CN112785962B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN112785962B CN112785962B CN202110267430.XA CN202110267430A CN112785962B CN 112785962 B CN112785962 B CN 112785962B CN 202110267430 A CN202110267430 A CN 202110267430A CN 112785962 B CN112785962 B CN 112785962B
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- 238000000034 method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 230000001934 delay Effects 0.000 description 4
- 230000008602 contraction Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/2007—Display of intermediate tones
- G09G3/2074—Display of intermediate tones using sub-pixels
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3266—Details of drivers for scan electrodes
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention provides a display panel and a display device. The display panel includes: the pixel islands are arranged in the display area, pixel units are arranged on the pixel islands, and the pixel islands are arranged in rows and columns along the first direction and the second direction which are intersected; the driving circuit islands are provided with grid driving circuits for generating grid driving signals, the driving circuit islands are arranged in rows and columns along the first direction and the second direction which are intersected, and at least one part of the driving circuit islands are arranged in the display area; adjacent pixel islands or driving circuit islands are connected through island bridges, pixel units on each pixel island are electrically connected through inter-island connecting lines on the island bridges, gate driving circuits on each driving circuit island are electrically connected through inter-island connecting lines on the island bridges, and gate driving circuits on each driving circuit island are electrically connected with pixel units on adjacent pixel islands through inter-island connecting lines on the island bridges. According to the embodiment of the invention, the stretchable display device can realize a narrow frame.
Description
Technical Field
The invention belongs to the technical field of display, and particularly relates to a display panel and a display device.
Background
Stretchable display has been attracting much attention in recent years as a new display technology having a wide application prospect as a new generation. Stretchable display is based on deformable display devices made of soft materials, has the advantages of small size, portability, low power consumption and the like, and is increasingly and widely applied to various fields.
Disclosure of Invention
The embodiment of the invention provides a display panel and a display device, which can reduce the frames of the display panel and the display device.
In one aspect, an embodiment of the present invention provides a display panel having a display area and a non-display area, the display panel including:
the pixel islands are arranged in the display area, pixel units are arranged on the pixel islands, and the pixel islands are arranged in rows and columns along the first direction and the second direction which are intersected;
the driving circuit islands are provided with grid driving circuits for generating grid driving signals, the driving circuit islands are arranged in rows and columns along the first direction and the second direction which are intersected, and at least one part of the driving circuit islands are arranged in the display area;
adjacent pixel islands or driving circuit islands are connected through island bridges, pixel units on each pixel island are electrically connected through inter-island connecting lines on the island bridges, gate driving circuits on each driving circuit island are electrically connected through inter-island connecting lines on the island bridges, and gate driving circuits on each driving circuit island are electrically connected with pixel units on adjacent pixel islands through inter-island connecting lines on the island bridges.
In another aspect, an embodiment of the present invention provides a display apparatus, which includes a display panel provided in one aspect of the present invention.
According to the display panel and the display device provided by the embodiment of the invention, at least one part of the driving circuit islands are arranged in the display area, so that the number of circuit units in the non-display area is reduced, and the space required by the non-display area is saved, therefore, the frame of the display panel can be reduced, and the stretchable display device with a narrow frame is realized.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings that are needed to be used in the embodiments of the present invention will be briefly described, and it is possible for a person skilled in the art to obtain other drawings according to these drawings without inventive effort.
FIG. 1 is a schematic diagram of a stretchable display panel;
fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
FIG. 3 is a schematic layout of pixel islands and drive circuit islands of the display panel of FIG. 2;
FIG. 4 is a schematic diagram of electrical connections between pixel islands and scanning unit islands of the display panel of FIG. 3;
FIG. 5 is another schematic layout of pixel islands and drive circuit islands of the display panel of FIG. 2;
FIG. 6 is another schematic layout of pixel islands and drive circuit islands of the display panel of FIG. 2;
FIG. 7 is another schematic layout of pixel islands and drive circuit islands of the display panel of FIG. 2;
fig. 8 is a schematic structural diagram of a display device according to another embodiment of the present invention.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and the detailed embodiments. It should be understood that the particular embodiments described herein are meant to be illustrative of the invention only and not limiting. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by showing examples of the invention.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
Fig. 1 is a schematic structural diagram of a stretchable display panel.
