Display device

Abstract

This disclosure provides a display device including a display panel, a first polarizing plate, and a viewing angle control panel. The display panel includes data lines, scan lines, and a first electrode. The data lines extend along a first direction. The scan lines intersect with the data lines and extend along a second direction. The first electrode has a plurality of fingers arranged along the first direction. The first polarizing plate is disposed on a surface opposite to the light-emitting surface of the display panel and has a first absorption axis parallel to the first direction. The viewing angle control panel is superimposed on the display panel.

Description

[Technical Field]

[0001] This disclosure relates to a display device, and more particularly to a display device for use in automotive displays. [Previous Technology]

[0002] When display devices are used in privacy electronic products, there is a requirement for extended privacy viewing angles in terms of specifications. For example, the privacy viewing angle requirement for automotive display screens is approximately 30° to approximately 60°. However, existing privacy designs for automotive displays have poor privacy capabilities at relatively small viewing angles (e.g., less than 45°). [Summary of the Invention]

[0003] This disclosure provides a display device that has relatively good privacy protection at small viewing angles.

[0004] A display device according to some embodiments of the present disclosure includes a display panel and a viewing angle control panel. The display panel includes a light-shielding layer having a plurality of opening areas. At least one of the plurality of opening areas has two first edges, the two first edges corresponding to each other and extending along a first direction. The viewing angle control panel overlaps the display panel and has a liquid crystal pointing direction. The angle between the liquid crystal pointing direction and the first direction is between -25° and 25° or between 155° and 205°. One of the two first edges has a first length, the distance between the two first edges is a first distance, and the first length is less than the first distance.

[0005] A display device according to some other embodiments of the present disclosure includes a display panel, a first polarizing plate, and a viewing angle control panel. The display panel includes data lines, scan lines, and a first electrode. The data lines extend along a first direction. The scan lines intersect with the data lines and extend along a second direction. The first electrode has a plurality of fingers, and the plurality of fingers are arranged along the first direction. The first polarizing plate is disposed on a surface opposite to the light-emitting surface of the display panel and has a first absorption axis, wherein the first absorption axis is parallel to the first direction. The viewing angle control panel overlaps the display panel.

[0006] To make the above-mentioned features and advantages disclosed herein more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings.

Implementation Method

[0008] Exemplary embodiments of the invention will now be described in detail with reference to the accompanying drawings. Wherever possible, the same element references are used in the drawings and description to denote the same or similar parts.

[0009] This disclosure can be understood by referring to the following detailed description and the accompanying drawings. It should be noted that, for ease of understanding and for the sake of brevity, many of the drawings in this disclosure depict only a portion of the electronic device, and certain components in the drawings are not drawn to scale. Furthermore, the number and size of the components in the drawings are for illustrative purposes only and are not intended to limit the scope of this disclosure.

[0010] Certain terms are used throughout this disclosure and in the appended claims to refer to specific elements. Those skilled in the art will understand that electronic device manufacturers may use different names to refer to the same element. This document is not intended to distinguish between elements that have the same function but different names. In the following description and claims, words such as “comprising,” “containing,” and “having” are open-ended terms and should therefore be interpreted as “containing but not limited to…”. Therefore, when the terms “comprising,” “containing,” and / or “having” are used in the description of this disclosure, they specify the presence of the corresponding feature, area, step, operation, and / or component, but do not exclude the presence of one or more of the corresponding feature, area, step, operation, and / or component.

[0011] The directional terms used herein, such as "up," "down," "front," "back," "left," and "right," are only for reference to the accompanying drawings. Therefore, the directional terms used are for illustrative purposes and not for limiting this disclosure. In the accompanying drawings, each figure illustrates general features of the methods, structures, and / or materials used in specific embodiments. However, these figures should not be construed as defining or limiting the scope or nature covered by these embodiments. For example, for clarity, the relative dimensions, thicknesses, and locations of various films, regions, and / or structures may be reduced or enlarged.

[0012] When a corresponding component (e.g., a membrane or region) is referred to as "on another component," it can be directly on the other component, or there may be other components between them. On the other hand, when a component is referred to as "directly on another component," there are no components between them. Furthermore, when a component is referred to as "on another component," the two are vertically related in the planar view, and this component can be above or below the other component, depending on the orientation of the device.

[0013] The terms “equal to” or “same as”, “substantially” or “approximately” are generally interpreted as being within 20% of a given value or range, or as being within 10%, 5%, 3%, 2%, 1% or 0.5% of a given value or range.

[0014] The ordinal numbers used in the specification and claims, such as "first" and "second," to modify elements do not inherently imply or represent any prior ordinal number for that element (or those elements), nor do they represent the order of one element with another, or the order of manufacturing processes. The use of these ordinal numbers is solely to clearly distinguish one named element from another with the same name. The claims and specification may not use the same terminology; therefore, a first component in the specification may be a second component in the claims.

[0015] It should be understood that the features in the following embodiments can be replaced, reorganized, or mixed to complete other embodiments without departing from the spirit of this disclosure. Features between embodiments can be arbitrarily mixed and combined as long as they do not violate the spirit of the invention or conflict with it.

[0016] The electrical connection or coupling described in this disclosure can refer to a direct connection or an indirect connection. In the case of a direct connection, the endpoints of the two circuit components are directly connected or connected to each other by a conductor segment. In the case of an indirect connection, there is a switch, diode, capacitor, inductor, other suitable component, or combination of the above components between the endpoints of the two circuit components, but not limited thereto.

[0017] In this disclosure, the thickness, length, width, and area can be measured using an optical microscope, and the thickness can be measured from a cross-sectional image in an electron microscope, but is not limited thereto. Furthermore, any two values ​​or directions used for comparison may have a certain degree of error. If the first value equals the second value, it implies an error of approximately 10% between the first and second values; if the first direction is perpendicular to the second direction, the angle between the first and second directions may be between 80° and 100°; if the first direction is parallel to the second direction, the angle between the first and second directions may be between 0° and 10°.

[0018] The display device disclosed herein can be a non-self-emissive display device or a self-emissive display device, and can be a double-sided display device. The display device may include, for example, diodes, liquid crystals, light-emitting diodes (LEDs), quantum dots (QDs), fluorescence, phosphorescence, other suitable display media, or combinations thereof. Light-emitting diodes may include, for example, organic light-emitting diodes (OLEDs), micro-LEDs, mini-LEDs, sub-millimeter light-emitting diodes (mini-LEDs), or quantum dot light-emitting diodes (QDLEDs), but are not limited thereto. It should be noted that the display device can be any arrangement or combination of the foregoing, but is not limited thereto. Furthermore, the shape of the display device can be rectangular, circular, polygonal, with curved edges, or other suitable shapes. The display device may have peripheral systems such as a driving system, a control system, and a light source system.

