Cholesteric liquid crystal panel

Abstract

A cholesteric liquid crystal panel includes a first substrate, a second substrate, and a cholesteric liquid crystal layer between the first substrate and the second substrate. The first substrate includes a first carrier substrate and a first electrode layer. The second substrate includes a second carrier substrate and a second electrode layer. The first electrode layer is on the first carrier substrate and includes at least one first operation electrode pattern and at least one first common electrode pattern. The first operation electrode pattern is arranged into at least one first mark. The second electrode layer is on the second carrier substrate and includes at least one second operation electrode pattern and at least one second common electrode pattern. The second operation electrode pattern is arranged into at least one second mark.

Description

Technical Field

[0001] This invention relates to a cholesterol-type liquid crystal panel. Background Technology

[0002] Cholesterol liquid crystal displays (CLCs) are non-emissive displays that primarily utilize ambient light as their light source. Generally, stray light passing through cholesterol liquid crystals (CLCs) will have two polarized beams: one type of circularly polarized light in one direction of rotation will be reflected by the CLC, while the other type will pass through. Because CLCs do not require a backlight module and possess bistable characteristics, they also offer energy savings. In CLC display devices, the CLC is typically controlled by an electric field between two electrodes, usually located on opposite sides of the liquid crystal. However, uneven electric field distribution at the electrode edges can lead to distorted display images. Summary of the Invention

[0003] This invention provides a cholesterol-type liquid crystal panel that can improve the problem of chaotic display images caused by uneven electric field distribution.

[0004] At least one embodiment of the present invention provides a cholesteric liquid crystal panel. The cholesteric liquid crystal panel includes a first substrate, a second substrate, and a cholesteric liquid crystal layer located between the first substrate and the second substrate. The first substrate includes a first carrier plate and a first electrode layer. The second substrate includes a second carrier plate and a second electrode layer. The first electrode layer is located on the first carrier plate and includes at least one first operating electrode pattern and at least one first common electrode pattern. The first operating electrode patterns are arranged to form at least one first mark. The second electrode layer is located on the second carrier plate and includes at least one second operating electrode pattern and at least one second common electrode pattern. The second operating electrode patterns are arranged to form at least one second mark.

[0005] Based on the above, by making the first electrode layer include a first operating electrode pattern and a first common electrode pattern, and the second electrode layer include a second operating electrode pattern and a second common electrode pattern, the electric field distribution between the first electrode layer and the second electrode layer can be improved, thereby enhancing the quality of the display screen. Attached Figure Description

[0006] Figure 1A This is a partial cross-sectional schematic diagram of a cholesterol-type liquid crystal panel according to an embodiment of the present invention.

[0007] Figure 1B This is a top view of a first electrode layer according to an embodiment of the present invention.

[0008] Figure 1C This is a top view of a second electrode layer according to an embodiment of the present invention.

[0009] Figures 2A to 2C This is a partially enlarged schematic diagram of some operating electrode patterns or common electrode patterns according to an embodiment of the present invention.

[0010] Figure 3 This is a data graph of the density and modulation conversion function of some operating electrode patterns or common electrode patterns according to an embodiment of the present invention.

[0011] Figures 4A to 4C This is a partially enlarged schematic diagram of some operating electrode patterns or common electrode patterns according to an embodiment of the present invention.

[0012] Figure 5 This is a top view of another first electrode layer according to an embodiment of the present invention.

[0013] Figure 6 This is a top view of another first electrode layer according to an embodiment of the present invention.

[0014] Figure 7 This is a partial cross-sectional schematic diagram of a cholesterol-type liquid crystal panel according to an embodiment of the present invention.

[0015] Figure 8 This is a partial cross-sectional schematic diagram of a cholesterol-type liquid crystal panel according to an embodiment of the present invention.

[0016] Figure 9 This is a top view of another first electrode layer according to an embodiment of the present invention.

[0017] Figure 10 This is a top view of another first electrode layer according to an embodiment of the present invention.

[0018] Figure 11 This is a partial cross-sectional schematic diagram of a cholesterol-type liquid crystal panel according to an embodiment of the present invention.

