TWI691951B - Display and display method thereof - Google Patents

Abstract

A display and a display method thereof are provided. A driving circuit drives a foldable display panel to display in an ultra high definition display mode when the foldable display panel is in the folded state and drives the foldable display panel to display in a normal display mode and when the foldable display panel is in an expanded state. In the normal display mode, a ratio of resolution of physical pixels performing display on the foldable display panel to resolution of corresponding first original pixel data is a first ratio. In the ultra high definition display mode, a ratio of resolution of physical pixels performing display on the foldable display panel to resolution of corresponding second original pixel data is a second ratio. The first ratio is greater than the second ratio.

Description

Display device and display method

The invention relates to a display device and a display method thereof, and in particular to a folding display device and a display method thereof with high visual resolution.

In recent years, displays have become important devices in electronic products. Despite the trend of miniaturization of electronic products, many consumers still need large-screen displays. Therefore, flexible displays with foldable screens have been developed to meet the needs of users.

An electronic device with a foldable screen can still display an image screen in an exposed display area when it is folded, so as to provide display images such as time, power, or SMS content, and improve the convenience of use of the electronic device. After the screen of the electronic device is folded, the number of physical pixels available for display will be reduced, which will lead to a decrease in resolution and thus display quality.

The display device of the present invention includes a foldable display panel, a sensor, and a driving circuit. The sensor senses the folded state of the foldable display panel. The driving circuit is coupled to the sensor and the foldable display panel, and drives the foldable display panel to display in the normal display mode according to the first original pixel data when the foldable display panel is in the expanded state, and the foldable display panel When in the folded state, the foldable display panel is driven to display in the ultra-high-definition display mode according to the second original pixel data, wherein the resolution of the physical pixels displayed on the foldable display panel in the normal display mode and its corresponding first pixel The ratio of the resolution of the original pixel data is the first ratio, the ratio of the resolution of the physical pixels displayed on the foldable display panel in the ultra-high definition display mode and the resolution of the corresponding second original pixel data For the second ratio, the first ratio is greater than the second ratio.

In an embodiment of the present invention, in the ultra-high-definition display mode, the driving circuit performs sub-pixel rendering processing on the second original pixel data to generate sub-pixel driving data, and drives the corresponding according to the sub-pixel driving data Of sub-pixels.

In an embodiment of the present invention, in the ultra-high-definition display mode, the number of physical pixels displayed on the foldable display panel is smaller than the number of physical pixels displayed in the normal display mode.

In an embodiment of the present invention, in the normal display mode, the driving circuit uses the first original pixel data as the pixel driving data to drive the corresponding physical pixels.

In an embodiment of the present invention, the above-mentioned driving circuit includes a gate driver configured on the side of the foldable display panel that intersects the fold line of the foldable display panel or the side parallel to the fold line .

The present invention also provides a display method of a display device. The display device includes a foldable display panel. The display method of the display device includes the following steps. Determine whether the foldable display panel is in a folded state. When the foldable display panel is in the expanded state, the foldable display panel is driven to display in the normal display mode according to the first original pixel data. When the foldable display panel is in the folded state, the foldable display panel is driven to display in the ultra-high-definition display mode according to the second original pixel data, wherein the physical pixels displayed on the foldable display panel in the normal display mode The ratio of the resolution of the original pixel data to the resolution of the corresponding first original pixel data is the first ratio, the resolution of the physical pixels displayed on the foldable display panel in the ultra-high-definition display mode and the corresponding second original picture The ratio of the resolution of the prime data is the second ratio, and the first ratio is greater than the second ratio.

In an embodiment of the invention, the above-mentioned display method of the display device includes, in the ultra-high-definition display mode, performing sub-pixel rendering processing on the second original pixel data to generate a sub-pixel driving data, and according to the sub-pixel driving data The pixel-driven data drives the corresponding physical sub-pixels.

In an embodiment of the present invention, in the ultra-high-definition display mode, the number of physical pixels displayed on the foldable display panel is smaller than the number of physical pixels displayed in the normal display mode.

In an embodiment of the invention, the above-mentioned display method of the display device includes, in the normal display mode, using the first original pixel data as the pixel driving data to drive the corresponding physical pixels.