[0019] FIG1 is a three-dimensional exploded view of the display device according to the first embodiment of the present disclosure. The region R of the display panel 100 can be referred to in the enlarged view of FIG3A to FIG3C and FIG7, which will not be described in detail here.

[0020] Referring to FIG1, the display device 10a of this embodiment includes a display panel 100 and a viewing angle control panel 200. The display panel 100 emits light, for example, in the Z direction to display an image. The viewing angle control panel 200 is, for example, superimposed on the display panel 100 and can be configured to have one or more viewing angle control panels. In this embodiment, two viewing angle control panels (i.e., the first viewing angle control panel 210 and the second viewing angle control panel 220 in FIG1) are used as an example, wherein the first viewing angle control panel 210 is disposed between the display panel 100 and the second viewing angle control panel 220 in the Z direction, but this disclosure is not limited thereto. The display panel 100 may be, for example, a self-emissive display panel or a non-self-emissive display panel, and this disclosure is not limited thereto. In this embodiment, the display panel 100 and the viewing angle control panel 200 each include different liquid crystal display panels.

[0021] Please continue to refer to FIG1. ​​In this embodiment, the display device 10a may further include a polarizing plate 300. The polarizing plate 300 includes, for example, a first polarizing plate 310, a second polarizing plate 320, a third polarizing plate 330, and a fourth polarizing plate 340.

[0022] The first polarizing plate 310 is disposed, for example, on the light-emitting surface of the display panel 100. In some embodiments, the first polarizing plate 310 may include a reflective polarizing plate or an absorptive polarizing plate. The first polarizing plate 310 may, for example, have a sandwich structure or a stacked structure. For example, the first polarizing plate 310 may have a polarizer (not shown) and a protective layer (not shown) disposed on the opposite surface of the polarizer, but this disclosure is not limited thereto. The polarizer is, for example, a thin film with properties such as light transmission and light deflection, and the protective layer is, for example, used to support and protect the polarizer to increase the mechanical strength of the first polarizing plate 310. In some embodiments, the material of the polarizer may include polyvinyl alcohol (PVA), and the material of the protective layer may include tri-acetyl cellulose (TAC), polymethyl methacrylate (acrylic), or polyethylene terephthalate, but this disclosure is not limited thereto. In this embodiment, the absorption axis 310A of the first polarizing plate 310 is parallel to the direction X, but this disclosure is not limited thereto.

[0023] The second polarizing plate 320 is disposed, for example, on the surface of the display panel 100 opposite to the light-emitting surface. In other words, the second polarizing plate 320 and the first polarizing plate 310 are disposed, for example, on opposite surfaces of the display panel 100.

[0024] The third polarizing plate 330 is disposed, for example, on the surface of the first-view control panel 210 away from the display panel 100. In other words, the first-view control panel 210 is disposed, for example, between the third polarizing plate 330 and the display panel 100.

[0025] The fourth polarizing plate 340 is disposed, for example, on the surface of the second-view control panel 220 away from the display panel 100. In other words, the second-view control panel 220 is disposed, for example, between the fourth polarizing plate 340 and the display panel 100.

[0026] The structure and materials of the second polarizing plate 320, the third polarizing plate 330 and the fourth polarizing plate 340 may be the same as or similar to the structure and materials of the first polarizing plate 310, and will not be described in detail here.

[0027] In this disclosure, polarizing plates located on opposite sides (or opposite surfaces) of the display panel have absorption axes perpendicular to each other, and polarizing plates located on the same side (or the same surface) of the display panel have absorption axes parallel to each other. In this embodiment, since the first polarizing plate 310 is located on the light-emitting surface of the display panel, and the second polarizing plate 320, the third polarizing plate 330, and the fourth polarizing plate 340 are located on the surfaces of the display panel opposite to the light-emitting surface, the absorption axis 310A of the first polarizing plate 310 is perpendicular to the absorption axes 320A of the second polarizing plate 320, the third polarizing plate 330, and the fourth polarizing plate 340, and the absorption axes 320A of the second polarizing plate 320, the third polarizing plate 330, and the fourth polarizing plate 340 are parallel to each other. In this embodiment, the absorption axis 320A of the second polarizing plate 320, the absorption axis 330A of the third polarizing plate 330, and the absorption axis 340A of the fourth polarizing plate 340 are parallel to the direction Y, but this disclosure is not limited thereto.

[0028] In this embodiment, when the display panel 100 and the viewing angle control panel 200 are non-self-emissive display panels, the display device 10a may further include a backlight module (not shown). The backlight module is disposed on the side of the display panel 100 opposite to the light-emitting surface. More specifically, the first polarizing plate 310, the display panel 100, the second polarizing plate 320, the first viewing angle control panel 210, the third polarizing plate 330, the second viewing angle control panel 220, and the fourth polarizing plate 340 are all disposed on the backlight module. In this embodiment, the backlight module is disposed on the surface of the fourth polarizing plate 340 away from the second viewing angle control panel 220, but this disclosure is not limited thereto. For a related description of the backlight module, please refer to FIG8.

[0029] Furthermore, when the display panel 100 is a non-self-emissive display panel, the display panel 100 and the viewing angle control panel 200 may, for example, have different phase delays. Specifically, the liquid crystal layer (not shown) of the display panel 100 has a first liquid crystal birefringence difference and a first liquid crystal cell gap, and the liquid crystal layer (not shown) of the viewing angle control panel 200 has a second liquid crystal birefringence difference and a second liquid crystal cell gap, wherein the product of the first liquid crystal birefringence difference and the first liquid crystal cell gap is different from the product of the second liquid crystal birefringence difference and the second liquid crystal cell gap. In some embodiments, the phase delay of the display panel 100 is less than the phase delay of the viewing angle control panel 200, but this disclosure is not limited thereto.

[0030] In this embodiment, the viewing angle control panel 200 has a liquid crystal pointing direction 200D, wherein the angle θ between the liquid crystal pointing direction 200D and the direction Y is between -25° (calculated from the direction Y rotating clockwise to the liquid crystal pointing direction 200D) and 25° (calculated from the direction Y rotating counterclockwise to the liquid crystal pointing direction 200D) (i.e., -25°≦θ≦25°) or 155° (calculated from the direction Y rotating counterclockwise to the liquid crystal pointing direction 200D) and 205° (calculated from the direction Y rotating counterclockwise to the liquid crystal pointing direction 200D) (i.e., 155°≦θ≦205°). It should be understood that in this disclosure, the angle of rotation along the clockwise direction is a negative value, while the angle of rotation along the counterclockwise direction is a positive value. For example, the sign of the angle θ between the liquid crystal pointing direction 200D and the direction Y is based on the direction Y. When the direction Y rotates clockwise to the liquid crystal pointing direction 200D, the angle θ is negative; conversely, when the direction Y rotates counterclockwise to the liquid crystal pointing direction 200D, the angle θ is positive. In this disclosure, the applicable range of the angle θ may vary depending on the type of liquid crystal. For example, when the viewing angle control panel 200 adopts a vertical alignment (VA) type, the angle θ is between -25° and 25° or 155° and 205°, while when the viewing angle control panel 200 adopts an electrically controlled birefringence (ECB) liquid crystal architecture, the angle θ is between -15° and 15° or 165° and 195°, but is not limited to these.

