CN106918969B

CN106918969B - Pixel structure and display panel using same

Info

Publication number: CN106918969B
Application number: CN201710307887.2A
Authority: CN
Inventors: 王雅榕; 林家竹; 苏松宇
Original assignee: AU Optronics Corp
Current assignee: AU Optronics Corp
Priority date: 2017-02-14
Filing date: 2017-05-04
Publication date: 2020-06-23
Anticipated expiration: 2037-05-04
Also published as: TW201830112A; CN106918969A; TWI605289B

Abstract

The present disclosure provides a pixel structure and a display panel using the same. The pixel structure is arranged on the substrate and comprises a first data line, a second data line, a transparent conductive layer and a shading layer. The first data line, the second data line and the transparent conducting layer are arranged on the substrate, and the vertical projection from the transparent conducting layer to the substrate is positioned between the vertical projections from the first data line and the second data line to the substrate. The transparent conductive layer includes a plurality of transparent conductive lines, wherein a vertical distance between two adjacent ones of the transparent conductive lines is S, and a line width of each transparent conductive line is L. The light-shielding layer includes a first portion and a second portion. The first portion and the second portion are respectively located above the first data line and the second data line, wherein the vertical distance between the first portion and the second portion is W, and W is N (L + S), wherein N is a positive integer. The pixel structure provided by the present disclosure can maintain the brightness uniformity of the pixel structure.

Description

Pixel structure and display panel using same

Technical Field

The invention relates to the technical field of display, in particular to a pixel structure and a display panel using the same.

Background

With the advancement of technology and the increase of consumer demand, display screens have been developed further. For example, the display screen of a flat panel display tends to be more and more advanced toward larger size, and the resolution is higher and higher. However, as the size of the flat panel display is designed to be larger, the distance between the edge and the center of the flat panel display and the eyes of the viewer is also larger, which causes distortion of the image and color distortion at the edge and causes poor experience of the viewer. In contrast, the advent of curved displays has been the focus of the display field in order to improve the defects of flat displays that occur when the size of the flat displays is increased. In this regard, the curvature of the curved display is generated by bending the display panel, however, the curved display may be negatively affected during the process of bending the display panel.

Disclosure of Invention

One embodiment of the invention provides a display panel, which includes a substrate, an opposite substrate and a pixel structure disposed therebetween, wherein the pixel structure includes a second transparent conductive layer and a second light-shielding layer. The second transparent conductive layer includes a plurality of transparent conductive lines, and a vertical distance between two adjacent ones of the transparent conductive lines may be S, and a line width of each of the transparent conductive lines may be L. The second light shielding layer includes a first portion and a second portion, and a vertical distance between the first portion and the second portion may be W. The relationship between the parameters L, S and W may be W ═ N (L + S), where N is a positive integer, and the positive integer N may be selected according to the number of transparent conductive lines, such that W is an integer multiple of the sum of L and S. When the substrate and the opposite substrate which are bonded with each other are bent, even if the substrate and the opposite substrate are dislocated, and the second light shielding layer and the corresponding light shielding position are deviated, the liquid crystal efficiency of the pixel structure can reduce the influence caused by the dislocation through the configuration, and further prevent the problem that the image quality of the display panel has uneven brightness.

In one embodiment of the present invention, a pixel structure is disposed on a substrate, and the pixel structure includes a first data line, a second data line, a transparent conductive layer and a light-shielding layer. The first data line, the second data line and the transparent conducting layer are arranged on the substrate, and the vertical projection from the transparent conducting layer to the substrate is positioned between the vertical projections from the first data line and the second data line to the substrate. The transparent conductive layer includes a plurality of transparent conductive lines, wherein a vertical distance between two adjacent ones of the transparent conductive lines is S, and a line width of each transparent conductive line is L. The light-shielding layer includes a first portion and a second portion. The first portion and the second portion are respectively located above the first data line and the second data line, and a vertical projection from the transparent conductive layer to the substrate is at least partially overlapped with a vertical projection from the light shielding layer to the substrate, wherein a vertical distance between the first portion and the second portion is W, and W is N (L + S), wherein N is a positive integer.

