Display device, method of driving the same, and electronic apparatus
By setting sub-pixels with different viewing angles on the display panel and adjusting the output grayscale value, the visibility problem of the boundary between the normal area and the private area of the display device is solved, achieving a smooth transition of the boundary and improving the display effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SAMSUNG DISPLAY CO LTD
- Filing Date
- 2025-10-17
- Publication Date
- 2026-05-29
Smart Images
Figure CN122116784A_ABST
Abstract
Description
Technical Field
[0001] The embodiments relate to display devices. More specifically, the embodiments relate to display devices for displaying images, methods for driving the display devices, and electronic devices including the display devices. Background Technology
[0002] The display device may include a display panel and a controller. The display panel may include pixels, and each of the pixels may include a subpixel. The controller may generate output image data including output grayscale values applied to the subpixels by rendering input image data including input grayscale values.
[0003] The display area on a display device may include a normal area for displaying images with a relatively wide viewing angle and a private area for displaying images with a relatively narrow viewing angle. The image displayed in the normal area can be seen from both the front and sides of the electronic device. The image displayed in the private area can be seen only from the front of the electronic device and may not be visible from the sides. Summary of the Invention
[0004] The embodiments provide a display device in which visibility at the boundary between a normal area and a private area is reduced, and an electronic device including the display device.
[0005] The embodiments provide a method for driving a display device to reduce visibility at the boundary between a normal area and a private area.
[0006] The display device in this embodiment includes: a display panel including a first pixel and a second pixel, the first pixel including a first sub-pixel having a first viewing angle, and the second pixel including a second sub-pixel having a second viewing angle different from the first viewing angle; and a controller that generates output image data including a plurality of output grayscale values applied to the first sub-pixel and the second sub-pixel of the display panel by rendering input image data including input grayscale values. The output grayscale values are applied only to the first sub-pixel in a first region among the first sub-pixels, the output grayscale values are applied only to the second sub-pixel in a second region among the second sub-pixels, and the output grayscale values are applied to the first sub-pixel and the second sub-pixel in a buffer region between the first and second regions. Furthermore, when the input grayscale values of the first and second sub-pixels are the same, the output grayscale values applied to the first and second sub-pixels in the buffer region are less than the output grayscale values applied to the first sub-pixel in the first region and the second sub-pixel in the second region.
[0007] In an embodiment, the output grayscale value applied to a first sub-pixel in a first region or to a first sub-pixel in a buffer region can be applied to all first sub-pixels included in first pixels that are close to (adjacent to) the first boundary between the first region and the buffer region, and the output grayscale value applied to a second sub-pixel in a second region or to a second sub-pixel in a buffer region can be applied to all second sub-pixels included in second pixels that are close to (adjacent to) the second boundary between the second region and the buffer region.
[0008] In an embodiment, the output grayscale values applied to the first and second sub-pixels disposed in the buffer area can be applied to all first sub-pixels included in the first pixel disposed between the first boundary and the second boundary in the first direction.
[0009] In an embodiment, the output grayscale values applied to the first and second sub-pixels disposed in the buffer area can be applied to all first sub-pixels included in the first pixel disposed between the first boundary and the second boundary in the second direction perpendicular to the first direction.
[0010] In an embodiment, the output grayscale values applied to the first and second sub-pixels disposed in the buffer area can be applied to all first sub-pixels included in the first pixel disposed between the first boundary and the second boundary in a third-direction orientation between the first direction and the second direction.
[0011] In an embodiment, when the input grayscale value of the first sub-pixel and the input grayscale value of the second sub-pixel are the same, the output grayscale value applied to the first sub-pixel in the first region and the output grayscale value applied to the second sub-pixel in the second region can decrease toward the buffer region.
[0012] In an embodiment, the output grayscale values applied to the first and second sub-pixels set in the buffer area may not be applied to some sub-pixels among all the first and second sub-pixels set in the buffer area.
[0013] In an embodiment, the output grayscale values applied to the first and second sub-pixels set in the buffer area can be applied to all the first and second sub-pixels set in the buffer area.
[0014] In an embodiment, each of the first pixel and the second pixel may include a red sub-pixel displaying red, two green sub-pixels displaying green, and a blue sub-pixel displaying blue.
[0015] The method for driving a display device in the embodiment includes: receiving input image data including input grayscale values; generating output image data including multiple output grayscale values applied to first sub-pixels and second sub-pixels by rendering the input image data such that the output grayscale values of a plurality of output grayscale values are applied only to first sub-pixels of a first sub-pixel of a display panel, including first sub-pixels in a first region of a first pixel having a first viewing angle, the output grayscale values of a plurality of output grayscale values are applied only to second sub-pixels of a second sub-pixel of a display panel, including second sub-pixels in a second region of a second pixel having a second viewing angle different from the first viewing angle, and the output grayscale values of a plurality of output grayscale values are applied to first sub-pixels and second sub-pixels in a buffer region between the first and second sub-pixels; and displaying an image based on the output image data. When the input grayscale values of the first sub-pixel and the second sub-pixel are the same as each other, the output grayscale values applied to the first sub-pixels and second sub-pixels disposed in the buffer region are less than the output grayscale values applied to the first sub-pixels disposed in the first region and the output grayscale values applied to the second sub-pixels disposed in the second region.
[0016] In an embodiment, the output grayscale value applied to a first sub-pixel in a first region or to a first sub-pixel in a buffer region can be applied to all first sub-pixels included in first pixels that are close to (adjacent to) the first boundary between the first region and the buffer region, and the output grayscale value applied to a second sub-pixel in a second region or to a second sub-pixel in a buffer region can be applied to all second sub-pixels included in second pixels that are close to (adjacent to) the second boundary between the second region and the buffer region.
[0017] In an embodiment, the output grayscale values applied to the first and second sub-pixels disposed in the buffer area can be applied to all first sub-pixels included in the first pixel disposed between the first boundary and the second boundary in the first direction.
[0018] In an embodiment, the output grayscale values applied to the first and second sub-pixels disposed in the buffer area can be applied to all first sub-pixels included in the first pixel disposed between the first boundary and the second boundary in the second direction perpendicular to the first direction.
[0019] In an embodiment, the output grayscale values applied to the first and second sub-pixels disposed in the buffer area can be applied to all first sub-pixels included in the first pixel disposed between the first boundary and the second boundary in a third-direction orientation between the first direction and the second direction.
[0020] In an embodiment, when the input grayscale value of the first sub-pixel and the input grayscale value of the second sub-pixel are the same, the output grayscale value applied to the first sub-pixel in the first region and the output grayscale value applied to the second sub-pixel in the second region can be the same.
