TWI819901B - Decoration panel and display apparatus - Google Patents

Abstract

A decoration panel includes a first substrate, a first transparent conductive layer, a first transparent insulating structure, a first cholesteric liquid crystal layer, a separation layer, a second cholesteric liquid crystal layer, a second substrate, a second transparent conductive layer and a second transparent insulating structure. The first transparent conductive layer is disposed on the first substrate. The first transparent insulating structure is disposed on the first substrate. The first cholesteric liquid crystal layer is disposed on the first transparent conductive layer and the first transparent insulating structure. The separation layer is disposed on the first cholesteric liquid crystal layer. The second cholesteric liquid crystal layer is disposed on the separation layer. The second substrate is disposed on the second cholesteric liquid crystal layer. The second transparent conductive layer is disposed between the second substrate and the second cholesteric liquid crystal layer. The second transparent insulating structure is disposed on at least one of the separation layer and the second substrate. The first transparent insulating structure and the second transparent insulating structure are partially overlapped or staggered. Moreover, a display apparatus including the decoration panel is also provided.

Description

Decorative panels and display devices

The present invention relates to a photoelectric panel and a photoelectric device, and in particular to a decorative panel and a display device.

In recent years, the electric vehicle market has developed rapidly. Generally speaking, electric vehicles use very high-proportion display devices for displaying driving information and/or entertainment information. In order to create the overall atmosphere of the vehicle room space, the surface of the display device is often provided with a decorative film that can present decorative patterns, such as wood grain, checkerboard decorative film, etc. However, no matter whether the display device is turned on or off, the decorative pattern of the display device is always present, and the user cannot freely choose whether to present the decorative pattern according to his or her needs.

The present invention provides a decorative panel that can display or not display decorative patterns according to the user's choice.

The present invention provides a display device that can display or not display decorative patterns according to user selection.

The decorative panel of the present invention includes a first base, a first light-transmitting conductive layer, a first light-transmitting structure, a first cholesteric liquid crystal layer, a separation layer, a second cholesteric liquid crystal layer, a second base, a second light-transmitting conductive layer and a third Two light-transmitting structures. The first light-transmissive conductive layer is disposed on the first substrate. The first light-transmitting structure is disposed on the first substrate. The first cholesteric liquid crystal layer is disposed on the first light-transmitting conductive layer and the first light-transmitting structure. The separation layer is disposed on the first cholesteric liquid crystal layer. The second cholesteric liquid crystal layer is disposed on the separation layer. The second substrate is disposed on the second cholesteric liquid crystal layer. The second light-transmissive conductive layer is disposed between the second substrate and the second cholesteric liquid crystal layer. The second light-transmitting structure is disposed on at least one of the separation layer and the second substrate. The first light-transmitting structure and the second light-transmitting structure are partially overlapped or offset.

The display device of the present invention includes the above-mentioned decorative panel and display panel. The decorative panel is arranged above the display panel.

Reference will now be made in detail to the exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Whenever possible, the same reference numbers are used in the drawings and descriptions to refer to the same or similar parts.

It will be understood that when an element such as a layer, film, region or substrate is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element, or Intermediate elements may also be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present. As used herein, "connected" may refer to a physical and/or electrical connection. Furthermore, "electrical connection" or "coupling" may mean the presence of other components between two components.

As used herein, "about," "approximately," or "substantially" includes the stated value and the average within an acceptable range of deviations from the particular value as determined by one of ordinary skill in the art, taking into account the measurements in question and the A specific amount of error associated with a measurement (i.e., the limitations of the measurement system). For example, "about" may mean within one or more standard deviations of the stated value, or within ±30%, ±20%, ±10%, ±5%. Furthermore, the terms "about", "approximately" or "substantially" used herein may be used to select a more acceptable deviation range or standard deviation based on optical properties, etching properties or other properties, and one standard deviation may not apply to all properties. .

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms such as those defined in commonly used dictionaries should be construed to have meanings consistent with their meanings in the context of the relevant technology and the present invention, and are not to be construed as idealistic or excessive Formal meaning, unless expressly defined as such herein.

1A to 1F are schematic cross-sectional views of the manufacturing process of a display device according to an embodiment of the present invention.

Referring to FIG. 1 , first, a first substrate 110 is provided. The first substrate 110 is light-transmissive. For example, in this embodiment, the material of the first substrate 110 may be glass, quartz, organic polymer or other applicable materials, but the invention is not limited thereto.

