CN104879685B - Backlight module and its display screen - Google Patents
Backlight module and its display screen Download PDFInfo
- Publication number
- CN104879685B CN104879685B CN201510259942.6A CN201510259942A CN104879685B CN 104879685 B CN104879685 B CN 104879685B CN 201510259942 A CN201510259942 A CN 201510259942A CN 104879685 B CN104879685 B CN 104879685B
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- CN
- China
- Prior art keywords
- backlight module
- plate
- light
- light guide
- guide plate
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- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/10—Pendants, arms, or standards; Fixing lighting devices to pendants, arms, or standards
- F21V21/108—Arms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/02—Refractors for light sources of prismatic shape
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Planar Illumination Modules (AREA)
Abstract
The present invention is suitable for display device technology field, provides a kind of backlight module and its display screen.Above-mentioned backlight module includes iron frame, the iron frame is arranged by bottom plate and enclosing on the bottom plate to be composed with four side plates for forming cavity, further include the light guide plate being cascading in the cavity, diffusion barrier and bright enhancement film group, the side plate has also been bent to form reinforcing plate, it is provided with reflective layer on the medial surface and the bottom plate of four side plates, illuminating circuit is provided in the gap between the side of the light guide plate and the iron frame side plate；It is provided on the side of the light guide plate for reducing the prism pattern of the light-guide edge bright line.Above-mentioned display screen includes above-mentioned backlight module.Backlight module provided in an embodiment of the present invention, border width is narrow and intensity is high, ensure that the intensity of product entirety, meets the needs of display screen narrow side and ultrathin development.
Description
Technical field
The invention belongs to display device technology field more particularly to a kind of backlight modules and its display screen.
Background technology
Liquid crystal display product is that most the technical products of most mainstream, the continuous development of mobile interchange technology are portable extensively at present
Ultra-thin to be increasingly becoming mobile electronic device development trend, this requires LCD MODULE (LCM) narrow sides and ultrathin increasingly.
Existing LCD backlight module, main member by：The groups such as light source, holder, reflectance coating, light guide plate, diffusion barrier and bright enhancement film
At.Light source mainly uses LED-FPC (Light-Emitting Diode soft arranging wire plate), and each part is fixedly mounted using glue frame.And it is existing
Glue frame is influenced by the injection molding limit, is limited the requirement that frame continues to narrow, and narrow plastic cement frame lacks intensity, is easy
Deformation, affects the stability of product entirety.
Invention content
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, a kind of backlight module, border width are provided
Narrow and intensity is high, ensure that the intensity of product entirety, meets the needs of display screen narrow side and ultrathin development.
The invention is realized in this way：A kind of backlight module, including iron frame, the iron frame is by bottom plate and encloses setting in institute
State and be composed with four side plates for forming cavity on bottom plate, further include the light guide plate being cascading in the cavity,
Diffusion barrier and bright enhancement film group, the side plate have also been bent to form reinforcing plate, on the medial surface and the bottom plate of four side plates
It is provided with reflective layer, illuminating circuit is provided in the gap between the side of the light guide plate and the side plate；The light guide plate
Side on be provided with for reducing the prism pattern of the light-guide edge bright line.
Further, the reflectance coating for reflection light is additionally provided on the bottom plate.
Specifically, it is provided with shading glue film between the top surface of the side plate and the bright enhancement film group.
Specifically, the bright enhancement film group includes lower bright enhancement film and upper bright enhancement film, and the shading glue film is arranged in the upper increasing
On light film.
Preferably, the shading glue film is black and white double faced adhesive tape layer or black layers of two-sided.
Specifically, wantonly 180 ° of three bendings in four side plates form the reinforcing plate, the last one described side plate
90-degree bent is formed with the step for placing display panel.
Specifically, it is both provided with the prism pattern on four sides of the light guide plate, and is provided on every side multiple；
The prism pattern on wherein wantonly three sides is laterally arranged along the length direction of the light guide plate, the rib on another side
Mirror line is longitudinally disposed along the thickness direction of the light guide plate.
Specifically, one end that the prism pattern is vertically arranged on the light guide plate is light inlet, and the iron frame is provided with
The side of the step is located at the same side with the light inlet, and the illuminating circuit is set in the gap of the two.
The present invention also provides a kind of display screens, including above-mentioned backlight module.
