CN209543801U - LED display screen - Google Patents
LED display screen Download PDFInfo
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- CN209543801U CN209543801U CN201920061902.4U CN201920061902U CN209543801U CN 209543801 U CN209543801 U CN 209543801U CN 201920061902 U CN201920061902 U CN 201920061902U CN 209543801 U CN209543801 U CN 209543801U
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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
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- 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
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Abstract
A kind of LED display screen, comprising: mainboard, mainboard include the pixel unit of multiple array distributions；Each pixel unit includes the support plate connecting with mainboard and reflection component；The side of the support plate is equipped with the LED light-emitting component for lateral emitting, and the reflection component side opposite with the LED light-emitting component is equipped with reflecting surface；It is projected after the reflective surface that the light that the LED light-emitting component issues passes through the opposite reflection component.The utility model passes through the LED light-emitting component and reflection component of lateral emitting, so that whole light that the LED of lateral emitting is issued all pass through the reflecting surface being arranged on reflection component and project after one or many reflections, so that the distribution of light beam is more consistent, the color homogeneity of LED display screen is significantly improved.
Description
Technical field
The utility model relates to a kind of LED display screens, belong to LED display screen manufacturing technology field.
Background technique
LED display screen has many advantages, such as high brightness, high contrast and energy conservation, with the continuous maturation of the relevant technologies,
Application field and scale also constantly increase.Some manufacturers have launched LED matrix display screen high quality image, example is presented
Such as: the Cinema LED Screen of Samsung and the Crystal display screen of Sony.LED large screen display has progressed into high-quality
Video projection field is measured, and with the continuous maturation of technology, gradually can satisfy 100 cun or more indoor displays or even cinemas are seen
The demand of shadow, it is contemplated that the application scenarios of LED large screen display can constantly expand.
However, LED large screen display at present there is also some problems.LED display is entire to draw when showing high definition image
Face can clearly be observed that each pixel, affect viewing effect.This be LED low light filling rate and big spacing it is common
It is caused.Such as: since the luminous intensity of LED lamp bead is very high, for by gathering the display screen that LED lamp bead is formed,
Light on each LED lamp bead (being equivalent to a pixel) excessively concentrates in centrally located LED lamp bead, and adjacent LED
Spacing it is too big relative to LED lamp bead itself so that the light filling rate of pixel is very low, when causing viewing, granular sensation is not significantly
Good viewing experience.
Fig. 1 a and Fig. 1 b are respectively the light intensity pixelation distribution schematic diagram of one-dimensional LED array.As shown in Figure 1a, for pixel
For point, since brightness concentrates on central area, peak luminescence intensity can be projected on human eye retina, to cause human eye not
It is suitable.Reduce the viewing experience that can alleviate pixelation under LED spacing to human eye resolution size to a certain extent, but can pole
The earth increases product cost；And increase LED light-emitting area and not only increase energy consumption, also increase the difficulty of encapsulation.
As shown in Figure 1 b, optical diffusion K is arranged before LED array S, can be effectively averaged in each pixel region
Light distribution is equivalent to the light intensity that optical diffusion is emitted LED array and redistributes, so that optical diffusion outgoing
For light as the secondary souce after redistribution, the light being imaged in human eye at this time is the secondary souce after optical diffusion film is average
Light distribution, it is clear that the filling rate of the light distribution after optical diffusion is average is greater than the light that LED is directly emitted
The filling rate being distributed by force, therefore can solve the problems, such as viewing granular sensation.But optical diffusion is good to the redistribution effect of light
Bad is related with the distance of the distance between LED matrix with optical diffusion, it may be assumed that between optical diffusion and LED matrix away from
From bigger, optical diffusion is better to the average effect of light (early period is that optical diffusion does not bring optical crosstalk problem), filling rate
Higher, therefore, when realizing that the display of preferable filling rate requires, the spacing between optical diffusion and LED matrix is excessive, causes
The thickness of LED display screen is larger, is unfavorable for lightening development trend.
Utility model content
The technical problem to be solved by the utility model is in view of the deficiencies of the prior art, provide a kind of LED display
Curtain, by the LED light-emitting component and reflection component of lateral emitting, so that whole light that the LED light-emitting component of side is issued
All pass through the reflecting surface being arranged on reflection component directive spectators after one or many reflections, so that the distribution of light beam
It is more consistent, significantly improve the color homogeneity of LED display screen.
