CN113625486A - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
- Publication number
- CN113625486A CN113625486A CN202010381294.2A CN202010381294A CN113625486A CN 113625486 A CN113625486 A CN 113625486A CN 202010381294 A CN202010381294 A CN 202010381294A CN 113625486 A CN113625486 A CN 113625486A
- Authority
- CN
- China
- Prior art keywords
- adhesive layer
- back plate
- light
- backlight module
- guide plate
- 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.)
- Granted
Links
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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
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)
- Liquid Crystal (AREA)
Abstract
The invention provides a backlight module, which comprises a back plate, a light guide plate, a light source component and a fixing component. The back plate has a bottom surface and a lower surface opposite to each other. The light guide plate is arranged on the back plate and is provided with a light incident surface. The light source assembly is arranged on the back plate and comprises a substrate and at least one light-emitting element positioned on the substrate. The light emitting element is arranged on the light incident surface of the light guide plate. At least one part of the fixing assembly is arranged between the substrate of the light source assembly and the bottom surface of the back plate and comprises a film sheet with a first surface and a second surface which are opposite to each other, a first adhesive layer positioned on the first surface and a second adhesive layer positioned on the second surface. The substrate of the light source component is fixed on the first surface of the film sheet through the first adhesive layer. The film sheet is bent and fixed on the lower surface of the back plate through the second adhesive layer. The invention also provides a display device comprising the backlight module. The backlight module and the display device have better structural reliability and better display quality.
Description
Technical Field
The present invention relates to a light source module and a display device, and more particularly, to a backlight module and a display device using the same.
Background
In the current architecture of the backlight module, the light guide plate is fixed inside the back plate by a double-sided tape at the top side facing the screen, and no fixing structure is arranged at the ground side opposite to the top side, and the light emitting diode directly contacts the light incident surface of the light guide plate. However, in the above-mentioned fixing method of the light guide plate, the light guide plate undergoes thermal expansion and cold contraction during the reliability test, so that the ground side of the light guide plate and the light emitting diode are changed from the original close contact to generate a gap. Therefore, the structural reliability of the backlight module is reduced, and the uniformity of the picture of the display device adopting the backlight module is poor. Therefore, how to improve the problem of the backlight module caused by expansion with heat and contraction with cold in the reliability test is an important issue that needs to be overcome at present.
The background section is only provided to aid in understanding the present disclosure, and thus the disclosure in the background section may include some prior art that does not constitute a part of the knowledge of one skilled in the art. The disclosure in the "background" section does not represent a representation of the disclosure or the problems that may be solved by one or more embodiments of the present invention, but is known or appreciated by those skilled in the art prior to the filing of the present application.
Disclosure of Invention
The invention provides a backlight module, which can avoid the problems caused by expansion with heat and contraction with cold in the reliability test and has better structural reliability.
The invention provides a display device which comprises the backlight module and has better display quality.
Other objects and advantages of the present invention will be further understood from the technical features disclosed in the present invention.
In order to achieve one or a part of or all of the above objectives or other objectives, an embodiment of the invention provides a backlight module, which includes a back plate, a light guide plate, a light source assembly, and a fixing assembly. The back plate is provided with a bottom surface and a lower surface which are opposite to each other. The light guide plate is arranged on the back plate and is provided with a light incident surface. The light source assembly is arranged on the back plate and comprises a substrate and at least one light-emitting element positioned on the substrate. The light emitting element is arranged on the light incident surface of the light guide plate. At least one part of the fixing assembly is arranged between the substrate of the light source assembly and the bottom surface of the back plate and comprises a film sheet with a first surface and a second surface which are opposite to each other, a first adhesive layer positioned on the first surface and a second adhesive layer positioned on the second surface. The substrate of the light source component is fixed on the first surface of the film sheet through the first adhesive layer. The film sheet is bent and fixed on the lower surface of the back plate through the second adhesive layer.
In order to achieve one or a part of or all of the above or other objects, an embodiment of the invention provides a display device including a backlight module and a display panel. The backlight module comprises a back plate, a light guide plate, a light source component and a fixing component. The back plate is provided with a bottom surface and a lower surface which are opposite to each other. The light guide plate is arranged on the back plate and is provided with a light incident surface. The light source assembly is arranged on the back plate and comprises a substrate and at least one light-emitting element positioned on the substrate. The light emitting element is arranged on the light incident surface of the light guide plate. At least one part of the fixing assembly is arranged between the substrate of the light source assembly and the bottom surface of the back plate and comprises a film sheet with a first surface and a second surface which are opposite to each other, a first adhesive layer positioned on the first surface and a second adhesive layer positioned on the second surface. The substrate of the light source component is fixed on the first surface of the film sheet through the first adhesive layer. The film sheet is bent and fixed on the lower surface of the back plate through the second adhesive layer. The display panel is configured on the backlight module.
