CN211181603U - Light-emitting circuit, backlight module and display - Google Patents
Light-emitting circuit, backlight module and display Download PDFInfo
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- CN211181603U CN211181603U CN201922176273.2U CN201922176273U CN211181603U CN 211181603 U CN211181603 U CN 211181603U CN 201922176273 U CN201922176273 U CN 201922176273U CN 211181603 U CN211181603 U CN 211181603U
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
Abstract
The application provides a lighting circuit, backlight unit and display, wherein, lighting circuit includes: a first branch and a second branch. The first branch includes a plurality of first light emitting elements. The second branch comprises a plurality of second light-emitting elements. The working current of the first branch circuit is less than that of the second branch circuit, the first light-emitting elements and the second light-emitting elements form a light-emitting area, the first light-emitting elements are located in the middle of the light-emitting area, and the second light-emitting elements are located at the edge of the light-emitting area. According to the light emitting circuit, due to the superposition effect of the first light emitting element and the adjacent light emitting elements on the two sides, the brightness of the middle part of the light emitting area is higher, the circuit of the second branch circuit is larger than that of the first branch circuit, so that the brightness of the second light emitting element positioned at the edge of the light emitting area is larger than that of the first light emitting element positioned in the light emitting area, the brightness of the edge of the light emitting area is the same as that of the middle part of the light emitting area, and the uniformity of the brightness of the backlight module is guaranteed.
Description
Technical Field
The application relates to the technical field of display, in particular to a light-emitting circuit, a backlight module with the light-emitting circuit and a display with the backlight module.
Background
The statements in this application as background to the related art related to this application are merely provided to illustrate and facilitate an understanding of the contents of the present application and are not to be construed as an admission that the applicant expressly or putatively admitted the prior art of the filing date of the present application at the first filing date.
With the rapid development of flat panel display technology, liquid crystal displays (L CD) are widely used in consumer products for information and communication devices due to their advantages of small size, high image quality, no radiation, and low driving voltage, since liquid crystal display panels in L CD do not emit light, it is necessary to provide a backlight module on the back of the liquid crystal display panel as a backlight source to normally display images, and light emitting diodes (L ED) have the characteristics of low power consumption, small size, long life, low temperature rise, etc., and are generally used as the backlight source of liquid crystal display devices in the form of L ED backlight modules.
In the design of the conventional L ED backlight driving circuit, the L ED lamp brightness of different L ED lamp groups is different, so that the backlight brightness is not uniform, and the display effect of the module frame is finally affected.
SUMMERY OF THE UTILITY MODEL
The embodiment of the first aspect of the present application provides a light emitting circuit, applied to a backlight module, including: a first branch including a plurality of first light emitting elements; and a second branch comprising a plurality of second light emitting elements; the working current of the first branch circuit is smaller than that of the second branch circuit, the first light-emitting elements and the second light-emitting elements form a light-emitting area, the first light-emitting elements are located in the middle of the light-emitting area, and the second light-emitting elements are located at the edge of the light-emitting area.
The application provides a light-emitting circuit, because the superposition of first light-emitting component and adjacent both sides light-emitting component, the luminance of sending out light zone middle part is higher than first light-emitting component's luminance, and the operating current of second branch road is greater than the operating current of first branch road, make the luminance that is located the marginal second light-emitting component of sending out light zone be greater than the luminance that is located the first light-emitting component of sending out light zone middle part, make the luminance that sends out light zone edge the same or similar the same with the luminance that sends out light zone middle part, thereby the homogeneity of backlight unit luminance has been guaranteed, the use comfort of product has been improved.
Optionally, the first light emitting element is a light emitting diode, and/or the second light emitting element is a light emitting diode; the output end of the first branch is connected with the output end of the second branch. The addition of the inventive content corresponds to the technical effect of the slave part.
In the embodiment, the first branch and the second branch share one output end, so that the arrangement of one line is reduced, and the space for arranging the line is increased; the light emitting diode has the advantages of high luminous efficiency, low power consumption, long service life, easy control, no maintenance, safety, environmental protection and the like.
Optionally, the first branch comprises a plurality of first sub-circuits, and the second branch comprises a plurality of second sub-circuits.
In this embodiment, divide into a plurality of first sub-circuits with first branch road, when first light-emitting component goes wrong, only need change its sub-circuit at place, convenient and fast has improved the maintenance speed of product to the use comfort of product has been improved, and then has improved the market competition of product. In a similar way, the second branch circuit is divided into a plurality of second sub-circuits, when the second light-emitting element goes wrong, only the sub-circuit where the second branch circuit is located needs to be replaced, the operation is convenient and fast, the overhauling speed of the product is improved, the use comfort of the product is improved, and the market competitiveness of the product is further improved.
