TWI429949B - 2d/3d convertible stereoscopic display and control electrode substrate thereof - Google Patents

Description

2D/3D convertible stereo display and its control electrode substrate

The present invention relates to a stereoscopic display, and more particularly to a stereoscopic display capable of 2D/3D partial conversion.

The so-called stereo image is in addition to the plane's X-axis and Y-axis, but also has a significant depth. Generally, it adopts a parallax effect in which the angles of the left and right eyes of the human being are slightly different, and the received images have a small difference, and the stereoscopic images formed by the mutual compensation are automatically compensated in the brain, and can be in a state of stillness and movement. maintain. That is to make the images seen by the left and right eyes slightly different.

In the current stereoscopic image technology, it can be distinguished into a glasses type 3D technology and a bare eye type 3D technology. Eyeglass-type 3D technology has a long history of development. Early 3D stereoscopic movies use red and green glasses to present effects. However, since the red-green glasses technology can only be rendered in a grayscale or monotonous color background, it has rarely been used.

At present, the mainstream commercialization technology can be divided into two types, namely, polarized glasses and shutter glasses. The former has lower cost, so the market is more popular, but the brightness and resolution are poor. The problem of afterimage can be solved, but the cost is high.

However, it is quite inconvenient to wear glasses to enjoy 3D stereoscopic images or bring them to users.

Therefore, the application of the naked-eye 3D technology has been born, and most of them are currently used on small-sized screens such as mobile phones to present 3D image effects. However, the naked-eye 3D technology, although directly viewable, eliminates the need to wear polarized glasses. However, the naked-eye 3D technology mainly uses a directional backlight, a barrier type or a lenticular lens to cause parallax effects on the left and right eyes of the viewer, so that the image looks really A certain three-dimensional feeling.

The conventional naked-eye 3D technology makes it difficult to change the angle of display once the angle of presentation of the 3D image is determined. However, in the 3D mode, the resolution of the text is thus reduced. Therefore, the conventional naked-eye 3D technology is not suitable for display in text, but in the present web page presentation, it is often necessary to simultaneously present text and drawings. How to change the presentation area of 2D and 3D on the stereo display according to the needs of the use, is the direction that the display industry is actively developing.

In view of the above-described prior art, the display of text is not suitable due to the conventional 3D technology. However, with the presentation of current web pages, it is often necessary to present both text and drawings. Therefore, it is necessary to design a display that can change the presentation area of 2D and 3D on the stereoscopic display according to the needs at the time of use.

One of the objectives of the present invention is to provide a 2D/3D convertible stereoscopic display, which can change the area on the screen to display 3D and display the 2D area according to the needs of the user, so that the user can simultaneously view the 3D image. Partially display 2D images.

According to the above, the present invention discloses a 2D/3D convertible stereoscopic display having a common electrode substrate, a control electrode substrate, and a liquid crystal layer sealed between the common electrode substrate and the control electrode substrate, and using the control electrode. The substrate controls the liquid crystal angle of the liquid crystal layer to form a liquid crystal lens, for example, a plurality of liquid crystal lenticular lenses. In one part of the screen, one part of one picture presents a 3D image, and the other part presents a 2D image.

The control electrode substrate of the 2D/3D convertible stereoscopic display comprises a transparent substrate, a plurality of first transparent conductive lines formed on the transparent substrate, and a dielectric layer formed on the first transparent conductive line and the transparent substrate a transparent semiconductor layer is formed on the dielectric layer, a plurality of second transparent conductive lines are formed on the transparent semiconductor layer, and a plurality of transparent electrodes are formed on the transparent semiconductor layer and are interleaved with the second transparent conductive line. . Wherein, the first transparent conductive line forms a predetermined angle with the second transparent conductive line, preferably about 90 degrees, and the transparent electrode controls the liquid crystal angle of the liquid crystal layer of a stereoscopic display to form a liquid crystal lens, for example, a plurality of The liquid crystal lenticular lens, in one part of the picture, causes one part of one picture to present a 3D image and the other part to present a 2D image.

The transparent substrate is a glass substrate, and the first transparent conductive line, the second transparent conductive line and the transparent electrode are an Indium Tin Oxide (ITO) layer, a Zinc Oxide (ZnO) layer, and an oxidation layer. Indium Zinc Oxide (IZO) layer, aluminum zinc oxide (AZO) layer or gallium zinc oxide (GZO) layer.

