TWI703390B - Display device - Google Patents

Abstract

A display device includes a first substrate, a plurality of data lines and a plurality of scan lines disposed on the first substrate, a plurality of pixel units disposed on the first substrate, a passivation layer covers the data lines, a first common electrode layer disposed on the passivation layer, a second substrate disposed opposite to the first substrate, and a second common electrode layer disposed on the second substrate. The data lines extend along a first direction, the scan lines extend along a second direction, and the first direction is perpendicular to the second direction. The pixel units electrically connect to the scan lines and the data lines. The first common electrode layer includes a plurality of first portion extending along the first direction. In a direction perpendicular to the first substrate, the first portions overlap with the data lines. The second common electrodes are in between the second substrate and the first common electrode layer.

Description

Display device

The present invention relates to a display device, and more particularly, to a display device having common electrodes with overlapping data lines.

With the popularization of flat display panels, liquid crystal display panels with excellent space utilization efficiency, high image quality, low power consumption, and no radiation have been widely used. Generally speaking, a liquid crystal display panel includes a pixel array substrate, a color filter substrate opposite to the pixel array substrate, and a liquid crystal layer sandwiched between the pixel array substrate and the color filter substrate. The pixel array substrate includes a plurality of pixel electrodes. The color filter substrate includes a plurality of color filter patterns and a light shielding pattern that shields the gaps between the color filter patterns (that is, a black matrix, commonly known as black matrix). Under ideal assembly conditions, the multiple color filter patterns of the color filter substrate are aligned with the multiple pixel electrodes of the pixel array substrate, and the light shielding pattern of the color filter substrate will shield one of the pixel electrodes. To prevent light leakage or color mixing.

However, as the resolution of the display panel increases, the requirements for assembly accuracy also increase. Therefore, it is impossible to further reduce the shading pattern to increase the pixel aperture ratio. In addition, the display panel may be impacted or slapped, resulting in shading patterns and pixel electricity Extremely unable to align and cause light leakage. In addition, the conductive vias provided to prevent the signal traces from breaking and failing will further reduce the pixel aperture ratio. Therefore, how to increase the pixel aperture ratio of the display panel and improve the display quality is an urgent issue for those skilled in the art to solve.

The present invention provides a display device, which can improve the pixel aperture ratio and performance of the display device, and has good display quality.

The display device of the present invention includes a first substrate, a plurality of data lines, and a plurality of scan lines are arranged on the first substrate, a plurality of pixel units are arranged on the first substrate, a flat layer covers the data lines, and a first common electrode layer The second substrate is disposed on the flat layer, the second substrate is disposed opposite to the first substrate, and the second common electrode layer is disposed on the second substrate. The data lines extend along the first direction, the scan lines extend along the second direction, and the first direction is perpendicular to the second direction. The pixel units are electrically connected to the scan lines and the data lines. The first common electrode layer has a plurality of first portions extending in a first direction, and in a direction perpendicular to the first substrate, the first portions overlap the data lines. The second common electrode layer is located between the second substrate and the first common electrode layer.

The display device of the present invention includes a first substrate, a plurality of data lines, and a plurality of scan lines are arranged on the first substrate, the first pixel unit and the second pixel unit are arranged on the first substrate, and the flat layer covers the data lines , The first common electrode layer is disposed on the flat layer, the spacer is disposed on the flat layer, the common electrode line is electrically connected to the first common electrode layer through the through hole, the second substrate is disposed opposite to the first substrate, and the second Total The electrode layer is arranged on the second substrate. The data lines extend along the first direction, the scan lines extend along the second direction, and the first direction is perpendicular to the second direction. The first pixel unit and the second pixel unit are electrically connected to the scan lines and the data lines, respectively. The first common electrode layer has a plurality of first portions extending along a first direction, and in a direction perpendicular to the first substrate, the first portions overlap the data lines. In the direction perpendicular to the first substrate, the spacer overlaps one of these scan lines. The second common electrode layer is located between the second substrate and the first common electrode layer. These scan lines include a first scan line and a second scan line. The data lines include a first data line, and the first data line intersects the first scan line and the second scan line. The first pixel unit and the second pixel unit are located between the first scan line and the second scan line. The first pixel unit has a first corner adjacent to the second scan line and the first data line. The spacer is adjacent to the first corner of the first pixel unit. In the first direction, the distance between the spacer and the through hole is 2 μm to 10 μm.

Based on the above, the display device of an embodiment of the present invention has a first common electrode layer arranged in a mesh shape, and in a direction perpendicular to the first substrate, the common electrode layer overlaps these data lines and partially overlaps these scan lines, thus overlapping data The display medium layer at the line and scan line can be rotated by the electric field between the first common electrode layer and the second common electrode layer. Thereby, the display medium layer can form an opaque area to absorb or block the light that obliquely penetrates the display medium layer from the first substrate. In this way, the probability of lateral light leakage and light mixing due to the thickness of the flat layer or the displacement of the shading pattern layer can be reduced, thereby improving the pixel aperture ratio, performance and display quality of the display device.

In order to make the above-mentioned features and advantages of the present invention more obvious and understandable, the following special The embodiments and the accompanying drawings are described in detail as follows.

10, 10A, 10B, 10C: display device

100: first substrate

110: gate insulation

120: flat layer

140, 140’: The first common electrode layer

141: Part One

142: Part Two

143: Part Three

144: Part Four

151: The first corner

152: second corner

160, 160 _n , 160 _n+1 , 160 _n+2 , 160 _n+3 : common electrode line

162: Trunk

164: branch

1641: first branch

170, 170A, 172: Through hole

180: Spacer

200: second substrate

220: shading pattern layer

240: second common electrode layer

301, 302: drive circuit

A-A’, B-B’: Section line

Q: Charge

C1, C2: storage capacitor

C _CS : Capacitor

CH1, CH1’: The first semiconductor channel layer

CH2: second semiconductor channel layer

D1, D1’: the first drain

D2: second drain

DL, DL _n , DL _n+1 , DL _n+2 , DL _n+3 : data line

DL1: The first data line

DL2: The second data line

DL3: The third data line

G1, G1’: first gate

G2: second gate

LC: display medium layer

PE: pixel electrode

PE1: The first pixel electrode

PE1A: The first sub-pixel electrode

PE1B: second sub-pixel electrode

PE2: second pixel electrode

PX: pixel unit

PX1, PX1’, PX1”: the first pixel unit

PX1A: The first sub-pixel area

PX1B: second sub-pixel area

PX2: The second pixel unit

S1, S1’: first source

S2: second source

SL, SL _n , SL _n+1 , SL _n+2 , SL _n+3 : scan line

SL1: First scan line

SL2: second scan line

T: Active component

T1, T1’, T1A: the first active component

T2, T1B: second active component

T1C: The third active component

V1: first voltage potential

V2: second voltage potential

W1: first width

W2: second width

X: second direction

Y: first direction

FIG. 1 is a schematic partial top view of a display device according to an embodiment of the invention.

FIG. 2 is a schematic cross-sectional view of the display device of FIG. 1 along the section line AA′.

FIG. 3 is a schematic cross-sectional view of the display device of FIG. 1 along the section line BB′.

4 is a schematic partial top view of a display device according to another embodiment of the invention.

FIG. 5 is a schematic partial top view of a display device according to another embodiment of the invention.

FIG. 6 is an equivalent circuit diagram of a display device according to still another embodiment of the invention.

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail in conjunction with the accompanying drawings. As those skilled in the art would realize, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present invention.

