TWI528073B - Display panel - Google Patents

Description

Display panel

The present invention relates to a display panel, and more particularly to an alignment structure of components inside a display panel.

Generally, the liquid crystal display panel has a liquid crystal layer sandwiched between two glass substrates. Taking a thin film transistor liquid crystal display as an example, the upper glass substrate has a color filter layer, and the lower glass substrate has a thin film transistor and a pixel electrode. The pixel electrode is coupled to the thin film transistor. When the current passes through the thin film transistor, an electric field change occurs, causing the liquid crystal molecules to deflect, thereby changing the polarity of the light, and then using the polarizing plate to determine the light and dark state of the light. Each of the pixel electrodes can respectively correspond to a red, blue or green color resistance on the color filter layer, and the light deflected by the liquid crystal molecules passes through the color filter layer to form a color image on the display panel. Therefore, high-precision alignment is required between the color filter substrate and the thin film transistor substrate, which may make it difficult for the display panel to display the desired color.

The method for determining the alignment is conventionally provided, and the alignment mark is respectively disposed at a position opposite to the color filter layer substrate and the thin film transistor substrate, and the alignment layer mark can be transmitted after the color filter layer substrate and the thin film transistor substrate are assembled. Determining the alignment of the color filter substrate and the thin film transistor substrate Degree, the alignment mark is usually permeable to light. Therefore, the color filter layer substrate and the thin film transistor substrate have a problem of light leakage at the alignment mark after assembly.

One aspect of the present invention is to provide a display panel to solve the problems of the prior art.

According to an embodiment of the invention, a display panel includes a first substrate, a second substrate, a patterned light shielding layer, at least a first alignment strip, at least a second alignment strip, and a display medium layer. The second substrate is disposed opposite to the first substrate, and the display area and the non-display area surround the display area between the first substrate and the second substrate. The patterned light shielding layer is disposed on the first substrate and located in the non-display area. The at least one first alignment strip is disposed on the patterned light shielding layer, the at least one second alignment strip is disposed on the second substrate and located in the non-display area, and the orthographic projection of the second alignment strip on the first substrate, and the first The alignment bars at least partially overlap. The display medium layer is disposed between the first substrate and the second substrate and located in the display area.

In one or more embodiments of the present invention, the material of the first alignment strip is blue color resistance, red color resistance, green color resistance, or any combination thereof.

In one or more embodiments of the present invention, the display panel further includes a metal layer, the metal layer is located in the non-display area of the second substrate, and the metal layer has a first opening, and the second alignment strip is located in the first opening.

In one or more embodiments of the invention, the orthographic projection of the patterned light-shielding layer on the second substrate at least partially overlaps the first opening of the metal layer.

According to another embodiment of the present invention, a display panel includes a first substrate, a second substrate, at least a first alignment strip, a metal layer, and a display dielectric layer. The second substrate is disposed opposite to the first substrate, and the display area and the non-display area surround the display area between the first substrate and the second substrate. At least one first alignment strip is located in the non-display area of the first substrate. The metal layer is located in the non-display area of the second board, and the metal layer includes at least one first opening, and the orthographic projection of the first alignment strip on the second substrate at least partially falls in the first opening. The display medium layer is disposed in the display area and between the first substrate and the second substrate.

In one or more embodiments of the present invention, the display panel further includes a patterned light shielding layer, the patterned light shielding layer is located in the non-display area of the first substrate, and the patterned light shielding layer includes a second opening, and the first alignment strip is located In the second opening.

In one or more embodiments of the present invention, the display panel further includes a color resist to cover the second opening.

In one or more embodiments of the present invention, the first pair of strips and the edge of the second opening have at least one gap therebetween.

In one or more embodiments of the present invention, the display panel further includes a color resist covering at least the gap, wherein the orthographic projection of the first alignment strip on the second substrate falls in the first opening.

In one or more embodiments of the present invention, the gap has a width of 1 micrometer (μm) or more and 5 micrometers (μm) or less.

In the above embodiments, the display device of the present invention may be in one or more embodiments. After the first substrate and the second substrate are assembled, detecting whether the first substrate and the second substrate are aligned, and improving the first substrate and the opening of the second substrate by the color resistance of the first substrate or the alignment strip Light leakage phenomenon that occurs after the second substrate is assembled.

In one or more embodiments, the display device of the present invention can accurately determine the overlapping result of the plurality of first alignment bars on the first substrate and the plurality of second alignment bars or openings on the second substrate. The amount of offset after the first substrate is aligned with the second substrate.

