CN112785962A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN112785962A CN112785962A CN202110267430.XA CN202110267430A CN112785962A CN 112785962 A CN112785962 A CN 112785962A CN 202110267430 A CN202110267430 A CN 202110267430A CN 112785962 A CN112785962 A CN 112785962A
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- 238000000034 method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 230000001934 delay Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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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
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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
- G09G3/22—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 island is arranged in the display area, the pixel island is provided with pixel units, and the pixel islands are arranged in a row and column mode along a first direction and a second direction which are intersected; the driving circuit islands are provided with gate driving circuits and used for generating gate driving signals, the driving circuit islands are arranged in a row and column mode along a first direction and a 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 the driving circuit islands are connected through island bridges, the pixel units on the pixel islands are electrically connected through the inter-island connecting lines on the island bridges, the gate driving circuits of the driving circuit islands are electrically connected through the inter-island connecting lines on the island bridges, and the gate driving circuits on the driving circuit islands are electrically connected with the pixel units on the adjacent pixel islands through the 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
The stretchable display has recently received much attention in the display field as a new generation of a novel display technology having a wide application prospect. Stretchable display flexible display devices based on flexible materials have advantages of small size, portability, low power consumption, etc., and are increasingly used in various fields.
Disclosure of Invention
Embodiments of the present invention provide a display panel and a display device, which can reduce the frame size 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 island is arranged in the display area, the pixel island is provided with pixel units, and the pixel islands are arranged in a row and column mode along a first direction and a second direction which are intersected;
the driving circuit islands are provided with gate driving circuits and used for generating gate driving signals, the driving circuit islands are arranged in a row and column mode along a first direction and a 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 the driving circuit islands are connected through island bridges, the pixel units on the pixel islands are electrically connected through the inter-island connecting wires positioned on the island bridges, the gate driving circuits on the driving circuit islands are electrically connected through the inter-island connecting wires positioned on the island bridges, and the gate driving circuits on the driving circuit islands are electrically connected with the pixel units on the adjacent pixel islands through the inter-island connecting wires positioned on the island bridges.
In another aspect, an embodiment of the present invention provides a display device, which includes the display panel provided in an 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 can be realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
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 shown in fig. 2;
fig. 4 is a schematic diagram of electrical connections between pixel islands and scan cell islands of the display panel shown in fig. 3;
fig. 5 is another schematic layout of pixel islands and driver circuit islands of the display panel shown in fig. 2;
fig. 6 is another schematic layout of pixel islands and driver circuit islands of the display panel shown in fig. 2;
fig. 7 is another schematic layout of pixel islands and driver circuit islands of the display panel shown in 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 objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are 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 present invention by illustrating examples of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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 identical 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 the island bridges 30. Since the driving circuit islands (VSR)20 are generally located at the periphery of the pixel islands (PX)10 in the current stretchable design, when the pixel islands are stretched actually, 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 when the pixel islands are stretched, which causes signal transmission interruption, and meanwhile, the existence of the driving circuit islands (VSR)20 also makes the frame of the stretchable display device wider, which is not favorable for the narrow frame design.
In order to at least partially solve the above technical problem, embodiments of the present invention provide a display panel and a display device. The following first describes a display panel provided in 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 a structure of pixels and the like, and the non-display area 202 is used for setting a peripheral circuit structure of a display control circuit and the like. The non-display area 202 surrounds the display area 201.
As shown in fig. 2, the display panel 200 according to the 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 a first direction X and a second direction Y intersecting each other. 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 substantially rectangular or square in this embodiment, but may be other shapes in other embodiments, such as circular, oval, other polygonal shapes, etc.
The plurality of drive circuit islands 20 are arranged in rows and columns along intersecting first and second directions X and 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 in the present invention.
The adjacent pixel islands 10 or the driving circuit islands 20 are connected by an island bridge 30, the pixel units on each pixel island 10 are electrically connected by an inter-island connecting line on the island bridge 30, the gate driving circuits on each driving circuit island 20 are electrically connected by an inter-island connecting line on the island bridge 30, and the gate driving circuits on each driving circuit island 20 are electrically connected with the pixel units on the adjacent pixel islands 10 by an inter-island connecting line on the island bridge 30. The island bridges 30 may be disposed on the elastic material, so that adjacent pixel islands 10 may be close to or far from each other, thereby achieving the expansion and contraction of the display substrate and the display panel. For example, the island bridges 30 may be gradually unfolded and elongated from a curved state, so as to provide an extra trace length, thereby enabling the display panel 200 to implement a flat stretching display or a curved stretching display.
In the embodiment of the present invention, at least a portion of the driving circuit islands 20 is disposed in the display area 201, so that by disposing at least a portion 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 by the non-display area 202 is saved, thereby reducing the bezel of the display panel 200 and realizing a stretchable display device with a narrow bezel.
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. In this way, since the driving circuit islands 20 are all disposed in the display area 201, the non-display area 202 is not disposed 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. Moreover, since the driving circuit islands 20 are all disposed in the display area 201, the driving circuit islands are relatively disposed at the edge position in the stretching direction during stretching, and are subjected to a relatively small stress, and are not easily broken due to stretching, 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 the gap between adjacent pixel islands 10, so that the gap between the pixel islands can be fully utilized, and the space occupied by the driving circuit islands 20 can be reduced. Herein, the space between adjacent pixel islands 10 refers to a dug region between the adjacent pixel islands 10. The driving circuit islands 20 are arranged without an additional space in the display area 201 by digging up the hole areas between the adjacent pixel islands 10 of the driving circuit islands 20.
It should be appreciated that the pixel cells are island-like due to the stretchable display. And large gaps are designed to facilitate stretching of the pixel islands, so that the driving circuit islands 20 are disposed in the gaps between the pixel islands 10, and the display panel can realize a narrow frame without changing the pixel density (Pixels Per inc, PPI) basically, and meanwhile, the risk that the stretchable display panel easily breaks the driving circuit due to pulling is avoided. Further, in the embodiment of the present invention, in order to arrange the driving circuit islands 20 in the spaces between the pixel islands 10, the driving circuit islands 20 are divided into the Scan cell islands (Scan) and the light emitting cell islands (Emit), so that the area of the driving circuit islands 20 can be reduced, thereby being more conveniently arranged in the spaces 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 shown in fig. 2.
As shown in fig. 3, the driving circuit island 30 includes a scan cell island 21 and a light emitting cell island 22. A gate scanning circuit is disposed on the scanning unit island 21 for generating a scanning signal to realize scanning control of the pixel units on the pixel island 10. The light emitting unit island 22 is provided with a light emitting circuit for generating a light emitting control signal to realize light emitting control of the pixel unit on the pixel island 10. The gate scanning 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 set of scan cell islands 21 and two sets of light emitting cell islands 22 are disposed in the display area 201. The group of scan cell islands 21 is arranged in the second direction Y, and each scan cell island 21 is disposed in a gap between adjacent pixel islands 10. Each group of the 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 scan cell island 21 and the light emitting cell island 22 are reduced in area with respect to the driving circuit island 20 including the gate scan circuit and the light emitting circuit, it can be conveniently disposed in the gap between the adjacent pixel islands 10.
As shown in fig. 3, in some embodiments of the present invention, the scan cell islands 21 are located on a symmetry axis of the display area 201, and the pixel islands 10 are symmetrically distributed with respect to the symmetry axis. Herein, the pixel islands 10 are symmetrically distributed with respect to the symmetry axis, which means that the number and positions of the pixel islands 10 on both sides of the symmetry axis are symmetrically disposed. Taking fig. 3 as an example, three columns of pixel islands 10 are respectively disposed on two sides of the symmetry axis (i.e., the column where the scan cell island 21 is located), and the number of pixel islands 10 in each column is the same. By arranging the scanning unit islands 21 on the symmetry axis of the display area 201, the arrival time of the scanning signals generated by the scanning unit islands 21 at both sides is substantially the same (i.e., the delay of the scanning signals to the pixel islands 10 at both sides of the scanning unit islands 21 is substantially the same), so that the uniformity of 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 delay difference of signals reaching the respective pixel islands as shown in fig. 1 because the driving circuit islands are disposed at the periphery of the pixel islands.
As shown in fig. 3, in some embodiments of the present invention, the light emitting cell islands 22 disposed in the same row are disposed at both sides of the scan cell island 21 in the first direction X. Exemplarily, in some embodiments of the present invention, one scan cell island 21 and two light emitting cell islands 22 are disposed per row along the first direction X, and the two light emitting cells 22 are disposed at both sides of the scan cell island 21, respectively.
As shown in fig. 3, in some embodiments of the present invention, along the first direction, 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. In this way, since 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, the delay of the light emitting control signal generated by each light emitting cell island 22 reaching the corresponding pixel island 10 is substantially the same for the pixel islands 10 on both sides of the scanning cell island 21. In other words, the delay of the light emission control signal generated from the light emitting cell island 22 on the left side of the scan cell island 21 reaching the pixel island 10 on the left side is substantially the same as the delay of the light emission control signal generated from the light emitting cell island 22 on the right side of the scan cell island 21 reaching the corresponding pixel island 10 on the right side. Thus, the display uniformity of the display panel 200 is improved because the delays of the light-emitting control signals received by the corresponding pixel islands 10 are substantially the same.
As shown in fig. 3, in some embodiments of the present invention, along the first direction X, a plurality of pixel islands 10 arranged in the same row are electrically connected to at least one scan cell island 21, and a plurality of pixel islands 10 arranged in the same row are electrically connected to at least one light emitting cell island 22. Illustratively, as shown in fig. 3, each row of pixel islands 10 is electrically connected to two scan cell islands 21 by an island bridge (second island bridge 32). Each row of pixel islands 10 is electrically connected to two light emitting cell islands 22 through an island bridge (second island bridge 32). It should be understood that in other embodiments, a plurality of pixel islands 10 arranged in the same row may be electrically connected to one scan cell island 21, or more scan 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 more light emitting cell islands 22 may be electrically connected. The number of scanning unit islands 21 and light emitting unit islands 22 connected per row of pixel islands 10 depends on the manner in which the scanning circuit and the 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 scan cell island 21 along the first direction X. Illustratively, as shown in fig. 3, each row of pixel islands 10 is driven by a scan 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 in 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 in each row are divided into two groups by the symmetry axis of the scanning unit island 21, and the two groups of pixel islands 10 are symmetrically distributed. Each group of pixel islands 10 is driven by the light emitting cell islands 22 to which the respective group of pixel islands 10 is connected.
It should be understood that, in this document, the pixel islands 10 of the same row being driven by the same scan cell island 21 means that the pixel islands 10 of the same row are supplied with scan signals by the same scan cell island 21, which does not mean that the pixel islands 10 of the same row can be driven by only one scan cell island 21. The pixel islands 10 in 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 light-emitting control signals 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 will 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 for each row is composed of one scanning cell island 21 and two light emitting cell islands 22 corresponding to the row, and commonly drives the pixel islands 10 of the row. It should be understood that the output of the gate scanning circuit of each row includes a scanning signal and a light emission control signal, and the scanning and light emission control signals are cascade signals. Different from the above, each level of scanning signal can only correspond to one row of pixels, each level of light-emitting control signal can correspond to 1-2 rows of pixels, and the scanning unit island 21 and the light-emitting unit island 22 can be respectively inserted into the gap between the pixel islands 10 according to the signal distribution mode. Fig. 3 is only an exemplary arrangement of one of the scanning unit islands 21 and the light emitting unit islands 22, and other exemplary arrangements may be referred to as described later in conjunction with fig. 5 to 7.
As shown in fig. 3, in some embodiments of the present invention, the island bridge 30 includes a first island bridge 31 and a second island bridge 32. The first island bridge 31 is used to connect adjacent pixel islands 10. The second island bridge 32 is used to connect adjacent pixel islands 10 and driving circuit islands 20 (i.e., scan cell islands 21 or light emitting cell islands 22). In other words, the pixel islands 10 not connected to the driving circuit island 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 the adjacent driving islands 20 are connected to each other by the second island bridges 32. It should be understood that the first island bridge 31 and the second island bridge 32 not only achieve 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 electrical connection between each other first. The first island bridge 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 bridge 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 cell islands or the scan cell 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. The cascade signal between the adjacent scan cell islands 21 or between the adjacent light emitting cell islands 22 is transmitted through the cascade signal line.
Exemplarily, as shown in fig. 3, in the embodiment of the present invention, the first island bridge 31 is S-shaped, and the island bridge 31 is configured as an S-shaped curve, so that it can be gradually unfolded and elongated from a bent state, thereby providing an extra trace length, and further enabling the display panel 200 to implement a flat stretching display or a curved stretching display. Exemplarily, as shown in fig. 3, in the embodiment of the present invention, the second island bridge 32 is in a cross shape, and each branch of the cross is in a curved shape, so that an additional trace length can be provided, and the display panel 200 can implement a flat stretching display or a curved stretching display. Of course, in other embodiments, the first island bridge 31 and the second island bridge 32 may take other suitable shapes.
Fig. 4 is a schematic diagram of electrical connections between pixel islands and scan cell islands of the display panel shown in fig. 3.
