CN108019625A - A kind of down straight aphototropism mode set matrix light source - Google Patents
A kind of down straight aphototropism mode set matrix light source Download PDFInfo
- Publication number
- CN108019625A CN108019625A CN201810031700.5A CN201810031700A CN108019625A CN 108019625 A CN108019625 A CN 108019625A CN 201810031700 A CN201810031700 A CN 201810031700A CN 108019625 A CN108019625 A CN 108019625A
- Authority
- CN
- China
- Prior art keywords
- led lamp
- light source
- lamp bead
- mode set
- pcb board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
Abstract
The present invention discloses a kind of down straight aphototropism mode set matrix light source, including pcb board, LED lamp bead, netted white wall, transparent silicon glue-line；The LED lamp bead of matrix arrangement is provided with above the pcb board, netted white wall is installed above pcb board, the rectangular through-hole of matrix arrangement is provided with netted white wall, netted white wall between two neighboring rectangular through-hole formed wall, pcb board and netted white walled into rectangular channel in be provided with transparent silicon glue-line.The present invention has the characteristics that to reduce backlight module thickness and local dimming.Structure provided by the invention, cancels optical lens, can effectively reduce the thickness of backlight module, be conducive to the making of ultrathin display；Pass through the electric current and voltage of drive circuit independent control LED lamp bead, the hot spot brightness of diaphragm area above control rectangle groove, local dimming truly is realized in diaphragm area above two neighboring rectangular recess without interfering with each other, with this, to increase the contrast of display and save electric energy.
Description
Technical field
It is especially a kind of that there is reduction backlight module thickness the present invention relates to a kind of down straight aphototropism mode set matrix light source
With the down straight aphototropism mode set matrix light source of local dimming.
Background technology
In the technical field of LED backlight module, fast development trend is presented in LED backlight market.At this stage, backlight module can
It is divided into two kinds of side entering type and straight-down negative, since down straight aphototropism mode set compared to side entrance back module need not set leaded light
Plate, and welcome with its quality-high and inexpensive advantage, depth by consumers in general, for side entrance back module, direct-type backlight
LED light bar in module needs to install optical lens additional outside its LED luminescence chip, so that the light that LED luminescence chips are sent
It can be uniformly mixed.
Direct-light-type backlight technique is simple, it is not necessary to which light guide plate, LED array are placed in backlight module bottom, are sent from LED
Light is uniformly projected by bottom surface and offside reflection, then by the diffuser plate and optics module on surface.The thickness of direct-light-type backlight
Mainly determined by backboard bottom and light mixing distance, light mixing distance is distances of the LED to scatter plate, and usual light mixing distance is bigger, the back of the body
The uniformity of optical mode group light extraction is also better.Light source is formed for PCB lamp bars in direct-type backlight at present, and PCB lamp bars include pcb board
With the LED lamp bead on pcb board.Pcb board connects drive circuit, and drive circuit is powered to LED lamp bead by pcb board, made
LED lamp bead produces the light needed for backlight module, but the light that LED lamp bead is directly sent excessively is concentrated, and is irradiated on diffuser plate, occurs
Obvious luminance color component.At present, traditional backlight module mounted lens usually above LED lamp bead, the light warp for sending LED lamp bead
After lens, uniformly it is irradiated on diffuser plate.The light type and lens size and light-out effect of LED lamp bead, add downward back
The thickness of optical mode group, and since lens have the light that adjacent LED lamp bead is sent through the region on lens lighting to diffuser plate
It is overlapping, by drive circuit independent control LED lamp bead, it can not realize outstanding local dimming effect.
The content of the invention
It is an object of the invention to provide a kind of downward back optical mode for having and reducing backlight module thickness and local dimming
Group matrix light source.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of down straight aphototropism mode set matrix light source, including pcb board, LED lamp bead, netted white wall, transparent silicon glue-line；
The LED lamp bead of matrix arrangement is provided with above the pcb board, netted white wall, netted white wall are installed above pcb board
On be provided with the rectangular through-hole of matrix arrangement, the netted white wall between two neighboring rectangular through-hole forms wall, pcb board and netted
White walled into rectangular channel in be provided with transparent silicon glue-line；
The height of the transparent silicon glue-line exceedes netted white wall；
The LED lamp bead is adopting surface mounted LED lamp bead, one kind in flip LED chips, CSP, and adopting surface mounted LED lamp bead includes
Some LED chips are one kind in vertical wafer or formal dress chip；
One or four LED lamp beads are provided with the rectangular channel；
The netted white wall is made of reflective material；
The material of the transparent silicon glue-line is epoxy resin, one kind in organic silica gel class, polyurethanes；Transparent silica gel
Contain one or both of diffusant or dumb light agent in layer, the concentration of diffusant or dumb light agent is 1-10%wt；
The cross sectional shape of the wall is one kind in rectangle, trapezoidal, taper, circle, ellipse, polygon；
The parallel circuit to LED lamp bead is provided with the pcb board.
