CN109584776B - Display panel and display device - Google Patents

The display panel breaks through the limitation of a single rectangular structure of the display panel, so that not only the display effect is more diversified, but also the application way of the display panel is more and more extensive, and the display panel is successfully applied to wearable electronic designs such as watches, glasses or intelligent bracelets. Compared with a conventional display screen, the special-shaped display screen is mainly different in that the display area of the special-shaped display screen is in a non-rectangular special shape. When the display panel is in a special shape, for example, referring to fig. 1, fig. 1 is a top view of a display panel in the prior art, in which a

display area

101 includes a

recessed section

102 recessed into the

display area

101, in order to realize a narrow frame, a

data line

104 corresponding to a sub-display area P1 is routed in a

non-display area

105 corresponding to the

recessed section

102, so as to increase the total length of the

data line

104, or perform some other processing on the

data line

104, which may cause the resistance of the

data line

104 corresponding to the sub-display area P1 to increase, so that the resistance of the

data line

104 in the sub-display area P1 and the

data line

104 in the sub-display area P2 may be different, and thus the display brightness difference between the sub-display area P1 and the sub-display area P2 may be easily caused.

Fig. 1 is a top view of a display panel in the prior art, in the view shown in fig. 1, a

display area

101 in a

display panel

100 includes a

concave section

102 that is concave toward the inside of the

display area

101, and in order to implement a narrow bezel design, a

data line

104 corresponding to a sub-display area P1 is routed in a

non-display area

105 corresponding to the

concave section

102 or some other processing is performed on the

data line

104, which may cause an increase in resistance of the

data line

104 corresponding to the sub-display area P1, and a difference in resistance between the

data line

104 in the sub-display area P1 and the

data line

104 in the sub-display area P2, thereby easily causing a difference in display brightness between the sub-display area P1 and the sub-display area P2.

Fig. 2 is a top view of a display panel according to an embodiment of the present invention, fig. 3 is a partially enlarged view of a first data line in the embodiment of fig. 2, please refer to fig. 2 and fig. 3, in the

display panel

200 according to the embodiment of the present invention, a

first edge

208 of a

display region

206 includes a

recessed segment

209, the

recessed segment

209 is recessed toward the inside of the

display region

206, and a

recessed frame region

204 is formed in a

non-display region

207 adjacent to the

recessed segment

209. The introduction of the

recessed segment

209 divides the

display area

206 of the

display panel

200 into a

first display area

202 and two

second display areas

211, the two

second display areas

211 are respectively located at two sides of the

first display area

202, wherein the

first display area

202 is adjacent to the

recessed segment

209 along the first direction. A plurality of

gate lines

210 and a plurality of

data lines

201 are disposed on the

substrate

10, the plurality of

data lines

201 include a plurality of

first data lines

203 passing through the

first display region

202 and a plurality of

second data lines

205 passing through the

recessed frame region

204, and in particular, referring to fig. 3, each

first data line

203 of at least a part of the

first data lines

203 includes at least one segment of

sub-line segment

301, for example, the

display panel

100 includes m

first data lines

203, where any one of the n (n ≦ m)

first data lines

203 includes at least one segment of

sub-line segment

301; in the first direction, the width of the

sub-line segment

301 is smaller than the width of other parts of the same

first data line

203, that is, the

sub-line segment

301 is thinner than other parts of the

first data line

203; thus, referring to fig. 2 and fig. 3, the

sub-line segment

301 with a smaller width is introduced to the

first data line

203, so that, compared with the prior art, the resistance of the

first data line

203 is increased, so as to reduce the resistance difference between the

first data line

203 and the

second data line

205, thereby improving the uniformity of the data signals of the

first data line

203 and the

second data line

205, and thus improving the uniformity of the display luminance of the area where the

first data line

203 is located (i.e., the

first display area

202 and the second display area B) and the area where the

second data line

205 is located (i.e., the second display area a), which is beneficial to improving the uniformity of the display luminance of the

display panel

200, and further beneficial to improving the display effect of the

display panel

200.

