CN104269118A - Optical interference elimination structure and method applied to LED display screen - Google Patents
Optical interference elimination structure and method applied to LED display screen Download PDFInfo
- Publication number
- CN104269118A CN104269118A CN201410605627.XA CN201410605627A CN104269118A CN 104269118 A CN104269118 A CN 104269118A CN 201410605627 A CN201410605627 A CN 201410605627A CN 104269118 A CN104269118 A CN 104269118A
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- Prior art keywords
- led
- gap
- optical interference
- light tight
- steel plate
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- 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
Abstract
The embodiment of the invention discloses an optical interference elimination structure and method applied to an LED display screen. The optical interference elimination structure and method are used for blocking side-emitting light sources of LEDs and eliminating the optical interference among the LEDs. The method comprises the following steps: the LEDs are sequentially arranged on a PCB, and gaps are reserved among the LEDs; light-proof components are arranged on the gaps so as to block the side-emitting light sources of the LEDs through the light-proof components.
Description
Technical field
The present invention relates to LED display technical field, be specifically related to a kind of optical interference being applied to LED display and eliminate structure and method.
Background technology
Light emitting diode (LED, Light-emitting Diode) display screen is made up of several ten thousand-hundreds of thousands semiconductor LED element arrangements, utilizes different materials can make the LED element of different color.As shown in Figure 1, spread configuration LED element on the circuit substrate of LED display, certain gap is also had between LED element and LED element, the light emission angle of launching due to LED element side is larger, interference can be caused, therefore, by the upper black face shield of cover in the gap between LED element in FIG to adjacent ray, this black face shield can stop and prevents the optical interference between LED element by the light that LED element is launched.But, gap between present LED element is more and more less, and use black face shield more and more difficult in gap, and the comparison of black face shield is expensive, gap between LED element is more and more less, and gap is less than 1.5mm, is difficult to produce suitable black face shield, so just be difficult to the light of keeping out LED element transmitting, optical interference between LED element can be caused.
Summary of the invention
Embodiments providing a kind of optical interference being applied to LED display and eliminate structure and method, for keeping out the light source of LED side-emitted, eliminating the optical interference between LED.
One aspect of the present invention provides a kind of optical interference being applied to LED display and eliminates structure, described LED display comprises printed circuit board (PCB) (PCB, Printed Circuit Board), LED components and parts are set on the pcb, described LED components and parts comprise several LED, described LED ordered arrangement on the pcb, has gap between described LED, and described optical interference is eliminated structure and comprised: light tight assembly;
Wherein, described light tight assembly is arranged in the gap between described LED.
The present invention provides a kind of optical interference removing method being applied to LED display on the other hand, can comprise:
Printing board PCB arranges LED in order, between described LED, there is gap;
Described gap arranges light tight assembly, to keep out the light source of described LED side-emitted by described light tight assembly.
As can be seen from the above technical solutions, structure is eliminated in the optical interference of LED display that what the embodiment of the present invention provided be applied to and method has the following advantages: this optical interference is eliminated structure and comprised light tight assembly, and this light tight assembly is arranged in the gap between LED, the light source of LED side-emitted is withstood by light tight assembly, eliminate the optical interference between LED, thus improve contrast.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in the embodiment of the present invention below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation being applied to the optical interference elimination structure of LED display that Fig. 1 provides for the embodiment of the present invention;
The schematic flow sheet being applied to the optical interference removing method of LED display that Fig. 2 provides for the embodiment of the present invention;
Fig. 3 arranges the process chart of optical cement for the gap between LED that the embodiment of the present invention provides;
Fig. 4 arranges the application schematic diagram of optical cement for the gap between LED that the embodiment of the present invention provides.
Embodiment
Below in conjunction with the accompanying drawing of the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiments provide a kind of optical interference being applied to LED display and eliminate structure and method, for keeping out the light source of LED side-emitted, eliminate the optical interference between LED, thus improve contrast.