In some embodiments, the number of transparent conductive lines in the transparent conductive layer is F, where F is a positive integer greater than 2 and 0< N ≦ (F-2).

In some embodiments, the light-shielding layer further includes an opening between the first portion and the second portion, and a vertical projection of G transparent conductive lines in the transparent conductive layer to the substrate falls within a vertical projection of the opening to the substrate, where G is a positive integer smaller than F.

In some embodiments, the first data line has a first segment and a second segment connected to each other, the first segment and the second segment of the first data line extend along a first direction and a second direction, respectively, and an included angle between the first direction and the second direction is an obtuse angle. The second data line has a third segment and a fourth segment connected to each other, and the third segment and the fourth segment of the second data line extend along the first direction and the second direction, respectively.

In some embodiments, each transparent conductive line has a fifth segment and a sixth segment connected to each other, and the fifth segment and the sixth segment of each transparent conductive line extend along the first direction and the second direction, respectively.

In some embodiments, the first portion of the light shielding layer has a seventh segment and an eighth segment connected to each other, and the seventh segment and the eighth segment of the first portion extend along the first direction and the second direction, respectively. The second portion of the light shielding layer is provided with a ninth section and a tenth section which are connected, and the ninth section and the tenth section of the second portion extend along the first direction and the second direction respectively.

One embodiment of the present invention provides a pixel structure disposed on a substrate and including a first data line, a second data line, a scan line, a switching element, a first transparent conductive layer, an isolation layer, a second transparent conductive layer, and a light-shielding layer. The first data line, the second data line and the scanning line are arranged on the substrate, and the scanning line, the first data line and the second data line are arranged in a staggered mode. The switch element is arranged on the substrate and electrically connected with one of the first data line and the second data line. The first transparent conductive layer is arranged on the substrate and covers the first data line, the second data line and the scanning line. The isolation layer is arranged on the first transparent conductive layer. The second transparent conductive layer is disposed on the isolation layer and electrically connected to the switching element. The vertical projection from the second transparent conductive layer to the substrate is positioned between the vertical projections from the first data line and the second data line to the substrate. The second transparent conductive layer includes a plurality of transparent conductive lines, wherein a vertical distance of adjacent two of the transparent conductive lines is S, and a line width of each transparent conductive line is L. The light-shielding layer includes a first portion and a second portion. The first portion and the second portion are respectively located above the first data line and the second data line, and a vertical projection from the transparent conductive layer to the substrate is at least partially overlapped with a vertical projection from the light shielding layer to the substrate, wherein a vertical distance between the first portion and the second portion is W, and W is N (L + S), wherein N is a positive integer.

In some embodiments, the pixel structure further includes a display dielectric layer disposed between the second transparent conductive layer and the light-shielding layer.

One embodiment of the invention provides a display panel including a substrate, an opposite substrate and a pixel structure. The substrate has a first curvature. The opposite substrate has a second curvature, and the first curvature is substantially the same as the second curvature. The pixel structure is arranged between the substrate and the opposite substrate.

Drawings

FIG. 1A is a schematic perspective view illustrating a display panel according to a first embodiment of the present invention

Fig. 1B is a schematic top view illustrating a pixel structure according to a first embodiment of the invention.

Fig. 1C is a schematic top view illustrating a pixel structure according to a first embodiment of the invention.

FIG. 1D shows a schematic cross-sectional view of line 1D-1D of FIG. 1C.

Fig. 1E is a graph showing the relationship between the liquid crystal efficiency and the shift amount of the second light-shielding layer for different pixel structures.

Fig. 2A is a schematic top view illustrating a pixel structure according to a second embodiment of the invention.

Fig. 2B is a graph showing the relationship between the liquid crystal efficiency and the shift amount of the second light-shielding layer for different pixel structures.

