CN104392676A - LED (Light-Emitting Diode) display screen - Google Patents
LED (Light-Emitting Diode) display screen Download PDFInfo
- Publication number
- CN104392676A CN104392676A CN201410755012.5A CN201410755012A CN104392676A CN 104392676 A CN104392676 A CN 104392676A CN 201410755012 A CN201410755012 A CN 201410755012A CN 104392676 A CN104392676 A CN 104392676A
- Authority
- CN
- China
- Prior art keywords
- extinction
- face shield
- led
- light
- light absorption
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Led Device Packages (AREA)
Abstract
The invention relates to the field of LED (Light-Emitting Diode) packaging, in particular to an LED display screen. The LED display screen comprises a lamp panel and LED lamp beads arranged on the lamp panel, wherein light absorption face masks are arranged on the lamp panel and are positioned among the LED lamp beads; the widths of the light absorption face masks are gradually reduced from the ends in contact with the lamp panel to the opposite ends. The light absorption face masks are arranged among the LED lamp beads for absorbing external light, so that external stray light is reduced, and the display contrast ratio is promoted; meanwhile, the structures of the light absorption face masks are improved, so that the widths, at the ends in contact with the lamp panel, of the light absorption face masks are greater than those at the other ends opposite to the ends in contact with the lamp panel, the widths, at the ends far away from the lamp panel, of the light absorption face masks are arranged in a reduced mode, the absorption and blocking of light absorption walls of the light absorption face masks for red, green and blue light rays in the LED lamp beads are reduced, the visual angle of the display screen is enlarged, and the visual color difference is eliminated as much as possible. Meanwhile, the using material of the light absorption face masks is further reduced, and the product cost is reduced.
Description
Technical field
The present invention relates to LED field, more specifically, relate to a kind of LED display.
Background technology
Along with the reduction of LED cost and spacing reduce, the application of LED display in indoor gets more and more.Due to the change of environment for use, the technical requirement for Small Distance LED is also more and more higher, and display effect requires higher, particularly contrast and vision, the contrast more needed, wider visual angle etc.
As shown in Figure 1, LED lamp bead 1 is covered on lamp plate 2 by Reflow Soldering mode and is formed by existing LED screen, and have metal pin to leak outside bottom LED lamp bead 1, on lamp plate 2, some pads are also metal materials.Because metal material can light reflection to external world, thus reduce display comparison degree.
In order to address this problem, as shown in Figure 2, industry is typically chosen on screen body adds black light-absorbing face shield 3, ambient light line absorption is fallen, reduces external stray light line, to promote display comparison degree.But after adding black light-absorbing face shield 3, black light-absorbing face shield 3 can stop the light that pixel sends, and the extinction wall of black light-absorbing face shield 3 is enclosed between LED lamp bead 1, it not only absorbs external environmental light, but also can absorb the light that part that LED lamp bead 1 sends normally shows image.And limit due to the size of small size LED lamp bead, the arrangement of inner R, G, B chip of general LED lamp bead 1 is according to rods arranged in horizontal line, every chips can be caused different relative to the position of extinction face shield 3 extinction wall, extinction wall is also different for the uptake of red, green, blue three kinds of color light, different colours can be seen from without viewed from angle, such as shown in Fig. 3, when watching in side, can be partially blue or green or partially blue, and when opposite side is watched, can be partially yellow or partially red, cause and look goniochromatism, have a strong impact on LED screen body display effect.
Therefore, how while guarantee display screen contrast, one of technical barrier becoming the solution of LED industry needs depending on goniochromatism can be eliminated.
Summary of the invention
The present invention for overcoming at least one defect (deficiency) described in above-mentioned prior art, provide a kind of can ensure Display Contrast while eliminate the LED display of looking goniochromatism as far as possible.
For solving the problems of the technologies described above, technical scheme of the present invention is as follows:
A kind of LED display, comprise lamp plate and be located at the LED lamp bead on lamp plate, on lamp plate and between LED lamp bead, arrange extinction face shield, the width of extinction face shield is reduced to another opposite end gradually by the one end contacted with lamp plate.