10, 20, 30, 40‧‧‧ display panels

100‧‧‧First substrate

101‧‧‧Color filter layer

120‧‧‧ patterned shade layer

121, 221, 321‧‧‧ the first pair of bars

130‧‧‧metal layer

131, 231, 331‧‧ first opening

132, 420‧‧‧ second alignment strip

150‧‧‧ Display media layer

151‧‧‧ display area

152‧‧‧ non-display area

180‧‧‧First polarizer

190‧‧‧Second polarizer

199‧‧‧Support

200‧‧‧second substrate

201‧‧‧pixel area

232, 332‧‧‧ second opening

220, 320‧‧‧ color resistance

423‧‧‧ third checkpoint

430‧‧‧ third opening

D1‧‧‧First distance

D2‧‧‧Second distance

D3‧‧‧ third distance

R‧‧‧first column

S‧‧‧Second column

P, P1, P2, P3, P4, P5‧‧ ‧ gap

In order to make the invention and its advantages more apparent, the description of the drawings is as follows: FIG. 1 is an exploded view of an embodiment of the display panel of the present invention.

2 is a cross-sectional view of the display panel of the present invention taken along line AA' of FIG. 1.

Fig. 3A is a front elevational view showing the first substrate of Fig. 2 of the present invention.

Fig. 3B is a front elevational view showing the second substrate of Fig. 2 of the present invention.

FIG. 3C is a partial enlarged view of the first pair of bit bars in FIG. 3A.

FIG. 4A is a schematic diagram showing an exemplary embodiment of the alignment of the first pair of strips and the second pair of strips viewed from one side of the second substrate of FIG. 2. FIG.

FIG. 4B is a schematic diagram showing an exemplary embodiment in which the first pair of strips and the second pair of strips are misaligned as viewed from one side of the second substrate of FIG. 2. FIG.

FIG. 5 is a cross-sectional view showing another embodiment of the display panel of the present invention, Its section position is the same as Figure 2.

Fig. 6A is a front elevational view showing the first substrate of Fig. 5 of the present invention.

Fig. 6B is a front elevational view showing the second substrate of Fig. 5 of the present invention.

FIG. 7A is a schematic diagram showing an exemplary embodiment of the misalignment of the first substrate and the second substrate in FIG. 5. FIG.

FIG. 7B is a schematic diagram showing another exemplary embodiment of the misalignment of the first substrate and the second substrate in FIG. 5.

Fig. 8 is a cross-sectional view showing still another embodiment of the display panel of the present invention, the cross-sectional position of which is the same as Fig. 2.

Fig. 9A is a front elevational view showing the first substrate of Fig. 8.

Fig. 9B is an enlarged view showing the outermost first pair of strips in Fig. 9A.

FIG. 9C is a schematic diagram showing an exemplary embodiment of the misalignment of the first substrate and the second substrate in FIG. 8. FIG.

Fig. 10A is a cross-sectional view showing still another embodiment of the display panel of the present invention, the cross-sectional position of which is the same as Fig. 2.

FIG. 10B is a front elevational view showing the first substrate of FIG. 10A.

The embodiments of the present invention are disclosed in the following drawings, and for the purpose of illustration However, it should be understood that these practical details are not intended to limit the invention. In addition, the drawings are for illustrative purposes only and are not drawn to the original dimensions. For ease of understanding, the same elements in the following description will be denoted by the same symbols. Bright.

Please refer to FIG. 1 , which illustrates an embodiment of a display panel of the present invention. As shown in the figure, the display panel 10 is provided with a first polarizing plate 180, a first substrate 100, a display medium layer 150, a second substrate 200, and a second polarizing plate 190 in this order from top to bottom.

The first substrate 100 is disposed opposite to the second substrate 200, and the display area 151 and the non-display area 152 are distinguished between the first substrate 100 and the second substrate 200, wherein the non-display area 152 surrounds the periphery of the display area 151. The display medium layer 150 is disposed in the display area 151 and interposed between the first substrate 100 and the second substrate 200.

In this embodiment, the display panel 10 is a Thin Film Transistor (TFT) liquid crystal display, but is not limited thereto. In other embodiments, the display panel 10 can be an organic light emitting diode display panel, an electrophoretic display panel, a plasma display panel, or other type of display panel.

Taking the display panel 10 as a TFT liquid crystal display as an example, the display medium layer 150 may include a liquid crystal molecular layer, the first substrate 100 may be a color filter (CF) substrate, and the second substrate 200 may be a TFT substrate. More specifically, a portion of the first substrate 100 opposite to the display region 151 may be provided with a color filter layer 101, and a portion of the second substrate 200 opposite to the display region 151 may be provided with a pixel region 201. The pixel region 201 may include elements such as a thin film transistor, a pixel electrode, etc., which are generally known in the art and will not be described herein.