It should be noted that the

sub-line segment

301 located on the

first data line

203 may be obtained by etching a partial area on the

data line

201 after the data line is formed, or may be obtained by directly forming the

data line

201 with a specific shape, which is not specifically limited in this application. In addition, fig. 2 only shows that the

display area

206 includes one

recessed segment

209, in some other embodiments of the present application, the

display area

206 may further include two or more

recessed segments

209, which is not described in detail herein. The size and shape of the

recessed section

209 can be flexibly set according to actual requirements, and the present application is not particularly limited to this. In addition, fig. 2 also only shows a relative position of the

recessed segment

209 on the

display panel

200, in some other embodiments of the present application, the

recessed segment

209 may also be located in other areas, for example, please refer to fig. 4, fig. 4 shows another top view of the

display panel

200 provided in the embodiments of the present application, in the viewing angle shown in fig. 4, the

recessed segment

209 is located at the lower left corner of the

display panel

200, and the introduction of the

recessed segment

209 divides the

display area

206 into a

first display area

202 and a

second display area

211.

It should be noted that, in the embodiment shown in fig. 2, the plurality of

first data lines

203 and the plurality of

second data lines

205 are only schematically shown, and do not represent actual sizes and numbers of the

data lines

201, and are only schematically illustrated.

Optionally, each

first data line

203 of all the

first data lines

203 comprises at least one segment of

sub-line segment

301. Referring to fig. 5, fig. 5 is a top view of

first data lines

203 in a

first display area

202 of a

display panel

200 according to an embodiment of the present disclosure, where each

first data line

203 in the embodiment includes a plurality of

sub-line segments

301. It should be noted that, when the

first data line

203 includes

multiple sub-line segments

301, the

notch

309 on the

first data line

203 adjacent to the

sub-line segments

301 may be located on a side of the

first data line

203 facing the

recessed segment

209, or may be located on a side of the

first data line

203 away from the

recessed segment

209, which is not specifically limited in this application.

Specifically, please refer to fig. 2 and fig. 5, in the present application, each

first data line

203 in the

first display area

202 includes at least one segment of

sub-line

301, and the specific number of the

sub-line segments

301 in the same

first data line

203 can be designed according to the actual requirement of the display panel, so that the resistances of the

first data lines

203 in the

first display area

202 are closer to each other, and the overall resistance distribution of the

first data lines

203 in the

first display area

202 and the second display area B is more uniform, thereby facilitating to improve the display brightness uniformity of the

first display area

202 and the second display area B.

Optionally, fig. 6 is a top view of the

first data line

203 in the

first display area

202 of the

display panel

200 according to an embodiment of the present disclosure, please refer to fig. 2 and fig. 6, in which the

first data line

203 includes a plurality of

sub-line segments

301, and a total length of the

sub-line segments

301 on each

first data line

203 along the second direction decreases from a side close to the

concave section

209 to a side far from the

concave section

209 along the first direction.

Specifically, with reference to fig. 6, in the

display panel

200 provided in the embodiment of the present application, the total length of the

