CN108983492A - Side entrance back module and liquid crystal display device - Google Patents
Side entrance back module and liquid crystal display device Download PDFInfo
- Publication number
- CN108983492A CN108983492A CN201810826917.5A CN201810826917A CN108983492A CN 108983492 A CN108983492 A CN 108983492A CN 201810826917 A CN201810826917 A CN 201810826917A CN 108983492 A CN108983492 A CN 108983492A
- Authority
- CN
- China
- Prior art keywords
- led chip
- entrance back
- back module
- guide plate
- side entrance
- 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.)
- Pending
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133608—Direct backlight including particular frames or supporting means
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a kind of side entrance back modules, light source assembly including light guide plate and positioned at the light guide plate side, the light source assembly includes pcb board and multiple LED chips for being connected on the pcb board, finite place piece is respectively set in the side of each LED chip, the top of the locating part is raised in the light-emitting surface of the LED chip and conflict is connected to the incidence surface of the light guide plate, to limit the coupling electrical distance between the light-emitting surface of the LED chip and the incidence surface of the light guide plate.The invention also discloses the liquid crystal display devices comprising side entrance back module as described above.The present invention may be implemented highdensity light source and can effectively limit the coupling electrical distance between light source light-emitting surface and the incidence surface of light guide plate.
Description
Technical field
The present invention relates to technical field of liquid crystal display, and in particular to a kind of side entrance back module and liquid crystal display dress
It sets.
Background technique
Liquid crystal display device (Liquid Crystal Display, LCD) is the display equipment of planar ultra-thin, it is by one
The colour or monochrome pixels of fixed number amount form, and are placed in front of light source or reflecting surface.Liquid crystal display device power consumption is very low, and
Have the characteristics that high image quality, small in size, light-weight, therefore favored by everybody, becomes the mainstream of display.On existing market
Liquid crystal display device is largely backlight liquid crystal display device, including liquid crystal display panel and backlight module, LCD display
Plate is oppositely arranged with backlight module, and backlight module provides display light source to liquid crystal display panel, so that liquid crystal display panel is shown
Image.
Liquid crystal display panel is usually made of thin-film transistor array base-plate, colored optical filtering substrates and liquid crystal layer.Colour filter
It include red color resistance, green color blocking and blue color blocking in photopolymer substrate, effect is will to be filtered into not by the white light of liquid crystal layer
With the light beam of color, the light beam of variant color converges again and forms image frame.Backlight module is mainly used for generating white
Light source is supplied to liquid crystal display panel.The backlight of traditional liquid crystal display uses cold-cathode fluorescence lamp (CCFL), but due to
That there are color restoration capabilitys is poor for CCFL backlight, luminous efficiency is low, flash-over characteristic is poor under discharge voltage high and low temperature, heating reaches
To stablize the gray scale time it is long the disadvantages of, the back light source technique using LED backlight has currently been developed, wherein the most universal
It is LED side-edge type backlight, LED light source is arranged in the side of light guide plate.
For side entering-type LED backlight, since LED shines for Lambertian, the light-emitting line of LED chip has a definite divergence
Angle, it is therefore desirable to the incidence surface of the light-emitting surface of LED chip and light guide plate is limited in suitable distance, reduce the damage of light
It loses.In large-sized liquid crystal display device, more powerful backlight is needed, a kind of method is to increase to be arranged on pcb board
LED chip quantity, form highdensity light source, the spacing very little between two adjacent LEDs chip.At this point, how effectively
Ground limits the coupling electrical distance between the light-emitting surface of LED chip and the incidence surface of light guide plate and ensures each LED chip coupling electrical distance
Uniformity and stability be problem to be solved.
Summary of the invention
In view of this, the present invention provides in a kind of side entrance back module, highdensity light source may be implemented and can
Effectively to limit the coupling electrical distance between light source light-emitting surface and the incidence surface of light guide plate.