In the drawings, the thickness of each element and the like are exaggerated for clarity. Throughout the specification, the same reference numerals denote the same elements. It should be understood that when an element such as a layer, film, region, or substrate is referred to as being “on”, or “connected to,” or “overlapped with, another element,” it may be directly on another element. Up or It is connected to another element, or an intermediate element may also be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements. As used herein, "connected" can refer to physical and/or electrical connections.

It should be understood that although the terms "first", "second", "third", etc. may be used herein to describe various elements, components, regions, layers and/or parts, these elements, components, regions, and/or Or part should not be restricted by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Therefore, the “first element,” “component,” “region,” “layer,” or “portion” discussed below may be referred to as a second element, component, region, layer or portion without departing from the teachings herein.

The terminology used here is only for the purpose of describing specific embodiments and is not limiting. As used herein, unless the content clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms, including "at least one." "Or" means "and/or". As used herein, the term "and/or" includes any and all combinations of one or more of the related listed items. It should also be understood that when used in this specification, the terms "including" and/or "including" designate the presence of the features, regions, wholes, steps, operations, elements, and/or components, but do not exclude one or more The existence or addition of other features, regions as a whole, steps, operations, elements, components, and/or combinations thereof.

In addition, relative terms such as "lower" or "bottom" and "upper" or "top" may be used herein to describe the relationship between one element and another element, as shown in the figure. It should be understood that relative terms are intended to include different orientations of the device other than those shown in the figures. For example, if the device in one figure is turned over, it is described as Elements on the "lower" side of the will be oriented on the "upper" side of other elements. Therefore, the exemplary term "lower" may include an orientation of "lower" and "upper", depending on the specific orientation of the drawing. Similarly, if the device in one figure is turned over, elements described as "below" or "beneath" other elements will be oriented "above" the other elements. Thus, the exemplary terms "below" or "below" can include an orientation of above and below.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the present invention belongs. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted as having meanings consistent with their meanings in the context of related technologies and the present invention, and will not be interpreted as idealized or excessive The formal meaning, unless explicitly defined as such in this article.

The exemplary embodiments are described herein with reference to cross-sectional views that are schematic diagrams of idealized embodiments. Therefore, a change in the shape of the diagram as a result of, for example, manufacturing technology and/or tolerance can be expected. Therefore, the embodiments described herein should not be interpreted as being limited to the specific shape of the area as shown herein, but include, for example, shape deviations caused by manufacturing. For example, areas shown or described as flat may generally have rough and/or non-linear characteristics. In addition, the acute angles shown may be rounded. Therefore, the regions shown in the figures are schematic in nature, and their shapes are not intended to show the precise shape of the regions, and are not intended to limit the scope of the claims.

FIG. 1 is a partial top view schematic diagram of a display device according to an embodiment of the present invention. For the convenience of description and observation, only some components are schematically shown in FIG. 1. FIG. 2 is a schematic cross-sectional view of the display device of FIG. 1 along the section line AA′. Figure 3 is shown as A schematic cross-sectional view of the display device in FIG. 1 along the section line BB′. Please refer to FIGS. 1, 2 and 3, the display device 10 includes a first substrate 100, a plurality of data lines DL and a plurality of scan lines SL, a flat layer 120, a first common electrode layer 140, a second substrate 200, and a second substrate. The common electrode layer 240 and the plurality of pixel units PX are disposed on the first substrate 100 and are electrically connected to the scan lines SL and the data lines DL, respectively. As shown in FIG. 1, the display device 10 further includes a common electrode line 160 disposed on the first substrate 100. In addition, as shown in FIGS. 2 and 3, the display device 10 further includes a light-shielding pattern layer 220 disposed between the second substrate 200 and the second common electrode layer 240, and a display medium layer LC disposed on the first substrate 100 and the second substrate. Between 200. In other words, the display device 10 is, for example, a liquid crystal display (LCD) including a pixel array substrate and a color filter substrate, but the invention is not limited to this. The structure of the display device 10 will be briefly described in an embodiment below.

Please refer to FIGS. 1, 2 and 3. In this embodiment, a plurality of data lines DL and a plurality of scan lines SL are alternately arranged on the first substrate 100. In detail, the material of the first substrate 100 is, for example, glass, quartz, plastic, organic polymer, opaque/reflective material (for example: conductive material, metal, wafer, ceramic, or other applicable materials) or Other applicable materials. In some embodiments, the first substrate 100 may also be a flexible substrate, the material of which includes organic polymers, such as polyimide (PI), polyethylene naphthalate (PEN) or Other suitable materials are not limited to this invention.

Please refer to FIGS. 1 and 3, in this embodiment, a plurality of scan lines SL are disposed on the first substrate 100. The multiple scan lines SL include a first scan line SL1 and a second scan line SL The traces SL2 are provided on the first substrate 100 in parallel with each other. As shown in FIG. 1, these scan lines SL (including: the first scan line SL1 and the second scan line SL2) can be arranged along the first direction Y and extend along the second direction X. In this embodiment, the first direction Y is perpendicular to the second direction X. As shown in FIG. 1, the first scan line SL1 is located at the bottom of FIG. 1 and the second scan line SL2 is located at the top of FIG. 1, but the invention is not limited thereto.

As shown in FIGS. 1 and 2, the display device 10 further includes a common electrode line 160 disposed on the first substrate 100. The common electrode line 160 is disposed between the first scan line SL1 and the second scan line SL2, and the common electrode line 160 has a trunk 162 extending along the second direction X and a plurality of branches 164 extending along the first direction Y. From another perspective, the trunk 162 can be parallel to the scan line SL, and the branches 164 can be staggered perpendicularly to the trunk 162, but the invention is not limited thereto. In this embodiment, based on the consideration of conductivity, the common electrode line 160 and the scan line SL are generally made of metal materials, but other suitable conductive materials may also be used. For example: alloys, nitrides of metallic materials, oxides of metallic materials, oxynitrides of metallic materials, or stacked layers of metallic materials and other conductive materials. It should be noted that although FIG. 1 only shows one common electrode line 160, there can be multiple common electrode lines 160 and each of them is respectively disposed between any two adjacent scan lines SL, instead of only Figure 1 shows the limit.

As shown in FIGS. 2 and 3, the gate insulating layer 110 is disposed on the first substrate 100 and covers the scan line SL (for example, the second scan line SL2) and the common electrode line 160 (for example, the branch 164). It should be noted that Figure 1 is omitted for the sake of clarity. The gate insulating layer 110 is provided on the entire surface of the first substrate 100 to cover and overlap a plurality of scan lines SL and common electrode lines 160 (including the main stem 162 and the branches 164). In this embodiment, the material of the gate insulating layer 110 includes inorganic materials, organic materials, a combination of the foregoing materials, or other suitable materials. The above-mentioned inorganic material is, for example (but not limited to): silicon oxide, silicon nitride, silicon oxynitride, or a stacked layer of at least two of the above materials. The above-mentioned organic material is, for example (but not limited to): polymer materials such as polyimide resin, epoxy resin, or acrylic resin. In this embodiment, the gate insulating layer 110 is a single film layer, but the invention is not limited to this. In other embodiments, the gate insulating layer 110 may also be formed by stacking multiple film layers.