Next, the first light-transmitting conductive layer 120 and the first light-transmitting structure 130 are formed on the first substrate 110 . The first light-transmitting conductive layer 120 and the first light-transmitting structure 130 are disposed on the first substrate 110 . In this embodiment, the first light-transmitting conductive layer 120 can optionally be formed on the first substrate 110 first, and then the first light-transmitting structure 130 can be formed on the first light-transmitting conductive layer 120 . However, the present invention is not limited to this. In other embodiments, the first light-transmitting structure 130 may be formed on the first substrate 110 first, and then the first light-transmitting structure 130 may be formed on the first substrate 110 and the first light-transmitting structure 130. A light-transmissive conductive layer 120.

In this embodiment, the first light-transmissive conductive layer 120 is a conductive pattern on the entire surface. For example, in this embodiment, the first light-transmitting conductive layer 120 may be made of metal oxide, such as indium tin oxide, indium zinc oxide, aluminum tin oxide, aluminum zinc oxide, indium germanium zinc. oxide, other suitable oxides, or a stacked layer of at least two of the above, but the invention is not limited thereto. In this embodiment, the first light-transmitting structure 130 can be formed using in-jet printing and curing processes in sequence; the height H130 and shape of the first light-transmitting structure 130 can be determined by the in-jet printing process as required. Depending on the process conditions, the present invention is not limited. The first light-transmitting structure 130 may be conductive or insulating. For example, in this embodiment, the first light-transmitting structure 130 may be insulated; the material of the first light-transmitting structure 130 may be, for example, but not limited to, an organic material. However, the present invention is not limited thereto. In another embodiment, the first light-transmitting structure 130 may also be conductive; the material of the first light-transmitting structure 130 may be, for example, but not limited to, indium tin oxide.

Next, a retaining wall 140 is formed on the first substrate 110, where the retaining wall 140 is disposed around the first light-transmitting structure 130 and defines the first accommodation space 140a. In this embodiment, the retaining wall 140 can be a sticky sealant or a non-sticky bank, which is not limited by the present invention.

Referring to FIG. 1B , next, the first cholesteric liquid crystal layer 150 is formed in the first accommodation space 140 a. The first cholesteric liquid crystal layer 150 is disposed on the first light-transmitting conductive layer 120 and the first light-transmitting structure 130 . For example, in this embodiment, an in-jet printing process can be used to form the first cholesteric liquid crystal layer 150 in the first accommodation space 140a, but the invention is not limited thereto.

Please refer to FIG. 1C. Next, a separation layer 160 is formed on the blocking wall 140 and the first cholesteric liquid crystal layer 150 to seal the first cholesteric liquid crystal layer 150 in the first accommodation space 140a. The separation layer 160 is disposed on the blocking wall 140 and the first cholesteric liquid crystal layer 150 . The separation layer 160 is light-transmissive. For example, in this embodiment, an inkjet printing process can be used to form a polymer material layer on the blocking wall 140 and the first cholesteric liquid crystal layer 150, and then solidified to form the separation layer 160. However, the present invention does not use this method. is limited. In this embodiment, the material of the separation layer 160 is, for example, polyvinyl alcohol (PVA), polyacrylic acid (polyacrylic acid) or other applicable materials, but the invention is not limited thereto.

Please refer to FIG. 1D . Next, in this embodiment, a second light-transmitting structure 170 can be selectively formed on the separation layer 160 . The first light-transmitting structure 130 and the second light-transmitting structure 170 may partially overlap or be staggered. In this embodiment, the second light-transmitting structure 170 can be formed using inkjet printing and curing processes in sequence; the height H170 and shape of the second light-transmitting structure 170 can be determined according to the process conditions of the inkjet printing process as required. Inventions are not limited. The second light-transmissive structure 170 may be conductive or insulating. For example, in this embodiment, the second light-transmitting structure 170 can be insulated; the material of the second light-transmitting structure 170 can be, for example, but not limited to, an organic material. However, the present invention is not limited thereto. In another embodiment, the second light-transmitting structure 170 may also be conductive; the material of the second light-transmitting structure 170 may be, for example, but not limited to, indium tin oxide.

Next, a sealant 180 is formed on the separation layer 160, where the sealant 180 is disposed around the second light-transmitting structure 170 and defines the second accommodation space 180a.

