Novel liquid crystal display module structure applying glass-based material

Abstract

The invention provides a novel liquid crystal display module structure applying a glass-based material, and belongs to the technical field of micro-display backlight. Comprising a display part, a connecting part, a glass-based light-emitting part and a supporting and protecting part which are sequentially arranged from top to bottom, and the display part is used for presenting images; the connecting part is made of a transparent bonding material and is used for fitting and connecting parts; the glass-based light-emitting component takes glass as a substrate, contains components capable of realizing light diffusion and color conversion, and is provided with a light-emitting chip; the supporting and protecting component is used for supporting and protecting the internal structure. According to the novel liquid crystal display module structure applying the glass-based material, the novel liquid crystal display module structure is constructed by adopting the glass-based material, so that the assembly process is simplified, the cost is reduced, the influence of temperature and humidity changes is reduced, and the environmental reliability is improved; and meanwhile, better light diffusion and color conversion are realized by utilizing the glass QD diffusion plate and the like, so that the display effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of microdisplay backlight technology, and in particular to a novel liquid crystal display module structure using glass-based materials. Background Art

[0002] In the field of liquid crystal display, Mini LED backlight display technology is booming. Figure 1 As shown in the figure, the module structure of traditional Mini LED backlight applications usually involves first soldering the Mini LED chip on a PCB or glass-based circuit board to form a light board, then assembling the light board into the backboard, and then stacking optical film materials such as a diffusion plate and QD film to form a backlight source with uniform brightness, and finally assembling it with LCD glass to form a liquid crystal display module.

[0003] However, the above-mentioned traditional structure has many disadvantages. On the one hand, when the components are stacked on each other, they need to be fixed with the help of tape or buckle structure, which not only affects the overall frame design and thickness of the product, but also increases the material cost and makes the assembly process more complicated. On the other hand, due to the large differences in the materials used in the components and the different thermal expansion coefficients, when the temperature or humidity changes, the components will generate interaction forces due to different degrees of thermal expansion and contraction. In a limited space, this force will cause product defects and even cause reliability failure problems, seriously affecting the performance and service life of the LCD display module. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the purpose of the present invention is to provide a new type of liquid crystal display module structure using glass-based materials. By using glass-based materials to construct a new liquid crystal display module structure, the assembly process is simplified, the cost is reduced, the impact of temperature and humidity changes is reduced, and the environmental reliability is improved. At the same time, a glass QD diffuser plate is used to achieve better light diffusion and color conversion, thereby improving the display effect.

[0005] To achieve the above object, the present invention provides the following solutions: A new type of liquid crystal display module structure using glass-based materials, including a display component, a connecting component, a glass-based light-emitting component and a supporting and protective component arranged in sequence from top to bottom, wherein the display component is used to present images; the connecting component is a transparent adhesive material used for bonding and connecting components; the glass-based light-emitting component uses glass as a substrate, contains components that can achieve light diffusion and color conversion, and is provided with a light-emitting chip; the supporting and protective component is used to support and protect the internal structure.

[0006] Preferably, the display component is a liquid crystal panel, and the liquid crystal panel is connected to the glass-based light-emitting component through the connecting component.

[0007] Preferably, the connecting component is an OCR layer or an OCA layer, the top end of the connecting component is connected to the bottom end of the liquid crystal panel, and the bottom end of the connecting component is connected to the top end of the glass-based light-emitting component.

[0008] Preferably, the OCR layer is an optically transparent resin, and the OCA layer is an optically transparent adhesive, both of which are used to fill and bond gaps between adjacent components to achieve optically transparent connection.

[0009] Preferably, the glass-based light-emitting component includes a glass QD diffuser plate and several groups of light-emitting chips, the glass QD diffuser plate is doped with diffusion particles and red and green QD quantum dots, the top of the glass QD diffuser plate is connected to the connecting component, the bottom of the glass QD diffuser plate is connected to an adhesive layer, the bottom of the adhesive layer is connected to the top of the light-emitting chip, and the bottom of the light-emitting chip is provided with a wiring layer.

[0010] Preferably, the light-emitting chip is a Micro LED chip without a substrate and having a thickness less than 15 μm.

[0011] Preferably, the diffusion particles are one or more of titanium oxide, cerium oxide and zirconium oxide.