1 and FIG. 2, in this embodiment, a plurality of data lines DL are disposed on the gate insulating layer 110 on the first substrate 100. The data lines DL and the scan lines SL are located on different planes and interleave with each other. In detail, the plurality of data lines DL include the first data line DL1. In this embodiment, these data lines DL further include a second data line DL2 and a third data line DL3. The first data line DL1, the second data line DL2, and the third data line DL3 are disposed on the first substrate 100 parallel to each other and intersect the first scan line SL1 and the second scan line SL2. As shown in FIG. 1, these data lines DL (including: the first data line DL1, the second data line DL2, and the third data line DL3) can be arranged along the second direction X and extend along the first direction Y. As shown in FIG. 1, the first data line DL1 is located in the middle of FIG. 1, the second data line DL2 is located to the right of the first data line DL1 in FIG. 1, and the third data line DL3 is located in the first data line in FIG. The left side of DL1, but the present invention is not limited to this.

In this embodiment, based on conductivity considerations, the data line DL is generally used It is made of metal materials, but other suitable conductive materials can also be used. For example: alloys, nitrides of metallic materials, oxides of metallic materials, oxynitrides of metallic materials, or stacked layers of metallic materials and other conductive materials. It should be noted that although FIG. 1 only shows two scan lines SL and three data lines DL, in fact, there can be more scan lines SL and data files DL arranged alternately, and not only limited to the number shown in FIG. 1 .

As shown in FIG. 1, the display device 10 includes a plurality of pixel units PX located in the same column and arranged adjacently, but the present invention is not limited to this. In fact, a plurality of pixel units PX are arranged on the first substrate 100 in a two-dimensional array. These pixel units PX are electrically connected to the scan line SL and the data line DL. Generally speaking, each pixel unit PX can, for example, represent a sub-pixel of one color. For example, the pixel unit PX may be a red sub-pixel, a green sub-pixel, a blue sub-pixel, an orange sub-pixel, a yellow sub-pixel, or a white sub-pixel, but Not limited to this. In some embodiments, each pixel unit PX may further include sub-pixels of multiple colors, for example, including blue and green sub-pixels, red and green sub-pixels, or blue and red sub-pixels. However, the present invention is not limited to this.

In this embodiment, these pixel units PX may include a first pixel unit PX1 and a second pixel unit PX2, which are disposed on the first substrate 100, and may be located in the same column and adjacent to each other. As shown in FIG. 1, the first pixel unit PX1 is arranged on the left side of the first data line DL1, and the second pixel unit PX2 is arranged on the right side of the second data line DL2, and the first pixel unit PX1 and the second pixel unit PX1 The two-pixel unit PX2 is electrically connected to the corresponding scan line SL and the data line DL, respectively. In detail, the first pixel list The cell PX1 and the second pixel unit PX2 are both disposed between the first scan line SL1 and the second scan line SL2, and the first pixel unit PX1 is electrically connected to the second scan line SL2, and the second pixel unit PX2 is also It is electrically connected to the second scan line SL2. From another perspective, the first pixel unit PX1 and the second pixel unit PX2 can share the same second scan line SL2, but the invention is not limited to this. In addition, as shown in FIG. 1, the first pixel unit PX1 is electrically connected to the third data line DL3, and the second pixel unit PX2 is electrically connected to the first data line DL1, but the invention is not limited thereto. It should be noted here that FIG. 1 only shows two pixel units PX (for example: the first pixel unit PX1 and the second pixel unit PX2), in fact, the display device 10 may include more pixel units PX, for example, one hundred thousand, several million, or tens of millions of pixel units, and not limited to the number shown in FIG. 1.

In this embodiment, each pixel unit PX includes, for example, an active device T (labeled in FIG. 5) and a pixel electrode PE (labeled in FIG. 5). For example, the first pixel unit PX1 includes a first pixel electrode PE1 and a first active device T1, and the second pixel unit PX2 includes a second pixel electrode PE2 and a second active device T2. As shown in FIG. 1, the first pixel electrode PE1 can be electrically connected to the second scan line SL2 and the third data line DL3 through the first active device T1, and the second pixel electrode PE2 can be connected to the second active device T2. It is electrically connected to the second scan line SL2 and the first data line DL1. In this embodiment, the active device T is, for example, low temperature poly-Si (LTPS) or amorphous Si (a-Si), but the invention is not limited thereto. In this embodiment, the structures and materials of the first active device T1 and the second active device T2 are the same. For example, the first The active device T1 includes a first gate G1, a first semiconductor channel layer CH1, and a first source S1 and a first drain D1 electrically connected to the first semiconductor channel layer CH1, respectively. The second active device T2 includes a second gate G2, a second semiconductor channel layer CH2, and a second source S2 and a second drain D2 electrically connected to the second semiconductor channel layer CH2, respectively.

In detail, the first gate G1 and the second scan line SL2 of the first active device T1 are made of the same film layer and are electrically connected to each other. The second gate G2 of the second active device T2 and the second scan line SL2 are made of the same film layer and are electrically connected to each other. From another perspective, both the first gate G1 and the second gate G2 belong to the second scan line SL2.

The first semiconductor channel layer CH1 and the second semiconductor channel layer CH2 are respectively disposed on the second scan line SL2. For example, the first semiconductor channel layer CH1 is provided corresponding to the first gate G1, and the second semiconductor channel layer CH2 is provided corresponding to the second gate G2. In this embodiment, the materials of the first semiconductor channel layer CH1 and the second semiconductor channel layer CH2 include amorphous silicon, polycrystalline silicon, microcrystalline silicon, monocrystalline silicon, organic semiconductor materials, and oxide semiconductor materials (for example: indium zinc oxide). , Indium germanium zinc oxide, or other suitable materials, or a combination of the above), or other suitable materials, or containing dopants in the above materials, or a combination of the above, but the present invention does not This is limited.

In this embodiment, the first source S1 of the first active device T1 is electrically connected to the third data line DL3 and the first semiconductor channel layer CH1, and the second source S2 of the second active device T2 is electrically connected to the first Data line DL1 and second semiconductor channel layer CH2. The first drain D1 of the first active device T1 is electrically connected to the first semiconductor channel layer CH1, and the second drain D2 of the second active device T2 is electrically connected to the second semiconductor channel layer CH2. In this embodiment, the data line DL (including the first data line DL1 and the third data line DL3) and the first source electrode S1 and the second source electrode S2 are, for example, made of the same film layer, but the invention does not take this as limit. In this embodiment, the first drain electrode D1 and the second drain electrode D2 can also be fabricated on the same plane as the first source electrode S1 and the second source electrode S2, but the invention is not limited thereto.

In this embodiment, the first source S1 and the second source S2, and the first drain D1 and the second drain D2 are made of metal materials, but the present invention is not limited to this. According to other embodiments, the first source The electrode S1 and the second source electrode S2, and the first drain electrode D1 and the second drain electrode D2 can also use other suitable conductive materials. For example: alloys, nitrides of metallic materials, oxides of metallic materials, oxynitrides of metallic materials, or stacked layers of metallic materials and other conductive materials.

In this embodiment, the first active device T1 and the second active device T2 are, for example, bottom gate TFTs, but the invention is not limited to this. In other embodiments, the first active device T1 and the second active device T2 may also be top gate TFTs or other suitable thin film transistors.

