CN106324915B - display panel - Google Patents

Abstract

The present invention discloses a display panel, which comprises: a first substrate, comprising two scanning lines; a second substrate; a shielding layer, comprising two columns of shielding patterns for shielding the two scanning lines; a first color filter unit, arranged on the second substrate; and a spacer, arranged on the first color filter unit, wherein the spacer is located on one of the two columns of shielding patterns, wherein the first color filter unit has a first side edge, the first side edge comprises a first portion located between the two columns of shielding patterns, and a second portion located on one of the two columns of shielding patterns, and the first portion is connected to the second portion, wherein the shortest distance between an extension line of the first portion and a center of the spacer is a first distance, and the shortest distance between the second portion and the center of the spacer is a second distance, and the first distance is smaller than the second distance.

Description

display panel

technical field

The present invention relates to a display panel, and more particularly, to a display panel having a color filter unit.

Background technique

Liquid crystal display devices have been widely used in display elements of various products in recent years. The liquid crystal display device utilizes the characteristics that liquid crystal molecules have different polarization or refraction effects on light in different arrangement states to control the amount of light penetration, thereby enabling the liquid crystal display device to generate images.

Recently, various forms of wide viewing angle liquid crystal display devices have been developed, such as In-Plane Switching (IPS) liquid crystal display devices and Fringe-Field Switching (FFS) liquid crystal display devices, etc. A liquid crystal display device with viewing angle and high aperture ratio. However, when the display device is to be developed to be lighter, thinner and shorter, it may still encounter the problem of decreased manufacturing process yield.

SUMMARY OF THE INVENTION

In order to solve the above problems, the present invention provides a display panel, comprising: a first substrate including two scan lines; a second substrate disposed opposite to the first substrate; a shielding layer disposed on the second substrate, and the shielding layer includes shielding two Two rows of shielding patterns for scanning lines; a first color filter unit, disposed on the second substrate; and a spacer, disposed on the first color filter unit, wherein the spacer is located on one of the two rows of shielding patterns, The first color filter unit has a first side, the first side includes a first portion located between the two rows of shielding patterns, and a second portion located on one of the two columns of shielding patterns, and the first portion is connected to the first portion. Two parts, wherein the shortest distance between the extension line of the first part and the center of the spacer is the first distance, and the shortest distance between the second part and the center of the spacer is the second distance, and the first distance is smaller than the second distance.

The present invention also provides a display panel, comprising: a first substrate, including data lines and two scan lines; a second substrate, disposed opposite to the first substrate; a shielding layer, disposed on the second substrate, and the shielding layer includes shielding two scan lines Two rows of shielding patterns of lines; a first color filter unit, disposed on the second substrate; and a spacer, disposed on the first color filter unit, wherein the spacer is located on one of the two rows of shielding patterns, wherein The first color filter unit has a first side, the first side includes a first part located between the two columns of shielding patterns, and a second part located on one of the two columns of shielding patterns, and the first part is connected to the second parts, a first part of which is a straight line segment extending along the data line, and a second part is a curved line segment that bends to conform to the bottom edge of the spacer.

In order to make the features and advantages of the present invention more obvious and easy to understand, the preferred embodiments are exemplified below, and are described in detail as follows in conjunction with the accompanying drawings.

Description of drawings

1A to 1C are cross-sectional views or top views of a display panel according to an embodiment of the invention;

Fig. 2 is a partial enlarged view of Fig. 1C;

Fig. 3 is the sectional view drawn by line segment 3-3 of Fig. 1C;

4A-4B are top views or cross-sectional views of a display panel according to another embodiment of the present invention;

5A-5B are top views or cross-sectional views of a display panel according to still another embodiment of the present invention;

6 is a top view or a cross-sectional view of a display panel according to still another embodiment of the present invention;

7 is a top view or a cross-sectional view of a display panel according to another embodiment of the present invention;

8 is a top view or a cross-sectional view of a display panel according to another embodiment of the present invention.

Symbol Description

100 display panels;

102 the first substrate;

104 the second substrate;

106 liquid crystal layer;

108 shielding layer;

108C1 line masking pattern;

108C2 line masking pattern;

108C3 line masking pattern;

108C4 line masking pattern;

108R column mask pattern;

108R1 column masking pattern;

108R2 column masking pattern;

110 a first color filter unit;

110E1 Part I;

110E2 Part II;

110S1 side;

110S2 side;

112 The second color filter unit;

112S1 side;

112S2 side;

114 The third color filter unit;

114S1 side;

114S2 side;

114E1 Part III;

114E2 Part IV;

116 flat layer;

118 main spacer;

118T top surface;

118B Bottom;

118C Center;

118BE edge;

120 spacers;

120T top surface;

120B bottom surface;

120C Center;

120BE edge;

122 the first alignment layer;

124 the second alignment layer;

126 data lines;

126A data cable;

126B data line;

126C data line;

126D data cable;

128 scan lines;

128A scan line;

128B scan lines;

130 pixel area;

132 extension cord;

134 undercut part;

136 undercut part;

138 extension cord;

140 points;

400 display panel;

500 display panel;

600 display panel;

700 display panel;

800 display panel;

D1 distance;

D2 distance;

D3 distance;

D4 distance;

D5 distance;

R1 radius;

R2 radius;

W1 width;

W2 width;

H1 height;

H2 height;

AA line segment;

33 line segments.