Optionally, a first sub-circuit and a second sub-circuit are integrated on a circuit board.
In this embodiment, constitute a lamp strip with first sub-circuit and second sub-circuit integration on a circuit board, a plurality of lamp strip concatenations constitute backlight unit's light source, when first light emitting component and second light emitting component on this circuit board go wrong, only need change its circuit board at place, convenient and fast has improved the maintenance speed of product to the use comfort of product has been improved, and then has improved the market competition of product.
Optionally, the circuit board is a strip, the second sub-circuit is connected in series to the second light emitting elements at two ends of the strip circuit board, and the first sub-circuit is connected in series to the first light emitting element at the middle position of the strip circuit board.
In the embodiment, the brightness of the second light-emitting elements positioned at the two ends of the strip-shaped circuit board is greater than that of the first light-emitting elements positioned in the middle of the strip-shaped circuit board, so that the brightness of the edge of the light-emitting area is the same as or approximately the same as that of the middle of the light-emitting area, the uniformity of the brightness of the backlight module is ensured, and the use comfort of the product is improved.
Optionally, the first sub-circuit is integrated on a first circuit board, and the second sub-circuit is integrated on a second circuit board.
In this embodiment, the light-emitting circuit only includes two branches, simple structure, and convenient manufacturing to the production efficiency of product has been improved, and then has reduced the production manufacturing cost of product, has increased the market competition of product.
Optionally, the first light emitting elements of the first branch are connected in series, and the second light emitting elements of the second branch are connected in series.
In this embodiment, in the first branch, the currents of the first light emitting elements connected in series with each other are the same, which ensures that the brightness of each first light emitting element is the same; in a similar way, in the second branch circuit, the currents of the second light-emitting elements which are connected in series are the same, and the brightness of each second light-emitting element is ensured to be the same, so that the brightness uniformity of the backlight module is ensured, and the use comfort level of the product is improved.
Embodiments of the second aspect of the present application provide a backlight module, including any one of the light emitting circuits described above.
The backlight module that this application second aspect provided, luminous even, luminance is even, has guaranteed the use comfort of product.
Embodiments of the third aspect of the present application provide a display, including the backlight module described above.
The display that this application third aspect provided shows evenly, has guaranteed the use comfort of product.
Optionally, the display further comprises: the first sensor detects optical information at the edge of a light emitting area of the backlight module in real time and sends a first electric signal; the second sensor detects optical information in a light emitting area of the backlight module in real time and sends a second electric signal; and the controller receives the first electric signal and the second electric signal and adjusts the current of the first branch or the second branch of the backlight module according to the first electric signal and the second electric signal.
Embodiments of a fourth aspect of the present application provide a display, including a light emitting circuit, the light emitting circuit including a first branch and a second branch; the first branch comprises a plurality of first light emitting elements, and the second branch comprises a plurality of second light emitting elements; the first light-emitting elements and the second light-emitting elements form a light-emitting area, the first light-emitting elements are located in the middle of the light-emitting area, and the second light-emitting elements are located at the edge of the light-emitting area; the display further includes: the first sensor detects optical information at the edge of the luminous zone in real time and sends a first electric signal; a second sensor that detects optical information inside the light emitting region in real time and transmits a second electrical signal; and the controller receives the first electric signal and the second electric signal and adjusts the current of the first branch or the second branch according to the first electric signal and the second electric signal.
The application provides a display, because the superposition of luminous circuit's first light emitting component and adjacent both sides light emitting component, the luminance that sends out light zone middle part is higher than first light emitting component's luminance, and the operating current of second branch road is greater than the operating current of first branch road, make the luminance that is located the second light emitting component that sends out light zone edge be greater than the luminance that is located the first light emitting component that sends out light zone middle part, make the luminance that sends out light zone edge the same or similar the same with the luminance that sends out light zone middle part, thereby the homogeneity of display luminance has been guaranteed, and then the homogeneity of display luminance has been guaranteed, the use comfort of product has been improved.
Additional aspects and advantages of the present application will be set forth in part in the description which follows, or may be learned by practice of the present application.
Drawings
The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of an embodiment of a light emitting circuit according to the present application;
FIG. 2 is a schematic diagram of another embodiment of a light emitting circuit according to the present application;
FIG. 3 is a schematic diagram of another embodiment of a light emitting circuit according to the present application;
FIG. 4 is a block diagram of an embodiment of a display according to the present application.
