WO2024221638A1 - Display device and display method thereof - Google Patents

Abstract

A display device and a display method thereof. The display device comprises a stretchable display panel (100) and a control circuit (200). The stretchable display panel (100) comprises a stretchable substrate (1) and multiple rows and multiple columns of pixel islands (2) arranged on the stretchable substrate (1) in an array. Each pixel island (2) comprises first pixels (20), and in a first direction, second pixels (3) having the same light-emitting color as the first pixels (20) are provided on the same side of the first pixels (20) and are adjacent to the first pixels (20), so as to form a plurality of pixel groups (10). The second pixels (3) are made of a deformable material. The control circuit (200) is configured to respectively control, when the stretchable display panel (100) is in a display state, the driving voltages of the first pixel (20) and the second pixel (3) in the same pixel group (10) to be inputted at the same timing when the stretchable display panel (100) is not stretched, and to be inputted at different timings when the stretchable display panel (100) is stretched. The present application solves the problem of viewing by a user being affected due to the resolutions of an existing stretchable display screen before and after being stretched being different caused by the resolution of the display screen after being stretched being reduced.

Description

Display device and display method thereof

This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on April 28, 2023, with application number 202310476786.3 and application name “Display device and display method thereof”, the entire contents of which are incorporated by reference into this application.

Technical Field

The present application relates to the field of display technology, and in particular to a display device and a display method thereof.

Background Art

With the development of the display industry, conventional rigid display screens can no longer meet the actual use needs of multiple scenarios, while flexible stretchable display screens are increasingly attracting the attention of consumers due to their variable display size and adaptability to a variety of scenarios. At present, by forming display pixel units, connecting wires, light-emitting units and other components on a flexible substrate, a stretchable display device that can be stretched/contracted in a specific direction and changed to a fixed shape can be formed. When the display screen of the stretchable display device is stretched, the distance between the pixels included in the display pixel unit will increase, thereby reducing the resolution of the display screen, resulting in different resolutions of the display screen before and after stretching, which in turn leads to a worse user experience when viewing the display screen.

Summary of the invention

One of the purposes of the embodiments of the present application is to provide a display device and a display method thereof, by setting a second pixel on the same side of each first pixel along a first direction, and the second pixel is stretchable, when the stretchable display panel is stretched, the area of the second pixel becomes larger, thereby solving the problem that the resolution of the existing stretchable display screen will decrease after stretching, resulting in different resolutions of the display screen before and after stretching, thereby affecting the user's viewing experience of the display screen.

In order to solve the above technical problems, the technical solution adopted in the embodiment of the present application is:

A first aspect of an embodiment of the present application provides a display device, including a stretchable display panel and a control circuit, wherein the stretchable display panel includes a stretchable substrate and a plurality of rows and columns of pixel islands arranged in an array on the stretchable substrate, wherein the pixel islands include first pixels, and along a first direction, a second pixel is adjacently arranged on the same side of each of the first pixels to form a plurality of pixel groups, and the first pixel and the second pixel in the same pixel group have the same luminous color; the first direction refers to the stretchable direction of the stretchable display panel; the second pixel is made of a deformable material; a stretch sensing module is also provided on the stretchable substrate, and the stretch sensing module is electrically connected to the control circuit, The stretch sensing module is used to sense the stretching degree of the stretchable substrate to determine whether the second pixel is stretched to a target area size; the control circuit is configured to control the driving voltage input timing of the first pixel and the second pixel in the same pixel group to be the same when the stretchable display panel is not stretched and is in a display state, and the stretch sensing module determines that the second pixel is not stretched to a target area size; and when the stretchable display panel is stretched in the first direction and is in a display state, and the stretch sensing module determines that the second pixel is stretched to a target area size, control the driving voltage input timing of the first pixel and the second pixel in the same pixel group to be different.

In one embodiment, the first direction is a column direction, and each row of the first pixels is provided with a row of the second pixels on the same side of the column direction; the first pixels and the second pixels in the pixel group are located in the same column;

The control circuit is configured to, when the stretchable display panel is not stretched and is in a display state, and the stretch sensing module determines that the second pixel is not stretched to a target area size, control the driving voltage input timing of the first pixels and the second pixels in two adjacent rows to be the same; and when the stretchable display panel is stretched in the column direction and is in a display state, and the stretch sensing module determines that the second pixel is stretched to a target area size, control the driving voltage input timing of the first pixels and the second pixels in two adjacent rows to be in a separate timing.

In one embodiment, along the column direction, the size of each of the second pixels is smaller than the size of the first pixels in the same column.

In one embodiment, along the row direction, the size of each of the second pixels is equal to the size of the first pixels in the same column.

In one embodiment, the sizes of each of the second pixels in the same row of the second pixels in the column direction are the same.

In one embodiment, each row of the first pixels is connected together through a connection line and connected to a first gate driving circuit, and each row of the second pixels is connected together through a connection line and connected to a second gate driving circuit;

The first gate driving circuit and the second gate driving circuit are both electrically connected to the control circuit. The first gate driving circuit is used to scan the first pixels row by row along the column direction, and the second gate driving circuit is used to scan the second pixels row by row along the column direction.

