CN206892503U - Backlight module, display device - Google Patents
Backlight module, display device Download PDFInfo
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- CN206892503U CN206892503U CN201720366943.5U CN201720366943U CN206892503U CN 206892503 U CN206892503 U CN 206892503U CN 201720366943 U CN201720366943 U CN 201720366943U CN 206892503 U CN206892503 U CN 206892503U
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Abstract
The utility model provides a kind of backlight module, display device, belongs to display technology field, it can solve the problems, such as that existing backlight module can not send polarised light.Backlight module of the present utility model includes：Transparent first substrate；The transmission-type grating being arranged on the first face of the first substrate；Luminescence unit and control unit positioned at the second surface side of the first substrate.The light that backlight module of the present utility model is sent is polarised light, can be directly applied in liquid crystal display device, without polarizer under being set in liquid crystal panel.
Description
Technical field
The utility model belongs to technical field of liquid crystal display, and in particular to a kind of backlight module, display device.
Background technology
Liquid crystal display device is generally made up of liquid crystal panel and backlight module, wherein, backlight module is used for liquid crystal panel
Supply brightness abundance and the light being evenly distributed.For liquid crystal panel in imaging, used is polarised light.And existing backlight module hair
The light gone out does not have polarization characteristic, cannot be used directly for liquid crystal panel.Therefore, among prior art, it will usually in liquid crystal surface
Down polaroid is set in plate, so that the light that backlight module is sent is converted to polarised light.
Utility model content
The utility model is intended at least solve one of technical problem present in prior art, there is provided one kind can produce partially
Shake the backlight module of light.
Technical scheme is a kind of backlight module used by solving the utility model technical problem, including：Transparent first
Substrate；The transmission-type grating being arranged on the first face of the first substrate；Hair positioned at the second surface side of the first substrate
Light unit and control unit.
Preferably, the luminescence unit includes multiple LED.
It is further preferred that multiple LED form LED array.
It is further preferred that the luminescence unit also includes epitaxial layer；The epitaxial layer and LED are formed in first base
On second face of plate, and the epitaxial layer is closer to the first substrate.
Preferably, the backlight module also includes：Second substrate located at the surface side of first substrate second；The control
Unit is formed on first face of the second substrate close to the first substrate.
It is further preferred that described control unit includes control circuit and metal gasket；The control circuit passes through the gold
Category pad electrically connects with the LED.
Preferably, the screen periods of the transmission-type grating are less than 200 nanometers.
Another technical solution is a kind of display device used by solving the utility model technical problem, including above-mentioned
Anticipate a kind of backlight module.
In backlight module of the present utility model, control unit control luminescence unit is lighted, and the light that luminescence unit is sent is worn
Transparent first substrate is crossed, is changed into linearly polarized light after being filtered, polarized to it via transmission-type grating and projects, therefore,
The light that backlight module of the present utility model is sent is polarised light, can be directly applied in liquid crystal display device, without
Polarizer under being set in liquid crystal panel.
Brief description of the drawings
Fig. 1 is the structural representation of the backlight module of embodiment 1 of the present utility model；
Fig. 2 is the structural representation of the display device of embodiment 2 of the present utility model；
Fig. 3 is the flow chart of the preparation method of the backlight module of embodiment 3 of the present utility model；
Wherein reference is：1st, first substrate；2nd, transmission-type grating；3rd, epitaxial layer；4、LED；5th, metal gasket；6th, control
Circuit；7th, second substrate, 8, alignment film, 9, liquid crystal, 10, glass substrate, 11, upper polaroid.
Embodiment
It is below in conjunction with the accompanying drawings and specific real to make those skilled in the art more fully understand the technical solution of the utility model
Mode is applied to be described in further detail the utility model.
Embodiment 1：
As shown in figure 1, the present embodiment provides a kind of backlight module, it includes：Transparent first substrate 1；It is arranged on first
Transmission-type grating 2 on first face of substrate 1；Luminescence unit and control unit positioned at the second surface side of first substrate 1.
The backlight module of the present embodiment can produce polarised light, and it can be used in display device, and tool is provided for liquid crystal panel
There is the light of polarization characteristic.
Wherein, first substrate 1 is carrying carrier, and transmission-type grating 2 is formed directly over.Sent due to luminescence unit
Light will project via transmission-type grating 2, so the first substrate 1 need to be transparent material, so as to avoid the shadow to light transmission
Ring.Preferably, the transparent first substrate 1 can be made up of materials such as glass, sapphires, not limit specifically.
It is understood that the first face and the second face of first substrate 1 are two sides relative thereon, will in the present embodiment
It is used to set the one side of transmission-type grating 2 to be referred to as the first face of first substrate 1 on first substrate 1, another face is the second face.
