CN114253031B - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
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- CN114253031B CN114253031B CN202111579057.8A CN202111579057A CN114253031B CN 114253031 B CN114253031 B CN 114253031B CN 202111579057 A CN202111579057 A CN 202111579057A CN 114253031 B CN114253031 B CN 114253031B
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Classifications
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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
- G02F1/133602—Direct backlight
- G02F1/133608—Direct backlight including particular frames or supporting means
-
- 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/133314—Back frames
-
- 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/133317—Intermediate frames, e.g. between backlight housing and front frame
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
本申请涉及一种背光模组及显示装置。该背光模组包括：相连接的背光板和中框，所述中框在所述背光板上的正投影位于所述背光板内，且所述中框的外边缘与所述背光板的外边缘对齐；该显示装置包括显示面板如上述的背光模组，所述背光模组用于向所述显示面板提供光源。本申请通过上述方式减小了整个背光模组和显示装置的宽度，有利于背光模组和显示装置向着窄边框甚至无边框发展。
The present application relates to a backlight module and a display device. The backlight module comprises: a connected backlight panel and a middle frame, wherein the orthographic projection of the middle frame on the backlight panel is located inside the backlight panel, and the outer edge of the middle frame is aligned with the outer edge of the backlight panel; the display device comprises a display panel such as the above-mentioned backlight module, and the backlight module is used to provide a light source to the display panel. The present application reduces the width of the entire backlight module and the display device in the above manner, which is conducive to the development of the backlight module and the display device towards a narrow frame or even a frameless frame.
Description
Technical Field
The present application relates to the field of display technologies, and in particular, to a backlight module and a display device.
Background
With the development of the current display market, the liquid crystal display device generally includes a liquid crystal display panel and a backlight module, wherein the backlight module is located at a backlight side of the liquid crystal display panel and is used for providing a light source for the liquid crystal display panel so as to enable the liquid crystal display panel to display images.
The backlight module comprises a backlight plate and a middle frame, wherein the side wall of the backlight plate is provided with an outwardly extending connecting structure, and the middle frame is connected by the connecting structure.
Disclosure of Invention
The application aims to provide a backlight module and a display device, which can reduce the width of the backlight module so as to realize narrow frame design.
In a first aspect, an embodiment of the present application provides a backlight module, including: and the orthographic projection of the middle frame on the backlight plate is positioned in the backlight plate, and the outer edge of the middle frame is aligned with the outer edge of the backlight plate.
In one embodiment of the application, the backlight plate comprises a plug-in part and/or a containing part, and correspondingly, the middle frame comprises a containing part and/or a plug-in part, and the plug-in part is matched with the containing part; the backlight plate covers the plug-in part positioned on the backlight plate, and/or the orthographic projection of the accommodating part on the backlight plate, the orthographic projection of the middle frame on the backlight plate covers the accommodating part positioned on the middle frame, and/or the orthographic projection of the plug-in part on the backlight plate.
In one embodiment of the present application, the outer wall of the middle frame faces the inner wall of the middle frame, and the width of the plugging portion and the width of the accommodating portion tend to increase.
In one embodiment of the application, the backlight plate comprises a bottom plate and a first side wall arranged on one side of the bottom plate, and the middle frame comprises a second side wall; the inserting part comprises a trapezoid protruding part, the trapezoid protruding part is arranged on the first side wall along a first direction, the accommodating part comprises a trapezoid recessed part, the trapezoid recessed part is arranged on the second side wall along the first direction, and the trapezoid recessed part and the trapezoid protruding part are mutually inserted to limit the relative movement of the middle frame and the backlight plate on a plane parallel to the bottom plate.
In one embodiment of the application, an optical film set is further included, the optical film set including a lug; the trapezoid protruding parts are at least two, the cross section shapes of the adjacent trapezoid protruding parts are right trapezoid, the right-angle side of one right trapezoid is located on the first face of one trapezoid protruding part, the right-angle side of the other right trapezoid is located on the second face of the other trapezoid protruding part, and the first face and the second face are oppositely arranged and parallel to each other; the first face and the second face are both attached to the side face of the lug.
