Display device

Abstract

A display device includes at least one display panel, a cholesteric liquid crystal layer, and a light-transmitting ink layer. The cholesteric liquid crystal layer is disposed on the at least one display panel. The arrangement of a plurality of cholesteric liquid crystal molecules in the cholesteric liquid crystal layer is always fixed. The light-transmitting ink layer is disposed on the cholesteric liquid crystal layer. The cholesteric liquid crystal layer is located between the light-transmitting ink layer and the at least one display panel.

Description

Technical Field

[0001] This invention relates to an optoelectronic device, and more particularly to a display device. Background Technology

[0002] In recent years, the electric vehicle market has developed rapidly. Generally speaking, electric vehicles use a very high proportion of display devices to display driving information and / or entertainment information. To create an overall atmosphere in the vehicle cabin, the surface of the display devices often has decorative films that can display decorative patterns, such as wood grain or checkerboard patterns. However, the decorative film can hardly display its color after being applied to the display panel, resulting in a poor decorative effect. Summary of the Invention

[0003] This invention provides a display device with excellent decorative and display effects.

[0004] The display device of the present invention includes at least one display panel, a cholesteric liquid crystal layer, and a light-transmitting ink layer. The cholesteric liquid crystal layer is disposed on the at least one display panel. The arrangement of a plurality of cholesteric liquid crystal molecules in the cholesteric liquid crystal layer is always fixed. The light-transmitting ink layer is disposed on the cholesteric liquid crystal layer. The cholesteric liquid crystal layer is located between the light-transmitting ink layer and the at least one display panel. Attached Figure Description

[0005] Figure 1 This is a cross-sectional schematic diagram of a display device according to an embodiment of the present invention.

[0006] Figure 2 This is a cross-sectional schematic diagram of a display panel according to an embodiment of the present invention.

[0007] Figure 3 This is a cross-sectional schematic diagram of a cholesterol liquid crystal layer according to an embodiment of the present invention.

[0008] Figure 4 The reflectance spectrum of a cholesterol liquid crystal layer according to an embodiment of the present invention is shown.

[0009] Figure 5 The reflection spectrum of a light-transmitting ink layer according to an embodiment of the present invention is shown.

[0010] Figure 6 This is a cross-sectional schematic diagram of a display device according to another embodiment of the present invention.

[0011] Figure 7 The reflection spectrum of the light-transmitting ink layer and the cholesterol liquid crystal layer according to another embodiment of the present invention is shown.

[0012] Figure 8 This is a cross-sectional schematic diagram of a display device according to another embodiment of the present invention.

[0013] Figure 9This is a top view schematic diagram showing a transparent ink layer and a cholesterol liquid crystal layer according to another embodiment of the present invention.

[0014] Figure 10 This is a cross-sectional schematic diagram of a display device according to another embodiment of the present invention.

[0015] Figure 11 This is a top view schematic diagram of the light-transmitting ink layer and the cholesterol liquid crystal layer according to another embodiment of the present invention.

[0016] Figure 12 This is a cross-sectional schematic diagram of a display device according to an embodiment of the present invention.

[0017] Figure 13 This is a top view schematic diagram showing a transparent ink layer and a cholesterol liquid crystal layer according to an embodiment of the present invention.

[0018] Figure 14 This is a cross-sectional schematic diagram of a display device according to another embodiment of the present invention.

[0019] Figure 15 A top view schematic diagram showing a light-transmitting ink layer and a cholesterol liquid crystal layer according to another embodiment of the present invention is shown.

[0020] Figure 16 This is a cross-sectional schematic diagram of a display device according to another embodiment of the present invention.

[0021] Figure 17 This is a top view schematic diagram showing a transparent ink layer and a cholesterol liquid crystal layer according to another embodiment of the present invention.

[0022] Figure 18 This is a cross-sectional schematic diagram of a display device according to another embodiment of the present invention.

[0023] Figure 19 This is a top view schematic diagram showing a transparent ink layer and a cholesterol liquid crystal layer according to another embodiment of the present invention.