In one embodiment, the first direction is a row direction, and each column of the first pixels is provided with a column of the second pixels on the same side of the row direction; the first pixels and the second pixels in the pixel group are located in the same row;

The control circuit is configured to, when the stretchable display panel is not stretched and is in a display state, and the stretch sensing module determines that the second pixel is not stretched to a target area size, control the driving voltage input timing of the first pixel and the second pixel in the same row to be the same; and when the stretchable display panel is stretched in the row direction and is in a display state, and the stretch sensing module determines that the second pixel is stretched to a target area size, control the driving voltage input timing of the first pixel and the second pixel in the same row to be separated.

In one embodiment, along the row direction, the size of each of the second pixels is smaller than the size of the first pixels in the same row.

In one embodiment, along the column direction, the size of each of the second pixels is equal to the size of the first pixels in the same row.

In one embodiment, the sizes of each of the second pixels in the same column of the second pixels in the row direction are the same.

In one embodiment, the first pixels in the same row are connected together through a connecting line and connected to a first gate driving circuit, and the second pixels in the same row are connected together through a connecting line and connected to a second gate driving circuit;

The first gate driving circuit and the second gate driving circuit are both electrically connected to the control circuit. The first gate driving circuit is used to scan the first pixels row by row along the column direction, and the second gate driving circuit is used to scan the second pixels row by row along the column direction.

In one embodiment, along the first direction, the second pixel located between two adjacent first pixels is located in the middle of the two adjacent first pixels.

In one embodiment, at least one wire extending along the first direction is further provided on the stretchable substrate, and the wire is electrically connected to the control circuit. The control circuit is also used to detect the resistance of the wire, and determine whether the stretchable substrate is stretched in the first direction and whether the second pixel is stretched to the target area size according to the change in the resistance value of the wire.

A second aspect of an embodiment of the present application provides a display method of a display device, wherein the display device is the display device as described in the above embodiment, and the display method includes:

Acquire the state of the stretchable display panel, and determine whether the second pixel is stretched to a target area size;

When the stretchable display panel is not stretched and is in a display state, and the second pixels are not stretched to a target area size, controlling the first pixels and the second pixels in two adjacent rows to use the same timing input drive voltage;

When the stretchable display panel is stretched in the column direction and is in a display state, and the second pixels are stretched to a target area size, two adjacent rows of the first pixels and the second pixels are controlled to input driving voltages in a time-sequential manner.

A third aspect of an embodiment of the present application provides a display method of a display device, wherein the display device is the display device as described in the above embodiment, and the display method includes:

Acquire the state of the stretchable display panel, and determine whether the second pixel is stretched to a target area size;

When the stretchable display panel is not stretched and is in a display state, and the second pixel is not stretched to a target area size, controlling the first pixel and the second pixel in the same row to use the same timing input drive voltage;

When the stretchable display panel is stretched in the row direction and is in a display state, and the second pixel is stretched to a target area size, the first pixel and the second pixel in the same row are controlled to input a driving voltage in a time-sequential manner.

Compared with the prior art, the display device provided by the first aspect of the embodiment of the present application is provided with a second pixel on the same side of each first pixel along the first direction to form a pixel group. When the stretchable display panel is not stretched in the display state, the second pixel has a small area, and the first pixel and the second pixel in the same pixel group are displayed as a whole; when the stretchable display panel is stretched in the first direction in the display state, the second pixel is stretched and the area becomes larger, so that the first pixel and the second pixel in the same pixel group can be displayed separately. In this way, although the distance between two adjacent first pixels in the first direction increases due to the stretching of the stretchable display panel, the compensation display of the second pixel makes the number of luminous pixels per unit area not reduce too much, thereby reducing the phenomenon of resolution reduction after the stretchable display panel is stretched in the first direction, so that the resolution of the display panel before and after stretching is similar, improving the user experience.

It can be understood that the beneficial effects of the second and third aspects mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

FIG1 is a schematic diagram of the structure of a display device provided in Embodiment 1 of the present application;

FIG2 is a schematic structural diagram of a stretchable display panel of a display device provided in Embodiment 1 of the present application when the stretchable display panel is not stretched;

FIG3 is a schematic structural diagram of a stretchable display panel of a display device provided in Embodiment 1 of the present application after being stretched;

4 is a cascade diagram of driving voltage inputs of a first pixel and a second pixel of a stretchable display panel of a display device provided in Embodiment 1 of the present application;

5 is a timing diagram of driving voltage inputs to the first pixel and the second pixel in FIG. 4 when the stretchable display panel of the display device provided in the first embodiment of the present application is not stretched;

6 is a timing diagram of driving voltage inputs to the first pixel and the second pixel in FIG. 4 when the stretchable display panel of the display device provided in the first embodiment of the present application is stretched;

7 is a schematic structural diagram of a stretchable display panel of a display device provided in Embodiment 2 of the present application when the stretchable display panel is not stretched;

FIG8 is a schematic structural diagram of a stretchable display panel of a display device provided in Embodiment 2 of the present application after being stretched;

9 is a cascade diagram of driving voltage inputs of a first pixel and a second pixel of a stretchable display panel of a display device provided in Embodiment 2 of the present application;

10 is a timing diagram of driving voltage inputs to the first pixel and the second pixel in FIG. 9 when the stretchable display panel of the display device provided in the second embodiment of the present application is not stretched;

11 is a timing diagram of driving voltage inputs to the first pixel and the second pixel in FIG. 9 when the stretchable display panel of the display device provided in the second embodiment of the present application is stretched;

FIG12 is a schematic flow chart of a display method of a display device provided in Embodiment 3 of the present application;

FIG. 13 is a flow chart of a display method of a display device provided in Embodiment 4 of the present application.

