Display device

Abstract

The invention provides a display device. The display device comprises a display panel, a first polarizing plate and a visual angle control panel, the display panel comprises a data line, a scanning line and a first electrode. The data lines extend in a first direction. The scanning lines and the data lines are staggered and extend in the second direction. The first electrode is provided with a plurality of finger parts, and the plurality of finger parts are arranged along a first direction. The first polarizing plate is arranged on the surface opposite to the light emitting surface of the display panel and is provided with a first absorption axis, and the first absorption axis is parallel to the first direction. The visual angle control panel is overlapped on the display panel. The display device provided by the invention has relatively good peep-proof capability at a small viewing angle.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to a display device, and more particularly to a display device applied to a vehicle display. BACKGROUND

[0002] When applied to a privacy electronic product, the display device has a requirement of extending the privacy viewing angle in specification. For example, the privacy viewing angle of the screen of a vehicle display is required to be about 30° to about 60°. However, the existing privacy design of the vehicle display has poor privacy ability at a relatively small viewing angle (e.g., less than 45°). SUMMARY

[0003] The present disclosure provides a display device having a relatively good privacy ability at a small viewing angle.

[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, and the light shielding layer has a plurality of opening regions. At least one of the plurality of opening regions has 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 director direction. An included angle between the liquid crystal director 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, a 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 a data line, a scan line, and a first electrode. The data line extends along a first direction. The scan line is staggered with the data line and extends 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 a light exit surface of the display panel and has a first absorption axis parallel to the first direction. The viewing angle control panel overlaps the display panel.

[0006] In order to make the above features and advantages of the present disclosure more apparent, the following embodiments are described in detail, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0007] The accompanying drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0008] Figure 1 A perspective exploded schematic view of a display device according to a first embodiment of the present disclosure;

[0009] Figure 2A A perspective exploded schematic view of a display device according to a second embodiment of the present disclosure;Figure 1 An embodiment of liquid crystal director orientation of a viewing angle control panel in a display device;

[0010] Figure 2B An embodiment of liquid crystal director orientation of a viewing angle control panel in a display device; Figure 1 Another embodiment of liquid crystal director orientation of a viewing angle control panel in a display device;

[0011] Figure 3A Another embodiment of liquid crystal director orientation of a viewing angle control panel in a display device; Figure 1 Partial top view schematic of an embodiment of region R of the present disclosure;

[0012] Figure 3B Partial top view schematic of an embodiment of region R of the present disclosure; Figure 3A Partial top view schematic of an embodiment of region R of the present disclosure;

[0013] Figure 3C Partial top view schematic of an embodiment of region R of the present disclosure; Figure 3A Partial top view schematic of an embodiment of region R of the present disclosure;

[0014] Figure 4 Graph of viewing angle vs. luminance ratio of a display device of an embodiment of the present disclosure;

[0015] Figure 5A Schematic of a vehicle display including a display device of an embodiment of the present disclosure;

[0016] Figure 5B Schematic of an embodiment of liquid crystal director orientation of a viewing angle control panel in a vehicle display;

[0017] Figure 5C Schematic of another embodiment of liquid crystal director orientation of a viewing angle control panel in a vehicle display;

[0018] Figure 6 Schematic of a display device of a second embodiment of the present disclosure;

[0019] Figure 7 Schematic of another embodiment of region R of the present disclosure; Figure 1 Schematic of another embodiment of region R of the present disclosure;

[0020] Figure 8 Schematic of a display device of a third embodiment of the present disclosure;

[0021] Figure 9 Graph of viewing angle vs. luminance ratio of a display device of an embodiment of the present disclosure in E-mode and O-mode. DETAILED DESCRIPTION

[0022] Reference will now be made in detail to exemplary embodiments of the application, examples of which are illustrated in the accompanying drawings. Wherever possible, same reference numbers are used in the drawings and the description to refer to the same or similar parts. It should be noted that the drawings are in simplified form and not to precise scale. In reference

[0023] The present disclosure can be understood with reference to the following detailed description and drawings. It is noted that, for the sake of brevity, the figures of the drawing are not all on the same scale. Like numbers in different figures represent the same or similar elements.

[0024] Throughout this specification and the claims, certain terminology is used for the sake of providing an overall description of the application. The use of such terminology is not intended to limit the scope of the application. Rather, such terminology is used by the inventors to convey the relative nature of the components and actions described herein. For example, terms such as "include," "have," "contain," "comprise," "consist of," and "consist essentially of," are used synonymously with "comprising" to mean that the process or method described includes the recited elements, but not excluding others. The use of "comprise" or "comprising" is not intended to exclude other elements or steps of the methods or processes described herein, whether or not the other elements or steps are specifically recited. The use of "comprise" or "comprising" also is open-ended, and does not exclude the use of "consist" or "consisting" or "consist essentially of" or "consisting essentially of."

[0025] Directional terms as used in this disclosure, such as "upper," "lower," "front," "back," "left," "right," and the like, are made only with reference to the positions of the figures as shown in the drawings. The directional terms are used for purposes of explanation only and not intended to limit the scope of the disclosure. In the drawings, like numbers refer to like elements throughout. The figures are not drawn to scale, and the dimensions of each film layer, region, and / or structure can be exaggerated or minimized for the purpose of clarity.

