CN107247363B - Side light type backlight module, light source and display panel thereof - Google Patents
Side light type backlight module, light source and display panel thereof Download PDFInfo
- Publication number
- CN107247363B CN107247363B CN201710526352.4A CN201710526352A CN107247363B CN 107247363 B CN107247363 B CN 107247363B CN 201710526352 A CN201710526352 A CN 201710526352A CN 107247363 B CN107247363 B CN 107247363B
- Authority
- CN
- China
- Prior art keywords
- light
- light emitting
- backlight module
- light source
- emitting unit
- 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.)
- Active
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
-
- 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
- G02B6/0066—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 characterised by the light source being coupled to the light guide
-
- 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
- G02B6/0066—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 characterised by the light source being coupled to the light guide
- G02B6/0073—Light emitting diode [LED]
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a side-light type backlight module, a light source and a display panel thereof. Light source of side light type backlight unit includes: the light emitting device comprises a flexible circuit board and a plurality of light emitting units, wherein the light emitting units are arranged on the flexible circuit board along a first direction; the light-emitting unit comprises a first surface, a second surface fixed with the flexible circuit board and a third surface arranged opposite to the second surface, wherein the first surface is adjacent to the second surface and the third surface respectively, and the first surface is a light-emitting surface of the light-emitting unit; the plurality of light emitting units include a first light emitting unit in which the second surface and the third surface are curved surfaces. The light source of the side-light type backlight module comprises a first light-emitting unit which is integrally of an arc-shaped structure, the first light-emitting unit is matched with an arc-shaped light guide plate with a bent part with the same radian to form the backlight module, and the arc-shaped light guide plate can completely cover the light-emitting surface of the first light-emitting unit, so that the problem of light leakage of the arc-shaped backlight module is solved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a side-light type backlight module, a light source thereof and a display panel.
Background
In the prior art, a Thin Film Transistor-Liquid Crystal Display (TFT-LCD) is a Display panel designed in a planar manner. At present, along with the development of the technology, in order to increase the display area and improve the display effect, a display panel with a left frame and a right frame which are arc-shaped is provided in the prior art.
The left and right frames of the display panel are arc-shaped, and the left and right sides of the backlight module matched with the display panel are required to be bent. The Light guide plate among the backlight unit passes through mould injection moulding, can make into the arc Light guide plate of buckling that the design needs, and the LED (Light Emitting Diode) lamp strip preparation mode that commonly uses among the backlight unit is to welding LED on the flexible circuit board through the welded mode, arc position on backlight unit left and right sides, LED lamp strip needs to have the radian of buckling the same with the Light guide plate radian of buckling, and the LED lamp itself that is located on LED lamp strip has certain length, and LED outer support is hard material, therefore, the Light guide plate in the district of buckling can not cover LED's Light Emitting area completely, lead to backlight unit Light leak phenomenon.
Therefore, it is an urgent need in the art to provide a side-light type backlight module, a light source thereof, and a display panel to solve the problem of light leakage of the arc-shaped backlight module.
Disclosure of Invention
In view of the above, the present invention provides a side-light type backlight module, a light source thereof and a display panel, which solve the above technical problems.
On the other hand, in order to solve the above-mentioned problems, the present invention provides a light source of an edge-lit backlight module,
side light type backlight unit's light source, the light source includes: the light emitting device comprises a flexible circuit board and a plurality of light emitting units, wherein the light emitting units are arranged on the flexible circuit board along a first direction;
the light-emitting unit comprises a first surface, a second surface fixed with the flexible circuit board and a third surface arranged opposite to the second surface, wherein the first surface is adjacent to the second surface and the third surface respectively, and the first surface is a light-emitting surface of the light-emitting unit;
the plurality of light emitting units include a first light emitting unit in which the second surface and the third surface are curved surfaces.
In another aspect, the present invention provides an edge-lit backlight module for solving the above problems.
The invention provides a side-light type backlight module, which comprises a light source and a light guide plate, wherein the light source is arranged at the first side of the light guide plate and is the light source of any side-light type backlight module provided by the invention; the light guide plate includes the crooked flexion of second side to the light guide plate, and first luminescence unit in the light source corresponds the setting with the flexion, and, the crooked degree of the second surface of first luminescence unit and third surface is the same with the crooked degree of flexion, and wherein, the second side of light guide plate sets up with the first side of light guide plate is adjacent.