[0024] Figure 20 This is a top view schematic diagram of a display device according to an embodiment of the present invention.

[0025] Figure 21 This is a cross-sectional schematic diagram of the light-transmitting ink layer and the cholesterol liquid crystal layer according to an embodiment of the present invention.

[0026] Figure 22 This is a top view schematic diagram of a display device according to another embodiment of the present invention.

[0027] The annotations in the attached figures are explained as follows: 100, 100A, 100B, 100C, 100D, 100E, 100F, 100G, 100H, 100I: Display devices 110: Display panel 112: Pixel driving circuit board 114: Opposing substrate 116: Display medium 120, 120D, 120F, 120H: Cholesterol liquid crystal layer 120a: Cholesterol liquid crystal molecule 121, 121D, 121F, 131, 131F: Part One 122, 122D, 122F, 132, 132F: Part Two 123, 133: Part Three 130, 130A, 130B, 130C, 130E, 130F, 130G, 130H: Translucent ink layer DS, DSH: Decorative Structure d: film thickness I1, I2: Boundary L: Natural light L1, L2: Reflected beams p: pitch. Detailed Implementation

[0028] Reference will now be made in detail to exemplary embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same element references are used in the drawings and description to denote the same or similar parts.

[0029] It should 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 may be directly on or connected to the other element, or an intermediate element may also be present. Conversely, when an element is referred to as being "directly on" or "directly connected" to another element, no intermediate element is present. As used herein, "connection" can refer to physical and / or electrical connection. Furthermore, "electrical connection" or "coupling" may involve the presence of other elements between the two elements.

[0030] As used herein, “about,” “approximately,” or “substantially” includes the value and the average value within an acceptable range of deviations from a particular value as determined by one of ordinary skill in the art, taking into account the measurement under discussion and a particular number of errors associated with the measurement (i.e., limitations of the measurement system). For example, “about” may mean within one or more standard deviations of the value, or within ±30%, ±20%, ±10%, ±5%. Furthermore, the use of “about,” “approximately,” or “substantially” herein may be chosen based on the optical, etched, or other properties to select a more acceptable range of deviations or standard deviations, and may not require a single standard deviation to apply to all properties.

[0031] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted as having the same meaning as they have in the context of the relevant technology and the invention, and will not be interpreted as having an idealized or overly formal meaning unless expressly defined herein.

[0032] Figure 1 This is a cross-sectional schematic diagram of a display device according to an embodiment of the present invention. Figure 2 This is a cross-sectional schematic diagram of a display panel according to an embodiment of the present invention. Please refer to... Figure 1 The display device 100 includes at least one display panel 110. The display panel 110 may include a pixel driving circuit board 112, a counter board 114, and a display medium 116 disposed between the pixel driving circuit board 112 and the counter board 114.

[0033] For example, in some embodiments, the display medium 116 may include a plurality of light-emitting elements (not shown) electrically connected to a plurality of pixel driving circuits (not shown) on the pixel driving circuit substrate 112. In some embodiments, the light-emitting elements are, for example, micro light-emitting diodes or organic light-emitting diodes, but the present invention is not limited thereto. In other embodiments, the display medium 116 may include a liquid crystal layer, and an upper polarizer and a lower polarizer may be respectively attached to the pixel driving circuit substrate 112 and the opposing substrate 114, and a backlight module (not shown) may also be provided behind the display panel 110, but the present invention is not limited thereto.

[0034] Please refer to Figure 1 The display device 100 also includes a cholesteric liquid crystal layer 120 disposed on at least one display panel 110. The cholesteric liquid crystal layer 120 is disposed outside the display panel 110. Please refer to... Figure 1 and Figure 2 In some embodiments, the opposing substrate 114 of the display panel 110 is located between the cholesteric liquid crystal layer 120 and the display medium 116.

