TWI707334B - Display device - Google Patents

Abstract

A display device includes a display unit, a first light adjusting area, a second light adjusting area, a third light adjusting area, a tilt sensing unit and a processing unit. The display unit has a display surface. The first light adjusting area is disposed with respect to a first side of the display surface. The second light adjusting area is disposed with respect to a second side of the display surface opposite to the first side. The third light adjusting area is disposed with respect to a third side of the display surface between the first side and the second side. The tilt sensing unit senses a tilt angle of the display unit. The processing unit selectively enables at least one of the first light adjusting area, the second light adjusting area and the third light adjusting area according to the tilt angle.

Description

Display device

The present invention relates to a display device, in particular to a display device capable of enabling anti-peeping effects according to the tilt angle of the display unit.

Currently, display devices (for example, computer screens, mobile phone screens) have been widely used. When the user uses the display device in an open environment (for example, an office, a coffee shop, etc.), people around the user may peep at the content on the display device, which may infringe the user's privacy. Therefore, how to effectively prevent the content on the display device from being peeped by others has become a major design issue.

One of the objectives of the present invention is to provide a display device capable of enabling anti-peeping effects according to the tilt angle of the display unit to solve the above-mentioned problems.

According to an embodiment, the display device of the present invention includes a display unit, a first dimming zone, a second dimming zone, a third dimming zone, a tilt sensing unit, and a processing unit. The display unit has a display surface. The first dimming area is arranged corresponding to a first side of the display surface. The second dimming area is arranged corresponding to a second side of the display surface, wherein the second side is opposite to the first side. The third dimming area is arranged corresponding to a third side of the display surface, wherein the third side is located between the first side and the second side. The tilt sensing unit senses the tilt angle of one of the display units. The processing unit is coupled to the display unit, the first dimming area, the second dimming area, the third dimming area, and the tilt sensing unit. The processing unit selectively enables at least one of the first dimming zone, the second dimming zone and the third dimming zone according to the tilt angle.

In summary, the present invention uses the tilt sensing unit to sense the tilt angle of the display unit. Then, the processing unit can enable the corresponding dimming area according to the tilt angle of the display unit. When the dimming zone is enabled, the dimming zone will present an anti-peeping effect (for example, a foggy surface), so that others cannot peek at the content covered by the dimming zone.

The advantages and spirit of the present invention can be further understood from the following detailed description of the invention and the accompanying drawings.

1, 1': display device

10: Display unit

12a: The first dimming zone

12b: Second dimming zone

12c: third dimming zone

12d: Fourth dimming zone

14: Tilt sensing unit

16: processing unit

18: substrate

18a: First substrate

18b: second substrate

100: display surface

102a: first side

102b: second side

102c: third side

102d: Fourth side

HL: horizontal axis

FIG. 1 is a schematic diagram of a display device according to an embodiment of the invention.

Fig. 2 is a functional block diagram of the display device 1 in Fig. 1.

FIG. 3 is a schematic diagram of the first dimming area, the second dimming area, and the third dimming area in FIG. 1 being located on the first substrate and the second substrate, respectively.

Figure 4 is a schematic diagram of the first dimming zone and the second dimming zone in Figure 1 being enabled.

FIG. 5 is a schematic diagram of the first dimming area, the second dimming area, and the third dimming area in FIG. 1 being located on a substrate.

FIG. 6 is a schematic diagram of a display device according to another embodiment of the invention.

Fig. 7 is a functional block diagram of the display device in Fig. 6.

Fig. 8 is a schematic diagram of the first dimming zone, the second dimming zone, the third dimming zone, and the fourth dimming zone in Fig. 6 respectively located on the first substrate and the second substrate.

FIG. 9 is a schematic diagram of the first dimming zone and the second dimming zone in FIG. 6 being enabled.

FIG. 10 is a schematic diagram of the display unit in FIG. 6 in the vertical display position and the third dimming zone and the fourth dimming zone are enabled.

FIG. 11 is a schematic diagram of the first dimming area, the second dimming area, the third dimming area, and the fourth dimming area in FIG. 6 being located on a substrate.

Please refer to Figures 1 to 4. Figure 1 is a schematic diagram of a display device 1 according to an embodiment of the present invention, Figure 2 is a functional block diagram of the display device 1 in Figure 1, and Figure 3 is a first The first dimming zone 12a, the second dimming zone 12b, and the third dimming zone 12c are respectively located on the first substrate 18a and the second substrate 18b in the figure. Figure 4 is the first dimming zone in Figure 1. A schematic diagram of the light zone 12a and the second dimming zone 12b being enabled.

