电子纸显示装置及电子设备

By setting barrier grooves in the leveling layer and filling them with a blocking medium, the problem of moisture intrusion in electronic paper display devices is solved, thereby improving the device's service life and reliability.

CN224519096UActive Publication Date: 2026-07-17ZHEJIANG LAIBAO DISPLAY TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG LAIBAO DISPLAY TECHNOLOGY CO LTD
Filing Date
2025-09-16
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing electronic paper display devices, the leveling layer between the top and bottom substrates is easily invaded by external moisture, which affects the display effect of the electronic paste in the filling layer and reduces the lifespan of the device.

Method used

Barrier grooves are set in the leveling layer and filled with a barrier medium to prevent water vapor from entering. Through the combination of the barrier grooves in the first and second leveling layers and the barrier medium, external water vapor and oxygen are prevented from penetrating the filling layer.

Benefits of technology

It effectively protects the electronic paste in the filler layer, improves the service life and reliability of electronic paper display devices, and prevents moisture and oxygen from oxidizing and damaging the filler layer.

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Abstract

本实用新型提供一种电子纸显示装置及电子设备，电子纸显示装置包括顶部基板、底部基板、填充层以及阻挡介质，其中，顶部基板包括第一基板及第一电极层，底部基板包括第二基板、驱动层、第一流平层及第二电极层，设置于顶部基板以及底部基板之间的填充层包括电子浆料，设置有电子浆料的区域形成有显示区，底部基板的第一流平层在靠近顶部基板的一侧形成有第一阻隔槽，第一阻隔槽设置于显示区的周侧，阻挡介质填充于第一阻隔槽，以使阻挡介质连接底部基板的第一流平层以及顶部基板。如此设置，通过第一阻隔槽的阻挡介质阻挡外部的水汽通过第一流平层侵入填充层的电子浆料中，从而提升了产品的使用寿命，保证了产品的可靠性。
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Claims

1. An electronic paper display device, characterized in that, include: A top substrate, a bottom substrate, a filling layer disposed between the top substrate and the bottom substrate, and a barrier medium; The top substrate includes a first substrate and a first electrode layer, wherein the first electrode layer is disposed on the side of the first substrate near the bottom substrate; The filling layer contains electronic paste; The bottom substrate includes a second substrate, a driving layer, a first leveling layer, and a second electrode layer. The driving layer is disposed on the side of the second substrate near the top substrate and has a plurality of thin-film transistors. The first leveling layer covers the driving layer, and the second electrode layer is disposed on the side of the leveling layer near the top substrate and is electrically connected to the thin-film transistors. The top substrate includes a second leveling layer, and the electronic paper display device forms a display area in the region where the electronic paste is disposed. A barrier groove is disposed in the first leveling layer and / or the second leveling layer. At least one first barrier groove is formed on the side of the first leveling layer near the top substrate, and the first barrier groove is located on the periphery of the display area. The blocking medium fills the first barrier groove and connects the first leveling layer and the top substrate.

2. The electronic paper display device according to claim 1, wherein The first barrier groove is arranged in a ring around the periphery of the display area.

3. The electronic paper display device according to claim 2, wherein The spacing between the inner walls of the first barrier groove gradually decreases from the side closer to the top substrate to the side farther away from the top substrate. And / or, the first barrier groove extends through the first leveling layer so that the barrier medium is connected to the drive layer after being filled in the first barrier groove.

4. The electronic paper display device as claimed in claim 1, characterized in that, There are multiple first barrier grooves, and the multiple first barrier grooves are spaced apart, and an annular interval is formed between two adjacent first barrier grooves.

5. The electronic paper display device according to claim 1, wherein The second leveling layer has at least one second barrier groove formed on the side near the bottom substrate. The second barrier groove is disposed corresponding to the first barrier groove. The barrier medium fills the second barrier groove and the first barrier groove and connects the top substrate and the bottom substrate.

6. The electronic paper display device according to claim 5, wherein The second barrier groove is annular and is arranged in a one-to-one correspondence with the first barrier groove.

7. The electronic paper display device according to claim 5, wherein The spacing between the inner walls of the second barrier groove gradually decreases from the side closer to the bottom substrate to the side farther away from the bottom substrate; And / or, the second barrier groove penetrates the second leveling layer so that the barrier medium is connected to the first substrate after being filled in the second barrier groove.

8. The electronic paper display device according to claim 1, wherein The bottom substrate includes at least one through hole, which penetrates the first leveling layer, and the thin film transistor is electrically connected to the second electrode layer through the through hole.

9. The electronic paper display device according to claim 8, wherein At least a portion of the second electrode layer and at least a portion of the thin-film transistors are disposed in the display area.

10. An electronic device, comprising: Includes the electronic paper display device according to any one of claims 1-9.