CN105303982A - Display device for household appliances - Google Patents
Display device for household appliances Download PDFInfo
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- CN105303982A CN105303982A CN201410337391.6A CN201410337391A CN105303982A CN 105303982 A CN105303982 A CN 105303982A CN 201410337391 A CN201410337391 A CN 201410337391A CN 105303982 A CN105303982 A CN 105303982A
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Abstract
The invention discloses a display device for household appliances. The display device for the household appliances comprises a circuit board, a light-emitting diode, a light guide cavity and a display panel, wherein the light-emitting diode is arranged on the circuit board, the light guide cavity is formed in the circuit board, a light guide passage is formed in the light guide cavity, an axial section of the inner wall of the light guide cavity is in the shape of a hyperbolic curve or parabolic curve, the light-emitting diode is arranged in the light guide passage and is positioned at the focal point position of the hyperbolic curve or parabolic curve, and the display panel is arranged on the light guide cavity and covers the light guide passage. The display device for the household appliances has the advantages of clear and bright display effect, high illumination intensity, even illumination, low cost and the like.
Description
Technical field
The present invention relates to field of household appliances, in particular to a kind of display device for household electrical appliance.
Background technology
Household electrical appliance in correlation technique, the light-emitting lamp source of its display device adopts LED, and LED can be equivalent to pointolite when luminescence, when throwing light on to display panel, not easily reaches intensity of illumination greatly and clearly display effect.In order to promote clearness and intensity of illumination, need the quantity of increase LED or adopt the LED that intensity of illumination is higher, but cost be higher.In addition, the illumination that display panel easily produces middle is more concentrated, the halation phenomenon that the region away from centre is fuzzyyer.
Summary of the invention
The present invention is intended to solve one of above-mentioned technical matters of the prior art at least to a certain extent.For this reason, one object of the present invention is to propose a kind of display device for household electrical appliance, this display device being used for household electrical appliance have display effect clear bright, intensity of illumination large and evenly, low cost and other advantages.
For achieving the above object, the present invention proposes a kind of display device for household electrical appliance, and the described display device for household electrical appliance comprises: circuit board; Light emitting diode, described light emitting diode is located on described circuit board; Guide-lighting cavity, described guide-lighting cavity to be located on described circuit board and to have guide lighting channel in described guide-lighting cavity, described light emitting diode is located in described guide lighting channel, the axial cross section of the inwall of described guide-lighting cavity is hyperbolic curve or para-curve, and described light emitting diode is positioned at described hyperbolic curve or described parabolical focus place; Display panel, described display panel to be located on described guide-lighting cavity and guide lighting channel described in described display panel capping.
According to the display device for household electrical appliance of the embodiment of the present invention, be hyperbolic curve or parabolical described guide-lighting cavity by arranging the axial cross section of inwall, the light ray parallel that described light emitting diode can be made to release projects on described display panel, higher to the utilization factor of the light that described light emitting diode is released, thus can reduce costs.In addition, because light ray parallel projects on described display panel, both can improve intensity of illumination, and can not cause again the halation phenomenon that zone line light is concentrated, illumination is more even, and display effect is more clear.Therefore, according to the display device for household electrical appliance of the embodiment of the present invention have display effect clear bright, intensity of illumination large and evenly, low cost and other advantages.
In addition, the display device for household electrical appliance according to the above embodiment of the present invention can also have following additional technical characteristic:
According to one embodiment of present invention, the described display device for household electrical appliance also comprises lamp mirror paster, and described lamp mirror paster to be located between described guide-lighting cavity and described display panel and guide lighting channel described in the capping of described lamp mirror paster.Described display panel can be made thus to present the illumination effect of word and/or pattern.
According to one embodiment of present invention, described guide lighting channel comprises: guide-lighting section, and the contiguous described display panel of described guide-lighting section arranges and the axial cross section of the inwall of described guide-lighting section is described hyperbolic curve or described para-curve; Positioning section, described positioning section is connected with described guide-lighting section and the contiguous described circuit board of described positioning section is arranged, and described light emitting diode is located in described positioning section.Not only can ensure the display effect of described display device thus, and the inplace stability of described light emitting diode can be ensured.
According to one embodiment of present invention, described light emitting diode is SMD light emitting diode.Thus can so that the installation of described light emitting diode.
