TWI696869B - Display device - Google Patents

Abstract

A display device includes a display panel, a liquid-crystal antenna panel, and a shielding structure. The display panel includes a first substrate and a first liquid-crystal layer which is on the first substrate. The liquid-crystal antenna is disposed on the first substrate and includes a second liquid-crystal layer. The shielding structure is disposed on the first substrate and is located between the first liquid-crystal layer and the second liquid-crystal layer. The shielding structure includes a plurality of metal patterns.

Description

Display device

This disclosure relates to a display device.

With the development of technology, various electronic devices that can provide display functions have become mainstream products in the consumer market, such as smart phones, smart watches, home TVs, or notebook computers. The functionalities of these consumer electronic devices are gradually becoming more and more abundant with market trends. For example, the antenna function can be added to these consumer electronic devices so that users can operate through the antenna function. In this regard, since the addition of the antenna function to the consumer electronic device will increase the complexity of the structure, it may also affect the original function. Therefore, how to add the antenna function to these consumer electronic devices has become one of the development issues in related fields.

An embodiment of the disclosure provides a display device including a display panel, a liquid crystal antenna, and a shielding structure. The display panel includes a first substrate and a first liquid crystal layer, and the first liquid crystal layer is disposed on the first substrate. The liquid crystal antenna is disposed on the first substrate and includes a second liquid crystal layer. The shielding structure is disposed on the first substrate and is located between the first liquid crystal layer and the second liquid crystal layer, wherein the shielding structure includes Contains metal patterns.

In some embodiments, the metal pattern is formed through metal particles, metal pillars, metal mesh, or a combination thereof.

In some embodiments, the shielding structure is arranged on the first substrate in sections, and the display device further includes a frame glue, and the frame glue is arranged on the first substrate in sections and is formed together with the shielding structure Strip pattern.

In some embodiments, the shielding structure further includes a colloid layer, which forms an interface with the first substrate and covers the metal pattern, and the material of the colloid layer includes an organic polymer.

In some embodiments, the display device further includes a first frame glue and a second frame glue. The first sealant surrounds the first liquid crystal layer. The second sealant surrounds the second liquid crystal layer, and the shielding structure is located between the first sealant and the second sealant.

In some embodiments, the display device further includes a first frame glue and a second frame glue. The first sealant surrounds the first liquid crystal layer. The second sealant surrounds the second liquid crystal layer, and the shielding structure is surrounded by the first sealant or the second sealant.

In some embodiments, the display panel further includes a pixel array, a color filter layer, and a second substrate. The pixel array, the first liquid crystal layer, and the color filter layer are located between the first substrate and the second substrate, and the first The liquid crystal layer is located between the pixel array and the color filter layer. The liquid crystal antenna further includes a first electrode layer and a second electrode layer between the first substrate and the second substrate, and the second liquid crystal layer is located between the first electrode layer and the second electrode layer.

In some embodiments, the material of the first liquid crystal layer is different from the material of the second liquid crystal layer, and the dielectric constant of the material of the second liquid crystal layer in the frequency band used is greater than or equal to 2 and less than or equal to 4, and the tangent loss is greater than 0 and Less than 0.02.

In some embodiments, the display device further includes a polarizer. The first substrate is located between the polarizer and the first liquid crystal layer, and the vertical projection of the liquid crystal antenna on the first substrate falls outside the vertical projection of the polarizer on the first substrate.

In some embodiments, the display device further includes a light shielding layer. The first substrate is located between the light shielding layer and the second liquid crystal layer, and the vertical projection of the liquid crystal antenna on the first substrate falls within the vertical projection of the light shielding layer on the first substrate.

Through the above configuration, the shielding structure can shield the bidirectional high-frequency signal between the display area and the antenna area by its multiple metal patterns, thereby preventing the display area and the antenna area from interfering with each other due to the high-frequency signal. In this regard, the shielding structure may be formed by a conductive colloidal material and is compatible with the manufacturing process of the display device, so the shielding structure can be formed on the display device without excessively increasing the complexity of the manufacturing process Within the structure.

