Display device and electronic device

Abstract

This invention relates to display devices and electronic devices. The display device includes: a display panel including ordinary sub-pixels arranged in a first pixel arrangement having a first viewing angle and privacy sub-pixels having a second viewing angle; and a panel driver that receives input image data corresponding to a second pixel arrangement different from the first pixel arrangement and drives the display panel. In privacy mode, the panel driver performs a resolution reduction rendering operation that adjusts each sub-pixel data based on neighboring sub-pixel data, performs a pixel arrangement rendering operation on the input image data for which the resolution reduction rendering operation has been performed, performs a privacy rendering operation on the input image data for which both the resolution reduction rendering operation and the pixel arrangement rendering operation have been performed to generate second output image data, and drives only the privacy sub-pixels based on the second output image data.

Description

Technical Field

[0001] The embodiments generally relate to display devices, and more specifically, to display devices operating in normal mode and privacy mode, and to electronic devices including the display devices. Background Technology

[0002] Typically, display devices can display images with a wide viewing angle, allowing not only users in front of the device but also those to the side to view the image. However, recently, to protect personal information or ensure the security of display devices installed in vehicles, privacy modes (or private modes) have been developed in which the display device only shows images to users in front of it. For example, a vehicle display device positioned corresponding to a passenger seat can operate not only in a normal mode (or public mode) where images are displayed with a wide viewing angle, providing images to both the driver and passengers, but also in a privacy mode where images are displayed with a narrow viewing angle, providing images only to the passengers. Summary of the Invention

[0003] Some embodiments provide display devices capable of reducing or preventing color shift phenomena in privacy mode (and / or normal mode).

[0004] Some embodiments provide electronic devices that include a display device.

[0005] According to an embodiment, a display device is provided, comprising: a display panel including a plurality of ordinary sub-pixels having a first viewing angle and a plurality of privacy sub-pixels having a second viewing angle different from the first viewing angle, the plurality of ordinary sub-pixels and the plurality of privacy sub-pixels being arranged in a first pixel arrangement structure; and a panel driver configured to receive input image data corresponding to a second pixel arrangement structure different from the first pixel arrangement structure, and to drive the display panel. In a normal mode, the panel driver performs a pixel arrangement rendering operation on the input image data corresponding to the second pixel arrangement structure to generate first output image data corresponding to the first pixel arrangement structure, and drives the plurality of ordinary sub-pixels and the plurality of privacy sub-pixels based on the first output image data. In a privacy mode, the panel driver performs a resolution reduction rendering operation, which adjusts each sub-pixel data included in the input image data based on neighboring sub-pixel data included in the input image data, performs a pixel arrangement rendering operation on the input image data for which the resolution reduction rendering operation has been performed, performs a privacy rendering operation on the input image data for which the resolution reduction rendering operation and the pixel arrangement rendering operation have been performed to generate second output image data, and drives only the plurality of privacy sub-pixels among the plurality of ordinary sub-pixels and the plurality of privacy sub-pixels based on the second output image data.

[0006] In an embodiment, the input image data may include multiple red subpixel data, multiple green subpixel data, and multiple blue subpixel data. During a resolution reduction rendering operation, the panel driver may adjust each red subpixel data based on two horizontally adjacent red subpixel data from the multiple red subpixel data in the second pixel arrangement structure; it may adjust each green subpixel data based on two horizontally adjacent green subpixel data from the multiple green subpixel data in the second pixel arrangement structure; and it may adjust each blue subpixel data based on two horizontally adjacent blue subpixel data from the multiple blue subpixel data in the second pixel arrangement structure.

[0007] In an embodiment, the input image data may include multiple red subpixel data, multiple green subpixel data, and multiple blue subpixel data. During the resolution reduction rendering operation, the panel driver may adjust each red subpixel data based on two vertically adjacent red subpixel data from the multiple red subpixel data in the second pixel arrangement structure; it may adjust each green subpixel data based on two vertically adjacent green subpixel data from the multiple green subpixel data in the second pixel arrangement structure; and it may adjust each blue subpixel data based on two vertically adjacent blue subpixel data from the multiple blue subpixel data in the second pixel arrangement structure.

[0008] In an embodiment, the input image data may include multiple red subpixel data, multiple green subpixel data, and multiple blue subpixel data. During the resolution reduction rendering operation, the panel driver may adjust each red subpixel data based on two horizontally adjacent red subpixel data and two vertically adjacent red subpixel data from the multiple red subpixel data in the second pixel arrangement structure; it may adjust each green subpixel data based on two horizontally adjacent green subpixel data and two vertically adjacent green subpixel data from the multiple green subpixel data in the second pixel arrangement structure; and it may adjust each blue subpixel data based on two horizontally adjacent blue subpixel data and two vertically adjacent blue subpixel data from the multiple blue subpixel data in the second pixel arrangement structure.

[0009] In an embodiment, the input image data may include multiple red subpixel data, multiple green subpixel data, and multiple blue subpixel data. During a resolution reduction rendering operation, the panel driver may adjust each red subpixel data based on four red subpixel data adjacent to each red subpixel data along a diagonal line within the multiple red subpixel data in the second pixel arrangement structure; it may adjust each green subpixel data based on four green subpixel data adjacent to each green subpixel data along a diagonal line within the multiple green subpixel data in the second pixel arrangement structure; and it may adjust each blue subpixel data based on four blue subpixel data adjacent to each blue subpixel data along a diagonal line within the multiple blue subpixel data in the second pixel arrangement structure.

[0010] In an embodiment, the input image data may include multiple red subpixel data, multiple green subpixel data, and multiple blue subpixel data. During the resolution reduction rendering operation, the panel driver may adjust each red subpixel data based on two horizontally adjacent red subpixel data, two vertically adjacent red subpixel data, and four diagonally adjacent red subpixel data from the multiple red subpixel data in the second pixel arrangement structure. Similarly, each green subpixel data may be adjusted based on two horizontally adjacent green subpixel data, two vertically adjacent green subpixel data, and four diagonally adjacent green subpixel data from the multiple green subpixel data in the second pixel arrangement structure. Furthermore, each blue subpixel data may be adjusted based on two horizontally adjacent blue subpixel data, two vertically adjacent blue subpixel data, and four diagonally adjacent blue subpixel data from the multiple blue subpixel data in the second pixel arrangement structure.

[0011] In an embodiment, in the first pixel arrangement structure, each sub-pixel may include two first color sub-pixels, one second color sub-pixel, and one third color sub-pixel respectively arranged at the four corners of the rhombus shape, and the two first color sub-pixels are arranged at opposite corners among the four corners. In the second pixel arrangement structure, each sub-pixel may include one first color sub-pixel, one second color sub-pixel, and one third color sub-pixel arranged sequentially in one direction.

[0012] In this embodiment, the plurality of ordinary sub-pixels may include ordinary red sub-pixels, ordinary green sub-pixels, and ordinary blue sub-pixels, and the plurality of privacy sub-pixels may include privacy red sub-pixels, privacy green sub-pixels, and privacy blue sub-pixels. One ordinary red sub-pixel from the ordinary red sub-pixels, two ordinary green sub-pixels from the ordinary green sub-pixels, and one ordinary blue sub-pixel from the ordinary blue sub-pixels can be respectively arranged at the four corners of the rhombus shape, and similarly, one privacy red sub-pixel from the privacy red sub-pixels, two privacy green sub-pixels from the privacy green sub-pixels, and one privacy blue sub-pixel from the privacy blue sub-pixels can be respectively arranged at the four corners of the rhombus shape.

[0013] In this embodiment, the input image data may include multiple red subpixel data, multiple green subpixel data, and multiple blue subpixel data. During the pixel arrangement rendering operation, the panel driver may generate each subpixel data based on two adjacent red subpixel data points from the multiple red subpixel data for each of the normal red subpixels or privacy red subpixels; it may also generate each subpixel data based on two adjacent green subpixel data points from the multiple green subpixel data for each of the normal green subpixels or privacy green subpixels; and it may generate each subpixel data based on two adjacent blue subpixel data points from the multiple blue subpixel data for each of the normal blue subpixels or privacy blue subpixels.

[0014] In an embodiment, during a privacy rendering operation, the panel driver can convert the subpixel data of multiple ordinary subpixels into the lowest-level data among the subpixel data included in the input image data that has undergone resolution reduction rendering and pixel arrangement rendering operations.

[0015] In an embodiment, the panel driver may include: a scan driver configured to provide scan signals to a plurality of normal sub-pixels and a plurality of privacy sub-pixels; a data driver configured to provide data signals to the plurality of normal sub-pixels and a plurality of privacy sub-pixels based on a first output image data in a normal mode, and to provide data signals to the plurality of privacy sub-pixels based on a second output image data in a privacy mode; and a controller configured to generate first output image data by performing a pixel arrangement rendering operation on input image data in a normal mode, and to generate second output image data by performing a resolution reduction rendering operation, a pixel arrangement rendering operation, and a privacy rendering operation on input image data in a privacy mode.

[0016] In an embodiment, the controller may include: a resolution reduction rendering block configured to perform a resolution reduction rendering operation on the input image data in a privacy mode; a pixel arrangement rendering block configured to perform a pixel arrangement rendering operation on the input image data in a normal mode, and to perform a pixel arrangement rendering operation on the input image data on which the resolution reduction rendering operation has been performed in a privacy mode; and a mode rendering block configured to perform a privacy rendering operation on the input image data on which the resolution reduction rendering operation and the pixel arrangement rendering operation have been performed in a privacy mode.

[0017] According to an embodiment, a display device is provided, comprising: a display panel including a plurality of ordinary sub-pixels having a first viewing angle and a plurality of privacy sub-pixels having a second viewing angle different from the first viewing angle, the plurality of ordinary sub-pixels and the plurality of privacy sub-pixels being arranged in a first pixel arrangement structure; and a panel driver configured to receive input image data corresponding to the second pixel arrangement structure different from the first pixel arrangement structure, and to drive the display panel. In a normal mode, the panel driver performs a resolution reduction rendering operation, which adjusts each sub-pixel data included in the input image data based on neighboring sub-pixel data included in the input image data, performs a pixel arrangement rendering operation on the input image data for which the resolution reduction rendering operation has been performed, and performs a normal rendering operation on the input image data for which both the resolution reduction rendering operation and the pixel arrangement rendering operation have been performed, to generate first output image data, and drives only the plurality of ordinary sub-pixels among the plurality of ordinary sub-pixels and the plurality of privacy sub-pixels based on the first output image data. In privacy mode, the panel driver performs a resolution reduction rendering operation on the input image data, a pixel arrangement rendering operation on the input image data for which the resolution reduction rendering operation has been performed, and a privacy rendering operation on the input image data for which both the resolution reduction rendering operation and the pixel arrangement rendering operation have been performed, to generate a second output image data, and drives only a plurality of privacy sub-pixels among a plurality of ordinary sub-pixels and a plurality of privacy sub-pixels based on the second output image data.

[0018] In an embodiment, the input image data may include multiple red subpixel data, multiple green subpixel data, and multiple blue subpixel data. During a resolution reduction rendering operation, the panel driver may adjust each red subpixel data based on two horizontally adjacent red subpixel data from the multiple red subpixel data in the second pixel arrangement structure; it may adjust each green subpixel data based on two horizontally adjacent green subpixel data from the multiple green subpixel data in the second pixel arrangement structure; and it may adjust each blue subpixel data based on two horizontally adjacent blue subpixel data from the multiple blue subpixel data in the second pixel arrangement structure.

[0019] In an embodiment, the input image data may include multiple red subpixel data, multiple green subpixel data, and multiple blue subpixel data. During the resolution reduction rendering operation, the panel driver may adjust each red subpixel data based on two vertically adjacent red subpixel data from the multiple red subpixel data in the second pixel arrangement structure; it may adjust each green subpixel data based on two vertically adjacent green subpixel data from the multiple green subpixel data in the second pixel arrangement structure; and it may adjust each blue subpixel data based on two vertically adjacent blue subpixel data from the multiple blue subpixel data in the second pixel arrangement structure.