[0035] Figure 3 This is a schematic cross-sectional view of a cholesterol liquid crystal layer according to an embodiment of the present invention. Please refer to... Figure 1 and Figure 3The arrangement of the plurality of cholesterol liquid crystal molecules 120a in the cholesterol liquid crystal layer 120 is always fixed. For example, in some embodiments, the cholesterol liquid crystal layer 120 can be fabricated using the following method: first, an alignment layer is formed on a substrate; then, a mixture of cholesterol liquid crystal and polymerizable monomers is coated onto the alignment layer; finally, the polymerizable monomers are polymerized by heating or irradiation to combine the cholesterol liquid crystal molecules with polymer chains to form a fixed three-dimensional structure, thereby keeping the arrangement of the plurality of cholesterol liquid crystal molecules 120a always fixed.

[0036] Figure 4 The reflectance spectrum of a cholesterol liquid crystal layer according to an embodiment of the present invention is shown. Please refer to... Figure 1 and Figure 4 The cholesteric liquid crystal layer 120 can reflect a specific wavelength range. For example, in some embodiments, the main reflection wavelength range of the cholesteric liquid crystal layer 120 can fall within 525nm to 575nm, including natural light L of various wavelengths. The reflected light beam L2 reflected by the cholesteric liquid crystal layer 120 can be green. However, the present invention is not limited thereto, and the color of the reflected light beam L2 can be adjusted according to actual needs. In other embodiments, the cholesteric liquid crystal layer 120 can also reflect light beams of other colors.

[0037] Please refer to Figure 1 The display device 100 further includes a light-transmitting ink layer 130 disposed on a cholesteric liquid crystal layer 120, wherein the cholesteric liquid crystal layer 120 is located between the light-transmitting ink layer 130 and at least one display panel 110. The light-transmitting ink layer 130 allows some light to pass through and reflects some light. For example, in some embodiments, the transmittance of the light-transmitting ink layer 130 may fall within the range of 20% to 90%, and the reflectance of the light-transmitting ink layer 130 may fall within the range of 1% to 30%, but the present invention is not limited thereto.

[0038] Figure 5 The reflection spectrum of a light-transmitting ink layer according to an embodiment of the present invention is shown. Please refer to... Figure 1 and Figure 5 In some embodiments, the main reflection wavelength range of the light-transmitting ink layer 130 can fall within 425nm~575nm, including natural light L of various wavelengths reflected by the light-transmitting ink layer 130, the reflected light beam L1 is generally yellow-green. However, the present invention is not limited thereto, and the color of the reflected light beam L1 can be adjusted according to actual needs. In other embodiments, the light-transmitting ink layer 130 may also reflect light beams of other colors.

[0039] In some embodiments, a portion of natural light L passing through the translucent ink layer 130 and the cholesteric liquid crystal layer 120 is transmitted to the display panel 110, which may be completely black and almost non-reflective. The decorative structure DS includes the cholesteric liquid crystal layer 120 and the translucent ink layer 130. The decorative structure DS is disposed on the display panel 110. The cholesteric liquid crystal layer 120 and the translucent ink layer 130 have their respective reflection wavelength ranges. According to the additive color mixing principle, the reflected light beam L1 reflected by the translucent ink layer 130 and the reflected light beam L2 reflected by the cholesteric liquid crystal layer 120 can be superimposed, thereby achieving decorative effects with various colors and / or images.

[0040] It is worth mentioning that in the special design of the decorative structure DS, the cholesteric liquid crystal layer 120 serves as the base color layer and the light-transmitting ink layer 130 serves as the main color layer. With the cholesteric liquid crystal layer 120 as the base color layer, the reflective color of the light-transmitting ink layer 130 can be accurately displayed, achieving a good decorative effect. In addition, through the special design of the decorative structure DS, the display device 100 can also simultaneously possess high reflective contrast and high transmittance, so that when the display panel 110 is not displayed, the decorative pattern of the decorative structure DS blends into the environment, and when the display panel 110 is displayed, the displayed image maintains high brightness and high clarity.