100A, 100B, 100C, 100D, 100E, 100F, 100G, 100H

102‧‧‧Display area

103‧‧‧ pixels

104‧‧‧ Antenna area

106‧‧‧ Route area

110‧‧‧Display panel

112‧‧‧LCD antenna

114‧‧‧The first substrate

116‧‧‧Second substrate

120‧‧‧Pixel array

122‧‧‧ Thin film transistor array

124‧‧‧Pixel electrode

125‧‧‧The first liquid crystal layer

126‧‧‧The first liquid crystal molecule

127‧‧‧Color filter layer

128‧‧‧shading structure

130‧‧‧color resist layer

132‧‧‧Common electrode

134‧‧‧First polarizer

136‧‧‧Second polarizer

138‧‧‧First electrode layer

140‧‧‧second liquid crystal layer

142‧‧‧second liquid crystal molecule

144‧‧‧Second electrode layer

146‧‧‧ shading layer

150‧‧‧shield structure

152‧‧‧Colloid layer

154‧‧‧Metal pattern

156‧‧‧ First frame glue

158‧‧‧Second frame glue

160‧‧‧The third frame glue

FIG. 1A is a schematic top view illustrating a display device according to the first embodiment of the present disclosure.

FIG. 1B is a schematic side view showing a display device according to the first embodiment of the present disclosure.

FIG. 2 is a schematic top view showing a display device according to a second embodiment of the present disclosure.

FIG. 3 is a schematic top view showing a display device according to a third embodiment of the present disclosure.

FIG. 4 shows a display device according to a fourth embodiment of the disclosure See diagram up.

FIG. 5 is a schematic top view showing a display device according to a fifth embodiment of the present disclosure.

FIG. 6 is a schematic top view showing a display device according to a sixth embodiment of the present disclosure.

FIG. 7 is a schematic top view showing a display device according to a seventh embodiment of the present disclosure.

FIG. 8 is a schematic top view showing a display device according to an eighth embodiment of the present disclosure.

In the following, a plurality of embodiments of the present invention will be disclosed in the form of diagrams. For the sake of clarity, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present invention. That is to say, in some embodiments of the present invention, these practical details are unnecessary. In addition, in order to simplify the drawings, some conventional structures and elements will be shown in a simple schematic manner in the drawings.

In this article, the terms first, second, and third are used to describe various elements, regions, and layers that can be understood. These vocabulary can be used to identify a single component, region, or layer. Therefore, in the following, a first element, region, or layer may also be referred to as a second element, region, or layer without departing from the original intention of the disclosure. As used herein, "about" or "substantially" includes the stated value and the average value within an acceptable deviation. For example, "about" or "substantially" may mean within one or more standard deviations of the stated value, or ±30%, ±20%, ± Within 10%, ±5%.

The display device of the present disclosure can integrate the display function and the wireless transmission function together, wherein the display function can be realized by a pixel, and the wireless transmission function can be realized by a liquid crystal antenna, and the display device can further include a pixel and a liquid crystal. Multiple metal patterns between the antennas shield high-frequency signals between the pixel array and the liquid crystal antenna, thereby avoiding mutual interference between the display area and the antenna area due to high-frequency signals.

Please refer to Figure 1A and Figure 1B at the same time. FIG. 1A is a schematic top view showing a display device 100A according to the first embodiment of the disclosure, and FIG. 1B is a schematic side view showing the display device 100A according to the first embodiment of the disclosure. For convenience of description, some elements are omitted in FIG. 1A, for example, the second substrate 116 of FIG. 1B and the layer body formed thereon are omitted.

The display device 100A has a display area 102, an antenna area 104, and a wiring area 106, wherein the wiring area 106 is located outside the display area 102 and the antenna area 104. The display area 102 can be used to provide images. For example, a plurality of pixels 103 are provided in the display area 102, and images can be displayed through the pixels 103. The layer provided in the antenna area 104 can be used as an antenna and provides wireless transmission functions, such as communication, radar, sensors, wireless charging, or other functions for wireless transmission of electrical signals. The trace area 106 can be used to place traces electrically connected to other devices from the display area 102 or the antenna area 104. For example, the elements in the display area 102 or the antenna area 104 can be electrically connected to the driving circuit or the connection terminal (not shown) through the wiring area 106.

The display device 100A includes a display panel 110, a liquid crystal antenna 112, and a shielding structure 150, wherein the pixels 103 of the display panel 110 are located in the display area In 102, the liquid crystal antenna 112 is located in the antenna area 104, and the shielding structure 150 is located between the pixel 103 and the liquid crystal antenna 112. The display panel 110, the liquid crystal antenna 112 and the shielding structure 150 may share the same substrate, so that during the manufacturing process, the display panel 110, the liquid crystal antenna 112 and the shielding structure 150 may be formed on the same substrate.

