CN101471974A - Portable electronic device with screen and key-press sharing backlight light source - Google Patents
Portable electronic device with screen and key-press sharing backlight light source Download PDFInfo
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- CN101471974A CN101471974A CNA2007103056263A CN200710305626A CN101471974A CN 101471974 A CN101471974 A CN 101471974A CN A2007103056263 A CNA2007103056263 A CN A2007103056263A CN 200710305626 A CN200710305626 A CN 200710305626A CN 101471974 A CN101471974 A CN 101471974A
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- guide plate
- light guide
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- key
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Abstract
The invention relates to a portable electronic device with a backlight source commonly used by a screen and a key. A display module and a key module are arranged in the portable electronic device; a display device, a first light guide plate and a light source part are arranged in the display module; a non-light tight key device and a second light guide plate are arranged in the key module, wherein the display module and the key device are adjacent to the surface of the portable electronic device; and the light source part is arranged in the display module adjacent to the key module and is respectively connected with the first light guide plate and the edge of the second light guide plate. Therefore, reflecting light beams sent out by the light source part can respectively pass through the first light guide plate and the second light guide plate and are transferred to the display module and the key module, so as to respectively provide the backlight source for the display device and the key device.
Description
Technical field
The invention relates to a kind of portable electron device, and particularly relevant for the portable electron device of a kind of screen and key-press sharing backlight light source.
Background technology
Flourish along with the semiconductor science and technology and the network communications technology in recent years, various portable electron device, as: personal digital aid (PDA) (Personal Digital Assistance, be called for short PDA) and mobile phone etc., not only stride forward towards the big step of compact market trend, the idea of its power and energy saving also little by little shows in the portable electron device design, to satisfy the popular demand of consumption.
Generally speaking, Liquid Crystal Module in the portable electron device (LCD Module, LCM) can ejection formation ground and between button dispose one in order to stop, the device that is in the light of shield lights function, make unlikely the influencing each other of the light that back light sent of back light and keyboard of Liquid Crystal Module.Because the brightness that light source sent of Liquid Crystal Module is quite high, the former zone that penetrates into keyboard in order to the light source that prevents Liquid Crystal Module that means of the design of the device that is in the light, and disturb the luminous of keyboard.
Yet device stops fully because the light that back light sent of Liquid Crystal Module is difficult for being in the light, and the light source that adds upper keyboard does not need too strong, only reaches the demand that letter symbol on the display keyboard in the dark can satisfy the user.Therefore, a kind ofly utilize the Liquid Crystal Module light source to hold concurrently to be the portable electron device of the back light of keyboard if can design, with the waste that realizes saving the cost of portable electron device and avoid the space, also reducing the power consumption of the back light of portable electron device use, is relevant dealer's problem demanding prompt solution.
Summary of the invention
The objective of the invention is to be to provide the portable electron device of a kind of screen and key-press sharing backlight light source, reduce the quantity of the back light in the portable electron device, with the waste in the space of the back light device that reduces back light device cost, configuration, and the power consumption that reduces the back light that portable electron device uses.
According to above-mentioned purpose, the invention provides the portable electron device of a kind of screen and key-press sharing backlight light source, portable electron device comprises a body, display module and a key-press module, display module configuration is in body, comprise a display device, light source portion and first light guide plate, and display device partly is emerging in body surface, light source portion can produce reflection ray, and first light guide plate be positioned at the side of display device away from body surface, and the one edge is connected in a side of light source portion, in order to receive and to conduct reflection ray to display device.
And key-press module is disposed in the body and near the opposite side of light source portion, comprise the button device and second light guide plate, the button device is arranged in the key-press module and near the position on key-press module surface, and second light guide plate is positioned at the side of button device away from the key-press module surface, similarly, one edge of second light guide plate is connected in the opposite side of light source portion, and second light guide plate receives and conducts reflection ray to the button device.So, the reflection ray that light source portion is sent just can pass through first light guide plate and second light guide plate respectively, and is passed to display module and key-press module, to provide back light to display device and button device respectively.
