CN114078995A - Polarization type LED light-emitting device and manufacturing method thereof - Google Patents

Polarization type LED light-emitting device and manufacturing method thereof Download PDF

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Publication number
CN114078995A
CN114078995A CN202010852397.2A CN202010852397A CN114078995A CN 114078995 A CN114078995 A CN 114078995A CN 202010852397 A CN202010852397 A CN 202010852397A CN 114078995 A CN114078995 A CN 114078995A
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light
glue
led
layer
polarized
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CN202010852397.2A
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不公告发明人
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Canbest Opto Electrical Science &technology Co ltd
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Canbest Opto Electrical Science &technology Co ltd
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Priority to CN202010852397.2A priority Critical patent/CN114078995A/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/58Optical field-shaping elements
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/50Wavelength conversion elements
    • H01L33/507Wavelength conversion elements the elements being in intimate contact with parts other than the semiconductor body or integrated with parts other than the semiconductor body
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2933/00Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
    • H01L2933/0008Processes
    • H01L2933/0033Processes relating to semiconductor body packages
    • H01L2933/0041Processes relating to semiconductor body packages relating to wavelength conversion elements

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Power Engineering (AREA)
  • Led Device Packages (AREA)

Abstract

The invention relates to an LED display device, in particular to a polarization type LED light-emitting device, which comprises a single light-emitting wafer and a polarization type light-transmitting layer, wherein the light-emitting wafer is positioned at the bottom layer of the LED light-emitting device and comprises R, G, B three-color display, the polarization type light-transmitting layer is positioned right above the polarization type light-transmitting layer, a protective film is arranged on the outer layer of the polarization type light-transmitting layer, light-transmitting glue is filled between the light-emitting wafer and the polarization light-transmitting layer, and a light-shielding part is arranged at the periphery of the light-emitting wafer; the existing 3D polarization display mode is added, and the later maintenance is facilitated.