For example, it can be considered that the display panel 110 includes a first substrate 114 and a second substrate 116, and each element or layer of the display panel 110, the liquid crystal antenna 112, and the shielding structure 150 is formed on the first substrate 114 or the second On the substrate 116, each of the first substrate 114 and the second substrate 116 may be a transparent substrate, such as a glass substrate. Alternatively, it can be considered that the liquid crystal antenna 112 includes the first substrate 114 and the second substrate 116, and each element or layer of the display panel 110, the liquid crystal antenna 112, and the shielding structure 150 is formed on the first substrate 114 or the second substrate 116.

The display panel 110 includes a pixel array 120, a first liquid crystal layer 125 and a color filter layer 127, wherein the pixel array 120, the first liquid crystal layer 125 and the color filter layer 127 are located between the first substrate 114 and the second substrate 116 And the first liquid crystal layer 125 is located between the pixel array 120 and the color filter layer 127. The display panel 110 can form a plurality of pixels 103 as shown in FIG. 1A through the pixel array 120, the first liquid crystal layer 125, and the color filter layer 127.

The pixel array 120 is located on the first substrate 114 and includes a thin film transistor array 122 and pixel electrodes 124. The thin film transistor array 122 may include a plurality of thin film transistors (not shown), and is formed by sequentially stacking a plurality of layers. The pixel electrode 124 is located on the thin film transistor array 122, and is electrically connected to the corresponding thin film transistor. The thin film transistor array 122 can apply electricity through the corresponding thin film transistor The pixel electrode 124 is pressed to change the potential of the pixel electrode 124. In some embodiments, the material of the pixel electrode 124 may be a transparent conductive material, such as indium tin oxide, indium zinc oxide, zinc oxide, carbon nanotubes, indium gallium zinc oxide, or other suitable materials.

The color filter layer 127 is located on the pixel array 120 and the first liquid crystal layer 125, and includes a light-shielding structure 128, a color resist layer 130, and a common electrode 132. The light-shielding structure 128 may be a black matrix, which may be formed through ink or other light-shielding materials. The light-shielding structure 128 can be used to define the formation position of the excellent resist layer 130. For example, the light-shielding structure 128 can have an opening, and the color resist layer 130 is located in the opening. The color resist layer 130 may be a red color resist layer, a green color resist layer, or a blue color resist layer, so that the light beam passing through the color filter layer 127 can have a corresponding color. The common electrode 132 may cover the light shielding structure 128 and the color resist layer 130. In some embodiments, the material of the common electrode 132 may be a transparent conductive material, such as indium tin oxide, indium zinc oxide, zinc oxide, carbon nanotubes, indium gallium zinc oxide, or other suitable materials.

The pixel electrode 124 and the common electrode 132 can couple out an electric field to control the optical rotation of the first liquid crystal layer 125. Furthermore, the material of the first liquid crystal layer 125 includes first liquid crystal molecules 126, wherein the electric field coupled out of the pixel electrode 124 and the common electrode 132 can turn the first liquid crystal molecules 126 of the first liquid crystal layer 125, thereby controlling the first The optical rotation of a liquid crystal layer 125.

In addition, the display device 100A may further include a first polarizer 134, a second polarizer 136, and a backlight module (not shown). The first polarizer 134 may be attached to the first substrate 114 so that the first substrate 114 is located between the first polarizer 134 and the pixel array 120. The second polarizer 136 may be attached to the second substrate 116 so that the second substrate 116 is located between the color filter layer 127 and the second polarizer 136. Backlight The module can be used to provide a light beam toward the first substrate 114 for use as a backlight. The light beam provided by the backlight module can sequentially pass through the first polarizer 134 and the first liquid crystal layer 125, and when the first liquid crystal molecules 126 of the first liquid crystal layer 125 are controlled so that the light beam passing therethrough can pass the second polarized light When the film 136 is used, the display panel 110 can transmit the light beam passing through the second polarizer 136 to provide an image.

