TWI471665B - 2d and 3d switchable display device - Google Patents

Description

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

The invention relates to a display device capable of switching two-dimensional and three-dimensional display modes, in particular to a naked eye type switchable two-dimensional and three-dimensional display mode display device integrating a parallax barrier panel and a liquid crystal lens panel.

In recent years, with the continuous improvement of related technologies of displays, the development and application of stereoscopic display technology has become more and more vigorous. The main principle of the stereoscopic display technology is that the left eye and the right eye of the viewer respectively receive different images, and the images received by the left eye and the right eye are analyzed and overlapped by the brain, so that the viewer perceives the layering of the image. And depth, which in turn produces a three-dimensional sense.

At present, the stereoscopic display technology can be roughly divided into two categories: glasses (glasses) and glasses (naked eyes). A time-series stereoscopic display device that generally needs to wear glasses alternately displays a left-eye image for left-eye viewing and a right-eye image for right-eye viewing in a scanning manner, and the viewer needs to match shutter glasses or Polarized glasses, to allow the viewer's left eye to view only the left eye image and not to view the right eye image, and to allow the viewer's right eye to view only the right eye image and not to view the left eye image. This achieves the effect of three-dimensional display. In contrast, a naked-eye stereoscopic display device does not need to be paired with glasses, but a parallax barrier is provided 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 left-eye image and Display the pixels of the right eye image to reduce the resolution of the 3D image.

Since the general display device is not limited to use only for stereoscopic display, it is necessary to have a switching function of two-dimensional and three-dimensional display modes. In a display device that can generally switch between two-dimensional and three-display modes, since the user is mostly located directly in front of the display device during viewing, the lenticular lens structure is usually added to the display panel in the display device, and a large angle is adopted. The light is concentrated toward the front view. However, there is still a problem of accurate alignment between the lenticular lens and the parallax barrier, which in turn affects the quality of the displayed picture. Moreover, when a two-dimensional image is displayed on a display device that can switch between two-dimensional and three-dimensional display modes with a lenticular lens, the two-dimensional image needs to be divided into two parts, and the two parts are sequentially displayed by the time series method. Two-dimensional images, so the display frequency of the display panel needs to be increased, thereby increasing the load of the driving wafer of the display panel.

One of the objects of the present invention is to provide a display device that can switch two-dimensional and three-dimensional display modes to solve the aforementioned conventional problems.

To achieve the above object, the present invention provides a display device capable of switching two-dimensional and three-dimensional display modes, including 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 disposed 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 of the first electrode patterns is along a The arrangement direction is arranged 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 disposed corresponding to the switchable display mode device, wherein the display panel has a plurality of first eye display regions and a plurality of second eye display regions, wherein each of the first electrode patterns is respectively disposed on each of the adjacent first eye displays Between the area and each of the second eye display areas.

The invention integrates the parallax barrier panel and the liquid crystal lens panel, can not only display the three-dimensional image with the same resolution as the display panel in the case of the three-dimensional display mode, but also does not need to utilize two in the case of the two-dimensional display mode. The time period is used to display the two-dimensional image, thereby reducing the display frequency of the display panel and reducing the load on the driving wafer of the display panel.

The present invention will be further understood by those of ordinary skill in the art to which the present invention pertains. .

Please refer to Figure 1 and Figure 2. 1 is a schematic cross-sectional view showing a display device capable of switching two-dimensional and three-dimensional display modes according to a first preferred embodiment of the present invention, and the second is a switchable two-dimensional and three-dimensional display mode according to the first preferred embodiment of the present invention. A top view of the display device. As shown in FIGS. 1 and 2, the display device 100 capable of switching two-dimensional and three-dimensional 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 opposed to each other. Settings. 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, and a second electrode. The 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 formed of a transparent substrate, such as a glass substrate, a quartz substrate, a plastic substrate, the flexible substrate, or other suitable substrates described 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 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. The upper substrate is located between the third substrate 110 and the first liquid crystal layer 112. Thereby, 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 may 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 that are parallel to each other, and each of the first electrode patterns 124 is sequentially arranged along an arrangement direction. In this embodiment, the second electrode layer 118 has a first electrode pattern 124, and each of the first electrode patterns 124 is an elongated electrode extending in a direction in which the vertical alignment direction extends. 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 invention is not limited thereto.

