CN103605437B - Led display screen - Google Patents
Led display screen Download PDFInfo
- Publication number
- CN103605437B CN103605437B CN201310549592.8A CN201310549592A CN103605437B CN 103605437 B CN103605437 B CN 103605437B CN 201310549592 A CN201310549592 A CN 201310549592A CN 103605437 B CN103605437 B CN 103605437B
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- Prior art keywords
- led
- screen
- led display
- light sensitive
- refractive index
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- 239000000463 material Substances 0.000 claims description 14
- 238000005286 illumination Methods 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 4
- 239000012780 transparent material Substances 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 2
- 238000005538 encapsulation Methods 0.000 claims description 2
- 229920006335 epoxy glue Polymers 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000010897 surface acoustic wave method Methods 0.000 description 1
Landscapes
- Position Input By Displaying (AREA)
Abstract
An LED display screen comprises LEDs, at least one photosensitive diode inserted among the LEDs, and a screen body attached in front of the LEDs and the photosensitive diodes. When pressure is applied on the outer surface of the screen body, the surface of the screen body can slightly deform, changing of angle of LED incident light is caused, LED light is reflected onto the photosensitive diodes, reverse current is increased when the photosensitive diodes are irradiated by light, and coordinates of touch or click can be determined by detecting the reverse current of the photosensitive diodes, so that touch of the LED display screen is realized.
Description
Technical field
The present invention relates to touching technique field, more particularly to a kind of LED display.
Background technology
With science and technology development and electronic product grow with each passing day, touch screen with its easy to use, response speed it is fast, save
The advantages of space, it is widely used.Traditional touch screen is divided into resistance according to operation principle and the medium of transmission information
Formula, capacitor induction type, infrared-type and surface acoustic wave type.
LED（Light-Emitting Diode, light emitting diode）Display screen is by tens of thousands of-hundreds of thousands semiconductor light emitting
Diode（LED）The evenly distributed composition of pixel, can manufacture the LED pixel point of different color using different materials.LED shows
Display screen has the advantages that colour mixture is good, highly reliable, visible angle is big, permeability is high, brightness is high.But there is presently no realization
The technology that LED display is touched.
The content of the invention
Based on this, it is necessary to for the problems referred to above, there is provided a kind of LED display that can be touched.
A kind of LED display, including insert between LED, LED at least one light sensitive diode, be affixed on each LED and photosensitive
Screen before diode.
Above-mentioned LED display, LED light in the case where there is electric current to pass through, when to offscreen surface applying pressure
When, the offscreen surface can produce faint deformation, cause LED incident angle of light to change, and LED light is reflected to photosensitive two
In pole pipe, when light sensitive diode is subject to light irradiation, reverse current increases, by detecting that the reverse current of light sensitive diode can be true
The fixed coordinate for touching or clicking on, so as to realize the touch of LED display.
Description of the drawings
Structural representations of the Fig. 1 for the embodiment of the present invention one；
Principle schematics of the Fig. 2 for the embodiment of the present invention one；
Fig. 3 is the floor map of LED and LSD embodiments of the present invention；
Fig. 4 is the floor map of LED and LSD embodiments of the present invention two；
Fig. 5 is the floor map of LED and LSD embodiments of the present invention three；
Structural representations of the Fig. 6 for the embodiment of the present invention two；
Structural representations of the Fig. 7 for the embodiment of the present invention three.
Specific embodiment
The concrete operations mode of LED display of the present invention is done in the way of specific embodiment below in conjunction with the accompanying drawings and retouch in detail
State.
Embodiment one
As shown in figure 1, a kind of LED display, including at least one light sensitive diode inserted between LED10, LED10
（LSD）20th, the screen 30 being affixed on before each LED10 and LSD20.
As shown in Fig. 2 LED10 lights in the case where there is electric current to pass through, when to 30 outer surface of screen applying pressure
When, 30 outer surface of the screen can produce faint deformation, cause the light that the LED10 in corresponding region sends to incide corresponding screen
During curtain inner surface, angle changes, and the incident illumination of LED10 is reflexed on LSD20 by screen inner surface, and LSD20 is subject to light irradiation
When reverse current increase, by detect LSD20 reverse current can determine touch or click on coordinate, so as to realize LED show
The touch of display screen.