The liquid crystal antenna 112 includes a first electrode layer 138, a second liquid crystal layer 140, and a second electrode layer 144, wherein the second liquid crystal layer 140 is located between the first electrode layer 138 and the second electrode layer 144. The first electrode layer 138 is disposed on the first substrate 114, and the first electrode layers 138 are separated from each other. The first electrode layer 138 can be used as an antenna. Further, the display device 100A may further include a driving element (not shown), and is electrically connected to the first electrode layer 138. When the driving element inputs an AC signal to the first electrode layer 138, such as a sine wave signal or oscillation Signal, the first electrode layer 138 can be coupled with a magnetic field, thereby providing a high-frequency signal that can be wirelessly transmitted. Although the first electrode layer 138 depicted in FIG. 1B is a three-ring pattern, the disclosure is not limited thereto. In other embodiments, different numbers or shapes of first electrode layers 138 may be configured.

The second electrode layer 144 is located on the first electrode layer 138 and the second liquid crystal layer 140, and the material of the second liquid crystal layer 140 includes second liquid crystal molecules 142. The first electrode layer 138 and the second electrode layer 144 can be coupled with an electric field to control the arrangement direction of the second liquid crystal molecules 142 of the second liquid crystal layer 140, thereby modulating the properties of the high frequency signal. For example, when the second liquid crystal molecules 142 of the second liquid crystal layer 140 are turned due to an electric field, the intensity or frequency of the high frequency signal can be adjusted.

The material characteristics of the second liquid crystal layer 140 can be configured to meet the wireless transmission requirements of the liquid crystal antenna 112. For example, in some embodiments, the second The dielectric constant of the material of the liquid crystal layer 140 in the use frequency band can be greater than or equal to 2 and less than or equal to 4, and the tangent loss can be greater than 0 and less than 0.02, so that the second liquid crystal layer 140 can be suitable for the corresponding frequency band from about 2GHz to about 100GHz High frequency signal. On the other hand, with respect to the second liquid crystal layer 140 of the liquid crystal antenna 112, since the first liquid crystal layer 125 of the display panel 110 is configured to meet the display requirements, the first liquid crystal layer 125 can have more flexibility in material selection , And therefore may be different from the material of the second liquid crystal layer 140.

In addition, since there is no display requirement for the antenna area 104, the first polarizer 134 and the second polarizer 136 do not need to extend to the antenna area 104, thereby simplifying the structural complexity of the display device 100A. Specifically, the vertical projection of the antenna area 104 or the liquid crystal antenna 112 in the first substrate 114 falls outside the vertical projection of the first polarizer 134 and the second polarizer 136 on the first substrate 114.

Also, since there is no display requirement for the antenna area 104, a light-shielding material can be used to prevent light from entering the liquid crystal antenna 112 in the antenna area 104 through the first substrate 114, thereby preventing light leakage from the antenna area 104. For example, the display device 100A may include a light-shielding layer 146, wherein the first substrate 114 is located between the light-shielding layer 146 and the second liquid crystal layer 140, and the vertical projection of the liquid crystal antenna 112 on the first substrate 114 falls on the light-shielding layer 146. In the vertical projection of the first substrate 114, the light shielding layer 146 can block light traveling from below the first substrate 114 toward the liquid crystal antenna 112.

The shielding structure 150 is used to shield bidirectional high-frequency signals between the display area 102 and the antenna area 104, that is, the shielding structure 150 can shield high-frequency signals traveling from the display area 102 toward the antenna area 104, and can also shield from the antenna area 104 High frequency signal traveling towards the display area 102. Apart from these high-frequency signals, the antenna area 104 In addition to the internal liquid crystal antenna 112, it may also be caused by electrical components during operation, such as when the thin film transistor is driven.

The shielding structure 150 is located between the first substrate 114 and the second substrate 116. The shielding structure 150 may include a conductor material to shield high-frequency signals through a shielding effect. Specifically, the shielding structure 150 may include a gel layer 152 and a metal pattern 154, and the gel layer 152 covers the metal pattern 154.

The shielding structure 150 can be formed by disposing colloidal material on the first substrate 114. Specifically, a colloid coated with a metal material may be coated on the first substrate 114, and then the colloid is cured to form the shielding structure 150, wherein the curing method may be thermal curing or ultraviolet curing. In some embodiments, the metal-coated colloid may be a conductive glue, such as silver glue, anisotropic conductive glue, or the like. In addition, the colloid may contain organic substances, such as epichlorohydrin and phenol methane, and since these organic substances will be converted into organic polymers during the curing process, the material of the colloid layer 152 will contain organic polymers, such as epoxy resin. On the other hand, the metal material covered by the colloid is the metal pattern 154 of the shielding structure 150. As depicted in FIGS. 1A and 1B, the metal pattern 154 of this embodiment is formed of metal particles, which may be, for example, silver particles, copper particles, nickel particles, or a combination thereof, and the particle size of the metal particles may be between 4 microns to 10 microns.

