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Penetration-reflection dual-purpose electrowetting (EW) display panel

An electrowetting display and dual-use technology, which is applied in the direction of optical components, optics, instruments, etc., can solve the problems such as the inability to display the picture clearly and the decrease of contrast, and achieve the effect of improving contrast and penetration rate and improving the flexibility of use

Active Publication Date: 2013-10-16
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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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

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  • Penetration-reflection dual-purpose electrowetting (EW) display panel
  • Penetration-reflection dual-purpose electrowetting (EW) display panel
  • Penetration-reflection dual-purpose electrowetting (EW) 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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Abstract

The invention provides a penetration-reflection dual-purpose electrowetting (EW) display panel. The panel possesses two working modes of the penetration and the reflection. The panel is characterized in that several main pixels (20) are comprised; each main pixel (20) comprises several sub-pixels (22); each sub-pixel (22) comprises first, second and third substrates (42, 44, 49), a shading control layer (46) and a chromogenic layer (48); the shading control layer (46) comprises a first reflection electrode (53), a first penetration electrode (54), a first polarity solution (55) and a nonpolar light absorption solution (56); the chromogenic layer (48) comprises a second reflection electrode (63), a second enetration electrode (64), a second polarity solution (65) and a nonpolar chromogenic solution (66). By using the penetration-reflection dual-purpose EW display panel of the invention, usage elasticity, a contrast ratio and a penetration rate of the EW display panel are increased.

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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IPC IPC(8): G02B26/00
CPCG02B26/005
Inventor 陈孝贤
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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