CN108363247B

CN108363247B - Display panel and display device

Info

Publication number: CN108363247B
Application number: CN201810163032.1A
Authority: CN
Inventors: 骆晓东
Original assignee: Xiamen Tianma Microelectronics Co Ltd
Current assignee: Xiamen Tianma Microelectronics Co Ltd
Priority date: 2018-02-26
Filing date: 2018-02-26
Publication date: 2022-08-09
Anticipated expiration: 2038-02-26
Also published as: CN108363247A

Abstract

The embodiment of the invention provides a display panel and a display device. The display panel includes: the display panel comprises a first support column and a second support column, wherein in the direction perpendicular to the display panel, the height of the first support column is greater than that of the second support column, the orthographic projection of any first support column on the display panel is at least partially overlapped with a first area, and the first area is an area among drain electrodes corresponding to any two of a first sub-pixel unit, a second sub-pixel unit and a third sub-pixel unit; after the design is adopted, compared with the prior art, the embodiment of the invention can ensure that the first supporting column stands stably, thereby being beneficial to improving the supporting effect of the first supporting column.

Description

Display panel and display device

Technical Field

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

Background

The display panel comprises a white sub-pixel unit and sub-pixel units of other colors, in the row direction, the distance between the drain electrode corresponding to the white sub-pixel unit and the drain electrode of the sub-pixel unit adjacent to the white sub-pixel unit is smaller, and the display panel further comprises a first supporting column and a second supporting column, wherein the first supporting column plays a main supporting role, and the second supporting column plays an auxiliary supporting role. When the first supporting column is arranged between the drain electrode corresponding to the white sub-pixel unit and the drain electrode of the sub-pixel unit adjacent to the white sub-pixel unit, after the design is adopted, the standing area of the first supporting column is relatively small, so that the first supporting column is unstable in standing, and the supporting effect of the first supporting column is poor.

Disclosure of Invention

The embodiment of the invention provides a display panel and a display device, which are used for solving the problem that a first support column in the prior art is poor in support effect.

In one aspect, an embodiment of the present invention provides a display panel, where the display panel includes:

a plurality of sub-pixel units including a white sub-pixel unit, a first sub-pixel unit, a second sub-pixel unit, and a third sub-pixel unit; in the row direction, the width of the corresponding area of the white sub-pixel unit is respectively smaller than the width of the corresponding area of the first sub-pixel unit, the second sub-pixel unit and the third sub-pixel unit; each sub-pixel unit comprises a thin film transistor which comprises a drain electrode; in the row direction, the area between two adjacent sub-pixel units comprises a first area and a second area, wherein the first area is an area between the drain electrodes corresponding to any two of the first sub-pixel unit, the second sub-pixel unit and the third sub-pixel unit; the second area is an area between the drain electrode corresponding to any one of the first sub-pixel unit, the second sub-pixel unit and the third sub-pixel unit and the drain electrode corresponding to the white sub-pixel;

the display panel comprises a plurality of supporting columns, wherein the plurality of supporting columns comprise a first supporting column and a second supporting column, the height of the first supporting column is larger than that of the second supporting column in the direction perpendicular to the display panel, and the orthographic projection of the first supporting column on the display panel is at least partially overlapped with the first area.

In another aspect, an embodiment of the present invention provides a display device, which includes the display panel described above.

Any one of the above technical solutions has the following beneficial effects:

in the embodiment of the invention, the display panel comprises a white sub-pixel unit, a first sub-pixel unit, a second sub-pixel unit and a third sub-pixel unit, and the white sub-pixel unit has higher penetration rate, so the brightness of the display panel can be improved after the design is adopted; in addition, in the row direction, the width of the corresponding area of the white sub-pixel unit is respectively smaller than the width of the corresponding area of the first sub-pixel unit, the second sub-pixel unit and the third sub-pixel unit, so that after the design is adopted, the screen occupation ratio of the white sub-pixel unit can be reduced, and the influence of the white sub-pixel unit on the display effect of the display panel can be reduced; meanwhile, in the direction perpendicular to the display panel, the height of the first support column is greater than that of the second support column, so that the first support column plays a role of main support, the second support column plays a role of auxiliary support, and the orthographic projection of the first support column on the display panel is at least partially overlapped with the first region, because the first region is a region between drain electrodes corresponding to any two of the first sub-pixel unit, the second sub-pixel unit and the third sub-pixel unit, and the second region is a region between the drain electrode corresponding to any one of the first sub-pixel unit, the second sub-pixel unit and the third sub-pixel unit and a drain electrode corresponding to the white sub-pixel, the area of the first region is greater than that of the second region, and further, when the first support column is arranged in the first region, the standing area of the first support column can be relatively large, compared with the prior art, the embodiment of the invention can ensure that the first supporting column stands stably, thereby being beneficial to improving the supporting effect of the first supporting column.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

