CN111025756A - Side-in backlight structure and display device - Google Patents
Side-in backlight structure and display device Download PDFInfo
- Publication number
- CN111025756A CN111025756A CN201911312802.5A CN201911312802A CN111025756A CN 111025756 A CN111025756 A CN 111025756A CN 201911312802 A CN201911312802 A CN 201911312802A CN 111025756 A CN111025756 A CN 111025756A
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- Prior art keywords
- guide plate
- light guide
- light
- backlight structure
- lamp panel
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- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention provides a lateral entrance type backlight structure and a display device, wherein the lateral entrance type backlight structure comprises: frame, lamp plate, reflector plate, first light guide plate and second light guide plate. The diffusion particles are arranged in the first light guide plate and used for scattering light rays, so that the light mixing effect of the light guide plate is improved; when light rays are scattered after encountering diffusion particles, the light mixing distance of the light guide plate is greatly reduced, and meanwhile, because the light rays are scattered, the light rays cannot be gathered at the position of the R angle at the bottom of the light incident side, so that the condition of the R angle at the bottom of the light incident side is avoided, and meanwhile, the light rays are scattered by the diffusion particles, so that the defect of a shadow in front of a lamp is obviously improved. When light passes through the first light guide plate, the light is scattered to form a light band, and then passes through the second light guide plate, so that the optical effect is obviously improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a lateral backlight structure and a display device.
Background
The backlight source is an important component of the liquid crystal display panel, and provides a light source for the liquid crystal display panel, and the optical effect of the backlight source is directly related to the visual effect of the liquid crystal display. With the development of science and technology, the market demands for liquid crystal displays are becoming more stringent, and the demands for backlight sources are also becoming more stringent. Due to the trend of the full-face screen, the screen ratio is an important parameter for measuring the backlight module at present. The visible area screen occupation ratio is the proportion of the visible area of the backlight module to the whole area of the backlight module.
The existing main factor influencing the ratio of a backlight screen of a mobile phone is the boundary of the light incident side, and in the solution in the prior art, after a light bar and a lamp panel are assembled, the lamp panel can be stuck to a frame body at the bottom of the backlight through an adhesive tape, so that the conventional adhesive frame for sticking the light bar is reduced, and the effect of reducing the boundary of the light incident side is achieved. But the following disadvantages are present: 1. as shown in fig. 1, due to the light emitting condition of the LED lamp, light is condensed at the bottom R corner 11, so that a shadow 12 is generated at the bottom R corner 11; 2. the width of a glue frame for bonding the lamp strip is reduced, the light mixing effect is poor (the light mixing distance is not reduced, and the light mixing distance can only be compressed), the glowworm effect (Hotspot) in front of the lamp is caused, and the optical effect is influenced.
Therefore, the invention provides a lateral type backlight structure and a display device, which are used for reducing bottom R-angle condensation and improving light mixing effect.
Disclosure of Invention
The invention provides a lateral entrance type backlight structure and a display device, which are used for reducing bottom R-angle condensation and improving light mixing effect.
The invention provides a side-in backlight structure, which is characterized by comprising: a frame body; the lamp panel is arranged on the frame body, and a backlight source is arranged on the lamp panel; the reflector plate is arranged on the frame body; the first light guide plate is arranged on the lamp panel and abutted against the light-emitting surface of the backlight source, and the first light guide plate comprises diffusion particles; and the second light guide plate is arranged on the reflector plate and connected with the first light guide plate.
Further, the second light guide plate also comprises diffusion particles.
Further, still include: the diffusion sheet is arranged on the first light guide plate and the second light guide plate; the brightness enhancement sheet is arranged on the diffusion sheet.
Further, the heights of the first light guide plate and the second light guide plate are the same; the upper surface of the first light guide plate is flush with the upper surface of the second light guide plate.
Further, a first supporting block is arranged between the first light guide plate and the lamp panel.