The display device of the present invention includes a foldable display panel, a sensor, and a driving circuit. The foldable display panel includes multiple physical pixels. The sensor senses the folded state of the foldable display panel. The driving circuit is coupled to the sensor and the foldable display panel, and drives the foldable display panel to display in the normal display mode according to the first original pixel data when the foldable display panel is in the expanded state, and the foldable display panel When in the folded state, the foldable display panel is driven to display in the ultra-high-definition display mode according to the second original pixel data, wherein the amount of image data displayed by the same physical pixel in the foldable display panel in the ultra-high-definition display mode is greater than The amount of image data displayed equivalently in normal display mode.

In an embodiment of the present invention, in the ultra-high-definition display mode, the driving circuit performs sub-pixel rendering processing on the second original pixel data to generate sub-pixel driving data, and drives the corresponding pixel driving data according to the sub-pixel driving data Entity sub-pixel.

In an embodiment of the present invention, in the ultra-high-definition display mode, the number of physical pixels displayed on the foldable display panel is smaller than the number of physical pixels displayed in the normal display mode.

In an embodiment of the present invention, in the normal display mode, the driving circuit uses the first original pixel data as the pixel driving data to drive the corresponding physical pixels.

In an embodiment of the present invention, in the normal display mode, wherein the driving circuit includes a gate driver, the gate driver is disposed on a side of the foldable display panel that intersects the folding line of the foldable display panel or Fold the parallel sides.

In an embodiment of the invention, the amount of image data on which the foldable display panel displays the same image in the ultra-high definition display mode and the normal display mode is different.

The present invention also provides a display method of a display device. The display device includes a foldable display panel. The display method of the display device includes the following steps. Determine whether the foldable display panel is in a folded state. When the foldable display panel is in the expanded state, the foldable display panel is driven to display in the normal display mode. When the foldable display panel is in the folded state, the foldable display panel is driven to display in the ultra-high-definition display mode, wherein the amount of image data equivalently displayed by the same physical pixel in the foldable display panel in the ultra-high-definition display mode is greater than The amount of image data equivalently displayed in the normal display mode is different from the amount of image data on which the foldable display panel displays the same image in the ultra-high-definition display mode and the normal display mode.

In an embodiment of the present invention, the above display method of the display device includes, in the ultra-high-definition display mode, performing sub-pixel rendering processing on the original pixel data to generate sub-pixel driving data, and driving according to the sub-pixel driving The data drives the corresponding physical sub-pixels.

In an embodiment of the present invention, in the ultra-high-definition display mode, the number of physical pixels displayed on the foldable display panel is smaller than the number of physical pixels displayed in the normal display mode.

In an embodiment of the invention, the above-mentioned display method of the display device includes, in the normal display mode, using the original pixel data as the pixel driving data to drive the corresponding physical pixels.

Based on the above, the driving circuit of the embodiment of the present invention can drive the foldable display panel to display in the ultra-high definition display mode and the normal display mode when the foldable display panel is in the folded state and the unfolded state, respectively. The ratio of the resolution of the physical pixels displayed on the foldable display panel in the normal display mode and the resolution of the corresponding first original pixel data is the first ratio, and the foldable display in the ultra high definition display mode The ratio of the resolution of the physical pixels displayed on the panel and the resolution of the corresponding second original pixel data is a second ratio, and the first ratio is greater than the second ratio. In some embodiments, the amount of image data equivalently displayed in the ultra-high-definition display mode of the same physical pixel in the foldable display panel may be greater than the amount of image data equivalently displayed in the normal display mode. In this way, the visual resolution of the foldable display panel in the folded state can be improved, and the display quality of the display device can be prevented from deteriorating due to the reduction in the number of physical pixels available for display.

In order to make the above-mentioned features and advantages of the present invention more obvious and understandable, the embodiments are specifically described below in conjunction with the accompanying drawings for detailed description as follows.

