TWI518423B - Display panel - Google Patents

Description

Display panel

The present invention relates to a display panel, and more particularly to a liquid crystal display panel.

Today's display panels are widely used in a variety of electronic products such as tablets, smart phones or flat-panel TVs. In the display panel, a main spacer and an auxiliary spacer are often disposed between the two substrates of the display panel. However, when the display panel is assembled, the main spacer may be displaced, causing the alignment film to be scratched to cause light leakage. The conventional method for solving the above problem is to increase the size of the light shielding pattern corresponding to the main spacer to reduce the light leakage phenomenon. However, when the size of the light-shielding pattern is increased, the aperture ratio of the display panel is thus lowered. In addition, since the light shielding patterns corresponding to different positions of the display panel generally have different sizes, this also causes different areas of the display panel to have different aperture ratios, resulting in inconsistent brightness distribution. As a result, the display screen is prone to dot mura phenomenon, which makes the display panel unable to provide a user with a desired visual effect.

The present invention provides a display panel which has good transmittance and can improve dot unevenness.

The invention provides a display panel comprising a pixel array substrate and a counter substrate. The pixel array substrate has a first region and a second region, and the first region and the second region are adjacent to each other. The pixel array substrate includes a plurality of first pixel structures and a plurality of second pixel structures. A plurality of first pixel structures are located within the first region. Each of the first pixel structures includes a first electrode structure. The first electrode structure includes a first trunk portion and a plurality of first branch portions, and the plurality of first branch portions are connected to the first trunk portion, wherein ends of the plurality of first branch portions are separated from each other. A plurality of second pixel structures are located in the second region, and each of the second pixel structures includes a second electrode structure. The second electrode structure includes a second trunk portion and a plurality of second branch portions, and the plurality of second branch portions are connected to the second trunk portion, wherein ends of the plurality of second branch portions are connected to each other. The opposite substrate is disposed opposite to the pixel array substrate.

Based on the above, in the display panel of the present invention, the ends of the plurality of first branch portions of the first electrode structure are separated from each other, whereby liquid crystal efficiency can be improved, and dot unevenness can be improved.

The above described features and advantages of the invention will be apparent from the following description.

10‧‧‧ display panel

100‧‧‧lower substrate

100A, 100B, 100C, 100D, 100E, 100F, 100G‧‧‧ pixel array substrate

110‧‧‧ pixel array

112, 112f‧‧‧ first main cadre

114, 114f‧‧‧ first branch

End of 114e, 214e, 114e’, 214e’‧‧

116, 116c, 116d‧‧‧ bends

120‧‧‧Display media

130‧‧‧Lighting pattern layer

140‧‧‧ opposite substrate

150‧‧‧electrode layer

212, 212f‧‧‧second main cadre

214, 214f‧‧‧Second branch

216, 216f‧‧‧ Connection Department

218‧‧‧Bend

BM, BM1, BM1e, BM1g, BM2, BM2g‧‧‧ shading pattern

CF‧‧‧ color filter pattern

DL‧‧‧ data line

PE1, PE1a, PE1f‧‧‧ first electrode structure

PE2, PE2a‧‧‧ second electrode structure

PS1‧‧‧Main spacer

PS2‧‧‧Auxiliary spacer

S1, S1a, S1f‧‧‧ first pixel structure

S2, S2a, S2f‧‧‧ second pixel structure

SL‧‧‧ scan line

T1‧‧‧ first active component

T2‧‧‧second active component

U‧‧‧Unit area

U1‧‧‧ first area

U2‧‧‧Second area

a, b‧‧‧ angle

1 is a cross-sectional view of a display panel in accordance with an embodiment of the present invention.

2A is a top plan view of a pixel array substrate of a display panel according to a first embodiment of the present invention.

2B is a top plan view showing a light shielding pattern of a display panel according to the first embodiment of the present invention.

3A is a top plan view of a pixel array substrate of a display panel according to a second embodiment of the present invention.

3B is a top plan view showing a light shielding pattern of a display panel according to a second embodiment of the present invention.

4A is a top plan view of a pixel array substrate of a display panel according to a third embodiment of the present invention.

4B is a top plan view showing a light shielding pattern of a display panel according to a third embodiment of the present invention.

5A is a top plan view of a pixel array substrate of a display panel according to a fourth embodiment of the present invention.

5B is a top plan view showing a light shielding pattern of a display panel according to a fourth embodiment of the present invention.

6A is a top plan view of a pixel array substrate of a display panel according to a fifth embodiment of the present invention.

6B is a top plan view showing a light shielding pattern of a display panel according to a fifth embodiment of the present invention.

7A is a top plan view of a pixel array substrate of a display panel according to a sixth embodiment of the present invention.