Based on the above, the embodiments of the invention have at least one of the following advantages or efficacies. In the design of the backlight module, the fixing component is arranged between the substrate of the light source component and the bottom surface of the back plate and comprises a film sheet, a first adhesive layer positioned on the first surface and a second adhesive layer positioned on the second surface. The substrate of the light source component is fixed on the first surface of the film sheet through the first adhesive layer, and the film sheet is bent and fixed on the lower surface of the back plate through the second adhesive layer. Therefore, when the light guide plate expands at high temperature, the ground side is still fixed by the fixing component, so that the distance relationship between the light guide plate and the light-emitting element cannot be changed after cooling and shrinking. Therefore, the backlight module of the invention has better structural reliability, and the display device adopting the backlight module of the invention has better display quality.
Drawings
Fig. 1 is a schematic diagram of a display device according to an embodiment of the invention.
Fig. 2A is a schematic cross-sectional view of a backlight module of the display device of fig. 1.
Fig. 2B is a schematic bottom view of the back plate of the backlight module of fig. 2A.
Fig. 3 is a partial perspective cross-sectional view of a backlight module according to another embodiment of the invention.
Fig. 4 is a schematic cross-sectional view of a backlight module according to another embodiment of the invention.
List of reference numerals
10 display device
100a, 100b, 100c backlight module
110 back plate
112: bottom
113 bottom surface
114 first side part
115 lower surface
116 second side part
117 lateral surface
120 light guide plate
122 incident light surface
124 light-emitting surface
126 back side
130 light source assembly
132 substrate
134 light emitting element
140a fixing member
141 first surface
142. 142' film sheet
142a, 142 a': a first part
142b second part
142c, 142 c' are bent parts
143 second surface
144a, 144b a first adhesive layer
146 second adhesive layer
150 reflective sheet
160 optical film group
170 rubber frame
180. 185 adhesive layer
200 display panel
H, breaking the hole.
Detailed Description
The foregoing and other technical and scientific aspects, features and utilities of the present invention will be apparent from the following detailed description of a preferred embodiment when read in conjunction with the accompanying drawings. Directional terms as referred to in the following examples, for example: up, down, left, right, front or rear, etc., are simply directions with reference to the drawings. Accordingly, the directional terminology is used for purposes of illustration and is in no way limiting.
Fig. 1 is a schematic diagram of a display device according to an embodiment of the invention. Referring to fig. 1, in the present embodiment, a display device 10 includes a backlight module 100a and a display panel 200. The display panel 200 is, for example, a liquid crystal display panel and is disposed on the backlight module 100 a. The backlight module 100a is used for providing light required by the display panel 200 to display images.
Fig. 2A is a schematic cross-sectional view of a backlight module of the display device of fig. 1. Referring to fig. 2A, in the present embodiment, a backlight module 100a includes a back plate 110, a light guide plate 120, a light source assembly 130 and a fixing assembly 140 a. The back plate 110 has a bottom surface 113 and a lower surface 115 opposite to each other. The light guide plate 120 is disposed on the back plate 110 and has a light incident surface 122. The light source assembly 130 is disposed on the back plate 110 and includes a substrate 132 and at least one light emitting element 134 (one is schematically shown) disposed on the substrate 132, the substrate 132 is, for example, a circuit board, and the light emitting element 134 is, for example, a light emitting diode and is disposed on the light incident surface 122 of the light guide plate 120. Further, the light guide plate 120 further includes a light emitting surface 124 and a back surface 126 opposite to each other, and the light incident surface 122 connects the light emitting surface 124 and the back surface 126, that is, the backlight module 100a of the embodiment is embodied as a side-incident backlight module. Specifically, the light emitting element 134 directly contacts the light incident surface 122 of the light guide plate 120, i.e., there is no gap between the light emitting element 134 and the light incident surface 122 of the light guide plate 120. The fixing element 140a includes a film sheet 142 having a first surface 141 and a second surface 143 opposite to each other, a first adhesive layer 144a on the first surface 141, and a second adhesive layer 146 on the second surface 143, at least one portion of the fixing element 140a is disposed between the substrate 132 of the light source assembly 130 and the bottom surface 113 of the back plate 110, and at least another portion is disposed on the lower surface 115, for example. In particular, the substrate 132 of the light source assembly 130 is fixed on the first surface 141 of the film sheet 142 through the first adhesive layer 144 a. The film sheet 142 is bent and fixed on the lower surface 115 of the back plate 110 through the second adhesive layer 146.