[0021] In an embodiment, when the input grayscale value of the first sub-pixel and the input grayscale value of the second sub-pixel are the same, the output grayscale value applied to the first sub-pixel in the first region and the output grayscale value applied to the second sub-pixel in the second region can decrease toward the buffer region.
[0022] In an embodiment, the output grayscale values applied to the first and second sub-pixels set in the buffer area may not be applied to some sub-pixels among all the first and second sub-pixels set in the buffer area.
[0023] In an embodiment, the output grayscale values applied to the first and second sub-pixels set in the buffer area can be applied to all the first and second sub-pixels set in the buffer area.
[0024] The electronic device in the embodiment includes: a display device for displaying an image; and a processor for providing input image data, including input grayscale values, to the display device. The display device includes: a display panel including a first pixel and a second pixel, the first pixel including a first sub-pixel having a first viewing angle, and the second pixel including a second sub-pixel having a second viewing angle different from the first viewing angle; and a controller for generating output image data including a plurality of output grayscale values applied to sub-pixels of the display panel by rendering the input image data. The output grayscale values are applied only to a first sub-pixel in a first region among the first sub-pixels, the output grayscale values are applied only to a second sub-pixel in a second region among the second sub-pixels, and the output grayscale values are applied to a first sub-pixel and a second sub-pixel in a buffer region between the first and second sub-pixels. Furthermore, when the input grayscale values of the first and second sub-pixels are the same, the output grayscale values applied to the first and second sub-pixels in the buffer region are less than the output grayscale values applied to the first sub-pixels in the first region and the second sub-pixels in the second region.
[0025] In the display device, the method for driving the display device, and the electronic device described in the embodiments, the output grayscale value applied to a sub-pixel disposed in a buffer region between a normal region and a private region is less than the output grayscale values applied to a sub-pixel disposed in the normal region and the sub-pixel disposed in the private region, such that the sub-pixel disposed in the buffer region can emit light with relatively low brightness. Accordingly, the color difference at the boundary between the normal region and the private region can be reduced, and the visibility at the boundary between the normal region and the private region can be reduced. Attached Figure Description
[0026] The illustrative, non-limiting embodiments will be more clearly understood through the following detailed description taken in conjunction with the accompanying drawings.
[0027] Figure 1 This is a block diagram illustrating an embodiment of the display device.
[0028] Figure 2 It is a plan view illustrating the pixels included in the display panel.
[0029] Figure 3 This is a diagram illustrating the output image data based on existing technology.
[0030] Figure 4 The diagram is based on Figure 3 The image is displayed by outputting image data.
[0031] Figure 5 This is a diagram illustrating an embodiment of the output image data in the first operation.
[0032] Figure 6 The diagram is based on Figure 5 The image is displayed by outputting image data.
[0033] Figure 7 This is a diagram illustrating an embodiment of the output image data in the second operation.
[0034] Figure 8 The diagram is based on Figure 7 The image is displayed by outputting image data.
[0035] Figure 9 This is a diagram illustrating an embodiment of the output image data in the third operation.
[0036] Figure 10 The diagram is based on Figure 9 The image is displayed by outputting image data.
[0037] Figure 11 This is a diagram illustrating an embodiment of the output image data in the fourth operation.
[0038] Figure 12 The diagram is based on Figure 11 The image is displayed by outputting image data.
[0039] Figure 13 This is a diagram illustrating an embodiment of output image data.
[0040] Figure 14 This is a diagram illustrating an embodiment of output image data.
[0041] Figure 15 This is a flowchart illustrating an embodiment of a method for driving a display device.
[0042] Figure 16 This is a block diagram illustrating an embodiment of the electronic device. Detailed Implementation
[0043] In the following, the display device, the method of driving the display device, and the electronic device in the embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. The same or similar reference numerals will be used for the same elements in the drawings.
[0044] The invention will now be described more fully below with reference to the accompanying drawings, in which various embodiments are illustrated. However, the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. The same reference numerals throughout refer to the same elements.
[0045] What will be understood is that when an element is referred to as being "on" another element, it can be directly on that other element, or an intermediary element can exist between them. Conversely, when an element is referred to as being "directly on" another element, there is no intermediary element.
[0046] It will be understood that although the terms “first,” “second,” “third,” etc., may be used herein to describe various elements, components, areas, layers, and / or parts, these elements, components, areas, layers, and / or parts should not be limited by these terms. These terms are used only to distinguish one element, component, area, layer, or part from another. Therefore, the “first element,” “component,” “area,” “layer,” or “part” discussed below may be referred to as a second element, component, area, layer, or part without departing from the teachings herein.
[0047] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, unless the context clearly indicates otherwise, the singular forms “a” and “the (described)” are intended to include the plural forms containing “at least one”. “Or” means “and / or”. As used herein, the term “and / or” includes any and all combinations of one or more of the associated listed items. It will be further understood that, when used in this specification, the terms “comprising” or “including” and / or variations thereof indicate the presence of stated features, areas, integrals, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, areas, integrals, steps, operations, elements, components, and / or groups thereof.
[0048] Furthermore, relative terms such as “below” or “bottom” and “above” or “top” may be used herein to describe the relationship between one element and another as illustrated in the accompanying drawings. It will be understood that, in addition to the orientations depicted in the drawings, the relative terms are intended to cover different orientations of the device. For example, if the device in one of the drawings is flipped, the element described as being “below” to another element will then be oriented “above” to that other element. Thus, depending on the specific orientation of the drawing, the exemplary term “below” can cover both “below” and “above” orientations. Similarly, if the device in one of the drawings is flipped, the element described as being “below” or “under” another element will then be oriented “above” to that other element. Thus, the exemplary terms “below” or “under” can cover both “above” and “below” orientations.
[0049] Unless otherwise specified, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. It will be further understood that terms (such as those defined in common dictionaries) shall be interpreted as having the same meaning as they have in the relevant field and in the context of this disclosure, and shall not be interpreted in an idealized or overly formal sense unless expressly defined herein.
[0050] Figure 1 This is a block diagram illustrating an embodiment of the display device 100.
[0051] Reference Figure 1 The display device 100 may include a display panel 110, a gate driver 120, a transmitter driver 130, a data driver 140, and a controller 150.
[0052] Display panel 110 may include multiple pixels PX. Each of the pixels PX may include multiple sub-pixels.
[0053] The gate driver 120 can provide a gate signal GS to a sub-pixel. The gate driver 120 can generate the gate signal GS based on a gate control signal GCS. The gate control signal GCS may include a gate clock signal and a gate start signal.
[0054] The transmit driver 130 can provide the transmit signal EM to the sub-pixel. The transmit driver 130 can generate the transmit signal EM based on the transmit control signal ECS. The transmit control signal ECS may include a transmit clock signal and a transmit start signal.