As shown in figure 3, as a kind of preferred embodiment, inserting a LSD20 at interval of a LED10.So touching
Or when clicking on the optional position of screen, the LED10 incident illuminations for having respective regions are reflected on adjacent LSD20, by inspection
Survey the reverse current of corresponding LSD20, it may be determined that arbitrarily touch on screen or click location coordinate, touch precision compared with
It is high.
Furthermore it is also possible to the different quantity for requiring, adjusting LSD20 according to screen to the touch degree of accuracy of touch signal.
As shown in figure 4, a LSD20 can be inserted at interval of more than one LED10, for example, a LSD20 is inserted every 4 LED10,
Can also realize the full frame touch of LED display, but may be when touching from LSD20 screen areas farther out, because not having
The light for having the light for reflexing to LSD20 or reflexing to LSD20 is faint, and can't detect the curent change of LSD20, it is possible to nothing
Method determines the coordinate of touch or click location on screen, touches precision relative to relatively low during one LED10 in interval.
If user only needs to realize touch function in certain region, only can consider to insert LSD20 in this region, such as
Shown in Fig. 5, if the LSD20 inserted between LED10 is less, such as 1, then only when the region near LSD20 is touched,
LED10 incident illuminations are possible to be reflected on LSD20, realize that the local of LED display is touched.
Embodiment two
Embodiment two is the further optimization to embodiment one, and the LED display is also including stickum 40.
As one embodiment, as shown in fig. 6, binding agent or epoxy glue or PUR can be passed through or other have viscosity
Material the screen 30 is affixed on before each LED10 and LSD20 as stickum 40.So each LED10 and LSD20 can
With firm connection seamless with the screen 30, consolidate LED display firm.
In a specific embodiment, the refractive index of the screen 30, the refractive index of LSD20 encapsulating materials, LED10 encapsulation
The refractive index of material, the stickum 40 refractive index it is equal.When above-mentioned refractive index is equal, the light that LED10 sends is successively
There is no refraction when inciding 40 interface of LED10 encapsulating materials and stickum, 30 interface of stickum 40 and screen, it is ensured that
It is straight line that LED10 incides screen 30 and the light of Air Interface.In the same manner, corresponding reflection light sequentially passes through screen 30 and glues
Property the interface of material 40, the interface of stickum 40 and LSD encapsulating materials when there is no refraction, it is ensured that the light of reflection is incided
It is straight line during LSD20.Which reduce LED10 light and reflect when the stickum 40, described screen 30 etc. are propagated and bring
Energy loss, more luminous energy is incided on LSD20, then according to the size of LSD20 electric currents judge touch click on position
Coordinate is put, is improved and is judged to touch the precision clicked on.
In the case where above-mentioned refractive index is equal, can using according to the larger material of total reflection formula selective refraction rate as
Screen 30 etc., when touching or click on 30 outer surface of screen, is easily more than when LED10 light incides screen 30 and Air Interface critical
Angle, so as to there is total reflection, makes more light energy reflecteds to LSD20, improves the sensitivity that LSD20 detects electric current, so as to enter
One step is improved and touches the precision clicked on.
Other technical characteristics of the present embodiment are identical with embodiment one, will not be described here.
Embodiment three
Embodiment three is the further optimization to the various embodiments described above, and the offscreen surface posts reflective membrane.
As one embodiment, as shown in fig. 7,30 outer surface of the screen can post reflective membrane 50.The reflective membrane
50 extraneous ray of reflecting, make 30 Unidirectional transparent of screen, i.e., A to B directions printing opacity shown in figure.So ambient it is incident less than
On LSD20, the impact that electric current is detected to LSD20 is greatly reduced, so as to more accurate and sensitive judgement touches click location.
As a preferred embodiment, transparent material can be selected as screen 30, the content that LED display shows is made
Can see from the outside, improve the practicality of product.The material of the screen 30 can for glass, resin, plastics or other
Any transparent material.
Other technical characteristics of the present embodiment are identical with the various embodiments described above, will not be described here.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more concrete and detailed, but and
Therefore the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, some deformations and improvement can also be made, these belong to the guarantor of the present invention
Shield scope.Therefore, the protection domain of patent of the present invention should be defined by claims.
Claims (4)
1. a kind of LED display, including LED, it is characterised in that be additionally included between the LED of regional area insert to
A few light sensitive diode, be affixed on each LED and the light sensitive diode before screen, and the screen is affixed on into each LED
With the stickum before light sensitive diode；The refractive index of the stickum, the refractive index of the screen, photosensitive two pole
The refractive index of pipe encapsulating material, the refractive index of LED encapsulation material are equal；The material of the screen is chosen according to total reflection formula；
When pressure is applied to the offscreen surface, the incident illumination of the LED in corresponding region is totally reflected to by screen inner surface
On light sensitive diode, by detecting that the reverse current of light sensitive diode determines the coordinate for touching.