[0020] In an embodiment, the input image data may include multiple red subpixel data, multiple green subpixel data, and multiple blue subpixel data. During the resolution reduction rendering operation, the panel driver may adjust each red subpixel data based on two horizontally adjacent red subpixel data and two vertically adjacent red subpixel data from the multiple red subpixel data in the second pixel arrangement structure; it may adjust each green subpixel data based on two horizontally adjacent green subpixel data and two vertically adjacent green subpixel data from the multiple green subpixel data in the second pixel arrangement structure; and it may adjust each blue subpixel data based on two horizontally adjacent blue subpixel data and two vertically adjacent blue subpixel data from the multiple blue subpixel data in the second pixel arrangement structure.

[0021] In an embodiment, the input image data may include multiple red subpixel data, multiple green subpixel data, and multiple blue subpixel data. During a resolution reduction rendering operation, the panel driver may adjust each red subpixel data based on four red subpixel data adjacent to each red subpixel data along a diagonal line within the multiple red subpixel data in the second pixel arrangement structure; it may adjust each green subpixel data based on four green subpixel data adjacent to each green subpixel data along a diagonal line within the multiple green subpixel data in the second pixel arrangement structure; and it may adjust each blue subpixel data based on four blue subpixel data adjacent to each blue subpixel data along a diagonal line within the multiple blue subpixel data in the second pixel arrangement structure.

[0022] In an embodiment, the input image data may include multiple red subpixel data, multiple green subpixel data, and multiple blue subpixel data. During the resolution reduction rendering operation, the panel driver may adjust each red subpixel data based on two horizontally adjacent red subpixel data, two vertically adjacent red subpixel data, and four diagonally adjacent red subpixel data from the multiple red subpixel data in the second pixel arrangement structure. Similarly, each green subpixel data may be adjusted based on two horizontally adjacent green subpixel data, two vertically adjacent green subpixel data, and four diagonally adjacent green subpixel data from the multiple green subpixel data in the second pixel arrangement structure. Furthermore, each blue subpixel data may be adjusted based on two horizontally adjacent blue subpixel data, two vertically adjacent blue subpixel data, and four diagonally adjacent blue subpixel data from the multiple blue subpixel data in the second pixel arrangement structure.

[0023] In an embodiment, during a normal rendering operation, the panel driver can convert the subpixel data of multiple privacy subpixels into the lowest-level data among the subpixel data included in the input image data that has undergone resolution reduction rendering and pixel arrangement rendering operations. During a privacy rendering operation, the panel driver can convert the subpixel data of multiple normal subpixels into the lowest-level data among the subpixel data included in the input image data that has undergone resolution reduction rendering and pixel arrangement rendering operations.

[0024] According to an embodiment, an electronic device is provided, comprising: a processor configured to provide input image data and a mode signal; a display panel including a plurality of ordinary sub-pixels having a first viewing angle and a plurality of privacy sub-pixels having a second viewing angle different from the first viewing angle, the plurality of ordinary sub-pixels and the plurality of privacy sub-pixels being arranged in a first pixel arrangement structure; and a panel driver configured to receive input image data from the processor corresponding to a second pixel arrangement structure different from the first pixel arrangement structure, receive a mode signal from the processor indicating a normal mode or a privacy mode, and drive the display panel. When the mode signal indicates a privacy mode, the panel driver performs a resolution reduction rendering operation, which adjusts each sub-pixel data included in the input image data based on neighboring sub-pixel data included in the input image data; performs a pixel arrangement rendering operation on the input image data for which the resolution reduction rendering operation has been performed; performs a privacy rendering operation on the input image data for which both the resolution reduction rendering operation and the pixel arrangement rendering operation have been performed to generate output image data; and drives only the plurality of privacy sub-pixels based on the output image data.

[0025] As described above, in the display device and electronic device according to the embodiments, in privacy mode, the panel driver can generate output image data by performing a resolution reduction rendering operation, a pixel arrangement rendering operation, and a privacy rendering operation on the input image data, and can drive only a plurality of privacy sub-pixels among a plurality of normal sub-pixels and a plurality of privacy sub-pixels based on the output image data. Therefore, color shift can be effectively reduced or prevented in privacy mode (and / or normal mode). Attached Figure Description

[0026] From the following detailed description taken in conjunction with the accompanying drawings, exemplary and non-limiting embodiments will be more clearly understood.

[0027] Figure 1 This is a block diagram illustrating a display device according to an embodiment.

[0028] Figure 2 This is a diagram illustrating an example of a display panel included in a display device according to an embodiment.

[0029] Figure 3A This is an example diagram illustrating a display panel where all sub-pixels are illuminated in normal mode. Figure 3B This is another example of a display panel that emits light only a few ordinary sub-pixels in normal mode.

[0030] Figure 4 This is an example diagram illustrating a display panel where only a few privacy subpixels are illuminated in privacy mode.

[0031] Figure 5 This is a diagram illustrating an example of input image data.

[0032] Figure 6A The illustration shows how traditional display devices utilize... Figure 5 An example diagram of image data generated by performing pixel arrangement rendering operations on input image data, and Figure 6B The illustration shows how traditional display devices utilize... Figure 6A An example diagram of image data generated by performing privacy rendering operations on image data.

[0033] Figure 7A The illustration shows the process of using a display device according to an embodiment to... Figure 5 An example diagram of image data generated by performing a resolution down-rendering operation on the input image data. Figure 7B The illustration shows the process of using a display device according to an embodiment to... Figure 7A An example diagram of image data generated by performing pixel arrangement rendering operations on image data, and Figure 7C The illustration shows the process of using a display device according to an embodiment to... Figure 7B An example diagram of image data generated by performing privacy rendering operations on image data.

[0034] Figure 8 This is a flowchart illustrating a method of operating the display device according to an embodiment.

[0035] Figure 9 This is a diagram used to describe an example of pixel arrangement rendering operations according to an embodiment.

[0036] Figures 10A to 10E This is a diagram used to illustrate an example of a resolution reduction rendering operation according to an embodiment.

[0037] Figure 11 This is a diagram used to describe an example of privacy rendering operations according to an embodiment.

[0038] Figure 12 This is a flowchart illustrating a method of operating the display device according to an embodiment.

[0039] Figure 13 This is a diagram used to describe an example of a common rendering operation according to an embodiment.

[0040] Figure 14 This is a block diagram illustrating an electronic device including a display device according to an embodiment.

[0041] Figure 15 This is a block diagram illustrating an example of an electronic device according to an embodiment. Detailed Implementation

[0042] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, “a,” “the,” and “at least one” do not indicate a limitation of quantity and are intended to include both the singular and the plural unless the context clearly indicates otherwise. For example, “element” has the same meaning as “at least one element” unless the context clearly indicates otherwise. “At least one” should not be construed as limited to “a.” “Or” means “and / or.” As used herein, the term “and / or” includes any and all combinations of one or more of the listed items. It will be further understood that, when used in this specification, the terms “comprising” and / or “including” indicate the presence of the stated features, areas, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, areas, integrals, steps, operations, elements, components, and / or groups thereof.

[0043] 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 the second element, component, area, layer, or part without departing from the teachings herein.

[0044] Embodiments are described more fully below with reference to the accompanying drawings. The same or similar reference numerals always refer to the same or similar elements.

[0045] Figure 1 This is a block diagram illustrating a display device according to an embodiment. Figure 2 This is a diagram illustrating an example of a display panel included in a display device according to an embodiment. Figure 3A This is an example diagram illustrating a display panel where all sub-pixels are illuminated in normal mode. Figure 3B This is another example of a display panel that emits light only at a few ordinary sub-pixels in normal mode. Figure 4 This is an example diagram illustrating a display panel where only a few privacy subpixels emit light in privacy mode. Figure 5 This is a diagram illustrating an example of input image data. Figure 6A The illustration shows how traditional display devices utilize... Figure 5 An example diagram of image data generated by performing pixel arrangement rendering operations on input image data. Figure 6B The illustration shows how traditional display devices utilize... Figure 6A An example diagram of image data generated by performing privacy rendering operations on image data. Figure 7A The illustration shows the process of using a display device according to an embodiment to... Figure 5 An example diagram of image data generated by performing a resolution down-rendering operation on the input image data. Figure 7B The illustration shows the process of using a display device according to an embodiment to... Figure 7A An example diagram of image data generated by performing pixel arrangement rendering operations on image data, and Figure 7C The illustration shows the process of using a display device according to an embodiment to... Figure 7B An example diagram of image data generated by performing privacy rendering operations on image data. As used herein, "resolution down-rendering operation" means a rendering operation used to reduce the resolution.

[0046] refer to Figure 1According to an embodiment, the display device 100 may include a display panel 110 comprising a plurality of ordinary subpixels (NSPs) and a plurality of privacy subpixels (PSPs), and a panel driver 120 for driving the display panel 110. The panel driver 120 may include a scan driver 130 providing scan signals SS to the plurality of ordinary subpixels (NSPs) and the plurality of privacy subpixels (PSPs), a data driver 150 providing data signals DS to the plurality of ordinary subpixels (NSPs) and the plurality of privacy subpixels (PSPs), and a controller 160 for controlling the operation of the display device 100. In some embodiments, the panel driver 120 may further include a transmit driver 140 providing transmit signals EM to the plurality of ordinary subpixels (NSPs) and the plurality of privacy subpixels (PSPs).

[0047] Display panel 110 may include a plurality of ordinary subpixels (NSPs) having a first viewing angle and a plurality of privacy subpixels (PSPs) having a second viewing angle different from the first viewing angle. In some embodiments, the first viewing angle may be a relatively wide viewing angle, and the second viewing angle may be a relatively narrow viewing angle. Therefore, light emitted from the plurality of ordinary subpixels (NSPs) may be provided to both a first user located in front of display device 100 and a second user located on the side of display device 100. However, light emitted from the plurality of privacy subpixels (PSPs) may be provided to the first user located in front of display device 100, but may not be provided to the second user located on the side of display device 100. Furthermore, in some embodiments, each of the ordinary subpixels (NSPs) and privacy subpixels (PSPs) may include a light-emitting element, and display panel 110 may be a light-emitting display panel. For example, the light-emitting element may be an organic light-emitting diode (“OLED”), a micron-sized light-emitting diode, a nano-sized light-emitting diode (“NED”), a quantum dot (“QD”) light-emitting diode, an inorganic light-emitting diode, or any other suitable light-emitting element.

[0048] In the display panel 110, multiple ordinary subpixels (NSPs) and multiple privacy subpixels (PSPs) can be arranged in a first pixel arrangement structure. In some embodiments, the first pixel arrangement structure may be a DIAMOND PIXEL where each subpixel includes two first-color subpixels, one second-color subpixel, and one third-color subpixel respectively arranged at the four corners of a rhombus shape, and the two first-color subpixels are arranged at opposite corners of the four corners. ® Arrangement structure. For example, such as Figure 2As illustrated in the diagram, the multiple ordinary subpixels NSP of the display panel 110 may include ordinary red subpixels NRSP, ordinary green subpixels NGSP, and ordinary blue subpixels NBSP, and the multiple privacy subpixels PSP of the display panel 110 may include privacy red subpixels PRSP, privacy green subpixels PGSP, and privacy blue subpixels PBSP. Each of the privacy red subpixels PRSP, privacy green subpixels PGSP, and privacy blue subpixels PBSP may include a septum PT for preventing light emitted by the light-emitting layer from diffusing to the sides, and thus can have a relatively narrow viewing angle. The ordinary red subpixels NRSP, privacy green subpixels PGSP, privacy blue subpixels PBSP, and privacy green subpixels PGSP may be arranged repeatedly in each odd-numbered pixel row PR1 and PR3, and the ordinary blue subpixels NBSP, ordinary green subpixels NGSP, privacy red subpixels PRSP, and ordinary green subpixels NGSP may be arranged repeatedly in each even-numbered pixel row PR2 and PR4, but are not limited thereto. Furthermore, the ordinary red subpixel NRSP, privacy green subpixel PGSP, ordinary blue subpixel NBSP, and ordinary green subpixel NGSP can be arranged repeatedly in each odd-numbered pixel column PC1 and PC3, and the privacy blue subpixel PBSP, privacy green subpixel PGSP, privacy red subpixel PRSP, and ordinary green subpixel NGSP can be arranged repeatedly in each even-numbered pixel column PC2 and PC4, but are not limited thereto. Additionally, a single ordinary red subpixel NRSP, two ordinary green subpixels NGSP, and one ordinary blue subpixel NBSP adjacent to each other can be arranged in a diamond-shaped NDS, and a single privacy red subpixel PRSP, two privacy green subpixels PGSP, and one privacy blue subpixel PBSP adjacent to each other can be arranged in a diamond-shaped PDS.

