Display panel with hidden screen effect and manufacturing method thereof

Abstract

The invention discloses a display panel with a hidden screen effect and a manufacturing method thereof. The display screen comprises a semi-permeable membrane and a diffusion membrane which are both of a sheet structure, the diffusion membrane is attached to the first side face of the semi-permeable membrane, the second side face, away from the diffusion membrane, of the semi-permeable membrane is coated with a shading layer, hollowed-out shape patterns are arranged on the shading layer, and a frosted layer is further arranged on the surface of the side, away from the semi-permeable membrane, of the shading layer. The semi-permeable membrane is adopted to replace semi-permeable printing ink in the prior art, the problem that due to the characteristics that the semi-permeable printing ink is high in sensitivity, prone to evaporation, high in manufacturability requirement and the like, the consistency of display panel products is poor is solved, the manufacturing yield is higher, and the production efficiency is higher. Meanwhile, due to the fact that the area of the semipermeable membrane is large, the quality of the semipermeable membrane can be detected through an instrument, and therefore badness can be detected when the semipermeable membrane is fed.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a display panel and a manufacturing method thereof. Background Art

[0002] The structure of the display panel assembly is generally composed of an LED lamp and a display panel. Most of the icons on the panel are white. When touched or clicked, the white icons will glow, just like the effect when a flat ceiling lamp is lit. Since the icons on the panel in the prior art are white, they will be displayed on the surface of the panel even if they are not clicked. Therefore, regardless of whether the icons are lit or not, users can see the icons on the panel, which can easily interfere with the user's vision and make it impossible to accurately judge the state of the machine, affecting the user's experience. Therefore, consumers tend to buy products that hide the icons on the display panel when it is not lit (commonly known as the hidden screen effect in the art), and the icons appear white and glow when the panel is clicked or touched.

[0003] In order to meet this demand, a display panel with a hidden screen effect has appeared on the market. The structure of the existing display panel with a hidden screen effect is as follows: Figure 1 As shown, it includes a frosted transparent substrate 1, on which an opaque pattern silk screen layer 3 and a light shielding layer 2 are printed in sequence, and the light shielding layer 2 is provided with a hollow shape pattern to form a display icon, and then, a semi-transparent ink layer 4 and a diffusion ink layer 5 are sequentially coated on the portion of the corresponding hollow shape pattern on the light shielding layer 2. The semi-transparent ink layer 4 has a lower light transmittance than a general transparent layer, so when the LED light is not illuminated, it can blur the icon and achieve the function of hiding the screen. The diffusion ink layer 5 helps to evenly distribute the light of the LED light.

[0004] However, the display effect of the display panel using the semi-permeable ink layer 4 is greatly affected by the semi-permeable ink. When the semi-permeable ink in the panel is coated too thinly or the color is light, it will cause the icon or font to be easily seen, and it is difficult to distinguish whether the icon is lit or not, and the hidden screen effect is not good. If the semi-permeable ink is coated too thickly or the color is dark, the brightness of the icon will be too low when it is lit, and it will not be able to form a strong color contrast with the panel, which is not easy to see. In actual engineering, it is hoped that the hidden screen effect is good and the brightness is good, so the accuracy of the ink process is relatively high. Therefore, the semi-permeable ink coating process has high requirements for processability. The color of the ink, the strength of the scraper and the size and wear of the screen, the temperature and humidity, the evaporation rate of the ink, etc., will all affect the consistency of the product. Since the semi-permeable ink is very sensitive and has the characteristic of easy evaporation, the dilution ratio of the semi-permeable ink, the printing thickness, the printing pressure, the viscosity of the semi-permeable ink and the storage time will all affect the effect of the semi-permeable ink. Therefore, the existing panels are made of semi-transparent ink and diffusion ink display panels, and the consistency of performance during mass production is difficult to ensure. Different batches and even different products in the same batch will result in different effects, resulting in a relatively low yield, which not only affects the product production delivery time, but also affects the product quality. Summary of the invention

[0005] The object of the present invention is to provide a display panel with a hidden screen effect and a manufacturing method thereof.

[0006] To achieve the above-mentioned purpose, the first aspect of the present invention proposes a display panel with a hidden screen effect, the display panel comprising a semi-permeable membrane and a diffusion membrane, both of which are sheet-like structures, the diffusion membrane is adhered to the first side of the semi-permeable membrane, and the second side of the semi-permeable membrane facing away from the diffusion membrane is coated with a shading layer, the shading layer is provided with a hollow shape pattern, and the surface of the shading layer facing away from the semi-permeable membrane is also provided with a frosted layer.

[0007] Preferably, the frosted layer is frosted oil coated on the light-shielding layer.

[0008] Preferably, it further comprises an opaque silk-screen layer, which is silk-screened on the light-shielding layer and is located between the frosted layer and the light-shielding layer.

[0009] Preferably, the silk-screen layer is arranged in the same row or column as the hollowed-out shape pattern.