In an embodiment of the application, the middle frame faces the backlight plate, and the width of the plugging portion and the width of the accommodating portion tend to increase.
In one embodiment of the application, the backlight plate comprises a bottom plate and a first side wall arranged on one side of the bottom plate, and the middle frame comprises a second side wall; the inserting portion comprises a T-shaped protruding portion, the T-shaped protruding portion is arranged on the second side wall along the second direction, the accommodating portion comprises a T-shaped concave portion, the T-shaped concave portion is arranged on the first side wall along the second direction, and the T-shaped concave portion and the T-shaped protruding portion are mutually inserted to limit relative movement of the middle frame and the backlight plate in the second direction.
In one embodiment of the present application, the T-shaped protrusion and the T-shaped recess each include at least a pair of third and fourth faces disposed opposite each other; the outer wall of the middle frame faces the direction of the inner wall of the middle frame, and the distance between the third face and the fourth face tends to be reduced.
In one embodiment of the application, the backlight plate comprises a bottom plate and at least two first side walls arranged on one side of the bottom plate, the middle frame comprises at least two second side walls, a first corner is formed adjacent to the first side walls, and a second corner is formed adjacent to the second side walls; the backlight module further comprises two L-shaped limiting parts and two L-shaped limiting grooves, the two L-shaped limiting parts are respectively arranged on the two second side walls of the second corner along the second direction, the two L-shaped limiting grooves are arranged on the two first side walls of the first corner along the second direction, and each L-shaped limiting part is spliced with the corresponding L-shaped limiting groove.
In a second aspect, an embodiment of the present application further provides a display apparatus, including: a display panel and a backlight module according to any one of the first aspect, the backlight module being configured to provide a light source to the display panel.
According to the backlight module and the display device provided by the embodiment of the application, the backlight module comprises the backlight plate and the middle frame, the backlight plate is connected with the middle frame, the orthographic projection of the middle frame on the backlight plate is positioned in the backlight plate, and the outer edge of the middle frame is aligned with the outer edge of the backlight plate, so that the width of the whole backlight module is reduced, and the backlight module and the display device are beneficial to developing towards a narrow frame or even without a frame.
Drawings
Features, advantages, and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings. In the drawings, like parts are designated with like reference numerals. The drawings are not drawn to scale, but are merely for illustrating relative positional relationships, and the layer thicknesses of certain portions are exaggerated in order to facilitate understanding, and the layer thicknesses in the drawings do not represent the actual layer thickness relationships.
Fig. 1 shows an exploded view of a backlight module according to a first embodiment of the present application;
Fig. 2 is a schematic structural diagram of a backlight module according to a first embodiment of the present application;
FIG. 3 is a cross-sectional view based on FIG. 1 or FIG. 2;
Fig. 4 is a schematic view showing a structure after the trapezoidal concave portion and the trapezoidal convex portion are connected in the first embodiment of the present application;
FIG. 5 is an exploded view based on FIG. 4;
FIG. 6 is a schematic diagram showing the structure of an optical film set according to the first embodiment of the present application;
Fig. 7 is a schematic view showing a structure after the connection of the T-shaped concave portion and the T-shaped convex portion in the first embodiment of the present application;
FIG. 8 is a schematic view of a structure based on the T-shaped recess of FIG. 7;
Fig. 9 is a schematic structural view of a T-shaped protrusion based on fig. 7;
fig. 10 is a schematic structural view showing a first embodiment of the present application after two L-shaped limiting portions and two L-shaped limiting grooves are connected;
FIG. 11 is a schematic view of a structure based on the two L-shaped limiting portions of FIG. 10;
FIG. 12 is a schematic view of a structure based on the two L-shaped limiting grooves of FIG. 10;
Fig. 13 is a schematic structural diagram of a display device according to a second embodiment of the present application.
