CN112255841A - Backlight module, liquid crystal display and electronic equipment - Google Patents
Backlight module, liquid crystal display and electronic equipment Download PDFInfo
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- CN112255841A CN112255841A CN202011224835.7A CN202011224835A CN112255841A CN 112255841 A CN112255841 A CN 112255841A CN 202011224835 A CN202011224835 A CN 202011224835A CN 112255841 A CN112255841 A CN 112255841A
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- guide plate
- backlight module
- optical film
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 41
- 239000012788 optical film Substances 0.000 claims abstract description 38
- 239000003292 glue Substances 0.000 claims abstract description 14
- 239000004033 plastic Substances 0.000 description 9
- 229920003023 plastic Polymers 0.000 description 9
- 239000002390 adhesive tape Substances 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 5
- 230000003116 impacting effect Effects 0.000 description 5
- 238000001746 injection moulding Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- 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
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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)
- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
Abstract
The application provides a backlight module, a liquid crystal display and electronic equipment, and relates to the field of display equipment. Backlight module, including: the light guide plate and the optical film material are stacked, a first side edge of the light guide plate is provided with a light source, and a second side edge, opposite to the first side edge, of the light guide plate is connected with the back plate on the side departing from the optical film material; the rubber frame is connected with the back plate and surrounds the periphery of the backlight assembly formed by the light guide plate, the optical film material and the light source; the side walls of the glue frame corresponding to the third side and the fourth side of the light guide plate are provided with protrusions, and gaps of preset sizes are formed between the protrusions and the third side and between the protrusions and the fourth side. Backlight unit's gluey frame adds the bellying, and this arch reduces the distance between light guide plate third side and fourth side and the gluey frame lateral wall, can prevent that the side of light guide plate from taking place to collapse the cracked condition of limit because of colliding with, has solved the striking and has caused the light guide plate to collapse the problem of the local position light leak that the limit brought.
Description
Technical Field
The present disclosure relates to display devices, and particularly to a backlight module, a liquid crystal display and an electronic device.
Background
A Liquid Crystal Display (LCD) is a Display with a mature technology, and mainly includes a Liquid Crystal panel and a backlight module, where the backlight module can be mainly divided into a Light Emitting Diode (LED) backlight and a Cold Cathode Fluorescent Lamp (CCFL) backlight according to the type of Light source, and the LED backlight occupies an absolute leading position along with the market demands of thinning and low power consumption of the Display device.
As shown in fig. 1, the backlight module mainly includes a stacked light guide plate 1 ', a diffusion sheet 2 ', a brightness enhancement sheet 3 ', and an LED light source (not shown) disposed at a side edge of the light guide plate, the LED light source is generally connected to the light guide plate 1 ' through a fixing tape and disposed at one side edge of the light guide plate 1 ', and the other side of the light guide plate 1 ' opposite to the side connected to the LED light source is adhered and fixed to a back plate 4 ' of the liquid crystal display. However, when the lcd is assembled, the back plate needs to be matched with the rubber frame 5 ', and a certain gap is left between the backlight assembly and the rubber frame 5 ', so as to ensure that each part can be normally deformed in a micro amount without interference under the condition of thermal change, thus, one side of the light guide plate 1 ' is fixedly adhered to the back plate 4 ', and the opposite side is provided with the LED light source, so that the other two sides of the light guide plate easily collide with the rubber frame 5 ' when the lcd is dropped, impacted or dropped during the test process, and then the edge breakage occurs, the transmission direction of local light at the edge position of the picture is changed due to the existence of the gap of the damaged structure, the light leakage problem caused by the lightening of the local position can be seen from the front viewing angle direction under the side viewing angle or the serious state, the quality of the product is seriously affected, and the market risk of the product is very high.
Therefore, further solution to the above technical problems is needed.
Disclosure of Invention
The main objective of the present invention is to provide a backlight module, a liquid crystal display and an electronic device, which can solve the technical problem that the side edge of the light guide plate is easy to break during the process of dropping, impacting or dropping test of the liquid crystal display.
