TW201831972A - Pixel structure - Google Patents

Abstract

A pixel structure includes a scan line, a data line, a switching device, a first electrode, and a second electrode. The first electrode includes two first main portions and a plurality of first branch portions. The first branch portion includes an extending portion and two geometric structures disposed between the two first main portions. The first extending portion is disposed between the corresponding two geometric structures. The second electrode includes a second main portion and two second branch portions respectively extending from both sides of the second main portion. The second main portion is disposed between the two first main portions. The second branch portion includes a second extending portion and a trapezoidal structure. The trapezoidal structure connects the second main portion with the corresponding second extending portion. The first branch portions and the second branch portions are staggered.

Description

Pixel structure

The present invention relates to a pixel structure, and more particularly, to a pixel structure including a first electrode having a first trunk portion and a first branch portion and a second electrode having a second trunk portion and a second branch portion. .

With the maturity of Virtual Reality technology, many electronic products related to virtual reality have appeared on the market, such as head-mounted displays. In the prior art, electronic products related to virtual reality use computer software to create a virtual space, and use various technologies to affect the senses of the user, so that the user can feel like being in the virtual space.

In order to allow users to feel more realistic virtual space, the continuity of virtual images is particularly important. For an electronic product that uses a liquid crystal display device to display an image, the continuity of the image is highly correlated with the response time of the liquid crystal. The shorter the response time of the liquid crystal molecules, the better the continuity of the image displayed by the liquid crystal display device. Therefore, how to shorten the reaction time of liquid crystal molecules is an urgent problem to be solved.

The invention provides a pixel structure. By designing the first electrode and the second electrode in the pixel structure, the liquid crystal can have a short reaction time, thereby improving the liquid crystal efficiency.

The invention provides a pixel structure. By designing a common electrode and a pixel electrode in the pixel structure, the liquid crystal can have a short response time, thereby improving the liquid crystal efficiency.

A pixel structure of the present invention includes a scanning line, a data line, a switching element, a first electrode, and a second electrode. The switching element is electrically connected to the scanning line and the data line. The first electrode includes at least two first trunk portions and a plurality of first branch portions. The first trunk section is substantially parallel to the extending direction of the data line. Each of the first branch portions includes at least one first extension portion and at least two geometric structures. The geometric structure is located between the two first trunk portions, and the first extension portion is located between the corresponding two geometric structures. The width of the geometric structure in the extending direction is greater than the width of the first extending portion in the extending direction. The second electrode is separated from the first electrode. One of the first electrode and the second electrode is electrically connected to the switching element. The second electrode includes at least one second trunk portion and at least two second branch portions. The second trunk section is located between the two first trunk sections and is substantially parallel to the extending direction of the data line. At least two second branch portions extend from the second trunk portion, wherein at least two second branch portions are correspondingly connected to both sides of the second trunk portion, and at least one of the at least two second branch portions includes at least A second extension portion and at least one trapezoidal structure. The ladder structure is connected between the second trunk portion and the corresponding second extension portion. The first branch portions and the second branch portions are staggered along the extending direction of the data line.

A pixel structure of the present invention includes a scanning line and a data line, a switching element, a common electrode, and a pixel electrode. The switching element is electrically connected to the scanning line and the data line. The common electrode includes a first trunk portion and at least two first branch portions. The first trunk section is substantially parallel to the extending direction of the data line. At least two first branch portions extend from the first trunk portion. At least two first branch portions are respectively connected to both sides of the first trunk portion. At least one of the at least two first branch portions includes at least one first extension portion and at least one first trapezoidal structure. At least one first trapezoidal structure is connected between the first trunk portion and the corresponding first extension portion. The pixel electrode is separated from the common electrode and is electrically connected to the switching element. The pixel electrode includes a second trunk portion and at least two second branch portions. The second backbone is overlapped with the first backbone. At least two second branch portions extend from the second trunk portion. At least two second branch portions are respectively connected to both sides of the second trunk portion. At least one of the at least two second branch portions includes at least one second extension portion and at least one second trapezoidal structure. At least one second trapezoidal structure is connected between the second trunk portion and the corresponding second extension portion. The first branch portions and the second branch portions are staggered along the extending direction of the data line.

Based on the above, the first electrode in the pixel structure includes at least two first trunk sections and a plurality of first branch sections, the second electrode includes at least one second trunk section and at least two second branch sections, and the first branch The branch and the second branch are staggered along the extending direction of the data line. Therefore, the electric field formed by the first electrode and the second electrode can make the liquid crystal have a short reaction time, thereby further improving the liquid crystal efficiency. The first branch portion of the first electrode includes a geometric structure, and the second branch portion of the second electrode includes a trapezoidal structure. Therefore, the electric field of the first electrode and the second electrode can form isopotential lines with dense and dense changes, thereby making the flow direction of the liquid crystal drive and recovery substantially the same, and further shortening the response time of the liquid crystal.

Based on the above, the common electrode in the pixel structure includes a first trunk portion and at least two first branch portions, the pixel electrode includes a second trunk portion and at least two second branch portions, and the first branch portion and the second branch portion The branches are staggered along the extending direction of the data line. Therefore, the electric field formed by the common electrode and the pixel electrode can make the liquid crystal have a short reaction time, thereby further improving the liquid crystal efficiency.

In order to make the above features and advantages of the present invention more comprehensible, embodiments are hereinafter described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic top view of a pixel structure 100 according to an embodiment of the present invention. Referring to FIG. 1, the pixel structure 100 includes a scan line 120, a data line 130, a switching element TFT1, a first electrode 150, and a second electrode 140.

The switching element TFT1 includes, for example, a semiconductor layer 110, a gate electrode 122, a drain electrode 134, and a source electrode 132. A method of forming the switching element TFT1 includes, for example, forming a semiconductor layer 110 on a substrate. After the semiconductor layer 110 is formed, a gate insulation layer and a gate electrode 122 are sequentially formed on the semiconductor layer 110, and the gate electrode 122 is electrically connected to the scan line 120. An insulating layer covering the gate electrode 122 is formed. An opening O1 and an opening O2 are formed in the insulating layer. Next, a drain electrode 134 and a source electrode 132 electrically connected to the data line 130 are formed. The drain electrode 134 is electrically connected to the semiconductor layer 110 through the opening O2, and the source electrode 132 is electrically connected to the semiconductor layer 110 through the opening O1. connection. In this embodiment, the switching element TFT1 is a thin film transistor with a top gate structure, but the present invention is not limited thereto. In other embodiments, the switching element TFT1 may also be a thin film transistor with a bottom gate structure.

The pixel structure 100 has an insulating layer between the first electrode 150 and the switching element TFT1, and the first electrode 150 and the drain electrode 134 of the switching element TFT1 are electrically connected through the opening O3 in the insulating layer.

The first electrode 150 includes a first trunk portion 152A, a first trunk portion 152B, and a plurality of first branch portions 153. The first trunk portion 152A and the first trunk portion 152B are substantially parallel to the extending direction D1 of the data line 130. In this embodiment, a portion of the first trunk portion 152A overlaps with a portion of the data line 130, and a portion of the first trunk portion 152B overlaps with another portion of the data line 130 in an adjacent row, but the present invention is not limited thereto. In other embodiments, the first trunk section 152A and the first trunk section 152B may completely overlap with a part of the data line 130 and a part of the adjacent data line 130, respectively. In other embodiments, the first trunk portion 152A and the first trunk portion 152B are close to each other and do not overlap the data line 130 at all.

The first branch portion 153 of the first electrode 150 is located between the first trunk portion 152A and the first trunk portion 152B. Each of the first branch portions 153 includes a first extension 156, a geometric structure 154A, and a geometric structure 154B. The geometric structure 154A and the geometric structure 154B are located between the first trunk portion 152A and the first trunk portion 152B, the first extension portion 156 is located between the geometric structure 154A and the geometric structure 154B, and the first extension portion 156 is connected to the corresponding geometric structure Between 154A and geometry 154B. The width of the geometric structure 154A and the geometric structure 154B in the extending direction D1 is larger than the width of the first extending portion 156 in the extending direction D1. Specifically, a part of the geometric structure 154A far from the first extending portion 156 is in the extending direction D1. The width of the first extension portion 156 and the portion of the geometric structure 154B far from the first extension portion 156 in the extension direction D1 are larger than the width of the first extension portion 156 in the extension direction D1. In an embodiment, the shapes of the geometric structures 154A and 154B are trapezoidal, and the widest bottoms of the geometric structures 154A and 154B (that is, the portions having the largest width in the extending direction D1) are respectively different from the first main portion. The stem 152A and the first trunk 152B are connected, and the acute angle formed between the sidewall SW1 of the geometric structure 154A and the sidewall SW2 of the geometric structure 154B and the extending direction D1 of the data line 130 is 30 degrees to 75 degrees, but the present invention is not limited to this. this. In other embodiments, the geometric structure may be other geometric shapes. In an embodiment, the shape of the first extension portion 156 is rectangular, and the line width of the first extension portion 156 in the extension direction D1 is, for example, 2 μm to 4 μm.