[0026] When a corresponding structure (e.g., a film layer or region) is referred to as "on" or "under" another structure, it can be directly on or under the other structure or intervening structures can also be present. In contrast, when a structure is referred to as "directly on" or "directly under" another structure, then there are no intervening structures present. In addition, when a structure is referred to as "on" another structure, it can be on top of or below the other structure in a plan view, and the relative position depends on the orientation of the device.

[0027] The terms "equal" or "same," "substantially" or "approximately" are generally construed to be within 20% of a given value or range, or within 10%, 5%, 3%, 2%, 1%, or 0.5% of a given value or range.

[0028] The use of ordinal numbers such as "first," "second," etc. in the specification and claims is used to modify elements and is not meant to imply that a particular order of sequence or manufacturing process is intended, unless otherwise specifically noted. The use of ordinal numbers is used to distinguish elements of the same name from one another. The same ordinal number can be used in different claims to distinguish elements of the same name from one another. The use of ordinal numbers in the claims is not meant to imply that a particular order of sequence or manufacturing process is intended, unless otherwise specifically noted.

[0029] It must be understood that the following examples can be combined, interchanged, substituted, and / or modified without departing from the scope of the disclosure. Features of the various examples can be combined, interchanged, substituted, and / or modified without departing from the scope of the disclosure.

[0030] The electrical connections or couplings described in the disclosure can refer to direct connections or indirect connections. In the case of a direct connection, the end points of the elements on the two circuits are directly connected or connected to each other by a conductor segment. In the case of an indirect connection, the end points of the elements on the two circuits have a switch, a diode, a capacitor, an inductor, other suitable elements, or a combination of the above elements therebetween, but are not limited thereto.

[0031] In the disclosure, the measurement methods of thickness, length, width, and area can be optical microscopy, and the thickness can be measured by cross-sectional images in an electron microscope, but are not limited thereto. In addition, there can be an error between any two values or directions used for comparison. If a first value is equal to a second value, it implies that there can be an error of about 10% between the first value and the second value. If a first direction is perpendicular to a second direction, the angle between the first direction and the second direction can be between 80° and 100°. If a first direction is parallel to a second direction, the angle between the first direction and the second direction can be between 0° and 10°.

[0032] The display device of the present disclosure can be a non-self-luminous display device or a self-luminous display device, and can be a double-sided display device. The display device may, for example, include diodes, liquid crystals, light emitting diodes (LEDs), quantum dots (QDs), fluorescence, phosphor, other suitable display media, or combinations thereof. The light emitting diode may, for example, include an organic light emitting diode (OLED), a micro-LED, a mini-LED, or a quantum dot light emitting diode (QDLED), but is not limited thereto. It should be noted that the display device can be any arrangement combination of the foregoing, but is not limited thereto. In addition, the display device can have a rectangular, circular, polygonal, curved edge shape, or other suitable shape. The display device can have a driving system, a control system, a light source system, and other peripheral systems.

[0033] Figure 1 A schematic diagram of a stereoscopic explosion of a display device of a first embodiment of the present disclosure is shown. The region R of the display panel 100 can be referred to the partial enlarged schematic diagram of Figures 3A to 3C and Figure 7 , which will not be described here.

[0034] Please refer to Figure 1 The display device 10a of the present embodiment includes a display panel 100 and a viewing angle control panel 200. The display panel 100 may, for example, emit light toward the direction Z to display an image. The viewing angle control panel 200 may, for example, overlap the display panel 100 and can be configured to have one or more viewing angle control panels. In the present embodiment, two viewing angle control panels (i.e., the first viewing angle control panel 210 and the second viewing angle control panel 220 in Figure 1 ) are taken 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 direction Z, but the present disclosure is not limited thereto. The display panel 100 may, for example, be a self-luminous display panel or a non-self-luminous display panel, and the present disclosure is not limited thereto. In the present embodiment, the display panel 100 and the viewing angle control panel 200 each include different liquid crystal display panels.

[0035] Please continue to refer to Figure 1 In the present embodiment, the display device 10a can further include a polarizing plate 300. The polarizing plate 300 may, for example, include a first polarizing plate 310, a second polarizing plate 320, a third polarizing plate 330, and a fourth polarizing plate 340.

[0036] The first polarizing plate 310 is disposed, for example, on the light exit surface of the display panel 100. In some embodiments, the first polarizing plate 310 can include a reflective polarizing plate or an absorptive polarizing plate. The first polarizing plate 310 can have, for example, a sandwich structure or a laminated structure. For example, the first polarizing plate 310 can have a polarizing film (not shown) and a protective layer (not shown) disposed on opposite surfaces of the polarizing film, but the present disclosure is not limited thereto. The polarizing film is, for example, a thin film having a light transmission, light deflection, or the like, and the protective layer is, for example, used to support and protect the polarizing film to increase the mechanical strength of the first polarizing plate 310. In some embodiments, the material of the polarizing film can include polyvinyl alcohol (PVA), and the material of the protective layer can include tri-acetyl cellulose (TAC), polymethyl methacrylate (acrylic), or polyethylene terephthalate, but the present disclosure is not limited thereto. In the present embodiment, the absorption axis 310A of the first polarizing plate 310 is parallel to the direction X, but the present disclosure is not limited thereto.

[0037] The second polarizing plate 320 is disposed, for example, on the surface of the display panel 100 opposite to the light exit 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.