In addition, the display panel 10 further includes a patterned light shielding layer 120 and a metal layer 130. The patterned light shielding layer 120 is disposed on the first substrate 100 and located in the non-display area 152. In detail, the patterned light shielding layer 120 is disposed on the first substrate. The surface of 100 faces the second substrate 200, and the position of the patterned light shielding layer 120 is set relative to the position of the non-display area 152.

Similarly, the metal layer 130 is disposed on the second substrate 200 and located in the non-display area 152. In detail, the metal layer 130 is disposed on the surface of the second substrate 200 and faces the patterned light shielding layer 120, and the metal layer 130 is disposed at a position relative to the position of the non-display area 152. The metal layer 130 can serve as a circuit layer of an electronic component in the pixel region 201. The patterned light shielding layer 120 is, for example, a black matrix (BM). After the first substrate 100 and the second substrate 200 are assembled, the light shielding layer 120 is patterned. It can be used to block the metal layer 130.

In an embodiment, in order to accurately align the first substrate 100 and the second substrate 200, an alignment structure 99 may be disposed at a position opposite to the first substrate 100 and the second substrate 200. Moreover, in some embodiments, the alignment structure 99 may have a vernier scale in micrometers (μm), so that the first substrate 100 and the second substrate 200 can be accurately aligned by the vernier scale, and can be calculated in micrometers. (μm) is the offset of the unit. It should be noted that FIG. 1 only shows the alignment structure 99 on the second substrate 200. The subsequent embodiment will show a cross-sectional view along AA' to explain the first substrate 100 and the second substrate of each embodiment in detail. The alignment structure of 200.

Please refer to FIG. 2, which illustrates an embodiment of the display panel of the present invention along the line AA' of FIG. 1. As shown, the display panel 10 further includes a plurality of first alignment bars 121 and a plurality of second alignment bars 132. A plurality of first alignment strips 121 are disposed on the patterned light shielding layer 120. In this embodiment, the material of the first alignment strip 121 may be blue color resistance, red color resistance, green color resistance or any combination thereof, which may be combined with the color filtering in FIG. 1 . Layer 101 is formed in the same process.

A plurality of second alignment strips 132 are disposed on the second substrate 200 and located in the non-display area 152. In the embodiment, the metal layer 130 may have a first opening 131 and a plurality of second alignment strips 132 are received in the first opening 131. The second alignment strip 132 of the present embodiment may have the same material as the metal layer 130. When the product is actually manufactured, the second alignment strip 132 may be formed in the same process as the metal layer 130.

It can be seen from FIG. 2 that since the first alignment strip 121 is disposed on the patterned light shielding layer 120, after the first substrate 100 and the second substrate 200 are paired, if the first substrate 100 and the second substrate 200 are to be detected, In the case of alignment, it is necessary to strike positive light from the second substrate 200 and view the alignment of the first alignment strip 121 and the second alignment strip 132 from one side of the second substrate 200 (pointed by the arrow). After the alignment condition is detected, the front projection of the patterned light shielding layer 120 on the second substrate 200 overlaps with the first opening 131 of the metal layer 130. Therefore, the display panel 10 of the embodiment is in the backlight module. In the state of being turned on (not shown), light leakage does not occur at the first opening 131 of the second substrate 200. Therefore, this embodiment can improve the light leakage problem of the conventional alignment mark.

In addition, in this embodiment, by the design of the plurality of first alignment strips 121 and the plurality of second alignment strips 132, the offset of the alignment between the first substrate 100 and the second substrate 200 can be detected. The following instructions.

First, the arrangement of the first pair of bit bars 121 and the second pair of bit bars 132 will be first described. Referring to FIG. 2, FIG. 3A and FIG. 3B together, FIG. 3A is a front view showing the first substrate 100 of FIG. 2 of the present invention. Fig. 3B is a front elevational view showing the second substrate 200 of Fig. 2 of the present invention. As can be seen from FIG. 3A, the plurality of first alignment strips 121 on the first substrate 100 can be arranged on the patterned light shielding layer 120 along the X direction. In this embodiment, each of the first pair of strips 121 may be elongated and have a long side and a short side. The long sides of the first pair of strips 121 are opposite and substantially parallel to each other, and the long sides of the two adjacent first pair of strips 121 may be separated by a first distance D1. In some embodiments, the lengths of the first pair of strips 121 may be equal or approximate, but are not limited thereto. In this embodiment, the length of the first first alignment strip 121, the last first alignment strip 121, and the first alignment strip 121 at the intermediate position in the X direction may be greater than the first alignment of the other positions. The length of the strip 121, by the first pair of strips 121 of different lengths, allows the overlap between the first pair of strips 121 and the second pair of strips 132 to be easily observed, and to facilitate identification and reading of the first pair. The deviation value between the bit 121 and the second alignment bar 132.

