CN109118953A - A kind of down straight aphototropism mode set - Google Patents
A kind of down straight aphototropism mode set Download PDFInfo
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- CN109118953A CN109118953A CN201810827570.6A CN201810827570A CN109118953A CN 109118953 A CN109118953 A CN 109118953A CN 201810827570 A CN201810827570 A CN 201810827570A CN 109118953 A CN109118953 A CN 109118953A
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- 230000005142 aphototropism Effects 0.000 title claims abstract description 30
- 239000011324 bead Substances 0.000 claims abstract description 106
- 239000000758 substrate Substances 0.000 claims abstract description 38
- 230000000694 effects Effects 0.000 abstract description 8
- 238000003780 insertion Methods 0.000 abstract description 3
- 230000037431 insertion Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000003760 hair shine Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000011514 reflex Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Planar Illumination Modules (AREA)
Abstract
The embodiment of the invention provides a kind of down straight aphototropism mode sets, are related to display screen technology field.The down straight aphototropism mode set may include diffuser plate and lamp bar, lamp bar is located at the side of the incidence surface of diffuser plate, lamp bar includes substrate, multiple CSP lamp beads, and lens corresponding with CSP lamp bead, multiple grooves are provided on substrate, and groove includes bottom and side wall, CSP lamp bead is located at the bottom of groove, the side wall of groove is reflecting surface, and CSP lamp bead and corresponding groove are located at the incident side of corresponding lens, and CSP lamp bead is electrically connected with substrate.In embodiments of the present invention, CSP lamp bead is located at the bottom of groove, it that is to say in CSP lamp bead insertion groove, to which recess sidewall can block the light of CSP lamp bead side sending, make the light that can not project the gap between lamp bar and lens, it so, it is possible to reduce the stray light that display screen is generated in display, and then improve display effect.
Description
Technical field
The present invention relates to display screen technology fields, more particularly to a kind of down straight aphototropism mode set.
Background technique
LED (the Light of CSP lamp bead namely a kind of chip size packages (Chip Scale Package, abbreviation CSP)
Emitting Diode, light emitting diode) light source, package dimension and LED chip kernel size are essentially identical.CSP lamp bead is removed
Outside welding surface, remaining five face can shine, and light-emitting surface only has chip size size.Compared to the LED lamp bead of conventional package,
CSP lamp bead light extraction efficiency is higher, and resistive properties are more preferably.
However, in practical applications, down straight aphototropism mode set uses the lamp bar including CSP lamp bead as directly-down light source
When, due to the feature that five face of CSP lamp bead shines, light emitting angle is close to 180 degree, and the light that CSP lamp bead side wall issues can not
Into effective incidence surface of lens, the gap between lamp bar and lens is projected, so that display screen, in display, light can quilt
Other devices on CSP lamp bead periphery reflex to display panel, and then in display, display area will generate serious stray light,
To influence display effect.
Summary of the invention
In view of the above problems, the downward back that the embodiment of the present invention at least overcomes the above problem in order to provide one kind is proposed
Optical mode group, to solve gap light leakage of the CSP lamp bead between lamp bar and lens, to generate serious stray light in display
Problem.
According to the first aspect of the invention, a kind of down straight aphototropism mode set, including diffuser plate and lamp bar, the lamp are provided
Item is located at the side of the incidence surface of the diffuser plate, and the lamp bar includes substrate, multiple CSP lamp beads, and with the CSP lamp bead
Corresponding lens are provided with multiple grooves on the substrate, and the groove includes bottom and side wall, and the CSP lamp bead is located at institute
The bottom of groove is stated, the side wall of the groove is reflecting surface, and the CSP lamp bead and corresponding groove are located at corresponding lens
Incident side, the CSP lamp bead are electrically connected with the substrate.
Optionally, the depth of the groove is greater than the thickness of the CSP lamp bead.
Optionally, the opening width R of the groove in the target direction2Meet following formula (1), the target direction is flat
Row is in the incidence surface of the diffuser plate；
Wherein, in above-mentioned formula (1), the L is the depth of the groove, and the h is the thickness of the CSP lamp bead,
The H is width of the incidence surface of the lens on the target direction, and the p is the incidence surface and the base of the lens
Minimum range between plate, the k are maximum outside diameter of the CSP lamp bead on the target direction.
Optionally, the opening width of the groove in the target direction is greater than bottom of the groove on the target direction
Face width, the target direction are parallel to the incidence surface of the diffuser plate.