Description

Polarization type LED light-emitting device and manufacturing method thereof
Technical Field
The present invention relates to an LED display device, and more particularly, to a polarized LED lighting device.
Background
The existing LED display screen mainly comprises a plane display and a 3D (three-dimensional) display, the early LED display screen mainly adopts single-color or multi-color LED light-emitting lamp beads, content information is displayed through a control circuit on the back, and the color is single; with the improvement of the technology and the improvement of the production process, the LED color display technology is applied, and the application of outdoor curtain walls, advertisement display and the like is more; people gradually expand the application of LED display technology to media application, and the stereoscopic LED display screen which is contacted in a close range and is most obvious in consumer experience is realized by adopting the polarized LED display technology, and a polarized film manufactured by the traditional polarized LED stereoscopic display screen is generally realized by pasting the polarized films with inconsistent left and right optical rotation in a splicing mode or patterning and combining the circularly polarized light sheet and a phase compensation film.
Patent No. 201410010828.5, publication No. CN103700326B, discloses a "polarization type LED display panel based on polarization mode and a method for forming a polarization film", which mainly adopts a method of reducing the problem of the display viewing angle caused by the height of the polarization film by combining a convex-concave polarization film having a polarization effect with a structure and an LED light emitting device.
Patent number 201910496353.1, publication number CN110098179A, the patent discloses a "paster LED lamp pearl and its batch manufacturing method that send polarized light", this invention discloses the structure and batch manufacturing method of paster LED lamp pearl, paste the polarizing film in each LED in practical application one by one, the problem still found has, factors such as range, luminance that polarize and show can directly influence the use experience, especially in the use of cinema, the impression is experienced obviously, additional polarizing film structure has the weakening effect to LED's display range, luminance, perhaps will increase the power of lamp pearl in order to improve luminance, the heating of display screen will increase like this, and then influence the heat dissipation that its used, the trouble appears easily.
Therefore, the light guide layer on the LED light-emitting wafer is directly made into a polarization type by combining the prior art and utilizing the principle that the polarizing film has a dichroic transparent film, the light guide layer allows light parallel to the light transmission axis to pass through, and the light perpendicular to the light transmission axis is absorbed, and then the light guide layer is directly processed by adopting a surface mount technology when a screen is manufactured, so that the production efficiency is greatly improved, and the light-emitting thickness of the LED polarization type screen is reduced.
Disclosure of Invention
The present invention is directed to solving the above problems, and provides a polarized LED light emitting device and a method for manufacturing the same.
The technical scheme of the invention is as follows:
a polarization type LED light-emitting device comprises a single light-emitting wafer and a polarization type light-transmitting layer, wherein the light-emitting wafer is located on the bottom layer of the LED light-emitting device and comprises R, G, B three-color display, the polarization type light-transmitting layer is located right above the polarization type light-transmitting layer, a protective film is arranged on the outer layer of the polarization type light-transmitting layer, light-transmitting glue is filled between the light-emitting wafer and the polarization light-transmitting layer, and a light shielding part is arranged on the periphery of the light-emitting wafer.
The polarization type light-transmitting layer is made of two different light-transmitting adhesive materials, a wedge-shaped structure with an included angle alpha is formed between the two light-transmitting adhesive materials, one A is adhered to the lower layer, and the other B is adhered to the upper layer;
the polarization type light-transmitting layer is made of two different light-transmitting glue materials, a wedge-shaped structure with an included angle beta is formed between the two light-transmitting glue materials, one B glue is arranged on the lower layer, and the other A glue is arranged on the upper layer.
The included angle values of alpha and beta enable the two light-emitting chips to form a 3D polarization effect.
The polarized light-transmitting layer adopts a multilayer structure film structure, wherein two layers are glass slides, and oblong nano particles are embedded between the two layers, so that the glass slides have a linear grating effect and can selectively transmit light generated by the light-emitting wafer.
A method of making the polarized LED lighting device of claim 1, comprising the steps of:
step 1, fixing an LED chip on a circuit board or a bracket by using an adhesive, and connecting the anode and the cathode of the chip to a substrate by using a lead;
step 2, preheating the semi-finished product formed in the step 1;
step 3, adjusting the LED chip fixing support to enable the first die to keep an alpha included angle with the horizontal plane;
step 4, using a glue dispenser to perform glue dispensing treatment on the step 3 by using glue A, wherein the glue is thick to cover the LED power generation wafer;
step 5, baking the semi-finished product in the step 4 to solidify the glue A filled in each LED lamp bead support;
step 6, repeating the steps 1 to 5, and filling the glue B;
step 7, braiding the LED lamp beads A;
and 8, exchanging the A, B glue sequence, and repeating the steps 1 to 7 to form the LED lamp bead braid B.
And 9, welding the LED lamp bead braid A and the LED lamp bead braid B on the support according to the requirement of the display device.
And (4) finishing the LED lamp beads which are not braided in the step (6) to be used as scattered sheets, and using the scattered sheets as spare parts.
The invention has the advantages of
The polarization type LED light-emitting device reduces post-production difficulty, reduces thickness, reduces power consumption, and improves brightness and effective visual range; the existing 3D polarization display mode is added, and the later maintenance is facilitated.
Drawings
Fig. 1 is a schematic diagram of the polarized LED lighting device.
Fig. 2 is a schematic perspective view of fig. 1.
FIG. 3 shows the polarized LED lighting device
Fig. 4 shows the polarized LED lighting device.
Fig. 5 is a schematic structural diagram of the polarized LED lighting device.
Fig. 6 is a diagram illustrating the internal effects of the polarized LED lighting device chip.
1 is the base plate, 2 is polarization LED lamp pearl, 3 is PVC outer support, 4 is the collet, 5 is A glue, 6 is B glue, 7 is polarization glass slide, 8 is the positive pole, 9 is the negative pole, 10 is luminous wafer.
Detailed Description
The first embodiment is as follows: referring to fig. 1, 2 to 6, the technical solution of the present invention is:
a polarization type LED light-emitting device comprises a single light-emitting wafer and a polarization type light-transmitting layer, wherein the light-emitting wafer is positioned at the bottom layer of the LED light-emitting device, the polarization type light-transmitting layer is positioned right above the polarization type light-transmitting layer, a protective film is arranged on the outer layer of the polarization type light-transmitting layer, light-transmitting glue is filled between the light-emitting wafer and the polarization light-transmitting layer, and a light shielding part is arranged on the periphery of the light-emitting wafer.
The polarizing light-transmitting layer is a glass polarizing plate.
The glass polaroid adopts a multilayer structure film structure, and oblong nano particles are embedded in one layer and clamped between two adjacent layers.
The glass polaroid adopts two different crystal materials, is bonded together through a wedge-shaped structure and an adhesive, wherein one is arranged at the lower layer, and the other is arranged at the upper layer.
A polarization type LED light-emitting device comprises a single light-emitting wafer and a polarization type light-transmitting layer, wherein the light-emitting wafer is located on the bottom layer of the LED light-emitting device and comprises R, G, B three-color display, the polarization type light-transmitting layer is located right above the polarization type light-transmitting layer, a protective film is arranged on the outer layer of the polarization type light-transmitting layer, light-transmitting glue is filled between the light-emitting wafer and the polarization light-transmitting layer, and a light shielding part is arranged on the periphery of the light-emitting wafer.
The polarization type light-transmitting layer is made of two different light-transmitting adhesive materials, a wedge-shaped structure with an included angle alpha is formed between the two light-transmitting adhesive materials, one A is adhered to the lower layer, and the other B is adhered to the upper layer;
the polarization type light-transmitting layer is made of two different light-transmitting glue materials, a wedge-shaped structure with an included angle beta is formed between the two light-transmitting glue materials, one B glue is arranged on the lower layer, and the other A glue is arranged on the upper layer.
The included angle values of alpha and beta enable the two light-emitting chips to form a 3D polarization effect.
A method of making the polarized LED lighting device of claim 1, comprising the steps of:
step 1, fixing an LED chip on a circuit board or a bracket by using an adhesive, and connecting the anode and the cathode of the chip to a substrate by using a lead;
step 2, preheating the semi-finished product formed in the step 1;
step 3, adjusting the LED chip fixing support to enable the first die to keep an alpha included angle with the horizontal plane;
step 4, using a glue dispenser to perform glue dispensing treatment on the step 3 by using glue A, wherein the glue is thick to cover the LED power generation wafer;
step 5, baking the semi-finished product in the step 4 to solidify the glue A filled in each LED lamp bead support;
step 6, repeating the steps 1 to 5, and filling the glue B;
step 7, braiding the LED lamp beads A;
and 8, exchanging the A, B glue sequence, and repeating the steps 1 to 7 to form the LED lamp bead braid B.
And 9, welding the LED lamp bead braid A and the LED lamp bead braid B on the support according to the requirement of the display device.
Example two: referring to fig. 3, the same as the first embodiment, except that the polarized light-transmitting layer is a multi-layer thin film structure, two layers are glass slides, and oblong nanoparticles are embedded between the two layers, so that the glass slides have a linear grating effect and can selectively transmit light generated by the light-emitting chip.
Step 1, fixing an LED chip on a circuit board or a bracket by using an adhesive, and connecting the anode and the cathode of the chip to a substrate by using a lead;
step 2, preheating the semi-finished product formed in the step 1;
step 3, using a glue dispenser to perform glue dispensing treatment on the step 3 by using glue A, wherein the glue is thick to cover the LED power generation wafer;
step 4, baking the semi-finished product in the step 3 to solidify the light-transmitting glue filled in each LED lamp bead support;
step 5, sticking the manufactured polarization interlayer glass slide on the upper layer of the light-transmitting adhesive, and paying attention to the direction difference;
step 6, braiding the LED lamp beads;
and 7, welding the lamp strips polarized in different directions on the support according to the requirement of the display device.