Next, please refer to FIG. 3A and FIG. 3C together, and FIG. 3C is a partial enlarged view of the first pair of bit bars in FIG. 3A. The display panel 10 of the present embodiment may further include a plurality of supports 199 disposed adjacent to the first alignment strips 121. For example, the first alignment strip 121 is a rectangular strip, and the support 199 is located at four corners of the first alignment strip 121, and the heights of the respective supports 199 are similar, so that the first substrate 100 and the second substrate 200 are assembled. The support 199 can serve as a buffer structure when assembling between the first substrate 100 and the second substrate 200, and the first alignment strip 121 of the first substrate 100 and the second alignment strip 132 of the second substrate 200 are It is not easy to offset when it is aligned.

Next, please refer to Figure 3B. As shown in the figure, each of the second alignment strips 132 on the second substrate 200 may be arranged in the first direction 131 in the X direction. The second pair of strips 132 can be elongated and have a long side and a short side. The long sides of each of the second alignment bars 132 are opposite and substantially parallel to each other. In addition, the second alignment strips 132 of the embodiment may be arranged in a juxtaposed first column R and a second column S. Wherein, in the X direction, the length of the first second alignment strip 132, the last second alignment strip 132, and the second alignment strip 132 in the intermediate position in the first column R may be greater than the second position in other positions. The length of the bit strip 132 is opposite, and the long sides of the two adjacent second pair of strips 132 in the first column R may be separated by a second distance D2. The length of the first second alignment strip 132 and the last second alignment strip 132 in the second column S may be greater than the length of the second alignment strip 132 at other locations, and the two adjacent columns S in the second column S The long sides of the second pair of strips 132 may be separated by a third distance D3. The second pair of bit bars 132 at the intermediate position in the second column S may be U-shaped, and the second pair of bit bars 132 of the U-shape open to face the short sides of the second pair of bit bars 132 in the first column S . Furthermore, the first column R is aligned with the second alignment strip 132 of the second column S. That is, the short sides of the second pair of bit bars 132 in the first column R face the spacing between adjacent second pair of bit bars 132 in the second column S.

In the embodiment, the first distance D1, the second distance D2, and the third distance D3 are not the same. The first substrate 100 and the second substrate can be made by the unequal first, second and third distances D1, D2 and D3, and the staggered first column R and the second alignment strip 132 of the second column S When the substrate 200 is aligned, an offset from a small to a large range is detected.

In more detail, in the embodiment, but not limited thereto, the first distance D1 and the second distance D2 may be different by 1 μm, and the first distance D1 and the third distance D3 may be different by 2 μm, so that the first substrate 100 and the first substrate 100 Second substrate 200 In the alignment, the difference between the first distance D1 and the second distance D2 or the difference between the first distance D1 and the third distance D3 may be used to determine the offset of the first substrate 100 and the second substrate 200 after the alignment. the amount. Hereinafter, the method of determining the offset amount of the first substrate 100 and the second substrate 200 of the present embodiment will be described in detail. First, after the first substrate 100 and the second substrate 200 are assembled, positive light can be struck by one side of the second substrate 200, and the second alignment strip 132 is observed on the first substrate from the direction indicated by the arrow in FIG. The orthographic projection on 100 partially overlaps the first alignment strip 121. In this embodiment, the offset of the first substrate 100 relative to the second substrate 200 can be determined by the observed overlapping result, which is exemplified as follows.

Please refer to FIG. 4A and FIG. 4B , wherein FIG. 4A illustrates one of the alignment of the first pair of strips 121 and the second pair of strips 132 viewed from one side of the second substrate 200 of FIG. 2 . For the purpose of the exemplary embodiment, FIG. 4B is an illustration of one of the first alignment 121 and the second alignment strip 132 "misaligned" viewed from one side of the second substrate 200 of FIG. A schematic of an embodiment. In FIGS. 4A and 4B, in order to clearly show the overlap of the first alignment strip 121 and the second alignment strip 132, only the second alignment strip 132 is filled with hatching.

As shown in FIG. 4A, in the present embodiment, if the first substrate 100 and the second substrate 200 are completely aligned, the second alignment strip 132 in the central position of the first column R is positive on the first substrate 100. The projection should be aligned with the first alignment strip 121 at the central position, or nearly aligned; at the same time, the opening of the U-shaped second alignment strip 132 at the central position of the second column S should be aligned with the first alignment strip 121. Cut, or almost cut.

