CN110221493B

CN110221493B - Display panel

Info

Publication number: CN110221493B
Application number: CN201910555761.6A
Authority: CN
Inventors: 黄信玮; 吕家庆; 洪敏翔; 蔡承勳
Original assignee: AU Optronics Corp
Current assignee: AU Optronics Corp
Priority date: 2018-11-26
Filing date: 2019-06-25
Publication date: 2021-09-03
Anticipated expiration: 2039-06-25
Also published as: CN110221493A

Abstract

A display panel comprises a first substrate, a second substrate, frame glue, signal lines and turning lines, wherein the signal lines comprise first to nth signal lines which substantially extend along a first direction, and the turning lines comprise first to mth turning lines which substantially extend along a second direction. The boundary between the turning line and the signal line is substantially parallel to the third direction, the first direction, the fourth direction perpendicular to the first direction and the third direction define a first auxiliary region, one side of the first auxiliary region is overlapped with the boundary, two vertexes of the first auxiliary region are overlapped with the first signal line, the other vertex is overlapped with the nth signal line, the signal line in the first auxiliary region further comprises a first auxiliary electrode, the vertical projection area of the signal line in the first auxiliary region is A1, the area of the first auxiliary region is B1, and the ratio of 60% to A1/B1 is less than or equal to 100%.

Description

Display panel

Technical Field

The present disclosure relates to display panels, and particularly to a display panel including sealant.

Background

Currently, most of the liquid crystal display devices on the market have an upper substrate, a lower substrate, and a liquid crystal layer between the two substrates. Generally, the lcd device further includes a sealant connecting the upper substrate and the lower substrate together, wherein the sealant surrounds the liquid crystal layer to prevent the liquid crystal from flowing out of the side of the lcd panel.

In the prior art, a plurality of slits are formed on the traces overlapping the sealant, or each trace is formed by a plurality of thin lines arranged side by side, so that light can pass through the slits between the thin lines to cure the sealant overlapping the wires. However, with the progress of technology, the circuit layout space of the lcd device is smaller and smaller, and the line width of the wiring is thinner and thinner. The traces overlapped on the sealant are easily burned due to too narrow line width, and especially in the region where the traces are bent, the traces are easily burned due to energy concentration.

Disclosure of Invention

The invention aims to provide a display panel which can solve the problem that a wire overlapped on frame glue is burnt in a turning region.

An embodiment of the invention provides a display panel. Comprises a first substrate, a second substrate, a sealant, a signal line and a turning line. The second substrate is arranged opposite to the first substrate. The frame glue is positioned between the first substrate and the second substrate. The signal lines are located on the first substrate and include first to nth signal lines extending substantially along a first direction, n being a positive integer and equal to or greater than 2. The turning line is connected with the signal line. The turning line comprises a first turning line, a second turning line and a third turning line, wherein the first turning line, the second turning line and the third turning line substantially extend along the second direction, and m is a positive integer and is greater than or equal to 2. The boundary of the turning line and the signal line is substantially parallel to the third direction. The signal line is overlapped with the turning line and the frame glue in the direction vertical to the first substrate. The first direction, a fourth direction perpendicular to the first direction, and the third direction define a first auxiliary area. One side of the first auxiliary area is overlapped with the boundary. Two vertices of the first auxiliary area overlap the first signal line. The other vertex of the first auxiliary area overlaps the nth signal line. The signal line in the first auxiliary region further includes a first auxiliary electrode. The first auxiliary electrode is arranged between the first signal line and the boundary of the nth signal line and is connected with at least one of the first signal line and the nth signal line. The vertical projection area of the signal line in the first auxiliary area is A1. The area of the first auxiliary area is B1, and the ratio of A1/B1 is more than or equal to 60% and less than or equal to 100%.

An embodiment of the invention provides a display panel. The display panel comprises a first substrate, a second substrate, a sealant, and a signal lineAnd a turning line. The second substrate is arranged opposite to the first substrate. The frame glue is positioned between the first substrate v and the second substrate. The signal line is located on the first substrate. The signal lines include first to nth signal lines extending substantially along a first direction. n is a positive integer and 2 or more. The signal line, the turning line and the frame glue are overlapped in the direction vertical to the first substrate. The line widths of the first signal line to the nth signal line are respectively C₁To C_n. The distance between the a-th signal line and the (a +1) -th signal line is X_a. a is an integer of 1 to (n-1). The turning line is connected with the signal line. The turning line includes a first turning line to an m-th turning line extending substantially along the second direction. m is a positive integer and 2 or more. The line widths from the first turning line to the mth turning line are respectively D₁To D_m. The distance between the b-th turning line and the (b +1) -th turning line is Z_b. b is an integer of 1 to (m-1). Display panel assembly

And Z_b＞X_aAt least one of, and

the invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.

Drawings

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

FIG. 2A is a schematic top view of one of the traces in the area A of FIG. 1;

fig. 2B is a schematic top view of a trace according to an embodiment of the invention;

fig. 2C is a schematic top view of a trace according to an embodiment of the invention;

fig. 2D is a schematic top view of a trace according to an embodiment of the invention;

fig. 2E is a schematic top view of a trace according to an embodiment of the invention;

fig. 2F is a schematic top view of a trace according to an embodiment of the invention;

fig. 2G is a schematic top view of a trace according to an embodiment of the invention;

fig. 2H is a schematic top view of a trace according to an embodiment of the invention;

fig. 2I is a schematic top view of a trace according to an embodiment of the invention;

fig. 2J is a schematic top view of a trace according to an embodiment of the invention;

fig. 2K is a schematic top view of a trace according to an embodiment of the invention;

FIG. 3 is a schematic top view of one of the traces in area B of FIG. 1;

FIG. 4 is a schematic top view of one of the traces in area C of FIG. 1;

FIG. 5A is a schematic top view of one of the traces in area D of FIG. 1;

fig. 5B is a schematic top view of a trace according to an embodiment of the invention;

fig. 5C is a schematic top view of a trace according to an embodiment of the invention.