In this embodiment, the first electrode 150 further includes a connection portion 151A and a connection portion 151B. The connection portion 151A and the connection portion 151B each connect the first trunk portion 152A and the first trunk portion 152B. For example, the connection portions 151A, The connection portion 151B, the first trunk portion 152A, and the first trunk portion 152B together form a ring structure or a mesh structure, and the connection portion 151A is electrically connected to the drain electrode 134 of the switching element TFT1. In this embodiment, the first trunk portion 152A, the first trunk portion 152B, the connection portion 151A, and the connection portion 151B collectively form an outer frame of the first electrode 150, and the first branch portion 153 is located at the first trunk portion 152A, the first The main frame 152B, the connection portion 151A, and the connection portion 151B are included in an outer frame. However, the present invention is not limited thereto. The first electrode 150 may not include the connection portion 151A and the connection portion 151B, and the first electrode 150 is connected to the drain electrode 134 of the switching element TFT1 through the first trunk portion 152A, the first trunk portion 152B, or the first branch portion 153. Electrical connection.

The second electrode 140 is separated from the first electrode 150. The second electrode 140 includes a second trunk portion 142, a second branch portion 143A, and a second branch portion 143B. The second trunk portion 142 is located between the first trunk portion 152A and the first trunk portion 152B, and is substantially parallel to the extending direction D1. For example, the second trunk portion 142 extends from a position adjacent to the connection portion 151A to a position adjacent to the connection portion 151B. The second branch portion 143A and the second branch portion 143B respectively extend from the second trunk portion 142, and the second branch portion 143A and the second branch portion 143B are correspondingly connected to both sides of the second trunk portion 142. The second branch portion 143A includes a second extension portion 146A and a trapezoidal structure 144A. The ladder structure 144A is connected between the second trunk portion 142 and the corresponding second extension portion 146A. The second branch portion 143B includes a second extension portion 146B and a trapezoidal structure 144B. The ladder structure 144B is connected between the second trunk portion 142 and the corresponding second extension portion 146B. The adjacent trapezoidal structure 144A and the trapezoidal structure 144B are, for example, arranged in a mirror image with respect to the second trunk portion 142. The second branch portions 143A and the second branch portions 143B and the first branch portions 153 are staggered along the extending direction D1, respectively.

In one embodiment, the acute angle between the sidewall SW3 of the trapezoidal structure 144A and the sidewall SW4 of the trapezoidal structure 144B and the extending direction D1 is, for example, 30 degrees to 75 degrees. Due to the design of the trapezoidal structure 144A and the trapezoidal structure 144B, the electric field of the first electrode and the second electrode can form isopotential lines with dense and dense changes, thereby driving and recovering the liquid crystal. The flow direction of the process is substantially the same, which further shortens the response time of the liquid crystal.

In one embodiment, the second extension portion 146A and the second extension portion 146B are rectangular, and the second extension portion 146A and the second extension portion 146B have the same line width in the extension direction D1. In one embodiment, the line width of the second extension portion 146A and the second extension portion 146B in the extension direction D1 is, for example, 2 μm to 4 μm. In an embodiment, the second extension portion 146A and the second extension portion 146B of the second electrode 140 extend below the first trunk portion 152A and the first trunk portion 152B of the first electrode 150, respectively, and can reduce data by this. The influence of the line 130 on the electric field formed by the first electrode 150.

In an embodiment, the distance between the first extension portion 156 of the first electrode 150, the second extension portion 146A of the adjacent second electrode 140, and the adjacent second extension portion 146B is, for example, 2 μm to 4 μm. In an embodiment, the distances between the first trunk portion 152A and the first trunk portion 152B of the first electrode 150 and the second trunk portion 142 of the adjacent second electrode 140 are 5 to 10 microns, respectively.

In this embodiment, the second electrode 140 is electrically connected to a common voltage, and the first electrode 150 is electrically connected to the switching element TFT1. However, the present invention is not limited thereto. In other embodiments, the first electrode 150 is electrically connected to a common voltage, and the second electrode 140 is electrically connected to the switching element TFT1. In other words, the present invention does not limit the second electrode 140 as a common electrode and the first electrode 150 as a pixel electrode. In this embodiment, the film layer where the second electrode 140 is located is located between the film layer where the first electrode 150 is located and the film layer where the data line 130 is located, but the present invention is not limited thereto. In other embodiments, the film layer where the first electrode 150 is located may be located between the film layer where the second electrode 140 is located and the film layer where the data line 130 is located. In other words, in other embodiments, the film layer where the first electrode 150 is located and the film layer where the second electrode 140 is located may be exchanged with each other.

In this embodiment, the design of the first electrode 150 and the second electrode 140 can divide the liquid crystal layer in the display into four types of liquid crystal operating regions with horizontal electric fields in different directions, and can separate liquid crystals in adjacent liquid crystal operating regions. The driving and recovery flow directions of the molecules are adjusted to be substantially the same direction, thereby further shortening the reaction time of the liquid crystal molecules.

FIG. 2 is a schematic top view of a pixel structure 200 according to an embodiment of the present invention. It must be noted here that the embodiment of FIG. 2 follows the component numbers and parts of the embodiment of FIG. 1, wherein the same or similar reference numerals are used to indicate the same or similar components, and the description of the same technical content is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, and the following embodiments are not repeated.

The difference between the pixel structure 200 of FIG. 2 and the pixel structure 100 of FIG. 1 is that the first electrode 250 and the second electrode 240 of the pixel structure 200 are different from the first electrode 150 and the second electrode 140 of the pixel structure 100. shape.

The first electrode 250 includes a first trunk portion 252A, a first trunk portion 252B, and a plurality of first branch portions 253. The first trunk portion 252A and the first trunk portion 252B are substantially parallel to the extending direction D1 of the data line 130.

The first branch portion 253 of the first electrode 250 is located between the first trunk portion 252A and the first trunk portion 252B. Each of the first branch portions 253 includes a first extension 256, a geometric structure 254A, a geometric structure 254B, a protrusion 258A, and a protrusion 258B. The geometric structure 254A and the geometric structure 254B are located between the first trunk 252A and the first trunk 252B, the first extension 256 is located between the geometry 254A and the 254B, and the first extension 256 is connected to the corresponding geometry 254A and geometry 254B. The width of the geometric structure 254A and the geometric structure 254B in the extending direction D1 is larger than the width of the first extending portion 256 in the extending direction D1. Specifically, a part of the geometric structure 254A far from the first extending portion 256 is in the extending direction D1. The width in the extension direction D1 and a portion of the geometric structure 254B far from the first extension portion 256 in the extension direction D1 are larger than the width of the first extension portion 256 in the extension direction D1. The protrusions 258A and 258B are located between the second trunk portion 2421 and the second trunk portion 2422 of the second electrode 240. The adjacent protrusions 258A and the protrusions 258B are arranged in a mirror image with respect to the first extension portion 256, for example.

In an embodiment, the shapes of the protrusions 258A and 258B include a triangle, wherein the bottoms of the protrusions 258A and 258B are connected to the first extension portion 256, and the protrusions 258A and 258B respectively face another adjacent one. The second extension portion 256 has a top angle of the protrusions 258A and 258B of 60 degrees to 150 degrees, and the top angle here refers to an angle away from the tip of the first extension portion 256 connected to the bottom thereof. In an embodiment of the present invention, the protrusions 258A and the protrusions 258B are correspondingly disposed on both sides of the second extension portion 256, and the vertices of the protrusions 258A and the protrusions 258B are aligned with each other.

