Patent ID: 12228829

DETAILED DESCRIPTION

For clearer descriptions of the objectives, technical solutions, and advantages of the present disclosure, embodiments of the present disclosure are described in detail hereinafter with reference to the accompanying drawings.

With the continuous development of the display technology, smart phone may generally employ an irregularly-shaped display substrate, and a display region of the irregularly-shaped display substrate is in a non-rectangular shape. In the related art, pixels in the irregularly-shaped display substrate are rectangular pixels that are arranged in a zigzag shape on a periphery of a display region of the irregularly-shaped display substrate. As a result, a display effect is affected.

For example, referring toFIG.1, assuming that the display region of the irregularly-shaped display substrate is in an arc shape, an image displayed in the irregularly-shaped display substrate is w % bite, and a peripheral region surrounding the display region in the irregularly-shaped display substrate is black, then the image displayed on a periphery of the irregularly-shaped display substrate is in a zigzag shape, and thus the display effect of the irregularly-shaped display substrate is poor.

FIG.2is a partial structural schematic diagram of a display substrate according to an embodiment of the present disclosure. Referring toFIG.2, a display substrate10may include a base substrate101, a plurality of rectangular pixels102, and at least one irregularly-shaped pixel103. The irregularly-shaped pixel103may be a pixel in a non-rectangular shape. For example,FIG.2illustrates one rectangular pixel102and four irregularly-shaped pixels103.FIG.3is a structural schematic diagram of a display substrate according to an embodiment of the present disclosure. Referring toFIG.3, a display substrate10further includes a black matrix layer104.

Referring toFIG.2, the base substrate101may be provided with an irregularly-shaped display region101aand a peripheral region101bsurrounding the irregularly-shaped display region101a. The plurality of rectangular pixels102and the at least one irregularly-shaped pixel103may be disposed in the irregularly-shaped display region101a. Further, the at least one irregularly-shaped pixel103is proximal to the peripheral region101brelative to the rectangular pixel102, and a shape of a boundary line of a side, proximal to the peripheral region101b, of each of the at least one irregularly-shaped pixel103matches with a shape of a boundary line101a1of the irregularly-shaped display region101a.

That is, a pixel distal from the boundary line101a1of the irregularly-shaped display region101amay be the rectangular pixel102, and a pixel proximal to the boundary line101a1of the irregularly-shaped display region101amay be the irregularly-shaped pixel103. Further, a shape of the irregularly-shaped pixel103proximal to the boundary line101a1of the irregularly-shaped display region101amatches with the shape of the boundary line101a1of the irregularly-shaped display region101a, such that the irregularly-shaped pixel does not go beyond the irregularly-shaped display region of the display substrate, a narrow bezel of the display substrate may be realized conveniently, and an image displayed at the boundary line101a1of the irregularly-shaped display region101amay be prevented from being in a zigzag shape. In this way, the display effect of the display device is ensured.

It is to be noted that, referring toFIG.3, the rectangular pixel102and the irregularly-shaped pixel103may be disposed on a same side of a base substrate101, and disposed in a same layer. For example, each film layer in the rectangular pixel102and a corresponding film layer in the irregularly-shaped pixel103may be prepared by a same patterning process.

In some embodiments of the present disclosure, referring toFIG.3, a black matrix layer104may be disposed on a side, distal from the base substrate101, of a plurality of rectangular pixels102and at least one irregularly-shaped pixel103. Further, referring toFIG.2, the black matrix layer104may form an opening in a region where each of the plurality of rectangular pixels102and at least one irregularly-shaped pixel103is disposed, such that light emitted by each pixel may exit from the opening, thereby realizing normal display of the display device.

Referring toFIG.2, an area of an opening a formed by the black matrix layer104in a region where each rectangular pixel102is disposed is larger than an area of an opening b in a region where any of the at least one irregularly-shaped pixel103is disposed. Because an area of an orthographic projection of the irregularly-shaped pixel103on the base substrate101is smaller than an area of an orthographic projection of the rectangular pixel102on the base substrate101, the area of the opening b formed by the black matrix layer104in the region where the irregularly-shaped pixel103is disposed is smaller, such that a smooth transition of luminance of light emitted by the irregularly-shaped pixel103and the rectangular pixel102is ensured, the visual comfort of the display device is better, and the luminance uniformity is better.FIG.3only illustrates the location of the black matrix layer104relative to the rectangular pixel102and the irregularly-shaped pixel103, and does not illustrate the opening of the black matrix layer104in the rectangular pixel102or the irregularly-shaped pixel103.

