CN106842706B - Splicing type backlight assembly - Google Patents
Splicing type backlight assembly Download PDFInfo
- Publication number
- CN106842706B CN106842706B CN201710113878.XA CN201710113878A CN106842706B CN 106842706 B CN106842706 B CN 106842706B CN 201710113878 A CN201710113878 A CN 201710113878A CN 106842706 B CN106842706 B CN 106842706B
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- China
- Prior art keywords
- guide plate
- light
- base
- backlight assembly
- light guide
- 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.)
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Links
- 230000003287 optical effect Effects 0.000 claims abstract description 61
- 230000001502 supplementing effect Effects 0.000 claims abstract description 11
- 239000011324 bead Substances 0.000 claims abstract description 6
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 5
- 238000009792 diffusion process Methods 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 239000013589 supplement Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
-
- 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
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- 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
- G02F1/133605—Direct backlight including specially adapted reflectors
-
- 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
- G02F1/133608—Direct backlight including particular frames or supporting means
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention provides a spliced backlight assembly which comprises at least two groups of optical modules spliced with each other, wherein a light supplementing lamp bar is arranged between every two adjacent groups of optical modules, and lamp beads of the light supplementing lamp bar are opposite to a liquid crystal display panel. Compared with the prior art, through set up light filling lamp strip between optical module, compensate the luminance of the concatenation dark zone that exists between the optical module, compensate the not enough problem of luminance.
Description
Technical Field
The invention relates to a liquid crystal panel module technology, in particular to a splicing type backlight assembly.
Background
In the conventional liquid crystal display module or all-in-one machine design, a direct type or side type backlight is often used as a light source. In both of these known light source designs, the assembly of the diffuser plate or the light guide plate is relatively simple, and some existing modular optical module systems are composed of a plurality of optical modules, and since the product is thin and the optical modules are spliced, there is almost no light mixing distance, there is a splicing dark band between the optical modules.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the splicing type backlight assembly, so that the problem of insufficient brightness is solved.
The invention provides a spliced backlight assembly which comprises at least two groups of optical modules spliced with each other, wherein a light supplementing lamp bar is arranged between every two adjacent groups of optical modules, and lamp beads of the light supplementing lamp bar are opposite to a liquid crystal display panel.
Furthermore, more than one diffusion plate is arranged on the optical module.
Furthermore, the optical module comprises a reflector plate, a light guide plate arranged on the reflector plate, a first base, a second base and a lamp strip, wherein the first base and the second base are used for bearing the light guide plate and the reflector plate; the lamp bead of lamp strip sets up with a side of light guide plate is relative, and first base is located the light guide plate and is parallel with lamp strip and adjacent one side, and the opposite side that light guide plate and lamp strip are parallel is located to the second base, the lamp strip is fixed in on the first base of an adjacent set of optical module.
Further, the first base comprises a vertical portion and a bearing portion arranged at the lower end of one side of the vertical portion, the bearing portion is used for bearing one side of the light guide plate opposite to the light bar, a fixing portion used for fixing the light bar of the adjacent group of optical modules is formed on the surface of the vertical portion, opposite to the bearing portion, of the surface, and the light supplementing light bar is arranged on the surface of the upper end of the vertical portion.
Furthermore, a pressing part used for pressing the light guide plate of the adjacent group of optical modules is arranged at the upper end of one side, opposite to the light bar, of the vertical part.
Furthermore, a reflective layer is arranged on the bearing part.
Furthermore, a groove is arranged on the bearing part, and a reflective layer is covered in the groove.
Further, the groove is parallel with the lamp strip.
Further, the light filling lamp strip is arranged on the upper end surface of the pressing part.
Furthermore, the upper end surface of the pressing part is an inclined plane, and the heights of the optical modules are sequentially decreased gradually from the light guide plate to the group of optical modules adjacent to the first base.
Compared with the prior art, the light supplementing lamp strips are arranged between the optical modules, so that the brightness of spliced dark bands existing between the optical modules is compensated, and the problem of insufficient brightness is solved.