Technical problem to be solved in the utility model is achieved by the following technical solution:
A kind of LED display screen, comprising: mainboard, the mainboard include the pixel unit of multiple array distributions；It is each described
Pixel unit includes the support plate connecting with the mainboard and reflection component；The side of the support plate, which is equipped with, is used for lateral emitting
LED light-emitting component, the reflection component side opposite with the LED light-emitting component be equipped with reflecting surface；The LED shines first
It is projected after the reflective surface that the light that part issues passes through the opposite reflection component.
According to practical structures needs, the reflecting surface of the reflection component is paraboloid, curved surface or 45 ° of inclined-planes.
Further, the side of the support plate is equipped with groove, and the LED light-emitting component setting is in the groove.
In order to increase the order of reflection of light, the surface of the groove be equipped with for the emergent light to LED light-emitting component into
The light reflecting material of row reflection.
Light is directly emitted in order to prevent, and the support plate further includes having for outgoing above the LED light-emitting component
The catoptric arrangement that is reflected of high angle scattered light, the catoptric arrangement and the LED light-emitting component are arranged in the support plate
The same side, the top of the LED light-emitting component is arranged in the catoptric arrangement.
In addition, the catoptric arrangement is equipped with light reflecting material, the reflection in face of a side surface of the LED light-emitting component
Structural plane is equipped with light absorbing material to a side surface of light-emitting surface.
In order to reduce the light being directly emitted, the LED light-emitting component is set to the support plate side close to the master
One end of plate.
Further, other regions that the outer surface of the support plate removes except the LED light-emitting component position are all set
There is reflecting material.
Further, the mainboard is equipped with reflecting material in face of the surface of light-emitting surface.
It further include being set to the LED display screen to go out light to increase the effective area and angle uniformity of LED pixel
The diffusion barrier in face.
Under normal conditions, the LED light-emitting component includes red, green and blue LED luminescence chip；Alternatively, the LED
Light-emitting component include for being emitted the LED luminescence chip of blue light, blue LED die and wavelength conversion material for being emitted green light
And blue LED die and wavelength conversion material for being emitted feux rouges.
In conclusion the utility model provides a kind of LED display screen, by the LED light-emitting component of lateral emitting and anti-
Component is penetrated, so that whole light that the LED of lateral emitting is issued all pass through the reflecting surface being arranged on reflection component by one
Directive spectators after secondary or multiple reflections, so that the distribution of light beam is more consistent, the color for significantly improving LED display screen is equal
Even property.
In the following with reference to the drawings and specific embodiments, the technical solution of the utility model is described in detail.
Detailed description of the invention
Fig. 1 a and Fig. 1 b are respectively the light intensity pixelation distribution schematic diagram of one-dimensional LED array；
Fig. 2 is the partial schematic diagram of the LED display screen of the utility model embodiment one；
Fig. 3 is two support plate partial structural diagram of the utility model embodiment；
Fig. 4 is the partial schematic diagram of the LED display screen of the utility model embodiment two；
Fig. 5 is the partial schematic diagram of the LED display screen of the utility model embodiment three；
Fig. 6 is the partial schematic diagram of the LED display screen of the utility model embodiment four；
Fig. 7 is the structural representation of the utility model reflection component and support plate；
Fig. 8 is the utility model reflection component structural schematic diagram；
Fig. 9 is the partial schematic diagram of the LED display screen of the utility model embodiment five；
Figure 10 is the partial schematic diagram of the LED display screen of the utility model embodiment six；
Figure 11 is that there is the utility model the LED display screen pixel illumination of paraboloid structure reflection component to be distributed signal
Figure.
Specific embodiment
The technical problem to be solved by the utility model is in view of the deficiencies of the prior art, provide a kind of LED display
Curtain, by the LED light-emitting component and reflection component of lateral emitting, so that whole light that the LED of lateral emitting is issued are all logical
The reflecting surface being arranged on reflection component directive spectators after one or many reflections are crossed, so that the distribution of light beam is more
Unanimously, the color homogeneity of LED display screen is significantly improved.