FIG. 1 is a schematic diagram of a display device according to an embodiment of the present invention. Referring to FIG. 1, the display device 100 includes a foldable display panel 102, a sensor 104, and a driving circuit 106. The driving circuit 106 is coupled to the foldable display panel 102 and the sensor 104. As shown in FIG. 2, the foldable display panel 102 can be displayed in an expanded state or a folded state. The foldable display panel 102 includes a plurality of physical pixels, wherein in the folded state, the foldable display panel 102 can only be Some solid pixels are used to display images. For example, in FIG. 2, the foldable display panel 102 folded in half has only the solid pixels on the display surface FA for displaying images, and the solid pixels on the display surface FB are not used for displaying images, that is, in In the ultra-high-definition display mode, the number of physical pixels displayed on the foldable display panel 102 is smaller than the number of physical pixels displayed in the normal display mode. In some embodiments, the foldable display panel 102 that is folded in half can also display the physical pixels on the display surfaces FA and FB in an ultra-high-definition display mode, and is not limited to displaying only some of the physical pixels image. The foldable display panel 102 may be implemented by, for example, a liquid crystal display panel or an organic light-emitting display panel, but it is not limited thereto. The sensor 104 is used to sense the folded state of the foldable display panel 102, which may be, for example, at least one of a force sensor, a capacitance sensor, a light sensor, a resistance sensor, and a piezoresistive sensor. Once implemented, it is not limited to this.

In addition, the driving circuit 106 may be implemented by a chip, for example, which may include a processor, a gate driver, and a source driver, but it is not limited thereto. The driving circuit 106 can adjust the display mode of the foldable display panel 102 according to the sensing result of the sensor 104. For example, when the foldable display panel 102 is in the unfolded state, the driving circuit 106 can drive the foldable display panel 102 to display in the normal display mode according to the first original pixel data it receives, and when the foldable type When the display panel 102 is in the folded state, the driving circuit 106 can drive the foldable display panel 102 to display in the ultra-high-definition display mode according to the second original pixel data received, that is, the foldable display panel 102 is in a normal state The display mode is different from the amount of image data on which the same image is displayed in the UHD display mode. In the normal display mode, the resolution of the physical pixels displayed on the foldable display panel 102 and the resolution of the corresponding first original pixel data (that is, the default The ratio of the number of driven physical pixels) is the first ratio. In the ultra-high-definition display mode, the resolution (that is, the number of physical pixels) of the physical pixels displayed on the foldable display panel 102 and its corresponding The ratio of the resolution of the second original pixel data (that is, the number of driveable physical pixels preset in the second original pixel data) is the second ratio, and the first ratio is greater than the second ratio. For example, the first ratio can be equal to 1 and the second ratio can be less than 1.

In this way, when the foldable display panel 102 is in the folded state, the foldable display panel 102 is displayed according to the second original pixel data having a resolution exceeding the number of physical pixels performing display, which can improve the foldable type The visual resolution of the display panel 102 in the folded state prevents the display quality of the display device from deteriorating due to the reduction in the number of physical pixels available for display. That is to say, the foldable display panel 102 of this embodiment can improve the visual resolution when the number of physical pixels available for display decreases, in order to meet the high visual resolution of general users for small-sized display screens The display quality of the display device 100 in the folded state can also meet the user's experience and habit of viewing a small screen with high visual resolution in the past, thereby improving user acceptance of the display device 100.

In some embodiments, when the foldable display panel 102 is in the folded state (Ultra HD display mode), the amount of image data equivalently displayed by the same physical pixel in the foldable display panel 102 may be greater than in the expanded state ( In the normal display mode), the amount of image data equivalently displayed, for example, sub-pixel rendering (Sub-Pixel Rendering, SPR) technology can be used to improve the visual resolution, so that the physical pixels equivalently display more image data. The driving circuit 106 may perform sub-pixel rendering processing on the second original pixel data in the ultra-high-definition display mode to generate sub-pixel driving data, and drive the corresponding physical sub-pixels according to the sub-pixel driving data. In the normal display mode (that is, when the foldable display panel 102 is in the expanded state), the first original pixel data is directly used as the pixel driving data to drive the corresponding physical pixels.