In the three-dimensional display mode, a different electric field is provided between the first electrode layer 116 and each of the first electrode patterns 124 for controlling the first liquid crystal layer 112 between the first electrode layer 116 and each of the first electrode patterns 124. The rotation angle of the liquid crystal molecules, in turn, presents a fence structure in which light and dark are alternately arranged. It is to be noted that each of the first electrode patterns 124 is preferably disposed adjacent to the first liquid crystal layer 112 such that the electric field generated between the first electrode layer 116 and each of the first electrode patterns 124 has a sufficient size to be the first liquid crystal layer. The liquid crystal molecules in 112 are rotated to a dark state or a bright state to exhibit a distinct bright-dark contrast. Moreover, in the two-dimensional display mode, only the same voltage difference needs to be provided between each of the first electrode patterns 124 and the first electrode layer 116, and the parallax barrier panel can exhibit a transparent state, so that the light can directly penetrate without Has the effect of a grating.

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 110a of the third substrate 110, and the third electrode layer 120 is located below the second electrode layer 118, and is disposed between the second electrode layer 118 and the third electrode layer 118. Between the substrates 110. 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 between the second substrate 108 and the second liquid crystal layer 114. Thereby, 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 may constitute a liquid crystal lens panel (or referred to as 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 the present embodiment, the third electrode layer 120 has second electrode patterns 128 that are parallel to each other, and the second electrode patterns 128 are elongated electrodes and extend 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, extending direction or size of the second electrode pattern of the present invention may be depending on the lens effect to be presented and the parallax barrier panel to be matched. Corresponding adjustments may be made, or the third electrode layer and the fourth electrode layer may simultaneously have a second electrode pattern to achieve a desired lens effect. In other embodiments of the present invention, the switchable display mode device may further include at least two polarizers disposed on the first substrate and the second substrate, but is not limited thereto.

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

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, the present embodiment is The first electrode pattern 124 and the second electrode pattern 128 may be formed by a photolithography process, an inkjet process, or a screen printing process, whereby the relative positional relationship between the first electrode pattern 124 and the second electrode pattern 128 may have The alignment accuracy of the lithography process further solves the problem of poor alignment accuracy when the liquid crystal lens panel and the parallax barrier panel are attached.

In addition, in the 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 is The generated picture may sequentially pass through the liquid crystal lens panel and the parallax barrier panel of the switchable display mode device 102, and generate a stereoscopic image, but the present 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 104a 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. Illumination is not a panel. Moreover, the display device 100 of the switchable two-dimensional and three-dimensional display mode of the present embodiment further includes a backlight module 136 disposed under the display panel 104 for use as a backlight of the display panel 104. The display panel of the present invention is not limited to a non-self-luminous display panel, and may also be a self-luminous display panel. In other embodiments of the present invention, the display medium layer may also include an organic light emitting material, an inorganic light emitting material, or other suitable materials or a combination of the above materials, and the display panel is a self-luminous display panel, for example, organic electroluminescent light. A display panel, a plasma display panel, a field emission display panel, or the like, but the present invention is not limited thereto. The organic light-emitting material may include a polymer material or a low molecular material, and the organic light-emitting material and/or the inorganic light-emitting material includes a phosphorescent material and/or a fluorescent material, but is not limited thereto.

