CN102749715B - Display device capable of switching two-dimensional and three-dimensional display modes - Google Patents

Abstract

A display device capable of switching two-dimensional and three-dimensional display modes includes a switchable display mode device and a display panel arranged corresponding to the switchable display mode device. The switchable display mode device includes three substrates, two liquid crystal layers and four electrode layers. One of the electrode layers has a plurality of mutually parallel electrode patterns, and the electrode patterns are sequentially arranged along an arrangement direction. The display panel has a plurality of first-eye display areas and a plurality of second-eye display areas, and each electrode pattern is respectively disposed between any two adjacent first-eye display areas and each second-eye display area.

Description

Display device capable of switching two-dimensional and three-dimensional display modes

technical field

The present invention relates to a display device capable of switching between two-dimensional and three-dimensional display modes, in particular to a naked-eye display device capable of switching two-dimensional and three-dimensional display modes that integrates a parallax barrier panel and a liquid crystal lens panel. the

Background technique

In recent years, with the continuous improvement of display-related technologies, the development and application of stereoscopic display technologies have become more and more vigorous. The main principle of stereoscopic display technology is that the left and right eyes of the viewer receive different images, and the images received by the left and right eyes will be analyzed and superimposed by the brain so that the viewer perceives the layering of the image screen and depth, thereby creating a three-dimensional effect. the

At present, the stereoscopic display technology can be roughly divided into two categories: those that need to wear glasses (glasses type) and those that do not need to wear glasses (naked-eye type). Generally, a time-series stereoscopic display device that needs to wear glasses alternately displays the left-eye image for the left eye and the right-eye image for the right eye in a scanning manner, and the viewer needs to wear shutter glasses (shutter glasses) or Polarized glasses, to allow the viewer's left eye to only see the left eye image but not the right eye image, and to allow the viewer's right eye to only watch the right eye image but not the left eye image, by This achieves the effect of three-dimensional display. In contrast, although the glasses-free stereoscopic display device does not need glasses, a parallax barrier needs to be set in front of the display panel to reduce the brightness of the three-dimensional image, and the pixels are divided into pixels for displaying the image for the left eye and pixels for displaying the image for the right eye. The pixels of the image, thereby reducing the resolution of the 3D image. the

Since general display devices are not limited to be used for stereoscopic display only, it is necessary to have a switching function between two-dimensional and three-dimensional display modes. In general display devices that can switch between two-dimensional and three-dimensional display modes, since users are mostly located in front of the display device when viewing, a lenticular lens structure is usually added to the display panel of the display device to convert the large-angle Light is concentrated towards the front view angle. However, there is still a problem of precise alignment between the lenticular lens and the parallax barrier, which affects the quality of the display image. Moreover, when displaying a two-dimensional image on a display device equipped with a lenticular lens that can switch between two-dimensional and three-dimensional display modes, the two-dimensional image needs to be divided into two parts, and the two parts are displayed sequentially through a time sequence method to present a two-dimensional image. Therefore, it is necessary to increase the display frequency of the display panel, thereby increasing the load on the driver chip of the display panel. the

Contents of the invention

One of the objectives of the present invention is to provide a display device capable of switching between 2D and 3D display modes, so as to solve the aforementioned conventional problems. the

To achieve the above purpose, the present invention provides a display device capable of switching between two-dimensional and three-dimensional display modes, which includes a switchable display mode device and a display panel. The switchable display mode device includes a first substrate, a second substrate, a third substrate, a first liquid crystal layer, a second liquid crystal layer, a first electrode layer, a second electrode layer, and a third electrode layer and a fourth electrode layer. The second substrate is opposite to the first substrate. The third substrate is disposed between the first substrate and the second substrate. The first liquid crystal layer is disposed between the first substrate and the third substrate. The second liquid crystal layer is disposed between the second substrate and the third substrate. The first electrode layer is disposed between the first liquid crystal layer and the first substrate. The second electrode layer is disposed between the first liquid crystal layer and the third substrate, wherein one of the first electrode layer and the second electrode layer has a plurality of first electrode patterns parallel to each other, and each first electrode pattern is along a The ordering direction is in order. The third electrode layer is disposed between the second electrode layer and the second liquid crystal layer, and the third electrode layer is located below the second electrode layer. The fourth electrode layer is disposed between the second liquid crystal layer and the second substrate. The display panel is arranged corresponding to the switchable display mode device. The display panel has multiple first-eye display areas and multiple second-eye display areas, wherein each first electrode pattern is respectively arranged on any two adjacent first-eye display areas. area and each second-eye display area. the

Each of the first-eye display areas and each of the second-eye display areas are alternately arranged in sequence along the arrangement direction. the

The third substrate has a first surface and a second surface opposite to the first surface, and the third electrode layer and the second electrode layer are both disposed on the first surface of the third substrate, and A dielectric layer is interposed between the third electrode layer and the second electrode layer. the

One of the third electrode layer and the fourth electrode layer has a plurality of second electrode patterns. the

The first electrode layer has each of the first electrode patterns, while the second electrode layer does not have each of the first electrode patterns. the

The third electrode layer has the second electrode patterns, but the fourth electrode layer does not have the second electrode patterns. the

The fourth electrode layer has the second electrode patterns, while the third electrode layer does not have the second electrode patterns. the

The second electrode layer has the first electrode patterns, but the first electrode layer does not have the first electrode patterns. the

The third electrode layer has the second electrode patterns, but the fourth electrode layer does not have the second electrode patterns. the

