Technical structure with multi-layer stacking display function

Through a multi-layer stacked display structure, regional dimming and light domain isolation technology are used to solve the problem of light crosstalk in the light guide plate, achieve a high-contrast display effect without light-isolating black lines, and improve the functional integration and visual experience of the display module.

CN120690102APending Publication Date: 2025-09-23HUBEI LIANXIN DISPLAY TECH CO LTD
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Patent Information

Application Number
CN202510907907.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-02
Publication Date
2025-09-23

AI Technical Summary

Technical Problem

In the existing technology, the display module of single-layer color film + light-isolating foam + side-emitting light guide plate requires light-isolating material between the light guide plates, resulting in light crosstalk and black lines on the display interface, which cannot reflect the integrity of the interface.

Method used

It adopts a multi-layer stacked display structure, including color film, upper light isolation layer, upper light guide plate, optical film, lower light isolation layer, lower light guide plate and PCB and its electronic component layer. Through regional dimming technology and light domain isolation, independent control of the upper and lower light guide plates is achieved. Combined with color gamut zoning and gradient optical isolation, light collimation and high contrast are ensured.

Benefits of technology

It achieves optical matching between the functional area and the background area, improves functional integration and visual experience, and has a display effect without light-isolating black lines, with higher user interface application value.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a technical structure with a multi-layer stacking display function, and belongs to the field of multi-layer stacking display, and the technical structure with the multi-layer stacking display function comprises a multi-layer stacking display module, the multi-layer stacked display module is composed of a color film, an upper light insulation layer, an upper light guide plate, an optical film, a lower light insulation layer, a lower light guide plate, a PCB and an electronic component layer of the PCB. The color film, the upper light insulation layer, the upper light guide plate, the optical film, the lower light insulation layer, the lower light guide plate, the PCB and the electronic component layer of the PCB are sequentially arranged from top to bottom. Compared with the prior art, the method has the advantages that through the double-layer independent display architecture, the icons and the graphs in the areas except the icons can be fused together, the icons and the graphs except the icons can be independently controlled, and the better display effect without light-insulation black lines is achieved.
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Description

Technical Field

[0001] The present invention belongs to the technical field of multi-layer stacked display, and in particular relates to a technical structure with a multi-layer stacked display function. Background Art

[0002] The current mainstream side-emitting display modules mainly use a single-layer color film + light-isolating foam material + side-emitting light guide plate to perform interface interaction of the display panel. The problem with this technology is that light-isolating material is required between the light guide plates to prevent light from crossing between the light guide plates. In this mode, when the light guide plate emits light, the display interface shows black lines due to the projection of light, resulting in each touch area icon being displayed independently, and the display interface uses thick or thin black lines to distinguish each display interface, which cannot reflect the integrity of the interface. In order to solve the above bottleneck, the present invention proposes a technical structure with multi-layer stacked display function. Summary of the Invention

[0003] The purpose of the present invention is to provide a technical structure with multi-layer stacking display function to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a technical structure with a multi-layer stacked display function, comprising a multi-layer stacked display module, wherein the multi-layer stacked display module is composed of a color film, an upper light isolation layer, an upper light guide plate, an optical film, a lower light isolation layer, a lower light guide plate, a PCB and its electronic component layer, and the color film, the upper light isolation layer, the upper light guide plate, the optical film, the lower light isolation layer, the lower light guide plate, the PCB and its electronic component layer are arranged in sequence from top to bottom.

[0005] Preferably, a plurality of function key areas and a background image are provided on the color film, wherein the background image is spread over the color film.

[0006] Preferably, the upper light-isolating layer is specifically assembled at the bottom of the color film and is used to isolate the light of the upper light guide plate.

[0007] Preferably, the upper light guide plate is provided with a plurality of air avoidance areas, wherein the air avoidance areas correspond to the function key areas; wherein: the upper light guide plate adopts two forms of design with or without optical dot design in the corresponding function key area, and cooperates with the edge aperture structure to effectively suppress light crosstalk; at the same time, the upper light guide plate is equipped with a color film and adopts regional dimming technology to realize independent control of function icons and areas other than icons, so that different areas of the same upper film can be displayed together or separately, thereby achieving various forms of display effects.