Next, the second cholesteric liquid crystal layer 190 is formed in the second accommodation space 180a. The second cholesteric liquid crystal layer 190 is disposed on the separation layer 160 . For example, in this embodiment, an in-jet printing process can be used to form the second cholesteric liquid crystal layer 190 in the second accommodation space 180a, but the invention is not limited thereto.

Please refer to FIG. 1D. Next, a counter substrate 200 is provided. The opposite substrate 200 includes a second base 201 and a second light-transmissive conductive layer 202 disposed on the second base 201 . The second substrate 201 is light-transmissive. For example, in this embodiment, the material of the second substrate 201 can be glass, quartz, organic polymer or other suitable materials; the material of the second light-transmitting conductive layer 202 can be a metal oxide, such as indium tin. oxide, indium zinc oxide, aluminum tin oxide, aluminum zinc oxide, indium germanium zinc oxide, other suitable oxides, or a stacked layer of at least two of the above; but the present invention is not limited thereto.

Next, the second cholesteric liquid crystal layer 190 is encapsulated using the opposite substrate 200 . After the packaging is completed, the second substrate 201 is disposed on the second cholesteric liquid crystal layer 190 , and the second light-transmissive conductive layer 202 is disposed between the second substrate 201 and the second cholesteric liquid crystal layer 190 . At this point, the decorative panel DP is completed. The decorative panel DP includes a first base 110, a first light-transmitting conductive layer 120, a first light-transmitting structure 130, a blocking wall 140, a first cholesteric liquid crystal layer 150, a separation layer 160, a second light-transmitting structure 170, a frame glue 180, The second cholesteric liquid crystal layer 190 and the opposite substrate 200 .

Please refer to FIG. 1F. Next, in this embodiment, the decorative panel DP and the display panel 300 can be selectively assembled, wherein the display panel 300 is disposed behind the decorative panel DP. At this point, the display device 10 of this embodiment is completed. The display device 10 of this embodiment has both decoration and display functions. In this embodiment, the display panel 300 may be a self-luminous display panel (such as a micro light-emitting diode display panel, an organic light-emitting diode display panel, etc.) or a non-self-luminous display panel (such as a liquid crystal display panel, etc.). Inventions are not limited.

Please refer to FIG. 1F , the decorative panel DP includes a first part DP1 and a second part DP2. The first part DP1 at least includes a first cholesteric liquid crystal layer 150 and a first light-transmitting structure 130 . The second part DP2 at least includes a second cholesteric liquid crystal layer 190 and a second light-transmitting structure 170 . Both the first part DP1 and the second part DP2 include a first light-transmissive conductive layer 120 and a second light-transmissive conductive layer 202 . The first part DP1 and the second part DP2 share the first light-transmissive conductive layer 120 and the second light-transmissive conductive layer 202 .

Figure 2 is a schematic diagram of a first decorative pattern according to an embodiment of the present invention. Figure 3 is a schematic diagram of a second decorative pattern according to an embodiment of the present invention. Figure 4 is a schematic diagram of a decorative pattern according to an embodiment of the present invention.

1F, 2, 3 and 4, the display device 10 can switch between the display mode and the decoration mode. When the display device 10 is in the decoration mode, the display device 10 may present the decoration pattern PT (shown in FIG. 4 ). In particular, the decorative pattern PT is formed by superimposing a first decorative pattern PT1 provided by the first part DP1 of the decorative panel DP and a second decorative pattern PT2 presented by the second part DP2 of the decorative panel DP. The mechanism for presenting the decorative pattern PT will be described below with reference to FIGS. 1F, 2, 3 and 4.

Please refer to FIG. 1F and FIG. 2 . When the display device 10 is in the decoration mode, the decorative panel DP is not enabled (that is, the potential difference between the first light-transmitting conductive layer 120 and the second light-transmitting conductive layer 202 is substantially 0). A cholesteric liquid crystal layer 150 is in a reflective state (or, in other words, a planar state), and the first part DP1 of the decorative panel DP presents the first decorative pattern PT1. In particular, the first decorative pattern PT1 presented in the first part DP1 of the decorative panel DP corresponds to the first light-transmitting structure 130 . In this embodiment, the first decorative pattern PT1 substantially overlaps with the first light-transmitting structure 130 . That is to say, in the top view of the display device 10 , the texture of the first decorative pattern PT1 substantially coincides with the position of the first light-transmitting structure 130 .