[0041] Please refer to Figure 3 The cholesterol liquid crystal layer 120 has a pitch p and a film thickness d. The following table lists the pitch of the cholesterol liquid crystal layer 120. The table below shows the maximum reflectivity and full width at half maximum (FWHM) of the cholesteric liquid crystal layer 120 corresponding to various d / p design values. As can be seen from the data in Table 1, different d / p design values ​​can achieve different reflectivities and different FWHMs of the reflection spectrum, thus creating different background colors. A wider color space can be achieved by combining cholesteric liquid crystal layers 120 with various background colors and transparent ink layers 130. Specifically, by adjusting the ratio (d / p) of the film thickness d to the helix pitch p of the cholesteric liquid crystal layer 120, even under the condition of a fixed helix pitch p and the same center wavelength of reflected light, the reflectivity and FWHM of the reflection spectrum can still be effectively changed. A higher d / p ratio results in more helical structure periods within the cholesteric liquid crystal layer 120, enhancing the Bragg reflection effect and thus increasing the reflectivity of selectively reflected light, resulting in higher brightness and color saturation of the background color; conversely, a lower reflectivity increases the background light component, leading to a darker or softer background color. Furthermore, variations in the full width at half maximum (FWHM) of the reflection spectrum also affect the color purity of the background color. A narrower FWHM concentrates reflected light into a single wavelength band, resulting in a purer and more defined hue, while a wider FWHM causes simultaneous reflection of multiple wavelengths, leading to a mixed color effect with lower purity. Therefore, by combining different d / p design values, various background color representations with varying brightness, saturation, and color purity can be created while maintaining the same center wavelength. Table 2 below summarizes the various factors of the cholesteric liquid crystal layer 120, along with their corresponding descriptions and visual effects.

[0042]

[0043] [Table 1]

[0044] [Table 2]

[0045] It must be noted that the following embodiments use the component reference numerals and some content from the foregoing embodiments, with the same reference numerals used to represent the same or similar components, and descriptions of the same technical content omitted. For explanations of the omitted parts, please refer to the foregoing embodiments; these will not be repeated in the following embodiments.

[0046] Figure 6 This is a cross-sectional schematic diagram of a display device according to another embodiment of the present invention. Figure 7 The reflection spectrum of the light-transmitting ink layer and the cholesterol liquid crystal layer according to another embodiment of the present invention is shown. Figure 6 The display device 100A and Figure 1 The display device 100 is similar to that of the other device, but the differences are as follows. Please refer to... Figure 6 and Figure 7In this embodiment, a portion of the natural light L passing through the light-transmitting ink layer 130A and the cholesteric liquid crystal layer 120 is transmitted to the display panel 110. The display panel 110 can be completely black and almost non-reflective. The main reflection wavelength range (400nm~450nm) of the light-transmitting ink layer 130A is very different from the main reflection wavelength range (525nm~575nm) of the cholesteric liquid crystal layer 120. The color of the reflected light beam L1 reflected by the light-transmitting ink layer 130A (e.g., red) and the color of the reflected light beam L2 reflected by the cholesteric liquid crystal layer 120 (e.g., green) are also different. The reflected light beam L1 and the reflected light beam L2 can be mixed to produce another color (e.g., yellow).

[0047] Figure 8 This is a cross-sectional schematic diagram of a display device according to another embodiment of the present invention. Figure 9 This is a top view schematic diagram showing a transparent ink layer and a cholesterol liquid crystal layer according to another embodiment of the present invention. Figure 8 The display device 100B and Figure 1 The display device 100 is similar to the display device 100, but the difference between the two is that the light-transmitting ink layers 130 and 130B are different.

[0048] Please refer to Figure 8 and Figure 9 Specifically, in this embodiment, the cholesteric liquid crystal layer 120 includes a first portion 121 and a second portion 122 with the same reflection spectrum, and the light-transmitting ink layer 130B includes a first portion 131 and a second portion 132. The first portion 131 and the second portion 132 of the light-transmitting ink layer 130B are respectively disposed on the first portion 121 and the second portion 122 of the cholesteric liquid crystal layer 120, and the first portion 131 and the second portion 132 of the light-transmitting ink layer 130B have different reflection spectra. That is, the first portion 131 and the second portion 132 of the light-transmitting ink layer 130B can have different colors. For example, in some embodiments, the first portion 131 of the light-transmitting ink layer 130B can be yellow-green, and the second portion 132 of the light-transmitting ink layer 130B can be green, but the present invention is not limited thereto.