[0049] Refer again Figure 1 The scan driver 130 can generate a scan signal SS based on the scan control signal SCTRL received from the controller 160, and can sequentially provide the scan signal SS to a plurality of normal sub-pixels NSP and a plurality of privacy sub-pixels PSP row by row. In some embodiments, the scan control signal SCTRL may include, but is not limited to, a scan start signal and a scan clock signal. Furthermore, in some embodiments, the scan driver 130 may be integrated or formed in the display panel 110. In other embodiments, the scan driver 130 may be implemented using one or more integrated circuits.

[0050] The transmit driver 140 can generate a transmit signal EM based on the transmit control signal EMCTRL received from the controller 160, and can sequentially provide the transmit signal EM to a plurality of normal sub-pixels (NSPs) and a plurality of privacy sub-pixels (PSPs) row by row. In some embodiments, the transmit control signal EMCTRL may include, but is not limited to, a transmit start signal and a transmit clock signal. Furthermore, in some embodiments, the transmit driver 140 may be integrated or formed in the display panel 110. In other embodiments, the transmit driver 140 may be implemented using one or more integrated circuits.

[0051] Data driver 150 can generate a data signal DS based on the output image data ODAT1 / ODAT2 received from controller 160 and the data control signal DCTRL, and can provide the data signal DS to multiple common sub-pixels NSP and / or multiple privacy sub-pixels PSP. In some embodiments, data driver 150 and controller 160 can be implemented as a single integrated circuit, and this single integrated circuit can be referred to as a timing controller embedded data driver (“TED”) integrated circuit. In other embodiments, data driver 150 and controller 160 can be implemented as separate integrated circuits.

[0052] Controller 160 (e.g., a timing controller) can receive input image data IDAT and control signal CTRL from a processor (e.g., an application processor (“AP”), a graphics processing unit (“GPU”), a graphics card, etc.). The input image data IDAT may be image data adapted to a second pixel arrangement structure different from the first pixel arrangement structure. In some embodiments, the second pixel arrangement structure may be a striped pixel arrangement structure in which each sub-pixel includes a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel arranged sequentially in one direction, and the input image data IDAT may be RGB striped image data including multiple red sub-pixel data, multiple green sub-pixel data, and multiple blue sub-pixel data. Although the striped pixel arrangement structure is not shown in the figures, in embodiments, the striped pixel arrangement structure may have a similar structure to... Figure 5The input image data shown in the diagram has the same pixel arrangement. The control signal CTRL may include a mode signal SMODE indicating the mode of the display device 100. For example, the mode signal SMODE may indicate, but is not limited to, a normal mode or a privacy mode. In some embodiments, the control signal CTRL may further include, but is not limited to, a vertical synchronization signal, a horizontal synchronization signal, an input data enable signal, a master clock signal, etc. The controller 160 may generate a data control signal DCTRL, a scan control signal SCTRL, a transmit control signal EMCTRL, and output image data ODAT1 / ODAT2 based on the control signal CTRL and the input image data IDAT. The controller 160 may control the scan driver 130 by providing the scan control signal SCTRL to the scan driver 130, control the transmit driver 140 by providing the transmit control signal EMCTRL to the transmit driver 140, and control the data driver 150 by providing the output image data ODAT1 / ODAT2 and the data control signal DCTRL to the data driver 150.

[0053] In normal mode, the display device 100 according to the embodiment can display images to both a first user located in front of the display device 100 and a second user located to the side of the display device 100. However, in privacy mode, the display device 100 according to the embodiment can display images to the first user located in front of the display device 100, but not to the second user located to the side of the display device 100.

[0054] In some embodiments, in normal mode, such as Figure 3A As illustrated, panel driver 120 can drive multiple ordinary subpixels (NSPs) and multiple privacy subpixels (PSPs), causing multiple ordinary subpixels (NSPs) with relatively wide viewing angles (e.g., ordinary red subpixels (NRSPs), ordinary green subpixels (NGSPs), and ordinary blue subpixels (NBSPs)) to emit light, and multiple privacy subpixels (PSPs) with relatively narrow viewing angles (e.g., privacy red subpixels (PRSPs), privacy green subpixels (PGSPs), and privacy blue subpixels (PBSPs)) to emit light. For example, controller 160 of panel driver 120 can provide first output image data ODAT1 for the multiple ordinary subpixels (NSPs) and multiple privacy subpixels (PSPs) to data driver 150. Data driver 150 can provide data signal DS to the multiple ordinary subpixels (NSPs) and multiple privacy subpixels (PSPs) based on the first output image data ODAT1, and the multiple ordinary subpixels (NSPs) and multiple privacy subpixels (PSPs) can emit light based on data signal DS. Therefore, the image displayed by display device 100 can be viewed by both a first user located in front of display device 100 and a second user located to the side of display device 100.

[0055] In other embodiments, in normal mode, such as Figure 3B As illustrated, panel driver 120 can drive only a plurality of ordinary sub-pixels NSP, causing multiple ordinary sub-pixels NSP with relatively wide viewing angles (e.g., ordinary red sub-pixels NRSP, ordinary green sub-pixels NGSP, and ordinary blue sub-pixels NBSP) to emit light, while multiple privacy sub-pixels PSP do not emit light. For example, controller 160 of panel driver 120 can provide first output image data ODAT1 for the multiple ordinary sub-pixels NSP to data driver 150, data driver 150 can provide data signal DS to the multiple ordinary sub-pixels NSP based on the first output image data ODAT1, and the multiple ordinary sub-pixels NSP can emit light based on data signal DS. Because the multiple ordinary sub-pixels NSP with relatively wide viewing angles emit light, the image displayed by display device 100 can be viewed by both a first user located in front of display device 100 and a second user located to the side of display device 100. In this configuration, the first output image data ODAT1 can represent the minimum gray level (e.g., 0 gray level) of the plurality of privacy sub-pixels PSP, and the data driver 150 may not provide a data signal DS to the plurality of privacy sub-pixels PSP, or it may provide a data signal DS corresponding to the minimum gray level. Therefore, the plurality of privacy sub-pixels PSP may not emit light.

[0056] In addition, in privacy mode, such as Figure 4 As illustrated, panel driver 120 can drive only a plurality of privacy subpixels PSP, causing a plurality of ordinary subpixels NSP with a relatively wide viewing angle to remain non-illuminating, and a plurality of privacy subpixels PSP with a relatively narrow viewing angle (e.g., privacy red subpixel PRSP, privacy green subpixel PGSP, and privacy blue subpixel PBSP) to illuminate. For example, controller 160 of panel driver 120 can provide second output image data ODAT2 for the plurality of privacy subpixels PSP to data driver 150, data driver 150 can provide data signal DS to the plurality of privacy subpixels PSP based on second output image data ODAT2, and the plurality of privacy subpixels PSP can illuminate based on data signal DS. In this case, since only the plurality of privacy subpixels PSP with a relatively narrow viewing angle illuminate, the image displayed by display device 100 can be viewed by a first user located in front of display device 100, but not by a second user located to the side of display device 100. In this configuration, the second output image data ODAT2 can represent the minimum gray level of the plurality of ordinary sub-pixels NSP, and the data driver 150 may not provide a data signal DS to the plurality of ordinary sub-pixels NSP, or it may provide a data signal DS corresponding to the minimum gray level. Therefore, the plurality of ordinary sub-pixels NSP may not emit light.

[0057] However, in privacy modes where only multiple privacy subpixels PSP are driven (and / or as...) Figure 3B In the normal mode illustrated in the diagram, where only multiple ordinary subpixels (NSPs) are driven, and conventional rendering operations are performed only on the input image data IDAT, color shifts (e.g., slight red shifts and / or slight green shifts) may occur in the image displayed by the display device 100. For example, as shown in the diagram... Figure 5 As illustrated in the diagram, the input image data IDAT can include red subpixel data RD, green subpixel data GD, and blue subpixel data BD representing the minimum gray level (e.g., 0 gray level) for odd-numbered pixel rows PR1 and PR3, and can include red subpixel data RD, green subpixel data GD, and blue subpixel data BD representing the maximum gray level (e.g., 255 gray level) for even-numbered pixel rows PR2 and PR4. Conventional display devices can... Figure 5 The input image data illustrated in the diagram is used by IDAT to perform pixel arrangement rendering operations to generate... Figure 6A The image data PAR_DAT shown in the diagram is illustrated here. See the following reference. Figure 9 The described pixel arrangement rendering operation can convert image data (such as...) corresponding to a second pixel arrangement structure (e.g., a striped pixel arrangement structure). Figure 5 (as shown in the diagram) is converted to a structure similar to the first pixel arrangement (e.g., DIAMOND PIXEL). ® Image data corresponding to the pixel arrangement structure. Furthermore, in privacy mode, conventional display devices can perform privacy rendering operations on the image data PAR_DAT that has undergone pixel arrangement rendering operations to generate... Figure 6B The image data PAR_PVR_DAT is shown in the diagram. See the following reference. Figure 11 The described privacy rendering operation can convert the subpixel data of multiple ordinary subpixel NSPs into minimum-level data representing the smallest gray level (e.g., 0 gray level). That is, in conventional display devices, by... Figure 5 The image data PAR_PVR_DAT generated by performing pixel arrangement rendering and privacy rendering operations on the input image data IDAT corresponding to the black and white image illustrated in the figure can include green sub-pixel data GD and blue sub-pixel data BD representing the minimum gray level (e.g., 0 gray level) and red sub-pixel data RD representing the maximum gray level (e.g., 255 gray level). In this case, a conventional display device can be based on Figure 6B The image data PAR_PVR_DAT shown in the diagram displays a red image. This means that a color shift (e.g., a slight red shift) may occur in images displayed on conventional display devices.

[0058] However, in order to prevent or reduce color shift, the display device 100 according to the embodiment may perform a resolution reduction rendering operation on the input image data IDAT. Here, as referenced below... Figures 10A to 10E The described resolution reduction rendering operation can adjust the data of each sub-pixel included in the input image data IDAT based on neighboring sub-pixel data. In some embodiments, as referenced below... Figures 8 to 11 As described, the controller 160 of the panel driver 120 can generate first output image data ODAT1 in normal mode by performing a pixel arrangement rendering operation on the input image data IDAT, and can generate second output image data ODAT2 in privacy mode by performing a resolution reduction rendering operation, a pixel arrangement rendering operation, and a privacy rendering operation on the input image data IDAT. In other embodiments, as referenced below... Figure 12 and Figure 13 As described, the controller 160 of the panel driver 120 can generate first output image data ODAT1 in normal mode by performing resolution reduction rendering, pixel arrangement rendering, and normal rendering operations on the input image data IDAT, and can generate second output image data ODAT2 in privacy mode by performing resolution reduction rendering, pixel arrangement rendering, and privacy rendering operations on the input image data IDAT. In some embodiments, the controller 160 of the panel driver 120 may include a resolution reduction rendering block 170, a pixel arrangement rendering block 180, and a mode rendering block 190.

[0059] The resolution reduction rendering block 170 can perform a resolution reduction rendering operation in privacy mode, adjusting each sub-pixel data included in the input image data IDAT based on neighboring sub-pixel data. According to an embodiment, the resolution reduction rendering operation can be based on two horizontally adjacent sub-pixel data (as referenced below). Figure 10A (Described), based on two vertically adjacent sub-pixel data (as described in the following reference) Figure 10B (Described), based on sub-pixel data from four horizontal and vertical neighbors (as described in the following reference) Figure 10C (Described), based on sub-pixel data from four diagonally adjacent pixels (as referenced below) Figure 10D (Described) or based on eight neighboring sub-pixel data (as described below) Figure 10E (Description) to adjust the data for each subpixel. For example, reducing the resolution of rendering block 170 can... Figure 5 The diagram illustrates the execution of each sub-pixel data (RD, GD, and BD) of the input image data IDAT. Figure 10E The image shows a resolution reduction rendering operation to generate... Figure 7AThe image data RRR_DAT shown in the diagram. The image data RRR_DAT that has undergone the above resolution downscaling rendering operation can include red subpixel data RD, green subpixel data GD, and blue subpixel data BD representing 128 gray levels, 96 gray levels, 64 gray levels, or 48 gray levels. (See the following reference...) Figure 12 and Figure 13 In the described embodiment, the resolution reduction rendering block 170 can perform resolution reduction rendering operations on the input image data IDAT not only in privacy mode but also in normal mode.