The first area DP1a of the first part DP1 of the decorative panel DP does not include the first light-transmitting structure 130 . The second area DP1 b of the first part DP1 of the decorative panel DP includes a first light-transmitting structure 130 . The thickness T1a of the first cholesteric liquid crystal layer 150 in the first region DP1a is greater than the thickness T1b of the first cholesteric liquid crystal layer 150 in the second region DP1b.

When the display device 10 is in the decoration mode, the decoration panel DP is not enabled and the first cholesteric liquid crystal layer 150 is in a reflective state (or, in other words, a planar state). At this time, the thickness T1a of the first cholesteric liquid crystal layer 150 in the first area DP1a is thicker, the reflectivity of the first area DP1a is higher, and the first area DP1a is biased towards showing the light intended to be reflected by the first part DP1 of the decorative panel DP. color. The thickness T1b of the first cholesteric liquid crystal layer 150 in the second region DP1b is thinner, the reflectivity of the second region DP1b is lower (that is, the transmittance is higher), and the second region DP1b tends to appear on the display panel behind the decorative panel DP. 300 colors. Thereby, the first part DP1 of the decorative panel DP can present the first decorative pattern PT1.

Please refer to FIG. 1F and FIG. 3 . When the display device 10 is in the decoration mode, the decorative panel DP is not enabled (that is, the potential difference between the first light-transmitting conductive layer 120 and the second light-transmitting conductive layer 202 is substantially 0). The dicholesterol liquid crystal layer 190 is in a reflective state (or in a planar state), and the second part DP2 of the decorative panel DP presents the second decorative pattern PT2. In particular, the second decorative pattern PT2 presented in the second part DP2 of the decorative panel DP corresponds to the second light-transmitting structure 170 . In this embodiment, the second decorative pattern PT2 substantially overlaps with the second light-transmitting structure 170 . That is to say, in the top view of the display device 10 , the texture of the second decorative pattern PT2 substantially coincides with the position of the second light-transmitting structure 170 .

The first area DP2a of the second part DP2 of the decorative panel DP does not include the second light-transmitting structure 170. The second area DP2b of the second part DP2 of the decorative panel DP includes a second light-transmitting structure 170. The thickness T2a of the second cholesteric liquid crystal layer 190 in the first region DP2a is greater than the thickness T2b of the second cholesteric liquid crystal layer 190 in the second region DP2b.

When the display device 10 is in the decoration mode, the decoration panel DP is not enabled and the second cholesteric liquid crystal layer 190 is in a reflective state (or, in other words, a planar state). At this time, the thickness T2a of the second cholesteric liquid crystal layer 190 in the first area DP2a is thicker, the reflectivity of the first area DP2a is higher, and the first area DP2a is biased towards showing the reflection intended by the second part DP2 of the decorative panel DP. color. The thickness T2b of the second cholesteric liquid crystal layer 190 in the second region DP2b is thinner, the reflectivity of the second region DP2b is lower (that is, the transmittance is higher), and the second region DP2b tends to appear on the display panel behind the decorative panel DP. 300 colors. Thereby, the second part DP2 of the decorative panel DP can present the second decorative pattern PT2.

When the display device 10 is in the decoration mode, the first part DP1 and the second part DP2 of the decoration panel DP respectively present the first decoration pattern PT1 and the second decoration pattern PT2. The first decoration pattern PT1 and the second decoration pattern PT2 can be superimposed into content. / Decorative patterns PT with richer and more colorful colors elevate the decorative effect of the display device 10 to another level.

Please refer to FIG. 1F. In this embodiment, the pitch of the first cholesteric liquid crystal layer 150 and the pitch of the second cholesteric liquid crystal layer 190 may be different, and the first part DP1 and the second part DP2 of the decorative panel DP are predetermined to reflect the color. But it's different. For example, in this embodiment, the colors intended to be reflected by the first part DP1 and the second part DP2 of the decorative panel DP may be red and green respectively.

Please refer to FIG. 1F and FIG. 2 . In this embodiment, when the display device 10 is in the decoration mode, the display panel 300 can be selectively disabled and appear black. At this time, the first area DP1a of the first part DP1 of the decorative panel DP, for example, appears light red, and the second area DP1b of the first part DP1 of the decorative panel DP, for example, appears reflected by the first cholesteric liquid crystal layer 150 of the second area DP1b. The red color is a dark red color mixed with the black color provided by the disabled display panel 300 at the rear.