On the whole, the utility model provides a kind of LED display screen, comprising: mainboard, the mainboard include multiple arrays
The pixel unit of distribution.Each pixel unit includes the support plate being electrically connected with the mainboard and reflection component；One
The side of the support plate of the pixel unit is equipped with the LED light-emitting component for lateral emitting, another adjacent described pixel
The reflection component of the unit side opposite with the LED light-emitting component is equipped with reflecting surface；What the LED light-emitting component issued
It is projected after the reflective surface that light passes through the opposite reflection component.
In following different embodiment, the reflection component is by way of bonding and the support plate of adjacent pixel unit
Side connection；Alternatively, the support plate of the reflection component and adjacent pixel unit is integrally formed.Due to support plate and adjacent picture
The reflection component of plain unit connects, therefore the structural relation of support plate and reflection component for convenience of explanation, subsequent by support plate
It is illustrated with the reflection component of adjacent pixel unit as an entirety；The support plate can be neat with the bottom surface of reflection component
Flat, the two is directly connected with the mainboard simultaneously, and has the contact point connected with lead on mainboard；Alternatively, the support plate
It can not be flushed with the bottom surface of reflection component, the bottom surface of the reflection component is connected directly with the mainboard, and support plate bottom is pre-
There are contact solder joint, support plate is connected by contact solder joint and lead.In order to increase the effective area and even angle of LED pixel
Property, the continuity of pixel is improved, is additionally provided with diffusion barrier above the reflection component.
Wherein since the bottom surface of reflection component is much larger than the bottom surface of support plate, fixation is mainly played in the bottom surface of reflection component
The effect of LED light-emitting component；When the bottom surface of support plate and reflection component is uneven flat, reflection component is connected by bottom surface and mainboard
It connects, the bottom surface of support plate position corresponding with mainboard is provided with electrical pickoff, and the lead and mainboard for LED light-emitting component are realized
Electrical connection as noted previously, as the bottom surface of reflection component is much larger than the bottom surface of support plate, therefore is connect in reflection component with mainboard
When, the effect of fixed LED light-emitting component equally may be implemented.In addition the mainboard surface setting opposite with reflection component and support plate
Reflecting material or light absorbent, for incident light to be reflected or absorbed；The advantage of mainboard surface setting reflecting material
It is that the light utilization to LED light-emitting component can be increased, but equally also will increase the reflection to environment light, so that LED display screen
Contrast decline；The advantage that light absorbent is arranged is that the absorption to environment light can be increased, and further increases LED display screen
Contrast, but equally also can the large angle side light-emitting line to LED light-emitting component absorb, reduce LED light-emitting component
Light utilization efficiency.
Reflecting surface is arranged except other regions of LED light-emitting component in the first side of the support plate, for through reflecting part
The light of the reflective surface of part carries out secondary reflection, and the LED light-emitting component passes through a lead and circuit board (not shown go out)
Connection, the lead can be set in the inside of support plate, also can be set on the surface of support plate, the lead can be one
Item is also possible to a plurality of；The support plate can be existing insulation board or the circuit board of electrically conductive side placement.The lead
End and LED display screen mainboard connect, for LED light-emitting component provide electrical modulation.
The reflecting surface of the reflection component can be paraboloid, inclined-plane or other curved-surface structures, specific reflecting surface structure
Depending on LED light-emitting component is in the lateral location of support plate.
The LED light-emitting component can be include a kind of primary lights LED light-emitting component, be also possible to include three bases
The LED light-emitting component of coloured light, in a variant embodiment, LED light-emitting component be also possible to include a kind of primary lights LED
The light-emitting component of light-emitting component and wavelength conversion material.
The LED light-emitting component is composed of multiple chip units, and red, green and indigo plant are equipped in the chip unit
Color three-primary color LED light-emitting component, it is, of course, also possible to be equipped with white light LEDs light-emitting component.In addition, LED light-emitting component arrangement mode is simultaneously
It is not limited to the "-" type arrangement of tri- pixels of RGB, it is different with setting quantity according to the color of LED light-emitting component, it can be in core
The structure of trisection or the quartering is taken in blade unit, in order to prevent interfering with each other between the LED light-emitting component of different colours,
Partition is also set between adjacent chip, and partition is made of opaque material.In addition, chip unit can also include by blue light
The red or green LEDs element that LED light-emitting component, corresponding wavelength conversion material and optical filter are constituted.Further, core
The specific structure of blade unit is not limited to the LED light-emitting component of red, green and blue three primary colours, and being also possible to three chips is all blue light
LED light-emitting component, wherein the implementation of red (green) be BLUE LED emissions element and be covered on above blue light to feux rouges
(green light) wavelength conversion material, and it is placed with above LED light-emitting component the optical filter of red (green).It is different in order to prevent
Barn door can be arranged in light crosstalk between LED light-emitting component between adjacent LED light-emitting component, at this time barn door, reflection
The light that LED light-emitting component is emitted is limited in a regional space by the reflecting surface and support plate of component, only allow light from
The outlet outgoing of corresponding viewer side.Reduce optical crosstalk on the basis of increasing and being emitted optical uniformity.
