CN209766465U - Backlight source structure based on black printing ink layer - Google Patents
Backlight source structure based on black printing ink layer Download PDFInfo
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- CN209766465U CN209766465U CN201920558430.3U CN201920558430U CN209766465U CN 209766465 U CN209766465 U CN 209766465U CN 201920558430 U CN201920558430 U CN 201920558430U CN 209766465 U CN209766465 U CN 209766465U
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Abstract
The utility model relates to a backlight structure based on black printing ink layer, the backlight include base plate, electrode, pin, LED light source, it has a plurality of electrodes that set up in pairs to print on the base plate, each electrode is connected with the pin, the LED light source sets up on the electrode that sets up in pairs and is connected with the electrode electricity that is used to the right; the LED light source is limited to be a chip projection area in an orthographic projection area on the upper surface of the substrate, an annular or frame-shaped light absorption coating area is arranged on the periphery of the chip projection area, a black ink layer covering part of electrodes and pins is arranged in the light absorption coating area, and the black ink layer extends into the edge area of the chip projection area. The utility model has the advantages that: the utility model discloses backlight structure based on black printing ink layer can effectively improve the light-emitting homogeneity and the whole display effect of backlight.
Description
Technical Field
The utility model relates to a LED light source lighting technology field, in particular to backlight structure based on black printing ink layer.
background
the LED packaging light source device has the characteristics of high energy conservation, environmental friendliness, long service life, high luminous efficiency and the like, and is widely applied to the fields of medical treatment, illumination and the like. With the continuous development of the market, the pursuit of customers for the light efficiency is continuously improved. In order to improve the light emitting efficiency of the LED light source and the light emitting performance of the LED light source device, the design of the substrate and the bracket is also important.
in the flip LED light source structure in the conventional technology, a circuit is printed on a light source substrate, and the circuit part is covered with solder resist ink except for a bonding pad and is also provided with a reflecting layer. The area of the reflecting layer is generally larger than that of the solder resist ink covering layer, so that light which is close to the periphery of the LED light source is strongly reflected by the reflecting layer when the LED light source emits light, the periphery of the LED light source is high in brightness visually, and the display uniformity and the whole display effect are further reduced.
therefore, it is very necessary to develop a backlight structure based on a black ink layer, which can effectively improve the light-emitting uniformity and the overall display effect of the backlight.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a light-emitting homogeneity that can effectively improve the backlight and whole display effect's backlight structure based on black printing ink layer.
in order to solve the technical problem, the utility model adopts the technical scheme that: the utility model provides a backlight structure based on black printing ink layer, its innovation point lies in: the backlight source comprises a substrate, electrodes, pins and an LED light source,
The LED light source is arranged on the electrodes arranged in pairs and electrically connected with the electrodes for pairing;
The LED light source is limited to be a chip projection area in an orthographic projection area on the upper surface of the substrate, an annular or frame-shaped light absorption coating area is arranged on the periphery of the chip projection area, a black ink layer covering part of electrodes and pins is arranged in the light absorption coating area, and the black ink layer extends into the edge area of the chip projection area.
Further, the area ratio of the black printing ink layer area extending into the chip projection area to the chip projection area is 1-2: 10.
Further, the periphery of the light absorption coating area is provided with an annular or frame-shaped reflecting area, and the reflecting area is provided with a reflecting layer.
Further, the light absorption coating area is in a frame shape, and the positions of the black ink layer and the LED light source meet the following conditions:
The whole base plate is limited to be in the horizontal direction,
l 1 is the length of each LED light source,
l 2 is the width of each LED light source,
H is the height of each LED light source,
h is the height of the solder in each LED light source,
n 1 is the refractive index of the LED light source,
n 2 is the refractive index of the light-transmitting medium outside the LED light source,
L D1 is the distance from the outer side edge of the black ink layer corresponding to the LED light source in the length direction to the edge of the LED light source,
l D2 is the distance from the outer side edge of the black ink layer corresponding to the width direction of the LED light source to the edge of the LED light source on the side,
Then
And α is 2 to 3.
the utility model has the advantages that: the utility model provides a backlight structure based on black printing ink layer adopts the black printing ink layer of unique structure, and this black printing ink layer can be its light absorption of next-door neighbour around when LED light source is luminous, can overcome in the conventional art because the reflection stratum is to the strong reflection of light, thereby leads to the LED light source highlight's problem in the vision; and then adopt the utility model discloses a backlight structure technical scheme on black printing ink layer can effectively improve the light-emitting homogeneity of backlight.
drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
fig. 1 is a schematic view of a backlight structure based on a black ink layer.
Fig. 2 is a diagram illustrating a positional relationship between the black ink layer and the LED light source in fig. 1.
Detailed Description
the following examples are presented to enable those skilled in the art to more fully understand the present invention and are not intended to limit the scope of the present invention.
Examples
In the present embodiment, the backlight structure based on the black ink layer is shown in fig. 1, and the backlight includes a substrate 1, an electrode 2, a pin 3, and an LED light source 4.
A plurality of electrodes 2 arranged in pairs are printed on the substrate 1, each electrode 2 is connected with a pin 3, and an LED light source 4 is arranged on the electrodes 2 arranged in pairs and electrically connected with the electrodes 2 for pairs.
