CN108962117B - Foldable display panel and foldable display device - Google Patents
Foldable display panel and foldable display device Download PDFInfo
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- CN108962117B CN108962117B CN201810829788.5A CN201810829788A CN108962117B CN 108962117 B CN108962117 B CN 108962117B CN 201810829788 A CN201810829788 A CN 201810829788A CN 108962117 B CN108962117 B CN 108962117B
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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
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Abstract
The embodiment of the invention provides a foldable display panel and a display device. The embodiment of the invention provides a foldable display panel and a display device, comprising: a non-folded region and a folded region. The non-folding area comprises a first pixel, a first gate line, a first data line and a first gate driving unit, wherein the first gate line extends along a first direction and is arranged along a second direction, the first data line extends along the second direction and is arranged along the first direction, and the first gate driving unit is arranged along the second direction. The folding area comprises second pixels, second gate lines, second data lines and second gate driving units, wherein the second gate lines extend along a second direction and are arranged along a first direction, the second data lines extend along the first direction and are arranged along the second direction, and the second gate driving units are arranged along the first direction. The embodiment of the invention provides a foldable display panel and a display device, and the driving capability of a middle folding area can be effectively increased and the display performance and reliability of the foldable display device can be improved by independently designing the grid driving units of the driving arrays of the non-folding area and the folding area.
Description
Technical Field
The present invention relates to the field of display, and in particular, to a foldable display panel and a foldable display device.
Background
The display device with the foldable performance is convenient to carry, and is an important development direction of the display device in the future.
At present, for the manufacturing scheme of the foldable display device, a plurality of small display screens are generally spliced together to form a complete display panel, and the spliced position is used as a foldable area. A plurality of small flexible display screens are spliced together to form a foldable display panel, and then the foldable display panel is applied to large-scale display equipment. However, when the splicing method is applied to small display devices (such as mobile phones and tablet computers), the display effect near the splicing area is not ideal, and the display effect of the whole display panel is affected. Therefore, it is a development trend of folding display devices in the future to bend the whole large display panel instead of splicing a plurality of small display panels.
In addition, when the display panel is folded, the driving circuit in the folding area also needs to be bent, and the semiconductor devices and the circuits in the driving circuit are susceptible to failure due to the bending, so that the display effect of the bending area is affected. In addition, the length and width of the foldable display device are increased compared to the length and width of a single display panel used independently in the related art, and the driving capability of the driving circuit for the display element is weakened, thereby affecting the display capability of the foldable display apparatus.
Disclosure of Invention
Embodiments of the present invention provide a foldable display panel and a foldable display device, which can independently design a gate driving circuit in a folding region and a non-folding region, and solve the problems of failure and reduced driving capability of a semiconductor device and a circuit in the driving circuit due to bending.
The embodiment of the invention provides a foldable display panel, which comprises a non-folding area and a folding area. The non-folded region comprises: a plurality of first pixels; a plurality of first gate lines extending in a first direction and arranged in a second direction, the first direction crossing the second direction; a plurality of first data lines extending in the second direction and arranged in the first direction; a plurality of first gate driving units arranged in the second direction, the first gate driving units being electrically connected to the first gate lines;
the fold region comprises: a plurality of second pixels; a plurality of second gate lines extending in the second direction and arranged in the first direction; a plurality of second data lines extending in the first direction and arranged in the second direction; and the second gate driving units are arranged along the first direction and are electrically connected with the second gate lines.
According to the foldable display panel provided by the embodiment of the invention, the first gate driving unit located in the non-folding area and the second gate driving unit located in the folding area are independently designed, so that the second gate driving unit is not influenced by the bending of the display panel, and the pixels of the folding area and the pixels of the non-folding area are respectively driven by the first gate driving unit and the second gate driving unit, so that the driving capability of the whole foldable display panel is improved, and the reliability and the stability of a product are improved.
Further, the first gate line is insulated from the second gate line.
According to the foldable display panel provided by the embodiment of the invention, as the first gate line and the second gate line are independently arranged, the first gate driving unit and the second gate driving unit of the foldable display panel can respectively and independently control the first gate line and the second gate line to provide the opening signals, so that the reliability of the foldable display panel is enhanced.