sub-line segments

301 included in the

first data line

203 close to the

concave section

209 along the second direction is larger, the total length of the

sub-line segments

301 included in the

first data line

203 far from the

concave section

209 along the second direction is smaller, and the total length of the

sub-line segments

301 on each

first data line

203 along the second direction decreases from the side close to the

concave section

209 to the side far from the

concave section

209. Since the second data line 205 needs to be processed in some other way when passing through the recessed frame area 204 after the display area 206 is introduced into the recessed segment 209, due to the winding of the second data line 205, the total length of the second data line 205 is increased, or in order to compress the width of the recessed frame area 204, so that the resistance of the second data line 205 becomes larger, when the total length of the sub-line segment 301 included in the first data line 203 close to the recessed frame area 204 in the second direction is designed to be larger, the resistance of the first data line 203 close to the second data line 205 can be made larger, which is favorable for reducing the resistance difference between the adjacent first data line 203 and the second data line 205, and the total length of the sub-line segment 301 included in the first data line 203 tends to become smaller from the side close to the recessed segment 209 to the side far from the recessed segment 209, this makes the resistance of the first data line 203 gradually decrease, which is favorable for reducing the possibility of sudden change of the resistance of the data line from the second display area a to the second display area B, thereby being favorable for reducing the possibility of sudden change of the display brightness from the second display area a to the second display area B, further being favorable for improving the uniformity of the display brightness of the second display area a and the second display area B, and being favorable for improving the display effect of the display panel 200.

Optionally, with continuing reference to fig. 5, in the

display panel

200 provided in the embodiment of the present application, the widths of all the

sub-line segments

301 along the first direction are the same.

Specifically, the widths of all the

sub-line segments

301 in the

first data line

203 are designed to be the same, and when the

first data line

203 is manufactured, the

sub-line segments

301 are formed by using the same width standard, and different widths do not need to be customized for different

sub-line segments

301, so that the design method is beneficial to simplifying the preparation process of the

first data line

203, and is beneficial to improving the production efficiency of the

display panel

200.

Optionally, with continued reference to fig. 5, in the

display panel

200 provided in the embodiment of the present application, the width of the

sub-line segment

301 along the first direction is D1, and D1 ≧ 2.5 μm.

Specifically, when the width D1 of the

sub-line segment

301 along the first direction is less than 2.5 μm, the width is small, and when the

display panel

200 is subjected to an external force, the

sub-line segment

301 is easily broken, which affects the normal display of the

display panel

200; therefore, when the width of the

sub-line segment

301 along the first direction is designed to be D1 ≧ 2.5 μm, the possibility of breakage of the

sub-line segment

301 when the

display panel

200 is subjected to an external force can be reduced, so that the

first data line

203 can reliably transmit a data signal, which is beneficial to improving the display reliability of the

display panel

200.

Optionally, fig. 7 is another partial top view of the

display panel

200 provided in this embodiment of the present application, where in the

display panel

200 provided in this embodiment of the present application, an orthogonal projection of the

sub-line segment

301 on the plane of the

substrate

10 does not overlap with the

gate line

210.

In general, there is an overlap between the

gate lines

210 and the

data lines

201 on the

display panel

200, and the area of the overlapped area is kept consistent; if the orthogonal projection of the

sub-line segment

301 of the

first data line

203 on the plane of the

substrate

10 overlaps with the

gate line

210, the width of the

sub-line segment

301 is small, so that the overlapping area is reduced, and the coupling capacitance between the

first data line

203 and the

gate line

210 is reduced, and since the signal on the

gate line

210 is jumping, when the coupling capacitance between the

first data line

203 and the

gate line

210 is reduced, the potentials of the

first data line

203 in the

first display area

202 and the second display area B are changed by the influence of the gate signal, so that the

display panel

200 has the phenomenon of display unevenness. When the

sub-line segments

301 in the

first data lines

203 are not overlapped with the

gate lines

210 in the orthographic projection design of the plane where the

substrate base plate

10 is located, the phenomenon that the overlapping area between the

gate lines

210 and the

first data lines

203 is reduced can be avoided, so that the uniformity of the display brightness of the

first display area

202 and the second display area B is improved, and the display effect of the

display panel

200 is improved.