Reference numerals illustrate:
100. A backlight module; 200. an array substrate; 300. a color film substrate; 400. a liquid crystal layer;
10. A backlight plate; 11. a first sidewall; 111. a trapezoidal convex portion; 1111. right trapezoid; 1112. a first face; 1113. a second face; 112. t-shaped concave part; 12. a first corner; 121. an L-shaped limit groove; 20. a middle frame; 21. a second sidewall; 211. a trapezoidal recess; 212. t-shaped convex parts; 2121. a third face; 2122. a fourth face; 22. a second corner; 221. an L-shaped limit part; 30. a reflection sheet; 40. an optical component; 41. an optical film set; 411. a lug; 42. a light guide plate.
Detailed Description
Features and exemplary embodiments of various aspects of the application are described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the application. It will be apparent, however, to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the application by showing examples of the application. In the drawings and the following description, at least some well-known structures and techniques have not been shown in detail in order not to unnecessarily obscure the present application; also, the size of the region structures may be exaggerated for clarity. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
The display device generally includes a display panel and a backlight module, wherein the display panel is a non-emissive light receiving element, the backlight module is disposed on a backlight surface side of the display panel and is used for providing a light source for the display panel so that the display panel displays an image, and in particular, the display panel may be a liquid crystal display panel, and the display device is a liquid crystal display device.
The backlight module comprises a backlight plate, a middle frame, a light-emitting component and an optical component, wherein the light-emitting component is arranged on the backlight plate, the optical component is positioned on one side, deviating from the backlight plate, of the light-emitting component, the middle frame is connected with the backlight plate, and the middle frame is used for being connected with the optical component in a specific connection mode that: the side wall of the backlight plate is provided with the connecting structure which extends outwards, and the connecting structure is used for connecting the middle frame, as the connecting structure has a certain width, the width of the middle frame is increased, the display device is not beneficial to developing to the narrow frame or even the borderless frame, the width of the whole backlight module is reduced, and the backlight module and the display device are beneficial to developing to the narrow frame or even the borderless frame.
In view of this, various embodiments of the present application provide a backlight module and a display device including the same, where after a middle frame is connected to a backlight plate, an orthographic projection of the middle frame on the backlight plate is located in the backlight plate, and an outer edge of the middle frame is aligned with an outer edge of the backlight plate, so as to reduce a width of the backlight module, and facilitate a display device to develop toward a narrow frame or even without a frame.
The following describes a specific structure of a backlight module and a display device including the backlight module according to embodiments of the present application with reference to the accompanying drawings.
First embodiment
Fig. 1 shows an exploded view of a backlight module 100 according to a first embodiment of the present application, fig. 2 shows a schematic structural view of the backlight module 100 according to the first embodiment of the present application, and fig. 3 is a cross-sectional view based on fig. 1 or fig. 2.
Referring to fig. 1 to 3, the backlight module 100 includes a backlight plate 10, a middle frame 20, a reflective sheet 30 and an optical assembly 40.
In some embodiments, the middle frame 20 is connected with the backlight 10, and the optical component 40 is connected to a side of the middle frame 20 facing the backlight 10.
In other embodiments, the middle frame 20 is connected to the backlight 10, and the lugs 411 of the optical assembly 40 are disposed on the side of the middle frame 20 facing away from the backlight 10.
The reflective sheet 30 may be a reflective sheet, and in the side-entry type backlight module 100, a whole layer of reflective sheet is adhered under the light guide plate, and in the direct type backlight module, the reflective sheet is adhered on the lamp panel, and the LEDs on the lamp panel are exposed in the upward direction of the diffusion plate through the small holes on the reflective sheet.
On the basis of any one of the above schemes, the orthographic projection of the middle frame 20 on the backlight plate 10 is located in the backlight plate 10, and the outer edge of the middle frame 20 is aligned with the outer edge of the backlight plate 10, so as to reduce the width of the backlight module 100, which is beneficial for the display device to develop towards a narrow frame or even no frame.