Please refer to Figure 1, Figure 2 and Figure 3, the flat layer 120 is disposed on the gate insulating layer 110 and covers the data line DL (including: the first data line DL1, the second data line DL2 and the third data line DL3) and the first The active element T1 and the second active element T2. 1 for the sake of clarity of the drawing, the flat layer 120 is omitted, in fact the flat layer 120 It is formed on the gate insulating layer 110 over the entire surface. In this embodiment, the material of the flat layer 120 includes inorganic materials, organic materials, a combination of the foregoing materials, or other suitable materials. The above-mentioned inorganic material is, for example (but not limited to): silicon oxide, silicon nitride, silicon oxynitride, or a stacked layer of at least two of the above materials. The above-mentioned organic material is, for example (but not limited to): polymer materials such as polyimide resin, epoxy resin, or acrylic resin. In this embodiment, the flat layer 120 is a single film layer, but the invention is not limited to this. In other embodiments, the flat layer 120 may also be formed by stacking multiple film layers.

As shown in FIGS. 1, 2 and 3, the first pixel electrode PE1 is disposed on the flat layer 120 and is electrically connected to the first active device T1, and the second pixel electrode PE2 is also disposed on the flat layer 120 and It is electrically connected to the second active element T2, but the invention is not limited to this. As shown in FIG. 1, the first drain D1 of the first active device T1 is electrically connected to the first pixel electrode PE1 through a through hole 172, and the second drain D2 of the second active device T2 is through another through hole. 172 is electrically connected to the second pixel electrode PE2. Under the above arrangement, the third data line DL3 can be electrically connected by the first active device T1 and provide a driving signal to the first pixel electrode PE1, and the first data line DL1 can be driven by the second active device T2 It is electrically connected and provides a driving signal to the second pixel electrode PE2, but the invention is not limited to this.

In this embodiment, the materials of the first pixel electrode PE1 and the second pixel electrode PE2 can be transparent conductive materials, such as indium tin oxide (ITO), indium zinc oxide (IZO), aluminum tin oxide ( Metal oxides such as ATO), aluminum zinc oxide (AZO) or indium germanium zinc oxide (IGZO), but the present invention is not limited thereto. Under the above arrangement, the first substrate 100 is, for example, a pixel array substrate of a liquid crystal display panel. The invention is not limited to this.

As shown in FIGS. 1, 2 and 3, the first common electrode layer 140 is disposed on the flat layer 120. As shown in FIG. 1, the first common electrode layer 140 has a plurality of first portions 141 extending along the first direction Y and a plurality of second portions 142 extending along the second direction X. In this embodiment, these second parts 142 connect two adjacent first parts 141, but the invention is not limited to this. In some embodiments, it is also possible that only a part of these second parts 142 connect to two adjacent first parts 141, and the other part of these second parts 142 are only connected to one of two adjacent first parts 141. One without connecting the other. With the above arrangement, the first common electrode layer 140 having the first portions 141 and the second portions 142 can form a mesh or grid pattern in a plan view, but the invention is not limited to this. In this embodiment, the material of the first common electrode layer 140 may be a transparent conductive material, such as indium tin oxide (ITO), indium zinc oxide (IZO), aluminum tin oxide (ATO), aluminum zinc oxide (AZO) or indium germanium zinc oxide (IGZO) and other metal oxides, but the invention is not limited to this.

In this embodiment, the spacer 180 can be disposed on the second scan line SL2, but the invention is not limited to times. In fact, the spacer 180 can be arranged on any scan line SL. In other words, according to the needs of the user, the spacer 180 can also be disposed on the first scan line SL1, and is not limited to what is shown in FIG. 1. As shown in FIG. 1, the first pixel unit PX1 is, for example, a rectangle with four corners. One of the above four corners can be defined as the first corner 151. The first corner 151 is, for example, the upper right corner of the first pixel unit PX1 adjacent to the second scan line SL2 and the first data line DL1. In addition, the second pixel unit PX2 is also, for example, a rectangle with four corners, and One can be defined as the second corner 152. The second corner 152 is, for example, the upper left corner of the second pixel unit PX2 adjacent to the second scan line SL2 and the first data line DL1. In other words, the first corner 151 and the second corner 152 are respectively located on both sides of the first data line DL1. In this embodiment, the spacer 180 may be provided corresponding to the first corner 151 of the first pixel unit PX1. In other words, the spacer 180 may be disposed adjacent to the second scan line SL2 and the first data line DL1, but the invention is not limited to this. In addition, as shown in FIG. 1, the second active element T2 may be disposed adjacent to the second corner 152, but the present invention is not limited to this. In this way, the pixel aperture ratio can be improved.

Please refer to FIG. 2 and FIG. 3, the second substrate 200 is disposed opposite to the first substrate 100. In this embodiment, the material of the second substrate 200 is, for example, glass, quartz, plastic, organic polymer, or other applicable materials. In some embodiments, the first substrate 100 may also be a flexible substrate, the material of which includes organic polymers, such as polyimide (PI), polyethylene naphthalate (PEN) or Other suitable materials are not limited to this invention.

As shown in FIGS. 2 and 3, the light shielding pattern layer 220 is disposed on the second substrate 200. The orthographic projection of the light-shielding pattern layer 220 on the first substrate 100 completely overlaps the orthographic projection of the first portion 141 of the first common electrode layer 140 on the first substrate 100 and the orthographic projection of the first data line DL1 on the first substrate 100 . In other words, the orthographic projection of the first portion 141 of the first common electrode layer 140 on the first substrate 100 and the orthographic projection of the first data line DL1 on the first substrate 100 are located on the light-shielding pattern layer 220 on the first substrate 100 Within the orthographic projection. In addition, the orthographic projection of the second scan line SL2 on the first substrate 100 is also located within the orthographic projection of the light shielding pattern layer 220 on the first substrate 100. Inside. In this way, the light-shielding pattern layer 220 can cover the data line DL (for example, the first data line DL1) and the scan line SL (for example, the second scan line SL2). From another perspective, the light-shielding pattern layer 220 is, for example, a black matrix (BM) that shields the data line DL and the scan line SL disposed between the pixel units PX, so as to shield the display device 10 from being undesired. The components and traces that the user can see, and reduce the chance of light mixing and light leakage. In this embodiment, the material of the light-shielding pattern layer 220 is, for example, black resin or light-shielding metal (such as chromium) and other materials with low reflectivity, but the invention is not limited to this.

As shown in FIGS. 2 and 3, the second common electrode layer 240 is disposed on the second substrate 200 and covers the light shielding pattern layer 220. In this embodiment, the second common electrode layer 240 is, for example, formed on the entire surface of the second substrate 200 and is located between the second substrate 200 and the first common electrode layer 140. In this embodiment, the material of the second common electrode layer 240 may be a transparent conductive material, such as indium tin oxide (ITO), indium zinc oxide (IZO), aluminum tin oxide (ATO), aluminum zinc oxide (AZO) or indium germanium zinc oxide (IGZO) and other metal oxides, but the invention is not limited to this. In this embodiment, the first common electrode layer 140 and the second common electrode layer 240 are electrically connected to a common voltage potential. In this way, an electric field can be generated between the first common electrode layer 140 and the second common electrode layer 240.

In some embodiments, a color filter, a polarizer, or other optical elements may be sandwiched between the second substrate 200 and the second common electrode layer 240, and the present invention is not limited to this. . Under the above arrangement, the second substrate 200 is, for example, a color filter substrate of a liquid crystal display panel, but the present invention does not take this as limit.

2 and 3, the display medium layer LC is disposed on the pixel electrode PE of the first substrate 100 (for example, including: the first pixel electrode PE1 and the second pixel electrode PE2) and the second pixel electrode PE of the second substrate 200 Between the common electrode layers 240. The display medium layer LC may include liquid crystal molecules, electrophoretic display medium, or other applicable medium. In the following embodiments of the present invention, the display medium layer LC includes liquid crystal molecules as an example, but the present invention is not limited to this. Furthermore, the liquid crystal molecules in the following embodiments of the present invention may preferably be negative-type liquid crystals, taking liquid crystal molecules that can be rotated or switched by a vertical electric field as an example, but the present invention is not limited to this.