[0055] Data driver 140 can provide a data voltage VDAT to a sub-pixel. Data driver 140 can generate the data voltage VDAT based on output image data IMD2 and data control signal DCS. Output image data IMD2 may include an output grayscale value OGV applied to the sub-pixel. Data driver 140 can convert the digital format output grayscale value OGV into an analog format data voltage VDAT. Data control signal DCS may include a data clock signal, a load signal, and an output data enable signal.
[0056] Controller 150 can control gate driver 120, transmit driver 130, and data driver 140. Controller 150 can provide the gate control signal GCS to gate driver 120, the transmit control signal ECS to transmit driver 130, and the output image data IMD2 and data control signal DCS to data driver 140. Controller 150 can generate output image data IMD2, gate control signal GCS, transmit control signal ECS, and data control signal DCS based on input image data IMD1 and control signal CONT. Input image data IMD1 may include the input grayscale value IGV corresponding to the sub-pixel. Controller 150 can generate output image data IMD2 by rendering input image data IMD1. Control signal CONT may include a master clock signal, a vertical synchronization signal, a horizontal synchronization signal, and an input data enable signal.
[0057] Figure 2 This is a plan view illustrating pixels PX1 and PX2 included in the display panel 110. In an embodiment, for example, Figure 2 The diagram shows the first subpixel row X1 to the twelfth subpixel row X12 and the first subpixel column Y1 to the twenty-fourth subpixel column Y24 of panel 110.
[0058] Reference Figure 1 and Figure 2The display panel 110 may include a first pixel PX1 and a second pixel PX2. The first pixel PX1 may include a first sub-pixel having a first viewing angle, and the second pixel PX2 may include a second sub-pixel having a second viewing angle. The second viewing angle may be narrower than the first viewing angle. In this case, the first sub-pixel may be a wide-viewing-angle sub-pixel, and the second sub-pixel may be a narrow-viewing-angle sub-pixel.
[0059] In an embodiment, each of the first pixel PX1 and the second pixel PX2 may include a red sub-pixel R displaying red, two green sub-pixels G displaying green, and a blue sub-pixel B displaying blue. In an embodiment, within a pixel, the green sub-pixel G may be disposed on a first direction DR1 from the center of the pixel, with the center of the pixel interposed therebetween, and the red sub-pixel R and the blue sub-pixel B may be disposed on a second direction DR2 from the center of the pixel, with the center of the pixel interposed therebetween. The second direction DR2 may be perpendicular to the first direction DR1. In an embodiment, for example, the first direction DR1 may be horizontal, and the second direction DR2 may be vertical.
[0060] In this embodiment, the red sub-pixel R of the first pixel PX1 can be located in the 4n-3 (n is a natural number greater than or equal to 1) sub-pixel row and the 4m-3 (m is a natural number greater than or equal to 1) sub-pixel column, the green sub-pixel G of the first pixel PX1 can be located in the 4n sub-pixel row and the 2m sub-pixel column, and the blue sub-pixel B of the first pixel PX1 can be located in the 4n-1 sub-pixel row and the 4m-3 sub-pixel column. Similarly, the red sub-pixel R of the second pixel PX2 can be located in the 4n-1 sub-pixel row and the 4m-1 sub-pixel column, the green sub-pixel G of the second pixel PX2 can be located in the 4n-2 sub-pixel row and the 2m sub-pixel column, and the blue sub-pixel B of the second pixel PX2 can be located in the 4n-3 sub-pixel row and the 4m-1 sub-pixel column. In this configuration, the red sub-pixel R of the first pixel PX1 and the blue sub-pixel B of the second pixel PX2 can be alternately arranged in the same sub-pixel row along the first direction DR1; the green sub-pixel G of the first pixel PX1 and the green sub-pixel G of the second pixel PX2 can be alternately arranged in the same sub-pixel column along the second direction DR2; and the blue sub-pixel B of the first pixel PX1 and the red sub-pixel R of the second pixel PX2 can be alternately arranged in the same sub-pixel row along the first direction DR1. Furthermore, the four second pixels PX2 surrounding a first pixel PX1 can be positioned on a third direction DR3 between the first direction DR1 and the second direction DR2 originating from the first pixel PX1. The third direction DR3 can be a diagonal direction intersecting both the horizontal and vertical directions.
[0061] The display panel 110 can be divided into unit regions UA arranged in a first direction DR1 and a second direction DR2. The controller 150 can generate output image data IMD2 by rendering input image data IMD1 for each unit region UA. Multiple sub-pixels can be arranged in a unit region UA. In a unit region UA, red sub-pixels R and blue sub-pixels B can be arranged in odd-numbered sub-pixel rows and columns, and green sub-pixels G can be arranged in even-numbered sub-pixel rows and columns. In an embodiment, for example, in a configuration... Figure 2 In the cell region UA of the first sub-pixel row X1 to the fourth sub-pixel row X4 and the first sub-pixel column Y1 to the eighth sub-pixel column Y8, the red sub-pixel R and the blue sub-pixel B can be placed in the first sub-pixel row X1 and the third sub-pixel row X3, as well as the first sub-pixel column Y1, the third sub-pixel column Y3, the fifth sub-pixel column Y5 and the seventh sub-pixel column Y7, and the green sub-pixel G can be placed in the second sub-pixel row X2 and the fourth sub-pixel row X4, as well as the second sub-pixel column Y2, the fourth sub-pixel column Y4, the sixth sub-pixel column Y6 and the eighth sub-pixel column Y8.
[0062] Figure 3 This is a diagram illustrating the output image data IMD2 based on existing technology. Figure 4 The diagram is based on Figure 3 The output image data IMD2 is used to display the image. Figure 3 The diagram shows the sub-pixel to which the output grayscale value OGV is applied.
[0063] Reference Figures 1 to 4 The display panel 110 may include a first area (or normal area) NA driven in a first mode (or normal mode) and a second area (or private area) PA driven in a second mode (or private mode). The positions of the normal area NA and the private area PA within the display panel 110 may be determined by user settings or by the image displayed by the display panel 110.
[0064] In the normal region NA, the output grayscale value OGV can be applied only to the first sub-pixel of the first pixel PX1, which has a wide viewing angle. Accordingly, the image displayed in the normal region NA can be viewed not only from the display device 100... Figure 16 The electronic device 1000 can be seen from the front, and it can also be seen from the side.
[0065] In the private area PA, the output grayscale value OGV can be applied only to the second sub-pixel of the second pixel PX2, which has a narrow viewing angle. Accordingly, the image displayed in the private area PA can only be seen from the front of the electronic device 1000 and cannot be seen from the side of the electronic device 1000.