In this embodiment, the first area DP1a of the first part DP1 of the decorative panel DP may correspond to the light red wood area PT1a of the first decorative pattern PT1, and the second area DP1b of the first part DP1 of the decorative panel DP may correspond to the first decoration The dark red wood grain area PT1b of the pattern PT1, and the entire first decorative pattern PT1 can present a red log section.

Please refer to FIG. 1F and FIG. 3 . When the display device 10 is in the decoration mode, the first area DP2a of the second part DP2 of the decorative panel DP appears light green, and the second area DP2b of the second part DP2 of the decorative panel DP appears as follows. The green color reflected by the second cholesteric liquid crystal layer 190 of the second region DP2b is a dark green color mixed with the black color provided by the unenabled display panel 300 at the rear.

In this embodiment, the first area DP2a of the second part DP2 of the decorative panel DP is the light green wood area PT2a corresponding to the second decorative pattern PT2, and the second area DP2b of the second part DP2 of the decorative panel DP corresponds to the second The dark green wood grain area PT2b of the decorative pattern PT2, while the entire second decorative pattern PT2 presents a green log section.

In this embodiment, the distribution manner of the first light-transmitting structure 130 and the distribution manner of the second light-transmitting structure 170 can be selectively the same, and the first light-transmitting structure 130 and the second light-transmitting structure 170 are slightly staggered. Specifically, in this embodiment, the first decorative pattern PT1 corresponding to the first light-transmitting structure 130 may be a red log section, and the second decorative pattern PT2 corresponding to the second light-transmitting structure 170 may be a green log section, where the red The wood grain of the log section is slightly offset from the wood grain of the green log section, and the decorative pattern PT formed by superimposing the first decorative pattern PT1 and the second decorative pattern PT2 can present a more layered log section with a shadow-like effect.

However, the present invention is not limited thereto. In other embodiments, the pattern and/or color of the first decorative pattern PT1 can be changed by changing the pattern of the first light-transmitting structure 130 and/or the pitch of the first cholesteric liquid crystal layer 150. Changing the distribution of the second light-transmitting structure 170 and/or the pitch of the second cholesteric liquid crystal layer 190 can change the pattern and/or color of the second decorative pattern PT2, thereby superimposing a decorative pattern PT with more diverse patterns and/or colors.

Please refer to FIG. 1F. In this embodiment, through the cooperation of the first part DP1 and the second part DP2 of the decorative panel DP, the decorative panel DP can provide more than two colors. For example, in this embodiment, the first area DP1a of the first part DP1 of the decorative panel DP reflects a larger amount of red light, and the second area DP1b of the first part DP1 of the decorative panel DP reflects a smaller amount of red light. The first area DP2a of the second part DP2 of the panel DP reflects a greater amount of green light, and the second area DP2b of the second part DP2 of the decorative panel DP reflects a smaller amount of green light. In the area I where the first area DP1a of the first part DP1 of the decorative panel DP overlaps with the first area DP2a of the second part DP2 of the decorative panel DP, a larger amount of red light and a larger amount of green light are reflected and mixed into the first type Color light. In the area II where the second area DP1b of the first part DP1 of the decorative panel DP overlaps the first area DP2a of the second part DP2 of the decorative panel DP, a smaller amount of red light and a larger amount of green light are reflected and mixed into the second area II. Colored light. In the area III where the first area DP1a of the first part DP1 of the decorative panel DP overlaps with the second area DP2b of the second part DP2 of the decorative panel DP, a larger amount of red light and a smaller amount of green light are reflected and mixed into a third Colored light.

Please refer to FIG. 1F. On the other hand, the display device 10 can be switched to a display mode in addition to the above-mentioned decoration mode. When the display device 10 is in the display mode, the decorative panel DP is enabled (that is, the potential difference between the first light-transmitting conductive layer 120 and the second light-transmitting conductive layer 202 is substantially greater than 0), and the first cholesteric liquid crystal layer 150 and the second cholesteric liquid crystal layer 150 are The liquid crystal layer 190 is in a transmissive state. At this time, the display light beam emitted by the display panel 300 will pass through the decorative panel DP and transmit the display information carried by it to the user's eyes. In this embodiment, the penetration state may refer to the focal conic state or the vertical state, which is not limited by the present invention.