In a third aspect, to solve the above technical problem, the present invention provides a display panel.
The display panel comprises any one of the side-light type backlight modules provided by the invention.
Compared with the prior art, the side-light type backlight module, the light source and the display panel thereof have the following beneficial effects that:
according to the light source of the side-light type backlight module, the plurality of light emitting units comprise the first light emitting unit which is integrally in an arc-shaped structure, the first light emitting unit is matched with the arc-shaped light guide plate with the same radian and the bent part to form the backlight module, the arc-shaped light guide plate can completely cover the light emitting surface of the first light emitting unit, the matching degree of the light emitting unit and the light guide plate is good, so that the problem of light leakage of the arc-shaped backlight module with the bent part is solved, meanwhile, the light source of the side-light type backlight module provided by the embodiment can adapt to different radian requirements of the curved surface light guide plate, the curved surface light guide plate can be more easily adapted to a special-shaped.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic view of a light source of an edge-lit backlight module according to an embodiment of the invention;
fig. 2 is a schematic diagram of an alternative embodiment of a light-emitting unit according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a first light-emitting unit according to an embodiment of the present invention;
FIG. 4 is a simplified schematic diagram of a cross-section of a first light-emitting unit according to an embodiment of the present invention;
fig. 5 is a schematic diagram of an alternative embodiment of a light source of an edge-lit backlight module according to an embodiment of the invention;
fig. 6 is a schematic diagram of another alternative embodiment of a light source of an edge-lit backlight module according to an embodiment of the present invention;
fig. 7 is a schematic diagram of another alternative embodiment of a light source of an edge-lit backlight module according to an embodiment of the invention;
FIG. 8 is a schematic top view of a side-view backlight module according to the present invention;
FIG. 9 is a schematic cross-sectional view of the light guide plate taken along line Q1 in FIG. 8;
FIG. 10 is a schematic view of an alternative embodiment of a cross-section of the light guide plate taken along line Q1 in FIG. 8;
fig. 11 is a schematic view of a display panel according to an embodiment of the invention.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
An embodiment of the invention provides a light source of a side-light type backlight module, referring to fig. 1, fig. 2, and fig. 3.
Fig. 1 is a schematic view of a light source of the edge-lit backlight module provided in this embodiment, as shown in fig. 1, the light source includes: a flexible circuit board 101 and a plurality of light emitting units 102, and the respective light emitting units 102 are arranged on the flexible circuit board 101 in a first direction a.
Fig. 2 is a schematic view of an alternative embodiment of the light emitting unit provided in this embodiment, as shown in fig. 2, the light emitting unit includes a first surface 1021, a second surface 1022 fixed to the flexible circuit board, and a third surface 1023 disposed opposite to the second surface 1022, wherein the first surface 1021, the second surface 1022, and the third surface 1023 are respectively adjacent to each other, the first surface 1021 is a light emitting surface of the light emitting unit, and the second surface 1022 is disposed opposite to the flexible circuit board. Optionally, the first surface 1021 is planar.
The plurality of light emitting units include a first light emitting unit, fig. 3 is a schematic diagram of the first light emitting unit provided in this embodiment, and as shown in fig. 3, the second surface 1022 and the third surface 1023 of the first light emitting unit are both curved surfaces.
The second surface 1022 and the third surface 1023 of first light-emitting unit are the curved surface, then the light emitting area of first light-emitting unit, first surface 1021 is the arc as shown in fig. 3, first light-emitting unit wholly is the arc structure, when first light-emitting unit and the light guide plate that has the same arc cooperate, the light emitting area of first light-emitting unit and the arc part adaptation of arc light guide plate, the light emitting area of first light-emitting unit can be covered completely to the arc light guide plate to the problem of special-shaped backlight unit light leak has been solved. It should be noted that, in this embodiment, the bending direction and the bending degree of the curved surfaces of the second surface 1022 and the third surface 1023 of the first light-emitting unit, that is, the light-emitting surface of the first light-emitting unit is in an arc shape and an arc size are not limited, the second surface 1022 and the third surface 1023 may be parallel curved surfaces or non-parallel curved surfaces, which can be set according to design requirements, and meanwhile, the position of the first light-emitting unit on the flexible circuit board is not limited, and the position of the first light-emitting unit can be set according to the curved surface requirements of the light source. Moreover, the arc-shaped light guide plate provided by the embodiment may be a light guide plate partially having a curved shape, or a light guide plate entirely having a curved shape.