Claims (7)

1. A polarization type LED light-emitting device comprises a single light-emitting wafer and a polarization type light-transmitting layer, and is characterized in that the light-emitting wafer is located on the bottom layer of the LED light-emitting device and comprises R, G, B three-color display, the polarization type light-transmitting layer is located right above the polarization type light-transmitting layer, a protective film is arranged on the outer layer of the polarization type light-transmitting layer, light-transmitting glue is filled between the light-emitting wafer and the polarization light-transmitting layer, and a light shielding part is arranged on the periphery of the light-emitting wafer.
2. The polarized LED lighting device of claim 1, wherein the polarized light-transmitting layer is made of two different light-transmitting glue materials, and a wedge-shaped structure with an included angle α is formed between the two glue materials, wherein one glue A is on the lower layer, and the other glue B is on the upper layer.
3. The polarized LED lighting device of claim 1, wherein the polarized light-transmitting layer is made of two different light-transmitting glue materials, and a wedge-shaped structure with an included angle β is formed between the two glue materials, wherein one glue B is on the lower layer, and the other glue A is on the upper layer.
4. A polarized LED lighting device according to claims 2 and 3, characterized in that the values of the included angles α and β are such that the two light emitting chips form a 3D polarized display.
5. The polarized LED lighting device of claim 1, wherein the polarized light transparent layer is a multi-layer thin film structure, two layers of which are glass slides, and oblong nanoparticles are embedded between the two layers, so that the glass slides have a linear grating effect and can selectively transmit light generated by the light emitting chip.
6. A method of making a polarized LED lighting device according to claim 1, comprising the steps of:
step 1, fixing an LED chip on a circuit board or a bracket by using an adhesive, and connecting the anode and the cathode of the chip to a substrate by using a lead;
step 2, preheating the semi-finished product formed in the step 1;
step 3, adjusting the LED chip fixing support to enable the first die to keep an alpha included angle with the horizontal plane;
step 4, using a glue dispenser to perform glue dispensing treatment on the step 3 by using glue A, wherein the glue is thick to cover the LED power generation wafer;
step 5, baking the semi-finished product in the step 4 to solidify the glue A filled in each LED lamp bead support;
step 6, repeating the steps 1 to 5, and filling the glue B;
step 7, braiding the LED lamp beads A;
8, changing the A, B glue sequence, and repeating the steps 1 to 7 to form an LED lamp bead braid B;
and 9, welding the LED lamp bead braid A and the LED lamp bead braid B on the support according to the requirement of the display device.
7. A polarized LED lighting device manufacturing method according to claim 6, characterized in that the un-braided LED beads of step 6 are used as a patch, which is used as a spare part.
CN202010852397.2A 2020-08-21 2020-08-21 Polarization type LED light-emitting device and manufacturing method thereof Pending CN114078995A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010852397.2A CN114078995A (en) 2020-08-21 2020-08-21 Polarization type LED light-emitting device and manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010852397.2A CN114078995A (en) 2020-08-21 2020-08-21 Polarization type LED light-emitting device and manufacturing method thereof

Publications (1)

Publication Number Publication Date
CN114078995A true CN114078995A (en) 2022-02-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010852397.2A Pending CN114078995A (en) 2020-08-21 2020-08-21 Polarization type LED light-emitting device and manufacturing method thereof

Country Status (1)

Country Link
CN (1) CN114078995A (en)

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