High-performance low-cost glass diffusion plate

Abstract

The utility model discloses a glass diffusion plate with high performance and low cost. The glass diffusion plate comprises a glass substrate; the plurality of raised pattern structures are fixedly arranged on the light emitting surface of the glass substrate; the connecting structures are adhered to the tops of the pattern structures; the optical film is arranged on the connecting structure and is fixedly connected with the glass substrate through the connecting structure; and the sealing structure is arranged between the glass substrate and the optical film in a manner of surrounding the circumferential direction of the glass substrate and the optical film and is used for isolating external water vapor. According to the patterned glass, conventional fitting is replaced by local fitting, and the optical glue avoids gaps of the patterned structure and is effectively attached to the top of the patterned structure, so that the problem that the original patterned structure cannot play a role in light diffusion due to the fact that the surface of the patterned glass is flatly filled after the optical glue is coated is solved; according to the utility model, glue is coated on the top of the pattern, so that the pattern structure on the surface of the glass can play a role in diffusion, and the light is uniformly diffused and spread over the whole surface of the glass.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of diffusion plate, specifically relates to a high performance low cost glass diffusion plate. BACKGROUND

[0002] The backlight module is one of the key components of the liquid crystal display panel, and its function is to supply sufficient brightness and uniformly distributed light source for the display, and the backlight module mainly comprises: LED light source, diffusion plate and optical film piece, wherein the diffusion plate generally prints diffusion ink (particles) on the glass surface, thereby playing the role of diffusing point light source (i.e. LED light source) into area light source, and with the development of optical technology, it is found that the pattern structure on the glass surface can also play the role of light diffusion, thereby using the pattern structure on the glass surface to replace the traditional diffusion ink printing process on the glass surface, which can greatly save the manufacturing cost of the diffusion plate and improve the efficiency.

[0003] However, when the optical film piece is attached to the pattern structure glass through optical glue (adhesive film), the uniformity of the brightness presented is not particularly obvious, and the analysis shows that the transmittance of the optical glue is close to the glass (the refractive index is similar to the glass, about 1.41), so the pattern groove on the surface of the pattern structure glass is filled with the optical glue during the attachment process, forming a similar flat structure, so that the pattern structure cannot play the diffusion role.

[0004] In summary, the existing glass diffusion plate formed by printing diffusion ink on the glass surface has the problems of poor adhesion of diffusion ink, easy aging problems such as yellowing and falling off, and the scheme of reducing or replacing the use of diffusion ink by preparing a pattern structure on the glass surface to improve the brightness, uniformity and service life of the diffusion plate has the problem that the pattern structure is filled and flattened by the optical glue after full attachment with the optical film piece, thereby weakening or losing the diffusion effect of the pattern structure. UTILITY MODEL CONTENTS

[0005] The utility model aims at the problems of the glass diffusion plate made by printing diffusion ink on the glass or setting the pattern structure, and designs a high performance low cost glass diffusion plate, which effectively solves the above problems.

[0006] To achieve the above purpose, the utility model is realized by the following technical scheme:

[0007] The utility model designs a high performance low cost glass diffusion plate, which comprises the following:

[0008] The glass substrate has opposite light-incoming surface and light-outgoing surface;

[0009] A plurality of convex pattern structures are fixedly arranged on the light-emitting surface of the glass substrate to play a role of light diffusion.

[0010] A plurality of connecting structures are adhesively arranged on the top of the pattern structures.

[0011] An optical film is arranged on the connecting structure to achieve fixed connection with the glass substrate through the connecting structure.

[0012] And a sealing structure is arranged between the glass substrate and the optical film to isolate external water vapor.

[0013] Further, a high-performance and low-cost glass diffusion plate comprises: a light diffusion layer arranged on the light-emitting surface of the glass substrate corresponding to the grooves between the pattern structures; and the thickness of the light diffusion layer is set to 45-70 μm.

[0014] Specifically, the diffusion layer is formed by coating diffusion ink on the glass substrate and curing.

[0015] Further, a high-performance and low-cost glass diffusion plate comprises: the pattern structure is integrally formed with the glass substrate.

[0016] Further, a high-performance and low-cost glass diffusion plate comprises: the pattern structure is set as a polygonal pattern structure.

[0017] Further, a high-performance and low-cost glass diffusion plate comprises: the connecting structure is set as a long strip structure, which is adhesively arranged on the top of the pattern structure along the length direction of the pattern structure.

[0018] Specifically, the long strip connecting structure is formed on the top of the pattern structure by screen printing optical glue.

[0019] Further, a high-performance and low-cost glass diffusion plate comprises: the connecting structure is set as a dot structure, and a plurality of dot connecting structures are adhesively arranged on the top of the pattern structure along the length direction of the pattern structure at equal intervals.

[0020] Specifically, a plurality of dot connecting structures are formed on the top of the pattern structure by dispensing.

[0021] Further, a high-performance and low-cost glass diffusion plate comprises: the connecting structure is formed by printing or dispensing optical glue on the top of the pattern structure.

[0022] Specifically, the density of the optical glue is 0.96-0.98 g / cm 3, and the viscosity of the optical glue is 600-45000 mPa·s. Preferably, the viscosity of the optical glue can ensure the bonding effect of the optical film, and the flowability of the glue is strong when the viscosity is too low, and the glue is not suitable for coating when the viscosity is too high, and it is not easy to form a connecting structure. After the optical film is bonded to the connecting structure, it can be cured at 40-80 DEG C for 40-60 minutes, so that the optical film and the glass substrate are fixedly connected.

[0023] Further, a high-performance and low-cost glass diffusion plate: the light-incident surface of the glass substrate is provided with a scattering pattern, which is used to increase the light diffusion effect.

[0024] Further, a high-performance and low-cost glass diffusion plate: the optical film is selected from a brightness enhancement film, a light diffusion film or a COPP film with gain effect.

[0025] Further, a high-performance and low-cost glass diffusion plate: the width of the sealing structure is not more than 10.0 mm.

[0026] The beneficial effects of the utility model are:

[0027] (1) the high-performance and low-cost glass diffusion plate designed by the utility model is locally applied with optical glue on the top of the pattern structure to form a connecting structure and optical glue film, that is, the utility model replaces the conventional bonding process by local bonding, and the optical glue is effectively attached to the top of the pattern structure by avoiding the groove position between the pattern structures, thereby avoiding the problem that the pattern glass surface is filled and flattened after the optical glue is coated, and the original pattern structure cannot play a light diffusion role, and the utility model is designed to coat glue on the top of the pattern, so that the pattern structure on the glass surface can still play a diffusion role, thereby uniformly dispersing light throughout the glass surface.

[0028] (2) the utility model adopts a glass substrate with a pattern structure to replace flat glass to manufacture a glass diffusion plate, which can reduce or replace the use of diffusion ink, save the cost of diffusion ink while improving the brightness, uniformity and service life of the diffusion plate, thereby reducing the manufacturing cost of the diffusion plate.

[0029] (3) the utility model adopts silk screen printing optical glue or point glue method to form a long strip or point connecting structure, and the connecting structure can realize the non-continuous bonding of the glass substrate and the optical film, which can fix the optical film and avoid the pattern structure being completely filled with optical glue, thereby weakening or losing the light diffusion effect.

[0030] (4) The utility model discloses still set up the sealing structure at the edge of glass substrate and optical film piece, it guarantees the complete attachment between optical film piece and glass substrate, also play the sealing effect, prevent the entry of water vapor, and utilize the sealing structure to stick optical film piece and glass substrate further improve the structural stability of the glass diffusion plate whole. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be to the embodiment description needed to use the drawing briefly introduced, obviously, the following description in the drawing is only some embodiments of the utility model, for the person skilled in the art comes, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0032] Figure 1 The structural diagram of the high-performance low-cost glass diffusion plate designed for the embodiment 1 of the utility model;

[0033] Figure 2 The top view of the glass diffusion plate designed for the embodiment 1;

[0034] Figure 3 The structural diagram of the glass diffusion plate designed for the comparative example 1;

[0035] Figure 4 The structural diagram of the glass diffusion plate designed for the comparative example 2.