It is worth noting that, in this embodiment, the first common electrode layer 140 is disposed on the flat layer 120 in a mesh manner, and overlaps the data lines DL and partially overlaps the data lines DL in the direction perpendicular to the first substrate 100. Scan line SL. Specifically, the first portions 141 of the first common electrode layer 140 may completely overlap the data lines DL, and the second portions 142 may partially overlap the scan lines SL. From another perspective, as shown in FIGS. 2 and 3, the first common electrode layer 140 and the pixel electrodes (for example, the first pixel electrode PE1 and the second pixel electrode PE2) may be located on the same plane. And it has conductivity through the same material. Under the above arrangement, as shown in FIGS. 2 and 3, the light shielding pattern layer 220 overlaps the data line DL (for example, the first data line DL1) and the scan line SL (for example, the second scan line SL2). The display medium layer LC is located between the first common electrode layer 140 and the second common electrode layer 240. Therefore, like the display medium layer LC between the pixel electrode and the second common electrode 240, the liquid crystal molecules in the display medium layer LC will be affected by the first common electrode. The electric field between the electrode layer 140 and the second common electrode layer 240 is used to rotate, and an appropriate polarizer is arranged to form an opaque area within the orthographic projection of the light shielding pattern layer 220 on the first substrate 100.

In this way, compared with the conventional display device, the area between the light-shielding pattern layer and the signal line (such as the data line or the scan line) is an uncontrolled area of the liquid crystal. The display device 10 of this embodiment has the light-shielding pattern layer 220 and The liquid crystal molecules of the display medium layer LC between the first data line DL1 and/or the second scan line SL2 can be controlled by the rotation of the electric field between the first common electrode layer 140 and the second common electrode layer 240. Therefore, the opaque area formed by the display medium layer LC within the orthographic projection of the light-shielding pattern layer 220 on the first substrate 100 can absorb or block the light that obliquely penetrates the display medium layer LC from the first substrate 100. In other words, as shown in FIG. 2, the display medium layer LC overlapping the light shielding pattern 220 and the first data line DL1 between the first pixel electrode PE1 and the second pixel electrode PE2 is opaque. Thereby, the probability of lateral light leakage and light mixing caused by the thickness of the flat layer 120 or the displacement of the light-shielding pattern layer 220 can be reduced, and the required width of the light-shielding pattern layer 220 can be further reduced, thereby increasing the pixel aperture ratio.

In addition, compared to the conventional display device, the display medium layer overlapping the data line and the scan line can be affected by the electric field from the data line. In contrast, the first common electrode layer 140 of this embodiment can reduce the risk that the first data line DL1 affects the liquid crystal molecules in the display medium layer LC, further enhance the control of the liquid crystal molecules, and has good performance. Therefore, the display device 10 can control the liquid crystal molecules in the display medium layer LC overlapping the data line DL and the light shielding pattern layer 220 through the first common electrode layer 140, thereby reducing the probability of lateral light leakage and light mixing and increasing the pixel aperture ratio. Boost display The performance of the device 10 also has good display quality.

In addition, as shown in FIG. 3, an electric field may also be generated between two adjacent second portions 142 of the first common electrode layer 140 and the second common electrode layer 240. In this way, the liquid crystal molecules in the display medium layer LC overlapping the scan line SL (for example, the second scan line SL2) and the light-shielding pattern layer 220 can also be rotated to form an opaque area, thereby achieving the aforementioned technical effects.

1 and FIG. 2, in this embodiment, the first portion 141 of the first common electrode 140 has a first width W1, and the data line DL (for example, the first data line DL1) has a second width W2. In this embodiment, the first width W1≧the second width W2. In other words, the orthographic projection of the first data DL1 on the first substrate 100 is completely within the orthographic projection of the first portion 141 on the first substrate 100. In this way, when the first width W1 of the first portion 141 is defined as an opaque area, the opaque area can completely overlap the first data line DL1. In this way, the width of the shielding pattern 220 can be further reduced to increase the pixel aperture ratio and improve the display quality of the display device 10.

Please refer to FIG. 1, the display device 10 of this embodiment further includes a plurality of through holes 170. The through hole 170 is, for example, an opening that penetrates the planarization layer 120 and the gate insulating layer 110 to expose the common electrode line 160. Under the above arrangement, the common electrode line 160 can be electrically connected to the first common electrode layer 140 through the through hole 170. In detail, the through hole 170 may overlap the common electrode line 160. As shown in FIG. 1, the common electrode line 160 includes a main stem 162 and a branch 164 extending along the first direction Y from the main stem 162. The backbone 162 may partially overlap the first pixel electrode PE1 and the second pixel electrode PE2, the first data line DL1, the second data line DL2, the third data line DL3, and the first common electrode layer Multiple first parts 141 of 140. In this embodiment, the plurality of branches 164 are located between the first portion 141 and the first pixel electrode PE1 and/or the second pixel electrode PE2 and are parallel to the first portion 141. From another perspective, the branches 164 are, for example, shielding metal patterns arranged on both sides of the data line DL, but the invention is not limited to this.

In this embodiment, the branch 164 between the first data line DL1 and the first pixel electrode PE1 may be defined as the first branch 1641. The first branch 1641 extends along the first direction Y and connects to the trunk 162. As shown in FIG. 1, the through hole 170 may be disposed in the first corner 151 of the first pixel unit PX1 and overlap the first branch 1641. In more detail, the first common electrode layer 140 further includes a third portion 143 extending along the second direction X. The third part 143 is parallel to the second part 142 and connected to the first part 141. As shown in FIG. 1, the third portion 143 is located between the second portion 142 and the first pixel electrode PE1, and the third portion 143 partially overlaps the second scan line SL2, but does not overlap the first pixel electrode PE1. In this embodiment, the second portion 142 may also partially overlap the second scan line SL2, and the vertical projection of the second portion 142 and/or the third portion 143 on the first substrate 100 and the second scan line SL2 on the first substrate 100 The width of the overlapped portion of the vertical projection on the substrate 100 is 0.5 μm to 4 μm, and preferably 2 μm to 4 μm. In addition, at the first corner 151, the third portion 143 partially overlaps the first branch 1641. In more detail, the first branch 1641 is provided with a through hole 170 where it overlaps the third portion 143. In other words, the through hole 170 may expose the first branch 1641 at the first corner 151, so that the first branch 1641 of the common electrode line 160 can be electrically connected to the third portion 143 of the first common electrode layer 140 through the through hole 170 , But the present invention is not limited to this.

Under the above configuration, when the common electrode line 160 is disconnected, the common The signal of the electrode line 160 may be transmitted to the first common electrode layer 140 through the through hole 170 (for example, the through hole 170 located at the first corner 151). The above-mentioned signal can be transmitted along the grid-like first common electrode layer 140 overlapping the data line DL and the scan line SL to another through hole (not shown) to be transmitted back to the common electrode line 160. In this way, the risk of signal abnormality or failure due to disconnection of the common electrode line 160 can be reduced, and the display area space occupied by the through hole 170 can be reduced to increase the aperture ratio, increase the display area of the display device 10, and thus improve performance and Display quality.