As shown in FIGS. 1 and 2, the display device 1 includes a display unit 10, a first dimming area 12a, a second dimming area 12b, a third dimming area 12c, and a tilt sensing unit 14. And a processing unit 16, wherein the processing unit 16 is coupled to the display unit 10, the first dimming area 12 a, the second dimming area 12 b, the third dimming area 12 c, and the tilt sensing unit 14. In this embodiment, the display device 1 can be a computer screen, but it is not limited to this. In another embodiment, the display device 1 may also be a mobile phone screen or other display, depending on the actual application. In this embodiment, the first dimming area 12a, the second dimming area 12b, and the third dimming area 12c may be polymer dispersed liquid crystal (PDLC), but it is not limited thereto. In another embodiment, the first dimming zone 12a, the second dimming zone 12b, and the third dimming zone 12c can also be other structures with a dimming function to present an anti-peeping effect, depending on the actual application. In this embodiment, the display unit 10 can be a liquid crystal display panel, a plasma display panel, an organic light emitting diode display panel or other display panels; the tilt sensing unit 14 can be a tilt sensor; the processing unit 16 can be a Processor or controller with signal processing function. Generally speaking, the display device 1 will also be provided with necessary software and hardware components during operation, such as input/output ports, application programs, circuit boards, power supplies, communication modules, etc., depending on the actual application.

As shown in FIG. 1, the display unit 10 has a display surface 100. The first dimming area 12a is corresponding to a first side 102a of the display surface 100, the second dimming area 12b is corresponding to a second side 102b of the display surface 100, and the third dimming area 12c is corresponding to a second side 102b of the display surface 100. A third side 102c is provided, wherein the second side 102b is opposite to the first side 102a, and the third side 102c is located between the first side 102a and the second side 102b. When the display unit 10 is in the horizontal display position shown in Figure 1, the first dimming area 12a and the second dimming The light zone 12b is located on a horizontal axis HL. From the perspective shown in FIG. 1, the first dimming area 12 a and the second dimming area 12 b are located on the left and right sides of the display surface 100, and the third dimming area 12 c is located on the upper side of the display surface 100.

As shown in Figure 3, the first dimming area 12a and the second dimming area 12b can be located on a first substrate 18a, and the third dimming area 12c can be located on a second substrate 18b, wherein the first substrate 18a Both the second substrate 18b and the second substrate 18b are transparent substrates. In the present invention, the first substrate 18a and the second substrate 18b can be stacked on the display surface 100, so that the first dimming area 12a corresponds to the first side 102a of the display surface 100, and the second dimming area 12b corresponds to the display surface 100. The second side 102b is disposed, and the third dimming area 12c is disposed corresponding to the third side 102c of the display surface 100.

The tilt sensing unit 14 is used to sense a tilt angle of the display unit 10. When the display unit 10 is in the horizontal display position shown in Figure 1, the tilt angle of the display unit 10 can be defined as 0 degrees or 180 degrees. In this embodiment, the present invention can install an anti-peeping application on the display device 1 or a host connected to the display device 1 (not shown in the figure). When the user starts the privacy application, the processing unit 16 will selectively enable the first dimming zone 12a, the second dimming zone 12b, and the third dimming zone according to the tilt angle sensed by the tilt sensing unit 14. At least one of the areas 12c can prevent peeping.

For example, when the display unit 10 is in the horizontal display position as shown in FIG. 1, the user usually wants to prevent others from peeping at the content on the left and right sides of the display surface 100. At this time, the first dimming area 12a and the second dimming area 12b are located on the left and right sides of the display surface 100. Therefore, when the processing unit 16 determines that the display unit 10 is in the horizontal display position shown in FIG. 1 according to the tilt angle sensed by the tilt sensing unit 14, the processing unit 16 can enable the first dimming zone 12a and the second dimming zone 12a. The light zone 12b, and the third dimming zone 12c is disabled. When the first dimming zone 12a and the second dimming zone 12b are enabled, the first dimming zone 12a and the second dimming zone 12b will present the anti-peeping effect shown in Figure 4 (for example, a fog surface) , So that others cannot peek at the content covered by the first dimming area 12a and the second dimming area 12b. In addition, when the third dimming area 12c is disabled, the third dimming area 12c will remain transparent.

In addition, when the display unit 10 is in the horizontal display position as shown in Figure 1, the user can also enable the first dimming zone 12a, the second dimming zone 12b, and the third dimming zone at the same time through the privacy application settings. 12c, or enable any combination of the first dimming area 12a, the second dimming area 12b, and the third dimming area 12c.