In the present embodiment, luminescence unit and control unit Relative Transmission type grating 2 are arranged at the opposite side of transparency carrier.Tool
Body, luminescence unit and control unit can be directly arranged on the second face of first substrate 1, can also be located at other structures
On (the second surface side for being located at first substrate 1), in a word, as long as the light that can send luminescence unit will be via first substrate 1
Inject transmission-type grating 2.
Transmission-type grating 2 is made up of multiple parallel and spaced light shielding part and the transmittance section between light shielding part, can
So as to polarization occurs through its light (polarization direction is parallel with grating orientation).Preferably, the transmission-type grating 2 can be gold
Belong to grating, medium/metal mixing grating etc., be not specifically limited herein.
Control unit then controls luminescence unit to light, and the light that luminescence unit is sent passes through transparent first substrate 1, via
Transmission-type grating 2 filtered to it, polarize after be changed into linearly polarized light and project, therefore the backlight module may be directly applied to
In liquid crystal display device, without polarizer under being set in liquid crystal panel.
Preferably, the screen periods of transmission-type grating 2 are less than 200 nanometers, to ensure its polarization effect to visible ray.Its
In, screen periods refer to the distance between two neighboring transmittance section.
Preferably, luminescence unit includes multiple LED (light emitting diode) 4.
In the present embodiment, preferably using multiple LED 4 as light source luminescent, LED 4 can be monochromatic luminous or more
Color lights.In actual applications, LED 4 glow color and quantity set and can be arranged as required to, and do not limit herein.
It is further preferred that multiple forming arrays of LED 4.
Multiple LED 4 are arranged in the form of an array, so that the luminous intensity that backlight module is sent is more uniform.
It is further preferred that luminescence unit also includes epitaxial layer 3；Epitaxial layer 3 and LED 4 are formed the of first substrate 1
On two faces, and epitaxial layer 3 is closer to first substrate 1.
In the present embodiment, preferably LED 4 is arranged on the second face of first substrate 1, in order that LED 4 and first substrate
1 is more matched, and epitaxial layer 3 is set preferably between LED 4 and first substrate 1, so as to ensure that the Integral luminous of backlight module is imitated
Fruit.The epitaxial layer 3 can be semiconductor epitaxial layers.
Preferably, backlight module also includes：Second substrate 7 located at the surface side of first substrate 1 second；Control unit is formed
Second substrate 7 is on the face of first substrate 1.
Specifically, second substrate 7 is arranged at the second surface side of first substrate 1, second substrate 7 close to first substrate 1 one
Face is referred to as the first face of second substrate 7.Control unit is arranged on the first face of second substrate 7.
Wherein, the material of second substrate 7 can or silicon wafer identical with the material of first substrate 1 (Si wafer)
Etc. other materials, do not limit herein.
It is further preferred that control unit includes control circuit 6 and metal gasket 5；Control circuit 6 passes through metal gasket 5 and LED
4 electrical connections.
Control unit preferably controls LED4 to light when controlling luminescence unit with control circuit 6, and by control circuit
6 ad-hoc location sets metal gasket 5, so that LED4 can electrically connect with control circuit 6.Preferably, the control circuit 6 includes
CMOS drive circuits, certainly, it is not limited thereto.
Embodiment 2：
As shown in Fig. 2 the present embodiment provides a kind of display device, including any one backlight module in embodiment 1, in detail
Thin description can refer to the backlight module of embodiment 1, will not be repeated here.Certainly, the display module of the present embodiment can also include
The structures such as display panel.
Preferably, display device also includes：Liquid crystal panel located at the first surface side of the first substrate 1, the liquid crystal
Panel includes glass substrate 10, alignment film 8, liquid crystal 9, upper polaroid 11.
In the present embodiment, because backlight module can send polarised light, therefore without under setting again in liquid crystal display panel
Polaroid, as long as including other structures or parts such as glass substrate 10, alignment film 8, liquid crystal 9, upper polaroids 11.
Display device in the present embodiment can be：Liquid crystal display, Electronic Paper etc. have product or the portion of display function
Part.
Embodiment 3：
As shown in Figure 1, Figure 3, the present embodiment provides a kind of preparation method of backlight module, and the backlight module is embodiment 1
In any one backlight module.The preparation method of the backlight module includes：
S1, transmission-type grating 2 is formed on the first face of transparent first substrate 1.
Wherein, transmission-type grating 2 can be metal grating, medium/metal mixing grating etc..Transparent first substrate 1 can
To be made up of materials such as glass, sapphires.First face of first substrate 1 refers to be used to set transmission-type grating 2 on first substrate 1
Simultaneously.
Preferably, transmission-type grating 2 is being prepared by the methods of inkjet printing, nano impression on transparent first substrate 1.
It should be noted that the preparation method of transmission-type grating 2 can also be other methods, will not be repeated here.
S2, form luminescence unit and control unit positioned at the second surface side of first substrate 1.
Wherein, the second face of first substrate 1 refers to one side relative with the first face on first substrate 1.Luminescence unit includes more
Individual LED 4.Control unit includes control circuit 6 and sheet metal.