[0010] A second aspect of the present invention provides a method for manufacturing a display panel with a hidden screen effect, comprising the following steps:

[0011] S10: providing a semipermeable membrane with a sheet structure as a manufacturing substrate;

[0012] S20: coating a light shielding layer on the first side of the semi-permeable membrane, and forming a hollow shape pattern on the light shielding layer;

[0013] S30: After the light-shielding layer is dried and formed, frosting oil is applied on the light-shielding layer.

[0014] Preferably, the method further comprises the step of attaching a diffusion membrane to the second side surface of the semipermeable membrane.

[0015] Preferably, the step of laminating the diffusion membrane to the second side surface of the semipermeable membrane is performed after step S10 and before step S20, or after step S20 and before step S30, or after step S30.

[0016] Preferably, the method further includes step S25 which is performed after step S20 and before step S30: silk-screening an opaque silk-screen layer on the light-shielding layer.

[0017] The present invention has the following beneficial effects:

[0018] 1. The present invention adopts a semi-permeable membrane to replace the semi-permeable ink, which avoids the problem of poor consistency of display panel products caused by the high sensitivity, easy evaporation and high processability requirements of the semi-permeable ink, and has a higher yield. At the same time, since the semi-permeable membrane has a large area, its quality can be tested by instruments, so defects can be detected when the semi-permeable membrane is received. If semi-permeable ink is used to manufacture display panels, since only icons can transmit light, the light transmittance is low and cannot be detected by instruments, the display panel must be printed before the effect of the panel can be inspected, which will cause the semi-finished products or finished products to be scrapped, and the feeling during manual inspection is different, which will also cause poor consistency in batches.

[0019] 2. Since the semi-permeable membrane is a solid material, it can be used as a manufacturing substrate, instead of using a frosted layer (i.e., the frosted transparent substrate in the background technology) as a manufacturing substrate as in the prior art. On the basis of using the semi-permeable membrane as the manufacturing substrate, the diffusion ink layer can be replaced with a diffusion membrane with better consistency to further improve the product yield.

[0020] 3. The manufacturing method of the display panel provided by the present invention is to use a semi-permeable membrane as a substrate for manufacturing, and can produce a display panel with high consistency and hidden screen effect in a high yield and high efficiency manner. Moreover, using a semi-permeable membrane as a substrate, it is only necessary to apply frosting oil when manufacturing the frosted layer, and the process flow is simple and efficient. The present invention forms a semi-permeable layer and a diffusion layer in a whole piece by laminating a semi-permeable membrane with a diffusion membrane, and there is no need to apply semi-permeable ink and diffusion ink to the hollowed-out shapes and patterns on the light-shielding layer one by one as in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a structural schematic diagram of an existing display panel;

[0022] Figure 2 FIG. 4 is a schematic diagram of the structure of a display panel in an embodiment of the present invention. DETAILED DESCRIPTION

[0023] Embodiments of the present invention are described in detail below, and the examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by reference to the accompanying drawings are exemplary, are intended to be used to explain the present invention, and are not to be construed as limitations of the present invention. Those who do not indicate specific techniques or conditions in the embodiments are carried out according to the techniques or conditions described in the documents in this area or according to the product specification. Those who do not indicate the manufacturer of reagents or instruments used are all conventional products that can be obtained commercially.

[0024] The present invention will now be further described in conjunction with the accompanying drawings and specific implementation methods.

[0025] See also Figure 2 As shown, the display panel of the present invention includes a semi-permeable membrane 30 and a diffusion membrane 40, both of which are sheet structures. The diffusion membrane 40 is attached to the first side of the semi-permeable membrane 30, and the second side of the semi-permeable membrane 30 away from the diffusion membrane 40 is coated with a light-shielding layer 20, and a hollow shape pattern 50 is provided on the light-shielding layer 20 to form an icon. The light-shielding layer 20 is also provided with a frosted layer 10 on the side surface away from the semi-permeable membrane 30. In this embodiment, the frosted layer 10 is frosted oil coated on the light-shielding layer 20. In other embodiments, the frosted layer 10 can be a frosted film attached to the surface of the light-shielding layer 20, but the adhesive layer between the frosted film and the light-shielding layer 20 needs to use a material with good light transmittance to avoid affecting the display performance. In comparison, the present embodiment uses frosted oil to form the frosted layer, and the process flow is simpler and more efficient.

[0026] The panel in this embodiment also includes an opaque silk-screen layer 60, which is silk-screened on the shading layer 20 and is located between the frosted layer 10 and the shading layer 20. Even if the light source is not turned on, the silk-screen layer 60 can be clearly seen, so it can play an indicating role. The silk-screen layer 60 can be set in the same row or column as the hollow shape pattern 50 to correspondingly indicate the hollow shape patterns 50 at different positions.