[0049] In this embodiment, at least one of the light-transmitting ink layer 130B and the cholesteric liquid crystal layer 120 has more than one color. By combining the light-transmitting ink layer 130B and the cholesteric liquid crystal layer 120, different decorative patterns can be created to meet the needs.

[0050] Figure 10 This is a cross-sectional schematic diagram of a display device according to another embodiment of the present invention. Figure 11 This is a top view schematic diagram of the light-transmitting ink layer and the cholesterol liquid crystal layer according to another embodiment of the present invention. Figure 10 The display device 100C and Figure 8The display device is similar to the 100B, but the difference between the two is that the light-transmitting ink layers 130B and 130C are different.

[0051] Please refer to Figure 10 and Figure 11 Specifically, in this embodiment, the cholesterol liquid crystal layer 120 further includes a third part 123. The first part 121, the second part 122, and the third part 123 of the cholesterol liquid crystal layer 120 have the same reflection spectrum. The light-transmitting ink layer 130C further includes a third part 133. The third part 133 of the light-transmitting ink layer 130C is disposed on the third part 123 of the cholesterol liquid crystal layer 120, and the third part 133 of the light-transmitting ink layer 130C is transparent.

[0052] In this embodiment, at least one of the light-transmitting ink layer 130C and the cholesteric liquid crystal layer 120 has more than one color, and the light-transmitting ink layer 130C may also have a transparent portion 133. By combining the light-transmitting ink layer 130C and the cholesteric liquid crystal layer 120, more diverse decorative pattern requirements can be created.

[0053] Figure 12 This is a cross-sectional schematic diagram of a display device according to an embodiment of the present invention. Figure 13 This is a top view schematic diagram showing a transparent ink layer and a cholesterol liquid crystal layer according to an embodiment of the present invention. Figure 12 The display device 100D and Figure 1 The display device 100 is similar to the display device 100, but the difference between the two is that the cholesteric liquid crystal layers 120 and 120D are different.

[0054] Please refer to Figure 12 and Figure 13 Specifically, in this embodiment, the cholesterol liquid crystal layer 120D includes a first part 121D and a second part 122D with different reflection spectra, and the light-transmitting ink layer 130 includes a first part 131 and a second part 132. The first part 131 and the second part 132 of the light-transmitting ink layer 130 are respectively disposed on the first part 121D and the second part 122D of the cholesterol liquid crystal layer 120D, and the first part 131 and the second part 132 of the light-transmitting ink layer 130 have the same reflection spectrum.

[0055] In this embodiment, at least one of the light-transmitting ink layer 130 and the cholesteric liquid crystal layer 120D has more than one color. By combining the light-transmitting ink layer 130 and the cholesteric liquid crystal layer 120D, different decorative patterns can be created to meet the needs.

[0056] Figure 14 This is a cross-sectional schematic diagram of a display device according to another embodiment of the present invention. Figure 15 A top view schematic diagram showing a light-transmitting ink layer and a cholesterol liquid crystal layer according to another embodiment of the present invention is shown. Figure 14 The display device 100E and Figure 12 The display device is similar to the 100D, but the difference between the two is that the light-transmitting ink layers 130 and 130E are different.

[0057] Please refer to Figure 14 and Figure 15 Specifically, in this embodiment, the light-transmitting ink layer 130E further includes a third part 133, which overlaps with the junction I1 of the first part 121D and the second part 122D of the cholesterol liquid crystal layer 120D, and the third part 133 of the light-transmitting ink layer 130E is transparent.

[0058] In this embodiment, at least one of the light-transmitting ink layer 130E and the cholesteric liquid crystal layer 120D has more than one color, and the light-transmitting ink layer 130E may also have a transparent portion 133. By combining the light-transmitting ink layer 130E and the cholesteric liquid crystal layer 120D, more diverse decorative pattern requirements can be created.