Fig. 3A is a schematic top view illustrating a pixel structure according to a third embodiment of the invention.

Fig. 3B is a graph showing the relationship between the liquid crystal efficiency and the shift amount of the second light-shielding layer for different pixel structures.

Description of reference numerals:

100 display panel

102 substrate

104 opposite substrate

110A, 110B, 110C, 110D pixel structure

112 scan line

114 first data line

115A first section

115B second segment

116 second data line

117A third stage

117B fourth stage

118 switching element

119 gate electrode

120 source electrode

122 drain electrode

124 contact hole

126 first transparent conductive layer

128 second transparent conductive layer

130A-130G transparent conductive line

131A fifth stage

131B sixth stage

132 first light-shielding layer

134 second light-shielding layer

136 first portion

137A seventh stage

137B eighth stage

138 second part

139A ninth stage

139B tenth paragraph

140 opening

142 first barrier layer

144 second barrier layer

146 display dielectric layer

148 third spacer layer

1D-1D line segment

A pixel region

D1 first direction

D2 second direction

Third direction D3

D4 fourth direction

Curves of R1, R2, R3, R4, R5, R6, R7, R8 and R9

L line width

W, S distance

Detailed Description

In the following description, numerous implementation details are set forth in order to provide a thorough understanding of the present invention. It should be understood, however, that these implementation details are not to be interpreted as limiting the invention. That is, in some embodiments of the invention, such implementation details are not necessary. In addition, some conventional structures and elements are shown in the drawings in a simple schematic manner for the sake of simplifying the drawings.

Referring to fig. 1A, fig. 1A is a schematic perspective view illustrating a display panel 100 according to a first embodiment of the invention. The display panel includes a substrate 102, an opposite substrate 104, and a pixel structure (not shown). The substrate 102 has a first curvature. The opposite substrate 104 can be stacked on the substrate 102 and has a second curvature, and the first curvature and the second curvature are substantially the same. The display panel 100 can be curved by the first curvature of the substrate 102 and the second curvature of the opposite substrate 104, so as to form a curved display panel. In this embodiment, the substrate 102 may include, for example, a color filter layer, and the opposite substrate 104 may include, for example, a thin-film transistor (TFT) array substrate, but is not limited thereto. In other embodiments, the substrate 102 may include a substrate of a thin film transistor array, and the opposite substrate 104 may include a substrate of a color filter layer, or the substrate 102 may include a substrate of a color filter layer on a thin film transistor array, and the opposite substrate 104 may include a light shielding layer (see below), or the substrate 102 may include a light shielding layer (see below), and the opposite substrate 104 may include a substrate of a color filter layer on a thin film transistor array. The pixel structure is disposed between the substrate 102 and the opposite substrate 104, and will be further described below.

Referring to fig. 1B and 1C, fig. 1B and 1C are schematic top views illustrating a pixel structure 110A according to a first embodiment of the invention, wherein fig. 1B and 1C illustrate the same pixel structure 110A, and since the drawings are not too complex, the first and second light-shielding

layers

132 and 134 are not shown in fig. 1B, and will be described in detail first. In addition, the viewing angles of fig. 1B and fig. 1C are from the opposite substrate 104 (see fig. 1A) to the substrate 102 (see fig. 1A), but are not limited thereto. The pixel structure 100A can be disposed on the substrate 102 and includes a scan line 112, a first data line 114, a second data line 116, a switch element 118, a first transparent conductive layer 126, a second transparent conductive layer 128, a first light-shielding layer 132, and a second light-shielding layer 134.

Please see fig. 1B first. The scan line 112, the first data line 114, and the second data line 116 are disposed on the substrate 102, and the scan line 112, the first data line 114, and the second data line 116 are arranged in a staggered manner to define a pixel region a therebetween. The switching element 118 is disposed on the substrate 102, and the switching element 118 may be a thin film transistor, for example, and includes a gate electrode 119, a source electrode 120, and a drain electrode 122. The gate electrode 119 may be electrically connected to the scan line 112, and the source electrode 120 may be electrically connected to the second data line 116.