[0066] The output grayscale value OGV may not be applied to some sub-pixels among all sub-pixels included in the boundary BL between the normal region NA and the private region PA. In an embodiment, for example, in the first pixel PX1 adjacent to the upper side of the boundary BL, the output grayscale value OGV may be applied to the green sub-pixel G and the blue sub-pixel B, and the output grayscale value OGV may not be applied to the red sub-pixel R. Accordingly, a blue-green horizontal line may appear above the boundary BL. In an embodiment, for example, in the first pixel PX1 adjacent to the lower side of the boundary BL, the output grayscale value OGV may be applied to the red sub-pixel R, and the output grayscale value OGV may not be applied to the green sub-pixel G and the blue sub-pixel B. Accordingly, a red horizontal line may appear below the boundary BL. In one embodiment, for example, in the first pixel PX1 adjacent to the left side of the boundary BL, the output grayscale value OGV may be applied to a green sub-pixel G, and the output grayscale value OGV may not be applied to the red sub-pixel R, another green sub-pixel G, and the blue sub-pixel B. Accordingly, a green vertical line may appear to the left of the boundary BL. In another embodiment, for example, in the first pixel PX1 adjacent to the right side of the boundary BL, the output grayscale value OGV may be applied to the red sub-pixel R, a green sub-pixel G, and the blue sub-pixel B, and the output grayscale value OGV may not be applied to the other green sub-pixel G. Accordingly, a magenta vertical line may appear to the right of the boundary BL. Therefore, luminance difference and chromatic difference may occur at the boundary BL between the normal region NA and the private region PA, and the boundary BL between the normal region NA and the private region PA may be identified.
[0067] Figures 5 to 12 This is a diagram illustrating an embodiment in which the controller 150 generates output image data IMD2 by sequentially rendering input image data IMD1 during four operations. Figure 5 This is a diagram illustrating an embodiment of the output image data IMD2 in the first operation. Figure 6 The diagram is based on Figure 5 The output image data IMD2 is used to display the image. Figure 7 This is a diagram illustrating an embodiment of the output image data IMD2 in the second operation. Figure 8 The diagram is based on Figure 7 The output image data IMD2 is used to display the image. Figure 9 This is a diagram illustrating an embodiment of the output image data IMD2 in the third operation. Figure 10 The diagram is based on Figure 9 The output image data IMD2 is used to display the image. Figure 11This is a diagram illustrating an embodiment of the output image data IMD2 in the fourth operation. Figure 12 The diagram is based on Figure 11 The output image data IMD2 is used to display the image. Figure 5 , Figure 7 , Figure 9 and Figure 11 The diagram shows the sub-pixel to which the output grayscale value OGV is applied.
[0068] Reference Figure 1 , Figure 2 and Figures 5 to 12 To prevent the boundary between the normal region NA and the private region PA from being detected, the output grayscale value OGV can be applied to the first and second sub-pixels in the buffer region BA between the normal region NA and the private region PA. The buffer region BA can be set between the normal region NA and the private region PA.
[0069] like Figure 5 As illustrated in the diagram, in the first operation, in the normal region NA, the output grayscale value OGV can be applied only to the first sub-pixel, and the output grayscale value OGV can be excluded from the second sub-pixel. In the private region PA, the output grayscale value OGV can be applied only to the second sub-pixel, and the output grayscale value OGV can be excluded from the first sub-pixel.
[0070] In the first operation, the output grayscale value OGV can be applied to all first sub-pixels (one red sub-pixel R, two green sub-pixels G, and one blue sub-pixel B) in each of the first pixels PX1 that are close (adjacent) to the first boundary BL1 between the normal region NA and the buffer region BA, and the output grayscale value OGV can be applied to all second sub-pixels (one red sub-pixel R, two green sub-pixels G, and one blue sub-pixel B) in each of the second pixels PX2 that are close (adjacent) to the second boundary BL2 between the private region PA and the buffer region BA. Accordingly, the output grayscale value OGV can be applied to all sub-pixels in each of the pixels that are close (adjacent) to the first boundary BL1 and the second boundary BL2.
[0071] like Figure 6 As illustrated, the output grayscale value OGV is applied to all sub-pixels of each of the pixels that are close to (adjacent to) the first boundary BL1 and the second boundary BL2, so that color difference does not appear in the buffer area BA. However, in the first operation, the output grayscale value OGV has not yet been applied to the first and second sub-pixels located between the first pixel PX1 that is close to (adjacent to) the first boundary BL1 and the second pixel PX2 that is close to (adjacent to) the second boundary BL2, so that the black square box can be displayed in the buffer area BA.
[0072] like Figure 7 As illustrated, in the second operation, the output grayscale value OGV can be applied to all first sub-pixels included in each of the first pixels PX1 located between the first boundary BL1 and the second boundary BL2 on the first direction DR1. In an embodiment, for example, the output grayscale value OGV can be applied to all the first sub-pixels of each of the first pixels PX1 located in the portion of the buffer region BA that is close to (adjacent to) the left side of the private region PA and the portion of the buffer region BA that is close to (adjacent to) the right side of the private region PA. When the input grayscale value IGV of the first sub-pixel and the input grayscale value IGV of the second sub-pixel are the same as each other, the output grayscale value OGV applied to the first sub-pixel and the second sub-pixel located in the portion of the buffer region BA located between the first boundary BL1 and the second boundary BL2 on the first direction DR1 can be smaller than the output grayscale value OGV applied to the first sub-pixel located in the normal region NA and the output grayscale value OGV applied to the second sub-pixel located in the private region PA.
[0073] like Figure 8 As illustrated, the output grayscale value OGV is applied to all first sub-pixels of each of the first pixels PX1 located between the first boundary BL1 and the second boundary BL2 in the first direction DR1, such that the vertical lines of the black square box displayed in the buffer region BA can be removed. Accordingly, the visibility at the boundary between the normal region NA and the private region PA in the first direction DR1 can be reduced.
[0074] like Figure 9 As illustrated, in the third operation, the output grayscale value OGV can be applied to all first sub-pixels included in each of the first pixels PX1 located between the first boundary BL1 and the second boundary BL2 on the second direction DR2. In an embodiment, the output grayscale value OGV can be applied to all the first sub-pixels of each of the first pixels PX1 located in the portion of the buffer region BA that is close (adjacent) to the upper side of the private region PA and the portion of the buffer region BA that is close (adjacent) to the lower side of the private region PA. For example, when the input grayscale value IGV of the first sub-pixel and the input grayscale value IGV of the second sub-pixel are the same as each other, the output grayscale value OGV applied to the first sub-pixel and the second sub-pixel located in the portion of the buffer region BA located between the first boundary BL1 and the second boundary BL2 on the second direction DR2 can be smaller than the output grayscale value OGV applied to the first sub-pixel located in the normal region NA and the output grayscale value OGV applied to the second sub-pixel located in the private region PA.