Preferably, step S2 is specifically included：
S21, epitaxial layer 3 is formed on the second face of first substrate 1.
S22, multiple LED 4 are prepared on epitaxial layer 3.
S23, in second substrate 7 control circuit 6 is formed on the face of first substrate 1.
S24, metal gasket 5 is formed in control circuit 6.
S25, that the first surface side of the second surface side of first substrate 1 and second substrate 7 carries out to contraposition is integrated, makes control circuit
6 are electrically connected by metal gasket 5 with LED 4.
It should be noted that the step of transmission-type grating 2 formed above, and form the step of luminescence unit and control unit
Absolute ordinal relation is had no between rapid, the order interchangeable of the two, can also be carried out simultaneously；And shape on first substrate 1 above
The step of into structure, and also without absolute ordinal relation, the order of the two between the step of structure is formed on second substrate 7
Interchangeable, it can also carry out simultaneously.
It is understood that the step of forming said structure can use prior art and material to complete, seldom do be situated between herein
Continue.
The preparation method of the backlight module of the present embodiment, for preparing the backlight module of embodiment 1, pass through control unit control
Luminescence unit processed lights, and the light that luminescence unit is sent passes through transparency carrier, it is filtered, partially via transmission-type grating 2
Projected after shaking.Therefore the light that the backlight module prepared by the preparation method of the backlight module of the present embodiment offer is sent is polarised light,
It can be directly applied in liquid crystal display device, without polarizer under being set in liquid crystal panel.
It is understood that embodiment of above is merely to illustrate that principle of the present utility model and used exemplary
Embodiment, but the utility model is not limited thereto.For those skilled in the art, this is not being departed from
In the case of the spirit and essence of utility model, various changes and modifications can be made therein, and these variations and modifications are also considered as this reality
With new protection domain.
Claims (9)
- A kind of 1. backlight module, it is characterised in that including：Transparent first substrate；The transmission-type grating being arranged on the first face of the first substrate；Luminescence unit and control unit positioned at the second surface side of the first substrate；First face and second face are two sides relative on the first substrate.
- 2. backlight module according to claim 1, it is characterised in thatThe screen periods of the transmission-type grating are less than 200 nanometers.
- 3. backlight module according to claim 1, it is characterised in thatThe luminescence unit includes multiple LED.
- 4. backlight module according to claim 3, it is characterised in thatMultiple LED line up array.
- 5. backlight module according to claim 3, it is characterised in thatThe luminescence unit also includes epitaxial layer；The epitaxial layer and LED are formed on the second face of the first substrate, and the epitaxial layer than the LED closer to institute State first substrate.
- 6. backlight module according to claim 3, it is characterised in that also include：Second substrate located at the surface side of first substrate second；Described control unit is formed in the second substrate close to described On the face of first substrate.
- 7. backlight module according to claim 6, it is characterised in thatDescribed control unit includes control circuit and metal gasket；The control circuit is electrically connected by the metal gasket with the LED.
- 8. a kind of display device, it is characterised in that including the backlight module described in any one in claim 1-7.
- 9. display device according to claim 8, it is characterised in that the display device also includes：Liquid crystal panel located at the first surface side of the first substrate, the liquid crystal panel include glass substrate, alignment film, liquid Brilliant, upper polaroid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720366943.5U CN206892503U (en) | 2017-04-10 | 2017-04-10 | Backlight module, display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720366943.5U CN206892503U (en) | 2017-04-10 | 2017-04-10 | Backlight module, display device |
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| Publication Number | Publication Date |
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| CN206892503U true CN206892503U (en) | 2018-01-16 |
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| CN201720366943.5U Active CN206892503U (en) | 2017-04-10 | 2017-04-10 | Backlight module, display device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107193158A (en) * | 2017-06-15 | 2017-09-22 | 京东方科技集团股份有限公司 | A kind of preparation method of backlight module, display device and backlight module |
| CN108987382A (en) * | 2018-07-27 | 2018-12-11 | 京东方科技集团股份有限公司 | A kind of electroluminescent device and preparation method thereof |
-
2017
- 2017-04-10 CN CN201720366943.5U patent/CN206892503U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107193158A (en) * | 2017-06-15 | 2017-09-22 | 京东方科技集团股份有限公司 | A kind of preparation method of backlight module, display device and backlight module |
| CN107193158B (en) * | 2017-06-15 | 2020-04-17 | 京东方科技集团股份有限公司 | Backlight module, display device and preparation method of backlight module |
| US10890801B2 (en) | 2017-06-15 | 2021-01-12 | Beijing Boe Display Technology Co., Ltd. | Backlight module, display device and fabricating method for backlight module |
| CN108987382A (en) * | 2018-07-27 | 2018-12-11 | 京东方科技集团股份有限公司 | A kind of electroluminescent device and preparation method thereof |
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