CN105715984B - Backlight module and liquid crystal display device - Google Patents
Backlight module and liquid crystal display device Download PDFInfo
- Publication number
- CN105715984B CN105715984B CN201410711163.0A CN201410711163A CN105715984B CN 105715984 B CN105715984 B CN 105715984B CN 201410711163 A CN201410711163 A CN 201410711163A CN 105715984 B CN105715984 B CN 105715984B
- Authority
- CN
- China
- Prior art keywords
- guide plate
- light guide
- light source
- elastic arm
- supporting surface
- 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
Landscapes
- Planar Illumination Modules (AREA)
Abstract
The present invention provides a kind of liquid crystal display device, and the liquid crystal display device includes backlight module and the display panel on backlight module.The backlight module includes light guide plate, light source, blooming piece and glue frame.Light source is located at light guide plate side, and on light guide plate, glue frame is enclosed to set by multiple side walls to be formed blooming piece, and light guide plate, light source and blooming piece are fixed wherein.A wherein side wall of the glue frame close to light source side extends inwardly to form a wall extension, wall extension covering light source and carrying display panel.Wall extension extends inwardly to form an elastic arm.Elastic arm includes a top surface and a supporting surface relative with top surface.When being pressurized elastic deformation occurs for elastic arm, so that supporting surface is held on light guide plate or blooming piece.
Description
Technical field
A kind of liquid crystal display device the present invention relates to backlight module and using the backlight module.
Background technology
A kind of backlight module, including backboard, the reflector plate in backboard, the light guide plate on reflector plate, located at leading
Optical diaphragm group on tabula rasa, in backlight and backlight that relative light guide plate is set, the glue frame on backboard and set
Above backlight and light guide plate light inputting end and by stoppering, attaching or being fastened on the elastic barricade in glue frame, the elasticity
Barricade includes bottom surface and the side with plane perpendicular, and the upper surface and backlight of the bottom surface and the side and light guide plate closely connect
Touch, so as to which light is reflected back in light guide plate, to solve the problems, such as backlight module incident side light leak.So, the backlight module needs extra
The elastic barricade is set, increases hardware cost and assembling procedure.
The content of the invention
In view of problem above, it is necessary to which a kind of backlight module for preventing light leak is provided.
It there is a need to and a kind of liquid crystal display device for preventing light leak is provided.
A kind of backlight module, the backlight module include light guide plate, light source, blooming piece and glue frame.The light source is located at institute
Light guide plate side is stated, for the blooming piece on the light guide plate, the glue frame includes end to end multiple side walls, described
Light guide plate, the light source and the blooming piece are fixed in the glue frame.The glue frame close to the light source side wherein one
The side wall extends inwardly to form a wall extension, and the wall extension covers the light source.The wall extension extends inwardly to form a bullet
Arm.The elastic arm includes a top surface and a supporting surface relative with the top surface.When being pressurized elastic deformation occurs for the elastic arm, with
The supporting surface is set to be held on the light guide plate or the blooming piece, to stop that the light that the light source is sent is led from described
The lateral margin of tabula rasa or the blooming piece is spilt.
A kind of liquid crystal display device, the liquid crystal display device include backlight module and the display on the backlight module
Panel.The backlight module includes light guide plate, light source, blooming piece and glue frame.The light source is located at the light guide plate side, institute
Blooming piece is stated on the light guide plate, the glue frame includes end to end multiple side walls, the light guide plate, the light source
And the blooming piece is fixed in the glue frame.Wherein one side wall of the glue frame close to the light source side extends internally
A wall extension is formed, the wall extension covers the light source and the carrying display panel.The wall extension extends inwardly to form one
Elastic arm.The elastic arm includes a top surface and a supporting surface relative with the top surface.When being pressurized elastic deformation occurs for the elastic arm,
So that the supporting surface is held on the light guide plate or the blooming piece, to stop light that the light source sends from institute
The lateral margin for stating light guide plate or the blooming piece is spilt.
Compared to prior art, backlight module and liquid crystal display device of the invention, using extending the bullet to be formed from glue frame
Elastic deformation occur for arm be held on light guide plate or blooming piece to prevent the effect of light leak to reach, and hardware is set without extra,
Advantageously reduce hardware cost and simplify assembling procedure.
Brief description of the drawings
Fig. 1 is the stereogram for the liquid crystal display device that first embodiment of the invention is provided；
Fig. 2 is Fig. 1 three-dimensional exploded view；
Fig. 3 is profiles of the Fig. 1 along III-III direction；
Fig. 4 is Fig. 3 along the partial enlarged drawing at IV；
Fig. 5 is the profile for the liquid crystal display device that second embodiment of the invention is provided；
Fig. 6 is the profile for the liquid crystal display device that third embodiment of the invention is provided；
Fig. 7 is the profile for the liquid crystal display device that four embodiment of the invention is provided.
Main element symbol description
Following embodiment will combine above-mentioned accompanying drawing and further illustrate the present invention.