According to one embodiment of present invention, the xsect of described paster type light emitting type is circular, and the inwall of described positioning section is parallel with the periphery wall of described light emitting diode.Described positioning section can be convenient to so further position described light emitting diode.
According to one embodiment of present invention, the roughness of the inwall of described guide lighting channel is minute surface level.The display effect of described display device can be improved like this.
According to one embodiment of present invention, the inwall plated film of described guide lighting channel.The display effect of described display device can be improved so further.
According to one embodiment of present invention, described circuit board is printed circuit board (PCB).Thus can so that the installation of described light emitting diode.
According to one embodiment of present invention, the distance between described circuit board and described display panel is 5 millimeters-15 millimeters.The control of cost can be convenient to thus while the display effect ensureing described display device.
According to one embodiment of present invention, the diameter of the xsect of one end of the described display panel of the vicinity of described guide lighting channel is 2 millimeters-5 millimeters.Can ensure so all to be projected on said display panel by the directional light of the inwall of described guide lighting channel reflection, and be convenient to the control of the size to described guide lighting channel.
Accompanying drawing explanation
Fig. 1 is the local lighting schematic diagram schematic diagram of the display device for household electrical appliance according to the embodiment of the present invention, and wherein dotted line is light trend.
Fig. 2 is the partial sectional view of the display device for household electrical appliance according to the embodiment of the present invention, and wherein light emitting diode is not shown.
Reference numeral: for the diameter b of the xsect of one end of the display device 1 of household electrical appliance, circuit board 100, light emitting diode 200, guide-lighting cavity 300, guide lighting channel 310, guide-lighting section 311, positioning section 312, display panel 400, lamp mirror paster 500, the distance a between circuit board 100 and display panel 400, the contiguous display panel 400 of guide lighting channel 310.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Below with reference to the accompanying drawings the display device 1 for household electrical appliance according to the embodiment of the present invention is described.
As depicted in figs. 1 and 2, circuit board 100, light emitting diode 200 (LED), guide-lighting cavity 300 and display panel 400 is comprised according to the display device 1 for household electrical appliance of the embodiment of the present invention.
Light emitting diode 200 is located on circuit board 100.Guide-lighting cavity 300 to be located on circuit board 100 and to have the guide lighting channel 310 of both ends open in guide-lighting cavity 300, and light emitting diode 200 is located at the one end in guide lighting channel 310.The axial cross section of the inwall of guide-lighting cavity 300 is hyperbolic curve or para-curve, and light emitting diode 200 is positioned at described hyperbolic curve or described parabolical focus place.In other words, after sectioning guide lighting channel 310 along the axis of guide lighting channel 310, the lines of the inwall of guide lighting channel 310 form described hyperbolic curve or described at least partially parabolical, and light emitting diode 200 is positioned at this hyperbolic curve and parabolical focus place.Display panel 400 to be located on guide-lighting cavity 300 and the other end of display panel 400 capping guide lighting channel 310.
According to the display device 1 for household electrical appliance of the embodiment of the present invention, be hyperbolic curve or parabolical guide-lighting cavity 300 by arranging the axial cross section of inwall, guide-lighting cavity 300 can be utilized to carry out leaded light, because light emitting diode 200 is positioned in described hyperbolic curve or described parabolical focus, the scattered light that the light emitting diode 200 as pointolite is released is incident upon display panel 400 (as shown in phantom in fig. 1) after being reflected as directional light through the inwall of guide lighting channel 310.Compare the display device for household electrical appliance in correlation technique, the light ray parallel that light emitting diode 200 can be made to release for the display device 1 of household electrical appliance projects display panel 400, higher to the utilization factor of the light that light emitting diode 200 is released, even if adopt compared with low-intensity and less light emitting diode 200, also can reach the display effect that display is clear and large, thus can reduce costs.In addition, because light ray parallel projects on display panel 400, both can improve intensity of illumination, and can not cause again the halation phenomenon that zone line light is concentrated, illumination is more even, and display effect is more clear.Therefore, according to the display device 1 for household electrical appliance of the embodiment of the present invention have display effect clear bright, intensity of illumination large and evenly, low cost and other advantages.
Below with reference to the accompanying drawings the display device 1 for household electrical appliance according to the specific embodiment of the invention is described.