Further, the backlight plate 10 is provided with a plugging portion, and correspondingly, the middle frame 20 is provided with a containing portion; or the backlight plate 10 is provided with a containing part, and correspondingly, the middle frame 20 is provided with a plug-in part; or the backlight 10 is provided with both the plugging portion and the receiving portion, and correspondingly, the middle frame 20 is provided with both the receiving portion and the plugging portion. In the three modes, the inserting part and the accommodating part are matched.
The backlight plate 10 covers the plugging portion located thereon, and/or the orthographic projection of the receiving portion on the backlight plate 10, and the orthographic projection of the middle frame 20 on the backlight plate 10 covers the receiving portion located on the middle frame 20, and/or the orthographic projection of the plugging portion on the backlight plate 10, so as to ensure that the receiving portion and the plugging portion are not located on the outer edges of the backlight plate 10 and the middle frame 20, and further reduce the size of the backlight module 100.
Specifically, the backlight 10 includes a bottom plate and at least two first sidewalls 11 disposed on the bottom plate, the middle frame 20 includes at least two second sidewalls 21, a first corner 12 is formed adjacent to the first sidewalls 11, and a second corner 22 is formed adjacent to the second sidewalls 21.
Fig. 4 is a schematic view showing a structure after the trapezoidal concave portion 211 and the trapezoidal convex portion 111 are connected in the first embodiment of the present application; fig. 5 is an exploded view based on fig. 4.
Referring to fig. 4-5, the outer wall of the middle frame 20 faces the inner wall of the middle frame 20, and the width of the inserting portion and the width of the accommodating portion tend to increase, so that the relative movement of the middle frame 20 and the backlight plate 10 on a plane parallel to the bottom plate can be effectively limited, and the purpose of fixing the middle frame 20 is achieved. Specifically, the plugging portion includes a trapezoidal protruding portion 111, the trapezoidal protruding portion 111 is disposed on the first side wall 11 along a first direction, the accommodating portion includes a trapezoidal recess 211, the trapezoidal recess 211 is disposed on the second side wall 21 along the first direction, the trapezoidal recess 211 and the trapezoidal protruding portion 111 are plugged with each other, so as to limit the relative movement of the middle frame 20 and the backlight 10 on a plane parallel to the bottom plate, and the trapezoidal protruding portion 111 and the trapezoidal recess 211 are matched in an embedded manner, so that the backlight 10 and the middle frame 20 are tightly connected, the overall width of the backlight module 100 is further reduced, and a narrow frame design is realized.
Optionally, the first direction is the direction indicated by an arrow in fig. 1, i.e. the width direction of the bottom plate; the direction of the outer wall of the middle frame 20 towards the inner wall of the middle frame 20 is the direction indicated by the arrow in fig. 5; the trapezoidal concave portion 211 and the trapezoidal convex portion 111 may also be T-shaped or wedge-shaped.
Fig. 6 shows a schematic structural diagram of an optical film set 41 according to a first embodiment of the present application.
Referring to fig. 6, the optical assembly 40 includes an optical film group 41, where the optical film group 41 includes a lug 411, and as an example, fig. 6 only illustrates one lug 411, in practice, two or four or even more lugs 411 are typically disposed on each optical film group 411, so that at least one lug 411 is disposed on two opposite sides of the optical film group 411; the number of the trapezoidal protruding parts 111 is at least two, the cross-sectional shapes of the adjacent trapezoidal protruding parts 111 are right trapezoid 1111, the right-angle side of one right trapezoid 1111 is located on the first surface 1112 of one of the trapezoidal protruding parts 111, the right-angle side of the other right trapezoid 1111 is located on the second surface 1113 of the other trapezoidal protruding part 111, and the first surface 1112 and the second surface 1113 are oppositely arranged and parallel to each other; the first surface 1112 and the second surface 1113 are attached to the side of the lug 411. Compared with an isosceles trapezoid, the right-angle side of the right-angle trapezoid 1111 can greatly reduce abrasion between the right-angle side and the side surface of the lug 411, and when the film is pulled out, the trapezoid protruding portion 111 can be effectively prevented from propping against the inner optical film set 41, so that the structural integrity of the optical film set 41 is ensured, and the service life is prolonged.
