TWI569076B - Display panel - Google Patents

Description

Display panel

The present invention relates to a display panel, and more particularly to a high resolution display panel.

As the display panel industry matures, display panels are also widely used in a variety of different products to provide a variety of display images, wherein the display panel can use the display medium to adjust the display image. The display medium is filled between the two substrates of the display panel, and when a voltage is supplied, the display medium can be switched between light and dark states to thereby generate different display images.

In order to maintain a certain distance between the two substrates, the display panel may include spacers placed between the two substrates to serve as a fixed pitch material. For example, the spacers may be first fixed on one of the substrates, and then the two substrates are aligned in alignment. However, during the high-resolution (High PPI) display panel combination, the spacer may be misaligned or scratched by another substrate, resulting in light leakage around the spacer. When a light-shielding layer is used to shield a region that may be scratched around the spacer, the aperture ratio of the sub-pixels around the spacer is insufficient, thereby generating dot-like moiré (Dot Mura), and how to compensate for the aperture loss caused by the light-shielding layer. A topic to be solved.

One aspect of the present invention provides a display panel including a first substrate, a second substrate, a display medium layer, at least one main spacer, a light shielding portion, a plurality of first sub-pixels, and a plurality of second sub-pixels. The first substrate has a first penetration area and a second penetration area. The second substrate is disposed opposite to the first substrate. The display medium layer is disposed between the first substrate and the second substrate. The main spacer is disposed between the first substrate and the second substrate, and the orthographic projection of the main spacer in the first substrate falls in the first penetration region. The light shielding portion is disposed between the first substrate and the second substrate, and the main spacer is located in the orthographic projection of the light shielding portion in the first substrate. The first sub-pixel is disposed on the first penetration region of the first substrate and between the display medium layer and the first substrate. The first sub-pixel surrounds the main spacer. The portion of the display medium layer corresponding to the first sub-pixel has a first gap. At least a portion of the second sub-pixel is disposed on the second penetration region of the first substrate and between the display medium layer and the first substrate. The portion of the display medium layer corresponding to the second sub-pixel has a second gap, and the first gap is larger than the second gap.

In one or more embodiments, each of the first sub-pixel and the second sub-pixel includes a first transparent conductive layer, a dielectric layer, and a second transparent conductive layer, respectively. The first transparent conductive layer is disposed between the display medium layer and the first substrate. A dielectric layer is disposed between the display dielectric layer and the first transparent conductive layer. The second transparent conductive layer is disposed between the display medium layer and the dielectric layer.

In one or more embodiments, the first transparent conductive layer is a pixel electrode and the second transparent conductive layer is a common electrode.

In one or more embodiments, the second transparent conductive layer has a plurality An opening.

In one or more embodiments, the first transparent conductive layer is a common electrode and the second transparent conductive layer is a pixel electrode.

In one or more embodiments, the display panel further includes a protective layer disposed between the first sub-pixel and the first substrate, and between the second sub-pixel and the first substrate. The protective layer corresponding to the first sub-pixel has a first region thickness, the protective layer corresponding to the second sub-pixel has a second region thickness, and the second region has a thickness greater than the first region thickness.

In one or more embodiments, the display panel further includes a first protective layer and a second protective layer. The first protective layer is disposed between the first sub-pixel and the first substrate, and between the second sub-pixel and the first substrate, the first protective layer has a first thickness. The second protective layer is disposed between the first protective layer and the second sub-pixel, and is not disposed between the first protective layer and the first sub-pixel, and the second protective layer has a second thickness.

In one or more embodiments, the light shielding portion is disposed between the display medium layer and the second substrate.

In one or more embodiments, the light shielding portion is disposed between the display medium layer and the first substrate.

In one or more embodiments, the orthographic projection of the first sub-pixel on the first substrate surrounds the orthographic projection of the main spacer on the first substrate.

In one or more embodiments, a portion of the second sub-pixel is located on the first penetration region.

In one or more embodiments, the difference between the first gap and the second gap is between about 0.4 microns and 1 micron.

In one or more embodiments, the display panel further includes at least one spacer disposed between the first substrate and the second substrate, and the length of the sub spacers may be shorter than the length of the main spacer.