More specifically, fig. 2B is a schematic bottom view of the back plate of the backlight module of fig. 2A. Referring to fig. 2A and fig. 2B, the back plate 110 of the present embodiment includes a bottom 112, a first side portion 114 connected to the bottom 112, and a second side portion 116 opposite to the first side portion 114 and connected to the bottom 112. The bottom 112 has a bottom surface 113 and a lower surface 115, and the light emitting element 134 is located between the first side 114 and the light guide plate 120. In particular, at least one hole H is formed between the first side portion 114 and the bottom portion 112, and the film sheet 142 of the fixing element 140a is bent onto the lower surface 115 of the bottom portion 112 through the hole H. As shown in fig. 2B, the number of the holes H in the embodiment is 2, which may be equally distributed at the connection point of the first side portion 114 and the bottom portion 112, but is not limited thereto. Specifically, in an embodiment, the first side portion 114 of the back plate 110 may also extend to above the light source element 130, and may also extend to above a portion of the light emitting surface 124 of the light guide plate 120, which is not limited in the disclosure.
Moreover, the bottom 112 of the back plate 110 of the present embodiment further includes a side surface 117 connecting the bottom surface 113 and the lower surface 115, and the side surface 117 is located in the hole H, for example. The film sheet 142 includes a first portion 142a, a second portion 142b, and a bent portion 142c connecting the first portion 142a and the second portion 142 b. The first adhesive layer 144a is disposed on the first portion 142a, the second adhesive layer 146 is disposed on the second portion 142b, and the bending portion 142c covers the side 117 of the bottom 112. More specifically, the first portion 142a of the film sheet 142 and the first adhesive layer 144a are located between the substrate 132 and the bottom surface 113 of the back plate 110, and the second portion 142b of the film sheet 142 and the second adhesive layer 146 are located on the lower surface 115 of the back plate 110. The first portion 142a of the film sheet 142 does not include the second adhesive layer 146, and the first surface 141 does not include the second adhesive layer 146. The second portion 142b of the film sheet 142 does not include the first adhesive layer 144a, and the second surface 143 does not include the first adhesive layer 144 a. The bent portion 142c does not include the first adhesive layer 144a and the second adhesive layer 146, and for the purpose of enhancing the fixing, the bent portion 142c can further directly contact the side surface 117 of the bottom portion 112. In another embodiment, the bending portion 142c may also include the second adhesive layer 146, i.e., the second adhesive layer 146 may extend to the bending portion 142c, and the second adhesive layer 146 may directly contact the bending portion 142c and the side surface 117 of the bottom portion 112. Here, the material of the film sheet 142 includes a polyester resin such as Mylar (Mylar), but is not limited thereto.
In addition, the backlight module 100a of the present embodiment may further optionally include a reflective sheet 150, wherein the reflective sheet 150 is disposed between the light guide plate 120 and the bottom 112 of the back plate 110 and is adapted to reflect the light emitted by the light emitting element 134 to the light guide plate 120, so as to improve the light utilization rate of the backlight module 100 a. The backlight module 100a may further optionally include an optical film set 160, wherein the optical film set 160 is disposed on the light-emitting surface 124 of the light guide plate 120, so that the light emitted from the light-emitting element 134 becomes a uniform surface light source. Here, the optical film group 160 is, for example, a diffusion sheet (Diffuser film), a Brightness Enhanced Film (BEF), a Prism sheet (Prism sheet), or a combination of the above films, but is not limited thereto.
In addition, the backlight module 100a of the present embodiment may further optionally include a rubber frame 170 and an adhesive layer 185. The adhesive frame 170 is disposed on the bottom 112 of the back plate 110, and the adhesive layer 185 is disposed between the second side 116 of the back plate 110 and the adhesive frame 170, wherein the adhesive frame 170 is fixed on the second side 116 through the adhesive layer 185. In order to further fix the light guide plate 120 and the light source assembly 130, the backlight module 100a of the present embodiment further includes an adhesive layer 180, wherein the adhesive layer 180 is disposed between the back surface 126 of the light guide plate 120 and the substrate 132 of the light source assembly 130, and the light guide plate 120 is fixed on the light source assembly 130 through the adhesive layer 180.