[0038] The third polarizing plate 330 is disposed, for example, on the surface of the first viewing angle control panel 210 away from the display panel 100. In other words, the first viewing angle control panel 210 is disposed, for example, between the third polarizing plate 330 and the display panel 100.

[0039] The fourth polarizing plate 340 is disposed, for example, on the surface of the second viewing angle control panel 220 away from the display panel 100. In other words, the second viewing angle control panel 220 is disposed, for example, between the fourth polarizing plate 340 and the display panel 100.

[0040] The structures and materials of the second polarizing plate 320, the third polarizing plate 330, and the fourth polarizing plate 340 can be the same as or similar to those of the first polarizing plate 310, and will not be described here.

[0041] In the present disclosure, the absorption axes of the polarizing plates located on the opposite side (or opposite surface) of the display panel are perpendicular to each other, and the absorption axes of the polarizing plates located on the same side (or same surface) of the display panel are parallel to each other. In the present embodiment, since the first polarizing plate 310 is located on the light exit surface of the display panel, the second polarizing plate 320, the third polarizing plate 330, and the fourth polarizing plate 340 are located on the surface of the display panel opposite to the light exit surface, the absorption axis 310A of the first polarizing plate 310 is perpendicular to 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, and 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 each other. In the present 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 the present disclosure is not limited thereto.

[0042] In the present embodiment, i.e., in the case where the display panel 100 and the viewing angle control panel 200 are non-self-luminous display panels, the display device 10a can further include a backlight module (not shown). The backlight module is disposed on the side of the display panel 100 opposite to the light exit surface, and 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 the present 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 the present disclosure is not limited thereto. For related descriptions of the backlight module, reference can be made to the description of the backlight module in the display device 10 of FIG. 1. Figure 8 .

[0043] In addition, in the case where the display panel 100 is a non-self-luminous display panel, the display panel 100 and the viewing angle control panel 200 can have different phase retardations, for example. In detail, 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 retardation of the display panel 100 is smaller than the phase retardation of the viewing angle control panel 200, but the present disclosure is not limited thereto.

[0044] In the present embodiment, the viewing angle control panel 200 has a liquid crystal director direction 200D, where the included angle θ between the liquid crystal director direction 200D and the direction Y is between -25° (calculated from the direction Y to the liquid crystal director direction 200D along the clockwise direction) to 25° (calculated from the direction Y to the liquid crystal director direction 200D along the counterclockwise direction) (i.e., -25°≤ θ ≤ 25°) or 155° (calculated from the direction Y to the liquid crystal director direction 200D along the counterclockwise direction) to 205° (calculated from the direction Y to the liquid crystal director direction 200D along the counterclockwise direction) (i.e., 155°≤ θ ≤ 205°). It should be understood that in the present disclosure, the angle rotated along the clockwise direction is negative, and the angle rotated along the counterclockwise direction is positive. For example, the positive and negative values of the included angle θ between the liquid crystal director direction 200D and the direction Y are based on the direction Y, when the direction Y is rotated to the liquid crystal director direction 200D along the clockwise direction, the included angle θ is negative; otherwise, when the direction Y is rotated to the liquid crystal director direction 200D along the counterclockwise direction, the included angle θ is positive. In the present disclosure, the applicable range of the included angle θ can vary with the type of liquid crystal. For example, when the viewing angle control panel 200 adopts a vertical alignment (VA) type, the included angle θ is between -25° to 25° or 155° to 205°, and when the viewing angle control panel 200 adopts an electrically controlled birefringence (ECB) liquid crystal architecture, the included angle θ is between -15° to 15° or 165° to 195°, but not limited thereto.

[0045] In detail, the viewing angle control panel 200 can be, for example, an electrically controlled viewing angle control liquid crystal panel. For example, the structure of the viewing angle control panel 200 can 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 layers of 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 layers of transparent electrode layers, where 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 the present embodiment, the two layers of transparent electrode layers disposed on both sides of the liquid crystal layer are whole-surface electrodes. By changing the voltage between the two layers of transparent electrode layers, the degree of penetration of light in the liquid crystal layer can be adjusted, so that the viewing angle control panel 200 has the effect of switching the viewing angle. Based on this, the viewing angle control panel 200 can be controlled by providing an electrical signal, so that the display device 10a can be switched between a sharing mode and a privacy mode. In the present embodiment, the display device 10a can provide the switching effect of the sharing mode and the privacy mode in the direction X.

[0046] The liquid crystal director direction 200D of the viewing angle control panel 200 can be defined, for example, by the first alignment layer and the second alignment layer. Please refer to Figure 2A , Figure 2A The angle between the alignment direction AL1 of the first alignment layer (i.e., the alignment layer close to the active element array substrate) and the direction X is shown as an angle (clockwise from the direction X to the alignment direction AL1, wherein ), and the angle between the alignment direction AL2 of the second alignment layer (i.e., the alignment layer close to the other substrate) and the direction X is shown as an angle (clockwise from the direction X to the alignment direction AL2, wherein ), the angle between the liquid crystal director direction 200D and the direction X can be defined as For example, the angle between the alignment direction AL1 of the first alignment layer and the direction X is 70 degrees, the angle between the alignment direction AL2 of the second alignment layer and the direction X is 240 degrees, and the angle between the liquid crystal director direction 200D and the direction X is 65 degrees. For another example, the angle between the alignment direction AL1 of the first alignment layer and the direction X is 60 degrees, the angle between the alignment direction AL2 of the second alignment layer and the direction X is 250 degrees, and the angle between the liquid crystal director direction 200D and the direction X is 65 degrees.