In the present embodiment, the upper substrate 130 and the lower substrate 132 are formed of a transparent substrate, such as a glass substrate, a quartz substrate, a plastic substrate, the above flexible substrate, or the other suitable substrate described above, but are not limited thereto. In another embodiment of the present invention, when the display panel is a self-luminous display panel, the upper substrate is composed of a transparent substrate, and the lower substrate is composed of a reflective substrate, for example, the substrate is plated with a reflective layer or a transparent substrate. It is plated with a reflective layer, but is not limited thereto. Alternatively, the upper substrate and the lower substrate may both be formed of a transparent substrate to serve as a double-sided display device.

Moreover, the display panel 104 has a plurality of first eye display regions 138 and a plurality of second eye display regions 140, and the first eye display region 138 and the second eye display region 140 are arranged in a matrix. The first eye display area 138 is for displaying an image viewed by one eye of the viewer, and the second eye display area 140 is for displaying an image viewed by the other eye of the viewer. Each of the first-eye display area 138 and each of the second-eye display areas 140 are alternately arranged in the order of the matrix arrangement, and the first-eye display area 138 or the second-eye display is displayed in each row direction of the matrix arrangement. Area 140. In this embodiment, the column direction of the matrix arrangement is approximately the same as the arrangement direction of the first electrode patterns 124, and each of the first electrode patterns 124 is disposed on each of the adjacent first eye display regions 138 and each second. The eye is displayed between the areas 140. In other words, one portion of each of the first electrode patterns 124 partially overlaps the first eye display region 138 of the same row, and another portion of each of the first electrode patterns 124 and the second eye adjacent to the first eye display region 138 are displayed. Areas 140 partially overlap.

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 electrode 144 are disposed on the inner surface of the lower substrate 132, and the pixel electrode 144 is 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 of the pixel electrodes 144 for transmitting the 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 scan lines, a plurality of common lines, and/or a plurality of power lines for transmitting the display signals of the display panel 104 to the respective pixel electrodes 144. However, the array circuit layer of the present invention is not limited thereto, and may be designed according to the type of the display panel. In addition, in the above display panel, if a non-self-luminous display medium layer, for example, liquid crystal, is used and driven by a vertical electric field, a common electrode 146 is further disposed between the display medium layer 134 and the upper substrate 130. If a non-self-luminous display medium layer, such as a liquid crystal, is used and driven by a horizontal electric field, the common electrode 146 may be selectively disposed between the display medium layer 134 and the upper substrate 130 or on the display medium layer 134 and the lower substrate. Between 132. Generally, in a display panel using a horizontal electric field driven non-self-luminous display medium layer, 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 applied, the common electrode 146 can be selectively disposed between the display medium layer 134 and the upper substrate 130 to be used as one electrode.

Furthermore, the regions of the respective pixel electrodes 144 define an effective display area 148 for displaying the primary pixels of the image. The effective display area 148 can be divided into a first color effective display area 148, a second color effective display area 148 and a 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 is not limited thereto. Each of the first color effective display area 148, each of the second color effective display areas 148 and each of the third color effective display areas 148 constitute a pixel. In the present embodiment, the effective display area 148 in the same row is the effective display area 148 having the same color, that is, the effective display area 148 of the same line is 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 same column of the effective display area 148, each of the first color effective display area 148, each of the second color effective display area 148 and each of the third color effective display area 148 sequentially along The column directions are alternately arranged in order, but the present invention is not limited thereto. In other embodiments of the present invention, the effective display area of the Nth column may be arranged in such a manner that each of the first color effective display area, each of the second color effective display areas, and each of the third color effective display areas are alternately arranged in sequence. The effective display area of the N+1 column may be arranged for each second color effective display area / each third color effective display area, each third color effective display area / each first color effective display area and each first color effective The display area/each second color effective display area is alternately arranged in sequence, and the effective display area of the N+2th column may be arranged in each third color effective display area/second color effective display area and each first color. The effective display area/each first color effective display area and each second color effective display area/each first color effective display area are alternately arranged in sequence, wherein N is a positive integer. Alternatively, the first color effective display area, the second color effective display area, and the third color effective display area may be arranged in a mosaic arrangement or a triangular arrangement. Of course, the above color can also use the color on the color coordinate, then at least two colors can be mixed to produce white light, and the effective display area is not limited to three, but also two, four, five, six Etc., nor does it limit the shape or size of the effective display area to be changed as needed by the design.