Reference numerals: 100, stretchable display panel; 200, control circuit;

1. stretchable substrate; 2. pixel island; 20. first pixel;

3. second pixel; 10. pixel group;

4. Stretch sensing module.

Embodiments of the present invention

In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

It should also be noted that, in the embodiments of the present application, the same figure mark is used to represent the same component or the same part. For the same parts in the embodiments of the present application, the figure may only mark one of the parts or components as an example. It should be understood that the figure mark also applies to other identical parts or components.

The embodiments of the present application provide a display device and a display method thereof, which solve the problem that the resolution of an existing stretchable display screen decreases after being stretched, resulting in different resolutions of the display screen before and after stretching, thereby affecting the user's viewing experience of the display screen.

Embodiment 1

Referring to FIG1 , the display device provided by the embodiment of the present application includes a stretchable display panel 100 and a control circuit 200. The stretchable display panel 100 includes a stretchable substrate 1 and a plurality of rows and columns of pixel islands 2 arranged in an array on the stretchable substrate 1. The pixel islands 2 include first pixels 20, wherein the first pixels 20 are R, G, and B pixels in FIG1 . The pixel islands 2 may include a rigid substrate and a first pixel 20 arranged on the rigid substrate. The rigid substrate may be made of a rigid material. The rigid substrate is arranged on the stretchable substrate 1. In this way, when the stretchable substrate 1 is stretched, only the position in contact with the rigid substrate does not deform, and all other positions of the stretchable substrate 1 are deformed. Since the first pixel 20 is located on the rigid substrate, when the stretchable substrate 1 is stretched, the first pixel 20 does not deform and the area does not change.

Along the first direction, a second pixel 3 is adjacently arranged on the same side of each first pixel 20 to form a plurality of pixel groups 10, and the first pixel 20 and the second pixel 3 in the same pixel group 10 have the same luminous color; the first direction refers to the stretchable direction of the stretchable display panel 100; the second pixel 3 is made of a deformable material; the control circuit 200 is configured to control the driving voltage input timing of the first pixel 20 and the second pixel 3 in the same pixel group 10 to be the same when the stretchable display panel 100 is not stretched and is in a display state; and when the stretchable display panel 100 is stretched in the first direction and is in a display state, the driving voltage input timing of the first pixel 20 and the second pixel 3 in the same pixel group 10 is controlled to be different.

It should be noted that, along the first direction, a second pixel 3 is disposed adjacent to the same side of each first pixel 20 to form a plurality of pixel groups 10, that is, each first pixel 20 has a second pixel 3 corresponding thereto, and the first pixels 20 and the second pixels 3 corresponding to each other form a pixel group 10. When the stretchable display panel 100 is not stretched and is in a display state, the driving voltage input timing for controlling the first pixels 20 and the second pixels 3 in the same pixel group 10 is the same. Since the area of the second pixel 3 is small when not stretched, that is, the first pixels 20 and the second pixels 3 in the same pixel group 10 are displayed as a whole, and the driving voltage is input with the same timing, so that the first pixels 20 and the second pixels 3 in the same pixel group 10 emit light at the same time. When the stretchable display panel 100 is stretched in a first direction and is in a display state, the driving voltages of the first pixel 20 and the second pixel 3 in the same pixel group 10 are controlled to be input sequentially, that is, the driving voltages of the first pixel 20 and the second pixel 3 in the same pixel group 10 are input sequentially. Since the area of the second pixel 3 becomes larger after stretching, the first pixel 20 and the second pixel 3 in the same pixel group 10 need to be displayed separately.

Through the above-mentioned setting, although the distance between two adjacent first pixels 20 in the first direction becomes larger due to the stretching of the stretchable display panel 100, the compensatory display of the second pixel 3 ensures that the number of luminous pixels per unit area will not be reduced too much, thereby reducing the phenomenon of resolution decrease after the stretchable display panel 100 is stretched in the first direction, so that the resolution of the display panel before and after stretching is similar, thereby improving the user experience.

Among them, the stretchable display panel 100 is not stretched and is in a display state, which means that the stretchable display panel 100 is in a natural state, and the stretchable substrate 1 and the second pixel 3 are not subjected to any stretching force in any direction. The stretchable display panel 100 is stretched in a first direction and is in a display state, which means that after the stretchable display panel 100 is stretched, the area of the second pixel 3 is stretched to the target area size, and the target area size can be set according to the specific display situation, but it is necessary to ensure that the second pixel 3 of the target area can be displayed as an independent pixel. For example, when the second pixel 3 in the embodiment of the present application is not stretched, the size in the first direction can be set to 8-12 microns, so that it can be ensured that the second pixel 3 can be stretched into an independently displayable pixel for display within the stretchable range of the stretchable display panel 100.

In some embodiments, a stretch sensing module 4 is further provided on the stretchable substrate 1, and the stretch sensing module 4 is electrically connected to the control circuit 200, and the stretch sensing module 4 is used to sense the stretching degree of the stretchable substrate 1. In this way, the stretching degree of the second pixel 3 can be determined by the stretching degree of the stretchable substrate sensed by the stretch sensing module 4, thereby determining whether the second pixel 3 is stretched to the target area size, so as to determine that the stretchable display panel 100 is stretched and in the display state, thereby accurately controlling the driving voltage of the first pixel 20 and the second pixel 3 in the same pixel group 10 to be input in a time-sequential manner, so as to effectively avoid the area of the second pixel 3 not reaching the target area size, and the first pixel 20 and the second pixel 3 inputting the driving voltage in a time-sequential manner, resulting in uneven brightness of the second pixel 3 and the first pixel 20 on the display panel, affecting the display effect.