Wherein the reference numerals

10: display panel

100: first substrate

110a to 110k, 120, 130a to 130c, 210: wiring

112: signal line

1121: first signal line

1122: second signal line

1123: third signal line

1124: fourth signal line

1125: fifth signal line

114: turning line

1141: first turning line

1142: second turning line

1143: third turning line

1144: the fourth turning line

1145: fifth turning line

116. 122, 216: conducting wire

1161. 1221, 2161: first conductive line

1162. 1222, 2162: second conductive line

1163. 1223, 2163: third conducting wire

1164. 1224: fourth conducting wire

1165. 1225: the fifth conductor

124. 214: connecting wire

126. 212, and (3): transmission line

1261. 2121: a first transmission line

1262. 2122: second transmission line

1263. 2123: third transmission line

1264. 2124: a fourth transmission line

1265. 2125: fifth transmission line

132: output line

1321: first output line

1322: second output line

1323: third output line

1324: fourth output line

1325: a fifth output line

134: fan-out line

136: input line

1361: a first input line

1362: second input line

1363: third input line

1364: a fourth input line

1365: the fifth input line

200: second substrate

2141: first connecting wire

2142: second connecting line

2143: third connecting line

300: frame glue

400: drive control unit

A. B, C, D: region(s)

AA: display area

a 1: first auxiliary area

a 2: second auxiliary area

a 3: third auxiliary area

a 4: fourth auxiliary area

BA: peripheral zone

C1-C5, D1-D4, E1-E5: line width

X1-X4, Z1-Z3, Y1-Y5: distance between each other

D1-D15: direction of rotation

F: auxiliary electrode

F1: a first auxiliary electrode

F2: second auxiliary electrode

F3: third auxiliary electrode

F4: fourth auxiliary electrode

FOA: fan-out area

O1, O2: opening of the container

WOA: array winding area

X1-X4: interface

Detailed Description

The invention will be described in detail with reference to the following drawings, which are provided for illustration purposes and the like:

fig. 1 is a schematic diagram of a display panel according to an embodiment of the invention. In which fig. 1 omits to show the traces on the first substrate, the pixel structures in the display area, and the display medium.

Referring to fig. 1, the display panel 10 includes a first substrate 100, a second substrate 200, a sealant 300, and a driving control unit 400. The second substrate 200 is disposed opposite to the first substrate 100. The sealant 300 is located between the first substrate 100 and the second substrate 200, wherein the sealant 300 is a photo-curing material.

The first substrate 100 has a display area AA and a peripheral area BA located at least on one side of the display area AA. The peripheral area BA includes an array winding area (Wire on array areas) WOA and a Fan-out area (Fan-out areas) FOA. The array winding area WOA and the fan-out area FOA respectively comprise a plurality of wires. The driving control unit 400 is disposed on the first substrate 100 and electrically connected to the traces on the array wire-winding area WOA and the fan-out area FOA. The schematic enlarged plan view of the region a may be fig. 2J, for example. The schematic enlarged plan view of the region B may be fig. 3, for example. The schematic enlarged plan view of the region C may be fig. 4, for example. The schematic enlarged plan view of the region D may be fig. 5A, for example.

Fig. 2A is a schematic top view of one of the traces in the area a of fig. 1. Referring to fig. 1 and fig. 2A, the trace 110a is located in an area a of the array routing area WOA. The trace 110a includes a signal line 112, a turning line 114 and a conductive line 116 connected in sequence. The signal line 112, the turning line 114 and the conductive line 116 are disposed on the first substrate 100. In a direction perpendicular to the first substrate 100, the signal line 112, the turning line 114, the conductive line 116 and the sealant 300 are overlapped. The signal line 112 is closer to the driving control unit 400 than the turning line 114, and the turning line 114 is closer to the driving control unit 400 than the conducting line 116.

The signal lines 112 include first to nth signal lines substantially extending along a first direction D1, where n is a positive integer and n is greater than or equal to 2. The first signal line to the nth signal line are arranged in sequence. In the embodiment, n is equal to 5, and the signal line 112 includes a first signal line 1121, a second signal line 1122, a third signal line 1123, a fourth signal line 1124 and a fifth signal line 1125, which is not limited thereto.

The break line 114 connects the signal line 112. The turning line 114 includes a first turning line to an m-th turning line substantially extending along the second direction D2, wherein m is a positive integer and m is greater than or equal to 2. The first turning line to the mth turning line are arranged in sequence. In the embodiment, m is equal to 5, and the turning line 114 includes a first turning line 1141, a second turning line 1142, a third turning line 1143, a fourth turning line 1144 and a fifth turning line 1145, which is not limited thereto. The intersection X1 between the bend line 114 and the signal line 112 is substantially parallel to the direction D3. The direction D3 is different from the direction D1, the direction D2, and the direction D4 perpendicular to the direction D1.

The lead 116 is connected to the turning line 114. The turning line 114 is located between the conductive line 116 and the signal line 112. The conductive lines 116 include first through kth conductive lines extending substantially along a direction D5, where k is a positive integer and k is greater than or equal to 2. n, m, and k may be equal or unequal. The first to k-th conductive lines are arranged in sequence. In the present embodiment, k is equal to 5, and the conductive lines 116 include a first conductive line 1161, a second conductive line 1162, a third conductive line 1163, a fourth conductive line 1164, and a fifth conductive line 1165, which is not limited thereto. The intersection X2 of the bend line 114 and the conductive line 116 is substantially parallel to the direction D6. The direction D6 is different from the direction D5, the direction D2, and the direction D7 perpendicular to the direction D5.

In some embodiments, the signal lines 112 further include auxiliary lines (not depicted) extending along the direction D4, the auxiliary lines connecting the first to nth signal lines, making electrical performance distribution on the first to nth signal lines more even. In some embodiments, the conductive traces 116 further include auxiliary lines (not shown) extending along the direction D7, the auxiliary lines connecting the first conductive trace to the kth conductive trace, making the electrical distribution across the first conductive trace to the kth conductive trace more uniform.

The length of the break line 114 is less than the length of the signal line 112 and the length of the conductive line 116. The distance between the boundary X1 and the boundary X2 is short, so that when current is applied, energy is easily concentrated at the position of the turning line 114.