The technical solution of the utility model is described in detail below by way of specific embodiment.
Embodiment one
Fig. 2 is the partial schematic diagram of the LED display screen of the utility model embodiment one.As shown in Fig. 2, the utility model
A kind of LED display screen, including mainboard 700 are provided, the mainboard 700 includes the pixel unit of multiple array distributions, Mei Gesuo
Stating pixel unit includes the support plate 100 being electrically connected with the mainboard 700 and reflection component 500.In the multiple of array distribution
In pixel unit, the side of the support plate 100 of one of them pixel unit is equipped with the LED light-emitting component for lateral emitting
200, the reflection component 500 of another the adjacent pixel unit side opposite with LED light-emitting component 200 is equipped with reflecting surface
510.The light that the LED light-emitting component 200 issues is reflected by the reflecting surface 510 of the opposite reflection component 500
After project.
As shown in Figure 2 it is found that in the present embodiment, support plate 100 bonds together with reflection component 500, and support plate
100 is concordant with the bottom surface of reflection component 500, and the bottom surface of the two is connect with mainboard 700 simultaneously.The LED display screen further includes
One end of lead 300, the lead 300 is connect with LED light-emitting component 200, the mainboard 700 of other end and LED display screen
Connection, for realizing the electrical connection of LED light-emitting component.LED light-emitting component 200 is fixed on the surface of support plate 100,
The middle position of 100 outer surface of support plate is arranged in LED light-emitting component 200, and the side of support plate 100 is in addition to LED light-emitting component
Other regions be arranged reflecting surface.It is arranged on reflection component in order to which the whole light for issuing LED light-emitting component all pass through
Reflecting surface projected after one or many reflections, the outer surface of the support plate removes the LED light-emitting component and position is arranged
Other regions except setting are designed with reflecting surface；The outer surface of the mainboard is equipped with reflecting surface.
It is illustrated below by even light effect of the specific light propagation path to the utility model, as shown in Fig. 2, aobvious
Show the LED light-emitting component that mainboard 700 is equipped with the pixel unit of multiple array distributions, in the pixel unit in diagram left side
The 200 side light issued, reflect on the reflecting surface 510 of the reflection component 500 in pixel unit adjacent thereto
After project.As shown in connection with fig. 2, directive support plate 100 after light L1 is reflected by the reflecting surface 510 of adjacent reflection component 500
Reflecting surface, the directive spectators after the reflective surface of support plate 100, light at this time is emitted after two secondary reflections
's；The reflection of directive selve support plate 100 after the reflective surface that light L2 passes through the reflection component 500 of adjacent pixel unit
Face, by after the reflective surface of selve support plate 100 again directive adjacent pixel unit reflection component 500 reflecting surface, then
The secondary directive spectators after reflective surface, light at this time are emitted after triple reflection；Light L3 only passes through adjacent pixel
Directive spectators after the reflective surface of the reflection component of unit；Directive adjacent pixel list after the reflection that light L4 passes through mainboard 700
The reflecting surface of the reflection component 500 of member, passes through directive spectators after reflective surface.It is appreciated that the LED due to lateral emitting is sent out
Whole light that light unit is issued are required in reflection component or support plate reflecting surface by one or many reflections, reflecting part
The reflecting surface and support plate reflecting surface of part surround region and are equivalent to an optical integral rod, carry out to the light of LED light-emitting component even
Light, therefore can significantly improve the color homogeneity of LED display screen.