The light source of the side-light type backlight module comprises a plurality of light emitting units, wherein the plurality of light emitting units comprise first light emitting units which are integrally in an arc-shaped structure, the first light emitting units are matched with a light guide plate with the same radian to form the backlight module, the arc-shaped light guide plate can completely cover the light emitting surfaces of the first light emitting units, and the matching degree of the light emitting units and the light guide plate is good, so that the problem of light leakage of the arc-shaped backlight module is solved.
Further, in some alternative embodiments, the light emitting unit in fig. 1 is an LED. The light-emitting unit using the LED as the light source has the advantages of low working voltage, high reliability, long service life and the like.
Further, in some alternative embodiments, referring to fig. 3, in the first light emitting unit, the second surface 1022 and the third surface 1023 are parallel curved surfaces, and distances between corresponding positions of the second surface 1022 and the third surface 1023 are equal and curvatures are equal. In this embodiment, in the first light emitting unit, the second surface 1022 and the third surface 1023 are parallel curved surfaces, which is suitable for the case that the light emitting surface of the curved light guide plate and the plane opposite to the light emitting surface are parallel curved surfaces, and can prevent light leakage of the curved light guide plate. The curved light guide plate may be a light guide plate partially having a curved shape or a light guide plate entirely having a curved shape.
Further, in some alternative embodiments, referring to fig. 3, in the first light emitting unit, the second surface 1022 and the third surface 1023 are both curved to two sides oppositely disposed along the first direction a, as shown in fig. 3, the left and right sides of the second surface 1022 and the third surface 1023 are both curved downward, wherein the curved direction of the second surface 1022 and the third surface 1023 may also be the opposite direction in fig. 3, and the development of the second surface 1022 and the third surface 1023 is rectangular. On one hand, the light source of the edge-lit backlight module provided in this embodiment can flexibly set the bending directions of the second surface 1022 and the third surface 1023 of the first light-emitting unit according to the requirement of the bending direction of the light guide plate, thereby increasing the degree of freedom of the design of the light guide plate; on the other hand, the second surface 1022 and the third surface 1023 are rectangular in the expanded view and are bent to two sides oppositely arranged along the first direction a, so that the widths of the light emitting units in the light source in the direction perpendicular to the first direction a are the same, and the assembly of the whole edge type backlight module is facilitated.
Further, in some alternative embodiments, fig. 4 is a simplified schematic diagram of a cross section of the first light-emitting unit according to an embodiment of the present invention, the cross section of the first light-emitting unit in fig. 3 is taken along a plane parallel to the first surface 1021, and as shown in fig. 4, an intersection line between the plane parallel to the first surface 1021 and the second surface is X1, an intersection line between the plane parallel to the first surface 1021 and the third surface is X2, a curvature radius at each point on the intersection line X1 is equal, and a curvature radius at each point on the intersection line X2 is equal. The second surface and the third surface of the first light-emitting unit in the light source of the edge-lit backlight module provided by the embodiment are parts of the side surface of the cylinder, light generated in the first light-emitting unit is more uniformly distributed on the light-emitting surface, and meanwhile, the light-emitting unit is well matched with the light guide plate with the same radian, and the light guide plate can completely cover the light-emitting surface of the first light-emitting unit, so that the problem of light leakage of the arc-shaped backlight module can be solved.
Further, in some optional embodiments, fig. 5 is a schematic view of an optional embodiment of a light source of an edge-type backlight module according to an embodiment of the present invention, and fig. 5 is a schematic view of the light source viewed from a viewing angle opposite to a light emitting surface of the light source (i.e., against a direction in which light is emitted from the light source), as shown in fig. 5, a plurality of light emitting units are disposed on the flexible circuit board 101, where all of the light emitting units are the first light emitting unit 102A.
The light source that this embodiment provided, the first luminescence unit that luminescence unit all adopted to have the arc structure can match with the arc light guide plate that has the same radian, constitutes arc backlight unit, and arc backlight unit does not have the problem of light leak. The light source provided by the embodiment can be suitable for a wrist watch type display screen which is integrally in a bent shape.
Further, in some optional embodiments, fig. 6 is a schematic view of another optional embodiment of a light source of an edge-lit backlight module according to an embodiment of the present invention.