[0047] Please refer to Figure 2B , which shows that the same liquid crystal director direction 200D can be defined by different alignment direction AL1 and alignment direction AL2; however, the definition of the liquid crystal director direction 200D shown in Figure 2A is not limited. For example, the angle between the alignment direction AL1 of the first alignment layer and the direction X is 65 degrees, the angle between the alignment direction AL2 of the second alignment layer and the direction X is 245 degrees, and the angle between the liquid crystal director direction 200D and the direction X is 65 degrees. Figure 2A Figure 2B Figure 3A is a partial top view schematic diagram of an embodiment of the region R according to Figure 1 , and Figure 3B is an enlarged schematic diagram of an embodiment according to Figure 3A .

[0048] Please refer to Figure 3A ​​​​​​​​​​​​In the present embodiment, the display panel 100 includes a light blocking layer BM. The light blocking layer BM may, for example, have a plurality of open regions OR. In detail, the light blocking layer BM can be configured to have a grid structure to define the plurality of open regions OR. In some embodiments, the material of the light blocking layer BM can include black resin, black photoresist, metal, or a combination thereof. The light blocking layer BM may, for example, have the functions of absorbing part of the light, blocking part of the light, and / or shielding elements and wiring inside the display device 10a. In the present embodiment, the display panel 100 further includes a color filter layer CF, whereby the display device 10a can display a colorful display screen. The color filter layer CF is, for example, disposed in the plurality of open regions OR of the light blocking layer BM. In some embodiments, the color filter layer CF includes a red color filter layer CF1, a green color filter layer CF2, and a blue color filter layer CF3, but the present disclosure is not limited thereto. In other embodiments, the color filter layer CF can include color filter layers of other colors.

[0049] From another perspective, the display panel 100 includes, for example, a plurality of pixels P, wherein Figure 3A For example, the pixel P1 and the pixel P2, but the present disclosure is not limited thereto. At least one of the plurality of pixels P includes, for example, a plurality of sub-pixels SP. For example, the pixel P1, but the present disclosure is not limited thereto. The pixel P1 includes, for example, a first sub-pixel SP1, a second sub-pixel SP2, and a third sub-pixel SP3. Figure 3A For example, the pixel P1, but the present disclosure is not limited thereto. In the present embodiment, the 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, for example, disposed corresponding to the plurality of open regions OR of the light blocking layer BM. In detail, the plurality of open regions OR can include a first open region OR1, a second open region OR2, and a third open region OR3 arranged along a direction Y. The first open region OR1 is disposed corresponding to the first sub-pixel SP1, the second open region OR2 is disposed corresponding to the second sub-pixel SP2, and the third open region OR3 is disposed 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 embodiment, the first sub-pixel SP1, the second sub-pixel SP2, and the third sub-pixel SP3 can emit light of different colors from each other. In some embodiments, the first sub-pixel SP1, the second sub-pixel SP2, and the third sub-pixel SP3 can each emit red, green, and blue, but the present disclosure is not limited thereto. In some embodiments, the first sub-pixel SP1, the second sub-pixel SP2, and the third sub-pixel SP3 can have the same area and / or shape from each other, but the present disclosure is not limited thereto. In other embodiments, the first sub-pixel SP1, the second sub-pixel SP2, and the third sub-pixel SP3 can have different areas from each other. For example, the area of the second sub-pixel SP2 can be greater than the area of the first sub-pixel SP1, and the area of the second sub-pixel SP2 can be greater than the area of the third sub-pixel SP3.

[0050] In the present embodiment, at least one of the plurality of opening regions OR of the light-blocking 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, for example, and the second edges E2 extend substantially in the direction X, for example, but not limited thereto. In the present embodiment, the first edges E1 and the second edges E2 are substantially perpendicular to each other. Figure 3A Taking the first opening region OR1 shown as an example, one of the two first edges E1 has a first length L1, for example, and the distance between the two first edges E1 is a first distance D1, for example. In the present embodiment, the first length L1 is less than the first distance D1. Based on this, in the present embodiment, each sub-pixel in the plurality of pixels P included by the display panel 100 is arranged vertically in the direction Y. By arranging each sub-pixel in the plurality of pixels P included by the display panel 100 vertically in the direction Y, the peep-proof capability of the display device 10a can be increased, and the reason for this will be described in detail in the embodiments below.

[0051] In the present 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 can be 10 μm, 25 μm, 35 μm, 50 μm, 70 μm, or other values in the interval of 10 μm to 70 μm.

[0052] In the present 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 can be 30 μm, 80 μm, 120 μm, 150 μm, 210 μm, or other values in the interval of 30 μm to 210 μm.