The direction D1, the direction D4 perpendicular to the direction D1, and the direction D3 define a first auxiliary area a 1. One side of the first auxiliary region a1 overlaps the boundary X1, two vertices of the first auxiliary region a1 overlap the first signal line 1121, and the other vertex of the first auxiliary region a1 overlaps the nth signal line (the fifth signal line 1125). In the first auxiliary region a1, the signal line 112 further includes a first auxiliary electrode F1. The first auxiliary electrode F1 is disposed between the first signal line 1121 and the nth signal line (the fifth signal line 1125) and the boundary X1. The first auxiliary electrode F1 is connected to at least one of the first to nth signal lines 1121 to (fifth signal line 1125). The shape of the first auxiliary electrode F1 in the first auxiliary area a1 can be adjusted according to actual requirements.

The vertical projection area of the signal line 112 including the first to nth signal lines 1121 to (fifth signal lines 1125) and the first auxiliary electrode F1 in the first auxiliary region a1 is a1, the area of the first auxiliary region a1 is B1, and a1/B1 is 60% or more and 100% or less. For example, 65% ≦ A1/B1 ≦ 100%, 70% ≦ A1/B1 ≦ 100%, or 75% ≦ A1/B1 ≦ 100%. In some embodiments, the vertical projection area of the first auxiliary electrode F1 on the first auxiliary area a1 is C1, 5% ≦ C1/B1 ≦ 50%. For example, 10% ≦ C1/B1 ≦ 45%, 15% ≦ C1/B1 ≦ 40%. It is noted that the areas refer to areas vertically projected on the first substrate 100.

The direction D1, the direction D2, and the direction D3 define a second auxiliary region a 2. One side of the second auxiliary area a2 overlaps the boundary X1. The two vertices of the second auxiliary area a2 overlap the first turning line 1141. The other vertex of the second auxiliary area a2 overlaps the mth turn line (fifth turn line 1145). In the second auxiliary region a2, the turning line 114 further includes a second auxiliary electrode F2. The second auxiliary electrode F2 is disposed between the first inflection line 1141 and the mth inflection line (the fifth inflection line 1145) and the boundary X1. The second auxiliary electrode F2 is connected to at least one of the first to m-th turns 1141 to 1145. The shape of the second auxiliary electrode F2 in the second auxiliary area a2 can be adjusted according to actual requirements.

The perpendicular projection area of the inflection line 114 including the first to m-th inflection lines 1141 to 1145 and the second auxiliary electrode F2 in the second auxiliary region a2 is a 2. The area of the second auxiliary area a2 is B2, and the ratio of A2/B2 is more than or equal to 60 percent and less than or equal to 100 percent. For example, 65% ≦ A2/B2 ≦ 100%, 70% ≦ A2/B2 ≦ 100%, or 75% ≦ A2/B2 ≦ 100%. In some embodiments, the vertical projection area of the second auxiliary electrode F2 on the second auxiliary area a2 is C2, 5% ≦ C2/B2 ≦ 50%. For example, 10% ≦ C2/B2 ≦ 45%, 15% ≦ C2/B2 ≦ 40%. It is noted that the aforementioned area refers to an area vertically projected on the first substrate 100, for example.

The direction D5, the direction D7 perpendicular to the direction D5, and the direction D6 define a third auxiliary area a 3. One side of the third auxiliary area a3 overlaps the boundary X2, two vertices of the third auxiliary area a3 overlap the first conductive line 1161, and another vertex of the third auxiliary area a3 overlaps the kth conductive line (the fifth conductive line 1165). In the third auxiliary area a3, the conductive wire 116 further includes a third auxiliary electrode F3. The third auxiliary electrode F3 is disposed between the first conductive line 1161 and the kth conductive line (the fifth conductive line 1165) and the boundary X2. The third auxiliary electrode F3 is connected to at least one of the first lead 1161 to the k-th lead (fifth lead 1165). The shape of the third auxiliary electrode F3 in the third auxiliary area a3 can be adjusted according to actual requirements.

The vertical projection area of the wire 116 including the first to kth wires 1161 to (the fifth wire 1165) and the third auxiliary electrode F3 in the third auxiliary area A3 is A3, the area of the third auxiliary area A3 is B3, and A3/B3 is 60% to 100%. For example, 65% ≦ A3/B3 ≦ 100%, 70% ≦ A3/B3 ≦ 100%, or 75% ≦ A3/B3 ≦ 100%. In some embodiments, the vertical projection area of the third auxiliary electrode F3 on the third auxiliary area a3 is C3, 5% ≦ C3/B3 ≦ 50%. For example, 10% ≦ C3/B3 ≦ 45%, 15% ≦ C3/B3 ≦ 40%. It is noted that the aforementioned area refers to an area vertically projected on the first substrate 100, for example.

The direction D5, the direction D2, and the direction D6 define a fourth auxiliary area a 4. One side of the fourth auxiliary area a4 overlaps the boundary X2. Two vertices of the fourth auxiliary area a4 overlap the first turning line 1141. The other vertex of the fourth auxiliary area a4 overlaps the mth turn line (fifth turn line 1145). In the fourth auxiliary area a4, the turning line 114 further includes a fourth auxiliary electrode F4. The fourth auxiliary electrode F4 is disposed between the first inflection line 1141 and the mth inflection line (the fifth inflection line 1145) and the boundary X2. The fourth auxiliary electrode F4 is connected to at least one of the first to m-th turns 1141 to 1145.

The perpendicular projection area of the inflection line 114 including the first to m-th inflection lines 1141 to 1145 and the fourth auxiliary electrode F4 in the fourth auxiliary region a4 is a 4. The area of the fourth auxiliary area a4 is B4, and the ratio of A4/B4 is more than or equal to 60 percent and less than or equal to 100 percent. For example, 65% ≦ A4/B4 ≦ 100%, 70% ≦ A4/B4 ≦ 100%, or 75% ≦ A4/B4 ≦ 100%. In some embodiments, the vertical projection area of the fourth auxiliary electrode F4 on the fourth auxiliary area a4 is C4, 5% ≦ C4/B4 ≦ 50%. For example, 10% ≦ C4/B4 ≦ 45%, 15% ≦ C4/B4 ≦ 40%. It is noted that the aforementioned area refers to an area vertically projected on the first substrate 100, for example.