The second electrode 240 is separated from the first electrode 250. The second electrode 240 includes a second trunk portion 2421, a second trunk portion 2422, a second branch portion 2431A, a second branch portion 2431B, a second branch portion 2432A, and a second branch portion 2432B. The second trunk portion 2421 and the second trunk portion 2422 are located between the first trunk portion 252A and the first trunk portion 252B and are substantially parallel to the extending direction D1.

The second branch portion 2431A and the second branch portion 2431B respectively extend from the second trunk portion 2421, and the second branch portion 2431A and the second branch portion 2431B are correspondingly connected to both sides of the second trunk portion 2421, and the adjacent second The branch portion 2431A and the second branch portion 2431B are exemplarily arranged in a mirror image with respect to the second trunk portion 2421. The second branch portion 2431A includes a second extension portion 2461A and a trapezoidal structure 2441A. The ladder structure 2441A is connected between the second trunk portion 2421 and the corresponding second extension portion 2461A. The second branch portion 2431B includes a second extension portion 2461B and a trapezoidal structure 2441B. The ladder structure 2441B is connected between the second trunk portion 2421 and the corresponding second extension portion 2461B.

The second branch portion 2432A and the second branch portion 2432B respectively extend from the second trunk portion 2422, and the second branch portion 2432A and the second branch portion 2432B are correspondingly connected to both sides of the second trunk portion 2422, and the adjacent second For example, the branch portion 2432A and the second branch portion 2432B are arranged in a mirror image with respect to the second trunk portion 2422. The second branch portion 2432A includes a second extension portion 2462A and a trapezoidal structure 2442A. The ladder structure 2442A is connected between the second trunk portion 2422 and the corresponding second extension portion 2462A. The second branch portion 2432B includes a second extension portion 2462B and a trapezoidal structure 2442B. The ladder structure 2442B is connected between the second trunk portion 2422 and the corresponding second extension portion 2462B.

In one embodiment, the second branch portion 2431B and the second branch portion 2432A are connected between the second trunk portion 2421 and the second trunk portion 2422. The second branch portion 2431B is located in the second trunk portion 2421 and the second branch portion 2432A. In between, the second branch portion 2432A is located between the second branch portion 2431B and the second trunk portion 2422. The second branch portion 2431A, the second branch portion 2431B, the second branch portion 2432A, and the second branch portion 2432B are arranged alternately with the first branch portion 253 along the extending direction D1.

FIG. 3 is a schematic top view of a pixel structure 300 according to an embodiment of the present invention. It must be noted here that the embodiment of FIG. 3 inherits the component numbers and parts of the embodiment of FIG. 2, in which the same or similar reference numerals are used to represent the same or similar components, and the description of the same technical content is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, and the following embodiments are not repeated.

The difference between the pixel structure 300 of FIG. 3 and the pixel structure 200 of FIG. 2 is that the first electrode 350 and the second electrode 340 of the pixel structure 300 are different from the first electrode 250 and the second electrode 240 of the pixel structure 200. shape.

The first electrode 350 of the pixel structure 300 includes a first trunk portion 352A, a first trunk portion 352B, and a plurality of first branch portions 353. The first trunk portion 352A and the first trunk portion 352B are substantially parallel to the extending direction D1 of the data line 130.

The first branch portion 353 of the first electrode 350 is located between the first trunk portion 352A and the first trunk portion 352B. Each of the first branch portions 353 includes a first extension 356, a geometric structure 354A, a geometric structure 354B, a protrusion 358A, a protrusion 358B, a protrusion 358C, and a protrusion 358D. The geometric structure 354A and the geometric structure 354B are located between the first trunk portion 352A and the first trunk portion 352B, the first extension portion 356 is located between the geometric structure 354A and the geometric structure 354B, and the first extension portion 356 is connected to the corresponding geometric structure Between 354A and geometry 354B. The width of the geometric structure 354A and the geometric structure 354B in the extending direction D1 is larger than the width of the first extending portion 356 in the extending direction D1. Specifically, a part of the geometric structure 354A far from the first extending portion 356 is in the extending direction D1. The width in the extension direction D1 and a part of the geometric structure 354B far from the first extension 356 are larger than the width in the extension direction D1 of the first extension 356. The protrusion 358A and the protrusion 358B are located between the second trunk portion 3422 and the second stem portion 3423 of the second electrode 340, and the protrusion 358C and the protrusion 358D are located on the second trunk portion 3421 and the second main portion of the second electrode 340 Between cadres 3422. In one embodiment of the present invention, the distance between the apex of the protrusion 358A and the apex of the protrusion 358C is about 10 micrometers to 20 microns, and the distance between the apex of the protrusion 358B and the apex of the protrusion 358D is about 10 The distance between the apex of the protrusion 358A and the apex of the protrusion 358C is approximately equal to the distance between the apex of the protrusion 358B and the apex of the protrusion 358D.

The second electrode 340 is separated from the first electrode 350. The second electrode 340 of the pixel structure 300 includes a second trunk portion 3421, a second trunk portion 3422, a second trunk portion 3423, a second branch portion 3431A, a second branch portion 3431B, a second branch portion 3432A, and a second branch portion. 3432B, the second branch portion 3433A, and the second branch portion 3433B. The second trunk section 3421, the second trunk section 3422, and the second trunk section 3423 are located between the first trunk section 352A and the first trunk section 352B and are substantially parallel to the extending direction D1.

The second branch portion 3431A and the second branch portion 3431B respectively extend from the second trunk portion 3421, and the second branch portion 3431A and the second branch portion 3431B are correspondingly connected to both sides of the second trunk portion 3421. The second branch portion 3431A includes a second extension portion 3461A and a trapezoidal structure 3441A. The ladder structure 3441A is connected between the second trunk portion 3421 and the corresponding second extension portion 3461A. The second branch portion 3431B includes a second extension portion 3461B and a trapezoidal structure 3441B. The ladder structure 3441B is connected between the second trunk portion 3421 and the corresponding second extension portion 3461B.

The second branch portion 3432A and the second branch portion 3432B respectively extend from the second trunk portion 3422, and the second branch portion 3432A and the second branch portion 3432B are correspondingly connected to both sides of the second trunk portion 3422. The second branch portion 3432A includes a second extension portion 3462A and a trapezoidal structure 3442A. The ladder structure 3442A is connected between the second trunk portion 3422 and the corresponding second extension portion 3462A. The second branch portion 3432B includes a second extension portion 3462B and a trapezoidal structure 3442B. The ladder structure 3442B is connected between the second trunk portion 3422 and the corresponding second extension portion 3462B.

The second branch portion 3433A and the second branch portion 3433B extend from the second trunk portion 3423, and the second branch portion 3433A and the second branch portion 3433B are correspondingly connected to both sides of the second trunk portion 3423. The second branch portion 3433A includes a second extension portion 3463A and a trapezoidal structure 3443A. The ladder structure 3443A is connected between the second trunk portion 3423 and the corresponding second extension portion 3463A. The second branch portion 3433B includes a second extension portion 3463B and a trapezoidal structure 3443B. The ladder structure 3443B is connected between the second trunk portion 3423 and the corresponding second extension portion 3463B.

In one embodiment, the second branch portion 3431B and the second branch portion 3432A are connected between the second trunk portion 3421 and the second trunk portion 3422, and the second branch portion 3432B and the second branch portion 3433A are connected to the second main portion. Between the cadres 3422 and the second main cadres 3423. The second branch portion 3431A, the second branch portion 3431B, the second branch portion 3432A, the second branch portion 3432B, the second branch portion 3433A, and the second branch portion 3433B are staggered with the first branch portion 353 along the extending direction D1, respectively.

FIG. 4 is a schematic top view of a pixel structure 400 according to an embodiment of the present invention. It must be noted here that the embodiment of FIG. 4 inherits the component numbers and parts of the embodiment of FIG. 2, in which the same or similar reference numerals are used to represent the same or similar components, and the description of the same technical content is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, and the following embodiments are not repeated.

The pixel structure 400 in FIG. 4 is different from the pixel structure 200 in FIG. 2 in that the first electrode 450 and the second electrode 440 of the pixel structure 400 are different from the first electrode 250 and the second electrode 240 of the pixel structure 200. shape.

The first electrode 450 includes a first trunk portion 452A, a first trunk portion 452B, and a plurality of first branch portions 453. The first trunk portion 452A and the first trunk portion 452B are substantially parallel to the extending direction D1 of the data line 130.