To achieve the above object, present invention employs the following technical solutions:
A kind of side entrance back module, the light source assembly including light guide plate and positioned at the light guide plate side, the light source
Component includes pcb board and multiple LED chips for being connected on the pcb board, wherein is distinguished the side of each LED chip
Finite place piece is set, and the top of the locating part is raised in the light-emitting surface of the LED chip and conflict is connected to the light guide plate
Incidence surface, to limit the coupling electrical distance between the light-emitting surface of the LED chip and the incidence surface of the light guide plate.
Specifically, there is notch, the bottom of the locating part close to one end of the pcb board on the side wall of the LED chip
End is connected on the pcb board and extends in the notch
Specifically, the LED chip is mutually fitted closely with the locating part.
Specifically, the longitudinal profile of the LED chip has the shape of T shape, and the longitudinal profile of the locating part has L shape
Shape.
Specifically, the top of the locating part be raised in the light-emitting surface of the LED chip height be 0.05mm~
0.1mm。
Specifically, the spacing of two locating parts of two adjacent LEDs chip is corresponded respectively to no more than 0.2mm.
Specifically, the multiple LED chip direction parallel arranged along a straight line on the pcb board.
Specifically, the side entrance back module further includes backboard, reflector plate and optical diaphragm group, the reflector plate setting
In on the backboard, the light guide plate is set on the reflector plate, and the optical diaphragm group is set on the light guide plate, institute
Light source assembly is stated to be located at the light guide plate side and be connected on the backboard.
Side entrance back module provided in an embodiment of the present invention, wherein locating part and pcb board for limiting coupling electrical distance
With biggish connection area, sufficiently large support force can be provided, can steadily limit coupling electrical distance.And at the top of locating part
Thickness it is again smaller, the space occupied is small, and LED chip arrangement can be made even closer, can connect on same pcb board more
The LED chip of quantity realizes highdensity back light.In addition, the side of each LED chip is provided with locating part, again
The coupling electrical distance of each LED chip can be made to obtain more balancedly keeping.
Detailed description of the invention
Fig. 1 is the schematic top plan view of side entrance back module provided in an embodiment of the present invention；
Fig. 2 is as shown in figure 1 along the schematic diagram of the section structure of X-X line；
Fig. 3 is the enlarged diagram of part A as shown in figure 1；
Fig. 4 is the enlarged diagram of part B as shown in figure 1
Fig. 5 is the structural schematic diagram of liquid crystal display device provided in an embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, with reference to the accompanying drawing to specific reality of the invention
The mode of applying is described in detail.The example of these preferred embodiments is illustrated in the accompanying drawings.Shown in attached drawing and according to
The embodiments of the present invention of attached drawing description are only exemplary, and the present invention is not limited to these embodiments.
Here, it should also be noted that, in order to avoid having obscured the present invention because of unnecessary details, in the accompanying drawings only
Show with closely related structure and/or processing step according to the solution of the present invention, and be omitted little with relationship of the present invention
Other details.
The present embodiment provides firstly a kind of side entrance back module, as depicted in figs. 1 and 2, the side entrance back mould
Group 100 includes backboard 10, reflector plate 20, light guide plate 30, optical diaphragm group 40 and light source assembly 50.
Wherein, the reflector plate 20, light guide plate 30 and optical diaphragm group 40 are successively set on the backboard 10, described
The side on the backboard 10 and being located at the light guide plate 30 is arranged in light source assembly 50.The light that the light source assembly 50 issues
Line passes through the conduction of the light guide plate 30, is incident on after the back side of the light guide plate 30 is by the reflector plate 20 reflection described
Then optical diaphragm group 40 is launched from the upper surface of the optical diaphragm group 40 again, normally, the optical diaphragm group 40 is wrapped
Include prismatic lens and anti-reflection film etc..