[0008] Preferably, the surface layer of the optical film is provided with a plurality of light-transmitting areas, and the light-transmitting areas correspond to the function key areas. The bottom of the optical film is provided with connecting rib supports and partition grooves that match the lower light-isolating layer; wherein the light-transmitting areas can adopt a hole structure, transparent material or other light-transmitting materials, and the light-transmitting areas are dynamically adjusted according to the material, refractive index and installation tolerance of the upper light guide plate and the lower light guide plate. The graphic structure of the light-transmitting area is consistent with the pattern structure of the function key area on the color film to ensure the collimation of light.

[0009] Preferably, the lower light-isolating layer is provided with an embedded light guide plate fixing groove, and the embedded light guide plate fixing groove matches the lower light guide plate, wherein: the depth of the embedded light guide plate fixing groove is greater than the thickness of the lower light guide plate; the upper light-isolating layer and the lower light-isolating layer are both composed of flexible materials, have toughness, and have a stress buffer rib structure design.

[0010] Preferably, a plurality of independent light guide plates are provided on the lower light guide plate, and the independent light guide plates correspond to the light-transmitting areas; wherein: the lower light guide plate adopts a modular array layout, and each function key area is configured with an independent light guide plate, and each lower light guide plate adopts high-density dots at the function key area of ​​the corresponding color film to enhance the reflection efficiency, which can improve the brightness of the key and make the key area have high contrast; wherein: there is a lower light isolation layer between the upper light guide plate and the lower light guide plate to separate the light domain, which can realize independent control of the two light guide plates, the upper light guide plate is used to light up the area other than the icon, and the lower light guide plate is used to light up the function icon; when the product is in working state, the upper and lower layers can be lit at the same time, and there is a high contrast between the function keys and the background, so that customers can easily distinguish the button functions.

[0011] Preferably, a plurality of light sources are provided on the PCB and its electronic component layer, and the light sources are arranged at different heights according to the position and pattern of the independent light guide plate, wherein: the height of the lower layer of the light source is 0.4-1.2 mm; the height of the upper layer is 0.6-3 mm.

[0012] The technical effects and advantages of the present invention are as follows: Through a dual-layer independent display architecture, this structure can integrate icons and graphics in areas other than icons, allowing both icons and graphics to be independently controlled, presenting a superior display effect without light-isolating black lines. This structure achieves optical matching between functional areas and non-functional areas within a single module, and has three core advantages over traditional single-layer display modules: 1. Improved functional integration: The innovative double-layer light guide system can simultaneously display function buttons and background information, achieving a more beautiful integrated display effect; 2. Optimized visual experience: Combining color gamut control and gradient optical isolation technology, the human-computer interface achieves visual performance at the level of professional displays.

[0013] 3. It provides more prominent user interface applications for market customers and enhances the core competitiveness of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a combination diagram of multi-layer stacked display modules; Figure 2 is a cross-sectional view of a multi-layer stacked display module; Figure 3 An exploded view of the multi-layer stacked display module structure; Figure 4 This is a diagram of a traditional display module combination; Figure 5 is a cross-sectional view of a conventional display module; Figure 6 This is an exploded view of the traditional display module structure; Figure 7 Schematic diagram of the color film structure of the present invention; Figure 8 Schematic diagram of the structure of the upper light-isolating layer of the present invention; Figure 9 Schematic diagram of the structure of the upper light guide plate of the present invention; Figure 10 Schematic diagram of the optical film structure of the present invention; Figure 11 Schematic diagram of the structure of the lower light-isolating layer of the present invention; Figure 12 Schematic diagram of the structure of the lower light guide plate of the present invention; Figure 13 This is a schematic diagram of the structure of the PCB and its electronic components layer according to the present invention; Figure 14 Schematic diagram of the conventional color film structure of the present invention; Figure 15 Schematic diagram of the conventional light-isolating layer structure of the present invention; Figure 16 Schematic diagram of the structure of a conventional light guide plate of the present invention; Figure 17 Schematic diagram of the traditional PCB and its electronic component layer structure of the present invention.

[0015] In the figure: 101, color film; 102, upper light-isolating layer; 103, upper light guide plate; 104, optical film; 105, lower light-isolating layer; 106, lower light guide plate; 107, PCB and its electronic component layer; 201, traditional color film; 202, traditional light-isolating layer; 203, traditional light guide plate; 204, traditional PCB and its electronic component layer; 301, function key area; 302, background image; 303, air avoidance area; 304, light-transmitting area; 305, independent light guide plate; 306, light source. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0017] The present invention provides Figure 1-17 The technical structure of a multi-layer stacked display function shown includes a multi-layer stacked display module; Specifically, the multi-layer stacked display module is composed of a color film 101, an upper light isolation layer 102, an upper light guide plate 103, an optical film 104, a lower light isolation layer 105, a lower light guide plate 106, a PCB and its electronic component layer 107. The color film 101, the upper light isolation layer 102, the upper light guide plate 103, the optical film 104, the lower light isolation layer 105, the lower light guide plate 106, the PCB and its electronic component layer 107 are arranged in sequence from top to bottom.