Since the gap size of the display medium layer is positively correlated with the transmittance of the display medium layer, that is, the larger the gap is, the higher the transmittance is. Therefore, the display panel of the above embodiment adjusts the penetration of the display medium layer by changing the gap size of the display medium layer. The rate, in turn, compensates for the loss of the aperture ratio of the shade.

110‧‧‧First substrate

112‧‧‧First penetration area

114‧‧‧Second penetration area

120‧‧‧second substrate

130‧‧‧Display media layer

140‧‧‧Main spacer

145‧‧‧Separator

150, 150a‧‧ ‧ shading department

155‧‧‧Black matrix

160‧‧‧The first sub-pixel

162, 162a‧‧‧ first transparent conductive layer

164‧‧‧ dielectric layer

166, 166a‧‧‧ second transparent conductive layer

167‧‧‧ openings

168‧‧‧Bridge wiring

170‧‧‧Second subpixel

180‧‧‧protection layer

190‧‧‧ first protective layer

195‧‧‧Second protective layer

210‧‧‧ scan line

220‧‧‧Information line

230‧‧‧Filter layer

A-A, B-B, C-C‧‧‧ segments

G1‧‧‧ first gap

G2‧‧‧Second gap

T1‧‧‧first area thickness

T2‧‧‧Second area thickness

T3‧‧‧first thickness

T4‧‧‧second thickness

Fig. 1 is a top view of a display panel according to an embodiment of the present invention.

Fig. 2A is a cross-sectional view taken along line A-A of Fig. 1.

Fig. 2B is a cross-sectional view showing an embodiment of the line segment B-B of Fig. 1.

Fig. 3 is a cross-sectional view showing another embodiment of the line segment B-B of Fig. 1.

Fig. 4 is a cross-sectional view showing still another embodiment of the line segment A-A of Fig. 1.

Fig. 5 is a top view of a display panel according to another embodiment of the present invention.

Fig. 6 is a cross-sectional view taken along line C-C of Fig. 5.

Figure 7 is a top plan view of a display panel according to another embodiment of the present invention.

Figure 8 is a top plan view of a display panel according to still another embodiment of the present invention.

The embodiments of the present invention are disclosed in the following drawings, and for the purpose of clarity However, it should be understood that these practical details are not intended to limit the invention. That is, in some embodiments of the invention, these practical details are not necessary. In addition, some of the conventional structures and elements are shown in the drawings in a simplified schematic manner in order to simplify the drawings.

Referring to FIG. 1 to FIG. 2B together, FIG. 1 is a top view of a display panel according to an embodiment of the present invention, FIG. 2A is a cross-sectional view along line AA of FIG. 1, and FIG. 2B is a A cross-sectional view of one embodiment of line segment BB of Figure 1. The display panel includes a first substrate 110, a second substrate 120, a display medium layer 130, at least one main spacer 140, a light blocking portion 150, a plurality of first sub-pixels 160, and a plurality of second sub-pixels 170. The first substrate 110 and the second substrate 120 may be a glass substrate, a flexible substrate, a plastic substrate, a flexible substrate, or the like, but are not limited thereto. The display medium layer 130 may be a liquid crystal layer, an electrowetting material layer, an electrophoretic material layer, or the like, but is not limited thereto. The liquid crystal layer may be a positive liquid crystal layer or a negative liquid crystal layer or the like. The main spacer 140 may be, for example, a column spacer or a spherical spacer. The main spacer 140 may be formed of a photoresist material to form a photoresist spacer. The light shielding portion 150 is a patterned light shielding layer which may be formed together with the black matrix or separately formed of a light shielding material. The above structures and materials are well known to those skilled in the art and will not be described again. The first substrate 110 has a first penetration region 112 and a second penetration region 114. The second substrate 120 is disposed opposite to the first substrate 110. The display medium layer 130 is interposed between the first substrate 110 and the second substrate 120. The main spacer 140 is disposed between the first substrate 110 and the second substrate 120, And the orthographic projection of the main spacer 140 on the first substrate 110 falls in the first penetration region 112. The light shielding portion 150 is disposed between the first substrate 110 and the second substrate 120 , and the main spacer 140 is located in the orthographic projection of the light shielding portion 150 in the first substrate 110 . The first sub-pixel 160 is disposed on the first penetration region 112 of the first substrate 110 and between the display medium layer 130 and the first substrate 110. The portion of the display medium layer 130 corresponding to the first sub-pixel 160 has a first gap G1. At least a portion of the second sub-pixel 170 is disposed on the second penetration region 114 of the first substrate 110 and between the display dielectric layer 130 and the first substrate 110. For example, in FIG. 1, the second sub-pixel 170 is placed on the second penetration region 114. The portion of the display medium layer 130 corresponding to the second sub-pixel 170 has a second gap G2, and the first gap G1 is larger than the second gap G2. Taking the liquid crystal layer as an example, the first gap G1 and the second gap G2 correspond to the cell gaps (Cell Gap) of the two places, respectively. For the sake of clarity, other elements between the protective layer 180 and the first substrate 110 have been omitted in the cross-sectional views herein.