Wherein, refering to fig. 1, the light source assembly 50 includes pcb board 51 and the multiple LED being connected on the pcb board 51
Chip 52, multiple LED chips 52 direction parallel arranged along a straight line on the pcb board 51, each described LED chip
Finite place piece 53 is respectively set in 52 side.Specifically, the bottom end (close to one end of the pcb board 51) of the locating part 53 connects
It connects on the pcb board 51, the top (away from one end of the pcb board 51) of the locating part 53 is raised in the LED chip
52 light-emitting surface and conflict are connected to the incidence surface of the light guide plate 30, with limit the light-emitting surface of the LED chip 52 with it is described
Coupling electrical distance between the incidence surface of light guide plate 30.
In the present embodiment, as shown in Figure 3 and Figure 4, close to the one of the pcb board 51 on the side wall of the LED chip 52
End has notch 52a, and the bottom end of the locating part 53 is connected on the pcb board 51 and extends in the notch 52a.
Specifically, as shown in figure 3, the LED chip 52 is mutually fitted closely with the locating part 53, the locating part 53
Around the LED chip 52 is fitted in, the protection LED chip 52 can be played the role of.In the present embodiment, the LED core
The longitudinal profile of piece 52 has the shape of T shape, and the width of light-emitting surface position is greater than the width with 51 link position of pcb board
Degree；The longitudinal profile of the locating part 53 has L-shaped shape, and the width with 51 link position of pcb board is greater than its top
The width in portion.So that between the locating part 53 and the pcb board 51 have biggish connection area, while occupy again compared with
Small space (space corresponding to 52 position of LED chip) can connect greater number of LED chip 52 on same pcb board.
Light source assembly 50 based on the above structure, locating part 53 therein can not only provide biggish support force with stabilization
Ground limits coupling electrical distance, and it occupies little space, so that the arrangement of LED chip 52 is even closer, realizes highdensity backlight
Light source.In addition, the side of each LED chip 52 is provided with locating part 53, and the coupling light of each LED chip 52 can be made
Distance obtains more balancedly keeping.
Wherein, as shown in figure 3, the height H that the top of the locating part 53 is raised in the light-emitting surface of the LED chip 52 is needed
It to be set according to actually required coupling electrical distance, height H is usually set in the range of 0.05mm~0.1mm.
Wherein, as shown in figure 4, the space D for corresponding respectively to two locating parts 53 of two adjacent LEDs chip 52 is limited to
No more than 0.2mm, preferably two locating parts 53 be can be closely adhered to, i.e., space D is 0mm.
The another aspect of the present embodiment is to provide a kind of liquid crystal display device, as shown in figure 5, the liquid crystal display device packet
Side entrance back module 100 as described above and liquid crystal display panel 200 are included, the liquid crystal display panel 200 enters with the side
Formula backlight module 100 is oppositely arranged, and the side entrance back module 100 provides display light source to the liquid crystal display panel 200,
So that the liquid crystal display panel 200 shows image.Wherein, liquid crystal display panel 200 includes the array substrate 201 being oppositely arranged
It further include the liquid crystal layer 203 between array substrate 201 and optical filtering substrate 202 with optical filtering substrate 202.
In conclusion side entrance back module provided in an embodiment of the present invention, highdensity light source may be implemented and can
Effectively to limit the coupling electrical distance between light source light-emitting surface and the incidence surface of light guide plate, be conducive to as large-sized liquid crystal display
Device provides powerful backlight.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above is only the specific embodiment of the application, it is noted that for the ordinary skill people of the art
For member, under the premise of not departing from the application principle, several improvements and modifications can also be made, these improvements and modifications are also answered
It is considered as the protection scope of the application.
Claims (9)
1. a kind of side entrance back module, the light source assembly including light guide plate and positioned at the light guide plate side, the light source group
Part includes pcb board and multiple LED chips for being connected on the pcb board, which is characterized in that the side of each LED chip
Finite place piece is respectively set, the top of the locating part is raised in the light-emitting surface of the LED chip and conflict is connected to described lead
The incidence surface of tabula rasa, to limit the coupling electrical distance between the light-emitting surface of the LED chip and the incidence surface of the light guide plate.
2. side entrance back module according to claim 1, which is characterized in that close to institute on the side wall of the LED chip
The one end for stating pcb board has notch, and the bottom end of the locating part is connected on the pcb board and extends in the notch.