In the present embodiment, each of the first-eye display area 138 and each of the second-eye display areas 140 are respectively effective display areas 148, but the present invention is not limited thereto. In other embodiments of the present invention, each of the first eye display area and each of the second eye display areas may be formed by a single pixel, and the effective display area in each pixel may be arranged according to actual needs. set.

The operation mode of displaying the two-dimensional image and the three-dimensional image by the display device of the switchable two-dimensional and three-dimensional display modes of the embodiment is further described below, and the first eye display area is displayed by taking the right eye image as an example, and the second eye display area is used as an example. The left eye image is taken as an example, but the invention is not limited thereto. Please refer to Figure 3 and refer to Figure 1 and Figure 2 together. FIG. 3 is a schematic view showing the display device of the switchable two-dimensional and three-dimensional display modes in the three-dimensional 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 portion R1 and a second portion R2, and the left-eye L image is divided into a third portion L1 and a fourth portion L2. First, in the first period, the first eye display area 138 will display the first portion R1, and the second eye display area 140 will display the third portion L1. At this time, the parallax barrier panel alternately displays the first region 150 and the second region 152 in the column direction. Moreover, the odd number of first electrode patterns 124 are applied with a voltage, and the even number of first electrode patterns 124 are not applied with voltage, so that the first region 150 corresponding to the odd number of first electrode patterns 124 exhibits a shielding state, and corresponds to an even number of The second region 152 of an electrode pattern 124 exhibits a transparent state. A voltage is applied to the liquid crystal lens panel to assume a lens state. Therefore, the first portion R1 is refracted by the liquid crystal lens panel and blocked by the first region 150 having the shielding state, and is emitted from the second region 152 having the transparent state, is displayed toward the right eye R of the viewer, and the third portion L1 is refracted by the liquid crystal lens panel and is blocked by the first region 150 having the shielded state, and is emitted from the second region 152 having the transparent state, and is displayed toward the left eye L of the viewer. Then, in the second period after the first period, the first eye display area 138 will display the second portion R2, and the second eye display area 140 will display the fourth portion L2. At this time, the odd number of first electrode patterns 124 are not applied with voltage, and the even number of first electrode patterns 124 are applied with voltage, so that the first region 150 corresponding to the odd number of first electrode patterns 124 exhibits a transparent state, and corresponds to an even number. The second region 152 of the first electrode pattern 124 exhibits a shadowed state. The liquid crystal lens panel is still subjected to a voltage to assume a lens state. Therefore, the second portion R2 is refracted by the liquid crystal lens panel, passes through the first region 150 having a transparent state, and is displayed toward the right eye R of the viewer, and the fourth portion L2 is refracted by the liquid crystal lens panel, and is transparent. The first area 150 is displayed toward the left eye L of the viewer. It can be seen 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 view the right eye image, and the left eye L can receive the third part L1 of the left eye image and The fourth part is L2, and the left eye image is viewed, so the viewer can view the three-dimensional image. When the display device 100 capable of switching the two-dimensional and three-dimensional display modes is in the two-dimensional display mode, the first electrode pattern 124 is not applied with a voltage, so that the parallax barrier panel is in a transparent state, and the liquid crystal lens panel is not applied with a voltage. Transparent state. Thereby, 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 exhibiting a transparent state without applying a voltage, and may exhibit a transparent state upon application of a voltage, and exhibit a shielding state and a lens state without applying a voltage.