For example, FIG. 3 is a schematic diagram of physical pixel arrangement of a foldable display panel according to an embodiment of the invention. The foldable display panel 102 includes solid pixels P11~PV2H, wherein the display surfaces FA and FB respectively include H×V solid pixels, wherein each solid pixel includes a red sub-pixel R, a green sub-pixel G and Blue sub-pixel B. The first original pixel data may include, for example, 2H×V pixel data, which are used to drive physical pixels P11~PV2H, and each pixel data may include red sub-pixels R and green sub-pixels G, respectively. And the red, green and blue sub-pixel data of blue sub-pixel B. When the foldable display panel 102 is in the unfolded state, the driving circuit 106 can use the 2H×V pixel data included in the first original pixel data as pixel driving data to drive the physical pixels P11~PV2H. As described in the above embodiment, in the normal display mode, the resolution of the first original pixel data is 2H×V, so the resolution of the physical pixels displayed on the foldable display panel 102 and its corresponding first original The ratio of the resolution of the pixel data is equal to 1, that is, the first ratio is equal to 1.

Taking the embodiments of FIG. 4A and FIG. 4B as an example, when the foldable display panel 102 is in a folded state, the foldable display panel 102 is displayed only with H×V solid pixels on the display surface FA. In the embodiments of FIGS. 4A and 4B, the second original pixel data may include, for example, 1.5H×V pixel data D11~DVM, where M is equal to 1.5H. The driving circuit 106 may first perform sub-pixel rendering processing on the second original pixel data to obtain sub-pixel driving data, and then drive the corresponding physical sub-pixels according to the sub-pixel driving data.

Taking pixel data processing corresponding to the solid pixels P11 and P12 in the horizontal direction as an example, the solid pixels P11 and P12 are displayed using the pixel data D11 to D13. In detail, the sub-pixel driving data of the blue sub-pixel and the red sub-pixel in the physical pixel P11 may be respectively equal to the blue sub-pixel data D11B and the red sub-pixel data D11R in the pixel data D11, The sub-pixel driving data of the green sub-pixel in the solid pixel P11 may be equal to W11×D11G+W12×D12G, where D11G and D12G are respectively the green sub-pixel data in the pixel data D11 and the pixel data in the pixel data D12 The green sub-pixel data, W11 and W12 are the weights of the green sub-pixel data D11G and the green sub-pixel data D12G in the sub-pixel drive data of the green sub-pixel. Similarly, the sub-pixel driving data of the blue sub-pixel and the red sub-pixel in the physical pixel P12 may be respectively equal to W12×D12B+W13×D13B and W12′×D12R+W13′×D13R, where D12B and D13B It is the blue sub-pixel data in pixel data D12 and pixel data D13, D12R and D13R are the red sub-pixel data in pixel data D12 and pixel data D13, W12 and W13 are blue sub-pixel data respectively The weight of pixel data D12B and blue sub-pixel data D13B in the sub-pixel drive data of blue sub-pixels, W12' and W13' are the red sub-pixel data D12R and red sub-pixel data respectively The weight of D13R in the sub-pixel drive data of red sub-pixels. In addition, the sub-pixel driving data of the green sub-pixel in the physical pixel P12 may be equal to the green sub-pixel data D13G in the pixel data D13, for example. In addition, the sub-pixel driving data of the remaining physical pixels P14~P1H can also be obtained in a similar manner, and will not be described here. By using the sub-pixel driving data obtained by performing sub-pixel rendering processing on the second original pixel data to drive the physical pixels P11~P1H, the physical pixels P11~P1H can visually display 1.5H pictures The effect of pixel data (pixel data D11~D1M) improves the visual resolution by 1.5 times. As described in the above embodiment, in the ultra-high-definition display mode, the resolution of the first original pixel data is 1.5H×V, so the resolution of the physical pixels displayed on the foldable display panel 102 and its corresponding first pixel The ratio of the resolution of the two original pixel data is equal to 2/3, that is, the second ratio is equal to 2/3, and the first ratio (1) is greater than the second ratio (2/3).

By analogy, the pixel data of other rows in the horizontal direction can also be subpixel rendered in a similar manner to obtain corresponding subpixel driving data. In addition, the pixel data in the vertical direction can also perform sub-pixel rendering processing in a similar manner to obtain corresponding sub-pixel driving data. As described in the above embodiment, in the normal display mode, the ratio of the resolution of the physical pixels displayed on the foldable display panel 102 to the resolution of the corresponding first original pixel data is only equal to 1, while in Ultra HD In the display mode, although the number of physical pixels used for display is reduced, after the visual resolution is improved by the sub-pixel rendering technology, the resolution of the physical pixels displayed on the foldable display panel 102 and its corresponding first The ratio of the resolution of the two original pixel data is equal to 2/3. That is to say, the visual resolution of the display screen is increased by 1.5 times while reducing the number of physical pixels used for display, and the resolution perceived by the viewer is improved. By analogy, by increasing the visual resolution in both the horizontal and vertical directions, the visual resolution of the overall display image can be increased by 2.25 times.

