CN109188774A - A kind of backlight module and preparation method thereof, display module - Google Patents
A kind of backlight module and preparation method thereof, display module Download PDFInfo
- Publication number
- CN109188774A CN109188774A CN201811287200.4A CN201811287200A CN109188774A CN 109188774 A CN109188774 A CN 109188774A CN 201811287200 A CN201811287200 A CN 201811287200A CN 109188774 A CN109188774 A CN 109188774A
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- Prior art keywords
- light
- backlight module
- metal frame
- frame
- wiring board
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0083—Details of electrical connections of light sources to drivers, circuit boards, or the like
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
- G02B6/009—Positioning aspects of the light source in the package
-
- 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
- G02F1/133603—Direct backlight with LEDs
-
- 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
- G02F1/133602—Direct backlight
- G02F1/133612—Electrical details
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
Abstract
This application discloses a kind of backlight modules, realized in the backlight module orthographic projection of the connection structure that connect with wiring board of luminescence unit on preset direction on metal frame positioned at insulate frame on the preset direction in the orthographic projection in the metal frame, so that the insulation frame separates the metal frame and the connection structure, so that insulation frame is other than having the function of providing bonding plane, also have the function of isolating metal frame and connection structure, enhance the insulation characterisitic between metal frame and connection structure, to reduce the probability of light emitting module and metal frame short circuit, improve the job stability of backlight module.
Description
Technical field
This application involves field of display technology, more specifically to a kind of backlight module and preparation method thereof, display mould
Group.
Background technique
Backlight module is the important composition part of passive luminescence display mould group (such as liquid crystal display die set), for providing light
Source assists passive light-emitting component to be shown.
Backlight module generally includes iron frame, glue frame and the light emitting module being set in iron frame and optical film layer etc. and constitutes,
Wherein, glue frame, light emitting module and optical film layer are set to the same side of iron frame, and glue frame provides bonding plane, to be glued by setting
Optical adhesive layer in junction is realized to be adhesively fixed with the array substrate in display module, and light emitting module is used to provide light source, light
It learns the light source that film layer is used to provide light emitting module and is converted to area source.
It finds in the actual use process, when the temperature of the use environment of backlight module is higher or in use
When generating more electrostatic, the situation that all may cause the light emitting module in backlight module and iron frame short circuit occurs, this meeting is so that hair
Optical module can not work normally, and cause the damage of backlight module.
Summary of the invention
In order to solve the above technical problems, this application provides a kind of backlight modules and preparation method thereof, display module, with reality
The probability for now reducing light emitting module and iron frame short circuit, promotes the job stability of backlight module.
To realize the above-mentioned technical purpose, the embodiment of the present application provides following technical solution:
A kind of backlight module, comprising:
Light emitting module and the encapsulating structure for carrying the light emitting module；
The light emitting module includes at least one light-source structure, and the light-source structure includes wiring board, is set to wiring board
On at least one luminescence unit and the connection luminescence unit and the wiring board connection structure；
The encapsulating structure includes metal frame and insulation frame, and the insulation frame is located at the metal frame towards the luminous mould
Block side, and orthographic projection of the connection structure on preset direction on the metal frame is located at the insulation frame described pre-
On set direction in the orthographic projection on the metal frame so that the insulation frame by the metal frame and the connection structure every
It opens, the preset direction is the opposite direction of the light direction of the backlight module.
A kind of display module, comprising:
Backlight module as described in above-mentioned one；
Display panel positioned at backlight module light direction side.
A kind of preparation method of backlight module, comprising:
Sheet metal is provided, and processing is carried out to the sheet metal and forms metal frame；
Insulation frame is formed on the metal frame surface；
It is described in the insulation frame away from light emitting module of the metal frame side setting including at least one light-source structure
Light-source structure includes wiring board, at least one luminescence unit being set on wiring board and the connection luminescence unit and the line
The connection structure of road plate；And orthographic projection of the connection structure on the metal frame is located at the insulation frame in the metal frame
On orthographic projection in so that the insulation frame separates the metal frame and the connection structure.