However, the content of the present disclosure is not limited to this, and the shape of the metal pattern 154 may be determined according to shielding requirements or process requirements. In other embodiments, the shape of the metal pattern 154 may be formed by metal pillars, or may be formed by a combination of metal particles and metal pillars.

The number of the metal patterns 154 is plural, and they are configured to each other Separate. Here, "the metal patterns are separated from each other" means that if the line segment from the display area 102 to the antenna area 104 is drawn in FIG. 1A or FIG. 1B, the line segment can be drawn to pass through the metal pattern In addition to the pattern of 154, it can also be shown to only pass through the colloid layer 152 without intersecting the metal pattern 154. Through these metal patterns 154 separated from each other, the shielding structure 150 can shield high-frequency signals, thereby preventing the display area 102 and the antenna area 104 from interfering with each other due to high-frequency signals, and thus preventing the high-frequency signals emitted by the liquid crystal antenna 112 from being affected. Distorted and distorted.

On the other hand, the gel layer 152 of the shielding structure 150 may be connected to other sealants of the display device 100A, so as to prevent the liquid crystal layer from flowing out. Specifically, the display device 100A may further include a first sealant 156 and a second sealant 158, the first sealant 156 may partially surround the display area 102, and the second sealant 158 may partially surround the antenna area 104, The materials of the first sealant 156 and the second sealant 158 may include organic polymers, such as epoxy resin.

The gel layer 152 of the shielding structure 150 is located between the first sealant 156 and the second sealant 158 and connects the first sealant 156 and the second sealant 158. With this configuration, the gel layer 152 and the first sealant 156 of the shielding structure 150 can surround the display area 102 together to prevent the first liquid crystal layer 125 from flowing out, while the gel layer 152 and the second sealant 158 of the shielding structure 150 are The antenna area 104 is surrounded together to prevent the second liquid crystal layer 140 from flowing out. In addition, the colloid layer 152, the first sealant 156 and the second sealant 158 of the shielding structure 150 will form an interface with the upper surface of the first substrate 114 and the lower surface of the second substrate 116, respectively A substrate 114 and a second substrate 116 are fixed together.

In this regard, since the shielding structure 150, the first sealant 156 and the second sealant 158 can be formed through the colloidal material, the manufacturing method of the shielding structure 150 The formula and the manufacturing methods of the first sealant 156 and the second sealant 158 are compatible with each other, so that the shielding structure 150, the first sealant 156 and the second sealant 158 can be manufactured together in the same manufacturing process. Therefore, from the manufacturing point of view, since the manufacturing methods of the shielding structure 150, the first sealant 156 and the second sealant 158 are compatible with each other, the shielding structure can be applied without excessively increasing the complexity of the manufacturing process 150 production is completed.

Please refer to FIG. 2 again. FIG. 2 is a schematic top view illustrating the display device 100B according to the second embodiment of the present disclosure. At least one difference between this embodiment and the first embodiment is that the shielding structure 150 of this embodiment is arranged on the first substrate 114 in stages. For example, the shielding structure 150 of FIG. 2 is shown in seven segments.

In addition, the display device 100B further includes a third sealant 160, and the third sealant 160 is also disposed on the first substrate 114 in sections, and is located between the display area 102 and the antenna area 104. Specifically, the shielding structure 150 and the third sealant 160 arranged in a segmented manner may be alternately arranged, that is, the third sealant 160 will exist between two adjacent sections in the shielding structure 150.

Through this configuration, the shielding structure 150 and the third sealant 160 can jointly form a stripe pattern, and the stripe pattern connects the first sealant 156 and the second sealant 158 to surround the display area 102 and the antenna area 104 together, thereby Avoid liquid crystal layer outflow. In this regard, in some embodiments, a plurality of third sealants 160 may be formed on the first substrate 114 first, and there is a gap between the third sealants 160, and then the conductive colloidal material may be disposed on Between these third sealants 160, after curing, the colloidal material will become the shielding structure 150, and the shielding structure 150 and the third sealant 160 will form a stripe pattern together.