The fourth electrode layer has the second electrode patterns, and the third electrode layer does not have the second electrode patterns. the

The first electrode layer and the second electrode layer respectively have the first electrode patterns, wherein the extension direction of each of the first electrode patterns in the first electrode layer intersects with that of each of the first electrodes in the second electrode layer The extension direction of the pattern. the

The third substrate has a first surface and a second surface opposite to the first surface, and the second electrode layer is arranged on the first surface of the third substrate, and the third electrode layer is arranged on on the second surface of the third substrate. the

One of the third electrode layer and the fourth electrode layer has a plurality of second electrode patterns. the

The first electrode layer has each of the first electrode patterns, while the second electrode layer does not have each of the first electrode patterns. the

The third electrode layer has the second electrode patterns, but the fourth electrode layer does not have the second electrode patterns. the

The fourth electrode layer has the second electrode patterns, and the third electrode layer does not have the second electrode patterns. the

The second electrode layer has the first electrode patterns, but the first electrode layer does not have the first electrode patterns. the

The third electrode layer has the second electrode patterns, but the fourth electrode layer does not have the second electrode patterns. the

The fourth electrode layer has the second electrode patterns, and the third electrode layer does not have the second electrode patterns. the

The first electrode layer and the second electrode layer respectively have the first electrode patterns, wherein the extension direction of each of the first electrode patterns in the first electrode layer intersects with that of each of the first electrodes in the second electrode layer The extension direction of the pattern. the

The display panel is located above the switchable display mode device. the

The display panel is located below the switchable display mode device. the

The present invention integrates the parallax barrier panel and the liquid crystal lens panel, not only can present a 3D image with the same resolution as the display panel in the 3D display mode, but also does not need to use two The two-dimensional image is displayed in a certain period of time, thereby reducing the display frequency of the display panel and reducing the load of the driver chip of the display panel. the

Description of drawings

FIG. 1 is a schematic cross-sectional view of a display device capable of switching between two-dimensional and three-dimensional display modes according to a first preferred embodiment of the present invention. the

2 is a schematic top view of a display device switchable between two-dimensional and three-dimensional display modes according to the first preferred embodiment of the present invention. the

FIG. 3 is a schematic diagram of the display device switchable between 2D and 3D display modes in the 3D display mode according to the first preferred embodiment of the present invention. the

FIG. 4 is another implementation aspect of the display device switchable between 2D and 3D display modes in the 3D display mode according to the first preferred embodiment of the present invention. the

FIG. 5 is a schematic top view of a display device capable of switching between two-dimensional and three-dimensional display modes according to a second preferred embodiment of the present invention. the

6 is a schematic cross-sectional view of a display device switchable between 2D and 3D display modes according to a third preferred embodiment of the present invention. the

7 is a schematic cross-sectional view of a display device switchable between 2D and 3D display modes according to a fourth preferred embodiment of the present invention. the

8 is a schematic cross-sectional view of a display device switchable between 2D and 3D display modes according to a fifth preferred embodiment of the present invention. the

9 is a schematic cross-sectional view of a display device switchable between 2D and 3D display modes according to a sixth preferred embodiment of the present invention. the

10 is a schematic cross-sectional view of a display device switchable between 2D and 3D display modes according to a seventh preferred embodiment of the present invention. the

11 is a schematic cross-sectional view of a display device switchable between two-dimensional and three-dimensional display modes according to an eighth preferred embodiment of the present invention. the

12 is a schematic cross-sectional view of a display device switchable between two-dimensional and three-dimensional display modes according to a ninth preferred embodiment of the present invention. the

13 is a schematic cross-sectional view of a display device switchable between two-dimensional and three-dimensional display modes according to a tenth preferred embodiment of the present invention. the

14 is a schematic cross-sectional view of a display device switchable between two-dimensional and three-dimensional display modes according to an eleventh preferred embodiment of the present invention. the

Explanation of reference signs

100, 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1100 display devices with switchable two-dimensional and three-dimensional display modes

102 Switchable display mode device 104 Display panel

104a Display surface 106 First substrate

108 Second Substrate 110 Third Substrate

110a first surface 110b second surface

112 The first liquid crystal layer 114 The second liquid crystal layer

116 First electrode layer 118 Second electrode layer

120 Third electrode layer 122 Fourth electrode layer

124 First Electrode Pattern 126 Dielectric Layer

128 Second electrode pattern 130 Upper substrate

132 Lower substrate 134 Display medium layer

136 Backlight module 138 Display area at first glance

140 Second-eye display area 142 Array circuit layer

144 Pixel electrode 146 Common electrode

148 Effective display area 150 First area

152 Second Region R1 Part 1

R2 Part 2 L1 Part 3

L2 Part Four

Detailed ways

In order for those skilled in the art to have a better understanding of the present invention, preferred embodiments of the present invention are enumerated below, together with the accompanying drawings, to describe in detail the composition and desired effects of the present invention. the