[0031] In detail, the viewing angle control panel 200 may be, for example, an electrically controlled viewing angle control liquid crystal panel. For instance, the structure of the viewing angle control panel 200 may include an active element array substrate (not shown), another substrate (not shown), a liquid crystal layer (not shown) disposed between the active element array substrate and the other substrate, two transparent electrode layers (not shown) disposed on both sides of the liquid crystal layer, a first alignment layer (not shown) and a second alignment layer (not shown) each disposed between the liquid crystal layer and the two transparent electrode layers, wherein the first alignment layer is relatively close to the active element array substrate, and the second alignment layer is relatively close to the other substrate. In this embodiment, the two transparent electrode layers disposed on both sides of the liquid crystal layer are surface-mount electrodes. By changing the voltage between the two transparent electrode layers, the transmittance of light in the liquid crystal layer can be adjusted, thereby enabling the viewing angle control panel 200 to have a viewing angle switching effect. Based on this, the viewing angle control panel 200 can be controlled by providing electrical signals to allow the display device 10a to switch between a share mode and a privacy mode. In this embodiment, the display device 10a can provide a switching effect between share mode and privacy mode in direction X.

[0032] The liquid crystal pointing direction 200D of the viewing angle control panel 200 can be defined, for example, by the first alignment layer and the second alignment layer. Referring to FIG2A, FIG2A shows that the alignment direction AL1 of the first alignment layer (i.e., the alignment layer near the active element array substrate) has an angle Ø1 (the angle obtained by rotating the direction X counterclockwise to the alignment direction AL1, where 0° < Ø1 < 360°) and the alignment direction AL2 of the second alignment layer (i.e., the alignment layer near the other substrate) has an angle Ø2 (the angle obtained by rotating the direction X counterclockwise to the alignment direction AL2, where 0° < Ø2 < 360°) and the angle Ø between the liquid crystal pointing direction 200D and the direction X can be defined as Ø1 + ((Ø2 - 180°) - Ø1) / 2. For example, if the angle Ø1 between the alignment direction AL1 of the first alignment layer and direction X is 70 degrees, and the angle Ø2 between the alignment direction AL2 of the second alignment layer and direction X is 240 degrees, then the angle Ø between the liquid crystal pointing direction 200D and direction X is 65 degrees. As another example, if the angle Ø1 between the alignment direction AL1 of the first alignment layer and direction X is 60 degrees, and the angle Ø2 between the alignment direction AL2 of the second alignment layer and direction X is 250 degrees, then the angle Ø between the liquid crystal pointing direction 200D and direction X is 65 degrees.

[0033] Please refer to FIG2B, which shows that the same liquid crystal pointing direction 200D as FIG2A can be defined by different alignment directions AL1 and AL2; however, this disclosure is not limited to the definition of the liquid crystal pointing direction 200D shown in FIG2A and FIG2B. For example, if the angle Ø1 between the alignment direction AL1 of the first alignment layer and direction X is 65 degrees, and the angle Ø2 between the alignment direction AL2 of the second alignment layer and direction X is 245 degrees, then the angle Ø between the liquid crystal pointing direction 200D and direction X is 65 degrees. FIG3A is a partial top view schematic diagram of an embodiment according to region R of FIG1, and FIG3B is an enlarged schematic diagram of an embodiment according to FIG3A.

[0034] Referring to FIG3A, in this embodiment, the display panel 100 includes a light-shielding layer BM. The light-shielding layer BM may, for example, have a plurality of opening areas OR. More specifically, the light-shielding layer BM may be configured to have a grid structure to define the plurality of opening areas OR. In some embodiments, the material of the light-shielding layer BM may include black resin, black photoresist, metal, or a combination thereof. The light-shielding layer BM may, for example, have functions such as absorbing part of the light, blocking part of the light, and / or shielding components and wiring inside the display device 10a. In this embodiment, the display panel 100 also includes a light-filtering layer CF, thereby enabling the display device 10a to display a color display image. The light-filtering layer CF is disposed, for example, in the plurality of opening areas OR of the light-shielding layer BM. In some embodiments, the light-filtering layer CF includes a red light-filtering layer CF1, a green light-filtering layer CF2, and a blue light-filtering layer CF3, but this disclosure is not limited thereto. In other embodiments, the light-filtering layer CF may include light-filtering layers of other colors.

[0035] From another perspective, the display panel 100 includes, for example, a plurality of pixels P, wherein FIG. 3A uses pixels P1 and P2 as examples, but this disclosure is not limited thereto. At least one of the plurality of pixels P includes, for example, a plurality of sub-pixels SP. Taking pixel P1 shown in FIG. 3A as an example, in this embodiment, pixel P1 includes a first sub-pixel SP1, a second sub-pixel SP2, and a third sub-pixel SP3. The first sub-pixel SP1, the second sub-pixel SP2, and the third sub-pixel SP3 are provided, for example, corresponding to a plurality of opening regions OR of the light-shielding layer BM. In detail, the plurality of opening regions OR may include a first opening region OR1, a second opening region OR2, and a third opening region OR3 arranged along the direction Y. The first opening region OR1 is provided corresponding to the first sub-pixel SP1, the second opening region OR2 is provided corresponding to the second sub-pixel SP2, and the third opening region OR3 is provided corresponding to the third sub-pixel SP3. Based on this, the first sub-pixel SP1, the second sub-pixel SP2, and the third sub-pixel SP3 are also arranged along the direction Y. As described in the above embodiments, the first sub-pixel SP1, the second sub-pixel SP2, and the third sub-pixel SP3 may emit light of different colors. In some embodiments, the first sub-pixel SP1, the second sub-pixel SP2, and the third sub-pixel SP3 may each emit red, green, and blue light, but this disclosure is not limited thereto. In some embodiments, the first sub-pixel SP1, the second sub-pixel SP2, and the third sub-pixel SP3 may have the same area and / or shape, but this disclosure is not limited thereto. In other embodiments, the first sub-pixel SP1, the second sub-pixel SP2, and the third sub-pixel SP3 may have different areas. For example, the area of ​​the second sub-pixel SP2 may be larger than the area of ​​the first sub-pixel SP1, and the area of ​​the second sub-pixel SP2 may be larger than the area of ​​the third sub-pixel SP3.