Compared with prior art, the beneficial effect of technical solution of the present invention is:
The present invention arranges extinction face shield and ambient light line absorption is fallen between LED lamp bead, reduce external spurious rays, promote display comparison degree, meanwhile, the structure of extinction face shield is improved by present patent application, the width of extinction face shield is reduced to another opposite end gradually by the one end contacted with lamp plate, under this structure, both ensure that the width of extinction face shield, thus ensure that the absorption completely of light to external world, the structure of ingehious design extinction face shield again, extinction face shield is arranged away from the tapering width of one end of lamp plate, reduce the extinction wall of extinction face shield to R in LED lamp bead, G, the absorption of B tri-coloured light line and stop, expand the visual angle of display screen, eliminate visual color phenomenon as much as possible.Simultaneously also save the material therefor of extinction face shield, save the cost of product.
Accompanying drawing explanation
Fig. 1 is the structural representation that in prior art, LED screen adopts SMT technology mounted LED lamp bulb and lamp plate.
Fig. 2 is the structural representation that in prior art, LED screen arranges extinction face shield.
Fig. 3 is that in prior art, LED screen causes the schematic diagram looking goniochromatism after arranging extinction face shield.
Fig. 4 is the schematic diagram that in a kind of LED display of the present invention, extinction face shield adopts three-legged structure.
Fig. 5 is the schematic diagram that in a kind of LED display of the present invention, extinction face shield adopts frustum structure.
Fig. 6 is that a kind of LED display extinction of the present invention face shield adopts three-legged structure to realize the structural representation of embodiment 2.
Fig. 7 is that a kind of LED display extinction of the present invention face shield adopts frustum structure to realize the structural representation of embodiment 2.
Fig. 8 is the structural representation of a kind of LED display specific embodiment 4 of the present invention.
1 is LED lamp bead, and 2 is lamp plate, and 3 is extinction face shield, and 4 is scattering rete, and 5 is reflecting coating, and 6 is extraneous light.
Embodiment
Accompanying drawing, only for exemplary illustration, can not be interpreted as the restriction to this patent;
In order to better the present embodiment is described, some parts of accompanying drawing have omission, zoom in or out, and do not represent the size of actual product;
To those skilled in the art, in accompanying drawing, some known features and explanation thereof may be omitted is understandable.
In describing the invention, it is to be appreciated that term " first ", " second " only for describing object, and can not be interpreted as the quantity of instruction or hint relative importance or implicit indicated technical characteristic.Thus, one or more these features can be expressed or impliedly be comprised to the feature of " first ", " second " of restriction.In describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also can be indirectly connected by intermediary, the connection of two element internals can be said.For the ordinary skill in the art, concrete condition above-mentioned term can be understood at concrete meaning of the present invention.
Below in conjunction with drawings and Examples, technical scheme of the present invention is described further.
Embodiment 1
As Figure 1-3, although prior art decreases the interference of extraneous light add extinction face shield 3 between LED lamp bead 1 after, cause the visual angle color phenomenon of display screen simultaneously.
In this specific embodiment, a kind of LED display specifically comprises lamp plate and is located at the LED lamp bead on lamp plate, and on lamp plate and between LED lamp bead, arrange extinction face shield 3, the width of extinction face shield is reduced to another opposite end gradually by the one end contacted with lamp plate.In this structure, ensure the width of the one end contacted with lamp plate in extinction face shield, preferably extinction face shield covers the gap between LED lamp bead completely, extinction face shield is absorbed completely enter the extraneous light in this gap, the width simultaneously arranging extinction face shield is reduced to another opposite end gradually by the one end contacted with lamp plate, make the width of extinction face shield with diminishing vibrational power flow, thus reduce R in LED lamp bead, G, the absorption of B tri-coloured light line and stop, thus expand the visual angle of display screen, eliminate visual color phenomenon extinction face shield being set and bringing as much as possible.