As shown in fig. 4, in some embodiments of the present invention, the scan cell island 21 and the pixel island 10 are electrically connected through a first signal line 41. The scan signal generated by the scan cell island 21 is transmitted to the corresponding pixel island 10 through the first signal line 41. And cascade signals are transmitted between adjacent scan cell islands 21 through cascade signal lines 42. Illustratively, in some embodiments of the present invention, each pixel island 10 receives the scan signals transmitted by two scan cell islands 21 connected thereto, and the scanning of the pixel cells on the connected pixel island 10 is realized by the two scan signals.
Fig. 5 is another schematic layout of pixel islands and driver 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 scan cell islands 21 are located on a 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 at two 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 along the first direction X are divided into two groups, and two adjacent groups of pixel islands 10 along the second direction Y are driven by the same light-emitting cell island 22. Illustratively, as shown in fig. 5, the pixel islands 10 in each row are divided into two groups by the symmetry axis of the scanning unit island 21, and the two groups of pixel islands 10 are symmetrically distributed. Each group of pixel islands 10 is driven by the light emitting cell islands 22 to which the respective group of pixel islands 10 is connected. And the pixel islands 10 of the two groups adjacent up and down are driven by the same connected light emitting cell island 22. In other words, in the present embodiment, each light-emitting cell island 22 supplies light-emission control signals to the pixels 10 of the adjacent two groups. In other words, in the present embodiment, the gate scan circuits corresponding to the pixels 10 in two adjacent rows share the light emitting unit island 22.
Fig. 6 is another schematic layout of pixel islands and driver 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 a symmetry axis of the display area 201, and the pixel islands 10 are symmetrically distributed with respect to the symmetry axis. Herein, the pixel islands 10 are symmetrically distributed with respect to the symmetry axis, which means that the number and positions of the pixel islands 10 on both sides of the symmetry axis are symmetrically disposed. Taking fig. 6 as an example, three columns of pixel islands 10 are respectively disposed on both sides of the symmetry axis (i.e., the column where the light-emitting cell island 22 is located), and the number of pixel islands 10 in each column is the same. By arranging the light-emitting cell islands 22 on the symmetry axis of the display region 201, the arrival times of the light-emission control signals generated by the light-emitting cell islands 22 at both sides are substantially uniform (i.e., the delays of the light-emission control signals to the pixel islands 10 at both sides of the light-emitting cell islands 22 are substantially uniform), so that the uniformity of 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 delay difference of signals reaching the respective pixel islands as shown in fig. 1 because the driving circuit islands are disposed at the periphery of the pixel islands.
As shown in fig. 6, in some embodiments of the present invention, the scan cell islands 21 disposed in the same row are disposed at both sides of the light emitting cell islands 22 in the first direction X. Illustratively, in some embodiments of the present invention, one light emitting cell island 22 and two scan cell islands 21 are disposed per row along the first direction X, and the two scan cell islands 21 are disposed at 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, so that the delay difference of the scanning signals received by the pixel islands 10 can be reduced, and the display uniformity can be improved. As shown in fig. 6, in some embodiments of the present invention, along the first direction X, the pixel islands 10 in the same row are divided into two groups, and each group of pixel islands 10 is driven by the same scan cell island 21. In other words, each group of pixel islands 10 is driven by the scan cell island 21 to which the group of pixel islands 10 is connected.
As shown in fig. 6, in some embodiments of the present invention, along the first direction X, the scan cell islands 21 arranged in the same row are symmetrically distributed with respect to the light emitting cell islands 22 arranged in the same row. 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 therefore, for the pixel islands 10 on both sides of the light emitting unit islands 22, the delay of the scanning signal generated by each scanning unit island 21 reaching the corresponding pixel island 10 is substantially the same. In other words, the delay of the scan signal generated by the scan cell island 21 on the left side of the light emitting cell island 22 reaching the left pixel island 10 is substantially the same as the delay of the scan signal generated by the scan cell island 21 on the right side of the light emitting cell island 22 reaching the right corresponding pixel island 10. Thus, the display uniformity of the display panel 200 is improved because the delays of the scan signals received by the corresponding pixel islands 10 are substantially the same.
It should be understood that in the embodiment shown in fig. 6, the scanning signals provided by the two groups of scanning unit 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 a light emitting cell island 22 to which the row of pixel islands 10 is connected.
As shown in fig. 6, in some embodiments of the present invention, along the first direction X, the pixel islands 10 in the same row are divided into two groups, and each group of pixel islands 10 is driven by the same scan cell island 21. That is, each group of pixel islands 10 is driven by the scan cell island 21 to which the group of pixel islands 10 is connected.
It should be understood that the driving of each row of pixel islands 10 by the light-emitting cell islands 22 to which the row of pixel islands 10 is connected herein means that each row of pixel islands 10 is supplied with a light-emitting control signal by the light-emitting cell islands 22 to which the row of pixel islands 10 is connected. Each group of pixel islands 10 is driven by the scan cell island 21 to which the group of pixel islands 10 is connected to supply a scan signal. That is, in the embodiment of the present invention, the gate scan circuit corresponding to each row of the pixel islands 10 includes two scan cell islands 21 and one light emitting cell 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 driver 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 a 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 at two sides of the light emitting unit island 22, and are symmetrically distributed with respect to the symmetry axis of the light emitting unit island 22. 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 in the first direction X. In other words, the light emitting cell islands 22 are arranged alternately 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 supplies the light-emission control signal to the pixels to 10 of two adjacent rows. In other words, in the present embodiment, the gate scan circuits corresponding to the pixels 10 in two adjacent rows share the light emitting unit island 22.
Referring again to fig. 3, 5 to 7, 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 positioned in the first and last two rows, so that the pixel islands in the first and last two rows are used as dummy pixel islands, which are not used for display. And because of the existence of the virtual pixel island, the virtual pixel island is stressed on the outer edge during stretching, but not the driving circuit island, so that the driving circuit island can be further prevented from being damaged during stretching.
It should be understood that although in some embodiments of the present invention only the first and last two 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 two 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 according to the embodiments of the present invention. The display device can be a mobile phone, a computer, an intelligent wearable device and the like.
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 can be realized.
As described above, only the specific embodiments of the present invention are provided, and it can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system, the module and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered within the scope of the present invention.
Claims (17)
1. A display panel having a display area and a non-display area, comprising:
the pixel island is arranged in the display area, a pixel unit is arranged on the pixel island, and the pixel islands are arranged in a row and column mode along a first direction and a second direction which are intersected;
the driving circuit islands are provided with gate driving circuits and used for generating gate driving signals, the driving circuit islands are arranged in a row-column mode along a first direction and a 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 the driving circuit islands are connected through an island bridge, the pixel units on the pixel islands are electrically connected through an inter-island connecting line positioned on the island bridge, the gate driving circuits on the driving circuit islands are electrically connected through an inter-island connecting line positioned on the island bridge, and the gate driving circuits on the driving circuit islands are electrically connected with the pixel units on the adjacent pixel islands through an inter-island connecting line positioned on the island bridge.
2. The display panel according to claim 1, wherein the driving circuit islands are each disposed in the display region.
3. The display panel according to claim 2, wherein each of the driving circuit islands is located in a space between adjacent ones of the pixel islands.
4. The display panel according to any one of claims 1 to 3,
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, 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 according to claim 4, wherein the pixel islands of a same row are driven by a same scan cell island in the first direction.
6. The display panel according to claim 4, wherein the pixel islands of the same row are divided into two groups along the first direction, and each group of the pixel islands is driven by the same scan cell island.
7. The display panel according to claim 4, wherein the pixel islands of the same row are driven by the same light emitting cell island in the first direction.
8. The display panel according to claim 4, wherein the pixel islands of two adjacent rows are driven by the same light emitting cell island in the first direction.
9. The display panel according to claim 4, wherein the pixel islands in the same row are divided into two groups in the first direction, and each group of the pixel islands is driven by the same one of the light emitting cell islands.
10. The display panel according to claim 4, wherein the pixel islands in a same row in the first direction are divided into two groups, and two adjacent groups of the pixel islands in the second direction are driven by a same one of the light emitting cell islands.
11. The display panel according to claim 5, wherein the scanning unit islands are located on a symmetry axis of the display region, and the pixel islands are symmetrically distributed with respect to the symmetry axis.
12. The display panel according to claim 11, wherein the light emitting cell islands arranged in the same row are arranged on both sides of the scanning cell island in the first direction.
13. The display panel according to claim 12, wherein the light emitting unit islands arranged in the same row are symmetrically distributed with respect to the scanning unit islands arranged in the same row along the first direction.
14. The display panel according to claim 4, wherein the light emitting cell islands are located on a symmetry axis of the display region, and the pixel islands are symmetrically distributed with respect to the symmetry axis.
15. The display panel according to claim 14, wherein the scan cell islands arranged in the same row are arranged on both sides of the light emitting cell island in the first direction.
16. The display panel according to claim 15, wherein the scanning unit islands arranged in the same row are symmetrically distributed with respect to the light emitting unit islands arranged in the same row along the first direction.
17. A display device, comprising: the display panel of any one of claims 1-16.
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| CN112785962B (en) | 2024-03-08 |
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