CN101140720A - High-contrast luminous diode display screen - Google Patents
High-contrast luminous diode display screen Download PDFInfo
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- CN101140720A CN101140720A CNA200710176397XA CN200710176397A CN101140720A CN 101140720 A CN101140720 A CN 101140720A CN A200710176397X A CNA200710176397X A CN A200710176397XA CN 200710176397 A CN200710176397 A CN 200710176397A CN 101140720 A CN101140720 A CN 101140720A
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Abstract
A high-contrast LED display screen is provided, which belongs to the technical field of large-screen display on LED screen and comprises a glare protective screen of high contrast, an LED cell box, a screen and a frame bonding adhesive tape. Each cell box of the LED display requires a screen to increase high-contrast screens. The cell around the box structure is used to support the high-contrast screen whose frame is in the shape of zigzag. The sawtooth is crossed with the LED, and the high-contrast screen is inlaid 0.5 mm to 2.0 mm inside the frame. The width and height of the frame is 0.2mm to 3.0mm larger than that of the high-contrast screen, which has the advantages of waterproof function without the working procedure on glue-pouring in LED screen production, low difficulty and cost for maintenance and improving of the screen contrast.
Description
Technical field
The invention belongs to light emitting diode (LED) display screen (light electrony display is called for short LED) Large Screen Display Technology field, a kind of high-contrast light emitting diode (LED) display screen particularly is provided.
Background technology
In LED giant-screen industry, be divided into: three kinds of pasters, inferior Surface Mount, straight cutting lamp according to the encapsulation of LED lamp is different.For the all-colour LED giant-screen, each pixel all is made up of the LED light lamp of three kinds of colors, is divided into red, green, blue (R, G, B) three kinds of colors.All all-colour LED large screen systems are that external product or home products all are that LED light lamp directly is emerging in the outside.Be used for when outdoor, for reaching rainproof requirement with plastic face mask encapsulating encapsulation process.Since the LED giant-screen be by One's name is legion by red, green, blue (R, G, B) pixel one by one of the LED light lamp of three kinds of colors composition is gathered the image display system that forms, the damage that assembles any one LED light lamp of image all can influence the quality of image, make general image flaw occur, for the quality that guarantees image must be changed the LED light lamp of damaging, owing to the reason of encapsulating is required great effort the replacing of LED light lamp very much, must remove the encapsulating layer, sealing again, i.e. effort after the LED light lamp of damaging have been changed, take a lot of work, take fund again.
The contrast of image is one of important indicator of weighing picture quality, contrast is display screen (white luminance+shiny black degree)/shiny black degree, white luminance/shiny black degree when the contrast of common display screen nominal is the maximum image output of measuring in the darkroom, be meant in the contrast that does not have under the ambient light disturbed condition, though nominal is very high, have very big misleading.Under the situation that has ambient light to disturb, contrast 20: 1st, standard, general designing requirement contrast is more than 40: 1, and being lower than 10: 1 will influence the effect of watching.The peak brightness design of outdoor LED screen is generally at 5500 ~ 8000cd/m
2Even when outdoor illumination is 87000LX, there is the shiny black degree of the LED screen of shadow shield also can reach 600CD/M
2, the contrast of screen does not reach 20: 1 standard of contrast yet, does not more reach more than 40: 1.Indoor illumination is generally between 100 ~ 1000LX, especially for the three-in-one LED screen of the Surface Mount that does not increase the shadow shield design, the shiny black degree of LED screen is generally between 10～100, screen body brightness design is generally between 500～1200, the contrast of screen is between 5～120, when indoor illumination intensity is higher than 1000LX, the contrast of screen may not reach 20: 1, especially under the contour illumination situation of performance, the contrast of LED screen is inadequate especially, often can see that on TV the LED screen is white the situation that does not see image.
Summary of the invention
The object of the present invention is to provide the high-contrast light emitting diode (LED) display screen, realized high-contrast, the LED screen that encapsulating can waterproof, solved LED screen maintenance difficult, cost is high and visual level is few, contrast is low problem.Omitted the encapsulating operation of LED screen waterproof and made that the maintenance of LED screen is easier, cost is lower; Improved the contrast of LED screen image, made the LED screen can represent level and smooth more fine and smooth, more multi-layered time image effect.