[0060] The pixel arrangement rendering block 180 can perform pixel arrangement rendering operations in both normal and privacy modes. The pixel arrangement rendering operation can convert image data corresponding to a second pixel arrangement structure (e.g., a striped pixel arrangement structure) into data corresponding to a first pixel arrangement structure (e.g., a DIAMOND PIXEL). ® Image data corresponding to the pixel arrangement structure. In some embodiments, the pixel arrangement rendering operation may be referred to as PENTILE. ® Rendering operations. See the following reference... Figures 8 to 11 In the described embodiment, the pixel arrangement rendering block 180 can perform pixel arrangement rendering operations on the input image data IDAT in normal mode, and can perform pixel arrangement rendering operations on the image data RRR_DAT that has undergone resolution downscaling in privacy mode. For example, in privacy mode, the pixel arrangement rendering block 180 can perform pixel arrangement rendering operations on the input image data IDAT that has undergone resolution downscaling. Figure 7A The image data RRR_DAT shown in the diagram undergoes pixel arrangement rendering operations to generate... Figure 7B The image data RRR_PAR_DAT shown in the diagram. Image data RRR_PAR_DAT that has undergone resolution downscaling and pixel arrangement rendering operations can be used for... Figure 2 The first pixel arrangement structure of the display panel 110 shown in the figure or DIAMOND PIXEL ® The arrangement structure may include red sub-pixel data RD representing 24, 48, 64, 112, or 128 gray levels; green sub-pixel data GD representing 48, 64, 96, or 128 gray levels; and blue sub-pixel data BD representing 48, 56, 112, or 128 gray levels. (See the following reference...) Figure 12 and Figure 13 In the described embodiment, the pixel arrangement rendering block 180 can perform pixel arrangement rendering operations on image data RRR_DAT that has undergone resolution down-rendering operations in both normal mode and privacy mode.

[0061] The mode rendering block 190 can generate a second output image data ODAT2 by performing a privacy rendering operation on image data RRR_PAR_DAT that has undergone resolution downscaling and pixel arrangement rendering operations in privacy mode. The privacy rendering operation can convert the sub-pixel data of multiple ordinary sub-pixels NSPs that have undergone resolution downscaling and pixel arrangement rendering operations within the sub-pixel data of the image data RRR_PAR_DAT into minimum-level data representing the minimum gray level (e.g., 0 gray level). For example, in privacy mode, the mode rendering block 190 can... Figure 7B The image data RRR_PAR_DAT shown in the diagram is used to perform privacy rendering operations to generate... Figure 7C The image data shown in the diagram is RRR_PAR_PVR_DAT, or the second output image data ODAT2 used for multiple privacy subpixels PSP. For example... Figure 7C As illustrated in the diagram, the image data RRR_PAR_PVR_DAT, which has undergone resolution reduction rendering, pixel arrangement rendering, and privacy rendering operations, can include red subpixel data RD, green subpixel data GD, and blue subpixel data BD representing 0 gray levels for multiple ordinary subpixels NSP, and can also include red subpixel data RD, green subpixel data GD, and blue subpixel data BD representing 48, 56, 64, 96, 112, or 128 gray levels for multiple privacy subpixels PSP arranged in a diamond shape PDS. Therefore, with... Figure 6B In the diagram, all the green sub-pixel data GD and blue sub-pixel data BD represent different PAR_PVR_DAT values ​​for 0 grayscale image data. Figure 7C The image data RRR_PAR_PVR_DAT illustrated in the figure may include green subpixel data GD and blue subpixel data BD representing 48, 56, 64, 96, 112, or 128 gray levels for multiple privacy subpixels PSP. Therefore, in the display device 100 according to the embodiment, color shift phenomena (e.g., red shift and / or green shift) can be prevented or reduced even in privacy mode. See the following references... Figure 12 and Figure 13 In the described embodiment, in normal mode, the mode rendering block 190 can perform a normal rendering operation that converts the subpixel data of a plurality of privacy subpixels PSP into minimum level data representing the minimum gray level of image data RRR_PAR_DAT with respect to the resolution reduction rendering operation and the pixel arrangement rendering operation performed.

[0062] As described above, the display device 100 according to the embodiment can perform a resolution reduction rendering operation on the input image data IDAT. Therefore, in the display device 100 according to the embodiment, color shift can be prevented or reduced in privacy mode and / or normal mode.

[0063] Figure 8 This is a flowchart illustrating a method of operating the display device according to an embodiment. Figure 9 This is a diagram used to illustrate an example of pixel arrangement rendering operations according to an embodiment. Figures 10A to 10E This is a diagram used to illustrate an example of a resolution reduction rendering operation according to an embodiment, and Figure 11 This is a diagram used to describe an example of privacy rendering operations according to an embodiment.

[0064] refer to Figure 1 and Figure 8 The panel driver 120 of the display device 100 can receive input image data IDAT corresponding to the strip pixel arrangement structure (step S205). When the display device 100 is in normal mode or when the mode signal SMODE indicates normal mode (step S210: normal mode), the panel driver 120 can perform pixel arrangement rendering operation on the input image data IDAT corresponding to the strip pixel arrangement structure to generate a pixel arrangement rendering operation corresponding to DIAMOND PIXEL. ® Arrange the first output image data ODAT1 corresponding to the structure (step S230).

[0065] In some embodiments, the pixel arrangement rendering operation can generate subpixel data of a normal red subpixel or a privacy red subpixel based on two adjacent red subpixel data included in the input image data IDAT, determine each green subpixel data included in the input image data IDAT as subpixel data of a normal green subpixel or a privacy green subpixel, and generate subpixel data of a normal blue subpixel or a privacy blue subpixel based on two adjacent blue subpixel data included in the input image data IDAT. For example, as Figure 9As illustrated in the diagram, the input image data IDAT may include first red subpixel data RD1, first green subpixel data GD1, and first blue subpixel data BD1 (where M is an integer greater than or equal to 1 and N is an integer greater than or equal to 2) of the pixel located in the Mth pixel row PRM and Nth pixel column PCN-1; second red subpixel data RD2, second green subpixel data GD2, and second blue subpixel data BD2 of the pixel located in the Mth pixel row PRM and Nth pixel column PCN; and third red subpixel data RD3, third green subpixel data GD3, and third blue subpixel data BD3 of the pixel located in the Mth pixel row PRM and N+1th pixel column PCN+1. The panel driver 120 may perform a pixel arrangement rendering operation on the input image data IDAT to generate image data PAR_DAT. In the display panel 110, when the pixels located in the Mth pixel row PRM and the Nth pixel column PCN include (normal or privacy) red sub-pixels and (normal or privacy) green sub-pixels, the image data PAR_DAT for which pixel arrangement rendering operation has been performed can correspond to half the sum of the first red sub-pixel data RD1 and the second red sub-pixel data RD2 for red sub-pixels, and can correspond to the second green sub-pixel data GD2 for green sub-pixels. Furthermore, in the display panel 110, when the pixels located in the Mth pixel row PRM and the N+1th pixel column PCN+1 include (normal or privacy) blue sub-pixels and (normal or privacy) green sub-pixels, the image data PAR_DAT for which pixel arrangement rendering operation has been performed can correspond to half the sum of the second blue sub-pixel data BD2 and the third blue sub-pixel data BD3 for blue sub-pixels, and can correspond to the third green sub-pixel data GD3 for green sub-pixels. Although in Figure 9 The diagram illustrates an example of pixel arrangement rendering operations, but the pixel arrangement rendering operations according to the embodiments are not limited to... Figure 9 Examples.

[0066] The panel driver 120 can drive a plurality of normal subpixels NSP with a relatively wide viewing angle and a plurality of privacy subpixels PSP with a relatively narrow viewing angle based on the first output image data ODAT1 generated by performing a pixel arrangement rendering operation on the input image data IDAT (step S250). Therefore, the image displayed in normal mode can be viewed by both a first user located in front of the display device 100 and a second user located to the side of the display device 100.

[0067] When the display device 100 is in privacy mode or when the mode signal SMODE indicates privacy mode (step S210: privacy mode), the panel driver 120 can perform a resolution reduction rendering operation based on the neighboring sub-pixel data to adjust the resolution of each sub-pixel data included in the input image data IDAT (step S260). Through the resolution reduction rendering operation, each sub-pixel data can be adjusted to an intermediate value, and the image can be blurred. Therefore, the resolution reduction rendering operation can have, but is not limited to, the effect of reducing the resolution of the image.

[0068] In some embodiments, during a resolution reduction rendering operation, the panel driver 120 may adjust each red subpixel data based on two red subpixel data horizontally adjacent to each red subpixel data included in the input image data IDAT, adjust each green subpixel data based on two green subpixel data horizontally adjacent to each green subpixel data included in the input image data IDAT, and adjust each blue subpixel data based on two blue subpixel data horizontally adjacent to each blue subpixel data included in the input image data IDAT. For example, as... Figure 10A As illustrated, panel driver 120 can perform a resolution reduction rendering operation on input image data IDAT to generate image data RRR_DATa, and the green subpixel data GDa included in the image data RRR_DATa can be calculated as "a1×GD1a+a2×GD2a+a3×GD3a". Here, a1, a2, and a3 are coefficients, and GD1a, GD2a, and GD3a can be the green subpixel data included in the input image data IDAT. Furthermore, for example, a1 can be, but is not limited to, about 0.5, and each of a2 and a3 can be, but is not limited to, about 0.25. Therefore, by reducing the resolution during rendering, the green subpixel data GD1a in the M-th pixel row PRM and the N-th pixel column PCN can be adjusted to green subpixel data GDa or "0.5×GD1a+0.25×GD2a+0.25×GD3a" based on the two horizontally adjacent green subpixel data GD2a and GD3a. Although Figure 10A The illustration shows an example where the green subpixel data GD1a is adjusted, but the red subpixel data RD or the blue subpixel data BD can also be adjusted based on the horizontally adjacent red or blue subpixel data respectively through a resolution reduction rendering operation.

[0069] In other embodiments, during a resolution reduction rendering operation, the panel driver 120 may adjust each red subpixel data based on two red subpixel data perpendicularly adjacent to each red subpixel data included in the input image data IDAT, adjust each green subpixel data based on two green subpixel data perpendicularly adjacent to each green subpixel data included in the input image data IDAT, and adjust each blue subpixel data based on two blue subpixel data perpendicularly adjacent to each blue subpixel data included in the input image data IDAT. For example, as... Figure 10B As illustrated, panel driver 120 can perform a resolution reduction rendering operation on input image data IDAT to generate image data RRR_DATb, and the green subpixel data GDb included in the image data RRR_DATb can be calculated as "b1×GD1b+b2×GD2b+b3×GD3b". Here, b1, b2, and b3 can be coefficients, and GD1b, GD2b, and GD3b can be the green subpixel data included in the input image data IDAT. Furthermore, for example, b1 can be, but is not limited to, about 0.5, and each of b2 and b3 can be, but is not limited to, about 0.25. Therefore, through resolution reduction rendering operations, the green subpixel data GD1b in the M-th pixel row PRM and the N-th pixel column PCN can be adjusted to the green subpixel data GDb or "0.5×GD1b+0.25×GD2b+0.25×GD3b" based on the two green subpixel data GD2b and GD3b that are vertically adjacent to the green subpixel data GD1b. Although Figure 10B The illustration shows an example where the green subpixel data GD1a is adjusted, but the red subpixel data RD or the blue subpixel data BD can also be adjusted based on the vertically adjacent red subpixel data or blue subpixel data respectively through a resolution reduction rendering operation.