In order to solve the above technical problem, an embodiment of the present application provides the following technical solutions:
in one aspect, the present application provides a backlight module, comprising: the backlight module comprises a light guide plate and an optical film material which are arranged in a stacked mode, wherein a first side edge of the light guide plate is provided with a light source, and a second side edge, opposite to the first side edge, of the light guide plate is connected with a back plate on the side, away from the optical film material, of the light guide plate;
the rubber frame is connected with the back plate and surrounds the periphery of the backlight assembly formed by the light guide plate, the optical film material and the light source;
the side walls of the glue frame corresponding to the third side and the fourth side of the light guide plate are provided with protrusions, and gaps with preset sizes are formed between the protrusions and the third side and the fourth side.
The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.
Optionally, in the backlight module, a first side of the rubber frame is connected to the back plate, and a second side of the rubber frame opposite to the first side is used for connecting to a liquid crystal panel;
the protruding part extends from the first side of the rubber frame to the second side, and the extending distance of the protruding part is smaller than or equal to the distance from the surface, attached to the optical film material, of the light guide plate to the back plate.
Optionally, in the backlight module, the rubber frame includes a first frame and a second frame opposite to the third side and the fourth side of the light guide plate, respectively, and a third frame and a fourth frame connected to corresponding ends of the first frame and the second frame, respectively, to form a frame body;
wherein, the third frame is located the outside of the first side of light guide plate, the fourth frame is located the outside of the second side of light guide plate sets up on the first frame lateral wall the bellying has at least the part to be located the position that first frame and third frame and fourth frame are connected sets up on the second frame lateral wall the bellying has at least the part to be located the position that second frame and third frame and fourth frame are connected.
Optionally, in the backlight module, the protruding portion disposed on the side wall of the first bezel is a continuous strip shape, and extends from a connection position of the first bezel and the third bezel to a connection position of the first bezel and the fourth bezel;
the protruding parts arranged on the side walls of the second frame are continuous long strips, and extend from the connecting positions of the second frame and the third frame to the connecting positions of the second frame and the fourth frame.
Optionally, in the backlight module, the protruding portion located on the side wall of the first bezel and the first bezel are an integral structure, and a first channel is disposed inside the first bezel along the length direction of the first bezel;
the protruding portion and the second frame located on the side wall of the second frame are of an integral structure, and a second channel is arranged inside the second frame along the length direction of the second frame.
Optionally, in the backlight module, the protruding portion disposed on the first bezel sidewall includes a plurality of first protruding single units, and the plurality of first protruding single units are disposed on the first bezel sidewall at regular intervals;
the protruding portion arranged on the second frame side wall comprises a plurality of second protruding single bodies, and the second protruding single bodies are arranged on the second frame side wall at even intervals.
Optionally, in the backlight module, a cross section of the protruding portion along a direction from the first side to the second side of the rubber frame is rectangular or right trapezoid.
Optionally, in the backlight module, the protruding portion is made of a flexible material.
In another aspect, the present application provides a liquid crystal display, including: a backlight module;
the backlight module includes: the backlight module comprises a light guide plate and an optical film material which are arranged in a stacked mode, wherein a first side edge of the light guide plate is provided with a light source, and a second side edge, opposite to the first side edge, of the light guide plate is connected with a back plate on the side, away from the optical film material, of the light guide plate;
the rubber frame is connected with the back plate and surrounds the periphery of the backlight assembly formed by the light guide plate, the optical film material and the light source;
the side walls of the glue frame corresponding to the third side and the fourth side of the light guide plate are provided with protrusions, and gaps with preset sizes are formed between the protrusions and the third side and the fourth side.