A kind of backlight module provided by the invention, by being provided with iron frame, and is provided with reinforcing plate, to not only ensure
Whole use intensity, additionally it is possible to reduce whole dimensional thickness, meet the design of backlight module ultrathin and to iron frame
It is required that.And it is provided with reflective layer on the medial surface and bottom plate of each side plate of iron frame, so as to reduce loss of light source, improves the back of the body
The brightness of light.It is provided with prism pattern on the side of light guide plate simultaneously, so as to reduce the seam between iron frame and light guide plate
Light can be injected into light guide plate to greatest extent, effectively reduce edge light leakage, it is ensured that whole by the light that gap reflects
The backlight illumination of a backlight module.
Using the display screen of above-mentioned backlight module, since the design that iron frame directly wraps up backlight module is narrower by frame
Change, that is, increase the anti-interference intensity that backlight intensity also increases display screen, meets to display screen narrow side increasingly and ultra-thin
Change the requirement of development.
Description of the drawings
Fig. 1 is the diagrammatic cross-section of backlight module provided in an embodiment of the present invention；
Fig. 2 is the diagrammatic cross-section of another structure of backlight module provided in an embodiment of the present invention；
Fig. 3 is the whole stereoscopic schematic diagram of iron frame in backlight module provided in an embodiment of the present invention；
Fig. 4 is the whole stereoscopic schematic diagram of light guide plate in backlight module provided in an embodiment of the present invention；
Fig. 5 is the close-up schematic view at A in Fig. 3；
Fig. 6 is the close-up schematic view at B in Fig. 4.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in Fig. 1, Fig. 3 and Fig. 5, a kind of backlight module 1 provided in an embodiment of the present invention, including iron frame 11, iron frame 11
It is arranged on bottom plate 111 by bottom plate 111 and enclosing and is composed with four side plates 112 for forming cavity 113, in actual production system
When making, to improve the efficiency of processing, each side plate 112 is set to be integrally formed with bottom plate 111 by bending using super thin metal plank, from
And be open as top surface, it is similar to rectangular drawer structure.The backlight module 1 further includes being cascading in cavity 113
Light guide plate 12, diffusion barrier 13 and bright enhancement film group 14, light guide plate 12 conduct light through diffusion barrier 13 uniformly diverging after, so as to
The area of illumination is enough increased, finally being converged to light using bright enhancement film group 14 enhances, to ensure that the intensity of backlight.For
The structural strength for improving iron frame 11, avoids deforming, has also been bent to form reinforcing plate 114 in side plate 112, reinforcing plate 114 is set
The intensity of each side plate 112 can be increased by setting, and improve whole stability.
Specifically, as shown in Fig. 1, Fig. 3 and Fig. 5, in the present embodiment, each backlight module is stored in the cavity of iron frame 11
In 113, to ensure backlight intensity, on the medial surface and bottom plate 111 of four side plates 112 be both provided with reflective layer (does not mark in figure
Show), reflective layer is process by the way of spraying or plating.And the seam between the side of light guide plate 12 and side plate 112
Illuminating circuit (not indicated in figure) is provided in gap；It is provided on the side of light guide plate 12 for reducing 12 edge bright line of light guide plate
Prism pattern 15, the cross section of prism pattern 15 is in " V " type.Setting in this way, illuminating circuit electrified light emitting, light, which enters, leads
It after tabula rasa 12, is dissipated everywhere in light guide plate 12, due to being provided with prism pattern 15 on the side of light guide plate 12, and prism pattern 15 is right
By being equivalent to convex lens face for interior light outward in light guide plate 12, the light that can will be reflected from 12 side of light guide plate
Part is reflected back light guide plate 12, while the scattering light that will be reflected from 12 side of light guide plate focuses more on the side plate of iron frame 11
On 112, due to setting reflective layer on the medial surface of side plate 112, just it can reflect light back into light guide plate 12, to reduce iron
Gap between frame 11 and light guide plate 12 and the edge bright line generated, bottom line reduce loss of light source, to improve backlight
Brightness.
Backlight module 1 provided in an embodiment of the present invention, by being provided with the iron frame 11 with cavity 113, by each backlight mould
Block is arranged in cavity 113, and is provided with reflective layer on the medial surface of each side plate 112, is stored and is accommodated by cavity 113, will
Light source emits and is stored in cavity 113, reduces loss of light source to greatest extent, to improve the brightness of backlight, overcomes
Traditional white plastic frame madial wall light transmission and reflectivity is low causes to lose big defect in backlight illumination.And the side of iron frame 11
Reinforcing plate 114 is bent on plate 112, to not only meet the demand of frame narrow sideization development, but also the frame ensured uses
Structural strength.Meanwhile by being provided with prism pattern 15 on the side of light guide plate 12, by the reflection of prism pattern 15, will leak
The light gone out is reflected back light guide plate 12 to greatest extent, reduces the loss of light source, effectively reduces edge light leakage, reduces side
The phenomenon that edge bright line.