In specific embodiments more of the present invention, as depicted in figs. 1 and 2, circuit board 100, light emitting diode 200, guide-lighting cavity 300, display panel 400 and lamp mirror paster 500 is comprised according to the display device 1 for household electrical appliance of the embodiment of the present invention.
Lamp mirror paster 500 can be located between guide-lighting cavity 300 and display panel 400 and lamp mirror paster 500 can capping guide lighting channel 310.Specifically, lamp mirror paster 500 can there be word and/or pattern by silk-screen.The light that light emitting diode 200 sends can be incident upon on display panel 400 through lamp mirror paster 500 after the reflection of the inwall of guide lighting channel 310, can, by arranging word and/or pattern on lamp mirror paster 500, display panel 400 be made to present the illumination effect of word and/or pattern thus.
Alternatively, circuit board 100 can be printed circuit board (PCB), and light emitting diode 200 can be SMD light emitting diode.Not only can ensure the display effect of the display device 1 for household electrical appliance thus, and can so that the installation of light emitting diode 200.
Fig. 1 and Fig. 2 shows the display device 1 for household electrical appliance according to the present invention's concrete example.As depicted in figs. 1 and 2, guide lighting channel 310 can comprise guide-lighting section 311 and positioning section 312.Guide-lighting section 311 can be close to display panel 400 and be arranged and the axial cross section of the inwall of guide-lighting section 311 can be described hyperbolic curve or described para-curve.Positioning section 312 can be connected with guide-lighting section 311 and positioning section 312 can be arranged by proximate circuitry plate 100, and light emitting diode 200 can be located in positioning section 312.
In other words, the inwall of the guide-lighting section 311 of guide lighting channel 310 forms hyperbolic curve or a parabolical part, for the light that Refl-Luminous diode 200 sends.The part of the contiguous focus of described hyperbolic curve or para-curve is replaced by positioning section 312, the shape of positioning section 312 and the shape of light emitting diode 200 suitable, for positioning light emitting diode 200.
The light that guide-lighting section 311 pairs of light emitting diodes 200 not only can be utilized thus to release reflects, to ensure the display effect of the display device 1 being used for household electrical appliance, and positioning section 312 pairs of light emitting diodes 200 can be utilized to position, to ensure the inplace stability of light emitting diode 200.
Particularly, as shown in Figure 1, the xsect of described paster type light emitting type can be circular, and namely light emitting diode 200 can be circular patch formula light emitting diode.The inwall of positioning section 312 can be parallel with the periphery wall of light emitting diode 200, and namely positioning section 312 can be roughly cylindrical.Positioning section 312 can be made so more to mate with light emitting diode 200, position to be convenient to positioning section 312 pairs of light emitting diodes 200 further.
Advantageously, the roughness of the inwall of passage 310 is can minute surface level.The reflecting effect of the light that guide lighting channel 310 pairs of light emitting diodes 200 are released can be improved like this, improve the utilization factor to the light that light emitting diode 200 is released, to improve the display effect of display device 1.
Alternatively, the inwall of guide lighting channel 310 can plated film.Plated film can be utilized like this to reflect the light that light emitting diode 200 is released, the reflecting effect of the light that further raising guide lighting channel 310 pairs of light emitting diodes 200 are released, further raising to the utilization factor of the light that light emitting diode 200 is released, to improve the display effect of display device 1 further.
Fig. 1 and Fig. 2 shows the display device 1 for household electrical appliance according to the present invention's specific embodiment.As depicted in figs. 1 and 2, the distance (shown in a as in Figure 1 and Figure 2) between circuit board 100 and display panel 400 can be 5 millimeters-15 millimeters.The guide lighting channel 310 of minimum length can be utilized thus fully to be reflected by the light that light emitting diode 200 sends, can so that the control of cost while ensureing the display effect of display device 1.
Particularly, as depicted in figs. 1 and 2, the diameter (shown in b as in Figure 1 and Figure 2) of the xsect of one end of the contiguous display panel 400 of guide lighting channel 310 can be 2 millimeters-5 millimeters.Can ensure so to be all incident upon on display panel 400 by the directional light of the inwall of guide lighting channel 310 reflection, and be convenient to the control of the size to guide lighting channel 310.