FIG. 2 is a schematic cross-sectional view along AA' of FIG. 1;

FIG. 3 is a schematic top view of another display panel according to an embodiment of the present invention;

FIG. 4 is a schematic top view of another display panel according to an embodiment of the present invention;

FIG. 5 is a schematic top view of another display panel according to an embodiment of the present invention;

FIG. 6 is a schematic top view of another display panel according to an embodiment of the present invention;

FIG. 7 is a schematic top view of another display panel according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a display device according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It should be noted that the terms "upper", "lower", "left", "right", and the like used in the description of the embodiments of the present invention are used in the angle shown in the drawings, and should not be construed as limiting the embodiments of the present invention. In addition, in this context, it is also to be understood that when an element is referred to as being "on" or "under" another element, it can be directly formed on "or" under "the other element or be indirectly formed on" or "under" the other element through an intermediate element.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Fig. 1 is a schematic top view of a display panel according to an embodiment of the present invention, and fig. 2 is a schematic cross-sectional view along direction AA' in fig. 1, as shown in fig. 1 and fig. 2, a plurality of sub-pixel units 1, each of the plurality of sub-pixel units 1 includes a white sub-pixel unit 11, a first sub-pixel unit 12, a second sub-pixel unit 13, and a third sub-pixel unit 14; in the row direction X, the width H1 of the corresponding region of the white sub-pixel unit 11 is smaller than the widths H2 of the corresponding regions of the first sub-pixel unit 12, the second sub-pixel unit 13 and the third sub-pixel unit 14; each sub-pixel cell 1 comprises a thin film transistor (not shown) comprising a drain electrode 2; in the row direction X, a region between two adjacent sub-pixel units 1 includes a first region 3 and a second region 4, where the first region 3 is a region between the drains 2 corresponding to any two of the first sub-pixel unit 12, the second sub-pixel unit 13, and the third sub-pixel unit 14; the second region 4 is a region between the drain 2 corresponding to any one of the first sub-pixel unit 12, the second sub-pixel unit 13, and the third sub-pixel unit 14 and the drain 2 corresponding to the white sub-pixel unit 11; the display panel comprises a plurality of support columns 5, wherein the plurality of support columns 5 comprise a first support column 51 and a second support column 52, the height of the first support column 51 is larger than that of the second support column 52 in the direction perpendicular to the display panel, and the orthographic projection of any first support column 51 on the display panel at least partially overlaps with the first area 3.

Specifically, as shown in fig. 1, the display panel includes a white sub-pixel unit 11, a first sub-pixel unit 12, a second sub-pixel unit 13, and a third sub-pixel unit 14, and since the white sub-pixel unit 11 has a high transmittance, the brightness of the display panel can be improved after the above design is adopted; moreover, in the row direction X, the width H1 of the area corresponding to the white sub-pixel unit 11 is smaller than the width H2 of the area corresponding to the first sub-pixel unit 12, the second sub-pixel unit 13, and the third sub-pixel unit 14, so that the screen occupation ratio of the white sub-pixel unit 11 can be reduced after the design is adopted, thereby being beneficial to reducing the influence of the white sub-pixel unit 11 on the display effect of the display panel and improving the resolution of the display panel.

As shown in fig. 2, the display panel further includes an array substrate 6, a planarization layer 7 on the array substrate 6 (other film layers are also disposed on the array substrate 6, other film layers are not shown), where the planarization layer 7 is used to make the array substrate 6 have better planarity, a support pillar on the side of the planarization layer 7 away from the substrate, optionally, a first support pillar 51 is in contact with the planarization layer 7, a second support pillar 52 is not in contact with the planarization layer 7, and a cover plate 8 on the side of the support pillar away from the array substrate 6, optionally, both the first support pillar 51 and the second support pillar 52 are in contact with the cover plate 8, and with the above arrangement, the first support pillar 51 can function as a main support, and the second support pillar 52 can function as an auxiliary support, that is, when the display panel is not pressed, the first support pillar 51 supports the display panel, so that the display panel can maintain its original shape, after the display panel is pressed, the display panel deforms, and the second support column 52 and the first support column 51 can support the display panel at the same time, so that internal devices in the display panel can be protected.