In another aspect, the present application provides an electronic device comprising:
a liquid crystal display;
the liquid crystal display includes:
a backlight module;
the backlight module includes: the backlight module comprises a light guide plate and an optical film material which are arranged in a stacked mode, wherein a first side edge of the light guide plate is provided with a light source, and a second side edge, opposite to the first side edge, of the light guide plate is connected with a back plate on the side, away from the optical film material, of the light guide plate;
the rubber frame is connected with the back plate and surrounds the periphery of the backlight assembly formed by the light guide plate, the optical film material and the light source;
the side walls of the glue frame corresponding to the third side and the fourth side of the light guide plate are provided with protrusions, and gaps with preset sizes are formed between the protrusions and the third side and the fourth side.
By the technical scheme, the backlight module, the liquid crystal display and the electronic equipment at least have the following advantages:
in the backlight module provided by the embodiment of the invention, the rubber frame is additionally provided with the bulge parts corresponding to the side walls of the third side and the fourth side of the light guide plate, the bulge parts reduce the distance between the third side of the light guide plate and the side wall of the rubber frame and the distance between the fourth side of the light guide plate and the side wall of the rubber frame, and a gap with a preset size is reserved, so that when the liquid crystal display falls, is impacted or falls off, the movement distance between the third side and the fourth side of the light guide plate relative to the side wall of the rubber frame is reduced, the force of the third side and the fourth side of the light guide plate impacting the side wall of the rubber frame is reduced, the side of the light guide plate is effectively prevented from being cracked due to impact, and the problem of light leakage at a local position caused by edge cracking of the light guide plate due.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
The above and other objects, features and advantages of exemplary embodiments of the present application will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present application are illustrated by way of example and not by way of limitation in the figures of the accompanying drawings and in which like reference numerals refer to similar or corresponding parts and in which:
fig. 1 schematically shows a cross-sectional view of a backlight module in the prior art;
fig. 2 schematically shows a cross-sectional view of a backlight module.
The reference numbers in fig. 1-2 are:
the light guide plate comprises a light guide plate 1 ', a diffusion sheet 2 ', a brightness enhancement sheet 3 ', a back plate 4 ' and a rubber frame 5 '; the light guide plate comprises a light guide plate 1, an optical film material 10, a diffusion sheet 2, a brightness enhancement sheet 3, a back plate 4, a rubber frame 5, a protruding part 51, an adhesive tape 6, a shading adhesive tape 7, a gap A with a preset size and a distance B for extending the protruding part.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which this application belongs.
Example one
As shown in fig. 2, a backlight module according to an embodiment of the present invention includes: the backlight module comprises a light guide plate 1 and an optical film material 10 which are stacked, wherein a first side edge of the light guide plate 1 is provided with a light source (not shown in the figure), and a second side edge, opposite to the first side edge, of the light guide plate 1 is connected with a back plate 4 at the side far away from the optical film material 10; the rubber frame 5 is connected with the back plate 4 and surrounds the periphery of the backlight assembly formed by the light guide plate 1, the optical film material 10 and the light source; the side walls of the glue frame 5 corresponding to the third side and the fourth side of the light guide plate 1 are provided with protrusions 51, and a gap a with a preset size is formed between the protrusions 51 and the third side and the fourth side.
Specifically, the main structure of the backlight module and the components included in the main structure are known to those skilled in the art. For example: the backlight module comprises a light guide plate 1, a diffusion sheet 2 and a brightness enhancement sheet 3 (the diffusion sheet 2 and the brightness enhancement sheet 3 form the optical film material 10) which are sequentially stacked, a light source (which can be an LED lamp bar) is fixed on a first side edge of the light guide plate 1 through an adhesive tape 6, the light emitting direction of the light source faces towards the first side edge of the light guide plate 1, a back plate 4 is arranged on one side of the light guide plate 1, which is far away from the optical film material 10, a second side edge of the light guide plate 1, which is opposite to the first side edge, is also fixed on the back plate 4 through the adhesive tape 6, a rubber frame 5 surrounds the periphery of the backlight module formed by the light guide plate 1, the optical film material 10 and the light source as; a shading adhesive tape 7 can be arranged between one side of the rubber frame 5, which is far away from the back plate 4, and the edge of the optical film material 10, so that light is prevented from being emitted from the position between the rubber frame 5 and the side edge of the light guide plate 1, and the display effect is prevented from being influenced.