[0012] Preferably, the supporting protection component is a protective glass, the protective glass is placed under the glass-based light-emitting component, and a reflective bonding layer is provided between the protective glass and the glass-based light-emitting component, and the reflective bonding layer connects the protective glass to the routing layer in the glass-based light-emitting component.

[0013] Preferably, the reflective adhesive layer connects the protective glass and the routing layer through a high-viscosity optically transparent adhesive, and the reflective function of the reflective adhesive layer is achieved by one of the following methods, specifically: doping the optically transparent adhesive with a high-concentration and high-refractive index material; adding a layer of PET material or a reflective film with a reflective function to the optically transparent adhesive layer; or coating a reflective layer on the surface of the protective glass.

[0014] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects: (1) The glass QD diffusion plate provided by the present invention is doped with diffusion particles such as zirconium oxide and red and green QD quantum dots, and is matched with a substrate-free Micro LED chip with a thickness of less than 30 μm, which can achieve excellent light diffusion and precise color conversion, making the picture color more vivid and the brightness more uniform, significantly improving the display quality of the liquid crystal display module.

[0015] (2) The present invention uses the OCR layer or OCA layer as a connecting component to achieve an optically transparent connection, so that the liquid crystal panel and the glass-based light-emitting component fit closely together; the protective glass is connected to the wiring layer through a reflective adhesive layer to provide support and protection for the internal structure. This structural design is not only compact and reasonable, but also can effectively resist water and oxygen erosion, reduce the impact of temperature and humidity changes on various components, greatly enhance the stability and environmental reliability of the module structure, and reduce the occurrence of adverse phenomena and reliability failure problems.

[0016] (3) The present invention abandons auxiliary fixing structures such as tape and buckles in traditional structures, reducing material costs; it simplifies the assembly process, reduces the cumbersome procedures caused by complex fixing structures, and improves production efficiency. In addition, the structural design effectively improves product quality and reduces subsequent maintenance costs, and has significant advantages in cost control and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 This is a schematic diagram of the module structure of the traditional application of Mini LED backlight; Figure 2 A schematic diagram of a novel liquid crystal display module structure using glass-based materials according to the present invention; Description of reference numerals: 1. LCD panel; 2. Connecting parts; 3. Glass QD diffuser plate; 4. Light-emitting chip; 5. Adhesive layer; 6. Routing layer; 7. Protective glass; 8. Reflective adhesive layer. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Embodiment 1 like Figure 2As shown, the present invention provides a novel liquid crystal display module structure using glass-based materials, including a display component, a connecting component, a glass-based light-emitting component and a supporting and protecting component arranged in sequence from top to bottom.

[0022] The display component is a liquid crystal panel 1 (Panel), which is used to present images. The liquid crystal panel 1 is the core component for realizing image display in the display module. It modulates the light transmission intensity and color by controlling the orientation of liquid crystal molecules, thereby converting electrical signals into image information visible to people.

[0023] The connecting component 2 is an OCR layer or an OCA layer. When the connecting component 2 is an OCR layer, the OCR layer is an optically transparent resin, which can fill and bond the gap between the bottom end of the liquid crystal panel 1 and the top end of the glass-based light-emitting component in a liquid state, and achieve a stable and highly transparent optical connection after curing. It has good flexibility and fit, can effectively reduce interface reflection and scattering, and improve the contrast and clarity of the display module; when the connecting component 2 is an OCA layer, the OCA layer is an optically transparent glue in the form of a solid film, and firmly bonds the liquid crystal panel 1 and the glass-based light-emitting component through its own viscosity. It has the characteristics of high transmittance and low haze, and has good weather resistance, and can maintain stable optical properties and bonding strength for a long time.

[0024] The glass-based light-emitting component includes a glass QD diffuser plate 3 and several groups of light-emitting chips 4. The glass QD diffuser plate 3 is doped with diffusion particles (one or more of titanium oxide, cerium oxide, and zirconium oxide) and red and green QD quantum dots. Its top is connected to the connecting component 2, and its bottom is connected to the bonding layer 5. The function of the glass QD diffuser plate 3 is to diffuse and homogenize the light emitted by the light-emitting chip 4, so that the light is emitted more evenly. At the same time, the QD quantum dots therein can realize color conversion and improve the color saturation and vividness of the display screen. The presence of diffusion particles enhances the scattering effect of light and further improves the uniformity of light. The bonding layer 5 is used to connect the glass QD diffuser plate 3 and the light-emitting chip 4 to ensure a stable physical connection between the two. The light-emitting chip 4 is a Micro LED chip without a substrate and with a thickness of less than 15μm, and a wiring layer 6 is provided at its bottom. As a light-emitting element, the Micro LED chip can emit high-brightness and high-contrast light, providing a high-quality backlight source for liquid crystal display. The wiring layer 6 is used to realize the electrical connection of the Micro LED chip and transmit current so that it can emit light normally.