As shown in fig. 1, a stretchable display panel 100 of the present invention includes a pixel island (PX) 10 and a driving circuit island (VSR) 20. Wherein the driving circuit islands (VSR) 20 are generally located at the periphery of the pixel islands (PX) 10, and the driving circuit islands (VSR) 20 are connected with the pixel islands (PX) 1 through island bridges 30. Because the driving circuit islands (VSR) 20 are generally located at the periphery of the pixel islands (PX) 10 in the current stretchable design, in actual stretching, the stress applied to the two sides is larger than that applied to the center, the driving circuit islands (VSR) 20 at the edges are easily broken during stretching, so that signal transmission is interrupted, and meanwhile, the frame of the stretchable display device is wider due to the existence of the driving circuit islands (VSR) 20, which is unfavorable for the design of a narrow frame.
In order to at least partially solve the above technical problems, embodiments of the present invention provide a display panel and a display device. The following first describes a display panel provided by an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present invention. As shown in fig. 2, a display panel 200 according to an embodiment of the present invention has a display area 201 and a non-display area 202. The display area 201 is used for setting structures such as pixels, and the non-display area 202 is used for setting peripheral circuit structures such as display control circuits. The non-display area 202 surrounds the display area 201.
As shown in fig. 2, a display panel 200 provided in an embodiment of the present invention includes a pixel island (PX) 10, a driving circuit island (VSR) 20, and an island bridge 30.
The pixel islands 10 are disposed in the display area 201, and the plurality of pixel islands 10 are arranged in rows and columns along the first direction X and the second direction Y that intersect. Pixel cells, such as OLED light emitting devices, may be formed on the pixel islands 10. Each pixel island 10 includes a plurality of sub-pixels, for example, a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B. The pixel island 10 is generally rectangular or square in shape in this embodiment, although other shapes such as circular, elliptical, other polygons, etc. are possible in other embodiments.
The plurality of driving circuit islands 20 are arranged in rows and columns along the intersecting first direction X and second direction Y. The driving circuit island 20 is provided thereon with a gate driving circuit for generating a gate driving signal, for example, a gate scanning signal or a light emission control signal. The gate driving circuit on the driving circuit island 20 may be a gate driving circuit commonly used in the art or a gate driving circuit developed in the future, which is not limited by the present invention.
Adjacent pixel islands 10 or driving circuit islands 20 are connected through island bridges 30, pixel units on each pixel island 10 are electrically connected through inter-island connection lines located on the island bridges 30, gate driving circuits on each driving circuit island 20 are electrically connected through inter-island connection lines located on the island bridges 30, and gate driving circuits on each driving circuit island 20 are electrically connected with pixel units on adjacent pixel islands 10 through inter-island connection lines located on the island bridges 30. The island bridge 30 may be disposed on the elastic material so that adjacent pixel islands 10 may be close to or far away from each other, thereby realizing the expansion and contraction of the display substrate and the display panel. For example, the island 30 may be gradually unfolded and elongated from a bent state, thereby providing an additional trace length, and thus enabling the display panel 200 to realize a planar stretching display or a curved stretching display.
In the embodiment of the present invention, at least a part of the driving circuit islands 20 are disposed in the display area 201, so that by disposing at least a part of the driving circuit islands 20 in the display area 201, the number of the circuit islands 20 in the non-display area 202 is reduced, and the space required in the non-display area 202 is saved, so that the frame of the display panel 200 can be reduced, and a stretchable display device with a narrow frame can be realized.
As shown in fig. 2, in some embodiments of the present invention, the driving circuit islands 20 are all disposed in the display area 201. Thus, since the driving circuit islands 20 are all disposed in the display area 201, the non-display area 202 will not be provided with the driving circuit islands 20, which greatly reduces the space required by the non-display area 202, and can reduce the frame of the display panel 200, thereby realizing a stretchable display device with a narrow frame. In addition, since the driving circuit islands 20 are all disposed in the display area 201, stress applied to the driving circuit islands is small when stretching is performed with respect to the driving circuit islands disposed at the edge positions in the stretching direction, and breakage due to stretching is not easily caused, thereby improving the service life and reliability of the display panel.