As shown in fig. 2, the planarization layer 7 includes the via hole 71 corresponding to the drain electrode 2, as shown in fig. 1 and 2, since the width H1 of the region corresponding to the white sub-pixel unit 11 is smaller than the widths H2 of the regions corresponding to the first sub-pixel unit 12, the second sub-pixel unit 13, and the third sub-pixel unit 14 in the row direction X, the distance between the drain electrode 2 corresponding to the white sub-pixel unit 11 and the drain electrode 2 corresponding to the third sub-pixel unit 14 is smaller than the distance between the drain electrode 2 corresponding to the third sub-pixel unit 14 and the drain electrode 2 corresponding to the second sub-pixel unit 13, and the distance between the via hole 711 corresponding to the drain electrode 2 of the third sub-pixel unit 14 and the via hole 712 corresponding to the drain electrode 2 of the white sub-pixel unit 11 is smaller than the distance between the via hole 713 corresponding to the drain electrode 2 of the second sub-pixel unit 13 and the via hole 711 corresponding to the drain electrode 2 of the third sub-pixel unit 14, therefore, compared with the prior art, when the first support column 51 is disposed in the first region 3 in the embodiment of the present invention, the contact area between the first support column 51 and the planarization layer 7 is relatively large, that is, the standing area of the first support column 51 is relatively large, so that the first support column 51 stands stably, and the support effect of the first support column 51 is further improved.

As shown in fig. 1, the drain electrode 2 is electrically connected to an electrode (not shown) in the corresponding sub-pixel unit 1, so that a data signal in a data line (not shown) is transmitted to the electrode through the drain electrode 2, thereby causing the corresponding sub-pixel unit 1 to emit light.

It should be noted that the orthographic projection area of the first support column 51 is larger than that of the second support column 52, and since the distance between the drain electrodes 2 corresponding to the position of the first region 3 is larger than that between the drain electrodes 2 corresponding to the position of the second region 4, the first support column 51 needs to be disposed at the position of the first region 3 to reduce the influence of the first support column 51 on the internal devices in the sub-pixel unit 1.

Alternatively, as shown in fig. 1, in two adjacent rows of sub-pixel units, one row of sub-pixel units is sequentially arranged in the order of the first sub-pixel unit 12, the second sub-pixel unit 13, the third sub-pixel unit 14, and the white sub-pixel unit 11, and the other row of sub-pixel units is sequentially arranged in the order of the third sub-pixel unit 14, the white sub-pixel unit 11, the first sub-pixel unit 12, and the second sub-pixel unit 13.

Specifically, as shown in fig. 1, after the above design is adopted, the white sub-pixel units 11 can be uniformly distributed on the display panel, so that local color cast can be effectively improved, and display uniformity can be improved, thereby being beneficial to improving the display effect of the display panel.

It should be noted that the arrangement of the sub-pixel units is merely an example, and the arrangement of the sub-pixel units may also be set according to actual requirements, and the specific arrangement is not specifically limited herein.

Optionally, fig. 3 is a schematic top view of another display panel according to an embodiment of the present invention, and as shown in fig. 3, an orthographic projection of the first support pillar 51 on the display panel at least partially overlaps with regions between the drains 2 corresponding to the second sub-pixel units 13 and the third sub-pixel units 14 in the same row.

Specifically, as shown in fig. 3, after the first support column 51 is disposed at the above position, the overlapping area between the first support column 51 and the white sub-pixel unit 11 can be reduced, and the proportion of the light-transmitting area of the white sub-pixel unit 11 occupied by the first support column 51 can be reduced, thereby being beneficial to improving the light transmittance of the display panel.

Optionally, fig. 4 is a schematic top view of another display panel provided in the embodiment of the present invention, and as shown in fig. 4, an orthographic projection of at least a portion of the second supporting pillars 52 on the display panel at least partially overlaps the second area 4.

Specifically, compared with the second supporting pillars 52 arranged at other positions, as shown in fig. 4, after the second supporting pillars 52 are arranged at the above positions, the overlapping area between the second supporting pillars 52 and the first sub-pixel unit 12 can be reduced, which is favorable for reducing the proportion of the light-transmitting area of the first sub-pixel unit 12 occupied by the second supporting pillars, thereby being favorable for improving the rendering effect of the display panel.

It should be noted that, according to actual needs, a part of the second supporting columns 52 may be disposed in the first area 3, and another part may be disposed in the second area 4, or all of the second supporting columns 52 may be disposed in the first area 3, and the specific situation is set according to actual needs, and is not limited specifically here.

