CN201107423Y - Printed-type light conducting plate for electronic product press key light source - Google Patents
Printed-type light conducting plate for electronic product press key light source Download PDFInfo
- Publication number
- CN201107423Y CN201107423Y CNU2007201709063U CN200720170906U CN201107423Y CN 201107423 Y CN201107423 Y CN 201107423Y CN U2007201709063 U CNU2007201709063 U CN U2007201709063U CN 200720170906 U CN200720170906 U CN 200720170906U CN 201107423 Y CN201107423 Y CN 201107423Y
- Authority
- CN
- China
- Prior art keywords
- light guide
- led lamp
- light
- printing ink
- guide plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Push-Button Switches (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
The utility model relates to a printed light guide board for the light source of the button of an electronic product, which includes a light guide substrate arranged on the back of a button panel, one end edge of the light guide substrate faces a LED lamp, and a plurality of ink dots are printed on each light-emitting position on one side surface of the light guide substrate, which is reverse to the button panel. Preferably, on the light guide substrate, ink spots are distributed from sparse to dense from one end close to the LED lamp to the other end apart from the LED lamp. By printing the ink spots on each light-emitting position on the light guide substrate and utilizing the ink spots to refract the light in the light guide substrate to irradiate the back of the button, the button is illuminated; the printed light guide board has the advantages of simple structure, low cost and high efficiency; the intensity of the ink spots is gradually increased from near to far along with the distance from the LED lamp, the more the ink spots, the more the refracted light rays, so the weak brightness of light at the position far from the LED lamp, which is caused by light attenuation in the light guide substrate, can be compensated, so that the brightness of light on the whole button panel is uniform.
Description
Technical field
The utility model relates to a kind of light guide plate, is meant the printed form light guide plate that a kind of electronic product button light source is used especially.
Background technology
The inboard of electronic product (for example mobile phone, PDA, MP3/MP4 etc.) button often is equiped with light source illuminating button, so that the user still can find sign on the button when using at the dark place with correct selection key.At present, a kind of light source is to illuminate in the some LED lamp of button installed inside, yet this to illuminate the mode structure comparatively complicated, and distribution of light is inhomogeneous, and is brighter from the zone that the LED lamp is near, and darker from LED lamp zone far away, is unfavorable for using.Another kind of light source is in the back side of button installing one deck light guide base plate, at an end of light guide base plate the LED lamp is housed.The LED lamp is luminous, guides to the button back side by light guide base plate and illuminates, and then, there is the uneven defective of distribution of light equally in this mode that illuminates.
The utility model content
Technical problem to be solved in the utility model is: the printed form light guide plate that provides a kind of electronic product button light source to use, its cost is low, and the light guide effect height.
The further technical matters to be solved of the utility model is: the printed form light guide plate that provides a kind of electronic product button light source to use, its distribution of light of shining on key panel is even.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: the printed form light guide plate that provides a kind of electronic product button light source to use, comprise for the light guide base plate of being located at the key panel back side, light guide base plate one ora terminalis is over against the LED lamp, and a side surface that deviates from key panel in light guide base plate needs the luminous position place to be printed with some printing ink site at each.
Preferably, on the described light guide base plate from by LED lamp one end to away from LED lamp one end by rare to thickly distributing the printing ink site.
Preferably, described printing ink site is the printing ink site that is added with color pigment or Chinese white.
Preferably, described light guide plate is a color light guide plate, and the printing ink site transparence or colored translucent that is white in color.
Preferably, described LED lamp is color LED lamp or white LED lamp.
Preferably, described light guide base plate is polyurethane substrate or silicon fiml substrate.
Preferably, some printing ink site of described printing is point type or linear distribution or constitutes the literal shape.
The beneficial effects of the utility model are: the utility model is by each needs the printing of luminous position place to form the printing ink site on light guide base plate, can the light refraction in the light guide base plate be come out to shine in the button back side by the printing ink site, thereby illuminate button, it is simple in structure, and cost is low, the efficient height; The density of printing ink site can be determined according to required light luminance; Also can design the density of printing ink site according to the printing ink site recently with respect to the distance of LED lamp, near more from the LED lamp, the printing ink dot density is more little, and far away more from the LED lamp, the printing ink dot density is big more, and the printing ink site is many more, the light of refraction is many more, after adopting design like this,, whole key panel light luminance is evenly distributed by reflecting more rays though the light attenuation in the light guide base plate is feasible low slightly away from LED lamp place light luminance.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Description of drawings
Fig. 1 is the synoptic diagram of the printed form light guide plate used of the utility model electronic product button light source.
Fig. 2 is that printed form light guide plate that the utility model electronic product button light source is used is mounted to the synoptic diagram on the key panel.
Fig. 3 is a light guide plate refracted ray synoptic diagram.