As shown in fig. 6, in the first direction a, the flexible circuit board 101 includes a first sub-portion 1011 and a second sub-portion 1012. The light emitting units in the light source comprise a plurality of first light emitting units 102A and a plurality of second light emitting units 102B, the first light emitting units 102A being located in the first section 1011 and the second light emitting units 102B being located in the second section 1012. Here, the first light emitting unit 102A refers to fig. 3, and the second light emitting unit 102B refers to the second surface 1022 and the third surface 1023 shown in fig. 2 as light emitting units of planes parallel to each other. The number and position of the first and second sub-portions 1011, 1012 in the light source of the present invention are not limited, and the light source may include a plurality of first and second sub-portions 1011, 1012, and the first and second sub-portions 1011, 1012 may be arranged adjacently or alternately.
The light source of the edge-type backlight module provided by this embodiment includes a first sub-portion provided with the first light-emitting unit and a second sub-portion provided with the second light-emitting unit, wherein, since the first light-emitting unit has an arc-shaped structure, a first sub-portion of the light source including the first light-emitting unit has a curved surface characteristic, and the first sub-portion is used in cooperation with a light guide plate having the same radian, and the light guide plate can completely cover a light-emitting surface of the first light-emitting unit. The second surface and the third surface of the second light-emitting unit are parallel planes, so that the second sub-portion of the light source including the second light-emitting unit has a planar characteristic.
Further, in some optional embodiments, fig. 7 is a schematic view illustrating another optional embodiment of a light source of an edge-lit backlight module according to an embodiment of the present invention.
As shown in fig. 7, the flexible circuit board 101 includes two first sub-portions 1011 and one second sub-portion 1012, and in the first direction a, the second sub-portion 1012 is located between the two first sub-portions 1011, the first light emitting unit 102A is located at the first sub-portions 1011, and the second light emitting unit 102B is located at the second sub-portion 1012.
The light source of the side-light type backlight module provided by the embodiment has a curved surface characteristic, the light guide plates with the same radian are arranged at the corresponding positions of the first part of the light source to form the arc-shaped backlight module, and the arc-shaped backlight module has no light leakage problem and can be suitable for the backlight module and the display panel with curved surface characteristic requirements.
Further, in some alternative embodiments, as shown in fig. 7, the second surfaces of the first light emitting units 102A located at the two first sub-sections 1011 are all bent to the same degree.
The degree of curvature of the second surface of each first light-emitting unit 102A is the same, the first light-emitting units 102A are manufactured by the same process, the process is simple, and meanwhile, because the degree of curvature of the first light-emitting units 102A is the same, the curved surface characteristic of the first sub-portion is good, and the arc-shaped curved surface light guide plate matched with the first sub-portion is easier to manufacture.
Referring to fig. 8 and 9, fig. 8 is a schematic top view of the edge-lit backlight module provided by the present invention. Fig. 9 is a schematic cross-sectional view of the light guide plate at the position of the cut line Q1 in fig. 8.
As shown in fig. 8, the backlight module includes a light source 100 and a light guide plate 200, the light source 100 is disposed on a first side 201 of the light guide plate 200, the light source 100 is the light source of the edge-type backlight module according to any of the above embodiments, and a second side 202 of the light guide plate 200 is disposed adjacent to the first side 201.
As shown in fig. 9, the light guide plate 200 includes a bending portion W bending toward the second side 202 of the light guide plate, the first light emitting unit shown in fig. 3 among the light sources is disposed corresponding to the bending portion W, and the degree of bending of the second surface 1022 and the third surface 1023 of the first light emitting unit shown in fig. 3 is the same as the degree of bending of the bending portion W, so that the light guide plate can completely cover the light emitting surface of the first light emitting unit after the bending portion W of the light guide plate is disposed corresponding to the first light emitting unit, and the bending portion has no light leakage problem.
The edge-light type backlight module provided by the embodiment has the advantages that the light guide plate and the light source have the bending characteristics, in addition, after the light guide plate and the light source are correspondingly arranged, the light emitting surface of the light source can be completely covered by the light guide plate, the backlight module has no light leakage problem, and the edge-light type backlight module can be suitable for a display panel with the curved surface characteristic.