In addition, the first data line 114 and the second data line 116 may be zigzag-shaped. Specifically, the first data line 114 may have a first segment 115A and a second segment 115B connected to each other, and the first segment 115A and the second segment 115B of the first data line 114 extend along a first direction D1 and a second direction D2, respectively, wherein an included angle between the first direction D1 and the second direction D2 is an obtuse angle. The second data line 116 may also have a connected third segment 117A and a connected fourth segment 117B, and the third segment 117A and the fourth segment 117B of the second data line 116 extend along the first direction D1 and the second direction D2, respectively, as the first data line 114.

Please see fig. 1B and fig. 1D, wherein fig. 1D shows a cross-sectional view of a line 1D-1D of fig. 1C. The pixel structure 110A may further include a first isolation layer 142, a second isolation layer 144, a display medium layer 146, and a third isolation layer 148. The first isolation layer 142 is disposed on the substrate 102, and the first transparent conductive layer 126 is disposed on the first isolation layer 142 and above the scan line 112, the first data line 114, and the second data line 116. The first isolation layer 142 covers the first data line 114 and the second data line 116, and serves as an insulation feature to separate the first data line 114 and the second data line 116 from the first transparent conductive layer 126.

The second isolation layer 144 is disposed on the first transparent conductive layer 126, and the second transparent conductive layer 128 is disposed on the second isolation layer 144, i.e. the first transparent conductive layer 126 is located between the substrate 102 and the second transparent conductive layer 128. In addition, the position of the second transparent conductive layer 128 may correspond to the pixel region a, i.e. the vertical projection of the second transparent conductive layer 128 to the substrate 102 is located between the vertical projections of the first data line 114 and the second data line 116 to the substrate 102.

On the other hand, the drain electrode 122 of the switching element 118 can be electrically connected to the second transparent conductive layer 128 through the contact hole 124, and the switching element 118 can be used for driving and controlling the second transparent conductive layer 128. Under this configuration, in the configuration relationship between the first transparent conductive layer 126 and the second transparent conductive layer 128, when the potentials are applied to the two transparent conductive layers respectively, the two transparent conductive layers can be coupled out of the electric field together.

The second transparent conductive layer 128 includes a plurality of transparent conductive lines 130A-130G, and the shape of the transparent conductive lines 130A-130G can correspond to the first data line 114 and the second data line 116, for example, the transparent conductive line 130A has a connected fifth segment 131A and a connected sixth segment 131B, and the fifth segment 131A and the sixth segment 131B of the transparent conductive line 130A extend along the first direction D1 and the second direction D2, respectively, and further, since the included angle between the first direction D1 and the second direction D2 is an obtuse angle, the extending direction of the fifth segment 131A and the sixth segment 131B of the transparent conductive line 130A is an obtuse angle. In the second transparent conductive layer 128, the vertical distance between two adjacent transparent conductive lines 130A-130G can be labeled as a distance S, and each transparent conductive line 130A-130G has a line width L.

The display medium layer 146 is disposed on the second isolation layer 144 and the second transparent conductive layer 128, wherein the display medium layer 146 may be a liquid crystal layer, for example. The display medium layer 146 may have a plurality of display medium molecules (not shown) and may be controlled by the electric field generated by the first transparent conductive layer 126 and the second transparent conductive layer 128. The third isolation layer 148 is disposed on the display medium layer 146, which may be, for example, a passivation layer.

Referring to fig. 1C and fig. 1D, the first light-shielding layer 132 and the second light-shielding layer 134 are disposed above the display medium layer 146 and between the substrate 102 and the opposite substrate 104. Specifically, the first light-shielding layer 132 and the second light-shielding layer 134 may be formed on the opposite substrate 104, and located between the substrate 102 and the opposite substrate 104 after the substrate 102 and the opposite substrate 104 are bonded to each other. In addition, the first and second light-shielding

layers

132 and 134 may be the same layer.