In addition, as shown in FIG. 1, the spacer 180 provided on the second scan line SL2 may be provided corresponding to the first corner 151 of the first pixel unit PX1. Under the above arrangement, the spacer 180 and the through hole 170 may be arranged adjacent to the first corner 151. For example, in this embodiment, in the first direction Y, the distance between the spacer 180 and the through hole 170 may be, for example, 2 μm to 15 μm. In a preferred embodiment, the distance between the spacer 180 and the through hole 170 may be 2 μm to 7 μm. In this way, the spacers 180 and the through holes 170 can be arranged correspondingly to reduce the width of the light-shielding pattern layer 220 (shown in FIGS. 2 and 3), thereby further increasing the pixel aperture ratio, and improving the display quality of the display device 10.

In some embodiments, in addition to the spacer 180 corresponding to the first corner 151 of the first pixel unit PX1, the first color corresponding to the first pixel unit PX1 corresponding to the spacer 180 may also be blue. For example, the first pixel unit PX1 may correspond to a first color, and the second pixel unit PX2 may correspond to a second color. For example, the first color is blue and is different from the second color, and the second color is, for example, red or green or other colors. In the above embodiment, the through hole 170 and the spacer 180 can correspond to the first color setting, but is not limited to this. With the above configuration, the transmittance of the display device 10 can be further improved, and the display quality of the display device 10 can be improved.

In short, since the display device 10 of this embodiment has the first common electrode layer 140 arranged in a mesh shape, and in the direction perpendicular to the first substrate 100, the common electrode layer 140 overlaps the data lines DL and partially overlaps the scan lines. SL, therefore, the display medium layer LC where the light shielding pattern layer 220 overlaps the data line DL and the scan line SL can be rotated by the electric field between the first common electrode layer 140 and the second common electrode layer 240. Thereby, with an appropriate polarizer configuration, the display medium layer LC can form an opaque area within the orthographic projection of the shading pattern layer 220 on the first substrate 100 to absorb or block oblique penetration from the first substrate 100 The light of the medium layer LC is displayed. In this way, the probability of lateral light leakage and light mixing due to the thickness of the flat layer 120 or the displacement of the light-shielding pattern layer 220 can be reduced, so that the required width of the light-shielding pattern layer 220 can be further reduced, thereby increasing the pixel aperture ratio of the display device 10 And display quality.

In addition, the first common electrode layer 140 of this embodiment can reduce the risk of the first data line DL1 affecting the liquid crystal molecules in the display medium layer LC, and further enhance the control of the liquid crystal molecules of the display device 10, and has good performance.

In addition, the display device 10 of this embodiment can also electrically connect the common electrode line 160 to the first common electrode layer 140 through the through hole 170. In this way, the common electrode line 160 can transmit signals through the first common electrode layer 140. Thereby, the risk of signal abnormality or failure due to disconnection of the common electrode line 160 can be reduced, so as to reduce the display area occupied by the through hole 170, increase the display area of the display device 10 and improve the performance. Therefore, it is obvious The display device 10 can not only pass through the first common electrode layer 140 to reduce the probability of lateral light leakage and light mixing, but also improve the pixel aperture ratio, performance, and display quality.

The following embodiments follow the component numbers and part of the content of the previous embodiments, where the same numbers are used to represent the same or similar components. For the omission of the same technical content, please refer to the aforementioned embodiments. The following embodiments will not Repeat it.

4 is a schematic partial top view of a display device according to another embodiment of the invention. The display device 10A shown in this embodiment is similar to the display device 10 shown in FIG. 1. The main difference is that the first active element T1' of the first pixel unit PX1' is electrically connected to the first scan line SL1, and the second The two-pixel unit PX2 is electrically connected to the second scan line SL2, and the first pixel unit PX1' and the second pixel unit PX2 are both electrically connected to the first data line DL1. In other words, the display device 10A of this embodiment includes, for example, a pixel array with a half source driving (HSD) architecture. In this way, the adjacent first pixel unit PX1' and the second pixel unit PX2 can share the first data line DL1, thereby reducing the total number of data lines DL by half. In this way, in addition to reducing the space required for routing data lines DL, and making the design of peripheral circuits of the display device 10B more marginal, it is also possible to reduce the number of driving elements (such as driving chips) provided around the display device 10B to Reduce costs and shrink borders.

In this embodiment, the first active device T1' includes a first gate G1', a first semiconductor channel layer CH1', and a first source S1' and a first source S1' electrically connected to the first semiconductor channel layer CH1', respectively. Dip pole D1'. The structure and material of the first active device T1' are similar to those of the first active device T1 in FIG. 1, so it will not be repeated here. In this implementation In an example, the first active device T1' is electrically connected to the first data line DL1 through the first source S1', but the invention is not limited to this. In this way, the display device 10A can achieve similar technical effects as the above-mentioned embodiments.

FIG. 5 is a schematic partial top view of a display device according to another embodiment of the invention. The display device 10B shown in this embodiment is similar to the display device 10 shown in FIG. 1, and the main difference lies in: FIG. 5 shows an array in which a plurality of pixel units PX are arranged in a 3×4 manner. Specifically, FIG. 5 shows that 4 scan lines SL _n , SL _n+1 , SL _n+2 , and SL _{n+3 are} arranged along the first direction Y and 4 data lines DL _n , DL _n+1 , DL _n+2 and DL _{n+3 are} arranged along the second direction X and staggered with each other. The 3 pixel units PX are arranged along the second direction X and the 4 pixel units PX are arranged along the first direction Y, and each pixel unit PX is respectively located between two scan lines and two data lines (for example, located Between the scan lines SL _n and SL _n+1 and the data lines DL _n and DL _n+ , but not limited to this). Each pixel unit PX includes an active element T and a pixel electrode PE. The active element T and the pixel electrode PE are similar in structure and materials to the first active element T1, the second active element T2, the first pixel electrode PE1 and the second pixel electrode PE2 in FIG. 1, so they will not be repeated here. In this embodiment, a plurality of pixel units PX located in the same row are electrically connected to the same scan line (for example, scan line SL _n ), and respectively connected to corresponding data lines (for example, data lines DL _n , DL _n+1 , DL _n+2 ), but not limited to this. In addition, as shown in FIG. 5, the pixel unit PX in each column may overlap the common electrode lines 160 _n , 160 _n+1 , 160 _n+2 , and 160 _n+3 . For example, the backbone 162 of the common electrode line 160 _n may be located between two adjacent scan lines (for example, scan lines SL _n and SL _n+1 ), but it is not limited thereto. It should be noted here that FIG. 5 only shows a part of the display device 10B, so the scan lines SL _n , SL _n+1 , SL _n+2 , SL _n+3 , and data lines DL _n , DL _{n+ of the} present invention _{1. The number} of DL _n+2 , DL _n+3 , common electrode lines 160 _n , 160 _n+1 , 160 _n+2 , 160 _n+3 and the number of pixel electrodes PE is not limited to that shown in FIG. 5.

In this embodiment, the first common electrode layer 140 ′ further has a fourth portion 144 extending along the second direction X. The fourth portion 144 is connected to the first portion 141 and overlaps portions of the trunk 162 of the common electrode lines 160 _n , 160 _n+1 , 160 _n+2 , and 160 _n+3 . In this embodiment, the through hole 170A may be provided where the fourth portion 144 overlaps the main stem 162 to expose the main stem 162 so that the main stem 162 can be electrically connected to the fourth portion 164 through the through hole 170A, but the present invention does not This is limited. As shown in FIG. 5, the pixel electrode PE does not overlap the fourth portion 144 but partially overlaps the trunk 162. In this way, the display device 10B can achieve similar technical effects as the above-mentioned embodiments.