Please refer to FIG. 5. FIG. 5 is a schematic diagram of the first dimming area 12 a, the second dimming area 12 b and the third dimming area 12 c in FIG. 1 being located on a substrate 18. As shown in FIG. 5, the first dimming area 12a, the second dimming area 12b, and the third dimming area 12c may be located on the same substrate 18, wherein the substrate 18 is a transparent substrate. In the present invention, the substrate 18 can be disposed on the display surface 100, so that the first dimming area 12a is disposed corresponding to the first side 102a of the display surface 100, and the second dimming area 12b is disposed corresponding to the second side 102b of the display surface 100. And the third dimming area 12c is disposed corresponding to the third side 102c of the display surface 100.

Therefore, according to the embodiments shown in FIGS. 3 and 5, the present invention can arrange the first dimming area 12a, the second dimming area 12b, and the third dimming area 12c on different substrates 18a, 18b or the same substrate. 18, depending on the actual application.

Please refer to FIGS. 6-10. FIG. 6 is a schematic diagram of a display device 1'according to another embodiment of the present invention, FIG. 7 is a functional block diagram of the display device 1'in FIG. 6, and FIG. 8 The first dimming area 12a, the second dimming area 12b, the third dimming area 12c, and the fourth dimming area 12d are respectively located on the first substrate 18a and the second substrate 18b in Figure 6. The ninth The figure is a schematic diagram showing that the first dimming area 12a and the second dimming area 12b in Figure 6 are enabled, and Figure 10 is the display unit 10 in Figure 6 in the vertical display position and the third dimming area 12c and A schematic diagram of the fourth dimming zone 12d being enabled.

The main difference between the display device 1'and the aforementioned display device 1 is that the display device 1'further includes a fourth dimming area 12d, in which the processing unit 16 is also coupled to the fourth dimming area 12d as shown in FIG. 6 and As shown in Figure 7. The fourth dimming area 12d is disposed corresponding to a fourth side 102d of the display surface 100, wherein the fourth side 102d is opposite to the third side 102c. In this embodiment, the fourth dimming region 12d can also be a polymer dispersed liquid crystal (PDLC), but it is not limited thereto. In another embodiment, the fourth dimming area 12d can also be other structures with dimming function to present anti-peeping effects, depending on the actual application. set. It should be noted that the elements with the same reference numbers shown in Figures 6-10 and Figures 1-4 have roughly the same functional principles and structural configurations, and will not be repeated here.

In this embodiment, the user can rotate the display unit 10 so that the display unit 10 is in the horizontal display position shown in FIG. 6 or the vertical display position shown in FIG. 10. When the display unit 10 is in the horizontal display position shown in FIG. 6, the first dimming area 12a and the second dimming area 12b are located on the horizontal axis HL. From the perspective shown in Figure 6, the first dimming area 12a and the second dimming area 12b are located on the left and right sides of the display surface 100, and the third dimming area 12c and the fourth dimming area 12d are located at The upper and lower sides of the display surface 100 are displayed. Conversely, when the display unit 10 is in the vertical display position shown in FIG. 10, the third dimming area 12c and the fourth dimming area 12d are located on the horizontal axis HL. From the perspective shown in Figure 10, the third dimming area 12c and the fourth dimming area 12d are located on the left and right sides of the display surface 100, and the first dimming area 12a and the second dimming area 12b are located at The upper and lower sides of the display surface 100 are displayed.

The tilt sensing unit 14 is used to sense a tilt angle of the display unit 10. When the display unit 10 is in the horizontal display position shown in FIG. 6, the tilt angle of the display unit 10 can be defined as 0 degrees or 180 degrees. When the display unit 10 is in the vertical display position shown in FIG. 10, the tilt angle of the display unit 10 can be defined as 90 degrees or 270 degrees. In this embodiment, the present invention can install an anti-peep application program on the display device 1'or a host connected to the display device 1'(not shown in the figure). When the user starts the privacy application, the processing unit 16 will selectively enable the first dimming zone 12a, the second dimming zone 12b, and the third dimming zone according to the tilt angle sensed by the tilt sensing unit 14. At least one of the area 12c and the fourth dimming area 12d can prevent peeping.

For example, when the display unit 10 is in the horizontal display position as shown in FIG. 6, the user usually wants to prevent others from peeping at the content on the left and right sides of the display surface 100. At this time, the first dimming area 12a and the second dimming area 12b are located on the left and right sides of the display surface 100. Therefore, when the processing unit 16 determines that the display unit 10 is in the horizontal display position shown in FIG. 6 according to the tilt angle sensed by the tilt sensing unit 14, the processing unit 16 can enable the first dimming zone 12a and the second dimming zone 12a. Light zone 12b, and disable the third dimming zone 12c and the first Four dimming zone 12d. When the first dimming zone 12a and the second dimming zone 12b are enabled, the first dimming zone 12a and the second dimming zone 12b will present the anti-peeping effect shown in Figure 9 (for example, a foggy surface) , So that others cannot peek at the content covered by the first dimming area 12a and the second dimming area 12b. In addition, when the third dimming area 12c and the fourth dimming area 12d are disabled, the third dimming area 12c and the fourth dimming area 12d will remain transparent.