The first light-shielding layer 132 may be disposed at a position corresponding to the scan line 112 and the switch element 118, for example, a vertical projection of the scan line 112 and the switch element 118 on the substrate 102 may fall within a vertical projection of the first light-shielding layer 132 on the substrate 102. The second light-shielding layer 134 may be disposed at a position corresponding to the first data line 114 and the second data line 116, for example, the second light-shielding layer 134 includes a first portion 136 and a second portion 138, and the first portion 136 and the second portion 138 are respectively located above the first data line 114 and the second data line 116, that is, the vertical projections of the first data line 114 and the second data line 116 on the substrate 102 respectively fall within the vertical projections of the first portion 136 and the second portion 138 of the second light-shielding layer 134 on the substrate 102. In addition, in fig. 1D, the disposition of the third isolation layer 148 and the first portion 136 and the second portion 138 of the second light-shielding layer 134 between the opposite substrate 104 and the third isolation layer 148 is only an example, in other embodiments, the first portion 136 and the second portion 138 of the second light-shielding layer 134 may be located between the display medium layer 146 and the third isolation layer 148, or the third isolation layer 148 may be omitted or other layered structures may be used to replace the third isolation layer 148 (color resist layer or alignment layer).

The vertical distance between the first portion 136 and the second portion 138 of the second light-shielding layer 134 can be denoted as a distance W, and the relationship between the distance W, the line width L and the distance S can be W ═ N (L + S), where N is a positive integer, i.e., the distance W is an integer multiple of the sum of the line width L and the distance S. Furthermore, the positive integer N may be selected according to the number of transparent conductive lines in the second transparent conductive layer 128, wherein when the number of transparent conductive lines is F, and F is a positive integer greater than 2, the relationship of the positive integer N and the positive integer F may be expressed as: 0< N ≦ (F-2), for example, in this embodiment, the number of the transparent conductive lines 130A-130G in the second transparent conductive layer 128 is 7, so the range of the positive integer N can be expressed as: 0< N ≦ 5.

In view of the above-mentioned parameters, taking the present embodiment as an example, the distance S may be 3 units long, the line width L may be 4 units long, and the positive integer N may be 5, so that the distance W may be 35 units long by calculation, where the "unit long" may be a unit used in international system of units (SI), such as micrometer (um), that is, the distance S, the line width L, and the distance W may be 3 micrometers, 4 micrometers, and 35 micrometers, respectively. That is, the vertical distance between the first portion 136 and the second portion 138 of the second light-shielding layer 134 can be 35 units long, and the second light-shielding layer 134 includes the opening 140 therein. The opening 140 is located between the first portion 136 and the second portion 138, and a vertical projection of a portion of the plurality of transparent conductive lines in the second transparent conductive layer 128 to the substrate 102 falls within a vertical projection of the opening 140 to the substrate 102. For example, among the 7 transparent conductive lines 130A-130G in the second transparent conductive layer 128, the vertical projection of 5 transparent conductive lines 130B-130F to the substrate 102 falls within the vertical projection of the opening 140 to the substrate 102. In other words, the second light-shielding layer 134 shields a portion of the second transparent conductive layer 128, such that a vertical projection of the second transparent conductive layer 128 to the substrate 102 and a vertical projection of the second light-shielding layer 134 to the substrate 102 at least partially overlap.