Detailed ways

The following is a detailed description of the display panel of the present invention. It should be appreciated that the following description provides many different embodiments or examples for implementing different aspects of the invention. The specific elements and arrangements described below are merely illustrative of the invention. Of course, these are only used as examples rather than limitations of the present invention. Furthermore, repeated reference numbers or designations may be used in different embodiments. These repetitions are for simplicity and clarity of description of the present invention and do not represent any association between the different embodiments and/or structures discussed. Furthermore, when it is mentioned that a first material layer is located on or above a second material layer, it includes the situation that the first material layer and the second material layer are in direct contact. Alternatively, one or more layers of other materials may be spaced apart, in which case there may not be direct contact between the first and second layers of material.

It must be understood that the elements specifically described or illustrated may exist in various forms well known to those skilled in the art. In addition, when a layer is "on" other layers or substrates, it may mean "directly" on other layers or substrates, or a layer is on other layers or substrates, or sandwiched between other layers or substrates other layers.

In addition, relative terms, such as "lower" or "bottom" and "higher" or "top," may be used in the examples to describe the relative relationship of one element to another of the illustrated elements. It will be appreciated that if the illustrated device were turned upside down, elements described on the "lower" side would become elements on the "upper" side.

As used herein, the terms "about" and "approximately" generally mean within 20%, preferably within 10%, and more preferably within 5% of a given value or range. The quantity given here is an approximate quantity, which means that the meanings of "about" and "approximately" can still be implied without a specific description.

The distance mentioned in the embodiment of the present invention is the distance measured after projecting all the items observed in the above view on a plane, and this distance can be measured by taking photos taken by an optical microscope with a magnification of 50X and 100X. .

The extension line mentioned in the embodiment of the present invention is actually a virtual line segment extending along the side of the color filter unit on the aforementioned plane, and the starting point of the virtual line segment is roughly between the straight line segment and the curved line segment , and the extension direction of the virtual line segment is roughly parallel to the extension direction of the straight line segment.

In the embodiment of the present invention, the side of the color filter unit is deviated from the center of the spacer thereon, so as to reduce the probability of the spacer being skewed, thereby improving the manufacturing process yield of the display device.

First, refer to FIG. 1A , which is a cross-sectional view of a display device 100 according to an embodiment of the present invention. As shown in FIG. 1A , the display device 100 includes a first substrate 102 , a second substrate 104 disposed opposite to the first substrate 102 , and a liquid crystal layer 106 disposed between the first substrate 102 and the second substrate 104 . The display device 100 further includes a shielding layer 108 disposed on the second substrate 104 , and a first color filter unit 110 , a second color filter unit 112 and a third color filter unit 114 disposed on the shielding layer 108 . The display device 100 further includes a flat layer 116 disposed on the first color filter unit 110 , the second color filter unit 112 and the third color filter unit 114 , and a main spacer 118 disposed on the flat layer 116 with secondary spacer 120. The display device 100 further includes a first alignment layer 122 covering the main spacers 118 , the sub spacers 120 and the planarization layer 116 , and a second alignment layer 124 disposed on the first substrate 102 .

The above-mentioned display device 100 may be a liquid crystal display, such as a thin film transistor liquid crystal display. Alternatively, the liquid crystal display can be a twisted nematic (TN) type liquid crystal display, a super twisted nematic (STN) type liquid crystal display, a double layer super twisted nematic (DSTN) type Liquid crystal display, Vertical Alignment (VA) liquid crystal display, Multi-domain Vertical Alignment (MVA) liquid crystal display, In-Plane Switching (IPS) liquid crystal display, Fringe field switching ( Fringe Field Switching, FFS) type liquid crystal display, cholesteric (Cholesteric) type liquid crystal display, blue phase (Blue Phase) type liquid crystal display or any other suitable liquid crystal display.

The first substrate 102 may be a transistor substrate. The first substrate 102 serving as the transistor substrate can be a transparent substrate, and its material can be, for example, a glass substrate, a ceramic substrate, a plastic substrate or any other suitable transparent substrate. In addition, transistors (not shown) for controlling pixels, such as thin film transistors, are disposed in or on the first substrate 102 .