In the present embodiment, the second auxiliary area a2 is separated from the fourth auxiliary area a4, but the present invention is not limited thereto. In other embodiments, the second auxiliary area a2 overlaps with the fourth auxiliary area a 4. Therefore, in some embodiments, the second auxiliary electrode F2 and the fourth auxiliary electrode F4 may share a partial area.

In the embodiment, the first auxiliary electrode F1, the second auxiliary electrode F2, the third auxiliary electrode F3 and the fourth auxiliary electrode F4 are respectively disposed in the first auxiliary area a1, the second auxiliary area a2, the third auxiliary area a3 and the fourth auxiliary area a4, and the auxiliary electrodes are disposed in a range not exceeding the corresponding auxiliary areas, but the invention is not limited thereto. In other embodiments, the auxiliary electrodes are disposed beyond the corresponding auxiliary areas.

Based on the above, by disposing the auxiliary electrode at the position of the trace turn, the problem of burning in the turn region can be improved.

Fig. 2B is a schematic top view of a trace according to the present invention. For example, fig. 2B is a schematic top view of one of the traces in the area a of fig. 1. The trace 110B of fig. 2B is similar to the trace 110a of fig. 2A, and the same or similar contents are not repeated herein. The traces 110B of fig. 2B and the traces 110a of fig. 2A may be different traces in the same display panel, or may be traces in different display panels.

Referring to fig. 1 and 2B, the signal lines 112 include first to nth signal lines. In the present embodiment, n is equal to 5, and the line widths of the first signal line 1121 through the nth signal line (the fifth signal line 1125) are respectively C₁To C_n(C₅). The distance between the a-th signal line and the (a +1) -th signal line is X_aAnd a is a positive integer of 1 to (n-1). In the present embodiment, a is 1 to 4, and the distance between the first signal line 1121 and the second signal line 1122 is X₁The distance between the second signal line 1122 and the third signal line 1123 is X₂The third signal line 1123 and the fourth signal line 1124 are spaced by X₃The fourth signal line 1124 and the fifth signal line 1125 are spaced apart by X₄。

The turning line 114 includes first to mth turning lines 1141 to mth turning lines. In this embodiment, m is equal to 3, the first turning line 1141 to the mth turning line (the mth turning line)The line widths of the three turning lines 1143) are respectively D₁To D_m(D₃). The distance between the b-th turning line and the (b +1) -th turning line is Z_bAnd b is a positive integer of 1 to (m-1). In this embodiment, b is 1 or 2, and the distance between the first turning line 1141 and the second turning line 1142 is Z₁The distance between the second and

third turns

1142 and 1143 is Z₂。

The conductive lines 116 include first conductive lines 1161 through kth conductive lines. In the present embodiment, k is equal to 2, and the line widths of the first conductive line 1161 to the kth conductive line (the second conductive line 1162) are respectively E₁To E_k(E₂). The distance between the c-th wire and the (c +1) -th wire is Y_cC is a positive integer from 1 to (k-1), in this embodiment, c is 1, and the distance between the first conductive line 1161 and the second conductive line 1162 is Y₁。

Line width C₁To C_nLine width D₁To line width D_mAnd line width E₁To E_kMay be equal or unequal. In the present embodiment, the line width C₁To line width C₅Respectively 1 micron. In the present embodiment, the line width D₁To line width D₃5/3 microns. In the present embodiment, the line width E₁And line width E₂Is 1.5 microns.

In the preferred embodiment, the signal line 112, the turning line 114 and the conductive line 116 conform to formula 1 and formula 2.

Formula 1

Formula 2

In the trace conforming to the formula 1 and/or the formula 2, the line width change rates of the signal line 112, the turning line 114 and the conductive line 116 are limited to a certain ratio, so that the signal on the trace is not affected by the line width.

Distance X₁To X_n-1Distance Z between₁To Z_m-1And a pitch Y₁To Y_k-1May be equal or unequal. In the present embodiment, the pitch X₁To the interval X₄Is 2 microns. In the present embodiment, the pitch Z₁And the distance Z₂Is 4 microns. In the present embodiment, the pitch Z₁And the distance Y₁Is 8 microns.

In the present embodiment, the trace 110b of the display device conforms to at least one of the formulas 3 and 4.

Formula 3

Formula 4

Z_b>X_a

In some embodiments, the trace 110b conforms to equation 3. In other words, the sum of the line widths of the first to m-th turning lines 1141 to 1143 is greater than the sum of the line widths of the first to n-th signal lines 1121 to 1125. Therefore, the turning line can bear higher current, so that the turning line is not easy to burn.

In some embodiments, the trace 110b conforms to equation 4. In other words, the distance between two adjacent first to m-th inflection lines (third inflection line 1143) is greater than the distance between two adjacent first to n-th signal lines (fifth signal line 1125) 1121 to 1125. For example, in the present embodiment, the distance Z₁Greater than the spacing X₁Distance Z between₁Greater than the spacing X₂Distance Z between₁Greater than the spacing X₃Distance Z between₁Greater than the spacing X₄(ii) a Distance Z₂Greater than the spacing X₁Distance Z between₂Greater than the spacing X₂Distance Z between₂Greater than the spacing X₃Distance Z between₂Greater than the spacing X₄. By controlling the distance between two adjacent turns from the first turn line 1141 to the mth turn line (the third turn line 1143), the heat dissipation capability of the turn line 114 is better, so that the turn line 114 is not easy to be burned. Therefore, even the first signal line 1121 through the second signal line 1121The sum of the line widths of the n signal line (the fifth signal line 1125) is greater than or equal to the sum of the line widths of the first turning line 1141 to the m turning line (the third turning line 1143), and the turning line 114 is still not easily burned.

In the present embodiment, the trace 110b of the display device conforms to formula 5.

Formula 5

By adjusting the line width C_nAnd the distance X_n-1The ratio of (a) to (b) can make the sealant 300 overlapped on the trace 110a cured more completely.

In some embodiments, the trace 110b of the display device selectively conforms to the following formulas 6 and 7.

Formula 6

Formula 7

By adjusting the line width D_mAnd the distance Z_m-1And adjusting the line width E_kAnd the distance Y_k-1The ratio of (a) to (b) can further completely cure the sealant 300 overlapped on the trace 110 a.