7B is a top plan view showing a light shielding pattern of a display panel according to a sixth embodiment of the present invention.

8A is a top plan view of a pixel array substrate of a display panel according to a seventh embodiment of the present invention.

8B is a top plan view showing a light shielding pattern of a display panel according to a seventh embodiment of the present invention.

1 is a cross-sectional view of a display panel in accordance with an embodiment of the present invention.

First embodiment

Referring to FIG. 1 together, FIG. 2A is a top view of a pixel array substrate of a display panel according to a first embodiment of the present invention, and FIG. 2B is a top view of a light shielding pattern of the display panel according to the first embodiment of the present invention. schematic diagram. Referring to FIG. 1 and FIG. 2A - FIG. 2B simultaneously, the display panel 10 of the present embodiment includes a lower substrate 100A, a pixel array layer 110, a display medium 120, a light shielding pattern layer 130, and a counter substrate 140. The display panel 10 of the present embodiment is exemplified by a liquid crystal display (LCD), which is, for example, a Fringe Field Switching (FFS) or a Multi-domain Vertical Alignment (MVA). A polymer sustained alignment (PSA) liquid crystal display panel, but the invention is not limited thereto.

The pixel array layer 110 is disposed on the lower substrate 100. The lower substrate 100 and the pixel array layer 110 may constitute a pixel array substrate 100A. The pixel array substrate 100A And the opposite substrates 140 are disposed opposite to each other. The material of the substrate 100 below the counter substrate 140 and the pixel array substrate 100A may each be glass, quartz, an organic polymer or other suitable material.

The display medium 120 is disposed between the pixel array substrate 100A and the second substrate 140. In the case where the display panel 10 is a liquid crystal display panel, the display medium 120 is, for example, a liquid crystal material.

The pixel array layer 110 includes a plurality of scanning lines SL, a plurality of data lines DL, a plurality of first pixel structures S1, and a plurality of second pixel structures S2. In the present embodiment, the scanning line SL extends in the X direction, and the data line DL extends in the Y direction. The scan line SL and the data line DL are exemplified by different film layers, and an insulating layer (not shown) is interposed therebetween. The material of the scanning line SL and the data line DL is, for example, metal. Further, the pixel array substrate 100A has a first region U1 and a second region U2. The first area U1 and the second area U2 are adjacent to each other. The pixel array substrate 100A includes a plurality of first pixel structures S1 and a plurality of second pixel structures S2. For convenience of description, FIG. 2A only shows four first pixel structures S1 and four second pixel structures S2, but those skilled in the art should understand that the scan line SL, the data line DL, the first picture The number of prime structures S1 and second pixel structures S2 is adjusted depending on design requirements.

As shown in FIG. 2A, four first pixel structures S1 are located in the first region U1. The first pixel structure S1 includes a first active device T1 and a first electrode structure PE1 electrically connected to the first active device T1. Each of the first pixel structures S1 is electrically connected to the corresponding scan line SL and the data line DL via the first active device T1. The first active component T1 may be any one of the art that is well known to those of ordinary skill in the art. The moving element is, for example, a thin film transistor (TFT), which will not be described herein.

The first electrode structure PE1 includes a first trunk portion 112 and a plurality of first branch portions 114, and the first branch portion 114 is connected to the first trunk portion 112. In particular, the ends 114e of the first branch portions 114 are separated from each other, so that the first electrode structure PE1 has an opening, and both ends of the opening are ends 114e. The material of the first electrode structure PE1 is, for example, a transparent conductive layer including a metal oxide such as indium-tin-oxide (ITO), indium zinc oxide (IZO), and aluminum tin oxide. Aluminum tin oxide (ATO), aluminum zinc oxide (AZO), indium gallium zinc oxide (IGZO), or other suitable oxide, or a stack of at least two of the foregoing Floor.

As shown in FIG. 2A, four second pixel structures S2 are located in the second region U2. The second pixel structure S2 includes a second active device T2 and a second electrode structure PE2 electrically connected to the second active device T2. Each of the second pixel structures S2 is electrically connected to the corresponding scan line SL and the data line DL via the second active device T2. The second active device T2 is, for example, a thin film transistor (TFT), but the present invention is not limited thereto.

The second electrode structure PE2 includes a second trunk portion 212, a plurality of second branch portions 214, and a connecting portion 216. The second branch portion 214 is connected to the second trunk portion 212, so that the second electrode structure PE2 is substantially in a closed pattern. The connecting portion 216 is located at the end 214e of the second branch portion 214 to connect the second branch portions 214 together. As a result, the end 214e of the second branch portion 214 of the second electrode structure PE2 is comparable to the first branch portion 114 of the first electrode structure PE1 separated from each other by the end 114e. This is connected together. The material of the second pixel electrode PE2 is, for example, a transparent conductive layer including a metal oxide such as indium tin oxide, indium zinc oxide, aluminum tin oxide, aluminum zinc oxide, indium antimony zinc oxide, or the like. A suitable oxide, or a stacked layer of at least two of the foregoing. In this embodiment, four first pixel structures S1 adjacent to each other are located in the first region U1, and four second pixel structures S2 adjacent to each other are located in the second region U2, and the first region U1 The second regions U2 are adjacent to each other without overlapping.