It should be noted that, in general, the display panel further includes a plurality of driving thin film transistors (not shown in the figure) arranged in an array, each sub-pixel is correspondingly driven by at least one driving thin film transistor, a gate of the driving thin film transistor is electrically connected to a gate line, a signal of the gate of the driving thin film transistor is the same as a signal on the gate line, and a position of the

gate

109 of the driving thin film transistor can be seen in fig. 7. When the

sub-line segment

301 is disposed on the

first data line

203 at a position adjacent to the

gate

109 along the first direction, the

gap

309 adjacent to the

sub-line segment

301 is preferably disposed on a side of the

first data line

203 away from the

gate

109, as shown in fig. 7, because when the

gap

309 is disposed on a side of the

first data line

203 close to the

gate

109, the distance between the

sub-line segment

301 and the

gate

109 increases along the first direction, so that the lateral coupling capacitance formed between the

first data line

301 and the

gate

109 decreases, and because the gate signal on the

gate

109 is jumped, the potential of the

first data line

203 is changed by the gate signal on the

gate

109, thereby causing display unevenness of the

display panel

200, and therefore, when the

gap

309 adjacent to the

sub-line segment

301 is disposed on a side of the

first data line

203 away from the

gate

109, the coupling capacitance between the

gate

109 and the

first data line

203 is prevented from decreasing, thereby being favorable to promoting the display brightness uniformity of the display panel and further being favorable to promoting the display effect of the display panel. Of course, in the display panel provided in the embodiment of the present application, the

sub-line segment

301 may also be not disposed at a position on the

first data line

203 adjacent to the

gate electrode

109, so as to avoid a phenomenon that a coupling capacitance between the

gate electrode

109 and the

first data line

203 is reduced, which is also beneficial to improving the display luminance uniformity of the display panel.

Optionally, fig. 8 is another top view of the

display panel

200 provided in this embodiment of the application, in which each

sub-line segment

301 in the

first data line

203 is located in the

first display area

202.

In particular, with reference to fig. 8, due to the introduction of the recessed

portion

209, the number of sub-pixels connected to one

gate line

210 in the

first display area

202 is smaller than the number of sub-pixels connected to one

gate line

210 in the

second display area

211, resulting in a certain load difference between the

first display area

202 and the

second display area

211, when the present application places each of the

sub-line segments

301 in the

first data line

203 in the

first display area

202, it is advantageous to increase the resistance of the

first data line

203 located in the

first display area

202, thereby compensating for the resistance of the

first data line

203 in the

first display area

202, thereby advantageously reducing a load difference between the

first display area

202 and the

second display area

211, therefore, the brightness difference between the

first display area

202 and the

second display area

211 can be reduced, and the display brightness uniformity of the

display panel

200 can be improved.

Optionally, referring to fig. 8 and 9, fig. 9 is an enlarged view of a portion of the first data line in the first display area in fig. 8, where the same

first data line

203 includes a plurality of

sub-line segments

301; in the second direction, from the side close to the

second display area

211 to the side far from the

second display area

211, the length of the

sub-line segment

301 on the same

first data line

203 along the second direction increases.

Specifically, with continued reference to fig. 8 and 9, when each

sub-line segment

301 in the

first data line

203 is located in the

first display area

202, in the second direction, the length of the

sub-line segment

301 on the same

first data line

203 is designed to be gradually changed, i.e., from the side close to the

second display region

211 to the side far from the

second display region

211, the length of the

sub-line segment

301 on the same

first data line

203 increases, thus, the resistance of the

first data line

203 gradually changes from the second display area B to the

first display area

202, thereby avoiding sudden change at the boundary position between the second display area B and the

first display area

202, thereby advantageously reducing the possibility of abrupt changes in brightness at the interface between the second display region B and the

first display region

202, meanwhile, the possibility of uneven brightness of the

first display area

202 itself is reduced, and thus the display uniformity of the

display panel

200 is improved.

Optionally, with reference to fig. 9, the same

first data line

203 includes a plurality of

sub-line segments

301, and the plurality of

sub-line segments

301 are disposed on the

first data line

203 at equal intervals along the second direction.

