CN101354494B - Electronic device - Google Patents
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- CN101354494B CN101354494B CN2007101380065A CN200710138006A CN101354494B CN 101354494 B CN101354494 B CN 101354494B CN 2007101380065 A CN2007101380065 A CN 2007101380065A CN 200710138006 A CN200710138006 A CN 200710138006A CN 101354494 B CN101354494 B CN 101354494B
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Abstract
The invention relates to an electronic device, comprising a shell, a display panel and a backlight module. The shell is provided with at least an opening; the display panel is arranged on the shell and used for displaying; the backlight module is arranged inside the shell and used as the light source of the display panel; the backlight module is provided with at least a lumination component, a light guide plate and at least a light pipe, wherein, the light guide plate leads the light beam emitted by the lumination component to be guided into the display panel; the light pipe is provided with an optical input terminal and an optical output terminal; the optical input terminal is arranged at the opening of the shell so as to be exposed in the air; and the optical output terminal is arranged at the side edge of the light guide plate so as to lead the light pipe to guide the external environmental light to the light guide plate.
Description
Technical field
The present invention is about a kind of electronic installation, especially in regard to a kind of electronic installation that utilizes external ambient light to be used as light source.
Background technology
Liquid crystal indicator is made up of display panels and backlight module, because liquid crystal itself can be not luminous, therefore provides display panels required light source by backlight module, so can show image.
As shown in Figure 1, a known liquid crystal indicator 1 comprises a housing 11, a light guide plate 12, a luminescence component 13, multi-disc blooming piece 14 and a display panels 15, and wherein light guide plate 12 is used as backlight module usefulness with luminescence component 13.
In this, housing 11 is made up of a loam cake 111 and a lower cover 112, and light guide plate 12, luminescence component 13, blooming piece 14 and display panels 15 are to be assembled in the housing 11.Light-emitting component 13 is sides that are arranged at light guide plate 12, and luminescence component 13 can be a cold-cathode fluorescence lamp.In addition, 14 of blooming pieces are repeatedly to place on the light guide plate 12, and these blooming pieces 14 can comprise diffusion sheet and blast sheet etc.
In this structural design, the effect of light guide plate 12 is to guide the scattering direction of luminescence component 13, improving the briliancy of backlight module, and guarantees the homogeneity of backlight module brightness, and blooming piece 14 can make light that light guide plate 12 derives more evenly with bright.
Yet, when the user uses liquid crystal indicator 1 in the sun, be easy to generate the problem of panel luminance deficiency, and the puzzlement that causes the user to use.In addition, if overcome this problem, then can produce another too many problem of power consumption again in the mode of strengthening luminescence component 13 brightness.
Therefore, how the problem at above-mentioned existence provides a kind of electronic installation that can increase ambient light as light source, is an important problem in fact.
Because the defective that above-mentioned existing liquid crystal indicator exists, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of founding a kind of electronic installation of new structure, can improve general existing liquid crystal indicator, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
The objective of the invention is to, overcome the defective that existing liquid crystal indicator exists, and a kind of electronic installation of new structure, technical matters to be solved are provided is it can be increased utilize ambient light (outside surround lighting) as light source, thereby is suitable for practicality more.
The object of the invention to solve the technical problems realizes by the following technical solutions.According to a kind of electronic installation that the present invention proposes, it comprises: a housing has at least one perforate; One display panel is arranged at above-mentioned housing in order to show; An and backlight module, be arranged in the above-mentioned housing with light source as above-mentioned display panel, above-mentioned backlight module has at least one luminescence component, one light guide plate and at least one light pipe, wherein, the ray guidance that above-mentioned light guide plate is launched above-mentioned luminescence component is to above-mentioned display panel, above-mentioned light pipe has a light input end and a light output end, above-mentioned light input end is arranged at the above-mentioned perforate of above-mentioned housing with outside being exposed to, above-mentioned light output end is positioned at the side of above-mentioned light guide plate, makes the outside surround lighting of above-mentioned light pipe guiding to above-mentioned light guide plate.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid electronic installation, wherein said luminescence component is arranged at the side of above-mentioned light guide plate, and above-mentioned light guide plate is converted to planar light with the light that above-mentioned luminescence component penetrates.