In sum, by the above-mentioned portable electron device of the present invention, make that the required back light of display button figure can be provided by the back light of Liquid Crystal Module in the past, to reduce the back light device cost of portable electron device, help the design of dwindling portable electron device, both meet consumer's expectation, also can improve the market competitiveness.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
For above-mentioned and other purposes of the present invention, feature, advantage and embodiment can be become apparent, appended accompanying drawing is described in detail as follows:
Fig. 1 is the schematic appearance of the portable electron device in the embodiment of the invention;
Fig. 2 is the fragment cross section of Fig. 1 and the schematic diagram that reflection ray moves.
Wherein, Reference numeral
1: body 151: reflection room
10: display module 153: luminescent device
11: display device 155: reflector plate
111: display screen 30: key-press module
13: backlight assembly 31: the button device
131: reflecting plate 311: press surface
32: the second light guide plate of 132: the first light guide plate
133: 51: the first reflection rays of diffusion sheet
134: 52: the second reflection rays of brightness enhancement film
15: light source portion
Embodiment
The portable electron device of a kind of screen disclosed by the invention and key-press sharing backlight light source, in the one preferred embodiment, see also Fig. 1, shown in Figure 2, Fig. 1 is the schematic appearance of the portable electron device in the embodiment of the invention, and Fig. 2 is the fragment cross section of Fig. 1 and the schematic diagram that reflection ray moves.Portable electron device has to hold in a body 1 space is set, hold and the space is set holds at least and be provided with a display module 10 and a key-press module 30 2 partly, be provided with a display device 11 (as: LCD panel) and a backlight assembly 13 in the display module 10, display device 11 is located at a side of backlight assembly 13, and partly be revealed in the surface of body 1 with a display screen 111, display device 11 is mainly by colored filter, drive IC, compensate film and Polarizer, glass substrate, the ITO film, alignment film, spare parts such as control circuit are formed, because display device 11 is a known technology, no longer given unnecessary details at this, also be not presented among Fig. 2.
Please consult shown in Figure 2 again, backlight assembly 13 comprises a light source portion 15, one reflecting plate 131 (Reflector), one first light guide plate 132 (Light guide plate), one diffusion sheet 133 (Diffusionsheet), one brightness enhancement film 134 assemblies such as (Brightness enhancement film), first light guide plate 132 is located at a side of reflecting plate 131, and be positioned at the side of display device 11 away from body 1 surface, and diffusion sheet 133 is located at the side of first light guide plate 132 away from reflecting plate 131, and brightness enhancement film 134 is attached to the side of diffusion sheet 133 away from first light guide plate 132, wherein the external form of first light guide plate 132 has certain thickness, and can be wedge shape and planar shaped, and material (as: acryl PMMA) the tool high reflectance and the characteristic of extinction not, can receive a reflection ray by the one lateral edges, and make its reflection ray in first light guide plate 132, be conducted to the direction of first light guide plate, 132 opposite sides, light guide plate 132 integral body of winning can be emitted beam to display device 11, with the brilliant degree of raising display device 11 and the consistency of uniform luminance.
And key-press module 30 is configured in the body 1, and contiguous display module 10 is provided with the opposite side position of light source portion 15, be provided with a button device 31 and one second light guide plate 32 in it, button device 31 can be the pad of a tool light transmission, be arranged in the key-press module 30 and near the surface of key-press module 30, have many press surfaces 311 on it, when each press surface 311 is provided back light, can be on body 1 display brightness, and second light guide plate 32 is located at the surface of button device 31 away from key-press module 30, its feature, external form and material and first light guide plate 132 are similar, all has certain thickness in external form, and can be wedge shape and planar shaped, and material (as: acryl PMMA) the tool high reflectance and the characteristic of extinction not, and receive reflection ray with second light guide plate, 32 1 lateral edges, and make reflection ray in second light guide plate 32, be led to the direction of second light guide plate, 32 opposite sides, to provide button device 31 certain brightness.
Wherein the material of button device 31 can be transparent rubber, plastic cement or resin etc., and in above-mentioned sizing material, add many chemical particles that refractive index is different during fabrication, as scattering particles, so when light through button device 31 time, light can be constantly passes in the different particle of two refractive indexes, meanwhile the phenomenon of many refractions, reflection and scattering can take place in light, has so just caused the effect of optics diffusion.