Optionally, the bottom width R of the groove in the target direction1Meet following formula (2), the target direction is flat
Row is in the incidence surface of the diffuser plate；
R1≤R2-3.464·L (2)
Wherein, in above-mentioned formula (2), the R2For opening width of the groove on the target direction, the L
For the depth of the groove.
Optionally, the bottom of the groove is reflecting surface.
Optionally, the groove is rounded on objective plane, and what the objective plane was parallel to the diffuser plate enters light
Face.
Optionally, non-incidence surface of the lens far from the diffuser plate side is Nian Jie with ring support, and the lens are logical
It is Nian Jie with the non-recessed region of the substrate to cross the ring support.
Optionally, the lens are provided with the prominent structure of annular far from the non-incidence surface of the diffuser plate side, described
Mirror is Nian Jie with the non-recessed region of the substrate by the prominent structure of the annular.
Optionally, the side wall of the groove is flat sidewall or cambered surface side wall.
The embodiment of the present invention includes following advantages:
In embodiments of the present invention, down straight aphototropism mode set includes the lamp bar of diffuser plate and straight-down negative, the substrate in lamp bar
On be provided with multiple grooves, the CSP lamp bead in lamp bar is in the grooves.Wherein, groove includes bottom and side wall, CSP lamp bead position
In the bottom of groove, that is to say in CSP lamp bead insertion groove, so that recess sidewall can block the light of CSP lamp bead side sending
Line makes the light that can not project the gap between lamp bar and lens, so, it is possible reduce display screen display when generate it is spuious
Light, and then improve display effect.
Detailed description of the invention
Fig. 1 is a kind of diagrammatic cross-section of down straight aphototropism mode set provided in an embodiment of the present invention；
Fig. 2 is a kind of diagrammatic cross-section of lamp bar provided in an embodiment of the present invention；
Fig. 3 is the partial schematic diagram that a kind of CSP lamp bead provided in an embodiment of the present invention is set in groove；
Fig. 4 is the schematic diagram that a kind of CSP lamp bead provided in an embodiment of the present invention is set in groove；
Fig. 5 is that a kind of side wall of groove provided in an embodiment of the present invention is the diagrammatic cross-section of cambered surface side wall.
Description of symbols:
10- diffuser plate, 20- lamp bar, 21- substrate, 211- groove, 22-CSP lamp bead, 23- lens, 231- reflect hole, 24-
Ring support.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Embodiment one
Referring to Fig.1, a kind of diagrammatic cross-section of down straight aphototropism mode set is shown, which specifically can be with
Including diffuser plate 10 and lamp bar 20, lamp bar 20, which is located at the side of the incidence surface of diffuser plate 10 namely lamp bar 20, can be arranged in expansion
Fall apart 10 lower section.Wherein, lamp bar 20 may include substrate 21, multiple CSP lamp beads 22, and corresponding with CSP lamp bead 22
Mirror 23 namely a CSP lamp bead 22 can be correspondingly arranged the lens 23 for light distribution.Multiple grooves are provided on substrate 21
211, wherein groove 211 includes bottom and side wall, and CSP lamp bead 22 can be located at the bottom of groove 211, and the side wall of groove 211 can
Think that reflecting surface, CSP lamp bead 22 and corresponding groove 211 are located at the incident side of corresponding lens 23.CSP lamp bead 22 and substrate
21 electrical connections, lens 23 are also connect with substrate 21.
Wherein, referring to Fig.1, the region between 21 coupling part of lens 23 and substrate is the incidence surface W of lens 23, lens 23
Multiple refraction holes 231 are additionally provided in annular region of the incidence surface W close to coupling part, when the light that CSP lamp bead 22 issues is penetrated
Enter to when reflecting hole 231, refraction hole 231 can reflect light, to change the path of the injection lens 23 of light, just
Light distribution is carried out in lens 23.