[0025] It is worth noting that the Micro LED chip used in the present invention is significantly different from the traditional Mini LED backlight. The Micro LED chip is thinner, while the traditional Mini LED chip is more than 100μm thick. It is more conducive to using the discontinuity filling of the colloid when connecting between glass; its size is also smaller, which reduces the cost. Moreover, the Micro LED chips are arranged more closely, which makes the mixing distance shorter and the thickness of the entire module can be thinner. Of course, if MiniLED chips are used to construct the module structure of the present invention, it is also within the scope of protection of the present invention, which provides more options for actual production and meets different cost and performance requirements.

[0026] The supporting protection component is a protective glass 7, which is placed under the glass-based light-emitting component, and a reflective bonding layer 8 is provided between the protective glass 7 and the glass-based light-emitting component, and the reflective bonding layer 8 connects the protective glass 7 with the wiring layer 6 in the glass-based light-emitting component. The protective glass 7 plays a role in supporting and protecting the internal structure, preventing the internal components from being hit and damaged by external forces, and can also block and reflect light to a certain extent, reducing light leakage. The reflective bonding layer 8 can not only firmly bond the protective glass 7 to the wiring layer 6, but also reflect light, improve the utilization rate of light, and further improve the brightness of the display module.

[0027] In addition, the back of the protective glass 7 is designable, and the appearance can be designed in terms of color and surface treatment. Therefore, the protective glass 7 can be directly used as an appearance part of a complete product such as a TV or display screen. Such an improvement has multiple advantages. On the one hand, it reduces additional appearance parts and reduces production costs; on the other hand, the protective glass can improve the aesthetics of the product, enhance the overall texture of the product, improve the product grade, and thus increase the added value of the product, making it more advantageous in market competition.

[0028] According to the above content, the reflective adhesive layer 8 plays a connecting and reflecting role in the entire liquid crystal display module structure. First, the protective glass 7 is connected to the wiring layer 6 in the glass-based light-emitting component using a high-viscosity optical transparent glue to ensure the stability of the module structure. This optical transparent glue has good bonding properties and can fit the two components tightly while ensuring efficient transmission of light and reducing light loss caused by connection. At the same time, the reflective function of the reflective adhesive layer 8 is achieved by the following methods, specifically: (1) Add high concentrations of high-refractive index materials such as titanium oxide and zirconium oxide to the optically transparent adhesive. Materials such as titanium oxide and zirconium oxide have a high refractive index. When light is irradiated to the adhesive layer, these high-refractive index materials will cause the light to be reflected and refracted multiple times inside the adhesive layer, thereby changing the propagation direction of the light and reflecting the originally leaked light back into the module, thereby improving the utilization rate of light and enhancing the brightness of the display module.

[0029] (2) Add a layer of PET material or reflective film with reflective function to the optically transparent adhesive layer. PET material or reflective film has good reflective performance and can effectively reflect light. By adding it to the adhesive layer, a reflective barrier can be set up inside the module to block light leakage, so that more light can be reflected back to the light-emitting area of ​​the liquid crystal display module, thereby improving the display effect. At the same time, this method can select PET materials or reflective films with different reflectivity according to different needs, which has strong flexibility.

[0030] (3) Plating a reflective layer on the surface of the protective glass 7. By plating a metal reflective layer or a dielectric reflective layer on the surface of the protective glass 7, the reflective ability of the protective glass 7 can be significantly improved. This reflective layer can reflect light back into the module, reduce light loss, and improve the contrast and brightness of the display module. At the same time, the reflective layer coating method can also enhance the wear resistance and corrosion resistance of the protective glass 7 and extend the service life of the display module.