It can be seen from the above technical proposal that the embodiment of the present application provides a kind of backlight module and preparation method thereof, aobvious
Show mould group, wherein the connection structure that realization luminescence unit is connect with wiring board in the backlight module is in preset direction in metal
Orthographic projection on frame is located at insulation frame in preset direction in the orthographic projection in the metal frame, so that the insulation frame will be described
Metal frame is separated with the connection structure, so that insulation frame other than having the function of providing bonding plane, also has isolation
The function of metal frame and connection structure enhances the insulation characterisitic between metal frame and connection structure, to reduce luminous mould
The probability of block and metal frame short circuit, improves the job stability of backlight module.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of application for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the partial profile structure of backlight module in the prior art；
Fig. 2 is a kind of partial profile structure for backlight module that one embodiment of the application provides；
Fig. 3 is a kind of partial profile structure for backlight module that another embodiment of the application provides；
Fig. 4 is a kind of overlooking structure diagram for backlight module that one embodiment of the application provides；
Fig. 5 is a kind of overlooking structure diagram for backlight module that another embodiment of the application provides；
Fig. 6 is a kind of partial profile structure for metal frame that one embodiment of the application provides；
Fig. 7 is a kind of overlooking structure diagram for backlight module that another embodiment of the application provides；
Fig. 8 is a kind of partial profile structure for backlight module that another embodiment of the application provides；
Fig. 9 is a kind of partial profile structure for backlight module that the further embodiment of the application provides；
Figure 10 is a kind of the schematic diagram of the section structure for display module that one embodiment of the application provides；
Figure 11 is a kind of overlooking structure diagram for array substrate that one embodiment of the application provides；
Figure 12 is a kind of flow diagram of the preparation method for backlight module that one embodiment of the application provides.
Specific embodiment
As described in background, backlight module in the prior art is higher or using in the temperature of use environment
In the case where generating more electrostatic in journey, the situation for light emitting module and metal frame short circuit easily occur occurs.
As shown in FIG. 1, FIG. 1 is the part section structural representations for the backlight module for using reverse group mode to assemble in the prior art
Figure, the X-axis of the coordinate system XZ in Fig. 1 are parallel to the surface of backlight module, and Z axis is parallel to the light direction of backlight module, instead
Have under the conditions of narrow frame for the backlight module that the backlight module that group mode assembles is assembled compared to positive group of mode preferably
Structural reliability.But still Fig. 1 is referred to, backlight module shown in Fig. 1 is side entrance back module, mainly includes metal frame
10, insulate frame 20, light emitting module and light guide plate 40；Light emitting module includes a wiring board 31, shining in assist side 31 is arranged
The connection knot that diode 33 (LED, Light Emitting Diode) and realization light emitting diode 33 are electrically connected with wiring board 31
Structure 32；When the temperature of the use environment of backlight module is higher, light guide plate 40 can generate the horizontal direction (side X due to expanded by heating
To) expansion thrust, this expansion thrust leads the connection structure 32 for connecting light emitting diode 33 and wiring board 31 to separate
10 direction of metal frame of 40 side of tabula rasa is mobile, may result in connection structure 32 and contacts with metal frame 10 and short-circuit, after short-circuit
The high current of formation can burn light emitting diode 33, and entire backlight module is caused to can not work normally.
In addition, the case where generating more electrostatic in use (such as complete machine ESD (Electro-Static
Discharge, Electro-static Driven Comb) test when) under, electric arc can be transmitted on metal frame 10 from backlight module surface, then from metal
It is transmitted on frame 10 in connection structure 32, this also results in the short circuit problem of light emitting diode 33 Yu metal frame 10.
In view of this, the embodiment of the present application provides a kind of backlight module, realized in the backlight module luminescence unit with
Orthographic projection of the connection structure of wiring board connection on metal frame is located at insulation frame in the orthographic projection in the metal frame, so that
The insulation frame separates the metal frame and the connection structure, so that insulation frame provides the function of bonding plane in addition to having
Can be outer, also have the function of isolating metal frame and connection structure, enhances the insulation characterisitic between metal frame and connection structure, from
And the probability of light emitting module and metal frame short circuit is reduced, improve the job stability of backlight module.
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall in the protection scope of this application.
The embodiment of the present application provides a kind of backlight module, and as shown in Figures 2 and 3, Fig. 2 and Fig. 3 are cuing open for backlight module
Face structural schematic diagram, the backlight module include:
Light emitting module and the encapsulating structure for carrying the light emitting module；
The light emitting module includes at least one light-source structure 300, and the light-source structure 300 includes wiring board 320, setting
In the connection of at least one luminescence unit 310 and the connection luminescence unit 310 and the wiring board 320 on wiring board 320
Structure 330；
The encapsulating structure includes metal frame 100 and insulation frame 200, and the insulation frame 200 is located at 100 court of metal frame
To the light emitting module side, and orthographic projection of the connection structure 330 on preset direction on the metal frame 100 is located at
The insulation frame 200 on the preset direction in the orthographic projection on the metal frame 100 so that the insulation frame 200 will
The metal frame 100 is separated with the connection structure 330, and the preset direction is the negative side of the light direction of the backlight module
To.