In the down straight aphototropism mode set, bottom width R of the groove 211 on target direction D1With opening width R2It can be with
More than or equal to maximum outside diameter k of the CSP lamp bead 22 on target direction D, wherein target direction D is parallel to entering for diffuser plate 10
Smooth surface Q that is to say for any target direction for being parallel to incidence surface Q, bottom width of the groove 211 on the target direction and
Opening width is all larger than or the maximum outside diameter equal to CSP lamp bead 22 on the target direction, so that CSP lamp bead 22 can be set
The bottom of groove 211, merely exemplary the showing of Fig. 1 are parallel to one of target direction D of incidence surface Q.Substrate 21 can be with
For the PCB (Printed Circuit Board, printed circuit board) of aluminum, CSP lamp bead 22 can be welded with substrate 21, thus
Realization is electrically connected with substrate 21.Since the bottom surface of CSP lamp bead 22 needs directly to weld with the bottom of groove 211, groove
The 211 bottom width R on target direction D1Maximum outside diameter k of the CSP lamp bead 22 on target direction D can be greater than or equal to,
To when CSP lamp bead 22 to be set in groove 211, it can guarantee being electrically connected for CSP lamp bead 22 and 211 bottom of groove.
By the way that groove is arranged on substrate, and CSP lamp bead is arranged in the bottom of groove, so that the side wall of groove can hinder
The light that CSP lamp bead side issues is kept off, and then the stray light of display area generation can be reduced, improves display effect.
In addition, in embodiments of the present invention, the depth L of groove 211 can be greater than the thickness h of CSP lamp bead 22, thus groove
211 can stop CSP lamp bead 22 to project the light of down straight aphototropism mode set perpendicular to itself side completely, and therefore, depth is greater than
The groove 211 of CSP lamp bead thickness can stop the most light projected between lamp bar 20 and lens 23, so as to big
The big stray light for weakening display screen and leaking out, and then improve the display effect of display screen.
Furthermore opening width R of the groove 211 on target direction D2It can depth, CSP lamp bead 22 according to groove 211
Minimum range and CSP lamp bead between thickness, diffuser plate 10 and the substrate 21 on target direction D of thickness, diffuser plate 10
22 maximum outside diameter on target direction D is set, so that the light of CSP lamp bead 22 can not be between lamp bar 20 and lens 23
Gap project.In practical applications, opening width R of the groove 211 on target direction D2It can satisfy following formula (1).
Wherein, in above-mentioned formula (1), L is the depth of groove, and h is the thickness of CSP lamp bead, and H is the incidence surface W of lens
Width in the target direction, p are the minimum range between the incidence surface W and substrate of lens, and k is CSP lamp bead in target direction
On maximum outside diameter.
When CSP lamp bead 22 is set in groove 211, CSP lamp bead 22 is formed by bowl by groove 211 and is limited, and is gone out
Angular has certain range, and by structural parameters such as the depth of adjusting grooves, opening widths, CSP lamp bead can be limited
22 light-emitting angle, so that the light that CSP lamp bead 22 projects can not project the gap between lamp bar 20 and lens 23.Reference Fig. 2,
Light A and light B that CSP lamp bead 22 projects can indicate the critical ray of 22 light-emitting angle of CSP lamp bead.By taking light A as an example, when
When light A can be projected just except the incidence surface W of lens 23, according to Similar Principle of Triangle, in down straight aphototropism mode set
Each structural parameters can satisfy following formula (3) to formula (6).
X1=L-h (4)
X2=0.5 (R2-k) (5)
X3=0.5 (H-k) (6)
Available, opening width R of the groove 211 on target direction D is solved to above-mentioned formula (3) to formula (6)2It is full
Foot states formula (7).
Opening width R of the groove 211 on target direction D2When meeting above-mentioned formula (7), the light of the injection of CSP lamp bead 22
A can project the gap between lamp bar 20 and lens 23 just.Section when being located at groove 211 due to CSP lamp bead 22 or so pair
Claim, so carrying out the opening width obtained after above-mentioned analysis to light B also meets formula (7), it therefore, can be according to above-mentioned formula
(1) opening width R is set2Value, thus work as opening width R2When less than opening width value in formula (7), CSP lamp bead
22 light projected can not project the gap between lamp bar 20 and lens 23, and then can be avoided CSP lamp bead 22 and penetrate from gap
Light out is reflected by other devices in display and leaks out display screen.
For example, the size of each CSP lamp bead 22 can be 0.5mm (millimeter) * 0.5mm*0.35mm, wherein 0.35mm is
The thickness of CSP lamp bead 22.Correspondingly, bottom width R of each groove 211 on target direction D1It can be 0.8mm, it is each recessed
Opening width R of the slot 211 on target direction D2It can be 2.1mm, the depth of each groove 211 can be 0.45mm.
