CN209433159U - A kind of backlight module and display device - Google Patents
A kind of backlight module and display device Download PDFInfo
- Publication number
- CN209433159U CN209433159U CN201920092071.7U CN201920092071U CN209433159U CN 209433159 U CN209433159 U CN 209433159U CN 201920092071 U CN201920092071 U CN 201920092071U CN 209433159 U CN209433159 U CN 209433159U
- Authority
- CN
- China
- Prior art keywords
- light
- optical fiber
- sub
- emitting component
- backlight module
- 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 utility model embodiment discloses a kind of backlight module, the backlight including light guide plate and positioned at light guide plate side.Backlight includes lamp bar substrate and the first light-emitting component for being arranged on lamp bar substrate, and the first light-emitting component is electrically connected by first line with lamp bar substrate, and the first light-emitting component includes multiple spaced first sub-light sources；It further include the second light-emitting component being arranged on lamp bar substrate, second light-emitting component is electrically connected by the second route with lamp bar substrate, second light-emitting component includes at least one second sub-light source and multiple lightening holes for going out light for the second sub-light source, and multiple lightening holes are located between two adjacent the first sub-light sources.The utility model embodiment also discloses the display device including the backlight module.On the one hand the backlight module can improve bright spot (Hotspot) phenomenon, improving optical effect；On the other hand the brightness switching that can also realize high and low power consumption, improves the function and the market competitiveness of product.
Description
Technical field
The utility model relates to a kind of liquid crystal display processing and manufacturing field more particularly to backlight module and including the back
The display device of optical mode group.
Background technique
Liquid crystal display (Liquid Crystal Display, LCD), due to small in size, thickness is thin, it is light-weight,
Energy consumption is less, operating voltage is low and radiates low advantage, is widely used to all trades and professions.Liquid crystal display includes LCD display
Plate and backlight module.But liquid crystal display panel itself cannot shine, and need by additional light source, so by carrying on the back
Optical mode group provides light source for liquid crystal display panel, and backlight module includes backlight, and the illumination effect of backlight will directly influence
The visual effect of liquid crystal display panel.
In general, backlight module can be divided by side entrance back according to the difference of backlight distributing position in backlight module
Mould group and down straight aphototropism mode set, wherein the light source in side entrance back module is located at the side of liquid crystal display panel, straight-down negative
Light source in backlight module is located at the bottom of liquid crystal display panel.Since side entrance back module has at low cost, size is thin etc.
Advantage and in the field of business be widely used.
Fig. 1 is the structural schematic diagram of the backlight module of the prior art.Referring to Fig. 1, a kind of backlight module 10 ', including lead
Tabula rasa 11 ' and backlight 12 ', the backlight 12 ' are located at the side of liquid crystal display panel (not shown), the backlight 12 '
Including multiple sub-light sources 13 ' being arranged in a linear.Wherein, the sub-light source 13 ' is using LED (Light Emitting Diode, hair
Optical diode) when, due to the limitation of the self-conditions such as LED light emitting angle (generally 120 °), the light that two adjacent LEDs are emitted
Line can generate 14 ' phenomenon of bright spot (Hotspot) on light guide plate 11 ' and form dark space, to influence image quality.
In the prior art, can by increase the distance between LED light-emitting surface and light guide plate or increase LED number come
Solve the problems, such as bright spot (Hotspot).But if increase the distance between LED light-emitting surface and light guide plate 1, although can weaken
It even is eliminated Hotspot phenomenon, but such that the efficiency of light energy utilization of LED reduces；In addition, if increasing the number of LED,
The power consumption that will lead to backlight module increases.
In view of this, present utility model application people for the prior art backlight module do not attain improve caused by it is many lack
It loses and inconvenient, and deeply conceives, and actively research improvement has a fling at and develops and design this creation.