Please refer to Figure 1 and Figure 2. Figure 1 is a schematic cross-sectional view of a display device that can switch between two-dimensional and three-dimensional display modes in the first preferred embodiment of the present invention, and Figure 2 is a display of the switchable two-dimensional and three-dimensional display modes in the first preferred embodiment of the present invention Schematic top view of the device. As shown in FIG. 1 and FIG. 2 , the display device 100 with switchable 2D and 3D display modes includes a switchable display mode device 102 and a display panel 104 , and the switchable display mode device 102 and the display panel 104 are disposed opposite to each other. The switchable display mode device 102 includes a first substrate 106, a second substrate 108, a third substrate 110, a first liquid crystal layer 112, a second liquid crystal layer 114, a first electrode layer 116, a second electrode layer 118 , a third electrode layer 120 and a fourth electrode layer 122 . The first substrate 106 is disposed opposite to the second substrate 108 , and the third substrate 110 is disposed between the first substrate 106 and the second substrate 108 . In this embodiment, the first substrate 106, the second substrate 108, and the third substrate 110 are made of transparent substrates, such as glass substrates, quartz substrates, plastic substrates, the flexible substrates mentioned above, or other suitable substrates mentioned above . The first liquid crystal layer 112 is disposed between the first substrate 106 and the third substrate 110 . The first electrode layer 116 is disposed on the surface of the first substrate 106 facing the first liquid crystal layer 112 , and is located between the first substrate 106 and the first liquid crystal layer 112 . The third substrate 110 has a first surface 110a facing the first liquid crystal layer 112 and a second surface 110b opposite to the first surface 110a, and the second electrode layer 118 is disposed on the first surface 110a of the third substrate 110 above, and between the third substrate 110 and the first liquid crystal layer 112 . Thus, the first substrate 106 , the first electrode layer 116 , the first liquid crystal layer 112 , the second electrode layer 118 and the third substrate 108 can constitute a parallax barrier panel. Moreover, one of the first electrode layer 116 and the second electrode layer 118 has a plurality of first electrode patterns 124 parallel to each other, and each first electrode pattern 124 is arranged sequentially along an arrangement direction. In this embodiment, the second electrode layer 118 has first electrode patterns 124 , and each of the first electrode patterns 124 is a strip-shaped electrode extending along the extending direction of the vertical arrangement direction. The first electrode layer 116 does not have the first electrode pattern 124 , that is, the first electrode layer 116 is a planar electrode, but the present invention is not limited thereto. the

In the three-dimensional display mode, different electric fields are provided between the first electrode layer 116 and each first electrode pattern 124 to control the liquid crystal layer 112 located between the first electrode layer 116 and each first electrode pattern 124. The rotation angle of the liquid crystal molecules presents a grid structure in which light and dark are alternately arranged. It is worth mentioning that each of the first electrode patterns 124 is preferably disposed adjacent to the first liquid crystal layer 112, so that the electric field generated between the first electrode layer 116 and each of the first electrode patterns 124 has a sufficient magnitude to displace the first liquid crystal layer. The liquid crystal molecules in 112 rotate to a dark state or a bright state, so as to present an obvious contrast between light and dark. Moreover, in the two-dimensional display mode, only the same voltage difference needs to be provided between each first electrode pattern 124 and the first electrode layer 116, and the parallax barrier panel can present a transparent state, so that light can directly pass through without With raster effect. the

In addition, the second liquid crystal layer 114 is disposed between the second substrate 108 and the third substrate 110 , and the third electrode layer 120 is disposed between the second electrode layer 118 and the second liquid crystal layer 114 . In this embodiment, the third electrode layer 120 is disposed on the first surface 110 a of the third substrate 110 , and the third electrode layer 120 is located below the second electrode layer 118 , between the second electrode layer 118 and the third electrode layer 118 . between the substrates 110. Moreover, a dielectric layer 126 is interposed between the third electrode layer 120 and the second electrode layer 118 for electrically isolating the third electrode layer 120 and the second electrode layer 118 . The fourth electrode layer 122 is disposed on the surface of the second substrate 108 facing the second liquid crystal layer 114 , and is located between the second substrate 108 and the second liquid crystal layer 114 . Thus, the third substrate 110 , the third electrode layer 120 , the second liquid crystal layer 114 , the fourth electrode layer 122 and the second substrate 108 can constitute a liquid crystal lens panel (or called an electrically driven liquid crystal lens). In addition, one of the third electrode layer 120 and the fourth electrode layer 122 has a plurality of second electrode patterns 128 . In this embodiment, the third electrode layer 120 has second electrode patterns 128 parallel to each other, and the second electrode patterns 128 are strip-shaped electrodes extending along the extending direction of the first electrode patterns 124 . The fourth electrode layer 122 does not have the second electrode pattern 128 , that is, the fourth electrode layer 122 is a planar electrode. However, the third electrode layer 120 and the fourth electrode layer 122 of the present invention are not limited thereto, and the shape, extension direction or size of the second electrode pattern of the present invention can be based on the lens effect to be presented and the matching parallax barrier panel Corresponding adjustments are made, or the third electrode layer and the fourth electrode layer can have the second electrode pattern at the same time, so as to achieve the desired lens effect. In other embodiments of the present invention, the switchable display mode device may further include at least two polarizers respectively disposed on the first substrate and under the second substrate, but is not limited thereto. the

In the three-dimensional display mode, an appropriate electric field is provided between each second electrode pattern 128 and the fourth electrode layer 122 to drive the second liquid crystal layer 114 disposed between each second electrode pattern 128 and the fourth electrode layer 122 The liquid crystal molecules in the liquid crystal, and then present a lens effect. Moreover, in the two-dimensional display mode, only the same voltage difference needs to be provided between the second electrode patterns 128 and the fourth electrode layer 122, and the liquid crystal lens panel can present a transparent state, so that light can directly pass through without Has the refraction effect of a lens. the