The first branch portion 453 of the first electrode 450 is located between the first trunk portion 452A and the first trunk portion 452B. Each of the first branch portions 453 includes a first extension 456, a geometric structure 454A, a geometric structure 454B, a protrusion 458A, a protrusion 458B, a protrusion 458C, a protrusion 458D, a protrusion 458E, and a protrusion 458F. The geometric structure 454A and the geometric structure 454B are located between the first trunk portion 452A and the first trunk portion 452B, the first extension portion 456 is located between the geometric structure 454A and the geometric structure 454B, and the first extension portion 456 is connected to the corresponding geometric structure Between 454A and geometry 454B. The width of the geometric structure 454A and the geometric structure 454B in the extending direction D1 is larger than the width of the first extending portion 456 in the extending direction D1. Specifically, a part of the geometric structure 454A far from the first extending portion 456 is in the extending direction D1. The width in the extension direction D1 and a portion of the geometric structure 454B far from the first extension portion 456 in the extension direction D1 are larger than the width of the first extension portion 456 in the extension direction D1. The protrusions 458A and 458B are located between the second trunk portion 4424 and the second trunk portion 4423 of the second electrode 440, and the protrusions 458C and 458D are located on the second trunk portion 4423 and the second trunk portion of the second electrode 440. 4422, and the protrusions 458E and 458F are located between the second trunk portion 4422 and the second trunk portion 4421 of the second electrode 440.

The second electrode 440 is separated from the first electrode 450. The second electrode 440 includes a second trunk portion 4421, a second trunk portion 4422, a second trunk portion 4423, a second trunk portion 4424, a second branch portion 4431A, a second branch portion 4431B, a second branch portion 4432A, and a second branch. The branch portion 4432B, the second branch portion 4433A, the second branch portion 4433B, the second branch portion 4434A, and the second branch portion 4434B. The second trunk section 4421, the second trunk section 4422, the second trunk section 4423, and the second trunk section 4424 are located between the first trunk section 452A and the first trunk section 452B and are substantially parallel to the extending direction D1.

The second branch portion 4431A and the second branch portion 4431B extend from the second trunk portion 4421, and the second branch portion 4431A and the second branch portion 4431B are correspondingly connected to both sides of the second trunk portion 4421. The second branch portion 4431A includes a second extension portion 4461A and a trapezoidal structure 4441A. The ladder structure 4441A is connected between the second trunk portion 4421 and the corresponding second extension portion 4461A. The second branch portion 4431B includes a second extension portion 4461B and a trapezoidal structure 4441B. The ladder structure 4441B is connected between the second trunk portion 4421 and the corresponding second extension portion 4461B.

The second branch portion 4432A and the second branch portion 4432B respectively extend from the second trunk portion 4422, and the second branch portion 4432A and the second branch portion 4432B are correspondingly connected to both sides of the second trunk portion 4422. The second branch portion 4432A includes a second extension portion 4462A and a trapezoidal structure 4442A. The ladder structure 4442A is connected between the second trunk portion 4422 and the corresponding second extension portion 4462A. The second branch portion 4432B includes a second extension portion 4462B and a trapezoidal structure 4442B. The ladder structure 4442B is connected between the second trunk portion 4422 and the corresponding second extension portion 4462B.

The second branch portion 4433A and the second branch portion 4433B respectively extend from the second trunk portion 4423, and the second branch portion 4433A and the second branch portion 4433B are correspondingly connected to both sides of the second trunk portion 4423. The second branch portion 4433A includes a second extension portion 4463A and a trapezoidal structure 4443A. The ladder structure 4443A is connected between the second trunk portion 4423 and the corresponding second extension portion 4463A. The second branch portion 4433B includes a second extension portion 4463B and a trapezoidal structure 4443B. The ladder structure 4443B is connected between the second trunk portion 4423 and the corresponding second extension portion 4463B.

The second branch portion 4434A and the second branch portion 4434B respectively extend from the second trunk portion 4424, and the second branch portion 4434A and the second branch portion 4434B are correspondingly connected to both sides of the second trunk portion 4424. The second branch portion 4434A includes a second extension portion 4464A and a trapezoidal structure 4444A. The ladder structure 4444A is connected between the second trunk portion 4424 and the corresponding second extension portion 4464A. The second branch portion 4434B includes a second extension portion 4464B and a trapezoidal structure 4444B. The ladder structure 4444B is connected between the second trunk portion 4424 and the corresponding second extension portion 4464B.

In an embodiment, the second branch portion 4431B and the second branch portion 4432A are connected between the second trunk portion 4421 and the second trunk portion 4422, and the second branch portion 4432B and the second branch portion 4433A are connected to the second trunk portion. 4422 and the second trunk portion 4423, and the second branch portion 4433B and the second branch portion 4434A are connected between the second trunk portion 4423 and the second trunk portion 4424. The second branch portion 4431A, the second branch portion 4431B, the second branch portion 4432A, the second branch portion 4432B, the second branch portion 4433A, the second branch portion 4433B, the second branch portion 4434A, and the second branch portion 4434B are respectively connected to the first One branch portions 453 are staggered along the extending direction D1.

In an embodiment, the first branch portion of the first electrode includes periodic protrusions, for example. The first branch portion of the first electrode and the second branch portion of the second electrode cause a change in horizontal distance due to the protrusion. The electric field formed by one electrode and the second electrode can divide the liquid crystal layer in the display into four liquid crystal operating regions with horizontal electric fields of different directions, and can drive and restore the liquid crystal molecules of adjacent liquid crystal operating regions to substantially By adjusting to the same direction, the reaction time of liquid crystal molecules is greatly shortened.

FIG. 5 is a schematic top view of a pixel structure 500 according to an embodiment of the present invention. It must be noted here that the embodiment of FIG. 5 inherits the component numbers and parts of the embodiment of FIG. 4, wherein the same or similar reference numerals are used to represent the same or similar components, and the description of the same technical content is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, and the following embodiments are not repeated.

The pixel structure 500 in FIG. 5 is different from the pixel structure 400 in FIG. 4 in that: the geometric structure and protrusions of the first electrode 550 of the pixel structure 500 and the geometric structure and protrusions of the first electrode 450 of the pixel structure 400 Has different shapes.

In this embodiment, the first electrode 550 includes a first branch portion 553, and the geometric structure 554A and the geometric structure 554B of the first branch portion 553 are semicircular. The geometric structure 554A and the geometric structure 554B are located between the first trunk portion 552A and the first trunk portion 552B, the first extension portion 556 is located between the geometric structure 554A and the geometric structure 554B, and the first extension portion 556 is connected to the corresponding geometric structure Between 554A and geometry 554B.

The shape of the protrusion 558A, the protrusion 558B, the protrusion 558C, the protrusion 558D, the protrusion 558E, and the protrusion 558F of the first electrode 550 includes a semicircle, and the protrusion 558A, the protrusion 558B, the protrusion 558C, and the protrusion The bottoms of 558D, protrusion 558E, and protrusion 558F are connected to the first extension portion 556. The protrusion 558A, the protrusion 558B, the protrusion 558C, the protrusion 558D, the protrusion 558E, and the protrusion 558F respectively face another adjacent second extension portion 556. In an embodiment of the present invention, the protrusion 558A, the protrusion 558C, and the protrusion 558E are disposed on one side of the second extension 556, and the protrusion 558B, the protrusion 558D, and the protrusion 558F are disposed on the other of the second extension 556. One side, and the protrusions 558A, 558C, and 558E are aligned with the vertices of the protrusions 558B, 558D, and 558F, respectively. For example, the apex of the protrusion 558A is connected to the apex of the protrusion 558B. The line may be substantially perpendicular to the extension direction of the second extension 556, the line connecting the apex of the protrusion 558C and the apex of the protrusion 558D may be substantially perpendicular to the extension direction of the second extension 556, the apex of the protrusion 558E, and the protrusion The connecting line of the apex of the first 558F may be substantially perpendicular to the extending direction of the second extending portion 556.

In this embodiment, the shapes of the geometric structure 554A, the geometric structure 554B, the protrusion 558A, the protrusion 558B, the protrusion 558C, the protrusion 558D, the protrusion 558E, and the protrusion 558F include a semicircle, but the present invention is not limited thereto . In other embodiments, the geometric structure and the convex shape may further include a semi-oval shape.