As shown in fig. 2, in some embodiments of the present invention, each driving circuit island 20 is located in a space between adjacent pixel islands 10, so that the space between the pixel islands can be fully utilized, and the space occupied by the driving circuit islands 20 can be reduced. In this context, the gaps between adjacent pixel islands 10 refer to the hollowed-out regions between adjacent pixel islands 10. By the hole digging region between the adjacent pixel islands 10 of the driving circuit islands 20, there is no need to additionally increase the space in the display area 201 to arrange the driving circuit islands 20.
It will be appreciated that the pixel cells are island-like due to the stretchable display. And in order to facilitate stretching of the larger gaps between the pixel islands, the driving circuit islands 20 are disposed in the gaps between the pixel islands 10, so that the display panel can realize a narrow frame without substantially changing the pixel density (PPI), and the risk that the stretchable display panel easily breaks the driving circuit to the stretch break is avoided. Further, in the embodiment of the present invention, in order to arrange the driving circuit islands 20 in the gaps between the pixel islands 10, the driving circuit islands 20 are split into the scanning unit islands (Scan) and the light emitting unit islands (Emit), so that the area of the driving circuit islands 20 can be reduced, thereby being more conveniently arranged in the gaps between the adjacent pixel islands 10. The arrangement of the driving circuit islands 20 in the display area 201 is described below with reference to fig. 3 to 6.
Fig. 3 is a schematic layout of pixel islands and driving circuit islands of the display panel of fig. 2.
As shown in fig. 3, the driving circuit island 30 includes a scanning unit island 21 and a light emitting unit island 22. A gate scanning circuit is provided on the scanning unit island 21 for generating a scanning signal to realize scanning control of the pixel unit on the pixel island 10. The light emitting unit island 22 is provided with a light emitting circuit for generating a light emission control signal to realize light emission control of the pixel unit on the pixel island 10. The gate scan circuit and the light emitting circuit may have a circuit structure commonly used in the art, and are not particularly limited herein.
As shown in fig. 3, in some embodiments of the present invention, one group of scanning unit islands 21 and two groups of light emitting unit islands 22 are disposed in the display area 201. The set of scanning unit islands 21 are arranged in the second direction Y, and each scanning unit island 21 is disposed in a gap between adjacent pixel islands 10. Each group of light emitting cell islands 22 is arranged in the second direction Y, and each light emitting cell island 22 is disposed in a gap between adjacent pixel islands 10. Also, since the scanning unit islands 21 and the light emitting unit islands 22 are reduced in area with respect to the driving circuit islands 20 including the gate scanning circuits and the light emitting circuits, they can be conveniently disposed in the gaps between the adjacent pixel islands 10.
As shown in fig. 3, in some embodiments of the present invention, the scanning unit islands 21 are located on the symmetry axis of the display area 201, and the pixel islands 10 are symmetrically distributed with respect to the symmetry axis. Herein, the symmetrical distribution of the pixel islands 10 with respect to the symmetry axis refers to symmetrical arrangement of the number and positions of the pixel islands 10 on both sides of the symmetry axis. As shown in fig. 3 for example, three columns of pixel islands 10 are respectively arranged on both sides of the symmetry axis (i.e. the column in which the scanning unit islands 21 are located), and the number of pixel islands 10 in each column is the same. By disposing the scanning unit islands 21 on the symmetry axis of the display area 201, the time for the scanning signals generated by the scanning unit islands 21 to arrive at both sides is substantially uniform (i.e., the delays of the scanning signals to the pixel islands 10 at both sides of the scanning unit islands 21 are substantially uniform), so that the uniformity of the display of each pixel unit can be improved. And thus it is not necessary to provide two columns of driving circuit islands in order to reduce the difference in delay of signals reaching each pixel island since the driving circuit islands are provided at the periphery of the pixel islands as shown in fig. 1.
As shown in fig. 3, in some embodiments of the present invention, light emitting cell islands 22 arranged in the same row are disposed at both sides of a scanning cell island 21 along a first direction X. Illustratively, in some embodiments of the present invention, one scanning unit island 21 and two light-emitting unit islands 22 are disposed per row along the first direction X, with the two light-emitting units 22 disposed on either side of the scanning unit island 21.
As shown in fig. 3, in some embodiments of the present invention, the light emitting cell islands 22 arranged in the same row are symmetrically distributed with respect to the scanning cell islands 21 arranged in the same row along the first direction. In this way, since the light emitting unit islands 22 arranged in the same row are symmetrically distributed with respect to the scanning unit islands 21 arranged in the same row, the delay of the light emission control signal generated by each light emitting unit island 22 to reach the corresponding pixel island 10 is substantially the same for the pixel islands 10 on both sides of the scanning unit islands 21. In other words, the delay of the light emission control signal generated from the light emitting unit island 22 on the left side of the scanning unit island 21 to reach the left side pixel island 10 is substantially the same as the delay of the light emission control signal generated from the light emitting unit island 22 on the right side of the scanning unit island 21 to reach the right side corresponding pixel island 10. Thus, since the delays in receiving the light emission control signals by the corresponding pixel islands 10 are substantially the same, the uniformity of display of the display panel 200 is improved.
As shown in fig. 3, in some embodiments of the present invention, a plurality of pixel islands 10 arranged in the same row are electrically connected to at least one scanning unit island 21, and a plurality of pixel islands 10 arranged in the same row are electrically connected to at least one light emitting unit island 22 along a first direction X. Illustratively, as shown in fig. 3, each row of pixel islands 10 is electrically connected to two scanning cell islands 21 through an island bridge (second island bridge 32). Each row of pixel islands 10 is electrically connected to two light emitting cell islands 22 through island bridges (second island bridges 32). It should be appreciated that in other embodiments, a plurality of pixel islands 10 arranged in a row may be electrically connected to one scanning cell island 21, or more scanning cell islands 21. A plurality of pixel islands 10 arranged in the same row may also be electrically connected to one light emitting cell island 22, or a plurality of light emitting cell islands 22 may be electrically connected. The number of scanning unit islands 21 and light-emitting unit islands 22 to which each row of pixel islands 10 are connected depends on the manner in which the scanning circuit and light-emitting circuit are connected to the pixel cells.
As shown in fig. 3, in some embodiments of the present invention, the pixel islands 10 of the same row are driven by the same scanning unit island 21 along the first direction X. Illustratively, as shown in fig. 3, each row of pixel islands 10 is driven by a scanning cell island 21 to which the row of pixel islands 10 is connected.
As shown in fig. 3, in some embodiments of the present invention, the pixel islands 10 of the same row are divided into two groups along the first direction X, and each group of pixel islands 10 is driven by the same light emitting cell island 22. Illustratively, as shown in fig. 3, the pixel islands 10 are divided into two groups for each row with the symmetry axis of the scanning unit islands 21, and the two groups of pixel islands 10 are symmetrically distributed. Each group of pixel islands 10 is driven by a light emitting cell island 22 to which each group of pixel islands 10 is connected.
It should be understood that in this context, the driving of the pixel islands 10 of the same row by the same scanning unit island 21 means that the pixel islands 10 of the same row are provided with scanning signals by the same scanning unit island 21, which does not mean that the pixel islands 10 of the same row can be driven by only one scanning unit island 21. The pixel islands 10 of the same row are divided into two groups, and each group of pixel islands 10 is driven by the same light emitting unit island 22, which means that each group of pixel islands 10 is provided with a light emitting control signal by the same light emitting unit island 22, which does not mean that each group of pixel islands 10 can be driven by only the same light emitting unit island 22. It should be appreciated that each row of pixel islands 10 requires a gate scan circuit drive for that row. Taking fig. 3 as an example, the gate scanning circuit of each row is composed of one scanning unit island 21 and two light emitting unit islands 22 corresponding to the row, which commonly drive the row of pixel islands 10. It should be understood that the output of the gate scan circuit for each row includes a scan signal and a light emission control signal, which are cascade signals. In contrast, each stage of scanning signals can only correspond to one row of pixels, each stage of light-emitting control signals can correspond to 1-2 rows of pixels, and the scanning unit islands 21 and the light-emitting unit islands 22 can be respectively inserted into gaps among the pixel islands 10 according to the signal distribution mode. Fig. 3 is only one exemplary arrangement of the scanning unit islands 21 and the light emitting unit islands 22, and other exemplary arrangements may be referred to later in conjunction with fig. 5 to 7.
As shown in fig. 3, in some embodiments of the present invention, island bridge 30 includes a first island bridge 31 and a second island bridge 32. The first island 31 is for connecting adjacent pixel islands 10. The second island 32 is used to connect the adjacent pixel island 10 and the driving circuit island 20 (i.e., the scanning unit island 21 or the light emitting unit island 22). In other words, the pixel islands 10 not connected to the driving circuit islands 20 are connected to each other through the first island bridge 31. The pixel islands 10 connected to the driving circuit islands 20 are connected to the driving circuit islands 20 and adjacent driving islands 20 by second island bridges 32. It should be understood that the first island bridge 31 and the second island bridge 32 not only achieve a mechanical connection between adjacent pixel islands 10, or between adjacent pixel islands 10 and drive circuit islands 20, or between adjacent drive circuit islands 20, but also an electrical connection between each other first. The first island 31 has formed therein a first signal line for transmitting a scan signal, a second signal line for transmitting a light emission control signal, and a third signal line for transmitting a data signal. The second island 32 has formed therein a first signal line for transmitting a scan signal, a second signal line for transmitting a light emission control signal, a third signal line for transmitting a data signal, and a cascade signal line for connecting adjacent ones of the light emitting unit islands or the scanning unit islands. In other words, the scan signal generated by the scan cell island 21 or the light emission control signal generated by the light emitting cell island 22 is transmitted to the corresponding pixel island 10 through the first signal line or the second signal line. The data signal is transmitted to the corresponding pixel island 10 through the third signal line. A cascade signal between adjacent scanning unit islands 21 or between adjacent light emitting unit islands 22 is transmitted through a cascade signal line.
As shown in fig. 3, in the embodiment of the present invention, the first island 31 is S-shaped, and the island 31 is configured as an S-shaped curve, so that the island can be gradually unfolded and stretched from a curved state, thereby providing an additional trace length, and further enabling the display panel 200 to realize a planar stretching display or a curved stretching display. Illustratively, as shown in fig. 3, in the embodiment of the present invention, the second island 32 is in a cross shape, and each branch of the cross is in a curve shape, so that an additional trace length may be provided, and thus the display panel 200 may implement a planar stretching display or a curved stretching display. Of course, in other embodiments, the first island 31 and the second island 32 may take other suitable shapes.
Fig. 4 is a schematic diagram of electrical connection between a pixel island and a scanning unit island of the display panel shown in fig. 3.
As shown in fig. 4, in some embodiments of the present invention, the scanning unit island 21 and the pixel island 10 are electrically connected through a first signal line 41. The scanning signal generated by the scanning unit island 21 is transmitted to the corresponding pixel island 10 through the first signal line 41. While cascade signals are transmitted between adjacent scanning unit islands 21 through cascade signal lines 42. Illustratively, in some embodiments of the present invention, each pixel island 10 receives scan signals transmitted by two scan cell islands 21 connected thereto, by which scanning of pixel cells on the connected pixel island 10 is accomplished.
Fig. 5 is another schematic layout of pixel islands and driving circuit islands of the display panel shown in fig. 2.
As shown in fig. 5, in some embodiments of the present invention, similar to that shown in fig. 3, the scanning unit islands 21 are located on the symmetry axis of the display area 201, and the pixel islands 10 are symmetrically distributed with respect to the symmetry axis. In the embodiment shown in fig. 5, the light emitting unit islands 22 are also disposed on both sides of the scanning unit island 21, and are symmetrically distributed with respect to the symmetry axis of the scanning unit island 21. Unlike the embodiment shown in fig. 3, in the embodiment shown in fig. 5, the pixel islands 10 located in the same row are divided into two groups in the first direction X, and two adjacent groups of pixel islands 10 are driven by the same light emitting cell island 22 in the second direction Y. As shown in fig. 5, the pixel islands 10 of each row are divided into two groups with the symmetry axis of the scanning unit islands 21, and the two groups of pixel islands 10 are symmetrically distributed. Each group of pixel islands 10 is driven by a light emitting cell island 22 to which each group of pixel islands 10 is connected. And the pixel islands 10 of the upper and lower adjacent two groups are driven by the same light emitting cell island 22 connected. In other words, in the present embodiment, each light emitting cell island 22 supplies the light emission control signals to the pixels to 10 of the adjacent two groups. Alternatively, in the present embodiment, the gate scan circuits corresponding to the pixels to 10 of two adjacent rows share the light emitting unit island 22.
Fig. 6 is another schematic layout of pixel islands and driving circuit islands of the display panel shown in fig. 2.
As shown in fig. 6, in some embodiments of the present invention, the light emitting cell islands 22 are located on the symmetry axis of the display area 201, and the pixel islands 10 are symmetrically distributed with respect to the symmetry axis. Herein, the symmetrical distribution of the pixel islands 10 with respect to the symmetry axis refers to symmetrical arrangement of the number and positions of the pixel islands 10 on both sides of the symmetry axis. As shown in fig. 6, three columns of pixel islands 10 are respectively arranged on both sides of the symmetry axis (i.e., the column in which the light emitting unit islands 22 are located), and the number of pixel islands 10 in each column is the same. By disposing the light emitting cell islands 22 on the symmetry axis of the display region 201, the time for the light emitting control signals generated by the light emitting cell islands 22 to reach both sides is substantially uniform (i.e., the delays of the light emitting control signals to the pixel islands 10 on both sides of the light emitting cell islands 22 are substantially uniform), so that the uniformity of the display of each pixel cell can be improved. And thus it is not necessary to provide two columns of driving circuit islands in order to reduce the difference in delay of signals reaching each pixel island since the driving circuit islands are provided at the periphery of the pixel islands as shown in fig. 1.
As shown in fig. 6, in some embodiments of the present invention, scanning unit islands 21 arranged in parallel in a first direction X are disposed on both sides of a light emitting unit island 22. Illustratively, in some embodiments of the present invention, one light emitting cell island 22 and two scanning cell islands 21 are disposed per row along the first direction X, the two scanning cell islands 21 being disposed on both sides of the light emitting cell 22, respectively. By providing the scanning unit islands 21 on both sides of the light emitting unit 22, the scanning unit islands 21 corresponding to the pixel islands 10 on both sides of the light emitting unit 22 can be driven, thereby reducing the delay difference of receiving scanning signals by the pixel islands 10 and improving the display uniformity. As shown in fig. 6, in some embodiments of the present invention, the pixel islands 10 of the same row are divided into two groups along the first direction X, and each group of pixel islands 10 is driven by the same scanning unit island 21. In other words, each group of pixel islands 10 is driven by the scanning unit island 21 to which the group of pixel islands 10 is connected.
As shown in fig. 6, in some embodiments of the present invention, the scanning unit islands 21 disposed in the same row are symmetrically distributed with respect to the light emitting unit islands 22 disposed in the same row along the first direction X. In this way, the scanning unit islands 21 arranged in the same row are symmetrically distributed with respect to the light emitting unit islands 22 arranged in the same row, and thus the delay of the scanning signal generated by each scanning unit island 21 to reach the corresponding pixel island 10 is substantially the same for the pixel islands 10 on both sides of the light emitting unit islands 22. In other words, the delay of the scanning signal generated by the scanning unit island 21 on the left side of the light emitting unit island 22 to reach the left pixel island 10 is substantially the same as the delay of the scanning signal generated by the scanning unit island 21 on the right side of the light emitting unit island 22 to reach the right corresponding pixel island 10. This results in improved uniformity of display of the display panel 200, since the delays in receiving the scanning signals by the corresponding pixel islands 10 are substantially the same.