It should be noted that, since the second electrode layer 118 having the first electrode pattern 124 and the third electrode layer 120 having the second electrode pattern 128 are integrated on the upper surface 110a of the third substrate 110 in this embodiment, the The first electrode pattern 124 and the second electrode pattern 128 can be formed by a lithographic etching process, an inkjet process, or a screen printing process, so that the relative positional relationship between the first electrode pattern 124 and the second electrode pattern 128 can have The alignment accuracy of the lithographic etching process can further solve the problem of poor alignment accuracy when laminating the LCD lens panel and the parallax barrier panel. the

In addition, in this embodiment, the display panel 104 is disposed under the switchable display mode device 102, that is, the second substrate 108 is disposed between the display surface 104a of the display panel 104 and the first substrate 106, so that the display panel 104 The generated images can sequentially pass through the liquid crystal lens panel and the parallax barrier panel of the switchable display mode device 102 to generate stereoscopic images, but the invention is not limited thereto. The display panel 104 includes an upper substrate 130 , a lower substrate 132 and a display medium layer 134 . The upper substrate 130 is disposed opposite to the lower substrate 132 , and the upper substrate 130 is disposed between the switchable display mode device 102 and the lower substrate 132 , that is, the outer surface of the upper substrate 130 is the display surface 104 a of the display panel 104 . The display medium layer 132 is disposed between the upper substrate 130 and the lower substrate 132 , and the type of the display panel 104 can be determined according to the material of the display medium layer 134 . In this embodiment, the display medium layer 134 includes a non-self-luminous display medium, such as liquid crystal, electrowetting, electrophoresis, electric dust, or other suitable materials or a combination of the above materials, and the display panel 104 can be called a non-self-luminous display medium. Illuminated display panel. Moreover, the display device 100 in this embodiment that can switch between 2D and 3D display modes further includes a backlight module 136 disposed under the display panel 104 and used as a backlight for the display panel 104 . The display panel of the present invention is not limited to a non-self-luminous display panel, and can also be a self-luminous display panel. In other embodiments of the present invention, the display medium layer may also include organic light-emitting materials, inorganic light-emitting materials, or other suitable materials or a combination of the above materials, and the display panel is a self-luminous display panel, such as: organic electroluminescence display panel, plasma display panel or field emission display panel, etc., but the present invention is not limited thereto. Wherein, the organic luminescent material may include a polymer material or a low molecular material, and the organic luminescent material and/or the inorganic luminescent material includes a phosphorescent material and/or a fluorescent material, but is not limited thereto. the

In this embodiment, the upper substrate 130 and the lower substrate 132 are made of transparent substrates, such as glass substrates, quartz substrates, plastic substrates, the flexible substrates mentioned above, or other suitable substrates mentioned above, but not limited thereto. In other embodiments of the present invention, when the display panel is a self-illuminating display panel, the upper substrate is made of a transparent substrate, and the lower substrate is made of a reflective substrate, for example: the substrate is coated with a reflective layer or the bottom of the transparent substrate Coated with a reflective layer, but not limited to this. Alternatively, both the upper substrate and the lower substrate may also be made of transparent substrates to serve as a double-sided display device. the

Moreover, the display panel 104 has a plurality of first-eye display areas 138 and a plurality of second-eye display areas 140 , and the first-eye display areas 138 and the second-eye display areas 140 are arranged in a matrix. The first-eye display area 138 is used to display the image viewed by one eye of the viewer, and the second-eye display area 140 is used to display the image viewed by the other eye of the viewer. Each first-eye display area 138 and each second-eye display area 140 are alternately arranged in sequence along the column direction of the matrix arrangement, and in each row direction of the matrix arrangement, the entire row is the first-eye display area 138 or the second-eye display area. Area 140. In this embodiment, the column direction of the matrix arrangement is roughly the same as the arrangement direction of the first electrode patterns 124, and each first electrode pattern 124 is respectively arranged on any two adjacent first-eye display regions 138 and each second Between the eye display area 140. In other words, a part of each first electrode pattern 124 partially overlaps with the first-eye display area 138 in the same row, and another part of each first electrode pattern 124 overlaps with the second-eye display area 138 adjacent to the first-eye display area 138. Regions 140 partially overlap. the

The display panel 104 of this embodiment further includes an array circuit layer 142 and a plurality of pixel electrodes 144 . The array circuit layer 142 and the pixel electrodes 144 are disposed on the inner surface of the lower substrate 132 , and the pixel electrodes 144 are disposed between the array circuit layer 142 and the display medium layer 134 . The pixel electrodes 144 are arranged in a matrix, and the array circuit layer 142 is electrically connected to each pixel electrode 144 for transmitting display signals to the pixel electrodes 144 . The array circuit layer 142 may include a plurality of thin film transistors, a plurality of data lines, a plurality of scanning lines, a plurality of common lines and/or a plurality of power lines, for transmitting the display signal of the display panel 104 to each pixel electrode 144, However, the array circuit layer of the present invention is not limited thereto, and a corresponding design can be made according to the type of the display panel. In addition, in the above-mentioned display panel, if a non-self-luminous display medium layer, such as liquid crystal, is used and driven by a vertical electric field, a common electrode 146 is further included between the display medium layer 134 and the upper substrate 130 . If a non-self-luminous display medium layer is used, such as liquid crystal, and driven by a horizontal electric field, the common electrode 146 can be selectively arranged between the display medium layer 134 and the upper substrate 130 or between the display medium layer 134 and the lower substrate 132 between. Generally, in a display panel using a non-self-luminous display medium layer driven by a horizontal electric field, the common electrode 146 is preferably disposed between the display medium layer 134 and the lower substrate 132 . If a self-luminous display medium layer is used, the common electrode 146 can be selectively disposed between the display medium layer 134 and the upper substrate 130 to be used as an electrode. the