[0070] In other embodiments, during a resolution reduction rendering operation, the panel driver 120 can adjust each red subpixel data based on the four horizontally and vertically adjacent red subpixel data of each red subpixel data included in the input image data IDAT, adjust each green subpixel data based on the four horizontally and vertically adjacent green subpixel data of each green subpixel data included in the input image data IDAT, and adjust each blue subpixel data based on the four horizontally and vertically adjacent blue subpixel data of each blue subpixel data included in the input image data IDAT. For example, as... Figure 10CAs illustrated, panel driver 120 can perform a resolution reduction rendering operation on input image data IDAT to generate image data RRR_DATc, and the green subpixel data GDc included in the image data RRR_DATc can be calculated as "c1×GD1c+c2×GD2c+c3×GD3c+c4×GD4c+c5×GD5c". Here, c1, c2, c3, c4, and c5 are coefficients, and GD1c, GD2c, GD3c, GD4c, and GD5c can be the green subpixel data included in the input image data IDAT. Furthermore, for example, c1 can be, but is not limited to, about 0.5, and each of c2, c3, c4, and c5 can be, but is not limited to, about 0.125. Therefore, by reducing the resolution during rendering, the green subpixel data GD1c in the M-th pixel row PRM and the N-th pixel column PCN can be adjusted to the green subpixel data GDc or "0.5×GD1c+0.125×GD2c+0.125×GD3c+0.125×GD4c+0.125×GD5c" based on the four green subpixel data GD2c, GD3c, GD4c, and GD5c that are horizontally and vertically adjacent to the green subpixel data GD1c. Although Figure 10C The illustration shows an example where the green subpixel data GD1c is adjusted, but the red subpixel data RD or the blue subpixel data BD can also be adjusted based on the horizontally and vertically adjacent red or blue subpixel data, respectively, through a resolution reduction rendering operation.

[0071] In other embodiments, during a resolution reduction rendering operation, the panel driver 120 may adjust each red subpixel data based on four red subpixel data adjacent to the diagonal line of each red subpixel data included in the input image data IDAT, adjust each green subpixel data based on four green subpixel data adjacent to the diagonal line of each green subpixel data included in the input image data IDAT, and adjust each blue subpixel data based on four blue subpixel data adjacent to the diagonal line of each blue subpixel data included in the input image data IDAT. For example, as... Figure 10DAs illustrated, panel driver 120 can perform a resolution reduction rendering operation on input image data IDAT to generate image data RRR_DATd, and the green subpixel data GDd included in the image data RRR_DATd can be calculated as "d1×GD1d+d2×GD2d+d3×GD3d+d4×GD4d+d5×GD5d". Here, d1, d2, d3, d4, and d5 can be coefficients, and GD1d, GD2d, GD3d, GD4d, and GD5d can be the green subpixel data included in the input image data IDAT. Furthermore, for example, d1 can be, but is not limited to, about 0.5, and each of d2, d3, d4, and d5 can be, but is not limited to, about 0.125. Therefore, by reducing the resolution during rendering, the green subpixel data GD1d in the M-th pixel row PRM and the N-th pixel column PCN can be adjusted to green subpixel data GDd or "0.5×GD1d+0.125×GD2d+0.125×GD3d+0.125×GD4d+0.125×GD5d" based on the green subpixel data GD2d, GD3d, GD4d, and GD5d that are diagonally adjacent to the green subpixel data GD1d. Although Figure 10D The illustration shows an example where the green subpixel data GD1d is adjusted, but the red subpixel data RD or the blue subpixel data BD can also be adjusted based on the red or blue subpixel data adjacent to the diagonal line, respectively, through a resolution reduction rendering operation.

[0072] In other embodiments, during a resolution reduction rendering operation, the panel driver 120 can adjust each red subpixel data based on eight red subpixel data horizontally, vertically, and diagonally adjacent to each red subpixel data included in the input image data IDAT; it can adjust each green subpixel data based on eight green subpixel data horizontally, vertically, and diagonally adjacent to each green subpixel data included in the input image data IDAT; and it can adjust each blue subpixel data based on eight blue subpixel data horizontally, vertically, and diagonally adjacent to each blue subpixel data included in the input image data IDAT. For example, as... Figure 10EAs illustrated in the diagram, the panel driver 120 can perform a resolution reduction rendering operation on the input image data IDAT to generate image data RRR_DATe, and the green subpixel data GDe included in the image data RRR_DATe can be calculated as "e1×GD1e+e2×GD2e+e3×GD3e+e4×GD4e+e5×GD5e+e6×GD6e+e7×GD7e+e8×GD8e+e9×GD9e". Here, e1, e2, e3, e4, e5, e6, e7, e8, and e9 can be coefficients, and GD1e, GD2e, GD3e, GD4e, GD5e, GD6e, GD7e, GD8e, and GD9e can be the green subpixel data included in the input image data IDAT. Furthermore, for example, e1 can be, but is not limited to, about 0.25, each of e2, e3, e4 and e5 can be, but is not limited to, about 0.125, and each of e6, e7, e8 and e9 can be, but is not limited to, about 0.0625. Therefore, by reducing the resolution during rendering, the green subpixel data GD1e in the M-th pixel row PRM and the N-th pixel column PCN can be adjusted to green subpixel data GDe or "0.25×GD1e+0.125×GD2e+0.125×GD3e+0.125×GD4e+0.125×GD5e+0.0625×GD6e+0.0625×GD7e+0.0625×GD8e+0.0625×GD9e" based on the eight green subpixel data GD2e, GD3e, GD4e, GD5e, GD6e, GD7e, GD8e, and GD9e that are horizontally, vertically, and diagonally adjacent to the green subpixel data GD1e. Although Figure 10E The illustration shows an example where the green subpixel data GD1e is adjusted, but the red subpixel data RD or the blue subpixel data BD can also be adjusted based on the horizontal, vertical, and diagonal adjacent red or blue subpixel data, respectively, through a resolution reduction rendering operation.

[0073] like Figure 11 As illustrated in the figure, the panel driver 120 can perform pixel arrangement rendering operations on image data RRR_DATa, RRR_DATb, RRR_DATc, RRR_DATd, and RRR_DATe that have undergone resolution reduction rendering operations (step S270), and can generate second output image data ODAT2 by performing privacy rendering operations on image data RRR_PAR_DAT that have undergone resolution reduction rendering operations and pixel arrangement rendering operations (step S280).

[0074] For example, such as Figure 11As illustrated in the diagram, the image data RRR_PAR_DAT that has undergone resolution downscaling and pixel arrangement rendering operations can include data for... Figure 2 The diagram shows the ordinary red subpixel data NRD, ordinary green subpixel data NGSP, and ordinary blue subpixel data NBSP, as well as the ordinary red subpixel data NRD, ordinary green subpixel data NGD, and ordinary blue subpixel data NBD. Figure 2 The privacy red subpixel data PRSP, privacy green subpixel data PGSP, and privacy blue subpixel data PBSP shown in the diagram are the privacy red subpixel data PRD, privacy green subpixel data PGD, and privacy blue subpixel data PBD. Panel driver 120 can perform a privacy rendering operation that converts the ordinary red subpixel data NRD, ordinary green subpixel data NGD, and ordinary blue subpixel data NBD included in the image data RRR_PAR_DAT into minimum-level data representing the minimum gray level (e.g., 0 gray level) to generate a second output image data ODAT2. Therefore, the second output image data ODAT2 or the image data RRR_PAR_PVR_DAT that has undergone resolution reduction rendering, pixel arrangement rendering, and privacy rendering operations can include privacy red subpixel data PRD, privacy green subpixel data PGSP, and privacy blue subpixel data PBD for privacy red subpixels PRSP, privacy green subpixels PGSP, and privacy blue subpixels PBSP arranged in a diamond shape PDS, but can represent 0 grayscale with respect to ordinary red subpixels NRSP, ordinary green subpixels NGSP, and ordinary blue subpixels NBSP.

[0075] The panel driver 120 can drive a plurality of privacy sub-pixels PSPs with a relatively narrow viewing angle based on second output image data ODAT2 generated by performing resolution reduction rendering, pixel arrangement rendering, and privacy rendering operations on input image data IDAT (step S290). Therefore, the plurality of privacy sub-pixels PSPs with a relatively narrow viewing angle can emit light. However, since the second output image data ODAT2 represents a 0 gray level with respect to a plurality of ordinary sub-pixels NSPs with a relatively wide viewing angle, the plurality of ordinary sub-pixels NSPs with a relatively wide viewing angle can not emit light. Therefore, the image displayed in privacy mode can be viewed by a first user located in front of the display device 100, but not by a second user located to the side of the display device 100.

[0076] As described above, in the method of operating the display device 100 according to the embodiment, in privacy mode, a resolution reduction rendering operation can be performed on the input image data IDAT. Therefore, color shift can be prevented or reduced in privacy mode.

[0077] Figure 12 This is a flowchart illustrating a method of operating the display device according to an embodiment, and Figure 13 This is a diagram used to describe an example of a common rendering operation according to an embodiment.

[0078] refer to Figure 1 and Figure 12 The panel driver 120 of the display device 100 can receive input image data IDAT (step S305). When the display device 100 is in normal mode or when the mode signal SMODE indicates normal mode (step S310: normal mode), the panel driver 120 can perform a resolution reduction rendering operation based on neighboring sub-pixel data to adjust the resolution of each sub-pixel data included in the input image data IDAT (step S320), perform a pixel arrangement rendering operation on the input image data IDAT that has undergone the resolution reduction rendering operation (step S330), and perform a normal rendering operation on the input image data IDAT that has undergone both the resolution reduction rendering operation and the pixel arrangement rendering operation to generate the first output image data ODAT1 (step S340). For example, the resolution reduction rendering operation can correspond to the above reference. Figures 10A to 10E The described resolution reduction rendering operation, and the pixel arrangement rendering operation, can correspond to the above reference. Figure 9 The pixel arrangement rendering operation is described.

[0079] For example, such as Figure 13 As illustrated in the diagram, the image data RRR_PAR_DAT that has undergone resolution downscaling and pixel arrangement rendering operations can include data for... Figure 2 The diagram shows the ordinary red subpixel data NRD, ordinary green subpixel data NGSP, and ordinary blue subpixel data NBSP, as well as the ordinary red subpixel data NRD, ordinary green subpixel data NGD, and ordinary blue subpixel data NBD. Figure 2The privacy red subpixel data PRD, privacy green subpixel data PGD, and privacy blue subpixel data PBD of the privacy red subpixel PRSP, privacy green subpixel PGSP, and privacy blue subpixel PBSP illustrated in the diagram. Panel driver 120 can perform a normal rendering operation to convert the privacy red subpixel data PRD, privacy green subpixel data PGD, and privacy blue subpixel data PBD included in image data RRR_PAR_DAT into minimum-level data representing the minimum gray level (e.g., 0 gray level) to generate first output image data ODAT1. Therefore, the first output image data ODAT1, or image data RRR_PAR_NR_DAT that has undergone resolution reduction rendering, pixel arrangement rendering, and normal rendering operations, can include the privacy red subpixel data NRD, privacy green subpixel data NGSP, and privacy blue subpixel NBSP arranged in a diamond-shaped NDS, but can represent 0 gray level with respect to the privacy red subpixel PRSP, privacy green subpixel PGSP, and privacy blue subpixel PBSP.

[0080] The panel driver 120 can drive a plurality of ordinary sub-pixels NSP with a relatively wide viewing angle based on first output image data ODAT1 generated by performing a resolution reduction rendering operation, a pixel arrangement rendering operation, and a normal rendering operation on the input image data IDAT (step S350). Therefore, the plurality of ordinary sub-pixels NSP with a relatively wide viewing angle can emit light, and the image displayed in normal mode can be viewed by both a first user located in front of the display device 100 and a second user located to the side of the display device 100. Since the first output image data ODAT1 represents a 0 gray level with respect to a plurality of privacy sub-pixels PSP with a relatively narrow viewing angle, the plurality of privacy sub-pixels PSP with a relatively narrow viewing angle can not emit light.

[0081] When the display device 100 is in privacy mode or when the mode signal SMODE indicates privacy mode (step S310: privacy mode), the panel driver 120 can perform a resolution reduction rendering operation on the input image data IDAT (step S360), perform a pixel arrangement rendering operation on the input image data IDAT that has undergone the resolution reduction rendering operation (step S370), and perform a privacy rendering operation on the input image data IDAT that has undergone both the resolution reduction rendering operation and the pixel arrangement rendering operation to generate a second output image data ODAT2 (step S380).