[0075] like Figure 10As illustrated, the output grayscale value OGV is applied to all first sub-pixels of each of the first pixels PX1 located between the first boundary BL1 and the second boundary BL2 in the second direction DR2, such that the horizontal line of the black square frame displayed in the buffer region BA can be removed. Accordingly, the visibility at the boundary between the normal region NA and the private region PA in the second direction DR2 can be reduced.
[0076] like Figure 11 As illustrated, in the fourth operation, the output grayscale value OGV can be applied to all first sub-pixels included in each of the first pixels PX1 located between the first boundary BL1 and the second boundary BL2 on the third-party DR3. In an embodiment, for example, the output grayscale value OGV can be applied to all first sub-pixels located in the portion of the buffer region BA that is close to (adjacent to) the corner of the private region PA. When the input grayscale value IGV of the first sub-pixel and the input grayscale value IGV of the second sub-pixel are the same as each other, the output grayscale value OGV applied to the first sub-pixel and the second sub-pixel located in the portion of the buffer region BA located between the first boundary BL1 and the second boundary BL2 on the third-party DR3 can be smaller than the output grayscale value OGV applied to the first sub-pixel located in the normal region NA and the output grayscale value OGV applied to the second sub-pixel located in the private region PA.
[0077] like Figure 12 As illustrated, the output grayscale value OGV is applied to all first sub-pixels of each of the first pixels PX1 located between the first boundary BL1 and the second boundary BL2 on the third-party DR3, so that the corners of the black square boxes displayed in the buffer region BA can be removed. Accordingly, the visibility at the boundary between the normal region NA and the private region PA on the third-party DR3 can be reduced.
[0078] When the input grayscale value IGV of the first sub-pixel and the input grayscale value IGV of the second sub-pixel are the same, the output grayscale value OGV applied to the first and second sub-pixels located in the buffer region BA can be smaller than the output grayscale value OGV applied to the first sub-pixel located in the normal region NA and the output grayscale value OGV applied to the second sub-pixel located in the private region PA. Even if the input grayscale value IGV of the first sub-pixel and the input grayscale value IGV of the second sub-pixel are the same, the first and second sub-pixels located in the buffer region BA can emit light with a brightness lower than the light emitted from the first sub-pixel located in the normal region NA and the second sub-pixel located in the private region PA. Accordingly, the visibility at the boundary between the normal region NA and the private region PA can be reduced.
[0079] although Figures 5 to 12 The illustration shows an embodiment in which the controller 150 generates output image data IMD2 by rendering input image data IMD1 in the order of a first operation, a second operation, a third operation, and a fourth operation; however, this disclosure is not limited thereto. In another embodiment, the controller 150 can generate output image data IMD2 by rendering input image data IMD1 in the order of a first operation, a second operation, a third operation, and a fourth operation. Figures 5 to 12 The input image data IMD1 can be rendered in different orders as shown in the diagram to generate the output image data IMD2, or the output image data IMD2 can be generated by rendering the input image data IMD1 simultaneously.
[0080] Figure 13 This is a diagram illustrating an embodiment of the output image data IMD2. Figure 13 The diagram shows the sub-pixel to which the output grayscale value OGV is applied.
[0081] Reference Figure 1 , Figure 2 and Figure 13 In this embodiment, when the input grayscale value IGV of the first sub-pixel and the input grayscale value IGV of the second sub-pixel are the same, the output grayscale value OGV applied to the first sub-pixel in the normal region NA and the output grayscale value OGV applied to the second sub-pixel in the private region PA can be the same. In the first case (CASE1), when the input grayscale value IGV of the first sub-pixel and the input grayscale value IGV of the second sub-pixel are the same, the output grayscale value OGV applied to the first and second sub-pixels in the buffer region BA can be less than the output grayscale values OGV applied to the first sub-pixel in the normal region NA and the second sub-pixel in the private region PA. Accordingly, in the first case (CASE1), the brightness of the buffer region BA can be lower than the brightness of the normal region NA and the private region PA.
[0082] In an embodiment, when the input grayscale value IGV of the first sub-pixel and the input grayscale value IGV of the second sub-pixel are the same, the output grayscale value OGV applied to the first sub-pixel set in the normal region NA and the second sub-pixel set in the private region PA can be reduced toward the buffer region BA. In the second case (CASE2), when the input grayscale value IGV of the first sub-pixel and the input grayscale value IGV of the second sub-pixel are the same, the output grayscale value OGV applied to the first sub-pixel located in the unit region UA adjacent to the buffer region BA among all the first sub-pixels in the normal region NA, and the second sub-pixel located in the unit region UA adjacent to the buffer region BA among all the second sub-pixels in the private region PA, can be less than the output grayscale value OGV applied to the first sub-pixel located in the unit region UA separated from the buffer region BA among all the first sub-pixels in the normal region NA, and the second sub-pixel located in the unit region UA separated from the buffer region BA among all the second sub-pixels in the private region PA, but can be greater than the output grayscale value OGV applied to the first and second sub-pixels located in the buffer region BA. Accordingly, in the second case (CASE2), sudden changes in brightness between the normal region NA and the buffer region BA, and between the private region PA and the buffer region BA, can be prevented.
[0083] In the third case (CASE3), when the input grayscale value IGV of the first sub-pixel and the input grayscale value IGV of the second sub-pixel are the same, the output grayscale value OGV applied to the first sub-pixel set in the normal region NA can decrease sequentially in unit regions UA in the direction from the normal region NA towards the buffer region BA, and the output grayscale value OGV applied to the second sub-pixel set in the private region PA can decrease sequentially in unit regions UA in the direction from the private region PA towards the buffer region BA. Accordingly, in the third case (CASE3), the brightness can be smoothly changed between the normal region NA and the buffer region BA, and between the private region PA and the buffer region BA.
[0084] Figure 14 This is a diagram illustrating an embodiment of the output image data IMD2. Figure 14 The diagram shows the sub-pixel to which the output grayscale value OGV is applied.
[0085] Reference Figure 1 , Figure 2 and Figure 14In this embodiment, the output grayscale value OGV may not be applied to some sub-pixels among all the first sub-pixels and all the second sub-pixels set in the buffer region BA. In the fourth case CASE4, the output grayscale value OGV may not be applied to one green sub-pixel G among the eight first sub-pixels set in the cell region UA within the buffer region BA, and one red sub-pixel R, two green sub-pixels G, and one blue sub-pixel B among the eight second sub-pixels set in the cell region UA within the buffer region BA.