Wherein, because the characteristics of above-mentioned structure, the third side and the fourth side that make light guide plate 1 can take place to swing when falling and glue frame 5 and collide with, and still because light guide plate 1 is through injection moulding process shaping, and set up the injecting glue mouth in one side of light guide plate 1 during moulding plastics, lead to the stress of this side great, and light guide plate 1 corresponds to one side of injecting glue mouth also is the third side or the fourth side of foretell light guide plate 1 usually, so because of the great reason of stress, the problem that bursts apart when having further increased the collision more.
The protruding portions 51 disposed on the plastic frame 5 corresponding to the third side and the fourth side of the light guide plate 1 may be any protrusions with any cross-sectional shape, as long as the distance between the existing plastic frame 5 and the third side and the fourth side of the light guide plate 1 is reduced, for example, the distance between the original plastic frame 5 and the third side and the fourth side of the light guide plate 1 is 0.25-0.35 mm, and after the protruding portions 51 are disposed, the gap between the protruding portions 51 and the third side and the gap a between the protruding portions 51 and the fourth side with the predetermined size may be reduced to 0.15-0.20 mm, that is, the moving distance from the light guide plate 1 to the third side and the fourth side is also reduced while the gap is reduced. In addition, the protruding portion 51 may be integrally formed with the main body of the rubber frame 5, for example, by injection molding, in which case the material of the protruding portion 51 may be the same as that of the rubber frame 5, or may be an integral structure formed by secondary injection molding, in which case the material may be different from that of the main body of the rubber frame 5; or the protruding portion 51 may be separated from the main body of the rubber frame 5, and disposed on the sidewall of the rubber frame 5 by gluing or fastening, at this time, the materials of the protruding portion 51 and the main body of the rubber frame 5 may be the same or different, and the specific material may be selected according to the use requirement.
In the backlight module provided by the embodiment of the invention, the rubber frame 5 is additionally provided with the convex part 51 corresponding to the side wall of the third side and the fourth side of the light guide plate 1, the convex part reduces the distance between the third side of the light guide plate 1 and the side wall of the rubber frame 5, reduces the distance between the fourth side of the light guide plate 1 and the side wall of the rubber frame 5 and keeps a gap with a preset size, so that when the liquid crystal display falls, is impacted or falls in a test, the moving distance of the third side and the fourth side of the light guide plate 1 relative to the side wall of the rubber frame 5 is reduced, the force of the third side and the fourth side of the light guide plate 1 impacting the side wall of the rubber frame 5 is reduced, the side of the light guide plate 1 is effectively prevented from being cracked due to collision, and the problem of light leakage at a local position caused by the cracked side of the light guide plate.
In a specific implementation, a first side of the rubber frame 5 is connected with the back plate 4, and a second side opposite to the first side of the rubber frame 5 is used for connecting a liquid crystal panel; the protruding portion 51 extends from the first side to the second side of the rubber frame 5, and a distance B that the protruding portion extends is less than or equal to a distance from a surface, to which the light guide plate 1 and the optical film 10 are attached, to the back plate 4.
Specifically, since the area of the optical film 10 is usually larger than the area of the light guide plate 1, that is, the side edge of the optical film 10 extends a certain distance beyond the side edge of the light guide plate 1, the height of the protrusion 51 from the first side to the second side of the rubber frame 5 needs to be less than or equal to the distance from the surface of the light guide plate 1 attached to the optical film 10 to the back plate 4 to avoid the interference between the protrusion 51 and the optical film 10.
In a specific implementation, the glue frame 5 includes a first frame and a second frame opposite to the third side and the fourth side of the light guide plate 1, respectively, and a third frame and a fourth frame connected to corresponding ends of the first frame and the second frame, respectively, to form a frame body;
wherein, the third frame is located the outside of the first side of light guide plate 1, the fourth frame is located the outside of the second side of light guide plate 1 sets up on the first frame lateral wall bellying 51 is located at least partly the position that first frame and third frame and fourth frame are connected sets up on the second frame lateral wall bellying 51 is located at least partly the position that second frame and third frame and fourth frame are connected.