As shown in Figure 1, embodiments provide a kind of optical interference being applied to LED display and eliminate structure, wherein, LED display comprises PCB-10, described PCB-10 arranges LED components and parts, and described LED components and parts comprise several LED-20, and described LED-20 is ordered on described PCB-10, have gap 30 between described LED, above-mentioned optical interference is eliminated structure and is comprised: light tight assembly 40;
Wherein, described light tight assembly 40 is arranged in the gap 30 between described LED.
Further, above-mentioned light tight assembly is specially optical cement.
Further, the gap between above-mentioned LED is less than or equal to 1.5mm.
Further, the height of above-mentioned light tight assembly is highly equal with described LED.
In embodiments of the present invention, by arranging light tight assembly in the gap between LED, this light tight assembly specifically optical cement, height and the LED of set optical cement highly flush, and then, the light source of LED side-emitted can be withstood by optical cement, prevent the optical interference between LED, improve contrast, and the water proofing property of optical cement is better, can be suitable for gap between LED and be less than in the display screen of 1.5mm.
Wherein, optical cement can be arranged in the gap between LED by modes such as wire mark, steel plate coating, some glue, spray printing, crack coating or scraper for coatings.Follow-uply will to describe in detail to the coating of wherein steel plate and scraper for coating, not repeat them here.
As shown in Figure 2, embodiments provide a kind of optical interference removing method being applied to LED display, can comprise:
S21, on PCB, LED is set in order, between described LED, there is gap;
The corresponding LED of spread configuration that flow of installation is orderly on PCB, and there is between LED certain gap.
This gap concrete can be less than or equal to 1.5mm.
S22, light tight assembly is set on described gap, to keep out the light source of described LED side-emitted by described light tight assembly.
Light tight assembly will be set in above-mentioned gap, and therefore, utilize this light tight assembly to withstand the light source of LED side-emitted.
In the embodiment of the present invention, this optical interference is eliminated structure and is comprised light tight assembly, and this light tight assembly is arranged in the gap between LED, is withstood the light source of LED side-emitted by light tight assembly, eliminate the optical interference between LED, thus improve contrast.
The light tight assembly provided in the embodiment of the present invention can be specifically optical cement, and this optical cement can arrange described optical cement by modes such as wire mark, steel plate coating, some glue, spray printing, crack coating or scraper for coatings in described gap.
For steel plate coated optical glue, as shown in Figure 3 and Figure 4, the technique that the gap between LED arranges optical cement comprises step:
S31, LED length according to described LED components and parts, width and described gap, make steel plate and also make on described steel plate and leak glue hole;
Wherein, need the length, width etc. according to LED components and parts entirety, and the gap between LED makes the leakage glue hole on steel plate and steel plate, the length of whole steel plate is more than or equal to the length of LED components and parts, equally, the width of whole steel plate is also greater than or equals the width of LED components and parts.Further, also according to the width of LED and gap etc., steel plate to make and leaks glue hole one to one with each gap.
The diameter in the leakage glue hole that steel plate makes is at least 1/2nd of gap length, to ensure that optical cement can successfully be injected in gap.
S32, described steel plate is placed on described LED components and parts, to make corresponding described gap, the leakage glue hole of described steel plate;
As shown in Figure 4, the steel plate 41 made is placed on LED components and parts, the leakage glue hole on steel plate and gap one_to_one corresponding.
S33, described optical cement is placed on described upper surface of steel plate, pushes described optical cement by scraper and inject described gap through described leakage glue hole.
Be laid in steel plate 41 upper surface at optical cement 42, then utilize scraper 43 to be pushed by optical cement 42, optical cement 42 is injected in gap by leaking glue hole.
Wherein, the paralysed mobility of optical cement can be adjusted to 1:2 ratio.
In embodiments of the present invention, according to length, the width of LED components and parts, and the length of LED, the gap between width and LED, make steel plate, glue hole is leaked in the gap this steel plate is provided with between LED one to one, steel plate is being placed on LED components and parts upper surface, optical cement is laid on steel plate, then the optical cement on steel plate is pushed by scraper, and then be injected in gap, the embodiment of the present invention can be useful in gap and be less than in the LED display of 1.5mm, for withstanding the light source of LED side-emitted.