Drawings
FIG. 1 is a schematic external view of an optical module according to the present invention;
FIG. 2 is a cross-sectional view of an optical module of the present invention;
FIG. 3 is an assembly view of two adjacent sets of optical modules according to the present invention;
FIG. 4 is a schematic view of a first structure of the first base of the present invention;
FIG. 5 is a schematic view of a second embodiment of the first base of the present invention;
fig. 6 is a schematic view of the connection between the optical module and the substrate according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1 and 3, the backlight assembly of the present invention includes at least two sets of optical modules 2, the optical modules 2 are sequentially laid, a light supplement lamp strip 1 is disposed between the two sets of optical modules 2, and one or more diffusion plates 3 are tiled on the optical modules 2, so as to atomize the light source and form a uniform light source. The light supplementing lamp bar 1 is used for making up the problem that the brightness of splicing dark bands between the optical modules is insufficient.
As shown in fig. 2, each group of optical modules 2 includes a reflector plate 4, a light guide plate 5 disposed on the reflector plate 4, a first base 6 and a second base 7 for supporting the light guide plate 5 and the reflector plate 4, and a light bar 8; the lamp beads of the lamp strips 8 are arranged opposite to one side edge of the light guide plate 5, the light guide plate 5 is in a rectangular strip shape, the light guide plate 5 and the lamp strips 8 are arranged in parallel, the second base 7 is in a rectangular strip structure, and the second base 7 is parallel to the lamp strips 8; the first base 6 is located on one side, parallel to the light bar 8, of the light guide plate 5 and adjacent to the light bar 8, the first base 6 is parallel to the light bar 8, the second base 7 is located on the other side, parallel to the light bar 8, of the light guide plate 5, the first base 6 is opposite to the second base 7, and the light bar 8 is fixed on the first bases 6 of the adjacent optical modules 2.
As shown in fig. 3, the first chassis 6 includes a vertical portion 9, and a bearing portion 10 disposed at a lower end of one side of the vertical portion 9, the bearing portion 10 is used for bearing one side of the light guide plate 5 opposite to the light bar 8, a fixing portion 11 for fixing the light bar 8 of the adjacent group of optical modules 2 is formed on a surface of the vertical portion 9 opposite to the side where the bearing portion 10 is disposed, and the light bar 8 is fixed on the fixing portion 11 by a double-sided tape; the light supplementing lamp bar 1 is fixed on the upper end surface of the vertical part 9 through a double-sided adhesive tape; the support part 10 extends in the direction of the second base 7.
The upper end of one side, opposite to the lamp strip 8, of the vertical portion 9 is provided with a pressing portion 12 for pressing on the light guide plate 5 of the adjacent group of optical modules 2, the pressing portion 12 extends towards the direction of the light guide plate 5 of the adjacent group of optical modules 2, the pressing portion 12 is used for fixing the light guide plate 5 of the adjacent group of optical modules 2, a zigzag structure is formed among the vertical portion 9, the pressing portion 12 and the bearing portion 10, and the length of the pressing portion 12 is smaller than that of the bearing portion 10, so that the light guide plate 5 cannot be shielded in a right mode, and the optical performance of the light guide plate 5 is prevented from being reduced.
In the two sets of optical modules 2 located at the outermost side of the back plate 14, the light bars 8 in one set of optical modules 2 can be directly fixed on the opposite side of the back plate 14, so that one first base 6 can be saved.
As shown in fig. 3, as a preferred mounting manner of the light supplement light bar 1, the light supplement light bar 1 is fixed on the upper end surface of the pressing portion 12 by a double-sided tape, and in the present invention, a plurality of light supplement light bars 1 may be arranged according to actual conditions.
As a further preferred scheme of the first base 6, the upper end surface of the pressing part 12 is an inclined plane, and the height of the light guide plate 5 decreases gradually towards the group of optical modules 2 adjacent to the first base 6, so that a certain angle is formed between the light supplement lamp strip 1 and the diffusion plate, and the light source of the light supplement lamp strip 1 is reflected, thereby being beneficial to the installation of the additionally added lamp strip and enhancing the local light condensation.