Specifically, by ensuring that the protruding portions 51 are disposed at least at the positions where the first frame is connected to the third frame and the fourth frame, and ensuring that the protruding portions 51 are disposed at least at the positions where the second frame is connected to the third frame and the fourth frame, the protruding portions 51 are disposed at the two ends of the third side of the light guide plate 1, and the protruding portions 51 are disposed at the two ends of the fourth side. Because in the process that the liquid crystal display falls, the two ends of the third side and the two ends of the fourth side are the positions with the largest swing amplitude, and the two positions correspond to the convex parts 51, the situation that the edge of the light guide plate 1 is broken due to the falling of the liquid crystal display can be effectively ensured.
Further, the protruding portion 51 may be disposed on the first and second bezel sidewalls in the following manner:
the protruding part 51 arranged on the side wall of the first frame is a continuous strip shape and extends from the connecting position of the first frame and the third frame to the connecting position of the first frame and the fourth frame; the protruding portion 51 provided on the side wall of the second frame is a continuous strip shape, and extends from the connection position of the second frame and the third frame to the connection position of the second frame and the fourth frame.
Specifically, since the plastic frame 5 and the protruding portion 51 can be preferably formed by injection molding, and the protruding portion 51 and the plastic frame 5 have a large wall thickness after being combined, a first channel and a second channel can be added, that is, the protruding portion 51 and the first frame on the side wall of the first frame are integrated into a whole, and the first channel is arranged inside the first frame along the length direction of the first frame; the protruding portion 51 located on the side wall of the second frame and the second frame are of an integral structure, and a second channel is arranged inside the second frame along the length direction of the second frame. And then can avoid the problem of the defect of moulding plastics because of the wall thickness too big leads to take place through the setting up of first passageway and second passageway, also can effectual reduction simultaneously glue frame 5's weight, and then can reduce LCD's weight.
Secondly, the protruding part 51 arranged on the first frame side wall comprises a plurality of first protruding single bodies, and the plurality of first protruding single bodies are uniformly arranged on the first frame side wall at intervals; the protruding portion 51 disposed on the second frame side wall includes a plurality of second protruding single bodies, and the plurality of second protruding single bodies are disposed on the second frame side wall at regular intervals.
Specifically, the effect of preventing the light guide plate 1 from colliding and collapsing edges can be achieved by arranging the convex single bodies at intervals.
In a specific implementation, a cross section of the protruding portion 51 along a direction from the first side to the second side of the rubber frame 5 is rectangular or a right trapezoid.
Specifically, right trapezoid's right-angle side is located gluey frame 5 first side, and the cross-section has one side orientation of oblique angle to glue the second side of frame 5, sets up a chamfer on bellying 51 like this, and bellying 51 this moment is along the height of gluey frame 5 first side to second side direction, can set up with backplate 4 to the distance that the surface of optical film material 10 deviates from light guide plate 1 one side equals, and the position of this right trapezoid's oblique angle can avoid interfering with optical film material 10.
Wherein, set up bellying 51 to the cross-section and be the contact surface area of collision with bellying 51 when can effectual increase light guide plate 1 swing, can further place light guide plate 1 side and be collided and burst.
In one implementation, the raised portion 51 may be made of a flexible material.
Specifically, when the protrusion 51 is made of a flexible material, the protrusion can play a role of buffering when the light guide plate 1 collides with the rubber frame 5, so as to further protect the light guide plate 1.