Fig. 2C is a schematic top view of a trace according to the present invention. For example, fig. 2C is a schematic top view of one of the traces in the area a of fig. 1. The trace 110C of fig. 2C is similar to the trace 110B of fig. 2B, and the same or similar contents are not repeated herein. The traces 110C of fig. 2C and the traces 110B of fig. 2B may be different traces in the same display panel, or may be traces in different display panels.

Referring to fig. 2C, the signal lines 112 include first to fifth signal lines 1121 to 1125.

The turning line 114 includes first to third turning lines 1141 to 1143.

The conductive lines 116 include first conductive lines 1161 through kth conductive lines. In the present embodiment, k is equal to 3, and the line widths of the first conductive line 1161 to the kth conductive line (the third conductive line 1163) are respectively E₁To E_k(E₃). The distance between the c-th wire and the (c +1) -th wire is Y_cC is 1 to (k-1), in this embodiment, c is 1 to 2, and the distance between the first conductive line 1161 and the second conductive line 1162 is Y₁The distance between the second conductive line 1162 and the third conductive line 1163 is Y₂。

Line width C₁To C_nLine width D₁To line width D_mAnd line width E₁To E_kMay be equal or unequal. In the present embodiment, the line width C₁To line width C₅Respectively 1 micron. In the present embodiment, the line width D₁And line width D₃1.5 μm, line width D₂Is 3 microns. In the present embodiment, the line width E₁And line width E₃Is 1 micron, line width E₂Is 3 microns. In other words, the trace 110c of the present embodiment conforms to the formula 3, which can improve the problem of trace burn.

In some embodiments, m is greater than or equal to 3. For example, in the embodiment, m is equal to 3, the second turning line 1142 is located between the first turning line 1141 and the mth turning line (the third turning line 1143), and the line width D of the second turning line 1142₂Line width D greater than first fold line 1141₁And the line width D of the mth turn line (third turn line 1143)_m(D₃). Therefore, the problem of burn of the wiring can be further improved.

Distance X₁To X_n-1Distance Z between₁To Z_m-1And a pitch Y₁To Y_k-1May be equal or unequal. In the present embodiment, the pitch X₁To the interval X₄Is 2 microns. In the present embodiment, the pitch Z₁And the distance Z₂Is 2.5 microns. In the present embodiment, the pitch Y₁And the distance Y₂Is 2.5 microns. In other words, the trace 110c of the present embodiment conforms to the formula 4, which can improve the problem of trace burn.

Fig. 2D is a schematic top view of a trace according to the present invention. For example, fig. 2D is a schematic top view of one of the traces in the area a of fig. 1. The trace 110D of fig. 2D is similar to the trace 110C of fig. 2C, and the same or similar contents are not repeated herein. The traces 110D in fig. 2D and the traces 110C in fig. 2C may be different traces in the same display panel, or may be traces in different display panels.

The main difference between the trace 110D of fig. 2D and the trace 110C of fig. 2C is: in the trace 110d, n is equal to 3. In other words, the signal lines 112 include first to third signal lines 1121 to 1123.

In the present embodiment, the line width C₁And line width C₃Respectively 1 micrometer, line width C₂Is 3 microns. In the present embodiment, the pitch X₁And the distance X₂Is 2.5 microns.

In the present embodiment, the line width D₁And line width D₃1.5 μm, line width D₂Is 3 microns. In the present embodiment, the line width E₁And line width E₃Is 1 micron, line width E₂Is 3 microns.

The trace 110d of the present embodiment conforms to the formula 3, which can improve the problem of trace burn.

Fig. 2E is a schematic top view of a trace according to the present invention. For example, fig. 2E is a schematic top view of one of the traces in the area a of fig. 1. The trace 110E of fig. 2E is similar to the trace 110B of fig. 2B, and the same or similar contents are not repeated herein. The trace 110E of fig. 2E and the trace 110B of fig. 2B may be different traces in the same display panel, or may be traces in different display panels.

The main difference between the trace 110E of fig. 2E and the trace 110B of fig. 2B is: in trace 110e, k is equal to 5. In other words, the conductive lines 116 include first to fifth conductive lines 1161 to 1165.

In the present embodiment, the line width E₁To line width E₅Respectively 1 micron. In the present embodiment, the pitch Y₁To the interval Y₅Respectively 2 microns.

Fig. 2F is a schematic top view of a trace according to the present invention. For example, fig. 2F is a schematic top view of one of the traces in the area a of fig. 1. The trace 110F of fig. 2F is similar to the trace 110E of fig. 2E, and the same or similar contents are not repeated herein. The traces 110F of fig. 2F and the traces 110E of fig. 2E may be different traces in the same display panel, or may be traces in different display panels.

The main difference between the trace 110F of fig. 2F and the trace 110E of fig. 2E is: the trace 110F further includes a first auxiliary electrode F1, a second auxiliary electrode F2, a third auxiliary electrode F3 and a fourth auxiliary electrode F4. The arrangement of the first auxiliary electrode F1, the second auxiliary electrode F2, the third auxiliary electrode F3 and the fourth auxiliary electrode F4 can be seen in the embodiment of fig. 2A, and will not be described herein again.

Based on the above, the trace 110f of the present embodiment improves the problem of trace burning by adjusting the line width and the line distance and providing the auxiliary electrode.

In the present embodiment, the line width E₁To line width E₅Respectively 1 micron. In the present embodiment, the pitch Y₁To the interval Y₄Respectively 2 microns.

Fig. 2G is a schematic top view of a trace according to the present invention. For example, fig. 2G is a schematic top view of one of the traces in the area a of fig. 1. The trace 110G of fig. 2G is similar to the trace 110F of fig. 2F, and the same or similar contents are not repeated herein. The traces 110G of fig. 2G and the traces 110F of fig. 2F may be different traces in the same display panel, or may be traces in different display panels.

The main difference between the trace 110G of fig. 2G and the trace 110F of fig. 2F is: the second auxiliary electrode F2 and the fourth auxiliary electrode F4 of the trace 110g are located between the first turning line 1141 and the second turning line 1142. In addition, in the wires 116 of the trace 110g, k is equal to 3, and the wires 116 include a first wire 1161, a second wire 1162 and a third wire 1163.