Alternatively, as shown in fig. 4, the orthographic projection of the second supporting column 52 on the display panel at least partially overlaps with the region between the drains 2 corresponding to the white sub-pixel units 11 and the third sub-pixel unit 14 in the same row, wherein the third sub-pixel unit 14 and the first sub-pixel unit 12 and the second sub-pixel unit 13 are three adjacent sub-pixel units 1.

Specifically, the arrangement mode shown in fig. 4 is adopted for the sub-pixel units 1, and the second support columns 52 are arranged at the positions shown in fig. 4, as shown in fig. 4, in the column direction Y, the area between the two leftmost columns of sub-pixel units in the display panel is not occupied by the second support columns 52, and the area extends along a straight line, so that the routing lines can be arranged in the area, and after the routing lines are arranged in the area, the bending times of the routing lines can be reduced, which is beneficial to reducing the line breaking probability of the routing lines.

Alternatively, as shown in fig. 1, the first sub-pixel unit 12 is a red sub-pixel unit, the second sub-pixel unit 13 is a green sub-pixel unit, and the third sub-pixel unit 14 is a blue sub-pixel unit.

Specifically, as shown in fig. 1, after the above design is adopted, the rendering mode of the display panel can be relatively simple, which is beneficial to reducing the rendering complexity of the display panel.

Optionally, fig. 5 is a schematic top view of another display panel according to an embodiment of the present invention, as shown in fig. 5, the display panel further includes a plurality of touch lines 9 arranged along a row direction X, and an orthogonal projection of the touch line 9 on the display panel is not overlapped with an orthogonal projection of the first support column 51 and the second support column 52 on the display panel.

Specifically, as shown in fig. 5, after the touch lines 9 are disposed in the display panel, the display panel can implement a touch function, where the touch lines 9 can be used for transmitting touch sensing signals or touch driving signals, and the display panel determines the touch position of the touch main body according to the touch sensing signals and the touch driving signals. The touch line 9 is arranged in a linear extending area between two columns of sub-pixel units 1, the specific position is shown in fig. 5, after the design is adopted, the situation that the touch line 9 protrudes from the display panel when the orthographic projections of the touch line 9 and the first supporting column 51 on the display panel are overlapped can be avoided, the situation that the touch line 9 protrudes from the display panel when the orthographic projections of the touch line 9 and the second supporting column 52 on the display panel are overlapped can also be avoided, in addition, the touch line 9 is arranged at the position shown in fig. 5, the touch line 9 can extend along a straight line, the bending times of the touch line 9 are reduced, and the line breakage probability of the touch line 9 is favorably reduced.

Optionally, fig. 6 is a schematic top view of another display panel provided in an embodiment of the present invention, and as shown in fig. 6, the display panel further includes: and a plurality of metal wires 101, wherein the orthographic projection of the metal wires 101 on the display panel is not overlapped with the orthographic projection of the touch control lines 9 on the display panel.

Specifically, as shown in fig. 6, after the metal traces 101 are disposed between two touch lines 9, the coupling phenomenon between two adjacent touch lines 9 can be relatively uniform, which is beneficial to improving the touch performance of the display panel.

Optionally, as shown in fig. 6, the orthographic projection of the metal trace 101 on the display panel does not overlap with the orthographic projection of the support post on the display panel.

Specifically, as shown in fig. 6, after the metal trace 101, the first supporting column 51 and the second supporting column 52 are disposed at the positions shown in fig. 6, the protrusion on the display panel caused by the overlapping of the orthographic projections of the metal trace 101 and the first supporting column 51 on the display panel can be avoided, and the protrusion on the display panel caused by the overlapping of the orthographic projections of the metal trace 101 and the second supporting column 52 on the display panel can be also avoided.

Optionally, as shown in fig. 6, the metal trace 101 and the touch line 9 are disposed on the same layer and made of the same material.

Specifically, as shown in fig. 6, the metal trace 101 and the touch line 9 are disposed on the same layer, and when the metal trace 101 and the touch line 9 are made of the same material, the metal trace 101 and the touch line 9 can be made by one process, which is beneficial to reducing the process complexity of the display panel and is also beneficial to reducing the thickness of the display panel.

Optionally, fig. 7 is a schematic top view of another display panel according to an embodiment of the present invention, as shown in fig. 7, an extending direction of a long side of a pattern corresponding to a sub-pixel unit has an included angle θ 1 with a column direction Y, where θ 1 is smaller than 5 ° < θ 1 < 15 °, and in a column of sub-pixel units, extending directions of long sides of patterns corresponding to two adjacent sub-pixel units intersect.