Further, the lamp panel is attached to the bottom of the frame body through an adhesive tape.
Further, the frame body comprises a first section, a dam and a second section; the second section is connected with one end of the dam and can support part of the reflecting sheet; the first section is connected with the other end of the dam and has a gap with part of the reflecting sheet; the first segment is parallel to the second segment.
Further, a second supporting block is arranged at the gap.
Furthermore, a gap is formed between the lamp panel and the reflector plate.
The invention provides a display device, which comprises the lateral type backlight structure.
The invention provides a side-in type backlight structure and a display device.A first light guide plate is internally provided with diffusion particles for scattering light rays and improving the light mixing effect of the light guide plate; when light rays are scattered after encountering diffusion particles, the light mixing distance of the light guide plate is greatly reduced, and meanwhile, because the light rays are scattered, the light rays cannot be gathered at the position of the R angle at the bottom of the light incident side, so that the condition of the R angle at the bottom of the light incident side is avoided, and meanwhile, the light rays are scattered by the diffusion particles, so that the defect of a shadow in front of a lamp is obviously improved. When light passes through the first light guide plate, the light is scattered to form a light band, and then passes through the second light guide plate, so that the optical effect is obviously improved.
Drawings
The technical solution and other advantages of the present invention will become apparent from the following detailed description of specific embodiments of the present invention, which is to be read in connection with the accompanying drawings.
FIG. 1 is a schematic diagram of a simulation of generating a dark shadow in a backlight structure of the prior art.
Fig. 2 is a schematic structural diagram of a lateral backlight structure according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a lateral backlight structure according to another embodiment of the present invention.
A frame body 101; a lamp panel 102; a reflective sheet 103;
a first light guide plate 104; a second light guide plate 105; a backlight 106;
a first support block 108; a second support block 107; a diffusion sheet 109;
a brightness enhancement film 110; an upper brightness enhancement film 1101; an upper brightness enhancement film 1102;
a first section 1011; a dam 1012; a second section 1013;
a third segment 1014.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.
An embodiment of the present invention provides a lateral backlight structure 100, which includes: the backlight module includes a housing 101, a lamp panel 102, a reflective sheet 103, a first light guide plate 104, and a second light guide plate 105.
The frame 101 includes a first section 1011, a dike 1012, a second section 1013, and a third section 1014. In this embodiment, the frame 101 is an iron frame.
The second section 1013 connects one end of the dike 1012, the second section 1013 connects the other end of the dike 1012, and the first section 1011 is parallel to the second section 1013. The third segment 1014 is perpendicularly connected to the first segment.
The lamp panel 102 is disposed on the frame 101, and a backlight source 106 is disposed on the lamp panel 102. In this embodiment, the lamp panel 102 is attached to the bottom of the frame 101 by an adhesive tape and is located at one end of the frame 101. Specifically, the lamp panel 102 is disposed on the first section 1011, and is attached to the first section 1011 by a tape.
The reflector plate 103 is disposed on the frame 101, and a gap is formed between the reflector plate 103 and the lamp panel 102.
The first light guide plate 104 is disposed on the lamp panel 102 and abuts against a light emitting surface of the backlight source 106, and a first supporting block 108 is disposed between the first light guide plate 104 and the lamp panel 102. The second light guide plate 105 is disposed on the reflective sheet 103 and connected to the first light guide plate 104.
The upper surface of the first light guide plate 104 is flush with the upper surface of the second light guide plate 105. The heights of the first light guide plate 104 and the second light guide plate 105 are the same.
In the invention, the lamp panel 102 is arranged on the first section of the frame body 101, so that the technical effect of a narrow frame can be realized. Due to the structure of the housing 101, the lamp panel 102 can be assembled. The first light guide plate 104 and the second light guide plate 105 can be leveled by the second supporting block 107 and the first supporting block 108.
Specifically, the second supporting block 107 supports a portion of the reflective sheet 103, and the second supporting block 107 is disposed between a portion of the reflective sheet 103 and the gap of the first segment.