Embodiment
It is the vertical of the liquid crystal display 10 that first embodiment of the invention is provided please refer to Fig. 1 and Fig. 2, Fig. 1
Body figure.Fig. 2 is Fig. 1 three-dimensional exploded view.The liquid crystal display 10 of first embodiment of the invention includes the aobvious of stacking setting
Show panel 170 and backlight module 100, the backlight module 100 includes backboard 110, reflector plate 140, light guide plate 120, blooming piece
130th, light source 150, light source strip 180 and glue frame 160.The reflector plate 140 is contained in the backboard 110, the light guide plate 120
It is arranged on the reflector plate 140, the blooming piece 130 is arranged on the light guide plate 120, and the light source 150 is fixed on
On the light source strip 180, the glue frame 160 is contained in the backboard 110, and the glue frame 160 fixes the blooming piece
130th, the light guide plate 120 and the light source strip 180, the display panel 170 are arranged on the blooming piece 130 and by institute
State glue frame 160 to accept, the upper surface of the glue frame 160 is fixed together with the display panel 170 by glue or adhesive tape.
In the present embodiment, the diffusion sheet 131 and two that the blooming piece 130 includes setting gradually from the bottom to top increases
Paillette 132.In other embodiments, the blooming piece 130 can only include two 131 and two increasings of diffusion sheet
Paillette 132 or the blooming piece 130 only include two diffusion sheets 131, can also be other and include at least one institute
State the collocation mode of diffusion sheet 131.The light guide plate 120 has an incidence surface 121, and the light source 150 is adjacent to the incidence surface
121 are set, the light that the light source 150 is sent, through the incidence surface 121 again successively by the diffusion sheet 131, two blast
After piece 132, change into the backlight that brightness is high and briliancy is homogeneous and inject the display panel 170.
It is profiles of the Fig. 1 along III-III direction please with reference to Fig. 3 and Fig. 4, Fig. 3.Fig. 4 is that Fig. 3 is put along the part at IV
Big figure.The glue frame 160 has four side walls 161, and four side walls 161, which join end to end to enclose, sets the square knot to form closing
Structure, the light guide plate 120, the blooming piece 130 and the light source 150 are installed in the glue frame 160.The glue frame
160 are molded by the way of injection molding, and its color is white.Wherein one side wall 161 of the neighbouring light source 150 is inside
Extension forms a wall extension 1611, and the display panel 170 carries the upper surface for being fixed on the wall extension 1611.In the present embodiment
In, the light source 150 is located between the side wall 161 and the light guide plate 120 of the glue frame 160, the wall extension 1611
Above the light source 150 and the covering light source 150.
The wall extension 1611 extends inwardly to form flexible elastic arm adjacent to the end of the display panel 170
1612.The elastic arm 1612 includes an a top surface 1612a and supporting surface 1612b relative with the top surface 1612a, the supporting surface
1612b height less than the lower surface of wall extension 1611 height, the supporting surface 1612b be held on the light guide plate 120 with
Micro interference is formed, so as to prevent the light that the light source 150 is sent from being spilt from the lateral margin of light guide plate 120, causes the light source
150 utilization rate is low and reduces the taste of the optics of the backlight module 100.Wherein, the supporting surface 1612b and the light guide plate
During the 120 micro interference of formation, amount of interference is more than manufacturing tolerance, the manufacturing tolerance of the light guide plate 120 of the blooming piece 130
And the assembling tolerance sum of the backlight module 100, but the supporting surface 1612b and the light guide plate 120 amount of interference should not
It is excessive and damage the light guide plate 120.Because the elastic arm 1612 is integrally formed from the glue frame 160, set without extra
Hardware, which to be formed with the light guide plate 120, to be in close contact, and advantageously reduces hardware cost.In addition, the elastic arm 1612 is formed at institute
State in glue frame 160, therefore can be assembled simultaneously with the glue frame 160, be advantageous to simplify assembling procedure.
The top surface 1612a of the elastic arm 1612 be an incline structure face, its upper table with the wall extension 1611
Face is stepped, and the top surface 1612a is less than the upper surface of the wall extension 1611, and is not connected with the display panel 170.
The top surface 1612a can prevent the elastic arm 1612 from contradicting in prepressing deformation to arrive less than the upper surface of the wall extension 1611
The display panel 170 and cause the damage of the display panel 170.The supporting surface 1612b is also the face of incline structure, institute
The lower surface for stating supporting surface 1612b and the wall extension 1611 is stepped, and the supporting surface 1612b is less than the wall extension
1611 lower surface.The supporting surface 1612b is less than the lower surface of the wall extension 1611, advantageously forms the supporting surface
The structure that 1612b is contacted all the time with the light guide plate 120, so as to prevent light leak.
