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Transflective electrowetting display panel

An electro-wetting display, dual-purpose technology, applied in optical components, optics, instruments, etc., can solve the problems of decreased contrast and incomprehensible display of the picture, and achieve the effect of improving the flexibility of use, contrast and transmittance

Active Publication Date: 2015-10-07
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] As mentioned above, the electrowetting display technology (Electro Wetting Display, EWD) is a technology that uses the different surface tension characteristics of ink and water as the driving principle of the display medium. Like ordinary displays, generally speaking, it is a full-through type. The external environment is in a state of high brightness, the picture cannot be displayed clearly, and the contrast ratio decreases

Method used

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  • Transflective electrowetting display panel
  • Transflective electrowetting display panel
  • Transflective electrowetting display panel

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Embodiment Construction

[0029] In order to further illustrate the technical means adopted by the present invention and its effects, the following describes in detail in conjunction with preferred embodiments of the present invention and accompanying drawings.

[0030] The invention provides a transflective electrowetting display panel, the working mode of which includes a transmissive mode and a reflective mode. Such as figure 1 As shown, it is a schematic diagram of the structure when no driving voltage is applied, that is, a schematic diagram of a full black mode display. The thick arrow is the selected backlight (Back Light, BL) (penetrating) light path, and the thin arrow is the external ambient light source ( Reflection) light path, in the figure, each main pixel includes three sub-pixels as an example for illustration. The transflective electrowetting display panel includes several main pixels 20, several first upper baffles 32 and several first lower baffles 34, each of the main pixels 20 inc...

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PUM

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Abstract

The present invention provides a transmission / reflection dual-functional electrowetting display panel, which has two operation modes of transmission and reflection and specifically includes a plurality of main pixel (20). Each main pixel (20) includes a plurality of sub-pixels (22). Each sub-pixels (22) includes: a first, a second, and a third substrates (42, 44, 49), a light-blocking control layer (46), and a color displaying layer (48). The light-blocking control layer (46) includes: a first reflection electrode (53) and a first transmission electrode (54) and a first polar solution (55) and a nonpolar light-absorbing solution (56). The color displaying layer (48) includes a second reflection electrode (63) and a second transmission electrode (64) and a second polar solution (65) and a nonpolar color-displaying solution (66). The transmission / reflection dual-functional electrowetting display panel of the present invention improves the flexibility of use, the contrast ratio, and the transmission ratio of the electrowetting display panel.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a transflective electrowetting display panel. Background technique [0002] Electrowetting (Electrowetting, EW) refers to the phenomenon of changing the wettability of the droplet on the substrate by changing the voltage between the droplet and the insulating substrate, that is, changing the contact angle, so that the droplet is deformed and displaced. In general, electrowetting is a technique for reflective displays that changes the surface tension of an aqueous liquid by applying a voltage to the liquid. For example, when a voltage is applied to a pixel-defining space including a waterproof insulator, electrodes, aqueous liquid, and non-aqueous liquid, the surface tension of the non-aqueous liquid changes so that the non-aqueous liquid moves. When a positive voltage is applied to the liquid including the aqueous liquid and the non-aqueous colored liquid and a negative voltage...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B26/00
CPCG02B26/005
Inventor 陈孝贤
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD