CN115268131B

CN115268131B - display panel

Info

Publication number: CN115268131B
Application number: CN202110476763.3A
Authority: CN
Inventors: 赖俊延; 徐维志; 陈谚宗; 叶政谚; 苏振豪
Original assignee: Hannstar Display Corp
Current assignee: Hannstar Display Corp
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2023-12-22
Anticipated expiration: 2041-04-29
Also published as: CN115268131A

Abstract

The invention discloses a display panel which comprises a plurality of first sub-pixel rows and a plurality of second sub-pixel rows. Each first sub-pixel row comprises a plurality of first sub-pixels arranged along a first direction, each first sub-pixel comprises a first common electrode and a first pixel electrode which are arranged on a first substrate, and a first color resistor is arranged on a second substrate. The second sub-pixel rows and the first sub-pixel rows are alternately arranged in a second direction, each second sub-pixel row comprises a plurality of second sub-pixels arranged along the first direction, each second sub-pixel comprises a second pixel electrode arranged on the first substrate, and a second common electrode and a second color resistor are arranged on the second substrate.

Description

Display panel

Technical Field

The present invention relates to a display panel, and more particularly, to a display panel with peep-proof function.

Background

In recent years, users of electronic products pay attention to protecting personal privacy, and in order to prevent contents of screens from being viewed by bystanders, there have been electronic products providing a peep-proof function to maintain the privacy of users. However, in the current peep-proof display panel, the peep-proof element is usually disposed outside the display panel, such that the thickness and weight of the electronic product cannot be effectively reduced.

Disclosure of Invention

The invention provides a display panel for solving the technical problems, and the thickness and the weight of the display panel can be effectively reduced without additionally arranging a peep-proof element outside the display panel.

In order to solve the above technical problems, the present invention provides a display panel, which includes a first substrate, a second substrate, a display medium layer, a plurality of first sub-pixel rows and a plurality of second sub-pixel rows. The first substrate is opposite to the second substrate, and the display medium layer is arranged between the first substrate and the second substrate. Each of the plurality of first sub-pixel rows includes a plurality of first sub-pixels arranged along a first direction, wherein each of the plurality of first sub-pixels includes a first common electrode, a first pixel electrode, and a first color resistor. The first common electrode and the first pixel electrode are arranged on the first substrate, and the first color resistor is arranged on the second substrate. The plurality of second sub-pixel rows and the plurality of first sub-pixel rows are alternately arranged in a second direction, and the second direction is not parallel to the first direction, wherein each of the plurality of second sub-pixel rows comprises a plurality of second sub-pixels arranged along the first direction, and each of the plurality of second sub-pixels comprises a second pixel electrode, a second common electrode and a second color resistance. The second pixel electrode is arranged on the first substrate, and the second common electrode and a second color resistor are arranged on the second substrate.

In the display panel of the present invention, the first subpixel and the second subpixel are adjacently disposed, the first subpixel has a lateral electric field switching type structure, the second subpixel has an electrically controlled birefringence type structure, and the color of the color resistance of the first subpixel is different from the color of the color resistance of the second subpixel. Under the driving state, the first sub-pixel can emit light in the forward direction and the side view direction, and the second sub-pixel can emit light in the side view direction only, so that a user can watch a normal color or picture in the forward direction, and a person beside the user can watch a color or picture different from the color or picture watched by the user, thereby achieving the peep-proof effect. In addition, through the structure of the invention, the thickness and the weight of the display panel can be effectively reduced without additionally arranging the peep-proof element outside the display panel.

Drawings

Fig. 1 is a schematic diagram illustrating a subpixel arrangement of a display panel according to the present invention.

Fig. 2 is a schematic cross-sectional view of a first sub-pixel of the display panel of the present invention.

Fig. 3 is a schematic cross-sectional view of a second sub-pixel of the display panel of the present invention.

Fig. 4 is a schematic partial top view of a first substrate of the display panel of the present invention.

Fig. 5 is a schematic partial top view of a second substrate of the display panel of the present invention.

FIG. 6 is a graph showing the luminance distribution of the second sub-pixel in the off state according to the present invention.

Fig. 7 is a luminance distribution diagram of a second sub-pixel in the driving state according to the present invention.

Fig. 8 is a schematic diagram showing a display panel in a forward direction according to a first embodiment of the present invention.

Fig. 9 is a schematic diagram of a display panel according to a first embodiment of the present invention in a side view.

Fig. 10 is a schematic diagram showing a display panel in a forward direction according to a second embodiment of the present invention.

Fig. 11 is a schematic diagram of a display panel according to a second embodiment of the present invention in a side view.

Reference numerals illustrate: 10-a display panel; 100. 200-a substrate; 102-a first subpixel; 102B, 104B-blue subpixels; 102G, 104G-green subpixels; 102R, 104R-red subpixels; 104-a second subpixel; 106-displaying a dielectric layer; 108-a first common electrode; 110-a first pixel electrode; 112-a first switching element; 114-a first color resistance; 116-a second common electrode; 118-a second pixel electrode; 120-a second switching element; 122-a second color resistance; 124. 126-polarizer; 128-gate; 130-a semiconductor layer; 132-source; 134-drain; 136-a gate insulation layer; 138. 140-an insulating layer; PR 1-a first subpixel row; PR 2-a second subpixel row; SL-slit; v1 and V2-contact holes; x, Y, Z-direction.

Detailed Description

The following description sets forth the preferred embodiments of the invention and, together with the drawings, provides further details of the invention and its intended advantages, as will be apparent to those skilled in the art. It should be noted that the drawings are simplified schematic diagrams, and thus only show components and combinations related to the present invention, so as to provide a clearer description of the basic architecture or implementation of the present invention, and actual components and arrangements may be more complex. In addition, for convenience of explanation, the components shown in the drawings of the present invention are not drawn in the same scale as the number, shape, size, etc. of actual implementations, and the detailed proportion thereof may be adjusted according to the design requirements.

The direction X, direction Y and direction Z are indicated in the following figures. The direction Z may be perpendicular to the substrate 100 or the substrate 200, and the directions X and Y may be parallel to the substrate 100 or the substrate 200. The direction Z may be perpendicular to the direction X and the direction Y, and the direction X may be perpendicular to the direction Y. The following figures may describe the spatial relationship of structures in terms of directions X, Y, and Z.

Fig. 1 is a schematic diagram showing the arrangement of sub-pixels of a display panel according to the present invention. The display panel 10 includes a plurality of sub-pixels disposed on the substrate 100 and/or the substrate 200, and the sub-pixels may be arranged in a matrix or a checkerboard, but not limited thereto. As shown in fig. 1, the display panel 10 includes a plurality of first sub-pixel lines PR1 and a plurality of second sub-pixel lines PR2, and the second sub-pixel lines PR2 and the first sub-pixel lines PR1 are alternately arranged in a direction Y (or referred to as a second direction). Each of the first sub-pixel rows PR1 includes a plurality of first sub-pixels 102 arranged along the direction X (or referred to as a first direction), and each of the second sub-pixel rows PR2 includes a plurality of second sub-pixels 104 arranged along the direction X.

For example, each of the first sub-pixel rows PR1 includes a plurality of red sub-pixels 102R, a plurality of blue sub-pixels 102B and a plurality of green sub-pixels 102G, which may be sequentially and repeatedly arranged in the order of the red sub-pixels 102R, the green sub-pixels 102G and the blue sub-pixels 102B, starting from the first sub-pixel on the left of the first sub-pixel row PR 1. For example, each of the second sub-pixel rows PR2 includes a plurality of blue sub-pixels 104B, a plurality of red sub-pixels 104R and a plurality of green sub-pixels 104G, which may be sequentially and repeatedly arranged in the order of the blue sub-pixels 104B, the red sub-pixels 104R and the green sub-pixels 104G, starting from the first sub-pixel on the left of the second sub-pixel row PR 2.

In the present invention, one of the second sub-pixel rows PR2 is adjacent to one of the first sub-pixel rows PR1 in the direction Y, the plurality of first sub-pixels 102 in the first sub-pixel row PR1 includes a third sub-pixel, and the plurality of second sub-pixels 104 in the second sub-pixel row PR2 includes a fourth sub-pixel. The third subpixel is adjacent to the fourth subpixel in the direction Y, and the color of the color resistance of the third subpixel is different from the color of the color resistance of the fourth subpixel.

Taking a red subpixel 102R (which may be referred to as a third subpixel) of the first subpixel 102 in the first subpixel row PR1 as an example, the red subpixel 102R is adjacent to a second subpixel 104 in the second subpixel row PR2 in the direction Y, and the second subpixel 104 may be a blue subpixel 104B (which may be referred to as a fourth subpixel), but is not limited thereto. In other embodiments, a second sub-pixel 104 adjacent to the red sub-pixel 102R in the direction Y may also be a green sub-pixel 104G.

Taking a green sub-pixel 102G (which may be referred to as a third sub-pixel) of the first sub-pixel 102 in the first sub-pixel row PR1 as an example, the green sub-pixel 102G is adjacent to a second sub-pixel 104 in the second sub-pixel row PR2 in the direction Y, and the second sub-pixel 104 may be a red sub-pixel 104R (which may be referred to as a fourth sub-pixel), but is not limited thereto. In other embodiments, a second sub-pixel 104 adjacent to the green sub-pixel 102G in the direction Y may also be the blue sub-pixel 104B.

Taking a blue sub-pixel 102B (which may be referred to as a third sub-pixel) of the first sub-pixel 102 in the first sub-pixel row PR1 as an example, the blue sub-pixel 102B is adjacent to a second sub-pixel 104 in the second sub-pixel row PR2 in the direction Y, and the second sub-pixel 104 may be a green sub-pixel 104G (which may be referred to as a fourth sub-pixel), but is not limited thereto. In other embodiments, a second sub-pixel 104 adjacent to the blue sub-pixel 102B in the direction Y may be a red sub-pixel 104R.

Referring to fig. 2 to 5, fig. 2 is a schematic cross-sectional view of a first sub-pixel of the display panel of the present invention, fig. 3 is a schematic cross-sectional view of a second sub-pixel of the display panel of the present invention, fig. 4 is a schematic partial top view of a first substrate of the display panel of the present invention, and fig. 5 is a schematic partial top view of a second substrate of the display panel of the present invention. The structure in fig. 2 may correspond to the tangent line A-A 'in fig. 4 and 5, and the structure in fig. 3 may correspond to the tangent line B-B' in fig. 4 and 5.

As shown in fig. 2 and 3, the display panel 10 includes a substrate 100 (which may be referred to as a first substrate), a substrate 200 (which may be referred to as a second substrate), a display medium layer 106, a polarizer 124 (which may be referred to as a first polarizer), and a polarizer 126 (which may be referred to as a second polarizer). The substrate 100 and the substrate 200 are disposed opposite to each other, the display medium layer 106 is disposed between the substrate 100 and the substrate 200, and the display medium layer 106 may be a liquid crystal layer, but is not limited thereto. The polarizer 124 is disposed on the substrate 100, the polarizer 126 is disposed on the substrate 200, and the polarization direction of the polarizer 124 is perpendicular to the polarization direction of the polarizer 126. The substrate 100 or the substrate 200 may be a hard substrate, such as a glass substrate, a plastic substrate, a quartz substrate, or a sapphire substrate, or may be a flexible substrate including a Polyimide (PI) material or a polyethylene terephthalate (polyethylene terephthalate, PET) material, but is not limited thereto.

As shown in fig. 2, each first sub-pixel 102 includes a first common electrode 108, a first pixel electrode 110, a first switching element 112 and a first color resistor 114. As shown in fig. 3, each of the second sub-pixels 104 includes, but is not limited to, a second common electrode 116, a second pixel electrode 118, a second switching element 120, and a second color resistor 122.

In this embodiment, the substrate 100 is a thin film transistor substrate. As shown in fig. 2 and 3, the first switching element 112 and the second switching element 120 may be disposed on the substrate 100. The switching element may include a thin film transistor, but is not limited thereto. The switching element of the present embodiment is exemplified by a bottom gate thin film transistor, but not limited thereto. In other embodiments, the switching element may also be a top gate thin film transistor. The first switching element 112 and the second switching element 120 each include a gate 128, a semiconductor layer 130, a source 132, and a drain 134.

The display panel 10 includes a gate insulating layer 136, the gate 128 and the gate insulating layer 136 are disposed on the substrate 100, and the gate insulating layer 136 covers the gate 128. The semiconductor layer 130 is disposed on the gate insulating layer 136 and overlaps the gate electrode 128. The semiconductor layer 130 may be, for example, amorphous silicon, polysilicon or metal oxide (such as indium gallium zinc oxide), but is not limited thereto.

The source electrode 132 and the drain electrode 134 are disposed on the semiconductor layer 130 and the gate insulating layer 136. In the present embodiment, the gate 128 may be formed by a first metal layer, and the source 132 and the drain 134 may be formed by a second metal layer, but not limited thereto. The first metal layer and the second metal layer may be single metal layers of aluminum, copper, titanium, tungsten, or composite metal layers of molybdenum/aluminum/molybdenum, titanium/aluminum/titanium, titanium/copper …, and the invention is not limited thereto. In addition, the display panel 10 includes an insulating layer 138 disposed over the source 132 and the drain 134.

In the first sub-pixel 102 (fig. 2), the first common electrode 108 is disposed on the insulating layer 138. In addition, the display panel 10 includes an insulating layer 140 disposed on the first common electrode 108 and covering at least the first common electrode 108. The first pixel electrode 110 is disposed on the insulating layer 140 and overlaps the first common electrode 108. The first pixel electrode 110 may be electrically connected to the drain 134 of the first switching element 112 through a contact hole V1 in the insulating layer 138, so that the first switching element 112 is electrically connected to the first pixel electrode 110, but not limited thereto. Further, as shown in fig. 2 and 4, the first pixel electrode 110 includes a plurality of slits SL, and the slits SL and the first common electrode 108 overlap.

The first subpixel 102 includes an in-plane switching (IPS) structure in which a first common electrode 108 and a first pixel electrode 110 are disposed on the substrate 100. In the driving state of the first subpixel 102, the first pixel electrode 110 (and the slit SL) and the first common electrode 108 provide a portion of the display medium layer 106 (e.g., the display medium layer 106 in the first subpixel 102) with a lateral electric field (or fringe field).

As shown in fig. 2 and 5, in the first subpixel 102, the first color resistor 114 is disposed on the substrate 200. For example, the first color resistor 114 in the red subpixel 102R is red, the first color resistor 114 in the blue subpixel 102B is blue, and the first color resistor 114 in the green subpixel 102G is green.

As shown in fig. 3 or 4, in the second subpixel 104, the second pixel electrode 118 is disposed on the substrate 100. As shown in fig. 3, the second pixel electrode 118 is disposed on the insulating layer 138, and the second pixel electrode 118 can be electrically connected to the drain 134 of the second switching element 120 through a contact hole V2 in the insulating layer 138, so that the second switching element 120 is electrically connected to the second pixel electrode 118, but not limited thereto.

As shown in fig. 3 and 5, the second common electrode 116 and the second color resist 122 are disposed on the substrate 200. As shown in fig. 3, the second color resist 122 is disposed between the second common electrode 116 and the substrate 200, but not limited thereto. The second subpixel 104 comprises an electronically controlled birefringence (electrically controlled birefringence, ECB) structure in which the display medium layer 106 is disposed between the second common electrode 116 and the second pixel electrode 118. In the driving state of the second sub-pixel 104, the second pixel electrode 118 and the second common electrode 116 provide a vertical electric field to a portion of the display medium layer 106 (e.g., the display medium layer 106 in the second sub-pixel 104).

As shown in fig. 5, in the present embodiment, the ratio of the area of the second common electrode 116 to the area of the second color resistor 122 is greater than or equal to 0.8 and less than or equal to 0.95, but is not limited thereto. Further, for example, the second color resistor 122 in the red sub-pixel 104R is red, the second color resistor 122 in the blue sub-pixel 104B is blue, and the second color resistor 122 in the green sub-pixel 104G is green.

The gate insulating layer 136, the insulating layer 138 and the insulating layer 140 include an insulating material, such as silicon oxide, silicon nitride or silicon oxynitride, but not limited thereto. In addition, the first common electrode 108, the first pixel electrode 110, the second common electrode 116 and the second pixel electrode 118 may include transparent conductive materials, such as Indium Tin Oxide (ITO), indium zinc oxide (indium zinc oxide, IZO) or aluminum zinc oxide (aluminum zinc oxide, AZO), but not limited thereto.

In addition, in the first sub-pixel 102 and the second sub-pixel 104 of the present embodiment, the display medium layer 106 (liquid crystal layer) may be a positive liquid crystal, the angle between the alignment directions of the substrate 100 and the substrate 200 with respect to the liquid crystal layer may be 0 to 10 degrees, the pretilt angle of the liquid crystal may be 0 to 10 degrees, and the polarization directions of the polarizer 124 and the polarizer 126 are perpendicular to each other, but not limited thereto. Accordingly, the first subpixel 102 can be made to emit light in the forward direction and the oblique direction in the driving state, and the second subpixel 104 can be made to emit light in the oblique direction but not in the forward direction in the driving state.

Referring to fig. 6 and 7, fig. 6 is a luminance distribution diagram of the second sub-pixel in the off state according to the present invention, and fig. 7 is a luminance distribution diagram of the second sub-pixel in the driving state according to the present invention. In fig. 6 and 7, the center of the circle may represent a forward direction, and the forward direction may be parallel to the direction Z or perpendicular to the surface of the substrate 100 or 200. Eight oblique directions (e.g., 10 °, 20 °, 30 °, 40 °, 50 °, 60 °, 70 °, and 80 °) may correspond to eight concentric circles, and the angle of the oblique direction is the angle between the oblique direction and the forward direction. Different angles (e.g., 0 °, 30 °, 60 °, 90 °, 120 °, 150 °, 180 °, 210 °, 240 °, 270 °, 300 °, and 330 °) on the circular edge represent different horizontal directions on a plane (e.g., the plane made up of directions X, Y). The right hand values in fig. 6 and 7 represent light intensity, which may be normalized values, and units may be arbitrary units (a.u.).

As shown in fig. 6, in the off state, the second sub-pixel 104 has a luminance equal to or close to 0 in both the different oblique directions and the horizontal direction, and the luminance ranges, for example, between 0a.u. and 0.008980a.u. As shown in fig. 7, the luminance of the second sub-pixel 104 in the driving state near the center (i.e., the forward direction) is close to 0 or less than 0.01692a.u., and therefore, the light emitted from the second sub-pixel 104 in the driving state can hardly be emitted from the display panel 10 in the forward direction. Further, the luminance is greater than 0 between 120 ° and 240 ° or between 300 ° and 30 ° in the horizontal direction and between 15 ° and 80 ° in the oblique direction. Therefore, in the driving state of the second sub-pixel 104, the light emitted by the second sub-pixel 104 can be emitted out of the display panel 10 along a side view direction.

Next, referring to fig. 8 and 9, fig. 8 is a schematic display diagram of the display panel in the forward direction according to the first embodiment of the invention, and fig. 9 is a schematic display diagram of the display panel in the side view direction according to the first embodiment of the invention. In the first embodiment, the red subpixel 102R in the first subpixel row PR1 is turned on, and the blue subpixel 104B in the second subpixel row PR2 adjacent to the red subpixel 102R in the direction Y is also turned on. In addition, the green sub-pixel 102G and the blue sub-pixel 102B in the first sub-pixel row PR1 are turned off, and the red sub-pixel 104R and the green sub-pixel 104G in the second sub-pixel row PR2 are also turned off.

As shown in fig. 8, since the red sub-pixel 102R and the blue sub-pixel 104B are in the driving state, the light of the red sub-pixel 102R can emit the display panel 10 in the forward direction, whereas the light of the blue sub-pixel 104B cannot emit the display panel 10 in the forward direction. Therefore, when the user views the display panel 10 in the forward direction, the color displayed by the red subpixel 102R (i.e., the first subpixel 102) can be viewed.

As shown in fig. 9, since the red subpixel 102R and the blue subpixel 104B are in the driving state, the light of the red subpixel 102R can emit the display panel 10 in the side view direction, and the light of the blue subpixel 104B can also emit the display panel 10 in the side view direction. Thus, a person located next to the user will see the color displayed by red subpixel 102R (i.e., first subpixel 102) and blue subpixel 104B (i.e., second subpixel 104), which in this embodiment is pink (i.e., a mixture of red and blue).

Referring to fig. 10 and 11, fig. 10 is a schematic view showing a display panel in a forward direction according to a second embodiment of the invention, and fig. 11 is a schematic view showing a display panel in a side view according to a second embodiment of the invention. In the second embodiment, the red and green sub-pixels 102R and 102G in the first sub-pixel row PR1 are turned on, and the blue sub-pixels 104B in the second sub-pixel row PR2 adjacent to the red sub-pixel 102R in the direction Y are also turned on, and the red sub-pixels 104R in the second sub-pixel row PR2 adjacent to the green sub-pixel 102G in the direction Y are also turned on. In addition, the blue subpixel 102B in the first subpixel row PR1 is turned off and the green subpixel 104G in the second subpixel row PR2 is also turned off.

As shown in fig. 10, since the red, green, blue and red sub-pixels 102R, 102G, 104B and 104R are in the driving state, light of the red and green sub-pixels 102R and 102G can be emitted from the display panel 10 in the forward direction, whereas light of the blue and red sub-pixels 104B and 104R cannot be emitted from the display panel 10 in the forward direction. Thus, when a user views the display panel 10 in the forward direction, the color (e.g., yellow) displayed by the red and green subpixels 102R and 102G (i.e., the first subpixel 102) is viewable.

