Display panel

Abstract

The embodiment of the invention provides a display panel and relates to the technical field of display. According to the display panel, color display can be achieved without a backlight source or colored filter layer. The display panel comprises pixel separating walls arranged between a first substrate and a second substrate, wherein the space between the first substrate and the second substrate is divided into a plurality of sub-pixel areas by the pixel separating walls, and a first electrode, a first fluid layer, a second fluid layer, a hydrophobic dielectric layer, a second electrode and a black light absorption layer are arranged in any sub-pixel area in sequence in the direction from the first substrate to the second substrate; the first fluid layer is formed by transparent hydrophilic liquid, the second fluid layer is formed by colored printing ink, the second fluid layer is spread on the surface of the hydrophobic dielectric layer when no electric field exists between the first electrode and the second electrode, and the second fluid layer contracts to make the hydrophobic dielectric layer exposed when an electric field exists between the first electrode and the second electrode.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a display panel. Background technique [0002] Electrowetting (ElectroWetting on Dielectric, EWOD) refers to the phenomenon that the surface tension of the liquid on the solid surface is changed by adjusting the voltage applied between the liquid and the solid electrode, thereby changing the contact angle between the two. In recent years, droplet driving and control technology based on the electrowetting effect on the medium has attracted widespread attention and has been applied to the field of flat panel display. [0003] At present, electrowetting display technology is mainly divided into two types: reflective and passive light emitting. Reflective electrowetting display technology mainly controls the grayscale by shrinking and expanding the black ink covered on the white reflective electrode under voltage control to achieve black and white display; or, on the basis ...

AI Technical Summary

Problems solved by technology

[0005] However, the reflective electrowetting display technology in the prior art can only achieve black and white display without the cooperation effect of color filters, and the display effect is very limited; while color display requires additional color filters, and the structure is more complicated. Complexity, which limits the further development of reflective electrowetting display technology

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