The present invention provides a kind of down straight aphototropism mode set matrix light source, and having reduces backlight module thickness and region tune
The characteristics of light.Structure provided by the invention, cancels optical lens, can effectively reduce the thickness of backlight module, be conducive to ultra-thin display
Show the making of device；Pass through the electric current and voltage of drive circuit independent control LED lamp bead, the light of control rectangle groove top diaphragm area
Local dimming truly is realized in spot brightness, diaphragm area above two neighboring rectangular recess without interfering with each other, with this,
To increase the contrast of display and save electric energy.
Brief description of the drawings
In order to facilitate the understanding of those skilled in the art, the present invention is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is a kind of partial cross section's structure diagram of down straight aphototropism mode set matrix light source of the present invention；
Fig. 2 is a kind of structure diagram of down straight aphototropism mode set matrix light source of the present invention；
Fig. 3 is a kind of top view of down straight aphototropism mode set matrix light source of the present invention；
Fig. 4 is a kind of diffuser plate lower surface light type simulation drawing of down straight aphototropism mode set matrix light source of the present invention.
Embodiment
The purpose of the present invention can be achieved through the following technical solutions：
A kind of down straight aphototropism mode set matrix light source, referring to Fig. 1-3, including pcb board 1, LED lamp bead 2, netted white wall 3,
Transparent silicon glue-line 4；
The top of pcb board 1 is provided with the LED lamp bead 2 of matrix arrangement, and the top of pcb board 1 is provided with netted white wall 3, netted
It is provided with the rectangular through-hole of matrix arrangement on white wall 3, the netted white wall 3 between two neighboring rectangular through-hole forms wall, pcb board
1 and the rectangular channel that surrounds of netted white wall 3 in be provided with transparent silicon glue-line 4；
The height of the transparent silicon glue-line 4 exceedes netted white wall 3；
The LED lamp bead 2 is adopting surface mounted LED lamp bead, one kind in flip LED chips, CSP, and adopting surface mounted LED lamp bead includes
Some LED chips are one kind in vertical wafer or formal dress chip；
One or four LED lamp beads 2 are provided with the rectangular channel；
The netted white wall 3 is made of reflective material, and the light that LED lamp bead 2 is sent travels to netted into transparent silicon glue-line 4
White 3 surface of wall, after netted white wall 3 reflects, is projected from 4 upper surface of transparent silicon glue-line；
The material of the transparent silicon glue-line 4 is epoxy resin, one kind in organic silica gel class, polyurethanes；Transparent silicon
Contain one or both of diffusant or dumb light agent in glue-line 4, the concentration of diffusant or dumb light agent is 1-10%wt；
The cross sectional shape of the wall is one kind in rectangle, trapezoidal, taper, circle, ellipse, polygon；
The parallel circuit to LED lamp bead 2 is provided with the pcb board 1, passes through drive circuit independent control LED lamp bead 2
Electric current and voltage, make light that LED lamp bead 2 sends form uniform light type on the diaphragm in backlight module, complete local dimming.
The principle of the present invention：
The matrix light source is placed with the backboard in backlight module, diaphragm is placed with above backboard.It is only by drive circuit
The electric current and voltage of vertical control LED lamp bead 2, make light that LED lamp bead 2 sends form uniform light on the diaphragm in backlight module
Type, completes local dimming.The light that LED lamp bead 2 is sent divides two parts, and a part of light directly reaches diaphragm by transparent silicon glue-line 4
On, another part light travels to netted white 3 surface of wall into transparent silicon glue-line 4, after netted white wall 3 reflects, from transparent silica gel
4 upper surface of layer are projected, and are reached on diaphragm, two parts light reaches uniform light type after membrane surface is overlapping.
Structure provided by the invention, cancels optical lens, can effectively reduce the thickness of backlight module, be conducive to ultra-thin display
The making of device；Pass through the electric current and voltage of drive circuit independent control LED lamp bead 2, the light of control rectangle groove top diaphragm area
Local dimming truly is realized in spot brightness, diaphragm area above two neighboring rectangular recess without interfering with each other, with this,
To increase the contrast of display and save electric energy.