Aforesaid electronic installation, wherein said light guide plate is converted to planar light with the surround lighting of above-mentioned light pipe guiding.
Aforesaid electronic installation, the above-mentioned above-mentioned light guide plate of light output end contact of wherein said light pipe.
Aforesaid electronic installation, wherein said light pipe have a bending tube and two straight tubes, and above-mentioned straight tube extends out from the two ends of above-mentioned bending tube, and the above-mentioned tail end opening that waits straight tube is respectively as above-mentioned light input end and above-mentioned light output end.
Aforesaid electronic installation wherein saidly also comprises: a photoelectricity sensing circuit, and the light intensity of the electronic installation environment of living in that sensing is above-mentioned is to produce a sensing result; And a control circuit, be coupled to above-mentioned photoelectricity sensing circuit, and judge the light intensity of above-mentioned electronic installation environment of living in, to control the luminous intensity of above-mentioned luminescence component according to above-mentioned sensing result.
Aforesaid electronic installation, when the light intensity of the above-mentioned electronic installation environment of living in of above-mentioned control circuit judgement was enough, the above-mentioned above-mentioned luminescence component of control circuit control extinguished.
Aforesaid electronic installation, when above-mentioned control circuit was judged the light intensity deficiency of above-mentioned electronic installation environment of living in, it is luminous that above-mentioned control circuit is controlled above-mentioned luminescence component.
Aforesaid electronic installation, it also comprises: a photoelectricity sensing circuit, the brightness of the display panel that sensing is above-mentioned is to produce a sensing result; And a control circuit, be coupled to above-mentioned photoelectricity sensing circuit, and judge the brightness of above-mentioned display panel according to above-mentioned sensing result, luminous to control above-mentioned luminescence component.
Aforesaid electronic installation, when above-mentioned control circuit was judged the luminance shortage of above-mentioned display panel, it is luminous that above-mentioned control circuit is controlled above-mentioned luminescence component.
Aforesaid electronic installation, wherein said luminescence component are a light emitting diode or a cold-cathode fluorescence lamp.
Aforesaid electronic installation, wherein said backlight module have a plurality of above-mentioned luminescence components and a plurality of above-mentioned light pipe, and each light pipe and each luminescence component are to be crisscross arranged.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, major technique of the present invention thes contents are as follows:
Comprise a housing, a display panel and a backlight module according to an electronic installation of the present invention.Housing has at least one perforate, and display panel is arranged at housing, and it is interior with the light source as above-mentioned display panel that backlight module is arranged at housing, and backlight module has at least one luminescence component, a light guide plate and at least one light pipe.Wherein light guide plate ray guidance that luminescence component is launched is to display panel, light pipe has a light input end and a light output end, light input end is arranged at the perforate of housing with outside being exposed to, light output end is positioned at the side of light guide plate, in order to do making the outside surround lighting of light pipe guiding to light guide plate.
By technique scheme, electronic installation of the present invention has following advantage at least:
In electronic installation of the present invention, ambient light can be incident upon light guide plate via light pipe, and therefore, ambient light and luminescence component all can be used as the light source of backlight module, and ambient light can be used as main light source or secondary light source according to actual conditions.Therefore backlight module can have two light sources (ambient light and luminescence component), can ambient light when using usually as main light source, when the brightness of display panel is not enough, can opens luminescence component again and promote brightness.
Owing to the light pipe in the electronic installation of the present invention passes outside housing is exposed to, make that ambient light is able to inject from light input end, and penetrate to light guide plate therefore have power saving and prolong advantages such as electronic installation life-span from light output end.In addition, because ambient light can be used as light source, so heal when strong when the ambient light line strength, the luminous intensity of backlight module is also stronger, just can solve in the known technology problem of display panel luminance shortage in the sun.
In sum, it has above-mentioned many advantages and practical value electronic installation of the present invention, and in like product, do not see have similar structural design to publish or use and really genus innovation, no matter it all has bigger improvement on product structure or function, have large improvement technically, and produced handy and practical effect, thereby be suitable for practicality more.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of instructions, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is a synoptic diagram of known liquid crystal indicator.