The first portion 136 and the second portion 138 of the second light-shielding layer 134 may also have shapes corresponding to the first data line 114 and the second data line 116, respectively, specifically, the first portion 136 of the second light-shielding layer 134 has a seventh segment 137A and an eighth segment 137B connected to each other, and the seventh segment 137A and the eighth segment 137B of the first portion 136 extend along the first direction D1 and the second direction D2, respectively. The second portion 138 of the second light-shielding layer 134 has a ninth segment 139A and a tenth segment 139B connected to each other, and the ninth segment 139A and the tenth segment 139B of the second portion 138 extend along the first direction D1 and the second direction D2, respectively, as the first portion 136 of the second light-shielding layer 134. In other words, when the pixel structure 110A is viewed in a direction perpendicular to the substrate 102, the first data line 114, the second data line 116, the transparent conductive lines 130A-130G of the second transparent conductive layer 128, and the first portion 136 and the second portion 138 of the second light-shielding layer 134 may have substantially the same shape.

Please return to fig. 1A. In the manufacturing process of the display panel 100, the above-mentioned components may be formed on the substrate 102 and the opposite substrate 104, and then the substrate 102 and the opposite substrate 104 are bonded to each other, and after the bonding, the substrate 102 and the opposite substrate 104 are bent, so as to obtain the curved display panel 100 as illustrated in fig. 1A. However, during the bending process, the substrate 102 and the opposite substrate 104 may be misaligned, and the second light-shielding layer 134 (see fig. 1C) may be shifted from the corresponding light-shielding position, wherein the shifting direction may be parallel to the extending direction of the scan line 112 (see fig. 1B). When the second light-shielding layer 134 (see fig. 1C) is shifted from the corresponding light-shielding position, the quality of the image provided by the display panel 100 may be further affected, for example, the problem of poor brightness uniformity may occur.

The second transparent conductive layer and the second light shielding layer are arranged in a relationship, so that the influence caused by dislocation can be reduced, and the problem of uneven brightness of the image quality of the display panel can be prevented. Specifically, please see fig. 1E, wherein fig. 1E is a graph illustrating a relationship between liquid crystal efficiency of different pixel structures and a light shielding layer shift amount of the second light shielding layer. In fig. 1E, the horizontal axis represents the offset amount of the second light-shielding layer in micrometers, and the vertical axis represents the liquid crystal efficiency of the pixel structure when driven in percentage, and the liquid crystal efficiency is positively correlated with the luminance provided by the pixel structure.

As shown in fig. 1E, the curves R1, R2 and R3 respectively represent the relationship between the liquid crystal efficiency and the shift amount of the second light-shielding layer of different pixel structures, and the difference between the pixel structures corresponding to the curves R1, R2 and R3 is the distance W (see fig. 1C). In contrast, the pixel structures corresponding to the curves R1, R2, and R3 are arranged in substantially the same manner as the pixel structures of the first embodiment, but the distances W are 34 micrometers, 35 micrometers, and 36 micrometers, respectively.

The curves R1, R2, and R3 show a gentle curve R2 than the curves R1 and R3. Further, for the pixel structure corresponding to the curve R2, when the substrate and the opposite substrate are misaligned to cause the second light shielding layer to be shifted, the liquid crystal efficiency of the pixel structure may be relatively stable, so that the brightness provided by the pixel structure is also stable, and the brightness uniformity of the pixel structure is maintained. That is, in the first embodiment, the pixel structure is disposed such that the luminance uniformity of the display panel is maintained even when the second light-shielding layer is shifted.

Referring to fig. 2A, fig. 2A is a schematic top view illustrating a pixel structure 110B according to a second embodiment of the invention. At least one difference between the present embodiment and the first embodiment is that the positive integer N in the present embodiment is selected to be 4. Further, in the present embodiment, the distance S is 3 units long, the line width L is 4 units long, and the corresponding positive integer N is selected to be 4, so that the distance W can be calculated to be 28 units long. That is, the vertical distance between the first portion 136 and the second portion 138 of the second light-shielding layer 134 is 28 units long.

Since the distance W is still an integer multiple of the sum of the distance S and the line width L, the pixel structure 110B of the present embodiment can also provide the effect of maintaining the uniformity of the luminance. Specifically, please see fig. 2B, wherein fig. 2B shows a graph of liquid crystal efficiency versus offset of the second light-shielding layer for different pixel structures. In fig. 2B, the horizontal axis represents the amount of displacement of the second light-shielding layer in micrometers, and the vertical axis represents the liquid crystal efficiency of the pixel structure when driven in percentage.