Utility model content
The purpose of this utility model is that disclosing a kind of backlight module and display device, the utility model are intended to provide one kind
The backlight module of bright spot (Hotspot) phenomenon and the switching of high and low power consumption can be improved, it is in the prior art to solve
The problems such as insufficient.
In order to solve the above-mentioned technical problem, the solution of the utility model is: disclosing a kind of backlight module, including leads
Tabula rasa and backlight positioned at the light guide plate side, the backlight include lamp bar substrate and be arranged on the lamp bar substrate first
Light-emitting component, first light-emitting component are electrically connected by first line with the lamp bar substrate, which includes multiple
Spaced first sub-light source, wherein the backlight further includes the second light-emitting component being arranged on the lamp bar substrate, this
Two light emitting is electrically connected by the second route with the lamp bar substrate, which includes at least one second sub-light source
With multiple lightening holes for going out light for second sub-light source, multiple lightening holes be located at adjacent two first sub-light source it
Between.
Preferably, which further includes spherical mirror and optical fiber item, and the inner surface of the spherical mirror is reflecting surface, should
Optical fiber item crosses on the lamp bar substrate, and multiple lightening holes are arranged on the side wall of the optical fiber item, the spherical mirror by this second
The light inlet of sub-light source and the optical fiber item covers, and second sub-light source is made to go out light from the lightening hole of the optical fiber item.
Preferably, second light-emitting component include two optical fiber items, two optical fiber items respectively with this first shine member
Part is arranged in parallel.
Preferably, which includes the optical fiber item, and the optical fiber item is along the center of first light-emitting component
Line setting.
Preferably, the one end of the lamp bar substrate is equipped with bending part, which includes being located at the bending part
Second sub-light source and the spherical mirror, one end of the optical fiber item are light inlet, and the spherical mirror is by second sub-light source and the optical fiber
The light inlet of item covers, and second sub-light source is made to go out light from the lightening hole of the optical fiber item.
Preferably, the both ends of the lamp bar substrate are equipped with bending part, which includes being located at the folding
Second sub-light source and the spherical mirror of turn of bilge, the both ends of the optical fiber item are light inlet, and the spherical mirror at both ends is respectively by two
Second sub-light source at end and the light inlet of the optical fiber item cover, and go out second sub-light source from the lightening hole of the optical fiber item
Light.
Preferably, the lightening hole of the optical fiber item is V shaped hole.
Preferably, the direction of propagation along second sub-light source in the optical fiber item, the opening area of the lightening hole is gradually
Increase.
Preferably, it is provided with optical fiber duct on the lamp bar substrate, which is fixed in the optical fiber duct by adhesive tape.
A kind of display device is also disclosed, including backlight module as described above and above the backlight module
Liquid crystal display panel.
The specifically disclosed backlight module of the utility model embodiment and display device, by the way that the first light-emitting component is respectively set
It with the second light-emitting component, and individually controls, it is existing on the one hand can to improve the bright spot (Hotspot) occurred in backlight module
As improving optical effect；On the other hand the brightness switching that can also realize the high and low power consumption of backlight module, improves product
Function and the market competitiveness.
Detailed description of the invention
By referring to the drawings to the description of the utility model embodiment, above-mentioned and other mesh of the utility model
, feature and advantage will be apparent from, in the accompanying drawings:
Fig. 1 is the structural schematic diagram of backlight module in the prior art；
Fig. 2 is the diagrammatic cross-section of backlight module disclosed in the utility model embodiment one；
Fig. 3 is the partial structural diagram of backlight module disclosed in the utility model embodiment one；
Fig. 4 is the partial structural diagram of backlight module disclosed in the utility model embodiment two；
In figure: 10 ', 10: backlight module；11 ', 120: light guide plate；12 ', 200,200 ': backlight；13 ': sub-light source；
14 ': bright spot；100: backboard；101: bottom plate；102: side plate；110: reflector plate；130: optical diaphragm group；210: lamp bar substrate；
211: optical fiber duct；212: bending part；220: the first light-emitting components；221: the first sub-light sources；230: the second light-emitting components；231: the
Two sub-light sources；232: spherical mirror；233: optical fiber item；234: lightening hole.