As shown in fig. 11, since the red, green, blue and red sub-pixels 102R, 102G, 104B and 104R are in the driving state, the light of the red and green sub-pixels 102R, 102G can be emitted from the display panel 10 in the side view direction, and the light of the blue and red sub-pixels 104B, 104R can also be emitted from the display panel 10 in the side view direction. Thus, a person located beside the user will see the colors displayed by the red and green sub-pixels 102R and 102G (i.e., the first sub-pixel 102) and the blue and red sub-pixels 104B and 104R (i.e., the second sub-pixel 104), which are pink (i.e., a mixture of red, blue and green) in this embodiment.

Therefore, according to the first and second embodiments, when the display panel 10 is turned on in the peep-proof mode, the first and second sub-pixels 102 and 104 adjacent in the direction Y may be turned on at the same time, so that a person located beside the user views a color or picture different from that viewed by the user.

In summary, in the display panel of the present invention, the first sub-pixel and the second sub-pixel are disposed adjacently, the first sub-pixel has a lateral electric field switching structure, the second sub-pixel has an electrically controlled birefringence structure, and the color of the color resistance of the first sub-pixel is different from the color of the color resistance of the second sub-pixel. Under the driving state, the first sub-pixel can emit light in the forward direction and the side view direction, and the second sub-pixel can emit light in the side view direction only, so that a user can watch a normal color or picture in the forward direction, and a person beside the user can watch a color or picture different from the color or picture watched by the user, thereby achieving the peep-proof effect. In addition, through the structure of the invention, the thickness and the weight of the display panel can be effectively reduced without additionally arranging the peep-proof element outside the display panel.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A display panel, comprising:

a first substrate and a second substrate opposite to the first substrate;

a display medium layer is arranged between the first substrate and the second substrate;

a plurality of first sub-pixel rows, wherein each first sub-pixel row of the plurality of first sub-pixel rows comprises:

the first sub-pixels are arranged along a first direction, wherein each of the first sub-pixels includes a lateral electric field switching structure, and each of the first sub-pixels includes:

a first common electrode and a first pixel electrode are arranged on the first substrate; and

a first color resistor is arranged on the second substrate; and

a plurality of second sub-pixel rows, the plurality of second sub-pixel rows and the plurality of first sub-pixel rows being alternately arranged in a second direction, and the second direction and the first direction being non-parallel, wherein each of the plurality of second sub-pixel rows includes:

a plurality of second sub-pixels are arranged along the first direction, wherein each of the plurality of second sub-pixels includes an electrically controlled birefringence structure, and each of the plurality of second sub-pixels includes:

a second pixel electrode disposed on the first substrate; and

a second common electrode and a second color resistor are arranged on the second substrate,

wherein the first plurality of subpixels includes a third subpixel, the second plurality of subpixels includes a fourth subpixel, the third subpixel is adjacent to the fourth subpixel in the second direction, and a color of the first color resistance of the third subpixel is different from a color of the second color resistance of the fourth subpixel.

2. The display panel of claim 1, wherein in the driving state, the first plurality of sub-pixels emit light in both a forward direction and a side view direction, and the second plurality of sub-pixels emit light only in the side view direction.

3. The display panel of claim 1, wherein a ratio of an area of the second common electrode to an area of the second color resist is greater than or equal to 0.8 and less than or equal to 0.95.

4. The display panel of claim 1, wherein each of the first sub-pixels includes a first switching element and each of the second sub-pixels includes a second switching element, the first switching element and the second switching element are disposed on the first substrate, the first switching element is electrically connected to the first pixel electrode, and the second switching element is electrically connected to the second pixel electrode.

5. The display panel of claim 1, wherein in a driving state of each of the second sub-pixels, the second pixel electrode and the second common electrode provide a portion of the display medium layer with a vertical electric field.

6. The display panel of claim 1, wherein in a driving state of each of the first sub-pixels, the first pixel electrode and the first common electrode provide a portion of the display medium layer with a lateral electric field.

7. The display panel of claim 1, wherein the first pixel electrode comprises a plurality of slits.

8. The display panel of claim 1, further comprising a first polarizer disposed on the first substrate and a second polarizer disposed on the second substrate, wherein a polarization direction of the first polarizer is perpendicular to a polarization direction of the second polarizer.