JP3192846U - Display panel and display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display panel and a display device having high transmittance. A display panel has a first substrate 11, a second substrate 12, a liquid crystal layer 13, and a pixel array arranged to face the first substrate. The liquid crystal layer is arranged between the first and second substrates, the pixel array is placed on the first substrate, and has at least one pixel P. The pixel includes a first electrode layer 141, an insulating layer 142, and a second electrode layer 143, the insulating layer is arranged between the first and second electrode layers, and the second electrode layer n of the electrode portion 1431. The electrodes are arranged in parallel to the first direction X with a predetermined distance from each other. When the width of the electrode portion in the first direction is W and the maximum width of the light emitting region of the pixel is Ax, the following mathematical formula (n is a positive integer) is satisfied. [Selection diagram] FIG. 1B

Description

  The present invention relates to a display panel and a display device, and more particularly, to a display panel and a display device having a high transmittance.

  With the advancement of science and technology, flat panel display devices have already been widely applied in many fields, especially liquid crystal display devices are thin in structure, have low power consumption and no emission, For example, it is used in various electronic devices such as cellular phones, portable multimedia devices, notebook computers, liquid crystal televisions, and liquid crystal monitors, and is gradually replacing conventional cathode ray tube display devices.

  As a conventional display device, a liquid crystal display device mainly including a liquid crystal display panel (LCD panel) and a backlight module (Backlight Module), both of which are opposed to each other, is well known. In such a liquid crystal display device, the liquid crystal display panel includes a color filter substrate, a thin film transistor substrate, and a liquid crystal layer disposed between the two, and a plurality of arrays are arranged by the color filter substrate, the thin film transistor substrate, and the liquid crystal layer. Pixel units to be formed can be formed. In addition, light emitted from the backlight module is transmitted through the liquid crystal display panel and displays a color to form an image via each pixel unit of the liquid crystal display panel.

  In the case of the same brightness, a display device having a display panel with high transmittance saves more power. In each field, the transmittance of the display panel is improved, the purpose of power saving is realized, and the competitiveness of the product is increased. We are making constant efforts.

  In view of the above, an object of the present invention is to provide a display panel and a display device having high transmittance, thereby enhancing the competitiveness of products.

In order to achieve the above object, a display panel according to the present invention includes a first substrate, a second substrate disposed opposite to the first substrate, the first substrate, and the second substrate. A liquid crystal layer disposed between the substrate and a pixel array disposed on the first substrate and having at least one pixel, the pixel comprising: a first electrode layer; an insulating layer; A second electrode layer, wherein the insulating layer is disposed between the first electrode layer and the second electrode layer, and the second electrode layer has n electrode portions. The electrode portions are arranged in parallel along the first direction at a predetermined distance, the electrode width of each electrode portion in the first direction is W, the pixel has a light emitting region, and the light emission When the maximum width of the region in the first direction is Ax, the following formula (where n is a positive integer, W and A The unit, are satisfied, which is a micro-meter).

In order to achieve the above object, a display device according to the present invention includes a display panel, and the display panel includes a first substrate and a second substrate disposed to face the first substrate. A liquid crystal layer disposed between the first substrate and the second substrate, and a pixel array disposed on the first substrate and including at least one pixel, The pixel includes a first electrode layer, an insulating layer, and a second electrode layer, and the insulating layer is disposed between the first electrode layer and the second electrode layer, and The second electrode layer has n electrode portions, and these electrode portions are arranged in parallel along the first direction at a predetermined distance from each other, and the electrode width in the first direction of each electrode portion is defined as W. When the pixel has a light emitting region and the maximum width of the light emitting region in the first direction is Ax, (In formula, n is a positive integer, the unit of W and Ax is a micrometer) are satisfied.

  In the display panel and the display device, when light passes through the pixel, the pixel has a luminance distribution formed along the first direction, and the maximum width of the light emitting region in the first direction is The full width at half maximum of the luminance distribution is preferable.

  In the display panel and the display device, it is preferable that the pixel further includes a scanning line, and an extending direction of the scanning line is substantially parallel to the first direction.

  In the display panel and the display device, the second electrode layer further includes a first connection portion, and the first connection portion is provided around the outer peripheral edge of the electrode portion, It is preferable that they are connected.

  In the display panel and the display device, the second electrode layer further includes a second connection portion, and the second connection portion is disposed on both sides of the electrode portion facing each other, and is disposed on the electrode portion. It is preferable that they are connected.

As described above, in the display panel and the display device according to the present invention, the pixel array of the display panel has at least one pixel, and the insulating layer of the pixel is disposed between the first electrode layer and the second electrode layer. ing. The second electrode layer has n electrode portions, and these electrode portions are arranged in parallel along the first direction at a predetermined distance from each other. Further, when the electrode width in the first direction of each electrode portion is W and the maximum width in the first direction of the light emitting region of the pixel is Ax, the following formula (where n is a positive integer) is satisfied. ing.
Thus, when the number of electrodes of the second electrode layer, the width of the electrodes, and the maximum width Ax in the first direction of the light emitting region of the pixel satisfy the above formula, the area of the dark stripes in the area of the light emitting region of the pixel Can be minimized to maximize the transmittance of the pixel. For this reason, the display panel and the display device according to the present invention have high transmittance and can increase the competitiveness of the product.

FIG. 3 is a schematic diagram illustrating an arrangement of one pixel in a display panel according to a preferred embodiment of the present invention. It is a schematic diagram which shows the cross section by the AA line in FIG. 1A. It is a schematic diagram which shows the structure of the 2nd electrode layer in FIG. 1B. It is a schematic diagram which shows the relative position of the 2nd electrode layer of the pixel in the display panel in FIG. 1A, and the generated dark stripe. It is a schematic diagram which shows the relative position of the brightness | luminance of a pixel and a 2nd electrode layer. It is a curve figure which shows the luminance distribution along the 1st direction of the pixel in FIG. 2A. It is a figure which shows the image of one pixel of the display panel in FIG. 1A. FIG. 6 is a schematic view showing a cross section of a display panel according to another preferred embodiment of the present invention. It is a schematic diagram which shows the 2nd electrode layer in the display panel in FIG. 3A. FIG. 10 is a schematic diagram showing an arrangement of one pixel in a display panel according to still another preferred embodiment of the present invention. FIG. 10 is a schematic diagram showing an arrangement of one pixel in a display panel according to still another preferred embodiment of the present invention. 1 is a schematic view illustrating a display device according to a preferred embodiment of the present invention.

  Hereinafter, preferred embodiments of a display panel and a display device according to the present invention will be described with reference to the drawings. However, the present invention is not limited to the following embodiments. In the drawings, the same components will be described with the same reference numerals.

First, an embodiment of the present invention will be described with reference to FIGS. 1A, 1B, and 1C. FIG. 1A is a schematic diagram showing an arrangement of one pixel P in a display panel 1 according to a preferred embodiment, FIG. 1B is a schematic diagram showing a cross section taken along line AA in FIG. 1A, and FIG. FIG. 2B is a schematic diagram showing a structure of a second electrode layer 143 in FIG. 1B. In the present embodiment, the display panel 1 may be a fringe field switching (FFS) type liquid crystal display panel, or may be other horizontal drive type liquid crystal display panel, and is not particularly limited. . For easy understanding, in FIG. 1A, in the display panel 1, two scanning lines S, two data lines D, one pixel P, and the first electrode layer 141 and the second electrode layer 143 thereof. Only the arrangement of the display panel 1 is not shown.
In this embodiment, as shown in FIGS. 1A and 1B, a first direction X (horizontal direction), a second direction Y (vertical direction), and a third direction Z are shown, and the first direction X, The two directions Y and the third direction Z are oriented substantially perpendicular to each other. Among them, the first direction X and the extending direction of the scanning line S are substantially parallel, the second direction Y and the extending direction of the data line D are substantially parallel, and the third direction Z is Both the reverse direction of the first direction X and the reverse direction of the second direction Y are perpendicular.

  The display panel 1 includes a first substrate 11, a second substrate 12, and a liquid crystal layer 13. The first substrate 11 and the second substrate 12 are disposed to face each other, and the liquid crystal layer 13 is disposed between the first substrate 11 and the second substrate 12. Moreover, the 1st board | substrate 11 and the 2nd board | substrate 12 are made from a translucent material, and a glass substrate, a quartz substrate, a plastic substrate etc. are mentioned as a translucent material, for example, There is no limitation in particular.

  The display panel 1 further includes a pixel array arranged on the first substrate 11. This pixel array has at least one pixel P. In the present embodiment, a case where a plurality of pixels are included is illustrated, and these pixels are arranged in a state of being sandwiched between the first substrate 11 and the second substrate 12, and the first direction X and Arranged in a matrix along the second direction Y. The display panel 1 further includes a plurality of scanning lines S and a plurality of data lines D. The plurality of scanning lines S and the plurality of data lines D are arranged so as to intersect with each other and are arranged perpendicular to each other. A pixel array region is defined.

  As illustrated in FIG. 1B, the pixel P includes a first electrode layer 141, an insulating layer 142, and a second electrode layer 143. In the present embodiment, the first electrode layer 141, the insulating layer 142, and the second electrode layer 143 are sequentially directed from the bottom to the top on the side of the first substrate 11 facing the second substrate 12. Are arranged. The data line D and the first electrode layer 141 are disposed on the first substrate 11. Here, the first electrode layer 141 is disposed inside the two adjacent data lines D and the two adjacent scanning lines S.

The insulating layer 142 is covered on the first electrode layer 141 and the data line D, and the second electrode layer 143 is disposed on the insulating layer 142. In this embodiment, the insulating layer 142 is disposed between the first electrode layer 141, the data line D, and the second electrode layer 143, and the first electrode layer 141 and the second electrode layer 143 (and By separating the data line D), it is possible to avoid the occurrence of a short circuit between them. Among them, the insulating layer 142 is made of, for example, a material containing silicon oxide (SiOx) or silicon nitride (SiNx), but is not particularly limited, and other materials may be used.
The first electrode layer 141 and the second electrode layer 143 are transparent conductive layers, respectively. For example, indium tin oxide may be used as a material, but the present invention is not limited thereto. In this embodiment, the first electrode layer 141 is a pixel electrode and is electrically connected to the data line D, and the second electrode layer 143 is a common electrode. It is. Of course, as another embodiment, the first electrode layer 141 may be a common electrode and the second electrode layer 143 may be a pixel electrode.

The second electrode layer 143 includes n (n is a positive integer) number of electrode parts 1431 and a first connection part 1432, and the first connection part 1432 is formed around the outer peripheral edge of these electrode parts 1431. And is connected to the electrode portion 1431. In the present embodiment, as shown in FIG. 1C, the number (n) of the electrode parts 1431 is 3, and the first connection part is connected to the outer peripheral edges of the three electrode parts 1431. Among these, the electrode parts 1431 are spaced apart from each other at a predetermined interval and are arranged in parallel along the first direction X.
Each electrode portion 1431 of the second electrode layer 143 has an electrode width W in the first direction X, and preferably satisfies, for example, 1 μm ≦ W ≦ 5 μm, and satisfies 1.5 μm ≦ W ≦ 3.5 μm. It is more preferable to satisfy.

  As shown in FIG. 1B, the display panel 1 further includes a black matrix BM and a filter layer (not shown). The black matrix BM is a data line on the first substrate 11 or the second substrate 12. It is arranged corresponding to D. The black matrix BM is made of, for example, a metal such as chromium, chromium oxide, chromium nitrogen oxide, or a non-translucent material such as a resin. In the present embodiment, the black matrix BM is disposed on the side of the second substrate 12 facing the first substrate 11 and is positioned above the data line D along the third direction Z. Therefore, when the display panel 1 is viewed from the upper viewpoint, the black matrix BM is positioned so as to cover the data line D.

The filter layer (not shown) is disposed on the side of the second substrate 12 and the black matrix BM that faces the first substrate 11 or is disposed on the first substrate 11. Since the black matrix BM is made of a non-translucent material, a non-translucent area can be formed on the second substrate 12, and thus the translucent area can be partitioned. For this reason, when light passes through the pixel P, a light emitting region (region where light passes through the pixel P) is formed in the pixel P. Among them, the black matrix BM has a plurality of light shielding sections, and there is at least one light shielding section between two adjacent filter layers. In the present embodiment, the black matrix BM and the filter layer are each disposed on the second substrate 12, but there is no particular limitation, and as another embodiment, the black matrix BM and the filter layer are respectively the first matrix. A BOA (BM on array) substrate or a COA (color filter on array) substrate may be formed on the substrate 11.
The display panel 1 further includes a protective layer (for example, over-coating, not shown), and the black matrix BM and the filter layer may be covered with the protective layer. As the material of the protective layer, a photoresist material, a resin material, or an inorganic material (for example, SiOx / SiNx) can be used, so that the protective layer is not destroyed under the influence of the subsequent production process. Protect the black matrix BM and the filter layer.

  When an operation signal is received by a plurality of scanning lines S of the display panel 1, thin film transistors (not shown) arranged corresponding to the scanning lines S are turned on, and data signals corresponding to pixels in each column are transmitted to the data lines. D is transmitted to the corresponding pixel electrode by D, whereby the screen of the display panel 1 is displayed. In the present embodiment, the gray scale voltage is transmitted to the first electrode layer 141 (pixel electrode) of each pixel P through each data line D, and the first electrode layer 141 and the second electrode layer 143 (common electrode). ), The liquid crystal molecules of the liquid crystal layer 13 are rotated on the plane formed by the first direction X and the second direction Y, and the light is modulated. An image is displayed on the display panel 1.

However, when an electric field is formed by the first electrode layer 141 and the second electrode layer 143 (common electrode) and the liquid crystal molecules are driven to rotate, the second electrode layer 143 has a shape as shown by a dotted line in FIG. 1B. The horizontal rotation of the liquid crystal molecules in the center region of each electrode portion 1431 and the region between two adjacent electrode portions 1431 is limited by the electric field distribution. Therefore, when light passes through the pixel P, dark stripes are generated in the central region of each electrode portion 1431 and the region between the two electrode portions 1431 so that the transmittance of the display panel 1 is lowered. It has become.
Therefore, if the area of the dark stripe is reduced, the transmittance of the display panel 1 can be improved, and with the improvement of the transmittance, the purpose of power saving can be realized and the product competitiveness can be enhanced. .

Next, how to improve the transmittance of the display panel 1 by minimizing the dark stripe area will be described with reference to FIGS. 2A to 2D.
FIG. 2A shows a relative position between the second electrode layer 143 of the pixel P and the generated dark stripe in the display panel 1 in FIG. 1A. FIG. The relative position with respect to the second electrode layer 143 is shown, FIG. 2C shows a curve of the luminance distribution along the first direction X of the pixel P in FIG. 2A, and FIG. An image of the pixel P of the display panel 1 is shown.
Here, as shown in FIG. 2D, when light passes through the pixel P, a light emitting region is formed in the pixel P, and the maximum width in the first direction X of the light emitting region is Ax (for example, 10 μm ≦ Ax ≦ 250 μm). The maximum width of the light emitting region in the second direction Y is Ay (usually Ay≈3Ax by design), and the total area of the light emitting region is a product of Ax and Ay. The dotted line in FIG. 2A indicates a dark stripe generated when light passes through the pixel P, and the dark stripe includes a linear dark stripe D1 and a triangular dark stripe D2. In the luminance curve in FIG. 2B, the valley portion corresponds to the dark stripe portion. As shown in FIG. 2C, in the present embodiment, the maximum width Ax in the first direction X of the light emitting region is the full width at half maximum in the luminance distribution curve along the first direction X of the pixel P (Full Width at Half Maximum, FWHM; that is, the width at which half the luminance is taken in the luminance distribution curve).

  In the dark stripe generated when light passes through the pixel P, as shown in FIG. 2A, since there are n electrode portions 1431 of the second electrode layer 143 (n = 3 in this embodiment), a straight line The number of dark stripes D1 is 2n + 1 (2 × 3 + 1 = 7 in the present embodiment). Further, in actual design, each of the connection portions between the both sides of the electrode portion 1431 of the second electrode layer 143 and the first connection portion 1432 (that is, the upper and lower edge areas in the second direction Y of the pixel P) is respectively A bent portion is formed, and a triangular dark stripe D2 is also generated between the bent portion, between the two bent portions, and between the bent portion and the first connection portion 1432, and the number of dark stripes D2 is 2 ×. (2n + 1) (2 × 7 = 14 in this embodiment). As can be seen from FIG. 2A, when the total area of the linear dark stripe D1 and the triangular dark stripe D2 with respect to the total area of the light emitting region is minimized, the transmittance of the pixel P is maximized. it can.

  Further, referring to FIG. 2B, the leftmost electrode portion 1431 in FIG. 2B will be described as an example. The energy of all the luminance of the electrode portion 1431 (integration in the luminance distribution curve when there is no dark stripe) is a solid line. The portion of the luminance loss due to dark stripes (integration of the concave portion in the luminance distribution curve) corresponds to the triangular area Z2 indicated by the solid line. Among them, the area Z2 of the triangle indicating the luminance loss can be made to correspond to the rectangular area Z3 having the same height as the rectangular area Z1 (that is, the area of Z2 corresponds to the area of Z3). The ratio of the area Z2 (that is, luminance loss) to the energy of all the luminance of the electrode portion 1431 (when there is no dark stripe) is expressed as “width of Z3 (width of dark stripe)” and “width of Z1 (electrode portion 1431). ) ”) Ratio (indicated by“ R ”). The ratio R after calculation by the actually measured dark stripe is about 0.1 (R≈0.1, ie, the width of the area Z3 is 0.1 times the width of the area Z1). Of course, as another embodiment, R can be set to 0.05 to 2 (0.05 ≦ R ≦ 2).

Therefore, the region T through which the light of the pixel P can transmit is obtained by subtracting the area of the dark stripe portion (including the areas of the triangular dark stripe D2 and the linear dark stripe D1) from the area of the light emitting region (or The area after the subtraction is shown as a calculation formula as follows.
Of these, the above formula is differentiated to obtain the maximum value.
Therefore, the following calculation formula can be obtained.
Here, the maximum value is obtained when T ′ = 0, and the calculation formula is as follows.
Then, when Ay≈3Ax is substituted into the calculation formula, the following calculation formula is obtained.
Then, when R≈0.1 is substituted into the calculation formula, the following calculation formula is obtained.

Therefore, in this embodiment, the optimum n (n is a positive integer) is as follows.
In this case, since the ratio of the dark stripe area to the area of the light emitting region of the pixel P can be minimized and the transmittance of the image P element can be maximized, the display panel 1 having a high transmittance is provided. , Can increase the competitiveness of the product.

  Next, another embodiment of the present invention will be described with reference to FIGS. 1A, 1B, 1C, and 1D. 3A is a schematic view showing a cross section of a display panel 1a according to another preferred embodiment of the present invention, and FIG. 3B is a schematic view showing a second electrode layer 143a in the display panel 1a in FIG. 3A. FIG. 3C is a schematic diagram showing an arrangement of one pixel Pb in the display panel 1b according to another preferred embodiment of the present invention. FIG. 3D is a schematic diagram showing an arrangement of one pixel Pc in a display panel 1c according to still another preferred embodiment of the present invention.

  As a main difference between the display panel 1a as shown in FIG. 3A and the display panel 1 as shown in FIG. 1B, in the display panel 1a, the first electrode layer 141 is a common electrode, and the second electrode layer Reference numeral 143a denotes a pixel electrode. As shown in FIG. 3B, the second electrode layer 143a has three electrode portions 1431 and a second connection portion 1433, and the second connection portion 1433 has opposite sides of these electrode portions 1431. And connected to these electrode portions 1431. Referring to FIG. 3A again, the data line D is disposed on the first substrate 11, and the pixel Pa further includes another insulating layer 145, and the insulating layer 145 includes the data line D. The first electrode layer 141 is disposed so as to be covered so as to be sandwiched between the insulating layer 142 and the insulating layer 145.

  3C, the main difference between the display panel 1b and the display panel 1 shown in FIG. 1A is that, in the display panel 1b, the second direction Y is substantially parallel to the extending direction of the data lines. However, the first direction X and the second direction Y are not perpendicular to each other, and an obtuse angle is formed between the first direction X and the second direction Y so that the pixels Pb are substantially parallelograms. . In other words, in the display panel 1b according to the present embodiment, the plurality of scanning lines S and the plurality of data lines D are arranged so as to intersect with each other, but are not perpendicular to each other, but the pixel Pb, the first electrode layer 141b, and the first line. An obtuse angle is formed so that the second electrode layer 143b is substantially a parallelogram.

  Further, as shown in FIG. 3D, the main difference between the display panel 1c and the display panel 1 shown in FIG. 1A is that the data line D of the pixel Pc has a bent portion in the display panel 1c. Is not a parallelogram, and a bent portion corresponding to the bent portion of the data line D is also formed in the pixel Pc. The electrode portion 1431 and the first connection portion 1432 of the second electrode layer 143 each have a bent portion corresponding to the pixel Pc, and the first electrode portion 141c also has a corresponding bent portion. .

  Since the other configurations of the display panel 1a, the display panel 1b, and the display panel 1c are the same as the corresponding configurations of the display panel 1, the description thereof is omitted.

  Next, FIG. 4 is a schematic view showing a display device 2 according to a preferred embodiment of the present invention.

The display device 2 includes a display panel 3 and a backlight module 4, and the display panel 3 and the backlight module 4 are disposed to face each other. Among them, as the display panel 3, any one of the display panels 1, 1a, 1b, and 1c can be selected, and the description thereof is omitted.
When the light beam E emitted from the backlight module 4 passes through the display panel 3, a color is displayed by each pixel of the display panel 3 to form an image.

As described above, in the display panel and the display device according to the present invention, the pixel array of the display panel has at least one pixel, and the insulating layer of the pixel is disposed between the first electrode layer and the second electrode layer. ing. The second electrode layer has n electrode portions, and these electrode portions are arranged in parallel along the first direction at a predetermined distance from each other. Further, when the electrode width in the first direction of each electrode portion is W and the maximum width in the first direction of the light emitting region of the pixel is Ax, the following formula (where n is a positive integer) is satisfied. ing.
As described above, the number of electrodes of the second electrode layer, the width of the electrodes, and the maximum width Ax in the first direction of the light emitting region of the pixel satisfy the above formula, so that dark stripes occupy the area of the light emitting region of the pixel. The area ratio of the pixel can be minimized, and the transmittance of the pixel can be maximized. For this reason, the display panel and the display device according to the present invention have high transmittance and can increase the competitiveness of the product.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention.

1, 1a, 1b, 1c, 3 Display panel 11 First substrate 12 Second substrate 13 Liquid crystal layer 141, 141b, 141c First electrode 142, 145 Insulating layer 143, 143a, 143b, 143c Second electrode 1431 Electrode portion 1432 First connection portion 1433 Second connection portion 2 Display device 4 Backlight module AA Line Ax, Ay Maximum width BM Black matrix D Data line
D1 Linear dark stripe D2 Triangular dark stripe E Ray P, Pa, Pb, Pc Pixel S Scan line W Electrode width X First direction Y Second direction Z Third direction Z1, Z2, Z3 Area

Claims (10)

A first substrate;
A second substrate disposed opposite the first substrate;
A liquid crystal layer disposed between the first substrate and the second substrate;
A pixel array disposed on the first substrate and having at least one pixel;
The pixel includes a first electrode layer, an insulating layer, and a second electrode layer,
The insulating layer is disposed between the first electrode layer and the second electrode layer;
The second electrode layer has n electrode portions, and these electrode portions are arranged in parallel along the first direction at a predetermined distance from each other, and the electrode width in the first direction of each electrode portion. Is W,
When the pixel has a light emitting area and the maximum width in the first direction of the light emitting area is Ax, the following equation is satisfied:
However, n is a positive integer, and the unit of W and Ax is a micrometer. When light passes through the pixel, the pixel has a luminance distribution formed along the first direction;
The display panel according to claim 1, wherein the maximum width of the light emitting region in the first direction is a full width at half maximum of the luminance distribution. The pixel further includes a scan line;
The display panel according to claim 1, wherein an extending direction of the scanning line is substantially parallel to the first direction. The second electrode layer further includes a first connection portion,
The display panel according to claim 1, wherein the first connection portion is provided around the outer peripheral edge of the electrode portion and connected to the electrode portion. The second electrode layer further includes a second connection portion,
The display panel according to claim 1, wherein the second connection portion is disposed on both sides of the electrode portion facing each other and connected to the electrode portion. A display device including a display panel,
The display panel includes a first substrate, a second substrate, a liquid crystal layer, and a pixel array.
The first substrate and the second substrate are installed facing each other,
The liquid crystal layer is disposed between the first substrate and the second substrate;
The pixel array is disposed on the first substrate and includes at least one pixel;
The pixel includes a first electrode layer, an insulating layer, and a second electrode layer,
The insulating layer is disposed between the first electrode layer and the second electrode layer;
The second electrode layer has n electrode portions, and these electrode portions are arranged in parallel along the first direction at a predetermined distance from each other, and the electrode width in the first direction of each electrode portion. Is W,
When the pixel has a light emitting area and the maximum width in the first direction of the light emitting area is Ax, the following equation is satisfied:
However, n is a positive integer, and the unit of W and Ax is a micrometer. When light passes through the pixel, the pixel has a luminance distribution formed along the first direction;
The display device according to claim 6, wherein the maximum width of the light emitting region in the first direction is a full width at half maximum of the luminance distribution. The pixel further includes a scan line;
The display device according to claim 6, wherein an extending direction of the scanning line is substantially parallel to the first direction. The second electrode layer further includes a first connection portion,
The display device according to claim 6, wherein the first connection portion is provided around the outer peripheral edge of the electrode portion and connected to the electrode portion. The second electrode layer further includes a second connection portion,
The display device according to claim 6, wherein the second connection portion is disposed on both sides of the electrode portion facing each other and connected to the electrode portion.