Since the side of support plate 100 is arranged in LED light-emitting component, LED light-emitting component at this time is lateral emitting, i.e.,
The light of LED light-emitting component mostly to be emitted towards the direction of support plate side, hang down by the FPD LED light of non-existing technology
Straight outgoing upwards.It should be noted that LED light-emitting component at this time can be include a kind of primary lights LED light-emitting component,
Be also possible to include three primary colours light LED light-emitting component, in a variant embodiment, LED light-emitting component is also possible to wrap
The light-emitting component of LED light-emitting component and wavelength conversion material containing a kind of primary lights.It includes parabolic that reflection component 500, which is one,
The surface of emission of face structure, the parabolic reflector are used to reflect the light of adjacent LED light-emitting component side outgoing.
That is, in general, the LED light-emitting component is composed of multiple chip units, the chip
Red, green and blue three-primary color LED light-emitting component is equipped in unit, it is, of course, also possible to be equipped with white light LEDs light-emitting component.Separately
Outside, LED light-emitting component arrangement mode is not limited to the "-" type arrangement of tri- pixels of RGB, according to the color of LED light-emitting component
It is different with setting quantity, the structure of trisection or the quartering can be taken in chip unit, in order to prevent the LED of different colours
Interfering with each other between light-emitting component, is also arranged partition between adjacent chip, and partition is made of opaque material.In addition,
Chip unit can also include be made of blue-ray LED light-emitting component, corresponding wavelength conversion material and optical filter it is red or green
Color LED light-emitting component.Further, the specific structure of chip unit is not limited to the LED light-emitting component of red, green and blue three primary colours,
Being also possible to three chips is all blue-ray LED light-emitting component, wherein the implementation of red (green) is BLUE LED emissions element
Be covered on the blue light of top to feux rouges (green light) wavelength conversion material, and it is (green to be placed with above LED light-emitting component red
Color) optical filter.Light crosstalk between different LED light-emitting components in order to prevent, can set between adjacent LED light-emitting component
Barn door is set, the light that LED light-emitting component is emitted is limited in one by barn door, the reflecting surface of reflection component and support plate at this time
In regional space, light is only allowed to be emitted from the outlet of corresponding viewer side.Reduce on the basis of increasing and being emitted optical uniformity
Optical crosstalk.
Embodiment two
Fig. 3 is two support plate partial structural diagram of the utility model embodiment.As shown in figure 3, LED light-emitting component 200
It can be set on the surface of support plate 100, can also be arranged in such a way that support plate 100 digs groove 800 by groove 800
In the inside of support plate 100, but depth when being arranged in internal in insertion support plate 100 needs to cooperate and considers that light extraction efficiency carries out
Setting.As shown in figure 3, the groove 800 being provided in support plate 100 be it is horn-like, certainly, those skilled in the art can also root
The shape of groove 800 is selected according to actual needs, such as: it can also be rectangular, rectangle, rotary table or sector etc..With recessed
For slot is horn-like, horn-like groove surfaces are formed with light reflecting material, for reflecting incident light, below
Illustrate the effect that embedded groove is set；In the light beam that the side-emitting LED light-emitting component of embodiment one occurs first, upper side
Part high angle scattered light is directly emitted without being emitted after the reflective surface of reflection component, and the light being directly emitted is simultaneously
Even light is not carried out by the reflection of reflecting surface, therefore will affect the uniformity of emergent light；And the LED light-emitting component of embodiment two
Insertion design, can very good solution high angle scattered light the problem of being directly emitted, the big angle of the LED light-emitting component outgoing of embodiment two
It spends light to be emitted after the reflecting material reflection of groove surfaces by the reflecting surface of reflection component 500, so that LED light-emitting component goes out
All light penetrated all by even light outgoing at least once, can further promote the optical uniformity of LED display.
Fig. 4 is the partial schematic diagram of the LED display screen of the utility model embodiment two.It can as shown in Fig. 4 and comparative diagram 2
Know, in the present embodiment, other than set-up mode of the LED light-emitting component 200 in support plate and embodiment one are different,
The bottom of both support plate 100 and reflection components 500 be it is mutually not concordant, reflection component is connected directly with mainboard 700, is supported
Contact solder joint is reserved between the bottom and mainboard 700 of plate 100, support plate is connected by contact solder joint and lead 300.
As shown in figure 4, light L5, L6 and L7 for being issued by LED light-emitting component 200, pass through adjacent reflection component respectively
500 and support plate 100 one or many reflections after project.Wherein light L5 have passed through two secondary reflections of reflection component, L6 only
It has passed through the primary event of reflection component, L7 then have passed through each primary event of reflection component and support plate respectively.