Wherein, the correspondence between the reference numbers and the part names of fig. 1 to fig. 4 is:
the display comprises a first branch 10, a first light-emitting element 11, a first sub-circuit 12, a second branch 20, a second light-emitting element 21, a second sub-circuit 22, a circuit board 31, a first branch board 32, a second branch board 33, a first sensor 40, a second sensor 50, a controller 60 and a display 100.
Detailed Description
In order that the above objects, features and advantages of the present application can be more clearly understood, the present application will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.
The following discussion provides a number of embodiments of the application. While each embodiment represents a single combination of applications, the various embodiments of the disclosure may be substituted or combined in any combination, and thus, the disclosure is intended to include all possible combinations of the same and/or different embodiments of what is described. Thus, if one embodiment comprises A, B, C and another embodiment comprises a combination of B and D, then this application should also be considered to comprise an embodiment that comprises A, B, C, D in all other possible combinations, although this embodiment may not be explicitly recited in the text below.
As shown in fig. 1, an embodiment of the first aspect of the present application provides a light emitting circuit including: a first branch 10 and a second branch 20.
The first branch 10 comprises a plurality of first light emitting elements 11. (in the following embodiments, the X-th branch includes a plurality of sub-circuits connected in parallel, so that the light emitting elements of each branch cannot be completely 'connected in series')
The second branch 20 comprises a plurality of second light emitting elements 21.
The working current of the first branch 10 is smaller than that of the second branch 20, the first light emitting elements 11 and the second light emitting elements 21 form a light emitting region, the first light emitting elements 11 are located in the middle of the light emitting region, and the second light emitting elements 21 are located at the edge of the light emitting region.
According to the light-emitting circuit, due to the superposition effect of the first light-emitting element 11 and the light-emitting elements on the two adjacent sides, the brightness of the middle of the light-emitting area is higher than that of the first light-emitting element 11, the working current of the second branch circuit 20 is larger than that of the first branch circuit 10, the brightness of the second light-emitting element 21 positioned at the edge of the light-emitting area is larger than that of the first light-emitting element 11 positioned in the light-emitting area, the brightness of the edge of the light-emitting area is the same as or approximately the same as that of the middle of the light-emitting area, the brightness uniformity of the backlight module is guaranteed, and the use.
As shown in fig. 2, in one embodiment of the present application, the first light emitting elements 11 of the first branch 10 are connected in series with each other, and the first light emitting elements 21 of the second branch 20 are connected in series with each other.
In this embodiment, in the first branch, the currents of the first light emitting elements connected in series with each other are the same, which ensures that the brightness of each first light emitting element is the same; in a similar way, in the second branch circuit, the currents of the second light-emitting elements which are connected in series are the same, and the brightness of each second light-emitting element is ensured to be the same, so that the brightness uniformity of the backlight module is ensured, and the use comfort level of the product is improved.
In one embodiment of the present application, as shown in fig. 2, the output of the first branch 10 is connected to the output of the second branch 20.
In this embodiment, the first branch 10 and the second branch 20 share one output terminal, which reduces the layout of one line, thereby increasing the space for layout of lines.
As shown in fig. 2, in an embodiment of the present application, the first branch circuit 10 includes a plurality of first sub-circuits 12, and the first light emitting elements 11 on each of the first sub-circuits 12 are connected in series; the second branch 20 comprises a plurality of second sub-circuits 22, and the first light emitting elements 21 on each second sub-circuit 22 are connected in series.
In this embodiment, the first branch 10 is divided into a plurality of first sub-circuits 12, and when the first light emitting element 11 has a problem, only the sub-circuit where the first light emitting element is located needs to be replaced, so that the operation is convenient and fast, the overhaul speed of the product is increased, the use comfort of the product is improved, and the market competitiveness of the product is further improved. Similarly, the second branch circuit 20 is divided into a plurality of second sub-circuits 22, when the second light-emitting element 21 fails, only the sub-circuit where the second branch circuit is located needs to be replaced, so that the operation is convenient and fast, the overhaul speed of the product is increased, the use comfort of the product is improved, and the market competitiveness of the product is further improved.
As shown in fig. 2, in one embodiment of the present application, a first sub-circuit 12 and a second sub-circuit 22 are integrated on one circuit board 31, and a first light emitting element 11 and a second light emitting element 21 are disposed on the circuit board 31.