[0053] In detail, please refer to Figure 4 , Figure 4A graph showing the relationship between the viewing angle and the luminance ratio of the display device 10a, wherein the luminance ratio is defined as the percentage of the luminance of the display device 10a when viewed or measured at a certain viewing angle in the privacy mode to the luminance when viewed or measured at the normal viewing angle (direction Z). For example, the viewing angle can be represented as a negative value when viewed or measured at a position left of the normal viewing angle (direction -X) of the display device 10a, and the viewing angle can be represented as a positive value when viewed or measured at a position right of the normal viewing angle (direction X) of the display device 10a. In this embodiment, taking the viewing or measurement at a position left of the normal viewing angle (direction -X) of the display device 10a as an example, the viewing angle at the minimum luminance of the display device 10a is about 48°, the luminance ratio is less than 1% at a viewing angle of about 33° to about 64°, and the luminance ratio is less than 0.5% at a viewing angle of about 36° to about 57°, but the present disclosure is not limited thereto. The main reason is that each sub-pixel in the plurality of pixels P is arranged vertically, and each of the plurality of pixels P corresponds to only two portions of the light shielding layer BM in the direction X, so each of the plurality of pixels P has only one diffraction source in the direction X, which can reduce the scattering phenomenon caused by the diffraction of the plurality of pixels P, thereby increasing the privacy ability of the display device 10a.

[0054] Please refer to Figure 3B In this embodiment, the display panel 100 can further include a plurality of transistors T, a plurality of scan lines SL, a plurality of data lines DL, and a first electrode 400a.

[0055] One of the plurality of transistors T includes, for example, a gate G, a source S, a drain D, and a semiconductor layer SE disposed, for example, between the gate G and the source S and the drain D, although the present disclosure is not limited thereto. The material of the semiconductor layer SE can include, for example, low temperature polysilicon (LTPS), metal oxide, amorphous silicon (a-Si), or a combination thereof, although the present disclosure is not limited thereto. For example, the material of the semiconductor layer SE can 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 a combination of the foregoing. The material of the semiconductor layer SE can also include, 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 including polycyclic aromatic compounds, or a combination of the foregoing. In the present embodiment, the material of the semiconductor layer SE is amorphous silicon, although the present disclosure is not limited thereto. The gate G at least partially overlaps the semiconductor layer SE, for example. The source S and the drain D are separated from each other, for example, and cover at least a portion of the semiconductor layer SE and are electrically connected to the semiconductor layer SE.

[0056] From a macroscopic perspective, the plurality of scan lines SL extend substantially in a direction X, for example, and the plurality of data lines DL extend in a direction Y, for example, which is perpendicular to the direction X. In the present embodiment, two adjacent scan lines SL and two adjacent data lines DL can define one sub-pixel SP of the display device 10a, although the present disclosure is not limited thereto. The gate G of one of the plurality of transistors T can be electrically connected to a corresponding scan line SL to receive a corresponding scan signal, for example, and the source S of one of the plurality of transistors T can be electrically connected to a corresponding data line DL to receive a corresponding data signal, for example. In some embodiments, the materials of the scan lines SL and the data lines DL can 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 foregoing, although the present disclosure is not limited thereto. The scan lines SL and the data lines DL can include the same or different materials, although the present disclosure is not limited thereto.

[0057] 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.

[0058] 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 region of the fingers corresponding to different pixels or sub-pixels has different extending directions, but is not limited thereto. For example, the angle α between the extension direction of the strip 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 strip region 412), and the angle α between the extension direction of the strip 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 strip region 412). In some embodiments, the absolute value of the angle α between the extension direction of the strip 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. Figure 3C Based on Figure 3A An enlarged schematic diagram of another embodiment. It should be noted that... Figure 3C The embodiments can be used Figure 3B The component references and partial contents of the embodiments are as follows, wherein the same or similar references are used to represent the same or similar components, and the description of the same technical content is omitted.

[0059] Please refer to Figure 3C The main difference between the first electrode 400b in 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.

[0060] In detail, the second edge E2 of the opening region OR of the light blocking layer BM, for example, presents a V-shaped shape in the direction Z, so that the two strip regions 412 corresponding to the same sub-pixel SP can have different extension directions from each other, and the bending region 414 is used to connect one end of each of the two strip regions 412 to form the corresponding finger portion 410b. In some embodiments, each finger portion 410b corresponding to each sub-pixel includes two strip regions 412 having different extension directions and a bending region 414 between the two strip regions, and different sub-pixels can correspond to the same structure of the finger portion 410b, but the present disclosure is not limited thereto.

[0061] In Figure 3B and Figure 3C embodiments, when the display panel 100 is not applied with a voltage, the long axis direction of the liquid crystal molecules (not shown in the figure) is substantially parallel to the direction X, and when the display panel 100 is applied with a voltage, the liquid crystal molecules can be deflected according to the direction of the electric field to allow light to pass through and present an image. The direction of the electric field can be substantially parallel to the arrangement direction of the plurality of finger portions 410a (the plurality of finger portions 410b) of the first electrode 400a (the first electrode 400b). In the present embodiment, the direction of the electric field is substantially the direction Y, but the present disclosure is not limited thereto.

[0062] Figure 5A FIG. 1 shows a schematic view of a vehicle display including a display device of an embodiment of the present disclosure, Figure 5B FIG. 2 shows a schematic view of an embodiment of a liquid crystal director direction of a viewing angle control panel in a vehicle display, and Figure 5C FIG. 3 shows a schematic view of another embodiment of a liquid crystal director direction of a viewing angle control panel in a vehicle display.

