Electrophoretic display substrate, inspection method of electrophoretic display substrate, and electrophoretic display device

Abstract

In the electrophoretic display substrate, the electrophoretic display layer has a dispersion medium and a charged electrophoretic ink display element (15), and the first substrate (1) has gate lines, data lines, thin film transistors, sub-pixel electrodes (10), and has first and Capacitive elements (20) of the second electrodes (8, 7), capacitive element electrode lines (3, 3A, 3B) and common electrode lines (4, 25), source and drain terminals (12, 13) of thin film transistors One of them is connected to the data line, the other is connected to the sub-pixel electrode and the first electrode (8), the capacitor element electrode line is connected to the second electrode (7), and a common electrode is formed on one surface of the second substrate (2) (14), a color filter layer is formed on the other surface, the common electrode is connected to the common electrode line, and the color filter layer has a transparent resin (6) laminated on the second substrate and color filter pixels on the resin ( 26, 27, 28, 29).

Description

technical field [0001] The present invention relates to an electrophoretic display substrate, and particularly relates to a drive circuit capable of applying a voltage to electrophoretic display elements without installing a driver IC or a cable on the electrophoretic display substrate, thereby enabling all the electrophoretic display elements to change color to a specified level. An electrophoretic display substrate for display inspection based on the color of the wavelength, a method for inspecting the electrophoretic display substrate, and an electrophoretic display device. Background technique [0002] An electrophoretic display substrate, which is a display substrate that retains an image even when the power supply to the image display element is cut off, has been put into practical use, and is popularized as a display substrate for electronic books and electronic price tags. The representative of the practical electrophoretic display substrate is the microcapsule elect...

AI Technical Summary

Problems solved by technology

[0009] In the colorization of electrophoretic display substrates using color filters, there is a disadvantage that the color gamut that can be expressed is narrowed. As the improvement method, there are: the transparency of the adhesive for pasting the color filters is improved, and the color pixels of the color filters are improved. The inventors have conducted a lot of research on the amplification of the substrate and the high-precision alignment of the TFT pixels on the substrate.

However, if the size of the color pixel is close to that of the TFT pixel on the substrate, the allowable amount of positional shift (misalignment) during bonding will be reduced, and a slight positional shift will cause the color pixel to cover the area adjacent to the target TFT pixel. TFT pixels, resulting in a significant reduction in the color gamut that can be expressed

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