[0027] The present invention adopts a semi-permeable membrane 30 to replace the semi-permeable ink in the prior art, avoiding the problem of poor consistency of display panel products caused by the high sensitivity, easy evaporation and high processability requirements of the semi-permeable ink, and having a higher manufacturing yield and higher production efficiency. At the same time, since the semi-permeable membrane 30 has a large area, its quality can be tested by instruments, so defects can be detected when the semi-permeable membrane is incoming. If semi-permeable ink is used to manufacture display panels, since only icons can transmit light, the light transmittance is low and cannot be detected by instruments, the display panel must be printed before the effect of the panel can be tested, which will cause the semi-finished product or finished product to be scrapped.

[0028] On the other hand, since the semi-permeable membrane 30 is made of solid material, it can be used as a manufacturing substrate, instead of using a frosted layer (i.e., a frosted transparent substrate in the background technology) as a manufacturing substrate as in the prior art. On the basis of using the semi-permeable membrane 30 as a manufacturing substrate, the diffusion ink layer can be replaced with a diffusion membrane 40 with better consistency, thereby further improving the yield and production efficiency of the product. A whole piece of diffusion membrane 40 has a better effect of uniformly diffusing light, and the diffusion membrane 40 can be directly attached to the semi-permeable membrane 30, while the diffusion ink layer needs to ensure a consistent thickness, and the processability requirements are higher.

[0029] This embodiment also provides a method for manufacturing the display panel with a hidden screen effect, comprising the following steps:

[0030] S10: providing a semipermeable membrane 30 of sheet structure as a manufacturing substrate;

[0031] S20: coating a light shielding layer 20 on a first side surface of the semi-permeable membrane 30, and forming a hollow shape pattern 50 on the light shielding layer 20;

[0032] S30 : After the light shielding layer 20 is dried and formed, frosting oil is applied on the light shielding layer 20 .

[0033] The manufacturing method of the display panel provided in this embodiment uses the semi-permeable membrane 30 as the substrate for manufacturing, and can produce a display panel with high consistency and hidden screen effect in a high yield and high efficiency manner. Moreover, using the semi-permeable membrane 30 as the substrate, only frosting oil needs to be applied when manufacturing the frosted layer, and the process flow is simple and efficient.

[0034] Furthermore, the manufacturing method in this embodiment also includes the step of laminating the diffusion film 40 on the second side of the semipermeable membrane 30. The step of laminating the diffusion film 40 on the second side of the semipermeable membrane 30 can be performed after step S10 and before step S20, or after step S20 and before step S30, or after step S30. The semipermeable membrane 30 is laminated to the diffusion film 40 to form a whole semipermeable layer and a diffusion layer, and there is no need to apply semipermeable ink and diffusion ink to the hollowed-out shapes and patterns on the light shielding layer one by one as in the prior art.

[0035] Furthermore, the manufacturing method in this embodiment further includes step S25 performed before step S30 and after step S20: screen printing an opaque screen printing layer 60 on the light shielding layer 20. The screen printing layer 60 can play an indicating role.

[0036] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and intent of the present invention.

Claims

1. A display panel with a hidden screen effect, characterized in that: The invention comprises a semipermeable membrane and a diffusion membrane, both of which are sheet structures. The diffusion membrane is attached to the first side of the semipermeable membrane, and the second side of the semipermeable membrane away from the diffusion membrane is coated with a light-shielding layer, and a hollow shape pattern is arranged on the light-shielding layer. The surface of the light-shielding layer on the side away from the semipermeable membrane is also provided with a frosted layer.

2. The display panel with hidden screen effect according to claim 1, characterized in that: The frosting layer is frosting oil coated on the light shielding layer.

3. The display panel with hidden screen effect according to claim 1, characterized in that: It also includes a light-proof silk-screen layer, which is silk-screened on the light-shielding layer and is located between the frosted layer and the light-shielding layer.

4. The display panel with hidden screen effect according to claim 3, characterized in that: The silk-screen layer is arranged in the same row or column as the hollowed-out shape pattern.

5. A method for manufacturing a display panel with a hidden screen effect, characterized in that: The steps include: S10: providing a semipermeable membrane with a sheet structure as a manufacturing substrate; S20: coating a light shielding layer on the first side of the semi-permeable membrane, and forming a hollow shape pattern on the light shielding layer; S30: After the light-shielding layer is dried and formed, frosting oil is applied on the light-shielding layer.

6. The method for manufacturing a display panel with a hidden screen effect according to claim 5, characterized in that: The method also includes the step of attaching a diffusion membrane to the second side of the semipermeable membrane.

7. The method for manufacturing a display panel with a hidden screen effect according to claim 6, characterized in that: The step of attaching the diffusion membrane to the second side surface of the semipermeable membrane is performed after step S10 and before step S20, or after step S20 and before step S30, or after step S30.

8. The method for manufacturing a display panel with a hidden screen effect according to claim 5, characterized in that: The method further includes step S25 which is performed after step S20 and before step S30: screen printing a light-proof screen printing layer on the light-shielding layer.

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