As shown in fig. 2B, the curves R4, R5 and R6 respectively represent the relationship between the liquid crystal efficiency and the second light-shielding layer shift amount of different pixel structures, and the difference between the pixel structures corresponding to the curves R4, R5 and R6 is the distance W (see fig. 2A). In contrast, the pixel structures corresponding to the curves R4, R5, and R6 are arranged in substantially the same manner as the pixel structures of the second embodiment, but the distances W are 27 micrometers, 28 micrometers, and 29 micrometers, respectively. The curves R4, R5, and R6 show a gentle curve R5 than the curves R4 and R6. As mentioned above, the luminance provided by the pixel structure corresponding to the curve R5 is relatively stable, so as to maintain the luminance uniformity of the pixel structure.

Referring to fig. 3A, fig. 3A is a schematic top view illustrating a pixel structure 110C according to a third embodiment of the invention. At least one difference between the present embodiment and the first embodiment is that the positive integer N in the present embodiment is selected to be 3. Further, in the present embodiment, the distance S is 3 units long, the line width L is 4 units long, and 3 is selected corresponding to the positive integer N, so that the distance W can be calculated to be 21 units long. That is, the vertical distance between the first portion 136 and the second portion 138 of the second light-shielding layer 134 is 21 units long.

Since the distance W is still an integer multiple of the sum of the distance S and the line width L, the pixel structure of this embodiment can also provide the effect of maintaining the uniformity of the luminance. Specifically, please see fig. 3B, wherein fig. 3B shows a relationship between the liquid crystal efficiency and the offset of the second light-shielding layer for different pixel structures. In fig. 3B, the horizontal axis represents the amount of displacement of the second light-shielding layer in micrometers, and the vertical axis represents the liquid crystal efficiency of the pixel structure when driven in percentage.

As shown in fig. 3B, the curves R7, R8 and R9 respectively represent the relationship between the liquid crystal efficiency and the light shielding layer shift amount of different pixel structures, and the difference between the pixel structures corresponding to the curves R7, R8 and R9 is the difference in the distance W (see fig. 3A). In contrast, the pixel structures corresponding to the curves R7, R8, and R9 are arranged in substantially the same manner as the pixel structures of the third embodiment, but the distances W are 20 micrometers, 21 micrometers, and 22 micrometers, respectively. The curves R7, R8, and R9 show a gentle curve R8 than the curves R7 and R9. As mentioned above, the luminance provided by the pixel structure corresponding to the curve R8 is relatively stable, so as to maintain the luminance uniformity of the pixel structure.

In summary, the display panel of the invention includes a substrate, an opposite substrate and a pixel structure disposed therebetween, and the pixel structure includes a second transparent conductive layer and a second light-shielding layer. The second transparent conductive layer includes a plurality of transparent conductive lines, and a vertical distance between two adjacent ones of the transparent conductive lines may be S, and a line width of each of the transparent conductive lines may be L. The second light shielding layer includes a first portion and a second portion, and a vertical distance between the first portion and the second portion may be W. The relationship between the parameters L, S and W may be W ═ N (L + S), where N is a positive integer, and the positive integer N may be selected according to the number of transparent conductive lines, such that W is an integer multiple of the sum of L and S. When the substrate and the opposite substrate which are combined are bent, even if the substrate and the opposite substrate are dislocated and the second light shielding layer and the corresponding light shielding position are deviated, the liquid crystal efficiency of the pixel structure can still be reduced through the configuration, so that the influence caused by the dislocation is reduced, and the problem of uneven brightness of the image quality of the display panel is further prevented.

Although the present invention has been described with reference to various embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention, and therefore, the scope of the invention is to be determined by the appended claims.