The coordinate system established in attached drawing provided by the embodiments of the present application be using the light direction of backlight module as Z axis just
To the right-handed coordinate system of foundation.
Backlight module shown in Fig. 2 is side entrance back module, and side entrance back module refers to the light of light-source structure 300
Incident direction is horizontal direction (being parallel to X-direction), forms emergent ray by light guide plate 400 and (is parallel to Z axis vertically upward
Direction) area source, i.e., as shown in Fig. 2, the light emitting module further include: light guide plate 400；
As shown in Figure 4 and Figure 5, Fig. 4 and Fig. 5 be backlight module shown in Fig. 2 overlooking structure diagram, described at least one
A light-source structure 300 is distributed in at least side of 400 surrounding of light guide plate, and the light direction court of the light-source structure 300
To the light guide plate 400.
As can be seen that each light-source structure may each comprise multiple luminescence units being arranged successively from Fig. 4 and Fig. 5
310, the luminescence unit 310 can be the light-emitting components such as light emitting diode or Organic Light Emitting Diode, each light-source structure 300
All luminescence units 310 can be realized by connection structure 330 and to be electrically connected with wiring board 320, the connection structure
330 can be soldering structure.It should be noted that being closed to clearly show the position of luminescence unit 310 and light guide plate 400
Insulation frame 200 and wiring board 320 are not shown in system, Fig. 4 and Fig. 5.
The backlight module being shown in FIG. 4 includes two light-source structures 300, and the two light-source structures 300 are set to and lead
The opposite sides of 400 surrounding of tabula rasa.The backlight module being shown in FIG. 5 includes a light-source structure 300, this light-source structure
300 are set to any side of 400 surrounding of light guide plate.In the other embodiments of the application, the quantity of the light-source structure 300
It can also be three or four or more, but increasing with 300 quantity of light-source structure may result in the side of backlight module
Frame area increases, and is unfavorable for reducing the frame of backlight module.The application does not limit the particular number of the light-source structure 300
It is fixed, specifically depending on actual conditions.
With reference to Fig. 6, Fig. 6 is the schematic diagram of the section structure of the metal frame 100, and the metal frame 100 includes Support 102
With at least one depressed area 101, the Support 102 is used to support the light guide plate 400, and the depressed area 101 is for being arranged
The light-source structure 300.
Quantity of the quantity of the depressed area 101 generally with light-source structure 300 is consistent.Such as shown in Figure 4
In backlight module, when backlight module includes two light-source structures 300, and the two light-source structures 300 are set to light guide plate 400 4
When the opposite sides in week, the quantity of the depressed area 101 is also required to be two, and is set to opposite the two of 400 surrounding of light guide plate
Side, for the light-source structure 300 to be respectively set.
Backlight module shown in Fig. 3 is down straight aphototropism mode set, and down straight aphototropism mode set refers to the light of light emitting module outgoing
Line incident direction is the backlight module of vertical direction (Z axis is positive), and with reference to Fig. 7, Fig. 7 is the vertical view of backlight module shown in Fig. 3
Structural schematic diagram, in conjunction with Fig. 3 and Fig. 7, the light-source structure 300 be one, and the light-source structure 300 include wiring board 320,
It is set to multiple luminescence units 310 of array arrangement and the multiple luminescence units 310 of connection and the route on wiring board 320
Multiple connection structures 330 of plate 320.
The luminescence unit 310 of array arrangement can be light emitting diode, the exit direction of the light of these light emitting diodes
It the as beam projecting direction of backlight module may be adjacent due to having certain gap between adjacent LED
Occur dark space between light emitting diode, therefore, in the alternative embodiment of the application, referring still to Fig. 3, the backlight mould
Group further include: deviate from the optical diaphragm 500 of 100 side of metal frame positioned at the light-source structure 300.
The optical diaphragm 500 plays the role of spreading the light of light emitting diode outgoing, to improve adjacent light-emitting diodes
The phenomenon that appearance dark space between pipe, form the more uniform area source of brightness.In addition, the optical diaphragm 500 may be used also
With with optical functions such as anti-reflections, the application is to this and without limitation.