In assembly, the back surface 126 of the light guide plate 120 is fixed to the substrate 132 of the optical assembly 130 through the adhesive layer 180. At this time, the light emitting element 134 of the optical assembly 130 directly contacts the light incident surface 122 of the light guide plate 120. Next, the substrate 132 of the optical assembly 130 is fixed on the first surface 141 of the film sheet 142 through the first adhesive layer 144a of the fixing assembly 140 a. Then, the reflective sheet 150 is assembled in the back plate 110, the adhered light source assembly 130, the light guide plate 120 and the fixing assembly 140a are assembled in the back plate 110, the thin film sheet 142a of the fixing assembly 140a passes through the hole H of the back plate 110, and then the optical film set 160 is assembled on the light emitting surface 124 of the light guide plate 120. Finally, the film sheet 142 passing through the hole H of the back plate 110 is bent to the lower surface 115 of the bottom 112 and fixed on the lower surface 115 of the bottom 112 through the second adhesive layer 146, thereby completing the assembly of the backlight module 100 a. In addition, after the reliability test of the backlight module 100a of the present embodiment, the optical luminance of the backlight module 100a is decreased by less than 4%, and the frame uniformity of the display device 10 is decreased by less than 9%, so that the optical degradation of the backlight module after the reliability test is significantly reduced.
In short, since the substrate 132 of the light source assembly 130 is fixed on the first surface 141 of the film sheet 142 through the first adhesive layer 144a, the film sheet 142 is bent and fixed on the lower surface 115 of the back plate 110 through the second adhesive layer 146. Therefore, when the light guide plate 120 expands at a high temperature, the ground side is still fixed by the fixing component 140a, so that the distance relationship between the light guide plate 120 and the light emitting element 134 is not changed after cooling and shrinking. That is, the light incident surface 122 of the light guide plate 120 still relatively maintains direct contact with the light emitting element 134. In this way, the backlight module 100a of the present embodiment has better structural reliability, and the display device 10 of the present embodiment has better display quality.
It should be noted that the following embodiments follow the reference numerals and parts of the contents of the foregoing embodiments, wherein the same reference numerals are used to indicate the same or similar elements, and the description of the same technical contents is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, and the following embodiments will not be repeated.
Fig. 3 is a partial perspective cross-sectional view of a backlight module according to another embodiment of the invention. The backlight module 100b of the present embodiment is similar to the backlight module 100a of fig. 2A, and the difference between the two is: the bent portion 142c 'of the present embodiment covers the side 117 of the bottom portion 112, and a gap G is formed between the bent portion 142 c' and the side 117 of the bottom portion 112 instead of direct contact.
Fig. 4 is a schematic cross-sectional view of a backlight module according to another embodiment of the invention. The backlight module 100c of the present embodiment is similar to the backlight module 100a of fig. 2A, and the difference between the two is: the film sheet 142 'and the first adhesive layer 144b of the present embodiment further extend between the reflective sheet 150 and the bottom 112 of the back plate 110, wherein the reflective sheet 150 is fixed on the first surface 141 of the film sheet 142' through the first adhesive layer 144 b.
In summary, the embodiments of the invention have at least one of the following advantages or effects. In the design of the backlight module, the fixing component is arranged between the substrate of the light source component and the bottom surface of the back plate and comprises a film sheet, a first adhesive layer positioned on the first surface and a second adhesive layer positioned on the second surface. The substrate of the light source component is fixed on the first surface of the film sheet through the first adhesive layer, and the film sheet is bent and fixed on the lower surface of the back plate through the second adhesive layer. Therefore, when the light guide plate expands at high temperature, the ground side is still fixed by the fixing component, so that the distance relationship between the light guide plate and the light-emitting element cannot be changed after cooling and shrinking. Therefore, the backlight module of the invention has better structural reliability, and the display device adopting the backlight module of the invention has better display quality.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, which is defined by the appended claims and their equivalents. It is not necessary for any embodiment or claim of the invention to achieve all of the objects or advantages or features disclosed herein. Furthermore, the abstract and the title of the specification are provided only for assisting the retrieval of patent documents and are not intended to limit the scope of the present invention. Furthermore, the terms "first", "second", and the like in the description or the claims are used only for naming elements (elements) or distinguishing different embodiments or ranges, and are not used for limiting the upper limit or the lower limit on the number of elements.