[0086] In the embodiments, the output grayscale value OGV can be applied to all first sub-pixels and all second sub-pixels set in the buffer region BA. In the fifth case (CASE5), the output grayscale value OGV can be applied to all first sub-pixels and all second sub-pixels set in the buffer region BA, which includes one unit region UA in the horizontal direction. In the sixth case (CASE6), the output grayscale value OGV can be applied to all first sub-pixels and all second sub-pixels set in the buffer region BA, which includes three unit regions UA in the horizontal direction. In the seventh case (CASE7), the output grayscale value OGV can be applied to all first sub-pixels and all second sub-pixels set in the buffer region BA, which includes five unit regions UA in the horizontal direction. In the fifth, sixth, and seventh cases (CASE5, CASE6, and CASE7), the output grayscale value OGV applied to all first sub-pixels set in the buffer region BA can decrease sequentially from the normal region NA towards the buffer region BA, and the output grayscale value OGV applied to all second sub-pixels set in the buffer region BA can decrease sequentially from the private region PA towards the buffer region BA. Correspondingly, in cases CASE5, CASE6, and CASE7, the brightness can be smoothly changed between the normal area NA and the buffer area BA, and between the private area PA and the buffer area BA.
[0087] Figure 15 This is a flowchart illustrating an embodiment of a method for driving a display device 100.
[0088] Reference Figure 1 , Figure 2 and Figures 5 to 15 In the method of driving the display device 100, the controller 150 may receive input image data IMD1 (step S100). The input image data IMD1 may include input grayscale values IGV corresponding to sub-pixels of the display panel 110.
[0089] The controller 150 can generate output image data IMD2 by rendering input image data IMD1 (step S200). Output image data IMD2 may include output grayscale values OGV applied to sub-pixels of the display panel 110. In the normal region NA, the output grayscale value OGV may be applied only to the first sub-pixel having a first viewing angle. In the private region PA, the output grayscale value OGV may be applied only to the second sub-pixel having a second viewing angle. In the buffer region BA between the normal region NA and the private region PA, the output grayscale value OGV may be applied to both the first and second sub-pixels.
[0090] like Figure 5 As illustrated, the output grayscale value OGV can be applied to all first sub-pixels in each of the first pixels PX1 that are close (adjacent) to the first boundary BL1 between the normal region NA and the buffer region BA, and the output grayscale value OGV can be applied to all second sub-pixels in each of the second pixels PX2 that are close (adjacent) to the second boundary BL2 between the private region PA and the buffer region BA. Figure 7 As illustrated, the output grayscale value OGV can be applied to all first sub-pixels in each of the first pixels PX1 located between the first boundary BL1 and the second boundary BL2 on the first direction DR1. Figure 9 As illustrated, the output grayscale value OGV can be applied to all first sub-pixels in each of the first pixels PX1 located between the first boundary BL1 and the second boundary BL2 on the second direction DR2. Figure 11 As illustrated, the output grayscale value OGV can be applied to all first sub-pixels in each of the first pixels PX1 located between the first boundary BL1 and the second boundary BL2 on the third-party DR3.
[0091] When the input grayscale value IGV of the first sub-pixel and the input grayscale value IGV of the second sub-pixel are the same, the output grayscale value OGV applied to the first sub-pixel and the second sub-pixel set in the buffer region BA can be less than the output grayscale value OGV applied to the first sub-pixel set in the normal region NA and the output grayscale value OGV applied to the second sub-pixel set in the private region PA.
[0092] In the embodiments, such as in Figure 13In the first case (CASE1), when the input grayscale value IGV of the first sub-pixel and the input grayscale value IGV of the second sub-pixel are the same, the output grayscale value OGV applied to the first sub-pixel set in the normal region NA and the output grayscale value OGV applied to the second sub-pixel set in the private region PA can be the same, and the output grayscale value OGV applied to the first sub-pixel and the second sub-pixel set in the buffer region BA can be less than the output grayscale value OGV applied to the first sub-pixel set in the normal region NA and the second sub-pixel set in the private region PA.
[0093] In the embodiments, such as in Figure 13 In the second case (CASE2) and the third case (CASE3), when the input grayscale value IGV of the first sub-pixel and the input grayscale value IGV of the second sub-pixel are the same, the output grayscale value OGV applied to the first sub-pixel set in the normal region NA and the second sub-pixel set in the private region PA can decrease towards the buffer region BA.
[0094] In the embodiments, such as in Figure 14 In the fourth case, CASE4, the output grayscale value OGV may not be applied to some sub-pixels set in the first and second sub-pixels of the buffer area BA.
[0095] In the embodiments, such as in Figure 14 In the fifth case (CASE5), the sixth case (CASE6), and the seventh case (CASE7), the output grayscale value OGV can be applied to all first sub-pixels and all second sub-pixels set in the buffer area BA.
[0096] The display device 100 can display an image based on the output image data IMD2 (step S300).
[0097] Figure 16 This is a block diagram illustrating an embodiment of the electronic device 1000.
[0098] Reference Figure 16 The electronic device 1000 can output various information through the display module 1040 within the operating system. When the processor 1010 executes an application stored in the memory 1020, the display module 1040 can provide application information to the user through the display panel 1041. In this embodiment, the processor 1010 can... Figure 1 Input image data IMD1 and Figure 1 The control signal CONT is provided to the display module 1040.
[0099] Processor 1010 can obtain external input through input module 1030 or sensor module 1061 and can execute an application corresponding to the external input. In an embodiment, for example, when a user selects a camera icon displayed on display panel 1041, processor 1010 can obtain user input through input sensors 1061-2 and can activate camera module 1071. Processor 1010 can transmit image data corresponding to the captured image acquired by camera module 1071 to display module 1040. Display module 1040 can display the image corresponding to the captured image through display panel 1041. Some components of electronic device 1000 may be integrated and provided as a single component, or a single component may be provided separately as two or more components.
[0100] Electronic device 1000 can communicate with external electronic device 1002 via a network (e.g., a short-range wireless communication network or a long-range wireless communication network). In embodiments, electronic device 1000 may include a processor 1010, a memory 1020, an input module 1030, a display module 1040, a power module 1050, an internal module 1060, and an external module 1070. In embodiments, electronic device 1000 may omit at least one of the above-mentioned components, or may add one or more other components. In embodiments, some of the above-mentioned components (e.g., sensor module 1061, antenna module 1062, or sound output module 1063) may be integrated into another component (e.g., display module 1040).
[0101] The processor 1010 can execute software to control at least one other component (e.g., hardware or software component) of the electronic device 1000 connected to the processor 1010, and can perform various data processing or calculations. In an embodiment, as at least part of the data processing or calculation, the processor 1010 can store commands or data received from another component (e.g., input module 1030, sensor module 1061, or communication module 1073) in volatile memory 1021, can process commands or data stored in volatile memory 1021, and can store result data in non-volatile memory 1022.