Moreover, the area of each pixel electrode 144 respectively defines an effective display area 148 for displaying a primary pixel of an image. The effective display area 148 can be divided into the first color effective display area 148, the second color effective display area 148 and the third color effective display area 148, and the first color, the second color and the third color can be mixed into white, for example: The first color is red, the second color is green, and the third color is blue, but not limited thereto. Each effective display area 148 of the first color, each effective display area 148 of the second color and each effective display area 148 of the third color form a pixel. In this embodiment, the effective display areas 148 in the same row are effective display areas 148 with the same color, that is, the effective display areas 148 in the same row are only the first color effective display area 148 and the second color effective display area. 148 or the third color effective display area 148, and in the effective display area 148 of the same column, each first color effective display area 148, each second color effective display area 148 and each third color effective display area 148 are sequentially along The column directions are alternately arranged sequentially, but the present invention is not limited thereto. In other embodiments of the present invention, the arrangement of the effective display areas of the Nth column can be that each effective display area of the first color, each effective display area of the second color, and each effective display area of the third color are arranged alternately in sequence. The arrangement of the effective display areas of N+1 columns can be effective display areas of each second color/effective display area of each third color, effective display area of each third color/effective display area of each first color and effective display area of each first color The display areas/effective display areas of each second color are arranged alternately in sequence, and the arrangement of the effective display areas in the N+2th column can be effective display areas of each third color/effective display areas of each second color, each first color Effective display areas/effective display areas of each first color and effective display areas of second colors/effective display areas of first colors are arranged alternately in sequence, wherein N is a positive integer. Alternatively, the arrangement of the effective display area of the first color, the effective display area of the second color and the effective display area of the third color may also be a mosaic arrangement or a triangle arrangement. Of course, the above-mentioned colors can also use the colors on the color coordinates, then at least two colors can be mixed to produce the color of white light, and the effective display areas are not limited to 3, and can also be 2, 4, 5, 6 One and so on, and it is not limited that the shape or size of the effective display area can be changed according to the needs of the design. the

In this embodiment, each first-eye display area 138 and each second-eye display area 140 are respective effective display areas 148 , but the invention is not limited thereto. In other embodiments of the present invention, each first-eye display area and each second-eye display area can also be formed by a pixel, and the arrangement of the effective display areas in each pixel can be determined according to actual requirements. the

The following will further illustrate the operation method of displaying two-dimensional images and three-dimensional images by the display device capable of switching between two-dimensional and three-dimensional display modes in this embodiment, and the first-eye display area is an example of displaying a right-eye image, while the second-eye display area Take displaying the image for the left eye as an example, but the present invention is not limited thereto. Please refer to FIG. 3 , and refer to FIG. 1 and FIG. 2 together. FIG. 3 is a schematic diagram of the display device switchable between 2D and 3D display modes in the 3D display mode according to the first preferred embodiment of the present invention. As shown in FIGS. 1 to 3 , the right-eye R image is divided into a first part R1 and a second part R2 , and the left-eye L image is divided into a third part L1 and a fourth part L2 . First, in the first time period, the first-eye display area 138 displays the first portion R1, and the second-eye display area 140 displays the third portion L1. At this time, the parallax barrier panel will alternately display the first region 150 and the second region 152 sequentially along the column direction. Moreover, the odd-numbered first electrode patterns 124 are applied with a voltage, and the even-numbered first electrode patterns 124 are not applied with a voltage, so that the first region 150 corresponding to the odd-numbered first electrode patterns 124 presents a shielding state, and the first region 150 corresponding to the even-numbered The second region 152 of an electrode pattern 124 is in a transparent state. A voltage is applied to the liquid crystal lens panel to assume a lens state. Therefore, the first part R1 will be refracted by the liquid crystal lens panel and blocked by the first region 150 in the shielding state, and emitted from the second region 152 in the transparent state to be displayed toward the right eye R of the viewer, and the third part L1 will be refracted by the liquid crystal lens panel, blocked by the first region 150 in the shielding state, and emitted from the second region 152 in the transparent state, and displayed toward the left eye L of the viewer. Then, in the second period following the first period, the first-eye display area 138 displays the second portion R2, and the second-eye display area 140 displays the fourth portion L2. At this time, no voltage is applied to the odd number of first electrode patterns 124, and a voltage is applied to the even number of first electrode patterns 124, so that the first region 150 corresponding to the odd number of first electrode patterns 124 presents a transparent state, and the first region 150 corresponding to the even number of first electrode patterns 124 presents a transparent state. The second region 152 of the first electrode pattern 124 exhibits a shielded state. Voltage is still applied to the liquid crystal lens panel to assume a lens state. Therefore, the second part R2 will be refracted by the liquid crystal lens panel, pass through the first region 150 having a transparent state, and display toward the viewer's right eye R, and the fourth part L2 will be refracted by the liquid crystal lens panel, pass through the transparent state The first area 150 of , and displayed toward the left eye L of the viewer. It can be seen from this that the right eye R of the viewer can receive the first part R1 and the second part R2 of the right eye image, and watch the right eye image, and his left eye L can receive the third part L1 and the second part R2 of the left eye image. In the fourth part L2, the left-eye image is watched, so the viewer can watch a three-dimensional image. When the display device 100 that can switch between two-dimensional and three-dimensional display modes is in the two-dimensional display mode, no voltage is applied to the first electrode pattern 124, so that the parallax barrier panel is in a transparent state, and the liquid crystal lens panel is not applied with a voltage, so that it appears transparent state. Thus, the two-dimensional image displayed on the display panel 100 can be directly displayed to the viewer. The parallax barrier panel and the liquid crystal lens panel of the present invention are not limited to being in a transparent state when no voltage is applied, they can also be in a transparent state when a voltage is applied, and show a shielding state and a lens state when no voltage is applied. the