Referring to FIG. 1 and FIG. 2B together, the light shielding pattern layer 130 of the display panel 10 is disposed on the opposite substrate 140. The light shielding pattern layer 130 includes a plurality of first light blocking patterns BM1, second light blocking patterns BM2, and third light blocking patterns BM. The light shielding patterns BM, BM1, and BM2 are disposed between the color filter patterns CF to define a plurality of unit regions U. Referring to FIG. 1 and FIG. 2A - 2B simultaneously, the first light-shielding pattern BM1 is disposed in the first region U1, and the second light-shielding pattern BM2 is disposed in the second region U2. The first light blocking pattern BM1 and the second light blocking pattern BM2 are exemplified by a circle, an ellipse, a rectangle, or an irregular shape. For example, the first light blocking pattern BM1 may have a larger shielding area than the second light blocking pattern BM2. The light shielding pattern layer 130 completely shields the main spacer PS1 and the auxiliary spacer PS2. Each of the main spacers PS1 is substantially surrounded by at least three first pixel structures S1. In the present embodiment, each of the main spacers PS1 is surrounded by four first pixel structures S1. In this embodiment, the first light-shielding pattern BM1 is used to shield the main spacer PS1 that makes the liquid crystal spacing between the pixel array substrate 100A and the opposite substrate 140 uniform, so as to prevent the alignment film from being moved due to the movement of the spacer (not drawn Show) Light leakage caused by scratches. The second shading pattern BM2 is Used to shield the auxiliary spacer PS2. In the present embodiment, the size of the auxiliary spacer PS2 is smaller than the size of the main spacer PS1. The first pixel structure S1 is adjacent to the main spacer PS1 and away from the auxiliary spacer PS2. In addition, the third light-shielding pattern BM may overlap the scan line SL and the data line DL and be connected to the light-shielding patterns BM1 and BM2. The third light-shielding pattern BM is exemplified by a strip shape. Each of the first light blocking pattern BM1 and the second light blocking pattern BM2 overlaps with the scanning line SL and the data line DL. The widths of the first light blocking pattern BM1 and the second light blocking pattern BM2 are both greater than the width of the third light blocking pattern BM.

In the present embodiment, by providing the light-shielding pattern layer 130, it is possible to shield components and traces in the display panel 10 that are not intended to be viewed by the user, and to prevent light leakage. Further, the first light-shielding pattern BM1 having a larger size is disposed correspondingly to the vicinity of the main spacer PS1 of the first region U1. When the main spacer PS1 is displaced, the first light shielding pattern BM1 can further reduce the occurrence of light leakage. It is worth mentioning that the ends 114e of the first branch portions 114 of the first electrode structure PE1 are separated from each other. In this way, the problem that the first region U1 of the display panel 10 is reduced in brightness due to the decrease in the aperture ratio can be compensated, and the dot unevenness of the display panel 10 due to uneven brightness distribution can be avoided.

Further, the electrode layer 150 is further disposed on the opposite substrate 140. The electrode layer 150 is located between the light shielding pattern layer 130 and the display medium 120. In the present embodiment, the electrode layer 10 is entirely covered by the light shielding pattern layer 130, but the invention is not limited thereto. In the case where the display medium 120 is a liquid crystal molecule, the electrode layer 150 may generate an electric field between the plurality of first pixel structures S1 and the plurality of second pixel structures S2 to control or drive the liquid. Crystal molecule. The electrode layer 150 is a transparent conductive layer, and the material thereof includes a metal oxide such as indium tin oxide or indium zinc oxide. However, when the display panel 10 is a marginal electric field switching liquid crystal display panel, the electrode layer 150 may be selectively disposed on the opposite substrate 140, and the pixel array substrate 100A further includes a common electrode (not shown), and the common electrode may be A horizontal electric field is generated between the plurality of first pixel structures S1 and the plurality of second pixel structures S2 to control or drive the liquid crystal molecules.

It should be particularly noted that since the ends 114e of the first branch portions 114 of the first electrode structure PE1 adjacent to the first light-shielding pattern BM1 are separated from each other, the liquid crystal in the vicinity of the end 114e is inverted compared to the region near the end 214e. Further, the liquid crystal efficiency in the vicinity of the first light-shielding pattern BM1 is further increased to reduce the dot unevenness.