1B , which is a top view of the display panel 100 of the embodiment of FIG. 1A , and FIG. 1A is a cross-sectional view drawn along line A-A of this FIG. 1B . As shown in FIG. 1B , the first substrate 102 includes two data lines (eg, 126B and 126C) and two scan lines (128A and 128B). The pair of data lines (eg, 126B and 126C) and the pair of scan lines (128A and 128B) together define a pixel region 130 .

Referring back to FIG. 1A , the second substrate 104 can be a color filter layer substrate, and its material can be, for example, a glass substrate, a ceramic substrate, a plastic substrate or any other suitable transparent substrate.

It should be noted that, in order to clearly illustrate the display panel 100 of the present invention, FIG. 1B only shows the data lines 126 and scan lines 128 of the first substrate 102 and the shielding layer 108 on the second substrate 104 , but not shown. Other elements of the display panel 100 are displayed.

The liquid crystal layer 106 may include nematic, smectic, cholesteric, blue phase, or any other suitable liquid crystal material.

The above-mentioned shielding layer 108 is used for shielding areas or elements in the display panel 100 that are not used for displaying colors, for example, for shielding scan lines and data lines. The material of the shielding layer 108 can be black photoresist, black printing ink, black resin or any other suitable light shielding material and color.

In detail, referring to FIG. 1B , the shielding layer 108 of the display panel 100 includes two column shielding patterns ( 108R1 and 108R2 ) shielding the pair of scan lines ( 128A and 128B ), and shielding the pair of data lines (eg, 126B and 126C ) ) of the two row mask patterns (108C2 and 108C3). In detail, the four row shielding patterns 108C1 , 108C2 , 108C3 and 108C4 shown in FIG. 1B shield the four data lines 126 (ie, the data lines 126A, 126B, 126C and 126D), respectively. The row shielding patterns 108R1 and 108R2 shield the scan line 128 . Specifically, the column shielding pattern 108R1 shields the scan line 128A, and the column shielding pattern 108R2 shields the scan line 128B.

Referring back to FIG. 1A , the first color filter unit 110 , the second color filter unit 112 and the third color filter unit 114 may each independently include a red filter unit, a green filter unit, a blue filter unit, or any other suitable color filter unit. For example, in one embodiment, the first color filter unit 110 is a red filter unit, the second color filter unit 112 is a blue filter unit, and the third color filter unit 114 is a green filter unit.

Referring to FIG. 1C , which is also a top view of the display panel 100 of the embodiment of FIG. 1A , and FIG. 1A is a cross-sectional view drawn along line A-A of this FIG. 1C . In order to clearly illustrate the present invention, the scan lines and the data lines are not shown in FIG. 1C . As shown in FIG. 1C , the second color filter unit 112 and the third color filter unit 114 are respectively disposed on opposite sides of the first color filter unit 110 . In addition, since the shielding layer 108 is disposed under the first color filter unit 110 , the second color filter unit 112 and the third color filter unit 114 , the shielding layer 108 is represented by a dotted line here.

In addition, as shown in FIG. 1C, the first color filter unit 110 has opposite sides 110S1 and 110S2, the second color filter unit 112 has opposite sides 112S1 and 112S2, and the third color filter unit 114 has opposite sides the sides 114S1 and 114S2. In addition, the side 112S2 of the second color filter unit 112 and the side 110S1 of the first color filter unit 110 are adjacent to each other, and the side 110S2 of the first color filter unit 110 and the third color filter unit 114 are adjacent to each other. The sides 114S1 are adjacent to each other.

It should be noted that FIG. 1B and FIG. 1C illustrate the same display panel of the same embodiment. In order to clearly illustrate the present invention, the scan lines and the data lines are not shown in FIG. 1C .

Referring back to FIG. 1A , in one embodiment, the planarization layer 116 may be conformably disposed on the first color filter unit 110 . The planarization layer 116 may include plastic, photoresist. For example, the planarization layer 116 may include acrylic material (Acrylate), epoxy acrylic material (Epoxy acrylate), siloxane material (Siloxane), any other suitable material, or a combination thereof.

As shown in FIG. 1A , spacers (eg, the primary spacer 118 or the secondary spacer 120 ) are disposed on the planarization layer 116 . The main spacers 118 disposed on the flat layer 116 (or on the second substrate 104 ) are used to separate the second substrate 104 and the first substrate 102 so that the liquid crystal layer 106 can fill the second substrate 104 and the first substrate 102 and the sub-spacer 120 is mainly used as a buffer for the pressure of the second substrate 104 and the first substrate 102 .