FIG. 6 is a schematic top view of a pixel structure 600 according to an embodiment of the present invention. It must be noted here that the embodiment of FIG. 6 inherits the component numbers and parts of the embodiment of FIG. 4, in which the same or similar reference numerals are used to represent the same or similar components, and the description of the same technical content is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, and the following embodiments are not repeated.

The difference between the pixel structure 600 of FIG. 6 and the pixel structure 400 of FIG. 4 is that the first electrode 650 of the pixel structure 600 and the first electrode 450 of the pixel structure 400 have different shapes.

In an embodiment of the present invention, the first electrode 650 includes a first branch portion 653, and the geometric structure 654A and the geometric structure 654B of the first branch portion 653 each include two corresponding curved surfaces, and the concave surfaces of the two corresponding curved surfaces. Toward the outer sides of the protrusions, respectively. For example, the geometric structure 654A includes corresponding sidewalls SW5 and SW6. The sidewalls SW5 and SW6 are two corresponding curved surfaces, and the concave surfaces of the sidewalls SW5 and SW6 face outward of the geometric structure 654A. The geometric structure 654A and the geometric structure 654B are located between the first trunk portion 652A and the first trunk portion 652B, the first extension portion 656 is located between the geometric structure 654A and the geometric structure 654B, and the first extension portion 656 is connected to the corresponding geometric structure Between 654A and geometry 654B.

The shapes of the protrusions 658A, 658B, protrusions 658C, protrusions 658D, protrusions 658E, and protrusions 658F of the first electrode 650 include a nail shape, and the protrusions 658A, protrusions 658B, protrusions 658C, and protrusions 658D The bottoms of the protrusions 658E and 658F are connected to the first extension 656. The protrusion 658A, the protrusion 658B, the protrusion 658C, the protrusion 658D, the protrusion 658E, and the protrusion 658F respectively face another adjacent second extension portion 656. In this embodiment, each of the protrusions includes two corresponding curved surfaces, and the concave surfaces of the two corresponding curved surfaces respectively face the outer sides of the protrusions. For example, the protrusion 658A includes corresponding side walls SW7 and SW8, the side walls SW7 and SW8 are two corresponding curved surfaces, and the concave surfaces of the side walls SW7 and SW8 face outward of the protrusion 658A. In an embodiment of the present invention, the protrusions 658A, 658C, and 658E are respectively disposed on both sides of the second extension portion 656 corresponding to the protrusions 658B, 658D, and 658F, and the protrusions 658A, The protrusions 658C and 658E are aligned with the vertices of the protrusions 658B, 658D, and 658F, respectively.

FIG. 7 is a schematic top view of a pixel structure 700 according to an embodiment of the present invention. It must be noted here that the embodiment of FIG. 7 follows the component numbers and parts of the embodiment of FIG. 2, in which the same or similar reference numerals are used to indicate the same or similar components, and the description of the same technical content is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, and the following embodiments are not repeated.

The difference between the pixel structure 700 of FIG. 7 and the pixel structure 200 of FIG. 2 is that the first electrode 750 of the pixel structure 700 and the first electrode 250 of the pixel structure 200 have different shapes.

The first electrode 750 of the pixel structure 700 includes a first trunk portion 752A, a first trunk portion 752B, a first trunk portion 752C, a first branch portion 753A, and a first branch portion 753B. The first branch portion 753A is located between the first trunk portion 752A and the first trunk portion 752B, and the first branch portion 753B is located between the first trunk portion 752B and the first trunk portion 752C. In this embodiment, the first trunk section 752B is located between the second trunk section 2421 and the second trunk section 2422 of the second electrode 240, and the second trunk section 2421 is located between the first trunk section 752A and the first trunk section 752B. The second trunk section 2422 is located between the first trunk section 752B and the first trunk section 752C. In one embodiment, the first trunk sections 752A, the first trunk sections 752B, the first trunk sections 752C, the second trunk sections 2421, and the second trunk sections 2422 are staggered along the extending direction D2 of the scanning line.

The first branch portion 753A of the first electrode 750 includes a first extension portion 756A, a geometric structure 754A, and a geometric structure 754B. The geometric structure 754A and the geometric structure 754B are located between the first trunk portion 752A and the first trunk portion 752B, and the first extension portion 756A is connected between the corresponding geometric structure 754A and the geometric structure 754B. The width of the geometric structure 754A and the geometric structure 754B in the extension direction D1 is greater than the width of the first extension 756A in the extension direction D1. Specifically, a part of the geometry 754A far from the first extension 756A is in the extension direction D1 The width in the extension direction D1 and a portion of the geometric structure 754B far from the first extension 756A in the extension direction D1 are larger than the width in the extension direction D1 of the first extension 756A. The first branch portion 753B includes a first extension portion 756B, a geometric structure 754B ', and a geometric structure 754C. The geometric structure 754B 'and the geometric structure 754C are located between the first trunk portion 752B and the first trunk portion 752C, and the first extension portion 756B is connected between the corresponding geometric structure 754B' and the geometric structure 754C. The width of the geometric structure 754B ′ and the geometric structure 754C in the extending direction D1 is greater than the width of the first extending portion 756 in the extending direction D1. Specifically, a part of the geometric structure 754B ′ far from the first extending portion 756B is extended. The width in the direction D1 and a portion of the geometric structure 754C far from the first extension 756B in the extension direction D1 are larger than the width of the first extension 756B in the extension direction D1. The first branch portion 753A is connected to both sides of the first trunk portion 752B in correspondence with the first branch portion 753B.

FIG. 8A is a schematic top view of a pixel structure 800 according to an embodiment of the present invention. FIG. 8B is a schematic top view of the second electrode 840 in FIG. 8A. FIG. 8C is a schematic top view of the first electrode 850 in FIG. 8A. FIG. 8A includes two pixel structures 800, FIG. 8B includes two second electrodes 840, and FIG. 8C includes two first electrodes 850. However, this does not mean that the present invention must form two pixel structures, two First electrode or two second electrodes. The pixel structure, the first electrode, or the second electrode of the present invention may also be formed one or three or more at a time as required.

The switching element TFT2 includes a semiconductor layer 810, a gate electrode 822, a drain electrode 834, and a source electrode 832. A method of forming the switching element TFT2 includes, for example, forming a semiconductor layer 810 on a substrate. After the semiconductor layer 810 is formed, a gate insulating layer, a gate electrode 822 and a scan line 820 are sequentially formed on the semiconductor layer 810, and the gate electrode 822 and the scan line 820 are electrically connected. An insulating layer covering the gate electrode 822 is formed. Openings O4 and O5 are formed in the insulating layer. Next, a drain electrode 834 and a source electrode 832 electrically connected to the data line 830 are formed. The drain electrode 834 is electrically connected to the semiconductor layer 810 through the opening O5, and the source electrode 832 is electrically connected to the semiconductor layer 810 through the opening O4. connection. In this embodiment, the shape of the semiconductor layer 810 of the switching element TFT2 is U-shaped, but the present invention is not limited thereto. In other embodiments, the shape of the semiconductor layer of the switching element is L-shaped or other geometric shapes. In this embodiment, the switching element TFT2 is a thin film transistor with a top gate structure, but the present invention is not limited thereto. In other embodiments, the switching element TFT2 may also be a thin film transistor with a bottom gate structure.

8A and 8C, the first electrode 850 includes a first trunk portion 852A, a first trunk portion 852B, and a plurality of first branch portions 853. The first trunk section 852A and the first trunk section 852B are substantially parallel to the extending direction D3 of the data line 830. In this embodiment, the first trunk section 852A and the first trunk section 852B may completely overlap with the partial data lines 830 of different rows, respectively, but the present invention is not limited thereto. In other embodiments, a portion of the first trunk portion 852A overlaps with a portion of the data line 830, and a portion of the first trunk portion 852B overlaps with a portion of the other data line 830. In other embodiments, the first trunk section 852A and the first trunk section 852B are close to each other and do not overlap the data line 830 at all.