[0036] In this embodiment, at least one of the plurality of opening areas OR of the light-shielding layer BM has two first edges E1 and two second edges E2, and the two first edges E1 correspond to each other, and the two second edges E2 correspond to each other. Macroscopically, the first edges E1 extend substantially in the direction Y, and the second edges E2 extend substantially in the direction X, but are not limited thereto. Taking the first opening area OR1 shown in FIG3A as an example, one of the two first edges E1 has, for example, a first length L1, and the distance between the two first edges E1 is, for example, a first distance D1. In this embodiment, the first length L1 is less than the first distance D1. Based on this, in this embodiment, each sub-pixel of the plurality of pixels P included in the display panel 100 is vertically arranged in the direction Y. By making each sub-pixel of the plurality of pixels P included in the display panel 100 vertically arranged, the privacy protection capability of the display device 10a can be increased, the reason for which will be detailed in the following embodiments.

[0037] In this embodiment, the first length L1 is greater than or equal to 10 μm and less than or equal to 70 μm. For example, the first length L1 may be, for example, 10 μm, 25 μm, 35 μm, 50 μm, 70 μm or other values ​​in the range of 10 μm and 70 μm.

[0038] In this embodiment, the first distance D1 (the distance between the two first edges E1) is greater than or equal to 30 μm and less than or equal to 210 μm. For example, the first distance D1 may be 30 μm, 80 μm, 120 μm, 150 μm, 210 μm or other values ​​in the range of 30 μm and 210 μm.

[0039] Specifically, please refer to Figure 4, which shows a graph of the relationship between the viewing angle and the luminance ratio of the display device 10a. The luminance ratio is defined as the percentage of the brightness of the display device 10a when viewed or measured from a certain angle in privacy mode to the brightness when viewed or measured from a positive viewing angle (direction Z). For example, when viewed or measured from the left side (direction -X) of the positive viewing angle of the display device 10a, the viewing angle can be represented as a negative value, and when viewed or measured from the right side (direction X) of the positive viewing angle of the display device 10a, the viewing angle can be represented as a positive value. In this embodiment, taking the viewing or measurement from the left side (direction -X) of the positive viewing angle of the display device 10a as an example, the viewing angle at the minimum brightness of the display device 10a is located at approximately 48°, the luminance ratio is less than 1% in the viewing angle from approximately 33° to approximately 64°, and the luminance ratio is less than 0.5% in the viewing angle from approximately 36° to approximately 57°, but this disclosure is not limited thereto. The main reason for this is that the sub-pixels in the multiple pixels P are arranged vertically, and each of the multiple pixels P corresponds to only two parts of the light-shielding layer BM in the direction X. Therefore, each of the multiple pixels P has only one diffraction source in the direction X, which can reduce the scattering phenomenon caused by the diffraction of multiple pixels P, thereby increasing the privacy protection capability of the display device 10a.

[0040] Referring to Figure 3B, in this embodiment, the display panel 100 may further include a plurality of transistors T, a plurality of scan lines SL, a plurality of data lines DL, and a first electrode 400a.

[0041] One of the plurality of transistors T includes, for example, a gate G, a source S, a drain D, and a semiconductor layer SE, wherein the semiconductor layer SE is disposed, for example, between the gate G and the source S and the drain D, but this disclosure is not limited thereto. The material of the semiconductor layer SE may include, for example, low-temperature polysilicon (LTPS), metal oxide, amorphous silicon (a-Si), or combinations thereof, but this disclosure is not limited thereto. For example, the material of the semiconductor layer SE may include, but is not limited to, amorphous silicon, polysilicon, germanium, compound semiconductors (e.g., gallium nitride, silicon carbide, gallium arsenide, gallium phosphide, indium phosphide, indium arsenide, and / or indium antimonide), alloy semiconductors (e.g., SiGe alloy, GaAsP alloy, AlInAs alloy, AlGaAs alloy, GaInAs alloy, GaInP alloy, GaInAsP alloy), or combinations thereof. The semiconductor layer SE may also contain, but is not limited to, metal oxides, such as indium gallium zinc oxide (IGZO), indium zinc oxide (IZO), indium gallium zinc oxide (IGZTO), or organic semiconductors containing polycyclic aromatic compounds, or combinations thereof. In this embodiment, the semiconductor layer SE is made of amorphous silicon, but this disclosure is not limited thereto. The gate G, for example, at least partially overlaps with the semiconductor layer SE. The source S and drain D, for example, are separated from each other and cover at least a portion of the semiconductor layer SE and are electrically connected to the semiconductor layer SE.

[0042] From a macroscopic perspective, multiple scan lines SL extend substantially in direction X, and multiple data lines DL extend in direction Y, perpendicular to direction X and direction Y. In this embodiment, two adjacent scan lines SL and two adjacent data lines DL may define a sub-pixel SP of the display device 10a, but this disclosure is not limited thereto. The gate G of one of the plurality of transistors T may be electrically connected, for example, to the corresponding scan line SL to receive the corresponding scan signal, and the source S of one of the plurality of transistors T may be electrically connected, for example, to the corresponding data line DL to receive the corresponding data signal. In some embodiments, the materials of the scan lines SL and data lines DL may each include, for example, molybdenum (Mo), titanium (Ti), tantalum (Ta), niobium (Nb), hafnium (Hf), nickel (Ni), chromium (Cr), cobalt (Co), zirconium (Zr), tungsten (W), aluminum (Al), copper (Cu), silver (Ag), other suitable metals, or alloys or combinations of the above materials, and this disclosure is not limited thereto. The scan line SL and the data line DL may include the same or different materials, for example, and this disclosure is not limited thereto.

[0043] The first electrode 400a is electrically connected to the transistor T, for example. In this embodiment, the first electrode 400a can be used as a pixel electrode and is electrically connected to the drain D of the transistor T through the contact hole H, but this disclosure is not limited thereto. In other embodiments, the first electrode 400a can be used as a common electrode. The material of the first electrode 400a may include, for example, a metal oxide conductive material (e.g., indium tin oxide, indium zinc oxide, aluminum tin oxide, aluminum zinc oxide, indium germanium zinc oxide), but this disclosure is not limited thereto.