In addition, since the main spacer 118 is the main structure for separating the second substrate 104 and the first substrate 102, the sub-spacer 120 is mainly used to prevent the second substrate 104 from contacting the first substrate 102 when the display device 100 is pressed Therefore, the height of the main spacer 118 is higher than the height of the sub-spacer 120 , and the width of the main spacer 118 is also wider than the width of the sub-spacer 120 . In detail, the main spacer 118 has a first height H1, and the sub-spacer has a second height H2, and the first height H1 is greater than the second height H2. In addition, the primary spacer 118 has a first width W1, and the secondary spacer has a second width W2, and the first width W1 is greater than the second width W2.

In addition, the main spacer 118 has a top surface 118T away from the second substrate 104 and a bottom surface 118B adjacent to the second substrate 104 , and the sub-spacer 120 also has a top surface 120T away from the second substrate 104 and adjacent to the second substrate 104 . Bottom surface 120B. The above-mentioned materials of the main spacers 118 and the sub-spacers 120 may include photoresists, such as positive photoresists or negative photoresists. The main spacer 118 and the sub-spacer 120 can be defined by the same photolithography process. However, the main spacer 118 and the sub-spacer 120 may also be defined by different photolithography processes. The above-mentioned lithography fabrication process includes photoresist patterning, and the photoresist patterning also includes photoresist coating, soft bake, photomask alignment, exposure pattern, post-exposure bake (post-bake). The manufacturing process steps such as exposure baking), photoresist development and hard baking.

Referring to FIG. 1A , the first alignment layer 122 and the second alignment layer 124 are thin layers for inducing alignment of liquid crystal molecules, and their materials may independently include polyimide or any other suitable alignment layer material. The first alignment layer 122 covers the second substrate 104 , the planarization layer 116 , the main spacer 118 and the sub-spacer 120 . And the first alignment layer 122 disposed on the top surface 118T of the main spacer 118 can directly contact the second alignment layer 124 .

Referring to FIGS. 1A and 1C , the main spacer 118 is disposed between the first color filter unit 110 and the second color filter unit 112 , and the main spacer 118 is disposed on one of the two row shielding patterns 108R. It should be noted that FIG. 1C illustrates the outline of the bottom surface 118B of the primary spacer 118 and the outline of the bottom surface 120B of the secondary spacer 120 of FIG. 1A . In this embodiment, most of the bottom surfaces 118B of the main spacers 118 are disposed on the first color filter units 110 , and a small portion of the bottom surfaces 118B of the main spacers 118 are disposed on the second color filter units 112 .

In the embodiment shown in FIG. 1C , the main spacers 118 are disposed on the row of shielding patterns 108R1 , the row of shielding patterns 108R1 has a flared portion corresponding to the spacers 118 , and the row of shielding patterns 108R1 completely covers the main spacers 118 . In detail, the edge of the row shielding pattern 108R1 corresponding to the spacer 118 is arc-shaped, and the arc-shaped edge defines a flared portion of the row shielding pattern 108R1, and the bottom surface 118B of the spacer 118 is completely disposed there. in the area corresponding to the expanded portion of the column masking pattern 108R1.

Therefore, the row shielding patterns 108R2 on which the main spacers 118 and the sub-spacers 120 are not disposed have only straight portions, while the row shielding patterns 108R1 on which the main spacers 118 and/or the sub-spacers 120 are disposed have straight portions. and the expansion part.

Continuing to refer to FIG. 1C , the first color filter unit 110 has a first side 110S1 , the first side 110S1 has a first portion 110E1 between the two column shielding patterns, and a second portion overlapping the column shielding pattern 108R1 110E2 (that is, the second portion 110E2 is located on one of the two row shielding patterns 108R1 and 108R2), and the first portion 110E1 is connected to the second portion 110E2.

In other words, the first portion 110E1 and the second portion 110E2 are different portions of the same side. That is, the first portion 110E1 and the second portion 110E2 are different portions of the first side 110S1 of the first color filter unit 110 . The portion of the first side 110S1 overlapping with the column masking pattern 108R1 on which the main spacer 118 and/or the sub-spacer 120 is disposed is the second portion 110E2 , and the remaining portion is the first portion 110E1 . In addition, the first portion 110E1 may overlap with one of the row shielding patterns ( 108C2 and 108C3 ). For example, in this embodiment, the first portion 110E1 overlaps with the row shielding pattern 108C2 .

See Figure 2, which is an enlarged view of a portion of Figure 1C. As shown in FIG. 2 , the shortest distance between the extension line 132 of the first portion 110E1 of the first color filter unit 110 and the center 118C of the main spacer 118 is the distance D1 , and the second portion 110E2 and the center of the main spacer 118 are the shortest distances D1 The shortest distance of 118C is the distance D2, and the distance D1 is smaller than the distance D2, wherein the extending direction of the extension line 132 is the main extending direction of the first portion.