[0102] Processor 1010 may include a main processor 1011 and a coprocessor 1012. Main processor 1011 may include one or more of a central processing unit (“CPU”) 1011-1 and an application processor (“AP”). Main processor 1011 may further include one or more of a graphics processing unit (“GPU”) 1011-2, a communication processor (“CP”), and an image signal processor (“ISP”). At least two of the aforementioned processing units and processors may be implemented as integrated components (e.g., a single chip), or each may be implemented as a separate component (e.g., multiple chips).
[0103] The coprocessor 1012 may include a controller 1012-1. The controller 1012-1 may include interface conversion circuitry and timing control circuitry. The controller 1012-1 can receive image signals from the main processor 1011, convert the data format of the image signals to suit the interface specifications of the display module 1040, and output image data. The controller 1012-1 can output various control signals required to drive the display module 1040.
[0104] The coprocessor 1012 may further include a data conversion circuit 1012-2, a gamma correction circuit 1012-3 (or gamma compensation circuit), a rendering circuit 1012-4, etc. The data conversion circuit 1012-2 can receive image data from the controller 1012-1 and can compensate the image data to display an image at a desired brightness according to the characteristics of the electronic device 1000 or user settings, or can convert the image data to reduce power consumption or compensate for afterimages. The gamma correction circuit 1012-3 can convert image data or a gamma reference voltage so that the image displayed on the electronic device 1000 has desired gamma characteristics. The rendering circuit 1012-4 can receive image data from the controller 1012-1 and can render the image data by taking into account the pixel arrangement of the display panel 1041 applied to the electronic device 1000. At least one of the data conversion circuit 1012-2, the gamma correction circuit 1012-3, and the rendering circuit 1012-4 may be integrated into another component (e.g., the main processor 1011 or the controller 1012-1). At least one of the data conversion circuit 1012-2, the gamma correction circuit 1012-3, and the rendering circuit 1012-4 can be integrated into the data driver 1043, which will be described below.
[0105] The memory 1020 may store various data used by at least one component of the electronic device 1000 (e.g., processor 1010 or sensor module 1061), as well as input or output data for commands associated therewith. The memory 1020 may include at least one of volatile memory 1021 and non-volatile memory 1022.
[0106] The input module 1030 can receive commands or data from outside the electronic device 1000 (e.g., from a user or external electronic device 1002) that will be used in components of the electronic device 1000 (e.g., processor 1010, sensor module 1061, or sound output module 1063).
[0107] Input module 1030 may include a first input module 1031 through which commands or data are input from a user, and a second input module 1032 through which commands or data are input from an external electronic device 1002. The first input module 1031 may include a microphone, mouse, keyboard, keys (e.g., buttons), or pen (e.g., a passive or active pen). The second input module 1032 may support specified protocols that can be connected to the external electronic device 1002 via wiring or wirelessly. In embodiments, the second input module 1032 may include a High Definition Multimedia Interface (“HDMI”), a Universal Serial Bus (“USB”) interface, a Secure Digital (“SD”) card interface, or an audio interface. The second input module 1032 may include connectors such as an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector) that can be physically connected to the external electronic device 1002.
[0108] Display module 1040 can provide visual information to a user. Display module 1040 may include display panel 1041, grid driver 1042, and data driver 1043. Display module 1040 may further include a window, base frame, and support for protecting display panel 1041. Display module 1040 can be used with... Figure 1 The display device 100 corresponds to the display panel 1041. Figure 1 Corresponding to the display panel 110, the gate driver 1042 can be connected to... Figure 1 The gate driver 120 and / or transmit driver 130 correspond to each other, and the data driver 1043 can be connected to... Figure 1 The data drive 140 is compatible.
[0109] Power module 1050 supplies power to components of electronic device 1000. Power module 1050 may include a battery charged with electrical voltage. The battery may include a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell. Power module 1050 may include power management circuitry 1051. Power management circuitry 1051 can provide optimized power supply to each of the above-described modules and the modules described below. Power module 1050 may include a wireless power transmitting / receiving component electrically connected to the battery. The wireless power transmitting / receiving component may include multiple coil-type antenna radiators.
[0110] The electronic device 1000 may further include an internal module 1060 and an external module 1070. The internal module 1060 may include a sensor module 1061, an antenna module 1062, and a sound output module 1063. The external module 1070 may include a camera module 1071, an optical module 1072, and a communication module 1073.
[0111] The sensor module 1061 can detect input made by the user's body or by a pen in the first input module 1031, and can generate an electrical signal or data value corresponding to the input. The sensor module 1061 may include at least one of a fingerprint sensor 1061-1, an input sensor 1061-2, and a digitizer 1061-3.
[0112] The processor 1010 can output commands or data to the display module 1040, the sound output module 1063, the camera module 1071, or the optical module 1072 based on input data received from the input module 1030. In embodiments, for example, the processor 1010 can generate image data in response to input data applied via a mouse or active pen and output the image data to the display module 1040, or it can generate command data in response to input data and output the command data to the camera module 1071 or the optical module 1072. When no input data is received from the input module 1030 within a predetermined time period, the processor 1010 can switch the operating mode of the electronic device 1000 to a low-power mode or a sleep mode to reduce the power consumption of the electronic device 1000.
[0113] The processor 1010 can output commands or data to the display module 1040, the sound output module 1063, the camera module 1071, or the optical module 1072 based on sensing data received from the sensor module 1061. In an embodiment, for example, the processor 1010 can compare authentication data authorized by the fingerprint sensor 1061-1 with authentication data stored in the memory 1020, and then execute an application based on the comparison result. The processor 1010 can execute commands or output corresponding image data to the display module 1040 based on sensing data detected by the input sensor 1061-2 or the digitizer 1061-3. When the sensor module 1061 includes a temperature sensor, the processor 1010 can receive temperature data for measuring the temperature from the sensor module 1061, and can further perform brightness correction on image data, etc., based on the temperature data.
[0114] The display device in the embodiments can be applied to display devices including computers, laptops, mobile phones, smartphones, smart tablets, smartwatches, portable media players (“PMP”), personal digital assistants (“PDAs”), or Moving Image Experts Group Audio Layer III (“MP3”) players, etc.
[0115] Although the display device, method of driving the display device, and electronic device in the embodiments have been described with reference to the accompanying drawings, the illustrated embodiments are examples and may be modified and altered by those skilled in the art without departing from the spirit of the technology described in the claims.