Example two
The second embodiment of the invention provides a liquid crystal display, which comprises a backlight module;
as shown in fig. 2, the backlight module includes: the backlight module comprises a light guide plate 1 and an optical film material 10 which are stacked, wherein a first side edge of the light guide plate 1 is provided with a light source (not shown in the figure), and a second side edge, opposite to the first side edge, of the light guide plate 1 is connected with a back plate 4 at the side far away from the optical film material 10; the rubber frame 5 is connected with the back plate 4 and surrounds the periphery of the backlight assembly formed by the light guide plate 1, the optical film material 10 and the light source; the side walls of the glue frame 5 corresponding to the third side and the fourth side of the light guide plate 1 are provided with protrusions 51, and a gap with a preset size is formed between the protrusions 51 and the third side and the fourth side.
Specifically, the backlight module described in the second embodiment can directly use the backlight module provided in the first embodiment, and the specific implementation structure can refer to the related contents described in the first embodiment, and is not described herein again.
In the liquid crystal display provided by the embodiment of the invention, the rubber frame 5 of the backlight module is additionally provided with the convex part 51 corresponding to the side wall of the third side and the fourth side of the light guide plate 1, the convex part reduces the distance between the third side of the light guide plate 1 and the side wall of the rubber frame 5, reduces the distance between the fourth side of the light guide plate 1 and the side wall of the rubber frame 5 and keeps a gap with a preset size, so that when the liquid crystal display falls off, is impacted or falls off, the moving distance between the third side and the fourth side of the light guide plate 1 relative to the side wall of the rubber frame 5 is reduced, the force of the third side and the fourth side of the light guide plate 1 impacting the side wall of the rubber frame 5 is reduced, the side edge of the light guide plate 1 is effectively prevented from edge breakage caused by collision, and the problem of light leakage at a local position caused by the side of the light guide plate.
EXAMPLE III
An electronic device provided by a third embodiment of the present invention includes a liquid crystal display, and the liquid crystal display includes: a backlight module;
as shown in fig. 2, the backlight module includes: the backlight module comprises a light guide plate 1 and an optical film material 10 which are arranged in a stacked mode, wherein a first side edge of the light guide plate 1 is provided with a light source, and a second side edge, opposite to the first side edge, of the light guide plate 1 is connected with a back plate 4 on the side, away from the optical film material 10, of the light guide plate 1; the rubber frame 5 is connected with the back plate 4 and surrounds the periphery of the backlight assembly formed by the light guide plate 1, the optical film material 10 and the light source; the side walls of the glue frame 5 corresponding to the third side and the fourth side of the light guide plate 1 are provided with protrusions 51, and a gap with a preset size is formed between the protrusions 51 and the third side and the fourth side.
Specifically, the backlight module described in the third embodiment can directly use the backlight module provided in the first embodiment, and the specific implementation structure can refer to the related contents described in the first embodiment, and is not described herein again.
In the electronic device provided by the embodiment of the invention, the backlight module of the liquid crystal display has a special structural design, the rubber frame 5 of the backlight module is additionally provided with the convex parts 51 corresponding to the side walls of the third side and the fourth side of the light guide plate 1, the protrusion reduces the distance between the third side of the light guide plate 1 and the side wall of the plastic frame 5, and reduces the distance between the fourth side of the light guide plate 1 and the side wall of the plastic frame 5, and a gap with a preset size is reserved, so that when the liquid crystal display falls, is impacted or is subjected to a drop test, the distance of the third side and the fourth side of the light guide plate 1 moving relative to the side wall of the rubber frame 5 is reduced, so that the force of the third side and the fourth side of the light guide plate 1 impacting the side wall of the rubber frame 5 is reduced, and then can effectually prevent that the side of light guide plate 1 from breaking the condition of limit rupture because of colliding with, solve the local position light leak that the striking caused the light guide plate 1 to break the limit and bring.
It will be appreciated that the relevant features of the devices described above may be referred to one another. In addition, "first", "second", and the like in the above embodiments are for distinguishing the embodiments, and do not represent merits of the embodiments.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A backlight module, comprising:
the backlight module comprises a light guide plate and an optical film material which are arranged in a stacked mode, wherein a first side edge of the light guide plate is provided with a light source, and a second side edge, opposite to the first side edge, of the light guide plate is connected with a back plate on the side, away from the optical film material, of the light guide plate;
the rubber frame is connected with the back plate and surrounds the periphery of the backlight assembly formed by the light guide plate, the optical film material and the light source;
the side walls of the glue frame corresponding to the third side and the fourth side of the light guide plate are provided with protrusions, and gaps with preset sizes are formed between the protrusions and the third side and the fourth side.