In the present embodiment, the first gap G1 and the second gap G2 correspond to the thickness of the display medium layer 130, and the first penetration area 112 and the second penetration area 114 are all area areas that allow visible light to penetrate. In addition, the display panel further includes a plurality of scan lines 210 and a plurality of data lines 220. The scan lines 210 and the data lines 220 are alternately arranged to define a first sub-pixel 160 and a second sub-pixel 170.

Taking the liquid crystal layer as an example, since the transmittance of the display medium layer 130 is positively correlated with the gap size of the display medium layer 130, that is, the larger the gap, the higher the transmittance, so the display panel of the present embodiment uses the change display. medium The gap size of the layer 130 is adjusted to adjust its transmittance, thereby compensating for the aperture ratio lost by the light shielding portion 150. In detail, the main spacer 140 serves as a material for maintaining a fixed pitch between the first substrate 110 and the second substrate 120. During the process of aligning the first substrate 110 and the second substrate 120, the main spacer 140 may be The first substrate 110 is inaccurate or scratched, resulting in light leakage around the main spacer 140. Therefore, in the present embodiment, the area of the light shielding portion 150 can be increased to cover a possible light leakage region. However, in this way, the light shielding portion 150 also blocks the penetration region of the adjacent pixel unit (for example, the first sub-pixel 160 in the embodiment), thereby lowering the aperture ratio and causing the brightness near the light shielding portion 150. It descends to form a Dot Mura, which causes the image to appear flawed. Therefore, the first gap G1 corresponding to the first sub-pixel 160 can be adjusted such that the first gap G1 is larger than the second gap G2 (wherein the second sub-pixel 170 is not covered by the light shielding portion 150 in the vertical direction in this embodiment). (Limited), the transmittance of the first sub-pixel 160 is increased to compensate for the aperture ratio caused by the first sub-pixel 160 around the light-shielding portion 150.

Please refer to Figure 2A. In one or more embodiments, the first gap G1 may be, for example, about 3.8 micrometers to 4.4 micrometers, and the second gap G2 may be, for example, about 3.4 micrometers, so the difference between the first gap G1 and the second gap G2 is It is about 0.4 micrometers to 1 micrometer, but the invention is not limited thereto. When the display medium of the display medium layer 130 is a liquid crystal molecule, the difference range described above enables the display panel to achieve the effect of changing the transmittance, and compensates for the aperture loss, so that the first sub-pixel 160 and the second sub-pixel 170 The two degrees shown are approximately equal, so the problem of Dot Mura can be solved.

In this embodiment, the display panel further includes a protective layer 180, Between the first sub-pixel 160 and the first substrate 110, and between the second sub-pixel 170 and the first substrate 110. The protective layer 180 corresponding to the first sub-pixel 160 has a first region thickness T1, the protective layer 180 corresponding to the second sub-pixel 170 has a second region thickness T2, and the second region thickness T2 is greater than the first region thickness T1. In detail, the display medium layer 130 of different gaps can be achieved by adjusting the thickness of the protective layer 180. As shown, the gap of the display dielectric layer 130 is inversely proportional to the thickness of the protective layer 180, that is, the smaller the thickness of the protective layer 180, the larger the gap of the display dielectric layer 130. Since the thickness T2 of the second region is greater than the thickness T1 of the first region, the first gap G1 is larger than the second gap G2. The protective layer 180 of different thicknesses can be achieved, for example, by using a Half-Tone Mask process or a Multi-Tone Mask process, but the invention is not limited thereto.