The first supporting block 108 is disposed between the lamp panel 102 and the first light guide plate 104, so that the upper and lower sides of the first light guide plate 104 and the second light guide plate 105 are flush with each other.
A second supporting block 107 is disposed between the reflective sheet 103 and the first section 1011. Since there is a height difference between the first section 1011 and the second section 1013, a second supporting block 107 is required to fill the height difference to support the reflecting sheet 103.
The first light guide plate 104 includes diffusion particles to scatter light and improve the light mixing effect of the light guide plate. When light rays are scattered after encountering diffusion particles, the light mixing distance of the light guide plate is greatly reduced, and meanwhile, because the light rays are scattered, optical gathering (as shown in figure 1) cannot occur at the position of the R angle (positioned at the bottom of one end, close to the backlight source, of the first light guide plate) at the bottom of the light incident side, so that the condition of the R angle at the bottom of the light incident side is avoided, and meanwhile, the light rays are scattered due to the existence of the diffusion particles, so that the defect of a dark shadow in front of a lamp is obviously improved.
The side-in backlight structure further comprises: a diffusion sheet 109 and a brightness enhancement sheet 110.
The diffusion sheet 109 is disposed on the first light guide plate 104 and the second light guide plate 105;
the brightness enhancement sheet is disposed on the diffusion sheet 109, the brightness enhancement sheet 110 includes an upper brightness enhancement sheet 1101 and a lower brightness enhancement sheet 1102, and the upper brightness enhancement sheet 1101 is disposed on the lower brightness enhancement sheet 1102.
The invention also provides a display device which comprises the lateral entrance type backlight structure.
The invention provides a side-in type backlight structure, comprising: the backlight module includes a housing 101, a lamp panel 102, a reflective sheet 103, a first light guide plate 104, and a second light guide plate 105.
The frame 101 includes a first section 1011, a dike 1012, a second section 1013, and a third section 1014. In this embodiment, the frame 101 is an iron frame.
The second section 1013 connects one end of the dike 1012, the second section 1013 connects the other end of the dike 1012, and the first section 1011 is parallel to the second section 1013. The third segment 1014 is perpendicularly connected to the first segment.
The lamp panel 102 is disposed on the frame 101, and a backlight source 106 is disposed on the lamp panel 102. In this embodiment, the lamp panel 102 is attached to the bottom of the frame 101 by an adhesive tape and is located at one end of the frame 101. Specifically, the lamp panel 102 is disposed on the first section 1011, and is attached to the first section 1011 by a tape.
The reflector plate 103 is disposed on the frame 101, and a gap is formed between the reflector plate 103 and the lamp panel 102.
The first light guide plate 104 is disposed on the lamp panel 102 and abuts against a light emitting surface of the backlight source 106, and a first supporting block 108 is disposed between the first light guide plate 104 and the lamp panel 102. The second light guide plate 105 is disposed on the reflective sheet 103 and connected to the first light guide plate 104.
The upper surface of the first light guide plate 104 is flush with the upper surface of the second light guide plate 105. The heights of the first light guide plate 104 and the second light guide plate 105 are the same.
In the invention, the lamp panel 102 is arranged on the first section of the frame body 101, so that the technical effect of a narrow frame can be realized. Due to the structure of the housing 101, the lamp panel 102 can be assembled. The first light guide plate 104 and the second light guide plate 105 can be leveled by the second supporting block 107 and the first supporting block 108.
Specifically, the second supporting block 107 supports a portion of the reflective sheet 103, and the second supporting block 107 is disposed between a portion of the reflective sheet 103 and the gap of the first segment.
The first supporting block 108 is disposed between the lamp panel 102 and the first light guide plate 104, so that the upper and lower sides of the first light guide plate 104 and the second light guide plate 105 are flush with each other.
