Anti-light-leakage protection panel structure for ink screen front light

Abstract

The utility model relates to the field of ink screens, and discloses an ink screen front light leakage prevention protection panel structure which comprises an ink screen display module. The protection panel is arranged above the ink screen display module, and an annular notch is formed in the outer edge of the protection panel; the light shielding layer is arranged on the annular notch, the upper portion of the light shielding layer is flush with the top of the protection panel, and the light shielding layer comprises a black ink layer used for preventing light leakage and a specific color ink layer which are arranged from bottom to top. The problem of front light leakage can be effectively solved, meanwhile, the problems existing in the prior art are solved, light shading can be effectively achieved through the black ink layer, meanwhile, the notch is formed in the outer edge of the protection panel, the notch is matched with the black ink layer, the technology is simple and efficient, the light shading effect is good, a PET film is avoided, cost is reduced, and the application prospect is wide. And the problem that the PET film is difficult to align is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of e-ink screens, and particularly relates to a front-light light-leakage prevention protection panel structure for an e-ink screen. Background Technique

[0002] An e-ink screen, also known as an electronic paper display, is a new type of display technology. Its display principle is that charged white particles and black particles in microcapsules move up and down under the action of an electric field, thereby presenting different grayscale images. The e-ink screen has many unique advantages. For example, its display effect is close to that of traditional paper, it does not reflect light in sunlight, the reading experience is comfortable, and the energy consumption is extremely low, only consuming power when the page is refreshed. Therefore, it has been widely used in fields such as e-book readers and electronic tags.

[0003] With the continuous expansion of the application scenarios of e-ink screens, especially the increasing demand for use in some low-light or lightless environments, the front-light technology has emerged. The front-light system is usually set below or on the side of the e-ink screen, and the light is evenly projected onto the e-ink screen through components such as a light guide plate and a light source to improve the display brightness of the screen in the dark and enhance visibility.

[0004] However, there is a relatively serious light-leakage problem in the current front-light structure of e-ink screens. During actual use, especially when the ambient light is dim and the front light is turned on, when observing the e-ink screen from certain angles, it will be found that light leaks out from the edge or non-display area of the screen. This not only seriously affects the display effect, reduces the contrast and clarity of the image, but also causes interference to the user's vision and greatly reduces the reading experience. For example, when reading an e-book at night, light leakage may cause a bright halo to appear at the edge of the screen, distracting the user's attention and even causing visual fatigue after long-term use.

[0005] In order to solve the problem of light leakage in the front light of e-ink screens, there have been some related technical attempts. For example, a protection panel is set on the surface of the e-ink screen display module, then a black ink layer is set on the outer edge of the protection panel, and then an ink layer of a specific color is set above the black ink layer. This specific color is determined according to the production requirements of the e-ink screen. For example, if the production requirement is that the outer edge of the e-ink screen shows white, then the specific color is white. Finally, a layer of PET protective film is pasted on the entire protection panel. This method of preventing light leakage has some defects. For example, it is difficult to accurately align the PET film, and the PET film is easy to scratch, has a short lifespan, and is costly.

[0006] There are also some methods that improve the structural design of the light guide plate. For example, special optical textures or microstructures are used to control the propagation direction of light, making it more concentratedly projected onto the display area. However, this method can only reduce the light leakage phenomenon to a certain extent, cannot fundamentally eliminate light leakage, and will increase the manufacturing process difficulty and cost of the light guide plate.

[0007] Another common practice is to add light-shielding materials or light-shielding tapes between the e-ink screen and the front light assembly. Although this method can block light leakage within a certain range, due to the difficulty in ensuring the fitting accuracy of the light-shielding materials, gaps or bubbles are likely to appear at the fitting positions, resulting in local light leakage still existing. Moreover, the light-shielding materials themselves may affect the uniformity of the front light, making the screen display brightness uneven and further affecting the display quality.

[0008] In addition, there are some solutions to reduce light leakage by optimizing the light source layout or using special optical films. However, these solutions are either not ideal in actual effects or will introduce other new problems, such as increasing power consumption and reducing light transmittance. In summary, there are still many limitations in the existing technology for solving the problem of front light leakage of e-ink screens, and there is an urgent need for a more effective, reliable and cost-controllable light leakage prevention protection panel structure to overcome these problems. Utility Model Content

[0009] The purpose of the present utility model is to provide a light leakage prevention protection panel structure for the front light of an e-ink screen, aiming to solve the problems in the existing technology.

[0010] The present application provides a light leakage prevention protection panel structure for the front light of an e-ink screen, including:

[0011] An e-ink screen display module;

[0012] A protection panel, the protection panel is arranged above the e-ink screen display module, and a circular incision is arranged at the outer edge of the protection panel;

[0013] A light-shielding layer, the light-shielding layer is arranged on the circular incision, the upper part of the light-shielding layer is flush with the top of the protection panel, and the light-shielding layer includes a black ink layer for preventing light leakage and a specific color ink layer arranged from bottom to top.

[0014] Further, the black ink layer is formed by performing no less than 1 black ink coating operation.

[0015] Further, the thickness of the black ink layer is between 5 microns and 20 microns to ensure good light leakage prevention effect and not affect the overall structural thickness.

