A PMOLED multicolor display structure based on white display

By combining a color filter film and a gray-black ink layer, the problems of high cost and limited application range of PMOLED displays are solved, and multi-color display effect is achieved.

CN224581973UActive Publication Date: 2026-07-31SUZHOU XIZESHI ELECTRONIC TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU XIZESHI ELECTRONIC TECHNOLOGY CO LTD
Filing Date
2025-09-08
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing PMOLED displays require custom photomasks and molds, resulting in high costs and limited applicability to various projects, making it difficult to achieve multi-color displays.

Method used

It employs a combination of a color filter film and a gray-black ink layer. The color filter film is bonded to the PMOLED display, the ink layer is bonded to the display, and the gray-black ink layer has a frosted surface, enabling multi-color display.

Benefits of technology

Achieving multi-color display effects without increasing costs, the color filter film is black when not in use and displays color when in use, making it suitable for a variety of projects.

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Abstract

This utility model discloses a PMOLED multicolor display structure based on white display, comprising: a PMOLED display screen and multiple color filter films, wherein the PMOLED display screen displays white text; each color filter film has a first surface and a second surface on its upper and lower sides, the second surfaces of the multiple color filter films are attached to the upper surface of the PMOLED display screen, and a first gap is provided between adjacent color filter films; the first surface of the color filter film is coated with a gray-black ink layer, the second surface of the color filter film is coated with a first color ink layer, the second surface of adjacent color filter films is coated with a second color ink layer, and a second gap is provided between the first color ink layer and the second color ink layer. This utility model achieves multicolor display of PMOLED at low cost without opening new molds, thus saving costs.
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Description

Technical Field

[0001] This utility model relates to the field of semiconductor technology, and in particular to a PMOLED multicolor display structure based on white display. Background Technology

[0002] The description in this section provides only background information related to the disclosure of this utility model and does not constitute prior art.

[0003] OLED, or Organic Light-Emitting Diode, also known as Organic Electroluminescence Display (OELD), is a self-emissive display technology that uses a very thin coating of organic materials and a glass substrate. When an electric current passes through, these organic materials emit light.

[0004] PMOLED stands for Passive Matrix OLED. Existing PMOLED displays are mostly white, green, or other single-color fonts. When two colors need to be displayed on a screen, customization is required, which necessitates two sets of photomasks. This significantly increases the mold costs and unit price, and the product can only be used in customized projects, not in other projects.

[0005] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this utility model and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this utility model. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a PMOLED multicolor display structure based on white display, which addresses the shortcomings of the existing technology.

[0007] This application discloses a PMOLED multicolor display structure based on white display, including: A PMOLED display screen that displays white text; Multiple color filter films are provided, each color filter film having a first surface and a second surface on its upper and lower sides. The second surfaces of the multiple color filter films are attached to the upper surface of the PMOLED display screen, and a first gap is provided between adjacent color filter films. The first surface of the color filter film is coated with a gray-black ink layer. The second surface of one color filter film is coated with a first color ink layer, and the second surface of another adjacent color filter film is coated with a second color ink layer. A second gap is provided between the first color ink layer and the second color ink layer.

[0008] Furthermore, in the aforementioned PMOLED multicolor display structure based on white display, the first color ink layer and the second color ink layer emit different colors.

[0009] Furthermore, in the aforementioned PMOLED multicolor display structure based on white display, the transmittance of the gray-black ink layer is 45%~48%.

[0010] Furthermore, in the aforementioned PMOLED multicolor display structure based on white display, the surface of the gray-black ink layer is frosted, with an AG value of 15-20.

[0011] Furthermore, in the aforementioned PMOLED multicolor display structure based on white display, the first gap is 0.364mm.

[0012] Furthermore, in the aforementioned PMOLED multicolor display structure based on white display, the second gap is 0.27mm.

[0013] Furthermore, in the aforementioned PMOLED multicolor display structure based on white display, the colored ink layer and the PMOLED display screen are bonded together using OCA adhesive.

[0014] Furthermore, in the aforementioned PMOLED multicolor display structure based on white display, the brightness of the PMOLED display screen is >500 cd / m². 2 .

[0015] In summary, the structure adopted in this embodiment of the present invention has the following advantages: The present invention describes a PMOLED multicolor display structure based on white display. The PMOLED display shows white text, with the second surface of a color filter film facing down and bonded to the PMOLED display. A color ink layer is also bonded to the PMOLED display, with a frosted gray-black ink layer facing up. After bonding, the color filter film appears black when the screen is not in use and displays a color effect when the screen is in use. The corresponding color is the color printed on the color ink layer. In this embodiment, multiple color ink layers can be arranged side-by-side to achieve multiple color display effects. The first color ink layer is printed with transparent orange ink, the second color ink layer is printed with transparent green ink, and no color is printed at the 0.27mm intersection of green and orange. The external dimensions of the color filter film are the same as the PMOLED external dimensions. Multicolor display of PMOLED is achieved at low cost without opening new molds, saving costs and not affecting applications in other projects.

[0016] To further understand the features and technical content of this utility model, please refer to the following detailed description and drawings of this utility model. However, the drawings provided are for reference and illustration only and are not intended to limit this utility model. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments or prior art of this specification, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the PMOLED multicolor display structure based on white display in an embodiment of this utility model; Figure 2 This is a side view of the PMOLED multicolor display structure based on white display in an embodiment of this utility model.