[0063] Please refer to Figure 5A , Figure 5A FIG. 1 shows a vehicle display 1 applied to a left-hand drive vehicle, which includes a display device 10a of an embodiment of the present disclosure and another display device 1000, wherein the display device 1000 is disposed on the left side of the display device 10a of the present embodiment, but the present disclosure is not limited thereto. The display device 10a of the present embodiment, for example, includes a co-driver display disposed in front of a co-pilot CP, and the display device 1000, for example, includes a center information display disposed in front of a front passenger FP and an instrument cluster, but the present disclosure is not limited thereto. In some embodiments, the viewing angle control panel 200 in the display device 10a can have a liquid crystal director direction 200D1 or a liquid crystal director direction 200D1’ as shown in FIG. 2. Figure 5B Please refer to Figure 5BIn 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°.

[0064] In other embodiments, the vehicle display 1 can be applied to right-hand drive vehicles. That is, the display device 1000 is located to the right of the display device 10a in this embodiment. Please refer to... Figure 5C In some embodiments, the viewing angle control panel 200 in the display device 10a may have, for example: Figure 5C The liquid crystal pointing direction 200D2 or liquid crystal pointing direction 200D2' is shown. 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 angle θb' between the liquid crystal pointing direction 200D2' and the extending direction of the first edge E1 of the opening region OR is, for example, between 155° and 180°, or between 165° and 180°.

[0065] In the vehicle display 1 shown in the above embodiment, by designing the relationship between the included angles of the liquid crystal director direction 200D1, the liquid crystal director direction 200D1', the liquid crystal director direction 200D2 and the liquid crystal director direction 200D2' and the direction Y (the extension direction of the first edge E1 of the opening region OR), the privacy ability of the vehicle display 1 at a relatively small viewing angle can be improved, so as to reduce the possibility that the picture displayed by the display device 10a affects the driver.

[0066] Figure 6 A schematic exploded view of a display device according to a second embodiment of the present disclosure is shown in FIG. 2B. It should be noted that, Figure 6 The elements and parts of the embodiment of FIG. 2B can be used in Figure 1 the embodiment of FIG. 2B, in which the same or similar reference numerals are used to denote the same or similar elements, and the description of the same technical content is omitted.

[0067] Please refer to Figure 6 The main difference between the display device 10b of the present embodiment and the display device 10a described above is that the second viewing angle control panel 220 is disposed between the display panel 100 and the first viewing angle control panel 210.

[0068] In the present embodiment, the display panel 100 is away from the user relative to the first viewing angle control panel 210 and the second viewing angle control panel 220. That is, the first viewing angle control panel 210 and the second viewing angle control panel 220 are disposed above the display panel 100. In some embodiments, the first viewing angle control panel 210 and the second viewing angle control panel 220 can have different phase delays. For example, the phase delay of the first viewing angle control panel 210 can be greater than that of the second viewing angle control panel 220, so as to improve the privacy ability of the first viewing angle control panel 210 at a relatively small viewing angle, but the present disclosure is not limited thereto.

[0069] In the present 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 axis 330A of the third polarizing plate 330 and the absorption axis 340A of the fourth polarizing plate 340 are parallel to the absorption axis 310A of the first polarizing plate 310, for example. In other words, 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 X, but the present disclosure is not limited thereto.

[0070] In other embodiments, the display panel 100 can be disposed between the first view angle control panel 210 and the second view angle control panel 220. The first view angle control panel 210 is closer to the user relative to the second view angle control panel 220. Based on this, in some embodiments, the first view angle control panel 210 and the second view angle control panel 220 can have different phase delays. In detail, the phase delay of the first view angle control panel 210 can be greater than the second view angle control panel 220, for example, to improve the privacy ability of the first view angle control panel 210 at a relatively small viewing angle, but the present disclosure is not limited thereto.

[0071] Figure 7 For another embodiment of the region R according to Figure 1 , a partial enlarged top view schematic diagram of another embodiment of the region R is shown. It should be noted that Figure 7 , the elements and parts of the embodiment of Figure 3B may be used, wherein the same or similar reference numerals are used to represent the same or similar elements, and the description of the same technical content is omitted.

[0072] Please refer to Figure 7 , in the present embodiment, the display panel 100 can include a plurality of transistors T, a plurality of scan lines SL, a plurality of data lines DL, and a first electrode 400c.

[0073] One of the plurality of transistors T, for example, includes a gate G, a source S, a drain D, and a semiconductor layer SE. The remaining descriptions of the gate G, the source S, the drain D, and the semiconductor layer SE can be referred to the above-mentioned embodiments, which will not be repeated here.

[0074] From a macroscopic point of view, the plurality of scan lines SL, for example, extends substantially in the direction X, the plurality of data lines DL, for example, extends in the direction Y, and the direction X and the direction Y are perpendicular (or staggered). In the present embodiment, two adjacent scan lines SL and two adjacent data lines DL can define a sub-pixel SP of the display device 10c, but the present disclosure is not limited thereto. The remaining descriptions of the scan lines SL and the data lines DL can be referred to the above-mentioned embodiments, which will not be repeated here.