Next, please refer to FIG. 3, which is a cross-sectional view of another embodiment along the line BB of FIG. 1, wherein the other between the first protective layer 190 and the first substrate 110 in FIG. 3 is clear for the sake of clarity. The components have been omitted. The difference between this embodiment and the embodiment of FIG. 2B lies in the structure of the protective layer. In the embodiment, the display panel further includes a first protective layer 190 and a second protective layer 195. The first protective layer 190 is disposed between the first sub-pixel 160 and the first substrate 110, and between the second sub-pixel 170 and the first substrate 110, and the first protective layer 190 has a first thickness T3. The second protective layer 195 is disposed between the first protective layer 190 and the second sub-pixel 170, and is not disposed between the first protective layer 190 and the first sub-pixel 160, and the second protective layer 195 has a second thickness. T4. In detail, by the presence or absence of the second protective layer 195, the gap size of the display medium layer 130 can be determined, that is, the first The presence of the second protective layer 195 reduces the gap of the display dielectric layer 130. The second thickness T4 of the second protective layer 195 is the difference between the first gap G1 and the second gap G2, which may be about 0.4 micrometers to 1 micrometer. In addition, the first protective layer 190 and the second protective layer 195 may be different materials, wherein the first protective layer 190 is, for example, an organic material layer, and the second protective layer 195 may be an inorganic material layer, but the invention is not limited thereto. . In one or more embodiments, a portion of the second protective layer 195 corresponding to the first sub-pixel 160 may be removed by etching. When the first protective layer 190 and the second protective layer 195 are made of different materials, A protective layer 190 can serve as an etch stop layer for the second protective layer 195, such that the difference between the first gap G1 and the second gap G2 can be made more accurate. Other details of the present embodiment are the same as those of the embodiment of FIG. 2B, and therefore will not be described again.

Then please return to Figure 2A. In the present embodiment, the light shielding portion 150 is placed between the display medium layer 130 and the second substrate 120. The components of the first substrate 110 and the first substrate 110 and the display dielectric layer 130 may, for example, constitute an active device substrate. In addition, the display panel may further include a filter layer 230. The second substrate 120 and the components located between the second substrate 120 and the display medium layer 130 may be formed, for example, as a counter substrate including the filter layer 230, corresponding to each sub-pixel. The filter layer 230 may be separated by a black matrix 155, and the light shielding portion 150 may be formed together with the black matrix 155, but the invention is not limited thereto.

Next, please refer to Fig. 4, which is a cross-sectional view showing still another embodiment of the line segment A-A of Fig. 1. The difference between this embodiment and the embodiment of FIG. 2A lies in the position of the light shielding portion. In the present embodiment, the light shielding portion 150a Placed between the display medium layer 130 and the first substrate 110. Each of the components between the first substrate 110 and the first substrate 110 and the display dielectric layer 130 may constitute, for example, a color filter on Array (COA) including a filter layer (not shown), and the second substrate 120 is, for example, It is a glass substrate. As shown in the figure, the light shielding portion 150a can be disposed between the first substrate 110 and the protective layer 180, and the material of the light shielding portion 150a is, for example, metal. In other embodiments, the display panel may further include a black matrix (not shown) disposed between the display medium layer 130 and the first substrate 110, and the light shielding portion 150a may be fabricated together with the black matrix, but not invented. Not limited to this. Other details of the present embodiment are the same as those of the embodiment of FIG. 2A, and therefore will not be described again.

Then return to Figure 2B. In this embodiment, each of the first sub-pixels 160 and the second sub-pixels 170 respectively include a first transparent conductive layer 162 , a dielectric layer 164 , and a second transparent conductive layer 166 . The first transparent conductive layer 162 is disposed between the display medium layer 130 and the first substrate 110. A dielectric layer 164 is disposed between the display dielectric layer 130 and the first transparent conductive layer 162. The second transparent conductive layer 166 is disposed between the display dielectric layer 130 and the dielectric layer 164. Such a structure can be applied to a liquid crystal display panel of Fringe Field Switching (FFS) technology. The structure can also be applied to a liquid crystal display panel (not shown) of In-Plane Switching (IPS) technology. The first sub-pixel 160 and the second sub-pixel 170 can generate a horizontal electric field to control the brightness of the display medium layer 130 by applying a voltage between the first transparent conductive layer 162 and the second transparent conductive layer 166, respectively. Dark state switching. In this embodiment, the first transparent conductive layer 162 may be a common electrode, and the second transparent conductive layer 166 may be a pixel electrode.