In down straight aphototropism mode set, the mode of support optical diaphragm 500 can be divided into two kinds, respectively such as Fig. 8 and Fig. 9 institute
Show, Fig. 8 and Fig. 9 are the schematic diagram of the section structure of backlight module；
In backlight module shown in Fig. 8, the wiring board 320 includes multiple via holes through the wiring board 320
331, the via hole 331 is preset with the connection structure 330 described in projection of the preset direction on the metal plate
Projection on direction on the metal plate does not overlap；
The backlight module further includes multiple support constructions 332, the support construction 332 be located at the metal plate with it is described
Between optical diaphragm 500, and it is arranged through the via hole 331, is used to support the optical diaphragm 500.
Since the via hole 331 exists in projection of the preset direction on the metal plate with the connection structure 330
Orthographic projection on preset direction on the metal plate does not overlap, can be to avoid connection structure 330 to the mutual of support construction 332
Mutually block.
In backlight module shown in Fig. 9, the backlight module further include:
Coated on the light-source structure 300 towards the substratum transparent 600 of 500 side of optical diaphragm.The transparent adhesive tape
Layer 600 bonds together light-source structure 300 and optical diaphragm 500, to realize being adhesively fixed to optical diaphragm 500.
Correspondingly, the embodiment of the present application also provides a kind of display modules, as shown in Figure 10, Figure 10 is the display module
The schematic diagram of the section structure, the display module includes:
Backlight module C100 as described in above-mentioned any embodiment；
Display panel positioned at the backlight module C100 light direction side；
The display panel includes: the color membrane substrates being oppositely arranged and array substrate B100.
The color membrane substrates include colour film substrate A205 and the black matrix" A204 being set in colour film substrate and colored color
Resistance, the colour color blocking includes the first colored color blocking A201, the second colour color blocking A202 and third colour color blocking A203, through this
The light of three classes colour color blocking outgoing is the light of different colours, such as can be red, green and blue respectively.
In order to be illustrated to each device architecture on array substrate B100, with reference to Figure 11, Figure 11 is the array base
The overlooking structure diagram of plate B100, the array substrate B100 include:
Array substrate B104；
Data line B101 and grid line B102 arranged in a crossed manner and mutually insulated on the array substrate B104, and
Display pixel B103 in the data line B101 and grid line B102 limited area；
Thin film transistor (TFT) (the Thin Film being electrically connected with the data line B101 and the grid line B102
Transistor, TFT), the grid G of the thin film transistor (TFT) is electrically connected with the grid line B102, source S and the data line
B101 electrical connection, the drain electrode S of the thin film transistor (TFT) are electrically connected with pixel electrode；
With the grid data line B101 data drive circuit being electrically connected and be electrically connected with the grid line B102
Pole driving circuit.
The gate driving mode being shown in FIG. 11 is unilateral driving method, described in the other embodiments of the application
The gate driving mode of array substrate can in a manner of cross-drive or bilateral driving etc., the application to this and without limitation, tool
Depending on stereoscopic actual conditions.
Correspondingly, the embodiment of the present application also provides a kind of preparation methods of backlight module, as shown in figure 12, comprising:
S101: sheet metal is provided, and processing is carried out to the sheet metal and forms metal frame；
Optionally, the sheet metal is carried out processing to form the technique that metal frame is taken being Sheet Metal Forming Technology.
S102: insulation frame is formed on the metal frame surface；
Optionally, forming the technique of insulation frame on the metal frame surface can be Shooting Technique.In addition, insulating being formed
When frame, the function of bonding plane is provided in addition to have insulation frame, it is also necessary to consider the distribution of the connection structure in light emitting module
Position forms insulation block diagram case, so that the connection structure in the light emitting module being subsequently formed is on preset direction in the metal
Orthographic projection on frame is located at the insulation frame on preset direction in the orthographic projection on the metal frame.
S103: in the insulation frame away from luminous mould of the metal frame side setting including at least one light-source structure
Block, the light-source structure include wiring board, at least one luminescence unit being set on wiring board and the connection luminescence unit
With the connection structure of the wiring board；And orthographic projection of the connection structure on preset direction on the metal frame is located at institute
State insulation frame on preset direction in the orthographic projection on the metal frame so that the insulation frame by the metal frame with it is described
Connection structure separates, and the preset direction is the opposite direction of the light direction of the backlight module.
