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Electrochromic display device and manufacturing method thereof

A technology of electrochromic and display devices, which is applied in the direction of electric solid devices, electrical components, semiconductor devices, etc., and can solve the problems of unfavorable display effects of electrochromic display devices

Active Publication Date: 2014-08-06
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

During the display process of the electrochromic display device, if the light leakage is not suppressed, it will be detrimental to the display effect of the electrochromic display device.

Method used

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  • Electrochromic display device and manufacturing method thereof
  • Electrochromic display device and manufacturing method thereof
  • Electrochromic display device and manufacturing method thereof

Examples

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Effect test

Embodiment 1

[0066] The embodiment of the present invention provides an electrochromic display device, wherein the electrochromic display device includes a plurality of electrochromic pixels, and each electrochromic pixel includes sequentially forming a first conductive layer on a transparent substrate, an electrochromic A color changing layer, a second conductive layer, etc.; an opening area is provided between adjacent electrochromic pixels. The opening area is provided with a thin film transistor and a data electrode. The gate, source, drain, and data electrode of the thin film transistor are all made of opaque materials, and the projection of the gate, source, drain and data electrode of the thin film transistor covers the area where the opening area is located. Since none of the above-mentioned structures transmit light, the above-mentioned structure can achieve the effect of preventing light leakage in the opening area.

[0067] Preferably, the opaque material is metal. The opaque mat...

Embodiment 2

[0093] The embodiment of the present invention provides a method for preparing an electrochromic display device, which is used to form the above-mentioned electrochromic display device.

[0094] Such as Figure 7 As shown, the preparation method includes:

[0095] Step S701, forming a plurality of electrochromic pixels on the transparent substrate.

[0096] Wherein, each electrochromic pixel includes a first conductive layer, an electrochromic layer, and a second conductive layer sequentially formed on the transparent substrate 1, and an opening area 10 is provided between adjacent electrochromic pixels.

[0097] Step S702, forming a thin film transistor and a data electrode in the opening area.

[0098] Wherein, the gate 33, source 32, drain 31 and data electrode 4 of the thin film transistor 3 are made of opaque materials. The projection of the gate 33, source 32, drain 31 and data electrode 4 of the thin film transistor 3 Cover the opening area 10.

[0099] Further, the opaque materi...

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Abstract

The invention discloses an electrochromic display device and a manufacturing method of the electrochromic display device, and relates to the technical field of displaying. The electrochromic display device can effectively restrain the light leak phenomenon of opening areas between adjacent electrochromic pixels, and therefore the display effect of the electrochromic display device is improved. The electrochromic display device comprises a plurality of electrochromic pixels, each electrochromic pixel comprises a first conducting layer, an electrochromic layer and a second conducting layer, the first conducting layers, the electrochromic layers and the second conducting layers are formed in a transparent substrate in sequence, the opening areas are arranged between the adjacent electrochromic pixels, and thin film transistors and data electrodes are arranged in the opening areas. The opening areas are covered with the projection of grid electrodes, source electrodes and drain electrodes of the thin film transistors and the projection of the data electrodes, and the grid electrodes, the source electrodes and the drain electrodes of the thin film transistors and the data electrodes are made of lighttight materials.

Description

Technical field [0001] The invention relates to the field of display technology, in particular to an electrochromic display device and a preparation method thereof. Background technique [0002] Electrochromism (EC) refers to the phenomenon that the optical properties of certain materials (including reflectance, transmittance, absorption, etc.) undergo stable and reversible changes under the action of an external electric field, and their appearance and performance It is the reversible change of color and transparency. Materials with electrochromic properties are called electrochromic materials, and display devices made of the electrochromic materials are called electrochromic display devices. Based on the long-lasting and stable color change of electrochromic materials and only requires energy when the color changes, electrochromic display devices have broad application prospects. [0003] However, the inventor found that there are at least the following problems in the prior ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/153G02F1/155
CPCG02F1/155G02F2001/1635H01L27/124H01L27/1259
Inventor 徐少颖侯学成
Owner BOE TECH GRP CO LTD
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