The first branch portion 853 of the first electrode 850 is located between the first trunk portion 852A and the first trunk portion 852B. Each of the first branch portions 853 includes a first extension portion 856, a geometric structure 854A, and a geometric structure 854B. The geometric structure 854A and the geometric structure 854B are located between the first trunk portion 852A and the first trunk portion 852B, and the first extension portion 856 is located between the geometric structure 854A and the geometric structure 854B, and the first extension portion 856 is connected to the corresponding geometry Between structure 854A and geometry 854B. The width of the geometric structure 854A and the geometric structure 854B in the extension direction D3 of the data line 830 is larger than the width of the first extension 856 in the extension direction D3. Specifically, a part of the geometry 854A far from the first extension 856 The width in the extending direction D3 and a portion of the geometric structure 854B far from the first extending portion 856 in the extending direction D3 are larger than the width of the first extending portion 856 in the extending direction D3. In one embodiment, the shapes of the geometric structures 854A and 854B are trapezoidal, and the widest bottoms of the geometric structures 854A and 854B are connected to the first trunk portion 852A and the first trunk portion 852B, respectively. The acute angle between the side wall SW9 and the side wall SW10 of the geometric structure 854B and the extending direction D3 of the data line 830 is greater than or equal to 30 degrees and less than 90 degrees, but the present invention is not limited thereto. In other embodiments, the geometric structure may be other geometric shapes having a width in the extending direction D3 that is larger than the first extending portion 856. In an embodiment, the geometrical structure 854A and the geometrical structure 854B of the first electrode 850 have similar or identical shapes to the trapezoidal structure 844B and the trapezoidal structure 844A of the second electrode 840, respectively. In one embodiment, the shape of the first extension portion 856 is rectangular, and the line width of the first extension portion 856 is 0.5 μm to 5 μm.

In this embodiment, the first electrode 850 further includes a connecting portion 851A. The connecting portion 851A connects the first trunk portion 852A and the first trunk portion 852B. The area of the connection portion 851A is larger than the area of the first branch portion 853. An example of the position of the portion 851A is located on one side of the plurality of first branch portions 853, but the present invention is not limited thereto. In other embodiments, the first trunk portion 852A and the first trunk portion 852B of the first electrode 850 are only connected by the first branch portion 853. In this embodiment, the source electrode 832 and the drain electrode 834 of the switching element TFT2 completely overlap the first electrode 850, that is, completely overlap the connection portion 851A. However, the present invention is not limited thereto. In other embodiments, the source electrode 832 and the drain electrode 834 of the switching element TFT2 may only partially overlap the first electrode 850. In other embodiments, the source 832 and the drain 834 of the switching element TFT2 may not overlap the first electrode 850 at all.

An insulating layer is provided between the second electrode 840 and the switching element TFT2 in the pixel structure 800, and the second electrode 840 and the drain electrode 834 of the switching element TFT2 are electrically connected through the opening O6 in the insulating layer.

The second electrode 840 is separated from the first electrode 850. 8A and 8B, the second electrode 840 includes a second trunk portion 842, a second branch portion 843A, and a second branch portion 843B. The second trunk portion 842, the second branch portion 843A, and the second branch portion 843B are located between the first trunk portion 852A and the first trunk portion 852B of the first electrode 850, and the second trunk portion 842 is substantially parallel to the extending direction D3 . The second branch portion 843A and the second branch portion 843B extend from the second trunk portion 842, respectively, and the second branch portion 843A and the second branch portion 843B are correspondingly connected to both sides of the second trunk portion 842. The second branch portion 843A includes a second extension portion 846A and a trapezoidal structure 844A. The ladder structure 844A is connected between the second trunk portion 842 and the corresponding second extension portion 846A. The second branch portion 843B includes a second extension portion 846B and a trapezoidal structure 844B. The ladder structure 844B is connected between the second trunk portion 842 and the corresponding second extension portion 846B. The second branch portions 843A and the second branch portions 843B and the first branch portions 853 are staggered along the extending direction D3, respectively.

In this embodiment, the shapes of the second extending portion 846A and the second extending portion 846B are trapezoidal, but the present invention is not limited thereto. In other embodiments, the shapes of the second extending portion 846A and the second extending portion 846B are rectangular. In an embodiment, the acute angle between the side wall SW11 of the second extension 846A and the side wall SW12 of the second extension 846B and the extension direction D3 of the data line 830 is greater than or equal to 30 degrees and less than 90 degrees, and can be borrowed. The size of the included angle is adjusted to further shorten the response time of the liquid crystal.

FIG. 9A is a schematic top view of a pixel structure 900 according to an embodiment of the present invention. FIG. 9B is a schematic top view of the first electrode 950 in FIG. 9A. FIG. 9A includes two pixel structures 900 and FIG. 9B includes two first electrodes 950. However, this does not mean that the present invention must form two pixel structures, two first electrodes, or two second electrodes at the same time. The pixel structure, the first electrode, or the second electrode of the present invention may also be formed one or three or more at a time as required.

It must be noted here that the embodiment of FIG. 9A follows the component numbers and parts of the embodiment of FIG. 8A, in which the same or similar reference numerals are used to indicate the same or similar components, and the description of the same technical content is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, and the following embodiments are not repeated. The difference between the pixel structure 900 of FIG. 9A and the pixel structure 800 of FIG. 8A is that the first electrode 950 of the pixel structure 900 and the first electrode 850 of the pixel structure 800 have different shapes.

The first electrode 950 includes a first trunk portion 952A, a first trunk portion 952B, and a plurality of first branch portions 953. The first trunk section 952A and the first trunk section 952B are substantially parallel to the extending direction D3 of the data line 830. In this embodiment, the first trunk section 952A and the first trunk section 952B may completely overlap with the partial data lines 830 of different rows, respectively, but the present invention is not limited thereto. In other embodiments, a portion of the first trunk portion 952A overlaps with a portion of the data line 830, and a portion of the first trunk portion 952B overlaps with a portion of another data line 830. In other embodiments, the first trunk section 952A and the first trunk section 952B are close to each other and do not overlap the data line 830 at all.

The first branch portion 953 of the first electrode 950 is located between the first trunk portion 952A and the first trunk portion 952B. Each of the first branch portions 953 includes a first extension 956A, a first extension 956B, a geometric structure 954A, and a geometric structure 954B. The geometric structure 954A and the geometric structure 954B are located between the first trunk portion 952A and the first trunk portion 952B. The first extension 956A and the first extension 956B are located between the geometric structure 954A and the geometric structure 954B. The first extension 956A and the first extension 956B respectively connect the corresponding geometric structure 954A and the geometric structure 954B, and the first extension Both 956A and the first extension 956B are separated at least from the second trunk portion 842 of the second electrode 840. The width of the geometric structure 954A and the geometric structure 954B in the extending direction D3 is larger than the width of the first extending portion 956 in the extending direction D3. Specifically, a part of the geometric structure 954A far from the first extending portion 956A is in the extending direction D3. The width of the first extension portion 956A in the extension direction D3 is greater than that of a portion of the geometric structure 954B far from the first extension portion 956B in the extension direction D3 is greater than that of the first extension portion 956B in the extension direction D3. width. In an embodiment, the shapes of the geometric structures 954A and 954B are trapezoidal, and the widest bottoms of the geometric structures 954A and 954B are connected to the first trunk portion 952A and the first trunk portion 952B, respectively. The acute angle between the sidewall SW13 and the sidewall SW14 of the geometric structure 954B and the extending direction D3 of the data line 830 is greater than or equal to 30 degrees and less than 90 degrees, but the present invention is not limited thereto. In other embodiments, the geometric structure may be other geometric shapes whose width in the extending direction D3 is larger than the first extending portion 956A and the first extending portion 956B.

In this embodiment, the first electrode 950 further includes a connection portion 951A, which connects the first trunk portion 952A and the first trunk portion 952B. The area of the connection portion 951A is, for example, larger than the area of the first branch portion 953. However, The invention is not limited to this. In this embodiment, the source electrode 832 and the drain electrode 834 of the switching element TFT2 completely overlap the first electrode 950, that is, completely overlap the connection portion 951A. However, the present invention is not limited thereto. In other embodiments, the source 832 and the drain 834 of the switching element TFT2 may only partially overlap the first electrode 950. In other embodiments, the source 832 and the drain 834 of the switching element TFT2 may not overlap the first electrode 950 at all.