However, the present invention is not limited to the above structure. Next, please refer to FIG. 5 and FIG. 6 together. FIG. 5 is a top view of a display panel according to another embodiment of the present invention, and FIG. 6 is a cross-sectional view taken along line C-C of FIG. 5. The difference between this embodiment and the embodiment of Fig. 1 lies in the position of the common electrode and the pixel electrode. In this embodiment, the first transparent conductive layer 162a may be a pixel electrode, and the second transparent conductive layer 166a may be a common electrode. The second transparent conductive layer 166a can be electrically connected to the bridge 168. In addition, in the embodiment, the second transparent conductive layer 166a may have a plurality of openings 167 for controlling the arrangement direction of the display medium in the display medium layer 130. Other details of the present embodiment are the same as those of the embodiment of Fig. 1, and therefore will not be described again.

Then please return to Figure 2A. In this embodiment, the display panel further includes at least one pair of spacers 145 disposed between the first substrate 110 and the second substrate 120, and the length of the sub spacers 145 may be shorter than the length of the main spacers 140. The spacer 145 does not directly contact one of the first substrate 110 and the second substrate 120. The orthographic projection of the sub-spacer 145 on the first substrate 110 may fall on the first penetration region 112 and/or the second penetration region 114, and the invention is not limited thereto. The sub spacer 145 may be used to assist the main spacer 140 such that when a strong pressure is applied between the first substrate 110 and the second substrate 120, the sub spacer 145 can prevent the first substrate 110 and the second substrate 120 from colliding with each other and being damaged. .

Then return to Figure 1 and Figure 2A. In the present embodiment, the first sub-pixel 160 approximately surrounds the main spacer 140 , and the orthographic projection of the first sub-pixel 160 on the first substrate 110 surrounds the main spacer 140 on the first substrate 110 . Orthographic projection. In the first diagram, the number of the first sub-pixels 160 is four, and the first sub-pixels 160 are partially obscured by the light-shielding portion 150 in the vertical direction, so that the transmittance is higher. The first sub-pixel 160 (compared to the second sub-pixel 170) can compensate for the brightness around the light-shielding portion 150, for example, the transmittance of each first sub-pixel 160 can be increased by 8% to reduce the point cloud The problem of patterning avoids image quality defects.

Next, please refer to FIG. 7, which is a top view of a display panel according to another embodiment of the present invention. The difference between this embodiment and the embodiment of Fig. 1 lies in the area of the first penetration region 112 and the number of the first sub-pixels 160. In the present embodiment, the number of the first sub-pixels 160 is six, and the first penetration area 112 is the area covered by the orthographic projection of the first sub-pixels 160 on the first substrate 110. Compared with FIG. 1, since the number of the first sub-pixels 160 of the present embodiment is large, the transmittance of each first sub-pixel 160 can be slightly higher than that of the first sub-picture of FIG. The prime 160 is low, for example, the transmittance of the second sub-pixel 170 is increased by 6%, but the invention is not limited thereto. In this way, between the first region thickness T1 and the first region thickness T2 (both as shown in FIG. 2B), or between the first thickness T3 and the second thickness T4 (both as shown in FIG. 3) The difference between the differences is not too large, so that the display medium placed thereon can be prevented from being staggered. Other details of the present embodiment are the same as those of the embodiment of Fig. 1, and therefore will not be described again.

Next, please refer to FIG. 8, which is a top view of a display panel according to still another embodiment of the present invention. The difference between this embodiment and the embodiment of Fig. 1 lies in the number of first sub-pixels 160. In this embodiment, the number of the first sub-pixels 160 is two, and the second sub-pixels 170 are located at the A penetrating region 112. The transmittance of the first sub-pixel 160 can be adjusted according to the number thereof, for example, the transmittance of the second sub-pixel 170 is increased by 16%, but the invention is not limited thereto. Other details of the present embodiment are the same as those of the embodiment of Fig. 1, and therefore will not be described again.

In each of the above embodiments, the display medium of the display medium layer 130 may be liquid crystal molecules (that is, the display panel is a liquid crystal display panel), and may be an electrophoretic display material of the microcapsule (that is, the display panel is an electrophoretic display panel), or The electrowetting display material is a polar molecule (that is, the display panel is an electrowetting display panel), and the invention is not limited thereto.