Fig. 2 is the combination synoptic diagram according to the electronic installation of preferred embodiment of the present invention.
Fig. 3 is a part of decomposing schematic representation of the electronic installation of Fig. 2.
Fig. 4 is the block diagram according to the electronic installation of preferred embodiment of the present invention.
Fig. 5 is the block diagram according to the electronic installation of another preferred embodiment of the present invention.
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to its embodiment of electronic installation, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
As Fig. 2 and shown in Figure 3, preferred embodiment of the present invention provides a kind of electronic installation 2 to comprise a housing 21, a display panel 22 and a backlight module 23.
Wherein, housing 21 is made up of a loam cake 211 and a lower cover 212, and loam cake 211 has an opening 213 and at least one perforate 214.In addition, display panel 22 is to be arranged at housing 21 in order to show, is to be arranged in the housing 21 with the light source as display panel 22 with backlight module 23.And display panel 22 positions are in the position of adjacent openings 213, and backlight module 23 is arranged at the below of display panel 22.
In present embodiment, display panel 22 can be a display panels, and the aspect of display panels can be penetration, reflective or semi-penetrating trans or the like.
Please refer to Fig. 3 again, the backlight module 23 of present embodiment has at least one luminescence component 231, a light guide plate 232 and at least one light pipe 234.Below be that to have a plurality of luminescence components 231 with backlight module 23 be that example describes with a plurality of light pipes 234.
In the present embodiment, luminescence component 231 can be light emitting diode or cold-cathode fluorescence lamp.For the application of small size display device, then be to be preferable selection as luminescence component 231 with light emitting diode.
In addition, the luminescence component 231 of present embodiment is a side 233 that is arranged at light guide plate 232, and light guide plate 232 can be converted to planar light with the light that luminescence component 231 is launched and be directed to display panel 22.
In the present embodiment, light guide plate 232 is the significant components that influence optical efficiency, and it can be made by ejection formation, and in this, light guide plate 232 is wedge shape plates.The major function of light guide plate 232 is the directing light direction, and is even to improve the light briliancy and to control brightness.
The luminescence component 231 and the light pipe 234 of present embodiment all are positioned at side 233, so the light that penetrates from luminescence component 231 and light pipe 234 enters the light guide plate 232 from the end face of side 233, the micro structured pattern design that utilize density in the light guide plate 232 afterwards, varies in size can make light directive display panel 22 equably.In addition, also a reflecting plate (not shown) can be positioned over the bottom of light guide plate 232,, thereby can prevent that light from leaking outside and increase the service efficiency of light so that will be in the light reflected back light guide plate 232 that light guide plate 232 bottom surfaces spill.
In addition, please refer to Fig. 3 again, the light pipe 234 of present embodiment has a bending tube 235 and two straight tubes 236,237, and straight tube 236,237 two ends from bending tube 235 extend out, and the tail end opening of straight tube 236,237 is respectively as a light input end 238 and a light output end 239.
Wherein, light input end 238 passes the perforate 214 of housing 21 and outside being exposed to, and light output end 239 is positioned at the side 233 of light guide plate 232, makes light pipe 234 can guide ambient light to light guide plate 232.In this, the light output end 239 contact light guide plate 232 of light pipe 234.
In the present embodiment, light guide plate 232 can be converted to planar light with the light that light output end 239 penetrates, so ambient light just can be used as the light source of backlight module 23.
The light pipe 234 of present embodiment can be a leaded light post, and ambient light is injected behind the leaded light post just in the inner total reflection of leaded light post from light input end 238, but thereby the light of injecting just the orientation column direction of principal axis advance, finally just can penetrate at light output end 239.
In addition, please refer to Fig. 3 again, the electronic installation 2 of present embodiment more comprises multi-disc blooming piece 24, and 24 of blooming pieces are repeatedly to place between light guide plate 232 and the display panel 22.In the present embodiment, blooming piece 24 comprises diffusion sheet and brightness enhancement film or the like, and the light of being derived by light guide plate 232 can more evenly and be become clear.