It is worth mentioning that the first pair of strips 121 at the central position of the present embodiment respectively have five first alignment strips 121, and the second pair of strips 132 at the central location have five second sides respectively. The alignment strip 132, and the first alignment strip 121 and the second alignment strip 132 are almost the same width as an example. Since the first distance D1 and the second distance D2 are different by 1 μm, in the case where the first substrate 100 and the second substrate 200 are aligned, the first alignment strip 121 and the second alignment strip 132 of the first column S do not have The overlapped portions represent offsets of 5 μm, 4 μm, 3 μm, 2 μm, and 1 μm from the outside to the middle, respectively.

In this manner, the first substrate 100 and the second substrate 200 are relatively offset by the alignment strips of the pair of the first alignment strips 121 and the second alignment strips 132. Transfer amount.

For example, as shown in FIG. 4B, the orthographic projection of the second second alignment strip 132 on the left side of the center of the first column R is aligned with the second first alignment strip 121 on the left side of the center column, indicating that the second substrate 200 should be It is 2 μm leftward with respect to the first substrate 100.

Therefore, since the second pair of strips 132 at the central position of the first column R have five second alignment strips 132 on the left and right sides, the second pair of strips 132 of the first column R can be used to determine +/- Offset within 5μm.

Similarly, in this embodiment, the offset between the first substrate 100 and the second substrate 200 can be determined by using the overlap between the second alignment strip 132 of the second column S and the first alignment strip 121. Moreover, the second pitch D2 is different from the first pitch D1 (shown in FIG. 3B) by 2 μm, and because the U-shaped second alignment strip 132 has five second alignment bars 132 on both sides, the second column S The second pair of bars 132 can be used to determine the offset within +/- 10 μm.

In this way, in addition to the leakage of light by using the design of the patterned light shielding layer 120, the embodiment can overlap the plurality of first alignment bars 121 on the first substrate 100 by using the plurality of second alignment strips 132. In the case, the offset amount of the first substrate 100 and the second substrate 200 is determined.

It should be noted that, in this embodiment, an embodiment having a plurality of first and second alignment strips 121 and 132 is disclosed, but is not limited thereto. In some embodiments, the number of the first pair of strips 121 may have only one, and the number of the second pair of strips 132 may have only one, and after the first substrate 100 and the second substrate 200 are assembled, the first observation is performed. It is known whether the front projection of the two pairs of strips 132 on the first substrate 100 overlaps with the first alignment strips 121, and whether the first substrate 100 and the second substrate 200 are accurately aligned.

Next, please refer to FIG. 5, which is a cross-sectional view showing another embodiment of the display panel of the present invention, the cross-sectional position of which is the same as FIG. As shown, display panel 20 includes a plurality of first alignment bars 221 located in non-display area 152. The patterned light shielding layer 120 includes a second opening 232 , and each of the first alignment strips 221 is located in the second opening 232 . The metal layer 130 includes a plurality of first openings 231, wherein the second openings 232 are larger in size than the first openings 231. In more detail, the size of the first opening 231 is similar to the size of the first pair of strips 221 in the second opening 232.

In other words, the outer contour of the first alignment strip 221 is complementary to the outer contour of the first opening 231. That is, the first pair of strips 221 are elongated, and the first opening 231 is an elongated opening. Therefore, when the first substrate 100 is aligned with the second substrate 200, the orthographic projection of the first alignment strip 221 on the second substrate 200 may at least partially (or completely) fall into the first opening 231, so that the implementation In the state in which the backlight module (not shown) is turned on, the first alignment strip 221 can block the light from leaking from the first opening 231, thereby improving the light leakage problem of the prior art.

Referring to FIG. 5 , in some embodiments, the display panel 20 may further include a color resist 220 covering the second opening 232 and the first alignment strip 221 . The color resistance 220 can be blue color resistance, red color resistance or green color resistance. After the first substrate 100 and the second substrate 200 are assembled by the arrangement of the color resists 220, if the orthographic projection of the first alignment strip 221 on the second substrate 200 does not completely overlap the first opening 231, the color can still be The color of the resistor 220 causes the light to be converted into a less noticeable color through the first opening 231.

For a better understanding, please refer to FIG. 6A and FIG. 6B, FIG. 6A is a front view of the first substrate 100 of FIG. 5, and FIG. 6B is a front view of the second substrate 200 of FIG. Figure. As shown, the second opening 232 is substantially a rectangular notch on the patterned light shielding layer 120, and the plurality of first alignment bars 221 may be included in the second opening 232. That is, the second opening 232 is sized to accommodate at least a plurality of first alignment bars 221 arranged in parallel in the X direction.