[0044] In this embodiment, the first electrode 400a has a plurality of fingers 410a. The plurality of fingers 410a are arranged, for example, along the direction Y. In some embodiments, at least one of the plurality of fingers 410a has a strip region 412. The extending direction of the strip region 412 is, for example, parallel to at least one of the plurality of scan lines SL. In addition, the extending direction of the strip region 412 is also, for example, parallel to the extending direction of the second edge E2 of the corresponding opening region OR, but this disclosure is not limited thereto. In this embodiment, the absolute value of the angle α between the extending direction of the strip region 412 and the direction X is between 3° and 15° (3°≦|α|≦15°), and the strip regions of the fingers corresponding to different pixels or sub-pixels have different extending directions, but are not limited thereto. For example, the angle α between the extension direction of the strip-shaped region 412 of the plurality of fingers 410a corresponding to pixel P1 or a sub-pixel of pixel P1 and direction X is between -3° and -15° (calculated by rotating clockwise from direction X to the extension direction of the strip-shaped region 412), and the angle α between the extension direction of the strip-shaped region 412 of the plurality of fingers 410a corresponding to pixel P2 or a sub-pixel of pixel P2 and direction X is between 3° and 15° (calculated by rotating counterclockwise from direction X to the extension direction of the strip-shaped region 412). In some embodiments, the absolute value of the angle α between the extension direction of the strip-shaped region 412 of the fingers 410a of pixel P2 or a sub-pixel of pixel P2 and direction X is 7°, but this disclosure is not limited thereto. FIG3C is an enlarged schematic diagram according to another embodiment of FIG3A. It should be noted that the embodiment of FIG3C may use the component references and some contents of the embodiment of FIG3B, wherein the same or similar references are used to represent the same or similar components, and the description of the same technical contents is omitted.

[0045] Referring to FIG3C, the main difference between the first electrode 400b of this embodiment and the first electrode 400a described above is that the finger portion 410b includes two strip-shaped regions 412 and a bending region 414 located between the two strip-shaped regions.

[0046] In detail, the second edge E2 of the opening area OR of the light-shielding layer BM has a V-shaped shape, for example, in the Z direction. Therefore, the two strip regions 412 corresponding to the same sub-pixel SP can have different extension directions, and the bending region 414 is used to connect one end of each of the two strip regions 412 to form a corresponding finger 410b. In some embodiments, the finger 410b corresponding to each sub-pixel includes two strip regions 412 with different extension directions and a bending region 414 located between the two strip regions, and different sub-pixels can correspond to the same structure of the finger 410b, but this is not a limitation.

[0047] In the embodiments of Figures 3B and 3C, when no voltage is applied to the display panel 100, the long axis direction of the liquid crystal molecules (not shown) is substantially parallel to direction X. When a voltage is applied to the display panel 100, the liquid crystal molecules can deflect according to the direction of the electric field, allowing light to pass through and displaying an image. The direction of the electric field can be approximately parallel to the arrangement direction of the plurality of fingers 410a (plural fingers 410b) of the first electrode 400a (first electrode 400b). In this embodiment, the direction of the electric field is substantially direction Y, but it is not limited thereto.

[0048] FIG5A is a schematic diagram of a display device including an embodiment of the present disclosure for an automotive display, FIG5B shows a schematic diagram of an embodiment of the liquid crystal pointing direction of the viewing angle control panel in the automotive display, and FIG5C shows a schematic diagram of another embodiment of the liquid crystal pointing direction of the viewing angle control panel in the automotive display.

[0049] Please refer to FIG5A, which shows a vehicle display 1 applied to a left-hand drive vehicle. It includes a display device 10a of this embodiment and another display device 1000, wherein the display device 1000 is disposed to the left of the display device 10a of this embodiment, but this disclosure is not limited thereto. The display device 10a of this embodiment includes, for example, a co-driver display disposed in front of the passenger side CP, and the display device 1000 includes, for example, a center information display and an instrument cluster disposed in front of the driver side FP, but this disclosure is not limited thereto. In some embodiments, the viewing control panel 200 in the display device 10a may have a liquid crystal pointing direction 200D1 or a liquid crystal pointing direction 200D1' as shown in FIG5B. Referring to Figure 5B, in some embodiments, the included angle θa is the angle between the liquid crystal pointing direction 200D1 and the direction Y (the extension direction of the first edge E1 of the opening region OR), and the included angle θa is defined as the angle obtained by rotating clockwise from the direction Y to the liquid crystal pointing direction 200D1, but this disclosure is not limited thereto. In some embodiments, the included angle θa between the liquid crystal pointing direction 200D1 and the extension direction of the first edge E1 of the opening region OR is, for example, between -25° and 0°, or between -15° and 0°. In other embodiments, the included angle θa' is the angle between the liquid crystal pointing direction 200D1' and the direction Y (the extension direction of the first edge E1 of the opening region OR), and the included angle θa' is defined as the angle obtained by rotating counterclockwise from the direction Y to the liquid crystal pointing direction 200D1', but this disclosure is not limited thereto. In some embodiments, the included angle θa' between the liquid crystal pointing direction 200D1' and the extension direction of the first edge E1 of the opening region OR is, for example, between 180° and 205°, or between 180° and 195°.

[0050] In some other embodiments, the vehicle display 1 can be applied to right-hand drive vehicles. That is, the display device 1000 is disposed to the right of the display device 10a in this embodiment. Referring to FIG5C, in some embodiments, the viewing angle control panel 200 in the display device 10a may have a liquid crystal pointing direction 200D2 or a liquid crystal pointing direction 200D2' as shown in FIG5C. In some embodiments, the included angle θb is the angle between the liquid crystal pointing direction 200D2 and the direction Y (the extension direction of the first edge E1 of the opening region OR), and the included angle θb is defined as the angle obtained by rotating counterclockwise from the direction Y to the liquid crystal pointing direction 200D2, but this disclosure is not limited thereto. In some embodiments, the included angle θb between the liquid crystal pointing direction 200D2 and the extension direction of the first edge E1 of the opening region OR is, for example, between 0° and 25°, or between 0° and 15°. In other embodiments, the included angle θb' is the angle between the liquid crystal pointing direction 200D2' and the direction Y (the extension direction of the first edge E1 of the opening region OR), and the included angle θb' is defined as the angle obtained by rotating counterclockwise from the direction Y to the liquid crystal pointing direction 200D2', but this disclosure is not limited thereto. In some embodiments, the included angle θb' between the liquid crystal pointing direction 200D2' and the extension direction of the first edge E1 of the opening region OR is, for example, between 155° and 180°, or between 165° and 180°.

[0051] In the vehicle display 1 shown in the above embodiment, by designing the relationship between the angle between the liquid crystal pointing direction 200D1, the liquid crystal pointing direction 200D1', the liquid crystal pointing direction 200D2 and the liquid crystal pointing direction 200D2' and the direction Y (the extension direction of the first edge E1 of the opening area OR), the anti-peeping capability of the vehicle display 1 at a relatively small viewing angle can be improved, so as to reduce the possibility that the screen displayed by the display device 10a will affect driving.