In addition, for the shielding structure 150 in a segmented configuration, it may be periodically segmented, that is, the spacing between each adjacent two segments of the shielding structure 150 is the same. Further, the segmentation pitch can be designed to be smaller than the wavelength scale in the half of the medium corresponding to the operating frequency of the liquid crystal antenna 112, and the shielding structure 150 is periodically segmented on the first substrate according to the segmentation pitch 114, thereby enhancing the shielding effect of the shielding structure 150. In some embodiments, the length of each side of the shielding structure 150 may be between 1 mm and 5 mm, and the spacing between two consecutive sections in the shielding structure 150 may be between 1 mm and 40 mm. For example, the side length of each section of the shielding structure 150 may be between 3 mm, and the interval between them may be 8 mm. Under this scale configuration, when the dielectric constant of the medium is 3, the shielding structure 150 can shield the frequency Electromagnetic waves less than about 10.8 GHz.

Please refer to FIG. 3 again. FIG. 3 is a schematic top view illustrating the display device 100C according to the third embodiment of the present disclosure. At least one difference between this embodiment and the first embodiment is that in this embodiment, the shielding structure 150 is connected to the second sealant 158 and is separated from the first sealant 156 by a distance. Specifically, the first sealant 156 surrounds the display area 102 independently, and the connected shielding structure 150 and the second sealant 158 surround the antenna area 104 together.

In addition, in this embodiment, although the shielding structure 150 depicted in FIG. 3 extends directly from the upper boundary close to the antenna region 104 to the lower boundary close to the antenna region 104, the disclosure content is not limited to this, and is implemented in other implementations In the method, the shielding structure 150 can also be changed to adopt a segmented configuration, that is, similar to the embodiment depicted in FIG. 2. In the case where the shielding structure 150 is adopted in a segmented configuration, a part of the second frame glue 158 may be shaped in conjunction with the shielding structure 150 in a segmented configuration Form a stripe pattern and surround the antenna area 104 together.

Please refer to FIG. 4 again. FIG. 4 is a schematic top view illustrating the display device 100D according to the fourth embodiment of the present disclosure. At least one difference between this embodiment and the first embodiment is that in this embodiment, the shielding structure 150 is connected to the first sealant 156 and is separated from the second sealant 158 by a distance. Specifically, the connected shielding structure 150 and the first frame glue 156 surround the display area 102 together, and the second frame glue 158 independently surrounds the antenna area 104.

In addition, in this embodiment, although the shielding structure 150 depicted in FIG. 4 extends directly from the upper boundary close to the display area 102 to the lower boundary close to the display area 102, the disclosure content is not limited to this, and is implemented in other implementations In the method, the shielding structure 150 can also be changed to adopt a segmented configuration, that is, similar to the embodiment depicted in FIG. 2. In the case where the shielding structure 150 is in a segmented configuration, a portion of the first sealant 156 can form a stripe pattern with the shielding structure 150 in a segmented configuration, and surround the display area 102 together.

Please refer to FIG. 5 again. FIG. 5 is a schematic top view illustrating the display device 100E according to the fifth embodiment of the present disclosure. At least one difference between this embodiment and the first embodiment is that the shielding structure 150 of this embodiment omits the colloid layer. Specifically, the shielding structure 150 is located between the first sealant 156 and the second sealant 158, and includes a metal pattern 154, and the metal pattern 154 is disposed between the display area 102 and the antenna area 104 in a manner of being separated from each other . The metal pattern 154 may be formed through a metal pillar, wherein the metal pillar may be formed after patterning the metal layer, and the pillar extending direction is from the first substrate 114 toward the second substrate (not shown, which is as shown in FIG. Second substrate 116). That is, the metal pattern 154 of this embodiment can be regarded as a metal pillar array. Although Figure 5 is a metal pattern The top view of 154 is shown as a circle, but the disclosure is not limited to this, and in other embodiments, it may also be an ellipse, rectangle, or other polygon.

In some embodiments, there may be a gap between the metal pattern 154 and the second substrate (not shown, such as the second substrate 116 in FIG. 1B), that is, the length of the metal pillar is shorter than that of the first substrate 114 and the second The distance between the substrates. Metal pillars of this size can still achieve the effect of shielding high-frequency signals, and their length requirements can be more flexible to avoid the yield being affected.