Second embodiment

Referring to FIG. 1 together, FIG. 3A is a top view of a pixel array substrate of a display panel according to a second embodiment of the present invention, and FIG. 3B is a top view of a light shielding pattern of the display panel according to the second embodiment of the present invention. schematic diagram. Referring to FIG. 1 and FIG. 3A-3B simultaneously, the display panel of the present embodiment is similar to the display panel 10 of FIG. 1, and only the differences between the two will be described below. The pixel array substrate 100B of the present embodiment includes a plurality of first pixel structures S1a located in the first region U1. For convenience of description, FIG. 3A shows only four first pixel structures S1a, but those of ordinary skill in the art should understand that the number of first pixel structures S1a is adjusted according to design requirements. The first pixel structure S1a is similar to the first pixel structure S1 in FIG. 2A, and the same or similar components are denoted by the same or similar symbols, and the description thereof will not be repeated. Each first pixel structure S1a package The first active component T1 and the first electrode structure PE1a electrically connected to the first active component T1 are included. The first pixel structure S1a differs from the first pixel structure S1 in that, in addition to the first trunk portion 112 and the plurality of first branch portions 114, the first electrode structure PE1a further includes a plurality of bent portions 116. The first branch portion 114 is connected to the first trunk portion 112, and the ends 114e of the first branch portion 114 are separated from each other. Each bend 116 extends from a corresponding one of the first branches 114. It is worth mentioning that the extending direction of the bent portion 116 is different from the extending direction of the first branch portion 114. As shown in FIG. 3A, the extending direction of each of the bent portions 116 has an angle a between the extending direction of the corresponding first branch portion 114. In the present embodiment, the angle a may be greater than 90 degrees and may be less than 180 degrees, although the invention is not limited thereto. In this embodiment, the openings of the first electrode structure PE1a in the same column may face in the same direction, and the openings of the first electrode structures PE1a in the adjacent two columns may respectively face different directions, as in the case of FIG. 3A, the upper column The opening of the first electrode structure PE1a in the middle faces the lower right and the opening of the first electrode structure PE1a in the next column faces the lower left.

The second region U2 of the pixel array substrate 100B includes a plurality of second pixel structures S2a. For convenience of explanation, FIG. 3A shows only four second pixel structures S2a, but it should be understood by those of ordinary skill in the art that the number of second pixel structures S2a is adjusted according to design requirements. The second pixel structure S2a is similar to the second pixel structure S2 in FIG. 2A, and the same or similar components are denoted by the same or similar symbols, and the description thereof will not be repeated. Each of the second pixel structures S2a includes a second active device T2 and a second electrode structure PE2a electrically connected to the second active device T2. The difference between the second electrode structure PE2a and the second pixel structure S2 is that, in addition to the second trunk portion 212, a plurality of The second electrode structure PE2a further includes a plurality of bent portions 218 in addition to the second branch portion 214 and the connecting portion 216. Each of the bent portions 218 extends from a corresponding one of the second branch portions 214. The connecting portion 216 connects the bent portions 218 extending from the second branch portion 214 together. As a result, the ends 214e of the second branch portions 214 of the second electrode structures PE2a may be connected to each other as compared with the first branch portions 114 of the first electrode structures PE1a separated from each other by the end 114e. It is worth mentioning that there is an angle b between the extending direction of each bent portion 218 and the extending direction of the corresponding second branch portion 214. In the present embodiment, the angle b is greater than 90 degrees and less than 180 degrees, but the invention is not limited thereto. In this embodiment, four first pixel structures S1a adjacent to each other are located in the first region U1, and four second pixel structures S2a adjacent to each other are located in the second region U2, and the first region U1 The second regions U2 are adjacent to each other without overlapping.

Referring to FIG. 1 and FIG. 3B together, the light shielding pattern layer 130 of the embodiment includes a plurality of first light shielding patterns BM1, a second light shielding pattern BM2, and a third light shielding pattern BM. The light shielding patterns BM, BM1, and BM2 are disposed between the color filter patterns CF to define a plurality of unit regions U. Referring to FIG. 1 and FIG. 3A - 3B simultaneously, the first light-shielding pattern BM1 is disposed in the first region U1, and the second light-shielding pattern BM2 is disposed in the second region U2. The first light blocking pattern BM1 and the second light blocking pattern BM2 are exemplified by a circle, an ellipse, a rectangle, or an irregular shape. For example, the first light blocking pattern BM1 may have a larger shielding area than the second light blocking pattern BM2. The light shielding pattern layer 130 completely shields the main spacer PS1 and the auxiliary spacer PS2. Each of the main spacers PS1 is substantially surrounded by at least three first pixel structures S1a. In the present embodiment, each of the main spacers PS1 is surrounded by four first pixel structures S1a. in In this embodiment, the first light-shielding pattern BM1 is used to shield the main spacers PS1 that make the liquid crystal spacing between the pixel array substrate 100B and the opposite substrate 140 uniform, so as to prevent the alignment film from being moved by the spacers (not shown). The light leakage caused by scratching occurs. The second light shielding pattern BM2 is used to shield the auxiliary spacer PS2. In the present embodiment, the size of the auxiliary spacer PS2 is smaller than the size of the main spacer PS1. The first pixel structure S1a is adjacent to the main spacer PS1 and away from the auxiliary spacer PS2. In addition, the third light-shielding pattern BM may overlap the scan line SL and the data line DL and be connected to the light-shielding patterns BM1 and BM2. The third light-shielding pattern BM is exemplified by a strip shape. Each of the first light blocking pattern BM1 and the second light blocking pattern BM2 overlaps with the scanning line SL and the data line DL. The widths of the first light blocking pattern BM1 and the second light blocking pattern BM2 are both greater than the width of the third light blocking pattern BM.