The dielectric layer is composed of cerium oxide, cerium nitride, cerium oxynitride, Phosphosilicate glass (PSG) or Borophosphosilicate glass (BPSG). The transparent semiconductor layer is an indium gallium zinc oxide (IGZO; In-Ga-Zn-O) semiconductor layer, a zinc oxide (Zinc Oxide; ZnO) semiconductor layer, an aluminum zinc oxide (Aluminium Zinc Oxide (AZO) semiconductor layer, poly-3, 4-ethylenedioxythiophene (PEDOT) semiconductor layer, NbxOy semiconductor layer, sp3 bonded diamond-like semiconductor layer or amorphous germanium (Amorphous Silicon; a-Si) a semiconductor layer, an aluminum oxide (Alumina; Al ₂ O ₃ ) semiconductor layer, a titanium oxide (Titania; TiO ₂ ) semiconductor layer, a tin oxide (SnO ₂ , SnO ₅ ) semiconductor layer, a hafnium oxide (HfO ₂ ) semiconductor layer, Silicon nitride (Si ₃ N ₄ ) semiconductor layer, tantalum oxide (Ta ₂ O ₅ ) semiconductor layer, zirconia (ZrO ₂ ) semiconductor layer or yttrium oxide (La ₂ O ₃ ) semiconductor layer or yttrium oxide (Pr ₂ O ₃ ) semiconductor layer.

Preferably, the transparent electrode and the second transparent conductive line are simultaneously formed on the transparent semiconductor layer. When the first transparent conductive line is introduced into a predetermined voltage, a plurality of channel regions are formed in the transparent semiconductor layer to turn on the second transparent conductive line and the corresponding transparent electrode, and the voltage of the second transparent conductive line determines corresponding transparency. The voltage of the electrode, and the angle of the liquid crystal of the liquid crystal layer is determined by the voltage of the transparent electrode to form a liquid crystal lens, for example, a plurality of liquid crystal lenticular lenses.

Therefore, the 2D/3D convertible stereoscopic display disclosed in the present invention uses the control electrode substrate to control the liquid crystal angle to form a plurality of liquid crystal lenticular lenses, so that the image can partially form a 3D image and the other portion form a 2D image. Therefore, the 2D/3D convertible stereoscopic display disclosed by the invention can conveniently display characters and pictures at the same time, which not only improves the stereoscopicity of the picture, but also can clearly display the characters, so that the application of the stereoscopic display is wider.

The invention discloses a 2D/3D convertible stereoscopic display, which can change the area for displaying 3D on the screen and the area for displaying 2D according to the needs of the user. Therefore, the user can simultaneously display the 2D image while viewing the 3D image. Therefore, the 2D/3D convertible stereoscopic display disclosed in the present invention can conveniently display a 3D stereoscopic image and simultaneously display a high-resolution character description in a part of the area. The spirit and scope of the present invention will be apparent from the following description of the preferred embodiments of the invention. The spirit and scope of the present invention.

Referring to Figure 1, there is shown a schematic diagram of a 2D/3D convertible stereoscopic display of the present invention. As shown in the figure, the 2D/3D convertible stereoscopic display 100 of the present invention preferably forms a first display area 110 and a second display area 120, and the size of the first display area 110 and the second display area 120. It can be adjusted according to the needs of the user, and can be changed to a 2D display area or a 3D display area according to the needs of the user. For example, the first display area 110 forms a 2D display area, and the second display area 120 forms a 3D display area. Alternatively, the first display area 110 forms a 3D display area, and the second display area 120 forms a 2D display area.

In a preferred embodiment, the first display area 110 forms a 2D text display area and the second display area 120 forms a 3D picture display area.

In another preferred embodiment, the first display area 110 forms a 3D picture display area and the second display area 120 forms a 2D text display area.

With the control electrode of the 2D/3D convertible stereoscopic display of the present invention, the 2D/3D convertible stereoscopic display of the present invention can locally control the required 3D display area, so that the stereoscopic display forms the required 3D display area and 2D as required. Display area.

Further referring to Figures 2 and 3, the 2D/3D convertible stereoscopic display of the present invention and its control electrodes are clearly illustrated. 2 is a partial cross-sectional view showing the control electrode substrate of the 2D/3D convertible stereoscopic display of the present invention, and FIG. 3 is a partial top view showing the control electrode substrate of the 2D/3D convertible stereoscopic display of the present invention. .

Referring to FIG. 2 and FIG. 3, the control electrode substrate of the 2D/3D convertible stereoscopic display of the present invention preferably includes a transparent substrate 210, such as a glass substrate, on which a first transparent conductive line 220 is disposed. A dielectric layer 230 is formed on the transparent substrate 210 and the first transparent conductive line 220, a transparent semiconductor layer 240 is formed on the dielectric layer 230, and a second transparent conductive line 250 is formed on the transparent semiconductor layer 240. And transparent electrode 260.