[0019] Figure 12A and Figure 12B This is a schematic diagram of an image displayed on a cholesteric liquid crystal panel according to an embodiment of the present invention.

[0020] Figure 13A and Figure 13B This is a schematic diagram of an image displayed on a cholesteric liquid crystal panel according to an embodiment of the present invention.

[0021] Figure 14 This is a cross-sectional schematic diagram of a display device according to an embodiment of the present invention.

[0022] Explanation of reference numerals in the attached figures:

[0023] 10, 10A, 10B, 10C, 10D: Cholesterol-type LCD panels

[0024] 20: LCD display panel

[0025] 21: First polarizer

[0026] 22: First substrate

[0027] 23: Active Component Layer

[0028] 24: Orientation Layer

[0029] 25: Liquid Crystal Layer

[0030] 26: Orientation layer

[0031] 27: Filter element

[0032] 28: Second substrate

[0033] 29: Second polarizer

[0034] 30: Touch module

[0035] 100: First substrate

[0036] 110: First carrier board

[0037] 120: Conductive layer

[0038] 130: Insulation layer

[0039] 140: First electrode layer

[0040] 142, 144: Conductive structure

[0041] 142a: First common electrode pattern

[0042] 144a: Pattern of the first operating electrode

[0043] 120a, 120b, 142c, 144b, 144c, 242b, 242c, 244b: Auxiliary lines

[0044] 146, 146A, 146B, 146C: First bonding pad

[0045] 148: Second pad

[0046] 150: First alignment layer

[0047] 200: Second substrate

[0048] 210: Second carrier plate

[0049] 240: Second electrode layer

[0050] 242, 244: Conductive structure

[0051] 242a: Second common electrode pattern

[0052] 244a: Second operating electrode pattern

[0053] 246: Third pad

[0054] 248: Fourth joint pad

[0055] 250: Second alignment layer

[0056] CLC: Cholesterol-type liquid crystal layer

[0057] gp1, gp2: Spacing

[0058] st: slit Detailed Implementation

[0059] Figure 1A This is a partial cross-sectional schematic diagram of a cholesterol-type liquid crystal panel 10A according to an embodiment of the present invention. Figure 1B This is a top view of a first electrode layer according to an embodiment of the present invention. Figure 1C This is a top view of a second electrode layer according to an embodiment of the present invention. Please refer to... Figure 1A The cholesterol-type liquid crystal panel 10A includes a first substrate 100, a second substrate 200, and a cholesterol-type liquid crystal layer (CLC) located between the first substrate 100 and the second substrate 200. The first substrate 100 includes a first carrier plate 110 and a first electrode layer 140. In this embodiment, the first substrate 100 further includes a conductive layer 120, an insulating layer 130, and a first alignment layer 150. The second substrate 200 includes a second carrier plate 210 and a second electrode layer 240. In this embodiment, the second substrate 200 further includes a second alignment layer 250.

[0060] The first substrate 110 and the second substrate 210 include transparent substrates, the materials of which include, for example, glass, organic polymers or other suitable materials. A conductive layer 120 is located on the first substrate 110. In some embodiments, the conductive layer 120 is a transparent conductive layer, the material of which includes metal oxides, such as indium tin oxide or indium zinc oxide.

[0061] An insulating layer 130 is located on and covers the conductive layer 120. In some embodiments, the material of the insulating layer 130 includes silicon oxide, silicon nitride, aluminum oxide, silicon oxynitride, or other suitable materials.

[0062] Please refer to Figure 1A and Figure 1BA first electrode layer 140 is located on a first carrier plate 110. A first alignment layer 150 is located on the first electrode layer 140. In this embodiment, the first electrode layer 140 is formed on an insulating layer 130, and a conductive layer 120 is located between the first electrode layer 140 and the first carrier plate 110. In some embodiments, the first electrode layer 140 is a transparent conductive layer, and its material includes metal oxides, such as indium tin oxide or indium zinc oxide. The first electrode layer 140 includes at least one first common electrode pattern 142a, at least one first operating electrode pattern 144a, at least one auxiliary line 144b, a first pad 146, and a second pad 148. In this embodiment, a first operating electrode pattern 144a is electrically connected to an auxiliary line 144b, wherein the auxiliary line 144b and the first operating electrode pattern 144a belong to the same film layer and together form a conductive structure 144. The conductive structure 144 is separated from the first common electrode pattern 142a. In other words, the first operating electrode pattern 144a and the auxiliary line 144b are separated from the first common electrode pattern 142a. In some embodiments, the spacing gp1 between the conductive structure 144 and the first common electrode pattern 142a is 3.5 micrometers or more, for example, 4 micrometers. The first operating electrode pattern 144a is electrically connected to the first pad 146 via the auxiliary line 144b, and the first common electrode pattern 142a is electrically connected to the second pad 148 via the conductive layer 120. In this embodiment, the conductive layer 120 is formed entirely on the first carrier plate 110 and overlaps the first common electrode pattern 142a and the first operating electrode pattern 144a, but the invention is not limited thereto. In other embodiments, the conductive layer 120 is a patterned conductive film layer.

[0063] One or more first operating electrode patterns 144a are arranged to form at least one first mark. For example, in Figure 1B In this embodiment, the first mark is the Dada Tiger logo, and the first operating electrode pattern 144a is arranged in the shape of Dada Tiger. In other embodiments, the first mark may also include other patterns, such as keyboard patterns, wood grain patterns, etc.

[0064] In this embodiment, the first electrode layer 140 includes a plurality of first common electrode patterns 142a that are structurally separated from each other, wherein a first operating electrode pattern 144a surrounds a portion of the first common electrode patterns 142a, and the first operating electrode pattern 144a is surrounded by another portion of the first common electrode patterns 142a. In this embodiment, the insulating layer 130 has a plurality of conductive holes, and each first common electrode pattern 142a is electrically connected to the conductive layer 120 through a corresponding conductive hole, and is electrically connected to the second pad 148 through the conductive layer 120. Based on this, it is not necessary to provide other auxiliary lines in the first electrode layer 140 to electrically connect the first common electrode pattern 142a surrounded by the first operating electrode pattern 144a to the second pad 148, thereby reducing the number of auxiliary lines in the first electrode layer 140 and thus reducing the impact of auxiliary lines on the integrity of the first mark.

[0065] The first operating electrode pattern 144a and / or the first common electrode pattern 142a have a grayscale design. In some embodiments, the first operating electrode pattern 144a and / or the first common electrode pattern 142a have two or more materials and / or two or more thicknesses. By adjusting the materials and / or thicknesses of the first operating electrode pattern 144a and / or the first common electrode pattern 142a, different grayscale effects can be produced in the resulting display image. Specifically, by adjusting the materials and / or thicknesses of the electrode patterns, the resistance value of the electrode patterns is changed, thereby affecting the electric field E distribution in the cholesteric liquid crystal layer (CLC) and changing the brightness of the displayed image.

[0066] In other embodiments, the first operating electrode pattern 144a and / or the first common electrode pattern 142a have the following characteristics: Figures 2A to 2C The different density designs shown, or as... Figures 4A to 4C The different slit or hole designs shown. By adjusting the proportion of the first electrode layer 140 per unit area, different grayscale effects can be produced in the resulting display image.

[0067] Figure 2A The image shows a partially enlarged view of the first operating electrode pattern 144a and / or the first common electrode pattern 142a when they are not cut into multiple block structures. Figure 2B and Figure 2C This shows a partially enlarged view of the first operating electrode pattern 144a and / or the first common electrode pattern 142a when the first operating electrode pattern 144a and / or the first common electrode pattern 142a are cut into multiple block structures, wherein... Figure 2B The size of the block structure in it is relatively large Figure 2C The blocky structures within are large in size. Figures 2A to 2C middle, Figure 2A The electrode pattern has the highest density, while Figure 2C The electrode pattern has the lowest density.

[0068] Please refer to Figures 2A to 2C A first operating electrode pattern 144a and / or a first common electrode pattern 142a are cut into multiple mutually separated block structures. By adjusting the size of the block structures and the gaps between them, the grayscale of the displayed image can be changed. Specifically, by adjusting the size of the block structures and the gaps between them, the density of the electrode pattern can be changed, and the relationship between the density of the electrode pattern and the modulation transfer function (MTF) is as follows: Figure 3 As shown. The higher the density of the electrode pattern, the smaller the MTF, and the closer the displayed image corresponding to the electrode pattern is to a hazy white (low transmittance); conversely, the lower the density of the electrode pattern, the larger the MTF, and the closer the displayed image corresponding to the electrode pattern is to transparency. For example, when the MTF is 0.5%, a display image with brightness L0 can be obtained, and when the MTF is 90%, a display image with brightness L255 can be obtained.

[0069] Based on the foregoing, different sized block structures and / or different spacing block structures can be designed on the first operating electrode pattern 144a and / or the first common electrode pattern 142a, thereby producing different grayscale effects in the obtained display image. For example, the first operating electrode pattern 144a can be designed with a higher density in the hair and nose areas of Dada Tiger, thereby making the obtained Dada Tiger hair and nose areas closer to a hazy white (lower transmittance).

[0070] In some embodiments, when the first operating electrode pattern 144a is cut into multiple block structures, each block structure is electrically connected to a corresponding auxiliary line, thereby enabling each block structure to be electrically connected to the first pad 146. The aforementioned first auxiliary line may belong to the first electrode layer 140 or to the conductive layer 120 (when the conductive layer 120 is a patterned conductive film layer).

[0071] Figures 4A to 4C A partially enlarged schematic diagram of electrode patterns with different slits or holes is shown. Figure 4A The electrode pattern shows multiple circular holes. Figure 4B The electrode pattern shows multiple dendritic slits, and Figure 4CThe electrode pattern shown has multiple elongated slits. By adjusting the width of the slits or the size of the holes, different grayscale effects can be produced in the resulting display. For example, in some embodiments, the first operating electrode pattern 144a and / or the first common electrode pattern 142a have holes, and the holes have two or more sizes. In some embodiments, the first operating electrode pattern 144a and / or the first common electrode pattern 142a have dendritic slits, and the dendritic slits have two or more widths. In some embodiments, the first operating electrode pattern 144a and / or the first common electrode pattern 142a have elongated slits, and the elongated slits have two or more widths.

[0072] Please refer to Figure 1A and Figure 1C The second electrode layer 240 is located on the second carrier plate 210. The second alignment layer 250 is located on the second electrode layer 240. In some embodiments, the second electrode layer 240 is a transparent conductive layer, and its material includes metal oxides, such as indium tin oxide or indium zinc oxide. The second electrode layer 240 includes at least one second common electrode pattern 242a, auxiliary lines 242b and 242c, at least one second operating electrode pattern 244a, auxiliary lines 244b, a third pad 246, and a fourth pad 248. In this embodiment, the two second common electrode patterns 242a are electrically connected to each other through the auxiliary line 242c and are electrically connected to the auxiliary line 242b. The second operating electrode pattern 244a, auxiliary lines 242b and 242c belong to the same film layer and together form a conductive structure 242. In this embodiment, a second operating electrode pattern 244a is electrically connected to an auxiliary line 244b, wherein the second operating electrode pattern 244a and the auxiliary line 244b belong to the same film layer and together form a conductive structure 244. A conductive structure 242 is separated from the conductive structure 244. In other words, the second common electrode pattern 242a, auxiliary line 242b, and auxiliary line 242c are separated from the second operating electrode pattern 244a and the auxiliary line 244b. In some embodiments, the spacing gp2 between the conductive structure 242 and the conductive structure 244 is 3.5 micrometers or more, for example, 4 micrometers. The second operating electrode pattern 244a is electrically connected to a third pad 246 via the auxiliary line 244b, and the second common electrode pattern 242a is electrically connected to a fourth pad 248 via the auxiliary line 242b.

[0073] One or more second operating electrode patterns 244a are arranged to form at least one second mark. For example, in Figure 1C In this embodiment, the second mark is an AUO mark, and the second operating electrode pattern 244a is arranged in the shape of AUO. In other embodiments, the second mark may also be other patterns, such as a keyboard pattern, a wood grain pattern, etc.

[0074] In this embodiment, the second electrode layer 240 includes a plurality of second common electrode patterns 242a, wherein the second operating electrode pattern 244a surrounds a portion of the second common electrode pattern 242a, and the second operating electrode pattern 244a is surrounded by another portion of the first common electrode pattern 242a.

[0075] The second operating electrode pattern 244a and / or the second common electrode pattern 242a have a grayscale design. In some embodiments, the second operating electrode pattern 244a and / or the second common electrode pattern 242a have two or more materials and / or two or more thicknesses. By adjusting the materials and / or thicknesses of the second operating electrode pattern 244a and / or the second common electrode pattern 242a, different grayscale effects can be produced in the resulting display image. Specifically, by adjusting the materials and / or thicknesses of the electrode patterns, the resistance value of the electrode patterns is changed, thereby affecting the electric field E distribution in the cholesteric liquid crystal layer (CLC) and changing the brightness of the displayed image.

[0076] In other embodiments, the second operating electrode pattern 244a and / or the second common electrode pattern 242a have the following characteristics: Figures 2A to 2C The different density designs shown, or as... Figures 4A to 4C The different slit or hole designs shown. By adjusting the proportion of the conductive area of ​​the second electrode layer 240 per unit area, different grayscale effects can be produced in the resulting display image.

[0077] In this embodiment, by operating the first common electrode pattern 142a, the first operating electrode pattern 144a, the second common electrode pattern 242a, and the second operating electrode pattern 244a, the cholesteric liquid crystal panel 10A displays a first mark (Dada Tiger mark) or a second mark (AUO mark). Specifically, the first common electrode pattern 142a and the second common electrode pattern 242a are electrically connected to a common voltage, one of the first operating electrode pattern 144a and the second operating electrode pattern 244a is electrically connected to the common voltage, and the other of the first operating electrode pattern 144a and the second operating electrode pattern 244a is electrically connected to an operating voltage. When the first common electrode pattern 142a, the second common electrode pattern 242a, and the second operating electrode pattern 244a are all electrically connected to a common voltage (e.g., 0V) and the first operating electrode pattern 144a is electrically connected to an operating voltage (e.g., 40V), the cholesteric liquid crystal panel 10A displays a first mark (Dada Tiger mark) formed by the arrangement of the first operating electrode patterns 144a; when the first common electrode pattern 142a, the second common electrode pattern 242a, and the first operating electrode pattern 144a are all electrically connected to a common voltage (e.g., 0V) and the second operating electrode pattern 244a is electrically connected to an operating voltage (e.g., 40V), the cholesteric liquid crystal panel 10A displays a second mark (AUO mark) formed by the arrangement of the second operating electrode patterns 244a.

[0078] In some embodiments, by adjusting the alignment of the cholesteric liquid crystal layer (CLC), the cholesteric liquid crystal panel 10A can be designed to be normally white driven or normally black driven.

[0079] Figure 1A The electric field E is shown when the cholesterol-type liquid crystal panel 10A displays the first mark, by Figure 1A It can be seen that by including the first common electrode pattern 142a in the first electrode layer 140, the problem of uneven electric field E distribution at the edge of the first operating electrode pattern 144a can be avoided, thereby improving the quality of the display image. Similarly, when the cholesteric liquid crystal panel 10A displays the second logo, by including the second common electrode pattern 242a in the second electrode layer 240, the problem of uneven electric field E distribution at the edge of the second operating electrode pattern 244a can be avoided, thereby improving the quality of the display image.

[0080] Figure 5 This is a top view of another first electrode layer according to an embodiment of the present invention. It should be noted here that... Figure 5 The embodiments follow Figures 1A to 1CThe component reference numerals and partial contents of the embodiments are described below, wherein the same or similar reference numerals are used to represent the same or similar components, and descriptions of the same technical content are omitted. For explanations of the omitted parts, please refer to the foregoing embodiments, and will not be repeated here.

[0081] Please refer to Figure 5 The conductive structure 144 of the first electrode layer 140 includes a plurality of first operating electrode patterns 144a, a plurality of auxiliary lines 144b, and a plurality of auxiliary lines 144c. The auxiliary lines 144c connect the plurality of first operating electrode patterns 144a. For example, the first operating electrode pattern 144a corresponding to the eyebrows of the tiger is connected via the auxiliary lines 144c to the first operating electrode pattern 144a corresponding to the hair of the tiger. The auxiliary lines 144b are used to electrically connect the plurality of first operating electrode patterns 144a arranged to form the tiger to one or more first pads (not shown).

[0082] Figure 6 This is a top view of another first electrode layer according to an embodiment of the present invention. It should be noted here that... Figure 6 The embodiments follow Figures 1A to 1C The component reference numerals and partial contents of the embodiments are described below, wherein the same or similar reference numerals are used to represent the same or similar components, and descriptions of the same technical content are omitted. For explanations of the omitted parts, please refer to the foregoing embodiments, and will not be repeated here.

[0083] Please refer to Figure 6 The conductive structure 144 includes a plurality of first operating electrode patterns 144a, a plurality of auxiliary lines 144b, and a plurality of auxiliary lines 144c. The auxiliary lines 144c connect the plurality of first operating electrode patterns 144a. For example, the first electrode layer 140 includes a plurality of first operating electrode patterns 144a with different shapes, one of which is A-shaped, another is U-shaped, and yet another is O-shaped. The three first operating electrode patterns 144a are electrically connected to each other via two auxiliary lines 144c. The first electrode layer 140 includes a plurality of first common electrode patterns 142a, and a slit st is formed between two of the first common electrode patterns 142a, surrounding a first mark (in this embodiment, an AUO mark). When the first mark formed by the arrangement of the first operating electrode patterns 144a is displayed on the cholesteric liquid crystal panel, the slit st between the two first common electrode patterns 142a allows the displayed image to have an outer frame surrounding the first mark.

[0084] Figure 7 This is a partial cross-sectional schematic diagram of a cholesteric liquid crystal panel 10B according to an embodiment of the present invention. It must be noted that... Figure 7The embodiments follow Figures 1A to 1C The component reference numerals and partial contents of the embodiments are described below, wherein the same or similar reference numerals are used to represent the same or similar components, and descriptions of the same technical content are omitted. For explanations of the omitted parts, please refer to the foregoing embodiments, and will not be repeated here.

[0085] Please refer to Figure 7 In this embodiment, the conductive layer between the insulating layer 130 and the first carrier plate 110 is patterned to include multiple auxiliary lines 120a. The first common electrode pattern 142a is electrically connected to the second pad 148 via the auxiliary lines 120a (see reference). Figure 1B ).

[0086] Figure 8 This is a partial cross-sectional schematic diagram of a cholesteric liquid crystal panel 10C according to an embodiment of the present invention. It must be noted that... Figure 8 The embodiments follow Figures 1A to 1C The component reference numerals and partial contents of the embodiments are described below, wherein the same or similar reference numerals are used to represent the same or similar components, and descriptions of the same technical content are omitted. For explanations of the omitted parts, please refer to the foregoing embodiments, and will not be repeated here.

[0087] Please refer to Figure 8 In this embodiment, the first operating electrode pattern 144a is electrically connected to the first pad 146 via the conductive layer 120 (see reference). Figure 1B The first common electrode pattern 142a is electrically connected to the second pad 148 (see reference) via other auxiliary lines (not shown). Figure 1B The aforementioned auxiliary lines belong to the first electrode layer 140.

[0088] Figure 9 This is a top view of another first electrode layer according to an embodiment of the present invention. It should be noted here that... Figure 9 The embodiments follow Figures 1A to 1C The component reference numerals and partial contents of the embodiments are described below, wherein the same or similar reference numerals are used to represent the same or similar components, and descriptions of the same technical content are omitted. For explanations of the omitted parts, please refer to the foregoing embodiments, and will not be repeated here.

[0089] Please refer to Figure 9 In this embodiment, multiple first common electrode patterns 142a are interconnected by auxiliary lines 142c and electrically connected to the second pad 148 by auxiliary lines 142b. The first common electrode patterns 142a, auxiliary lines 142b, and auxiliary lines 142c belong to the same film layer and together form a conductive structure 142. The auxiliary lines 142c cross the corresponding first operating electrode pattern 144a. The first operating electrode pattern 144a is then connected to the conductive layer 120 (see reference). Figure 8 It is electrically connected to the first pad 146.

[0090] Figure 10 This is a top view of another first electrode layer according to an embodiment of the present invention. It should be noted here that... Figure 10 The embodiments follow Figures 1A to 1C The component reference numerals and partial contents of the embodiments are described below, wherein the same or similar reference numerals are used to represent the same or similar components, and descriptions of the same technical content are omitted. For explanations of the omitted parts, please refer to the foregoing embodiments, and will not be repeated here.

[0091] Please refer to Figure 10 In this embodiment, a plurality of first operating electrode patterns 144a are arranged to form a plurality of first marks. Specifically, the plurality of first operating electrode patterns 144a are arranged to form three different forms of AUO marks. At least one first operating electrode pattern 144a corresponding to the first AUO mark is electrically connected to the first pad 146A, at least one first operating electrode pattern 144a corresponding to the second AUO mark is electrically connected to the first pad 146B, and at least one first operating electrode pattern 144a corresponding to the third AUO mark is electrically connected to the first pad 146C. Based on the foregoing, three different first marks can be displayed using a cholesteric liquid crystal panel.

[0092] Figure 11 This is a partial cross-sectional schematic diagram of a cholesteric liquid crystal panel 10D according to an embodiment of the present invention. It must be noted that... Figure 11 The embodiments follow Figures 1A to 1C The component reference numerals and partial contents of the embodiments are described below, wherein the same or similar reference numerals are used to represent the same or similar components, and descriptions of the same technical content are omitted. For explanations of the omitted parts, please refer to the foregoing embodiments, and will not be repeated here.

[0093] In this embodiment, the conductive layer between the insulating layer 130 and the first carrier plate 110 is patterned to include multiple auxiliary lines 120a and multiple auxiliary lines 120b. The first operating electrode pattern 144a is electrically connected to the first pad 146 via the auxiliary lines 120b (see reference). Figure 1B The first common electrode pattern 142a is electrically connected to the second pad 148 via auxiliary line 120a (see reference). Figure 1B The auxiliary lines 120a and 120b are located on different film layers than the first operating electrode pattern 144a and the first common electrode pattern 142a. In other words, auxiliary lines 120a and the first operating electrode pattern 144a belong to different film layers, and auxiliary lines 120b and the first common electrode pattern 142a belong to different film layers. Based on the foregoing, the influence of the auxiliary lines on the integrity of the first mark can be avoided.

[0094] In some embodiments, each first operating electrode pattern 144a includes a plurality of mutually separated block structures, and each block structure is electrically connected to a corresponding auxiliary line 120b. In some embodiments, the plurality of block structures are electrically connected to an auxiliary line 120b.

[0095] Figure 12A and Figure 12B This is a schematic diagram of an image displayed on a cholesteric liquid crystal panel according to an embodiment of the present invention. Figure 12A and Figure 12B This refers to the display of images from cholesteric LCD panels that do not include grayscale design. Figure 12A The image features a wood grain pattern. Figure 12B For the Dada tiger image, grayscale design can make the wood grain and Dada tiger images more vivid, such as... Figure 13A and Figure 13B As shown.

[0096] Figure 14 This is a cross-sectional schematic diagram of a display device according to an embodiment of the present invention. Please refer to... Figure 14 The display device includes a cholesteric liquid crystal panel 10, a liquid crystal display panel 20, and a touch module 30. The cholesteric liquid crystal panel 10 is located between the liquid crystal display panel 20 and the touch module 30. The liquid crystal display panel 20 includes, from bottom to top, a first polarizer 21, a first substrate 22, an active element layer 23, an alignment layer 24, a liquid crystal layer 25, an alignment layer 26, a light filter element 27, a second substrate 28, and a second polarizer 29. The liquid crystal layer 25 includes, for example, nematic liquid crystal, smectic liquid crystal, or other non-cholesteric liquid crystals.

[0097] In this embodiment, the cholesteric liquid crystal panel 10 can be any of the cholesteric liquid crystal panels described in the preceding embodiments, and can be used to display the first and second symbols. When the cholesteric liquid crystal panel 10 is not displaying an image, the user can see through the cholesteric liquid crystal panel 10 and view the image displayed on the liquid crystal display panel 20. In some embodiments, the back of the liquid crystal display panel 20 also includes a backlight module (not shown). In this embodiment, the cholesteric liquid crystal panel 10 is combined with the liquid crystal display panel 20, but the present invention is not limited thereto. In other embodiments, the cholesteric liquid crystal panel 10 is combined with other types of display panels, such as organic light-emitting diode display panels, micro light-emitting diode display panels, etc.

[0098] In summary, the cholesteric liquid crystal panel of the present invention includes a first electrode layer and a second electrode layer. By making the first electrode layer include a first operating electrode pattern and a first common electrode pattern, and the second electrode layer include a second operating electrode pattern and a second common electrode pattern, the electric field distribution between the first electrode layer and the second electrode layer can be improved, thereby enhancing the quality of the displayed image.

Claims

1. A cholesterol-type liquid crystal panel, comprising: A first substrate, comprising: A first carrier plate; and A first electrode layer, located on the first carrier plate, and comprising: At least one first operating electrode pattern, wherein the at least one first operating electrode pattern is arranged to form at least one first mark; and At least one first common electrode pattern; A second substrate, comprising: A second carrier plate; and A second electrode layer, located on the second carrier plate, and comprising: At least one second operating electrode pattern, wherein the at least one second operating electrode pattern is arranged to form at least one second mark; and At least one second common electrode pattern; and A cholesterol-type liquid crystal layer is located between the first substrate and the second substrate. The at least one first operating electrode pattern has two or more materials and / or two or more thicknesses.

2. The cholesterol-type liquid crystal panel of claim 1, wherein the at least one first common electrode pattern and the at least one second common electrode pattern are electrically connected to a common voltage, one of the at least one first operating electrode pattern and the at least one second operating electrode pattern is electrically connected to the common voltage, and the other of the at least one first operating electrode pattern and the at least one second operating electrode pattern is electrically connected to an operating voltage.

3. The cholesterol-type liquid crystal panel as claimed in claim 1, wherein the first electrode layer comprises a plurality of first operating electrode patterns having different shapes.

4. The cholesteric liquid crystal panel of claim 3, wherein the first operating electrode patterns and / or the at least one first common electrode pattern have a grayscale design.

5. The cholesterol-type liquid crystal panel of claim 3, wherein the first operating electrode patterns have dendritic slits, and the dendritic slits have two or more widths.

6. The cholesterol-type liquid crystal panel as described in claim 3, further comprising: At least one auxiliary line, wherein each of the first operating electrode patterns is electrically connected to the at least one auxiliary line.

7. The cholesterol-type liquid crystal panel of claim 6, wherein the at least one auxiliary line and the first operating electrode pattern belong to the same film layer.

8. The cholesterol-type liquid crystal panel of claim 6, wherein the at least one auxiliary line and the first operating electrode pattern belong to different film layers.

9. The cholesteric liquid crystal panel as claimed in claim 1, wherein the first substrate further comprises: A conductive layer is located between the first electrode layer and the first carrier plate, and overlaps the at least one first operating electrode pattern and the at least one first common electrode pattern, wherein the at least one first operating electrode pattern is electrically connected to the conductive layer.

10. The cholesterol-type liquid crystal panel of claim 1, wherein at least one of the at least one first operating electrode pattern and / or the at least one first common electrode pattern comprises a plurality of mutually separated block structures.

11. The cholesterol-type liquid crystal panel of claim 10, wherein each of the block structures is electrically connected to a corresponding auxiliary line.

12. The cholesterol-type liquid crystal panel of claim 1, wherein the at least one first operating electrode pattern surrounds a portion of the at least one first common electrode pattern, and the at least one first operating electrode pattern is surrounded by another portion of the at least one first common electrode pattern.

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