Fig. 2H is a schematic top view of a trace according to the present invention. For example, fig. 2H is a schematic top view of one of the traces in the area a of fig. 1. The trace 110H of fig. 2H is similar to the trace 110B of fig. 2B, and the same or similar contents are not repeated herein. The trace 110H in fig. 2H and the trace 110B in fig. 2B may be different traces in the same display panel, or may be traces in different display panels.

The main difference between the trace 110H of fig. 2H and the trace 110B of fig. 2B is: the trace 110h includes a first auxiliary electrode F1 and a third auxiliary electrode F3. The arrangement of the first auxiliary electrode F1 and the third auxiliary electrode F3 can be seen in the embodiment of fig. 2A, and is not repeated herein.

Fig. 2I is a schematic top view of a trace according to the present invention. For example, fig. 2I is a schematic top view of one of the traces in the area a of fig. 1. The trace 110I in fig. 2I is similar to the trace 110D in fig. 2D, and the same or similar contents are not repeated herein. The trace 110I in fig. 2I and the trace 110D in fig. 2D may be different traces in the same display panel, or may be traces in different display panels.

The main difference between the trace 110I of fig. 2I and the trace 110D of fig. 2D is: the trace 110i includes a first auxiliary electrode F1, a second auxiliary electrode F2, a third auxiliary electrode F3 and a fourth auxiliary electrode F4. The arrangement of the first auxiliary electrode F1, the second auxiliary electrode F2, the third auxiliary electrode F3 and the fourth auxiliary electrode F4 is similar to that of the embodiment shown in fig. 2A, and is not repeated herein.

In the present embodiment, the distance X between the first signal line 1121 and the second signal line 1122₁Different from the spacing X between the second signal line 1122 and the third signal line 1123₂. A distance Z between the first turning line 1141 and the second turning line 1142₁Is different from the distance Z between the second and

third turns

1142 and 1143₂. A distance Y between the first conductive line 1161 and the second conductive line 1162₁Different from the distance Y between the second conductive line 1162 and the third conductive line 1163₂。

Fig. 2J is a schematic top view of a trace according to the present invention. For example, fig. 2J is a schematic top view of one of the traces in the area a of fig. 1. The trace 110J of fig. 2J is similar to the trace 110I of fig. 2I, and the same or similar contents are not repeated herein. The trace 110J in fig. 2J and the trace 110I in fig. 2I may be different traces in the same display panel, or may be traces in different display panels.

The main difference between the trace 110J of fig. 2J and the trace 110I of fig. 2I is: the first auxiliary electrode F1 of the trace 110j is located between the first signal line 1121 and the fourth signal line 1124, and the third auxiliary electrode F3 is located between the first conductive line 1161 and the second conductive line 1162.

In trace 110j, m is equal to 4. In other words, the turning line 114 includes the first turning line 1141 to the fourth turning line 1144.

Fig. 2K is a schematic top view of a trace according to the present invention. For example, fig. 2K is a schematic top view of one of the traces in the area a of fig. 1. The trace 110K of fig. 2K is similar to the trace 110J of fig. 2J, and the same or similar contents are not repeated herein. The traces 110K in fig. 2K and the traces 110J in fig. 2J may be different traces in the same display panel, or may be traces in different display panels.

The main difference between the trace 110K of fig. 2K and the trace 110J of fig. 2J is: in trace 110k, n is equal to 3. In other words, the signal lines 114 include first to third signal lines 1121 to 1123.

The first auxiliary electrode F1 of the trace 110k is located between the first signal line 1121 and the third signal line 1123, and the third auxiliary electrode F3 is located between the first conductive line 1161 and the third conductive line 1163.

The second auxiliary electrode F2 and the fourth auxiliary electrode F4 of the trace 110k are located between the first turning line 1141 and the second turning line 1142.

Fig. 3 is a schematic top view of one of the traces in the area B of fig. 1.

Referring to fig. 3, the trace 210 includes a conductive line 216, a connecting line 214 and a transmission line 212 connected in sequence.

The conductive lines 216 include a first conductive line 2161 to a k-th conductive line extending substantially along the direction D5, k being equal to or greater than 2. In the present embodiment, k is equal to 5, and the conductive lines 216 include first conductive lines 2161 to fifth conductive lines 2165.

The connecting lines 214 include first to pth connecting lines 2141 to p extending substantially along the direction D8, p is a positive integer and p is greater than or equal to 2. In the embodiment, p is equal to 3, and the connection lines 214 include a first connection line 2141 to a third connection line 2143. The bonding wires 214 are connected to the conductive wires 216. The connection line 214 and the conductive line 216 have an intersection X3 therebetween.

The transmission line 212 includes first to qth transmission lines 2121 to 21278 extending substantially along the direction D9, q being a positive integer and q being greater than or equal to 2. In the present embodiment, q is equal to 3, and the transmission line 212 includes first to third transmission lines 2121 to 2123. The transmission line 212 is connected to the connection line 214. The connection line 214 and the transmission line 212 have an intersection X4 therebetween. The connection line 214 is located between the transmission line 212 and the conductive line 216.

In the present embodiment, the length of the connection line 214 is smaller than the length of the transmission line 212 and the length of the conductive line 216. Since the boundary X3 is close to the boundary X4, energy tends to concentrate at the connection line 214 when current is applied.

Referring to fig. 3 and fig. 2J, in the present embodiment, the trace 210 is connected to the trace 210a, and the conductive line 216 of the trace 210 is substantially equal to the conductive line 116 of the trace 110. In other words, the first wires 2161 to the third wires 2163 of fig. 3 are substantially equal to the first wires 1161 to the third wires 1163 of fig. 2J. in other embodiments, other electronic elements or other traces may be included between the wires 216 and the wires 116.

In the present embodiment, the problem of the burn of the connection line 214 can be improved by a method similar to that of the turning line 114 in any of the previous embodiments, for example, the problem of the burn of the connection line 214 can be improved by adjusting the line widths of the first transmission line 2121 to the q-th transmission line, the distance between the first transmission line 2121 to the q-th transmission line, adding the auxiliary electrode F at the interface between the connection line 214 and the conductive line 216, and adding the auxiliary electrode F at the interface between the connection line 214 and the transmission line 212.