The first alignment strip 221 of the embodiment is similar to the first alignment strip 121 of the second embodiment, and the two adjacent first alignment strips 221 are separated by a first distance D1. The difference between the first alignment strip 221 of the embodiment and the first alignment strip 121 of the second embodiment is that the material of the first alignment strip 221 of the embodiment is the same as that of the patterned light shielding layer 120. The patterned light shielding layers 120 are formed together in the same process.

The first opening 231 is substantially a hollow gap on the metal layer 130. In more detail, the present embodiment substantially fills the first opening 131 of the embodiment of FIG. 3B and hollows out the position of the second alignment strip 132. Therefore, the first opening 231 of the embodiment is similar in appearance and arrangement to the second alignment strip 132 in FIG. 3B. That is, each of the first openings 231 may be arranged in a juxtaposed first column R and a second column S, and the adjacent first openings 231 in the first column R are apart from the second distance D2, and the phases in the second column S The first opening 231 is adjacent to the third distance D3, and the first distance D1 and the second distance D2 may be different by 1 μm, and the first distance D1 and the third distance D3 may be different by 2 μm.

In this way, by aligning the first alignment strip 221 on the first substrate 100 with the first opening 231 on the second substrate 200, and from one side of the first substrate 100 (in the direction indicated by the arrow) or the second On one side of the substrate 200 (in the direction indicated by the arrow), the overlap between the first alignment strip 221 and the first opening 231 can be observed, and the offset of the alignment between the first substrate 100 and the second substrate 200 can be determined.

Hereinafter, the method of determining the offset amount of the first substrate 100 and the second substrate 200 of the present embodiment will be described in detail. First, in this embodiment, after the first substrate 100 and the second substrate 200 are assembled, the first substrate 100 or the second substrate 200 can be simultaneously illuminated, and the orthographic projection of the first alignment strip 221 can be observed. The overlapping of the first openings 231, and the offset of the first substrate 100 with respect to the second substrate 200 can be determined by the observed overlapping result, as exemplified below.

Please refer to FIG. 7A and FIG. 7B , which respectively illustrate two different exemplary embodiments of the first substrate and the second substrate misalignment in FIG. 5 . The offset of the first substrate 100 relative to the second substrate 200 of this embodiment The interpretation method is similar to FIG. 4A and FIG. 4B. As shown in FIG. 7A and FIG. 7B, the first column R in the figure can be used to interpret the offset within +/- 5 μm, and the second column S can be used for interpretation. An offset within +/- 10 μm, and the third first alignment strip 221 on the left side of the second column S in FIG. 7A is aligned with the first opening 231, thus representing the first substrate 100 relative to the second substrate 200 The left side is 6μm. Similarly, the third first alignment strip 221 on the right side of the first column R in FIG. 7B is aligned with the first opening 231, thus representing that the first substrate 100 is 3 μm to the right of the second substrate 200.

In this way, the first alignment strip 221 can be used to prevent the light from leaking from the first opening 231 by setting the first alignment strip 221 opposite to the position of the first opening 231. The overlap of the pair of strips 221 and the first opening 231 accurately calculates the offset amount after the alignment between the first substrate 100 and the second substrate 200.

Next, please refer to FIG. 8 , which is a cross-sectional view showing still another embodiment of the display panel of the present invention, the cross-sectional position of which is the same as FIG. 2 . As shown in the figure, the display panel 30 includes at least one first alignment strip 321 , and the patterned light shielding layer 120 includes at least one second opening 332 , and each of the first alignment strips 321 is disposed one by one in each of the second openings 332. The metal layer 130 includes at least one first opening 331, wherein each of the first openings 331 has a size similar to each of the second openings 332.

In this embodiment, the first alignment strip 321 and the patterned light shielding layer 120 may be formed of the same material, but not limited thereto. In some embodiments, the first pair of bit bars 321 may be formed by stacking color resists, such as stacking color resists of two different colors.

A gap P is formed between each of the first pair of strips 321 and the edge of the corresponding second opening 332. The display panel 30 further includes a color resist 320 covering the gap P, and the color resist 320 may be red, blue, or green. Color resistance.

When the first substrate 100 is aligned with the second substrate 200, the orthographic projection of the first alignment strip 321 on the second substrate 200 falls in the first opening 331. In addition, the orthographic projection of the metal layer 130 on the first substrate 100 partially overlaps the second opening 332 of the patterned light shielding layer 120, and the color resist 320 covers the gap P, so that the display panel 30 of the embodiment is in the backlight module. In the state in which (not shown) is turned on, the light passing through the gap P is converted into a less noticeable color by the color resist 320, thereby improving the light leakage problem.