And light source portion 15 can be sent reflection ray, be located at a side of close key-press module 30 in the display module 10, and contact a lateral edges of first light guide plate 132 and second light guide plate 32 respectively, so, the reflection ray that light source portion 15 is sent just can pass through a lateral edges of first light guide plate 132 and second light guide plate 32 respectively, and be passed to display module 10 and key-press module 30, to provide lighting source to display device 11 and button device 31 respectively.
In the embodiments of the invention, please consult shown in Figure 2 again, light source portion 15 comprises a reflection room 151, a plurality of luminescent devices 153 and at least one reflector plate 155, luminescent device 153 is not limited to cold cathode fluorescent tube (Cathode Cold Fluorescent Lamp, CCFL), thermic cathode fluorimetric (Cathode Hot FluorescentLamp, HCFL), electroluminescence sheet (Electro-luminescence, EL), light-emitting diode (LED), present embodiment is example with the vertically standing LED, the both sides of reflection room 151 (may be respective side or sides adjacent) partly open and connect the edge of first light guide plate 132 and second light guide plate 32 respectively, and all be covered with reflector plate 155 on the wall of reflection room 151, the light that makes each luminescent device 153 be sent to be reflected respectively this lateral edges of one first reflection ray, 51 to first light guide plate 132 and this lateral edges of one second reflection ray, 52 to second light guide plate 32, so, the light that each luminescent device 153 is sent in reflection room 151 sheet 155 that can be reflected constantly reflects, up to this lateral edges that reflexes to first light guide plate 132 or second light guide plate 32, to explain that light source portion 15 is in order to send the enforcement means of reflection ray.
So, portable electron device in use, each luminescent device 153 in the light source portion 15 just begins to emit beam, after reflector plate 155 reflections, just send first reflection ray, 51 to first light guide plate 132 simultaneously, and send second reflection ray, 52 to second light guide plate 32, at this moment, first reflection ray 51 is directed to other side by first light guide plate 132 at a lateral edges, simultaneously, first reflection ray 51 is also passed through to diffusion sheet 133 by first light guide plate 132, diffusion sheet 133 is spread first reflection ray 51, after making its uniform source of light that produces one side and wide rising angle, again first reflection ray 51 is reached brightness enhancement film 134, and brightness enhancement film 134 is just condensed first reflection ray 51, improve the front brightness value, increase the result of use after light self-diffusion plate penetrates, enable display device 11 and have enough back lights.In addition, when first reflection ray 51 by first light guide plate 132 when a lateral edges is directed to opposite side, first reflection ray 51 that reflecting plate 131 is spread out of first light guide plate 132 reflects back towards the direction of diffusion sheet 133.
When first reflection ray 51 is reflected onto first light guide plate 132, second reflection ray 52 also is reflected onto a lateral edges of second light guide plate 32, make second reflection ray 52 to be directed to its side in addition by a lateral edges of second light guide plate 32, make button device 31 integral body be illuminated, and make each press surface 311 show light by second reflection ray 52.
Though the present invention discloses as above with a preferred embodiment; right its is not in order to limit the present invention; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (6)
1. the portable electron device of screen and key-press sharing backlight light source is characterized in that this portable electron device comprises:
One body;
One display module is configured in this body, comprising:
One display device partly is emerging in this body surface;
One light source portion produces reflection ray; And
One first light guide plate is arranged in this body and is positioned at the side of this display device away from this body surface, and an edge of this first light guide plate is connected a side of this light source portion, receives and conducts this reflection ray to this display device; And
One key-press module is configured in this body and the opposite side of contiguous this light source portion, comprising:
One button device is arranged in this key-press module and near the surface of this key-press module;
One second light guide plate is positioned at the side of this button device away from this key-press module surface, and an edge of this second light guide plate is connected the opposite side of this light source portion, and this second light guide plate receives and conducts this reflection ray to this button device.