Embodiment
As shown in Figure 1 to Figure 3, the printed form light guide plate that the utility model provides a kind of electronic product button light source to use, comprise that described light guide base plate 4 can adopt the material of leaded light excellent performances such as polyurethane substrate or silicon fiml substrate for the light guide base plate 4 of being located at key panel 7 back sides.Light guide base plate 1 one ora terminalis are over against LED lamp 2, a side surface that deviates from key panel 7 in light guide base plate 1 needs the luminous position place to be printed with some printing ink site 6 at each, usually adopt the mode of serigraphy, and need luminous position normally corresponding to the position of each button on the key panel 7, like this, when the light that the LED lamp sends is transmitted to the position of printing ink site 6 through light guide base plate 4, promptly can reflect, a side that is not provided with printing ink site 6 towards light guide base plate 4 is penetrated, as shown in Figure 3.Consider that light has decay to a certain degree in light guide base plate 4, for guaranteeing that key panel 7 light intensity everywhere evenly distributes, and the distribution density of printing ink site 6 is designed to lean on LED lamp 2 one ends to extremely thickly being distributed by rare away from LED lamp 2 one ends from described light guide base plate 4, like this, though it is low slightly away from LED lamp 2 place's light luminances that the light attenuation in the light guide base plate 4 makes, by reflecting more rays whole key panel 7 light luminances is evenly distributed.
Shown in Figure 2, be that light guide base plate 4 is installed on structural representation on the key panel 7, the appropriate location is provided with the shell fragment 3 of protrusion on its button substrate 1, and is provided with one deck conductive silver paste 5 at upper surface, and this is identical with the common key-press board structure; And light guide base plate 4 is pasted on the back side of key panel 7 with the one side that is not provided with printing ink site 6, and it is provided with a side of printing ink site 6, and LED lamp 2 is located at an end of light guide base plate 4; Then, key panel 7 is assembled in button substrate 1 top, makes light guide base plate 4 between key panel 7 and button substrate 1.
Described LED lamp can adopt color LED lamp or white LED lamp.When adopting color LED lamp, the printing ink site can be colored ink site or white ink site; When adopting common white LED lamp, then can adopt color light guide plate, and printing ink site be white in color transparence or colourful transparent shape, equally can be with the LED white light through color light guide plate and change into colorama.
Claims (7)
1, the printed form light guide plate used of a kind of electronic product button light source, comprise for the light guide base plate of being located at the key panel back side, light guide base plate one ora terminalis is characterized in that over against the LED lamp: a side surface that deviates from key panel in light guide base plate needs the luminous position place to be printed with some printing ink site at each.
2, light guide plate as claimed in claim 1 is characterized in that: described light guide base plate from by LED lamp one end to away from LED lamp one end by rare to thickly distributing the printing ink site.
3, light guide plate as claimed in claim 1 or 2 is characterized in that: described printing ink site is the printing ink site that is added with color pigment or Chinese white.
4, light guide plate as claimed in claim 1 or 2 is characterized in that: described light guide plate is a color light guide plate, and the printing ink site transparence or colored translucent that is white in color.
5, light guide plate as claimed in claim 1 or 2 is characterized in that: described LED lamp is color LED lamp or white LED lamp.
6, light guide plate as claimed in claim 1 is characterized in that: described light guide base plate is polyurethane substrate or silicon fiml substrate.
7, light guide plate as claimed in claim 1 is characterized in that: some printing ink site of described printing is point type or linear distributes or formation literal shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201709063U CN201107423Y (en) | 2007-11-14 | 2007-11-14 | Printed-type light conducting plate for electronic product press key light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201709063U CN201107423Y (en) | 2007-11-14 | 2007-11-14 | Printed-type light conducting plate for electronic product press key light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201107423Y true CN201107423Y (en) | 2008-08-27 |
Family
ID=39959233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201709063U Expired - Fee Related CN201107423Y (en) | 2007-11-14 | 2007-11-14 | Printed-type light conducting plate for electronic product press key light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201107423Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101950042A (en) * | 2010-09-10 | 2011-01-19 | 深圳安嵘光电产品有限公司 | Light-guiding plate made by using offset printing method and making method thereof |
| CN102122014A (en) * | 2011-04-14 | 2011-07-13 | 无锡睿涛光电科技有限公司 | Ultrathin light-guiding film and light-guiding structure thereof |
| TWI407473B (en) * | 2010-08-25 | 2013-09-01 | Fih Hong Kong Ltd | Keypad module |
| CN107367786A (en) * | 2017-08-22 | 2017-11-21 | 广东东华光电科技有限公司 | One kind exempts from silk-screen light guide plate |
| CN113721388A (en) * | 2021-08-30 | 2021-11-30 | 京东方科技集团股份有限公司 | Backlight module and display module |
-
2007
- 2007-11-14 CN CNU2007201709063U patent/CN201107423Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI407473B (en) * | 2010-08-25 | 2013-09-01 | Fih Hong Kong Ltd | Keypad module |
| CN101950042A (en) * | 2010-09-10 | 2011-01-19 | 深圳安嵘光电产品有限公司 | Light-guiding plate made by using offset printing method and making method thereof |
| CN102122014A (en) * | 2011-04-14 | 2011-07-13 | 无锡睿涛光电科技有限公司 | Ultrathin light-guiding film and light-guiding structure thereof |
| CN107367786A (en) * | 2017-08-22 | 2017-11-21 | 广东东华光电科技有限公司 | One kind exempts from silk-screen light guide plate |
| CN113721388A (en) * | 2021-08-30 | 2021-11-30 | 京东方科技集团股份有限公司 | Backlight module and display module |
| CN113721388B (en) * | 2021-08-30 | 2023-12-01 | 京东方科技集团股份有限公司 | Backlight module and display module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080827 Termination date: 20121114 |