[0059] Figure 16 This is a cross-sectional schematic diagram of a display device according to another embodiment of the present invention. Figure 17 This is a top view schematic diagram showing a transparent ink layer and a cholesterol liquid crystal layer according to another embodiment of the present invention. Figure 16 The display device 100F and Figure 1 The display device 100 is similar to the display device 100, but the difference between the two is that the cholesteric liquid crystal layers 120 and 120F are different, and the light-transmitting ink layers 130 and 130F are different.

[0060] Please refer to Figure 16 and Figure 17 Specifically, in this embodiment, the cholesterol liquid crystal layer 120F includes a first part 121F and a second part 122F with different reflection spectra, and the light-transmitting ink layer 130F includes a first part 131F and a second part 132F. The first part 131F and the second part 132F of the light-transmitting ink layer 130F are respectively disposed on the first part 121F and the second part 122F of the cholesterol liquid crystal layer 120F, and the first part 131F and the second part 132F of the light-transmitting ink layer 130F have different reflection spectra.

[0061] In this embodiment, the first portion 121F and the second portion 122F of the cholesteric liquid crystal layer 120F are different colors, and the first portion 131F and the second portion 132F of the light-transmitting ink layer 130F are also different colors. For example, in this embodiment, the first portion 121F and the second portion 122F of the cholesteric liquid crystal layer 120F are green and red, respectively, and the first portion 131F and the second portion 132F of the light-transmitting ink layer 130F are yellow-green and green, respectively, but the present invention is not limited thereto.

[0062] In this embodiment, each of the light-transmitting ink layer 130F and the cholesteric liquid crystal layer 120F has more than one color. By combining the light-transmitting ink layer 130F and the cholesteric liquid crystal layer 120F, more diverse decorative patterns can be created.

[0063] Figure 18 This is a cross-sectional schematic diagram of a display device according to another embodiment of the present invention. Figure 19 This is a top view schematic diagram showing a transparent ink layer and a cholesterol liquid crystal layer according to another embodiment of the present invention. Figure 18 The display device 100G and Figure 16 The display device is similar to the 100F, but the difference between the two is that the light-transmitting ink layers 130F and 130G are different.

[0064] Please refer to Figure 18 and Figure 19 Specifically, in this embodiment, the light-transmitting ink layer 130G further includes a third part 133, which overlaps with the junction I1 of the first part 121F and the second part 122F of the cholesterol liquid crystal layer 120F, and the third part 133 of the light-transmitting ink layer 130G is transparent.

[0065] In this embodiment, each of the light-transmitting ink layer 130G and the cholesteric liquid crystal layer 120F has more than one color, and the light-transmitting ink layer 130G may also have a transparent portion 133. By combining the light-transmitting ink layer 130G and the cholesteric liquid crystal layer 120F, more diverse decorative pattern requirements can be created.

[0066] Figure 20 This is a top view schematic diagram of a display device according to an embodiment of the present invention. Figure 21 This is a cross-sectional schematic diagram of the transparent ink layer and the cholesteric liquid crystal layer according to an embodiment of the present invention. Please refer to... Figure 20 and Figure 21 In the display device 100H, the decorative structure DSH includes a cholesteric liquid crystal layer 120H and a light-transmitting ink layer 130H. The display panel 110 can have any size / shape / curvature, and the decorative structure DSH can also have any size / shape / curvature. Please refer to... Figure 20 In this embodiment, at least one display panel 110 is within the area of ​​the decorative structure DSH, and the decorative structure DSH extends beyond the at least one display panel 110.