In specific implementation process, for the ease of making, as shown in Figure 4, the extinction wall 31 of extinction face shield 3 is hypotenuse form, and the extinction wall 31 of hypotenuse form is by centroclinal to extinction face shield 3 of the one end contacted with lamp plate 2.The extinction wall 31 of hypotenuse form is convenient to be made, the extinction wall 31 of extinction face shield 3 is obliquely installed the structure forming tapering width, thus the width realizing extinction face shield 3 by the one end contacted with lamp plate 2 to the diminishing structure in another opposite end, reach the object eliminated and look goniochromatism.In the preferred mode of one, as shown in Figure 4, extinction face shield 3 is triangular structure, and the hypotenuse of triangular structure forms the extinction wall 31 of extinction face shield 3 hypotenuse form, and triangular structure side is fixed on lamp plate 2.In addition, as shown in Figure 5, another preferred embodiment is that extinction face shield 3 is set to frustum structure, and the hypotenuse of frustum forms the extinction wall 31 of extinction face shield 3 hypotenuse form, and the bottom of frustum is fixed on lamp plate 2.Wherein the bottom of frustum is commonly referred to as that plane that in two planes of frustum, width is larger.
In a particular application, the special setting of extinction mask width the extinction wall of extinction face shield can also be arranged to arc to the width realizing extinction face shield by the one end contacted with lamp plate to the diminishing structure in another opposite end.
Embodiment 2
On the basis of embodiment 1, in order to the extinction wall that reduces extinction face shield is to R, G, B tri-absorption of coloured light line of LED lamp bead, this specific embodiment is provided with reflecting coating on the extinction wall of extinction face shield.Under this structure, extinction wall arranges reflecting coating, the high angle scattered light that LED lamp bead sends can be reflected, and avoids extinction wall to LED lamp bead R, G, B tri-absorption of coloured light line, improves the energy exitance of R, G, B tri-kinds of chip light in LED lamp bead.
More there is a kind of embodiment of choosing to be scattering rete is set on the exiting surface of LED lamp bead simultaneously, namely scattering rete is set in LED surface, the light after the reflection of extinction wall can be launched to all angles through scattering, eliminate further and look goniochromatism.
Particularly, as shown in Figure 6, when extinction face shield 3 adopts triangular structure, on the extinction wall of triangular structure, be provided with reflecting coating 5 accordingly, then scattering rete 4 is set on the exiting surface of LED lamp bead 1.Another kind of implementation as shown in Figure 7, when extinction face shield 3 adopts frustum structure, arranges reflecting coating 5 accordingly, then on the exiting surface of LED lamp bead 1, arranges scattering rete 4 on the extinction wall of frustum structure.Fig. 6 and Fig. 7 is only wherein two kinds of concrete implementations, when extinction face shield 3 adopts other versions to realize, can eliminate further equally and look goniochromatism, do not repeat them here based on this specific embodiment.
Embodiment 3
On the basis of embodiment 1 or 2, extinction face shield is set to black light-absorbing face shield by this specific embodiment, and namely extinction face shield adopts black material to make, and reaches the object absorbing extraneous light.
Embodiment 4
In the present invention, guarantee display screen contrast while eliminate depending on the LED display of goniochromatism in can also separately on extinction wall reflecting coating eliminate visual angle aberration in conjunction with scattering rete again, the extinction face shield of this structure can be set to regular square structure, elimination can be reached equally and look goniochromatism, as shown in Figure 8, the LED lamp bead that LED display specifically comprises lamp plate 2 and is located on lamp plate 2, lamp plate 2 arranges extinction face shield 3 between LED lamp bead 1, the extinction wall of extinction face shield 3 applies reflecting coating 5 and forms reflector layer, high angle scattered light pixel sent reflects, improve RGB tri-kinds of chip light ability exitances, and at Pixel surface, scattering rete 4 is set, make the light of outgoing after scattering to all angles scattering, reach elimination and look goniochromatism.
The corresponding same or analogous parts of same or analogous label;
Describe in accompanying drawing position relationship for only for exemplary illustration, the restriction to this patent can not be interpreted as;
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.All any amendments done within the spirit and principles in the present invention, equivalent to replace and improvement etc., within the protection domain that all should be included in the claims in the present invention.
Claims (7)
1. a LED display, comprise lamp plate and be located at the LED lamp bead on lamp plate, it is characterized in that, arrange extinction face shield on lamp plate and between LED lamp bead, the width of extinction face shield is reduced to another opposite end gradually by the one end contacted with lamp plate.
2. LED display according to claim 1, is characterized in that, the extinction wall of extinction face shield is hypotenuse form, and the extinction wall of hypotenuse form is by centroclinal to extinction face shield of the one end contacted with lamp plate.