2. LED display according to claim 1, it is characterised in that the stickum includes binding agent or epoxy glue
Or PUR.
3. LED display according to claim 1 and 2, it is characterised in that the offscreen surface posts reflective membrane.
4. LED display according to claim 1, it is characterised in that the material of the screen is transparent material, described
Bright material includes glass, resin, plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310549592.8A CN103605437B (en) | 2013-11-07 | 2013-11-07 | Led display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310549592.8A CN103605437B (en) | 2013-11-07 | 2013-11-07 | Led display screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103605437A CN103605437A (en) | 2014-02-26 |
| CN103605437B true CN103605437B (en) | 2017-04-12 |
Family
ID=50123670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310549592.8A Expired - Fee Related CN103605437B (en) | 2013-11-07 | 2013-11-07 | Led display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103605437B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111078067A (en) * | 2019-06-09 | 2020-04-28 | 广东小天才科技有限公司 | Information positioning method and electronic equipment |
| CN110390891B (en) * | 2019-08-05 | 2020-07-17 | 深圳市玖润光电科技有限公司 | L ED display screen mask |
| CN112185270A (en) * | 2020-09-17 | 2021-01-05 | 深圳市奥拓电子股份有限公司 | COB display module with interaction function, preparation method and display screen |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201477557U (en) * | 2009-07-03 | 2010-05-19 | 北京汇冠新技术股份有限公司 | Interactive display |
| CN201535901U (en) * | 2009-07-03 | 2010-07-28 | 北京汇冠新技术股份有限公司 | Touch screen |
| CN101840289A (en) * | 2010-04-16 | 2010-09-22 | 友达光电股份有限公司 | Touch control module and sensing device |
| CN101943973A (en) * | 2009-07-03 | 2011-01-12 | 北京汇冠新技术股份有限公司 | Interactive display |
| CN101943972A (en) * | 2009-07-03 | 2011-01-12 | 北京汇冠新技术股份有限公司 | Touch screen |
| CN102308267A (en) * | 2009-05-28 | 2012-01-04 | 夏普株式会社 | Touch panel, liquid crystal panel, liquid crystal display device, and liquid crystal display device incorporating touch panel |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7042444B2 (en) * | 2003-01-17 | 2006-05-09 | Eastman Kodak Company | OLED display and touch screen |
| US8760431B2 (en) * | 2008-07-17 | 2014-06-24 | Samsung Display Co., Ltd. | Display apparatus |
| CN201796564U (en) * | 2010-08-18 | 2011-04-13 | 北京汇冠新技术股份有限公司 | LED display |
| KR101726597B1 (en) * | 2010-12-13 | 2017-04-14 | 삼성전자주식회사 | Display apparatus for sensing multi touch and proximated object |
-
2013
- 2013-11-07 CN CN201310549592.8A patent/CN103605437B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102308267A (en) * | 2009-05-28 | 2012-01-04 | 夏普株式会社 | Touch panel, liquid crystal panel, liquid crystal display device, and liquid crystal display device incorporating touch panel |
| CN201477557U (en) * | 2009-07-03 | 2010-05-19 | 北京汇冠新技术股份有限公司 | Interactive display |
| CN201535901U (en) * | 2009-07-03 | 2010-07-28 | 北京汇冠新技术股份有限公司 | Touch screen |
| CN101943973A (en) * | 2009-07-03 | 2011-01-12 | 北京汇冠新技术股份有限公司 | Interactive display |
| CN101943972A (en) * | 2009-07-03 | 2011-01-12 | 北京汇冠新技术股份有限公司 | Touch screen |
| CN101840289A (en) * | 2010-04-16 | 2010-09-22 | 友达光电股份有限公司 | Touch control module and sensing device |
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| Publication number | Publication date |
|---|---|
| CN103605437A (en) | 2014-02-26 |
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Address after: Kezhu road high tech Industrial Development Zone, Guangzhou city of Guangdong Province, No. 233 510670 Patentee after: VTRON GROUP Co.,Ltd. Address before: 510663 Guangzhou province high tech Industrial Development Zone, Guangdong, Cai road, No. 6, No. Patentee before: VTRON TECHNOLOGIES Ltd. |
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