The invention is not limited to the above mode of operation. Please refer to FIG. 4, which is another embodiment of the display device capable of switching two-dimensional and three-dimensional display modes in the three-dimensional display mode according to the first preferred embodiment of the present invention. As shown in FIG. 4, compared with the above embodiment, the present embodiment changes the lens curvature of the liquid crystal lens panel such that the first eye display region 138 and the second eye display region 140 are in the first time period and the second time period. The images shown in the images are displayed in different eyes. In other words, in the first time period, the first eye display area 138 will display the first portion R1, and the second eye display area 140 will display the third portion L1. Moreover, the odd number of first electrode patterns 124 are applied with a voltage, and the even number of first electrode patterns 124 are not applied with voltage, so that the first region 150 corresponding to the odd number of first electrode patterns 124 exhibits a shielding state, and corresponds to an even number of The second region 152 of an electrode pattern 124 exhibits 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. The odd number of first electrode patterns 124 are not applied with voltage, and the even number of first electrode patterns 124 are applied with voltage, so that the first region 150 corresponding to the odd number of first electrode patterns 124 exhibits a transparent state, and corresponds to an even number of first electrodes The second region 152 of the pattern 124 exhibits a shadowed state. Thereby, the viewer can view the three-dimensional image.

It should be noted that, in the case of the three-dimensional display mode, the display device 100 of the switchable two-dimensional and three-dimensional display modes of the embodiment integrates the parallax barrier panel and the liquid crystal lens panel to present the same resolution as the display panel 104. The image is formed, and 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 same surface of the third substrate 110, and the alignment accuracy is better. Further, the problem of poor alignment accuracy when the liquid crystal lens panel and the parallax barrier panel are attached is solved. Moreover, in the case of the two-dimensional display mode, the display device 100 of the switchable two-dimensional and three-dimensional display modes of the present embodiment does not need to use two time periods to display the two-dimensional image, thereby reducing the display frequency of the display panel 100, and The load of the driving wafer of the display panel 100 is reduced.

The display device of the present invention that can switch two-dimensional and three-dimensional display modes is not limited to the above embodiment. The other embodiments and variations of the present invention are described in the following, and the same reference numerals will be used to refer to the same elements, and the repeated parts will not be described again.

The first electrode layer and the second electrode layer of the present invention may also have a first electrode pattern. Please refer to Figure 5. FIG. 5 is a top plan view of a display device capable of switching two-dimensional and three-dimensional display modes according to a second preferred embodiment of the present invention. As shown in FIG. 5, the first electrode layer 116 and the second electrode layer 118 of the display device 200 of the present embodiment capable of switching two-dimensional and three-dimensional display modes are compared to the switchable display mode device of the first embodiment. Each of the first electrode patterns 124 has a first electrode pattern 124, and the first electrode patterns 124 of the first electrode layer 116 are parallel to each other and alternately arranged in an array direction (ie, the extending direction of the first electrode pattern of 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 of the first embodiment) is staggered in the extending direction of each of the first electrode patterns 124 in the second electrode layer 118.

Please refer to Figure 6. Figure 6 is a cross-sectional view showing a display device capable of switching two-dimensional and three-dimensional 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 capable of switching two-dimensional and three-dimensional display modes of the present embodiment does not have the second electrode pattern 128 but is a planar electrode. . Also, the fourth electrode layer 122 has a second electrode pattern 128.

Please refer to Figure 7. Figure 7 is a cross-sectional view showing a display device capable of switching two-dimensional and three-dimensional display modes according to a fourth preferred embodiment of the present invention. As shown in FIG. 7 , the second electrode layer 118 of the display device 400 capable of switching two-dimensional and three-dimensional display modes of the present embodiment does not have the first electrode pattern 124 but is a planar electrode. . Also, the first electrode layer 116 has a first electrode pattern 124.

Please refer to Figure 8. Figure 8 is a cross-sectional view showing a display device capable of switching two-dimensional and three-dimensional display modes according to a fifth preferred embodiment of the present invention. As shown in FIG. 8, the second electrode layer 118 of the display device 500 of the switchable two-dimensional and three-dimensional display mode of the present embodiment does not have the first electrode pattern 124 and the third electrode layer, as compared with the first embodiment. 120 does not have the second electrode pattern 128. The second electrode layer 118 and the third electrode layer 120 are both planar electrodes. Also, the first electrode layer 116 has a first electrode pattern 124, and the fourth electrode layer 122 has a second electrode pattern 128.