[0019] The reference numerals in the above figures are as follows: 1. PMOLED display screen; 2. Color filter film; 3. Gray-black ink layer; 4. First color ink layer; 5. Second color ink layer; 6. First gap; 7. Second gap. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this specification.

[0021] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can understand the advantages and effects of this utility model from the content disclosed in this specification. This utility model can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of this utility model. Furthermore, the accompanying drawings of this utility model are for simple illustration only and are not depictions of actual dimensions, as stated in advance. The following embodiments will further describe the relevant technical content of this utility model in detail, but the disclosed content is not intended to limit the scope of protection of this utility model.

[0022] It should be understood that while terms such as "first," "second," and "third" may be used in this document to describe various components or signals, these components or signals should not be limited by these terms. These terms are primarily used to distinguish one component from another, or one signal from another. Furthermore, the term "or" as used herein should, as appropriate, include any combination of one or more of the related listed items.

[0023] Reference Figures 1 to 2 As shown in the figure, this application discloses a PMOLED multicolor display structure based on white display, including: PMOLED display screen 1, wherein the PMOLED display screen 1 displays white text; Multiple color filter films 2 are provided, each having a first surface and a second surface on its upper and lower sides. The second surfaces of the multiple color filter films 2 are attached to the upper surface of the PMOLED display screen 1, and a first gap 6 is provided between adjacent color filter films 2. The second surface of one color filter film 2 is coated with a first color ink layer 4, the second surface of another adjacent color filter film 2 is coated with a first color ink layer 4, the second surface of adjacent color filter films 2 is coated with a second color ink layer 5, and a second gap 7 is provided between the first color ink layer 4 and the second color ink layer 5.

[0024] Specifically, in this embodiment, the first colored ink layer 4 and the second colored ink layer 5 are different luminescent colors.

[0025] Specifically, in this embodiment, the transmittance of the gray-black ink layer 3 is 45%~48%.

[0026] Specifically, in this embodiment, the surface of the gray-black ink layer 3 is frosted, and the AG value is 15-20.

[0027] Specifically, in this embodiment, the first gap 6 is 0.364 mm.

[0028] Specifically, in this embodiment, the second gap 7 is 0.27 mm. The second gap 7 between adjacent colored ink layers is smaller than the first gap 6 between adjacent colored filter films 2, which ensures that the colors are fully displayed.

[0029] Specifically, in this embodiment, the colored ink layer and the PMOLED display screen 1 are bonded together using OCA adhesive.

[0030] Specifically, in this embodiment, the brightness of the PMOLED display 1 is >500 cd / m². 2 .

[0031] With the above structure, the PMOLED display 1 displays white text, the second surface of the color filter film 2 is attached to the PMOLED display 1 with its second surface facing down, the color ink layer is attached to the PMOLED display 1, and the frosted gray-black ink layer 3 faces up. After attachment, the color filter film 2 appears black when the screen is not working, and displays a color display effect when the screen is working. The corresponding color is the color printed on the color ink layer, and the color of the first gap 6 is white text. In this embodiment, multiple color ink layers can be arranged in parallel to achieve a multi-color display effect. The first color ink layer 4 is printed with transparent orange ink, the second color ink layer 5 is printed with transparent green ink, and no color is printed at the 0.27mm intersection of green and orange. The outer dimensions of the color filter film 2 are the same as the outer dimensions of the PMOLED. Multi-color display of PMOLED can be achieved at low cost without opening new molds, saving costs and not affecting applications in other projects.

[0032] The above-disclosed content is only a preferred and feasible embodiment of the present utility model, and is not intended to limit the scope of the patent application of the present utility model. Therefore, all equivalent technical changes made using the contents of the present utility model specification and drawings are included in the scope of the patent application of the present utility model.

[0033] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0034] Although this application has been described by way of examples, those skilled in the art will know that this application has many modifications and variations without departing from the spirit of this application, and it is intended that the appended embodiments include these modifications and variations without departing from this application.

Claims

1. A PMOLED multicolor display structure based on white display, characterized in that, include: A PMOLED display screen that displays white text; Multiple color filter films are provided, each color filter film having a first surface and a second surface on its upper and lower sides. The second surfaces of the multiple color filter films are attached to the upper surface of the PMOLED display screen, and a first gap is provided between adjacent color filter films. The first surface of the color filter film is coated with a gray-black ink layer. The second surface of one color filter film is coated with a first color ink layer, and the second surface of another adjacent color filter film is coated with a second color ink layer. A second gap is provided between the first color ink layer and the second color ink layer.

2. The PMOLED multicolor display structure based on white display according to claim 1, characterized in that, The first colored ink layer and the second colored ink layer are different luminescent colors.

3. The PMOLED multicolor display structure based on white display according to claim 1, characterized in that, The transmittance of the gray-black ink layer is 45% to 48%.

4. The PMOLED multicolor display structure based on white display according to claim 1, characterized in that, The surface of the gray-black ink layer is frosted, and the AG value is 15-20.

5. The PMOLED multicolor display structure based on white display according to claim 1, characterized in that, The first gap is 0.364 mm.

6. The PMOLED multicolor display structure based on white display according to claim 1, characterized in that, The second gap is 0.27 mm.

7. The PMOLED multicolor display structure based on white display according to claim 1, characterized in that, The colored ink layer and the PMOLED display are bonded together using OCA adhesive.

8. The PMOLED multicolor display structure based on white display according to claim 1, characterized in that, The brightness of the PMOLED display is >500 cd / m². 2 .