Specifically, when the same

first data line

203 includes a plurality of

sub-line segments

301, the

sub-line segments

301 may be equally spaced, where the spacing refers to a distance D0 between adjacent

sub-line segments

301 in the second direction, so that it is not necessary to set different spacing values for two adjacent

sub-line segments

301, and it is sufficient to perform equal spacing setting by using a uniform spacing, thereby facilitating simplification of the manufacturing process of the

display panel

200 and improving the production efficiency of the

display panel

200.

Optionally, referring to fig. 2, in the

display panel

200 provided in the embodiment of the present application, each of the

second data lines

205 includes a

first line segment

215 located in the

second display area

211 and a

second line segment

216 located in the recessed

frame area

204, and the

first line segment

215 and the

second line segment

216 are located in different film layers.

Specifically, after the recessed

section

209 is introduced into the

display area

206, the recessed

frame area

204 corresponding to the recessed

section

209 is formed, and the

second data line

205 passes through the recessed

frame area

204, when the

first line segment

215 in the

second data line

205 and the

second line segment

216 in the recessed

frame area

204 are respectively disposed on different film layers in the present application, the

second line segment

216 in the recessed

frame area

204 will not occupy the space of the film layer where the

first line segment

215 is located, so when the recessed

frame area

204 is disposed with the

second line segment

216, the distance between the

second line segments

216 can be compressed, so that the distance between the adjacent

second line segments

216 is smaller than the distance between the adjacent

first line segments

215, and thus, not only can each

second line segment

216 be disposed in the recessed

frame area

204, but also is beneficial for reducing the frame width of the recessed

frame area

204, and further is beneficial for realizing the narrow frame design of the recessed

frame area

204 in the

display panel

200.

Optionally, fig. 10 is an AA' cross-sectional view of the

display panel

200 shown in fig. 2 according to the embodiment of the present application, and referring to fig. 10, the

display panel

200 further includes a

first metal layer

11, a

capacitor metal layer

14, a

second metal layer

12, and a

third metal layer

13 disposed on the

substrate

10;

the

first line segment

215 is located on the

second metal layer

12, and the

second line segment

216 is located on at least one of the

first metal layer

11, the

capacitor metal layer

14, and the

third metal layer

13.

Specifically, referring to fig. 2 and fig. 10, in the

display panel

200 provided in the embodiment of the present application, the

first line segment

215 is usually located in the

second metal layer

12, and when the

second line segment

216 located in the recessed

frame area

204 is disposed in at least one of the

first metal layer

11, the

capacitor metal layer

14 and the

third metal layer

13, the

second line segment

216 can be effectively prevented from occupying the space of the

second metal layer

12, so that the distance between the

second line segment

216 and the recessed

frame area

204 is compressed. In addition, if the

second line segments

216 are disposed on at least two film layers of the

first metal layer

11, the

capacitor metal layer

14, and the

third metal layer

13, the distance between the adjacent

second line segments

216 may be further compressed, which is further beneficial to further reducing the width of the recessed

frame region

204, and is further beneficial to implementing the narrow frame design of the recessed

frame region

204.

Alternatively, fig. 11 is a BB' cross-sectional view of the

display panel

200 shown in fig. 2 according to the embodiment of the present application, where the

non-display region

207 includes an

auxiliary metal line

90, the

auxiliary metal line

90 is located on the

first metal layer

11, and the

auxiliary metal line

90 is connected to a fixed potential;

the orthographic projection of the

second line segment

216 on the plane of the

substrate base plate

10 at least partially overlaps the

auxiliary metal line

90.

Specifically, referring to fig. 11, the

auxiliary metal line

90 is disposed in the

non-display area

207, the

auxiliary metal line

90 is disposed on the

first metal layer

11, the

second line segment

216 in this embodiment is disposed on the

capacitor metal layer

14, and the orthogonal projection of the

second line segment

216 on the plane of the

substrate

10 overlaps with the

auxiliary metal line

90, because the

auxiliary metal line

90 is connected to a fixed potential, a compensation capacitor is formed in the overlapping area of the

second line segment

216 and the

auxiliary metal line

90, so that the capacitance of the second lcd area a can be compensated, which is beneficial to reducing the capacitance difference between the second lcd area a and the second lcd area B as well as the

first display area

202, and is further beneficial to improving the display brightness uniformity of the

display panel

200.