The present invention is not limited to the above operation mode. Please refer to FIG. 4 . FIG. 4 is another implementation aspect of the display device switchable between 2D and 3D display modes in the 3D display mode according to the first preferred embodiment of the present invention. As shown in FIG. 4, compared with the above-mentioned implementation, this implementation changes the lens curvature of the liquid crystal lens panel, so that the first-eye display area 138 and the second-eye display area 140 are in the first period and the second period. The displayed images are shown to different eyes respectively. In other words, during the first period, the first-eye display area 138 displays the first portion R1, and the second-eye display area 140 displays the third portion L1. Moreover, the odd-numbered first electrode patterns 124 are applied with a voltage, and the even-numbered first electrode patterns 124 are not applied with a voltage, so that the first region 150 corresponding to the odd-numbered first electrode patterns 124 presents a shielding state, and the first region 150 corresponding to the even-numbered The second region 152 of an electrode pattern 124 is in a transparent state. In the second period, the first-eye display area 138 displays the fourth portion L2, and the second-eye display area 140 displays the second portion R2. No voltage is applied to the odd number of first electrode patterns 124, and a voltage is applied to the even number of first electrode patterns 124, so that the first region 150 corresponding to the odd number of first electrode patterns 124 presents a transparent state, and corresponds to the even number of first electrodes The second region 152 of the pattern 124 exhibits a masked state. Thus, the viewer can watch a three-dimensional image. the

It is worth noting that, in the case of a three-dimensional display mode, the display device 100 of this embodiment that can switch between two-dimensional and three-dimensional display modes integrates a parallax barrier panel and a liquid crystal lens panel to present a three-dimensional display with the same resolution as the display panel 104. image, and integrating the second electrode layer 118 with the first electrode pattern 124 and the third electrode layer 120 with the second electrode pattern 128 on the same surface of the third substrate 110 can have better alignment accuracy , so as to solve the problem of poor alignment accuracy when laminating the liquid crystal lens panel and the parallax barrier panel. Moreover, in the case of a two-dimensional display mode, the display device 100 of this embodiment that can switch between two-dimensional and three-dimensional display modes does not need to use two periods to display two-dimensional images, so the display frequency of the display panel 100 can be reduced, and The load of the driving chip of the display panel 100 is reduced. the

The display device capable of switching two-dimensional and three-dimensional display modes of the present invention is not limited to the above-mentioned embodiments. The following will continue to disclose other embodiments or variants of the present invention. However, in order to simplify the description and highlight the differences between the embodiments or variants, the same reference numerals are used to mark the same components, and the repetitive parts will not be repeated. the

The first electrode layer and the second electrode layer of the present invention may both have a first electrode pattern. Please refer to Figure 5. FIG. 5 is a schematic top view of a display device capable of switching between two-dimensional and three-dimensional display modes according to a second preferred embodiment of the present invention. As shown in FIG. 5, compared with the switchable display mode device of the first embodiment above, the first electrode layer 116 and the second electrode layer 118 of the display device 200 switchable two-dimensional and three-dimensional display modes of this embodiment are respectively There are first electrode patterns 124 , and the first electrode patterns 124 of the first electrode layer 116 are parallel to each other and arranged alternately along an arrangement direction (ie, the extending direction of the first electrode patterns in the first embodiment). Moreover, the extending direction of the first electrode patterns 124 of the first electrode layer 116 (ie, the arrangement direction of the first electrode patterns in the first embodiment) intersects with the extending direction of the first electrode patterns 124 in the second electrode layer 118 . the

Please refer to Figure 6. 6 is a schematic cross-sectional view of a display device switchable between 2D and 3D display modes according to a third preferred embodiment of the present invention. As shown in FIG. 6, compared with the first embodiment, the third electrode layer 120 of the display device 300 switchable between two-dimensional and three-dimensional display modes of this embodiment does not have the second electrode pattern 128, but is a planar electrode. Moreover, the fourth electrode layer 122 has a second electrode pattern 128 . the

Please refer to Figure 7. 7 is a schematic cross-sectional view of a display device switchable between 2D and 3D display modes according to a fourth preferred embodiment of the present invention. As shown in FIG. 7 , compared with the first embodiment, the second electrode layer 118 of the display device 400 switchable between 2D and 3D display modes of this embodiment does not have the first electrode pattern 124 , but is a planar electrode. Moreover, the first electrode layer 116 has a first electrode pattern 124 . the

Please refer to Figure 8. 8 is a schematic cross-sectional view of a display device switchable between 2D and 3D display modes according to a fifth preferred embodiment of the present invention. As shown in FIG. 8 , compared with the first embodiment, the second electrode layer 118 of the display device 500 that can switch two-dimensional and three-dimensional display modes of this embodiment does not have the first electrode pattern 124, and the third electrode layer 120 There is no second electrode pattern 128 . Both the second electrode layer 118 and the third electrode layer 120 are planar electrodes. Moreover, the first electrode layer 116 has a first electrode pattern 124 , and the fourth electrode layer 122 has a second electrode pattern 128 . the