Specifically, as shown in fig. 7, after the above design is adopted, two adjacent sub-pixel units in the column direction Y can form a dual-domain structure, and the structure can compensate the color and brightness of the display panel, so that the display panel can obtain more real color display and better brightness display, and the display panel cannot change the color and brightness greatly along with the change of the observation angle.

Alternatively, as shown in fig. 1, the extending direction of the long side of the pattern corresponding to the sub-pixel unit is parallel to the column direction Y.

Specifically, when the image corresponding to the sub-pixel unit is as shown in fig. 1, the design complexity of the sub-pixel unit can be reduced.

Fig. 8 is a schematic structural diagram of a display device according to an embodiment of the present invention, where the display device includes the display panel 100, and a specific structure and a principle of the display panel 100 are the same as those of the embodiment, and are not described herein again.

The display device according to the embodiment of the present invention may include, but is not limited to, any electronic device having a liquid crystal display function, such as a Personal Computer (PC), a Personal Digital Assistant (PDA), a wireless handheld device, a Tablet Computer (Tablet Computer), a mobile phone, an MP4 player, or a television.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A display panel, comprising:

a plurality of sub-pixel units including a white sub-pixel unit, a first sub-pixel unit, a second sub-pixel unit, and a third sub-pixel unit; in the row direction, the width of the corresponding area of the white sub-pixel unit is respectively smaller than the width of the corresponding area of the first sub-pixel unit, the second sub-pixel unit and the third sub-pixel unit; each sub-pixel unit comprises a thin film transistor which comprises a drain electrode; in the row direction, the area between two adjacent sub-pixel units comprises a first area and a second area, wherein the first area is an area between the drain electrodes corresponding to any two of the first sub-pixel unit, the second sub-pixel unit and the third sub-pixel unit; the second area is an area between a drain electrode corresponding to any one of the first sub-pixel unit, the second sub-pixel unit and the third sub-pixel unit and a drain electrode corresponding to the white sub-pixel unit;

in two adjacent rows of sub-pixel units, one row of sub-pixel units are sequentially arranged according to the sequence of the first sub-pixel unit, the second sub-pixel unit, the third sub-pixel unit and the white sub-pixel unit, and the other row of sub-pixel units are sequentially arranged according to the sequence of the third sub-pixel unit, the white sub-pixel unit, the first sub-pixel unit and the second sub-pixel unit;

a plurality of support columns, wherein the plurality of support columns comprise a first support column and a second support column, the height of the first support column is greater than that of the second support column in the direction perpendicular to the display panel, the orthographic projection area of the first support column is greater than that of the second support column, and the orthographic projection of any first support column on the display panel at least partially overlaps with the first area; at least part of the orthographic projection of the second supporting column on the display panel is at least partially overlapped with the second area;

the orthographic projection of the first supporting column on the display panel is at least partially overlapped with the regions between the drains corresponding to the second sub-pixel units and the third sub-pixel units in the same row;

the orthographic projection of the second supporting column on the display panel is at least partially overlapped with the areas between the drains corresponding to the white sub-pixel units and the third sub-pixel units in the same row.

2. The display panel of claim 1, wherein the first sub-pixel unit is a red sub-pixel unit, the second sub-pixel unit is a green sub-pixel unit, and the third sub-pixel unit is a blue sub-pixel unit.

3. The display panel of claim 1, wherein the display panel further comprises a plurality of touch lines arranged in the row direction, and an orthographic projection of the touch lines on the display panel does not overlap with an orthographic projection of the first and second support posts on the display panel.

4. The display panel of claim 3, wherein the display panel further comprises:

the orthographic projection of the metal wiring on the display panel is not overlapped with the orthographic projection of the touch line on the display panel.

5. The display panel of claim 4,

the orthographic projection of the metal routing on the display panel does not overlap with the orthographic projection of the supporting column on the display panel.

6. The display panel of claim 4,

the metal routing lines and the touch control lines are arranged on the same layer and are made of the same material.

7. The display panel according to claim 1, wherein the extending direction of the long side of the pattern corresponding to the sub-pixel unit has an angle θ 1 with the column direction, 5 ° < θ 1 < 15 °, and in a column of sub-pixel units, the extending directions of the long sides of the pattern corresponding to adjacent two sub-pixel units intersect.

8. The display panel according to claim 1, wherein the extension direction of the long side of the pattern corresponding to the sub-pixel unit is parallel to the column direction.

9. A display device comprising the display panel according to any one of claims 1 to 8.