Claims (10)
1. A backlight module comprises a back plate, a light guide plate, a light source assembly and a fixing assembly,
the back plate is provided with a bottom surface and a lower surface which are opposite to each other;
the light guide plate is arranged on the back plate and is provided with a light incident surface;
the light source assembly is arranged on the back plate and comprises a substrate and at least one light-emitting element positioned on the substrate, wherein the at least one light-emitting element is configured on the light incident surface of the light guide plate;
at least a portion of the fixing assembly is disposed between the substrate of the light source assembly and the bottom surface of the back plate, and includes a film sheet having a first surface and a second surface opposite to each other, a first adhesive layer on the first surface, and a second adhesive layer on the second surface, wherein the substrate of the light source assembly is fixed on the first surface of the film sheet through the first adhesive layer, and the film sheet is bent and fixed on the lower surface of the back plate through the second adhesive layer.
2. The backlight module of claim 1, wherein the back plate comprises a bottom portion and a first side portion connecting the bottom portion, the bottom portion has the bottom surface and the lower surface, the at least one light emitting element is located between the first side portion and the light guide plate, at least one hole is formed between the first side portion and the bottom portion, and the film sheet of the fixing assembly is bent onto the lower surface of the bottom portion through the at least one hole.
3. The backlight module of claim 2, wherein the bottom of the back plate further comprises a side surface connecting the bottom surface and the lower surface, the film sheet comprises a first portion, a second portion and a bent portion connecting the first portion and the second portion, the first adhesive layer is disposed on the first portion, the second adhesive layer is disposed on the second portion, and the bent portion covers the side surface of the bottom.
4. The backlight module of claim 2, further comprising a reflective sheet,
the reflective sheet is disposed between the light guide plate and the bottom of the back plate, wherein the film sheet and the first adhesive layer further extend between the reflective sheet and the bottom of the back plate, and the reflective sheet is fixed on the first surface of the film sheet through the first adhesive layer.
5. The backlight module of claim 2, wherein the back plate further comprises a second side portion connected to the bottom portion, the backlight module further comprises a glue frame and an adhesive layer, wherein,
the rubber frame is arranged on the bottom of the back plate;
the adhesive layer is arranged between the second side part of the back plate and the rubber frame, wherein the rubber frame is fixed on the second side part through the adhesive layer.
6. The backlight module of claim 2, wherein the number of the at least one hole is 2.
7. The backlight module of claim 1, further comprising an adhesive layer,
the light guide plate is provided with a light emitting surface and a back surface which are opposite to each other and a light incident surface which is connected with the light emitting surface and the back surface, the adhesion layer is arranged between the back surface of the light guide plate and the substrate of the light source component, and the light guide plate is fixed on the light source component through the adhesion layer.
8. The backlight module of claim 1, wherein the at least one light emitting element directly contacts the light incident surface of the light guide plate.
9. The backlight module of claim 1, wherein the material of the film sheet comprises a polyester resin.
10. A display device comprises a backlight module and a display panel,
the backlight module comprises a back plate, a light guide plate, a light source assembly and a fixing assembly, wherein,
the back plate is provided with a bottom surface and a lower surface which are opposite to each other;
the light guide plate is arranged on the back plate and is provided with a light incident surface;
the light source assembly is arranged on the back plate and comprises a substrate and at least one light-emitting element positioned on the substrate, wherein the at least one light-emitting element faces the light incident surface of the light guide plate;
at least a portion of the fixing assembly is disposed between the substrate of the light source assembly and the bottom surface of the back plate, and includes a film sheet having a first surface and a second surface opposite to each other, a first adhesive layer on the first surface, and a second adhesive layer on the second surface, wherein the substrate of the light source assembly is fixed on the first surface of the film sheet through the first adhesive layer, and the film sheet is bent and fixed on the lower surface of the back plate through the second adhesive layer;
