CN115407553A - Glass diffusion printing dot structure applied to small LED backlight - Google Patents
Glass diffusion printing dot structure applied to small LED backlight Download PDFInfo
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- CN115407553A CN115407553A CN202210983754.8A CN202210983754A CN115407553A CN 115407553 A CN115407553 A CN 115407553A CN 202210983754 A CN202210983754 A CN 202210983754A CN 115407553 A CN115407553 A CN 115407553A
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- Prior art keywords
- printing
- glass
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- plate
- led lamp
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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
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- 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
- G02F1/133605—Direct backlight including specially adapted reflectors
-
- 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
- G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
The invention provides a glass diffusion printing dot structure applied to small LED backlight, which comprises a glass plate, wherein a plurality of groups of printing dots are arranged on the glass plate at intervals, each group of printing dots consists of a plurality of printing dot units, the printing dot units are arranged in concentric circles, a back plate is arranged below the glass plate, a Mini-LED lamp bead is arranged on the back plate, the Mini-LED lamp bead is positioned right below the circle center of the innermost printing dot unit, and the innermost printing dot unit covers the Mini-LED lamp bead. According to the invention, the transparent glass is adopted to replace the diffusion plate, so that the loss of light energy can be reduced, the thickness of the diffusion plate is reduced, the transparent glass printing dots above each Mini-LED lamp bead are in a Newton ring shape, and the problem that light spots of the Mini-LED lamp beads cannot be diffused and increased can be effectively solved.
Description
Technical Field
The invention belongs to the technical field of backlight display, and particularly relates to a glass diffusion printing dot structure applied to small LED backlight.
Background
With the development of display panel technology, people are increasingly pursuing lighter, thinner and larger flexible display screens. The conventional TFT-LCD is a rigid backlight using a glass substrate and a fixed curvature, and thus it cannot satisfy a flexible display. The OLED is a self-luminous device and does not have liquid crystal, so it is easy to implement a flexible display, but it has disadvantages of short lifespan, poor reliability, and high cost, so it cannot implement a large-sized flexible display. Therefore, the Mini-LED has come to the fore, inherits the advantages of high color gamut and high contrast of the OLED, and simultaneously has the advantages of long service life, high reliability, lightness, thinness, large splicing size and the like, but the existing Mini LED backlight module has high processing difficulty, low productivity and high processing cost; in addition, the light intensity at the top end of the Mini-LED lamp bead is large, the light mixing Distance OD (Optical Distance) is usually 10mm, and the Mini-LED backlight zero OD generally adopts a high-haze low-transmittance diffusion plate to shield the lamp shadow so as to homogenize the picture, however, the high-haze low-transmittance diffusion plate causes the loss of partial light energy of the Mini-LED, and the thickness of the diffusion plate is generally more than 1.5mm so as to achieve the effect of shielding the lamp shadow, which does not meet the development requirement of lightness and thinness.
Disclosure of Invention
The invention provides a glass diffusion printing dot structure applied to small LED backlight, which comprises the following steps: the transparent glass is adopted to replace the diffusion plate, so that the loss of light energy can be reduced, the thickness of the diffusion plate is reduced, the transparent glass printing dots above each Mini-LED lamp bead are in a Newton ring shape, and the problem that light spots of the Mini-LED lamp beads cannot be diffused and increased can be effectively solved.
In order to achieve the purpose, the invention provides a glass diffusion printing dot structure applied to a small LED backlight, which comprises a glass plate, wherein a plurality of groups of printing dots are arranged on the glass plate at intervals, each group of printing dots is composed of a plurality of printing dot units, the printing dot units are arranged in concentric circles, a back plate is arranged below the glass plate, a Mini-LED lamp bead is arranged on the back plate, the Mini-LED lamp bead is positioned right below the circle center of the innermost printing dot unit, and the innermost printing dot unit covers the Mini-LED lamp bead.
As a further description of the above technical solution:
the back plate is provided with a reflector plate, and the Mini-LED lamp beads are fixed on the back plate at positions corresponding to openings of the reflector plate.
As a further description of the above technical solution:
the back plate is provided with a plurality of mounting grooves which are arranged in a matrix, and the Mini-LED lamp beads are mounted in the mounting grooves.
As a further description of the above technical solution:
and a group of printing dots are arranged on the glass plate corresponding to the mounting groove.
As a further description of the above technical solution:
the printing dots are formed by printing ink with high reflectivity.
As a further description of the above technical solution:
preferably, the ink is a white ink.