When a 3D picture display is to be performed, a predetermined voltage is transmitted along the desired portion of the first transparent conductive line 220, so that the first transparent conductive line 220 forms a gate structure similar to a transistor, and the second transparent conductive line The transparent electrode 260 and the transparent electrode 260 form a source and drain structure similar to the transistor, and the transparent semiconductor layer 240 located between the second transparent conductive line 250 and the transparent electrode 260 forms a channel region. Thus, the desired voltage signal can be input through the second transparent conductive line 250, and the channel region is formed by the transparent semiconductor layer 240, and is transmitted to the transparent electrode 260, so that the transparent electrode 260 has a predetermined voltage and is connected to the other electrode. The substrate generates a bias voltage to control the angle of the liquid crystal between the control electrode substrate and the other electrode substrate of the 2D/3D convertible stereoscopic display of the present invention. The switching of the channel region of the transparent semiconductor layer 240 is determined by the opening or closing of the first transparent conductive line 220, and the transparent electrode 260 is charged and discharged or maintained by the second transparent conductive line 250. In general, the desired 3D lens can be formed by the bias generated by the transparent electrode 260 and the other electrode substrate, and the transparent electrode 260 and the other electrode substrate can be made to have no pressure difference in the region where the 2D picture is displayed. Convenient for 2D and 3D switching. The voltage of the first transparent conductive line 220 can determine the size of the area in which the 3D image is to be formed in the vertical direction. By the voltage signal of the second transparent conductive line 250, the area where the 3D image is to be formed can be determined in the horizontal direction. The size and the angle of rotation required for the liquid crystal in this area. Therefore, the first display area 110 and the second display area 120 required for the 2D/3D convertible stereoscopic display of the present invention can be controlled by the first transparent conductive line 220 and the second transparent conductive line 250, that is, required The 2D text display area and the 3D picture display area are formed.

The other electrode substrate may be a transparent common electrode substrate to provide a second predetermined voltage and form a voltage difference with the predetermined voltage of the transparent electrode 260 to control between the common electrode substrate and the control electrode substrate. The angle of the liquid crystal is such that a desired liquid crystal lens is formed, for example, a plurality of liquid crystal lenticular lenses, so that the screen displayed by the display becomes a 3D image or a 2D image.

The transparent semiconductor layer 240 is preferably made of a transparent amorphous oxide semiconductor, such as an indium gallium zinc oxide (IGZO; In-Ga-Zn-O) semiconductor layer or a zinc oxide (ZnO) semiconductor layer. , Aluminium Zinc Oxide (AZO) semiconductor layer, poly-3,4-ethylenedioxythiophene (PEDOT) semiconductor layer, yttrium oxide (NbxOy) semiconductor layer, Sp3 bond-like diamond-like semiconductor layer or amorphous germanium (A-Si) semiconductor layer, aluminum oxide (Alumina; Al ₂ O ₃ ) semiconductor layer, titanium oxide (Titania; TiO ₂ ) semiconductor layer, tin oxide (SnO) ₂ , SnO ₅ ) semiconductor layer, hafnium oxide (HfO ₂ ) semiconductor layer, silicon nitride (Si ₃ N ₄ ) semiconductor layer, tantalum oxide (Ta ₂ O ₅ ) semiconductor layer, zirconium oxide (ZrO ₂ ) a semiconductor layer or a lanthanum oxide (La ₂ O ₃ ) semiconductor layer or a yttrium oxide (Pr ₂ O ₃ ) semiconductor layer. The dielectric layer 230 is preferably made of cerium oxide, cerium nitride, cerium oxynitride, Phosphosilicate glass (PSG) or Borophosphosilicate glass (BPSG).

Therefore, the 2D/3D convertible stereoscopic display of the present invention can conveniently determine which 3D picture needs to be displayed according to the image that the user needs to view, and display the 2D picture in other areas on the screen, so that the user can simultaneously read the image. Text and viewing pictures not only improve the three-dimensionality of the picture, but also clearly display the text, making the application of the stereo display wider.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the scope of the invention. Equivalent changes or modifications made without departing from the spirit of the invention are intended to be included within the scope of the appended claims.

100. . . 2D/3D convertible stereo display

110. . . First display area

120. . . Second display area

210. . . Transparent substrate

220. . . First transparent conductive line

230. . . Dielectric layer

240. . . Transparent semiconductor layer

250. . . Second transparent conductive line

260. . . Transparent electrode

The above and other objects, features, advantages and embodiments of the present invention will become more <RTIgt; <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt;

2 is a partial cross-sectional view showing a control electrode substrate of a 2D/3D convertible stereoscopic display of the present invention;

Fig. 3 is a partial top plan view showing the control electrode substrate of the 2D/3D convertible stereoscopic display of the present invention.