[0067] Please refer to Figure 21In this embodiment, the first portion 121, the second portion 122, and the third portion 123 of the cholesterol liquid crystal layer 120H have the same reflection spectrum. The light-transmitting ink layer 130H includes a first portion 131, a second portion 132, and a third portion 133. The first portion 131, the second portion 132, and the third portion 133 of the light-transmitting ink layer 130H are respectively disposed on the first portion 121, the second portion 122, and the third portion 123 of the cholesterol liquid crystal layer 120H. The first portion 131 and the second portion 132 of the light-transmitting ink layer 130H have different reflection spectra, and the third portion 133 of the light-transmitting ink layer 130H is transparent. In this embodiment, the first portion 121, the second portion 122, and the third portion 123 of the cholesterol liquid crystal layer 120H can reflect cyan light, and the light-transmitting ink layer 130H can be dark blue and light blue, respectively, but the present invention is not limited thereto.

[0068] Figure 22 This is a top view schematic diagram of a display device according to another embodiment of the present invention. Please refer to... Figure 22 In the display device 100I, at least one display panel 110 includes a plurality of display panels 110 spaced apart from each other, and a decorative structure DSH overlaps the plurality of display panels 110. The plurality of display panels 110 are within the area of ​​the decorative structure DSH. The decorative structure DSH extends beyond the plurality of display panels 110.

Claims

1. A display device, comprising: At least one display panel; A cholesteric liquid crystal layer is disposed on the at least one display panel, wherein the arrangement of a plurality of cholesteric liquid crystal molecules in the cholesteric liquid crystal layer is always fixed; and A translucent ink layer is disposed on the cholesteric liquid crystal layer, wherein the cholesteric liquid crystal layer is located between the translucent ink layer and the at least one display panel.

2. The display device of claim 1, wherein the cholesteric liquid crystal layer includes a first portion and a second portion having the same reflection spectrum, the light-transmitting ink layer includes a first portion and a second portion, the first portion and the second portion of the light-transmitting ink layer are respectively disposed on the first portion and the second portion of the cholesteric liquid crystal layer, and the plurality of reflection spectra of the first portion and the second portion of the light-transmitting ink layer are different.

3. The display device as claimed in claim 2, wherein the cholesteric liquid crystal layer further includes a third portion, the first portion, the second portion and the third portion of the cholesteric liquid crystal layer have the same reflection spectrum, the light-transmitting ink layer further includes a third portion, the third portion of the light-transmitting ink layer is disposed on the third portion of the cholesteric liquid crystal layer, and the third portion of the light-transmitting ink layer is transparent.

4. The display device of claim 1, wherein the cholesteric liquid crystal layer includes a first portion and a second portion with different reflection spectra, the light-transmitting ink layer includes a first portion and a second portion, the first portion and the second portion of the light-transmitting ink layer are respectively disposed on the first portion and the second portion of the cholesteric liquid crystal layer, and the first portion and the second portion of the light-transmitting ink layer have the same reflection spectrum.

5. The display device of claim 4, wherein the light-transmitting ink layer further comprises a third portion overlapping a boundary between the first portion and the second portion of the cholesteric liquid crystal layer; the third portion of the light-transmitting ink layer is transparent.

6. The display device of claim 1, wherein the cholesteric liquid crystal layer includes a first portion and a second portion with different reflection spectra, the light-transmitting ink layer includes a first portion and a second portion, the first portion and the second portion of the light-transmitting ink layer are respectively disposed on the first portion and the second portion of the cholesteric liquid crystal layer, and the first portion and the second portion of the light-transmitting ink layer have different reflection spectra.

7. The display device of claim 6, wherein the light-transmitting ink layer further comprises a third portion overlapping a boundary between the first portion and the second portion of the cholesteric liquid crystal layer; the third portion of the light-transmitting ink layer is transparent.

8. The display device of claim 1, wherein a decorative structure includes the cholesteric liquid crystal layer and the light-transmitting ink layer, the at least one display panel is within an area of ​​the decorative structure, and the decorative structure extends beyond the at least one display panel.

9. The display device of claim 1, wherein a decorative structure includes the cholesteric liquid crystal layer and the light-transmitting ink layer, the at least one display panel includes a plurality of display panels spaced apart from each other, and the decorative structure overlaps the plurality of display panels.

10. The display device of claim 9, wherein the plurality of display panels are located within an area of ​​the decorative structure, and the decorative structure extends beyond the plurality of display panels.

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