In addition, the trapezoid protrusion 111 may be a protrusion extending into the backlight module 100 and bending upwards to form a cross section with an L shape, and correspondingly, the trapezoid recess 211 may be a recess extending into the backlight module 100 and bending upwards to form a cross section with an L shape, so that the L-shaped protrusion is better embedded into the L-shaped recess, and is prevented from falling off.
Fig. 7 is a schematic diagram showing the structure of the first embodiment of the present application after the T-shaped concave portion 112 and the T-shaped convex portion 212 are connected; fig. 8 is a schematic structural view of the T-shaped recess 112 based on fig. 7; fig. 9 is a schematic structural view of the T-shaped convex portion 212 shown in fig. 7.
Referring to fig. 7-9, the middle frame 20 faces the backlight board 10, and the width of the inserting portion and the width of the accommodating portion tend to increase. The backlight 10 includes a bottom plate and a first sidewall 11 disposed at one side of the bottom plate, and the middle frame 20 includes a second sidewall 21; the plugging portion includes a T-shaped protrusion 212, the T-shaped protrusion 212 is disposed on the second side wall 21 along the second direction, the accommodating portion includes a T-shaped recess 112, the T-shaped recess 112 is disposed on the first side wall 11 along the second direction, and the T-shaped recess 112 and the T-shaped protrusion 212 are plugged with each other, so as to limit the relative movement of the middle frame 20 and the backlight 10 in the second direction, and the T-shaped protrusion 212 and the T-shaped recess 112 are in embedded fit, so that the backlight 10 and the middle frame 20 are tightly connected, and the width of the backlight module 100 is further reduced.
Optionally, the second direction is the direction indicated by an arrow in fig. 1, that is, the thickness direction of the bottom plate; the direction of the middle frame 20 towards the backlight board 10 is the direction indicated by the arrow in fig. 7; the tee shaped protrusions 212 and tee shaped recesses 112 may also be trapezoidal or wedge shaped.
With continued reference to fig. 3 and fig. 7-9, the T-shaped protrusion 212 and the T-shaped recess 112 each include at least a pair of third 2121 and fourth 2122 oppositely disposed faces; the outer wall of the middle frame 20 faces the inner wall of the middle frame 20, and the distance between the third face 2121 and the fourth face 2122 tends to decrease. Therefore, after the middle frame 20 is matched with the backlight plate 10, the second side wall 21 is prevented from moving inwards to damage the optical film group 41, so that the structural integrity of the optical film group 41 is ensured, and the service life is prolonged.
Fig. 10 is a schematic view showing a structure of the first embodiment of the present application after two L-shaped limiting parts 221 and two L-shaped limiting grooves 121 are connected; fig. 11 is a schematic structural view based on the two L-shaped limiting parts 221 of fig. 10; fig. 12 is a schematic structural view of two L-shaped limiting grooves 121 based on fig. 10.
As shown in fig. 10-12, the backlight module 100 further includes two L-shaped limiting portions 221 and two L-shaped limiting grooves 121, the two L-shaped limiting portions 221 are respectively disposed on the two second side walls 21 of the second corner 22 along the second direction, the two L-shaped limiting grooves 121 are disposed on the two first side walls 11 of the first corner 12 along the second direction, and each L-shaped limiting portion 221 is inserted into the corresponding L-shaped limiting groove 121, so as to prevent the problem that the first corner 12 and the second corner 22 warp after being connected due to the deformable material of the middle frame 20.
