CN202486424U

CN202486424U - Transparent display device

Info

Publication number: CN202486424U
Application number: CN2012200701794U
Authority: CN
Inventors: 姚琪; 戴天明; 张锋; 曹占锋
Original assignee: BOE Technology Group Co Ltd
Current assignee: BOE Technology Group Co Ltd
Priority date: 2012-02-28
Filing date: 2012-02-28
Publication date: 2012-10-10
Anticipated expiration: 2022-02-28

Abstract

The utility model relates to the technical field of display, and provides a transparent display device; the transparent display device comprises a transparent display and an electric wetting layer located on the non-display face of the transparent display; the electric wetting layer is arranged between two layers of transparent electrodes; and at least one layer of the two layers of the transparent electrodes is connected with a power supply switch. According to the utility model, a transparent display function is switched through the electric wetting layer and the transparent electrodes, which are provided on the back face of the display; a transparent display is carried out only when users select a transparent display mode; when the users need to protect privacy, the transparent display mode can be switched into a non-transparent display mode in real time, so that convenient use is ensured while privacy of the users is protected.

Description

Transparent display

Technical field

The utility model relates to the display technique field, particularly a kind of transparent display.

Background technology

Along with the development of display technique, increasing manufacturer has released one after another and has had the transparent display of perspective function, uses transparent display, and the user can the transmission display device when watching display frame sees the object at the display back side.The product of this novelty has obtained application at present in electronic products such as mobile phone, notebook computer; Also occurred in some other field of not using display device experimental application (such as, on windshield, driver's sight line is not caused in the show navigator information and blocks).But, owing to realized transparent demonstration, also can see user's display frame the people at the display back side, so transparent display has brought very big risk also for people's privacy bringing novel experience to people when.

The utility model content

The technical matters that (one) will solve

To above-mentioned shortcoming, the utility model provides a kind of transparent display that can effectively protect privacy in order to solve the easy problem of revealing privacy of user of transparent display in the prior art.

(2) technical scheme

For solving the problems of the technologies described above, the utility model specifically adopts following scheme to carry out:

At first; The utility model provides a kind of transparent display, comprises transparent display, also comprises the electric wetting layer that is positioned at the non-display surface of said transparent display; Said electric wetting layer is arranged between the two-layer transparency electrode, in the said two-layer transparency electrode at least one deck be connected with power switch.

Preferably, said electric wetting layer is formed in the electro-wetting.

Preferably, said electro-wetting is surrounded by fence.

Preferably, said transparent display is the transparent display of plane electric fields pattern.

Preferably, said plane electric fields pattern comprises IPS pattern and FFS pattern.

Preferably, when said transparent display was the transparent display of FFS pattern, the public electrode of array base palte bottom that is formed on the transparent display of said FFS pattern constituted the one deck in the said two-layer transparency electrode.

Preferably, between the non-display surface of said transparent display and said electric wetting layer, be formed with the hydrophobic effect layer.

Preferably, be filled to the dark pigment oil droplet in the said electric wetting layer.

(3) beneficial effect

In the utility model; See through the electric wetting layer and the control electrode that are arranged on the display back side and switch transparent Presentation Function; Only, the user carries out transparent demonstration when selecting transparent display mode; And when the user needs protection privacy, can switch to nontransparent display mode in real time, thereby when guaranteeing convenient the use, protected user's privacy.

Description of drawings

Fig. 1 is for having the structural representation of the transparent display of secret protection ability in the utility model;

Fig. 2 is for having the structural representation of the transparent display of secret protection ability in the preferred embodiment of the utility model;

Fig. 3 is for having the preparation flow synoptic diagram of the transparent display of secret protection ability in the preferred embodiment of the utility model.

Embodiment

To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment is a part of embodiment of the utility model, rather than whole embodiment.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skills are obtained under the prerequisite of not making creative work belongs to the scope that the utility model is protected.

In the embodiment of the utility model; In order to protect transparent display spare user's privacy; Only, the user carries out transparent demonstration when selecting transparent display mode; And when the user needs protection privacy, can switch to nontransparent display mode in real time, thereby when guaranteeing convenient the use, protected user's privacy.

Particularly; Referring to Fig. 1; The utility model has added the electric wetting layer 3 that one deck has the absorbing light effect on the basis of transparent display 1; Electricity wetting layer 3 is arranged between the two-layer transparency electrode, when not needing secret protection, can open second transparency electrode 2 and first transparency electrode 4 of electric wetting layer 3, makes the oil droplet that has the absorption effect of light in the electric wetting layer 3 move to non-display area (under the black matrix B M like colored filter); The light that can not influence display 1 back side like this sees through, and realizes transparent demonstration; Otherwise; As long as when needing secret protection, make the electrode outage (with at least one outage in the two-layer electrode) of electric wetting layer 3; Oil droplet is paved with electric wetting layer 3 naturally; Display 1 back side is blocked by coloured oil droplet, and display frame can only be shown the positive user of device to be seen, realizes the purpose of protection privacy.