Core of the present invention is to improve the shadow shield design of LED screen, having removed shadow shield and LED screen waterproof need be to the encapsulating encapsulation of lamp plate, Screen Technology is introduced in the structure of LED screen, adopt the unit package of screen to LED screen body, can prevent also that at LED screen LED light lamp outer package anti-dazzle extraneous natural light from entering the subsides grating class black film on glare proof glass to the luminous interference of LED light lamp, around adhesive tape sealing screen and LED unit box, the sealing to the LED screen light plate is omitted in the effect that reaches LED light panel waterproof and improve LED screen contrast.
The screen that shields the LED light lamp outer package high-contrast of body unit at LED, its effect is except that waterproof, can improve the blackness of LED screen body unit, reduce the incidence natural lights interference luminous to LED light lamp, reduce the interference of the image that reflected light is fused into after luminous LED light lamp, the shiny black degree of LED screen reaches the purpose that improves LED screen contrast when being reduced in natural light illumination especially natural light illumination is greater than 1000LX.
The present invention is made up of anti-dazzle high-contrast screen, LED unit box, screen and framework jointing tape.Fig. 1 is LED unit box structural drawing, 1 high-contrast screen, 2LED unit box, 3 screens and a framework jointing tape of the present invention.
After the LED system adopts high-contrast screen, each unit box of LED screen all has screen, the design of LED screen unit box is different from the LED screen unit box that traditional sealing adds the sunshading board design, and the LED lamp plate does not need to do the waterproof encapsulating, does not need the preceding sunshading board of lamp yet.Casing need be considered be high-contrast screen installation and with the splicing of other unit.Its characteristics of body structure are that it is zigzag that LED shields the frame that supports high-contrast screen all around in the unit, and sawtooth is what to be intersected with LED light lamp, high-contrast screen is to ride on the frame as shown in Figure 2, be embedded in 0.5～2mm in the frame, wide, the high size of frame is greater than wide, the high size 0.2～3mm of high-contrast screen.
Being connected as shown in Figure 3 between casing and the casing is that the register pin 4 by casing connects, casing and framework be connected accurate Kong Weiyu ring flange connection by four jiaos of box back surfaces after be connected with framework again, as shown in Figure 4.High-contrast LED display system splicing construction as shown in Figure 5, the thickness of whole splicing large-size screen monitors can be accomplished less than 20cm.
The present invention requires high-contrast screen not influence the visual angle of LED screen and possesses anti-dazzle function, line reflection function against sunshine, raising Display Contrast function.This screen is realized high-contrast by improving polarized light property.Increased the weight of the deep sense of LED image, image level has had tangible increase.Make the LED system can obtain level and smooth more fine and smooth image effect.
High-contrast screen can be selected black anti-dazzle quartz glass or organic glass for use, also can be made up of glare proof glass and high-contrast film screen, adopts the method at pad pasting on glass, by the compound pad pasting glass of the black transparent that becomes anti-dazzle behind the pad pasting.
The jointing tape of high-contrast screen and framework is heat-resisting, the low stretching of waterproof, high strength adhesive tape among the present invention, requires clinging power 3.3N/10mm; Tensile strength 40N/10mm; Breaking elongation 100% (annotate: 1 newton/(10mm)=100kg/s
2).
The invention has the advantages that the encapsulating operation that can omit the production of LED screen reaches water-proof function equally, reduces maintenance difficulty and maintenance cost, and can improve the contrast of LED screen.
Description of drawings
Fig. 1 LED cellular construction synoptic diagram.Wherein, screen 1, casing 2, jointing tape 3.
Fig. 2 high-contrast screen and casing frame connection diagram
Frame connection diagram between Fig. 3 casing and the casing.Wherein, register pin 4.
The synoptic diagram that is located by connecting of Fig. 4 unit box back side and ring flange
The connection diagram of splicing of Fig. 5 unit box and framework
Embodiment
Fig. 1: customize casing frame mould as shown in FIG. earlier, size on request is spliced into casing with mould, LED lamp plate and control panel are fixed on the fixed mount in the casing, with the high-contrast screen embedding glass on the casing frame, fix with rubber belt sealing again, cover bonnet at last.