Specifically, the two L-shaped limiting portions 221 are perpendicular to each other, the two L-shaped limiting portions 221 are respectively located on two perpendicular planes, the L-shaped limiting portions 221 have long arms and short arms perpendicularly connected to one ends of the long arms, the long arms of the two L-shaped limiting portions 221 are perpendicularly connected, the short arms of the two L-shaped limiting portions 221 are perpendicularly connected, one ends of the long arms, far away from the short arms, of the long arms are perpendicularly connected to the second side wall 21, namely, the long arms extend along the second direction, the short arms extend along the middle of the first side wall 11, and a T-shaped bending portion bent along a central line is formed; the two L-shaped limiting grooves 121 are perpendicular to each other, the two L-shaped limiting grooves 121 are respectively located on two perpendicular planes, each L-shaped limiting groove 121 is provided with a long groove and a short groove vertically connected to one end of the long groove, the long grooves of the two L-shaped limiting grooves 121 are vertically connected, the short grooves of the two L-shaped limiting grooves 121 are vertically connected, one end of each long groove, far away from the short wall, is vertically connected to the first side wall 11, namely, the long arm extends along the second direction, the short arm extends along the middle of the first side wall 11 to form a T-shaped bending groove bent along the central line, and the T-shaped bending groove is matched with the two L-shaped limiting parts 221.
The backlight module 100 may be divided into a direct type backlight module 100 and a side-in type backlight module 100. The direct type backlight module 100 mainly comprises a backlight plate 10, a light emitting component 30 arranged on the bottom plate of the backlight plate 10, and an optical component 40 arranged on the middle frame 20, wherein the optical component 40 is positioned at one side of the light emitting component 30 far away from the backlight plate 10, and a light source in the vertical direction emitted by the light emitting component 30 directly emits onto a display panel. The side-in backlight module 100 comprises a backlight plate 10, a light emitting component 30 arranged on the side wall of the backlight plate 10, a light guide plate 42 arranged on the bottom plate of the backlight plate 10, and an optical component 40 arranged on one side of the light guide plate 42 far away from the backlight plate 10, wherein the light emitting component 30 comprises a light emitting part, the light emitting part of the light emitting component 30 is arranged towards the side wall of the light guide plate 42, and light emitted by the light emitting part is uniformly diffused by the light guide plate 42.
As an example, the Light Emitting assembly 30 includes a circuit board and a plurality of Light Emitting elements disposed on the circuit board, wherein the Light Emitting elements may be Light-Emitting diodes (LEDs) of a conventional size, or may be any one of Micro-LEDs or sub-millimeter LEDs (Mini-LEDs). Micro-LEDs refer to LED chips with a die size of 100 μm or less, mini-LEDs refer to LED chips with a die size of 100-300 μm. The LED, mini-LED or Micro-LED can be used as a self-luminous element for display, and has the advantages of low power consumption, high brightness, high resolution, high color saturation, high reaction speed, long service life, high efficiency and the like.
The optical assembly 40 includes a diffusion plate and an optical film set 41 disposed on a side of the diffusion plate away from the backlight 10, and the diffusion plate and the optical film set 41 are fixedly connected by a transparent optical adhesive, so as to prevent relative displacement between the diffusion plate and the optical film set 41 from affecting the light emitting effect of the backlight module 100.
The diffusion plate is used to diffuse the light emitted from the light emitting element to equalize the brightness of the entire backlight module 1001. The optical film group 41 may include, for example, a prism sheet for controlling a propagation direction of light diffused by the diffusion plate so that the propagation direction of light is perpendicular to the display panel, a protective sheet, and the like. The protective sheet is used to protect the prisms of the prism sheet from scratches and the like. The protective sheet may also be used to widen the viewing angle previously narrowed due to the prism sheet.