Please refer to Figure 9. 9 is a schematic cross-sectional view of a display device switchable between 2D and 3D display modes according to a sixth preferred embodiment of the present invention. As shown in FIG. 9 , compared with the first embodiment, the third electrode layer 120 with the second electrode pattern 128 of the display device 600 of this embodiment that can switch between two-dimensional and three-dimensional display modes is arranged on the third substrate 110 on the second surface 110b of the second substrate 110 and between the third substrate 110 and the second liquid crystal layer 114 . Therefore, the third substrate 110 can have the function of electrically isolating the second electrode layer 118 with the first electrode pattern 124 from the third electrode layer 120 with the second electrode pattern 128, and it is relatively unnecessary to consider the accuracy of alignment. question of degree. Therefore, the switchable display mode device 102 of this embodiment does not need to provide a dielectric layer to electrically isolate the second electrode layer 118 and the third electrode layer 120 , but it is not limited thereto. In other embodiments of the present invention, the first electrode layer and the second electrode layer may respectively have first electrode patterns, and the extension direction of each first electrode pattern in the first electrode layer is staggered with that of each first electrode pattern in the second electrode layer. An extending direction of an electrode pattern. the

Please refer to Figure 10. 10 is a schematic cross-sectional view of a display device switchable between 2D and 3D display modes according to a seventh preferred embodiment of the present invention. As shown in FIG. 10 , compared with the sixth embodiment, the third electrode layer 120 of the display device 700 switchable between 2D and 3D display modes of this embodiment does not have the second electrode pattern 128 , but is a planar electrode. Moreover, the fourth electrode layer 122 has a second electrode pattern 128 . the

Please refer to Figure 11. 11 is a schematic cross-sectional view of a display device switchable between two-dimensional and three-dimensional display modes according to an eighth preferred embodiment of the present invention. As shown in FIG. 11 , compared with the sixth embodiment, the second electrode layer 118 of the display device 800 that can switch two-dimensional and three-dimensional display modes of this embodiment does not have the first electrode pattern 124, and the third electrode layer 120 There is no second electrode pattern 128 . Both the second electrode layer 118 and the third electrode layer 120 are planar electrodes. Moreover, the first electrode layer 116 has a first electrode pattern 124 , and the fourth electrode layer 122 has a second electrode pattern 128 . the

Please refer to Figure 12. 12 is a schematic cross-sectional view of a display device switchable between two-dimensional and three-dimensional display modes according to a ninth preferred embodiment of the present invention. As shown in FIG. 12 , compared with the sixth embodiment, the second electrode layer 118 of the display device 900 switchable between 2D and 3D display modes of this embodiment does not have the first electrode pattern 124 , but is a planar electrode. Moreover, the first electrode layer 116 has a first electrode pattern 124 . the

Please refer to Figure 13. 13 is a schematic cross-sectional view of a display device switchable between two-dimensional and three-dimensional display modes according to a tenth preferred embodiment of the present invention. As shown in FIG. 13 , compared with the first embodiment, the display panel 104 of the display device 1000 that can switch two-dimensional and three-dimensional display modes of this embodiment is a non-self-luminous display panel, and is arranged on the switchable display mode device 102 above, and the backlight module 136 is disposed below the switchable display mode device 102 . In other words, the switchable display mode device 102 of this embodiment is disposed between the display panel 104 and the backlight module 136 , and the parallax barrier panel is adjacent to the display panel 104 , and the liquid crystal lens panel is adjacent to the backlight module 136 . the

Please refer to Figure 14. 14 is a schematic cross-sectional view of a display device switchable between two-dimensional and three-dimensional display modes according to an eleventh preferred embodiment of the present invention. As shown in FIG. 14 , compared with the first embodiment, the display panel 104 of the display device 1100 in this embodiment that can switch two-dimensional and three-dimensional display modes is a self-luminous display panel, and is arranged on the switchable display mode device 102. Below, the display device 1100 that can switch between 2D and 3D display modes does not have a backlight module. the

In summary, the present invention integrates the second electrode layer with the first electrode pattern and the third electrode layer with the second electrode pattern on the same surface of the third substrate, so when making the first electrode pattern and the second electrode The pattern can be formed by lithographic etching process, inkjet process or screen printing process, so that the relative positional relationship between the first electrode pattern and the second electrode pattern can have better alignment accuracy, and then solve the problem of bonding liquid crystals. The alignment accuracy between the lens panel and the parallax barrier panel is poor. Moreover, the present invention integrates the parallax barrier panel and the liquid crystal lens panel, not only can present a 3D image with the same resolution as the display panel in the 3D display mode, but also does not need to use The two-dimensional image is displayed in two periods, thereby reducing the display frequency of the display panel and reducing the load of the driver chip of the display panel. the

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the claims of the present invention shall fall within the scope of protection of the present invention. the

Claims (22)

1. a display device for changeable two dimension and three-dimensional display mode, comprising:

One switchable display modes device, comprises:

One first substrate;

One second substrate, is oppositely arranged with this first substrate;

One the 3rd substrate, is arranged between this first substrate and this second substrate;

One first liquid crystal layer, is arranged between this first substrate and the 3rd substrate;

One second liquid crystal layer, is arranged between this second substrate and the 3rd substrate;

One first electrode layer, is arranged between this first liquid crystal layer and this first substrate;

One the second electrode lay, is arranged between this first liquid crystal layer and the 3rd substrate, and wherein the wherein one of this first electrode layer and this second electrode lay has multiple the first electrode pattern be parallel to each other, and respectively this first electrode pattern is along an orientation sequential;

One the 3rd electrode layer, is arranged between this second electrode lay and this second liquid crystal layer, and the 3rd electrode layer is positioned at the below of this second electrode lay; And

One the 4th electrode layer, is arranged between this second liquid crystal layer and this second substrate; And

One display panel, with the corresponding setting of this switchable display modes device, this display panel has multiple First view viewing area and multiple Second Sight viewing area, and wherein respectively this first electrode pattern is arranged at wantonly two adjacent respectively these First view viewing areas and respectively between this Second Sight viewing area respectively.