3. LED display according to claim 1, is characterized in that, described extinction face shield is triangular structure, and the hypotenuse of triangular structure forms the extinction wall of extinction face shield hypotenuse form, and triangular structure side is fixed on lamp plate.
4. LED display according to claim 1, is characterized in that, described extinction face shield is frustum structure, and the hypotenuse of frustum forms the extinction wall of extinction face shield hypotenuse form, and the bottom of frustum is fixed on lamp plate.
5. LED display according to claim 1, is characterized in that, the extinction wall of extinction face shield is provided with reflecting coating.
6. LED display according to claim 5, is characterized in that, the exiting surface of LED lamp bead is arranged scattering rete.
7. the LED structure according to any one of claim 1 to 6, is characterized in that, described extinction face shield is black light-absorbing face shield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410755012.5A CN104392676A (en) | 2014-12-11 | 2014-12-11 | LED (Light-Emitting Diode) display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410755012.5A CN104392676A (en) | 2014-12-11 | 2014-12-11 | LED (Light-Emitting Diode) display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104392676A true CN104392676A (en) | 2015-03-04 |
Family
ID=52610569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410755012.5A Pending CN104392676A (en) | 2014-12-11 | 2014-12-11 | LED (Light-Emitting Diode) display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104392676A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104751746A (en) * | 2015-03-27 | 2015-07-01 | 深圳市联建光电股份有限公司 | Manufacturing process for LED lamp panel of low reflectivity, LED lamp panel and LED display screen |
| CN105679193A (en) * | 2016-03-16 | 2016-06-15 | 深圳市艾比森光电股份有限公司 | Method for improving display effect of LED display screen and display structure |
| JP2018045165A (en) * | 2016-09-16 | 2018-03-22 | 大日本印刷株式会社 | Optical sheet, display device, and array-type display device |
| CN108205970A (en) * | 2016-12-20 | 2018-06-26 | 乐金显示有限公司 | Display device and the multiscreen display apparatus including the display device |
| CN109256051A (en) * | 2018-09-20 | 2019-01-22 | 深圳市海讯高科技术有限公司 | A kind of COB display screen and its packaging method |
| CN109637383A (en) * | 2019-01-18 | 2019-04-16 | 深圳市洲明科技股份有限公司 | LED display module and its treatment process and processing equipment |
| TWI658301B (en) * | 2017-12-22 | 2019-05-01 | 財團法人工業技術研究院 | Display device |
| CN110459138A (en) * | 2019-08-06 | 2019-11-15 | 深圳市齐普光电子股份有限公司 | A kind of LED display that can show text information and its display methods |
| WO2020063701A1 (en) * | 2018-09-28 | 2020-04-02 | 深圳光峰科技股份有限公司 | Led display screen |
| CN110969956A (en) * | 2018-09-28 | 2020-04-07 | 深圳光峰科技股份有限公司 | LED display screen |
| CN110969953A (en) * | 2018-09-28 | 2020-04-07 | 深圳光峰科技股份有限公司 | LED display screen |
| CN114863834A (en) * | 2022-05-27 | 2022-08-05 | 深圳市艾比森光电股份有限公司 | LED display module and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020000056A1 (en) * | 2000-05-25 | 2002-01-03 | Rohm Co., Ltd. | Light emitting display device |
| CN101447150A (en) * | 2008-12-22 | 2009-06-03 | 深圳市钧多立实业有限公司 | LED display screen mask and LED novel display screen |
| CN102694103A (en) * | 2011-03-25 | 2012-09-26 | 展晶科技(深圳)有限公司 | Led packaging structure |
| CN103939808A (en) * | 2014-03-31 | 2014-07-23 | 瑞仪光电股份有限公司 | Light source module |
-
2014
- 2014-12-11 CN CN201410755012.5A patent/CN104392676A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020000056A1 (en) * | 2000-05-25 | 2002-01-03 | Rohm Co., Ltd. | Light emitting display device |
| CN101447150A (en) * | 2008-12-22 | 2009-06-03 | 深圳市钧多立实业有限公司 | LED display screen mask and LED novel display screen |
| CN102694103A (en) * | 2011-03-25 | 2012-09-26 | 展晶科技(深圳)有限公司 | Led packaging structure |