It should be appreciated that in the embodiment shown in fig. 6, the scan signals provided by the two sets of scan cell islands 21 may be the same or different.
As shown in fig. 6, in some embodiments of the present invention, the pixel islands 10 of the same row are driven by the same light emitting cell island 22 along the first direction X. Illustratively, as shown in fig. 6, each row of pixel islands 10 is driven by the light emitting cell islands 22 to which the row of pixel islands 10 are connected.
As shown in fig. 6, in some embodiments of the present invention, the pixel islands 10 of the same row are divided into two groups along the first direction X, and each group of pixel islands 10 is driven by the same scanning unit island 21. That is, each group of pixel islands 10 is driven by the scanning unit island 21 to which the group of pixel islands 10 is connected.
It should be understood that where each row of pixel islands 10 is driven by a light emitting cell island 22 connected to that row of pixel islands 10 means that each row of pixel islands 10 is provided with a light emission control signal by the light emitting cell island 22 connected to that row of pixel islands 10. Each group of pixel islands 10 is driven by a scanning cell island 21 to which the group of pixel islands 10 is connected to provide a scanning signal. That is, in the embodiment of the present invention, the gate scanning circuit corresponding to each row of the pixel islands 10 includes two scanning unit islands 21 and one light emitting unit island 22. Each row of pixel islands 10 is driven by a gate scanning circuit corresponding to the row of pixel islands 10.
Fig. 7 is another schematic layout of pixel islands and driving circuit islands of the display panel shown in fig. 2.
As shown in fig. 7, in some embodiments of the present invention, the light emitting cell islands 22 are located on the symmetry axis of the display area 201, and the pixel islands 10 are symmetrically distributed with respect to the symmetry axis, similar to that shown in fig. 6. In the embodiment shown in fig. 7, the scanning unit islands 21 are also disposed on both sides of the light emitting unit islands 22, and are symmetrically distributed with respect to the symmetry axis where the light emitting unit islands 22 are located. Unlike the embodiment shown in fig. 6, in fig. 7, the pixel islands 10 of two adjacent rows are driven by the same light emitting cell island 22 along the first direction X. In other words, the light emitting unit islands 22 are arranged interlaced in the second direction Y. Each light emitting cell island 22 drives two adjacent rows of pixel islands 10 connected thereto. In other words, in the present embodiment, each light emitting cell island 22 provides a light emission control signal for the pixels to 10 of the adjacent two rows. Alternatively, in the present embodiment, the gate scan circuits corresponding to the pixels to 10 of two adjacent rows share the light emitting unit island 22.
Referring to fig. 3 and 5 to 7 again, in some embodiments of the present invention, the scanning unit islands 21 and the light emitting unit islands 22 cannot transmit signals to the pixel islands 10 located in the first and second rows, so the pixel islands located in the first and second rows are used as dummy pixel islands, which are not used for display. And because of the existence of the virtual pixel island, the external edge is stressed by the virtual pixel island instead of the driving circuit island during stretching, so that the driving circuit island is further prevented from being damaged during stretching.
It should be appreciated that although in some embodiments of the present invention, only the first and second rows of pixel islands are used as virtual pixel islands, in other embodiments of the present invention, pixel islands at the edges of the left and right columns may be used as virtual pixel islands as desired.
The embodiment of the invention also provides a display device. Fig. 8 is a schematic structural diagram of a display device according to an embodiment of the present invention. Referring to fig. 8, the display device includes any one of the display panels 200 provided in the embodiment of the present invention. The display device can be a mobile phone, a computer, intelligent wearable equipment and the like.
According to the display panel and the display device provided by the embodiment of the invention, at least a part of the driving circuit islands are arranged in the display area, so that the number of circuit units in the non-display area is reduced, and the space required by the non-display area is saved, therefore, the frame of the display panel can be reduced, and the stretchable display device with a narrow frame is realized.
In the foregoing, only the specific embodiments of the present invention are described, and it will be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the systems, modules and units described above may refer to the corresponding processes in the foregoing method embodiments, which are not repeated herein. It should be understood that the scope of the present invention is not limited thereto, and any equivalent modifications or substitutions can be easily made by those skilled in the art within the technical scope of the present invention, and they should be included in the scope of the present invention.
Claims (17)
1. A display panel having a display area and a non-display area, comprising:
the pixel islands are arranged in the display area, each pixel island is provided with a pixel unit, and a plurality of pixel islands are arranged in rows and columns along the first direction and the second direction which are intersected;
the driving circuit islands are provided with grid driving circuits for generating grid driving signals, the driving circuit islands are arranged in rows and columns along the first direction and the second direction which are intersected, and at least one part of the driving circuit islands are arranged in the display area;
the adjacent pixel islands or driving circuit islands are connected through island bridges, pixel units on each pixel island are electrically connected through island connecting lines positioned on the island bridges, gate driving circuits on each driving circuit island are electrically connected through island connecting lines positioned on the island bridges, and gate driving circuits on each driving circuit island are electrically connected with pixel units on the adjacent pixel islands through island connecting lines positioned on the island bridges.
2. The display panel of claim 1, wherein the drive circuit islands are each disposed in the display area.
3. The display panel of claim 2, wherein each of the driving circuit islands is located in a space between adjacent ones of the pixel islands.
4. A display panel according to any one of claims 1-3, wherein,
the driving circuit island comprises a scanning unit island and a light-emitting unit island, a grid scanning circuit is arranged on the scanning unit island and used for generating scanning signals, a light-emitting circuit is arranged on the light-emitting unit island and used for generating light-emitting control signals, a plurality of pixel islands arranged in the same row are electrically connected with at least one scanning unit island along a first direction, and a plurality of pixel islands arranged in the same row are electrically connected with at least one light-emitting unit island.
5. The display panel of claim 4, wherein the pixel islands of the same row are driven by the same scanning cell island in a first direction.
6. The display panel of claim 4, wherein the pixel islands of the same row are divided into two groups in a first direction, each group of the pixel islands being driven by the same scanning cell island.
7. The display panel of claim 4, wherein the pixel islands of the same row are driven by the same light emitting cell island in a first direction.
8. The display panel of claim 4, wherein in a first direction, the pixel islands of two adjacent rows are driven by the same light emitting cell island.
9. The display panel of claim 4, wherein the pixel islands of the same row are divided into two groups in a first direction, each group of the pixel islands being driven by the same light emitting cell island.
10. The display panel according to claim 4, wherein the pixel islands located in the same row are divided into two groups in the first direction, and two adjacent groups of the pixel islands are driven by the same light emitting unit island in the second direction.
11. The display panel of claim 5, wherein the scanning unit islands are located on an axis of symmetry of the display area and the pixel islands are symmetrically distributed with respect to the axis of symmetry.
12. The display panel of claim 11, wherein the light emitting cell islands arranged in a row are disposed on both sides of the scanning cell island in a first direction.
13. The display panel of claim 12, wherein the light emitting cell islands disposed in a row are symmetrically distributed with respect to the scanning cell islands disposed in a row along a first direction.
14. The display panel of claim 4, wherein the light emitting cell islands are located on an axis of symmetry of the display region and the pixel islands are symmetrically distributed with respect to the axis of symmetry.
15. The display panel of claim 14, wherein the scanning unit islands arranged in a row are disposed on both sides of the light emitting unit island in a first direction.
16. The display panel of claim 15, wherein the scanning unit islands disposed in a same row are symmetrically distributed with respect to the light emitting unit islands disposed in a same row along a first direction.
17. A display device, comprising: the display panel of any one of claims 1-16.
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| CN114842745B (en) * | 2022-04-02 | 2023-10-13 | Tcl华星光电技术有限公司 | Display assembly and display device |
| TWI810919B (en) * | 2022-04-28 | 2023-08-01 | 友達光電股份有限公司 | Stretchable pixel array substrate |
| CN114664245B (en) * | 2022-05-25 | 2022-11-15 | 惠科股份有限公司 | Driving substrate and display panel thereof |
| CN114927068B (en) * | 2022-06-30 | 2023-11-21 | 合肥维信诺科技有限公司 | Stretchable display panel, display driving method thereof and display device |
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