The orthographic projection area of the LED light source 4 on the upper surface of the substrate 1 is limited to be a chip projection area, an annular or frame-shaped light absorption coating area is arranged on the periphery of the chip projection area, a black ink layer 5 covering part of electrodes and pins is arranged in the light absorption coating area, and the black ink layer 5 extends into the edge area of the chip projection area.
the more specific implementation manner of the embodiment is that the area ratio of the black ink layer 5 extending into the chip projection area to the chip projection area is 1-2: 10.
the utility model discloses in, extinction coating area is the frame shape, and black printing ink layer 5 satisfies following condition with LED light source 4 positions:
the base plate 1 is defined to be in a horizontal direction as a whole,
l 1 is the length of each LED light source 4,
l 2 is the width of each LED light source 4,
H is the height of each LED light source 4,
h is the height of the solder in each LED light source 4,
n 1 is the refractive index of the LED light source 4,
n 2 is the refractive index of the light-transmitting medium outside the LED light source 4,
l D1 is the distance from the edge of the LED light source 4 on the side outside the corresponding light absorbing coated area in the length direction of the LED light source 4,
l D2 is the distance from the edge of the LED light source 4 on the side outside the corresponding light absorbing coated area in the width direction of the LED light source 4,
Then
And α is 2 to 3.
furthermore, the periphery of the light absorption coating area is also provided with an annular or frame-shaped reflecting area, and the reflecting area is provided with a reflecting layer.
in the backlight source structure based on the black ink layer, the black ink layer 5 with a unique structure is adopted, and the black ink layer 5 can absorb light which is close to the periphery of the LED light source when the LED light source emits light, so that the problem that the periphery of the LED light source is high in brightness visually due to strong reflection of a reflecting layer to the light in the conventional technology can be solved; further, by adopting the technical scheme of the backlight source structure of the black ink layer 5 in this embodiment, the light-emitting uniformity of the backlight source can be effectively improved.
the basic principles and main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides a backlight structure based on black printing ink layer which characterized in that: the backlight source comprises a substrate, electrodes, pins and an LED light source,
The LED light source is arranged on the electrodes arranged in pairs and electrically connected with the electrodes for pairing;
The LED light source is limited to be a chip projection area in an orthographic projection area on the upper surface of the substrate, an annular or frame-shaped light absorption coating area is arranged on the periphery of the chip projection area, a black ink layer covering part of electrodes and pins is arranged in the light absorption coating area, and the black ink layer extends into the edge area of the chip projection area.
2. the black ink layer-based backlight structure of claim 1, wherein: the area ratio of the black printing ink layer area extending into the chip projection area to the chip projection area is 1-2: 10.
3. the black ink layer-based backlight structure of claim 1, wherein: and an annular or frame-shaped reflecting region is arranged at the periphery of the light absorption coating region, and a reflecting layer is arranged in the reflecting region.
4. the black ink layer-based backlight structure of claim 1, wherein: the light absorption coating area is in a frame shape, and the positions of the black ink layer and the LED light source meet the following conditions:
The whole base plate is limited to be in the horizontal direction,
L 1 is the length of each LED light source,
l 2 is the width of each LED light source,
h is the height of each LED light source,
h is the height of the solder in each LED light source,
n 1 is the refractive index of the LED light source,
n 2 is the refractive index of the light-transmitting medium outside the LED light source,
L D1 is the distance from the outer side edge of the black ink layer corresponding to the LED light source in the length direction to the edge of the LED light source,
L D2 is the distance from the outer side edge of the black ink layer corresponding to the width direction of the LED light source to the edge of the LED light source on the side,
Then
And α is 2 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920558430.3U CN209766465U (en) | 2019-04-23 | 2019-04-23 | Backlight source structure based on black printing ink layer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920558430.3U CN209766465U (en) | 2019-04-23 | 2019-04-23 | Backlight source structure based on black printing ink layer |
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| CN209766465U true CN209766465U (en) | 2019-12-10 |
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| CN201920558430.3U Active CN209766465U (en) | 2019-04-23 | 2019-04-23 | Backlight source structure based on black printing ink layer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113054080A (en) * | 2021-03-30 | 2021-06-29 | 佛山市国星光电股份有限公司 | LED support machining method and machining device |
| CN113540308A (en) * | 2020-04-22 | 2021-10-22 | 东莞市中麒光电技术有限公司 | Substrate structure of LED display module and manufacturing method |
-
2019
- 2019-04-23 CN CN201920558430.3U patent/CN209766465U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113540308A (en) * | 2020-04-22 | 2021-10-22 | 东莞市中麒光电技术有限公司 | Substrate structure of LED display module and manufacturing method |
| CN113540308B (en) * | 2020-04-22 | 2023-06-09 | 东莞市中麒光电技术有限公司 | Substrate structure of LED display module and manufacturing method |
| CN113054080A (en) * | 2021-03-30 | 2021-06-29 | 佛山市国星光电股份有限公司 | LED support machining method and machining device |
| CN113054080B (en) * | 2021-03-30 | 2022-05-24 | 佛山市国星光电股份有限公司 | LED support machining method and machining device |
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