As a further description of the above technical solution:
the glass plate is a transparent glass plate, and the thickness of the transparent glass plate is 0.5-1mm.
As a further description of the above technical solution:
preferably, the thickness of the transparent glass plate is 0.6mm.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that: the transparent glass is adopted to replace a diffusion plate, so that the loss of light energy can be reduced, the thickness of the diffusion plate is reduced, the transparent glass printing mesh points above each Mini-LED lamp bead are in a Newton ring shape, the problem that the light spots of the Mini-LED lamp beads cannot be diffused and increased can be effectively solved, specifically, the Mini-LED lamp beads are surrounded by the innermost printing mesh point units of the printing mesh points, the light passes through about 30% approximately, the rest of the light is reflected back to the back plate, the light is reflected by a reflection sheet of the back plate and is reflected again by the printing mesh point units on the periphery of the Newton ring, and the effect of shielding a lamp shadow is achieved by the reflection, and the light spots are prevented from appearing; the transparent glass plate can achieve the shielding effect of a diffusion plate with the thickness of 1.5-2mm by selecting 0.5-1mm, the Mini-LED backlight module can be thinner, newton's annular printing dots can be used, the size of the central area of the printing dots and the size of the annular distance depend on the light emitting angle of the Mini-LED, and light can be better reflected according to the optical principle.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a glass diffusion printing dot structure applied to a small LED backlight.
Fig. 2 is a light reflection circuit diagram of a glass diffusion printing dot structure applied to a small LED backlight.
Fig. 3 is a schematic view of a printing dot structure in a glass diffusion printing dot structure applied to a small LED backlight.
Fig. 4 is a schematic structural diagram of a back plate in a glass diffusion printing dot structure applied to a small LED backlight.
Illustration of the drawings:
1. a glass plate; 2. printing a dot; 3. a back plate; 31. mounting grooves; 4. Mini-LED lamp bead.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that the terms "upper", "inner", and the like refer to orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally arranged when the products of the present invention are used, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention provides a glass diffusion printing dot structure applied to a small LED backlight, which is characterized by comprising a glass plate 1, wherein a plurality of groups of printing dots 2 are arranged on the glass plate 1, the plurality of groups of printing dots 2 are arranged at intervals, each group of printing dots 2 consists of a plurality of printing dot units, the plurality of printing dot units are arranged in concentric circles, a back plate 3 is arranged below the glass plate 1, a Mini-LED lamp bead 4 is arranged on the back plate 3, the Mini-LED lamp bead 4 is positioned right below the center of the innermost printing dot unit, and the innermost printing dot unit covers the Mini-LED lamp bead 4.
The back plate 3 is provided with a reflector plate, and the Mini-LED lamp beads 4 are fixed on the back plate 3 at positions corresponding to openings of the reflector plate. The reflector plate can be matched with printing screen points to reflect light for multiple times, so that the effect of shielding a lamp shadow is achieved, and light spots are avoided.
The back plate 3 is provided with a plurality of mounting grooves 31, the mounting grooves 31 are arranged in a matrix manner, and the Mini-LED lamp beads 4 are mounted in the mounting grooves 31. The mounting groove reduces the loss of the reflected light beam and restricts the light emitting angle.
The glass plate 1 is provided with a group of printing dots 2 at the positions corresponding to the mounting grooves 31.
The printing dots 2 are formed by printing ink with high reflectivity.
Preferably, the ink is a white ink. Shading can be reduced.
The glass plate 1 is a transparent glass plate, and the thickness of the transparent glass plate is 0.5-1mm.
Preferably, the transparent glass plate has a thickness of 0.6mm. The method comprises the following steps of preparing a transparent glass plate, edging the transparent glass plate, polishing one surface of the transparent glass plate to serve as a light-emitting surface, and polishing the unpolished surface to serve as a mesh point surface; washing the polished transparent glass plate with soft water, and drying with hot air; calculating the light-emitting angle of the Mini-LED lamp bead according to the design requirement, calculating the size of the central area of the printing screen dot and the size of the annular distance according to the light-emitting angle, and then printing the screen dot by using the white high-reflectivity ink through the calculated screen dot.