It should be noted that the stretch sensing module 4 in the embodiment of the present application is only used to sense the degree to which the stretchable substrate 1 is stretched, so as to determine the degree to which the second pixel 3 is stretched according to the degree to which the stretchable substrate is stretched, thereby judging whether the area of the second pixel 3 has reached the target area, so as to input the driving voltage to the first pixel 20 and the second pixel 3 in the same pixel group 10 in a time sequence. Therefore, the specific structure of the stretch sensing module 4 is not specifically limited in this application.

In some embodiments, at least one conductive wire extending along a first direction is provided on the stretchable substrate 1; the conductive wire is electrically connected to the control circuit 200, and the control circuit 200 is also used to detect the resistance of the conductive wire, and when the resistance of the conductive wire increases from its initial value to a first threshold value, it is determined that the stretchable substrate 1 is stretched in the first direction, that is, the stretchable display panel 100 is stretched in the first direction. At this time, the second pixel 3 is stretched to the target area size, and the control circuit 200 can control the first pixel 20 and the second pixel 3 in the same pixel group 10 to input the driving voltage in a timed manner.

In some embodiments, referring to Figures 2-3, the first direction is the column direction Y, and each row of first pixels 20 is provided with a row of second pixels 3 on the same side in the column direction Y; the first pixels 20 and the second pixels 3 in the pixel group 10 are located in the same column; the control circuit 200 is configured to control the driving voltage input timing of the two adjacent rows of first pixels 20 and second pixels 3 to be the same when the stretchable display panel 100 is not stretched and is in a display state; and when the stretchable display panel 100 is stretched in the column direction Y and is in a display state, the driving voltage of the two adjacent rows of first pixels 20 and second pixels 3 is controlled to be input in a timing sequence.

In this way, a corresponding row of second pixels 3 is arranged on the same side of each row of first pixels 20 of multiple rows arranged along the column direction Y. When the stretchable display panel 100 is stretched in the column direction Y, the second pixels 3 will also be enlarged. At this time, the second pixels 3 will be displayed as independent pixels. The control circuit 200 will input driving voltage to the first pixels 20 and the second pixels 3 in a time-sharing manner, so that the number of pixels per unit area is slightly different from the number of pixels per unit area when the stretchable display panel 100 is not stretched, thereby not having a significant impact on the resolution and not reducing the display effect of the stretchable display panel 100.

It should be noted that, referring to FIG. 2-FIG. 3, the stretchable direction of the stretchable display panel 100 is the column direction Y, and each row of first pixels 20 is provided with a row of second pixels 3 on the same side in the column direction Y, so that each first pixel 20 can be ensured to have a corresponding second pixel 3, and the luminous colors of the first pixels 20 and the second pixels 3 corresponding to each other are the same. When the stretchable display panel 100 is not stretched, each first pixel 20 will be displayed simultaneously with a second pixel 3 as a whole, which can ensure that the overall display brightness of the stretchable display panel 100 is more uniform. When the stretchable display panel 100 is stretched, since the number of rows of the second pixels 3 is the same as the number of rows of the first pixels 20, it can be ensured that the distribution of pixels at various locations on the stretchable display panel 100 is relatively uniform, and it can be ensured that the number of pixels per unit area changes slightly, and the problem of poor display effect caused by different resolutions before and after the stretching of the stretchable display panel 100 will not be caused.

Specifically, referring to Figure 4, the first pixels 20 of each row can be connected together by connecting lines, and the first pixels 20 connected together in each row can be connected to the first gate driving circuit, the second pixels 3 of each row can also be connected together by connecting lines, and the second pixels 3 connected together in each row can be connected to the second gate driving circuit, the first gate driving circuit and the second gate driving circuit are both electrically connected to the control circuit 200, the first gate driving circuit is used to scan the first pixels 20 row by row along the column direction Y, and the second gate driving circuit is used to scan the second pixels 3 row by row along the column direction Y, GA1 in Figure 4 represents the first pixel 20 of the first row being scanned, GAn represents the first pixel 20 of the nth row being scanned, GB1 represents the second pixel 3 of the first row being scanned, and GBn represents the second pixel 3 of the nth row being scanned.

In some embodiments, a conventional GOA model may be used to input a driving voltage to each level of the scan, such as a common 23T1C/21T1C/11T1C model.

When the stretchable display panel 100 is not stretched and is in the display state, the control circuit 200 controls the first pixel 20 and the second pixel 3 to be inputted sequentially at the same time. Specifically, as shown in FIG5 , the first gate driving circuit first scans the first pixel GA1 of the first row and the second gate driving circuit scans the second pixel GB1 of the first row at the same time. The control circuit 200 simultaneously inputs the same driving voltage to the scanned GA1 and GB1, and then simultaneously scans the second row. The control circuit 200 then simultaneously inputs the same driving voltage to the scanned GA2 and GB2 until the last row is scanned. In this way, the first pixel 20 of the first row and the second pixel 3 of the first row are driven to emit light at the same time. Since the second pixel 3 has a small area when it is not stretched and the display effect is small, it is regarded as a whole with the first pixel 20 and displayed simultaneously, which not only does not affect the resolution, but also can enhance the display brightness of the display panel, which is conducive to improving the display effect.

When the stretchable display panel 100 is stretched in the column direction Y and is in a display state, the control circuit 200 controls the first pixel 20 and the second pixel to input a driving voltage in a three-point time sequence. Specifically, as shown in FIG6 , first, the first gate driving circuit scans the first pixel GA1 of the first row, and the control circuit 200 inputs a driving voltage to the scanned first pixel GA1 of the first row. Then, the second gate driving circuit scans the second pixel GB1 of the first row, and the control circuit 200 inputs a driving voltage to the scanned second pixel GB1 of the first row. Then, the first gate driving circuit scans the first pixel GA2 of the second row, and the control circuit 200 inputs a driving voltage to the scanned first pixel GA2 of the second row. According to GA1, GB1, GA2, The driving voltage is input in the order of GB2, ..., GAn, GBn, so that each row of second pixels 3 is displayed separately from each row of first pixels 20. For example, there are four rows of first pixels 20 and four rows of second pixels 3. When the second pixels 3 are stretched and enlarged, the area of the second pixels 3 is slightly different from the area of the first pixels 20. The pixels that can be displayed separately on the stretchable substrate 1 are equivalent to eight rows. The eight rows of pixels are scanned and the driving voltage is input in turn. This not only makes the pixels of the display panel evenly distributed and displayed, but also the number of pixels per unit area will not change too much, so that the resolution of the stretchable display panel 100 before and after stretching is not much different, and will not affect the display effect of the stretchable display panel 100.

In the embodiment of the present application, two independent GOA models are used to feed signals to the first pixel 20 and the second pixel 3 respectively. Of course, a set of GOA models can also be used to feed signals to the first pixel 20 and the second pixel 3. Specifically, when the stretchable display panel 100 is not stretched and is in a display state, a set of GOA models is used to feed signals to the first pixel 20 and the second pixel 3 at the same time, so that the first pixel 20 and the second pixel 3 in the same pixel group 10 are displayed as a whole and emit light at the same time. When the stretchable display panel 100 is stretched in the column direction Y and is in a display state, a set of GOA models is used to feed signals to the first pixel 20 and the second pixel 3 in the same pixel group 10. It should be noted that it is necessary to set up another set of time-sharing control timing control GOA models to feed signals to the first pixel 20 and the second pixel 3 in the same pixel group 10 in a time-sharing manner to ensure that the driving voltage input timing of the first pixel 20 and the second pixel 3 reaches the timing shown in Figures 5 and 6.

In some embodiments, referring to FIG. 2-FIG. 3, along the column direction Y, the size of each second pixel 3 is smaller than the size of the first pixel 20 in the same column; along the row direction X, the size of each second pixel 3 is equal to the size of the first pixel 20 in the same column. In this way, the second pixel 3 can have a smaller area when not stretched, and can be displayed as a whole with the first pixel 20. After stretching, the area of the second pixel 3 can be roughly the same as the area of the first pixel 20, and the second pixel 3 can be displayed separately, thereby ensuring that the number of pixels per unit area is not reduced too much, and the resolution of the stretchable display panel 100 before and after stretching is not much different, which will not affect the display effect.

It should be noted that since the stretchable direction of the stretchable display panel 100 is the column direction Y, the size of the second pixel 3 in the column direction Y can be enlarged by stretching, while the size of the second pixel 3 in the row direction X remains unchanged. Therefore, it is necessary to set the size of the second pixel 3 in the row direction X to be the same as the size of the first pixel 20 in the same column in the row direction X, and set the size of the second pixel 3 in the column direction Y to be smaller than the size of the first pixel 20 in the same column in the column direction Y. In this way, when the second pixel 3 is stretched, the size of the second pixel 3 in the column direction Y will become larger, so that the area of the second pixel 3 remains basically the same as the area of the first pixel 20 in the same column.

In some embodiments, referring to FIG3 , each second pixel 3 in the same row of second pixels 3 has the same size in the column direction Y. In this way, the second pixels 3 in the same row can have the same area after stretching, so that the first pixels 20 and the second pixels 3 are evenly distributed, thereby achieving a better display effect of the entire display panel.

In the first embodiment of the present application, along the first direction, the second pixel 3 located between two adjacent first pixels 20 is located in the middle of the two adjacent first pixels 20. That is, along the column direction Y, a row of second pixels 3 located between two adjacent rows is located in the middle of the two adjacent rows of first pixels 20, so that after the second pixel 3 is stretched, the distance between the second pixel 3 with a larger area and the two adjacent first pixels 20 is equal, so that the distribution of the first pixel 20 and the second pixel 3 is more uniform, which is conducive to improving the display effect.

Embodiment 2

Referring to Figures 7-8, the display device provided in the second embodiment of the present application is different from that in the first embodiment, except that the stretchable direction of the stretchable display panel 100 is different. In the second embodiment of the present application, the first direction is the row direction X, and each column of first pixels 20 is provided with a column of second pixels 3 on the same side in the row direction X; the first pixels 20 and the second pixels 3 in the pixel group 10 are located in the same row; the control circuit 200 is configured to control the first pixels 20 and the second pixels 3 in the same row to have the same driving voltage input timing when the stretchable display panel 100 is not stretched and is in the display state; and when the stretchable display panel 100 is stretched in the row direction X and is in the display state, the driving voltage of the first pixels 20 and the second pixels 3 in the same row is controlled to be input in a timed manner.