When the display panel 170 is installed in the glue frame 160, the flexible elastic arm 1612 produces elastic shape
Become, the supporting surface 1612b is held in the upper surface of the light guide plate 120 and form micro interference.And in the display panel
170 when not being installed in the glue frame 160, and elastic deformation does not occur for the elastic arm 1612, in the raw, now described
Supporting surface 1612b front end just contacts with the light guide plate 120 or has certain interval, the institute under the nature
The surface for stating supporting surface 1216b and the light guide plate 120 is in relative tilt state.In the present embodiment, the supporting surface
1612b front end is the upper surface for being partially submerged into the light guide plate 120.Because the elastic arm 1612 is flexible, Ke Yian
When filling the display panel 170 to the glue frame 160, by finely tuning contact of the elastic arm 1612 with the light guide plate 120
Measure and reach the optimal effect for preventing light leak.Because the elastic arm 1612 is flexible, can install the display panel 170 to
When in the glue frame 160, light leak is most preferably prevented to reach by the exposure for finely tuning the elastic arm 1612 and the light guide plate 120
Effect.
In other embodiments, the supporting surface 1612b can also be globoidal structure, when the supporting surface 1612b is
During globoidal structure, the center of circle of the supporting surface 1612b in the side away from the light guide plate 120, the light guide plate 120 with it is described
Supporting surface 1612b forms tangent line and intersected.Elastic deformation is produced by then passing through the flexible elastic arm 1612 and is held in institute
Stating on light guide plate 120, it can be ensured that the supporting surface 1612b of the elastic arm 1612 is in close contact with the light guide plate 120, so as to
Reach preferable leakproof light effect.And because the supporting surface 1612b is inclined-plane or globoidal structure, therefore to the supporting surface
1612b flatness is it is not strictly necessary that be the effect of can be achieved to prevent light leak, so as to reduce product manufacture difficulty.
Referring to Fig. 5, Fig. 5 is the profile for the liquid crystal display 10 that second embodiment of the invention is provided,
The liquid crystal display 10 that second embodiment of the invention is provided includes display panel 170 and backlight module 100, the backlight mould
Block 100 includes backboard 110, reflector plate 140, light guide plate 120, blooming piece 130, light source 150, light source strip 180 and glue frame 160.
The reflector plate 140 is contained in the backboard 110, and the light guide plate 120 is arranged on the reflector plate 140, the optics
Diaphragm 130 is arranged on the light guide plate 120, and the light source 150 is fixed on the light source strip 180, and the glue frame 160 houses
In in the backboard 110, and the glue frame 160 fixes the blooming piece 130, the light guide plate 120 and the light source strip
180, the display panel 170 is arranged on the blooming piece 130, and is accepted by the glue frame 160, the glue frame 160
Upper surface is fixed together with the display panel 170 by glue or adhesive tape.
In the present embodiment, the diffusion sheet 131 and two that the blooming piece 130 includes setting gradually from the bottom to top increases
Paillette 132.In other embodiments, the blooming piece 130 can only include two 131 and two increasings of diffusion sheet
Paillette 132 or the blooming piece 130 only include two diffusion sheets 131, can also be other and include at least one institute
State the collocation mode of diffusion sheet 131.The light guide plate 120 has an incidence surface 121, and the light source 150 is adjacent to the incidence surface
121 are set, the light that the light source 150 is sent, through the incidence surface 121 again successively by the diffusion sheet 131, two blast
After piece 132, change into the backlight that brightness is high and briliancy is homogeneous and inject the display panel 170.
The glue frame 160 has four side walls 161, and four side walls 161, which join end to end to enclose, to be set to form the square of closing
Structure, the light guide plate 120, the blooming piece 130 and the light source 150 are installed in the glue frame 160.The glue frame
160 are molded by the way of injection molding, and its color is white.Wherein one side wall 161 of the neighbouring light source 150 is inside
Extension forms a wall extension 1611, and the display panel 170 carries the upper surface for being fixed on the wall extension 1611.In the present embodiment
In, the light source 150 is located between the side wall 161 and the light guide plate 120 of the glue frame 160, the wall extension 1611
Above the light source 150 and the covering light source 150.
The wall extension 1611 extends inwardly to form flexible elastic arm adjacent to the end of the display panel 170
1612.The elastic arm 1612 includes an a top surface 1612a and supporting surface 1612b relative with the top surface 1612a, the supporting surface
1612b height less than the lower surface of wall extension 1611 height, the supporting surface 1612b be held on the light guide plate 120 with
Micro interference is formed, so as to prevent the light that the light source 150 is sent from being spilt from the lateral margin of light guide plate 120, causes the light source
150 utilization rate is low and reduces the taste of the optics of the backlight module 100.Wherein, the supporting surface 1612b and the light guide plate
During the 120 micro interference of formation, amount of interference is more than manufacturing tolerance, the manufacturing tolerance of the light guide plate 120 of the blooming piece 130
And the assembling tolerance sum of the backlight module 100, but the supporting surface 1612b and the light guide plate 120 amount of interference should not
It is excessive and damage the light guide plate 120.Because the elastic arm 1612 is integrally formed from the glue frame 160, set without extra
Hardware, which to be formed with the light guide plate 120, to be in close contact, and advantageously reduces hardware cost.In addition, the elastic arm 1612 is formed at institute
State in glue frame 160, therefore can be assembled simultaneously with the glue frame 160, be advantageous to simplify assembling procedure.