In conclusion the embodiment of the present application provides a kind of backlight module and preparation method thereof, display module, wherein institute
It states and realizes orthographic projection position of the connection structure that connect with wiring board of luminescence unit in preset direction on metal frame in backlight module
In insulation frame in preset direction in the orthographic projection in the metal frame so that the insulation frame is by the metal frame and the company
Binding structure separates, so that insulation frame other than having the function of providing bonding plane, also has isolating metal frame and connection knot
The function of structure enhances the insulation characterisitic between metal frame and connection structure, to reduce light emitting module and metal frame short circuit
Probability, improve the job stability of backlight module.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments makes professional and technical personnel in the field can be realized or use the application.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the application.Therefore, the application
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (11)
1. a kind of backlight module characterized by comprising
Light emitting module and the encapsulating structure for carrying the light emitting module；
The light emitting module includes at least one light-source structure, and the light-source structure includes wiring board, is set on wiring board
The connection structure of at least one luminescence unit and the connection luminescence unit and the wiring board；
The encapsulating structure includes metal frame and insulation frame, and the insulation frame is located at the metal frame towards the light emitting module one
Side, and orthographic projection of the connection structure on preset direction on the metal frame is located at the insulation frame in the default side
Upwards in the orthographic projection on the metal frame, so that the insulation frame separates the metal frame and the connection structure, institute
State the opposite direction for the light direction that preset direction is the backlight module.
2. backlight module according to claim 1, which is characterized in that the light emitting module further include: light guide plate；
At least one described light-source structure is distributed in at least side of the light guide plate surrounding, and the light side out of the light-source structure
To towards the light guide plate.
3. backlight module according to claim 2, which is characterized in that the quantity of the light-source structure is one or two,
It is distributed in the side or opposite two sides of the light guide plate.
4. backlight module according to claim 3, which is characterized in that the metal frame includes Support and at least one is recessed
Area is fallen into, the Support is used to support the light guide plate, and the depressed area is for being arranged the light-source structure.
5. backlight module according to claim 1, which is characterized in that the light-source structure is one, and the light source knot
Structure include wiring board, be set on the wiring board multiple luminescence units of array arrangement and the multiple luminescence units of connection with
Multiple connection structures of the wiring board.
6. backlight module according to claim 5, which is characterized in that further include: it is located at the light-source structure away from described
The optical diaphragm of metal frame side.
7. backlight module according to claim 6, which is characterized in that the wiring board includes multiple through the wiring board
Via hole, projection of the via hole on the preset direction on the metal plate and the connection structure are in the default side
The projection on the metal plate does not overlap upwards；
The backlight module further includes multiple support constructions, the support construction be located at the metal plate and the optical diaphragm it
Between, and be arranged through the via hole, it is used to support the optical diaphragm.
8. backlight module according to claim 6, which is characterized in that further include:
Coated on the light-source structure towards the substratum transparent of the optical diaphragm side.
9. backlight module according to claim 1-8, which is characterized in that the wiring board is flexible circuit board；
The luminescence unit is light emitting diode；
The connection structure is soldering structure.
10. a kind of display module characterized by comprising
Such as the described in any item backlight modules of claim 1-9；
Display panel positioned at backlight module light direction side.
11. a kind of preparation method of backlight module characterized by comprising
Sheet metal is provided, and processing is carried out to the sheet metal and forms metal frame；
Insulation frame is formed on the metal frame surface；
In the insulation frame away from light emitting module of the metal frame side setting including at least one light-source structure, the light source
Structure includes wiring board, at least one luminescence unit being set on wiring board and the connection luminescence unit and the wiring board
Connection structure；And orthographic projection of the connection structure on preset direction on the metal frame is located at the insulation frame pre-
On set direction in the orthographic projection on the metal frame so that the insulation frame by the metal frame and the connection structure every
It opens, the preset direction is the opposite direction of the light direction of the backlight module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811287200.4A CN109188774A (en) | 2018-10-31 | 2018-10-31 | A kind of backlight module and preparation method thereof, display module |
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| CN201811287200.4A CN109188774A (en) | 2018-10-31 | 2018-10-31 | A kind of backlight module and preparation method thereof, display module |
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| CN109188774A true CN109188774A (en) | 2019-01-11 |
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| CN201811287200.4A Pending CN109188774A (en) | 2018-10-31 | 2018-10-31 | A kind of backlight module and preparation method thereof, display module |
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