The utility model can be used for various display modes, is particularly useful in the transparent display of IPS (In-Plane Switching, plane conversion) or FFS plane electric fields patterns such as (Fringe Field Switching, fringe field switchings).But because the array base palte of the transparent display of FFS display mode bottom itself has layer of transparent electrode (public electrode), this public electrode is full of electric charge when normally showing, thereby this public electrode capable of using serves as a transparency electrode of electric wetting layer.Referring to Fig. 2, the implementation structure of the utility model preferred embodiment in the FFS pattern is:

The hydrophobic effect layer 5 that forms successively in the bottom of transparent display, electric wetting layer 3, first transparency electrode 4 and first glass substrate 6; Wherein, said electric wetting layer 3 is formed in the electro-wetting that is surrounded by fence 7.

Further, the transparent display among Fig. 2 comprise color membrane substrates, array base palte and be formed on color membrane substrates and array base palte between liquid crystal layer 111.Wherein, said color membrane substrates comprises colored filter, and said colored filter is made up of the black matrix 102 and the color pixel cells (with the oblique line part of black matrix 102 with layer) that are formed on second glass substrate 101.Said array base palte comprises that successively (among Fig. 2 bottom-up order) is formed on public electrode 104, grid layer 105, gate insulator 106, active layer 107, source-drain electrode layer 108, passivation layer 109 and pixel electrode layer 110 on the 3rd glass substrate 103.Wherein, said public electrode 104 is as the transparency electrode of said electric wetting layer top (promptly near the display side); Said pixel electrode layer 110 also is a transparency electrode.Transparency electrode is preferably ITO (tin indium oxide) or IZO films such as (indium zinc oxides).

Among the embodiment of Fig. 2, just switch on to first transparency electrode 4 electro-wetting under when showing in that needs are transparent, the effect through electric charge can make oil droplet move to BM 102 places in the colored filter of correspondence, does not influence back light and sees through, and realizes transparent demonstration; But in public; When not hoping privacy compromise; Only need be first transparency electrode, 4 outages under the electro-wetting, the oil droplet change can be paved with electro-wetting, therefore as long as the oil droplet of filling has reasonable light receptivity (such as the oil droplet of dark color); Just can directly obstruct the light and project the back side of display, thereby just can realize when not influencing the display top view that the light path at the back side blocks.

Further referring to Fig. 3, the preparation flow of the transparent display spare with secret protection ability shown in Figure 2 is:

Form the color membrane substrates and the array base palte (adopting existing technology to get final product fully) of transparent display;

Color membrane substrates and array base palte form the transparent display with liquid crystal layer to box;

On to the array base palte behind the box, be coated with and form one deck hydrophobic effect layer;

Form the fence of a circle electro-wetting at hydrophobic effect layer periphery;

The backboard that will have transparency electrode forms electric wetting layer with the array base palte that has formed fence to box and extending oil aqueous mixtures.

Pass through said method; Can in existing transparent display manufacture process, introduce the wetting manufacture process of electricity; More preferably, utilize the bottom of FFS pattern array substrate itself to have a transparency electrode, make the electrode of this electrode and electric wetting layer bottom form two electrodes of the control electricity wetting layer of the utility model; Can also the independent Push And Release of accomplishing electro-wetting when the good module that makes last manufacturing has transparent demonstration, and then reach transparent and nontransparent switch.

Above embodiment only is used to explain the utility model; And be not the restriction to the utility model; The those of ordinary skill in relevant technologies field under the situation of spirit that does not break away from the utility model and scope, can also be made various variations and modification; Therefore all technical schemes that are equal to also belong to the category of the utility model, and the real protection scope of the utility model should be defined by the claims.

Claims

1. transparent display; Comprise transparent display, it is characterized in that, also comprise the electric wetting layer that is positioned at the non-display surface of said transparent display; Said electric wetting layer is arranged between the two-layer transparency electrode, in the said two-layer transparency electrode at least one deck be connected with power switch.

2. transparent display according to claim 1 is characterized in that, said electric wetting layer is formed in the electro-wetting.

3. transparent display according to claim 2 is characterized in that said electro-wetting is surrounded by fence.

4. transparent display according to claim 1 is characterized in that, said transparent display is the transparent display of plane electric fields pattern.

5. transparent display according to claim 4 is characterized in that, said plane electric fields pattern comprises IPS pattern and FFS pattern.

6. transparent display according to claim 5; It is characterized in that; When said transparent display was the transparent display of FFS pattern, the public electrode of array base palte bottom that is formed on the transparent display of said FFS pattern constituted the one deck in the said two-layer transparency electrode.

7. according to the arbitrary described transparent display of claim 1 to 6, it is characterized in that, between the non-display surface of said transparent display and said electric wetting layer, be formed with the hydrophobic effect layer.

8. according to the arbitrary described transparent display of claim 1 to 6, it is characterized in that, be filled to the dark pigment oil droplet in the said electric wetting layer.