[0075] In the present embodiment, the first electrode 400c can serve as a common electrode, but the present disclosure is not limited thereto. In other embodiments, the first electrode 400c can serve as a pixel electrode. The material of the first electrode 400c can refer to the above-mentioned embodiments, which will not be repeated here. In the present embodiment, the first electrode 400c has a plurality of finger portions 410c. The plurality of finger portions 410c are arranged, for example, along the direction Y. In some embodiments, the plurality of finger portions 410c corresponding to the same sub-pixel SP can include a first finger portion 410c1 and a second finger portion 410c2, wherein the angle a between the extension direction of the strip region 412c1 in the first finger portion 410c1 and the direction X can be between 3° and 15° (calculated from the direction X to the extension direction of the strip region 412c1 along the counterclockwise direction), and the angle a between the extension direction of the strip region 412c2 in the second finger portion 410c2 and the direction X can be between -3° and -15° (calculated from the direction X to the extension direction of the strip region 412c2 along the clockwise direction). In another aspect, the strip regions 412c1 and 412c2 of the first finger portion 410c1 and the second finger portion 410c2 corresponding to the same sub-pixel SP can have different extension directions in the XY plane. In some embodiments, the plurality of finger portions 410c corresponding to each sub-pixel SP all include at least two strip regions 412c1, 412c2 having different extension directions, and different sub-pixels SP can correspond to the same finger portion 410c structure, but the present disclosure is not limited thereto.

[0076] In the present 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 direction Y, and the two second edges E2 correspond to each other and extend along the direction X. 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 the present embodiment, the first distance D1 can be the length of the second edge E2.

[0077] In the present embodiment, when the display panel 100 is not applied with a voltage, the long axis direction of the liquid crystal molecules (not shown in the figure) is substantially parallel to the direction X, and when the display panel 100 is applied with a voltage, the liquid crystal molecules can be deflected according to the direction of the electric field, so as to allow light to pass through and present an image. The direction of the electric field can be substantially parallel to the arrangement direction of the plurality of finger portions 410c of the first electrode 400c. In the present embodiment, the direction of the electric field is substantially the direction Y, but the present disclosure is not limited thereto.

[0078] Figure 8 The present disclosure is a schematic diagram of the display device of the third embodiment. It should be noted that, Figure 8 The embodiments of the present disclosure can be used Figure 1The element numbers and some contents of the embodiments are partially the same, in which the same or similar numbers are used to represent the same or similar elements, and the description of the same technical contents is omitted.

[0079] Please refer to Figure 8 The display device 10c of the present embodiment mainly differs from the display device 10a described above in that the display device 10c further comprises a backlight module 500. The backlight module 500 of the present embodiment can also be combined with the display device 10b described above. Figure 6

[0080] In the present embodiment, the backlight module 500 comprises a light source 510 and a plurality of optical films. The optical films can be single optical films or composite optical films. As shown in FIG. 5, the plurality of optical films comprises a diffusion sheet 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, which are stacked in the direction Z in the order of the diffusion sheet 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, but are not limited thereto. The light source 510 can be disposed below or beside the diffusion sheet 520, but is not limited thereto. Figure 8

[0081] The light source 510 is, for example, a component in the backlight module 500 for providing 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 in the light guide plate, for example, and provided to the display panel 100 and / or the viewing angle control panel 200. In some embodiments, the light source 510 can comprise a plurality of light emitting diodes, in which the driving mode of the light emitting diodes can comprise passive matrix addressing, active matrix addressing, or control by an integrated circuit, but is not limited thereto.

[0082] ​​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 light utilization efficiency. 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 these 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.

[0083] In some embodiments, the polarization direction of the third brightness enhancement film 550 (or, the transmission axis of the third brightness enhancement film 550) is different from the polarization direction of the adjacent polarizer (which may be the transmission axis of the fourth polarizer 340 or, as shown in the figure). Figure 6 The absolute value of the angle between the second polarizing plate 320 (shown as a transmission axis) 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.

[0084] In the present 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, and the absolute value of the included angle θ3 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 vehicle, the included angle θ3 can be greater than or equal to -90 degrees and less than or equal to -80 degrees (calculated from the direction Y to the direction D1 along the clockwise direction), but is not limited thereto. In some embodiments, when the display device is applied to a right-hand vehicle, the included angle θ3 can be greater than or equal to 80 degrees and less than or equal to 90 degrees (calculated from the direction D1 to the direction Y along the counterclockwise direction), but is not limited thereto. In another aspect, in the present 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 included angle θ4, and the absolute value of the included angle θ4 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 vehicle, the included angle θ4 is greater than or equal to 0 degrees and less than or equal to 10 degrees (calculated from the direction X to the direction D1 along the counterclockwise direction), but is not limited thereto. In some embodiments, when the display device is applied to a right-hand vehicle, the included angle θ4 is greater than or equal to -10 degrees and less than or equal to 0 degrees (calculated from the direction X to the direction D1 along the clockwise direction), but is not limited thereto. Through the above design, the possibility of the display device 10c generating Moiré patterns can be reduced, thereby improving the display quality of the display device 10c. In some embodiments, when the extension direction (direction D1) of the plurality of light-shielding patterns 562 of the light control film 560 and the direction X have an included angle θ4 whose absolute value is greater than or equal to 0 degrees and less than or equal to 10 degrees, it is beneficial to arrange the display device under the windshield, but is not limited thereto. Through this design, the opportunity of the light of the display device being reflected to the driver's eyes after being projected to the rear of the windshield can be reduced, thereby improving the driving safety.

