Segment code display panel and electronic paper display device

• Main Authors: WANG LINGLING, HAO LIQIANG, LIU HONGJUN, MU XINJU
• Format: Patent
• Language: Chinese; English
• Published: 05.04.2022
• Subjects: ADVERTISING; CRYPTOGRAPHY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DISPLAY; DISPLAYING; EDUCATION; FREQUENCY-CHANGING; LABELS OR NAME-PLATES; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; SEALS; SIGNS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

The embodiment of the utility model discloses a segment code display panel and an electronic paper display device. The segment code display panel comprises a substrate, and a first circuit layer, an insulating layer, a pattern layer and a second circuit layer which are located on the substrate. Wherein the insulating layer covers the first circuit layer and is located between the first circuit layer and the pattern layer, a first via hole is formed in the insulating layer, a part of the first circuit layer is exposed out of the first via hole, and the second circuit layer is in lap joint with the exposed first circuit layer through the first via hole. According to the embodiment of the utility model, the product quality problems of insufficient reliability, over-low yield and the like caused by thinning of a circuit due to secondary corrosion and even open circuit in the conventional preparation method of the electronic paper segment code screen are solved, the reliability of segment code display products is