In addition, please refer to Fig. 3 again, the light output end 239 of light pipe 234 can be between each luminescence component 231, and each light pipe 234 is to be crisscross arranged with each luminescence component 231, make the light that is incident upon light guide plate 232 can be even, thereby the light that light guide plate 232 derives be also more even.
Moreover the electronic installation 2 of present embodiment can be the electronic installation that LCD, individual action digital assistants, mobile phone, GPS, handheld device or other kind have Presentation Function.
Hold, by the design of this preferred embodiment, ambient light and luminescence component 231 all can be used as the light source of backlight module 23.
In addition, as shown in Figure 4, electronic installation 2 more comprises a control circuit 25 and a photoelectricity sensing circuit 26 that couples mutually, but the light intensity of photoelectricity sensing circuit 26 sensing electronic installations 2 environment of living in also produces a sensing result, and control circuit 25 can be judged the light intensity of electronic installation 2 environment of living in according to sensing result, and then the luminous intensity of control luminescence component 231.
Particularly, when control circuit 25 judges that the intensity of light of electronic installations 2 environment of living in is enough, for example say so in the sun or bright indoor, control circuit 25 may command luminescence components 231 extinguish.At this moment, the light of environment is injected via the light input end 238 (please refer to Fig. 3) of light pipe 234, and penetrate to light guide plate 232 from light output end 239 (please refer to Fig. 3), backlight module 23 can only utilize ambient light (ambient light) as light source, and it is luminous to need not luminescence component 231, thereby can save electric power.On the other hand, when control circuit 25 judges that the undercapacity of light of electronic installations 2 environment of living in is enough, for example be indoor, control circuit 25 may command luminescence components 231 are luminous, and also promptly this moment, backlight module 23 was as light source with ambient light and luminescence component 231.That is to say that backlight module 23 can ambient light be main light source, and be that secondary light source is to remedy the need of luminance shortage with luminescence component 231.
In addition, as shown in Figure 5, in another embodiment of the present invention, but the brightness of photoelectricity sensing circuit 26 sensing display panels 22 and produce another sensing result, and control circuit 25 can judge that the brightness of display panel 22 is luminous with control luminescence component 231 according to this another sensing result.When control circuit 25 was judged the luminance shortage of display panels 22, control circuit 25 control luminescence components 231 are luminous to promote brightness.
In sum, backlight module 23 of the present invention has two light sources (from the ambient light and the luminescence component of light pipe input), can ambient light when using usually as main light source, when the luminance shortage of display panel is enough, can opens luminescence component again and promote brightness.
Compared to the prior art, light pipe passes housing and outside being exposed in the electronic installation of the present invention, make that ambient light is able to be incident upon within the backlight module from light input end, and penetrate to light guide plate, so ambient light just can be used as the light source of backlight module from light output end.In addition, because ambient light can be used as light source, so heal when strong when the ambient light line strength, the luminous intensity of backlight module is also stronger, just can solve in the known technology problem of display panel luminance shortage in the sun.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (12)
1. electronic installation is characterized in that comprising:
One housing has at least one perforate;
One display panel is arranged at above-mentioned housing in order to show; And
One backlight module is arranged in the above-mentioned housing with the light source as above-mentioned display panel, and above-mentioned backlight module has at least one luminescence component, a light guide plate and at least one light pipe, wherein,
The ray guidance that above-mentioned light guide plate is launched above-mentioned luminescence component is to above-mentioned display panel,
Above-mentioned light pipe has a light input end and a light output end,
Above-mentioned light input end is arranged at the above-mentioned perforate of above-mentioned housing with outside being exposed to,
Above-mentioned light output end is positioned at the side of above-mentioned light guide plate, makes the outside surround lighting of above-mentioned light pipe guiding to above-mentioned light guide plate.
2. electronic installation according to claim 1 is characterized in that wherein above-mentioned luminescence component is arranged at the side of above-mentioned light guide plate, and above-mentioned light guide plate is converted to planar light with the light that above-mentioned luminescence component penetrates.
3. electronic installation according to claim 1 is characterized in that wherein above-mentioned light guide plate is converted to planar light with the surround lighting of above-mentioned light pipe guiding.