By making the distance D1 smaller than the distance D2, the manufacturing process yield of the display panel can be improved. In detail, when the display device develops towards light, thin and short, the thickness of the flat layer provided on the color filter unit with compliance or blanket property will be reduced, resulting in the flat layer at the edge of the color filter unit. A concave is generated, such as the concave generated by the flat layer 116 at the side edges 110S1 and 110S2 of the first color filter unit 110 in FIG. 1A . If the recess is located below the center of the main spacer, the flatness of the top surface of the main spacer will be affected, and some top surfaces of the main spacers will be skewed, resulting in the gap between the first substrate and the second substrate. It is impossible to keep the whole same, and even bubbles may be generated between the first substrate and the second substrate, which reduces the production process yield of the display panel.

Therefore, in the embodiment of the present invention, the side edges of the color filter unit are deviated from the center of the spacer thereon, so that the depression of the flat layer can also be deviated from the center of the spacer thereon, reducing the skewed top surface of the main spacer. chance. Therefore, the overall distance between the first substrate and the second substrate can be kept the same, thereby improving the manufacturing process yield of the display panel.

In one embodiment, as shown in FIG. 2 , the distance D2 may be about 1.5 times to about 3.5 times the distance D1 (D2=1.5×D1˜3.5×D1), for example, about 2 times to about 3 times (D2= 2×D1～3×D1). Alternatively, the distance D2 may be about 0.5 times to about 1.5 times the radius R1 of the main spacer 118 (D2=0.5×R1˜1.5×R1 ), for example, about 0.7 times to about 1.2 times (D2=0.7×R1˜ 1.2×R1), or about 1 time (D2=R1).

When the distance D2 is about 1 times the radius R1 of the main spacer 118 (D2=R1), it means that the second portion 110E2 of the first color filter unit 110 overlaps the edge 118BE of the bottom surface 118B of the main spacer 118 .

Furthermore, in one embodiment, as shown in FIG. 2 , the first part 110E1 of the part is a straight line segment extending along one of the pair of data lines 126 (eg, the data line 126B shown in FIG. 1B ), and the second part 110E2 is a curved line segment that conforms to the curvature of the bottom edge 118BE of the primary spacer 118 .

In one embodiment, the curvature of the curved portion of the second portion 110E2 is approximately the same as the curvature of the bottom edge 118BE of the main spacer 118 . In other embodiments, the curvature of the curved portion of the second portion 110E2 may be about 1.2 times to about 0.8 times the curvature of the bottom edge 118BE of the main spacer 118 , such as about 1.1 times to about 0.9 times the curvature.

Referring to FIG. 1A and FIG. 1C , the sub-spacer 120 is disposed between the first color filter unit 110 and the third color filter unit 114 , and the spacer 120 is disposed in one of the two row shielding patterns ( 108R1 and 108R2 ) this time. on one of them (eg, on the column mask pattern 108R1). The third color filter unit 114 has a second side 114S1. The second side 114S1 includes a third portion 114E1 between the two rows of shielding patterns (108R1 and 108R2), and a third portion 114E1 between the two rows of shielding patterns (108R1 and 108R2). ) on one of the fourth portion 114E2, and the third portion 114E1 is connected to the fourth portion 114E2. The portion of the second side 114S1 between two adjacent row shielding patterns and the portion of the second side 114S1 overlapping with the column shielding pattern 108R2 on which the main spacer 118 and the sub-spacer 120 are not disposed are collectively referred to as The third part 114E1. The overlapping portion of the second side edge 114S1 and the column shielding pattern 108R on which the main spacer 118 and/or the sub-spacer 120 is disposed is the fourth portion 114E2 , and the third portion 114E1 is connected to the fourth portion 114E2 . In addition, the third portion 114E1 and the fourth portion 114E2 are both straight line segments.

Referring to FIG. 2 , in this embodiment, the extension line of the third portion 114E1 of the third color filter unit 114 coincides with the portion of the fourth portion 114E2 , therefore, the extension line of the third portion 114E1 and the center of the sub-spacer 120 The shortest distance between 120C is equal to the shortest distance between the fourth portion 114E2 and the center 120C of the secondary spacer 120 , and the distances are all distance D3 .

In addition, in this embodiment, as shown in FIG. 1A and FIG. 1C , the first color filter unit 110 and the second color filter unit 112 overlap, and the first color filter unit 110 and the third color filter unit 114 Not overlapping. In detail, from the top view, the second color filter unit 112 and the first color filter unit 110 in FIG. 1C have sides 112S2 and 110S1 adjacent to each other, while from the cross-sectional view, the second color filter unit 112 and the first color filter unit 110 in FIG. 1A have sides 112S2 and 110S1 adjacent to each other. The side 112S2 in the middle is actually the side wall of the second color filter unit 112 , and the side 110S1 is actually the side wall of the first color filter unit 110 , and the two side walls are in direct contact at a boundary. Similarly, from the top view, the third color filter unit 114 and the first color filter unit 110 in FIG. 1C have sides 114S1 and 110S2 adjacent to each other, and from the cross-sectional view, in FIG. 1A The side 114S1 is actually the side wall of the third color filter unit 114, and the side 110S2 is actually the side wall of the first color filter unit 110, and the two side walls are not in contact with each other, the two side walls separated by a flat layer 116 .