In summary, the embodiments of the present disclosure provide a display substrate. The display substrate includes at least one irregularly-shaped pixel. The shape of the boundary line of a side, proximal to the peripheral region, of each of the at least one irregularly-shaped pixel matches with the shape of the boundary line of the irregularly-shaped display region in the base substrate, such that the irregularly-shaped pixel does not go beyond the irregularly-shaped display region of the display substrate, a narrow bezel of the display substrate is realized conveniently, and the image displayed at the boundary line of the irregularly-shaped display region is prevented from being in a zigzag shape, thereby ensuring the display effect of the display device. Further, because the area of the orthographic projection of the irregularly-shaped pixel on the base substrate is smaller than the area of the orthographic projection of the rectangular pixel on the base substrate, the area of the opening formed by the black matrix layer in the region where each rectangular pixel is disposed is larger than the area of the opening formed by the black matrix layer in the region where any irregularly-shaped pixel is disposed, such that the smooth transition of luminance of light emitted by the irregularly-shaped pixel and the rectangular pixel is ensured, and the luminance uniformity of the display device is better.

FIG.4is a partial structural schematic diagram of another display substrate according to an embodiment of the present disclosure. Referring toFIG.4, each of the at least one irregularly-shaped pixel103may include a plurality of first sub-pixels1031, at least one of which is an irregularly-shaped sub-pixel.

For example,FIG.4illustrates four irregularly-shaped pixels103(103a,103b,103cand103d), and each of the at least one irregularly-shaped pixel103includes three first sub-pixels1031(1031a,1031band1031c). All first sub-pixels1031in a first irregularly-shaped pixel103a, a third irregularly-shaped pixel103cand a fourth irregularly-shaped pixel103dare the irregularly-shaped sub-pixels, a first first sub-pixel1031ain a second irregularly-shaped pixel103bis the irregularly-shaped sub-pixel, and a second first sub-pixel1031band a third first sub-pixel1031cthat are in the second irregularly-shaped pixel103bare not the irregularly-shaped sub-pixels.

In some embodiments of the present disclosure, three first sub-pixels1031in each of the at least one irregularly-shaped pixel103may be a red (R) sub-pixel1031a, a green (G) sub-pixel1031band a blue (B) sub-pixel1031c. Light emitted by the red sub-pixel1031ais red, light emitted by the green sub-pixel1031bis green, and light emitted by the blue sub-pixel1031cis blue.

A shape of a boundary line of a side, proximal to a peripheral region101b, of an irregularly-shaped pixel103matches with a shape of a boundary line of an irregularly-shaped display region101a. Thus, areas of orthographic projections of a plurality of first sub-pixels1031in the irregularly-shaped pixel103on a base substrate101are usually unequal. As a result, the luminance of light emitted by each first sub-pixel1031in the irregularly-shaped pixel103may be inconsistent, thereby resulting in colour deviation. For example, the luminance of light emitted by the first sub-pixel1031with the larger area of the orthographic projection on the base substrate101is higher, and the luminance of light emitted by the first sub-pixel1031with the smaller area of the orthographic projection on the base substrate101is lower.

Therefore, in some embodiments of the present disclosure, for a plurality of first sub-pixels1031in each of the at least one irregularly-shaped pixel103, areas of openings formed by a black matrix layer104in regions where the first sub-pixels1031are disposed are equal, such that opening ratios of the first sub-pixels1031are consistent, thereby realizing the consistent luminance of light emitted by each first sub-pixel1031and avoiding the colour deviation.

In an exemplary embodiment, referring toFIG.4, for the three first sub-pixels1031in the first irregularly-shaped pixel103a, an area of an opening b1formed by a black matrix layer104in a region where the first first sub-pixel1031ais disposed, an area of an opening b2formed by the black matrix layer104in a region where the second first sub-pixel1031bis disposed, and an area of an opening b3formed by the black matrix layer104in a region where the third first sub-pixel1031cis disposed are equal. Referring toFIG.4, the opening b1, the opening b2and the opening b3are all rectangles.

Referring toFIG.4, at least part of a boundary line of an irregularly-shaped display region101amay be an arc, and a shape of the irregularly-shaped sub-pixel may be a triangle, trapezoid or pentagon. A boundary line of the irregularly-shaped sub-pixel adjacent to the arc is tangential to the arc. The shape of the irregularly-shaped sub-pixel may refer to a shape of an orthographic projection of the irregularly-shaped sub-pixel on the base substrate101.

In an exemplary embodiment, referring toFIG.4, shapes of the first first sub-pixel1031a, the second first sub-pixel1031band the third first sub-pixel1031cthat are in the first irregularly-shaped pixel103aare all trapezoids, and a bevel edge of the trapezoid is tangential to the boundary line of the irregularly-shaped display region101a. A shape of the first first sub-pixel1031ain the second irregularly-shaped pixel103bis a pentagon. A target edge in the pentagon is tangential to the boundary line of the irregularly-shaped display region101a, and an extension direction of the target edge intersects with an extension direction of any other edge in the pentagon except the target edge. A shape of the first first sub-pixel1031ain the third irregularly-shaped pixel103cis a triangle, and a bevel edge of the triangle is tangential to the boundary line of the irregularly-shaped display region101aShapes of the second first sub-pixel1031band the third first sub-pixel1031cthat are in the third irregularly-shaped pixel103care both trapezoids, and a bevel edge of the trapezoid may be tangential to the boundary line of the irregularly-shaped display region101a. Shapes of a first first sub-pixel1031a, a second first sub-pixel1031band a third first sub-pixel1031cthat are in the fourth irregularly-shaped pixel103dare all trapezoids, and a bevel edge of the trapezoid may be tangential to the boundary line of the irregularly-shaped display region101a.

FIG.5is a partial structural schematic diagram of another display substrate according to an embodiment of the present disclosure. Referring toFIG.5, a shape of an opening formed by a black matrix layer104in a region where each irregularly-shaped sub-pixel is disposed may be same as the shape of the irregularly-shaped sub-pixel. For example, in the case that the shape of the irregularly-shaped sub-pixel is a triangle, the shape of the opening formed by the black matrix layer104in the region where the irregularly-shaped sub-pixel is disposed is also a triangle.

In some embodiments of the present disclosure, because the light emitted by each sub-pixel exits from an opening formed by the black matrix layer104in a region where the sub-pixel is disposed, a shape of an image displayed in a region where the sub-pixel is disposed in the display substrate10is the same as a shape of the opening formed by the black matrix layer104in the region where the sub-pixel is disposed. That is, a shape of an opening formed by the black matrix layer104in a region where an irregularly-shaped sub-pixel is disposed may match with the shape of the boundary line of the irregularly-shaped display region101a, such that the shape of the image displayed in the region where the sub-pixel is disposed in the display substrate10matches with the shape of the boundary line of the irregularly-shaped display region101a. Therefore, an image displayed at the boundary line of the irregularly-shaped display region101amay be prevented from being in a zigzag shape, and the display effect of the display device is better.

Referring toFIG.4andFIG.5, the plurality of first sub-pixels1031in each of the at least one irregularly-shaped pixel103may be arranged in a pixel row direction X. Referring toFIG.6, a plurality of first sub-pixels1031in each of the at least one irregularly-shaped pixel103may be arranged in a pixel column direction Y, which is not limited in the embodiments of the present disclosure.

In an optional embodiment,FIG.7is a schematic diagram of an irregularly-shaped pixel illustrated inFIG.5, andFIG.8is a schematic diagram of a rectangular pixel illustrated in FIG.5. Assuming that the plurality of first sub-pixels1031are arranged in the pixel row direction X, then referring toFIGS.5to8, a sum d1 of lengths of the plurality of first sub-pixels1031in the pixel row direction X is less than or equal to a length d2 of a rectangular pixel102in the pixel row direction X, that is, d1=m1+m2+m3≤d2. A length of any one of the plurality of first sub-pixels1031in the pixel column direction Y is less than or equal to a length h of the rectangular pixel102in the pixel column direction Y. For example, referring toFIG.7, a length n4 of a third first sub-pixel1031cin the pixel column direction Y is less than the length h of the rectangular pixel102in the pixel column direction Y, that is, n4<h.

Referring toFIG.9, in the case that the sum d1 of lengths of the plurality of first sub-pixels1031in the pixel row direction X is equal to the length d2 of the rectangular pixel102in the pixel row direction X and the length n of each of the plurality of first sub-pixels1031in the pixel column direction Y is equal to the length hl of the rectangular pixel102in the pixel column direction Y, that is, d1=m1+m2+m3=d2 and n=h, a shape of one first sub-pixel1031athat is in the plurality of first sub-pixels1031and proximal to a peripheral region101bmay be a pentagon. A target edge in the pentagon is tangential to a boundary line of an irregularly-shaped display region101a, and an extension direction of the target edge intersects with an extension direction of any other edge in the pentagon except the target edge.

It is to be noted that, a shape of the first sub-pixel1031that is in the plurality of first sub-pixels1031and proximal to the peripheral region101bis more susceptible to the shape of the boundary line of the irregularly-shaped display region101a. Therefore, the areas of the orthographic projections of the plurality of first sub-pixels1031on the base substrate101are equal to ensure the display effect of the display device. In the embodiments of the present disclosure, in the plurality of first sub-pixels1031, a length of the first sub-pixel1031proximal to the peripheral region101bin a pixel row direction X may be greater than or equal to a length of the first sub-pixel1031distal from the peripheral region101bin the pixel row direction X. Further, a length of the first sub-pixel1031proximal to the peripheral region101bin a pixel column direction Y may be less than or equal to a length of the first sub-pixel1031distal from the peripheral region101bin the pixel column direction Y.

Thus, by increasing the length of the first sub-pixel1031proximal to the peripheral region101bin the pixel row direction X, and decreasing the length of the first sub-pixel1031proximal to the peripheral region101bin the pixel column direction Y, the area of the orthographic projection of the first sub-pixel1031proximal to the peripheral region101bon the base substrate101is equal to the area of the orthographic projection of the first sub-pixel1031distal from the peripheral region101bon the base substrate101. Therefore, the black matrix layer104may be provided with openings with the same area in a region where the plurality of first sub-pixels1031are disposed to ensure the display effect of the display device.

Further, by adjusting the lengths of the first sub-pixel1031proximal to the peripheral region101bin the pixel row direction X and in the pixel column direction Y, the shape of the first sub-pixel1031proximal to the peripheral region101bmay match with the shape of the boundary line of the irregularly-shaped display region101a, thereby ensuring the display effect of the display device.

In an exemplary embodiment, referring toFIG.7, in a first irregularly-shaped pixel103a, a length m1 of the first first sub-pixel1031ain the pixel row direction X is greater than a length m2 of a second first sub-pixel1031bin the pixel row direction X, and the length m2 of the second first sub-pixel1031bin the pixel row direction X is greater than a length m3 of the third first sub-pixel1031cin the pixel row direction X. That is, m1>m2>m3.

Further, referring toFIG.7, a shape of each of three first sub-pixels1031is a trapezoid. Each first sub-pixel1031has a first edge and a second edge that are parallel to each other, and the first edge is proximal to a peripheral region101brelative to the second edge. Referring toFIG.7, a length of the second edge of the first first sub-pixel1031ais equal to a length of the first edge of the second first sub-pixel1031b, and a length of the second edge of the second first sub-pixel1031bis equal to a length of the first edge of the third first sub-pixel1031c. Further, a length n1 of the first edge of the first first sub-pixel1031ais less than the length n2 of the second edge of the first first sub-pixel1031a. The length n2 of the first edge of the second first sub-pixel1031bis less than the length n3 of the second edge of the second first sub-pixel1031b. The length n3 of the first edge of the third first sub-pixel1031cis less than a length n4 of the second edge of the third first sub-pixel1031c. That is, n1<n2<n3<n4.

Since the shape of the opening formed by the black matrix layer104in the region where the irregularly-shaped sub-pixel is disposed matches with the shape of the boundary line of the irregularly-shaped display region101a, an edge of an opening corresponding to a smaller edge in the first sub-pixel1031is also smaller, and an edge of an opening corresponding to a larger edge in the first sub-pixel1031is also larger.

In an exemplary embodiment, referring toFIG.7, a length w1 of an opening formed by the black matrix layer104in a region where the first first sub-pixel1031ais disposed in the pixel row direction X is greater than a length w2 of an opening formed by the black matrix layer104in a region where the second first sub-pixel1031bis disposed in the pixel row direction X. The length w2 of the opening formed by the black matrix layer104in the region where the second first sub-pixel1031bis disposed in the pixel row direction X is greater than a length w3 of an opening formed by the black matrix layer104in a region where the third first sub-pixel1031cis disposed in the pixel row direction X. That is, w1>w2>w3. Further, a length r1 of an opening formed by the black matrix layer104in a region where the first first sub-pixel1031ais disposed in the pixel column direction Y is less than a length r2 of an opening formed by the black matrix layer104in a region where the first second sub-pixel1031bis disposed in the pixel column direction Y. The length r2 of the opening formed by the black matrix layer104in the region where the first second sub-pixel1031bis disposed in the pixel column direction Y is less than a length r3 of an opening formed by the black matrix layer104in a region where the first third sub-pixel1031cis disposed in the pixel column direction Y. That is, r1<r2<r3.

In another optional embodiment,FIG.10is a schematic diagram of the irregularly-shaped pixel illustrated inFIG.6, andFIG.11is a schematic diagram of the rectangular pixel illustrated inFIG.6. Assuming that the plurality of first sub-pixels1031are arranged in the pixel column direction Y, then referring toFIG.6,FIG.10andFIG.11, a sum g1 of lengths of the plurality of first sub-pixels1031in the pixel column direction Y is less than or equal to a length g2 of the rectangular pixel102in the pixel column direction Y, that is, g1=s1+s2+s3<g2. A length of any one of the plurality of first sub-pixels1031in a pixel row direction X is less than or equal to a length k of the rectangular pixel102in the pixel row direction X. For example, inFIG.9, a length f4 of a third first sub-pixel1031cin the pixel row direction X is less than the length k of the rectangular pixel102in the pixel row direction X, that is, f4<k.

Referring toFIG.12, in the case that the sum g1 of lengths of the plurality of first sub-pixels1031in the pixel column direction Y is equal to the length g2 of the rectangular pixel102in the pixel column direction Y, and a length e of each of the plurality of first sub-pixels1031in the pixel row direction X is equal to the length k of the rectangular pixel102in the pixel row direction X, that is, g1=s1+s2+s3=g2 and e=k, a shape of one first sub-pixel that is in the plurality of first sub-pixels1031and proximal to a peripheral region101bmay be a pentagon. A target edge in the pentagon is tangential to a boundary line of an irregularly-shaped display region101a, and an extension direction of the target edge intersects with an extension direction of any other edge in the pentagon except the target edge.

It is to be noted that, the shape of the first sub-pixel1031that is in the plurality of first sub-pixels1031and proximal to the peripheral region101bis more susceptible to the shape of the boundary line of the irregularly-shaped display region101a. Therefore, the area of the orthographic projection of each of the plurality of first sub-pixels1031on the base substrate101is equal to ensure the display effect of the display device. In the embodiments of the present disclosure, in the plurality of first sub-pixels1031, the length of the first sub-pixel1031proximal to the peripheral region101bin the pixel column direction Y may be greater than or equal to the length of the first sub-pixel1031distal from the peripheral region101bin the pixel column direction Y. Further, the length of the first sub-pixel1031proximal to the peripheral region101bin the pixel row direction X may be less than or equal to the length of the first sub-pixel1031distal from the peripheral region101bin the pixel row direction X.

Thus, by decreasing the length of the first sub-pixel1031proximal to the peripheral region101bin the pixel row direction X, and increasing the length of the first sub-pixel1031proximal to the peripheral region101bin the pixel column direction Y, the area of the orthographic projection of the first sub-pixel1031proximal to the peripheral region101bon the base substrate101is equal to the area of the orthographic projection of the first sub-pixel1031distal from the peripheral region101bon the base substrate101. Therefore, the black matrix layer104may be provided with openings with the same area in the region where a plurality of first sub-pixels1031are disposed to ensure the display effect of the display device.

Further, by adjusting the lengths of the first sub-pixel1031proximal to the peripheral region101bin the pixel row direction X and in the pixel column direction Y, the shape of the first sub-pixel1031proximal to the peripheral region101bmay match with the shape of the boundary line of the irregularly-shaped display region101a, thereby ensuring the display effect of the display device.

In an exemplary embodiment, referring toFIG.10, in a first irregularly-shaped pixel103a, a length s1 of a first first sub-pixel1031ain the pixel column direction Y is greater than a length s2 of a second first sub-pixel1031bin the pixel column direction Y, and the length s2 of the second first sub-pixel1031bin the pixel column direction Y is greater than a length s3 of the third first sub-pixel1031cin the pixel column direction Y. That is, s1>s2>s3.