Embodiment three
Fig. 5 is the partial schematic diagram of the LED display screen of the utility model embodiment three.As shown in figure 5, being adjacent two
A pixel unit is launched when LED light-emitting component 200 is disposed therein the middle part of support plate 100 of a pixel unit
Light La be directly emitted along the top of the support plate 100 of adjacent pixel unit, not pass through any reflection, will lead to even
Light effect is bad.And another LED light-emitting component in Fig. 5 is then positioned close to the position of 100 bottom of support plate, with light
The identical light Lb of the shooting angle of La, since setting position of the LED light-emitting component in support plate 100 reduces, light
Line Lb occurs to reflect and then is emitted on the reflecting surface of reflection component.So, by increasing the order of reflection of light,
The optical uniformity of LED display can further be promoted.
Example IV
Fig. 6 is the partial schematic diagram of the LED display screen of the utility model embodiment four.As shown in fig. 6, in the present embodiment
In, reflection component 500 is using 45 ° of reflecting surface, the reflecting surface integrative packaging of LED light-emitting component 200 and 45 °, reflection
Face is welded or separately installed together with LED element.Due to the reflecting surface for 45 °, the reflection direction of light can be with the even light of cambered surface
Cup different from.But the reflection direction regardless of light, the light launched from LED light-emitting component 200 are all by one
It is emitted again after secondary or multiple reflection to spectators.As shown in fig. 6, light L13 and L14, respectively from LED light-emitting component 200
Outgoing, by reflecting surface and support plate twice with projected after primary event.Even light, energy are carried out to the light of LED light-emitting component
Enough significantly improve the color homogeneity of LED display screen.
Embodiment five
Fig. 7 is the partial schematic diagram of the LED display screen of the utility model embodiment five.As shown in fig. 7, the present embodiment is
Improvement structure on that basi of the above embodiments, specifically, be on the basis of aforementioned four embodiment and its distressed structure,
Increase catoptric arrangement 900.By in the light reflection path in four embodiments above-mentioned it is found that the upper side of LED light-emitting component
Part wide-angle emergent ray, without reflection component reflection or by primary event be emitted, this will lead to even light effect
It is bad.In view of the above-mentioned problems, catoptric arrangement 900, catoptric arrangement is arranged in going out for LED light-emitting component 200 in the present embodiment on the upside of light
900 height is best to block the light being directly emitted completely.As shown in connection with fig. 7, catoptric arrangement 900 can prevent the angle of emergence
Light of the degree greater than L15 is directly emitted, and can change propagation and the reflection direction of light by the reflection of catoptric arrangement 900, such as
Light L16 in Fig. 7 under the reflex of catoptric arrangement 900, and passes through adjacent reflection component, the support of itself respectively
Plate, adjacent reflection component go out to be shot out after four secondary reflections, and light passes through multiple reflection, increase LED display
Optical uniformity.
It should be noted that catoptric arrangement 900 is provided with light reflecting material in face of a side surface face of LED light-emitting component,
For reflecting incident light, catoptric arrangement is back to a side surface of LED light-emitting component, i.e., catoptric arrangement is in face of going out light
One side surface in face is provided with light absorbing material, for absorbing to incident environment light, to improve pair of LED display screen
Degree of ratio.
Embodiment six
Fig. 8 is the partial schematic diagram of the LED display screen of the utility model embodiment six.As shown in figure 8, in the present embodiment
In, the support plate 100 and 500 integrative packaging of reflection component.In order to increase the effective area and even angle of LED pixel
Property, the continuity of pixel is improved, diffusion barrier 600 is additionally provided with above the reflection component.The surface or inside of diffusion barrier 600 are set
Light scattering particles or other microstructures are equipped with, such as the rough surface that obtains after frosted processing, increase LED pixel can
Apparent area and angle uniformity improve the continuity of pixel.It should be noted that diffusion barrier is not limited solely in the present embodiment
Middle use is equally applicable to the above embodiments one to embodiment five, and it is positioned at the top of reflection component that position, which is arranged, all.