The working principle is as follows: the transparent glass is adopted to replace a diffusion plate, so that the loss of light energy can be reduced, the thickness of the diffusion plate is reduced, the transparent glass printing mesh points above each Mini-LED lamp bead are in a Newton ring shape, the problem that the light spots of the Mini-LED lamp beads cannot be diffused and increased can be effectively solved, specifically, the Mini-LED lamp beads are surrounded by the innermost printing mesh point units of the printing mesh points, the light passes through about 30% approximately, the rest is reflected back to the back plate, the light is reflected by the reflection sheet of the back plate, and is reflected again by the printing mesh point units on the periphery of the Newton ring (such as the direction of an arrow in figure 2), so that the effect of shielding a lamp shadow is achieved, and the light spots are prevented from appearing; the transparent glass plate can achieve the shielding effect of a diffusion plate with the thickness of 1.5-2mm by selecting 0.5-1mm, the Mini-LED backlight module can be thinner, newton's annular printing dots can be used, the size of the central area of the printing dots and the size of the annular distance depend on the light emitting angle of the Mini-LED, and light can be better reflected according to the optical principle.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (8)
1. The utility model provides a be applied to glass diffusion printing site structure that small-size LED is shaded, a serial communication port, including glass board (1), be provided with multiunit printing site (2) on glass board (1), the multiunit printing site (2) interval sets up, every group printing site (2) comprise a plurality of printing site units, and are a plurality of printing site unit is concentric circles and arranges, glass board (1) below is provided with backplate (3), be provided with Mini-LED lamp pearl (4) on backplate (3), mini-LED lamp pearl (4) are located the most inboard under the printing site unit centre of a circle, the most inboard printing site unit covers Mini-LED lamp pearl (4).
2. The glass diffusion printing dot structure applied to the small LED backlight as claimed in claim 1, wherein a reflector plate is arranged on the back plate (3), and the Mini-LED lamp beads (4) are fixed on the back plate (3) at positions corresponding to openings of the reflector plate.
3. The glass diffusion printing dot structure applied to the small LED backlight as claimed in claim 2, wherein a plurality of mounting grooves (31) are formed in the back plate (3), the mounting grooves (31) are arranged in a matrix, and the Mini-LED lamp beads (4) are mounted in the mounting grooves (31).
4. The glass diffusion printing dot structure applied to the small LED backlight according to claim 3, wherein a group of the printing dots (2) is arranged on the glass plate (1) corresponding to the mounting groove (31).
5. The glass diffusion printing dot structure applied to the small LED backlight as claimed in claim 1, wherein the printing dots (2) are formed by printing with high-reflectivity ink.
6. The glass diffusion printing dot structure applied to the small LED backlight as claimed in claim 5, wherein the ink is white ink.
7. The glass diffusion printing dot structure applied to the small LED backlight as claimed in claim 1, wherein the glass plate (1) is a transparent glass plate, and the thickness of the transparent glass plate is 0.5-1mm.
8. The glass diffusion printing dot structure applied to the small LED backlight as claimed in claim 7, wherein the thickness of the transparent glass plate is 0.6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210983754.8A CN115407553A (en) | 2022-08-16 | 2022-08-16 | Glass diffusion printing dot structure applied to small LED backlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210983754.8A CN115407553A (en) | 2022-08-16 | 2022-08-16 | Glass diffusion printing dot structure applied to small LED backlight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115407553A true CN115407553A (en) | 2022-11-29 |
Family
ID=84159807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210983754.8A Pending CN115407553A (en) | 2022-08-16 | 2022-08-16 | Glass diffusion printing dot structure applied to small LED backlight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115407553A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013011667A (en) * | 2011-06-28 | 2013-01-17 | Dainippon Printing Co Ltd | Optical sheet, surface light source device and image display device |
| CN112666755A (en) * | 2020-12-31 | 2021-04-16 | 常州亚玛顿股份有限公司 | Glass diffusion plate matched with ultrathin backlight structure |
| CN114063206A (en) * | 2021-10-22 | 2022-02-18 | 昆山锦林光电材料有限公司 | Front light plate with micro dot structure and manufacturing process thereof |
-
2022
- 2022-08-16 CN CN202210983754.8A patent/CN115407553A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013011667A (en) * | 2011-06-28 | 2013-01-17 | Dainippon Printing Co Ltd | Optical sheet, surface light source device and image display device |
| CN112666755A (en) * | 2020-12-31 | 2021-04-16 | 常州亚玛顿股份有限公司 | Glass diffusion plate matched with ultrathin backlight structure |
| CN114063206A (en) * | 2021-10-22 | 2022-02-18 | 昆山锦林光电材料有限公司 | Front light plate with micro dot structure and manufacturing process thereof |
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