Fig. 4 is a schematic top view of one of the traces in the area C of fig. 1.

Referring to fig. 4, the trace 120 includes a conductive line 122, a connecting line 124 and a transmission line 126 connected in sequence.

The conductive lines 122 include a first conductive line 1221 through an r-th conductive line substantially extending along the direction D10, r is a positive integer and r is greater than or equal to 2. In the present embodiment, r is equal to 5, and the conductive lines 1221 include first to fifth conductive lines 1221 to 1225.

The connecting line 124 extends along the direction D11. The connecting wire 124 is connected to the wire 122. In the present embodiment, the connection wires 124 are electrically connected to the conductive wires 116 of fig. 2A. In other words, there may be other electronic components or other traces between the connecting wires 124 and the conductive wires 116.

The connecting line 124 does not overlap the sealant 300, so that the sealant 300 can be cured smoothly even if the connecting line 124 is a solid structure.

Transmission line 126 includes first through qth transmission lines 1261 through q extending substantially along direction D12, q being greater than or equal to 2. In this embodiment, q is equal to 5 and the transmission line 126 includes first to fifth transmission lines 1261 to 1265. The transmission line 126 is connected to the connection line 124. The connecting line 124 is located between the transmission line 126 and the conductive line 122.

Fig. 5A is a schematic top view of one of the traces in the area D of fig. 1.

Referring to fig. 5A and fig. 1, the trace 130a includes an output line 132, a fan-out line 134, and an input line 136. Fanout line 134 is located between output line 132 and input line 136.

Output line 132 extends along direction D13. The output line 132 is electrically connected to the driving control unit 400. The output line 132 overlaps the sealant 300. The output line 132 includes a first output line 1321 having a meandering shape (waveform) or/and a second output line 1322 having a linear shape. Although the first output line 1321 and the second output line 1322 are connected to form a whole in the embodiment, the invention is not limited thereto. In other embodiments, the first output line 1321 and the second output line 1322 may be respectively located on different conductive layers.

The first output line 1321 and the second output line 1322 are overlapped, and a plurality of openings O1 are formed between the projection of the first output line 1321 and the projection of the second output line 1322 in the direction perpendicular to the first substrate, so that the sealant 300 can be cured smoothly.

The fanout line 134 extends along direction D14. Fanout line 134 connects to output line 132. The fanout line 134 is not overlapped with the sealant 300, so that the sealant 300 can be cured smoothly even if the fanout line 134 is a solid structure.

Input line 136 extends along direction D15. The input line 136 is electrically connected to a pixel array (not shown) in the display area AA. The input lines 136 include a first input line 1361 shaped in a waveform or/and a second input line 1362 shaped in a linear form. Although the first input line 1361 and the second input line 1362 are integrally connected in the present embodiment, the present invention is not limited thereto. In other embodiments, the first input line 1321 and the second input line 1362 may be located at different conductive layers, respectively.

The first input line 1321 overlaps the second input line 1362, and the first input line 1321 and the second input line 1362 have a plurality of openings O2 therebetween.

The present embodiment improves the problem of uneven distribution of the impedance of the display panel by adjusting the shapes of the first output line 1321 and the first input line 1361.

Fig. 5B is a schematic top view of one of the traces in the area D of fig. 1. . The trace 130B of fig. 5B is similar to the trace 130a of fig. 5A, and the same or similar contents are not repeated herein. The trace 130B in fig. 5B and the trace 130a in fig. 5A may be different traces in the same display panel, or may be traces in different display panels.

The main difference between the trace 130B of fig. 5B and the trace 130a of fig. 5A is: the output lines 132 of the trace 130b include first to fifth output lines 1321 to 1325 parallel to each other, and the input line 136 includes first to fifth input lines 1361 to 1365 parallel to each other.

Fig. 5C is a schematic top view of one of the traces in the area D of fig. 1. The trace 130C of fig. 5C is similar to the trace 130a of fig. 5A, and the same or similar contents are not repeated herein. The trace 130C in fig. 5C and the trace 130a in fig. 5A may be different traces in the same display panel, or may be traces in different display panels.

The main difference between the trace 130C of fig. 5C and the trace 130a of fig. 5A is: the input lines 136 of the trace 130c include first to fifth input lines 1361 to 1365 that are parallel to each other.

In summary, by adjusting the line widths of the various wires in the trace (e.g., from the first turning line to the mth turning line and/or from the first connecting line to the pth connecting line), adjusting the line distances of the various wires in the trace and/or disposing the auxiliary electrodes at the turning positions of the trace, the problem of the trace being easily burned at the turning positions can be effectively improved.

Although the present invention has been described with reference to the above embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention.

The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A display panel, comprising:

a first substrate;

the second substrate is arranged opposite to the first substrate;

the frame glue is positioned between the first substrate and the second substrate;

a signal line on the first substrate and including a first signal line to an nth signal line extending along a first direction, n being a positive integer and n being greater than or equal to 2;

a turning line connected to the signal line and including a first turning line extending along a second direction to an mth turning line, m being a positive integer and greater than or equal to 2; and

a lead connected to the turning line and located between the lead and the signal line;

wherein a boundary of the turning line and the signal line is parallel to a third direction, and the signal line, the turning line, the conductive line and the sealant are overlapped in a direction perpendicular to the first substrate, wherein the first direction, a fourth direction perpendicular to the first direction and the third direction define a first auxiliary region, one side of the first auxiliary region is overlapped with the boundary, two vertexes of the first auxiliary region are overlapped with the first signal line, and the other vertex of the first auxiliary region is overlapped with the nth signal line, the signal line in the first auxiliary region further includes a first auxiliary electrode disposed between the first signal line and the nth signal line and the boundary and connected with at least one of the first signal line and the nth signal line, a vertical projection area of the signal line in the first auxiliary region is a1, and an area of the first auxiliary region is B1, 60 percent to 100 percent of A1/B1.

2. The display panel of claim 1, wherein the vertical projection area of the first auxiliary electrode in the first auxiliary area is C1, 5% ≦ C1/B1 ≦ 50%.