As shown in figure 8, lead 300 is connected with pin 400, pin 400 is weldingly fixed on the support plate by pad 410
On 100 welding layer 110, welding layer 110 includes the pad for fixing LED component.The pin 400 is arranged in the reflection
The lower section of component.In addition, the absorbed layer 420 of black is coated on the vertical plane of the pin 400 except light emitting region.Due to encapsulation
Vertical plane (i.e. LED where plane) and encapsulating material use Darkening process, therefore, for environment light, into display
After pixel unit, reflected light can be by melanism Surface absorption, and even reflector face is using high reflectance even mirror surface, also not
Spectators can be had an impact and influence contrast.In addition, the vertical welding that pin had both played counterweight effect, kept LED light-emitting component
Connect with the stability in process engineering, while also burying under reflection component, will not reflection environment light shadow is generated to contrast
It rings.
The process of the present embodiment is such that for LED light-emitting component 200 to be welded on lead 300, and from support
The same side of plate 100 draws and is connected with pin 400, makes between the lead 300 and pin 400 in 90 ° of angles；It will welding
LED light-emitting component 200 and reflection component afterwards, it may be assumed that the combination installation of reflection component 500, and pin 400 is embedded in reflection component
500 lower section.In order to guarantee the uniformity of product, the combination installation includes integrative packaging.In addition, the vertical pins and
Catoptric arrangement is in the welding process of side-emitting LED, for keeping gravity balance.
It is further to note that reflection component 500 and support plate 100 can be with integrative packagings.That is, LED is sent out
Optical element 200 and even light cup integrative packaging, the two are placed on pad simultaneously by Reflow Soldering, and even light cup improves perpendicular when welding
The stability directly placed, precision guarantee by PCB design precision and reflow soldering process, and the counterweight mode that Fang Guang matches enables device can be with
It stands on PCB and through process challenge side.Meanwhile reflection component can also be directly anchored to the welding layer 110 of support plate 100
On, it is spaced between the installation site of the two not with 100 integrative packaging of support plate.That is, LED element
First welding is completed, and the later period is combined with even light cup again, and light cup has relatively thin upper wall to promote filling rate.
Fig. 9 is the structural representation of the utility model reflection component and support plate.As shown in figure 9, in the present embodiment, reflection
Component 500 is even light cup, and the edge shape of even light cup in z-direction is parabola, is formed by three-dimensional shape in X and Y-direction
On be face directly, and in z-direction be curved surface, on curved surface be equipped with reflecting surface.The light issued from LED light-emitting component 200
L11 and L12, respectively by being emitted after the reflection of adjacent reflection component and the support plate of itself.
Figure 10 is the utility model reflection component structural schematic diagram.Even light cup as shown in Figure 10 is structure base shown in Fig. 6
Improvement on plinth, the two the difference is that, shape of the even light cup shown in Fig. 7 in X-direction and Z-direction is parabola.It adopts
With above structure, the reflection angle of light can be made more various.
Figure 11 is the LED display pixel illumination distribution schematic diagram that the utility model has paraboloid structure reflection component.
As shown in Figure 11, the light-emitting component of the LED to be shone when LED display using side, and the light warp of the LED outgoing of LFA display screen
Intensity of illumination distribution uniformity after reflection component reflection outgoing is greatly improved, and pixel filling rate is close to 100%, and chip
Luminous intensity homogeneity is greatly improved, the granular sensation of very good solution display picture.
In conclusion the utility model provides a kind of LED display screen, by the LED light-emitting component of lateral emitting and anti-
Component is penetrated, so that whole light that the LED of lateral emitting is issued all pass through the reflecting surface being arranged on reflection component by one
Directive spectators after secondary or multiple reflections, so that the distribution of light beam is more consistent, the color for significantly improving LED display screen is equal
Even property.
Claims (11)
1. a kind of LED display screen, comprising:
Mainboard, the mainboard include the pixel unit of multiple array distributions；
It is characterized in that, each pixel unit includes the support plate connecting with the mainboard and reflection component；
The side of the support plate is equipped with the LED light-emitting component for lateral emitting, and the reflection component and the LED shine first
The opposite side of part is equipped with reflecting surface；
It is projected after the reflective surface that the light that the LED light-emitting component issues passes through the opposite reflection component.
2. LED display screen as described in claim 1, which is characterized in that the reflecting surface of the reflection component is paraboloid, song
Face or 45 ° of inclined-planes.