Further, as shown in Fig. 2, according to different requirements, when enough high to brightness requirement and do not have to backlight thickness
When requiring, after first can forming reflective layer by the way of simple oil spout or coating to each side plate 112 of iron frame 11, also the bottom of at
It is provided with the reflectance coating 16 for reflection light on plate 111, is reflected by the enhancing of reflectance coating 16, improves the luminous strong of backlight
Degree.And when the reflectivity of the reflective layer on 11 side plate 112 of iron frame reaches sufficiently high (95%-97%), eliminate the need for reflectance coating
16, backlight thickness and material cost is saved to reach to reduce, and increase antistatic and radiation interference ability.And
Specific design method can be selected according to specifically production requirement, is not limited herein.
Specifically, as depicted in figs. 1 and 2, after being placed on each rear panel module in cavity 113, just in side plate 112
Shading glue film 17 is provided between top surface and bright enhancement film group 14, edge light leakage can be blocked.Shading glue film 17 is to be cut out with knife film
The black and white double faced adhesive tape paper or black Double-face gummed paper cut use machine when these shading glue films 17, which cannot reach narrow frame, to be required
People's dispensing replaces traditional patch photomask, dispensing that the control of the region at black shading glue film 17 and backlight module edge can exist
In the width range of 0.2-0.3mm, traditional knife can be broken through and cut the limitation that membrane material effectively pastes width for 0.6mm, realized
Narrower edge.
Specifically, as depicted in figs. 1 and 2 in the present embodiment, bright enhancement film group 14 includes lower bright enhancement film 142 and upper bright enhancement film
141, lower bright enhancement film 142 is arranged on diffusion barrier 13, and upper bright enhancement film 141 is arranged on lower bright enhancement film 142, and shading glue film 17 is arranged
On upper bright enhancement film 141.In this way, the common convergence by lower bright enhancement film 142 and upper bright enhancement film 141 acts on, light is enhanced
Intensity, and then improve the intensity of backlight.
Specifically, as shown in Figure 3 and Figure 5, the number for the reinforcing plate 114 being bent to form on 11 each side plate 112 of iron frame can
To be arranged according to requiring, in this embodiment, to ensure the structural strength of iron frame 11, wantonly three bendings in four side plates 112
180 ° of formation reinforcing plates 114 are not susceptible to deform to promote the whole structural strength of iron frame 11.An and remaining side plate
112 bend in 90 °, i.e. the state with 111 keeping parallelism of bottom plate, so as to form the step 115 for placing display panel, really
Protect the stability of display panel installation.
Specifically, as shown in Figure 4 and Figure 6, to ensure backlight intensity and reducing edge bright border to the full extent the case where
Occur, be both provided with prism pattern 15 on four sides of light guide plate 12, and per side on be provided with it is multiple, and it is three wherein wantonly
Prism pattern 15 on side is laterally arranged along the length direction of light guide plate 12, so as to the light that will be projected out of light guide plate 12
It is reflected back in light guide plate 12.Prism pattern 15 on 12 remaining another side of light guide plate is longitudinally set along the thickness direction of light guide plate 12
It sets.And this one end is set to light inlet, then make iron frame 11 be provided with step 115 side and light inlet be located at it is same
Side, and illuminating circuit is set in the gap of the two.In this way, the other three side plate 112 of iron frame 11 is provided with cross with light guide plate 12
Side to prism pattern 15 is opposite, and the light that illuminating circuit is sent out enters light guide plate 12 from light inlet, also, due to the side
On be provided with longitudinal prism pattern 15, the prism pattern 15 of the longitudinal direction is equivalent to concave mirror surface, can be by light by the prism pattern 15
Diverging, is injected into light guide plate 12, it is ensured that the uniformity of 12 light inlet brightness of light guide plate from different angles.