[0085] In the present embodiment, the first brightness enhancement film 530 and the second brightness enhancement film 540 can each include a plurality of microstructures 532 and a plurality of microstructures 542, wherein the plurality of microstructures 532 extend along a direction D3, the plurality of microstructures 542 extend along a direction D2, and the direction D3 is perpendicular to the direction D2. In the present 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 extending direction (the direction D2) of the plurality of microstructures 542 of the second brightness enhancement film 540 and the extending direction (the 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 the direction D1 to the direction D2 in the counterclockwise direction or the clockwise direction), and by the above design, it is beneficial for the display device 10c to provide a wider light type.

[0086] Figure 9 The relationship curve between the viewing angle and the luminance ratio of the display device of an embodiment of the present disclosure in the E-mode and the O-mode. Figure 9 Each shows the luminance ratio of a display panel with the E-mode and a display panel with the O-mode when viewed at different viewing angles under the condition of no voltage applied and voltage applied, wherein the luminance ratio is defined as the percentage of the luminance of the display device when viewed or measured at a certain viewing angle in the privacy mode to the luminance when viewed or measured at the normal viewing angle.

[0087] Please refer to Figure 9 Compared with the display panel with the O-mode, it can be seen that the difference between the luminance ratio before the voltage is applied and the luminance ratio after the voltage is applied of the display panel with the E-mode is smaller, so in the privacy mode, the display panel with the E-mode is less likely to be affected or fail in the privacy ability due to the voltage change or switching of the display panel.

[0088] In detail, in the display panel with the E-mode, the absorption axis direction of the polarizing plate below the display panel is perpendicular to the long axis direction of the liquid crystal molecules of the display panel without voltage applied (or the absorption axis direction of the polarizing plate below the display panel is parallel to the electric field direction after the voltage is applied). For example, if the absorption axis direction of the polarizing plate below the display panel is the vertical direction, then the long axis direction of the liquid crystal molecules of the display panel without voltage applied is the horizontal direction, and the electric field direction after the voltage is applied is the vertical direction.

[0089] Based on this, when 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 horizontal scattering effect of light passing through a display panel with an E-mode architecture can be reduced, thereby increasing the horizontal privacy protection capability of the display device.

[0090] 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... Figure 3A , Figure 3B , Figure 3C and Figure 7 The display panel 100 is shown. Based on the above, the display devices 10a, 10b, and 10c of this embodiment have better privacy protection capabilities in privacy mode.

[0091] In summary, in the display devices provided in some embodiments of this disclosure, by arranging the sub-pixels of 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 disclosed display device. 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 disclosed display device at relatively small viewing angles can be improved, reducing the possibility of affecting driving when the disclosed display device is applied to an automotive display.

[0092] Furthermore, in the display device provided in some embodiments disclosed herein, by having the display device of this embodiment have a display panel with an E-mode architecture, the probability of privacy protection being affected or failing in privacy mode can be further reduced.

[0093] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A display device, characterized by comprising: A display device comprising: a display panel comprising a light shielding layer having a plurality of open regions, wherein at least one of the plurality of open regions has two first edges corresponding to each other and extending along a first direction; and a viewing angle control panel overlapping the display panel and having a liquid crystal director direction, wherein an included angle between the liquid crystal director direction and the first direction is between -25° to 25° or 155° to 205°, wherein one of the two first edges has a first length, a distance between the two first edges is a first distance, and the first length is less than the first distance.

2. The display device of claim 1, wherein the display panel further comprises: a data line extending along a first direction; a scan line interleaved with the data line and extending along a second direction; and a first electrode having a plurality of fingers arranged along the first direction, at least one of the plurality of fingers having a strip region, and the strip region being parallel to at least one of the plurality of scan lines.

3. The display device of claim 1, wherein the display panel further comprises a first polarizing plate disposed on a surface opposite to an outgoing light 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 of claim 3, wherein the display panel further comprises liquid crystal molecules, wherein a long axis direction of the liquid crystal molecules when no voltage is applied is perpendicular to the first absorption axis.

5. The display device of claim 1, for being disposed in a left-hand traffic vehicle, wherein the included angle between the liquid crystal director direction and the first direction is between -25° to 0° or 180° to 205°.

6. The display device of claim 1, for being disposed in a right-hand traffic vehicle, wherein the included angle between the liquid crystal director direction and the first direction is between 0° to 25° or 155° to 180°. A display device comprising: a display panel comprising:

7. A display device, characterized by comprising: a data line extending along a first direction; a scan line interleaved with the data line and extending along a second direction; and a first electrode having a plurality of fingers and the plurality of fingers arranged along the first direction; a first polarizing plate disposed on a surface opposite to an outgoing light surface of the display panel and having a first absorption axis; and a viewing angle control panel overlapping 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 a long axis direction of the liquid crystal molecules when no voltage is applied is perpendicular to the first absorption axis.

9. The display device of claim 7, wherein a direction of an electric field 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 comprises a light control film, wherein the light control film has a plurality of light blocking patterns spaced apart from each other, and the plurality of light blocking patterns extend along a third direction, the third direction is different from the first direction, and the third direction is different from the second direction.

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

12. The display device of claim 7, wherein at least one of the plurality of fingers has a strip region, and an absolute value of an included angle between an 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 region, a second strip region, and a bending region, wherein the bending region is located between the first strip region and the second strip region, and an extension direction of the first strip region is different from an extension direction of the second strip region.

Images