Further, in a kind of preferred implementation, opening width R of the groove 211 on target direction D2It can be with
Greater than bottom width R of the groove 211 on target direction D1.As opening width R2Greater than bottom width R1When, CSP lamp bead 22
Side is emitted to some light of 211 side wall of groove, can be reflected in lens 23 by the reflecting layer on 211 side wall of groove,
So as to be utilized by lens 23, this some light after reflection and refraction, can inject diffuser plate 10 in lens 23,
So as to increase the light utilization of down straight aphototropism mode set, and then it can be improved the brightness of display screen.
In addition, opening width R2Greater than bottom width R1When, most of light of 22 side of CSP lamp bead outgoing can be recessed
The side wall of slot 211 is directed into lens 23, so as to avoid light from penetrating the LED in CSP lamp bead 22 repeatedly for a long time
(Light Emitting Diode, light emitting diode) chip, and then the light penetrated repeatedly can be reduced, LED chip is caused
Excessive loss, to extend the luminescent lifetime of lamp bar.
In embodiments of the present invention, opening width R of the groove 211 on target direction D2It can be with 211 depth of groove
Increase and increases, with guarantee CSP lamp bead 22 light can not between lamp bar 20 and lens 23 gap injection.In addition, when recessed
Opening width R of the slot 211 on target direction D2When determining, to guarantee that lens can be directly entered after most of light reflects
23, the angle theta between the side wall of groove 211 and the bottom of groove 211 answers as small as possible namely opening width R2Determining situation
Under, the sidewall bottom of groove 211 should be as close as possible to the bottom of CSP lamp bead 22.When the sidewall bottom and CSP lamp bead 22 of groove 211
Bottom connection when, bottom width R of the groove 211 on target direction D1It is outer with maximum of the CSP lamp bead 22 on target direction D
Diameter k is equal, at this point, angle theta meets following formula (8).
Certainly, in practical applications, opening width R of the groove 211 on target direction D2It might be less that or be equal to recessed
Bottom width R of the slot 211 on target direction D1, the present invention is not especially limit this.
Usually in down straight aphototropism mode set, it is big that the light after 23 light distribution of lens needs to meet certain hot spot
It is small, so that diffuser plate 10 can be diffused hot spot, obtain showing required light, therefore in practical applications, Ke Yitong
The design parameter for crossing groove 211 limits the light-emitting angle of CSP lamp bead 22, with to project lens 23 spot size,
The spot size for being incident to diffuser plate 10 is limited.
In practical applications, the light-emitting angle that can set CSP lamp bead 22 is less than or equal to 120 degree, and can be with this angle
Spend one of parameter as design groove 211.Specifically, referring to Fig. 3, when the sidewall bottom and CSP lamp bead 22 of groove 211
Bottom connection when, due to CSP lamp bead 22 light-emitting angle be less than or equal to 120 degree, CSP lamp bead 22 sending it is critical
The shooting angle φ of light should be less than or be equal to 60 degree, at this point, shooting angle φ meets following formula (9).To formula (8) and public affairs
Formula (9) solves available, opening width R of the groove 211 on target direction D2Meet following formula (2), namely is designing
When groove 211, bottom width R of the groove 211 on target direction D1It can satisfy following formula (2).
φ=90 °-θ (9)
R1≤R2-3.464·L (2)
Further, since the light of 22 side of CSP lamp bead outgoing will largely be emitted to the side wall of groove 211, at this point,
If the side wall of groove 211 is diffusing reflection face, for the light that CSP lamp bead 22 is emitted after diffusing reflection, opticpath can not
Control, for the reflecting surface of 211 side wall of groove, therefore, the side wall of each groove 211 can be reflecting surface, so as to CSP lamp
The light of 22 side of pearl outgoing is emitted.Specifically, in practical applications, reflection can be coated on the side wall of groove 211
Layer, it is hereby achieved that the reflecting surface of recess sidewall.And work as bottom width R1Greater than CSP lamp bead 22 maximum outside diameter k when, groove
The region that 211 bottoms are not covered by CSP lamp bead 22, the light that can also be emitted to 22 side of CSP lamp bead reflect.In reality
In, in order to keep the region controllable to the reflection of light, the bottom of groove 211 may be reflecting surface, thus groove 211
Bottom can also reflex to light in lens 23, to further enhance the light utilization of down straight aphototropism mode set.Specifically
Ground can be coated with reflecting layer in practical applications on the bottom surface of groove 211, it is hereby achieved that the reflecting surface of bottom portion of groove.