[0036] Mark in the drawing: 1-glass substrate, 2-pattern structure, 3-connection structure, 4-optical film piece, 5-sealing structure, 6-groove, 7-optical glue layer, 11-light entrance surface, 12-light exit surface. DETAILED DESCRIPTION

[0037] The technical scheme in the embodiments of the utility model will be described clearly and completely in the following in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. The description of the following at least one exemplary embodiment is actually only illustrative, by no means as any limitation on the utility model and its application or use. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making the creative labor are within the scope of the utility model protection.

[0038] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," "right," "top," and "bottom," etc., indicating orientation or positional relationships, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," etc., are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this utility model described herein can be implemented in orders other than those illustrated or described herein.

[0039] Example 1

[0040] like Figures 1-2 As shown, this embodiment 1 designs a high-performance, low-cost glass diffusion plate, which includes the following:

[0041] A glass substrate 1 has a light-incident surface 11 and a light-exit surface 12 facing each other;

[0042] Several raised patterned structures 2 are fixedly disposed on the light-emitting surface 12 of the glass substrate 1 to play the role of light diffusion; specifically, the patterned structures 2 and the glass substrate 1 are integrally formed, that is, the glass substrate 1 can be regarded as a glass substrate with patterned structures 2.

[0043] Several connecting structures 3 are configured as dot-shaped connecting structures. Optical adhesive is applied to the top of the patterned structure 2 at equal intervals along its length direction by dispensing, thereby forming several dot-shaped connecting structures 3. At this time, there is no optical adhesive in the grooves 6 between the patterned structures 2.

[0044] The optical film 4, which is a brightness enhancement film, is disposed on the connection structure 3 and is fixedly connected to the glass substrate 1 through a number of point-shaped connection structures 3.

[0045] And a sealing structure 5, which is circumferentially disposed between the glass substrate 1 and the optical film 4 to isolate external moisture, and the width of the sealing structure 5 does not exceed 10.0 mm.

[0046] Comparative Example 1

[0047] like Figure 3 As shown, Comparative Example 1 provides a glass diffusion plate, which includes the following:

[0048] a glass substrate 1 having opposite light-incident surface 11 and light- emergent surface 12;

[0049] a plurality of protruding pattern structures 2 fixedly arranged on the light- emergent surface 12 of the glass substrate 1 for light diffusion;

[0050] and an optical film 4 in the form of a brightness enhancement film, which is fully attached to the glass substrate 1 by forming an optical adhesive layer 7 on the glass substrate 1 with the pattern structures 2.

[0051] Comparative Example 2

[0052] As shown in Figure 4 Comparative Example 2 provides a glass diffusion plate comprising:

[0053] a glass substrate 1 having opposite light-incident surface 11 and light- emergent surface 12;

[0054] and an optical film 4 in the form of a brightness enhancement film, which is fully attached to the glass substrate 1 by forming an optical adhesive layer 7 on the light- emergent surface 12 of the glass substrate 1.

[0055] Test: The glass diffusion plates of Example 1, Comparative Example 1 and Comparative Example 2 were subjected to light intensity test, and the results showed that:

[0056] ① The brightness of the glass diffusion plate of Example 1 was increased by about 3.0% compared with that of Comparative Example 1, and the reason was that the optical film 4 and the glass substrate 1 of Example 1 were locally attached by a plurality of dot-like connecting structures 3, and the optical adhesive was not filled in the grooves 7 between the pattern structures 2, thus avoiding the problem that the diffusion effect of the pattern structures 2 was weakened or lost due to the filling of the optical adhesive in the grooves 7 between the pattern structures 2 in Comparative Example 1. Therefore, the brightness of the glass diffusion plate designed in Example 1 was obviously improved compared with that of Comparative Example 1, and the use of optical adhesive was also reduced, which could save cost.

[0057] ② The brightness of the glass diffusion plate of Example 1 was increased by about 5.0% compared with that of Comparative Example 2, mainly because of the gain effect brought by the pattern structures 2 arranged in Example 1 to assist light diffusion.