3. The display panel of claim 1, wherein the first direction, the second direction and the third direction define a second auxiliary region, one side of the second auxiliary region overlaps the boundary, two vertices of the second auxiliary region overlap the first turning line, and the other vertex of the second auxiliary region overlaps the mth turning line, the turning line in the second auxiliary region further includes a second auxiliary electrode disposed between the first turning line and the mth turning line and the boundary and connected to at least one of the first turning line and the mth turning line, a vertical projection area of the turning line in the second auxiliary region is A2, and an area of the second auxiliary region is B2, 60% ≦ A2/B2 ≦ 100%.

4. The display panel of claim 3, wherein the vertical projection area of the second auxiliary electrode in the second auxiliary area is C2, 5% ≦ C2/B2 ≦ 50%.

5. The display panel of claim 1, further comprising:

and a driving control unit located on the first substrate, wherein the signal line is closer to the driving control unit than the turning line, and the total line width from the first signal line to the nth signal line is greater than the total line width from the first turning line to the mth turning line.

6. The display panel of claim 1, wherein the conductive lines include a first conductive line to a k-th conductive line extending along a fifth direction, k is a positive integer and k is greater than or equal to 2.

7. The display panel of claim 6, further comprising:

a connecting line including a first connecting line to a pth connecting line extending along a sixth direction, p being a positive integer and p being greater than or equal to 2, and the connecting line connecting the wires; and

a transmission line including a first transmission line to a qth transmission line extending along a seventh direction, q being a positive integer and q being greater than or equal to 2, and the transmission line being connected to the connection line, wherein the connection line is located between the transmission line and the conductive line.

8. The display panel of claim 6, further comprising:

the connecting wire is electrically connected with the lead, is not overlapped on the frame glue and is of a solid structure; and

a transmission line including a first transmission line to a qth transmission line extending along a seventh direction, q being a positive integer and q being greater than or equal to 2, and the transmission line being connected to the connection line.

9. The display panel of claim 1, further comprising:

a drive control unit located on the first substrate;

and the output line extends along an eighth direction, is electrically connected with the driving control unit and is overlapped with the frame glue, and comprises a first output line in a waveform shape.

10. The display panel of claim 9, further comprising a fan-out line extending along a ninth direction, wherein the fan-out line is connected to the output line, the fan-out line does not overlap the sealant, and the fan-out line has a solid structure.

11. The display panel of claim 9, further comprising a second output line shaped as a straight line, wherein the first output line and the second output line overlap, and wherein a plurality of openings are formed between the first output line and the second output line.

12. The display panel of claim 1, wherein m is equal to or greater than 3, wherein a second turning line is located between the first turning line and the m-th turning line, and a line width of the second turning line is greater than a line width of the first turning line and a line width of the m-th turning line.

13. The display panel of claim 1, wherein the first signal line to the nth signal line have line widths C₁To C_nThe distance between the a-th signal line and the (a +1) -th signal line is X_aA is an integer from 1 to (n-1), wherein the line widths from the first turning line to the mth turning line are respectively D₁To D_mThe distance between the b-th turning line and the (b +1) -th turning line is Z_bB is an integer of 1 to (m-1), wherein

The display panel is conformed with

And Z_b＞X_aAt least one of, and

14. a display panel, comprising:

a first substrate;

the second substrate is arranged opposite to the first substrate;

a signal line on the first substrate and including a first signal line to an n-th signal line extending along a first direction, n being a positive integer and n being greater than or equal to 2, wherein line widths of the first signal line to the n-th signal line are respectively C₁To C_nThe distance between the a-th signal line and the (a +1) -th signal line is X_aA is an integer of 1 to (n-1); and

a turning line connected to the signal line, wherein the turning line includes a first turning line to an m-th turning line extending along a second direction, m is a positive integer and m is greater than or equal to 2; and

a wire, the wire is connected with the turning line, the turning line is positioned between the wire and the signal line, the turning line, the wire and the frame glue are overlapped in the direction vertical to the first substrate;

wherein the line widths from the first turning line to the mth turning line are respectively D₁To D_mThe distance between the b-th turning line and the (b +1) -th turning line is Z_bB is an integer of 1 to (m-1), wherein

The display panel is conformed with

And Z_b>X_aAt least one of them, and

15. the display panel according to claim 14,

16. the display panel according to claim 14,

17. the display panel of claim 14, wherein the conductive lines include a first conductive line to a k-th conductive line extending along a fifth direction, k is a positive integer and k is greater than 1, wherein the line widths of the first conductive line to the k-th conductive line are respectively E₁To E_kThe distance between the c-th wire and the (c +1) -th wire is Y_cC is an integer of 1 to (k-1), wherein

18. The display panel of claim 17, further comprising:

19. The display panel of claim 17, further comprising:

a connecting wire extending along a sixth direction, wherein the connecting wire is electrically connected with the conducting wire, the connecting wire is not overlapped with the frame glue, and the connecting wire is of a solid structure; and

20. The display panel of claim 14, further comprising:

a drive control unit located on the first substrate;

21. The display panel of claim 20, further comprising a fan-out line extending along a ninth direction, wherein the fan-out line is connected to the output line, the fan-out line does not overlap the sealant, and the fan-out line has a solid structure.

22. The display panel of claim 20, further comprising a second output line shaped as a straight line, wherein the first output line and the second output line overlap, and wherein a plurality of openings are formed between the first output line and the second output line.

23. The display panel of claim 14, wherein m is equal to or greater than 3, wherein a second turning line is located between the first turning line and the m-th turning line, and a line width of the second turning line is greater than a line width of the first turning line and a line width of the m-th turning line.

24. The display panel of claim 14, wherein an intersection of the turning line and the signal line is parallel to a third direction, the first direction, a fourth direction perpendicular to the first direction and the third direction define a first auxiliary area, one side of the first auxiliary area is overlapped with the boundary, two vertexes of the first auxiliary area are overlapped with the first signal line, and the other vertex of the first auxiliary area overlaps the nth signal line, the signal line in the first auxiliary area further comprises a first auxiliary electrode arranged between the first signal line and the boundary of the nth signal line and connected with at least one of the first signal line and the nth signal line, the vertical projection area of the signal line in the first auxiliary area is A1, the area of the first auxiliary area is B1, and A1/B1 is more than or equal to 60% and less than or equal to 100%.