It is worth mentioning that the width of the gap P can be greater than or equal to 1 μm and less than or equal to 5 μm, so that when the first substrate 100 and the second substrate 200 are aligned, the first substrate 100 and the second substrate can be accurately determined by the gap P. Whether the substrate 200 is aligned, and if there is no alignment, the offset between the first substrate 100 and the second substrate 200 can be measured by the gap P amount.

Hereinafter, the method of determining the offset amount of the first substrate 100 and the second substrate 200 of the present embodiment will be described in detail.

Please refer to FIG. 9A, which is a front view showing the first substrate of FIG. 8. As shown in the figure, in the embodiment, the display panel 30 has five first alignment strips 321 , and the patterned light shielding layer 120 is arranged in a grid shape in the display area to define a sub-pixel area therebetween. Between the patterned light-shielding layers 120 of the non-display area is filled with black photoresist. The patterned light shielding layer 120 also includes five second openings 332 accommodating the first alignment strips 321 , and each of the first alignment strips 321 has a gap P1 , P2 with the edge of the second opening 332 , respectively. P3, P4 and P5, wherein P1 is 5 μm, P2 is 4 μm, P3 is 3 μm, P4 is 2 μm, and P5 is 1 μm.

In more detail, please refer to the enlarged view of the outermost first pair of position bars 321 in FIG. 9A shown in FIG. 9B. As shown, the first alignment strip 321 is disposed substantially at a central location within the second opening 332. That is, the gap P1 between the periphery of the first pair of strips 321 and the four edges of the second opening 332 is 5 μm. In this way, when the first substrate 100 is aligned with the second substrate 200, whether the gap P1 is blocked by the metal layer 130 of the second substrate 200, the first substrate 100 and the second substrate 200 are determined to be in the entire two-dimensional plane. The offset amount on the upper substrate, that is, the offset amount of the first substrate 100 and the second substrate 200 in the X direction and the Y direction is simultaneously determined.

Please refer to FIG. 9C , which illustrates an exemplary embodiment of the misalignment of the first substrate 100 and the second substrate 200 in FIG. 8 . First, in this embodiment, after the first substrate 100 and the second substrate 200 are assembled, and one side of the first substrate 100 or the second substrate 200 is lighted (pointed by the arrow), whether the gap is observed by the metal layer can be observed. 130 occlusion.

Next, in FIG. 9C, the gap P3 to the left of the third first alignment strip 321 of the outermost number of the first substrate 100 is only partially obscured by the metal layer 130 of the second substrate 200, and thus This alignment bar 321 observes a phenomenon of light leakage. However, the gaps P4 and P5 on the left side of the two opposite alignment strips 321 in the figure are blocked by the metal layer 130 without light leakage. Since the gap P3 which is only partially shielded and has light leakage is located on the left side of the first alignment strip 321 and has a width of 3 μm, it is understood that the first substrate 100 is 3 μm leftward with respect to the second substrate 200.

With reference to FIG. 1 , the display panel 30 of the present embodiment can detect the alignment of the first substrate 100 and the second substrate 200 after the first substrate 100 and the second substrate 200 are assembled. After the polarizing plate 180 and the second polarizing plate 190, the alignment of the first substrate 100 and the second substrate 200 is confirmed by controlling the potential of the pixel region 201 on the second substrate 200.

In detail, in this embodiment, by controlling the potential of the pixel region 201 on the second substrate 200, whether the corresponding color resistance 320 displays a color is adjusted, so that the first polarizing plate 180 and the second polarizing plate 190 can be removed. In the case of the case, the alignment of the first substrate 100 and the second substrate 200 is confirmed. For example, for a Normally Black product, if the pixel area 201 is given a low potential, then both the display area 151 and the color resistance 320 display a black screen, so there is no light leakage problem when displayed. If the pixel region 201 is given a high potential, the color resist 320 can pass the light and display the color, thereby confirming the alignment of the first substrate 100 and the second substrate 200. In contrast, for a Normally White product, if the pixel region 201 is given a low potential, the color resist 320 can pass light and display a color, thereby confirming the alignment of the first substrate 100 and the second substrate 200. . If the pixel area 201 is given a high potential, then both the display area 151 and the color resist 320 display a black screen, so there is no light leakage problem when displayed.

Next, please refer to FIG. 10A and FIG. 10B. FIG. 10A illustrates another embodiment of the display panel of the present invention along the line AA′ of FIG. 1 , and FIG. 10B illustrates the first section of FIG. 10A . A front view of a substrate. The difference between this embodiment and the embodiment of FIG. 8 is that the display panel of this embodiment 40 further includes a second alignment strip 420 and a third alignment strip 423, and the first alignment strip 321 further includes a third opening 430, and the second alignment strip 420 is located in the third opening 430, wherein the second alignment The material of the strip 420 is the same as the first alignment strip 321 and the patterned light shielding layer 120.