The top surface 1612a of the elastic arm 1612 be an incline structure face, its upper table with the wall extension 1611
Face is stepped, and the top surface 1612a is less than the upper surface of the wall extension 1611, and is not connected with the display panel 170.
The top surface 1612a can prevent the elastic arm 1612 from contradicting in prepressing deformation to arrive less than the upper surface of the wall extension 1611
The display panel 170 and cause the damage of the display panel 170.The supporting surface 1612b is also the face of incline structure, institute
The lower surface for stating supporting surface 1612b and the wall extension 1611 is stepped, and the supporting surface 1612b is less than the wall extension
1611 lower surface.The supporting surface 1612b is less than the lower surface of the wall extension 1611, advantageously forms the supporting surface
The structure that 1612b is contacted all the time with the light guide plate 120, so as to prevent light leak.
When the display panel 170 is installed in the glue frame 160, the flexible elastic arm 1612 produces elastic shape
Become, be held in the upper surface of the light guide plate 120.And when the display panel 170 is not installed in the glue frame 160, institute
State elastic arm 1612 and elastic deformation does not occur, in the raw, front end and the light guide plate of the supporting surface 1612b now
120 just contact or have certain interval, the supporting surface 1216b under the nature and the light guide plate 120
Surface be in relative tilt state.In the present embodiment, the front end of the supporting surface 1612b is to be partially submerged into the light guide plate
120 upper surface.Because the elastic arm 1612 is flexible, the display panel 170 can be installed to the glue frame 160
When, the optimal effect for preventing light leak is reached by finely tuning the exposure of the elastic arm 1612 and the light guide plate 120.Other
In embodiment, the supporting surface 1612b can also be globoidal structure, described when the supporting surface 1612b is globoidal structure
The supporting surface 1612b center of circle is formed in the side away from the light guide plate 120, the light guide plate 120 with the supporting surface 1612b
Tangent line intersects.Elastic deformation is produced by then passing through the flexible elastic arm 1612 to be held on the light guide plate 120, can
The supporting surface 1612b and the light guide plate 120 for ensuring the elastic arm 1612 are in close contact, so as to reach preferable light leakage
Effect.And because the supporting surface 1612b is inclined-plane or globoidal structure, therefore do not have to the flatness of the supporting surface 1612b
It is strict with the effect of can be achieved to prevent light leak.
In the present embodiment, the elastic arm 1612 also includes connecting portion 1613, and the connecting portion 1613 connects described support
Hold face 1612b and the wall extension 1611.The connecting portion 1613 has an at least depressed part 1613a, to increase the elastic arm
1612 elasticity.In the present embodiment, there is a depressed part 1613a, and the depressed part on the connecting portion 1613
The curved structures of 1613a.Preferably, the depressed part 1613a is the laterally closer top surface along the supporting surface 1612b
1612a direction depression.The curved depressed part of the connecting portion 1613 can reduce or remit the connecting portion 1613 and produce stress collection
Middle phenomenon and cause the elastic arm 1612 to be easily broken off.
It refer to Fig. 6, Fig. 6 is the profile for the liquid crystal display 10 that third embodiment of the invention is provided, this hair
The liquid crystal display 10 that bright 3rd embodiment is provided includes display panel 170 and backlight module 100, the backlight module
100 include backboard 110, reflector plate 140, light guide plate 120, blooming piece 130, light source 150, light source strip 180 and glue frame 160.Institute
State reflector plate 140 to be contained in the backboard 110, the light guide plate 120 is arranged on the reflector plate 140, the optical film
Piece 130 is arranged on the light guide plate 120, and the light source 150 is fixed on the light source strip 180, and the glue frame 160 is contained in
In the backboard 110, and the glue frame 160 fixes the blooming piece 130, the light guide plate 120 and the light source strip 180,
The display panel 170 is arranged on the blooming piece 130, and is accepted by the glue frame 160, the upper table of the glue frame 160
Face is fixed together with the display panel 170 by glue or adhesive tape.
In the present embodiment, the diffusion sheet 131 and two that the blooming piece 130 includes setting gradually from the bottom to top increases
Paillette 132.In other embodiments, the blooming piece 130 can only include two 131 and two increasings of diffusion sheet
Paillette 132 or the blooming piece 130 only include two diffusion sheets 131, can also be other and include at least one institute
State the collocation mode of diffusion sheet 131.The light guide plate 120 has an incidence surface 121, and the light source 150 is adjacent to the incidence surface
121 are set, the light that the light source 150 is sent, through the incidence surface 121 again successively by the diffusion sheet 131, two blast
After piece 132, change into the backlight that brightness is high and briliancy is homogeneous and inject the display panel 170.
The glue frame 160 has four side walls 161, and four side walls 161, which join end to end to enclose, to be set to form the square of closing
Structure, the light guide plate 120, the blooming piece 130 and the light source 150 are installed in the glue frame 160.The glue frame
160 are molded by the way of injection molding, and its color is white.Wherein one side wall 161 of the neighbouring light source 150 is inside
Extension forms a wall extension 1611, and the display panel 170 carries the upper surface for being fixed on the wall extension 1611.In the present embodiment
In, the light source 150 is located between the side wall 161 and the light guide plate 120 of the glue frame 160, the wall extension 1611
Above the light source 150 and the covering light source 150.