Specific embodiment
In order to which the technical solution of the utility model is explained further, below in conjunction with attached in the utility model embodiment
Figure, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described embodiment is only
It is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, this field is general
Logical technical staff every other embodiment obtained without making creative work belongs to the utility model guarantor
The range of shield.
Embodiment one:
Fig. 2 is the diagrammatic cross-section of backlight module disclosed in the utility model embodiment one；Fig. 3 is that the utility model is implemented
The partial structural diagram of backlight module disclosed in example one.
In conjunction with shown in Fig. 2 to Fig. 3: present embodiment discloses a kind of backlight modules, including backboard 100, successively stack it is anti-
Piece 110, light guide plate 120 and optical diaphragm group 130 are penetrated, wherein the backboard 100 includes bottom plate 101 and the side plate being connected with the bottom plate
102, which further includes the backlight 200 on the side plate 102, which enters light with the light guide plate 120
Side is oppositely arranged, which includes lamp bar substrate 210 and the first light-emitting component being arranged on the lamp bar substrate 210
220, which is electrically connected by first line (not shown) with the lamp bar substrate 210, this is first luminous
Element 220 includes multiple spaced first sub-light sources 221, wherein the backlight 200 further includes being arranged in the lamp bar substrate
The second light-emitting component 230 on 210, second light-emitting component 230 pass through the second route (not shown) and the lamp bar substrate
210 electrical connections, second light-emitting component 230 include second sub-light source 231 and multiple go out light for second sub-light source 231
Lightening hole 234, multiple lightening holes 234 are located between first sub-light source 221 of adjacent two.
In the present embodiment, first sub-light source 221 and second sub-light source 231 can use LED (Light
Emitting Diode, light emitting diode).
Specifically, which further includes spherical mirror 232 and optical fiber item 233, the interior table of the spherical mirror 232
Face is reflecting surface, which crosses on the lamp bar substrate 210, and multiple lightening holes 234 are arranged in the optical fiber item 233
Side wall on, which covers the light inlet of second sub-light source 231 and the optical fiber item 233, makes second sub-light source
231 go out light from the lightening hole 234 of the optical fiber item 233.
Optical fiber item in the present embodiment is silica fibre, and the cross section of the optical fiber item is circle.In addition, above-mentioned optical fiber item
It can also be multicomponent glass optical fiber, plastic optical fiber, composite material fiber, infra-red material optical fiber etc.；The cross section of the optical fiber item
It can also be polygon, such as: square, pentagon etc.；This is not restricted.
In the present embodiment, the one end of the lamp bar substrate 210 is equipped with bending part 212, which includes position
In second sub-light source 231 and the spherical mirror 232 of the bending part 212.Second light-emitting component 230 includes two optical fiber items
233, two optical fiber items 233 are arranged in parallel with first light-emitting component 210 respectively.Specifically, it is arranged on the lamp bar substrate 210
There is the optical fiber duct 211 for accommodating the optical fiber item 233, which can also be fixed on the light by adhesive tape (not shown)
In fine slot 211.In addition, one end of the optical fiber item 233 is light inlet, which, which does optical fiber item and pass around path, makes this
The light inlet of optical fiber item 233 is located inside the spherical mirror 232, and the spherical mirror 232 is by second sub-light source 231 and the optical fiber item
233 light inlet covers, and second sub-light source 231 is made to go out light from the lightening hole 234 of the optical fiber item 233.
In the present embodiment, the lightening hole 234 of the optical fiber item 233 is V shaped hole, and the orientation angle projected need to be towards the leaded light
Plate 120,234 bottom right of lightening hole positioned at the optical fiber item 233 of 221 upside of the first sub-light source are injected the light guide plate 120, are located at
The optical fiber item 233 of first sub-light source, 221 downside injects the light guide plate 120 to upper right, specifically, can be by adjusting the optical fiber
The position of item 233 guarantees that the light projected can reach the light guide plate 120.