It is worth mentioning that by using the decorative panel DP including the first light-transmitting structure 130 and the second light-transmitting structure 170, the display device 10 can not only present the decorative pattern PT in the decoration mode, but also display the decorative pattern PT according to the user's needs in the display mode. It is selected to present the display information of the display panel 300 without presenting the decorative pattern PT. That is to say, by integrating the switchable decorative panel DP, the display device 10 can have more diverse functions. More importantly, the first decorative pattern PT1 and the second decorative pattern PT2 can be provided through the first part DP1 and the second part DP2 of the decorative panel DP having the first light-transmitting structure 130 and the second light-transmitting structure 170 respectively. The decorative pattern PT1 and the second decorative pattern PT2 can form a decorative pattern PT with richer and more diverse contents and/or colors, thereby raising the decorative effect of the display device 10 to another level.

In addition, in this embodiment, the first part DP1 and the second part DP2 of the decorative panel DP share the same set of light-transmitting electrodes (ie, the first light-transmitting conductive layer 120 and the second light-transmitting conductive layer 202 ). That is to say, the first part DP1 and the second part DP2 of the decorative panel DP are integrated in the same unit cell (Cell) formed by the first substrate 110 and the second substrate 201, which has the advantages of simple manufacturing process and thin thickness.

It must be noted here that the following embodiments follow the component numbers and part of the content of the previous embodiments, where the same numbers are used to represent the same or similar elements, and descriptions of the same technical content are omitted. For descriptions of omitted parts, reference may be made to the foregoing embodiments and will not be repeated in the following embodiments.

FIG. 5 is a schematic cross-sectional view of a display device according to another embodiment of the present invention. The display device 10A of FIG. 5 is similar to the display device 10 of FIG. 1F . The difference between the two is that the second light-transmitting structure 170 is formed at a different position.

Specifically, in the embodiment of FIG. 1F , the second light-transmitting structure 170 is disposed on the separation layer 160 ; in the embodiment of FIG. 5 , the second light-transmitting structure 170 may include respectively disposed on the separation layer 160 and the second The first part 171 and the second part 172 on the base 201 . The present invention does not limit the second light-transmitting structure 170 to be formed only on the separation layer 160, nor does it limit the second light-transmitting structure 170 to be formed on the separation layer 160 and the second substrate 201. In yet another embodiment, the second light-transmitting structure 170 may be disposed on the second substrate 201 rather than on the separation layer 160 .

10, 10A: display device 110:First base 120: First light-transmitting conductive layer 130: First light-transmitting structure 140: retaining wall 140a: First accommodation space 150: First cholesteric liquid crystal layer 160:Separation layer 170: Second light-transmitting structure 171:Part One 172:Part 2 180: frame glue 180a: Second accommodation space 190: Second cholesteric liquid crystal layer 200:Opposite substrate 201:Second base 202: Second light-transmitting conductive layer 300:Display panel DP: decorative panel DP1:Part One DP1a, DP2a: first area DP1b, DP2b: second area DP2:Part Two H130, H170: height PT: decorative pattern PT1: First decorative pattern PT1a: light red wood area PT1b: Dark red wood grain area PT2: Second decorative pattern PT2a:Light green wood area PT2b: Dark green wood grain area T1a, T1b, T2a, T2b: Thickness I, II, III: Area

1A to 1F are schematic cross-sectional views of the manufacturing process of a display device according to an embodiment of the present invention. Figure 2 is a schematic diagram of a first decorative pattern according to an embodiment of the present invention. Figure 3 is a schematic diagram of a second decorative pattern according to an embodiment of the present invention. Figure 4 is a schematic diagram of a decorative pattern according to an embodiment of the present invention. FIG. 5 is a schematic cross-sectional view of a display device according to another embodiment of the present invention.