[0052] Figure 6 is a three-dimensional exploded view of the display device according to the second embodiment of this disclosure. It should be noted that the embodiment of Figure 6 may use the component reference numerals and some contents of the embodiment of Figure 1, wherein the same or similar reference numerals are used to represent the same or similar components, and the description of the same technical content is omitted.

[0053] Referring to FIG6, the main difference between the display device 10b of this embodiment and the display device 10a described above is that the second view control panel 220 is disposed between the display panel 100 and the first view control panel 210.

[0054] In this embodiment, the display panel 100 is located away from the user relative to the first-view control panel 210 and the second-view control panel 220. That is, the first-view control panel 210 and the second-view control panel 220 are positioned above the display panel 100. In some embodiments, the first-view control panel 210 and the second-view control panel 220 may have different phase delays. For example, the phase delay of the first-view control panel 210 may be greater than that of the second-view control panel 220 to improve the privacy protection capability of the first-view control panel 210 at relatively small viewing angles, but this disclosure is not limited thereto.

[0055] In this embodiment, since the third polarizing plate 330, the fourth polarizing plate 340, and the first polarizing plate 310 are located on the same side of the display panel 100, the absorption axes 330A of the third polarizing plate 330 and the fourth polarizing plate 340A are, for example, parallel to the absorption axis 310A of the first polarizing plate 310. In other words, the absorption axes 330A of the third polarizing plate 330 and the fourth polarizing plate 340A are parallel to the X direction, but this disclosure is not limited thereto.

[0056] In some other embodiments, the display panel 100 may be disposed between the first-view control panel 210 and the second-view control panel 220. The first-view control panel 210 is closer to the user than the second-view control panel 220. Based on this, in some embodiments, the first-view control panel 210 and the second-view control panel 220 may have different phase delays. Specifically, the phase delay of the first-view control panel 210 may, for example, be greater than that of the second-view control panel 220 to improve the privacy protection capability of the first-view control panel 210 at relatively small viewing angles, but this disclosure is not limited thereto.

[0057] Figure 7 is a partially enlarged top view schematic diagram of another embodiment based on region R of Figure 1. It should be noted that the embodiment of Figure 7 may use the component reference numerals and some contents of the embodiment of Figure 3B, wherein the same or similar reference numerals are used to represent the same or similar components, and the description of the same technical content is omitted.

[0058] Referring to Figure 7, in this embodiment, the display panel 100 may include multiple transistors T, multiple scan lines SL, multiple data lines DL, and a first electrode 400c.

[0059] One of the plurality of transistors T includes, for example, a gate G, a source S, a drain D, and a semiconductor layer SE. Further details regarding the gate G, the source S, the drain D, and the semiconductor layer SE can be found in the above embodiments and will not be repeated here.

[0060] From a macroscopic perspective, multiple scan lines SL extend substantially in direction X, and multiple data lines DL extend in direction Y, with direction X perpendicular to (or intersecting with) direction Y. In this embodiment, two adjacent scan lines SL and two adjacent data lines DL can define a sub-pixel SP of the display device 10c, but this disclosure is not limited thereto. Further descriptions of the scan lines SL and data lines DL can be found in the above embodiments and will not be repeated here.

[0061] In this embodiment, the first electrode 400c can be used as a common electrode, but this disclosure is not limited thereto. In other embodiments, the first electrode 400c can be used as a pixel electrode. The material of the first electrode 400c can refer to the above embodiments, and will not be repeated here. In this embodiment, the first electrode 400c has a plurality of fingers 410c. The plurality of fingers 410c are arranged, for example, along the Y direction. In some embodiments, a plurality of fingers 410c corresponding to the same sub-pixel SP may include a first finger 410c1 and a second finger 410c2, wherein the angle α between the extension direction of the strip region 412c1 in the first finger 410c1 and the direction X may be between 3° and 15° (calculated from the direction X rotated counterclockwise to the extension direction of the strip region 412c1), and the angle α between the extension direction of the strip region 412c2 in the second finger 410c2 and the direction X may be between -3° and -15° (calculated from the direction X rotated clockwise to the extension direction of the strip region 412c2). From another perspective, the strip regions 412c1 and 412c2 of the first finger 410c1 and the second finger 410c2 corresponding to the same sub-pixel SP may have different extension directions in the XY plane. In some embodiments, each sub-pixel SP corresponds to multiple fingers 410c, each including at least two strip regions 412c1 and 412c2 with different extending directions, and different sub-pixels SP may correspond to the same finger 410c structure, but are not limited thereto.

[0062] In this embodiment, at least one of the plurality of opening regions OR of the light-shielding layer BM has two first edges E1 and two second edges E2. The two first edges E1 correspond to each other and extend along the Y direction, and the two second edges E2 correspond to each other and extend along the X direction. The first edge E1 has a first length L1, which is greater than or equal to 30 μm and less than or equal to 210 μm. The first distance D1 between the two first edges E1 is greater than or equal to 10 μm and less than or equal to 70 μm. In this embodiment, the first distance D1 may be the length of the second edge E2.

[0063] In this embodiment, when no voltage is applied to the display panel 100, the long axis direction of the liquid crystal molecules (not shown) is substantially parallel to direction X. When a voltage is applied to the display panel 100, the liquid crystal molecules can deflect according to the direction of the electric field, allowing light to pass through and displaying an image. The direction of the electric field can be approximately parallel to the arrangement direction of the plurality of fingers 410c of the first electrode 400c. In this embodiment, the direction of the electric field is substantially direction Y, but it is not limited thereto.

[0064] FIG8 is a three-dimensional exploded view of the display device according to the third embodiment of the present disclosure. It should be noted that the embodiment of FIG8 may use the component reference numerals and some contents of the embodiment of FIG1, wherein the same or similar reference numerals are used to represent the same or similar components, and the description of the same technical content is omitted.

[0065] Referring to FIG8, the main difference between the display device 10c of this embodiment and the display device 10a described above is that the display device 10c further includes a backlight module 500. The backlight module 500 of this embodiment can also be combined with the display device 10b of FIG6.

[0066] In this embodiment, the backlight module 500 includes a light source 510 and multiple optical films, which can be single optical films or composite optical films. As shown in FIG8, the multiple optical films include a diffuser 520, a first brightness enhancement film 530, a second brightness enhancement film 540, a third brightness enhancement film 550, and a light control film 560, wherein the diffuser 520, the first brightness enhancement film 530, the second brightness enhancement film 540, the third brightness enhancement film 550, and the light control film 560 are stacked in this order in the Z direction, but are not limited thereto. The light source 510 can be disposed below or to the side of the diffuser 520, but is not limited thereto.