In the present embodiment, by providing the light-shielding pattern layer 130, it is possible to shield components and traces in the display panel that are not intended to be viewed by the user, and to prevent light leakage. Further, the first light-shielding pattern BM1 having a larger size is disposed correspondingly to the vicinity of the main spacer PS1 of the first region U1. When the main spacer PS1 is displaced, the first light shielding pattern BM1 can further reduce the occurrence of light leakage. It is worth mentioning that the ends 114e of the first branch portions 114 of the first electrode structure PE1 are separated from each other. In this way, the problem that the first region U1 of the display panel is reduced in brightness due to the decrease in the aperture ratio can be compensated, and the dot unevenness of the display panel due to uneven brightness distribution can be avoided.

It should be particularly noted that since the ends 114e of the first branch portions 114 of the first electrode structure PE1a adjacent to the first light shielding pattern BM1 are separated from each other, the phase Compared with the region near the end 214e, the liquid crystal inversion in the vicinity of the end 114e is further affected, thereby improving the liquid crystal efficiency in the vicinity of the first light-shielding pattern BM1 and reducing the dot unevenness.

Third embodiment

Referring to FIG. 1 together, FIG. 4A is a top view of a pixel array substrate of a display panel according to a third embodiment of the present invention, and FIG. 4B is a top view of a light shielding pattern of the display panel according to the third embodiment of the present invention. schematic diagram. Referring to FIG. 1 and FIG. 4A-4B, the pixel array substrate 100C of the present embodiment is similar to the pixel array substrate 100B of FIG. 3A, and the same or similar components are denoted by the same or similar symbols, and the description thereof will not be repeated. The difference between the pixel array substrate 100C and the pixel array substrate 100B is the length of the bent portion 116c. More specifically, compared with the bent portion 116 of the pixel array substrate 100B of FIG. 3A, the overlapping portion of the bent portion 116c of the pixel array substrate 100C and the light shielding pattern BM1 is more, in the pixel array substrate of FIG. 3A. In the 100B, the bent portions 116 and 218 and the connecting portion 216 are not overlapped with the light shielding pattern layer 130. However, in the present embodiment, in the pixel array substrate 100C of FIG. 4A, the bent portions 116c and 218 and the connecting portion 216 are formed. It overlaps with the light shielding pattern layer 130. Similarly, in the present embodiment, four first pixel structures S1a adjacent to each other are located in the first region U1, and four second pixel structures S2a adjacent to each other are located in the second region U2, One area U1 and the second area U2 are adjacent to each other without overlapping.

It should be particularly noted that since the ends 114e of the first branch portions 114 of the first electrode structure PE1a adjacent to the first light-shielding pattern BM1 are separated from each other, the liquid crystal in the vicinity of the end 114e is inverted compared to the region near the end 214e. Into In one step, the liquid crystal efficiency in the vicinity of the first light-shielding pattern BM1 is increased to reduce the dot unevenness.

Fourth embodiment

Referring to FIG. 1 , FIG. 5A is a top view of a pixel array substrate of a display panel according to a fourth embodiment of the present invention, and FIG. 5B is a top view of a light shielding pattern of the display panel according to the fourth embodiment of the present invention. schematic diagram. Referring to FIG. 1 and FIG. 5A-5B, the pixel array substrate 100D of the present embodiment is similar to the pixel array substrate 100B of FIG. 3A, and the same or similar components are denoted by the same or similar symbols, and the description thereof will not be repeated. The pixel array substrate 100D differs from the pixel array substrate 100B in that at least one bent portion 116d of the pixel array substrate 100D completely overlaps with the light blocking pattern BM1 and overlaps with the scanning line SL. Similarly, in the present embodiment, four first pixel structures S1a adjacent to each other are located in the first region U1, and four second pixel structures S2a adjacent to each other are located in the second region U2, One area U1 and the second area U2 are adjacent to each other without overlapping.