Model and simulate light type：
As shown in figure 4, by optical simulation software, the matrix light source that wall is isosceles trapezoid, the square of matrix light source are established
Contain four LED lamp beads 2 in shape groove, by optical analog Tracepro softwares, simulate rectangular shaped light source and received in diaphragm optics
Light propagation condition on the S0 of face.Uniform light is distributed with diaphragm optics receiving plane S0.
The present invention provides a kind of down straight aphototropism mode set matrix light source, and having reduces backlight module thickness and region tune
The characteristics of light.Structure provided by the invention, cancels optical lens, can effectively reduce the thickness of backlight module, be conducive to ultra-thin display
Show the making of device；By the electric current and voltage of drive circuit independent control LED lamp bead 2, diaphragm area above control rectangle groove
Region tune truly is realized in hot spot brightness, diaphragm area above two neighboring rectangular recess without interfering with each other, with this
Light, to increase the contrast of display and save electric energy.
Above content is only to structure example of the present invention and explanation, affiliated those skilled in the art couple
Described specific embodiment does various modifications or additions or substitutes in a similar way, without departing from invention
Structure surmounts scope defined in the claims, is within the scope of protection of the invention.
Claims (8)
1. a kind of down straight aphototropism mode set matrix light source, including pcb board (1), LED lamp bead (2), netted white wall (3), transparent silicon
Glue-line (4), it is characterised in that：
The LED lamp bead (2) of matrix arrangement is provided with above the pcb board (1), netted white wall (3) is installed above pcb board (1),
It is provided with the rectangular through-hole of matrix arrangement on netted white wall (3), the netted white wall (3) between two neighboring rectangular through-hole forms wall
Transparent silicon glue-line (4) is provided with the rectangular channel that wall, pcb board (1) and netted white wall (3) surround.
A kind of 2. down straight aphototropism mode set matrix light source according to claim 1, it is characterised in that the transparent silica gel
The height of layer (4) exceedes netted white wall (3).
A kind of 3. down straight aphototropism mode set matrix light source according to claim 1, it is characterised in that the LED lamp bead
(2) it is adopting surface mounted LED lamp bead, one kind in flip LED chips, CSP, the LED chip that adopting surface mounted LED lamp bead includes is vertical
One kind in chip or formal dress chip.
4. a kind of down straight aphototropism mode set matrix light source according to claim 1, it is characterised in that in the rectangular channel
It is provided with one or four LED lamp beads (2).
A kind of 5. down straight aphototropism mode set matrix light source according to claim 1, it is characterised in that the netted white wall
(3) it is made of reflective material.
A kind of 6. down straight aphototropism mode set matrix light source according to claim 1, it is characterised in that the transparent silica gel
The material of layer (4) is epoxy resin, one kind in organic silica gel class, polyurethanes；Contain diffusant in transparent silicon glue-line (4)
Or one or both of dumb light agent, the concentration of diffusant or dumb light agent is 1-10%wt.
7. a kind of down straight aphototropism mode set matrix light source according to claim 1, it is characterised in that the wall is cut
Face shape is one kind in rectangle, trapezoidal, taper, circle, ellipse, polygon.
A kind of 8. down straight aphototropism mode set matrix light source according to claim 1, it is characterised in that the pcb board (1)
On be provided with parallel circuit to LED lamp bead (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810031700.5A CN108019625A (en) | 2018-01-12 | 2018-01-12 | A kind of down straight aphototropism mode set matrix light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810031700.5A CN108019625A (en) | 2018-01-12 | 2018-01-12 | A kind of down straight aphototropism mode set matrix light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108019625A true CN108019625A (en) | 2018-05-11 |