Please refer to Figure 9. Figure 9 is a cross-sectional view showing a display device capable of switching two-dimensional and three-dimensional display modes according to a sixth preferred embodiment of the present invention. As shown in FIG. 9, the third electrode layer 120 having the second electrode pattern 128 of the display device 600 capable of switching two-dimensional and three-dimensional display modes of the present embodiment is disposed on the third substrate as compared with the first embodiment. The second surface 110b of the 110 is located between the third substrate 110 and the second liquid crystal layer 114. Thereby, the third substrate 110 can have the function of electrically isolating the second electrode layer 118 having the first electrode pattern 124 and the third electrode layer 120 having the second electrode pattern 128, and can be accurately measured without alignment. Degree problem. Therefore, the switchable display mode device 102 of the present embodiment does not need to provide a dielectric layer to electrically isolate the second electrode layer 118 from the third electrode layer 120, but is not limited thereto. In other embodiments of the present invention, the first electrode layer and the second electrode layer may also have a first electrode pattern, and the extending direction of each of the first electrode patterns in the first electrode layer is staggered in each of the second electrode layers. The direction in which an electrode pattern extends.

Please refer to Figure 10. Figure 10 is a cross-sectional view showing a display device capable of switching two-dimensional and three-dimensional 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 capable of switching two-dimensional and three-dimensional display modes of the present embodiment does not have the second electrode pattern 128 but is a planar electrode. . Also, the fourth electrode layer 122 has a second electrode pattern 128.

Please refer to Figure 11. 11 is a cross-sectional view showing a display device capable of switching two-dimensional and three-dimensional display modes according to an eighth preferred embodiment of the present invention. As shown in FIG. 11, the second electrode layer 118 of the display device 800 of the switchable two-dimensional and three-dimensional display mode of the present embodiment does not have the first electrode pattern 124 and the third electrode layer, as compared with the sixth embodiment. 120 does not have the second electrode pattern 128. The second electrode layer 118 and the third electrode layer 120 are both planar electrodes. Also, the first electrode layer 116 has a first electrode pattern 124, and the fourth electrode layer 122 has a second electrode pattern 128.

Please refer to Figure 12. Figure 12 is a cross-sectional view showing a display device capable of switching 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 capable of switching two-dimensional and three-dimensional display modes of the present embodiment does not have the first electrode pattern 124 but is a planar electrode. . Also, the first electrode layer 116 has a first electrode pattern 124.

Please refer to Figure 13. Figure 13 is a cross-sectional view showing a display device capable of switching 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 capable of switching two-dimensional and three-dimensional display modes of the present embodiment is a non-self-luminous display panel, and is disposed in the switchable display mode device. Above the 102, the backlight module 136 is disposed below the switchable display mode device 102. In other words, the switchable display mode device 102 of the present 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.

Please refer to Figure 14. Figure 14 is a cross-sectional view showing a display device capable of switching two-dimensional and three-dimensional display modes according to an eleventh preferred embodiment of the present invention. As shown in FIG. 14 , the display panel 104 of the display device 1100 capable of switching two-dimensional and three-dimensional display modes of the present embodiment is a self-luminous display panel disposed in the switchable display mode device 102. The display device 1100 below which can switch between the two-dimensional and three-dimensional display modes does not have a backlight module.

In summary, the present invention integrates the second electrode layer having the first electrode pattern and the third electrode layer having the second electrode pattern on the same surface of the third substrate, thereby fabricating the first electrode pattern and the second electrode The pattern can be formed by using a photolithography process, an inkjet process or a screen printing process, whereby the relative positional relationship between the first electrode pattern and the second electrode pattern can have better alignment accuracy, thereby solving the laminated liquid crystal. The problem of poor alignment accuracy when the lens panel and the parallax barrier panel are produced. Moreover, the present invention integrates the parallax barrier panel and the liquid crystal lens panel, and can display a three-dimensional image having the same resolution as the display panel not only in the three-dimensional display mode, but also in the case of the two-dimensional display mode. The two-dimensional image is displayed in two periods, thereby reducing the display frequency of the display panel and reducing the load on the driving wafer of the display panel.