Fig. 2: have one little on the featheredge of casing frame, 2/3 of screen glass thickness is embedded on the little platform of casing featheredge frame, uses the high strength adhesive tape with screen glass and casing frame sealing and fixing again.
Fig. 3: the casing frame dowel hole all arranged up and down, with the pin casing up and down that is located by connecting, fix at box back surface by ring flange again.
Fig. 4: each box back surface has the accurate localization screw on 4 angles, and ring flange can be connected with positioning screw hole accurately, and it is fixedly connected by ring flange to face casing mutually, makes the unit box can the very accurate giant-screen that is spliced into an integral body.
Fig. 5: fixed head is also arranged on the vertical plane of each ring flange, screw is arranged on the fixed head, by screw with land framework and be connected.Whole erection should fixedly mount from bottom to top.
Claims (4)
1. a high-contrast light emitting diode (LED) display screen is characterized in that, is made up of anti-dazzle high-contrast screen, LED unit box, screen and framework jointing tape; LED display will increase high-contrast screen, and each unit box that must LED display all will have screen; Body structure is that the frame that supports high-contrast screen around the unit is zigzag, and sawtooth is what to be intersected with LED light lamp, high-contrast screen is to ride on the frame, be embedded in 0.5～2mm in the frame, wide, the high size of frame is greater than wide, the high size 0.2～3mm of high-contrast screen.
2. according to the described high-contrast light emitting diode (LED) display screen of claim 1, it is characterized in that, being connected between casing and the casing is that the register pin (4) by casing connects, being connected of casing and framework is connected with framework after accurate Kong Weiyu ring flange by four jiaos of box back surfaces connects again, and the thickness of the whole splicing large-size screen monitors of high-contrast LED display system is less than 20cm.
3. according to the described high-contrast light emitting diode (LED) display screen of claim 1, it is characterized in that, high-contrast screen is selected black anti-dazzle quartz glass or organic glass for use, or form by glare proof glass and high-contrast film screen, employing is in the method for pad pasting on glass, by the compound pad pasting glass of the black transparent that becomes anti-dazzle behind the pad pasting.
4. according to the described high-contrast light emitting diode (LED) display screen of claim 1, it is characterized in that the jointing tape of high-contrast screen and framework is heat-resisting, the low stretching of waterproof, high strength adhesive tape, requires clinging power 3.3N/10mm; Tensile strength 40N/10mm; Breaking elongation 100%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710176397XA CN101140720B (en) | 2007-10-26 | 2007-10-26 | High-contrast luminous diode display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710176397XA CN101140720B (en) | 2007-10-26 | 2007-10-26 | High-contrast luminous diode display screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101140720A true CN101140720A (en) | 2008-03-12 |
| CN101140720B CN101140720B (en) | 2010-06-09 |
Family
ID=39192658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710176397XA Expired - Fee Related CN101140720B (en) | 2007-10-26 | 2007-10-26 | High-contrast luminous diode display screen |
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| Country | Link |
|---|---|
| CN (1) | CN101140720B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105845036A (en) * | 2015-01-14 | 2016-08-10 | 丁炜慷 | Whole seamless display curtain wall system with full coverage of pixel after splicing |
| CN106448457A (en) * | 2016-09-08 | 2017-02-22 | 利亚德光电股份有限公司 | Display device |
| CN113903271A (en) * | 2021-09-28 | 2022-01-07 | 京东方科技集团股份有限公司 | Display module and splicing display device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2906803Y (en) * | 2006-05-25 | 2007-05-30 | 张大义 | High contrast LED module mask structure |
-
2007
- 2007-10-26 CN CN200710176397XA patent/CN101140720B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105845036A (en) * | 2015-01-14 | 2016-08-10 | 丁炜慷 | Whole seamless display curtain wall system with full coverage of pixel after splicing |
| CN106448457A (en) * | 2016-09-08 | 2017-02-22 | 利亚德光电股份有限公司 | Display device |
| CN113903271A (en) * | 2021-09-28 | 2022-01-07 | 京东方科技集团股份有限公司 | Display module and splicing display device |
| CN113903271B (en) * | 2021-09-28 | 2023-11-28 | 京东方科技集团股份有限公司 | Display module and spliced display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101140720B (en) | 2010-06-09 |
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Granted publication date: 20100609 Termination date: 20181026 |