Further, in some alternative embodiments, with reference to fig. 8, an edge-type backlight module provided in the embodiments of the present invention is shown, and in this embodiment, fig. 10 is a schematic view of another alternative embodiment of a cross section of the light guide plate at a position along a tangent line Q1 in fig. 8.
In this embodiment, the light source of the edge-type backlight module refers to the light source shown in fig. 7.
As shown in fig. 10, the light guide plate 200 includes a flat plate portion P and two bent portions W, the flat plate portion P is located between the two bent portions W, a first light emitting unit in the light source is disposed corresponding to the bent portions W, and the bent portions W can completely cover a light emitting surface of the first light emitting unit without light leakage. The second light-emitting unit is arranged corresponding to the flat plate part P, and the flat plate part P can completely cover the light-emitting surface of the second light-emitting unit and has no light leakage problem.
The edge-lit backlight module provided by the embodiment has the advantages that the light source and the light guide plate are provided with the two bent parts, and the backlight module has no light leakage problem after the two bent parts of the light source and the light guide plate are correspondingly arranged, and can be suitable for a display panel with curved surface characteristics.
An embodiment of the present invention further provides a display panel, including the edge-lit backlight module described in the above embodiment, and fig. 11 is a schematic view of the display panel provided in the embodiment of the present invention. The display panel that this embodiment provided, including the whole first luminescence unit that is the arc structure in the light source, first luminescence unit and the cooperation of the light guide plate that has the same radian, the light emitting surface luminescence unit that the arc light guide plate can cover first luminescence unit completely is good with the light guide plate matching degree to the problem of arc backlight unit light leak has been solved, the display panel curved surface that this embodiment provided shows effectually.
By the above embodiments, the edge-lit backlight module, the light source and the display panel thereof of the invention have the following beneficial effects:
according to the light source of the side-light type backlight module, the plurality of light emitting units comprise the first light emitting unit which is integrally in an arc-shaped structure, the first light emitting unit is matched with the arc-shaped light guide plate with the same radian and the bent part to form the backlight module, the arc-shaped light guide plate can completely cover the light emitting surface of the first light emitting unit, the matching degree of the light emitting unit and the light guide plate is good, so that the problem of light leakage of the arc-shaped backlight module with the bent part is solved, meanwhile, the light source of the side-light type backlight module provided by the embodiment can adapt to different radian requirements of the curved surface light guide plate, the curved surface light guide plate can be more easily adapted to a special-shaped.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (8)
1. A light source of side-light type backlight module is characterized in that,
the light source includes: the light emitting device comprises a flexible circuit board and a plurality of light emitting units, wherein the light emitting units are arranged on the flexible circuit board along a first direction;
in the first direction, the flexible circuit board comprises a first subsection and a second subsection;
the flexible circuit board comprises two first subsections and one second subsection, and the second subsection is located between the two first subsections in the first direction; the light emitting unit comprises a first surface, a second surface fixed with the flexible circuit board and a third surface arranged opposite to the second surface, wherein the first surface is adjacent to the second surface and the third surface respectively, and the first surface is a light emitting surface of the light emitting unit;
the plurality of light emitting units comprise a plurality of first light emitting units and a plurality of second light emitting units, the first light emitting units are positioned in the first sub-part, and the second light emitting units are positioned in the second sub-part;
in the first light emitting unit, the first surface is a plane, and the second surface and the third surface are curved surfaces;
the degree of curvature of the second surface of each of the first light emitting units in the two first subsections is the same;
in the second light emitting unit, the second surface and the third surface are planes parallel to each other.
2. The light source of the edge-lit backlight module of claim 1,
in the first light emitting unit, the second surface and the third surface are parallel curved surfaces.
3. The light source of the edge-type backlight module according to claim 1, wherein in the first light-emitting unit, the second surface and the third surface are both curved to two sides oppositely arranged along the first direction, and the development figures of the second surface and the third surface are rectangular.
4. The light source of claim 3, wherein the radius of curvature at each point on the intersection of the plane parallel to the first surface and the second and third surfaces is equal.
5. The light source of the edge-lit backlight module of claim 1, wherein the light emitting units are LEDs.
6. A side-light type backlight module comprises a light source and a light guide plate, wherein the light source is arranged at a first side of the light guide plate,
the light source is the light source of the edge-lit backlight module set forth in any one of claims 1-5;
the light guide plate includes a curved portion curved to a second side of the light guide plate, the first light emitting unit in the light source is disposed corresponding to the curved portion, and a degree of curvature of the second surface and a degree of curvature of the third surface of the first light emitting unit are the same as a degree of curvature of the curved portion, wherein the second side of the light guide plate is disposed adjacent to the first side of the light guide plate.