| CN103939808A (en) * | 2014-03-31 | 2014-07-23 | 瑞仪光电股份有限公司 | Light source module |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104751746B (en) * | 2015-03-27 | 2018-02-23 | 深圳市联建光电股份有限公司 | LED lamp panel manufacturing process, LED lamp panel and the LED display of a kind of antiradar reflectivity |
| CN104751746A (en) * | 2015-03-27 | 2015-07-01 | 深圳市联建光电股份有限公司 | Manufacturing process for LED lamp panel of low reflectivity, LED lamp panel and LED display screen |
| CN105679193A (en) * | 2016-03-16 | 2016-06-15 | 深圳市艾比森光电股份有限公司 | Method for improving display effect of LED display screen and display structure |
| JP2018045165A (en) * | 2016-09-16 | 2018-03-22 | 大日本印刷株式会社 | Optical sheet, display device, and array-type display device |
| CN108205970A (en) * | 2016-12-20 | 2018-06-26 | 乐金显示有限公司 | Display device and the multiscreen display apparatus including the display device |
| US10541233B2 (en) | 2017-12-22 | 2020-01-21 | Industrial Technology Research Institute | Display device |
| TWI658301B (en) * | 2017-12-22 | 2019-05-01 | 財團法人工業技術研究院 | Display device |
| CN109256051A (en) * | 2018-09-20 | 2019-01-22 | 深圳市海讯高科技术有限公司 | A kind of COB display screen and its packaging method |
| CN110969954A (en) * | 2018-09-28 | 2020-04-07 | 深圳光峰科技股份有限公司 | LED display screen |
| WO2020063701A1 (en) * | 2018-09-28 | 2020-04-02 | 深圳光峰科技股份有限公司 | Led display screen |
| CN110969956A (en) * | 2018-09-28 | 2020-04-07 | 深圳光峰科技股份有限公司 | LED display screen |
| CN110969953A (en) * | 2018-09-28 | 2020-04-07 | 深圳光峰科技股份有限公司 | LED display screen |
| CN110969954B (en) * | 2018-09-28 | 2022-04-15 | 深圳光峰科技股份有限公司 | LED display screen |
| CN109637383A (en) * | 2019-01-18 | 2019-04-16 | 深圳市洲明科技股份有限公司 | LED display module and its treatment process and processing equipment |
| CN110459138A (en) * | 2019-08-06 | 2019-11-15 | 深圳市齐普光电子股份有限公司 | A kind of LED display that can show text information and its display methods |
| CN114863834A (en) * | 2022-05-27 | 2022-08-05 | 深圳市艾比森光电股份有限公司 | LED display module and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104392676A (en) | LED (Light-Emitting Diode) display screen | |
| CN102968931B (en) | Triangular light emitting diode (LED) display screen module and display screen | |
| CN102207567A (en) | Seam-removing device and seamless spliced display device | |
| US10578928B2 (en) | Display panel and display device | |
| CN104534417B (en) | A kind of PCB and its down straight aphototropism mode set of application | |
| CN103175034A (en) | Light-emitting diode (LED) backlight module | |
| CN205427226U (en) | Light conducting board and backlight module using same | |
| CN105556355A (en) | Light diffusing lens and light emitting device having same | |
| CN101915391A (en) | Polarization LED light distribution lens and LED street lamp | |
| KR20110125901A (en) | Light-emitting element array, backlight apparatus, and illumination apparatus | |
| US10013899B2 (en) | LED display module and its produce method | |
| CN103017085A (en) | Reflecting lens, backlight module using reflecting lens and display device | |
| CN105531607A (en) | Light diffusing lens and light emitting device having same | |
| CN104360431B (en) | Light guide plate, backlight module and display | |
| CN105333334A (en) | LED light bar and liquid crystal display module | |
| US20130151209A1 (en) | Method for designing uniform illumination reflector | |
| US20140198496A1 (en) | Illumination apparatus | |
| CN205643961U (en) | Backlight module and display device thereof | |
| CN104834127A (en) | Display panel and projection display device | |
| CN105579764A (en) | Illumination device and display device | |
| TWI454799B (en) | Backlight module | |
| CA2939499C (en) | Reflecting face mask and led display device having the same | |
| US9166125B2 (en) | Comprehensive light-emitting diode device and lighting-module | |
| CN103712155A (en) | Lamp cover, backlight module and displaying device | |
| CN101853615A (en) | LED display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150304 |