It should be particularly noted that since the ends 114e of the first branch portions 114 of the first electrode structure PE1a adjacent to the first light-shielding pattern BM1 are separated from each other, the liquid crystal in the vicinity of the end 114e is inverted compared to the region near the end 214e. Further, the liquid crystal efficiency in the vicinity of the first light-shielding pattern BM1 is further increased to reduce the dot unevenness.

Fifth embodiment

Referring to FIG. 1 together, FIG. 6A is a top view of a pixel array substrate of a display panel according to a fifth embodiment of the present invention, and FIG. 6B is a fifth embodiment of the present invention. A top view of a light blocking pattern of a display panel of an example. Referring to FIG. 1 and FIG. 6A-6B, the pixel array substrate 100E of the present embodiment is similar to the pixel array substrate 100B of FIG. 3A, and the same or similar components are denoted by the same or similar symbols, and the description thereof will not be repeated. The light shielding pattern layer 130 of the display panel includes a plurality of first light blocking patterns BM1e, second light blocking patterns BM2, and third light blocking patterns BM. The light shielding patterns BM, BM1e, and BM2 are disposed between the color filter patterns CF to define a plurality of unit regions U. Referring to FIG. 1 and FIG. 6A - 6B simultaneously, the first light-shielding pattern BM1e is disposed in the first region U1, and the second light-shielding pattern BM2 is disposed in the second region U2. The first light-shielding pattern BM1e and the second light-shielding pattern BM2 are exemplified by a circle, an ellipse, a rectangle, or an irregular shape. The second electrode structure PE2a in the four second pixel structures S2a corresponding to the second light-shielding pattern BM2 and surrounding the second light-shielding pattern BM2 is exemplified by a connection portion 216. For example, the first light blocking pattern BM1e may have a larger shielding area than the second light blocking pattern BM2. The shading patterns BM, BM1e, and BM2 completely shield the main spacer PS1 and the auxiliary spacer PS2 (as shown in FIG. 1). The difference between the pixel array substrate 100E and the pixel array substrate 100B is that each of the main spacers PS1 of the pixel array substrate 100E is substantially only between the two first pixel structures S1a. More specifically, as shown in FIG. 6B, each of the main spacers PS1 of the pixel array substrate 100E is disposed corresponding to the light shielding pattern BM1e.

It should be particularly noted that since the ends 114e of the first branch portions 114 of the first electrode structure PE1a adjacent to the first light-shielding pattern BM1e are separated from each other, the liquid crystal in the vicinity of the end 114e is inverted compared to the region near the end 214e. Further affected, thereby improving the liquid crystal efficiency in the vicinity of the first light-shielding pattern BM1e And cut point unevenness.

Sixth embodiment

7A is a top plan view of a pixel array substrate of a display panel according to a sixth embodiment of the present invention, and FIG. 7B is a top view of a light shielding pattern of the display panel according to the sixth embodiment of the present invention. Referring to FIG. 1 and FIG. 7A-7B, the first region U1 of the pixel array substrate 100F of the present embodiment includes a plurality of first pixel structures S1f. For convenience of explanation, FIG. 7A shows only four first pixel structures S1f, but it should be understood by those having ordinary knowledge in the art that the number of first pixel structures S1f is adjusted according to design requirements. Each of the first pixel structures S1f includes a first active device T1 and a first electrode structure PE1f electrically connected to the first active device T1. The first electrode structure PE1f includes a first trunk portion 112f and a plurality of first branch portions 114f, and the first branch portion 114f is connected to the first trunk portion 112f. The ends 114e' of the first branch portions 114f are separated from each other. In particular, the plurality of first branch portions 114f are m-shaped electrodes, but the present invention is not limited thereto.

As shown in FIG. 7A, the second region U2 of the pixel array substrate 100F includes a plurality of second pixel structures S2f. For convenience of explanation, FIG. 7A shows only four second pixel structures S2f, but it should be understood by those having ordinary knowledge in the art that the number of second pixel structures S2f is adjusted according to design requirements. The second pixel structure S2f includes a second active device T2 and a second electrode structure PE2f electrically connected to the second active device T2. The second electrode structure PE2f includes a second trunk portion 212f, a plurality of second branch portions 214f, and a connecting portion 216f. The second branch portion 214f is connected to the second trunk portion 212f. The connecting portion 216f is located at the end 214e' of the second branch portion 214f to move the second branch portion The 214f is joined together, and the connecting portion 216f is exemplified in a ring shape, and the ends 214e' of all the second branch portions 214f of the second electrode structure PE2f are connected. As a result, the ends 214e' of the second branch portions 214f of the second electrode structures PE2f can be connected to each other as compared with the first branch portions 114f of the first electrode structures PE1f separated from each other by the end 114e'. In this embodiment, four first pixel structures S1f adjacent to each other are located in the first region U1, and four second pixel structures S2f adjacent to each other are located in the second region U2, and the first region U1 The second regions U2 are adjacent to each other without overlapping.