[0067] The light source 510 is, for example, a component in the backlight module 500 used to provide light. In some embodiments, the light source 510 can provide light to a light guide plate (not shown) so that the light can be transmitted, for example, in the light guide plate and provided to the display panel 100 and / or the viewing angle control panel 200. In some embodiments, the light source 510 may include a plurality of light-emitting diodes, wherein the driving mode of the light-emitting diodes may include passive matrix addressing, active matrix addressing, or integrated circuit control, but is not limited thereto.

[0068] The diffuser 520 is used, for example, to diffuse light provided by the light source 510. The first brightness enhancement film 530, the second brightness enhancement film 540, and the third brightness enhancement film 550 may, for example, have the effect of concentrating and brightening the light. In this embodiment, the first brightness enhancement film 530 and the second brightness enhancement film 540 may include prism sheets, and the third brightness enhancement film 550 may include a dual brightness enhancement film (DBEF), but this disclosure is not limited thereto. Based on this, by setting the first brightness enhancement film 530 and the second brightness enhancement film 540, the light passing through the diffuser 520 can be deflected to the Z direction, and by setting the third brightness enhancement film 550, light that is not parallel to the polarization direction of the third brightness enhancement film 550 (or, in other words, not parallel to the penetration axis of the third brightness enhancement film 550) can be reflected to recycle the light and improve the utilization efficiency of the light. The light control film (LCF) 560 can, for example, be used to restrict the direction of light travel through the third brightness enhancement film 550, so that the light is further collimated and provided to the display panel 100 and / or the viewing angle control panel 200. In this embodiment, the light control film 560 has a plurality of light-shielding patterns 562 spaced apart from each other, and the light-shielding patterns 562 extend along direction D1, but this disclosure is not limited thereto. In some embodiments, the light control film 560 may form a composite film with the third brightness enhancement film 550, but this disclosure is not limited thereto.

[0069] In some embodiments, the absolute value of the angle between the polarization direction of the third brightness enhancement film 550 (or the transmission axis of the third brightness enhancement film 550) and the polarization direction of the adjacent polarizing plate (which may be the transmission axis of the fourth polarizing plate 340 or the transmission axis of the second polarizing plate 320 as shown in FIG. 6) is greater than or equal to 0 degrees and less than or equal to 15 degrees (calculated by rotating from the polarization direction of the adjacent polarizing plate along the counterclockwise or clockwise direction to the polarization direction of the third brightness enhancement film 550), and the absolute value of the angle between the polarization direction of the third brightness enhancement film 550 and the extension direction (direction D1) of the plurality of light-shielding patterns 562 of the light control film 560 is greater than or equal to 0 degrees and less than or equal to 15 degrees (calculated by rotating from direction D1 along the counterclockwise or clockwise direction to the polarization direction of the third brightness enhancement film 550). In some embodiments, the polarization direction of the third brightness enhancement film 550 is substantially parallel to the extension direction (direction D1) of the plurality of light-shielding patterns 562 of the light control film 560, but is not limited thereto. This design helps to reduce light loss provided by the backlight module 500 to the display panel 100 and / or the viewing angle control panel 200.

[0070] In this embodiment, the extension direction (direction D1) of the plurality of light-shielding patterns 562 of the light control film 560 and the extension direction (direction Y) of the first edge E1 of the light-shielding layer BM of the display panel 100 have an included angle θ3, the absolute value of which is greater than or equal to 80 degrees and less than or equal to 90 degrees. In some embodiments, when the display device is applied to a left-hand drive vehicle, the included angle θ3 may be greater than or equal to -90 degrees and less than or equal to -80 degrees (calculated by rotating clockwise from direction Y to direction D1), but is not limited thereto. In some embodiments, when the display device is applied to a right-hand drive vehicle, the included angle θ3 may be greater than or equal to 80 degrees and less than or equal to 90 degrees (calculated by rotating counterclockwise from direction D1 to direction Y), but is not limited thereto. From another perspective, in this embodiment, the extension direction (direction D1) of the plurality of light-shielding patterns 562 of the light control film 560 and the extension direction (direction X) of the second edge E2 of the light-shielding layer BM of the display panel 100 have an angle θ4, the absolute value of which is greater than or equal to 0 degrees and less than or equal to 10 degrees. In some embodiments, when the display device is applied to a left-hand drive vehicle, the angle θ4 is greater than or equal to 0 degrees and less than or equal to 10 degrees (calculated by rotating counterclockwise from direction X to direction D1), but is not limited thereto. In some embodiments, when the display device is applied to a right-hand drive vehicle, the angle θ4 is greater than or equal to -10 degrees and less than or equal to 0 degrees (calculated by rotating clockwise from direction X to direction D1), but is not limited thereto. Through the above design, the possibility of moiré patterns being generated in the display device 10c can be reduced, thereby improving the display quality of the display device 10c. In some embodiments, when the absolute value of the angle θ4 between the extension direction (direction D1) of the plurality of light-shielding patterns 562 of the light control film 560 and direction X is greater than or equal to 0 degrees and less than or equal to 10 degrees, it is advantageous to position the display device under the windshield, but this is not a limitation. This design reduces the chance of light from the display device being projected onto the windshield and then reflected into the driver's eyes, thus improving driving safety.

[0071] In this embodiment, the first brightness enhancement film 530 and the second brightness enhancement film 540 may each include a plurality of microstructures 532 and a plurality of microstructures 542, wherein the plurality of microstructures 532 extend along direction D3 and the plurality of microstructures 542 extend along direction D2, and direction D3 is perpendicular to direction D2. In this embodiment, the second brightness enhancement film 540 is disposed between the first brightness enhancement film 530 and the light control film 560, and the absolute value of the angle θ5 between the extension direction (direction D2) of the plurality of microstructures 542 of the second brightness enhancement film 540 and the extension direction (direction D1) of the plurality of light-shielding patterns 562 of the light control film 560 is greater than or equal to 0 degrees and less than or equal to 15 degrees (calculated from direction D1 along the counterclockwise or clockwise direction to direction D2). Through the above design, it is beneficial for the display device 10c to provide a wider range of light patterns.

[0072] Figure 9 is a graph showing the relationship between viewing angle and luminance ratio of a display device according to an embodiment of the present disclosure under E-mode and O-mode architectures. Figure 9 shows the luminance ratio of a display panel with E-mode architecture and a display panel with O-mode architecture when viewed from different viewing angles, with and without applied voltage. The luminance ratio is defined as the percentage of the luminance of the display device when viewed or measured from a certain viewing angle in privacy mode to the luminance when viewed or measured from a normal viewing angle.

[0073] Refer to Figure 9. Compared with the display panel with O-mode architecture, it can be seen that the difference between the brightness ratio before and after voltage is applied to the display panel with E-mode architecture is smaller. Therefore, in privacy mode, the privacy capability of the display panel with E-mode architecture is less likely to be affected or fail due to voltage changes or switching of the display panel.