The wall extension 1611 extends inwardly to form flexible elastic arm adjacent to the end of the display panel 170
1612.The elastic arm 1612 includes an a top surface 1612a and supporting surface 1612b relative with the top surface 1612a, the supporting surface
1612b height less than the lower surface of wall extension 1611 height, the supporting surface 1612b be held on the light guide plate 120 with
Micro interference is formed, so as to prevent the light that the light source 150 is sent from being spilt from the lateral margin of light guide plate 120, causes the light source
150 utilization rate is low and reduces the taste of the optics of the backlight module 100.Wherein, the supporting surface 1612b and the light guide plate
During the 120 micro interference of formation, amount of interference is more than manufacturing tolerance, the manufacturing tolerance of the light guide plate 120 of the blooming piece 130
And the assembling tolerance sum of the backlight module 100, but the supporting surface 1612b and the light guide plate 120 amount of interference should not
It is excessive and damage the light guide plate 120.Because the elastic arm 1612 is integrally formed from the glue frame 160, set without extra
Hardware, which to be formed with the light guide plate 120, to be in close contact, and advantageously reduces hardware cost.In addition, the elastic arm 1612 is formed at institute
State in glue frame 160, therefore can be assembled simultaneously with the glue frame 160, be advantageous to simplify assembling procedure.
The top surface 1612a of the elastic arm 1612 be an incline structure face, its upper table with the wall extension 1611
Face is stepped, and the top surface 1612a is less than the upper surface of the wall extension 1611, and is not connected with the display panel 170.
The top surface 1612a can prevent the elastic arm 1612 from contradicting in prepressing deformation to arrive less than the upper surface of the wall extension 1611
The display panel 170 and cause the damage of the display panel 170.The supporting surface 1612b is also the face of incline structure, institute
The lower surface for stating supporting surface 1612b and the wall extension 1611 is stepped, and the supporting surface 1612b is less than the wall extension
1611 lower surface.The supporting surface 1612b is less than the lower surface of the wall extension 1611, advantageously forms the supporting surface
The structure that 1612b is contacted all the time with the light guide plate 120, so as to prevent light leak.
When the display panel 170 is installed in the glue frame 160, the flexible elastic arm 1612 produces elastic shape
Become, be held in the upper surface of the light guide plate 120.And when the display panel 170 is not installed in the glue frame 160, institute
State elastic arm 1612 and elastic deformation does not occur, in the raw, front end and the light guide plate of the supporting surface 1612b now
120 just contact or have certain interval, the supporting surface 1216b under the nature and the light guide plate 120
Surface be in relative tilt state.In the present embodiment, the front end of the supporting surface 1612b is to be partially submerged into the light guide plate
120 upper surface.Because the elastic arm 1612 is flexible, the display panel 170 can be installed to the glue frame 160
When, the optimal effect for preventing light leak is reached by finely tuning the exposure of the elastic arm 1612 and the light guide plate 120.Other
In embodiment, the supporting surface 1612b can also be globoidal structure, described when the supporting surface 1612b is globoidal structure
The supporting surface 1612b center of circle is formed in the side away from the light guide plate 120, the light guide plate 120 with the supporting surface 1612b
Tangent line intersects.Elastic deformation is produced by then passing through the flexible elastic arm 1612 to be held on the light guide plate 120, can
The supporting surface 1612b and the light guide plate 120 for ensuring the elastic arm 1612 are in close contact, so as to reach preferable light leakage
Effect.And because the supporting surface 1612b is inclined-plane or globoidal structure, therefore do not have to the flatness of the supporting surface 1612b
It is strict with the effect of can be achieved to prevent light leak.
In the present embodiment, the elastic arm 1612 also includes connecting portion 1613, and the connecting portion 1613 connects described support
Hold face 1612b and the wall extension 1611.The connecting portion 1613 has an at least depressed part 1613a, to increase the elastic arm
1612 elasticity.In the present embodiment, there is two depressed part 1613a, and the depressed part on the connecting portion 1613
The curved structures of 1613a.Preferably, the two depressed parts 1613a is the opposite concave shape in two opposite sides of the connecting portion 1613
Into.The curved depressed part of the connecting portion 1613 can reduce or remit the connecting portion 1613 and produce stress concentration phenomenon and cause institute
Elastic arm 1612 is stated easily to be broken off.
It refer to Fig. 7, Fig. 7 is the profile for the liquid crystal display 10 that four embodiment of the invention is provided, this hair
The liquid crystal display 10 that bright 4th embodiment is provided includes display panel 170 and backlight module 100, the backlight module
100 include backboard 110, reflector plate 140, light guide plate 120, blooming piece 130, light source 150, light source strip 180 and glue frame 160.Institute
State reflector plate 140 to be contained in the backboard 110, the light guide plate 120 is arranged on the reflector plate 140, the optical film
Piece 130 is arranged on the light guide plate 120, and the light source 150 is fixed on the light source strip 180, and the glue frame 160 is contained in
In the backboard 110, and the glue frame 160 fixes the blooming piece 130, the light guide plate 120 and the light source strip 180,
The display panel 170 is arranged on the blooming piece 130, and is accepted by the glue frame 160, the upper table of the glue frame 160
Face is fixed together with the display panel 170 by glue or adhesive tape.