The embodiment of the present invention additionally provides a kind of display screen, including above-mentioned backlight module 1.By using above-mentioned backlight
Module 1 is increased backlight intensity and also increased since frame more being narrowed using the design of the directly package backlight module of iron frame 11
The anti-interference intensity of display screen, it is big to breach traditional plastic frame width, intensity low defect.1 backlight of backlight module
Intensity is high, and frame narrow side, thickness greatly reduces, and meets the requirement to display screen narrow side increasingly and ultrathin development.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modification, equivalent replacement or improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (7)
1. a kind of backlight module, which is characterized in that including iron frame, the iron frame by bottom plate and enclose be arranged on the bottom plate with
Four side plates for forming cavity are composed, and further include the light guide plate, diffusion barrier and increasing being cascading in the cavity
Light film group, 180 ° of formation reinforcing plates of wantonly three bendings in four side plates, the last one described side plate 90-degree bent are formed with
Step for placing display panel is laterally arranged on three sides of the light guide plate opposite with the reinforcing plate useful
In on the first prism pattern for reducing the light-guide edge bright line, the side of the light guide plate opposite with the step longitudinally
It is provided with for reducing the second prism pattern of the light-guide edge bright line, on the medial surface and the bottom plate of four side plates
It is provided with reflective layer, illuminating circuit is provided in the gap between the side of the light guide plate and the side plate.
2. backlight module as described in claim 1, which is characterized in that be additionally provided with for the anti-of reflection light on the bottom plate
Penetrate film.
3. backlight module as described in claim 1, which is characterized in that set between the top surface of the side plate and the bright enhancement film group
It is equipped with shading glue film.
4. backlight module as claimed in claim 3, which is characterized in that the bright enhancement film group includes lower bright enhancement film and above adds lustre to
Film, the shading glue film are arranged on the upper bright enhancement film.
5. backlight module as claimed in claim 3, which is characterized in that the shading glue film is black and white double faced adhesive tape layer or black pair
Face glue-line.
6. backlight module as described in claim 1, which is characterized in that be vertically arranged with the prism pattern on the light guide plate
One end is light inlet, and the iron frame is provided with the side of the step and the light inlet is located at the same side, and the luminous electricity
Road is set in the gap of the two.
7. a kind of display screen, which is characterized in that include the backlight module as described in any one of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510259942.6A CN104879685B (en) | 2015-05-20 | 2015-05-20 | Backlight module and its display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510259942.6A CN104879685B (en) | 2015-05-20 | 2015-05-20 | Backlight module and its display screen |
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| Publication Number | Publication Date |
|---|---|
| CN104879685A CN104879685A (en) | 2015-09-02 |
| CN104879685B true CN104879685B (en) | 2018-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510259942.6A Active CN104879685B (en) | 2015-05-20 | 2015-05-20 | Backlight module and its display screen |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106816089A (en) * | 2015-11-27 | 2017-06-09 | 扬升照明股份有限公司 | Penetration display module and its driving method |
| CN106773244A (en) | 2016-12-23 | 2017-05-31 | 武汉华星光电技术有限公司 | A kind of display module |
| CN108954053A (en) * | 2017-05-22 | 2018-12-07 | 南昌欧菲显示科技有限公司 | Backlight module, display device and terminal |
| CN108777726A (en) * | 2018-06-29 | 2018-11-09 | 上海摩软通讯技术有限公司 | Complete machine integral type touch-control display module and its installation method, mobile terminal |
| KR20210033696A (en) | 2019-09-19 | 2021-03-29 | 엘지디스플레이 주식회사 | Display device |
| CN113741075A (en) * | 2020-05-30 | 2021-12-03 | 荣耀终端有限公司 | Display screen and electronic equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101169553A (en) * | 2007-11-22 | 2008-04-30 | 深圳市深华龙科技实业有限公司 | Mediate, large size visual region liquid crystal screen backlight product |
| CN103032762A (en) * | 2012-12-04 | 2013-04-10 | 瑞仪光电(苏州)有限公司 | Backlight module and display module |
| CN203217208U (en) * | 2013-04-03 | 2013-09-25 | 合肥宝龙达光电技术有限公司 | Liquid crystal module |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202253209U (en) * | 2011-10-14 | 2012-05-30 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display with same |
| CN205037156U (en) * | 2015-05-20 | 2016-02-17 | 深圳市华锐博光电有限公司 | Backlight unit and display screen thereof |
-
2015
- 2015-05-20 CN CN201510259942.6A patent/CN104879685B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101169553A (en) * | 2007-11-22 | 2008-04-30 | 深圳市深华龙科技实业有限公司 | Mediate, large size visual region liquid crystal screen backlight product |
| CN103032762A (en) * | 2012-12-04 | 2013-04-10 | 瑞仪光电(苏州)有限公司 | Backlight module and display module |
| CN203217208U (en) * | 2013-04-03 | 2013-09-25 | 合肥宝龙达光电技术有限公司 | Liquid crystal module |
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| CN104879685A (en) | 2015-09-02 |
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