In the present embodiment, since second sub-light source 231 of second light-emitting component 230 is located at the lamp bar substrate 210
One end, in order to not influence far from the end the lightening hole 234 light emission luminance, the present embodiment is along second sub-light
The direction of propagation of the source 231 in the optical fiber item 233, the opening area of the lightening hole 234 are gradually increased.
The backlight of backlight module disclosed in the present embodiment includes the first light-emitting component and the second light-emitting component.Wherein,
First light-emitting component includes multiple spaced first sub-light sources, when the first light-emitting component normal operating conditions, because this
Under the Pitch fixing situation of one sub-light source, the phenomenon that bright spot (Hotspot), is not avoided that, by increasing the second light-emitting component；
Second light-emitting component includes the optical fiber item parallel with the first sub-light source positioned at the second sub-light source of lamp bar base ends, the optical fiber item
Including multiple lightening holes between multiple first sub-light sources, and the entering the second sub-light source and the optical fiber item by spherical mirror
Mask is lived.On the one hand, backlight module disclosed in the present embodiment is opened by being improved optical effect using the second light-emitting component
Second sub-light source enters the entrance of optical fiber item by the reflected light of spherical mirror, and the light in optical fiber item passes through to be projected in lightening hole,
And the orientation angle projected need to be towards light guide plate, light guide plate is injected in optical fiber bottom right on the upside of the first sub-light source, is located at the
Optical fiber on the downside of one sub-light source, which is worked together, injects light guide plate to upper right, and the light for projecting optical fiber item can reach light guide plate, open simultaneously
Open the first light-emitting component and the second light-emitting component, so that it may the phenomenon that improving bright spot (Hotspot).On the other hand, when closing first
The work under dim light may be implemented when opening the second light-emitting component in light-emitting component, to achieve the effect that realize low-power consumption.
In addition, in other embodiments, can also be equipped with bending part at the both ends of the lamp bar substrate, this second shines
Element includes two the second sub-light sources and two spherical mirrors, and second sub-light source and the spherical mirror are located at the lamp bar substrate two
The bending part of end, the both ends of the optical fiber item are light inlet, and the spherical mirror at both ends is respectively by second sub-light source at both ends
It is covered with the light inlet of the optical fiber item, second sub-light source is made to go out light from the lightening hole of the optical fiber item.In this way, can allow
Second sub-light source for being located at the lamp bar substrate both ends goes out light from the lightening hole of the optical fiber item simultaneously, can be further
Improve bright spot (Hotspot) phenomenon occurred in backlight module, improving optical effect.In addition, the both ends of lamp bar substrate are arranged in
The bending part in portion can also realize the effect of limit light guide plate.
Embodiment two:
Fig. 4 is the partial structural diagram of backlight module disclosed in the utility model embodiment two.
As shown in figure 4, the structure of backlight module disclosed in the structure of the backlight module of the present embodiment and embodiment one is substantially
Identical, difference is, the backlight 200 ' of the backlight module of the present embodiment includes the second light-emitting component 230 ', the second luminous member
Part 230 ' includes the optical fiber item 233 ', which is arranged along the center line of first light-emitting component 220.This second
Light-emitting component 230 ' further includes the second sub-light source 231 ' and spherical mirror 232 ', and the inner surface of spherical mirror 232 ' is reflecting surface, optical fiber
The side wall of item 233 ' is provided with multiple lightening holes 234 ', and spherical mirror 232 ' enters light for the second sub-light source 231 ' and optical fiber item 233 '
Mask is lived, and the second sub-light source 231 ' is made to go out light from the lightening hole 234 ' of optical fiber item.