In addition, when the display unit 10 is in the horizontal display position shown in Fig. 6, the user can also enable the first dimming zone 12a, the second dimming zone 12b, and the third dimming zone at the same time through the privacy application settings. 12c and the fourth dimming area 12d, or enable any combination of the first dimming area 12a, the second dimming area 12b, the third dimming area 12c, and the fourth dimming area 12d.

On the other hand, when the display unit 10 is in the vertical display position shown in FIG. 10, the user usually wants to prevent others from peeping at the content on the left and right sides of the display surface 100. At this time, the third dimming area 12c and the fourth dimming area 12d are located on the left and right sides of the display surface 100. Therefore, when the processing unit 16 determines that the display unit 10 is in the vertical display position shown in FIG. 10 according to the tilt angle sensed by the tilt sensing unit 14, the processing unit 16 can enable the third dimming zone 12c and the fourth dimming The light zone 12d, and the first dimming zone 12a and the second dimming zone 12b are disabled. When the third dimming zone 12c and the fourth dimming zone 12d are enabled, the third dimming zone 12c and the fourth dimming zone 12d will present the anti-peeping effect shown in Figure 10 (for example, a fog surface) , So that others cannot peek at the content covered by the third dimming area 12c and the fourth dimming area 12d. In addition, when the first dimming area 12a and the second dimming area 12b are disabled, the first dimming area 12a and the second dimming area 12b will remain transparent.

In addition, when the display unit 10 is in the vertical display position as shown in Figure 10, the user can also enable the first dimming zone 12a, the second dimming zone 12b, and the third dimming zone simultaneously through the settings of the privacy application. 12c and the fourth dimming area 12d, or enable any combination of the first dimming area 12a, the second dimming area 12b, the third dimming area 12c, and the fourth dimming area 12d.

Please refer to FIG. 11. FIG. 11 is a schematic diagram of the first dimming area 12a, the second dimming area 12b, the third dimming area 12c, and the fourth dimming area 12d in FIG. 6 being located on a substrate 18. As shown in Figure 11, the first dimming area 12a, the second dimming area 12b, the third dimming area 12c, and the fourth dimming area 12d can be located on the same substrate 18. Above, the substrate 18 is a transparent substrate. In the present invention, the substrate 18 can be disposed on the display surface 100, so that the first dimming area 12a is disposed corresponding to the first side 102a of the display surface 100, and the second dimming area 12b is disposed corresponding to the second side 102b of the display surface 100. The third dimming area 12c is disposed corresponding to the third side 102c of the display surface 100, and the fourth dimming area 12d is disposed corresponding to the fourth side 102d of the display surface 100.

Therefore, according to the embodiments shown in Figures 8 and 11, the present invention can arrange the first dimming zone 12a, the second dimming zone 12b, the third dimming zone 12c, and the fourth dimming zone 12d at different locations. The substrate 18a, 18b or the same substrate 18, depending on the actual application.

It should be noted that the "enable" described in the present invention makes the dimming zone show an anti-peeping effect (for example, no power or controlled by a control signal), and the "disable" described in the present invention makes dimming The zone loses the anti-peep effect (for example, power-on or control by a control signal). In other words, the control method of the first dimming zone 12a, the second dimming zone 12b, the third dimming zone 12c, and/or the fourth dimming zone 12d can be determined according to actual applications.

In summary, the present invention uses the tilt sensing unit to sense the tilt angle of the display unit. Then, the processing unit can enable the corresponding dimming area according to the tilt angle of the display unit. When the dimming zone is enabled, the dimming zone will present an anti-peeping effect (for example, a foggy surface), so that others cannot peek at the content covered by the dimming zone. Thereby, no matter the display unit is in the horizontal display position or the vertical display position, the present invention can automatically enable the anti-peeping effect according to the tilt angle of the display unit to ensure the privacy of the user.

The foregoing descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made in accordance with the scope of the patent application of the present invention shall fall within the scope of the present invention.