It should be noted that there may also be other configurations between the first color filter unit 110 , the second color filter unit 112 , and the third color filter unit 114 , which will be described in detail later. The embodiments shown in FIGS. 1A to 2 are only for illustration, and the scope of the present invention is not limited thereto.

In one embodiment, the first color filter unit 110 is a red filter unit, the second color filter unit 112 is a blue filter unit, and the third color filter unit 114 is a green filter unit. In other words, in this embodiment, the main spacer 118 is disposed between the red filter unit and the blue filter unit, but not between the green filter unit and any other filter unit. Since the shielding layer 108 corresponding to the main spacer 118 has a larger area, it shields more light. Among red, blue, and green, green has the strongest light intensity. Therefore, by not disposing the main spacer 118 between the green filter unit and any other filter unit, the shielding layer 108 with a larger area corresponding to the main spacer 118 can prevent the shielding layer 108 with a larger area from shielding the green light with stronger intensity, which can improve the display panel. luminous intensity.

See Figure 3, which is a cross-sectional view taken along line 3-3 of Figure 1C. In the embodiment shown in FIG. 3 , there are undercut portions 134 and 136 (undercut regions) between the second substrate 104 and the shielding layer 108 (eg, the row shielding pattern 108C2 ), and some of the first color filter units 110 and the The two color filter units 112 can be respectively filled into the above-mentioned undercut portions 134 and 136 . In addition, some of the third color filter units (not shown in FIG. 3 ) can also be filled into the undercut portions between other second substrates and the shielding layer.

4A-4B are a top view and a cross-sectional view of a display panel 400 according to another embodiment of the present invention. It should be noted that the same or similar elements or film layers as in the foregoing description will be denoted by the same or similar reference numerals, and their materials, manufacturing methods and functions are the same or similar to those described in the foregoing description, so this part will not be repeated hereafter. Repeat. The difference between the embodiment shown in FIGS. 4A-4B and the previous embodiment of FIG. 2 is that the shortest distance between the extension line of the third part of the third color filter unit and the center of the sub-spacer is smaller than that between the fourth part and the sub-spacer. The shortest distance from the center of the spacer.

As shown in FIG. 4A , the shortest distance between the extension line 138 of the third portion 114E1 of the third color filter unit 114 and the center 120C of the sub-spacer 120 is the distance D4 , while the distance between the fourth portion 114E2 and the sub-spacer 120 is the shortest distance D4 The shortest distance of the center 120C is the distance D5, and the distance D4 is smaller than the distance D5, wherein the extension direction of the extension line 138 is the main extension direction of the third portion.

By making the distance D4 smaller than the distance D5, the manufacturing process yield of the display panel can be improved. In detail, when the display device develops towards light, thin and short, the thickness of the flat layer provided on the color filter unit with compliance or blanket property will be reduced, resulting in the flat layer at the edge of the color filter unit. A depression is generated, for example, the depression generated by the flat layer 116 in FIG. 1A corresponding to the side 110S2 of the first color filter unit 110 and the side 114S1 of the third color filter unit 114 . If the recess is located below the center of the sub-spacer, the flatness of the top surface of the spacer will be affected, and the top surface of some sub-spacers will be skewed, resulting in a decrease in the manufacturing process yield of the display panel.

Therefore, in this embodiment, the side edges of the color filter unit are deviated from the center of the sub-spacer thereon, so that the depression of the flat layer can also be deviated from the center of the sub-spacer thereon, and the top surface of the sub-spacer is reduced to be skewed. The probability of , and thus improve the production process yield of the display panel.

In one embodiment, as shown in FIG. 4A, the distance D5 may be about 1.5 times to about 3.5 times the distance D4 (D5=1.5×D4˜3.5×D4), for example, about 2 times to about 3 times (D5= 2×D4～3×D4). Alternatively, the distance D5 may be about 0.5 times to about 1.5 times the radius R2 of the secondary spacer 120 (D5=0.5×R2～1.5×R2), for example, about 0.7 times to about 1.2 times (D5=0.7×R2～ 1.2×R2), or about 1 time (D5=R2).

When the distance D5 is about 1 times the radius R2 of the sub-spacer 120 (D5=R2), it means that the fourth portion 114E2 of the third color filter unit 114 overlaps the edge 120BE of the bottom surface 120B of the sub-spacer 120 .