[0082] The panel driver 120 can drive a plurality of privacy sub-pixels PSPs with a relatively narrow viewing angle based on second output image data ODAT2 generated by performing resolution reduction rendering, pixel arrangement rendering, and privacy rendering operations on input image data IDAT (step S390). Therefore, the plurality of privacy sub-pixels PSPs with a relatively narrow viewing angle can emit light, while the plurality of ordinary sub-pixels NSPs with a relatively wide viewing angle can remain unlit. Thus, the image displayed in privacy mode can be viewed by a first user located in front of the display device 100, but not by a second user located to the side of the display device 100.

[0083] As described above, in the method of operating the display device 100 according to the embodiment, a resolution reduction rendering operation can be performed on the input image data IDAT in both normal mode and privacy mode. Therefore, color shift can be prevented or reduced in both normal mode and privacy mode.

[0084] Figure 14 This is a block diagram illustrating an electronic device including a display device according to an embodiment.

[0085] refer to Figure 14 Electronic device 1100 may include a processor 1110, a memory device 1120, a storage device 1130, an input / output (I / O) device 1140, a power supply 1150, and a display device 1160. Electronic device 1100 may further include multiple ports for communicating with video cards, sound cards, memory cards, universal serial bus (“USB”) devices, other electronic devices, etc.

[0086] Processor 1110 can perform various computing functions or tasks. Processor 1110 can be an application processor (“AP”), a microprocessor, a central processing unit (“CPU”), etc. Processor 1110 can be coupled to other components via address buses, control buses, data buses, etc. In addition, in some embodiments, processor 1110 can be further coupled to an expansion bus such as a peripheral component interconnect (“PCI”) bus.

[0087] The memory device 1120 may store data for the operation of the electronic device 1100. For example, the memory device 1120 may include at least one non-volatile memory device such as an erasable programmable read-only memory (“EPROM”) device, an electrically erasable programmable read-only memory (“EEPROM”) device, a flash memory device, a phase-change random access memory (“PRAM”) device, a resistive random access memory (“RRAM”) device, a nano-floating gate memory (“NFGM”) device, a polymer random access memory (“PoRAM”) device, a magnetic random access memory (“MRAM”) device, a ferroelectric random access memory (“FRAM”) device, and / or at least one volatile memory device such as a dynamic random access memory (“DRAM”) device, a static random access memory (“SRAM”) device, a mobile dynamic random access memory (“mobile DRAM”) device, and so on.

[0088] Storage device 1130 may be a solid-state drive (“SSD”) device, a hard disk drive (“HDD”) device, an optical disc read-only memory (“CD-ROM”) device, etc. I / O device 1140 may be an input device such as a keyboard, keypad, mouse, touchscreen, etc., and an output device such as a printer, speaker, etc. Power supply 1150 provides power for the operation of electronic device 1100. Display device 1160 may be coupled to other components via a bus or other communication link.

[0089] The display device 1160 can receive input image data and a mode signal from the processor 1110. When the mode signal indicates a privacy mode, the display device 1160 can perform resolution reduction rendering, pixel arrangement rendering, and privacy rendering operations on the input image data to generate output image data, and can drive only a number of privacy sub-pixels based on the output image data. Therefore, color shift can be prevented or reduced in privacy mode (and / or normal mode).

[0090] The inventive concept can be applied to any electronic device 1100 including display device 1160. For example, the inventive concept can be applied to mobile phones, smartphones, televisions (“TV”) (e.g., digital TV, three-dimensional (“3D” TV, etc.), virtual reality (“VR”) devices, augmented reality (“AR”) devices, mixed reality (“MR”) devices, extended reality (“XR”) devices, wearable electronic devices, personal computers (“PC”) (e.g., laptop computers, tablet computers, etc.), home appliances, personal digital assistants (“PDAs”), portable multimedia players (“PMPs”), digital cameras, music players, portable game consoles, navigation devices, etc.

[0091] Figure 15This is a block diagram illustrating an example of an electronic device according to an embodiment.

[0092] The electronic device 2101 can output various information via the display module 2140 in the operating system. When the processor 2110 executes the application stored in the memory 2120, the display module 2140 can provide application information to the user via the display panel 2141.

[0093] Processor 2110 can obtain external input via input module 2130 or sensor module 2161, and can execute applications corresponding to the external input. For example, when a user selects the camera icon displayed on display panel 2141, processor 2110 can obtain user input via input sensor 2161-2 and can activate camera module 2171. Processor 2110 can transmit image data corresponding to the image captured by camera module 2171 to display module 2140. Display module 2140 can display the image corresponding to the captured image via display panel 2141.

[0094] As another example, when personal information authentication is performed in display module 2140, fingerprint sensor 2161-1 can obtain input fingerprint information as input data. Processor 2110 can compare the input data obtained by fingerprint sensor 2161-1 with authentication data stored in memory 2120, and can execute the application based on the comparison result. Display module 2140 can display the information executed according to the application logic via display panel 2141.

[0095] As another example, when a music stream icon displayed on display module 2140 is selected, processor 2110 obtains user input via input sensor 2161-2 and can activate the music stream application stored in memory 2120. When a music execution command is input in the music stream application, processor 2110 can activate sound output module 2163 to provide the user with sound information corresponding to the music execution command.

[0096] The operation of electronic device 2101 has been briefly described above. The configuration of electronic device 2101 will be described in detail below. Some components of electronic device 2101 described below may be integrated and provided as a single component, or a single component may be provided separately as two or more components.

[0097] refer to Figure 15Electronic device 2101 can communicate with external electronic device 2102 via a network (e.g., a short-range wireless communication network or a long-range wireless communication network). In some embodiments, electronic device 2101 may include processor 2110, memory 2120, input module 2130, display module 2140, power management module 2150, internal module 2160, and external module 2170. In some embodiments, at least one of the components may be omitted from electronic device 2101, or one or more other components may be added to electronic device 2101. In some embodiments, some of the components (e.g., sensor module 2161, antenna module 2162, or sound output module 2163) may be implemented as a single component (e.g., display module 2140).

[0098] Processor 2110 can execute software to control at least one other component (e.g., hardware or software component) of electronic device 2101 coupled to processor 2110, and can perform various data processing or calculations. According to some embodiments, as at least part of data processing or calculation, processor 2110 can store commands or data received from another component (e.g., input module 2130, sensor module 2161, or communication module 2173) in volatile memory 2121, can process commands or data stored in volatile memory 2121, and can store the resulting data in non-volatile memory 2122.

[0099] Processor 2110 may include a main processor 2111 and an auxiliary processor 2112. Main processor 2111 may include one or more of a central processing unit (“CPU”) 2111-1 and an application processor (“AP”). Main processor 2111 may further include any one or more of a graphics processing unit (“GPU”) 2111-2, a communication processor (“CP”), and an image signal processor (“ISP”). Main processor 2111 may further include a neural processing unit (“NPU”) 2111-3. NPU 2111-3 may be a processor specifically designed to process artificial intelligence models, and the artificial intelligence models may be generated through machine learning. The artificial intelligence model may include multiple layers of artificial neural networks. The artificial neural networks may be deep neural networks (“DNN”), convolutional neural networks (“CNN”), recurrent neural networks (“RNN”), restricted Boltzmann machines (“RBM”), deep belief networks (“DBN”), bidirectional recurrent deep neural networks (“BRDNN”), deep Q-networks, or combinations of two or more of these, but are not limited thereto. Additionally or alternatively, the artificial intelligence model may include software structures in addition to hardware structures. At least two of the aforementioned processing units and processors can be implemented as integrated components (e.g., a single chip), or each processing unit and processor can be implemented as an independent component (e.g., multiple chips).

[0100] The auxiliary processor 2112 may include a controller. The controller included in the auxiliary processor 2112 may correspond to... Figure 1 The controller 160 shown in the diagram may include interface conversion circuitry and timing control circuitry. The controller can receive image signals from the main processor 2111, convert the data format of the image signals to meet the interface specifications with the display module 2140, and output image data. The controller can output various control signals required to drive the display module 2140.

[0101] The auxiliary processor 2112 may further include a data conversion circuit 2112-2, a gamma correction circuit 2112-3, or a rendering circuit 2112-4, etc. The data conversion circuit 2112-2 can receive image data from the controller. The data conversion circuit 2112-2 can compensate the image data so that the image is displayed with a desired brightness according to the characteristics of the electronic device 2101 or user settings, or it can convert the image data to reduce power consumption or eliminate afterimages. The gamma correction circuit 2112-3 can convert the image data or gamma reference voltage so that the image displayed on the electronic device 2101 has the desired gamma characteristics. The rendering circuit 2112-4 can receive image data from the controller and can render the image data taking into account the pixel arrangement of the display panel 2141 in the electronic device 2101. The rendering circuit 2112-4 may include... Figure 1 The diagram illustrates a resolution reduction rendering block 170, a pixel arrangement rendering block 180, and a mode rendering block 190. In some embodiments, the rendering circuitry 2112-4 can perform pixel arrangement rendering operations in normal mode and can perform resolution reduction rendering operations, pixel arrangement rendering operations, and privacy rendering operations in privacy mode. In other embodiments, the rendering circuitry 2112-4 can perform resolution reduction rendering operations, pixel arrangement rendering operations, and normal rendering operations in normal mode and can perform resolution reduction rendering operations, pixel arrangement rendering operations, and privacy rendering operations in privacy mode. At least one of the data conversion circuitry 2112-2, the gamma correction circuitry 2112-3, and the rendering circuitry 2112-4 can be integrated into another component (e.g., the main processor 2111 or a controller). At least one of the data conversion circuitry 2112-2, the gamma correction circuitry 2112-3, and the rendering circuitry 2112-4 can be integrated into the data driver 2143 described below.

[0102] Memory 2120 may store various data used by at least one component of electronic device 2101 (e.g., processor 2110 or sensor module 2161). For example, the various data may include input data or output data of commands associated with the data. Memory 2120 may include at least one of volatile memory 2121 and non-volatile memory 2122.

[0103] The input module 2130 can receive commands or data from outside the electronic device 2101 (e.g., a user or external electronic device 2102) to be used by components of the electronic device 2101 (e.g., processor 2110, sensor module 2161, or sound output module 2163).

[0104] Input module 2130 may include a first input module 2131 for receiving commands or data from a user and a second input module 2132 for receiving commands or data from an external electronic device 2102. The first input module 2131 may include a microphone, mouse, keyboard, keys (e.g., buttons), or pen (e.g., a passive or active pen). The second input module 2132 may support a specified protocol that enables wired or wireless connection of electronic device 2101 to external electronic device 2102. In some embodiments, the second input module 2132 may include a High Definition Multimedia Interface (“HDMI”), a Universal Serial Bus (“USB”) interface, an SD card interface, or an audio interface. The second input module 2132 may include a connector that allows physical connection of electronic device 2101 to external electronic device 2102. For example, the second input module 2132 may include an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0105] Display module 2140 can visually provide information to the user. Display module 2140 may include display panel 2141, scan driver 2142, and data driver 2143. Display module 2140 may further include a window, base, and bracket for protecting display panel 2141.

[0106] Display panel 2141 may include a liquid crystal display panel, an organic light-emitting display panel, or an inorganic light-emitting display panel, but the type of display panel 2141 is not limited to these. Display panel 2141 may be a rigid display panel or a flexible display panel that can be rolled or folded. Display module 2140 may further include a support member, bracket, or heat dissipation member supporting display panel 2141.

[0107] The scan driver 2142 can be mounted as a driver chip on the display panel 2141. Alternatively, the scan driver 2142 can be integrated into the display panel 2141. For example, the scan driver 2142 may include an amorphous silicon TFT gate driver circuit (“ASG”), a low-temperature polycrystalline silicon (“LTPS”) TFT gate driver circuit, or an oxide semiconductor TFT gate driver circuit (“OSG”) embedded in the display panel 2141. The scan driver 2142 can receive control signals from a controller and can output scan signals to the display panel 2141 in response to the control signals.