3. side entrance back module according to claim 2, which is characterized in that the LED chip and the locating part phase
Mutually fit closely.
4. side entrance back module according to claim 2, which is characterized in that the longitudinal profile of the LED chip has T
The longitudinal profile of the shape of shape, the locating part has L-shaped shape.
5. side entrance back module according to claim 2, which is characterized in that the top of the locating part is raised in described
The height of the light-emitting surface of LED chip is 0.05mm~0.1mm.
6. side entrance back module according to claim 2, which is characterized in that correspond respectively to two adjacent LEDs chip
Two locating parts spacing be not more than 0.2mm.
7. side entrance back module according to claim 6, which is characterized in that the multiple LED chip is in the pcb board
On direction parallel arranged along a straight line.
8. -7 any side entrance back module according to claim 1, which is characterized in that the side entrance back module is also
Including backboard, reflector plate and optical diaphragm group, the reflector plate is set on the backboard, and the light guide plate is set to described anti-
On piece is penetrated, the optical diaphragm group is set on the light guide plate, and the light source assembly is located at the light guide plate side and connects
Onto the backboard.
9. a kind of liquid crystal display device, which is characterized in that including liquid crystal display panel and side a method as claimed in any one of claims 1-8
Enter formula backlight module, the liquid crystal display panel and the side entrance back module are oppositely arranged, the side entrance back module
Display light source is provided to the liquid crystal display panel, so that the liquid crystal display panel shows picture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810826917.5A CN108983492A (en) | 2018-07-25 | 2018-07-25 | Side entrance back module and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810826917.5A CN108983492A (en) | 2018-07-25 | 2018-07-25 | Side entrance back module and liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108983492A true CN108983492A (en) | 2018-12-11 |
Family
ID=64551132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810826917.5A Pending CN108983492A (en) | 2018-07-25 | 2018-07-25 | Side entrance back module and liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108983492A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022036646A1 (en) * | 2020-08-20 | 2022-02-24 | 重庆康佳光电技术研究院有限公司 | Display panel and display device containing same |
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| CN103017011A (en) * | 2011-09-20 | 2013-04-03 | 丰田合成株式会社 | Linear light source device and planar light source device |
| CN104214608A (en) * | 2014-09-09 | 2014-12-17 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display |
| CN104244583A (en) * | 2013-06-24 | 2014-12-24 | Lg伊诺特有限公司 | Circuit board and lighting device having the circuit board |
| CN105090800A (en) * | 2015-08-11 | 2015-11-25 | 京东方科技集团股份有限公司 | LED luminescent device, LED light bar, backlight module and display device |
| CN205716741U (en) * | 2016-06-20 | 2016-11-23 | 创维液晶器件(深圳)有限公司 | Spacing pad and side incident type display device |
| CN108287437A (en) * | 2018-01-31 | 2018-07-17 | 广东欧珀移动通信有限公司 | A kind of backlight module and electronic device |
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2018
- 2018-07-25 CN CN201810826917.5A patent/CN108983492A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374451A (en) * | 2010-08-13 | 2012-03-14 | 苏州璨宇光学有限公司 | Surface light source device and display using same |
| CN103017011A (en) * | 2011-09-20 | 2013-04-03 | 丰田合成株式会社 | Linear light source device and planar light source device |
| CN104244583A (en) * | 2013-06-24 | 2014-12-24 | Lg伊诺特有限公司 | Circuit board and lighting device having the circuit board |
| CN104214608A (en) * | 2014-09-09 | 2014-12-17 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display |
| CN105090800A (en) * | 2015-08-11 | 2015-11-25 | 京东方科技集团股份有限公司 | LED luminescent device, LED light bar, backlight module and display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022036646A1 (en) * | 2020-08-20 | 2022-02-24 | 重庆康佳光电技术研究院有限公司 | Display panel and display device containing same |
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| PB01 | Publication | ||
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Application publication date: 20181211 |