Fig. 9C is a schematic cross-sectional view taken along line AA 'of Fig. 9A. In this embodiment, a gate insulating layer 812 and a gate insulating layer 814 are sandwiched between the gate electrode 822 and the semiconductor layer 810, and an insulating layer 824 and an insulating layer 826 are located between the gate electrode 822 and the drain electrode 834. The opening O5 is located at Among the gate insulating layer 812, the gate insulating layer 814, the insulating layer 824, and the insulating layer 826, the drain electrode 834 and the semiconductor layer 810 are electrically connected through the opening O5. An insulating layer 836 is sandwiched between the drain electrode 834 and the second electrode 840. The opening O6 is located in the insulating layer 836, and the drain electrode 834 and the second electrode 840 are electrically connected through the opening O6. An insulating layer 845 is spaced between the first electrode 950 and the second electrode 840, and the first electrode 950 is separated from the second electrode 840. In other embodiments, the foregoing insulation layer or gate insulation layer may be increased or decreased in number according to actual needs.

FIG. 10A is a schematic top view of a pixel structure 1000 according to an embodiment of the present invention. Fig. 10B is a schematic cross-sectional view taken along the line BB 'of Fig. 10A. FIG. 10A includes two pixel structures 1000, but it does not mean that the present invention must form two pixel structures at the same time. The pixel structure of the present invention can also be formed one or three or more at a time as required.

It must be noted here that the embodiment of FIG. 10A inherits the component numbers and parts of the embodiment of FIG. 9A, in which the same or similar reference numerals are used to indicate the same or similar components, and the description of the same technical content is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, and the following embodiments are not repeated. The difference between the pixel structure 1000 of FIG. 10A and the pixel structure 900 of FIG. 9A is that the second electrode 840 of the pixel structure 900 and the drain electrode 834 of the switching element TFT2 are not formed at the same time, but the second electrode of the pixel structure 1000 is 1040 is formed simultaneously with the drain electrode 1034 of the switching element TFT3.

Please refer to FIG. 10B. In this embodiment, the switching element TFT3 includes a semiconductor layer 810, a gate electrode 822, a source electrode 832, and a drain electrode 1034. In one embodiment, the second electrode 1040 and the drain electrode 1034 belong to the same film layer, and both the second electrode 1040 and the drain electrode 1034 are formed at the same time. Therefore, the time required for the process can be shortened and the thickness of the pixel structure can be reduced. In one embodiment of the present invention, the second electrode, the data line, and the drain electrode all belong to the same film layer.

In summary, the first electrode in the pixel structure of the present invention includes at least two first trunk portions and a plurality of first branch portions, and the second electrode includes at least one second trunk portion and at least two second branch portions. The first branch portions and the second branch portions are staggered along the extending direction of the data line. Therefore, the electric field formed by the first electrode and the second electrode can make the liquid crystal have a short reaction time, thereby further improving the liquid crystal efficiency. The first branch portion of the first electrode includes a geometric structure, and the second branch portion of the second electrode includes a trapezoidal structure.

FIG. 11A is a schematic top view of a pixel structure 1100 according to an embodiment of the present invention. FIG. 11B is a schematic top view of the second electrode 1140 in FIG. 11A. FIG. 11C is a schematic top view of the first electrode 1150 in FIG. 11A. FIG. 11A includes two pixel structures 1100, FIG. 11B includes two second electrodes 1140, and FIG. 11C includes two first electrodes 1150. However, this does not mean that the present invention must form two pixel structures, two First electrode or two second electrodes. The pixel structure, the first electrode, or the second electrode of the present invention may also be formed one or three or more at a time as required.

It must be noted here that the embodiment of FIG. 11A follows the component numbers and parts of the embodiment of FIG. 8A, in which the same or similar reference numerals are used to indicate the same or similar components, and the description of the same technical content is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, and the following embodiments are not repeated.

Please refer to FIGS. 11A and 11C. The first electrode 1150 of the pixel structure 1100 includes a first trunk portion 1152, a first branch portion 1153A, and a first branch portion 1153B. The first trunk portion 1152 is substantially parallel to the extending direction D3. The first branch portion 1153A and the first branch portion 1153B respectively extend from the first trunk portion 1152, and the first branch portion 1153A and the first branch portion 1153B are correspondingly connected to both sides of the first trunk portion 1152. The first branch portion 1153A includes a first extension portion 1156A and a first trapezoidal structure 1154A. The first trapezoidal structure 1154A is connected between the first trunk portion 1152 and the corresponding first extension portion 1156A. The first branch portion 1153B includes a first extension portion 1156B and a first trapezoidal structure 1154B. The first trapezoidal structure 1154B is connected between the first trunk portion 1152 and the corresponding first extension portion 1156B.

11A and 11B, the second electrode 1140 includes a second trunk portion 1142, a second branch portion 1143A, and a second branch portion 1143B. The second trunk portion 1142 is substantially parallel to the extending direction D3. The second trunk section 1142 overlaps the first trunk section 1152. The second branch portion 1143A and the second branch portion 1143B respectively extend from the second trunk portion 1142, and the second branch portion 1143A and the second branch portion 1143B are correspondingly connected to both sides of the second trunk portion 1142. The second branch portion 1143A includes a second extension portion 1146A and a second trapezoidal structure 1144A. The second trapezoidal structure 1144A is connected between the second trunk portion 1142 and the corresponding second extension portion 1146A. The second branch portion 1143B includes a second extension portion 1146B and a second trapezoidal structure 1144B. The second trapezoidal structure 1144B is connected between the second trunk portion 1142 and the corresponding second extension portion 1146B. The first branch portion 1153A and the first branch portion 1153B are staggered with the second branch portion 1143A and the second branch portion 1143B along the extension direction D3 of the data line, respectively. In an embodiment of the present invention, the first electrode and the second electrode form a tree structure or a fishbone structure, as shown in FIG. 11A.

In this embodiment, the first electrode 1150 is a common electrode and the second electrode 1140 is a pixel electrode, but the present invention is not limited thereto. In other embodiments, the first electrode is a pixel electrode, and the second electrode is a common electrode. In this embodiment, the shapes of the first extension portion 1156A and the first extension portion 1156B are trapezoidal, but the present invention is not limited thereto. In other embodiments, the shapes of the first extension portion 1156A and the first extension portion 1156B are rectangular. In an embodiment, the acute angle between the side wall SW15 of the first extension 1156A and the extension direction D3 of the data line is greater than or equal to 30 degrees and less than 90 degrees. The side wall SW16 of the first extension 1156B and the data line The acute angle formed between the extending directions D3 is greater than or equal to 30 degrees and less than 90 degrees. In an embodiment, the acute angle between the side wall SW17 of the first trapezoidal structure 1154A and the extending direction D3 of the data line is 30 degrees to 60 degrees, and between the side wall SW18 of the first trapezoidal structure 1154B and the extending direction D3 of the data line The acute angle is between 30 and 60 degrees. In this embodiment, the first branch portions 1153A, 1153B of the first electrode 1150 have the same shape as the second branch portions 1143A, 1143B of the second electrode, but the present invention is not limited thereto. In other embodiments, the first branch portions 1153A, 1153B of the first electrode 1150 and the second branch portions 1143A, 1143B of the second electrode have different shapes, respectively.

To sum up, the common electrode in the pixel structure includes a first trunk portion and at least two first branch portions, the pixel electrode includes a second trunk portion and at least two second branch portions, and the first branch portion and the first branch portion The two branches are staggered along the extending direction of the data line. Therefore, the electric field formed by the common electrode and the pixel electrode can make the liquid crystal have a short reaction time, thereby further improving the liquid crystal efficiency.

Although the present invention has been disclosed as above with the examples, it is not intended to limit the present invention. Any person with ordinary knowledge in the technical field can make some modifications and retouching without departing from the spirit and scope of the present invention. The protection scope of the present invention shall be determined by the scope of the attached patent application.

100, 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1100‧‧‧ pixel structure

110, 810‧‧‧ semiconductor layer

120, 820‧‧‧scan line

122, 822‧‧‧Gate

130, 830‧‧‧ data line

132, 832‧‧‧Source

134, 834, 1034‧‧‧ Drain

140, 240, 340, 440, 840, 1040, 1140‧‧‧ second electrode

142, 2421, 2422, 3421, 3422, 3423, 4421, 4422, 4423, 4424, 842, 1142

143A, 143B, 2431A, 2431B, 2432A, 2432B, 3431A, 3431B, 3432A, 3432B, 3433A, 3433B, 4431A, 4431B, 4432A, 4332B, 4433A, 4433B, 4434A, 4434B, 843A, 843B, 1443A, 1433B Second branch

144A, 144B, 2441A, 2441B, 2442A, 2442B, 3441A, 3441B, 3442A, 3442B, 3443A, 3443B, 4441A, 4441B, 4442A, 4442B, 4443A, 4443B, 4444A, 4444B, 844A, 844B, 1144A, 1144B Trapezoidal structure

146A, 146B, 2461A, 2461B, 2462A, 2462B, 3461A, 3461B, 3462A, 3462B, 3463A, 3463B, 4461A, 4461B, 4462A, 4462B, 4463A, 4463B, 4464A, 4464B, 846A, 846B, 1146A, 1146B Second extension

150, 250, 350, 450, 550, 650, 750, 850, 950, 1150‧‧‧ first electrode

151A, 151B, 851A, 951A

152A, 152B, 252A, 252B, 352A, 352B, 452A, 452B, 552A, 552B, 652A, 652B, 752A, 752B, 752C, 852A, 852B, 952A, 952B, 1152 ...