[0108] The display panel 2141 may further include a transmit driver. The transmit driver can output a transmit control signal to the display panel 2141 in response to a control signal received from the controller. The transmit driver may be formed separately from the scan driver 2142, or it may be integrated into the scan driver 2142.

[0109] The data driver 2143 can receive control signals from the controller, can convert image data into analog voltages (e.g., data voltages) in response to the control signals, and can then output the data voltages to the display panel 2141.

[0110] The data driver 2143 can be integrated into other components (e.g., a controller). Furthermore, the interface conversion circuitry and timing control circuitry of the controller described above can be integrated into the data driver 2143.

[0111] The display module 2140 may further include a transmitter driver or a voltage generator circuit, etc. The voltage generator circuit can output various voltages to drive the display panel 2141.

[0112] Power management module 2150 can supply power to components of electronic device 2101. Power management module 2150 may include a battery that is charged to a power supply voltage. The battery may include a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell. Power management module 2150 may include a power management integrated circuit (“PMIC”). The PMIC can supply optimal power to each of the modules described above and below. Power management module 2150 may include a wireless power transmitting / receiving component electrically connected to the battery. The wireless power transmitting / receiving component may include multiple antenna radiators in the form of coils.

[0113] The electronic device 2101 may further include an internal module 2160 and an external module 2170. The internal module 2160 may include a sensor module 2161, an antenna module 2162, and a sound output module 2163. The external module 2170 may include a camera module 2171, an optical module 2172, and a communication module 2173.

[0114] The sensor module 2161 can detect input through the user's body or through the pen of the first input module 2131, and can generate an electrical signal or data value corresponding to the input. The sensor module 2161 may include at least one of a fingerprint sensor 2161-1, an input sensor 2161-2, and a digitizer 2161-3.

[0115] The fingerprint sensor 2161-1 can generate data values ​​corresponding to a user's fingerprint. The fingerprint sensor 2161-1 can include any type of optical fingerprint sensor and capacitive fingerprint sensor.

[0116] Input sensor 2161-2 can generate data values ​​corresponding to the coordinate information of a user's body input or pen input. Input sensor 2161-2 can convert capacitance changes caused by input into data values. Input sensor 2161-2 can detect input through a passive pen, or can transmit data to / receive data from an active pen.

[0117] Input sensor 2161-2 can measure biosignals such as blood pressure, water content, or body fat. For example, when a part of a user's body touches the sensor layer or sensor panel and remains stationary for a specific period of time, input sensor 2161-2 can detect biosignals based on changes in the electric field caused by that part of the body and output the information desired by the user to display module 2140.

[0118] The digitizer 2161-3 can generate data values ​​corresponding to coordinate information input via a pen. The digitizer 2161-3 can convert electromagnetic changes caused by the input into data values. The digitizer 2161-3 can detect input via a passive pen, or can transmit data to / receive data from an active pen.

[0119] At least one of the fingerprint sensor 2161-1, input sensor 2161-2, and digitizer 2161-3 can be implemented as a sensor layer formed on the display panel 2141 through a continuous process. The fingerprint sensor 2161-1, input sensor 2161-2, and digitizer 2161-3 can be disposed above the display panel 2141, or at least one of the fingerprint sensor 2161-1, input sensor 2161-2, and digitizer 2161-3 can be disposed below the display panel 2141.

[0120] Two or more of the fingerprint sensor 2161-1, input sensor 2161-2, and digitizer 2161-3 can be integrated into a single sensing panel using the same process. When integrated into a single sensing panel, the sensing panel can be positioned between the display panel 2141 and a window positioned above the display panel 2141. In some embodiments, the sensing panel can be positioned on the window, but the position of the sensing panel is not limited thereto.

[0121] At least one of the fingerprint sensor 2161-1, the input sensor 2161-2, and the digitizer 2161-3 can be embedded in the display panel 2141. In other words, at least one of the fingerprint sensor 2161-1, the input sensor 2161-2, and the digitizer 2161-3 can be formed simultaneously by the process of forming the elements (e.g., light-emitting elements, transistors, etc.) included in the display panel 2141.

[0122] Furthermore, sensor module 2161 can generate electrical signals or data values ​​corresponding to the internal or external states of electronic device 2101. For example, sensor module 2161 may further include a gesture sensor, a gyroscope sensor, an atmospheric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared (“IR”) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or a brightness sensor.

[0123] Antenna module 2162 may include one or more antennas for transmitting or receiving signals or power to or from an external source. In some embodiments, antenna module 2162 may transmit or receive signals to or from external electronic device 2102 via an antenna suitable for a communication method. The antenna pattern of antenna module 2162 may be integrated into a component of display module 2140 (e.g., display panel 2141) or input sensor 2161-2.

[0124] The sound output module 2163 can output sound signals to the outside of the electronic device 2101. For example, the sound output module 2163 may include a speaker or a receiver. The speaker can be used for general purposes, such as playing multimedia or playing records. The receiver can be used to receive incoming calls. In some embodiments, the receiver can be implemented separately from the speaker or as part of the speaker. The sound output pattern of the sound output module 2163 can be integrated into the display module 2140.

[0125] Camera module 2171 can capture still images and moving images. In some embodiments, camera module 2171 may include one or more lenses, an image sensor, or an image signal processor. Camera module 2171 may further include an infrared camera capable of measuring the presence or absence of a user, the user's position, and the user's line of sight.

[0126] The optical module 2172 can provide light. The optical module 2172 may include a light-emitting diode or a xenon lamp. The optical module 2172 can operate in conjunction with the camera module 2171, or it can operate independently of the camera module 2171.

[0127] Communication module 2173 can support the establishment of a wired or wireless communication channel between electronic device 2101 and external electronic device 2102, and enable communication through the established communication channel. Communication module 2173 may include a wireless communication module (e.g., a cellular communication module, a short-range wireless communication module, or a Global Navigation Satellite System (“GNSS”) communication module) or a wired communication module (e.g., a local area network (“LAN”) communication module or a power line communication (“PLC”) module). Communication module 2173 can communicate via a short-range communication network (e.g., Bluetooth). ® The communication module 2173 communicates with external electronic devices via a wireless fidelity (“Wi-Fi”) direct connection or an infrared data association (“IrDA”) or a remote communication network (e.g., a cellular network, the Internet, or a computer network (e.g., a LAN or a wide area network (“WAN”)). These various types of communication modules 2173 can be implemented as a single chip or as multiple chips that are separate from each other.

[0128] The input module 2130, sensor module 2161, and camera module 2171 can be used in conjunction with the processor 2110 to control the operation of the display module 2140.

[0129] The processor 2110 can output commands or data to the display module 2140, the sound output module 2163, the camera module 2171, or the optical module 2172 based on the input data received from the input module 2130. For example, the processor 2110 can generate image data corresponding to the input data applied by a mouse or active pen, and can output the image data to the display module 2140. Alternatively, the processor 2110 can generate command data corresponding to the input data, and can output the command data to the camera module 2171 or the optical module 2172. When no input data is received from the input module 2130 for a specific period of time, the processor 2110 can switch the operating mode of the electronic device 2101 to a low-power mode or a sleep mode, thereby reducing the power consumption of the electronic device 2101.

[0130] The processor 2110 can output commands or data to the display module 2140, the sound output module 2163, the camera module 2171, or the light module 2172 based on the sensing data received from the sensor module 2161. For example, the processor 2110 can compare the authentication data applied by the fingerprint sensor 2161-1 with the authentication data stored in the memory 2120, and then execute an application based on the comparison result. The processor 2110 can execute commands or output corresponding image data to the display module 2140 based on the sensing data sensed by the input sensor 2161-2 or the digitizer 2161-3. If the sensor module 2161 includes a temperature sensor, the processor 2110 can receive temperature data from the sensor module 2161 and can further perform brightness correction on the image data based on the temperature data.

[0131] Processor 2110 can receive measurement data from camera module 2171 regarding the presence or absence of a user, the user's position, and the user's gaze. Processor 2110 can further perform brightness correction on the image data based on the measurement data. For example, after processor 2110 determines the presence or absence of a user based on input from camera module 2171, data conversion circuit 2112-2 or gamma correction circuit 2112-3 can perform brightness correction on the image data, and processor 2110 can provide the brightness-corrected image data to display module 2140.

[0132] At least some of the aforementioned components may be coupled to each other and transmit signals (e.g., commands or data) therebetween via inter-peripheral communication schemes (e.g., bus, general purpose input and output (“GPIO”), serial peripheral interface (“SPI”), mobile industrial processor interface (“MIPI”), or ultrapath interconnect (“UPI”)). Processor 2110 may communicate with display module 2140 via an agreed interface. Furthermore, any of the aforementioned communication methods may be used between processor 2110 and display module 2140, but the communication methods between processor 2110 and display module 2140 are not limited to the aforementioned communication methods.

[0133] The electronic device 2101 according to the various embodiments described above can be of various types. For example, the electronic device 2101 may include at least one of portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, and home appliances. However, the electronic device 2101 according to the embodiments is not limited to the devices described above.

[0134] The foregoing description is illustrative of embodiments and should not be construed as limiting the embodiments. Although several embodiments have been described, those skilled in the art will readily understand that many modifications are possible in the embodiments without substantially departing from the novel teachings and advantages of the inventive concept. Therefore, all such modifications are intended to be included within the scope of the inventive concept as defined in the claims. It will therefore be understood that the foregoing description is illustrative of various embodiments and should not be construed as limiting to the specific embodiments disclosed, and modifications to the disclosed embodiments, as well as other embodiments, are intended to be included within the scope of the claims.

Claims

1. A display device, comprising: The display panel includes a plurality of ordinary sub-pixels having a first viewing angle and a plurality of privacy sub-pixels having a second viewing angle different from the first viewing angle, wherein the plurality of ordinary sub-pixels and the plurality of privacy sub-pixels are arranged in a first pixel arrangement structure. and A panel driver receives input image data corresponding to a second pixel arrangement structure different from the first pixel arrangement structure, and drives the display panel. In normal mode, the panel driver performs pixel arrangement rendering operations on the input image data corresponding to the second pixel arrangement structure to generate first output image data corresponding to the first pixel arrangement structure, and drives the plurality of normal sub-pixels and the plurality of privacy sub-pixels based on the first output image data. In privacy mode, the panel driver performs a resolution reduction rendering operation, which adjusts each sub-pixel data in the input image data based on neighboring sub-pixel data included in the input image data. The pixel arrangement rendering operation is then performed on the input image data for which the resolution reduction rendering operation has been performed, and a privacy rendering operation is performed on the input image data for which both the resolution reduction rendering operation and the pixel arrangement rendering operation have been performed to generate second output image data. Based on the second output image data, only the plurality of ordinary sub-pixels and the plurality of privacy sub-pixels are driven.

2. The display device according to claim 1, wherein, The input image data includes multiple red sub-pixel data, multiple green sub-pixel data, and multiple blue sub-pixel data, and In the resolution reduction rendering operation, the panel driver adjusts each red sub-pixel data based on two horizontally adjacent red sub-pixel data from the plurality of red sub-pixel data in the second pixel arrangement structure, adjusts each green sub-pixel data based on two horizontally adjacent green sub-pixel data from the plurality of green sub-pixel data in the second pixel arrangement structure, and adjusts each blue sub-pixel data based on two horizontally adjacent blue sub-pixel data from the plurality of blue sub-pixel data in the second pixel arrangement structure.

3. The display device according to claim 1, wherein, The input image data includes multiple red sub-pixel data, multiple green sub-pixel data, and multiple blue sub-pixel data, and In the resolution reduction rendering operation, the panel driver adjusts each red sub-pixel data based on two red sub-pixel data that are vertically adjacent to each red sub-pixel data in the plurality of red sub-pixel data in the second pixel arrangement structure, adjusts each green sub-pixel data based on two green sub-pixel data that are vertically adjacent to each green sub-pixel data in the plurality of green sub-pixel data in the second pixel arrangement structure, and adjusts each blue sub-pixel data based on two blue sub-pixel data that are vertically adjacent to each blue sub-pixel data in the plurality of blue sub-pixel data in the second pixel arrangement structure.