1: display device

10: Display unit

12a: The first dimming zone

12b: Second dimming zone

12c: third dimming zone

100: display surface

102a: first side

102b: second side

102c: third side

HL: horizontal axis

Claims (14)

A display device comprising: a display unit having a display surface; a first dimming area provided corresponding to a first side of the display surface; a second dimming area corresponding to a second side of the display surface The second side is opposite to the first side; a third dimming area is provided corresponding to a third side of the display surface, and the third side is located between the first side and the second side. Between the sides; a tilt sensing unit that senses a tilt angle of the display unit; and a processing unit, coupled to the display unit, the first dimming zone, the second dimming zone, and the third The dimming zone and the tilt sensing unit, and the processing unit selectively enables at least one of the first dimming zone, the second dimming zone, and the third dimming zone according to the tilt angle; wherein, When the display unit is in a horizontal display position, the first dimming zone and the second dimming zone are located on a horizontal axis; when the processing unit determines that the display unit is in the horizontal display position according to the tilt angle, the The processing unit enables the first dimming zone and the second dimming zone, and disables the third dimming zone. The display device according to claim 1, wherein the first dimming zone, the second dimming zone and the third dimming zone are located on a substrate, and the substrate is disposed on the display surface. The display device according to claim 1, wherein the first dimming zone and the second dimming zone are located on a first substrate, the third dimming zone is located on a second substrate, and the first substrate and The second substrates are stacked on the display surface. The display device according to claim 1, wherein the display device includes a fourth dimming area disposed corresponding to a fourth side of the display surface, the fourth side is opposite to the third side, and the processing unit Coupled to the fourth dimming zone, the processing unit selectively enables the first At least one of a dimming zone, the second dimming zone, the third dimming zone, and the fourth dimming zone. The display device according to claim 4, wherein when the processing unit determines that the display unit is in the horizontal display position according to the tilt angle, the processing unit enables the first dimming zone and the second dimming zone, and The third dimming zone and the fourth dimming zone are disabled. The display device according to claim 5, wherein when the display unit is in a vertical display position, the third dimming zone and the fourth dimming zone are located on the horizontal axis; when the processing unit determines according to the tilt angle When the display unit is in the vertical display position, the processing unit enables the third dimming zone and the fourth dimming zone, and disables the first dimming zone and the second dimming zone. The display device according to claim 4, wherein the first dimming zone, the second dimming zone, the third dimming zone, and the fourth dimming zone are located on a substrate, and the substrate is disposed on the display Surface. The display device according to claim 4, wherein the first dimming zone and the second dimming zone are located on a first substrate, and the third dimming zone and the fourth dimming zone are located on a second substrate , And the first substrate and the second substrate are stacked on the display surface. A display device comprising: a display unit having a display surface; a first dimming area provided corresponding to a first side of the display surface; a second dimming area corresponding to a second side of the display surface The second side is opposite to the first side; a third dimming area is provided corresponding to a third side of the display surface, and the third side is located between the first side and the second side. Between the sides; a tilt sensing unit that senses a tilt angle of the display unit; and a processing unit, coupled to the display unit, the first dimming zone, the second dimming zone, and the third A dimming zone and the tilt sensing unit, the processing unit selectively enables at least one of the first dimming zone, the second dimming zone, and the third dimming zone according to the tilt angle; Wherein, the first dimming zone and the second dimming zone are located on a first substrate, the third dimming zone is located on a second substrate, and the first substrate and the second substrate are stacked on the display Surface. The display device according to claim 9, wherein when the display unit is in a horizontal display position, the first dimming zone and the second dimming zone are located on a horizontal axis; when the processing unit determines according to the tilt angle When the display unit is in the horizontal display position, the processing unit enables the first dimming zone and the second dimming zone, and disables the third dimming zone. The display device according to claim 9, wherein the display device includes a fourth dimming area, which is provided corresponding to a fourth side of the display surface, the fourth side is opposite to the third side, and the processing unit Coupled to the fourth dimming zone, the processing unit selectively enables the first dimming zone, the second dimming zone, the third dimming zone and the fourth dimming zone according to the inclination angle. At least one of them. The display device according to claim 11, wherein when the display unit is in a horizontal display position, the first dimming zone and the second dimming zone are located on a horizontal axis; when the processing unit determines according to the tilt angle When the display unit is in the horizontal display position, the processing unit enables the first dimming zone and the second dimming zone, and disables the third dimming zone and the fourth dimming zone. The display device according to claim 12, wherein when the display unit is in a vertical display position, the third dimming zone and the fourth dimming zone are located on the horizontal axis; when the processing unit determines according to the tilt angle When the display unit is in the vertical display position, the processing unit enables the third dimming zone and the fourth dimming zone, and disables the first dimming zone and the second dimming zone. The display device according to claim 11, wherein the third dimming zone and the fourth dimming zone are located on the second substrate.

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