The present invention provides the above structure, and adjusts the first sub-circle around the shading portion The gap of the pixels is such that the first gap of the first sub-pixel is greater than the second gap of the second sub-pixel. Since the gap size of the display medium layer is positively correlated with the transmittance of the display medium layer, that is, the larger the gap is, the higher the transmittance is. Therefore, the display panel of the above embodiment adjusts the penetration of the display medium layer by changing the gap size of the display medium layer. The rate further compensates for the loss of the aperture ratio of the first sub-pixel around the shading portion, so that the display brightness of the first sub-pixel and the second sub-pixel are approximately equal, and the problem of the dotted moiré is reduced.

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.

110‧‧‧First substrate

112‧‧‧First penetration area

114‧‧‧Second penetration area

120‧‧‧second substrate

130‧‧‧Display media layer

140‧‧‧Main spacer

145‧‧‧Separator

150‧‧‧Lighting Department

155‧‧‧Black matrix

160‧‧‧The first sub-pixel

162‧‧‧First transparent conductive layer

164‧‧‧ dielectric layer

170‧‧‧Second subpixel

180‧‧‧protection layer

230‧‧‧Filter layer

A-A‧‧ ‧ line segment

G1‧‧‧ first gap

G2‧‧‧Second gap

T1‧‧‧first area thickness

T2‧‧‧Second area thickness

Claims (13)

A display panel includes: a first substrate having a first penetration region and a second penetration region; a second substrate disposed opposite the first substrate; a display dielectric layer disposed on the first substrate Between the second substrate and the second substrate; at least one main spacer is disposed between the first substrate and the second substrate, and the orthographic projection of the main spacer in the first substrate falls in the first penetration region a light shielding portion disposed between the first substrate and the second substrate, wherein the main spacer is located in an orthographic projection of the light shielding portion on the first substrate; a plurality of first sub-pixels are placed in the first a first penetration region of a substrate between the display medium layer and the first substrate, the first sub-pixels surrounding the main spacer, wherein a portion corresponding to the first sub-pixels The display medium layer has a first gap; and a plurality of second sub-pixels, at least a portion of the second sub-pixels are disposed on the second penetration region of the first substrate, and are located on the display medium layer Between the first substrates, wherein the portions of the second sub-pixels are corresponding to the display A second layer having a gap, the first gap is greater than the second gap, and the difference between the first gap and the second gap is less than or equal to 1 micron. The display panel of claim 1, wherein each of the first sub-pixels and the second sub-pixels respectively comprise: a first transparent conductive layer disposed on the display medium layer and the first substrate between; a dielectric layer disposed between the display medium layer and the first transparent conductive layer; and a second transparent conductive layer disposed between the display medium layer and the dielectric layer. The display panel of claim 2, wherein the first transparent conductive layer is a pixel electrode, and the second transparent conductive layer is a common electrode. The display panel of claim 2, wherein the second transparent conductive layers have a plurality of openings. The display panel of claim 2, wherein the first transparent conductive layer is a common electrode, and the second transparent conductive layer is a pixel electrode. The display panel of claim 1, further comprising: a protective layer disposed between the first sub-pixel and the first substrate, and the second sub-pixel and the first substrate, corresponding to The protective layer of the first sub-pixel has a first region thickness, and the protective layer corresponding to the second sub-pixel has a second region thickness, and the second region has a thickness greater than the first region thickness. The display panel of claim 1, further comprising: a first protection layer disposed between the first sub-pixel and the first substrate, and between the second sub-pixel and the first substrate, The first protective layer Having a first thickness; and a second protective layer disposed between the first protective layer and the second sub-pixel, and not disposed between the first protective layer and the first sub-pixel, The second protective layer has a second thickness. The display panel of claim 1, wherein the light shielding portion is disposed between the display medium layer and the second substrate. The display panel of claim 1, wherein the light shielding portion is disposed between the display medium layer and the first substrate. The display panel of claim 1, wherein the orthographic projection of the first sub-pixels on the first substrate surrounds the orthographic projection of the main spacer on the first substrate. The display panel of claim 1, wherein a part of the second sub-pixels are located on the first penetration area. The display panel of claim 1, wherein the difference between the first gap and the second gap is about 0.4 micrometers to 1 micrometer. The display panel of claim 1, further comprising: at least one spacer disposed between the first substrate and the second substrate, and the length of the sub spacer is shorter than the length of the main spacer.