Family
ID=62071475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810031700.5A Pending CN108019625A (en) | 2018-01-12 | 2018-01-12 | A kind of down straight aphototropism mode set matrix light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108019625A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109148428A (en) * | 2018-07-16 | 2019-01-04 | 海迪科（南通）光电科技有限公司 | A kind of direct backlight source structure and its manufacturing method applied to mini and micro backlight |
| CN109541844A (en) * | 2018-11-07 | 2019-03-29 | 惠州市华星光电技术有限公司 | Light-emitting diode light bar and backlight module |
| CN109741685A (en) * | 2019-02-18 | 2019-05-10 | 深圳市洲明科技股份有限公司 | A kind of LED display module and preparation method thereof |
| CN110047404A (en) * | 2019-03-31 | 2019-07-23 | 湖南凯星电子科技有限公司 | A kind of backlight of assembling-type module lamp box |
| CN110136597A (en) * | 2019-05-23 | 2019-08-16 | 安徽芯瑞达科技股份有限公司 | A kind of ultra-thin matrix backlight mould group and preparation method thereof |
| CN110308584A (en) * | 2019-05-23 | 2019-10-08 | 安徽芯瑞达科技股份有限公司 | A kind of ultra-thin babysbreath backlight approach |
| CN110426894A (en) * | 2019-07-19 | 2019-11-08 | 惠州伟志电子有限公司 | A kind of down straight aphototropism mode set of polymorphic structure |
| CN110729284A (en) * | 2019-10-28 | 2020-01-24 | 苏州晶台光电有限公司 | Preparation method of outdoor full-color display screen device |
| CN111948854A (en) * | 2020-08-21 | 2020-11-17 | 安徽芯瑞达科技股份有限公司 | Ultra-thin straight following formula backlight unit based on chip level light emitting area |
| CN114156393A (en) * | 2021-11-26 | 2022-03-08 | 深圳市兆纪光电有限公司 | Mini-LED and manufacturing method thereof |
| CN114613268A (en) * | 2022-03-09 | 2022-06-10 | 深圳市南极光电子科技股份有限公司 | Backlight source, backlight module and display |
| CN114758628A (en) * | 2021-10-26 | 2022-07-15 | 嘉视(山东)电子科技有限公司 | Method for regional dimming of display module |
| CN117663024A (en) * | 2023-12-14 | 2024-03-08 | 苏州天准科技股份有限公司 | Combined light source and imaging system for chip mounter |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040218390A1 (en) * | 2003-01-24 | 2004-11-04 | Digital Optics International Corporation | High-density illumination system |
| CN101059621A (en) * | 2006-04-19 | 2007-10-24 | 三星电机株式会社 | Backlight unit for liquid crystal display device |
| CN103090264A (en) * | 2011-11-04 | 2013-05-08 | 奇菱光电股份有限公司 | Direct Type Backlight Module |
| CN103486496A (en) * | 2012-06-08 | 2014-01-01 | 东贝光电科技股份有限公司 | Improved structure of direct-type backlight module |
| CN204011478U (en) * | 2014-07-21 | 2014-12-10 | 康佳集团股份有限公司 | A kind of lensless LED directly-down liquid crystal module |
| CN105333334A (en) * | 2015-11-16 | 2016-02-17 | 合一智能科技（深圳）有限公司 | LED light bar and liquid crystal display module |
| CN207796590U (en) * | 2018-01-12 | 2018-08-31 | 安徽芯瑞达科技股份有限公司 | A kind of down straight aphototropism mode set matrix light source |
-
2018
- 2018-01-12 CN CN201810031700.5A patent/CN108019625A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040218390A1 (en) * | 2003-01-24 | 2004-11-04 | Digital Optics International Corporation | High-density illumination system |
| CN101059621A (en) * | 2006-04-19 | 2007-10-24 | 三星电机株式会社 | Backlight unit for liquid crystal display device |
| CN103090264A (en) * | 2011-11-04 | 2013-05-08 | 奇菱光电股份有限公司 | Direct Type Backlight Module |
| CN103486496A (en) * | 2012-06-08 | 2014-01-01 | 东贝光电科技股份有限公司 | Improved structure of direct-type backlight module |
| CN204011478U (en) * | 2014-07-21 | 2014-12-10 | 康佳集团股份有限公司 | A kind of lensless LED directly-down liquid crystal module |
| CN105333334A (en) * | 2015-11-16 | 2016-02-17 | 合一智能科技（深圳）有限公司 | LED light bar and liquid crystal display module |
| CN207796590U (en) * | 2018-01-12 | 2018-08-31 | 安徽芯瑞达科技股份有限公司 | A kind of down straight aphototropism mode set matrix light source |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109148428A (en) * | 2018-07-16 | 2019-01-04 | 海迪科（南通）光电科技有限公司 | A kind of direct backlight source structure and its manufacturing method applied to mini and micro backlight |
| CN109148428B (en) * | 2018-07-16 | 2021-07-30 | 海迪科（南通）光电科技有限公司 | Direct type backlight source structure applied to mini and micro backlight and manufacturing method thereof |
| WO2020093511A1 (en) * | 2018-11-07 | 2020-05-14 | 惠州市华星光电技术有限公司 | Light emitting diode lamp bar and backlight module |