In the present embodiment, the orientation angle that the lightening hole 234 ' of the optical fiber item 233 ' projects is directly toward the light guide plate 120,
Without special setting.
The other parts of the present embodiment are roughly the same with embodiment one, and details are not described herein.
Equally, in other embodiments, bending part can also be equipped at the both ends of the lamp bar substrate, this second shine
Element includes two the second sub-light sources and two spherical mirrors, and second sub-light source and the spherical mirror are located at the lamp bar substrate two
The bending part of end, the both ends of the optical fiber item are light inlet, and the spherical mirror at both ends is respectively by second sub-light source at both ends
It is covered with the light inlet of the optical fiber item, second sub-light source is made to go out light from the lightening hole of the optical fiber item.In this way, can allow
Second sub-light source for being located at the lamp bar substrate both ends goes out light from the lightening hole of the optical fiber item simultaneously, can be further
Improve bright spot (Hotspot) phenomenon occurred in backlight module, improving optical effect.In addition, the both ends of lamp bar substrate are arranged in
The bending part in portion can also realize the effect of limit light guide plate.
3rd embodiment
The present embodiment also discloses a kind of display device, including backlight module as described above and is located at the backlight module
The liquid crystal display panel of top.
Liquid crystal display panel disclosed in the present embodiment includes backlight module as described above, is shone by being respectively set first
Element and the second light-emitting component, and individually control, it on the one hand can improve the bright spot (Hotspot) occurred in backlight module
Phenomenon, improving optical effect；On the other hand the brightness switching that can also realize the high and low power consumption of backlight module, improves product
Function and the market competitiveness.
The full content of the utility model above, in the present specification, the terms "include", "comprise" or its it is any its
He is intended to non-exclusive inclusion by variant, in addition to comprising those of listed element, but also may include being not explicitly listed
Other element.
In the present specification, the nouns of locality such as related front, rear, top, and bottom be located in figure with components in attached drawing and
Components mutual positions defines, only for the purpose of expressing the technical solution clearly and conveniently.It should be appreciated that the side
The use of position word should not limit the claimed range of the application.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel principle, any modification, equivalent replacement, improvement and so on should be included in the protection scope of the utility model
Within.
Claims (10)
1. a kind of backlight module, the backlight including light guide plate and positioned at the light guide plate side, the backlight includes lamp bar
Substrate and the first light-emitting component being arranged on the lamp bar substrate, first light-emitting component pass through first line and the lamp
The electrical connection of substrate, first light-emitting component includes multiple spaced first sub-light sources, which is characterized in that the backlight
Source further includes the second light-emitting component being arranged on the lamp bar substrate, second light-emitting component by the second route with it is described
The electrical connection of lamp bar substrate, second light-emitting component include that at least one second sub-light source and multiple confessions second sub-light source go out
The lightening hole of light, multiple lightening holes are located between first sub-light source of adjacent two.
2. a kind of backlight module as described in claim 1, which is characterized in that second light-emitting component further include spherical mirror and
The inner surface of optical fiber item, the spherical mirror is reflecting surface, and the optical fiber item crosses on the lamp bar substrate, multiple described luminous
Hole is arranged on the side wall of the optical fiber item, and the spherical mirror is by the light inlet cover of second sub-light source and the optical fiber item
Firmly, second sub-light source is made to go out light from the lightening hole of the optical fiber item.
3. a kind of backlight module as claimed in claim 2, which is characterized in that second light-emitting component includes two light
Fine item, two optical fiber items are arranged in parallel with first light-emitting component respectively.
4. a kind of backlight module as claimed in claim 2, which is characterized in that second light-emitting component includes the light
Fine item, the optical fiber item are arranged along the center line of first light-emitting component.
5. a kind of backlight module as described in claim 3 or 4, which is characterized in that the one end of the lamp bar substrate is equipped with folding
Turn of bilge, second light-emitting component include second sub-light source and the spherical mirror positioned at the bending part, the optical fiber
One end of item is light inlet.