Claims

1. A pixel structure for a curved display is disposed on a substrate and includes:

a first data line disposed on the substrate;

a second data line disposed on the substrate;

a transparent conductive layer disposed on the substrate, wherein a vertical projection of the transparent conductive layer to the substrate is located between vertical projections of the first data line and the second data line to the substrate, the transparent conductive layer includes a plurality of transparent conductive lines, a vertical distance between two adjacent transparent conductive lines is S, and a line width of each transparent conductive line is L; and

a light shielding layer including a first portion and a second portion respectively located above the first data line and the second data line, and a vertical projection of the transparent conductive layer to the substrate is at least partially overlapped with a vertical projection of the light shielding layer to the substrate, wherein a vertical distance between the first portion and the second portion is W, and W is N (L + S), where N is a positive integer,

wherein the number of the transparent conductive lines in the transparent conductive layer is F, wherein F is a positive integer greater than 2, and 0< N ≦ (F-2).

2. The pixel structure of claim 1, wherein the light-shielding layer further comprises an opening between the first portion and the second portion, and a vertical projection of G of the transparent conductive lines in the transparent conductive layer onto the substrate falls within a vertical projection of the opening onto the substrate, wherein G is a positive integer less than F.

3. The pixel structure of claim 1, wherein the first data line has a first segment and a second segment connected to each other, and the first segment and the second segment of the first data line extend along a first direction and a second direction respectively, the first direction and the second direction having an obtuse angle, wherein the second data line has a third segment and a fourth segment connected to each other, and the third segment and the fourth segment of the second data line extend along the first direction and the second direction respectively.

4. The pixel structure of claim 3, wherein each of said transparent conductive lines has a fifth segment and a sixth segment connected thereto, and the fifth segment and the sixth segment of each of said transparent conductive lines extend along the first direction and the second direction, respectively.

5. The pixel structure of claim 4, wherein the first portion of the light-shielding layer has a seventh segment and an eighth segment connected to each other, and the seventh segment and the eighth segment of the first portion extend along the first direction and the second direction, respectively, wherein the second portion of the light-shielding layer has a ninth segment and a tenth segment connected to each other, and the ninth segment and the tenth segment of the second portion extend along the first direction and the second direction, respectively.

6. A pixel structure for a curved display is disposed on a substrate and includes:

a first data line disposed on the substrate;

a second data line disposed on the substrate;

a scanning line arranged on the substrate and staggered with the first data line and the second data line;

a switch element arranged on the substrate and electrically connected with one of the first data line and the second data line;

a first transparent conductive layer disposed on the substrate and covering the first data line, the second data line and the scan line;

an isolation layer disposed on the first transparent conductive layer;

a second transparent conductive layer disposed on the isolation layer and electrically connected to the switching element, wherein a vertical projection from the second transparent conductive layer to the substrate is located between a vertical projection from the first data line and a vertical projection from the second data line to the substrate, the second transparent conductive layer comprises a plurality of transparent conductive lines, a vertical distance between two adjacent transparent conductive lines is L, and a line width of each transparent conductive line is S; and

a light shielding layer including a first portion and a second portion respectively located above the first data line and the second data line, and a vertical projection of the second transparent conductive layer to the substrate at least partially overlapping with a vertical projection of the light shielding layer to the substrate, wherein a vertical distance between the first portion and the second portion is W, and W is N (L + S), where N is a positive integer,

wherein the number of the transparent conductive lines in the second transparent conductive layer is F, wherein F is a positive integer greater than 2, and 0< N ≦ (F-2).

7. The pixel structure of claim 6, further comprising a display medium layer disposed between the second transparent conductive layer and the light-shielding layer.

8. A display panel, comprising:

a substrate having a first curvature;

a counter substrate having a second curvature, wherein the first curvature is substantially the same as the second curvature; and

the pixel structure of any one of claims 1-7, disposed between the substrate and the opposite substrate.