In the present embodiment, the diffusion sheet 131 and two that the blooming piece 130 includes setting gradually from the bottom to top increases
Paillette 132.In other embodiments, the blooming piece 130 can only include two 131 and two increasings of diffusion sheet
Paillette 132 or the blooming piece 130 only include two diffusion sheets 131, can also be other and include at least one institute
State the collocation mode of diffusion sheet 131.The light guide plate 120 has an incidence surface 121, and the light source 150 is adjacent to the incidence surface
121 are set, the light that the light source 150 is sent, through the incidence surface 121 again successively by the diffusion sheet 131, two blast
After piece 132, change into the backlight that brightness is high and briliancy is homogeneous and inject the display panel 170.
The glue frame 160 has four side walls 161, and four side walls 161, which join end to end to enclose, to be set to form the square of closing
Structure, the light guide plate 120, the blooming piece 130 and the light source 150 are installed in the glue frame 160.The glue frame
160 are molded by the way of injection molding, and its color is white.Wherein one side wall 161 of the neighbouring light source 150 is inside
Extension forms a wall extension 1611, and the display panel 170 carries the upper surface for being fixed on the wall extension 1611.In the present embodiment
In, the light source 150 is located between the side wall 161 and the light guide plate 120 of the glue frame 160, the wall extension 1611
Above the light source 150 and the covering light source 150.
The wall extension 1611 extends inwardly to form flexible elastic arm adjacent to the end of the display panel 170
1612.The elastic arm 1612 includes an a top surface 1612a and supporting surface 1612b relative with the top surface 1612a, the supporting surface
1612b height is less than the lower surface of wall extension 1611 height,
The supporting surface 1612b is held on the diffusion sheet 131 to form micro interference, so as to prevent the light source
150 light sent are spilt from the lateral margin of diffusion sheet 131, are caused the utilization rate of the light source 150 low and are reduced the backlight mould
The optics taste of block 100.Wherein, when the supporting surface 1612b forms micro interference with the diffusion sheet 131, amount of interference is more than
The assembling tolerance of the manufacturing tolerance of the blooming piece 130, the manufacturing tolerance of the light guide plate 120 and the backlight module 100
Sum, but the supporting surface 1612b and the diffusion sheet 131 amount of interference are not answered excessive and damage the diffusion sheet 131.Due to
The elastic arm 1612 is integrally formed from the glue frame 160, sets hardware to be formed closely with the diffusion sheet 131 without extra
Contact, advantageously reduces hardware cost.In addition, the elastic arm 1612 is formed in the glue frame 160, therefore can be with the glue frame
160 assemble simultaneously, are advantageous to simplify assembling procedure.
The top surface 1612a of the elastic arm 1612 be a planar structure face, its upper table with the wall extension 1611
Face is stepped, and the top surface 1612a is less than the upper surface of the wall extension 1611, and is not connected with the display panel 170.
The top surface 1612a can prevent the elastic arm 1612 from contradicting in prepressing deformation to arrive less than the upper surface of the wall extension 1611
The display panel 170 and cause the damage of the display panel 170.The supporting surface 1612b is the face of incline structure, described
Supporting surface 1612b and the wall extension 1611 lower surface are stepped, and the supporting surface 1612b is higher than the wall extension 1611
Lower surface.The supporting surface 1612b is higher than the lower surface of the wall extension 1611, is advantageous to prevent the supporting surface 1612b
Excessively oppress the diffusion sheet 131 and cause the compression of diffusion sheet 131.The lower surface of wall extension 1611 is less than described
The upper surface of diffusion sheet 131 so that the thickness of the wall extension 1611 is made to thicker and ensures the wall extension 1611
Intensity, but the lower surface of the wall extension 1611 be not less than the light guide plate 120 upper surface, can be just with the leaded light
The contact of plate 120 can also have certain interval with the light guide plate 120, to prevent the lower surface of the wall extension 1611 to institute
State light guide plate 120 and cause compression.
When the display panel 170 is installed in the glue frame 160, the flexible elastic arm 1612 produces elastic shape
Become, the upper surface being held on the diffusion sheet 131, and when the display panel 170 is not installed in the glue frame 160,
Elastic deformation does not occur for the elastic arm 1612, in the raw, front end and the diffusion of the supporting surface 1612b now
Piece 131 just contacts or has certain interval, the supporting surface 1216b under the nature and the diffusion sheet
131 surface is in relative tilt state.In other embodiments, when the quantity of the diffusion sheet 131 is two situation, institute
State supporting surface 1216b to be held on wherein one diffusion sheet 131, it is preferable that the supporting surface 1216b is held in lower
On the diffusion sheet 131.In the present embodiment, the front end of the supporting surface 1612b is partially submerged into the diffusion sheet 131
Upper surface.Because the elastic arm 1612 is flexible, when the display panel 170 can be installed to the glue frame 160, lead to
Cross the exposure for finely tuning the elastic arm 1612 and the diffusion sheet 131 and reach the optimal effect for preventing light leak.