The third alignment strip 423 is located in the first opening 331 of the metal layer 130, and the third alignment strip 423 is made of the same material as the metal layer 130, and can be formed in the same process as the metal layer 130. In this embodiment, the orthographic projection of the third alignment strip 423 on the first substrate 100 at least partially overlaps with the second alignment strip 420, so that the embodiment is compared to the embodiment of FIG. When the substrate 100 is aligned with the second substrate 200, whether the first substrate 100 and the second substrate 200 are aligned can be quickly determined by the overlapping of the third alignment strip 423 and the second alignment strip 420. In addition, the method for determining the offset of the alignment between the first substrate 100 and the second substrate 200 in this embodiment and the embodiment in FIG. 8 is similar, and will not be described herein.

In view of the above, the above embodiments of the present invention can effectively improve the alignment by blocking the opening on the alignment structure of the metal layer by the alignment strip or the color resistance. The light leakage problem of the structure. In addition, the above embodiment can more accurately calculate the offset between the two substrates by the alignment of the alignment bars.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and the present invention can be modified and modified without departing from the spirit and scope of the present invention. The scope is subject to the definition of the scope of the patent application attached.

10‧‧‧ display panel

100‧‧‧First substrate

120‧‧‧ patterned shade layer

121‧‧‧The first pair of bars

130‧‧‧metal layer

131‧‧‧First opening

132‧‧‧Second checkpoint

152‧‧‧ non-display area

200‧‧‧second substrate

Claims (19)

A display panel includes: a first substrate; a second substrate disposed opposite to the first substrate; and a display area and a non-display area between the first substrate and the second substrate surround the display area; a patterned light shielding layer disposed on the first substrate and located in the non-display area; at least one first alignment strip disposed on the patterned light shielding layer and located between the patterned light shielding layer and the second substrate At least one second alignment strip disposed on the second substrate and located in the non-display area, the orthographic projection of the second alignment strip on the first substrate at least partially overlapping the first alignment strip; The display medium layer is disposed between the first substrate and the second substrate and located in the display area. The display panel of claim 1, further comprising: at least one support disposed at one end of the first pair of strips. The display panel of claim 1, wherein the material of the first alignment strip is blue color resistance, red color resistance, green color resistance or any combination thereof. The display panel of claim 1, wherein the second alignment strip is made of metal. The display panel of claim 1, further comprising: a metal layer located in the non-display area of the second substrate, wherein the metal layer has a first opening, and the second alignment strip is located in the first opening. The display panel of claim 5, wherein the metal layer is the same material as the second alignment strip. The display panel of claim 5, wherein the orthographic projection of the patterned light-shielding layer on the second substrate at least partially overlaps the first opening of the metal layer. A display panel includes: a first substrate; a second substrate disposed opposite to the first substrate; and a display area and a non-display area between the first substrate and the second substrate surround the display area; a first pair of strips located in the non-display area of the first substrate; a metal layer located in the non-display area of the second substrate, the gold The genus layer includes a plurality of first openings, an orthographic projection of each of the first aligning strips on the second substrate at least partially in a corresponding one of the first openings; and a display medium layer disposed on the display And between the first substrate and the second substrate. The display panel of claim 8, further comprising: a patterned light shielding layer on the non-display area of the first substrate, the patterned light shielding layer comprising a second opening, the first alignment strip being located in the second In the opening. The display panel of claim 9, further comprising a color resist covering the second opening. The display panel of claim 9, wherein the first alignment strip is the same material as the patterned light shielding layer. The display panel of claim 9, wherein the orthographic projection of the metal layer on the first substrate at least partially overlaps the second opening of the patterned light shielding layer. The display panel of claim 9, wherein the first alignment strip has at least one gap between the edges of the second opening. The display panel of claim 13, further comprising: a color resistance covering at least the gap; wherein the orthographic projection of the first alignment strip on the second substrate falls in the first opening. The display panel of claim 14, further comprising: at least one second alignment strip, the first alignment strip includes a third opening, and the second alignment strip is located in the third opening. The display panel of claim 15, wherein the first alignment strip and the second alignment strip are the same material as the patterned light shielding layer. The display panel of claim 15, further comprising: at least one third pair of strips located in the first opening, an orthographic projection of the third pair of strips on the first substrate, and the second alignment The bars overlap at least partially. The display panel of claim 17, wherein the third alignment strip is made of metal. The display panel according to claim 13, wherein the gap has a width of 1 μm or more and 5 μm or less.