Also optical cement can be set in gap above by glue spraying, specifically comprise: by glue spraying equipment by described optical cement spray in described gap.
Be understandable that, draw optical cement by glue spraying equipment, then by optical cement spray in each gap.
The present invention arranges optical cement except the steel plate coating that itemizes and the mode such as glue spraying; above-mentioned wire mark, some glue, spray printing, crack coating can realize arranging optical cement too; and the mode arranging optical cement in other gap that can realize between LED all belongs to protection scope of the present invention, in this no limit.
In embodiments of the present invention, this optical interference is eliminated structure and is comprised light tight assembly, and this light tight assembly is arranged in the gap between LED, is withstood the light source of LED side-emitted by light tight assembly, eliminate the optical interference between LED, thus improve contrast.
In the above-described embodiments, the description of each embodiment is all emphasized particularly on different fields, in certain embodiment, there is no the part described in detail, can see the associated description of other embodiments.
Above structure is eliminated to a kind of optical interference being applied to LED display provided by the present invention and method is described in detail, for one of ordinary skill in the art, according to the thought of the embodiment of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. structure is eliminated in the optical interference being applied to LED display, described LED display comprises printing board PCB, LED components and parts are set on the pcb, described LED components and parts comprise several LED, described LED ordered arrangement on the pcb, have gap between described LED, it is characterized in that, described optical interference is eliminated structure and is comprised: light tight assembly;
Wherein, described light tight assembly is arranged in the gap between described LED.
2. structure is eliminated in optical interference according to claim 1, it is characterized in that,
Described light tight assembly is specially optical cement.
3. structure is eliminated in optical interference according to claim 2, it is characterized in that,
Gap between described LED is less than or equal to 1.5mm.
4. structure is eliminated in optical interference according to claim 1, it is characterized in that,
The height of described light tight assembly is highly equal with described LED.
5. be applied to an optical interference removing method for LED display, it is characterized in that, comprising:
Printing board PCB arranges LED in order, between described LED, there is gap;
Described gap arranges light tight assembly, to keep out the light source of described LED side-emitted by described light tight assembly.
6. optical interference removing method according to claim 5, is characterized in that,
Described light tight assembly is specially optical cement.
7. optical interference removing method according to claim 6, is characterized in that, describedly on described gap, arranges light tight assembly comprise:
By wire mark, steel plate coating, some glue, spray printing, crack coating or scraper for coating, described optical cement is set in described gap.
8. optical interference removing method according to claim 7, is characterized in that,
Be coated on by described steel plate and in described LED gap, described optical cement is set comprises:
According to LED length and the described gap width of described LED components and parts, steel plate makes and leaks glue hole;
Described steel plate is placed on described LED components and parts, to make corresponding described gap, the leakage glue hole of described steel plate;
Described optical cement is placed on described upper surface of steel plate, pushes described optical cement by scraper and inject described gap through described leakage glue hole.
9. optical interference removing method according to claim 7, is characterized in that,
In described LED gap, arrange described optical cement by described glue spraying to comprise:
By glue spraying equipment by described optical cement spray in described gap.
10. the elimination of interference structure according to any one of claim 5 ~ 9, is characterized in that,
Described gap is less than or equal to 1.5mm, and described light tight component height is highly equal with described LED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410605627.XA CN104269118A (en) | 2014-10-30 | 2014-10-30 | Optical interference elimination structure and method applied to LED display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410605627.XA CN104269118A (en) | 2014-10-30 | 2014-10-30 | Optical interference elimination structure and method applied to LED display screen |
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| CN104269118A true CN104269118A (en) | 2015-01-07 |
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| CN201410605627.XA Pending CN104269118A (en) | 2014-10-30 | 2014-10-30 | Optical interference elimination structure and method applied to LED display screen |
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Application publication date: 20150107 |
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