In this embodiment, integrate first sub-circuit 12 and second sub-circuit 22 on a circuit board 31 and constitute a lamp strip, a plurality of lamp strips splice and constitute backlight unit's light source, when first light emitting component 11 and second light emitting component 21 on this circuit board 31 go wrong, only need change its circuit board 31 at place, convenient and fast has improved the maintenance speed of product to the use comfort of product has been improved, and then the market competition of product has been improved.
In an alternative embodiment of the present application, as shown in fig. 2, the circuit board 31 has a long strip shape, the second light emitting elements 21 are located at two ends of the long strip of the circuit board 31, and the first light emitting element 11 is located in the middle of the long strip of the circuit board 31; that is, the second sub-circuit 22 is connected in series to the second light emitting elements 21 at two ends of the strip-shaped circuit board 31, and the first sub-circuit 12 is connected in series to the first light emitting element 11 at the middle position of the strip-shaped circuit board 31.
As shown in fig. 3, in one embodiment of the present application, the first sub-circuit 12 (not shown in fig. 3) is integrated on the first branch circuit board 32 (not shown in fig. 3), and the second sub-circuit 22 (not shown in fig. 3) is integrated on the second branch circuit board 33. The positions marked 21 in the figure are not correct.
In this embodiment, the light-emitting circuit only includes two branches, simple structure, and convenient manufacturing to the production efficiency of product has been improved, and then has reduced the production manufacturing cost of product, has increased the market competition of product.
In one embodiment of the present application, the first light emitting element is a light emitting diode, and/or the second light emitting element is a light emitting diode.
In the embodiment, the light emitting diode has the advantages of high luminous efficiency, low power consumption, long service life, easiness in control, no maintenance, safety, environmental friendliness and the like.
An embodiment of the second aspect of the present application provides a backlight module including any one of the light emitting circuits described above.
The backlight module that this application second aspect provided, luminous even, luminance is even, has guaranteed the use comfort of product.
The display 100 provided by the embodiment of the third aspect of the present application includes the backlight module.
The display 100 provided by the third aspect of the present application displays uniformly, and ensures the comfort level of the product.
As shown in fig. 4, in one embodiment of the present application, the display 100 further includes: a first sensor 40, a second sensor 50, and a controller 60.
The first sensor 40 detects optical information at the edge of the light emitting area of the backlight module in real time and sends a first electric signal.
The second sensor 50 detects optical information inside the light emitting region of the backlight module in real time and sends a second electrical signal.
The controller 60 receives the first electrical signal and the second electrical signal, and adjusts the current of the first branch 10 or the second branch 20 of the backlight module according to the first electrical signal and the second electrical signal.
In this embodiment, the optical information at the edge of the light emitting region and the optical information at the middle of the light emitting region are monitored in real time, and when the optical information at the edge of the light emitting region is different from the optical information at the edge of the light emitting region, the controller 60 adjusts the current of the first branch 10 or the second branch 20, so that the optical information at the edge of the light emitting region is the same as the optical information at the edge of the light emitting region, thereby ensuring the uniformity of the backlight module. In addition, the optical information includes the intensity of light, the brightness of light, and the like.
Embodiments of a fourth aspect of the present application provide a display, including a light emitting circuit, where the light emitting circuit includes a first branch and a second branch; the first branch circuit comprises a plurality of first light-emitting elements, and the second branch circuit comprises a plurality of second light-emitting elements; the first light-emitting elements and the second light-emitting elements form a light-emitting area, the first light-emitting elements are located in the middle of the light-emitting area, and the second light-emitting elements are located at the edge of the light-emitting area.
In one embodiment of the present application, the display further comprises: the first sensor detects optical information at the edge of the luminous zone in real time and sends a first electric signal; the second sensor detects optical information in the light emitting area in real time and sends a second electric signal; and the controller receives the first electric signal and the second electric signal and adjusts the current of the first branch or the second branch according to the first electric signal and the second electric signal.
The application provides a display, because the superposition of luminous circuit's first light emitting component and adjacent both sides light emitting component, the luminance that sends out light zone middle part is higher than first light emitting component's luminance, and the operating current of second branch road is greater than the operating current of first branch road, make the luminance that is located the second light emitting component that sends out light zone edge be greater than the luminance that is located the first light emitting component that sends out light zone middle part, make the luminance that sends out light zone edge the same or similar the same with the luminance that sends out light zone middle part, thereby the homogeneity of display luminance has been guaranteed, and then the homogeneity of display luminance has been guaranteed, the use comfort of product has been improved.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be exhaustive. And obvious variations or modifications of this invention are intended to be covered by the scope of the invention as expressed herein.