153, 253, 353, 453, 553, 653, 753A, 753B, 753C, 853, 953, 1153A, 1153B ‧‧‧ First branch

154A, 154B, 254A, 254B, 354A, 354B, 454A, 454B, 554A, 554B, 654A, 654B, 754A, 754B, 754B ’, 754C, 854A, 854B, 954A, 954B, 1154A, 1154B ‧ ‧ geometric structure

156, 256, 356, 456, 556, 656, 756A, 756B, 856, 956A, 956B, 1156A, 1156B‧‧‧ First extension

258A, 258B, 358A, 358B, 358C, 358D, 458A, 458B, 458C, 458D, 458E, 458F, 558A, 558B, 558C, 558D, 558E, 558F, 658A, 658B, 658C, 658D, 658E, 658F ‧‧‧ Raised

824, 826, 836, 845‧‧‧ Insulation

812, 814‧‧‧ Gate insulation

D1, D2, D3 ‧‧‧ extension direction

SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18 ...

O1, O2, O3, O4, O5, O6

TFT1, TFT2, TFT3‧‧‧ switching element

FIG. 1 is a schematic top view of a pixel structure according to an embodiment of the present invention. FIG. 2 is a schematic top view of a pixel structure according to an embodiment of the present invention. FIG. 3 is a schematic top view of a pixel structure according to an embodiment of the present invention. FIG. 4 is a schematic top view of a pixel structure according to an embodiment of the present invention. FIG. 5 is a schematic top view of a pixel structure according to an embodiment of the present invention. FIG. 6 is a schematic top view of a pixel structure according to an embodiment of the present invention. FIG. 7 is a schematic top view of a pixel structure according to an embodiment of the present invention. 8A is a schematic top view of a pixel structure according to an embodiment of the present invention. FIG. 8B is a schematic top view of the second electrode in FIG. 8A. FIG. 8C is a schematic top view of the first electrode in FIG. 8A. FIG. 9A is a schematic top view of a pixel structure according to an embodiment of the present invention. FIG. 9B is a schematic top view of the first electrode in FIG. 9A. Fig. 9C is a schematic cross-sectional view taken along line AA 'of Fig. 9A. FIG. 10A is a schematic top view of a pixel structure according to an embodiment of the present invention. Fig. 10B is a schematic cross-sectional view taken along the line BB 'of Fig. 10A. 11A is a schematic top view of a pixel structure according to an embodiment of the present invention. FIG. 11B is a schematic top view of the second electrode in FIG. 11A. FIG. 11C is a schematic top view of the first electrode in FIG. 11A.

Claims (17)

A pixel structure includes: a scanning line and a data line; a switching element electrically connected to the scanning line and the data line; a first electrode including: at least two first trunk portions, substantially parallel to An extension direction of one of the data lines; and a plurality of first branch portions, each of the first branch portions including: at least one first extension portion; and at least two geometric structures located on the two first main portions Between the stems, and the first extension is located between the corresponding two geometric structures, wherein the width of the two geometric structures in the extension direction is greater than the width of the first extension in the extension direction; and A second electrode is separated from the first electrode, wherein one of the first electrode and the second electrode is electrically connected to the switching element, and the second electrode includes: at least one second trunk portion located between the two electrodes; Between the first trunk sections and substantially parallel to the extending direction of the data line; and at least two second branch sections extending from the second trunk section, wherein the at least two second branch sections respectively correspond to Connected to both sides of the second trunk portion, and at least one of the at least two second branch portions includes: at least a second extension portion; and at least one ladder structure connected to the second trunk portion and the corresponding Between the second extension portions, the first branch portions and the second branch portions are staggered along the extension direction of the data line. The pixel structure according to item 1 of the scope of patent application, wherein the first electrode is electrically connected to a common voltage, and the second electrode is electrically connected to the switching element. The pixel structure according to item 1 of the patent application scope, wherein the shape of the at least two geometric structures includes a trapezoid. The pixel structure according to item 1 of the patent application scope, wherein: each of the first branch portions of the first electrode includes: at least two first extension portions, the at least two first extension portions Do not connect to two corresponding geometric structures, and the at least two first extensions are separated at the second trunk portion. The pixel structure according to item 1 of the patent application scope, wherein the second branch portions of the second electrode are located between the two first trunk portions. The pixel structure according to item 1 of the scope of patent application, wherein the second branch portions of the second electrode respectively extend below the two first trunk portions of the first electrode. The pixel structure according to item 6 of the patent application scope, wherein: the first electrode includes: at least three first trunk sections, and the first branch sections are respectively located between corresponding two first trunk sections The second electrode includes: at least two of the second main sections, which are respectively located between the corresponding two of the first main sections; and at least four of the second branch sections, which are respectively located in each of the two second main sections On both sides of the cadres, at least two of the second branch sections are located between the two second trunk sections and are connected to each other between the corresponding two second trunk sections. The pixel structure according to item 1 of the scope of patent application, wherein: the second electrode includes at least two second trunk portions; and each of the first extension portions of the first electrode is connected to the corresponding at least two Between the geometric structures, and at least one of the first extensions includes a plurality of protrusions, located between the two second trunk portions of the second electrode. The pixel structure according to item 8 of the scope of patent application, wherein the shapes of the protrusions of the first electrode include a triangle, a semicircle, or a nail. The pixel structure according to item 8 of the scope of patent application, wherein the protrusions of the first electrode include a triangle, and the top angle of the protrusions is 60 degrees to 150 degrees, and the protrusions are respectively facing Adjacent to the second extension. The pixel structure according to item 1 of the scope of patent application, wherein the second electrode and the data line belong to the same film layer. The pixel structure according to item 1 of the scope of patent application, wherein the shapes of the first extensions are trapezoidal or rectangular, and the angle between the sidewalls of the first extensions and the extension direction of the data line is greater than Or equal to 30 degrees and less than 90 degrees. The pixel structure according to item 1 of the scope of patent application, wherein the shapes of the first extensions are rectangular, and the line width of the first extensions is 0.5 to 5 microns. The pixel structure according to item 1 of the scope of patent application, wherein the shapes of the geometric structures are trapezoidal, and the angle between the sidewalls of the geometric structures and the extension direction of the data line is greater than or equal to 30 degrees and less 90 degrees. A pixel structure includes: a scanning line and a data line; a switching element electrically connected to the scanning line and the data line; a common electrode including: a first trunk portion substantially parallel to the data line One extending direction; and at least two first branch portions extending from the first trunk portion, the at least two first branch portions correspondingly connected to both sides of the first trunk portion, and the at least two first branch portions At least one of a branch portion includes: at least one first extension portion; and at least one first trapezoidal structure connected between the first trunk portion and the corresponding first extension portion; and a pixel electrode, and The common electrode is separated and electrically connected to the switching element, wherein the pixel electrode includes: a second trunk section overlapping with the first trunk section; and at least two second branch sections from the second trunk section Extending, the at least two second branch portions are correspondingly connected to both sides of the second trunk portion, and at least one of the at least two second branch portions includes: at least one second extension portion; and at least one First A ladder structure, connected between the second extending portion and the second main portion corresponding to, wherein the plurality of first branch portions and the plurality of second branch portions are staggered along the extending direction of the data line. The pixel structure according to item 15 of the scope of patent application, wherein the shapes of the first extensions are trapezoidal or rectangular, and the angle between the sidewalls of the first extensions and the extension direction of the data line is 30 degrees or more and less than 90 degrees. The pixel structure according to item 15 of the scope of the patent application, wherein the angle between the sidewalls of the first trapezoidal structures and the extending direction of the data line is 30 degrees to 60 degrees.