Based on the same inventive concept, the present application further provides a

display device

300, fig. 12 is a schematic structural diagram of the

display device

300 according to the embodiment of the present application, please refer to fig. 12, the

display device

300 includes a

display panel

200, and the

display panel

200 is any one of the

display panels

200 according to the embodiment of the present application. It should be noted that, for the embodiments of the

display device

300 provided in the embodiments of the present application, reference may be made to the embodiments of the

display panel

200, and repeated descriptions are omitted. The

display device

300 provided by the present application may be: any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.

Optionally, referring to fig. 12, the recessed

area

303 for installing the camera and/or the

optical sensor

302 is reserved in the

display device

300, so as to meet the requirement of the consumer on the

display device

300 in social development and also be beneficial to improving the practicability of the

display device

300. In addition, the camera and/or the

optical sensor

302 are/is arranged in the recessed

area

303, so that the display effect of the full-face screen is realized, and the high integration of the

display device

300 is facilitated.

1. A display panel, comprising:

a display area and a non-display area surrounding the display area; the display area comprises a first edge, the first edge comprises at least one sunken section, the sunken section is sunken towards the interior of the display area, and a sunken frame area is formed in a non-display area adjacent to the sunken section;

a substrate base plate;

a plurality of gate lines disposed on the substrate, extending in a first direction and arranged in a second direction, the first direction and the second direction crossing each other; the display area comprises a first display area and a second display area; the first display area is adjacent to the recessed segment along the first direction;

a plurality of data lines disposed on the substrate, arranged in the first direction and extending in the second direction, wherein the plurality of data lines include a plurality of first data lines passing through the first display region and a plurality of second data lines passing through the recessed frame region;

each of at least some of the first data lines comprises at least one sub-line segment, and the width of the sub-line segment is smaller than the width of other parts of the same first data line along the first direction;

the first data line comprises a plurality of sub-line segments, and the total length of the sub-line segments on each first data line along the second direction is gradually reduced from the side close to the concave segment to the side far away from the concave segment along the first direction, and/or;

the orthographic projection of the sub-line segments on the plane of the substrate base plate is not overlapped with the gate line, and/or;

the same first data line comprises a plurality of sub-line segments; and along the second direction, from the side close to the second display area to the side far away from the second display area, the length of the sub-line segment on the same first data line along the second direction is increased progressively.

2. The display panel according to claim 1, wherein each of the first data lines comprises at least one segment of sub-line segment.

3. The display panel according to claim 1, wherein the widths of all the sub-line segments are the same in the first direction.

4. The display panel of claim 1, wherein the sub-line segment has a width D1 along the first direction, D1 ≧ 2.5 μm.

5. The display panel of claim 1, wherein the sub-line segments are all located in the first display region.

6. The display panel according to claim 1, wherein a plurality of sub-line segments are included on the same first data line, and the plurality of sub-line segments are disposed on the first data line at equal intervals along the second direction.

7. The display panel according to claim 1, wherein each of the second data lines comprises a first line segment located in a second display area and a second line segment located in the recessed frame area, and the first line segment and the second line segment are located in different film layers.

8. The display panel according to claim 7, further comprising a first metal layer, a capacitor metal layer, a second metal layer, and a third metal layer disposed on the substrate base plate;

the first line segment is located on the second metal layer, and the second line segment is located on at least one of the first metal layer, the capacitor metal layer and the third metal layer.

9. The display panel according to claim 8, wherein the non-display region comprises an auxiliary metal line, the auxiliary metal line is located in the first metal layer, and the auxiliary metal line is connected to a fixed potential;

the orthographic projection of the second line segment on the plane of the substrate base plate at least partially overlaps with the auxiliary metal line.

10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.