In this way, a corresponding column of second pixels 3 is arranged on the same side of each column of the multiple columns of first pixels 20 arranged along the row direction X. When the stretchable display panel 100 is stretched in the row direction X, the second pixels 3 will also be enlarged. At this time, the second pixels 3 will be displayed as independent pixels. The control circuit 200 will input driving voltage to the first pixels 20 and the second pixels 3 in a time-sharing manner, so that the number of pixels per unit area is slightly different from the number of pixels per unit area when the stretchable display panel 100 is not stretched, thereby not having a significant impact on the resolution and not reducing the display effect of the stretchable display panel 100.

It should be noted that, referring to Figures 7-8, the stretchable direction of the stretchable display panel 100 is the row direction X, and each column of first pixels 20 is provided with a column of second pixels 3 on the same side in the row direction X, so that each first pixel 20 can be ensured to have a corresponding second pixel 3, and the luminous colors of the first pixels 20 and the second pixels 3 corresponding to each other are the same. When the stretchable display panel 100 is not stretched, each first pixel 20 will be displayed simultaneously with a second pixel 3 as a whole, which can ensure that the overall display brightness of the stretchable display panel 100 is more uniform. When the stretchable display panel 100 is stretched, since the number of columns of the second pixels 3 is the same as the number of columns of the first pixels 20, it can be ensured that the distribution of pixels at various locations on the stretchable display panel 100 is relatively uniform, and it can be ensured that the number of pixels per unit area changes slightly, and the problem of poor display effect caused by different resolutions before and after the stretching of the stretchable display panel 100 will not be caused.

Specifically, referring to Figure 9, the first pixels 20 in the same row can be connected together by connecting lines, and the first pixels 20 connected together in each row can be connected to the first gate driving circuit, the second pixels 3 in the same row can also be connected together by connecting lines, and the second pixels 3 connected together in each row can be connected to the second gate driving circuit, the first gate driving circuit and the second gate driving circuit are both electrically connected to the control circuit 200, the first gate driving circuit is used to scan the first pixels 20 row by row along the column direction Y, and the second gate driving circuit is used to scan the second pixels 3 row by row along the column direction Y, GA1 in Figure 9 represents the first pixel 20 of the first row being scanned, GAn represents the first pixel 20 of the nth row being scanned, GB1 represents the second pixel 3 of the first row being scanned, and GBn represents the second pixel 3 of the nth row being scanned.

When the stretchable display panel 100 is not stretched and is in the display state, the control circuit 200 controls the first pixel 20 and the second pixel 3 to be inputted sequentially at the same time. Specifically, as shown in FIG10 , the first gate driving circuit first scans the first pixel GA1 of the first row and the second gate driving circuit scans the second pixel GB1 of the first row at the same time. The control circuit 200 simultaneously inputs the same driving voltage to the scanned GA1 and GB1, and then simultaneously scans the second row. The control circuit 200 then simultaneously inputs the same driving voltage to the scanned GA2 and GB2 until the last row is scanned. In this way, the first pixel 20 of the first row and the second pixel 3 of the first row are simultaneously driven to emit light. Since the second pixel 3 has a small area when not stretched and has a small display effect, it is regarded as a whole and displayed simultaneously with the first pixel 20, which not only does not affect the resolution, but also enhances the display brightness of the display panel, which is beneficial to improving the display effect.

When the stretchable display panel 100 is stretched in the column direction Y and is in a display state, the control circuit 200 controls the first pixel 20 and the second pixel 3 to input a driving voltage in a time-sequential manner. Specifically, as shown in FIG11 , the first gate driving circuit first scans the first pixel GA1 in the first row of pixels, and the control circuit 200 inputs a driving voltage to the first pixel GA1 in the scanned first row. Then, the second gate driving circuit scans the second pixel GB1 in the first row, and the control circuit 200 inputs a driving voltage to the second pixel GB1 in the scanned first row. Then, the first gate driving circuit scans the first pixel GA2 in the second row, and the control circuit 200 inputs a driving voltage to the first pixel GA2 in the scanned second row. The driving voltage is input in sequence in the order of GA1, GB1, GA2, GB2, ..., GAn, GBn, so that the second pixel 3 in the same row It is displayed separately from the first pixel 20. For example, there are four columns of first pixels 20, four columns of second pixels 3, and four rows of pixels in total. Each row has a first pixel 20 and a second pixel 3. When the second pixel 3 is stretched and enlarged, the area of the second pixel 3 is slightly different from the area of the first pixel 20. The pixels that can be displayed separately on the stretchable substrate 1 are equivalent to four rows and eight columns. First, the first pixel 20 in the first row is scanned, then the second pixel 3 in the first row is scanned, then the first pixel 20 in the second row is scanned, and then the second pixel 3 in the second row is scanned. The four rows of pixels are scanned in turn according to this scanning order and the driving voltage is input. This not only makes the pixels of the display panel evenly distributed and displayed, but also the number of pixels per unit area will not change too much, so that the resolution of the stretchable display panel 100 before and after stretching is not much different, and will not affect the display effect of the stretchable display panel 100.

In some embodiments, referring to FIG. 7-FIG. 8, along the row direction X, the size of each second pixel 3 is smaller than the size of the first pixel 20 in the same row; along the column direction Y, the size of each second pixel 3 is equal to the size of the first pixel 20 in the same row. In this way, the second pixel 3 can have a smaller area when not stretched, and can be displayed as a whole with the first pixel 20. After stretching, the area of the second pixel 3 can be roughly the same as that of the first pixel 20, and the second pixel 3 can be displayed separately, thereby ensuring that the number of pixels per unit area is not reduced too much, and the resolution of the stretchable display panel 100 before and after stretching is not much different, which will not affect the display effect.

It should be noted that since the stretchable direction of the stretchable display panel 100 is the row direction X, the size of the second pixel 3 in the row direction X can be enlarged by stretching, while the size of the second pixel 3 in the column direction Y remains unchanged. Therefore, it is necessary to set the size of the second pixel 3 in the column direction Y to be the same as the size of the first pixel 20 in the same row in the column direction Y, and the size of the second pixel 3 in the row direction X is set to be smaller than the size of the first pixel 20 in the same row in the row direction X. In this way, when the second pixel 3 is stretched, the size of the second pixel 3 in the row direction X will become larger, so that the area of the second pixel 3 remains basically the same as the area of the first pixel 20 in the same column.

In some embodiments, referring to FIG8 , each second pixel 3 in the same column of second pixels 3 has the same size in the row direction X. In this way, the second pixels 3 in the same column can have the same area after stretching, so that the first pixels 20 and the second pixels 3 are evenly distributed, thereby achieving a better display effect of the entire display panel.

In the second embodiment of the present application, along the first direction, the second pixel 3 located between two adjacent first pixels 20 is located in the middle of the two adjacent first pixels 20. That is, along the row direction X, a column of second pixels 3 located between two adjacent columns is located in the middle of the two adjacent columns of first pixels 20, so that after the second pixel 3 is stretched, the distance between the second pixel 3 with a larger area and the two adjacent first pixels 20 is equal, so that the distribution of the first pixel 20 and the second pixel 3 is more uniform, which is conducive to the improvement of the display effect.

Embodiment 3

Referring to FIG. 12 , a third embodiment of the present application provides a display method of a display device, wherein the display device is the display device of the first embodiment described above, and the display method includes:

S301 , obtaining the state of the stretchable display panel 100 .

Specifically, the stretching degree of the stretchable substrate 1 can be sensed by the stretch sensing module 4 provided on the stretchable substrate 1. Since the second pixel 3 is provided on the stretchable substrate 1, the second pixel 3 will be stretched as the stretchable substrate 1 is stretched. The stretching degree of the second pixel 3 can be obtained according to the stretching degree of the stretchable display substrate, thereby obtaining the state of the stretchable display panel 100. It should be noted that as long as the area of the second pixel 3 does not reach the target area size after being stretched, it means that the state of the stretchable display panel 100 is not stretched and is in the display state. When the area of the second pixel 3 reaches the target area size after being stretched, it means that the state of the stretchable display panel 100 is stretched and is in the display state.

S302 , when the stretchable display panel 100 is not stretched and is in a display state, controlling two adjacent rows of first pixels 20 and second pixels 3 to input a driving voltage with the same timing.

S303 , when the stretchable display panel 100 is stretched in the column direction Y and is in the display state, the first pixels 20 and the second pixels in two adjacent rows are controlled to input a driving voltage in a three-point time sequence.

Through the display method of the third embodiment of the present application, when the stretchable display panel 100 is not stretched in the display state, the area of the second pixel 3 is small, and the first pixel 20 and the second pixel 3 in the same pixel group 10 are displayed as a whole; when the stretchable display panel 100 is stretched in the first direction in the display state, the second pixel 3 is stretched and the area becomes larger, so that the first pixel 20 and the second pixel 3 in the same pixel group 10 can be displayed separately. In this way, although the distance between two adjacent first pixels 20 in the first direction increases due to the stretching of the stretchable display panel 100, the compensation display of the second pixel 3 does not reduce the number of pixels emitting light per unit area too much, thereby reducing the phenomenon of the resolution reduction of the stretchable display panel 100 after being stretched in the first direction, so that the resolution of the display panel before and after stretching is similar, and the graininess of the screen display is reduced.

Embodiment 4

Referring to FIG. 13 , a fourth embodiment of the present application provides a display method for a display device, wherein the display device is the display device of the second embodiment, and the display method includes:

S401, obtaining the state of the stretchable display panel 100;

S402, when the stretchable display panel 100 is not stretched and is in a display state, controlling the first pixel 20 and the second pixel 3 in the same row to input a driving voltage with the same timing;

S403 , when the stretchable display panel 100 is stretched in the row direction X and is in a display state, the first pixel 20 and the second pixel in the same row are controlled to input a driving voltage in a three-point time sequence.

The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (15)