2. portable electron device according to claim 1 is characterized in that, this light source portion comprises:
One reflection room, the part of its both sides open and connect the edge of this first light guide plate and this second light guide plate respectively;
A plurality of vertically standing LEDs are located at respectively in this reflection room, in order to emit beam; And
At least one reflector plate pastes the wall at this reflection room respectively, and the light that reflects each this vertically standing LED respectively is to this first light guide plate and this second light guide plate.
3. portable electron device according to claim 2 is characterized in that, more comprises in this display module:
One reflecting plate is configured in the side of this first light guide plate away from this display device, reflects the light that this first light guide plate is sent;
One diffusion sheet is configured in the side of this first light guide plate away from this reflecting plate, spreads the light that this first light guide plate is sent; And
One brightness enhancement film is attached at the side of this diffusion sheet away from this first light guide plate, condenses the light that this diffusion sheet spreads.
4. portable electron device according to claim 3 is characterized in that the external form of this first light guide plate has certain thickness, its material tool high reflectance and the characteristic of extinction not.
5. portable electron device according to claim 1 is characterized in that, the material of this button device is transparent rubber, plastic cement or the resin with the different scattering particles of a plurality of refractive indexes.
6. portable electron device according to claim 2 is characterized in that the external form of this second light guide plate has certain thickness, its material tool high reflectance and the characteristic of extinction not.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007103056263A CN101471974A (en) | 2007-12-26 | 2007-12-26 | Portable electronic device with screen and key-press sharing backlight light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007103056263A CN101471974A (en) | 2007-12-26 | 2007-12-26 | Portable electronic device with screen and key-press sharing backlight light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101471974A true CN101471974A (en) | 2009-07-01 |
Family
ID=40829089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007103056263A Pending CN101471974A (en) | 2007-12-26 | 2007-12-26 | Portable electronic device with screen and key-press sharing backlight light source |
Country Status (1)
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|---|---|
| CN (1) | CN101471974A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338348A (en) * | 2010-07-21 | 2012-02-01 | 深圳富泰宏精密工业有限公司 | Light guide assembly |
| CN102681808A (en) * | 2011-03-15 | 2012-09-19 | 联想(北京)有限公司 | Display module, electronic equipment and display control method |
| CN102853376A (en) * | 2012-08-01 | 2013-01-02 | 惠州Tcl移动通信有限公司 | Light guide assembly of screen soft keyboard characters and touch screen cell phone |
| TWI407473B (en) * | 2010-08-25 | 2013-09-01 | Fih Hong Kong Ltd | Keypad module |
| CN104917865A (en) * | 2015-06-08 | 2015-09-16 | 武汉华星光电技术有限公司 | Mobile terminal and display screen thereof |
-
2007
- 2007-12-26 CN CNA2007103056263A patent/CN101471974A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338348A (en) * | 2010-07-21 | 2012-02-01 | 深圳富泰宏精密工业有限公司 | Light guide assembly |
| TWI407473B (en) * | 2010-08-25 | 2013-09-01 | Fih Hong Kong Ltd | Keypad module |
| CN102681808A (en) * | 2011-03-15 | 2012-09-19 | 联想(北京)有限公司 | Display module, electronic equipment and display control method |
| WO2012122928A1 (en) * | 2011-03-15 | 2012-09-20 | 联想(北京)有限公司 | Display module, electronic device, and display control method |
| US9196190B2 (en) | 2011-03-15 | 2015-11-24 | Lenovo (Beijing) Limited | Display module, electronic device and display control method |
| CN102681808B (en) * | 2011-03-15 | 2016-03-02 | 联想(北京)有限公司 | Display module, electronic equipment and display control method |
| CN102853376A (en) * | 2012-08-01 | 2013-01-02 | 惠州Tcl移动通信有限公司 | Light guide assembly of screen soft keyboard characters and touch screen cell phone |
| CN102853376B (en) * | 2012-08-01 | 2015-10-28 | 惠州Tcl移动通信有限公司 | A kind of leaded light component of screen soft keyboard character and touch-screen mobile phone |
| CN104917865A (en) * | 2015-06-08 | 2015-09-16 | 武汉华星光电技术有限公司 | Mobile terminal and display screen thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090701 |