6. a kind of backlight module as described in claim 3 or 4, which is characterized in that the both ends of the lamp bar substrate are equipped with
Bending part, second light-emitting component include second sub-light source and the spherical mirror for being located at the bending part, institute
The both ends for stating optical fiber item are light inlet, and the spherical mirror at both ends is respectively by second sub-light source at both ends and the optical fiber
The light inlet of item covers, and second sub-light source is made to go out light from the lightening hole of the optical fiber item.
7. a kind of backlight module as claimed in claim 2, which is characterized in that the lightening hole of the optical fiber item is V shaped hole.
8. a kind of backlight module as claimed in claim 2, which is characterized in that along second sub-light source in the optical fiber item
In the direction of propagation, the opening area of the lightening hole is gradually increased.
9. a kind of backlight module as claimed in claim 2, which is characterized in that be provided with optical fiber duct on the lamp bar substrate, institute
Optical fiber item is stated to be fixed in the optical fiber duct by adhesive tape.
10. a kind of display device, which is characterized in that including backlight module as in one of claimed in any of claims 1 to 9 and
Liquid crystal display panel above the backlight module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920092071.7U CN209433159U (en) | 2019-01-21 | 2019-01-21 | A kind of backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920092071.7U CN209433159U (en) | 2019-01-21 | 2019-01-21 | A kind of backlight module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209433159U true CN209433159U (en) | 2019-09-24 |
Family
ID=67976980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920092071.7U Active CN209433159U (en) | 2019-01-21 | 2019-01-21 | A kind of backlight module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209433159U (en) |
-
2019
- 2019-01-21 CN CN201920092071.7U patent/CN209433159U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7560745B2 (en) | LED package and backlight assembly for LCD comprising the same | |
| US8459860B2 (en) | Light flux controlling member, light-emitting device and lighting device | |
| CN102884365A (en) | Backlight device and liquid-crystal display device | |
| US20130208467A1 (en) | Light unit and illumination system using the same | |
| US20140003033A1 (en) | Optical Lens and Backlight Module Incorporating the Same | |
| US10152904B2 (en) | LED strip light for shelf signboards | |
| US20040095741A1 (en) | Side-illuminated advertisement board | |
| WO2019157847A1 (en) | Total reflection display device and plastic frame assembly | |
| CN102981206A (en) | Light guide plate and backlight module | |
| CN102893075A (en) | Backlight device and liquid crystal display device | |
| US8425093B2 (en) | Lighting device | |
| US9222646B2 (en) | Luminous flux control member, light emitting apparatus, and illuminating apparatus | |
| US10107476B2 (en) | Luminous flux control member, light emitting device, and display device | |
| JP5764407B2 (en) | Luminous flux control member, light emitting device, and surface light source device | |
| US20120075556A1 (en) | Locally controllable backlight | |
| EP2560042A1 (en) | Backlight unit and lighting system including the same | |
| CN205316182U (en) | LED lamp | |
| US20130272025A1 (en) | Lighting device and cove lighting module using the same | |
| CN209433159U (en) | A kind of backlight module and display device | |
| CN202065739U (en) | LED (Light-Emitting Diode) panel lamp | |
| JP2013246956A (en) | Lighting unit, and desk system with illumination | |
| CN101644860A (en) | Direct backlight module | |
| CN102859264A (en) | Backlight device and liquid crystal display device | |
| TWM456392U (en) | Solar energy luminous brick wall | |
| CN208794184U (en) | Automobile instrument panel back lighting lamp box structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215301 No. 1, Longteng Road, Kunshan Development Zone, Suzhou, Jiangsu Patentee after: Kunshan Longteng Au Optronics Co Address before: 215301 No. 1, Longteng Road, Kunshan Development Zone, Suzhou, Jiangsu Patentee before: Infovision Optoelectronics (Kunshan) Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |