CN108766253B

CN108766253B - Display panel and display device

Info

Publication number: CN108766253B
Application number: CN201810403112.XA
Authority: CN
Inventors: 谢畅; 敦栋梁
Original assignee: Shanghai AVIC Optoelectronics Co Ltd
Current assignee: Shanghai AVIC Optoelectronics Co Ltd
Priority date: 2018-04-28
Filing date: 2018-04-28
Publication date: 2021-08-24
Anticipated expiration: 2038-04-28
Also published as: CN108766253A

Abstract

The invention discloses a display panel and a display device, comprising: the display area comprises a special-shaped boundary and an edge transition area adjacent to the special-shaped boundary; the display area further comprises a plurality of sub-pixels; the plurality of sub-pixels are arranged in pixel rows along a first direction and arranged in pixel columns along a second direction; the first direction is vertical to the second direction; the edge transition area comprises at least one first pixel row, the first pixel row at least comprises a first sub-pixel and a second sub-pixel, the penetration rates of the first sub-pixel and the second sub-pixel are different, and the second sub-pixel is located between the first sub-pixel and the special-shaped boundary; the transmittance of the first sub-pixel is greater than that of the second sub-pixel. The display panel effectively improves the display sawtooth phenomenon at the special-shaped boundary and improves the display effect of the display panel.

Description

Display panel and display device

Technical Field

The present invention relates to the field of display technologies, and in particular, to a display panel and a display device.

Background

People are increasingly using rich visual information in production and life, and thus display technology plays a very important role in today's human society.

With the development of scientific technology, display technology is rapidly advancing towards full-scale display. The display area in the display panel in the prior art is not in a rectangular structure, corner design often exists, the display area is matched by adding or reducing the number of pixels at the corner of the display area in the display panel, but the boundary line of the pixels and the display area cannot be completely matched, so that the sawtooth feeling is obvious when the corner of the display panel is in display.

Therefore, it is an urgent need in the art to provide a display panel and a display device, which can improve the jaggy at the corner when the display area displays, and improve the display effect at the corner in the display area.

Disclosure of Invention

In view of the foregoing, the present invention provides a display panel and a display device.

The present invention provides a display panel including: the display area comprises a special-shaped boundary and an edge transition area adjacent to the special-shaped boundary; the display area further comprises a plurality of sub-pixels; the plurality of sub-pixels are arranged in pixel rows along a first direction and arranged in pixel columns along a second direction; the first direction is vertical to the second direction; the edge transition area comprises at least one first pixel row, the first pixel row at least comprises a first sub-pixel and a second sub-pixel, the penetration rates of the first sub-pixel and the second sub-pixel are different, and the second sub-pixel is located between the first sub-pixel and the special-shaped boundary; the transmittance of the first sub-pixel is greater than that of the second sub-pixel.

The invention provides a display device which comprises a display panel provided by the invention.

Compared with the prior art, the display panel and the display device provided by the invention at least realize the following beneficial effects:

the display area comprises an edge transition area adjacent to the special-shaped boundary, the edge transition area comprises at least one first pixel row, in the first pixel row, the brightness of a first sub-pixel far away from the special-shaped boundary is larger than that of a second sub-pixel close to the special-shaped boundary, the edge position adjacent to the special-shaped boundary is shielded by a second black matrix and is opaque, the brightness is almost zero, the brightness difference between the brightness of the edge position and the brightness of the sub-pixel close to the special-shaped boundary can be reduced by reducing the brightness of the sub-pixel close to the special-shaped boundary, and the display sawtooth phenomenon close to the special-shaped boundary in the edge transition area is improved.

Of course, it is not necessary for any product in which the present invention is practiced to achieve all of the above-described technical effects simultaneously.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention;

FIG. 2 is a schematic view of a partial structure of the display panel shown in FIG. 1 including a shaped boundary and an edge transition region;

fig. 3 is a schematic diagram of an alternative implementation of an electrode structure of a display panel according to an embodiment of the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 3;

fig. 5 is a schematic diagram of another alternative implementation of the electrode structure of the display panel according to the embodiment of the present invention;

fig. 6 is a schematic diagram of yet another alternative implementation of the electrode structure of the display panel according to the embodiment of the present invention;

FIG. 7 is a schematic diagram of a partial structure of another display panel including a special-shaped border and an edge transition region according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of an alternative embodiment of the electrode structure in the first row of pixels of FIG. 7;

FIG. 9 is a schematic diagram of an alternative embodiment of the electrode structure in the first row of pixels of FIG. 7;

FIG. 10 is an enlarged view of portion B1 of FIG. 9;

FIG. 11 is an enlarged view of portion B2 of FIG. 9;

FIG. 12 is a schematic diagram of yet another alternative embodiment of the electrode structure in the first row of pixels of FIG. 7;

fig. 13 is a cross-sectional view of another display panel according to an embodiment of the present invention;

fig. 14 is a schematic plan view of the color filter substrate in fig. 13;

fig. 15 is a schematic structural diagram of a display device according to an embodiment of the present invention.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

The present invention relates to a display panel, comprising: the liquid crystal display panel comprises an array substrate, a color film substrate and a liquid crystal layer positioned between the array substrate and the color film substrate. The array substrate comprises a pixel electrode, a common electrode and thin film transistors arranged in an array mode, and the color film substrate comprises a second black matrix and a color resistance layer. An electric field for controlling the deflection of liquid crystal molecules can be formed between the pixel electrode and the common electrode, light irradiates a liquid crystal molecular layer after penetrating through the array substrate, is emitted to the color film substrate after the deflection of the liquid crystal molecules, and can be emitted by the light of red, green and blue pigments on the surface of the display panel after passing through the color resistors of the red, green and blue colors on the color film substrate, and finally pattern display is formed on the surface of the display panel.

Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention, and fig. 2 is a schematic structural diagram of the display panel shown in fig. 1 including a special-shaped boundary and an edge transition region. The present embodiment provides a display panel including: a display area AA comprising a shaped boundary a1, the display area AA comprising an edge transition region 10 adjacent to the shaped boundary a 1;

the display area AA further includes a plurality of sub-pixels 20;

the plurality of sub-pixels 20 are arranged in pixel rows 201 along a first direction a and in pixel columns 202 along a second direction b; the first direction a is vertical to the second direction b;

the edge transition zone 10 comprises at least one first pixel row 203, the first pixel row 203 comprises at least a first sub-pixel 21 and a second sub-pixel 22 with different penetration rates, and the second sub-pixel 22 is located between the first sub-pixel 21 and the irregular boundary a 1;

the transmittance of the first sub-pixel 21 is greater than the transmittance of the second sub-pixel 22.

Specifically, with continuing reference to fig. 1 and fig. 2, the display panel provided in this embodiment has at least one irregular boundary a1, where the irregular boundary a1 may be a curved line segment, an arc line segment, or an oblique line segment, and in fig. 1 and fig. 2, only the irregular boundary a1 is taken as an example to illustrate, and optionally, the display area AA includes two or more irregular boundaries a1, which is not limited in this embodiment.

The sub-pixels 20 in the display area AA are regularly arranged, in order to match the irregular boundary a1, in the edge transition area 10, the sub-pixels 20 near the irregular boundary a1 are arranged in a step manner, and the edge position 30 adjacent to the irregular boundary a1 cannot be provided with a complete sub-pixel due to space limitation, and is shielded by providing a second black matrix, so that when the display panel displays, if the sub-pixels 20 all emit light normally, the light and shade difference near the irregular boundary a1 is obvious, and the jaggy feeling near the irregular boundary a1 in the edge transition area 10 is obvious, which affects the display effect of the display panel.

The edge transition region 10 includes at least one first pixel row 203, the first pixel row 203 includes at least a first sub-pixel 21 and a second sub-pixel 22 with different transmittances, the second sub-pixel 22 is located between the first sub-pixel 21 and the special-shaped boundary a1, the transmittance of the first sub-pixel 21 is greater than the transmittance of the second sub-pixel 22, that is, in the display panel provided by the present invention, the luminance of the first sub-pixel 21 is greater than the luminance of the second sub-pixel 22, and the second sub-pixel 22 is located between the first sub-pixel 21 and the special-shaped boundary a1, that is, in the edge transition region 10, there are sub-pixels 20 with different transmittances, and in the first pixel row 203, the luminance of the first sub-pixel 21 far from the special-shaped boundary a1 is greater than the luminance of the second sub-pixel 22 near the special-shaped boundary a1, the edge position 30 adjacent to the zero special-shaped boundary a1 is blocked by a black matrix, and the luminance is almost opaque, by reducing the luminance of the sub-pixel 20 near the shaped boundary a1, the difference between the luminance of the edge location 30 and the luminance of the sub-pixel 20 near the shaped boundary a1 can be reduced, improving the jaggy display near the shaped boundary a1 in the edge transition region 10.

With continued reference to fig. 2, the edge transition region 10 includes a plurality of first pixel rows 203, the plurality of first pixel rows 203 are arranged at intervals, in the first pixel rows 203, the luminance of the first sub-pixel 21 far away from the special-shaped boundary a1 is greater than the luminance of the second sub-pixel 22 close to the special-shaped boundary a1, the edge position 30 adjacent to the special-shaped boundary a1 is shielded by the second black matrix and is opaque, the luminance is almost zero, the luminance difference between the luminance of the edge position 30 and the luminance of the sub-pixel 20 close to the special-shaped boundary a1 can be reduced by reducing the luminance of the sub-pixel 20 close to the special-shaped boundary a1, and the arrangement of the plurality of first pixel rows 203 improves the jaggy phenomenon displayed in the edge transition region 10 close to the special-shaped boundary a 1. It should be noted that, in fig. 2, only the edge transition region 10 includes a plurality of first pixel rows 203, and the plurality of first pixel rows 203 are arranged at intervals as an example for illustration; optionally, the plurality of first pixel rows 203 in the edge transition region 10 may be irregularly arranged; optionally, the first pixel row 203 may be disposed in all the pixel rows 201 in the edge transition region 10, and this embodiment is not described in detail again.

In the embodiment, the names of the first sub-pixel 21 and the second sub-pixel 22 in the first pixel row 203 are only for illustrating that the sub-pixels 20 with different penetration rates are included near the irregular boundary a1, and the specific positions of the first sub-pixel 21 and the second sub-pixel 22 are not limited; the second sub-pixel 22 is located between the first sub-pixel 21 and the shaped boundary a1, illustrating that there may be only one first sub-pixel 21 between the first sub-pixel 21 and the shaped boundary a 1; or, there are at least two sub-pixels 20 between the first sub-pixel 21 and the irregular boundary a1, and the penetration rate is less than that of the first sub-pixel 21, and the two sub-pixels 20 include the second sub-pixel 22; alternatively, in the first pixel row 203 including a plurality of sub-pixels 20 different in transmittance, the transmittance of the sub-pixels 20 closer to the irregular boundary a1 is lower.

With continued reference to fig. 2, optionally, wherein the first pixel row 203 comprises at least one first sub-pixel 21 and at least one second sub-pixel 22;

there is at least one second sub-pixel 22 between the first sub-pixel row 203, the shaped boundary a1 and the first sub-pixel 21 adjacent thereto.

Specifically, with continued reference to fig. 2, the number of the first sub-pixels 21 and the second sub-pixels 22 in the first pixel row 203 may be one, that is, the first pixel row 203 may include a plurality of sub-pixels 20 with different penetration rates, and the penetration rate of the sub-pixel 20 closer to the irregular boundary a1 is lower; the number of the first sub-pixels 21 or/and the second sub-pixels 22 in the first pixel row 203 may be at least two, that is, the first pixel row 203 may include at least two sub-pixels 20 with different transmittances, and the number of the sub-pixels 20 with the same transmittance is at least two, so that the display jaggy phenomenon in the edge transition region 10 near the irregular boundary a1 is improved, and meanwhile, during manufacturing, the process may be adjusted in the first pixel row 203 to reduce the types of the sub-pixels 20 with different transmittances, so that the process is simpler.

Referring to fig. 2 to 4, fig. 3 is a schematic diagram of an alternative implementation of an electrode structure of a display panel according to an embodiment of the present invention, and fig. 4 is an enlarged view of a portion a of fig. 3. Optionally, wherein,

the area of each sub-pixel 20 in the edge transition region 10 is the same, the sub-pixel 20 includes an electrode 40, the electrode 40 is comb-shaped and includes at least one comb tooth 41, and at least one comb tooth 41 in the electrode 40 includes at least one bending portion 43;

the electrode 40 is a pixel electrode and/or a common electrode.

Specifically, with reference to fig. 2 to 4, the initial alignment direction of the liquid crystal molecules 50 is 0 °, an electric field can be generated after a voltage is applied to the electrode 40, the electric field generated by the electrode 40 can control the deflection of the liquid crystal molecules 50, the liquid crystal molecules on both sides of the boundary rotate with the corner of the bending portion 43 along the first direction a as a boundary, the rotation angle of the liquid crystal molecules near the boundary is very small or does not rotate, and the transmittance of light near the boundary is relatively low, so that a dark band region 60 is generated, the larger the area of the dark band region 60 generated by the electrode 40 in the sub-pixel 20 is, the smaller the light transmittance of the liquid crystal layer in the corresponding sub-pixel 20 is, and the smaller the luminance of the corresponding sub-pixel 20 is.

In the display panel provided in this embodiment, the area of each sub-pixel 20 located in the edge transition region 10 is the same, after the same voltage is applied, the area of the dark band region 60 generated by the electrode 40 in the first sub-pixel 21 is different from the area of the dark band region 60 generated by the electrode 40 in the second sub-pixel 22, and the areas of the first sub-pixel 21 and the second sub-pixel 22 are the same, so that the transmittance of the first sub-pixel 21 is different from that of the second sub-pixel 22, the area of the dark band region 60 generated by the electrode 40 in the second sub-pixel 22 is larger than that of the dark band region 60 generated by the electrode 40 in the first sub-pixel 21, and the transmittance of the first sub-pixel 21 is larger than that of the second sub-pixel 22.

In fig. 3, only one comb tooth 41 is included in the electrode 40, and one bent portion 43 is included in one comb tooth 41 in the electrode 40, alternatively, at least two bent portions 43 may be included in the comb tooth 41 in the electrode 40, which is not limited in this embodiment. Taking the electrode 40 as an example of a pixel electrode, specifically, when the pixel electrodes of all the sub-pixels only include one comb tooth 41, in the edge transition region 10, the number of the bending portions 43 of the comb teeth 41 of the pixel electrode gradually increases along the direction close to the special-shaped boundary in the sub-pixels, so that the brightness of the edge transition region 10 gradually becomes darker in the direction close to the special-shaped boundary, and thus the edge jaggy is improved.

Referring to fig. 5, fig. 5 is a schematic diagram of another alternative implementation of the electrode structure of the display panel according to the embodiment of the present invention. Optionally, the electrode 40 includes at least two comb teeth 41 and a slit 42 between two adjacent comb teeth 41.

In fig. 5, only the electrode 40 includes two comb teeth 41, and one comb tooth 41 in the electrode 40 includes one bent portion 43 for illustration, alternatively, the electrode 40 may further include more than two comb teeth 41, and at least one bent portion 43 is included on at least two comb teeth 41 in the electrode 40, which is not limited in this embodiment.

Referring to fig. 6, fig. 6 is a schematic diagram of another alternative implementation of the electrode structure of the display panel according to the embodiment of the present invention. Optionally, wherein each comb tooth 41 in the electrode 40 comprises at least one bend 43.

Specifically, with continued reference to FIG. 6, each comb tooth 41 of the electrode 40 includes a bend 43, and a dark band region 60 is formed at the bend 43 upon application of a voltage to the electrode 40.

In the embodiments of the present invention, the areas of the dark band regions generated by the sub-pixel inner electrodes after the same voltage is applied are different by adjusting the sub-pixel inner electrode structures, so as to realize the difference in the sub-pixel transmittance, only some optional embodiments of the electrode structures of the display panel provided by the present invention are exemplarily described below, it should be noted that electrode structures not listed in other embodiments of the present invention are needed, but different technical solutions for realizing the sub-pixel inner transmittance by adjusting the electrode structures in the sub-pixels in the same manner as the present invention are within the scope of protection of the present patent.

Referring to fig. 7, fig. 7 is a schematic partial structure diagram of another display panel according to an embodiment of the present invention, which includes a special-shaped border and an edge transition region. Optionally, the first pixel row 203 at least includes a first sub-pixel 21, a second sub-pixel 22 and a third sub-pixel 23 with different penetration rates, and the third sub-pixel 23 is located between the second sub-pixel 22 and the irregular boundary a 1;

the transmittance of the first sub-pixel 21, the second sub-pixel 22 and the third sub-pixel 23 decreases in sequence.

Specifically, with continuing reference to fig. 7, the present invention provides a display panel, in which the transmittances of the first sub-pixel 21, the second sub-pixel 22 and the third sub-pixel 23 in the first pixel row 203 are sequentially decreased, the luminances of the first sub-pixel 21, the second sub-pixel 22 and the third sub-pixel 23 are sequentially decreased, the third sub-pixel 23 is located between the second sub-pixel 22 and the irregular boundary a1, that is, there are sub-pixels with different transmittances in the edge transition region 10, and in the first pixel row 203, the luminance of the first sub-pixel 21 far from the irregular boundary a1 is greater than the luminance of the third sub-pixel 23 near the irregular boundary a1, the edge position 30 adjacent to the irregular boundary a1 is opaque due to the shielding of the second black matrix, and the luminance is almost zero, and by decreasing the luminance of the sub-pixel 20 near the irregular boundary a1, the luminance of the edge position 30 and the luminance of the sub-pixel 20 near the irregular boundary a1 can be decreased, the sawtooth phenomenon displayed in the edge transition area 10 close to the special-shaped boundary A1 is improved; meanwhile, the luminance of the second sub-pixel 22 is between the luminance of the first sub-pixel 21 and the luminance of the third sub-pixel 23, that is, the second sub-pixel 22 plays a role of transition between the luminance of the first sub-pixel 21 and the third sub-pixel 23, so that the luminance reduction from the first sub-pixel 21 to the third sub-pixel 23 in the first pixel row 203 is transited, and the display jaggy effect in the weakened edge transition area 10 near the irregular boundary a1 is better.

Each of the sub-pixels 20 in the first pixel row 203 has the same area, and after the same voltage is applied, the sum of the areas of the dark bands generated by the electrodes of the first pixel 21 is S1, the sum of the areas of the dark bands generated by the electrodes of the second pixel 22 is S2, and the sum of the areas of the dark bands generated by the electrodes of the third pixel 23 is S3; wherein 0 < S1 < S2 < S3.

With continued reference to fig. 5, optionally, wherein the bent portion 43 includes a first bent portion 431;

the first bent portion 431 includes a first strip-shaped sub-portion 4311 extending along the third direction c and a second strip-shaped sub-portion 4312 extending along the fourth direction d, and the first strip-shaped sub-portion 4311 and the second strip-shaped sub-portion 4312 intersect to form a corner 4313;

the third direction c and the fourth direction d intersect.

Specifically, with continued reference to fig. 5, the first strip-shaped subsection 4311 and the second strip-shaped subsection 4312 intersect to form a corner 4313, and when a voltage is applied to the electrode 40, the corner 4313 in the first bending part 431 forms a dark band 60, and the dark band 60 extends along a first direction a, wherein a third direction c intersects with a fourth direction d, and the third direction c and the fourth direction d both pass through an intersection of the first direction a and the second direction b.

Referring to fig. 7 and 8, fig. 8 is a schematic diagram of an alternative embodiment of the electrode structure in the first pixel row of fig. 7. Optionally, wherein each comb tooth 41 of the first sub-pixel 21 includes N1 first bending parts 431, each comb tooth 41 of the second sub-pixel 22 includes N2 first bending parts 431, and each comb tooth 41 of the third sub-pixel 23 includes N3 first bending parts 431; wherein the content of the first and second substances,

n2 is more than or equal to 1 and less than or equal to N1 and less than or equal to N3, and N1, N2 and N3 are all positive integers.

Specifically, with reference to fig. 7, in the display panel provided in the embodiment of the present invention, the first pixel row 203 includes a first sub-pixel 21, a second sub-pixel 22, and a third sub-pixel 23;

with continued reference to FIG. 8, after the same voltage is applied, each of the first bent portions 431 of the two comb teeth 41 of the electrode 40 in the first sub-pixel 21 includes one first bent portion 431, and a dark band 60 is formed between the first bent portions 431 of the two comb teeth 41 of the electrode 40; each comb tooth 41 in the electrode 40 in the second sub-pixel 22 comprises two first bent parts 431, and a dark band region 60 is formed between the first bent parts 431 corresponding to the two comb teeth 41 in the electrode 40; each of the comb teeth 41 of the electrode 40 in the third sub-pixel 23 includes three first bent portions 431, and a dark band region 60 is formed between the first bent portions 431 corresponding to two comb teeth 41 of the electrode 40.

The total area of the dark band regions 60 formed by the electrodes 40 in the first sub-pixel 21, the second sub-pixel 22 and the third sub-pixel 23 gradually increases, and the transmittance of the first sub-pixel 21, the second sub-pixel 22 and the third sub-pixel 23 gradually decreases.

In the present embodiment, the total area of the dark band regions 60 generated by the electrode 40 in the sub-pixel 20 after the same voltage is applied is different by changing the bending portion 43 in the electrode 40 in the sub-pixel 20, so as to realize the difference of the transmittance of the sub-pixel 20. In this embodiment, only N1 is 1, N2 is 2, and N3 is 3 are taken as examples, and optionally, N1 < N2 < N3 is 1 ≦ N1, and N1, N2, and N3 are all positive integers, which is not limited in this embodiment.

Referring to fig. 7 and 9-11, fig. 9 is a schematic view of another alternative embodiment of the electrode structure in the first pixel row in fig. 7, fig. 10 is an enlarged view of a portion B1 in fig. 9, and fig. 11 is an enlarged view of a portion B2 in fig. 9. Optionally, wherein the electrode 40 comprises at least one first comb tooth 411 and at least one second comb tooth 412;

each comb tooth 41 of the first subpixel 21 includes n1 first bent portions 431, and the corner 4313 on the first comb tooth 411 is on a straight line along the first direction a with the corner 4313 on the second comb tooth 412 corresponding thereto;

each comb tooth 41 of the second subpixel 22 includes n1 first bent portions 431, and the corner 4313 on the first comb tooth 411 and the corner 4313 on the second comb tooth 412 corresponding thereto are not on a straight line along the first direction a;

each comb tooth 41 of the third subpixel 23 includes n2 first bent portions 431, and the corner 4313 on the first comb tooth 411 is on a straight line along the first direction a with the corner 4313 on the second comb tooth 412 corresponding thereto;

wherein 1 is not more than n1 and less than n2, and n1 and n2 are positive integers.

with continued reference to fig. 9-11, the first bending portion 431 of the first sub-pixel 21, the second sub-pixel 22 and the third sub-pixel 23 in the first pixel row 203 each include a first strip-shaped sub-portion 4311 extending along the third direction c and a second strip-shaped sub-portion 4312 extending along the fourth direction d, the first strip-shaped sub-portion 4311 and the second strip-shaped sub-portion 4312 intersect to form a corner 4313, wherein the third direction c intersects with the fourth direction d, and the third direction c and the fourth direction d each pass through an intersection of the first direction a and the second direction b.

After the same voltage is applied, each comb tooth 41 of the electrode 40 of the first sub-pixel 21 includes two first bending portions 431, and a corner 4313 on the first comb tooth 411 and a corner 4313 on the corresponding second comb tooth 412 are formed therebetweenA straight line s1 is drawn,and the straight line is parallel to the first direction a, a dark band region 60a is formed between the first bending portions 431 corresponding to the two comb teeth 41 in the electrode 40; each comb tooth 41 of the second sub-pixel 22 includes two first bending portions 431, and a straight line s2 is formed between the corner 4313 on the first comb tooth 411 and the corresponding corner 4313 on the second comb tooth 412, and the straight line is not parallel to the first direction a, that is, as shown in fig. 11, the straight line s2 intersects with the first direction a, so that a dark band region 60b is formed between the corresponding first bending portions 431 of the two comb teeth 41 in the electrode 40; each comb tooth 41 of the third subpixel 23 includes three first bent portions 431, and a straight line is formed between the corner 4313 on the first comb tooth 411 and the corner 4313 on the corresponding second comb tooth 412, and the straight line is parallel to the first direction a (the first bent portion 431 of the comb tooth 41 of the third subpixel 23 is similar to the first subpixel 21 and is not shown in an enlarged view), so that a dark band region 60a is formed between the first bent portions 431 of the electrode 40 corresponding to the two comb teeth 41.

The area of the dark band region 60a is smaller than that of the dark band region 60b, the total area of the dark band regions 60 formed by the electrodes 40 in the first, second, and

third subpixels

21, 22, and 23 gradually increases, and the transmittance of the first, second, and

third subpixels

21, 22, and 23 gradually decreases.

Fig. 9-11 illustrate the electrode 40 including two comb teeth 41, and the corresponding corners 4313 between the comb teeth 41 in the electrode 40 may form a straight line, but the embodiment of the present invention is not limited thereto, for example, alternatively, the electrode 40 includes more than two comb teeth 41, and in the electrodes 40 of the first and third sub-pixels 21 and 23, a straight line is formed between the corresponding corners 4313 of each comb tooth 41, and the straight line is parallel to the first direction a, a dark band region 60a is formed between the corresponding first bent portions 431 between the respective comb teeth 41 in the electrode 40, and in the electrode 40 of the second sub-pixel 21, a straight line is formed between the corresponding corners 4313 of each comb tooth 41, and the straight line is not parallel to the first direction a, a dark band region 60b is formed between the corresponding first bent portions 431 between the respective comb teeth 41 in the electrode 40.

Optionally, the electrode 40 includes more than two comb teeth 41, in the electrode 40 of the first sub-pixel 21 and the third pixel 23, a straight line is formed between the corners 4313 corresponding to each comb tooth 41, and the straight line is parallel to the first direction a, so that a dark band region 60a is formed between the corresponding first bending portions 431 between the comb teeth 41 in the electrode 40, and in the electrode 40 of the second sub-pixel 21, a straight line cannot be formed between the corners 4313 corresponding to each comb tooth 41, so that a dark band region 60b is formed between the corresponding first bending portions 431 between the comb teeth 41 in the electrode 40, which is not limited in this embodiment.

In the present embodiment, the total area of the dark band regions 60 generated by the electrode 40 in the sub-pixel 20 after the same voltage is applied is different by changing the bending portion 43 in the electrode 40 in the sub-pixel 20, so as to realize the difference of the transmittance of the sub-pixel 20. In this embodiment, n1 is 2, n2 is 3, and optionally, 1 ≦ n1 < n2, and n1 and n2 are positive integers, which is not limited in this embodiment.

Referring to fig. 7 and 12, fig. 12 is a schematic diagram of still another alternative embodiment of the electrode structure in the first pixel row of fig. 7. Optionally, wherein the bent portion 43 includes a second bent portion 432 and a third bent portion 433;

the second bending portion 432 includes a first strip-shaped sub-portion 4321 extending along the third direction c, a third strip-shaped sub-portion 4322 extending along the fifth direction e, a fourth strip-shaped sub-portion 4333 extending along the sixth direction f, and a second strip-shaped sub-portion 4324 extending along the fourth direction d, where the first strip-shaped sub-portion 4321 and the third strip-shaped sub-portion 4322, the third strip-shaped sub-portion 4322 and the fourth strip-shaped sub-portion 4323, and the fourth strip-shaped sub-portion 4323 and the second strip-shaped sub-portion 4324 intersect to form a corner 4325;

the third bending portion 433 includes a first strip subsection 4331 extending along the third direction c and a second strip subsection 4332 extending along the fourth direction d, where the first strip subsection 4331 and the second strip subsection 4332 intersect to form a corner 4333;

the third direction c, the fourth direction d, the fifth direction e and the sixth direction f all pass through the intersection point of the first direction a and the second direction b;

each comb tooth 41 of the first subpixel 21 includes n3 third bent portions 433, each comb tooth 41 of the second subpixel 22 includes n3 second bent portions 432, and the comb tooth 41 of the third subpixel 23 includes n4 third bent portions 433; wherein the content of the first and second substances,

n3 is more than or equal to 1 and less than n4, and n3 and n4 are both positive integers.

Specifically, the bent portion 43 includes a second bent portion 432 and a third bent portion 433, and with continued reference to fig. 10, after a voltage is applied to the electrode 40, three corners 4325 in the second bent portion 432 form a dark band region 60, and the dark band region 60 extends along the first direction a; when a voltage is applied to the electrode 40, the corner 4333 in the third bent portion 433 forms a dark band region 60, and the dark band region 60 extends along the first direction a.

With continued reference to fig. 7, in the display panel provided in the embodiment of the invention, the first pixel row 203 includes a first sub-pixel 21, a second sub-pixel 22 and a third sub-pixel 23;

with continued reference to FIG. 12, after the same voltage is applied, each comb tooth 41 of the electrode 40 in the first sub-pixel 21 includes two third bending portions 433, so that a dark band 60c is formed between the corresponding third bending portions 433 of the two comb teeth 41 of the electrode 40; each comb tooth 41 in the electrode 40 in the second sub-pixel 22 comprises two second bent portions 432, and a dark band region 60d is formed between the corresponding second bent portions 432 of the two comb teeth 41 in the electrode 40; each comb tooth 41 of the electrode 40 in the third sub-pixel 23 includes three third bending portions 433, and a dark band region 60c is formed between the corresponding third bending portions 433 of the two comb teeth 41 of the electrode 40.

The area of the dark band region 60c is smaller than that of the dark band region 60d, and the total area of the dark band regions 60 formed by the electrodes 40 in the first, second, and third sub-pixels 21, 22, and 23 gradually increases, the transmittance of the first, second, and third sub-pixels 21, 22, and 23 gradually decreases.

In the present embodiment, the total area of the dark band regions 60 generated by the electrode 40 in the sub-pixel 20 after the same voltage is applied is different by changing the bending portion 43 in the electrode 40 in the sub-pixel 20, so as to realize the difference of the transmittance of the sub-pixel 20. In this embodiment, only n3 is 2, n4 is 3, and optionally, 1 ≦ n3 < n4, and n3 and n4 are positive integers, which is not specifically limited in this embodiment.

It can be understood that, in the embodiment, the number and the positions of the second bending portion 432 or/and the third bending portion 433 provided in each comb tooth 41 on the respective electrodes 40 of the first sub-pixel 22, the second sub-pixel 22, and the third sub-pixel 23 are not limited, and only the total area of the dark band 60 formed by the electrodes 40 in the first sub-pixel 21, the second sub-pixel 22, and the third sub-pixel 23 needs to be gradually increased, which is not described in detail herein.

Referring to fig. 13 and 14, fig. 13 is a cross-sectional view of another display panel according to an embodiment of the present invention, and fig. 14 is a schematic plan view of a color filter substrate in fig. 13. Optionally, the sub-pixels 20 in the first pixel row 203 further include a first black matrix 90, wherein the first black matrix includes a black pigment and an organic compound.

Specifically, with continued reference to fig. 13 and fig. 14, the display panel provided in the embodiment of the present invention includes: the liquid crystal display panel comprises an array substrate 100, a color film substrate 200 and a liquid crystal layer 300 positioned between the array substrate 100 and the color film substrate 200. The display panel comprises sub-pixels arranged in an array, the array substrate 100 comprises pixel electrodes 24 corresponding to the sub-pixels arranged in the array, the color film substrate 200 comprises color resistors 70 corresponding to the sub-pixels arranged in the array, a second black matrix 80 arranged between the adjacent color resistors 70 and a corresponding edge transition area 10, a first black matrix 90 is arranged on the color film substrate 200, and the vertical projection of the first black matrix 90 on the color film substrate 200 at least partially covers the corresponding color resistors 70.

In fig. 14, it is only illustrated that the vertical projection of the first black matrix 90 on the color filter substrate 200 completely covers the corresponding color resistor 70, because the vertical projection of the first black matrix 90 on the color filter substrate 200 completely covers the corresponding color resistor 70, in the corresponding edge transition area 10 in fig. 14, the first black matrix 90 completely covers the corresponding color resistor 70, optionally, the vertical projection of the first black matrix 90 on the color filter substrate 200 may partially cover the corresponding color resistor 70, and this embodiment is not repeated here. At least a part of the first black matrix 90 has a higher transmittance than the second black matrix 80.

The first black matrix 90 includes a black pigment and an organic compound, and the optical density of the first black matrix 90 is affected by the black pigment, and the greater the concentration of the black pigment in the first black matrix 90, the greater the optical density thereof, the smaller the transmittance of the corresponding sub-pixel 20.

In the embodiment of the present invention, the transmittance of the sub-pixels 20 after the same voltage is applied is realized by adjusting the optical density of the first black matrix 90 in the sub-pixels 20, and only some optional embodiments of the first black matrix 90 in the sub-pixels 20 in the display panel provided by the present invention are exemplarily described below, it should be noted that the adjustment manner of the optical density of the first black matrix is not listed in other embodiments of the present invention, but different technical solutions for realizing the transmittance in the sub-pixels by arranging the first black matrix in the sub-pixels in the same manner as the present invention are within the scope of the present patent protection.

With continued reference to fig. 2, optionally, wherein the concentration of the black pigment in the first black matrix 90 in the first sub-pixel 21 is less than the concentration of the black pigment in the first black matrix 90 in the second sub-pixel 22.

Specifically, with continued reference to fig. 2, the edge transition area 10 in the display panel includes at least one first pixel row 203, the first pixel row 203 includes at least a first sub-pixel 21 and a second sub-pixel 22 with different penetration rates, the concentration of the black pigment in the first black matrix in the first sub-pixel 21 is smaller than the concentration of the black pigment in the second sub-pixel 22 in the first black matrix, the penetration rate of the first sub-pixel 21 is greater than the penetration rate of the second sub-pixel 22, the luminance of the first sub-pixel 21 is greater than the luminance of the second sub-pixel 22, and the second sub-pixel 22 is located between the first sub-pixel 21 and the special-shaped boundary a1, that is, the first pixel row 203 with the sub-pixels 20 having different penetration rates is present in the edge transition area 10, and in the first pixel row 203, the luminance of the first sub-pixel 21 far from the special-shaped boundary a1 is greater than the luminance of the second sub-pixel 22 near the special-shaped boundary a1, the edge position 30 adjacent to the special-shaped boundary a1 is shielded by the second black matrix and is opaque, the brightness is almost zero, and by reducing the brightness of the sub-pixel 20 close to the special-shaped boundary a1, the brightness difference between the brightness of the edge position 30 and the brightness of the sub-pixel 20 close to the special-shaped boundary a1 can be reduced, and the display jaggy phenomenon in the edge transition region 10 close to the special-shaped boundary a1 is improved.

Optionally, wherein the black pigment is carbon.

It should be understood that the embodiment is only described with the black pigment as carbon, and the black pigment may be other materials, which is not limited in the embodiment.

It should be noted that, in the manner of forming the edge transition region 10 shown in fig. 13 and 14, the pixel electrode 24 in the edge transition region 10 may have the same structure as the pixel electrode 24 in the normal display region. In addition, in the embodiment of the invention, in order to obtain a more refined edge transition region, a mode of changing the structures of the pixel electrode and/or the common electrode and a mode of changing the penetration rate of the first black matrix can be combined. For example, a plurality of sub-images which are provided with the same number of bending parts of the pixel electrode or/and the common electrode in the edge transition region and are continuously distributed are provided with a first black matrix on the color film substrate, and the penetration rate of the first black matrix is gradually reduced along the direction close to the special-shaped boundary region.

The invention also provides a display device which comprises the display panel provided by the invention.

Referring to fig. 15, fig. 15 is a schematic structural diagram of a display device according to an embodiment of the present invention. Fig. 15 provides a display device 1000 including the display panel 400 according to any of the above embodiments of the present invention. The embodiment of fig. 15 is only an example of a mobile phone, and the display device 1000 is described, but it should be understood that the display device provided in the embodiment of the present invention may also be a display device having a display function, such as a computer, a television, and a vehicle-mounted display device, and the present invention is not limited thereto. The display device provided in the embodiment of the present invention has the beneficial effects of the display panel provided in the embodiment of the present invention, and specific reference may be made to the specific description of the display panel in each of the above embodiments, which is not repeated herein.

As can be seen from the above embodiments, the display panel and the display device provided by the present invention at least achieve the following beneficial effects:

Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A display panel, comprising:

a display area comprising a shaped boundary, the display area comprising an edge transition region adjacent to the shaped boundary;

the display area further comprises a plurality of sub-pixels;

the sub-pixels are arranged in pixel rows along a first direction and arranged in pixel columns along a second direction; the first direction and the second direction are perpendicular;

the edge transition zone comprises at least one first pixel row, the first pixel row at least comprises a first sub-pixel and a second sub-pixel with different penetration rates, and the second sub-pixel is positioned between the first sub-pixel and the special-shaped boundary; the penetration rate of the first sub-pixel is greater than that of the second sub-pixel;

the first pixel row at least comprises the first sub-pixel, the second sub-pixel and a third sub-pixel with different penetration rates, and the third sub-pixel is located between the second sub-pixel and the special-shaped boundary; the penetration rates of the first sub-pixel, the second sub-pixel and the third sub-pixel are sequentially decreased; the area of each sub-pixel positioned in the edge transition area is the same, each sub-pixel comprises an electrode, each electrode is in a comb-tooth shape and comprises at least one comb tooth, and at least one comb tooth in each electrode comprises at least one bending part; the bending part comprises a first bending part; the first bending part comprises a first strip-shaped subsection extending along a third direction and a second strip-shaped subsection extending along a fourth direction, and the first strip-shaped subsection and the second strip-shaped subsection are intersected to form a corner; the third direction and the fourth direction intersect;

the electrode comprises at least one first comb tooth and at least one second comb tooth;

each comb tooth of the first sub-pixel comprises 2 first bending parts, and the corner on the first comb tooth and the corner on the second comb tooth corresponding to the corner on the first comb tooth are on a straight line along the first direction;

each comb tooth of the second sub-pixel comprises 2 first bending parts, and the corner on the first comb tooth and the corner on the second comb tooth corresponding to the corner on the first comb tooth are not on a straight line along the first direction;

each comb tooth of the third sub-pixel comprises 3 first bending parts, and the corner on the first comb tooth and the corner on the second comb tooth corresponding to the corner on the first comb tooth are on a straight line along the first direction;

a first dark band region is formed between the first bent portions corresponding to the first and second comb teeth in the first and third subpixels, a second dark band region is formed between the first bent portions corresponding to the first and second comb teeth in the second subpixel, and the area of the first dark band region is smaller than that of the second dark band region.

2. The display panel according to claim 1,

the first pixel row comprises at least one first sub-pixel and at least one second sub-pixel;

at least one of the second sub-pixels is located between the first sub-pixel row and the first sub-pixel adjacent to the shaped boundary.

3. The display panel according to claim 2,

the electrodes are pixel electrodes and/or common electrodes.

4. The display panel according to claim 3,

the electrode comprises at least two comb teeth and a slit positioned between two adjacent comb teeth.

5. The display panel according to claim 4,

each comb tooth in the electrode comprises at least one bending part.

6. The display panel according to claim 1,

the bending part comprises a second bending part and a third bending part;

the second bending portion comprises the first strip-shaped subsection extending along the third direction, a third strip-shaped subsection extending along the fifth direction, a fourth strip-shaped subsection extending along the sixth direction and the second strip-shaped subsection extending along the fourth direction, and the first strip-shaped subsection and the third strip-shaped subsection, the third strip-shaped subsection and the fourth strip-shaped subsection intersect to form a corner;

the third bending part comprises a first strip-shaped subsection extending along a third direction and a second strip-shaped subsection extending along a fourth direction, and the first strip-shaped subsection and the second strip-shaped subsection are intersected to form a corner;

the third direction, the fourth direction, the fifth direction and the sixth direction all pass through an intersection point of the first direction and the second direction;

each comb tooth of the first sub-pixel comprises n3 third bending parts, each comb tooth of the second sub-pixel comprises n3 second bending parts, and each comb tooth of the third sub-pixel comprises n4 third bending parts; wherein the content of the first and second substances,

7. A display device characterized by comprising the display panel according to any one of claims 1 to 6.