2. the display device of changeable two dimension as claimed in claim 1 and three-dimensional display mode, is characterized in that, respectively this First view viewing area and each this Second Sight viewing area are sequentially alternately arranged along this orientation.

3. the display device of changeable two dimension as claimed in claim 1 and three-dimensional display mode, it is characterized in that, 3rd substrate has a first surface and one and the second surface of this first surface opposition side, and the 3rd electrode layer and this second electrode lay are all arranged on this first surface of the 3rd substrate, and be folded with a dielectric layer between the 3rd electrode layer and this second electrode lay.

4. the display device of changeable two dimension as claimed in claim 3 and three-dimensional display mode, is characterized in that, the 3rd electrode layer and the 4th one of them person of electrode layer have multiple second electrode pattern.

5. the display device of changeable two dimension as claimed in claim 4 and three-dimensional display mode, is characterized in that, this first electrode layer has respectively this first electrode pattern, and this second electrode lay does not have respectively this first electrode pattern.

6. the display device of changeable two dimension as claimed in claim 5 and three-dimensional display mode, is characterized in that, the 3rd electrode layer has respectively this second electrode pattern, and the 4th electrode layer does not have respectively this second electrode pattern.

7. the display device of changeable two dimension as claimed in claim 5 and three-dimensional display mode, is characterized in that, the 4th electrode layer has respectively this second electrode pattern, and the 3rd electrode layer does not have respectively this second electrode pattern.

8. the display device of changeable two dimension as claimed in claim 4 and three-dimensional display mode, is characterized in that, this second electrode lay has these the first electrode patterns, and this first electrode layer does not have these the first electrode patterns.

9. the display device of changeable two dimension as claimed in claim 8 and three-dimensional display mode, is characterized in that, the 3rd electrode layer has respectively this second electrode pattern, and the 4th electrode layer does not have respectively this second electrode pattern.

10. the display device of changeable two dimension as claimed in claim 8 and three-dimensional display mode, is characterized in that, the 4th electrode layer has respectively this second electrode pattern, and the 3rd electrode layer does not have respectively this second electrode pattern.

The display device of 11. changeable two dimensions as claimed in claim 3 and three-dimensional display mode, it is characterized in that, this first electrode layer and this second electrode lay have these the first electrode patterns respectively, wherein, in this first electrode layer, respectively the bearing of trend of this first electrode pattern crisscrosses the bearing of trend of respectively this first electrode pattern in this second electrode lay.

The display device of 12. changeable two dimensions as claimed in claim 1 and three-dimensional display mode, it is characterized in that, 3rd substrate has a first surface and one and the second surface of this first surface opposition side, and this second electrode lay is arranged on this first surface of the 3rd substrate, and the 3rd electrode layer is arranged on this second surface of the 3rd substrate.

The display device of 13. changeable two dimensions as claimed in claim 12 and three-dimensional display mode, is characterized in that, the 3rd electrode layer and the 4th one of them person of electrode layer have multiple second electrode pattern.

The display device of 14. changeable two dimensions as claimed in claim 13 and three-dimensional display mode, is characterized in that, this first electrode layer has respectively this first electrode pattern, and this second electrode lay does not have respectively this first electrode pattern.

The display device of 15. changeable two dimensions as claimed in claim 14 and three-dimensional display mode, is characterized in that, the 3rd electrode layer has respectively this second electrode pattern, and the 4th electrode layer does not have respectively this second electrode pattern.

The display device of 16. changeable two dimensions as claimed in claim 14 and three-dimensional display mode, is characterized in that, the 4th electrode layer has respectively this second electrode pattern, and the 3rd electrode layer does not have respectively this second electrode pattern.

The display device of 17. changeable two dimensions as claimed in claim 13 and three-dimensional display mode, is characterized in that, this second electrode lay has respectively this first electrode pattern, and this first electrode layer does not have respectively this first electrode pattern.

The display device of 18. changeable two dimensions as claimed in claim 17 and three-dimensional display mode, is characterized in that, the 3rd electrode layer has respectively this second electrode pattern, and the 4th electrode layer does not have respectively this second electrode pattern.

The display device of 19. changeable two dimensions as claimed in claim 17 and three-dimensional display mode, is characterized in that, the 4th electrode layer has respectively this second electrode pattern, and the 3rd electrode layer does not have respectively this second electrode pattern.

The display device of 20. changeable two dimensions as claimed in claim 13 and three-dimensional display mode, it is characterized in that, this first electrode layer and this second electrode lay have these the first electrode patterns respectively, wherein, in this first electrode layer, respectively the bearing of trend of this first electrode pattern crisscrosses the bearing of trend of respectively this first electrode pattern in this second electrode lay.

The display device of 21. changeable two dimensions as claimed in claim 1 and three-dimensional display mode, it is characterized in that, this display panel is positioned at the top of this switchable display modes device.

The display device of 22. changeable two dimensions as claimed in claim 1 and three-dimensional display mode, it is characterized in that, this display panel is positioned at the below of this switchable display modes device.