10:Display device

110:First base

120: First light-transmitting conductive layer

130: First light-transmitting structure

140: retaining wall

140a: First accommodation space

150: First cholesteric liquid crystal layer

160:Separation layer

170: Second light-transmitting structure

180: frame glue

180a: Second accommodation space

190: Second cholesteric liquid crystal layer

200:Opposite substrate

201:Second base

202: Second light-transmitting conductive layer

300:Display panel

DP: decorative panel

DP1:Part One

DP1a, DP2a: first area

DP1b, DP2b: second area

DP2:Part Two

H130, H170: height

T1a, T1b, T2a, T2b: Thickness

I, II, III: Area

Claims (16)

A decorative panel, including: a first substrate; a first light-transmissive conductive layer provided on the first substrate; a first light-transmissive structure provided on the first substrate; a first cholesteric liquid crystal layer provided On the first light-transmissive conductive layer and the first light-transmissive structure; a separation layer is provided on the first cholesteric liquid crystal layer; a second cholesteric liquid crystal layer is provided on the separation layer; a second substrate, disposed on the second cholesteric liquid crystal layer; a second light-transmitting conductive layer disposed between the second substrate and the second cholesteric liquid crystal layer; and a second light-transmitting structure disposed on the separation layer and the second cholesteric liquid crystal layer On at least one of the two substrates; the first light-transmitting structure and the second light-transmitting structure are partially overlapped or staggered; in a direction perpendicular to the first substrate, part of the first cholesteric liquid crystal layer is disposed on the third between a light-transmitting structure and the separation layer. The decorative panel of claim 1, wherein the helical pitch of the first cholesteric liquid crystal layer is different from the helical pitch of the second cholesteric liquid crystal layer. The decorative panel of claim 1, wherein the decorative panel is adapted to present a first decorative pattern and a second decorative pattern, and the first decorative pattern and the second decorative pattern respectively correspond to the first light-transmitting structure and the second light-transmitting structure. The decorative panel of claim 3, wherein the first decorative pattern substantially overlaps with the first light-transmitting structure, and the second decorative pattern substantially overlaps with the second light-transmitting structure. The decorative panel as claimed in claim 1, wherein when the decorative panel is disabled, the first cholesteric liquid crystal layer and the second cholesteric liquid crystal layer are in a reflective state and present a first decorative pattern and a second decorative pattern. The decorative panel as claimed in claim 1, wherein when the decorative panel is enabled, the first cholesteric liquid crystal layer and the second cholesteric liquid crystal layer are in a transmissive state. The decorative panel as claimed in claim 1, wherein the second light-transmitting structure is disposed on the separation layer. The decorative panel of claim 1, wherein the second light-transmitting structure includes a first part and a second part respectively disposed on the separation layer and the second base. A display device includes: a display panel; and a decorative panel disposed above the display panel, wherein the decorative panel includes: a first substrate; a first light-transmissive conductive layer disposed on the first substrate; A first light-transmitting structure is provided on the first substrate; a first cholesteric liquid crystal layer is provided on the first light-transmitting conductive layer and the first light-transmitting structure; A separation layer is provided on the first cholesteric liquid crystal layer; a second cholesteric liquid crystal layer is provided on the separation layer; a second substrate is provided on the second cholesteric liquid crystal layer; a second light-transmitting conductive layer , disposed between the second substrate and the second cholesteric liquid crystal layer; and a second light-transmitting structure disposed on at least one of the separation layer and the second substrate, wherein the first light-transmitting structure and the The second light-transmitting structures are partially overlapped or staggered; in a direction perpendicular to the first substrate, part of the first cholesteric liquid crystal layer is disposed between the first light-transmitting structure and the separation layer. The display device of claim 9, wherein the helical pitch of the first cholesteric liquid crystal layer is different from the helical pitch of the second cholesteric liquid crystal layer. The display device of claim 9, wherein the display device is adapted to present a first decorative pattern and a second decorative pattern, and the first decorative pattern and the second decorative pattern respectively correspond to the first light-transmitting structure and the second light-transmitting structure. The display device of claim 11, wherein the first decorative pattern substantially overlaps with the first light-transmitting structure, and the second decorative pattern substantially overlaps with the second light-transmitting structure. The display device of claim 9, wherein when the display device is in a decoration mode, the decorative panel is not enabled, the first cholesteric liquid crystal layer and the second cholesteric liquid crystal layer are in a reflective state, and the display device appears a first decorative pattern and a second decorative pattern. The display device of claim 9, wherein when the display device is in the display mode, the decorative panel is enabled, and the first cholesteric liquid crystal layer and the second cholesteric liquid crystal layer are in a transmissive state. The display device of claim 9, wherein the second light-transmitting structure is disposed on the separation layer. The display device of claim 9, wherein the second light-transmitting structure includes a first part and a second part respectively disposed on the separation layer and the second substrate.