[0074] In detail, in a display panel with an E-mode architecture, the absorption axis direction of the polarizing plate located below the display panel is perpendicular to the long axis direction of the liquid crystal molecules in the display panel when no voltage is applied (or the absorption axis direction of the polarizing plate below the display panel is parallel to the direction of the electric field after voltage is applied). For example, if the absorption axis direction of the polarizing plate below the display panel is vertical, then the long axis direction of the liquid crystal molecules in the display panel when no voltage is applied is horizontal, and the direction of the electric field after voltage is applied is vertical.

[0075] Based on this, after a voltage is applied to a display panel with an E-mode architecture, the periodic refractive index difference of the liquid crystal molecules in the horizontal direction is smaller. Therefore, compared with a display panel with an O-mode architecture, the scattering effect in the horizontal direction can be reduced when light passes through a display panel with an E-mode architecture, thereby increasing the privacy protection capability of the display device in the horizontal direction.

[0076] In this disclosure, display devices 10a, 10b, and 10c all include a display panel with an E-mode architecture. The display panel with the E-mode architecture can be the display panel 100 shown in Figures 3A, 3B, 3C, and 7. Based on the above, display devices 10a, 10b, and 10c of this embodiment have better privacy protection capabilities in privacy mode.

[0077] In summary, in the display devices provided in some embodiments of this disclosure, by arranging the sub-pixels included in a pixel vertically, each pixel can have only one scattering source in the X direction, thereby reducing diffraction and increasing the privacy protection capability of the display device disclosed herein. Furthermore, by limiting the angle between the liquid crystal pointing direction of the viewing angle control panel and the Y direction, the privacy protection capability of the display device disclosed herein can be improved at relatively small viewing angles, thereby reducing the possibility of affecting driving when the display device disclosed herein is applied to an automotive display.

[0078] In addition, in the display device provided in some embodiments of this disclosure, by having the display device of this embodiment have a display panel with an E-mode architecture, the probability of the privacy protection capability being affected or failing in privacy protection mode can be further reduced. [Simplified Explanation of the Diagram]

[0007] Figure 1 is an exploded perspective view of a display device according to a first embodiment of the present disclosure. Figure 2A is an embodiment of the liquid crystal pointing direction of the viewing angle control panel in the display device shown in Figure 1. Figure 2B is another embodiment of the liquid crystal pointing direction of the viewing angle control panel in the display device shown in Figure 1. Figure 3A is a partial top view of an embodiment according to region R of Figure 1. Figure 3B is an enlarged view of an embodiment according to Figure 3A. Figure 3C is an enlarged view of another embodiment according to Figure 3A. Figure 4 is a graph showing the relationship between the viewing angle and brightness ratio of a display device according to an embodiment of the present disclosure. Figure 5A is a schematic diagram of a display device including an embodiment of the present disclosure for an automotive display. Figure 5B is a schematic diagram showing an embodiment of the liquid crystal pointing direction of the viewing angle control panel in an automotive display. Figure 5C is a schematic diagram showing another embodiment of the liquid crystal pointing direction of the viewing angle control panel in an automotive display. Figure 6 is an exploded perspective view of a display device according to a second embodiment of the present disclosure. Figure 7 is a partial enlarged top view of another embodiment according to region R of Figure 1. Figure 8 is an exploded perspective view of a display device according to a third embodiment of the present disclosure. Figure 9 is a graph showing the relationship between the viewing angle and brightness ratio of a display device according to an embodiment of this disclosure under E-mode and O-mode architectures.

Claims

1. A display device, comprising: A display panel includes a light-shielding layer having a plurality of opening areas, wherein at least one of the plurality of opening areas has two first edges, the two first edges corresponding to each other and extending along a first direction; And a viewing control panel, superimposed on the display panel, and having a liquid crystal pointing direction, wherein the angle between the liquid crystal pointing direction and the first direction is between -25° and 25° or 155° and 205°, wherein one of the two first edges has a first length, the distance between the two first edges is a first distance, and the first length is less than the first distance.

2. The display device as claimed in claim 1, wherein the display panel further comprises: The data line extends along the first direction; The scan lines intersect with the data lines and extend along the second direction; The first electrode has a plurality of fingers arranged along the first direction, at least one of the plurality of fingers having a strip-shaped region, and the strip-shaped region being parallel to at least one of the plurality of scan lines.

3. The display device as claimed in claim 1, wherein the display panel further includes a first polarizing plate disposed on a surface opposite to the light-emitting surface of the display panel and having a first absorption axis, wherein the first absorption axis is parallel to the first direction.

4. The display device as claimed in claim 3, wherein the display panel further comprises liquid crystal molecules, wherein the long axis of the liquid crystal molecules is perpendicular to the first absorption axis when no voltage is applied.

5. The display device as claimed in claim 1, for installation in a left-hand drive vehicle, wherein the angle between the liquid crystal pointing direction and the first direction is between -25° and 0° or 180° and 205°.

6. The display device as claimed in claim 1, for installation in a right-hand drive vehicle, wherein the angle between the liquid crystal pointing direction and the first direction is between 0° and 25° or between 155° and 180°.

7. A display device, comprising: A display panel includes: data lines extending along a first direction; scan lines intersecting the data lines and extending along a second direction; a first electrode having a plurality of fingers arranged along the first direction; a first polarizing plate disposed on a surface opposite to the light-emitting surface of the display panel and having a first absorption axis; and a viewing angle control panel superimposed on the display panel, wherein the first absorption axis is parallel to the first direction.

8. The display device of claim 7, wherein the display panel further comprises liquid crystal molecules, wherein the long axis of the liquid crystal molecules is perpendicular to the first absorption axis when no voltage is applied.

9. The display device as claimed in claim 7, wherein the electric field direction of the display panel when a voltage is applied is parallel to the first absorption axis.

10. The display device of claim 7, further comprising a backlight module, wherein the backlight module includes a light control film having a plurality of light-shielding patterns spaced apart from each other, and the plurality of light-shielding patterns extending along a third direction, the third direction being different from the first direction and different from the second direction.

11. The display device of claim 7, wherein the plurality of fingers includes a first finger and a second finger, wherein the strip region of the first finger has a first extending direction, the strip region of the second finger has a second extending direction, and the first extending direction is different from the second extending direction.

12. The display device of claim 7, wherein at least one of the plurality of fingers has a strip region, and the absolute value of the angle between the extension direction of the strip region and the second direction is greater than or equal to 3 degrees and less than or equal to 15 degrees.

13. The display device of claim 7, wherein at least one of the plurality of fingers has a first strip area, a second strip area and a bend area, wherein the bend area is located between the first strip area and the second strip area, and the extension direction of the first strip area is different from the extension direction of the second strip area.

Images