It should be particularly noted that since the ends 114e' of the first branch portions 114 of the first electrode structure PE1f adjacent to the first light-shielding pattern BM1 are separated from each other, the region near the end 114e' is compared with the region near the end 214e'. The liquid crystal reversal is further affected, thereby improving the liquid crystal efficiency in the vicinity of the first light-shielding pattern BM1 and reducing dot unevenness.

Seventh embodiment

Referring to FIG. 1 , FIG. 8A is a top view of a pixel array substrate of a display panel according to a seventh embodiment of the present invention, and FIG. 8B is a top view of a light shielding pattern of the display panel according to the seventh embodiment of the present invention. schematic diagram. Referring to FIG. 1 and FIG. 8A-8B, the same or similar components of the pixel array substrate 100G of the present embodiment and the pixel array substrate of FIG. 3A are denoted by the same or similar symbols, and the description thereof will not be repeated. The pixel array substrate 100G has a first region U1 and a second region U2. The first area U1 and the second area U2 are adjacent to each other. The first region U1 of the pixel array substrate 100G of the present embodiment includes at least three first pixel structures S1a, and the second region U2 includes at least three second pixel structures S2a. Common knowledge in the field It should be understood that the number of scan lines SL, data lines DL, first pixel structure S1a, and second pixel structure S2a are adjusted according to design requirements.

As shown in FIG. 8A, the first electrode structure PE1a includes a first trunk portion 112 and a plurality of first branch portions 114, and the first branch portion 114 is connected to the first trunk portion 112. The ends 114e of the first branch portions 114 are separated from each other. The second electrode structure PE2a includes a second trunk portion 212, a plurality of second branch portions 214, and a connecting portion 216. The second branch portion 214 is connected to the second trunk portion 212. The connecting portion 216 is located at the end 214e of the second branch portion 214 to connect the second branch portions 214 together. As a result, the ends 214e of the second branch portions 214 of the second electrode structures PE2a may be connected to each other as compared with the first branch portions 114 of the first electrode structures PE1a separated from each other by the end 114e. The pixel array substrate 100G of the present embodiment does not define the types of the first electrode structure PE1a and the second electrode structure PE2a. For example, in addition to the first trunk portion 112 and the plurality of first branch portions 114, the first electrode structure PE1a further includes a plurality of bent portions (not shown). For example, in addition to the second trunk portion 212, the plurality of second branch portions 214, and the connecting portion 216, the second electrode structure PE2a further includes a plurality of bent portions (not shown).

Referring to FIG. 1 and FIG. 8B together, the light shielding pattern layer 130 of the present embodiment includes a plurality of first light shielding patterns BM1g, a second light shielding pattern BM2g, and a third light shielding pattern BM. The light shielding patterns BM, BM1g, and BM2g are disposed between the color filter patterns CF to define a plurality of unit regions U. Referring to FIG. 1 and FIG. 8A - 8B simultaneously, the first light-shielding pattern BM1g is disposed in the first region U1, and the second light-shielding pattern BM2g is disposed in the second region U2. First light shielding pattern BM1g and second The light-shielding pattern BM2g is exemplified by a circle, an ellipse, a rectangle, or an irregular shape. For example, the first light blocking pattern BM1g may have a larger shielding area than the second light blocking pattern BM2g. The light shielding pattern layer 130 completely shields the main spacer PS1 and the auxiliary spacer PS2. In the present embodiment, each of the main spacers PS1 is substantially surrounded by three first pixel structures S1a, and each of the auxiliary spacers PS2 is substantially surrounded by three second pixel structures S2a. In this embodiment, the first light-shielding pattern BM1g is used to shield the main spacer PS1 that makes the liquid crystal spacing between the pixel array substrate 100G and the opposite substrate 140 uniform, so as to prevent the alignment film from being moved due to the movement of the spacer (not drawn Show) Light leakage caused by scratches. The second light shielding pattern BM2g is used to shield the auxiliary spacer PS2. In the present embodiment, the size of the auxiliary spacer PS2 is smaller than the size of the main spacer PS1. The first pixel structure S1a is adjacent to the main spacer PS1 and away from the auxiliary spacer PS2. Further, the third light-shielding pattern BM may overlap the scanning line SL and the data line DL, and be connected to the light-shielding patterns BM1g and BM2g. The third light-shielding pattern BM is exemplified by a strip shape. Each of the first light blocking pattern BM1g and the second light blocking pattern BM2g overlaps with the scanning line SL and the data line DL. The widths of the first light-shielding pattern BM1g and the second light-shielding pattern BM2g are both greater than the width of the third light-shielding pattern BM.