[0018] Specifically, the color film 101 is provided with a plurality of function key areas 301 and a background image 302 , wherein the background image 302 is spread over the color film 101 .

[0019] Specifically, the upper light-isolating layer 102 is assembled at the bottom of the color film 101 and is used to block the light of the upper light guide plate 103 .

[0020] Specifically, a plurality of air avoidance areas 303 are provided on the upper light guide plate 103, wherein the air avoidance areas 303 correspond to the function key areas 301; wherein: the upper light guide plate 103 adopts two forms of design with or without optical dot design in the corresponding function key area 301, and cooperates with the edge aperture structure to effectively suppress light crosstalk; at the same time, the upper light guide plate 103 is equipped with a color film 101, and adopts regional dimming technology to realize that function icons and areas other than icons can be independently controlled, so that different areas of the same upper film can be displayed together or separately, thereby achieving various forms of display effects.

[0021] Specifically, the surface of the optical film 104 is provided with a plurality of light-transmitting areas 304, and the light-transmitting areas 304 correspond to the function key areas 301. The bottom of the optical film 104 is provided with connecting rib supports and partition grooves that match the lower light-isolating layer 105; wherein the light-transmitting areas 304 can adopt a hole structure, transparent material or other light-transmitting materials, and the light-transmitting areas 304 are dynamically adjusted according to the material, refractive index and installation tolerance of the upper light guide plate 103 and the lower light guide plate 106. The graphic structure of the light-transmitting area 304 is consistent with the pattern structure of the function key area 301 on the color film 101 to ensure the collimation of light.

[0022] Specifically, the lower light isolation layer 105 is provided with an embedded light guide plate fixing groove, and the embedded light guide plate fixing groove matches the lower light guide plate 106, wherein: the depth of the embedded light guide plate fixing groove is greater than the thickness of the lower light guide plate 106; the upper light isolation layer 102 and the lower light isolation layer 105 are both composed of flexible materials, have toughness, and have a stress buffer rib structure design.

[0023] Specifically, a plurality of independent light guide plates 305 are provided on the lower light guide plate 106, and the independent light guide plates 305 correspond to the light-transmitting area 304; wherein: the lower light guide plate 106 adopts a modular array layout, and each function key area is configured with an independent light guide plate 305, and each lower light guide plate 106 adopts high-density dots at the function key area 301 of the corresponding color film 101 to enhance the reflection efficiency, which can improve the brightness of the key and make the key area have high contrast; wherein: there is a lower light isolation layer 105 between the upper light guide plate 103 and the lower light guide plate 106 for light domain isolation, which can realize independent control of the two layers of light guide plates, the upper light guide plate 103 is used to light up areas other than icons, and the lower light guide plate 106 is used to light up function icons; when the product is in working state, the upper and lower layers can be lit at the same time, and there is a high contrast between the function keys and the background, so that customers can easily distinguish the button functions.

[0024] Specifically, a plurality of light sources 306 are provided on the PCB and its electronic component layer 107 , and the light sources 306 are arranged at different heights according to the position and pattern of the independent light guide plate 305 , wherein: the lower layer height of the light source 306 is 0.4-1.2 mm; the upper layer height is 0.6-3 mm. Example