The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

100, 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1100‧‧‧ display devices capable of switching 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‧‧‧First liquid crystal layer

114‧‧‧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 media layer

136‧‧‧Backlight module

138‧‧‧First eye display area

140‧‧‧Second eye display area

142‧‧‧Array circuit layer

144‧‧‧ pixel electrodes

146‧‧‧Common electrode

148‧‧‧effective display area

150‧‧‧First area

152‧‧‧Second area

R1‧‧‧Part 1

R2‧‧‧ Part II

L1‧‧‧Part III

L2‧‧‧Part IV

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

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

FIG. 3 is a schematic view showing the display device of the switchable two-dimensional and three-dimensional display modes in the three-dimensional display mode according to the first preferred embodiment of the present invention.

FIG. 4 is another embodiment of the display device of the switchable two-dimensional and three-dimensional display modes in the three-dimensional display mode according to the first preferred embodiment of the present invention.

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

Figure 6 is a cross-sectional view showing a display device capable of switching two-dimensional and three-dimensional display modes according to a third preferred embodiment of the present invention.

Figure 7 is a cross-sectional view showing a display device capable of switching two-dimensional and three-dimensional display modes according to a fourth preferred embodiment of the present invention.

Figure 8 is a cross-sectional view showing a display device capable of switching two-dimensional and three-dimensional display modes according to a fifth preferred embodiment of the present invention.

Figure 9 is a cross-sectional view showing a display device capable of switching two-dimensional and three-dimensional display modes according to a sixth preferred embodiment of the present invention.

Figure 10 is a cross-sectional view showing a display device capable of switching two-dimensional and three-dimensional display modes according to a seventh preferred embodiment of the present invention.

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

Figure 12 is a cross-sectional view showing a display device capable of switching two-dimensional and three-dimensional display modes according to a ninth preferred embodiment of the present invention.

Figure 13 is a cross-sectional view showing a display device capable of switching two-dimensional and three-dimensional display modes according to a tenth preferred embodiment of the present invention.

Figure 14 is a cross-sectional view showing a display device capable of switching two-dimensional and three-dimensional display modes according to an eleventh preferred embodiment of the present invention.

100. . . Display device capable of switching 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. . . First liquid crystal layer

114. . . 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 media layer

136. . . Backlight module

142. . . Array circuit layer

144. . . Pixel electrode

146. . . Common electrode

148. . . Effective display area

Claims (22)