220. . . First transparent conductive line

230. . . Dielectric layer

240. . . Transparent semiconductor layer

250. . . Second transparent conductive line

260. . . Transparent electrode

Claims (10)

A control electrode substrate for a 2D/3D convertible stereoscopic display, comprising: a transparent substrate; a plurality of first transparent conductive lines formed on the transparent substrate; a dielectric layer formed on the first transparent conductive line and the a transparent semiconductor layer formed on the dielectric layer; a plurality of second transparent conductive lines formed on the transparent semiconductor layer; and a plurality of transparent electrodes formed on the transparent semiconductor layer And intersecting with the second transparent conductive lines, wherein the first transparent conductive lines form a predetermined angle with the second transparent conductive lines, and the transparent electrodes control a 2D/3D convertible stereo display The liquid crystal angle of one of the liquid crystal layers is formed to form a liquid crystal lens such that one portion of one picture presents a 3D image and the other portion presents a 2D image. The control electrode substrate of the 2D/3D convertible stereoscopic display according to claim 1, wherein the transparent substrate is a glass substrate. The control electrode substrate of the 2D/3D convertible stereoscopic display according to claim 1, wherein the first transparent conductive line is an indium tin oxide (ITO) layer, zinc oxide (Zinc Oxide; A ZnO) layer, an Indium Zinc Oxide (IZO) layer, an Aluminium Zinc Oxide (AZO) layer, or a Gallium Zinc Oxide (GZO) layer. The control electrode substrate of the 2D/3D convertible stereoscopic display according to claim 1, wherein the dielectric layer is cerium oxide, cerium nitride, cerium oxynitride, and phosphorous glass (PSG). Or borophosphosilicate glass (BPSG). The control electrode substrate of the 2D/3D convertible stereoscopic display according to claim 1, wherein the transparent semiconductor layer is an indium gallium zinc oxide (IGZO; In-Ga-Zn-O) semiconductor layer, and zinc oxide ( Zinc Oxide; ZnO) semiconductor layer, aluminum oxide zinc (Aluminium Zinc Oxide; AZO) semiconductor layer, poly-3,4-ethylenedioxythiophene (PEDOT) semiconductor layer, oxidation铌 (NbxOy) semiconductor layer, sp3 bond-like diamond-like semiconductor layer, amorphous germanium (A-Si) semiconductor layer), aluminum oxide (Alumina; Al ₂ O ₃ ) semiconductor layer, titanium oxide (Titania; TiO _{2 )} a semiconductor layer, a tin oxide (SnO ₂ , SnO ₅ ) semiconductor layer, a hafnium oxide (HfO ₂ ) semiconductor layer, a silicon nitride (Si ₃ N ₄ ) semiconductor layer, a tantalum oxide (Ta ₂ O ₅ ) semiconductor a layer, a zirconium oxide (ZrO ₂ ) semiconductor layer or a lanthanum oxide (La ₂ O ₃ ) semiconductor layer or a yttrium oxide (Pr ₂ O ₃ ) semiconductor layer. The control electrode substrate of the 2D/3D convertible stereoscopic display according to claim 1, wherein the transparent electrode and the second transparent The transparent conductive line is formed on the transparent semiconductor layer at the same time, and the transparent electrode and the second transparent conductive line are an indium tin oxide (ITO) layer, a zinc oxide (Zinc Oxide; ZnO) layer, An indium Zinc Oxide (IZO) layer, an aluminum zinc oxide (AZO) layer, or a gallium zinc oxide (GZO) layer. The control electrode substrate of the 2D/3D convertible stereoscopic display according to claim 1, wherein the liquid crystal lens is a plurality of liquid crystal lenticular lenses. The control electrode substrate of the 2D/3D convertible stereoscopic display according to claim 1, wherein when the first transparent conductive line is introduced into a predetermined voltage, a plurality of channel regions are formed in the transparent semiconductor layer to The second transparent conductive lines and the corresponding transparent electrodes are turned on to charge or discharge the corresponding transparent electrodes or maintain a voltage. The control electrode substrate of the 2D/3D convertible stereoscopic display according to claim 8, wherein the voltage of the transparent electrodes determines the liquid crystal layer after the second transparent conductive line is electrically connected to the corresponding transparent electrodes. The angles of the liquid crystals are such that the liquid crystal layer forms a plurality of liquid crystal lenticular lenses. A 2D/3D convertible stereoscopic display comprising: a common electrode substrate; The control electrode substrate of the 2D/3D convertible stereoscopic display according to any one of claims 1 to 9; and a liquid crystal layer sealed between the common electrode substrate and the control electrode substrate, and using the control The electrode substrate controls the liquid crystal angle of the liquid crystal layer to form a liquid crystal lens, such that one part of one picture presents a 3D image and the other part presents a 2D image.