflections by one of them, or this light of these light-emitting component 5 emissions can be along the 4th leaded light path 54, reflecting surface 21 by one of them reflexes to another reflecting surface 21, further is passed to this transmission plane 22 after the reflection again; Therefore this reflecting surface 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 surface 21 and transmission planes 22, these two pairs of reflectings surface 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 surface 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 surface 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 surface 21 further is parabolic shape, and this light-emitting component 53 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 at this reflecting surface 21.
Please refer to shown in Fig. 3 E, this reflecting surface 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 surface 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 surface 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 surface 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. back light type light guide plate is applied to be provided with the backlight module of 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 surface;
The light guide section of reservation shape is connected in this echo area;
Wherein, the light of described light-emitting component emission reflexes to this light guide section via this echo area, forms the viewing area.
2. require 1 described back light type light guide plate as the power example, it is characterized in that described light-emitting component is a light emitting diode.
3. require 1 described back light type light guide plate as the power example, it is characterized in that described reflecting surface is arcuation or flat.
4. require 3 described back light type light guide plate as the power example, it is characterized in that described reflecting surface is connected in pairs and in twos.
5. require 1 described back light type light guide plate as the power example, it is characterized in that, further comprise reflecting element with this echo area.
6. require 5 described back light type light guide plate as the power example, it is characterized in that described light guide section is the frame shape.
7. require 6 described back light type light guide plate as the power example, it is characterized in that described reflecting element further coats the housing side or the inside casing side of this light guide section.
8. require 6 described back light type light guide plate as the power example, it is characterized in that, the number of described echo area is one, and be arranged in this light guide section, this frame shape light guide section is concaved with respectively in two opposite end portions of the opposite side of this echo area can change two reflectings surface that it is arranged with the degree of depth, to adjust the luminous flux of this reflecting surface.
9. require 1 described back light type light guide plate as the power example, it is characterized in that described light guide section is a tabular.
10. require 9 described back light type light guide plate as the power example, it is characterized in that described reflecting surface is a parabolic shape, this light-emitting component places this parabolic focus, parallel this light guide section that is passed to of this light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420001225 CN2682444Y (en) | 2004-02-03 | 2004-02-03 | Backlight type light conducting plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420001225 CN2682444Y (en) | 2004-02-03 | 2004-02-03 | Backlight type light conducting plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2682444Y true CN2682444Y (en) | 2005-03-02 |
Family
ID=34605321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420001225 Expired - Lifetime CN2682444Y (en) | 2004-02-03 | 2004-02-03 | Backlight type light conducting plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2682444Y (en) |
Cited By (2)
| 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 |
| CN102597605A (en) * | 2009-11-09 | 2012-07-18 | 三菱电机株式会社 | Surface light source apparatus and display apparatus using same |
-
2004
- 2004-02-03 CN CN 200420001225 patent/CN2682444Y/en not_active Expired - Lifetime
Cited By (3)
| 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 |
| CN102597605A (en) * | 2009-11-09 | 2012-07-18 | 三菱电机株式会社 | Surface light source apparatus and display apparatus using same |
| US9274265B2 (en) | 2009-11-09 | 2016-03-01 | Mitsubishi Electric Corporation | Surface light source apparatus and display apparatus using same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140203 Granted publication date: 20050302 |
|
| CX01 | Expiry of patent term |