In addition, in some embodiments, the weights of the red, green, and blue sub-pixel driving data in the pixel driving data may also be adjusted according to the different arrangement of the physical pixels on the foldable display panel 102. To obtain the adjusted pixel driving data to drive the physical pixels. For example, the arrangement of the physical pixels shown in FIG. 5 is different from the arrangement of the physical pixels shown in FIG. 3. When the embodiment of the above embodiment is applied to the embodiment of FIG. 5, it may be necessary to adjust the The weight of the red, green and blue sub-pixel driving data can achieve the best display effect. In addition, the above embodiment is described by taking the foldable display panel 102 as an example. However, the folding method of the foldable display panel 102 is not limited to this. In other embodiments, the foldable display panel 102 may also be, for example, Implement in a more discounted way.

In addition, as shown in FIGS. 6A and 6B, the gate driver 602 in the driving circuit 106 can be configured, for example, on the side of the foldable display panel 102 that intersects the fold line of the foldable display panel (as shown in FIG. 6A) or The side parallel to the fold line (see Figure 6B). In the embodiment of FIG. 6A, all the gate drivers 602 need to be actuated in the unfolded state, and only a part of the gate drivers 602 can be actuated in the folded state, for example, a foldable display panel after being folded in half 102 has two opposite display surfaces, and only the gate driver 602 corresponding to the display surface responsible for display operates, while the gate driver 602 corresponding to the display surface responsible for display does not operate. In other words, the driving signal or actuation condition of the gate driver 602 in the unfolded state and the folded state is different. In addition, the number of gate lines driven in the folded state can be reduced. In the embodiment of FIG. 6A, two sets of gate drivers 602 are described, but the present invention is not limited to this, and there may be different numbers of gate drivers 602 according to the folding design or other requirements. In the embodiment of FIG. 6B, since the gate driver 602 is disposed on the side parallel to the folding line, the driving signal or actuation of the gate driver 602 in the unfolded state and the folded state is the same.

7 is a flowchart of a display method of a display device according to an embodiment of the invention. It can be known from the above embodiments that the display method of the display device may include at least the following steps. First, determine whether the foldable display panel is in the folded state (step S702), if the foldable display panel is not in the folded state but in the expanded state, drive the foldable display panel to display in the normal display mode (step S704), For example, the first original pixel data can be used as the pixel driving data to drive the corresponding physical pixels in the foldable display panel. Conversely, if the foldable display panel is in the folded state, the foldable display panel is driven to display in the ultra-high-definition display mode (step S706), for example, the foldable display panel can be driven according to the second original pixel data. In the ultra-high-definition display mode, the number of physical pixels displayed on the foldable display panel may be smaller than the number of physical pixels displayed in the normal display mode, and in addition, the display is performed on the foldable display panel in the normal display mode The ratio of the resolution of the physical pixels and the resolution of the corresponding first original pixel data is the first ratio, and the resolution of the physical pixels displayed on the foldable display panel in the ultra-high-definition display mode and the corresponding The ratio of the resolution of the second original pixel data is the second ratio, and the first ratio is greater than the second ratio.

In some embodiments, the amount of image data equivalently displayed in the ultra-high-definition display mode of the same physical pixel in the foldable display panel may be greater than the amount of image data equivalently displayed in the normal display mode. For example, sub-pixel rendering processing may be performed on the second original pixel data to generate sub-pixel driving data, and the corresponding physical sub-pixels are driven according to the sub-pixel driving data.

8 is a schematic diagram of a foldable display panel according to an embodiment of the present invention. As shown in FIG. 8, the folding direction of the foldable display panel 102 is not limited to the horizontal folding direction of the above embodiment, but it may also be the vertical folding direction as in this embodiment. In addition, the number of folding is not limited to two folds, for example, in this embodiment, a folding method of three folds or more is also possible.