In addition, a plurality of drive circuits 301 and 302 are provided on the display device 10B. The driving circuits 301 and 302 are, for example, chips to provide driving signals or reference signals to the common electrode lines 160 _n , 160 _n+1 , 160 _n+2 , and 160 _n+3 , where n is a positive integer. As shown in FIG. 5, the left and right sides of the two drive circuits 301, 302 may be connected to the corresponding common electrode line are electrically 160 _{n, 160 n + 1, 160 n} + 2, 160 n + 3. For example, the driving circuit 301 on the left side can be electrically connected to the common electrode lines 160 _n and 160 _n+2 , and the driving circuit 302 on the right side can be electrically connected to the common electrode lines 160 _n+1 and 160 _n+3. . In other words, the common electrode lines 160 _n , 160 _n+1 , 160 _n+2 , and 160 _n+3 do not need to be connected to the same driving circuit (for example, the driving circuit 301 or the driving circuit 302), so the driving circuit 301 can be improved , 302 and the margin of the surrounding wiring settings. In some embodiments, the driving circuits 301 and 302 may be electrically connected to several of the common electrode lines 160 _n , 160 _n+1 , 160 _n+2 , and 160 _n+3 , respectively, but the present invention is not based on this. limit. In other words, not every common electrode line 160 _n , 160 _n+1 , 160 _n+2 , and 160 _{n+3 needs to} be connected to the driving circuit 301 or the driving circuit 302 to provide a signal. For example, only one, two or three of the four common electrode lines 160 _n , 160 _n+1 , 160 _n+2 , and 160 _{n+3 in} FIG. 5 may be connected to the corresponding driving circuit 301 or the driving circuit 302. In other embodiments, only one common electrode line 160 _{n may be} connected to the driving circuit 301 on the left and only the other common electrode line 160 _{n+3 is} connected to the driving circuit 302 on the right. In still other embodiments, it is also possible to provide the driving circuit 301 (or the driving circuit 302) only on one side of the display device 10B and only part or all of the common electrode lines 160 _n , 160 _n+1 , and 160 _n+2 and 160 _{n+3 are} electrically connected to the aforementioned driving circuit 301 (or driving circuit 302).

Under the above configuration, since the common electrode lines 160 _n , 160 _n+1 , 160 _n+2 , and 160 _n+3 can be electrically connected to the first common electrode layer 140 ′ to pass through the first common electrode layer 140 ′ Therefore, only part of the common electrode lines 160 _n , 160 _n+1 , 160 _n+2 , and 160 _{n+3 need to be} electrically connected to the driving circuit 301 or the driving circuit 302 to transmit the above signals to the common electrode line 160 Any of _n , 160 _n+1 , 160 _n+2 , or 160 _n+3 . In this way, the wiring design of the display device 10B around the periphery can be more marginal, and the frame can be further reduced, and the display quality can be improved.

FIG. 6 is an equivalent circuit diagram of a display device according to still another embodiment of the invention. 1 and FIG. 6, the display device 10C shown in this embodiment is similar to the display device 10 shown in FIG. 1, the main difference is: the first pixel unit PX1" includes a first sub-pixel area PX1A and a Two sub-pixel area PX1B. In detail, the display device The setting 10C includes a first scan line SL1 and a second scan line SL2, a first data line DL1 intersecting the first scan line SL1 and the second scan line SL2, and a common electrode line 160.

The first sub-pixel area PX1A in the first pixel unit PX1" includes a first sub-pixel electrode PE1A and a first active element T1A. The first sub-pixel electrode PE1A is electrically connected to the first sub-pixel electrode PE1A through the first active element T1A. a data line DL1 and the second scan line SL2. T1A of the first active element may also be electrically connected to the storage capacitor C _1, but the present invention is not limited thereto. in the present embodiment, a first active device having electrically T1A connected to the control terminal of the second scan line SL2. Thus, the first sub-pixel electrode and the storage capacitor C PE1A charging and discharging _a first active element controlled by T1A second scan line SL2 through.

The second sub-pixel area PX1B in the first pixel unit PX1" includes a second sub-pixel electrode PE1B, a second active element T1B, and a third active element T1C. The second sub-pixel electrode PE1B passes through the second active element. T1B is electrically connected to the first data line DL1 and the second scan line SL2. In this embodiment, the third active device T1C can also be connected in series to the second active device T1B and electrically connected to the first scan line SL1. The active element T1C is electrically connected to the capacitor C _CS . Under the above configuration, the second sub-pixel electrode PE1B can be electrically connected to the capacitor C _CS through the third active element T1C. As shown in FIG. 6, the second active element T1B may also be electrically connected to the storage capacitor C _2, but the present invention is not limited thereto. in the present embodiment, a second active device having a control terminal T1B is electrically connected to the second scan line SL2. Accordingly, the second PE1B sub-pixel electrodes and storage capacitor C charging and discharging a second active element ₂ is controlled by T1B second scan line SL2 via Furthermore, T1C third active element having a control terminal electrically connected to the first scan line SL1. Thus , The charging and discharging of the capacitor C _CS is controlled by the first scan line SL1 through the third active element T1C. In this way, the second sub-pixel electrode PE1B and the capacitor C _CS can have an associated charge Q to achieve charge sharing. ) Needs.

In summary, the display device of an embodiment of the present invention has a first common electrode layer arranged in a mesh shape, and in a direction perpendicular to the first substrate, the common electrode layer overlaps these data lines and partially overlaps these scan lines. The display medium layer where the light-shielding pattern layer overlaps the data line and the scan line can be rotated by the electric field between the first common electrode layer and the second common electrode layer. Thereby, the display medium layer can form an opaque area within the orthographic projection of the light-shielding pattern layer 220 on the first substrate to absorb or block light that obliquely penetrates the display medium layer from the first substrate. In this way, the probability of lateral light leakage and light mixing due to the thickness of the flat layer or the displacement of the light-shielding pattern layer can be reduced, and thus the required width of the light-shielding pattern layer can be further reduced, thereby improving the pixel aperture ratio and display quality of the display device.

In addition, the first common electrode layer can reduce the risk of the first data line affecting the liquid crystal molecules in the display medium layer, and further improve the control of the liquid crystal molecules by the display device, and has good performance.

In addition, the display device of the present invention can also electrically connect the common electrode line to the first common electrode layer through the through hole. In this way, the common electrode line can transmit signals through the first common electrode layer. Thereby, the risk of signal abnormality or failure due to disconnection of the common electrode line can be reduced, and the through hole can be directly formed on the scan line or the corresponding pixel unit. In this way, in addition to increasing the display area and performance of the display device, it can also The spacers are arranged corresponding to the through holes to further increase the pixel aperture ratio of the pixel unit of the corresponding color and improve the display quality of the display device. Therefore, the display device can not only reduce the probability of lateral light leakage and light mixing through the first common electrode layer, but also improve the pixel aperture ratio, performance and display quality.

In addition, since the common electrode line can be electrically connected to the first common electrode layer to transmit signals through the first common electrode layer, only part of the common electrode line is electrically connected to the driving circuit to transmit the above signal to the common electrode. Anywhere on the line. In this way, the wiring design of the display device around the periphery can be more marginal, and the frame of the display device can be further reduced, and the display quality can be improved.