Fig. 4 shows the schematic diagram that a kind of CSP lamp bead 22 is set in groove 211, and referring to Fig. 4, each groove 211 is in mesh
Mark in plane can rounded namely each groove 211 can be circular groove, wherein objective plane is parallel to diffuser plate 10
Incidence surface Q.Since lens 23 are rounded on objective plane, so as to the light for all angles for issuing CSP lamp bead 22
Line is equably diffused as the biggish circular light spot of area, therefore, also accordingly sets round for the groove 211 that CSP lamp bead 22 is arranged
Connected in star is injected in lens 23 so that the light that groove 211 reflects can form round or ring-shaped light spot, is injected without changing
The light spot shape of diffuser plate 10 is avoided causing display screen excessive lightness or darkness region occur since light spot shape changes, be influenced
Display effect.
Certainly, in practical applications, each groove 211 can also oval namely each groove on objective plane
211 can be oval-shaped groove, and the present invention is not especially limit this.In addition, in practical applications, can be to one
Monolith substrate is machined out, and is directly formed multiple grooves, or can be machined out first to one piece of substrate, is obtained multiple
Then this substrate is bonded by through-hole with another piece of substrate again, so that another piece of substrate can be used as by the part of through-hole exposure
The side wall of the bottom surface of groove, through-hole can be used as the side wall of groove, and then be capable of forming multiple grooves.
In the embodiment of the present invention, each lens 23 can be connect with substrate 21, in one implementation, referring to Fig.1, should
Down straight aphototropism mode set can also include ring support 24, and non-incidence surface of each lens 23 far from 10 side of diffuser plate can be with
Ring support 24 is bonded.Correspondingly, each lens 23 can be Nian Jie with the non-recessed region of substrate 21 by ring support 24, from
And realize the connection of each lens 23 and substrate 21.
It should be noted that in practical applications, ring support 24 can be a complete ring-type element, certainly, ring
Shape bracket 24 also may include the multiple arcs bracket that central axis group circularizes, on objective plane, between each arc bracket
It can be spaced a distance, the present invention is not especially limit this.
In another implementation, annular has can be set far from the non-incidence surface of 10 side of diffuser plate in each lens 23
Prominent structure.Correspondingly, each lens 23 can be Nian Jie with the non-recessed region of substrate 21 by the prominent structure of annular, thus real
The now connection of each lens 23 and substrate 21.
Met in the groove of above-mentioned condition by the way that CSP lamp bead is set to depth, bottom width and opening width, thus
When lamp bar shines, the light that CSP lamp bead issues can be limited in downward back by groove structure and the reflecting surface of groove
In optical mode group, gap of the light that so, it is possible that CSP lamp bead is avoided to issue between lamp bar and lens leaks out and display screen is made to exist
Stray light is generated when display, and then the display effect of display screen can be improved.
In addition, the depth of groove can be greater than the thickness of CSP lamp bead, thus diffuser plate expanded by heating in use
When, substrate confronting grooves structure outstanding can be supported the diffuser plate of expansion, so that diffuser plate will be unable to touch CSP
Lamp bead improves the reliability of down straight aphototropism mode set so as to avoid CSP lamp bead impaired.
In practical applications, the side wall of groove 211 can be flat sidewall, as shown in Fig. 2, that is to say the side of groove 211
Wall can be planar structure.In another implementation, the side wall of groove 211 may be cambered surface side wall, as shown in figure 5,
The side wall that is to say groove 211 can be globoidal structure.
The embodiment of the present invention includes following advantages:
In embodiments of the present invention, down straight aphototropism mode set includes the lamp bar of diffuser plate and straight-down negative, the substrate in lamp bar
On be provided with multiple grooves, the CSP lamp bead in lamp bar is in the grooves.Wherein, groove includes bottom and side wall, CSP lamp bead position
In the bottom of groove, that is to say in CSP lamp bead insertion groove, so that recess sidewall can block the light of CSP lamp bead side sending
Line makes the light that can not project the gap between lamp bar and lens, so, it is possible reduce display screen display when generate it is spuious
Light, and then improve display effect.
Those skilled in the art should understand that embodiment described in this description belongs to preferred embodiment.It is related
Movement and structure are not necessarily essential to the invention.Although the preferred embodiment of the embodiment of the present invention has been described, this
Technical staff in field once knows basic creative concept, then can make other change to these embodiments and repair
Change.So it includes preferred embodiment and all changes for falling into range of embodiment of the invention that the following claims are intended to be interpreted as
More and modify.