Further, referring toFIG.10, a shape of each of three first sub-pixels1031is a trapezoid. Each first sub-pixel1031has a first edge and a second edge that are parallel to each other, and the first edge is proximal to the peripheral region101brelative to the second edge. Referring toFIG.10, a length of the second edge of the first first sub-pixel1031ais equal to a length of the first edge of the second first sub-pixel1031b, and a length of the second edge of the second first sub-pixel1031bis equal to a length of the first edge of the third first sub-pixel1031c. Further, a length f1 of the first edge of the first first sub-pixel1031ais less than a length f2 of the second edge of the first first sub-pixel1031a. A length f2 of the first edge of the second first sub-pixel1031bis less than a length f3 of the second edge of the second first sub-pixel1031b. A length13of the first edge of the third first sub-pixel1031cis less than a length f4 of the second edge of the third first sub-pixel1031c. That is, f1<f2<f3<f4.

In some embodiments of the present disclosure, the orthographic projection of the opening formed by the black matrix layer104in the region where each first sub-pixel1031is disposed on the base substrate101is disposed in the region where the first sub-pixel1031is disposed. The orthographic projection of the opening formed by the black matrix layer104in the region where the first sub-pixel1031is disposed on the base substrate101is an opening region of the first sub-pixel1031. Further, the light emitted by the first sub-pixel1031may exit from the opening region.

FIG.13is a structural schematic diagram of an irregularly-shaped pixel according to an embodiment of the present disclosure. Referring toFIG.13, each irregularly-shaped sub-pixel1031may include a pixel electrode10311. An orthographic projection of the pixel electrode10311on a base substrate101may be disposed in the orthographic projection of the opening formed by the black matrix layer104in the region where the irregularly-shaped sub-pixel1031is disposed on the base substrate101. Optionally, the pixel electrode10311may be a hollowed-out electrode.

In an exemplary embodiment,FIG.13illustrates three irregularly-shaped sub-pixels1031. Referring toFIG.14, a black matrix layer104may have three openings b, and an orthographic projection of a pixel electrode10311in each irregularly-shaped sub-pixel1031on a base substrate101is disposed in an orthographic projection of the opening b on the base substrate101.

Optionally, a shape of the pixel electrode10311may be same as the shape of the opening formed by the black matrix layer104in the region where the first sub-pixel1031is disposed. In an exemplary embodiment, referring toFIG.7andFIG.13, the shape of the opening formed by the black matrix layer104in the region where the first sub-pixel1031is disposed is a trapezoid, and the shape of the pixel electrode10311is also a trapezoid.

In some embodiments of the present disclosure, referring toFIG.14, each irregularly-shaped sub-pixel1031may further include a common electrode10312and a liquid crystal layer10313. A pixel electrode10311, the common electrode10312, and the liquid crystal layer10313may be disposed on the same side of a base substrate101. The common electrode10312and the pixel electrode10311may be configured to drive liquid crystals in a liquid crystal layer10313to deflect.

In an exemplary embodiment, referring toFIG.14, the common electrode10312may be disposed on a side of the base substrate101, the pixel electrode10311may be disposed on a side, distal from the base substrate101, of the common electrode10312, and the liquid crystal layer10313may be disposed on a side, distal from the common electrode10312, of the pixel electrode10311. Optionally, the pixel electrode10311may be disposed on a side of the base substrate101, the common electrode10312may be disposed on a side, distal from the base substrate101, of the pixel electrode10311, and the liquid crystal layer10313may be disposed on a side, distal from the base substrate101, of the common electrode10312. Optionally, the pixel electrode10311may be disposed on a side of the base substrate101, the liquid crystal layer10313maybe disposed on a side, distal from the base substrate101, of the pixel electrode10311, and the common electrode10312may be disposed on a side, distal from the base substrate101of the liquid crystal layer10313.

FIG.15is a structural schematic diagram of another irregularly-shaped pixel according to an embodiment of the present disclosure. Referring toFIG.15, each irregularly-shaped sub-pixel1031may include a compensation capacitor10314connected to a pixel electrode10311, and an orthographic projection of the compensation capacitor10314on a base substrate101is disposed in a region outside an orthographic projection of an opening formed by a black matrix layer104in a region where the irregularly-shaped sub-pixel1031is disposed on the base substrate101. A shape of the compensation capacitor10314illustrated inFIG.15does not represent the actual shape of the compensation capacitor10314, and the compensation capacitor10314may actually be in any shape, as long as the orthographic projection of the compensation capacitor10314on the base substrate101is not overlapped with an orthographic projection of the pixel electrode10311on the base substrate101.

Because an area of an orthographic projection of the pixel electrode10311on the base substrate101is smaller than an area of an orthographic projection of the pixel electrode in another sub-pixel (e.g., a rectangular sub-pixel) on the base substrate101, a storage capacitance of the irregularly-shaped sub-pixel10311may be smaller than that of another sub-pixel. In some embodiments of the present disclosure, a compensation capacitor10314connected to the pixel electrode10311is disposed in the irregularly-shaped sub-pixel1031to reduce a difference of storage capacitance between the irregularly-shaped sub-pixel1031and another sub-pixel, thereby reducing a charging difference between the irregularly-shaped sub-pixel1031and the rectangular sub-pixel.

In some embodiments of the present disclosure, the compensation capacitor10314may include a first electrode and a second electrode. The first electrode may be disposed in a same layer as the pixel electrode10311, and the second electrode may be disposed in a same layer as the common electrode10312in the irregularly-shaped sub-pixel1031. A passivation layer (PVX) may be disposed between the first electrode and the second electrode. Optionally, the first electrode may be disposed in the same layer as a gate electrode in the first sub-pixel1031, and the second electrode may be disposed in the same layer as a source electrode and a drain electrode in the irregularly-shaped sub-pixel1031. A gate insulator (GI) may be disposed between the first electrode and the second electrode.

The first electrode and the second electrode may be non-hollowed-out plate electrodes. In the case that the storage capacitance of the irregularly-shaped sub-pixel1031is consistent with that of another sub-pixel, a wider bezel of the display device resulted from a larger space occupied by the first electrode and the second electrode may be avoided, and a screen-to-body ratio of the display device may not be affected.

Referring toFIGS.4to6,FIG.8andFIG.11, each rectangular pixel102may include a plurality of second sub-pixels1021. For example, the rectangular pixel102inFIGS.4to6.FIG.8andFIG.11includes three second sub-pixels1021, i.e., a first second sub-pixel1021a, a second second sub-pixel1021band a third second sub-pixel1021c. Each second sub-pixel1021may be a rectangular sub-pixel. Further, to ensure the consistent luminance of light emitted by each second sub-pixel1021, an area of an opening formed by the black matrix layer104in a region where each second sub-pixel1021is disposed may be equal.

Optionally, a shape of an opening formed by the black matrix layer104in the region where each second sub-pixel1021is disposed may be same as a shape of the second sub-pixel1021. That is, the opening formed by the black matrix layer104in the region where each second sub-pixel1021is disposed is a rectangle.

In some embodiments of the present disclosure, an arrangement direction of a plurality of second sub-pixels1021may be same that of the plurality of first sub-pixels1031. For example, referring toFIG.4andFIG.5, in the case that an arrangement direction of the plurality of first sub-pixels1031is the pixel row direction X, an arrangement direction of a plurality of second sub-pixels1021may also be the pixel row direction X. Referring toFIG.6, in the case that an arrangement direction of the plurality of first sub-pixels1031is the pixel column direction Y, the arrangement direction of a plurality of second sub-pixels1021may also be the pixel column direction Y.

FIG.16is a partial structural schematic diagram of the irregularly-shaped pixel illustrated inFIG.15. Referring toFIG.16, an irregularly-shaped pixel103may further include a transistor MO. A gate electrode of the transistor MO may be connected to a gate line, a source electrode of the transistor MO may be connected to a data line, and a drain electrode of the transistor MO may be connected to the pixel electrode10311.

FIG.17is a schematic diagram of a transistor and a common electrode according to an embodiment of the present disclosure. Referring toFIG.17, a capacitor in a display substrate10may include a storage capacitor Cs defined by a trace of the pixel electrode10311and a trace of a common electrode10312, a compensation capacitor C1defined by a first electrode and a second electrode, and a liquid crystal capacitor C1cdefined by the pixel electrode10311and the common electrode10312.

FIG.18is a partial structural schematic diagram of another display substrate according to an embodiment of the present disclosure. Referring toFIG.18, a display substrate10may further include a signal line105. The signal line105may be connected to each pixel in the display substrate10. For example, referring toFIG.18, the signal line15may be connected to each rectangular pixel102and each of the at least one irregularly-shaped pixel103in the display substrate10.

Referring toFIG.18, the signal line105may include a plurality of data lines1051and a plurality of gate lines1052.FIG.18illustrates nine data lines1051and two gate lines1052. Each data line1051may be connected to a column of sub-pixels, and each gate line1052may be connected to a row of sub-pixels.

In a possible circumstance, referring toFIG.18, a plurality of sub-pixels in each pixel are all arranged in a pixel row direction X. Since a length of the irregularly-shaped pixel103in the pixel row direction X is different from a length of the rectangular pixel102in the pixel row direction X, at least one of the plurality of data lines1051may be in a bent shape to connect the data lines1051to the first sub-pixel1031in the irregularly-shaped pixel103and the second sub-pixel1021in the rectangular pixel102. Further, at least one of the column of sub-pixels connected to the bent-shaped data lines1051is an irregularly-shaped sub-pixel.

In another possible circumstance, referring toFIG.19, a plurality of sub-pixels in each pixel are all arranged in a pixel column direction Y. Because a length of the irregularly-shaped pixel103in the pixel column direction Y is different from a length of a rectangular pixel102in the pixel column direction Y, at least one of a plurality of gate lines1052may be in a bent shape to connect the gate lines1052to a first sub-pixel1031in the irregularly-shaped pixel103and a second sub-pixel1021in the rectangular pixel102. Further, at least one of a row of sub-pixels connected to the bent-shaped gate lines1052is an irregularly-shaped sub-pixel.FIG.19illustrates two data lines1051and nine gate lines1052.

In summary, the embodiments of the present disclosure provide a display substrate. The display substrate includes at least one irregularly-shaped pixel. The shape of each of the at least one irregularly-shaped pixel proximal to the boundary line of a side of the peripheral region matches with the shape of the boundary line of the irregularly-shaped display region in the base substrate, such that the irregularly-shaped pixel does not go beyond the irregularly-shaped display region of the display substrate, a narrow bezel of the display substrate is realized conveniently, and the image displayed at the boundary line of the irregularly-shaped display region is prevented from being in a zigzag shape, thereby ensuring the display effect of the display device. Further, because the area of the orthographic projection of the irregularly-shaped pixel on the base substrate is smaller than the area of the orthographic projection of the rectangular pixel on the base substrate, the area of the opening formed by the black matrix layer in the region where each rectangular pixel is disposed is larger than the area of the opening formed in the region where any irregularly-shaped pixel is disposed, such that the smooth transition of luminance of light emitted by the irregularly-shaped pixel and the rectangular pixel is ensured, and the luminance uniformity of the display device is better.

FIG.20is a structural schematic diagram of a display device according to an embodiment of the present disclosure. Referring toFIG.20, the display device may further include a driving circuit20and the display substrate10according to the above embodiment. The driving circuit20may be connected to pixels (a rectangular pixel102and an irregularly-shaped pixel103) in the display substrate to provide a driving signal for the pixels.

Referring toFIG.20, the driving circuit20may include a gate driving circuit201and a source driving circuit202. The gate driving circuit201may be connected to each gate line1052to provide a gate driving signal for each gate line1052. Each gate line1052may be connected to a row of sub-pixels. The source driving circuit202may be connected to each data line1051to provide a data signal for each data line1051. Each data line1051may be connected to a column of sub-pixels.

FIG.21is a structural schematic diagram of another display device according to an embodiment of the present disclosure. Referring toFIG.21, the display device may include a backlight source30. The backlight source30may be disposed on a side, distal from a rectangular pixel102and an irregularly-shaped pixel103, of a base substrate101. The backlight source30may be configured to provide backlight for the display substrate10.

It is to be noted that, the partial schematic diagrams ofFIG.18andFIG.19are both the schematic diagrams of the upper left corner of the display substrate in the display device inFIG.20. Referring toFIG.20, boundary lines of an upper right corner, a lower left corner and a lower right corner of the irregularly-shaped display region of the display substrate10in the display device are all arcs. Therefore, the schematic diagram of the upper right corner, the lower left corner and the lower right corner of the display substrate may refer toFIG.18andFIG.19, and is not repeated in the embodiments of the present disclosure.

Optionally, the display device may be any product or component with a display function, such as a liquid crystal display device, electronic paper, a mobile phone, a tablet computer, a television, a monitor, a laptop, a digital photo frame or a navigator.

Described above are merely optional embodiments of the present disclosure, but are not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements and the like made within the spirit and principles of the present disclosure should be included within the scope of protection of the present disclosure.