4. electronic installation according to claim 1 is characterized in that the above-mentioned light output end of wherein above-mentioned light pipe contacts above-mentioned light guide plate.
5. electronic installation according to claim 1, it is characterized in that wherein above-mentioned light pipe has a bending tube and two straight tubes, above-mentioned straight tube extends out from the two ends of above-mentioned bending tube, and the tail end opening of above-mentioned these straight tubes is respectively as above-mentioned light input end and above-mentioned light output end.
6. electronic installation according to claim 1 is characterized in that more comprising:
One photoelectricity sensing circuit, the light intensity of the electronic installation environment of living in that sensing is above-mentioned is to produce a sensing result; And
One control circuit is coupled to above-mentioned photoelectricity sensing circuit, and judges the light intensity of above-mentioned electronic installation environment of living in according to above-mentioned sensing result, to control the luminous intensity of above-mentioned luminescence component.
7. electronic installation according to claim 6 is characterized in that wherein the above-mentioned above-mentioned luminescence component of control circuit control extinguishes when above-mentioned control circuit judges that the light intensity of above-mentioned electronic installation environment of living in is enough.
8. electronic installation according to claim 6 is characterized in that wherein when above-mentioned control circuit judges that the light intensity of above-mentioned electronic installation environment of living in is not enough, and the above-mentioned luminescence component of above-mentioned control circuit control is luminous.
9. electronic installation according to claim 1 is characterized in that more comprising:
One photoelectricity sensing circuit, the brightness of the display panel that sensing is above-mentioned is to produce a sensing result; And
One control circuit is coupled to above-mentioned photoelectricity sensing circuit, and judges the brightness of above-mentioned display panel according to above-mentioned sensing result, and is luminous to control above-mentioned luminescence component.
10. electronic installation according to claim 9 is characterized in that wherein when above-mentioned control circuit is judged the luminance shortage of above-mentioned display panel, and the above-mentioned luminescence component of above-mentioned control circuit control is luminous.
11. electronic installation according to claim 1 is characterized in that wherein above-mentioned luminescence component is a light emitting diode or a cold-cathode fluorescence lamp.
12. electronic installation according to claim 1 is characterized in that wherein above-mentioned backlight module has a plurality of above-mentioned luminescence components and a plurality of above-mentioned light pipe, each light pipe and each luminescence component are to be crisscross arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101380065A CN101354494B (en) | 2007-07-26 | 2007-07-26 | Electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101380065A CN101354494B (en) | 2007-07-26 | 2007-07-26 | Electronic device |
Publications (2)
| Publication Number | Publication Date |
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| CN101354494A CN101354494A (en) | 2009-01-28 |
| CN101354494B true CN101354494B (en) | 2010-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007101380065A Active CN101354494B (en) | 2007-07-26 | 2007-07-26 | Electronic device |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101876753B (en) * | 2010-06-03 | 2012-06-27 | 香港应用科技研究院有限公司 | Mixed illumination system of head-up display |
| CN102063841B (en) * | 2010-11-11 | 2013-10-09 | 苏州茂立光电科技有限公司 | Display device |
| CN105093670B (en) * | 2014-05-23 | 2018-07-03 | 联想(北京)有限公司 | Terminal device |
| CN108398832B (en) * | 2018-03-27 | 2020-11-06 | 成都京东方光电科技有限公司 | Display device |
| CN111077691A (en) * | 2018-10-18 | 2020-04-28 | 徐瑞宏 | LCD display device and light guiding method thereof |
| CN112946955A (en) * | 2021-02-24 | 2021-06-11 | 深圳市朝华彩晶科技有限公司 | Display screen with side light feeding to increase screen brightness |
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| CN1940666A (en) * | 2005-09-30 | 2007-04-04 | 鸿富锦精密工业（深圳）有限公司 | Negative-light mould set and liquid-crystal display device therewith |
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| CN2619292Y (en) * | 2003-02-19 | 2004-06-02 | 天瀚科技股份有限公司 | Package structure of display module with electromagnetic induction module |
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| CN101354494A (en) | 2009-01-28 |
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