4. The display device according to claim 1, wherein, The input image data includes multiple red sub-pixel data, multiple green sub-pixel data, and multiple blue sub-pixel data, and In the resolution reduction rendering operation, the panel driver adjusts each red sub-pixel data based on two horizontally adjacent red sub-pixel data and two vertically adjacent red sub-pixel data among the plurality of red sub-pixel data in the second pixel arrangement structure; adjusts each green sub-pixel data based on two horizontally adjacent green sub-pixel data and two vertically adjacent green sub-pixel data among the plurality of green sub-pixel data in the second pixel arrangement structure; and adjusts each blue sub-pixel data based on two horizontally adjacent blue sub-pixel data and two vertically adjacent blue sub-pixel data among the plurality of blue sub-pixel data in the second pixel arrangement structure.

5. The display device according to claim 1, wherein, The input image data includes multiple red sub-pixel data, multiple green sub-pixel data, and multiple blue sub-pixel data, and In the resolution reduction rendering operation, the panel driver adjusts each red sub-pixel data based on four red sub-pixel data adjacent to each red sub-pixel data diagonally from the plurality of red sub-pixel data in the second pixel arrangement structure, adjusts each green sub-pixel data based on four green sub-pixel data adjacent to each green sub-pixel data diagonally from the plurality of green sub-pixel data in the second pixel arrangement structure, and adjusts each blue sub-pixel data based on four blue sub-pixel data adjacent to each blue sub-pixel data diagonally from the plurality of blue sub-pixel data in the second pixel arrangement structure.

6. The display device according to claim 1, wherein, The input image data includes multiple red sub-pixel data, multiple green sub-pixel data, and multiple blue sub-pixel data, and In the resolution reduction rendering operation, the panel driver adjusts each red sub-pixel data based on two horizontally adjacent red sub-pixel data, two vertically adjacent red sub-pixel data, and four diagonally adjacent red sub-pixel data in the second pixel arrangement structure. Similarly, it adjusts each green sub-pixel data based on two horizontally adjacent green sub-pixel data, two vertically adjacent green sub-pixel data, and four diagonally adjacent green sub-pixel data in the second pixel arrangement structure. Finally, it adjusts each blue sub-pixel data based on two horizontally adjacent blue sub-pixel data, two vertically adjacent blue sub-pixel data, and four diagonally adjacent blue sub-pixel data in the second pixel arrangement structure.

7. The display device according to claim 1, wherein, In the first pixel arrangement structure, each sub-pixel includes two first-color sub-pixels, one second-color sub-pixel, and one third-color sub-pixel respectively arranged at the four corners of the rhombus shape, and the two first-color sub-pixels are arranged at opposite corners among the four corners. In the second pixel arrangement structure, each sub-pixel includes one first-color sub-pixel, one second-color sub-pixel, and one third-color sub-pixel arranged sequentially in one direction.

8. The display device according to claim 1, wherein, The plurality of ordinary sub-pixels includes ordinary red sub-pixels, ordinary green sub-pixels, and ordinary blue sub-pixels. The plurality of privacy sub-pixels includes privacy red sub-pixels, privacy green sub-pixels, and privacy blue sub-pixels. Specifically, one ordinary red sub-pixel from the ordinary red sub-pixels, two ordinary green sub-pixels from the ordinary green sub-pixels, and one ordinary blue sub-pixel from the ordinary blue sub-pixels are respectively arranged at the four corners of the rhombus shape, and Specifically, one privacy red sub-pixel from the privacy red sub-pixel, two privacy green sub-pixels from the privacy green sub-pixel, and one privacy blue sub-pixel from the privacy blue sub-pixel are respectively arranged at the four corners of the rhombus shape.

9. The display device according to claim 8, wherein, The input image data includes multiple red sub-pixel data, multiple green sub-pixel data, and multiple blue sub-pixel data, and In the pixel arrangement rendering operation, the panel driver generates each subpixel data for each of the ordinary red subpixels or each of the privacy red subpixels based on two adjacent red subpixel data among the plurality of red subpixel data, generates each subpixel data for each of the ordinary green subpixels or each of the privacy green subpixels based on two adjacent green subpixel data among the plurality of green subpixel data, and generates each subpixel data for each of the ordinary blue subpixels or each of the privacy blue subpixels based on two adjacent blue subpixel data among the plurality of blue subpixel data.

10. The display device according to claim 1, wherein, In the privacy rendering operation, the panel driver converts the subpixel data of the plurality of ordinary subpixels into the lowest-level data among the subpixel data included in the input image data that has performed the resolution reduction rendering operation and the pixel arrangement rendering operation.

11. The display device according to any one of claims 1 to 10, wherein, The panel driver includes: A scan driver provides scan signals to the plurality of ordinary sub-pixels and the plurality of privacy sub-pixels; A data driver provides data signals to the plurality of normal sub-pixels and the plurality of privacy sub-pixels based on the first output image data in the normal mode, and provides data signals to the plurality of privacy sub-pixels based on the second output image data in the privacy mode; and The controller generates the first output image data by performing the pixel arrangement rendering operation on the input image data in the normal mode, and generates the second output image data by performing the resolution reduction rendering operation, the pixel arrangement rendering operation, and the privacy rendering operation on the input image data in the privacy mode.

12. The display device according to claim 11, wherein, The controller includes: A resolution reduction rendering block performs the resolution reduction rendering operation on the input image data in the privacy mode; A pixel arrangement rendering block performs the pixel arrangement rendering operation on the input image data in the normal mode, and performs the pixel arrangement rendering operation on the input image data that has undergone the resolution reduction rendering operation in the privacy mode; and A mode rendering block performs the privacy rendering operation on the input image data that has undergone the resolution reduction rendering operation and the pixel arrangement rendering operation in the privacy mode.

13. A display device, comprising: The display panel includes a plurality of ordinary sub-pixels having a first viewing angle and a plurality of privacy sub-pixels having a second viewing angle different from the first viewing angle, wherein the plurality of ordinary sub-pixels and the plurality of privacy sub-pixels are arranged in a first pixel arrangement structure. and A panel driver receives input image data corresponding to a second pixel arrangement structure different from the first pixel arrangement structure, and drives the display panel. In normal mode, the panel driver performs a resolution reduction rendering operation. This operation adjusts each sub-pixel in the input image data based on neighboring sub-pixel data. A pixel arrangement rendering operation is then performed on the input image data for which the resolution reduction rendering operation has been performed. Finally, a normal rendering operation is performed on the input image data for which both the resolution reduction rendering operation and the pixel arrangement rendering operation have been performed to generate first output image data. Based on this first output image data, only the plurality of ordinary sub-pixels and the plurality of privacy sub-pixels are driven. In privacy mode, the panel driver performs the resolution reduction rendering operation on the input image data, performs the pixel arrangement rendering operation on the input image data after the resolution reduction rendering operation has been performed, and performs a privacy rendering operation on the input image data after the resolution reduction rendering operation and the pixel arrangement rendering operation have been performed, to generate second output image data, and drives only the plurality of privacy sub-pixels among the plurality of ordinary sub-pixels and the plurality of privacy sub-pixels based on the second output image data.

14. The display device according to claim 13, wherein, The input image data includes multiple red sub-pixel data, multiple green sub-pixel data, and multiple blue sub-pixel data, and In the resolution reduction rendering operation, the panel driver adjusts each red sub-pixel data based on two horizontally adjacent red sub-pixel data from the plurality of red sub-pixel data in the second pixel arrangement structure, adjusts each green sub-pixel data based on two horizontally adjacent green sub-pixel data from the plurality of green sub-pixel data in the second pixel arrangement structure, and adjusts each blue sub-pixel data based on two horizontally adjacent blue sub-pixel data from the plurality of blue sub-pixel data in the second pixel arrangement structure.

15. The display device according to claim 13, wherein, The input image data includes multiple red sub-pixel data, multiple green sub-pixel data, and multiple blue sub-pixel data, and In the resolution reduction rendering operation, the panel driver adjusts each red sub-pixel data based on two red sub-pixel data that are vertically adjacent to each red sub-pixel data in the plurality of red sub-pixel data in the second pixel arrangement structure, adjusts each green sub-pixel data based on two green sub-pixel data that are vertically adjacent to each green sub-pixel data in the plurality of green sub-pixel data in the second pixel arrangement structure, and adjusts each blue sub-pixel data based on two blue sub-pixel data that are vertically adjacent to each blue sub-pixel data in the plurality of blue sub-pixel data in the second pixel arrangement structure.

16. The display device according to claim 13, wherein, The input image data includes multiple red sub-pixel data, multiple green sub-pixel data, and multiple blue sub-pixel data, and In the resolution reduction rendering operation, the panel driver adjusts each red sub-pixel data based on two horizontally adjacent red sub-pixel data and two vertically adjacent red sub-pixel data among the plurality of red sub-pixel data in the second pixel arrangement structure; adjusts each green sub-pixel data based on two horizontally adjacent green sub-pixel data and two vertically adjacent green sub-pixel data among the plurality of green sub-pixel data in the second pixel arrangement structure; and adjusts each blue sub-pixel data based on two horizontally adjacent blue sub-pixel data and two vertically adjacent blue sub-pixel data among the plurality of blue sub-pixel data in the second pixel arrangement structure.

17. The display device according to claim 13, wherein, The input image data includes multiple red sub-pixel data, multiple green sub-pixel data, and multiple blue sub-pixel data, and In the resolution reduction rendering operation, the panel driver adjusts each red sub-pixel data based on four red sub-pixel data adjacent to each red sub-pixel data diagonally from the plurality of red sub-pixel data in the second pixel arrangement structure, adjusts each green sub-pixel data based on four green sub-pixel data adjacent to each green sub-pixel data diagonally from the plurality of green sub-pixel data in the second pixel arrangement structure, and adjusts each blue sub-pixel data based on four blue sub-pixel data adjacent to each blue sub-pixel data diagonally from the plurality of blue sub-pixel data in the second pixel arrangement structure.

18. The display device according to claim 13, wherein, The input image data includes multiple red sub-pixel data, multiple green sub-pixel data, and multiple blue sub-pixel data, and In the resolution reduction rendering operation, the panel driver adjusts each red sub-pixel data based on two horizontally adjacent red sub-pixel data, two vertically adjacent red sub-pixel data, and four diagonally adjacent red sub-pixel data in the second pixel arrangement structure. Similarly, it adjusts each green sub-pixel data based on two horizontally adjacent green sub-pixel data, two vertically adjacent green sub-pixel data, and four diagonally adjacent green sub-pixel data in the second pixel arrangement structure. Finally, it adjusts each blue sub-pixel data based on two horizontally adjacent blue sub-pixel data, two vertically adjacent blue sub-pixel data, and four diagonally adjacent blue sub-pixel data in the second pixel arrangement structure.

19. The display device according to any one of claims 13 to 18, wherein, In the normal rendering operation, the panel driver converts the subpixel data of the plurality of privacy subpixels into the lowest-level data among the subpixel data included in the input image data that has undergone the resolution reduction rendering operation and the pixel arrangement rendering operation, and In the privacy rendering operation, the panel driver converts the subpixel data of the plurality of ordinary subpixels into the minimum-level data among the subpixel data included in the input image data that has performed the resolution reduction rendering operation and the pixel arrangement rendering operation.

20. An electronic device comprising: The processor provides input image data and pattern signals; The display panel includes a plurality of ordinary sub-pixels having a first viewing angle and a plurality of privacy sub-pixels having a second viewing angle different from the first viewing angle, wherein the plurality of ordinary sub-pixels and the plurality of privacy sub-pixels are arranged in a first pixel arrangement structure. and The panel driver receives input image data from the processor corresponding to a second pixel arrangement structure different from the first pixel arrangement structure, receives a mode signal from the processor indicating a normal mode or a privacy mode, and drives the display panel. When the mode signal indicates the privacy mode, the panel driver performs a resolution reduction rendering operation. The resolution reduction rendering operation adjusts each sub-pixel data included in the input image data based on neighboring sub-pixel data included in the input image data. A pixel arrangement rendering operation is performed on the input image data for which the resolution reduction rendering operation has been performed. A privacy rendering operation is performed on the input image data for which the resolution reduction rendering operation and the pixel arrangement rendering operation have been performed to generate output image data. Based on the output image data, only the plurality of privacy sub-pixels among the plurality of normal sub-pixels and the plurality of privacy sub-pixels are driven.

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