In this embodiment, the backlight 10 may be made of a metal material, such as any one of aluminum plate, aluminum alloy plate, or galvanized steel, and is manufactured by a stamping process. The metal material has better ductility, and can protect the backlight module 100 from being broken easily under the impact of external force. The backlight plate 10 may also be made of plastic material, such as polyimide, polycarbonate, polyethersulfone, polyethylene terephthalate, polyethylene, etc., so as to reduce the weight of the backlight module 100 and the cost of the backlight module 100. The shape of the backlight 10 may be the same as that of a liquid crystal display panel using the backlight module 100, for example, when the shape of the display panel is circular, the shape of the backlight 10 of the backlight module 100 used therein is also circular. The shape of the backlight 10 may vary from embodiment to embodiment.
The material of the middle frame 20 is a deformable material having a cushioning property, specifically, expanded polypropylene (EPP), expanded Polyethylene (EPE), expanded Polystyrene (EPS), or the like, and the material of the middle frame 20 is not limited thereto, and the middle frame 20 made of a material having a cushioning property can better protect the optical film group 41 during assembly and use.
Second embodiment
Fig. 13 is a schematic structural diagram of a display device according to a second embodiment of the present application.
Referring to fig. 13, in a first embodiment, a display device is provided according to the present embodiment, including: the backlight module 100 of the first embodiment is configured to provide a light source to the display panel and the display panel. Specifically, the display panel includes an array substrate 200, a color film substrate 300, and a liquid crystal layer 400 between the array substrate 200 and the color film substrate 300.
Specifically, the periphery of the display panel is directly adhered to the backlight module 100 by using double sided tape.
The display panel may be a single display panel or may be a double display panel stacked in the thickness direction. When the display panel is a dual display panel, the display panel at the bottom layer is used for controlling light, and the display panel at the top layer is used for displaying, so that the contrast ratio of the display device can be improved.
It can be appreciated that the technical solution of the backlight module 100 provided by the embodiments of the present application can be widely used for providing light sources for various display panels, such as TN (TWISTED NEMATIC ) display panels, IPS (In-PLANE SWITCHING ) display panels, VA (VERTICAL ALIGNMENT, vertical alignment) display panels, MVA (Multi-Domain VERTICAL ALIGNMENT ) display panels.
It should be readily understood that the terms "on … …", "above … …" and "above … …" in this disclosure should be interpreted in the broadest sense so that "on … …" means not only "directly on something" but also includes "on something" with intermediate features or layers therebetween, and "above … …" or "above … …" includes not only the meaning "on something" or "above" but also the meaning "above something" or "above" without intermediate features or layers therebetween (i.e., directly on something).
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.
Claims (6)
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| CN115547185A (en) * | 2022-04-25 | 2022-12-30 | 东莞市迈豪五金科技有限公司 | A display module bottom case and display module |
| CN115542607A (en) * | 2022-09-30 | 2022-12-30 | 惠科股份有限公司 | Backlight module and display device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013163819A1 (en) * | 2012-05-02 | 2013-11-07 | 深圳市华星光电技术有限公司 | Rubber frame structure and backlight module |
| WO2016045147A1 (en) * | 2014-09-28 | 2016-03-31 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| WO2017054649A1 (en) * | 2015-09-30 | 2017-04-06 | 合一智能科技（深圳）有限公司 | Liquid crystal display apparatus module and manufacturing method therefor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102744317A (en) * | 2012-07-06 | 2012-10-24 | 邓洋阳 | Production method of liquid crystal display frame |
| CN108303815B (en) * | 2018-01-26 | 2019-03-12 | 惠州市华星光电技术有限公司 | Display module and display device |
| CN209417470U (en) * | 2019-02-28 | 2019-09-20 | 昆山龙腾光电有限公司 | A kind of backlight module and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013163819A1 (en) * | 2012-05-02 | 2013-11-07 | 深圳市华星光电技术有限公司 | Rubber frame structure and backlight module |
| WO2016045147A1 (en) * | 2014-09-28 | 2016-03-31 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| WO2017054649A1 (en) * | 2015-09-30 | 2017-04-06 | 合一智能科技（深圳）有限公司 | Liquid crystal display apparatus module and manufacturing method therefor |
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