[0058] ③ The uniformity of the glass diffusion plate of Example 1 was increased by about 5.0% compared with that of Comparative Example 1, and the uniformity of the glass diffusion plate of Example 1 was increased by about 10.0% compared with that of Comparative Example 2.

[0059] Embodiment 2

[0060] Embodiment 2 designs a high-performance low-cost glass diffusion plate, which comprises the following:

[0061] a glass substrate 1 having opposite light-incident surface 11 and light-emitting surface 12;

[0062] a plurality of raised pattern structures 2 fixedly arranged on the light-emitting surface 12 of the glass substrate 1 for light diffusion; the light-incident surface 11 of the glass substrate 1 is provided with scattering patterns which can be used to increase the light diffusion effect; in addition, a light diffusion layer can also be provided on the light-emitting surface 12 in the grooves 6 between the pattern structures 2;

[0063] a plurality of connecting structures 3 arranged in the form of long strips, which are arranged on the top of the pattern structures 2 in the length direction by screen printing optical glue, thereby forming a plurality of long strip-shaped connecting structures 3; at this time, there is no optical glue in the grooves 6 between the pattern structures 2;

[0064] optical film 4, which is a brightness enhancement film, is arranged on the connecting structure 3 and is fixedly connected to the glass substrate 1 through a plurality of dot-shaped connecting structures 3;

[0065] and a sealing structure 5 which is arranged between the glass substrate 1 and the optical film 4 around the circumference of the two to isolate external moisture, and the width of the sealing structure 5 is not more than 10.0mm.

[0066] The above is only used to explain the preferred embodiment of the present application, and is not used to limit the present application. Any obvious changes or variations derived from the technical solutions of the present application are still within the protection scope of the present application.

Claims

1. A high performance low cost glass diffusion panel characterized in that, The glass diffusion plate comprises the following: a glass substrate (1) having opposite light-incoming surface (11) and light-outcoming surface (12); a plurality of convex pattern structures (2) fixedly arranged on the light-outcoming surface (12) of the glass substrate (1) for light diffusion; a plurality of connecting structures (3) adhesively arranged on the top of the plurality of pattern structures (2); an optical film (4) arranged on the connecting structures (3) and fixedly connected with the glass substrate (1) through the connecting structures (3); and a sealing structure (5) arranged between the glass substrate (1) and the optical film (4) along the circumferential direction of the two for isolating external moisture.

2. The high performance low cost glass diffusion panel of claim 1, wherein, The glass diffusion plate further comprises a light diffusion layer arranged on the light-outcoming surface (12) of the glass substrate (1) corresponding to the grooves (6) between the pattern structures (2), and the thickness of the light diffusion layer is set to 45-70 μm.

3. The high performance low cost glass diffusion panel of claim 1, wherein, The pattern structures (2) are integrally formed with the glass substrate (1).

4. The high performance low cost glass diffusion panel according to claim 1 or 3, characterized in that, The pattern structures (2) are set as polygonal pattern structures.

5. The high performance low cost glass diffusion panel of claim 1, wherein, The connecting structures (3) are set as long strip structures and are adhesively arranged on the top of the pattern structures (2) along the length direction of the pattern structures (2).

6. The high performance low cost glass diffuser panel of claim 1, wherein, The connecting structures (3) are set as dot structures, and a plurality of dot connecting structures (3) are adhesively arranged on the top of the pattern structures (2) along the length direction of the pattern structures (2) at equal intervals.

7. A high performance low cost glass diffusion panel according to claim 5 or 6, characterized in that, The connecting structures (3) are formed by printing or dispensing optical glue on the top of the pattern structures (2).

8. The high performance low cost glass diffuser panel of claim 1, wherein, The light-incoming surface (11) of the glass substrate (1) is provided with scattering patterns for increasing light diffusion effect.

9. The high performance low cost glass diffusion panel of claim 1, wherein, The optical film (4) is selected from brightness enhancement film, light diffusion film or COPP film with gain effect.

10. The high performance low cost glass diffuser panel of claim 1, wherein, The width of the sealing structure (5) is set to not more than 10.0 mm.

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