| CN109541844A (en) * | 2018-11-07 | 2019-03-29 | 惠州市华星光电技术有限公司 | Light-emitting diode light bar and backlight module |
| CN109741685A (en) * | 2019-02-18 | 2019-05-10 | 深圳市洲明科技股份有限公司 | A kind of LED display module and preparation method thereof |
| CN109741685B (en) * | 2019-02-18 | 2021-11-02 | 深圳市洲明科技股份有限公司 | LED display module and manufacturing method thereof |
| CN110047404A (en) * | 2019-03-31 | 2019-07-23 | 湖南凯星电子科技有限公司 | A kind of backlight of assembling-type module lamp box |
| CN110308584A (en) * | 2019-05-23 | 2019-10-08 | 安徽芯瑞达科技股份有限公司 | A kind of ultra-thin babysbreath backlight approach |
| CN110136597A (en) * | 2019-05-23 | 2019-08-16 | 安徽芯瑞达科技股份有限公司 | A kind of ultra-thin matrix backlight mould group and preparation method thereof |
| CN110308584B (en) * | 2019-05-23 | 2022-04-19 | 安徽芯瑞达科技股份有限公司 | Ultrathin starry backlight method |
| CN110426894A (en) * | 2019-07-19 | 2019-11-08 | 惠州伟志电子有限公司 | A kind of down straight aphototropism mode set of polymorphic structure |
| CN110426894B (en) * | 2019-07-19 | 2024-02-06 | 惠州伟志电子有限公司 | Direct type backlight module with special-shaped structure |
| CN110729284A (en) * | 2019-10-28 | 2020-01-24 | 苏州晶台光电有限公司 | Preparation method of outdoor full-color display screen device |
| CN111948854A (en) * | 2020-08-21 | 2020-11-17 | 安徽芯瑞达科技股份有限公司 | Ultra-thin straight following formula backlight unit based on chip level light emitting area |
| CN114758628B (en) * | 2021-10-26 | 2023-09-22 | 嘉视(山东)电子科技有限公司 | Method for adjusting light in display module area |
| CN114758628A (en) * | 2021-10-26 | 2022-07-15 | 嘉视(山东)电子科技有限公司 | Method for regional dimming of display module |
| CN114156393B (en) * | 2021-11-26 | 2023-08-22 | 深圳市兆纪光电有限公司 | Mini-LED and manufacturing method thereof |
| CN114156393A (en) * | 2021-11-26 | 2022-03-08 | 深圳市兆纪光电有限公司 | Mini-LED and manufacturing method thereof |
| CN114613268A (en) * | 2022-03-09 | 2022-06-10 | 深圳市南极光电子科技股份有限公司 | Backlight source, backlight module and display |
| CN114613268B (en) * | 2022-03-09 | 2024-01-23 | 深圳市南极光电子科技股份有限公司 | Backlight source, backlight module and display |
| CN117663024A (en) * | 2023-12-14 | 2024-03-08 | 苏州天准科技股份有限公司 | Combined light source and imaging system for chip mounter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108019625A (en) | A kind of down straight aphototropism mode set matrix light source | |
| US7766530B2 (en) | Backlight, a lens for a backlight, and a backlight assembly having the same | |
| US9222644B2 (en) | Optical assembly, backlight unit having the same, and display apparatus thereof | |
| CN108051953A (en) | A kind of high colour gamut down straight aphototropism mode set of low mixed light height | |
| US10816852B2 (en) | Backlight unit and liquid crystal display device including the same | |
| CN104930399A (en) | Surface light-emitting device and liquid crystal display apparatus | |
| US20060151809A1 (en) | Optical semiconductor unit | |
| KR102080348B1 (en) | Display appratus | |
| CN205450514U (en) | Backlight module and display equipment | |
| CN103017038A (en) | Direct type backlight source and display device | |
| JP2008010693A (en) | Liquid crystal display device | |
| KR102009798B1 (en) | Backlight unit | |
| CN207799289U (en) | A kind of high colour gamut down straight aphototropism mode set of low mixed light height | |
| WO2021057750A1 (en) | Backlight module and display device | |
| CN207796590U (en) | A kind of down straight aphototropism mode set matrix light source | |
| CN102767739A (en) | Direct type laser backlight module and display thereof | |
| TW201350995A (en) | Improved structure of direct type backlight module | |
| CN202274346U (en) | Direct illumination-type laser backlight module and display thereof | |
| CN106019719A (en) | Method for reducing side-emitting-type backlight leakage and uniformizing light-emitting-side edge backlight | |
| JP2013143239A (en) | Led backlight device and liquid crystal display device | |
| CN111948854A (en) | Ultra-thin straight following formula backlight unit based on chip level light emitting area | |
| CN202216065U (en) | Side edge laser backlight module and display with same | |
| JP2005322549A (en) | Lighting system and display device using the same | |
| CN210572833U (en) | Backlight lens for display module | |
| CN102767740A (en) | Side type laser backlight module and display thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180511 |