[0031] Working principle: When the liquid crystal display module is working, the external power supply provides current to the light-emitting chip 4 through the wiring layer 6, and the Micro LED chip without substrate and less than 30μm in thickness emits blue light. The blue light is irradiated onto the glass QD diffuser plate 3, where the doped diffusion particles (one or more of titanium oxide, cerium oxide, and zirconium oxide) scatter the light, achieve light diffusion and homogenization, and make the light distribution more uniform. At the same time, the red and green QD quantum dots in the glass QD diffuser plate 3 absorb the blue light energy, emit red and green light, and mix with the remaining blue light to form rich colors. The light processed by the glass QD diffuser plate 3 is transmitted to the liquid crystal panel 1 through the optically transparent connection of the connecting component 2. The liquid crystal panel 1 controls the orientation of the liquid crystal molecules according to the received electrical signal, thereby modulating the transmittance intensity and color of the light, and finally presents the image seen by people. In the whole process, the protective glass 7 not only provides mechanical support and physical protection for the internal structure, but the reflective adhesive layer 8 can also reflect part of the light that may leak back to the inside of the module, thereby improving the utilization rate of light and enhancing the display effect.

[0032] Therefore, by adopting the above-mentioned new type of liquid crystal display module structure using glass-based materials, a new liquid crystal display module structure is constructed by using glass-based materials to simplify the assembly process, reduce costs, reduce the impact of temperature and humidity changes, and improve environmental reliability. At the same time, a glass QD diffuser plate is used to achieve better light diffusion and color conversion, thereby improving the display effect.

[0033] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A new type of liquid crystal display module structure using glass-based materials, characterized in that: It includes a display component, a connecting component, a glass-based light-emitting component and a supporting and protecting component which are arranged in sequence from top to bottom. The display component is used to present images; the connecting component is a transparent adhesive material used for bonding and connecting components; the glass-based light-emitting component uses glass as a substrate, contains components that can achieve light diffusion and color conversion, and is provided with a light-emitting chip; the supporting and protecting component is used to support and protect the internal structure.

2. According to claim 1, a new type of liquid crystal display module structure using glass-based materials is characterized in that: The display component is a liquid crystal panel, and the liquid crystal panel is connected to the glass-based light-emitting component through the connecting component.

3. According to claim 2, a new type of liquid crystal display module structure using glass-based materials is characterized in that: The connecting component is an OCR layer or an OCA layer, the top end of the connecting component is connected to the bottom end of the liquid crystal panel, and the bottom end of the connecting component is connected to the top end of the glass-based light-emitting component.

4. A novel liquid crystal display module structure using glass-based materials according to claim 3, characterized in that: The OCR layer is an optically transparent resin, and the OCA layer is an optically transparent adhesive, both of which are used to fill and bond the gaps between adjacent components to achieve an optically transparent connection.

5. The novel liquid crystal display module structure using glass-based materials according to claim 3 is characterized in that: The glass-based light-emitting component includes a glass QD diffuser plate and several groups of light-emitting chips. The glass QD diffuser plate is doped with diffusion particles and red and green QD quantum dots. The top of the glass QD diffuser plate is connected to the connecting component, and the bottom of the glass QD diffuser plate is connected to an adhesive layer. The bottom end of the adhesive layer is connected to the top of the light-emitting chip, and the bottom end of the light-emitting chip is provided with a wiring layer.

6. The novel liquid crystal display module structure using glass-based materials according to claim 5, characterized in that: The light-emitting chip is a Micro LED chip without a substrate and with a thickness less than 15 μm.

7. The novel liquid crystal display module structure using glass-based materials according to claim 5, characterized in that: The diffusion particles are one or more of titanium oxide, cerium oxide and zirconium oxide.

8. The novel liquid crystal display module structure using glass-based materials according to claim 1, characterized in that: The supporting protection component is a protective glass, which is placed under the glass-based light-emitting component. A reflective bonding layer is provided between the protective glass and the glass-based light-emitting component, and the reflective bonding layer connects the protective glass to the wiring layer in the glass-based light-emitting component.

9. The novel liquid crystal display module structure using glass-based materials according to claim 8, characterized in that: The reflective adhesive layer connects the protective glass and the wiring layer through a high-viscosity optical transparent adhesive, and the reflective function of the reflective adhesive layer is achieved by one of the following methods, specifically: doping high-concentration and high-refractive index materials in the optical transparent adhesive; adding a layer of PET material or reflective film with reflective function in the optical transparent adhesive layer; and coating a reflective layer on the surface of the protective glass.

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