In addition, although the shielding layer 150 of this embodiment omits the colloid layer, in other embodiments, the metal pattern 154 may be formed on the first substrate 114 and then the colloid layer covering the metal pattern 154 may be formed. In this regard, the formation method of the colloid layer can be selected according to different process conditions. For example, the colloid layer may be formed to be connected to the first sealant 156 and the second sealant 158, or not formed to be connected to the first sealant 156 and the first sealant The second frame glue 158 is connected and formed to be connected only to the first frame glue 156 or only the second frame glue 158. In some embodiments, the first pattern 156 or the second frame 158 may be used to cover the metal pattern 154. For example, when the first sealant 156 surrounding the display area 102 is configured, the configuration range of the first sealant 156 may be sufficient for the first sealant 156 to cover the metal pattern 154.

In some embodiments, when the first sealant 156 and the second sealant 158 are independent and separated from each other, the conductive colloidal materials may be arranged in the first frame in such a manner as to be separated from each other Between the glue 156 and the second frame glue 158, the conductive colloidal material can form a shielding structure with a segmented configuration after curing, and the shielding structure includes a colloidal layer and a metal pattern. In some embodiments, the shielding structure 150 may further include a dielectric layer, and the dielectric layer covers Covering the metal pattern 154 to serve as a protective layer of the metal pattern 154.

FIG. 6 is a schematic top view showing the display device 100F according to the sixth embodiment of the present disclosure. At least one difference between this embodiment and the fifth embodiment is that the shielding structure 150 of this embodiment is surrounded by the second sealant 158. Specifically, the shielding structure 150 may be prepared before the second sealant 158 is configured. Then, when the second sealant 158 is disposed on the first substrate 114, the configuration range of the second sealant 158 may be sufficient The liquid crystal antenna 112 and the shielding structure 150 are surrounded. In other words, a portion of the second sealant 158 is located between the display area 102 and the antenna area 104, and the shielding structure 150 is located between the first electrode layer 138 of the liquid crystal antenna 112 and the portion of the second sealant 158 Between the second liquid crystal layer (not shown, which is the second liquid crystal layer 140 in FIG. 1B) and the first liquid crystal layer (not shown, which is also shown) in the display area 102 As shown in FIG. 1B, between the first liquid crystal layer 125), the shielding structure 150 can still be positioned to shield the bidirectional high-frequency signal between the display area 102 and the antenna area 104. In addition, in this embodiment, although the first sealant 156 and the second sealant 158 depicted in FIG. 6 are separated, the disclosure content is not limited to this. In other embodiments, the first The sealant 156 and the second sealant 158 may also be connected to each other.

FIG. 7 is a schematic top view showing a display device 100G according to the seventh embodiment of the present disclosure. At least one difference between this embodiment and the fifth embodiment is that the shielding structure 150 of this embodiment is surrounded by the first sealant 156. Specifically, the shielding structure 150 may be prepared before the first sealant 156 is configured. Then, when the first sealant 156 is disposed on the first substrate 114, the configuration range of the first sealant 156 may be sufficient Pixel 103 and screen Dding structure 150. That is to say, a portion of the first frame 156 is located between the display area 102 and the antenna area 104, and the shielding structure 150 is located between the pixel 103 and the portion of the first frame 156, and also located The first liquid crystal layer (not shown, which is the first liquid crystal layer 125 in FIG. 1B) in the display area 102 and the second liquid crystal layer (not shown, which is the second liquid crystal layer in FIG. 1B) 140), therefore, the position of the shielding structure 150 can still shield the bidirectional high-frequency signal between the display area 102 and the antenna area 104. Similarly, in this embodiment, although the first sealant 156 and the second sealant 158 depicted in FIG. 7 are separated, the disclosure content is not limited to this. In other embodiments, the The first frame glue 156 and the second frame glue 158 may also be connected to each other.

FIG. 8 is a schematic top view showing a display device 100H according to the eighth embodiment of the present disclosure. At least one difference between this embodiment and the fifth embodiment is that the metal pattern 154 of the shielding structure 150 of this embodiment is formed through a metal mesh. Specifically, the metal mesh has a plurality of metal grids, and each metal grid can be regarded as a metal pattern 154, so that the shielding structure 150 can shield the high-frequency signal by the plurality of metal patterns 154. Similarly, in some embodiments, the shielding structure 150 may further include a dielectric layer, and the dielectric layer covers the metal pattern 154 to serve as a protective layer of the metal pattern 154.