According to the display device 1 for household electrical appliance of the embodiment of the present invention other form and operation be all known for those of ordinary skills, be not described in detail here.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature immediately below second feature and tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this instructions, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.In addition, the different embodiment described in this instructions or example can carry out engaging and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (10)
1. for a display device for household electrical appliance, it is characterized in that, comprising:
Circuit board;
Light emitting diode, described light emitting diode is located on described circuit board;
Guide-lighting cavity, described guide-lighting cavity to be located on described circuit board and to have guide lighting channel in described guide-lighting cavity, described light emitting diode is located in described guide lighting channel, the axial cross section of the inwall of described guide-lighting cavity is hyperbolic curve or para-curve, and described light emitting diode is positioned at described hyperbolic curve or described parabolical focus place;
Display panel, described display panel to be located on described guide-lighting cavity and guide lighting channel described in capping.
2. the display device for household electrical appliance according to claim 1, is characterized in that, also comprises lamp mirror paster, and described lamp mirror paster to be located between described guide-lighting cavity and described display panel and guide lighting channel described in capping.
3. the display device for household electrical appliance according to claim 1, is characterized in that, described guide lighting channel comprises:
Guide-lighting section, the contiguous described display panel of described guide-lighting section arranges and the axial cross section of the inwall of described guide-lighting section is described hyperbolic curve or described para-curve;
Positioning section, described positioning section is connected with described guide-lighting section and contiguous described circuit board is arranged, and described light emitting diode is located in described positioning section.
4. the display device for household electrical appliance according to claim 3, is characterized in that, described light emitting diode is SMD light emitting diode.
5. the display device for household electrical appliance according to claim 4, is characterized in that, the xsect of described paster type light emitting type is circular, and the inwall of described positioning section is parallel with the periphery wall of described light emitting diode.
6. the display device for household electrical appliance according to claim 1, is characterized in that, the roughness of the inwall of described guide lighting channel is minute surface level.
7. the display device for household electrical appliance according to claim 6, is characterized in that, the inwall plated film of described guide lighting channel.
8. the display device for household electrical appliance according to claim 1, is characterized in that, described circuit board is printed circuit board (PCB).
9. the display device for household electrical appliance according to any one of claim 1-8, is characterized in that, the distance between described circuit board and described display panel is 5 millimeters-15 millimeters.
10. the display device for household electrical appliance according to claim 9, is characterized in that, the diameter of the xsect of one end of the described display panel of vicinity of described guide lighting channel is 2 millimeters-5 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410337391.6A CN105303982A (en) | 2014-07-15 | 2014-07-15 | Display device for household appliances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410337391.6A CN105303982A (en) | 2014-07-15 | 2014-07-15 | Display device for household appliances |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105303982A true CN105303982A (en) | 2016-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410337391.6A Pending CN105303982A (en) | 2014-07-15 | 2014-07-15 | Display device for household appliances |
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| Country | Link |
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| CN (1) | CN105303982A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895614A (en) * | 2018-09-12 | 2018-11-27 | 珠海格力电器股份有限公司 | Display device and air conditioner with it |
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| CN202615726U (en) * | 2012-04-28 | 2012-12-19 | 美的集团有限公司 | Display device of household appliance |
| CN202852460U (en) * | 2012-02-24 | 2013-04-03 | 何晨慧 | Pressing plate reflective bowl fixing type LED lamp structure |
| CN202948969U (en) * | 2012-11-09 | 2013-05-22 | 广东工业大学 | Light-emitting diode (LED) isolation and packaging device |
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2014
- 2014-07-15 CN CN201410337391.6A patent/CN105303982A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2570601Y (en) * | 2002-08-23 | 2003-09-03 | 北京联发中拓科技发展有限公司 | High-parallel light rays diode lighting arrangement |
| JP2005038822A (en) * | 2003-06-26 | 2005-02-10 | Sharp Corp | Lighting device for flat panel display and light-emitting lamp |
| US20050195339A1 (en) * | 2004-02-05 | 2005-09-08 | Nec Corporation | Light source device emitting light in rectangular shape |
| CN201793954U (en) * | 2009-09-10 | 2011-04-13 | 松下电器产业株式会社 | Drum type washing machine |
| CN201765780U (en) * | 2010-08-06 | 2011-03-16 | 葛瑞柱 | LED sign lamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108895614A (en) * | 2018-09-12 | 2018-11-27 | 珠海格力电器股份有限公司 | Display device and air conditioner with it |
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Application publication date: 20160203 |