It should also be noted that, herein, relational terms such as first and second and the like are used merely to one
Entity or operation are distinguished with another entity or operation, without necessarily requiring or implying between these entities or operation
There are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to contain
Lid non-exclusive inclusion, so that the process, method, article or the terminal device that include a series of elements not only include that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of terminal device.In the absence of more restrictions, the element limited by sentence " including one ... ",
Be not precluded is including that there is also other identical elements in the process, method of the element, article or terminal device.
It above to a kind of down straight aphototropism mode set provided by the present invention, is described in detail, tool used herein
Principle and implementation of the present invention are described for body example, the above embodiments are only used to help understand this hair
Bright method and its core concept；At the same time, for those skilled in the art, according to the thought of the present invention, specific real
Apply in mode and application range that there will be changes, in conclusion the content of the present specification should not be construed as to limit of the invention
System.
Claims (10)
1. a kind of down straight aphototropism mode set, which is characterized in that including diffuser plate and lamp bar, the lamp bar is located at the diffuser plate
The side of incidence surface, the lamp bar include substrate, multiple CSP lamp beads, and lens corresponding with the CSP lamp bead, the base
Multiple grooves are provided on plate, the groove includes bottom and side wall, and the CSP lamp bead is located at the bottom of the groove, described
The side wall of groove is reflecting surface, and the CSP lamp bead and corresponding groove are located at the incident side of corresponding lens, the CSP lamp
Pearl is electrically connected with the substrate.
2. down straight aphototropism mode set according to claim 1, which is characterized in that the depth of the groove is greater than the CSP
The thickness of lamp bead.
3. down straight aphototropism mode set according to claim 1, which is characterized in that the opening of the groove in the target direction
Width R2Meet following formula (1), the target direction is parallel to the incidence surface of the diffuser plate；
Wherein, in above-mentioned formula (1), the L is the depth of the groove, and the h is the thickness of the CSP lamp bead, the H
For width of the incidence surface on the target direction of the lens, the p be the lens incidence surface and the substrate it
Between minimum range, the k be maximum outside diameter of the CSP lamp bead on the target direction.
4. down straight aphototropism mode set according to claim 1, which is characterized in that the opening of the groove in the target direction
Width is greater than bottom width of the groove on the target direction, and what the target direction was parallel to the diffuser plate enters light
Face.
5. down straight aphototropism mode set according to claim 1, which is characterized in that the bottom surface of the groove in the target direction
Width R1Meet following formula (2), the target direction is parallel to the incidence surface of the diffuser plate；
R1≤R2-3.464·L (2)
Wherein, in above-mentioned formula (2), the R2For opening width of the groove on the target direction, the L is institute
State the depth of groove.
6. down straight aphototropism mode set according to claim 1, which is characterized in that the bottom of the groove is reflecting surface.
7. down straight aphototropism mode set according to claim 1, which is characterized in that the groove is on objective plane in circle
Shape, the objective plane are parallel to the incidence surface of the diffuser plate.
8. down straight aphototropism mode set according to claim 1, which is characterized in that the lens are far from the diffuser plate side
Non- incidence surface it is Nian Jie with ring support, the lens are Nian Jie with the non-recessed region of the substrate by the ring support.
9. down straight aphototropism mode set according to claim 1, which is characterized in that the lens are far from the diffuser plate side
Non- incidence surface be provided with the prominent structure of annular, the non-recessed region that the lens pass through annular the protrusion structure and the substrate
Domain bonding.
10. down straight aphototropism mode set according to claim 1, which is characterized in that the side wall of the groove is flat sidewall
Or cambered surface side wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810827570.6A CN109118953B (en) | 2018-07-25 | 2018-07-25 | Direct type backlight module |
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| WO2023173869A1 (en) * | 2022-03-18 | 2023-09-21 | 海信视像科技股份有限公司 | Display device |
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| CN109118953B (en) | 2021-05-28 |
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Address after: 266100, No. 218, Bay Road, Qingdao economic and Technological Development Zone, Shandong Applicant after: Hisense Visual Technology Co., Ltd. Address before: 266555 Qingdao economic and Technological Development Zone, Shandong, Hong Kong Road, No. 218 Applicant before: QINGDAO HISENSE ELECTRONICS Co.,Ltd. |
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