In addition, the display device of the present invention also includes a pixel array with a half-source drive structure, so that the total number of data lines can be halved. In this way, in addition to reducing the space required for data lines and other wiring, and making the design of the peripheral circuits of the display device more marginal, it can also reduce the number of driving components (such as driving chips) provided around the display device to reduce costs and Reduce the border.

In addition, the display panel of the present invention further connects the capacitor to the second sub-pixel electrode in series through the third active element. In this way, the charge associated with the second sub-pixel electrode and the capacitor can be redistributed to meet the charge sharing requirement.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the relevant technical field can make slight changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention shall be determined by the scope of the attached patent application.

10: Display device 100: The first substrate 140: The first common electrode layer 141: Part One 142: Part Two 143: Part Three 151: The first corner 152: The second corner 160: Common electrode line 162: Trunk 164: Branch 1641: The first branch 170, 172: Through hole 180: Spacer A-A’, B-B’: Section line CH1: The first semiconductor channel layer CH2: The second semiconductor channel layer D1: The first drain D2: The second drain DL: Data line DL1: The first data line DL2: The second data line DL3: The third data line G1: The first gate G2: The second gate PE1: The first pixel electrode PE2: second pixel electrode PX: pixel unit PX1: The first pixel unit PX2: The second pixel unit S1: First source S2: second source SL: scan line SL1: the first scan line SL2: second scan line T1: The first active component T2: The second active component W1: the first width W2: second width X: second direction Y: first direction

Claims (18)

A display device includes: a first substrate; a plurality of data lines and a plurality of scan lines are arranged on the first substrate, the data lines extend along a first direction, and the scan lines extend along a second direction Extend, and the first direction is perpendicular to the second direction; a plurality of pixel units are disposed on the first substrate, and the pixel units are electrically connected to the scan lines and the data lines; a flat layer covers the Data lines; a first common electrode layer is disposed on the flat layer, has a plurality of first portions extending along the first direction, and in a direction perpendicular to the first substrate, the first portions overlap the The data lines; a second substrate disposed opposite to the first substrate; and a second common electrode layer disposed on the second substrate and located between the second substrate and the first common electrode layer, wherein Each of the first portions of the first common electrode layer has a first width W1, and each of the data lines has a second width W2, and W1≧W2. According to the display device described in claim 1, wherein the first common electrode layer further includes a plurality of second portions extending along the second direction, and part of the second portions connects two adjacent The first portions are in a direction perpendicular to the first substrate, and the portions of the second portions overlap the scan lines. For the display device described in claim 2, wherein the scan lines include a first scan line and a second scan line, the data lines include a first data line, and the first data line intersects the The first scan line and the second scan line, wherein the pixel units include a first pixel unit located between the first scan line and the second scan line, and the first pixel unit is electrically connected to the The second scan line. The display device described in item 3 of the scope of patent application further includes a common electrode line, which is electrically connected to the first common electrode layer through a through hole. The display device according to claim 4, wherein the common electrode line has a trunk extending along the second direction and a fourth portion connected to the first portion, wherein the trunk partially overlaps the first portion The pixel electrode, the first data line, and the fourth portion overlapping the first common electrode layer, and where the backbone overlaps the fourth portion, the backbone is electrically connected to the fourth portion through the through hole. According to the display device described in claim 4, the first common electrode layer further includes a third portion extending along the second direction, and the common electrode line further includes a third portion extending along the second direction. The trunk and a first branch extending along the first direction, and the first branch is connected to the trunk, the first pixel unit has a first corner adjacent to the second scan line and the first data line, wherein the The third part is parallel to the second part, and the third part overlaps the first branch at the first corner, wherein where the first branch overlaps the third part, the first branch passes through the through hole and the The third electrical connection. As described in item 6 of the scope of patent application, the display device further includes a spacer disposed on the second scan line corresponding to the first corner of the first pixel unit. According to the display device described in item 7 of the scope of patent application, the color of the first pixel unit corresponding to the spacer is blue. The display device according to claim 3, wherein the first pixel unit includes a first sub-pixel area and a second sub-pixel area, and the first sub-pixel area includes a first sub-pixel area. The first sub-pixel electrode is electrically connected to the first data line through a first active element, the second sub-pixel area includes a second sub-pixel electrode, and the second sub-pixel electrode passes through A second active element is electrically connected to the first data line, and the second sub-pixel electrode is also connected to a capacitor through a third active element. As for the display device described in claim 3, wherein the pixel units include a first pixel unit and a second pixel unit, and the first pixel unit and the second pixel unit are located in the same Columns and adjacent, the first pixel unit is electrically connected to the first scan line, the second pixel unit is electrically connected to the second scan line, and the first pixel unit and the second pixel unit are electrically connected Sexually connect the first data line. A display device includes: a first substrate; a plurality of data lines and a plurality of scan lines are arranged on the first substrate, the data lines extend along a first direction, and the scan lines extend along a second direction Extend, and the first direction is perpendicular to the second direction; a first pixel unit and a second pixel unit are disposed on the first substrate, the The first pixel unit and the second pixel unit are electrically connected to the scan lines and the data lines, respectively; a flat layer covers the data lines; a first common electrode layer is disposed on the flat layer and has A plurality of first portions extending along the first direction, and in a direction perpendicular to the first substrate, the first portions overlapping the data lines; a spacer is provided on the flat layer and perpendicular to the In the direction of the first substrate, the spacer overlaps one of the scanning lines; a common electrode line, which is electrically connected to the first common electrode layer through a through hole; and a second substrate is disposed on the first common electrode layer. And a second common electrode layer disposed on the second substrate and located between the second substrate and the first common electrode layer, wherein the scan lines include a first scan line and a The second scan line, the data lines include a first data line, and the first data line intersects the first scan line and the second scan line, the first pixel unit and the second pixel unit are located in the Between the first scan line and the second scan line, the first pixel unit has a first corner adjacent to the second scan line and the first data line, and the spacer is adjacent to the first pixel unit In the first corner, in the first direction, the distance between the spacer and the through hole is 2 μm to 10 μm. The display device according to claim 11, wherein the first pixel unit is electrically connected to the first scan line, the second pixel unit is connected to the second scan line, and the first pixel unit is connected to the The second pixel unit is electrically connected to the first data line and located in the same row and adjacent to each other. The display device according to claim 12, wherein the second pixel unit has a second corner adjacent to the second scan line and the first data line, and the first corner and the second corner are respectively located On both sides of the first data line, and a second active element of the second pixel unit is adjacent to the second corner. The display device according to claim 11, wherein the first pixel unit includes a first sub-pixel area and a second sub-pixel area, and the first sub-pixel area includes a first sub-pixel area. The first sub-pixel electrode is electrically connected to the first data line through a first active element, the second sub-pixel area includes a second sub-pixel electrode, and the second sub-pixel electrode passes through A second active element is electrically connected to the first data line, and the second sub-pixel electrode is also connected to a capacitor through a third active element. The display device according to claim 11, wherein the through hole and the spacer are adjacent to the first corner of the first pixel. The display device according to claim 15, wherein the first pixel unit corresponds to a first color, the second pixel unit corresponds to a second color, the first color is different from the second color, and The through hole and the spacer are arranged corresponding to the first color. The display device described in claim 11 further includes a driving circuit, wherein there are multiple common electrode lines, and the driving circuit is electrically connected to the portions of the common electrode lines. The display device according to claim 11, wherein the first common electrode layer and the second common electrode layer are electrically connected to a common voltage potential.

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