3. LED display screen as claimed in claim 1 or 2, which is characterized in that the side of the support plate is equipped with groove, institute
State LED light-emitting component setting in the groove.
4. LED display screen as claimed in claim 3, which is characterized in that the surface of the groove is equipped with for shining to LED
The light reflecting material that the emergent light of element is reflected.
5. LED display screen as claimed in claim 1 or 2, which is characterized in that the support plate further includes having for described
The catoptric arrangement that the high angle scattered light being emitted above LED light-emitting component is reflected, the catoptric arrangement and the LED shine first
The same side of the support plate is arranged in part, and the top of the LED light-emitting component is arranged in the catoptric arrangement.
6. LED display screen as claimed in claim 5, which is characterized in that the catoptric arrangement faces the LED light-emitting component
A side surface be equipped with light reflecting material, the catoptric arrangement in face of light-emitting surface a side surface be equipped with light absorbing material.
7. LED display screen as claimed in claim 1 or 2, which is characterized in that the LED light-emitting component is set to the branch
Fagging side is close to one end of the mainboard.
8. LED display screen as described in claim 1, which is characterized in that the outer surface of the support plate removes the LED hair
Other regions except optical element position are designed with reflecting material.
9. LED display screen as described in claim 1, which is characterized in that the mainboard is equipped with anti-in face of the surface of light-emitting surface
Penetrate material.
10. LED display screen as described in claim 1, which is characterized in that further include being set to the LED display screen to go out
The diffusion barrier of smooth surface.
11. LED display screen as described in claim 1, which is characterized in that the LED light-emitting component include red, green and
BLUE LED emissions chip；
Alternatively, the LED light-emitting component include for being emitted the LED luminescence chip of blue light, the blue led core for being emitted green light
Piece and wavelength conversion material and blue LED die and wavelength conversion material for being emitted feux rouges.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920061902.4U CN209543801U (en) | 2019-01-15 | 2019-01-15 | LED display screen |
| PCT/CN2019/127267 WO2020147517A1 (en) | 2019-01-15 | 2019-12-23 | Led display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920061902.4U CN209543801U (en) | 2019-01-15 | 2019-01-15 | LED display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209543801U true CN209543801U (en) | 2019-10-25 |
Family
ID=68269775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920061902.4U Active CN209543801U (en) | 2019-01-15 | 2019-01-15 | LED display screen |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN209543801U (en) |
| WO (1) | WO2020147517A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020147517A1 (en) * | 2019-01-15 | 2020-07-23 | 深圳光峰科技股份有限公司 | Led display screen |
| CN112968141A (en) * | 2021-03-01 | 2021-06-15 | 维沃移动通信有限公司 | Display module, electronic equipment and manufacturing method of display module |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2397875A3 (en) * | 2001-12-14 | 2012-05-02 | QUALCOMM MEMS Technologies, Inc. | Uniform illumination system |
| JP4088932B2 (en) * | 2003-12-05 | 2008-05-21 | 三菱電機株式会社 | Light emitting device and lighting apparatus using the same |
| CN201475893U (en) * | 2009-08-28 | 2010-05-19 | 康佳集团股份有限公司 | Splicable light guide plate and backlight device |
| CN201716944U (en) * | 2009-12-15 | 2011-01-19 | 康佳集团股份有限公司 | Led display device and television |
| CN202650459U (en) * | 2012-06-12 | 2013-01-02 | 深圳市大盛光电科技有限公司 | Energy-saving condensing light-emitting diode (LED) display screen |
| CN203179432U (en) * | 2013-04-17 | 2013-09-04 | 长春希达电子技术有限公司 | Full-color LED (Light Emitting Diode) display module with high image fill ratio |
| CN209543801U (en) * | 2019-01-15 | 2019-10-25 | 深圳光峰科技股份有限公司 | LED display screen |
-
2019
- 2019-01-15 CN CN201920061902.4U patent/CN209543801U/en active Active
- 2019-12-23 WO PCT/CN2019/127267 patent/WO2020147517A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020147517A1 (en) * | 2019-01-15 | 2020-07-23 | 深圳光峰科技股份有限公司 | Led display screen |
| CN112968141A (en) * | 2021-03-01 | 2021-06-15 | 维沃移动通信有限公司 | Display module, electronic equipment and manufacturing method of display module |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020147517A1 (en) | 2020-07-23 |
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