Furthermore, in one embodiment, as shown in FIG. 4A, the third portion 114E1 of the portion is a straight line segment extending along one of the pair of data lines (eg, data line 126C), and the fourth portion 114E2 is compliant The curved line segment where the bottom edge 120BE of the spacer 120 is curved.

In addition, in the embodiment shown in FIG. 4B , the first color filter unit 110 and the second color filter unit 112 do not overlap, and the first color filter unit 110 and the third color filter unit 114 intersect at a point 140 . In detail, the second color filter unit 112 and the first color filter unit 110 have sides 112S2 and 110S1 adjacent to each other, and the two sides 112S2 and 110S1 are not in contact with each other, and the two sides 112S2 and 110S1 separated by a flat layer 116 . In addition, the third color filter unit 114 and the first color filter unit 110 have sides 114S1 and 110S2 adjacent to each other, and the two sides 114S1 and 110S2 are only in direct contact at point 140 .

It should be noted that there may also be other configurations between the first color filter unit, the second color filter unit, and the third color filter unit. Those skilled in the art can understand that the first color filter unit and the second color filter unit may overlap with each other, intersect at one point, or not overlap with each other. The first color filter unit and the third color filter unit may also overlap each other, intersect at one point, or not overlap each other.

5A-5B are a top view and a cross-sectional view of a display panel 500 according to another embodiment of the present invention. It should be noted that the same or similar elements or film layers as in the foregoing description will be denoted by the same or similar reference numerals, and their materials, manufacturing methods and functions are the same or similar to those described in the foregoing description, so this part will not be repeated hereafter. Repeat. The difference between the embodiment shown in FIGS. 5A-5B and the above-mentioned embodiment in FIGS. 4A-4B is that the second part of the first color filter unit is disposed outside the area corresponding to the main spacer, not in the main spacer within the corresponding area. And the fourth part of the third color filter unit is disposed outside the area corresponding to the sub-spacer, not in the area corresponding to the sub-spacer.

In detail, in the embodiment shown in FIGS. 5A-5B , the first color filter unit 110 and the second color filter unit 112 overlap, and the first color filter unit 110 also overlaps with the third color filter unit 114 overlap. In addition, if the display panel 500 is viewed from a top view, the second portion 110E2 of the first color filter unit 110 is disposed outside the area corresponding to the main spacer 118 , rather than in the area corresponding to the main spacer 118 . within. In addition, if the display panel 500 is viewed from the top view, the fourth portion 114E2 of the third color filter unit 114 is disposed outside the area corresponding to the sub-spacer 120 , rather than being disposed in the area corresponding to the sub-spacer 120 . Inside. In addition, the second portion 110E2 of the first color filter unit 110 and the fourth portion 114E2 of the third color filter unit 114 are both disposed on the shielding layer 108 . In other words, the second portion 110E2 of the first color filter unit 110 and the fourth portion 114E2 of the third color filter unit 114 are both disposed within the corresponding regions of the shielding layer 108 .

In addition, FIG. 6 is a top view and a cross-sectional view of a display panel 600 according to another embodiment of the present invention. It should be noted that the same or similar elements or film layers as in the foregoing description will be denoted by the same or similar reference numerals, and their materials, manufacturing methods and functions are the same or similar to those described in the foregoing description, so this part will not be repeated hereafter. Repeat. The difference between the embodiment shown in FIG. 6 and the foregoing embodiments in FIGS. 1A to 5B is that the shielding layer only has column shielding patterns, but not row shielding patterns.

In detail, in the embodiment shown in FIG. 6 , the shielding layer 108 only has column shielding patterns 108R1 and 108R2 shielding the pair of scan lines, but does not have row shielding patterns shielding the data lines.

In addition, FIG. 7 is a top view and a cross-sectional view of a display panel 700 according to another embodiment of the present invention. It should be noted that the same or similar elements or film layers as in the foregoing description will be denoted by the same or similar reference numerals, and their materials, manufacturing methods and functions are the same or similar to those described in the foregoing description, so this part will not be repeated hereafter. Repeat. The difference between the embodiment shown in FIG. 7 and the foregoing embodiments of FIGS. 1A to 6B is that the display panel does not include a flat layer disposed on the color filter unit.

In detail, in the embodiment shown in FIG. 7 , the display panel 700 does not include a flat layer disposed on the first color filter unit 110 , the second color filter unit 112 and the third color filter unit 114 , and The main spacer 118 directly contacts the first color filter unit 110 and the second color filter unit 112 , and the sub-spacer 120 directly contacts the third color filter unit 114 and the first color filter unit 110 .

In addition, FIG. 8 is a top view and a cross-sectional view of a display panel 800 according to another embodiment of the present invention. It should be noted that the same or similar elements or film layers as in the foregoing description will be denoted by the same or similar reference numerals, and their materials, manufacturing methods and functions are the same or similar to those described in the foregoing description, so this part will not be repeated hereafter. Repeat. The difference between the embodiment shown in FIG. 8 and the aforementioned embodiments of FIGS. 1A to 7 is that the flat layer is blanket disposed on the color filter unit, rather than compliantly disposed on the color filter unit.