A second supporting block 107 is disposed between the reflective sheet 103 and the first section 1011. Since there is a height difference between the first section 1011 and the second section 1013, a second supporting block 107 is required to fill the height difference to support the reflecting sheet 103.
Another embodiment of the invention provides a lateral backlight structure 100 a. The second light guide plate 105a also includes diffusion particles therein. I.e. another embodiment provides the entire light guide plate with diffusing particles.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The present invention has been described in detail, and the principle and the implementation of the present invention are explained by applying specific examples, and the description of the above examples is only used to help understanding the technical scheme and the core idea of the present invention; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A lateral backlight structure, comprising:
a frame body;
the lamp panel is arranged on the frame body, and a backlight source is arranged on the lamp panel;
the reflector plate is arranged on the frame body;
the first light guide plate is arranged on the lamp panel and abutted against the light-emitting surface of the backlight source, and comprises diffusion particles;
and the second light guide plate is arranged on the reflector plate and connected with the first light guide plate.
2. The edge-lit backlight structure of claim 1,
the second light guide plate includes diffusion particles.
3. The edge-lit backlight structure of claim 1, further comprising:
the diffusion sheet is arranged on the first light guide plate and the second light guide plate;
the brightness enhancement sheet is arranged on the diffusion sheet.
4. The edge-lit backlight structure of claim 1,
the heights of the first light guide plate and the second light guide plate are the same;
the upper surface of the first light guide plate is flush with the upper surface of the second light guide plate.
5. The edge-lit backlight structure of claim 1,
a first supporting block is arranged between the first light guide plate and the lamp panel.
6. The edge-lit backlight structure of claim 1,
the lamp panel is attached to the bottom of the frame body through an adhesive tape.
7. The edge-lit backlight structure of claim 1,
the frame body comprises a first section, a dam and a second section;
the second section is connected with one end of the dam and can support part of the reflecting sheet;
the first section is connected with the other end of the dam and has a gap with part of the reflecting sheet;
the first segment is parallel to the second segment.
8. The edge-lit backlight structure of claim 7,
and a second supporting block is arranged at the gap.
9. The edge-lit backlight structure of claim 1,
a gap is arranged between the lamp panel and the reflector plate.
10. A display device, comprising the lateral backlight structure of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911312802.5A CN111025756A (en) | 2019-12-18 | 2019-12-18 | Side-in backlight structure and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911312802.5A CN111025756A (en) | 2019-12-18 | 2019-12-18 | Side-in backlight structure and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111025756A true CN111025756A (en) | 2020-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911312802.5A Pending CN111025756A (en) | 2019-12-18 | 2019-12-18 | Side-in backlight structure and display device |
Country Status (1)
| Country | Link |
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| CN (1) | CN111025756A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040062201A (en) * | 2002-12-31 | 2004-07-07 | 엘지.필립스 엘시디 주식회사 | Backlight unit for LCD |
| CN101078834A (en) * | 2006-05-24 | 2007-11-28 | 统宝光电股份有限公司 | Electronic device and its backlight module |
| CN102980099A (en) * | 2012-11-23 | 2013-03-20 | 友达光电股份有限公司 | Backlight module |
| CN103511912A (en) * | 2012-06-27 | 2014-01-15 | 鑫成科技(成都)有限公司 | Backlight module, liquid crystal display device and light source module |
-
2019
- 2019-12-18 CN CN201911312802.5A patent/CN111025756A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040062201A (en) * | 2002-12-31 | 2004-07-07 | 엘지.필립스 엘시디 주식회사 | Backlight unit for LCD |
| CN101078834A (en) * | 2006-05-24 | 2007-11-28 | 统宝光电股份有限公司 | Electronic device and its backlight module |
| CN103511912A (en) * | 2012-06-27 | 2014-01-15 | 鑫成科技(成都)有限公司 | Backlight module, liquid crystal display device and light source module |
| CN102980099A (en) * | 2012-11-23 | 2013-03-20 | 友达光电股份有限公司 | Backlight module |
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