In summary, the display device of the present disclosure has a display area and an antenna area, and includes a shielding structure. The shielding structure is located between the display area and the antenna area, and includes a plurality of metal patterns. The multiple metal patterns of the shielding structure can shield the bidirectional high-frequency signal between the display area and the antenna area, thereby preventing the display area and the antenna area from interfering with each other due to the high-frequency signal. In addition, the shielding structure can be formed by a conductive colloidal material, and can be compatible with the manufacturing process of the display device, so it can Without excessively increasing the complexity of the manufacturing process, the shielding structure is formed into the structure of the display device. On the other hand, the shielding structure can have multiple configurations to meet different process requirements, thereby making the process of the display device more flexible.

Although the present invention has been disclosed in various embodiments as above, it is not intended to limit the present invention. Anyone who is familiar with this skill can make various modifications and retouchings without departing from the spirit and scope of the present invention. The scope of protection shall be determined by the scope of the attached patent application.

100A‧‧‧Display device

102‧‧‧Display area

104‧‧‧ Antenna area

110‧‧‧Display panel

112‧‧‧LCD antenna

114‧‧‧The first substrate

116‧‧‧Second substrate

120‧‧‧Pixel array

122‧‧‧ Thin film transistor array

124‧‧‧Pixel electrode

125‧‧‧The first liquid crystal layer

126‧‧‧The first liquid crystal molecule

127‧‧‧Color filter layer

128‧‧‧shading structure

130‧‧‧color resist layer

132‧‧‧Common electrode

134‧‧‧First polarizer

136‧‧‧Second polarizer

138‧‧‧First electrode layer

140‧‧‧second liquid crystal layer

142‧‧‧second liquid crystal molecule

144‧‧‧Second electrode layer

146‧‧‧ shading layer

150‧‧‧shield structure

152‧‧‧Colloid layer

154‧‧‧Metal pattern

158‧‧‧Second frame glue

Claims (10)

A display device includes: a display panel including a first substrate, a second substrate, a pixel array and a first liquid crystal layer, and the pixel array and the first liquid crystal layer are located on the first substrate and the Between the second substrates; a liquid crystal antenna including a first electrode layer, a second electrode layer and a second liquid crystal layer, wherein the first electrode layer and the second electrode layer are located on the first substrate and the second Between the substrates, and the second liquid crystal layer is located between the first electrode layer and the second electrode layer; and a shielding structure is provided on the first substrate and is located between the first liquid crystal layer and the second liquid crystal Between layers, wherein the shielding structure includes a plurality of metal patterns and a colloid layer, and the colloid layer covers the metal patterns. The display device according to claim 1, wherein the metal patterns are formed through metal particles, metal pillars, metal mesh, or a combination thereof. The display device according to claim 1, wherein the shielding structure is arranged on the first substrate in sections, and the display device further comprises at least one frame glue, the frame glue is arranged in sections A stripe pattern is formed on the first substrate together with the shielding structure. The display device according to claim 1, wherein the colloid layer forms an interface with the first substrate, and the material of the colloid layer includes an organic polymer. The display device according to claim 1, further comprising: a first sealant surrounding the first liquid crystal layer; and a second sealant surrounding the second liquid crystal layer, and the shielding structure is located in the first sealant And the second sealant. The display device according to claim 1, further comprising: a first sealant surrounding the first liquid crystal layer; and a second sealant surrounding the second liquid crystal layer, and the shielding structure is formed by the first frame Glue or the second frame glue. The display device according to claim 1, wherein the display panel further includes a color filter layer, the color filter layer is located between the first substrate and the second substrate, and the first liquid crystal layer is located at the pixel Between the array and the color filter layer. The display device according to claim 1, wherein the material of the first liquid crystal layer is different from the material of the second liquid crystal layer, and the material of the second liquid crystal layer has a dielectric constant of 2 or more and less than or equal to the use frequency band 4, and the tangent loss is greater than 0 and less than 0.02. The display device according to claim 1, further comprising: a polarizer, wherein the first substrate is located between the polarizer and the first liquid crystal layer, and the vertical projection of the liquid crystal antenna on the first substrate falls on the The polarizer is outside the vertical projection of the first substrate. The display device according to claim 1, further comprising: a light shielding layer, wherein the first substrate is located between the light shielding layer and the second liquid crystal layer, and the vertical projection of the liquid crystal antenna on the first substrate falls on the The light shielding layer is in the vertical projection of the first substrate.

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