It should be particularly noted that since the end 114e of the first branch portion 114 of the first electrode structure PE1a adjacent to the first light-shielding pattern BM1g is separated from each other, the liquid crystal in the vicinity of the end 114e is inverted compared to the region near the end 214e. Further, the liquid crystal efficiency in the vicinity of the first light-shielding pattern BM1g is further increased to reduce the dot unevenness. In the present embodiment, the first electrode structure PE1a having the ends 114e separated from each other adjacent to the first light-shielding pattern BM1g is The four first pixel structures S1a are taken as an example. However, the present invention is not limited thereto, and may be adjusted as needed. For example, three or five first pixel structures S1a adjacent to the first light blocking patterns BM1g are designed to be separated from each other. The first electrode structure PE1a of the end 114e.

As described above, in the display panel of the present invention, the main spacer having a larger size is disposed corresponding to the light shielding pattern in the vicinity of the first pixel structure. The first pixel structure includes a first electrode structure, and the first electrode structure includes a first stem portion and a plurality of first branch portions. In particular, the ends of the first branch portions of the first electrode structure are separated from each other. In this way, the liquid crystal efficiency in the vicinity of the main spacer having a large size can be improved, and the dot unevenness of the display panel can be improved.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any one of ordinary skill in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.

100A‧‧‧ pixel array substrate

112‧‧‧First Main Department

114‧‧‧First Branch

End of 114e‧‧

212‧‧‧Second Main Department

214‧‧‧Second branch

End of 214e‧‧

216‧‧‧Connecting Department

DL‧‧‧ data line

PE1‧‧‧first electrode structure

PE2‧‧‧Second electrode structure

S1‧‧‧ first pixel structure

S2‧‧‧second pixel structure

SL‧‧‧ scan line

T1‧‧‧ first active component

T2‧‧‧second active component

U1‧‧‧ first area

U2‧‧‧Second area

Claims (10)

A display panel includes: a pixel array substrate having a first region and a second region, wherein the first region and the second region are adjacent to each other, the pixel array substrate comprises: a plurality of first pixels a first electrode structure, the first electrode structure includes a first trunk portion and a plurality of first branch portions, and the first branch portions are The first trunk portion is connected, wherein ends of the first branch portions are separated from each other; and a plurality of second pixel structures are located in the second region, and each of the second pixel structures includes a second electrode structure The second electrode structure includes a second trunk portion and a plurality of second branch portions, and the second branch portions are connected to the second trunk portion, wherein ends of the second branch portions are connected to each other; a pair of substrates disposed opposite to the pixel array substrate; a main spacer located between the pixel array substrate and the opposite substrate and disposed in the first region; an auxiliary spacer located at the Pixel array substrate And the opposite substrate is disposed in the second region, wherein the size of the auxiliary spacer is smaller than the size of the main spacer, and the first pixel structures are adjacent to the auxiliary spacer and away from the auxiliary a spacer; and a light shielding pattern layer completely shields the main spacer and the auxiliary spacer. The display panel of claim 1, wherein the first electrode structure further comprises a plurality of bent portions, each bent portion being extended from a corresponding one of the first branch portions And extending, wherein the extending directions of the bent portions are different from the extending directions of the first branch portions. The display panel of claim 2, wherein an extending direction of each of the bent portions and an extending direction of the corresponding first branch portion have an angle greater than 90 degrees and less than 180 degrees. The display panel of claim 2, further comprising a light shielding pattern layer disposed on the opposite substrate to define a plurality of unit regions, the first and second pixel structures corresponding to the units The regional setting, wherein the bent portions partially overlap or completely overlap the light shielding pattern layer. The display panel of claim 1, wherein the second electrode structure further comprises a connecting portion at the ends of the second branch portions to connect the second branch portions together. The display panel of claim 1, wherein the second electrode structure further comprises: a plurality of bent portions, each bent portion extending from a corresponding one of the second branch portions; and a connecting portion The bent portions extending from the second branch portions are connected together. The display panel of claim 6, wherein an extending direction of each of the bent portions and an extending direction of the corresponding second branch portion have an angle greater than 90 degrees and less than 180 degrees. The display panel of claim 1, wherein: Each of the first pixel structures further includes a first active component, the first electrode structure is electrically connected to the first active component; and each of the second pixel structures further includes a second active component, the second electrode The structure is electrically connected to the second active component. The display panel of claim 1, wherein each of the main spacers is substantially surrounded by at least three of the first pixel structures. The display panel of claim 1, wherein each of the main spacers is substantially located between only the two first pixel structures.