In other embodiments, the supporting surface 1612b can also be globoidal structure, when the supporting surface 1612b is
During globoidal structure, the center of circle of the supporting surface 1612b in the side away from the diffusion sheet 131, the diffusion sheet 131 with it is described
Supporting surface 1612b forms tangent line and intersected.Elastic deformation is produced by then passing through the flexible elastic arm 1612 and is held in institute
Stating on diffusion sheet 131, it can be ensured that the supporting surface 1612b of the elastic arm 1612 is in close contact with the diffusion sheet 131, so as to
Reach preferable leakproof light effect.And because the supporting surface 1612b is inclined-plane or globoidal structure, therefore to the supporting surface
1612b flatness is it is not strictly necessary that the effect of can be achieved to prevent light leak.
The elastic arm 1612 also includes a connecting portion 1613, and the connecting portion 1613 connects the supporting surface 1612b and institute
State wall extension 1611.In order to increase the elasticity of the elastic arm 1612, the connecting portion 1613 is provided with an at least depressed part
1613a, and each curved structures of the depressed part 1613a.Preferably, the connecting portion 1613 is along the supporting surface
1612b laterally closer top surface 1612a direction is recessed to form a depressed part 1613a.In other embodiment party
In formula, the two opposite sides of the connecting portion 1613, i.e., along the side of the supporting surface 1612b and the side of the top surface 1612a,
Opposite depression forms the two depressed part 1613a.The curved structures of depressed part 1613a, can reduce or remit the connecting portion 1613
Produce stress concentration phenomenon and cause the elastic arm 1612 to be easily broken off.
Embodiment of above is merely illustrative of the technical solution of the present invention and unrestricted, although with reference to better embodiment pair
The present invention is described in detail, it will be understood by those within the art that, technical scheme can be carried out
Modification or equivalent substitution, without departing from the spirit and scope of technical solution of the present invention.
Claims (15)
1. a kind of backlight module, including light guide plate, light source, blooming piece and glue frame；The light source is located at the light guide plate side,
For the blooming piece on the light guide plate, the glue frame includes end to end multiple side walls, the light guide plate, the light
Source and the blooming piece are fixed in the glue frame；It is characterized in that：The glue frame is close to the wherein side of the light source side
Wall extends inwardly to form a wall extension, and the wall extension covers the light source；The wall extension extends inwardly to form an elastic arm；It is described
Elastic arm includes a top surface and a supporting surface relative with the top surface；Elastic deformation occurs when the elastic arm is pressurized so that described support
The face of holding is held on the light guide plate or the blooming piece；The top surface is not in contact with the light guide plate or the blooming piece.
2. backlight module as claimed in claim 1, it is characterised in that described to support when elastic deformation does not occur for the elastic arm
The relatively described inclined posture of light guide plate in face.
3. backlight module as claimed in claim 1, it is characterised in that the supporting surface is held in the light guide plate or described
On blooming piece, forming portion tap is touched.
4. backlight module as claimed in claim 1, it is characterised in that the supporting surface is globoidal structure or ramp structure.
5. backlight module as claimed in claim 1, it is characterised in that the elastic arm also includes a connecting portion, the connecting portion
The supporting surface and the wall extension are connected, the connecting portion has an at least depressed part, to increase the elasticity of the elastic arm.
6. backlight module as claimed in claim 5, it is characterised in that an at least depressed part is two, respectively by described
The opposite side of connecting portion two is recessed to be formed in opposite directions.
7. backlight module as claimed in claim 5, it is characterised in that each curved structure of the depressed part.
8. backlight module as claimed in claim 1, it is characterised in that the blooming piece includes an at least diffusion sheet, described
Supporting surface is held on the diffusion sheet.
9. backlight module as claimed in claim 1, it is characterised in that the top surface is less than the upper surface of the wall extension.
10. a kind of liquid crystal display device, including a backlight module and the display panel on the backlight module；The back of the body
Optical mode group includes light guide plate, light source, blooming piece and glue frame；The light source is located at the light guide plate side, the blooming piece
On the light guide plate, the glue frame includes end to end multiple side walls, the light guide plate, the light source and the optics
Diaphragm is fixed in the glue frame；It is characterized in that：Wherein one side wall of the glue frame close to the light source side is inwardly prolonged
Stretch to form a wall extension, the wall extension covers the light source and the carrying display panel；The wall extension extends inwardly to form
One elastic arm；The elastic arm includes a top surface and a supporting surface relative with the top surface；When being pressurized elastic shape occurs for the elastic arm
Become, so that the supporting surface is held on the light guide plate or the blooming piece；The top surface not with the light guide plate or the light
Diaphragm is learned to be in contact.
11. liquid crystal display device as claimed in claim 10, it is characterised in that the supporting surface is globoidal structure or inclined-plane knot
Structure.