In summary, the driving circuit of the present invention can drive the foldable display panel to display in the ultra-high definition display mode and the normal display mode when the foldable display panel is in the folded state and the unfolded state, respectively. The ratio of the resolution of the physical pixels displayed on the foldable display panel in the normal display mode and the resolution of the corresponding first original pixel data is the first ratio, and the foldable display in the ultra high definition display mode The ratio of the resolution of the physical pixels displayed on the panel and the resolution of the corresponding second original pixel data is a second ratio, and the first ratio is greater than the second ratio. In addition, in some embodiments, the amount of image data equivalently displayed in the ultra-high-definition display mode of the same physical pixel in the foldable display panel may be greater than the amount of image data equivalently displayed in the normal display mode. In this way, the visual resolution of the foldable display panel in the folded state can be improved, and the display quality of the display device can be prevented from deteriorating due to the reduction in the number of physical pixels available for display. In other words, the foldable display panel can increase the visual resolution when the number of physical pixels available for display decreases, so as to meet the general user's demand for a high visual resolution for a small-sized display screen, so that the display The display quality of the device in the folded state can also meet the user's previous experience and habit of viewing a small screen with high visual resolution, thereby improving user acceptance of the display device.

Although the present invention has been disclosed as above with examples, it is not intended to limit the present invention. Any person with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention shall be subject to the scope defined in the appended patent application.

100: display device 102: Foldable display panel 104: Sensor 106: driving circuit 602: Gate driver FA, FB: display surface P11~PV2H: solid pixels H, V: the number of solid pixels R: red sub-pixel G: Green sub-pixel B: Blue sub-pixel D11~DVM: pixel data S702~S706: display method steps of the display device

FIG. 1 is a schematic diagram of a display device according to an embodiment of the present invention. 2 is a schematic diagram of an unfolded state or a folded state of a foldable display panel according to an embodiment of the present invention. FIG. 3 is a schematic diagram of physical pixel arrangement of a foldable display panel according to an embodiment of the invention. 4A is a schematic diagram of the relationship between the physical pixels of the foldable display panel and the second original pixel data according to an embodiment of the invention. 4B is a schematic diagram of second original pixel data according to an embodiment of the invention. FIG. 5 is a schematic diagram of physical pixel arrangement of a foldable display panel according to another embodiment of the invention. 6A and 6B are schematic diagrams of the configuration of the gate driver according to the embodiment of the invention. 7 is a flowchart of a display method of a display device according to an embodiment of the invention. 8 is a schematic diagram of a foldable display panel according to an embodiment of the present invention.

100: display device 102: Foldable display panel 104: Sensor 106: driving circuit

Claims (19)