In order to further eliminate dark bands, the method is realized by adopting two modes:
first, as shown in fig. 4, a light-reflecting layer 12 is provided on the carrier section 10.
Secondly, as shown in fig. 5, a groove 13 is formed on the supporting portion 10, and a reflective layer 12 is covered in the groove 13. The groove 13 may be parallel to the light bar.
Through the two modes, the effect of improving the local reflection is achieved, and therefore the dark band can be eliminated.
The reflective layer 12 is a reflective material coated in the carrier 10 or the groove 13.
For the sake of easy understanding, the splicing method of the present invention will be described below, and the left optical module will be referred to as a first optical module 2A, and the right optical module will be referred to as a second optical module 2B.
As shown in fig. 3, during installation, the first chassis 6A and the second chassis 7A of the first optical module 2A are placed on the back panel 14, the reflective sheet 4A and the light guide plate 5A are placed on the supporting portion 10A and the second chassis 7A of the first chassis 6A, the light bar 8A of the first optical module 2A is assembled on the fixing portion 11B when the first chassis 6B of the second optical module 2B is placed, the first chassis 6B and the second chassis 7B are assembled on the back panel 14, the press-fit portion 12B assembles the light guide plate 5A of the first optical module 2A on the side adjacent to the light guide plate 5A, and then the reflective sheet 4B, the light guide plate 5B and the light bar 8B are repeatedly installed, and finally the optical module is assembled; when installing two sets of optical module that are located the backplate outside, the accessible with second base and first base change suitable shape can, finally assemble light filling lamp strip 1 again on the pressfitting portion upper end surface.
As shown in fig. 2 and 6, an embedding strip 15 may be stuffed between two sides of all the optical modules 2 perpendicular to the light bar 8 and the back plate 14, and the embedding strip 15 may be fixedly connected to the first base 6 and the second base 7 of the optical module 2 by bolts, so that the optical module 2 is assembled into a set of backlight assembly; the optical modules 2 and the embedded bar 15 can be fixed in a manner that a jack 16 is arranged on the embedded bar 15 and positioned in a groove 13 in the first base 6 of each group of optical modules 2, a plug-in post 17 is arranged on the jack 16, and the plug-in post 17 extends into the groove 13 through the jack 16, so that the first base 6 is limited by the embedded bar 15, and the first base 6 is pressed on the back plate 14; it should be noted that the above-mentioned manner is only an example, and any fixing manner can be applied to the connection between the embedding strip 15 and the first base 6 of the present invention.
While the invention has been shown and described with reference to certain embodiments, those skilled in the art will understand that: various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (9)
1. A spliced backlight assembly comprises at least two groups of optical modules (2) spliced with each other, and is characterized in that: a light supplementing lamp bar (1) is arranged between two adjacent groups of optical modules (2), and the lamp beads of the light supplementing lamp bars (1) are opposite to the liquid crystal display panel; the optical module (2) comprises a reflector plate (4), a light guide plate (5) arranged on the reflector plate (4), a first base (6) and a second base (7) for bearing the light guide plate (5) and the reflector plate (4), and a light bar (8); the lamp bead of lamp strip (8) sets up with a side of light guide plate (5) is relative, and second base (7) are located on light guide plate (5) and are parallel with lamp strip (8) and adjacent one side, and the opposite side that light guide plate (5) and lamp strip (8) are parallel is located in first base (6), lamp strip (8) are fixed in on first base (6) of an adjacent set of optical module (2).
2. The tiled backlight assembly of claim 1, wherein: the optical module (2) is provided with one or more diffusion plates (3).
3. The tiled backlight assembly of claim 1, wherein: first base (6) include vertical portion (9), locate bearing part (10) of vertical portion (9) one side lower extreme, bearing part (10) are used for bearing light guide plate (5) and lamp strip (8) relative one side, and fixed part (11) that are used for fixed lamp strip (8) of adjacent a set of optical module (2) are formed with the surface that is equipped with the opposite one side of bearing part (10) on vertical portion (9), light filling lamp strip (1) are located on the upper end surface of vertical portion (9).