Further, one of the first data lines is electrically connected to one of the second data lines and is insulated from the other second data lines.
According to the foldable display panel provided by the embodiment of the invention, the first data lines and the second data lines are connected in a one-to-one correspondence manner, so that data can be provided for the ports of the second data lines by using the ports of the first data lines, the increase of the area of the opaque region caused by directly extending the second data lines to the chip is avoided, the transmittance of the foldable display panel is improved, and the uniformity of data transmission of the foldable display panel can be improved by providing display data from the same port for the first data lines and the second data lines.
Further, the length of the first pixel extending along the first direction is not equal to the length of the second pixel extending along the first direction.
According to the foldable display panel provided by the embodiment of the invention, the size and the interval of the pixels can be adjusted according to the requirements of the folding area and the non-folding area on the bending degree, and the bending performance of the foldable display panel is improved.
Further, the first pixel extends along the first direction by a length equal to a length of the second pixel along the second direction.
Further, the shape of the second pixel is the same as the shape of the first pixel after being rotated by about 90 degrees in the clockwise direction.
According to the foldable display panel provided by the embodiment of the invention, on the basis of adjusting the size and the distance of the pixels and improving the bendable performance of the foldable display panel according to the requirements of the folding area and the non-folding area on the bending degree, the areas and the shapes of the first pixel and the second pixel are the same, and the uniformity of pixel display of the foldable display panel is improved.
Further, the foldable display panel further comprises a substrate base material; at least one inorganic buffer layer is arranged between the substrate base material and the first gate line in the non-folding area; at least one organic buffer layer is arranged between the substrate base material and the second gate line in the folding area.
According to the foldable display panel provided by the embodiment of the invention, the organic buffer layer which is easier to bend is used in the folding area to replace the inorganic buffer layer, so that the risk that the display device is influenced by cracks generated by bending in the folding area is reduced. The display effect and the product reliability of the foldable display panel are improved.
Further, the non-folding region comprises a first non-folding region and a second non-folding region, and the first non-folding region, the folding region and the second non-folding region are sequentially arranged along the first direction; the first non-folding region includes the first pixel, the first gate line, the first data line, and the first gate driving unit; the second non-folding area includes a plurality of third pixels, a plurality of third gate lines, a plurality of third data lines, and a plurality of third gate driving units.
Further, the third gate lines extend along the first direction and are arranged along the second direction; the third data lines extend along the second direction and are arranged along the first direction; the third gate driving units are arranged along the second direction, and the third gate driving units are electrically connected with the third gate lines.
The foldable display panel provided by the embodiment of the invention comprises two non-folding areas and a bending area positioned between the two non-folding areas, so that the area of a display area of the foldable display panel in a flat state can be further increased, the visual experience of a user is improved, and the cost performance and the competitiveness of a product are enhanced.
Further, the third gate lines extend along the first direction and are arranged along the second direction; the third data lines extend along the second direction and are arranged along the first direction; the third gate driving units are arranged along the second direction, and the third gate driving units are electrically connected with the third gate lines.
Further, the third gate line is insulated from the first gate line and the second gate line.
According to the foldable display panel provided by the embodiment of the invention, as the first gate line, the second gate line and the third gate line are independently arranged, the first gate driving unit, the second gate driving unit and the third gate driving unit of the foldable display panel can respectively and independently control the first gate line, the second gate line and the third gate line to provide the opening signals, so that the reliability of the foldable display panel is enhanced.
Further, one of the second data lines is electrically connected to only one of the first data lines or only one of the third data lines, and is insulated from the other first data lines and the other third data lines.
According to the foldable display panel provided by the embodiment of the invention, as the second data line is correspondingly connected with the first data line or the third data line one by one, the port of the first data line or the port of the third data line can be used for providing data for the port of the second data line, the increase of the area of the opaque region due to the fact that the second data line is directly extended to the chip is avoided, the transmittance of the display panel is improved, and the uniformity of data transmission of the display panel is improved.
Further, two adjacent second data lines are electrically connected with one first data line and one third data line respectively.
According to the foldable display panel provided by the embodiment of the invention, the first data line and the third data line are used for alternately providing the data signal for the second data line, so that the uniformity of the display panel can be further increased.
Further, the first non-folding area includes a first non-display area and a first display area, the second non-folding area includes a second non-display area and a second display area, and the folding area includes a third non-display area and a third display area; the first non-display area, the first display area, the third display area, the second display area and the second non-display area are sequentially arranged along the first direction; the third non-display area and the third display area are arranged along the second direction; the first grid driving unit is positioned in the first non-display area; the second grid driving unit is positioned in the third non-display area; the third gate driving unit is located in the second non-display area.
Further, a length of the first non-folded region along the first direction is d1, a length of the folded region along the first direction is d2, a length of the second non-folded region along the first direction is d3, a length of the second non-folded region along the second direction is h, d1, d2, d3 and h are all greater than 0, and d1, d2, d3 and h satisfy the relationship d1+ d2+ d3> h.
According to the foldable display panel provided by the embodiment of the invention, the sum of the lengths of the two non-folding areas and the folding area between the two non-folding areas is larger than the maximum width of each area of the display panel, so that the design of the first gate line, the second gate line and the third gate line can be better matched, the area of the display area of the foldable display panel in the flat and flat process is further improved, the driving capability of the display panel is increased, and the display effect is improved.
The embodiment of the invention also provides a foldable display device, and the foldable display device improved by the embodiment of the invention comprises the foldable display panel provided by the embodiment of the invention, so that the foldable display device can overcome the influence of the bending of the display panel on the second gate driving unit, and the first gate driving unit and the second gate driving unit respectively drive the pixels in the folding area and the non-folding area, thereby improving the driving capability of the whole foldable display panel and increasing the reliability and the stability of a product.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a top view of a foldable display panel according to an embodiment of the present invention;
fig. 2A is a top view of a first pixel and a second pixel of a foldable display panel according to an embodiment of the present invention;
fig. 2B is a top view of a first pixel and a second pixel of another foldable display panel according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a foldable display panel according to an embodiment of the present invention;
fig. 4 is a top view of another foldable display panel provided in accordance with an embodiment of the present invention;
fig. 5 is a top view of another foldable display panel according to an embodiment of the present invention;
fig. 6A is a top view of a foldable display device according to an embodiment of the present invention;
fig. 6B is a side view of a foldable display device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be understood that although the terms first, second, third, etc. may be used to describe XXX in embodiments of the present invention, these XXX should not be limited to these terms. These terms are only used to distinguish XXX from each other. For example, a first XXX may also be referred to as a second XXX, and similarly, a second XXX may also be referred to as a first XXX, without departing from the scope of embodiments of the present invention.
An embodiment of the present invention provides a foldable display panel 100, as shown in fig. 1, including a non-folding region 10 and a folding region 20. The non-folding region 10 includes a plurality of first gate lines 12, a plurality of first data lines 14, a plurality of first pixels 16, and a plurality of first gate driving units 18. The first gate lines 12 extend along a first direction X and are arranged along a second direction Y, the first direction X intersecting the second direction Y. The first data lines 14 extend in the second direction Y and are arranged in the first direction X. The first gate driving units 18 are arranged along the second direction Y, and the first gate driving units 18 are electrically connected to the first gate lines 12.
It should be noted that, in fig. 1, the embodiment of the present invention shows a case where one first gate driving unit 18 is electrically connected to one first gate line 12, and in other embodiments of the present invention, one first gate driving unit 18 may be electrically connected to at least two first gate lines 12 according to circuit design and signal design changes, and control at least two first gate lines 12 to provide the first turn-on signal.
With reference to fig. 1, the folding area 20 includes a plurality of second gate lines 22, a plurality of second data lines 24, a plurality of second pixels 26, and a plurality of second gate driving units 28. The second gate lines 22 extend in the second direction Y and are arranged in the first direction X. The second data lines 24 extend in the first direction X and are arranged in the second direction Y. The second gate driving units 28 are arranged along the first direction X, and the second gate driving units 28 are electrically connected to the second gate lines 22.
The foldable display panel 100 according to the embodiment of the present invention has different arrangements of data lines, gate lines, and gate driving circuits in the non-folding region 10 and the folding region 20. As shown in fig. 1, the trace extending along the first direction X is the first gate line 12 in the non-folding area 10 and the first data line 24 in the folding area 20, that is, the first gate line 12 in the non-folding area 10 and the first data line 24 in the folding area 20 extend in the same direction and are disposed approximately parallel to each other. The trace extending along the second direction Y is the first data line 14 in the non-folding area 10 and the first gate line 22 in the folding area 20, that is, the first data line 14 in the non-folding area 10 and the first gate line 22 in the folding area 20 extend in the same direction and are arranged approximately parallel to each other.
It should be noted that, in fig. 1, the embodiment of the present invention shows a case where one second gate driving unit 28 is electrically connected to one second gate line 22, and in other embodiments of the present invention, one second gate driving unit 28 may be electrically connected to at least two second gate lines 22 according to circuit design and signal design changes, and control the at least two second gate lines 22 to provide the second turn-on signal.
In the foldable display panel 100 according to the embodiment of the present invention, the first gate driving unit 18 located in the non-folding region 10 and the second gate driving unit 28 located in the folding region 20 are designed independently, so that the second gate driving unit 28 is not affected by the bending of the display panel, and the first gate driving unit 18 and the second gate driving unit 28 respectively drive the first pixel 16 in the non-folding region 10 and the second pixel 26 in the non-folding region 20, thereby improving the driving capability of the foldable display panel 100 as a whole and increasing the reliability and stability of the product.
Further, as shown in fig. 1, the first gate line 12 and the second gate line 22 are insulated from each other, the first gate line 12 provides a first turn-on signal for the first pixel 16, and the second gate line 22 provides a second turn-on signal for the second pixel 26. The first and second gate lines 12 and 22 may independently control the first and second pixels 16 and 26, respectively, thereby enhancing the reliability of the foldable display panel 100.
Further, as shown in fig. 1, one first data line 14 is electrically connected to one second data line 24, and the first data line 14 is insulated from the other second data lines 24. Meanwhile, one second data line 24 is electrically connected to one first data line 14, and the second data line 24 is insulated from the other first data lines 14. That is, the first data lines 14 and the second data lines 24 are electrically connected in one-to-one correspondence with each other.
As can be seen, in the foldable display panel 100 provided in the embodiment of the present invention, since the first data lines 14 and the second data lines 24 are connected in a one-to-one correspondence, the port of the first data line 14 can be used to provide data to the port of the second data line 24, so as to avoid directly extending the second data line 24 to the chip. Thereby avoiding the problem of increasing the area of the opaque region caused by the second data line 24 extending directly to the chip, and improving the transmittance of the foldable display panel 100. Moreover, the first data line 14 and the second data line 24 provide display data from the same port, which can improve the uniformity of data transmission of the foldable display panel 100.
Further, the foldable display panel 100 provided by the embodiment of the invention can also design the first pixel and the second pixel differently. As shown in fig. 2A, a length X1 of the first pixel 16 extending along the first direction X and a length X2 of the second pixel 26 extending along the first direction X may be set to be unequal. Fig. 2A illustrates a case where the length X2 extending along the first direction X of the second pixel 26 may be greater than the length X1 extending along the first direction X of the first pixel 16.
The length Y1 of the first pixel 16 extending along the second direction Y and the length Y2 of the second pixel 26 extending along the second direction Y may also be set to be unequal or equal. Fig. 2A shows a case where the length Y2 of the second pixel 26 extending in the second direction Y is equal to the length Y1 of the first pixel 16 extending in the second direction Y along the first pixel 16. In other embodiments of the present invention, the length Y2 of the second pixel 26 extending along the second direction Y may not be equal to the length Y1 of the first pixel 16 extending along the first pixel 16 along the second direction Y.
Embodiments of the present invention may also set the pitch P1 between the first pixels 16 and the pitch P2 between the second pixels 26 to be unequal. With continued reference to FIG. 2A, the pitch P1 between the first pixels 16 is less than the pitch P2 between the second pixels 26. Therefore, the pixel pitch of the folding area 20 can be larger, and the folding area is easier to bend, and the negative lines among the pixels can be widened or designed into broken lines, so that the bending resistance of the display device in the folding area 20 is increased.
Further, as shown in fig. 2B, the length of the first pixel 16 extending in the first direction X and the length of the second pixel 26 extending in the second direction Y may be set to be equal. At the same time, the length of the first pixel 16 extending in the second direction Y and the length of the second pixel 26 extending in the first direction X may be set to be equal. I.e. the shape of the second pixel 26 is the same as the shape of the first pixel 16 rotated about 90 degrees in the clockwise direction.
According to the foldable display panel 100 provided by the embodiment of the invention, on the basis of adjusting the size and the distance of the pixels according to the requirement of the folding region 20 and the non-folding region 10 on the bending degree and improving the bending performance of the foldable display panel 100, the areas and the shapes of the first pixels 16 and the second pixels 26 are the same, and the uniformity of pixel display of the foldable display panel 100 is improved.
Further, as shown in fig. 3, the foldable display panel 100 further includes a substrate base material 50. At least one inorganic buffer layer 51 is disposed between the substrate 50 and the first gate line 12 in the non-folding region 10. In the non-folding region 10, the foldable display panel 100 further includes at least one inorganic buffer layer 51, a gate insulating layer, a semiconductor layer, a first metal layer, a first insulating layer, a second insulating layer, and a second metal layer on a side of the substrate 50 adjacent to the first gate line 12. The first gate line 12 is located on the first metal layer, and the first data line 14 is located on the second metal layer.
At least one organic buffer layer 52 is disposed between the substrate 50 and the second gate line 22 in the folding region 20. In the folding region 20, the foldable display panel 100 further includes at least one organic buffer layer 52, a gate insulating layer, a semiconductor layer, a first metal layer, a first insulating layer, a second insulating layer, and a second metal layer on the substrate 50 at a side close to the second gate line 22. The second gate line 22 is located in the first metal layer, and the second data line 24 is located in the second metal layer.
According to the foldable display panel 100 provided by the embodiment of the invention, the organic buffer layer 52 which is easier to bend is used for replacing the inorganic buffer layer 51 in the folding area 20, so that the risk that the display device is influenced by the folding area 20 due to cracks generated by bending is reduced. The display effect and the product reliability of the foldable display panel 100 are improved.
As shown in fig. 4, the non-folding region of the foldable display panel 100 further includes a first non-folding region 101 and a second non-folding region 102, and the first non-folding region 101, the folding region 20, and the second non-folding region 102 are sequentially arranged along the first direction X.
The first non-folding region 101 includes a first pixel 16, a first gate line 12, a first data line 14 and a first gate driving unit 18, i.e., the first pixel 16, the first gate line 12, the first data line 14 and the first gate driving unit 18 are all located in the first non-folding region 101.
The folding area 20 includes a second pixel 26, a second gate line 22, a second data line 24 and a second gate driving unit 28, i.e., the second pixel 26, the second gate line 22, the second data line 24 and the second gate driving unit 28 are all located in the folding area 20.
The second non-folding region 102 includes a plurality of third pixels 36, a plurality of third gate lines 32, a plurality of third data lines 34, and a plurality of third gate driving units 38, i.e., the third pixels 36, the third gate lines 32, the third data lines 34, and the third gate driving units 38 are all located in the second non-folding region 102.
The foldable display panel 100 provided by the embodiment of the invention comprises two non-folding areas and a bending area between the two non-folding areas, so that the area of a display area of the foldable display panel 100 in a flat state can be further increased, the visual experience of a user is improved, and the cost performance and the competitiveness of a product are enhanced.
Further, with reference to fig. 4, the third gate lines 32 extend along the first direction X and are arranged along the second direction Y. The third data lines 34 extend in the second direction Y and are arranged in the first direction X. The third gate driving units 38 are arranged along the second direction Y, and the third gate driving units 38 are electrically connected to the third gate lines 32. That is, the third gate line 32 is disposed in a manner similar to that of the first gate line 12, and the third data line 34 is disposed in a manner similar to that of the first data line 14, that is, the third gate line 32 of the second non-folding region 102 and the first data line 24 of the folding region 20 extend in the same direction and are disposed approximately in parallel with each other. The third data line 34 of the second non-folding region 102 and the first gate line 22 of the folding region 20 extend in the same direction and are disposed approximately parallel to each other.
Further, with continued reference to fig. 4, the third gate line 32 is insulated from the first gate line 12 and the second gate line 22. That is, the first gate line 12, the second gate line 22, and the third gate line 32 are insulated from each other.
According to the foldable display panel 100 provided by the embodiment of the invention, since the first gate line 12, the second gate line 22 and the third gate line 32 are independently arranged, the first gate driving unit 18, the second gate driving unit 28 and the third gate driving unit 38 of the foldable display panel 100 can respectively and independently control the first gate line 12, the second gate line 22 and the third gate line 32 to respectively provide the first opening signal, the second opening signal and the third opening signal, so that the reliability of the foldable display panel is enhanced. And the problems of insufficient driving capability due to the increase of the area of the foldable display panel 100 and the increase of the number of pixels are solved.
Further, with reference to fig. 4, one second data line 24 is electrically connected to only one first data line 14 or only one third data line 34, and is insulated from the other first data lines 14 and the other third data lines 34. One first data line 14 is electrically connected to only one second data line 24, and one third data line is electrically connected to only one second data line 24. That is, one portion of the first data lines 14 and one portion of the second data lines 24 are connected in a one-to-one correspondence, and the other portion of the third data lines 34 is connected in a one-to-one correspondence with the second data lines 24 that are not electrically connected to the first data lines 14.
According to the foldable display panel 100 provided by the embodiment of the invention, since one second data line 24 is connected with one first data line 14 or one third data line 34 in a one-to-one correspondence manner, the port of the first data line 14 or the port of the third data line 34 can be used for providing data for the port of the second data line 24, the increase of the area of the opaque region due to the fact that the second data line 24 directly extends to the chip is avoided, the transmittance of the foldable display panel 100 is improved, and the uniformity of data transmission of the foldable display panel 100 is improved.
Further, with reference to fig. 4, two adjacent second data lines 24 are electrically connected to one first data line 14 and one third data line 34, respectively. That is, the second data lines 24 arranged in the second direction Y are alternately electrically connected to the first data lines 14 and the third data lines 34. That is, the second data lines 24 of the odd-numbered rows are electrically connected to the first data lines 14, and the second data lines 24 of the even-numbered rows are electrically connected to the third data lines 34; or the second data line 24 of the even-numbered row is electrically connected to the first data line 14, and the second data line 24 of the odd-numbered row is electrically connected to the third data line 34. Such an arrangement may be adopted that the port of the first data line 14 and the port of the third data line 34 are not likely to cause a split phenomenon in the folding region 20 when data is provided, so that uniformity of data transmission between pixels is further improved.
Further, referring to fig. 5, the first non-folding area 101 includes a first non-display area 1011 and a first display area 1012. The second non-folding region 102 includes a second non-display region 1021 and a second display region 1022. The folding area 20 includes a third non-display area 201 and a third display area 202. The first non-display area 1011, the first display area 1012, the third display area 202, the second display area 1022, and the second non-display area 1021 are sequentially arranged along the first direction X. The third non-display area 201 and the third display area 202 are arranged in the second direction Y. The first gate driving unit 18 is located in the first non-display region 1011. The second gate driving unit 28 is located in the third non-display region 201. The third gate driving unit 38 is located in the second non-display region 1021.
Further, referring to fig. 4 and fig. 5, the length of the first non-folding region 101 along the first direction X is d1, the length of the folding region 20 along the first direction X is d2, the length of the second non-folding region 102 along the first direction X is d3, the length of the folding region 20 along the second direction Y is h, d1, d2, d3 and h are all greater than 0, and d1, d2, d3 and h satisfy the relationship d1+ d2+ d3> h. The length of the foldable display panel 100 along the first direction X is greater than the length of the foldable display panel 100 along the second direction Y, i.e. the width of the foldable display panel 100 is greater than the length, i.e. the foldable display panel 100 is a horizontal screen. The bending axis of the foldable display panel 100 is parallel to the second direction Y.
According to the foldable display panel 100 provided by the embodiment of the invention, by setting the sum of the lengths of the two non-folding areas and the folding area between the two non-folding areas to be greater than the maximum width of each area of the display panel, the design of the first gate line 12, the second gate line 22 and the third gate line 32 can be better matched, the driving capability of the display panel is increased while the area of the display area of the foldable display panel 100 is further increased when the foldable display panel is unfolded, and the display effect is improved.
The embodiment of the present invention further provides a foldable display device, and fig. 6A shows a schematic diagram of the foldable display device 500 when it is unfolded, and the foldable display device 500 includes any one of the foldable display panels 100 provided in the embodiment of the present invention. As shown in fig. 6A, the display of the foldable display device 500 may include a first non-folding region 101, a folding region 20, and a second non-folding region 102. Sensing devices such as cameras, sensors, earpieces, etc. may be provided as the folding area 20.
Fig. 6B shows a side view of the foldable display device 500 after it is folded. The bending curvature of the folded region 20 is not equal to 0, and the bending curvatures of the first and second non-folded regions 101 and 102 are equal to 0. The folding region 20 can be folded to make the foldable display device 500 in a closed state, so that the foldable display device 500 can be reduced in size and is convenient to carry.
It should be noted that the foldable display device 500 may be an electronic device with a display function, such as a smart phone, a tablet display computer, a notebook, or a display.
It should be noted that fig. 6 and 6B are only an example of the foldable display device 500, the shape of the foldable display device 500 is not limited to the shape or the use state shown in fig. 6 and 6B, and the foldable display device 500 may be rectangular or non-rectangular. The foldable display device 500 may or may not have at least one bezel. The foldable display device 500 may not be provided with a camera or a headphone or the like in the display panel.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (15)
1. A foldable display panel comprising a non-folding region and a folding region, characterized in that:
the non-folded region comprises:
a plurality of first pixels;
a plurality of first gate lines extending in a first direction and arranged in a second direction, the first direction crossing the second direction;
a plurality of first data lines extending in the second direction and arranged in the first direction;
a plurality of first gate driving units arranged in the second direction, the first gate driving units being electrically connected to the first gate lines;
the fold region comprises:
a plurality of second pixels;
a plurality of second gate lines extending in the second direction and arranged in the first direction;
a plurality of second data lines extending in the first direction and arranged in the second direction;
and the second gate driving units are arranged along the first direction and are electrically connected with the second gate lines.
2. The foldable display panel of claim 1, wherein the first gate line is insulated from the second gate line.
3. The foldable display panel of claim 1, wherein one of the first data lines is electrically connected to one of the second data lines and is insulated from the other second data lines.
4. The foldable display panel of claim 1, wherein a length of the first pixel extending along the first direction is not equal to a length of the second pixel extending along the first direction.
5. The foldable display panel of claim 4, wherein a length of the first pixel extending in the first direction is equal to a length of the second pixel extending in the second direction.
6. The foldable display panel of claim 5, wherein a shape of the second pixel is the same as a shape of the first pixel rotated 90 degrees in a clockwise direction.
7. The foldable display panel of claim 1, further comprising a substrate base material;
at least one inorganic buffer layer is arranged between the substrate base material and the first gate line in the non-folding area;
at least one organic buffer layer is arranged between the substrate base material and the second gate line in the folding area.
8. The foldable display panel of claim 1, wherein the non-folding region comprises a first non-folding region and a second non-folding region, the first non-folding region, the second non-folding region being arranged in sequence along the first direction;
the first non-folding region includes the first pixel, the first gate line, the first data line, and the first gate driving unit;
the second non-folding area includes a plurality of third pixels, a plurality of third gate lines, a plurality of third data lines, and a plurality of third gate driving units.
9. The foldable display panel of claim 8,
the third gate lines extend along the first direction and are arranged along the second direction;
the third data lines extend along the second direction and are arranged along the first direction;
the third gate driving units are arranged along the second direction, and the third gate driving units are electrically connected with the third gate lines.
10. The foldable display panel of claim 9, wherein the third gate line is insulated from the first gate line and the second gate line.
11. The foldable display panel of claim 9, wherein one of the second data lines is electrically connected to only one of the first data lines or only one of the third data lines, and is insulated from the other first data lines and the other third data lines.
12. The foldable display panel of claim 11, wherein two adjacent second data lines electrically connect one first data line and one third data line, respectively.
13. The foldable display panel of claim 9, wherein the first non-folding area comprises a first non-display area and a first display area, the second non-folding area comprises a second non-display area and a second display area, and the folding area comprises a third non-display area and a third display area;
the first non-display area, the first display area, the third display area, the second display area and the second non-display area are sequentially arranged along the first direction;
the third non-display area and the third display area are arranged along the second direction;
the first grid driving unit is positioned in the first non-display area;
the second grid driving unit is positioned in the third non-display area;
the third gate driving unit is located in the second non-display area.
14. The foldable display panel of claim 13, wherein the first non-folding region has a length along the first direction of d1, the folding region has a length along the first direction of d2, the second non-folding region has a length along the first direction of d3, the second non-folding region has a length along the second direction of h, d1, d2, d3 and h are all greater than 0, and d1, d2, d3 and h satisfy the relationship d1+ d2+ d3> h.
15. A foldable display device, characterized in that it comprises a foldable display panel according to any of claims 1-14.
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| CN201810829788.5A CN108962117B (en) | 2018-07-25 | 2018-07-25 | Foldable display panel and foldable display device |
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| CN201810829788.5A CN108962117B (en) | 2018-07-25 | 2018-07-25 | Foldable display panel and foldable display device |
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| CN110767097B (en) * | 2019-11-27 | 2021-12-31 | 武汉天马微电子有限公司 | Display panel and display device |
| CN111128029B (en) * | 2019-12-31 | 2021-02-26 | 武汉华星光电半导体显示技术有限公司 | Folding display panel and folding display device |
| CN112002237B (en) * | 2020-08-31 | 2022-04-12 | 上海天马微电子有限公司 | Stretchable display panel, display device and assembling method thereof |
| CN114387918B (en) * | 2022-01-14 | 2022-12-20 | 福建华佳彩有限公司 | Pixel circuit arrangement structure of OLED folding screen and driving method thereof |
| CN114999377A (en) * | 2022-06-29 | 2022-09-02 | 昆山国显光电有限公司 | Display panel and display device |
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| TWI667644B (en) * | 2013-07-19 | 2019-08-01 | 日商半導體能源研究所股份有限公司 | Data processing device |
| CN103985371B (en) * | 2014-05-31 | 2017-03-15 | 深圳市华星光电技术有限公司 | Flexible splicing display device |
| KR102387786B1 (en) * | 2015-07-28 | 2022-04-15 | 엘지디스플레이 주식회사 | Backplane Substrate and Flexible Display Using the Same |
| KR102505585B1 (en) * | 2015-12-31 | 2023-03-02 | 엘지디스플레이 주식회사 | Organic light emitting display panel and organic light emitting display device |
| CN108255331B (en) * | 2016-12-29 | 2024-03-08 | 京东方科技集团股份有限公司 | Flexible touch screen, manufacturing method thereof, display screen, manufacturing method thereof and display equipment |
| CN107293570B (en) * | 2017-05-12 | 2019-10-22 | 上海天马微电子有限公司 | Display panel and display device |
| CN107945663A (en) * | 2017-11-08 | 2018-04-20 | 武汉华星光电半导体显示技术有限公司 | A kind of flexible foldable display panel |
| CN107862998B (en) * | 2017-11-09 | 2020-05-19 | 深圳市华星光电半导体显示技术有限公司 | Flexible GOA display panel and manufacturing method thereof |
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