In detail, in the embodiment shown in FIG. 8 , the flat layer 116 is blanketed on the first color filter unit 110 , the second color filter unit 112 and the third color filter unit 114 . It should be noted that, although the flat layer 116 is blanketed on the color filter unit in this embodiment, the flat layer will still produce some depressions at the edge of the color filter unit. Therefore, even if the present invention is applied to the display panel having the blanket-deposited flat layer, the manufacturing process yield of the display panel can still be improved.

To sum up, in the embodiment of the present invention, the side edges of the color filter unit are deviated from the center of the spacer thereon, so that the depression of the flat layer can also be deviated from the center of the spacer thereon, and thus the height of the display panel can be improved. Manufacturing process yield.

Although the embodiments of the present invention and their advantages have been disclosed above, it should be understood that those skilled in the art can make changes, substitutions and modifications without departing from the spirit and scope of the present invention. In addition, the protection scope of the present invention is not limited to the manufacturing process, machine, manufacture, material composition, device, method and steps in the specific embodiments described in the specification, and any person with ordinary knowledge in the technical field can disclose from the present invention It is understood in the content that the current or future development of the manufacturing process, machine, manufacture, material composition, device, method and steps, as long as the embodiments described herein can perform substantially the same functions or obtain substantially the same results, all can be in accordance with the present invention use. Therefore, the protection scope of the present invention includes the above-mentioned manufacturing process, machine, manufacture, material composition, device, method and steps. Additionally, each claim constitutes a separate embodiment, and the scope of the present invention also includes combinations of individual claims and embodiments.

Claims (10)

1. A display panel, comprising:

a first substrate including two scan lines;

a second substrate disposed opposite to the first substrate;

the shielding layer is arranged on the second substrate and comprises two rows of shielding patterns for shielding the two scanning lines;

the first color filter unit is arranged on the second substrate; and

a spacer disposed on the first color filter unit, wherein the spacer is disposed on one of the two rows of shielding patterns,

the first color filter unit is provided with a first side edge, the first side edge comprises a first part positioned between the two rows of shielding patterns and a second part positioned on one of the two rows of shielding patterns, the first part is connected with the second part, and one part of the first part is a straight line segment;

the shortest distance between the extension line of the first portion and the center of the spacer is a first distance, the shortest distance between the second portion and the center of the spacer is a second distance, and the first distance is smaller than the second distance.

2. The display panel of claim 1, wherein the first substrate further comprises a data line, the shielding layer further comprises a row of shielding patterns for shielding the data line, and the first portion of the first color filter unit is disposed on the row of shielding patterns.

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

the second color filter unit and the third color filter unit are respectively arranged on the opposite sides of the first color filter unit, wherein the first color filter unit is overlapped with the second color filter unit, and the first color filter unit is not overlapped with the third color filter unit.

4. The display panel of claim 1, wherein an undercut portion is formed between the second substrate and the shielding layer, and a portion of the first color filter fills the undercut portion.

5. The display panel of claim 1, wherein the spacer is a main spacer, and the display panel further comprises:

the second color filter unit and the third color filter unit are respectively arranged on the opposite sides of the first color filter unit; and

the secondary spacer is arranged between the first color filter unit and the third color filter unit, wherein the primary spacer has a first height, the secondary spacer has a second height, and the first height is greater than the second height.

6. The display panel of claim 5, wherein the first color filter is a red filter, the second color filter is a blue filter, and the third color filter is a green filter.

7. The display panel of claim 1, wherein the spacer is a main spacer, and the display panel further comprises:

the second color filter unit and the third color filter unit are respectively arranged on the opposite sides of the first color filter unit; and

a sub spacer disposed on the third color filter unit, wherein the main spacer has a first height, the sub spacer has a second height, the first height is greater than the second height, and the sub spacer is disposed on one of the two rows of shielding patterns,

wherein the third color filter unit has a second side edge, the second side edge comprises a third portion located between the two rows of shielding patterns and a fourth portion located on one of the two rows of shielding patterns, and the third portion is connected to the fourth portion,

wherein the shortest distance between the extension line of the third portion and the center of the sub spacer is a third distance, and the shortest distance between the fourth portion and the center of the sub spacer is a fourth distance, and the third distance is smaller than the fourth distance.

8. The display panel of claim 1, wherein one of the two rows of shielding patterns has an outward extending portion corresponding to the spacer.

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

the flat layer is conformally arranged on the first color filter unit, and the spacer is arranged on the flat layer.

10. The display panel of claim 1, wherein the spacer directly contacts the first color filter unit.

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