4. The tiled backlight assembly of claim 3, wherein: and the upper end of one side, opposite to the light bar (8), of the vertical part (9) is provided with a pressing part (12) for pressing on the light guide plate (5) of the adjacent group of optical modules (2).
5. The tiled backlight assembly of claim 3, wherein: the bearing part (10) is provided with a reflecting layer (12).
6. The tiled backlight assembly of claim 3, wherein: the bearing part (10) is provided with a groove (13), and a reflective layer (12) is covered in the groove (13).
7. The tiled backlight assembly of claim 6, wherein: the groove (13) is parallel to the lamp strip.
8. The tiled backlight assembly of claim 4, wherein: the light supplementing lamp strip (1) is arranged on the upper end surface of the pressing part (12).
9. The tiled backlight assembly of claim 8, wherein: the upper end surface of the pressing part (12) is an inclined plane, and the heights of the optical modules (2) adjacent to the first base (6) are sequentially decreased progressively from the light guide plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710113878.XA CN106842706B (en) | 2017-02-28 | 2017-02-28 | Splicing type backlight assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710113878.XA CN106842706B (en) | 2017-02-28 | 2017-02-28 | Splicing type backlight assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106842706A CN106842706A (en) | 2017-06-13 |
| CN106842706B true CN106842706B (en) | 2020-06-09 |
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ID=59137128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710113878.XA Active CN106842706B (en) | 2017-02-28 | 2017-02-28 | Splicing type backlight assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106842706B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133914B (en) * | 2019-05-29 | 2021-12-03 | 深圳市华星光电半导体显示技术有限公司 | Backlight structure, manufacturing method thereof and display device |
| CN115167035B (en) * | 2022-09-08 | 2022-12-23 | 惠科股份有限公司 | Backlight module and display device |
| US11871518B1 (en) | 2023-06-19 | 2024-01-09 | HKC Corporation Limited | Backlight module and display device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1697999A (en) * | 2003-02-24 | 2005-11-16 | 索尼株式会社 | Backlight, back-light drive device, and display device |
| CN101017281A (en) * | 2006-02-10 | 2007-08-15 | 鸿富锦精密工业（深圳）有限公司 | Back light system |
| CN201382341Y (en) * | 2009-04-08 | 2010-01-13 | 深圳帝光电子有限公司 | Video-control dynamic LED (light-emitting diode) backlight component |
| CN101680636A (en) * | 2007-07-27 | 2010-03-24 | 夏普株式会社 | Illuminating device, and liquid crystal display device |
| JP2010287556A (en) * | 2009-05-15 | 2010-12-24 | Seiko Instruments Inc | Lighting device and display including the same |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7311431B2 (en) * | 2005-04-01 | 2007-12-25 | Avago Technologies Ecbu Ip Pte Ltd | Light-emitting apparatus having a plurality of adjacent, overlapping light-guide plates |
| JP2010021131A (en) * | 2008-06-09 | 2010-01-28 | Hitachi Ltd | Display device and backlight unit used for the same |
-
2017
- 2017-02-28 CN CN201710113878.XA patent/CN106842706B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1697999A (en) * | 2003-02-24 | 2005-11-16 | 索尼株式会社 | Backlight, back-light drive device, and display device |
| CN101017281A (en) * | 2006-02-10 | 2007-08-15 | 鸿富锦精密工业（深圳）有限公司 | Back light system |
| CN101680636A (en) * | 2007-07-27 | 2010-03-24 | 夏普株式会社 | Illuminating device, and liquid crystal display device |
| CN201382341Y (en) * | 2009-04-08 | 2010-01-13 | 深圳帝光电子有限公司 | Video-control dynamic LED (light-emitting diode) backlight component |
| JP2010287556A (en) * | 2009-05-15 | 2010-12-24 | Seiko Instruments Inc | Lighting device and display including the same |
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| Publication number | Publication date |
|---|---|
| CN106842706A (en) | 2017-06-13 |
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Address after: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Patentee after: TCL China Star Optoelectronics Technology Co.,Ltd. Address before: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Patentee before: Shenzhen China Star Optoelectronics Technology Co.,Ltd. |
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