In this application, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. In the present application, the terms "connected" and "fixed" should be understood in a broad sense, and for example, "connected" may be connected through wires or signals. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (11)
1. The utility model provides a light-emitting circuit, is applied to backlight unit, its characterized in that includes:
a first branch including a plurality of first light emitting elements; and
a second branch including a plurality of second light emitting elements;
the working current of the first branch circuit is smaller than that of the second branch circuit, the first light-emitting elements and the second light-emitting elements form a light-emitting area, the first light-emitting elements are located in the middle of the light-emitting area, and the second light-emitting elements are located at the edge of the light-emitting area.
2. The lighting circuit according to claim 1,
the first light-emitting element is a light-emitting diode, and/or the second light-emitting element is a light-emitting diode; the output end of the first branch is connected with the output end of the second branch.
3. The lighting circuit according to claim 1,
the first branch includes a plurality of first sub-circuits and the second branch includes a plurality of second sub-circuits.
4. The lighting circuit according to claim 3,
a said first sub-circuit and a said second sub-circuit are integrated on a circuit board.
5. The lighting circuit according to claim 4,
the circuit board is in a strip shape, the second sub-circuits are connected in series with the second light-emitting elements positioned at two ends of the strip-shaped circuit board, and the first sub-circuits are connected in series with the first light-emitting elements positioned in the middle of the strip-shaped circuit board.
6. The lighting circuit according to claim 3,
the first sub-circuit is integrated on a first branch circuit board, and the second sub-circuit is integrated on a second branch circuit board.
7. The lighting circuit according to claim 1,
the first light emitting elements of the first branch are connected in series, and the second light emitting elements of the second branch are connected in series.
8. A backlight module comprising the light emitting circuit according to any one of claims 1 to 7.
9. A display comprising the backlight module of claim 8.
10. The display of claim 9, further comprising:
the first sensor detects optical information at the edge of a light emitting area of the backlight module in real time and sends a first electric signal;
the second sensor detects optical information in a light emitting area of the backlight module in real time and sends a second electric signal; and
and the controller receives the first electric signal and the second electric signal and adjusts the current of the first branch or the second branch of the backlight module according to the first electric signal and the second electric signal.
11. The display is characterized by comprising a light-emitting circuit, a first light-emitting diode and a second light-emitting diode, wherein the light-emitting circuit comprises a first branch circuit and a second branch circuit; the first branch comprises a plurality of first light emitting elements, and the second branch comprises a plurality of second light emitting elements; the first light-emitting elements and the second light-emitting elements form a light-emitting area, the first light-emitting elements are located in the middle of the light-emitting area, and the second light-emitting elements are located at the edge of the light-emitting area;
the display further includes:
the first sensor detects optical information at the edge of the luminous zone in real time and sends a first electric signal;
a second sensor that detects optical information inside the light emitting region in real time and transmits a second electrical signal; and
a controller that receives the first and second electrical signals and adjusts the current of the first or second branch according to the first and second electrical signals.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922176273.2U CN211181603U (en) | 2019-12-06 | 2019-12-06 | Light-emitting circuit, backlight module and display |
| PCT/CN2020/101618 WO2021109576A1 (en) | 2019-12-06 | 2020-07-13 | Light-emitting circuit, backlight module and display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922176273.2U CN211181603U (en) | 2019-12-06 | 2019-12-06 | Light-emitting circuit, backlight module and display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211181603U true CN211181603U (en) | 2020-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922176273.2U Active CN211181603U (en) | 2019-12-06 | 2019-12-06 | Light-emitting circuit, backlight module and display |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN211181603U (en) |
| WO (1) | WO2021109576A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002109936A (en) * | 2000-09-28 | 2002-04-12 | Sanyo Electric Co Ltd | Flat light source device and display device |
| KR101176531B1 (en) * | 2005-05-31 | 2012-08-24 | 삼성전자주식회사 | Backligh system and liquid crystal display apparatus employing the same |
| CN102022628B (en) * | 2009-09-21 | 2012-07-18 | 高基贸易股份有限公司 | Light-emitting diode lighting device |
| CN101655639B (en) * | 2009-09-29 | 2011-07-20 | 上海交通大学 | Side light type LCD backlight module comprising non-uniform linear light source |
| CN101956935A (en) * | 2010-07-30 | 2011-01-26 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
-
2019
- 2019-12-06 CN CN201922176273.2U patent/CN211181603U/en active Active
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- 2020-07-13 WO PCT/CN2020/101618 patent/WO2021109576A1/en active Application Filing
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| WO2021109576A1 (en) | 2021-06-10 |
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