A display device, including: A foldable display panel; A sensor to sense the folded state of the foldable display panel; and A driving circuit, coupled to the sensor and the foldable display panel, and driving the foldable display panel to operate in a normal display mode according to a first original pixel data when the foldable display panel is in an expanded state Display, when the foldable display panel is in the folded state, the foldable display panel is driven to display in an ultra-high-definition display mode according to a second original pixel data, wherein the foldable display panel is in the normal display mode The ratio of the resolution of the physical pixels displayed on the display to the resolution of a corresponding first original pixel data is the first ratio, the physical pixels displayed on the foldable display panel in the ultra-high definition display mode The ratio of the resolution of and the resolution of a corresponding second original pixel data is a second ratio, and the first ratio is greater than the second ratio. The display device as described in item 1 of the patent application range, wherein in the ultra-high-definition display mode, the driving circuit performs sub-pixel rendering processing on the second original pixel data to generate a sub-pixel driving data, and according to The sub-pixel driving data drives the corresponding physical sub-pixels. The display device as described in item 1 of the patent application range, wherein in the ultra-high-definition display mode, the number of physical pixels displayed on the foldable display panel is smaller than the number of physical pixels displayed in the normal display mode . The display device as described in item 1 of the patent application range, wherein in the normal display mode, the driving circuit drives the corresponding physical pixels by using the first original pixel data as the pixel driving data. The display device according to item 1 of the patent application scope, wherein the driving circuit includes a gate driver disposed on a side of the foldable display panel that intersects the folding line of the foldable display panel Or the side parallel to the fold line. A display method of a display device. The display device includes a foldable display panel. The display method of the display device includes: Determine whether the foldable display panel is in a folded state; When the foldable display panel is in the expanded state, the foldable display panel is driven to display in a normal display mode according to a first original pixel data; and When the foldable display panel is in a folded state, the foldable display panel is driven to display in an ultra-high-definition display mode according to a second original pixel data, Wherein the ratio of the resolution of the physical pixels displayed on the foldable display panel in the normal display mode to the resolution of a corresponding first original pixel data is the first ratio, in the ultra-high definition display mode The ratio of the resolution of the physical pixels displayed on the foldable display panel and the resolution of a corresponding second original pixel data is a second ratio, and the first ratio is greater than the second ratio. The display method of the display device as described in item 6 of the patent application scope includes: In the UHD display mode, sub-pixel rendering processing is performed on the second original pixel data to generate a sub-pixel driving data, and the corresponding physical sub-pixel is driven according to the sub-pixel driving data. The display method of the display device as described in Item 6 of the patent application range, wherein in the ultra-high-definition display mode, the number of physical pixels displayed on the foldable display panel is smaller than the number of entities displayed in the normal display mode The number of pixels. The display method of the display device as described in item 6 of the patent application scope includes: In the normal display mode, the first original pixel data is used as the pixel driving data to drive the corresponding physical pixels. A display device, including: A foldable display panel, including multiple physical pixels; A sensor to sense the folded state of the foldable display panel; and A driving circuit, coupled to the sensor and the foldable display panel, and driving the foldable display panel to operate in a normal display mode according to a first original pixel data when the foldable display panel is in an expanded state Display, when the foldable display panel is in a folded state, the foldable display panel is driven to display in an ultra-high-definition display mode according to a second original pixel data, wherein the same physical pixels in the foldable display panel are in The amount of image data equivalently displayed in the ultra-high definition display mode is larger than the amount of image data equivalently displayed in the normal display mode. The display device as described in item 10 of the patent application range, wherein in the ultra-high-definition display mode, the driving circuit performs sub-pixel rendering processing on the second original pixel data to generate a sub-pixel driving data, and according to The sub-pixel driving data drives the corresponding physical sub-pixels. The display device as described in item 10 of the patent application range, wherein in the ultra-high-definition display mode, the number of physical pixels displayed on the foldable display panel is smaller than the number of physical pixels displayed in the normal display mode . The display device as described in item 10 of the patent application range, wherein in the normal display mode, the driving circuit uses the first original pixel data as the pixel driving data to drive the corresponding physical pixels. The display device as claimed in item 10 of the patent application range, wherein in the normal display mode, wherein the driving circuit includes a gate driver, the gate driver is disposed in the foldable display panel and the foldable display The side where the fold line of the panel intersects or the side parallel to the fold line. The display device according to item 10 of the patent application scope, wherein the amount of image data on which the foldable display panel displays the same image in the ultra-high definition display mode and the normal display mode is different. A display method of a display device. The display device includes a foldable display panel. The display method of the display device includes: Determine whether the foldable display panel is in a folded state; When the foldable display panel is in an expanded state, driving the foldable display panel to display in a normal display mode; and When the foldable display panel is in a folded state, the foldable display panel is driven to display in an ultra-high-definition display mode, wherein the same physical pixels in the foldable display panel are displayed equivalently in the ultra-high-definition display mode The amount of image data is greater than the amount of image data equivalently displayed in the normal display mode. The amount of image data on which the foldable display panel displays the same image in the ultra-high definition display mode is different from that in the normal display mode. The display method of the display device as described in item 16 of the patent application scope includes: In the ultra-high definition display mode, sub-pixel rendering processing is performed on the original pixel data to generate a sub-pixel driving data, and the corresponding physical sub-pixel is driven according to the sub-pixel driving data. The display method of the display device as described in Item 16 of the patent application range, wherein in the ultra-high-definition display mode, the number of physical pixels displayed on the foldable display panel is smaller than the number of entities displayed in the normal display mode The number of pixels. The display method of the display device as described in item 16 of the patent application scope includes: In the normal display mode, the original pixel data is used as the pixel driving data to drive the corresponding physical pixels.

Images