A display device capable of switching two-dimensional and three-dimensional display modes, comprising: a switchable display mode device, comprising: a first substrate; a second substrate disposed opposite to the first substrate; a third substrate disposed on the Between the first substrate and the second substrate; a first liquid crystal layer disposed between the first substrate and the third substrate; a second liquid crystal layer disposed between the second substrate and the third substrate a first electrode layer disposed between the first liquid crystal layer and the first substrate; a second electrode layer disposed between the first liquid crystal layer and the third substrate, wherein the first electrode layer and One of the second electrode layers has a plurality of first electrode patterns that are parallel to each other, and the first electrode patterns are sequentially arranged along an arrangement direction; a third electrode layer is disposed on the second electrode layer and the Between the second liquid crystal layers, the third electrode layer is located below the second electrode layer; and a fourth electrode layer disposed between the second liquid crystal layer and the second substrate, wherein the first substrate, The first electrode layer, the first liquid crystal layer, the The second electrode layer and the third substrate form a parallax barrier panel, and the third substrate, the third electrode layer, the second liquid crystal layer, the fourth electrode layer and the second substrate form a liquid crystal lens panel; a display panel corresponding to the switchable display mode device, the display panel having a plurality of first eye display regions and a plurality of second eye display regions, Each of the first electrode patterns is disposed between each of the adjacent first eye display regions and each of the second eye display regions. The display device of the switchable two-dimensional and three-dimensional display mode according to claim 1, wherein each of the first eye display area and each of the second eye display areas are alternately arranged along the arrangement direction. The display device of the switchable two-dimensional and three-dimensional display mode according to claim 1, wherein the third substrate has a first surface and a second surface opposite to the first surface, and the third electrode layer The second electrode layer is 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 display device of the switchable two-dimensional and three-dimensional display mode according to claim 3, wherein one of the third electrode layer and the fourth electrode layer has a plurality of second electrode patterns. The display device as claimed in claim 4, wherein the first electrode layer has each of the first electrode patterns, and the second electrode layer does not have each of the first electrode patterns. The display device of the switchable two-dimensional and three-dimensional display mode according to claim 5, wherein the third electrode layer has each of the second electrode patterns, and the fourth electrode layer does not have There are each of the second electrode patterns. The display device as claimed in claim 5, wherein the fourth electrode layer has each of the second electrode patterns, and the third electrode layer does not have each of the second electrode patterns. The display device of the switchable two-dimensional and three-dimensional display mode according to claim 4, wherein the second electrode layer has the first electrode patterns, and the first electrode layer does not have the first electrode patterns. The display device of claim 2, wherein the third electrode layer has each of the second electrode patterns, and the fourth electrode layer does not have each of the second electrode patterns. The display device of claim 2, wherein the fourth electrode layer has each of the second electrode patterns, and the third electrode layer does not have each of the second electrode patterns. The display device of the switchable two-dimensional and three-dimensional display mode of claim 3, wherein the first electrode layer and the second electrode layer respectively have the first electrode patterns, wherein each of the first electrode layers The extending direction of the first electrode pattern is staggered in the extending direction of each of the first electrode patterns in the second electrode layer. The display device of the switchable two-dimensional and three-dimensional display mode according to claim 1, wherein the third substrate has a first surface and a second surface opposite to the first surface, and the second electrode layer The first electrode is disposed on the first surface of the third substrate, and the third electrode layer is disposed on the second surface of the third substrate. The display device of the switchable two-dimensional and three-dimensional display mode of claim 12, wherein one of the third electrode layer and the fourth electrode layer has a plurality of second electrode patterns. The display device of the switchable two-dimensional and three-dimensional display mode according to claim 13, wherein the first electrode layer has each of the first electrode patterns, and the second electrode layer does not have each of the first electrode patterns. The display device of the switchable two-dimensional and three-dimensional display mode of claim 14, wherein the third electrode layer has each of the second electrode patterns, and the fourth electrode layer does not have each of the second electrode patterns. The display device of claim 2, wherein the fourth electrode layer has each of the second electrode patterns, and the third electrode layer does not have each of the second electrode patterns. The display device of the switchable two-dimensional and three-dimensional display mode of claim 13, wherein the second electrode layer has each of the first electrode patterns, and the first electrode layer does not have There are each of the first electrode patterns. The display device of claim 2, wherein the third electrode layer has each of the second electrode patterns, and the fourth electrode layer does not have each of the second electrode patterns. The display device of claim 2, wherein the fourth electrode layer has each of the second electrode patterns, and the third electrode layer does not have each of the second electrode patterns. The display device of the switchable two-dimensional and three-dimensional display mode of claim 13, wherein the first electrode layer and the second electrode layer respectively have the first electrode patterns, wherein each of the first electrode layers The extending direction of the first electrode pattern is staggered in the extending direction of each of the first electrode patterns in the second electrode layer. The display device of claim 2, wherein the display panel is located above the switchable display mode device. The display device of the switchable two-dimensional and three-dimensional display mode according to claim 1, wherein the display panel is located below the switchable display mode device.