[0016] Further, the light-shielding layer further includes a transition adhesive layer disposed between the black ink layer and the specific color ink layer, and the transition adhesive layer is used to enhance the bonding force between the two ink layers.

[0017] Further, the protection panel is made of transparent glass material, and its light transmittance is not less than 90% to ensure the display clarity of the ink screen.

[0018] Further, the thickness of the protection panel is between 0.5 mm and 2 mm.

[0019] Compared with the prior art, the present application can effectively solve the problem of front light leakage and overcome the problems existing in the prior art. Through the setting of the black ink layer, light shielding can be effectively achieved. At the same time, by setting a notch on the outer edge of the protection panel and through the cooperation of the notch and the black ink layer, the process is simple and efficient, the light shielding effect is good, the use of PET film is avoided, the cost is reduced, and the problem of difficult alignment of PET film is eliminated. Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of a front light anti-leakage protection panel structure of an ink screen provided by an embodiment of the present invention. Detailed Embodiments

[0021] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0023] In addition, 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 quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0024] In the present utility model, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower horizontal level than the second feature.

[0026] The implementation of the present utility model will be described in detail below in conjunction with specific embodiments.

[0027] Refer to Figure 1 , an ink screen front light anti-light leakage protection panel structure, comprising:

[0028] An ink screen display module 1;

[0029] A protection panel 2, the protection panel 2 is disposed above the ink screen display module 1, and an annular cut is provided at the outer edge of the protection panel 2;

[0030] A light-shielding layer, the light-shielding layer is disposed on the annular cut, the upper part of the light-shielding layer is flush with the top of the protection panel 2, and the light-shielding layer includes a black ink layer 3 for anti-light leakage and a specific color ink layer 4 arranged from bottom to top.

[0031] It should be noted that the black ink used in the black ink layer 3 of this application is a black ink with a light-shielding effect existing in the prior art, and the specific composition thereof will not be elaborated in this application. Furthermore, the specific color ink layer 4 of this application determines the actual color according to the actual product design and production requirements. For example, if the outer edge of the e-ink screen is required to be designed white, then the specific color is white.

[0032] In the prior art, in order to solve the problem of front light leakage of the e-ink screen, a protection panel 2 is provided on the surface of the e-ink screen display module 1, then a black ink layer 3 is provided on the outer edge of the protection panel 2, and then a specific color ink layer is provided above the black ink layer 3. This specific color is determined according to the production requirements of the e-ink screen. For example, if the production requirement is that the outer edge of the e-ink screen shows white, then the specific color is white. Finally, a layer of PET protective film is laminated on the entire protection panel 2. This anti-light-leakage method has some defects. For example, it is difficult to accurately align the PET film, and the PET film is easy to scratch, has a short lifespan, and is costly.

[0033] This application can effectively solve the problem of front light leakage while overcoming the problems existing in the prior art. By setting the black ink layer 3, light shielding can be effectively achieved. At the same time, by providing a cut on the outer edge of the protection panel 2 and through the cooperation of the cut and the black ink layer 3, the process is simple and efficient, the light shielding effect is good, the use of the PET film is avoided, the cost is reduced, and the problem of difficult alignment of the PET film is eliminated.

[0034] Furthermore, the black ink layer 3 is formed by at least 1 black ink coating action.

[0035] Furthermore, the thickness of the black ink layer 3 is between 5 microns and 20 microns to ensure a good anti-light-leakage effect and not affect the overall structural thickness.

[0036] Furthermore, the light shielding layer further includes a transition adhesive layer provided between the black ink layer 3 and the specific color ink layer 4, and the transition adhesive layer is used to enhance the bonding force between the two ink layers.

[0037] Furthermore, the protection panel 2 is made of transparent glass material, and its light transmittance is not less than 90% to ensure the display clarity of the e-ink screen.

[0038] Furthermore, the thickness of the protection panel 2 is between 0.5 mm and 2 mm.

[0039] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0040] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. An ink screen front light anti-light leakage protection panel structure, characterized in that, Including: An e-ink display module; A protection panel, which is arranged above the e-ink display module, and a circular incision is arranged on the outer edge of the protection panel; A light-shielding layer, which is arranged on the circular incision, the upper part of the light-shielding layer is flush with the top of the protection panel, and the light-shielding layer includes a black ink layer for preventing light leakage and a specific-color ink layer arranged from bottom to top.

2. The structure of an ink screen front light anti-light leakage protection panel according to claim 1, characterized in that The black ink layer is formed by at least 1 black ink coating operation.

3. The structure of an ink screen front light anti-light leakage protection panel according to claim 1, wherein, The thickness of the black ink layer is between 5 microns and 20 microns to ensure good light leakage prevention effect without affecting the overall structure thickness.

4. The structure of an ink screen front light anti-light leakage protection panel according to claim 1, characterized in that, The light-shielding layer further includes a transition adhesive layer arranged between the black ink layer and the specific-color ink layer, and the transition adhesive layer is used to enhance the bonding force between the two ink layers.

5. The structure of an ink screen front light anti-light leakage protection panel according to claim 1, characterized in that The protection panel is made of transparent glass material with a light transmittance of not less than 90% to ensure the clarity of the e-ink display.

6. The structure of an ink screen front light anti-light leakage protection panel according to claim 1, characterized in that, The thickness of the protection panel is between 0.5 mm and 2 mm.

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