7. The edge-lit backlight module of claim 6, wherein the light guide plate comprises a flat plate portion and two curved portions, the flat plate portion is located between the two curved portions, and the second light-emitting units in the light source are disposed corresponding to the flat plate portion.
8. A display panel comprising the edge-lit backlight module of claim 6 or 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710526352.4A CN107247363B (en) | 2017-06-30 | 2017-06-30 | Side light type backlight module, light source and display panel thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710526352.4A CN107247363B (en) | 2017-06-30 | 2017-06-30 | Side light type backlight module, light source and display panel thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107247363A CN107247363A (en) | 2017-10-13 |
| CN107247363B true CN107247363B (en) | 2021-04-02 |
Family
ID=60013745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710526352.4A Active CN107247363B (en) | 2017-06-30 | 2017-06-30 | Side light type backlight module, light source and display panel thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107247363B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104282830A (en) * | 2013-07-12 | 2015-01-14 | 展晶科技(深圳)有限公司 | Light-emitting diode module |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101493209A (en) * | 2009-02-26 | 2009-07-29 | 友达光电股份有限公司 | Light guiding device for thin type display and the thin type display thereof |
| CN104315418A (en) * | 2014-10-30 | 2015-01-28 | 京东方科技集团股份有限公司 | Light source assembly, backlight module and curved surface display device |
| JP2017181817A (en) * | 2016-03-30 | 2017-10-05 | パナソニック液晶ディスプレイ株式会社 | Display device |
| CN105807487A (en) * | 2016-04-06 | 2016-07-27 | 深圳市华星光电技术有限公司 | Backlight module and display device |
| CN205958894U (en) * | 2016-08-30 | 2017-02-15 | 京东方科技集团股份有限公司 | Backlight source and display device |
| CN106773297A (en) * | 2016-12-23 | 2017-05-31 | 深圳市华星光电技术有限公司 | Backlight module and display device |
-
2017
- 2017-06-30 CN CN201710526352.4A patent/CN107247363B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104282830A (en) * | 2013-07-12 | 2015-01-14 | 展晶科技(深圳)有限公司 | Light-emitting diode module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107247363A (en) | 2017-10-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9348081B2 (en) | Illumination device and display device | |
| KR102302586B1 (en) | Light-Diffusing Lens and Backlight Unit and Display Device having the same | |
| US20160313487A1 (en) | Backlight module, display panel and display device | |
| US9753215B2 (en) | Backlight, liquid crystal module and display device | |
| WO2016155050A1 (en) | Backlight unit and display device | |
| US9810829B2 (en) | Backlight module, having a deformable layer, display module and display device | |
| JP2019185921A (en) | Illuminating device and display device comprising the same | |
| US20060120112A1 (en) | Backlight module and light guide plate with integrated frame | |
| US8388208B2 (en) | Method and structure for uniforming light emitted from backlight module | |
| TWM392976U (en) | Edge-lit backlight module | |
| JP2015176752A (en) | Lighting device and display device | |
| US8998475B2 (en) | Lighting system and display device | |
| US10234080B2 (en) | Surface light source device, edge-lit type backlight module and display device | |
| US20090079906A1 (en) | Prism sheet and liquid crystal display device using the same | |
| US20130135843A1 (en) | Light guide plate structure and backlight module using the same | |
| US20110304795A1 (en) | Backlight assembly and display apparatus including the same | |
| CN107247363B (en) | Side light type backlight module, light source and display panel thereof | |
| CN110161603B (en) | Oriented diffusion microstructured optical film | |
| US20130021820A1 (en) | Backlight device and display device | |
| US20120081636A1 (en) | Backlight module and display apparatus | |
| US11036081B2 (en) | Display device | |
| CN101377590B (en) | Backlight module unit and applications thereof | |
| KR102444400B1 (en) | Double-sided Display Device and Backlight Unit therefor | |
| EP2565690A1 (en) | Illuminating device for a thin display device | |
| CN107238971B (en) | Combined light guide plate, backlight assembly and display panel |
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 |