2. The backlight module according to claim 1,
the first side of the rubber frame is connected with the back plate, and the second side, opposite to the first side of the rubber frame, is used for connecting a liquid crystal panel;
the protruding part extends from the first side of the rubber frame to the second side, and the extending distance of the protruding part is smaller than or equal to the distance from the surface, attached to the optical film material, of the light guide plate to the back plate.
3. The backlight module according to claim 2,
the rubber frame comprises a first frame and a second frame which are respectively opposite to the third side and the fourth side of the light guide plate, and a third frame and a fourth frame which are respectively connected with the corresponding ends of the first frame and the second frame to form a frame body;
wherein, the third frame is located the outside of the first side of light guide plate, the fourth frame is located the outside of the second side of light guide plate sets up on the first frame lateral wall the bellying has at least the part to be located the position that first frame and third frame and fourth frame are connected sets up on the second frame lateral wall the bellying has at least the part to be located the position that second frame and third frame and fourth frame are connected.
4. The backlight module according to claim 3,
the protruding part arranged on the side wall of the first frame is a continuous strip shape and extends from the connecting position of the first frame and the third frame to the connecting position of the first frame and the fourth frame;
the protruding parts arranged on the side walls of the second frame are continuous long strips, and extend from the connecting positions of the second frame and the third frame to the connecting positions of the second frame and the fourth frame.
5. The backlight module according to claim 4,
the protruding part positioned on the side wall of the first frame and the first frame are of an integral structure, and a first channel is arranged inside the first frame along the length direction of the first frame;
the protruding portion and the second frame located on the side wall of the second frame are of an integral structure, and a second channel is arranged inside the second frame along the length direction of the second frame.
6. The backlight module according to claim 3,
the bulge part arranged on the first frame side wall comprises a plurality of first bulge single bodies, and the first bulge single bodies are uniformly arranged on the first frame side wall at intervals;
the protruding portion arranged on the second frame side wall comprises a plurality of second protruding single bodies, and the second protruding single bodies are arranged on the second frame side wall at even intervals.
7. The backlight module according to claim 2,
the cross section of the bulge part along the direction from the first side to the second side of the rubber frame is rectangular or right trapezoid.
8. The backlight module according to claim 1,
the convex part is made of flexible materials.
9. A liquid crystal display, comprising:
a backlight module according to any one of claims 1 to 8.
10. An electronic device, comprising:
the liquid crystal display of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011224835.7A CN112255841A (en) | 2020-11-05 | 2020-11-05 | Backlight module, liquid crystal display and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011224835.7A CN112255841A (en) | 2020-11-05 | 2020-11-05 | Backlight module, liquid crystal display and electronic equipment |
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| CN112255841A true CN112255841A (en) | 2021-01-22 |
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| CN202011224835.7A Pending CN112255841A (en) | 2020-11-05 | 2020-11-05 | Backlight module, liquid crystal display and electronic equipment |
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| CN113138498A (en) * | 2021-04-22 | 2021-07-20 | 武汉华星光电技术有限公司 | Display module |
| CN113359351A (en) * | 2021-06-17 | 2021-09-07 | 武汉华星光电技术有限公司 | Backlight module and display device |
| CN113759603A (en) * | 2021-09-08 | 2021-12-07 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN114236907A (en) * | 2021-12-15 | 2022-03-25 | 武汉华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN114267246A (en) * | 2021-12-20 | 2022-04-01 | 重庆惠科金渝光电科技有限公司 | Backlight module and display device |
| WO2024021079A1 (en) * | 2022-07-29 | 2024-02-01 | 京东方科技集团股份有限公司 | Backlight module, display module, and display apparatus |
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