Claims
1. A display device, comprising: The display panel includes a first pixel and a second pixel. The first pixel includes a first sub-pixel having a first viewing angle, and the second pixel includes a second sub-pixel having a second viewing angle different from the first viewing angle. as well as The controller generates output image data comprising multiple output grayscale values respectively applied to the first sub-pixel and the second sub-pixel of the display panel by rendering input image data including input grayscale values. in: The output grayscale value among the plurality of output grayscale values is applied only to the first sub-pixel in the first region of the first sub-pixel. The output grayscale value among the plurality of output grayscale values is applied only to the second sub-pixel in the second region of the second sub-pixel. The output grayscale value of the plurality of output grayscale values is applied to the first sub-pixel and the second sub-pixel in the buffer region between the first region and the second region, and When the input grayscale value of the first sub-pixel and the input grayscale value of the second sub-pixel are the same, the output grayscale value applied to the first sub-pixel and the second sub-pixel set in the buffer region is less than the output grayscale value applied to the first sub-pixel set in the first region and the output grayscale value applied to the second sub-pixel set in the second region.
2. The display device according to claim 1, wherein: The output grayscale value applied to the first sub-pixel located in the first region or the output grayscale value applied to the first sub-pixel located in the buffer region is applied to all first sub-pixels included in the first pixel adjacent to the first boundary between the first region and the buffer region, and The output grayscale value applied to the second sub-pixel located in the second region or the output grayscale value applied to the second sub-pixel located in the buffer region is applied to all second sub-pixels included in the second pixel close to the second boundary between the second region and the buffer region.
3. The display device according to claim 2, wherein, The output grayscale value applied to the first sub-pixel and the second sub-pixel set in the buffer area is applied to all the first sub-pixels included in the first pixel set between the first boundary and the second boundary in the first direction.
4. The display device according to claim 3, wherein, The output grayscale value applied to the first sub-pixel and the second sub-pixel set in the buffer area is applied to all the first sub-pixels included in the first pixel set between the first boundary and the second boundary in a second direction perpendicular to the first direction.
5. The display device according to claim 4, wherein, The output grayscale value applied to the first sub-pixel and the second sub-pixel set in the buffer area is applied to all the first sub-pixels included in the first pixel set between the first boundary and the second boundary in a third-direction upward orientation between the first direction and the second direction.
6. The display device according to claim 1, wherein, When the input grayscale value of the first sub-pixel and the input grayscale value of the second sub-pixel are the same, the output grayscale value applied to the first sub-pixel in the first region and the output grayscale value applied to the second sub-pixel in the second region are the same.
7. The display device according to claim 1, wherein, When the input grayscale value of the first sub-pixel and the input grayscale value of the second sub-pixel are the same, the output grayscale value applied to the first sub-pixel in the first region and the output grayscale value applied to the second sub-pixel in the second region decrease toward the buffer region.
8. The display device according to claim 1, wherein, The output grayscale value applied to the first sub-pixel and the second sub-pixel set in the buffer area is not applied to some sub-pixels among all the first sub-pixels and all the second sub-pixels set in the buffer area.
9. The display device according to claim 1, wherein, The output grayscale value applied to the first sub-pixel and the second sub-pixel set in the buffer area is applied to all the first sub-pixel and all the second sub-pixel set in the buffer area.
10. The display device according to claim 1, wherein, Each of the first pixel and the second pixel includes a red sub-pixel that displays red, two green sub-pixels that display green, and a blue sub-pixel that displays blue.
11. A method for driving a display device, the method comprising: Receive input image data including input grayscale values; Output image data comprising the plurality of output grayscale values respectively applied to the first sub-pixel and the second sub-pixel is generated by rendering the input image data in such a manner that the output grayscale values of the plurality of output grayscale values are applied only to the first sub-pixel of the display panel, including the first sub-pixel in the first region having a first viewing angle, the output grayscale values of the plurality of output grayscale values are applied only to the second sub-pixel of the display panel, including the second sub-pixel in the second region having a second viewing angle different from the first viewing angle, and the output grayscale values of the plurality of output grayscale values are applied to the first sub-pixel and the second sub-pixel in the buffer region between the first region and the second region. as well as The output image data displays an image. Wherein, when the input grayscale value of the first sub-pixel and the input grayscale value of the second sub-pixel are the same, the output grayscale value applied to the first sub-pixel and the second sub-pixel set in the buffer region is less than the output grayscale value applied to the first sub-pixel set in the first region and the output grayscale value applied to the second sub-pixel set in the second region.
12. The method according to claim 11, wherein: The output grayscale value applied to the first sub-pixel located in the first region or the output grayscale value applied to the first sub-pixel located in the buffer region is applied to all first sub-pixels included in the first pixel adjacent to the first boundary between the first region and the buffer region, and The output grayscale value applied to the second sub-pixel located in the second region or the output grayscale value applied to the second sub-pixel located in the buffer region is applied to all second sub-pixels included in the second pixel close to the second boundary between the second region and the buffer region.
13. The method according to claim 12, wherein, The output grayscale value applied to the first sub-pixel and the second sub-pixel set in the buffer area is applied to all the first sub-pixels included in the first pixel set between the first boundary and the second boundary in the first direction.
14. The method according to claim 13, wherein, The output grayscale value applied to the first sub-pixel and the second sub-pixel set in the buffer area is applied to all the first sub-pixels included in the first pixel set between the first boundary and the second boundary in a second direction perpendicular to the first direction.
15. The method according to claim 14, wherein, The output grayscale value applied to the first sub-pixel and the second sub-pixel set in the buffer area is applied to all the first sub-pixels included in the first pixel set between the first boundary and the second boundary in a third-direction upward orientation between the first direction and the second direction.
16. The method according to claim 11, wherein, When the input grayscale value of the first sub-pixel and the input grayscale value of the second sub-pixel are the same, the output grayscale value applied to the first sub-pixel in the first region and the output grayscale value applied to the second sub-pixel in the second region are the same.
17. The method according to claim 11, wherein, When the input grayscale value of the first sub-pixel and the input grayscale value of the second sub-pixel are the same, the output grayscale value applied to the first sub-pixel in the first region and the output grayscale value applied to the second sub-pixel in the second region decrease toward the buffer region.
18. The method according to claim 11, wherein, The output grayscale value applied to the first sub-pixel and the second sub-pixel set in the buffer area is not applied to some sub-pixels among all the first sub-pixels and all the second sub-pixels set in the buffer area.
19. The method according to claim 11, wherein, The output grayscale value applied to the first sub-pixel and the second sub-pixel set in the buffer area is applied to all the first sub-pixel and all the second sub-pixel set in the buffer area.
20. An electronic device, comprising: The processor provides input image data, including input grayscale values; as well as The display device according to any one of claims 1 to 10 receives the input image data and displays the image.