A display device comprises a stretchable display panel (100) and a control circuit (200), wherein the stretchable display panel (100) comprises a stretchable substrate (1) and a plurality of rows and columns of pixel islands (2) arranged in an array on the stretchable substrate (1), wherein the pixel islands (2) comprise first pixels (20), wherein: Along a first direction, a second pixel (3) is disposed adjacent to the same side of each of the first pixels (20) to form a plurality of pixel groups (10); the first pixels (20) and the second pixels (3) in the same pixel group (10) emit the same luminous color; the first direction refers to a stretchable direction of the stretchable display panel (100); The second pixel (3) is made of a deformable material; The stretchable substrate (1) is also provided with a stretch sensing module (4), the stretch sensing module (4) being electrically connected to the control circuit (200), and the stretch sensing module (4) being used to sense the stretching degree of the stretchable substrate (1) so as to determine whether the second pixel (3) is stretched to a target area size; The control circuit (200) is configured to, when the stretchable display panel (100) is not stretched and is in a display state, and the stretch sensing module (4) determines that the second pixel (3) is not stretched to a target area size, control the driving voltage input timing of the first pixel (20) and the second pixel (3) in the same pixel group (10) to be the same; and when the stretchable display panel (100) is stretched in the first direction and is in a display state, and the stretch sensing module (4) determines that the second pixel (3) is stretched to a target area size, control the driving voltage input timing of the first pixel (20) and the second pixel (3) in the same pixel group (10) to be different. The display device according to claim 1, wherein The first direction is a column direction (Y), and each row of the first pixels (20) is provided with a row of the second pixels (3) on the same side in the column direction (Y); the first pixels (20) and the second pixels (3) in the pixel group (10) are located in the same column; The control circuit (200) is configured to, when the stretchable display panel (100) is not stretched and is in a display state, and the stretch sensing module (4) determines that the second pixel (3) is not stretched to a target area size, control the driving voltage input timing of the first pixels (20) and the second pixels (3) in two adjacent rows to be the same; and when the stretchable display panel (100) is stretched in the column direction (Y) and is in a display state, and the stretch sensing module (4) determines that the second pixel (3) is stretched to a target area size, control the driving voltage input timing of the first pixels (20) and the second pixels (3) in two adjacent rows to be divided into different driving voltage input timings. The display device according to claim 2, wherein: Along the column direction (Y), the size of each of the second pixels (3) is smaller than the size of the first pixels (20) in the same column. The display device according to claim 3, wherein: Along the row direction (X), the size of each of the second pixels (3) is equal to the size of the first pixel (20) in the same column. The display device according to claim 4, wherein: The size of each of the second pixels (3) in the same row of the second pixels (3) in the column direction (Y) is the same. The display device according to any one of claims 2 to 5, wherein: The first pixels (20) in each row are connected together through a connecting line and connected to a first gate driving circuit, and the second pixels (3) in each row are connected together through a connecting line and connected to a second gate driving circuit; The first gate driving circuit and the second gate driving circuit are both electrically connected to the control circuit (200), the first gate driving circuit being used to scan the first pixels (20) row by row along the column direction (Y), and the second gate driving circuit being used to scan the second pixels (3) row by row along the column direction (Y). The display device according to claim 1, wherein The first direction is a row direction (X), and each column of the first pixels (20) is provided with a column of the second pixels (3) on the same side in the row direction (X); the first pixels (20) and the second pixels (3) in the pixel group (10) are located in the same row; The control circuit (200) is configured to, when the stretchable display panel (100) is not stretched and is in a display state, and the stretch sensing module (4) determines that the second pixel (3) is not stretched to a target area size, control the driving voltage input timing of the first pixel (20) and the second pixel (3) in the same row to be the same; and when the stretchable display panel (100) is stretched in the row direction (X) and is in a display state, and the stretch sensing module (4) determines that the second pixel (3) is stretched to a target area size, control the driving voltage input timing of the first pixel (20) and the second pixel (3) in the same row to be separated. The display device according to claim 7, wherein: Along the row direction (X), the size of each of the second pixels (3) is smaller than the size of the first pixels (20) in the same row. The display device according to claim 8, wherein Along the column direction (Y), the size of each of the second pixels (3) is equal to the size of the first pixels (20) in the same row. The display device according to claim 9, wherein The size of each of the second pixels (3) in the same column of the second pixels (3) in the row direction (X) is the same. The display device according to any one of claims 7 to 10, wherein: The first pixels (20) in the same row are connected together through a connecting line and connected to a first gate driving circuit, and the second pixels (3) in the same row are connected together through a connecting line and connected to a second gate driving circuit; The first gate driving circuit and the second gate driving circuit are both electrically connected to the control circuit (200), the first gate driving circuit being used to scan the first pixels (20) row by row along the column direction (Y), and the second gate driving circuit being used to scan the second pixels (3) row by row along the column direction (Y). The display device according to claim 1, wherein Along the first direction, the second pixel (3) located between two adjacent first pixels (20) is located in the middle of the two adjacent first pixels (20). The display device according to claim 1, wherein The stretchable substrate (1) is also provided with at least one conductive wire extending along the first direction, the conductive wire being electrically connected to the control circuit (200), and the control circuit (200) is also used to detect the resistance of the conductive wire, and determine whether the stretchable substrate (1) is stretched in the first direction and whether the second pixel (3) is stretched to a target area size based on a change in the resistance value of the conductive wire. A display method for a display device, wherein the display device is the display device according to any one of claims 2 to 5, and the display method comprises: Acquire the state of the stretchable display panel, and determine whether the second pixel is stretched to a target area size; When the stretchable display panel is not stretched and is in a display state, and the second pixels are not stretched to a target area size, controlling the first pixels and the second pixels in two adjacent rows to use the same timing input drive voltage; When the stretchable display panel is stretched in the column direction and is in a display state, and the second pixels are stretched to a target area size, two adjacent rows of the first pixels and the second pixels are controlled to input driving voltages in a time-sequential manner. A display method for a display device, wherein the display device is the display device according to any one of claims 7 to 10, and the display method comprises: Acquire the state of the stretchable display panel, and determine whether the second pixel is stretched to a target area size; When the stretchable display panel is not stretched and is in a display state, and the second pixel is not stretched to a target area size, controlling the first pixel and the second pixel in the same row to use the same timing input drive voltage; When the stretchable display panel is stretched in the row direction and is in a display state, and the second pixel is stretched to a target area size, the first pixel and the second pixel in the same row are controlled to input a driving voltage in a time-sequential manner.