[0025] Traditional display modules such as Figure 4-6 As shown, it is composed of a traditional color film 201, a traditional light isolation layer 202, a traditional light guide plate 203, and a traditional PCB and its electronic component layer 204. The traditional color film 201, the traditional light isolation layer 202, the traditional light guide plate 203, and the traditional PCB and its electronic component layer 204 are arranged in order from top to bottom. The traditional color film 201 is only provided with a function key display, and other areas are black or white. The traditional light isolation layer 202 is a flexible material and is used to block the upper color or background light. The traditional light guide plate 203 adopts a dot array arrangement, and the product emits light evenly without distinguishing brightness adjustment. The light source in the traditional PCB and its electronic component layer 204 is set at the same height to illuminate the pattern; in this mode, when the light guide plate is illuminated, the display interface shows black lines due to the projection of light, resulting in independent display of icons in each touch area, and the display interface uses thick or thin black lines to distinguish each display interface, which cannot reflect the integrity of the interface; In this structure, a background image 302 is added to the color film 101 to display the entire picture, and the upper light-isolating layer 102 is a flexible material, which is used to block the upper color or background light. An upper light guide plate 103 and a lower light guide plate 106 are added, wherein the upper light guide plate 103 is provided with an air avoidance area 303, and the air avoidance area 303 is for air avoidance or sparse processing in the dot arrangement, which can make the pattern transition soft. A light-transmitting area 304 is provided in the optical film 104, and the bottom is supported by connecting ribs and a partition groove to cooperate with the lower light-isolating layer 105, and the embedded light guide plate fixing groove in the lower light-isolating layer 105 cooperates with the lower light guide plate 106, and the lower The upper light guide plate 106 adopts an independent light guide plate 305, and a lower light isolation layer 105 is set between the upper light guide plate 103 and the lower light guide plate 106 to isolate the light domain, so that independent control of the two light guide plates can be achieved. At the same time, the light sources 306 on the PCB and its electronic component layer 107 are not at the same height. The light source 306 is set at a suitable height according to the pattern of illuminating different areas; through the double-layer independent display architecture, the icons and the graphics of the areas outside the icons can be integrated together, so that the icons and the graphics outside the icons can be independently controlled, presenting a better display effect without light-isolating black lines.

[0026] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A technical structure for a multi-layer stacked display function, comprising a multi-layer stacked display module, characterized in that: The multi-layer stacked display module comprises a color film (101), an upper light-isolating layer (102), an upper light guide plate (103), an optical film (104), a lower light-isolating layer (105), a lower light guide plate (106), a PCB and an electronic component layer (107), wherein the color film (101), the upper light-isolating layer (102), the upper light guide plate (103), the optical film (104), the lower light-isolating layer (105), the lower light guide plate (106), the PCB and the electronic component layer (107) are arranged in sequence from top to bottom.

2. The technical structure of a multi-layer stacked display function according to claim 1, characterized in that: The color film (101) is provided with a plurality of function key areas (301) and a background image (302), wherein the background image (302) is spread over the color film (101).

3. The technical structure of a multi-layer stacked display function according to claim 2, characterized in that: The upper light-isolating layer (102) is specifically assembled on the bottom of the color film (101).

4. The technical structure of a multi-layer stacked display function according to claim 3, characterized in that: A plurality of air-avoidance areas (303) are provided on the upper light guide plate (103), wherein the air-avoidance areas (303) correspond to the function key areas (301).

5. The technical structure of a multi-layer stacked display function according to claim 4, characterized in that: The surface layer of the optical film (104) is provided with a plurality of light-transmitting areas (304), the light-transmitting areas (304) corresponding to the function key areas (301), and the bottom of the optical film (104) is provided with connecting rib supports and partition grooves that match the lower light-isolating layer (105).

6. The technical structure of a multi-layer stacked display function according to claim 5, characterized in that: The lower light isolation layer (105) is provided with an embedded light guide plate fixing groove, which matches the lower light guide plate (106), wherein the depth of the embedded light guide plate fixing groove is greater than the thickness of the lower light guide plate (106).

7. The technical structure of a multi-layer stacked display function according to claim 6, characterized in that: A plurality of independent light guide plates (305) are provided on the lower light guide plate (106), and the independent light guide plates (305) correspond to the light-transmitting areas (304).

8. The technical structure of a multi-layer stacked display function according to claim 7, characterized in that: A plurality of light sources (306) are provided on the PCB and its electronic component layer (107), and the light sources (306) are arranged at different heights according to the position and pattern of the independent light guide plate (305), wherein the lower layer height of the light source (306) is 0.4-1.2 mm, and the upper layer height is 0.6-3 mm.

9. The technical structure of a multi-layer stacked display function according to claim 8, characterized in that: The upper light-isolating layer (102) and the lower light-isolating layer (105) are both made of flexible material and have toughness, and are provided with a stress buffering rib structure.

10. The technical structure of a multi-layer stacked display function according to claim 9, characterized in that: The light-transmitting area (304) may be made of a hole structure, a transparent material or other light-transmitting materials.