the display panel is configured on the backlight module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010381294.2A CN113625486B (en) | 2020-05-08 | 2020-05-08 | Backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010381294.2A CN113625486B (en) | 2020-05-08 | 2020-05-08 | Backlight module and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113625486A true CN113625486A (en) | 2021-11-09 |
| CN113625486B CN113625486B (en) | 2022-12-27 |
Family
ID=78377147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010381294.2A Active CN113625486B (en) | 2020-05-08 | 2020-05-08 | Backlight module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113625486B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100149836A1 (en) * | 2008-12-12 | 2010-06-17 | Yu-Min Hung | Backlight module |
| CN101943350A (en) * | 2009-07-03 | 2011-01-12 | 中强光电股份有限公司 | Backlight module |
| CN102003661A (en) * | 2010-11-03 | 2011-04-06 | 深圳市华星光电技术有限公司 | Edge-type backlight module and liquid crystal display |
| CN102322601A (en) * | 2011-10-12 | 2012-01-18 | 深圳市华星光电技术有限公司 | Light-emitting diode (LED) backlight module and liquid crystal display device |
| CN102878480A (en) * | 2012-08-22 | 2013-01-16 | 深圳市华星光电技术有限公司 | Sidelight backlight module |
| US20130258717A1 (en) * | 2012-03-28 | 2013-10-03 | Samsung Electronics Co., Ltd. | Backlight unit and image display apparatus having the same |
| CN105570757A (en) * | 2014-10-13 | 2016-05-11 | 苏州璨宇光学有限公司 | Backlight module |
| KR20160080857A (en) * | 2014-12-29 | 2016-07-08 | 엘지디스플레이 주식회사 | Back light unit and liquid crystal display device having the same |
| CN208872901U (en) * | 2018-10-22 | 2019-05-17 | 中强光电股份有限公司 | Backlight module |
-
2020
- 2020-05-08 CN CN202010381294.2A patent/CN113625486B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100149836A1 (en) * | 2008-12-12 | 2010-06-17 | Yu-Min Hung | Backlight module |
| CN101943350A (en) * | 2009-07-03 | 2011-01-12 | 中强光电股份有限公司 | Backlight module |
| CN102003661A (en) * | 2010-11-03 | 2011-04-06 | 深圳市华星光电技术有限公司 | Edge-type backlight module and liquid crystal display |
| CN102322601A (en) * | 2011-10-12 | 2012-01-18 | 深圳市华星光电技术有限公司 | Light-emitting diode (LED) backlight module and liquid crystal display device |
| US20130258717A1 (en) * | 2012-03-28 | 2013-10-03 | Samsung Electronics Co., Ltd. | Backlight unit and image display apparatus having the same |
| CN102878480A (en) * | 2012-08-22 | 2013-01-16 | 深圳市华星光电技术有限公司 | Sidelight backlight module |
| CN105570757A (en) * | 2014-10-13 | 2016-05-11 | 苏州璨宇光学有限公司 | Backlight module |
| KR20160080857A (en) * | 2014-12-29 | 2016-07-08 | 엘지디스플레이 주식회사 | Back light unit and liquid crystal display device having the same |
| CN208872901U (en) * | 2018-10-22 | 2019-05-17 | 中强光电股份有限公司 | Backlight module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113625486B (en) | 2022-12-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100380769B1 (en) | Backlight unit and display device using the same backlight unit | |
| KR101001405B1 (en) | Liquid crystal display device | |
| JP5024793B2 (en) | Display device | |
| US8724049B2 (en) | Backlight unit and liquid crystal display having the same | |
| KR101035502B1 (en) | liquid crystal display module using LED | |
| CN101749596B (en) | Backlight unit and liquid crystal display device having the same | |
| US7796214B2 (en) | Liquid crystal display having flexible printed circuit sandwiched between liquid crystal panel and light guide plate thereof | |
| US8508694B2 (en) | Display with dual-edge light-emitting-diode backlight | |
| US20040004424A1 (en) | Radiating member,illuminating device, electro-optical device, and electronic device | |
| CN102102831A (en) | Backlight unit and liquid crystal display device having the same | |
| US20190204494A1 (en) | Display screen and display device | |
| KR100942140B1 (en) | Liquid Crystal Display Module And Assembling Method Thereof | |
| KR20150065037A (en) | Bottom chassis for display device and display device comprising the same | |
| EP3819706A1 (en) | Image display device | |
| JP5312919B2 (en) | Liquid crystal display | |
| WO2019142620A1 (en) | Surface light source device, display device, and electronic device | |
| KR20090053681A (en) | Liquid crystal display device | |
| CN113625486B (en) | Backlight module and display device | |
| TWM265638U (en) | A liquid crystal display and a backlight module thereof | |
| JP4760699B2 (en) | Planar light source device and image display device using the same | |
| KR102490168B1 (en) | Display Device | |
| KR101276858B1 (en) | Circuit board, backlight unit, and liquid crystal display using the same | |
| JP2002109929A (en) | Flat display device | |
| CN114063344A (en) | Light source module and display device | |
| KR20070000855A (en) | Liquid crystal display module which comprises means for preventing light leakage |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |