monitor
The design of a non-pixelated liquid crystal switching panel and optical film stacking solves the problem of ambient light reflection interfering with the display device, reduces moiré and color deviation in the display state, and improves the user's viewing experience.
Patent Information
- Application Number
- CN202211602632.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2022-07-29
- Filing Date
- 2022-12-13
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2042-12-13
AI Technical Summary
Ambient light reflection interferes with the display of content on a display device, and a display device with a special appearance affects the user's viewing experience when reflecting light in a display state.
A non-pixelated liquid crystal switching panel is used, which includes a substrate, a first electrode layer, an insulating layer and a second electrode layer. The second electrode layer has a curved electrode and a connecting electrode. The polarization state of light is regulated by controlling the direction of the liquid crystal molecules. Combined with an optical film stack and a polarizer, switching between the display state and the non-display state is achieved.
It reduces moiré, lowers resistance, avoids color deviation, and improves the user's viewing experience.
Smart Images

Figure CN115933258B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a display. Background Art
[0002] When ambient light enters a display device, it is often reflected by the display device. However, this phenomenon may interfere with the content displayed by the display device, which is not conducive to display. In addition, in recent years, in order to improve aesthetics or increase variability, more and more display devices have been designed with special appearance shapes. For example, in some display devices, at least one layer in the stacked structure may be provided with a pattern or texture. As mentioned above, these appearance designs may be unexpectedly perceived by the user when the display device is displaying through the reflection of ambient light, thereby deteriorating the user's viewing experience. Therefore, it is necessary to develop a display device that can reduce or avoid ambient light reflection in the display state and can normally present a preset appearance shape in the non-display state. Summary of the Invention
[0003] Some embodiments of the present invention provide a display comprising a display panel and a liquid crystal switching panel. The liquid crystal switching panel is located on the display panel, is a non-pixelated switching panel, and comprises a substrate, a first electrode layer, an insulating layer, and a second electrode layer. The first electrode layer is on the substrate. The insulating layer is on the first electrode layer. The second electrode layer is on the insulating layer. The second electrode layer comprises a plurality of curved electrodes, each of which has a first portion and a second portion extending in different directions. The first portion and the second portion are connected together by a transition portion, and the transition portion is arranged along a first direction. The curved electrode is electrically connected to a connecting electrode along a second direction, and the angle between the second direction and the first direction is an acute angle.
[0004] In some embodiments, at least one of the first portions and at least one of the second portions have an axis of symmetry extending along the first direction.
[0005] In some embodiments, the angle between the second direction and the first direction is in a range from 10 degrees to 80 degrees.
[0006] In some embodiments, the second electrode layer further includes strip electrodes connected to the turning parts.
[0007] In some embodiments, the liquid crystal switching panel further includes a metal line below the turning portion.
[0008] In some embodiments, the liquid crystal switching panel further includes a metal line below the turning portion, and the width of the metal line is smaller than the width of the strip electrodes.
[0009] In some embodiments, the display further comprises an optical film stack between the liquid crystal switching panel and the display panel.
[0010] In some embodiments, the optical film stack has a pattern thereon.
[0011] In some embodiments, the display panel includes a first panel and a second panel, and the first panel is foldable relative to the second panel.
[0012] In some embodiments, the first electrode layer includes a first area and a second area separated from each other.
[0013] In some embodiments, the second electrode layer includes a first area and a second area separated from each other.
[0014] The liquid crystal switching panels of some embodiments of the present invention can produce less moiré, have lower resistance, and have no color shift issues. Therefore, when using the display of some embodiments of the present invention, the user experience can be improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a side view of a display according to some embodiments of the present invention;
[0016] Figure 2 for Figure 1 A side view of a liquid crystal switching panel;
[0017] Figure 3A for Figure 2 A top view of the first electrode layer and the second electrode layer;
[0018] Figure 3B For other embodiments Figure 2 A top view of the first electrode layer and the second electrode layer;
[0019] Figure 4A and Figure 4B A schematic diagram showing the degree of color shift of an image displayed by a display including a liquid crystal switching panel;
[0020] Figure 5 are top views of the first electrode layer and the second electrode layer in some other embodiments;
[0021] Figure 6 is a side view of a liquid crystal switching panel according to some other embodiments;
[0022] Figure 7 is a top view of a first electrode layer, a second electrode layer, and a metal wire in some embodiments;
[0023] Figure 8 is a top view of a first electrode layer and a second electrode layer in some other embodiments;
[0024] Figure 9A and Figure 9Bare side views of displays according to other embodiments of the present invention;
[0025] Figure 10A and Figure 10B Side views of displays according to other embodiments of the present invention.
[0026] Explanation of symbols
[0027] 10: Display
[0028] 20: Display
[0029] 100: Display panel
[0030] 200: Optical film stack
[0031] 300: LCD switching panel
[0032] 300': LCD switching panel
[0033] 310: First substrate
[0034] 330: First electrode layer
[0035] 330”: First electrode layer
[0036] 330A: Block 1
[0037] 330B: Second block
[0038] 340: Insulation layer
[0039] 350: Second electrode layer
[0040] 350': Second electrode layer
[0041] 350”: Second electrode layer
[0042] 350A: Block 1
[0043] 350B: Second block
[0044] 351: Curved electrode
[0045] 351A: Curved electrode
[0046] 351B: Curved electrode
[0047] 352: Connecting electrodes
[0048] 352A: Connecting electrodes
[0049] 352B: Connecting electrodes
[0050] 354: Part 1
[0051] 356: Part 2
[0052] 357: Turning Point
[0053] 358: Strip electrodes
[0054] 360: First alignment layer
[0055] 370: Liquid crystal layer
[0056] 380: Second alignment layer
[0057] 390: Second substrate
[0058] 400: Polarizer
[0059] 500: Metal wire
[0060] 600: Display panel
[0061] 600': Display Panel
[0062] 610: First Panel
[0063] 610': First panel
[0064] 620: Second Panel
[0065] 620': Second panel
[0066] 630: Pivot
[0067] 700: Optical film stack
[0068] 700': Optical film stacking
[0069] 710: First optical film stack
[0070] 710': First optical film stack
[0071] 720: Second optical film stack
[0072] 720': Second optical film stack
[0073] 800: LCD switching panel
[0074] 800': LCD switching panel
[0075] 810: First LCD switching panel
[0076] 810': First LCD switching panel
[0077] 820: Second LCD switching panel
[0078] 820': Second LCD switching panel
[0079] 830: Pivot
[0080] 900: Polarizer
[0081] 900': Polarizer
[0082] 910: First polarizer
[0083] 910': The first polarizer
[0084] 920: Second polarizer
[0085] 920': Second polarizer
[0086] A: Point
[0087] a1: Angle
[0088] a2: Angle
[0089] a3: Angle
[0090] B: Point
[0091] D1: First direction
[0092] D2: Second direction
[0093] L1: axis of symmetry
[0094] L2: Line
[0095] SL: Slit
[0096] W1: width
[0097] W2: width
[0098] W3: Width DETAILED DESCRIPTION
[0099] To enable those skilled in the art to further understand the present invention, preferred embodiments of the present invention are listed below, and the components and intended effects of the present invention are described in detail with reference to the accompanying drawings.
[0100] Some embodiments of the present invention relate to a display including a liquid crystal switching panel. The display's display can be switched by turning the liquid crystal switching panel on or off. The liquid crystal switching panel in some embodiments of the present invention can produce less moiré, have lower resistance, and avoid color shift issues. Therefore, using displays in some embodiments of the present invention can enhance the user experience.
[0101] Figure 1A side view of a display 10 according to some embodiments of the present invention is shown. The display 10 includes a display panel 100, an optical film stack 200, a liquid crystal switching panel 300, and a polarizer 400. The liquid crystal switching panel 300 is positioned on the display panel 100. In some embodiments, the liquid crystal switching panel 300 may be a non-pixelated switching panel, meaning that the liquid crystal switching panel 300 switches between display and non-display on a pixel-by-pixel basis. A single switching unit of the liquid crystal switching panel 300 (depending on the requirements) may be the entire display surface of the liquid crystal switching panel 300 or a region larger than a single pixel. The optical film stack 200 is positioned between the liquid crystal switching panel 300 and the display panel 100. The polarizer 400 is positioned on the liquid crystal switching panel 300. In other words, the display panel 100, the optical film stack 200, the liquid crystal switching panel 300, and the polarizer 400 are stacked from bottom to top.
[0102] The display panel 100 may be any panel that can emit display light or allow display light to pass through, such as but not limited to a liquid crystal display panel, an organic light emitting display panel, an electroluminescent display panel, etc. The panel may include a polarizer to polarize the display light.
[0103] The optical film stack 200 is disposed on the display panel 100 and has a decorative pattern thereon. The optical film stack 200 may include a phase retarder layer, a polymer cholesterol material layer, and / or other suitable layers. In some embodiments, the decorative pattern of the optical film stack 200 is disposed on one of the layers, such as the polymer cholesterol material layer, and may be a keyboard pattern, wood grain, or other suitable pattern.
[0104] The liquid crystal switching panel 300 is located on the optical film stack 200. The liquid crystal switching panel 300 can be a non-pixelated advanced hyper viewing angle (AHVA) panel, thus eliminating pixel units for providing different color light. Furthermore, using an AHVA panel as the liquid crystal switching panel 300 ensures that the display 10 exhibits no color shift when viewed from any viewing angle. By combining the liquid crystal arrangement in the liquid crystal switching panel 300 with the polarizer 400 above, the liquid crystal switching panel 300 can be used to switch the display 10 between a display state and a non-display state. The displayed pattern of the display 10 may vary depending on the state. For example, when the display 10 is in the non-display state, the display 10 directly reflects the pattern on the optical film stack 200, resulting in the display pattern being the decorative pattern on the optical film stack 200. When the display 10 is in the display state, the decorative pattern on the optical film stack 200 is not reflected, resulting in the displayed pattern being the pattern displayed by the display panel 100. The state of the liquid crystal switching panel 300 can be switched by turning on or off the circuit in the liquid crystal switching panel 300. In some embodiments, the polarizer 400 is substantially perpendicular to the polarizer (not shown) on the display panel 100.
[0105] Figure 2 Draw Figure 1 is a side cross-sectional view of a liquid crystal switching panel 300. The liquid crystal switching panel 300 includes a first substrate 310, a first electrode layer 330, an insulating layer 340, and a second electrode layer 350. The first electrode layer 330 is on the first substrate 310. The insulating layer 340 is on the first electrode layer 330. The second electrode layer 350 is on the insulating layer 340.
[0106] The first substrate 310 can be any suitable substrate, such as, but not limited to, a glass substrate. A first electrode layer 330 is formed on the first substrate 310. In some embodiments, the first electrode layer 330 is a solid electrode. That is, the first electrode layer 330 does not have any slits or openings. A second electrode layer 350 is formed on the first electrode layer 330. The first electrode layer 330 can be connected to a first potential, and the second electrode layer 350 can be connected to a second potential, such that a potential difference exists between the first electrode layer 330 and the second electrode layer 350 to control the orientation of liquid crystal molecules in the upper liquid crystal layer, thereby regulating the polarization state of external ambient light. In some embodiments, the first and second potentials can be provided by components on a flexible printed circuit board. That is, the first and second electrode layers 330 and 350 can be connected to the first and second potentials provided by the flexible printed circuit board, respectively. The first and second electrode layers 330 and 350 can be made of similar or identical materials, such as, but not limited to, indium tin oxide (ITO). The first electrode layer 330 differs from the second electrode layer 350 in that the second electrode layer 350 has a slit and the shape of the second electrode layer 350 will be described in detail later. The insulating layer 340 is between the first electrode layer 330 and the second electrode layer 350 and prevents a short circuit between the first electrode layer 330 and the second electrode layer 350.
[0107] Figure 3A Draw Figure 2 A partial top view of the first electrode layer 330 and the second electrode layer 350. It should be noted that Figure 3A In the embodiment, the insulating layer 340 is omitted. The second electrode layer 350 includes a plurality of curved electrodes 351 and a connecting electrode 352. In this embodiment, the ends of all curved electrodes 351 can be connected to the connecting electrode 352. The first electrode layer 330 can be further connected to a first potential, and the connecting electrode 352 can be further connected to a second potential. A slit SL is defined between each adjacent curved electrode 351. In some embodiments, the width W1 of the curved electrode 351 is in the range of 3 microns to 6 microns.
[0108] Each curved electrode 351 has a first portion 354 and a second portion 356 extending in different directions. The first and second portions 354, 356 are connected by a transition portion 357, which is aligned along the first direction D1. In this embodiment, at least one of the first portion 354 and at least one of the second portion 356 has an axis of symmetry L1 extending along the first direction D1. In other words, the first and second portions 354, 356 are symmetrical along the axis of symmetry L1, and the transition portion 357 is located on the axis of symmetry L1. In some embodiments, the first and second portions 354, 356 of the curved electrode 351 are defined as the electrode portion between one transition portion 357 and the next. Therefore, the first portion 354 extends substantially only in one direction, and the second portion 356 also extends substantially only in one direction. However, this is not limiting. In other embodiments, the first and second portions 354, 356 of the curved electrode 351 can be defined as the electrode portion between one transition portion 357 and the next transition portion 357. At least a portion of the first portion 354 and at least a portion of the second portion 356 are symmetrical to each other along the symmetry axis L1.
[0109] The curved electrode 351 is electrically connected to the connecting electrode 352 extending along the second direction D2, and the angle a3 between the second direction D2 and the first direction D1 is an acute angle. In some embodiments, the angle a3 between the second direction D2 and the first direction D1 is in a range of 10 degrees to 80 degrees. When the angle a3 between the second direction D2 and the first direction D1 is within this range, moiré patterns on the display 10 can be effectively eliminated, significantly improving the user's viewing experience of the display 10. In addition, in some embodiments, the angle a1 between the first portion 354 and the line L2 is in a range of 84 degrees to 86 degrees, and the angle a2 between the second portion 356 and the line L2 is in a range of 84 degrees to 86 degrees, and the line L2 is parallel to the second direction D2.
[0110] In addition, Figure 3A In the embodiment, the connecting electrode 352 extends along the second direction D2. Therefore, the turning portions 357 of different curved electrodes 351, which are closest to the connecting electrode 352, are at different distances from the connecting electrode 352. In other words, the second portions 356 (or first portions 354 in other embodiments) of different curved electrodes 351 that contact the connecting electrode 352 have different lengths.
[0111] Figure 3B Draw Figure 2 A top view of the first electrode layer 330 and the second electrode layer 350 in some other embodiments. Figure 3B In the embodiment, the insulating layer 340 is omitted. Figure 3B The second electrode layer 350 and Figure 3AThe difference between the two is that Figure 3A In FIG, each curved electrode 351 includes a complete first portion 354 and a complete second portion 356. Figure 3B In the embodiment, each of the curved electrodes 351 includes a plurality of complete first portions 354 and a plurality of complete second portions 356 .
[0112] Figure 4A and Figure 4B The color deviation of the image displayed by the display 10 including the liquid crystal switching panel 300 is shown. Figure 4A In FIG, point A and multiple points B are plotted on a chromaticity diagram with standardized x and y axes. Point A represents the color observed by the user when looking directly at the display 10. Point B represents the color observed by the user when viewing the display 10 from different viewing directions when the absolute value of the user's viewing angle is fixed. For example, point B may represent the color observed by the user at a viewing angle of 60 degrees and viewing directions ranging from 0 degrees to 360 degrees. The color difference between point B and point A can be calculated and plotted on Figure 4B In. Figure 4B In any viewing direction, the color difference observed by the user is very small. Therefore, the user can have a good viewing experience when viewing images using the display 10.
[0113] Figure 5 The top view of the first electrode layer 330 and the second electrode layer 350' in some other embodiments is shown. Figure 3A The second electrode layer 350 is similar to the second electrode layer 350 . The difference is that the second electrode layer 350 ′ further includes strip electrodes 358 , which connect the turning portions 357 . Specifically, the strip electrodes 358 connect the turning portions 357 of adjacent curved electrodes 351 and extend along the first direction D1. In this embodiment, at least some of the ends of the curved electrodes 351 are electrically connected to the connecting electrode 352 , and the strip electrodes 358 are not parallel to the connecting electrode 352 . The inclusion of strip electrodes 358 in the second electrode layer 350 ′ increases the structural strength of the curved electrodes 351 in the second electrode layer 350 ′, making them less susceptible to breakage. This can alleviate the problem of disconnection in the second electrode layer 350 ′. Furthermore, if the liquid crystal switching panel 300 is a large-sized panel, the strip electrodes 358 can also reduce the overall resistance of the second electrode layer 350 ′. In some embodiments, the width W2 of the strip electrodes 358 is within a range of 3 microns to 9 microns.
[0114] Back to Figure 2The liquid crystal switching panel 300 further includes a first alignment layer 360, a liquid crystal layer 370, a second alignment layer 380, and a second substrate 390. The first alignment layer 360 is on the second electrode layer 350. The liquid crystal layer 370 is on the first alignment layer 360. The second alignment layer 380 is on the liquid crystal layer 370. The second substrate 390 is on the second alignment layer 380. In some embodiments, the second substrate 390 is any suitable substrate, such as, but not limited to, a glass substrate.
[0115] The first alignment layer 360 and the second alignment layer 380 are respectively located below and above the liquid crystal layer 370, and can be used to provide a pre-tilt angle and an alignment direction of the liquid crystal molecules in the liquid crystal layer 370. In some embodiments, the alignment directions of the first alignment layer 360 and the second alignment layer 380 are, for example but not limited to, 0 or 180 degrees apart. The direction of the liquid crystal molecules in the liquid crystal layer 370 can change with the state of the liquid crystal switching panel 300 (i.e., whether the first electrode layer 330 and the second electrode layer 350 are powered on). Therefore, the direction of the liquid crystal molecules can determine the optical film stack 200 ( Figure 1 ) can be displayed on the display 10. For example, when a first potential is applied to the first electrode layer 330 and a second potential is applied to the second electrode layer 350, the liquid crystal layer 370 changes the polarization state of external ambient light to reduce reflection from the optical film stack 200 and allow display light from the display panel 100 to pass through, allowing the user to view the display content of the display panel. On the other hand, when the first potential is not applied to the first electrode layer 330 and the second potential is not applied to the second electrode layer 350, the decorative pattern of the optical film stack 200 is revealed by reflection from external ambient light, and the display panel 100 stops providing display light, allowing the user to view the decorative pattern of the optical film stack 200.
[0116] Figure 6 A side cross-sectional view of a liquid crystal switching panel 300 ′ according to another embodiment is shown. The liquid crystal switching panel 300 ′ is similar in details to the liquid crystal switching panel 300 , except that the liquid crystal switching panel 300 ′ further includes metal lines 500 . Figure 7A top view of the first electrode layer 330, the second electrode layer 350' and the metal wire 500 is shown. The metal wire 500 is under the turning portion 357 and is electrically connected to the second electrode layer 350'. Specifically, in some embodiments, the metal wire 500 may be disposed under the strip electrode 358 connected to the turning portion 357 of the second electrode layer 350', and the metal wire 500 overlaps the strip electrode 358. The width W3 of the metal wire 500 may be smaller than the width W2 of the strip electrode 358. In some embodiments, the width W3 of the metal wire 500 is in a range between 2 microns and 6 microns. When such a configuration is provided, the resistance of the second electrode layer 350' can be further reduced. In other embodiments, the metal wire 500 and the strip electrode 358 do not need to exist in the second electrode layer 350' at the same time. For example, the metal wire 500 may also be formed in the second electrode layer 350 ( Figure 3A ) is below the turning portion 357 and is electrically connected to the second electrode layer 350, and the metal line 500 extends along the first direction D1.
[0117] Figure 8 The top view of the first electrode layer 330" and the second electrode layer 350" in other embodiments is shown. The first electrode layer 330" and the second electrode layer 350" are respectively Figure 3AThe first electrode layer 330 and the second electrode layer 350 are similar, except that the first electrode layer 330″ and the second electrode layer 350″ are divided into multiple blocks, while the first electrode layer 330 and the second electrode layer 350 are each complete electrode layers. Specifically, the first electrode layer 330″ includes a separate first block 330A and a separate second block 330B. The second electrode layer 350″ includes a separate first block 350A and a separate second block 350B, and the ends of the curved electrodes 351A in the first block 350A are connected to the connecting electrode 352A, and the ends of the curved electrodes 351B in the second block 350B are connected to the connecting electrode 352B. The first block 330A and the first block 350A can be connected to a first circuit, while the second block 330B and the second block 350B can be connected to a second circuit. Therefore, the first block 330A and the first block 350A, and the second block 330B and the second block 350B can be controlled separately. In other words, the state of the display 10 corresponding to the first block 330A and the first block 350A can differ from the state of the display 10 corresponding to the second block 330B and the second block 350B. For example, the first block 330A and the first block 350A cause the liquid crystal switching panel to be in a display state, while the second block 330B and the second block 350B cause the liquid crystal switching panel to be in a non-display state. Therefore, the portion of the display 10 corresponding to the first block 350A can display the image presented by the display panel 100, while the portion of the display 10 corresponding to the second block 350B can display the decorative pattern of the optical film stack 200. In some embodiments, the first electrode layer 330" and the second electrode layer 350" are not limited to being divided into two blocks. For example, the first electrode layer 330" and the second electrode layer 350" can each be divided into four blocks.
[0118] Figure 9A and Figure 9B FIG2 shows a side view of a display 20 according to some other embodiments of the present invention. The display 20 is a foldable display. Figure 9A The display 20 is shown before being folded. Figure 9BThe display 20 is shown folded. Specifically, the display 20 includes a display panel 600, an optical film stack 700, a liquid crystal switching panel 800, and a polarizer 900. The display panel 600, the optical film stack 700, the liquid crystal switching panel 800, and the polarizer 900 are stacked in this order. The display panel 600 includes a first panel 610 and a second panel 620. The optical film stack 700 includes a first optical film stack 710 and a second optical film stack 720. The first optical film stack 710 contacts the first panel 610, while the second optical film stack 720 contacts the second panel 620. The liquid crystal switching panel 800 includes a first liquid crystal switching panel 810 and a second liquid crystal switching panel 820. The first liquid crystal switching panel 810 contacts the first optical film stack 710, while the second liquid crystal switching panel 820 contacts the second optical film stack 720. The polarizer 900 includes a first polarizer 910 and a second polarizer 920. The first polarizer 910 contacts the first liquid crystal switching panel 810 , and the second polarizer 920 contacts the second liquid crystal switching panel 820 .
[0119] The first panel 610 is foldable relative to the second panel 620, wherein the first panel 610 and the second panel 620 may be different parts of the same display panel 600, but are not limited thereto. Furthermore, the first optical film stack 710 is foldable relative to the second optical film stack 720, wherein the first optical film stack 710 and the second optical film stack 720 may be different parts of the same optical film stack 700, but are not limited thereto. The first liquid crystal switching panel 810 is foldable relative to the second liquid crystal switching panel 820, wherein the first liquid crystal switching panel 810 and the second liquid crystal switching panel 820 may be different parts of the same liquid crystal switching panel 800, but are not limited thereto. The first polarizer 910 is foldable relative to the second polarizer 920, wherein the first polarizer 910 and the second polarizer 920 may be different parts of the same polarizer 900, but are not limited thereto. Therefore, when the display 20 is folded, the display panel 600, the optical film stack 700, the liquid crystal switching panel 800, and the polarizer 900 are all folded accordingly. The first liquid crystal switching panel 810 and the second liquid crystal switching panel 820 may be controlled by different circuits. For example, the first liquid crystal switching panel 810 is connected to a first circuit board, and the second liquid crystal switching panel 820 is connected to a second circuit board.
[0120] When the display 20 is in the unfolded state, as shown in FIG. Figure 9AAs shown, the first liquid crystal switching panel 810 and the second liquid crystal switching panel 820 can be switched into a display state. In this state, the first liquid crystal switching panel 810 can be used to display the image content of the first panel 610 behind it, and the second liquid crystal switching panel 820 can be used to display the image content of the second panel 620 behind it. The image content of the first panel 610 and the image content of the second panel 620 can be a continuous image. That is, the first panel 610 provides the upper portion of the image, and the second panel 620 provides the lower portion of the image. In this state, the notebook computer with display 20 can be used as a tablet computer.
[0121] When the display 20 is in the folded state, Figure 9B As shown, the first liquid crystal switching panel 810 is switched to a display state, while the second liquid crystal switching panel 820 is switched to a non-display state. At this point, the first liquid crystal switching panel 810 can be used to display the image content of the first panel 610 behind it, while the second liquid crystal switching panel 820 can be used to display the decorative pattern of the second optical film stack 720 below, such as a keyboard pattern. In this state, the notebook computer with the display 20 can be used as a notebook computer.
[0122] When the display 20 is in the folded state, Figure 9B As shown, both the first and second liquid crystal switching panels 810 and 820 can be switched to a display state. In this case, the first liquid crystal switching panel 810 can be used to display the image content of the first panel 610 behind it, while the second liquid crystal switching panel 820 can be used to display the image content of the second panel 620 below it. The image content of the first panel 610 and the image content of the second panel 620 can be a continuous image. That is, the first panel 610 provides the upper portion of the image, and the second panel 620 provides the lower portion of the image.
[0123] Other relevant details of the display panel 600, optical film stack 700, liquid crystal switching panel 800 and polarizer 900 are similar to those of the display panel 100, optical film stack 200, liquid crystal switching panel 300 and polarizer 400, so the relevant details are not repeated here.
[0124] Figure 10A and Figure 10B Side views of displays 20 ′ according to some other embodiments of the present invention are shown. Figure 10A The display 20 ′ is shown before being folded. Figure 10BThe display 20' is shown folded. Display 20 includes a display panel 600', an optical film stack 700', a liquid crystal switching panel 800', and a polarizer 900'. Display panel 600' includes a first panel 610' and a second panel 620'. Optical film stack 700' includes a first optical film stack 710' and a second optical film stack 720'. Liquid crystal switching panel 800' includes a first liquid crystal switching panel 810' and a second liquid crystal switching panel 820'. Polarizer 900' includes a first polarizer 910' and a second polarizer 920'. Display 20' is similar to display 20, except that the first panel 610' and the second panel 620' are different panels. The first optical film stack 710' and the second optical film stack 720' are different optical film stacks. The first liquid crystal switching panel 810 ′ and the second liquid crystal switching panel 820 ′ are different liquid crystal switching panels, and the first polarizer 910 ′ and the second polarizer 920 ′ are different polarizers.
[0125] The display panel 600' further includes a hinge portion 630 connecting the first panel 610' and the second panel 620'. The hinge portion 630 may include a circuit, so that when the display 20' is folded, the first panel 610' and the second panel 620' of the display 20' can also operate simultaneously. The liquid crystal switching panel 800' may also include a hinge portion 830. The hinge portion 830 may include a circuit, so that when the display 20' is folded, Figure 10B As shown, the states of the first liquid crystal switching panel 810' and the second liquid crystal switching panel 820' (e.g., display state or non-display state) can also be controlled separately. Other relevant details of the display panel 600', the optical film stack 700', the liquid crystal switching panel 800', and the polarizer 900' are similar to those of the display panel 600, the optical film stack 700, the liquid crystal switching panel 800, and the polarizer 900, respectively, and therefore the relevant details are not repeated here.
[0126] In summary, some embodiments of the present invention do not have color shift issues. Furthermore, some embodiments of the present invention also include a display with a liquid crystal switching panel having a second electrode layer having a specific shape, which reduces moiré patterns in the display and lowers the resistance of the second electrode layer.
[0127] Although the present invention is disclosed in conjunction with the above embodiments, they are not intended to limit the present invention. Any ordinary technician in the technical field may make slight changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the definition of the attached claims.
Claims
1. A display comprising: display panel; and A liquid crystal switching panel is located on the display panel, and the liquid crystal switching panel includes: substrate; a first electrode layer on the substrate; an insulating layer on the first electrode layer; a second electrode layer on the insulating layer, wherein the second electrode layer comprises a plurality of curved electrodes, each of the curved electrodes having a first portion and a second portion extending in different directions, the first portion and the second portion being connected together by a turning portion, the turning portions being arranged along a first direction, the curved electrodes being electrically connected to connecting electrodes along a second direction, and the angle between the second direction and the first direction being an acute angle, Different curved electrodes have turning portions that are closest to the connecting electrode, and the turning portions that are closest to the connecting electrode are at different distances from each other. 2 . The display as claimed in claim 1 , wherein at least one of the first portions and at least one of the second portions have an axis of symmetry extending along the first direction. 3 . The display as claimed in claim 1 , wherein the included angle between the second direction and the first direction is in a range from 10 degrees to 80 degrees. 4 . The display as claimed in claim 1 , wherein the second electrode layer further comprises strip electrodes connecting the turning portions. 5 . The display as claimed in claim 1 , wherein the liquid crystal switching panel further comprises metal wires electrically connected to the turning portions. 6 . The display according to claim 5 , wherein the second electrode layer further comprises strip electrodes connecting the turning portions, and a width of the metal line is smaller than a width of the strip electrodes.
7. The display according to claim 1, further comprising: An optical film stack is provided between the liquid crystal switching panel and the display panel. The display according to claim 7 , wherein the optical film stack has a decorative pattern thereon. 9 . The display as claimed in claim 1 , wherein the display panel comprises a first panel and a second panel, and the first panel is foldable relative to the second panel. 10 . The display as claimed in claim 1 , wherein the first electrode layer comprises a first block and a second block separated from each other. The display according to claim 1 , wherein the second electrode layer comprises a first block and a second block separated from each other.
Citation Information
Patent Citations
Liquid crystal driving electrode, liquid crystal display device, and manufacturing method thereof
CN102662279A
Array substrate, display panel and display device
CN104765205A
Display panel with switchable wide and narrow visual angles, driving method and display device
CN114660841A