12. liquid crystal display device as claimed in claim 10, it is characterised in that the elastic arm also includes a connecting portion, described
Connecting portion connects the supporting surface and the wall extension, and the connecting portion has an at least depressed part, to increase the elastic arm
Elasticity.
13. liquid crystal display device as claimed in claim 12, it is characterised in that an at least depressed part is two, respectively
It is recessed in opposite directions by the opposite side of connecting portion two and is formed.
14. liquid crystal display device as claimed in claim 10, it is characterised in that the top surface is less than the upper table of the wall extension
Face.
15. liquid crystal display device as claimed in claim 10, it is characterised in that when elastic deformation does not occur for the elastic arm, institute
State the relatively described inclined posture of light guide plate of supporting surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410711163.0A CN105715984B (en) | 2014-12-01 | 2014-12-01 | Backlight module and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410711163.0A CN105715984B (en) | 2014-12-01 | 2014-12-01 | Backlight module and liquid crystal display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105715984A CN105715984A (en) | 2016-06-29 |
| CN105715984B true CN105715984B (en) | 2018-03-23 |
Family
ID=56145882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410711163.0A Active CN105715984B (en) | 2014-12-01 | 2014-12-01 | Backlight module and liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105715984B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106707615A (en) * | 2016-12-21 | 2017-05-24 | 苏州胜利精密制造科技股份有限公司 | Ultrathin display device |
| CN110456568B (en) * | 2019-08-06 | 2020-08-04 | 深圳市利航电子有限公司 | Backlight bright edge removing structure |
| CN113625387B (en) * | 2021-08-20 | 2023-06-02 | 业成科技（成都）有限公司 | Backlight module |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1740874A (en) * | 2004-08-24 | 2006-03-01 | 三星康宁株式会社 | Surface light source device and backlight assembly having the same |
| CN103123070A (en) * | 2011-11-18 | 2013-05-29 | 上海中航光电子有限公司 | Liquid crystal display module and backlight module thereof |
| CN103676318A (en) * | 2013-12-19 | 2014-03-26 | 康佳集团股份有限公司 | Backlight structure of liquid crystal display television |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5052860B2 (en) * | 2005-12-15 | 2012-10-17 | 三菱電機株式会社 | Planar light source device and display device using the same |
| US20070139575A1 (en) * | 2005-12-16 | 2007-06-21 | Ceramate Technical Co., Ltd. | Display module for LCD |
-
2014
- 2014-12-01 CN CN201410711163.0A patent/CN105715984B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1740874A (en) * | 2004-08-24 | 2006-03-01 | 三星康宁株式会社 | Surface light source device and backlight assembly having the same |
| CN103123070A (en) * | 2011-11-18 | 2013-05-29 | 上海中航光电子有限公司 | Liquid crystal display module and backlight module thereof |
| CN103676318A (en) * | 2013-12-19 | 2014-03-26 | 康佳集团股份有限公司 | Backlight structure of liquid crystal display television |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105715984A (en) | 2016-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11353648B2 (en) | Backlight module and display device | |
| CN103792729B (en) | Thin display module | |
| CN202522806U (en) | Fixed structure of display optical diaphragm | |
| CN102376199A (en) | Display device | |
| CN208834054U (en) | Backlight module and display device | |
| CN204087706U (en) | Frame-free displaying device | |
| CN105715984B (en) | Backlight module and liquid crystal display device | |
| CN204554536U (en) | Down straight aphototropism mode set and liquid crystal indicator | |
| CN110807989B (en) | Display device | |
| TWI408442B (en) | Liquid crystal display device | |
| CN104391399A (en) | Light leaking prevention liquid crystal display | |
| WO2016078087A1 (en) | Display module | |
| CN104880845A (en) | Liquid crystal display module, liquid crystal display and mobile terminal | |
| JP2010282038A (en) | Liquid crystal module | |
| CN103245985A (en) | LED lens used for direct type liquid crystal backlight | |
| CN208421464U (en) | A kind of backlight module and liquid crystal display die set | |
| TWI623798B (en) | Plastic frame, backlight module, and flat panel display device using the same | |
| CN104820259B (en) | Light guide plate, backlight module and display device | |
| CN207081920U (en) | A kind of backlight module and display | |
| TWM447508U (en) | Backboard of the backlight module | |
| CN207096639U (en) | A kind of backlight module | |
| CN211123563U (en) | Liquid crystal display module with improved light-emitting effect | |
| CN209373296U (en) | Backlight module and display panel | |
| CN204086754U (en) | A kind of liquid crystal display module for the narrow frame of mobile phone | |
| CN105570756B (en) | Backlight module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20161201 Address after: Guangdong province Shenzhen city Baoan District town Longhua tenth Industrial Zone tabulaeformis East Ring Road No. 2 two Applicant after: Hongfujin Precise Industry (Shenzhen) Co., Ltd. Applicant after: Hon Hai Precision Industry Co., Ltd. Address before: Taiwan Hsinchu County Chinese jhubei City, Taiwan 1 yuan a Street No. 7 Building 1 Applicant before: YEXIN TECHNOLOGY CONSULATION CO., LTD. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |