WO2021031318A1

WO2021031318A1 - Transparent display panel

Info

Publication number: WO2021031318A1
Application number: PCT/CN2019/111541
Authority: WO
Inventors: 肖翔; 韩佰祥
Original assignee: 深圳市华星光电半导体显示技术有限公司
Priority date: 2019-08-20
Filing date: 2019-10-16
Publication date: 2021-02-25
Also published as: CN110610962B; CN110610962A

Abstract

Disclosed is a transparent display panel (100, 200), comprising a plurality of pixel units (110, 120, 130, 140, 210, 220, 230, 240) arranged in an array, with each of the pixel units (110, 120, 130, 140, 210, 220, 230, 240) comprising a light emission sub-region (112, 212) and an external light transmission sub-region (111, 211), wherein the light emission sub-region (112, 212) comprises a plurality of sub-pixel opening portions (114, 115, 116, 214, 215, 216) arranged at intervals, and the sub-pixel opening portions (114, 115, 116, 214, 215, 216) of the same color in adjacent pixel units (110, 120, 130, 140, 210, 220, 230, 240) are connected to each other, thereby increasing the area of the sub-pixel opening portions (114, 115, 116, 214, 215, 216) in the transparent display panel (100, 200), and reducing the difficulty of configuring the light emission color of the sub-pixel opening portions (114, 115, 116, 214, 215, 216) during an ink jet printing process.

Description

Transparent display panel

Technical field

The present invention relates to the field of display technology, and in particular to a transparent display panel.

Background technique

Compared with traditional liquid crystal display (Liquid Crystal Display, LCD), Organic Light-Emitting Diode (OLED) has the advantages of self-luminescence, fast response, wide viewing angle, high brightness, bright color, light and thin. A generation of display technology.

technical problem

In a transparent OLED display panel, a single pixel is divided into an opaque part and a light-transmitting part. In order to obtain a higher transmittance, the area of the light-transmitting area should be larger, and the opening area of the sub-pixel should be smaller. If inkjet printing (Ink Jet Printing) method to make transparent OLED display panels, although the solution can be accurately sprayed into the pixel area to form an organic film, but due to the small opening area of the sub-pixels, it is difficult to form an organic film with a uniform thickness in the pixel area. The red, green, and blue sub-pixels have the same opening area, but the three-color sub-pixels have different material efficiencies and the difference in the lifespan of the sub-pixels, resulting in a shorter service life of the transparent OLED display panel.

In summary, the existing transparent display panel manufacturing process has the problems that the inkjet printing process is difficult and the display panel has a short service life. Therefore, it is necessary to provide a transparent display panel to improve this defect.

Technical solutions

The present disclosure provides a transparent display panel, which is used to solve the problems of greater difficulty in the inkjet printing process and short service life of the display panel in the manufacturing process of the existing transparent display panel.

The embodiments of the present disclosure provide a transparent display panel including a plurality of pixel units arranged in an array, each of the pixel units includes a light emitting sub-region and an external light transmitting sub-region;

Wherein, the light-emitting sub-region includes a plurality of sub-pixel opening portions arranged at intervals, and the sub-pixel opening portions of the same color in adjacent pixel units are connected to each other.

According to an embodiment of the present disclosure, the plurality of sub-pixel openings located in the same pixel unit are configured to have different light-emitting colors, and the sub-pixel openings located in the same column of different pixel units are configured to be the same Glowing colors.

According to an embodiment of the present disclosure, the sub-pixel opening portion includes a first sub-pixel opening portion, a second sub-pixel opening portion, and a third sub-pixel opening portion, and the area of the first sub-pixel opening portion is less than or equal to the The area of the second sub-pixel opening portion is smaller than the area of the third sub-pixel opening portion.

According to an embodiment of the present disclosure, the first sub-pixel opening portion and the second sub-pixel opening portion are respectively configured to be any one of red and green, and the third sub-pixel opening portion is configured to be blue.

According to an embodiment of the present disclosure, the pixel unit is a rectangular pixel unit, and the light-emitting sub-region and the external light-transmitting sub-region are respectively arranged in two polygonal regions divided into the rectangle by a straight line passing through the center of the rectangle.

According to an embodiment of the present disclosure, the pixel unit is a rectangular pixel unit, and the light-emitting sub-region and the external light transmission sub-region are respectively disposed in two triangular regions formed by a diagonal line of the rectangle.

According to an embodiment of the present disclosure, a plurality of adjacent pixel units form a pixel cluster, and the boundaries of the light-emitting subregions located in the pixel cluster overlap with each other.

According to an embodiment of the present disclosure, the pixel cluster includes a first pixel unit, a second pixel unit, a third pixel unit, and a fourth pixel unit, wherein the first pixel unit and the second pixel unit are opposite to each other. The intersection line of the first pixel unit and the fourth pixel unit is an axisymmetric structure relative to the intersection line of the two, and the first pixel unit and the third pixel unit are relative to the The center of the pixel cluster has a centrosymmetric structure.

According to an embodiment of the present disclosure, the minimum distances between adjacent sub-pixel openings located in the same pixel unit are equal.

According to an embodiment of the present disclosure, the light-emitting sub-region further includes a pixel circuit portion, and the pixel circuit portion is disposed in another area of the light-emitting sub-region except the sub-pixel opening portion.

The present disclosure provides a transparent display panel including a plurality of pixel units arranged in an array, each of the pixel units includes a light-emitting sub-region and an external light transmission sub-region;

Wherein, the light-emitting sub-region includes a plurality of sub-pixel openings arranged at intervals, and the sub-pixel openings of the same color in adjacent pixel units are connected to each other, and the plurality of sub-pixels located in the same pixel unit The area of the pixel opening varies.

According to an embodiment of the present disclosure, the sub-pixel opening portion includes a first sub-pixel opening portion, a second sub-pixel opening portion, and a third sub-pixel opening portion, and the area of the first sub-pixel opening portion is smaller than that of the second sub-pixel opening portion. The area of the sub-pixel opening portion is smaller than the area of the third sub-pixel opening portion.

Wherein, the light-emitting sub-region includes a plurality of sub-pixel openings arranged at intervals, and the sub-pixel openings of the same color in adjacent pixel units are connected to each other, and the plurality of sub-pixels located in the same pixel unit The openings are configured in different light-emitting colors, and the areas of the openings of the plurality of sub-pixels located in the same pixel unit are different.

Beneficial effect

Advantageous effects of the present disclosure: The embodiments of the present disclosure provide a transparent display panel, by providing a light-emitting sub-region and an external light transmission sub-region in a pixel unit, the light-emitting sub-region includes a plurality of sub-pixel openings arranged at intervals, and The openings of the sub-pixels of the same color in adjacent pixel units are connected to each other, thereby increasing the area of the openings of the sub-pixels in the transparent display panel, and reducing the difficulty of configuring the light-emitting color of the openings of the sub-pixels in the inkjet printing process , While keeping the area of the external light transmission sub-region unchanged, the technical effect of the transparent display of the transparent display panel is realized.

Description of the drawings

In order to explain the embodiments or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only for disclosure For some embodiments, those of ordinary skill in the art can obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic structural diagram of a transparent display panel provided by the first embodiment of the disclosure;

2 is a schematic diagram of another structure of the transparent display panel provided by the first embodiment of the disclosure;

3 is a schematic diagram of the structure of the transparent display panel provided in the second embodiment of the disclosure.

Embodiments of the invention

The description of the following embodiments refers to the attached drawings to illustrate specific embodiments that can be implemented in this application. The directional terms mentioned in this application, such as [Up], [Down], [Front], [Back], [Left], [Right], [Inner], [Outer], [Side], etc., are for reference only The direction of the additional schema. Therefore, the directional terms used are used to illustrate and understand the application, rather than to limit the application. In the figure, units with similar structures are indicated by the same reference numerals.

The disclosure will be further described below in conjunction with the drawings and specific embodiments:

Example one:

The embodiments of the present disclosure provide a transparent display panel, which will be described in detail below with reference to FIGS. 1 and 2.

As shown in FIG. 1, FIG. 1 is a schematic structural diagram of a transparent display panel 100 provided by an embodiment of the disclosure. The transparent display panel 100 includes a plurality of pixel units arranged in an array, and each of the pixel units includes a light-emitting sub-region 112. And an external light transmission sub-region 111, the light-emitting sub-region 112 is used for normal display light emission, and the external light transmission sub-region 111 is used to provide a path for external light to penetrate when the transparent display panel 100 is not performing a display function, Thus, the transparent display effect of the transparent display panel 100 is realized.

The light-emitting sub-region 112 includes a plurality of sub-pixel openings arranged at intervals, and the sub-pixel openings of the same color in adjacent pixel units are connected to each other, and the sub-pixel openings are used for printing through an inkjet printing process. The sub-pixels are configured with different light-emitting colors. While maintaining the accuracy of the inkjet printing process, the openings of the sub-pixels are connected to each other to increase the area of the openings of the sub-pixels and the light-emitting sub-regions. Pixels, thereby reducing the difficulty of the inkjet printing process.

In this embodiment, multiple sub-pixel openings located in the same pixel unit are configured to have different light-emitting colors, and the sub-pixel openings located in the same column of different pixel units are configured to have the same light-emitting color.

In this embodiment, as shown in FIG. 1, the sub-pixel opening portion in the same pixel unit includes a first sub-pixel opening portion 114, a second sub-pixel opening portion 115, and a third sub-pixel opening portion 116, wherein, The area of the first sub-pixel opening portion 114 is smaller than or equal to the area of the second sub-pixel opening portion 115, and the area of the second sub-pixel opening portion 115 is smaller than the area of the third sub-pixel opening portion 116.

Preferably, the first sub-pixel opening portion 114 and the second sub-pixel opening portion 115 are respectively configured to be any one of red and green, and the third sub-pixel opening portion 116 is configured to be blue. Due to the poor luminous efficiency and luminous life of the blue light-emitting material, the life of the panel will be poor. By increasing the area of the blue sub-pixel opening, the content of the blue light-emitting material is increased, thereby improving the use of the transparent display panel 100 life.

As shown in FIG. 1, the pixel units are all rectangular pixel units, and the light-emitting sub-region 111 and the external light transmission sub-region 112 are respectively arranged in two polygonal regions divided into the rectangle by a straight line passing through the center of the rectangle. . Because the straight line passes through the center of the rectangle, the light-emitting sub-region 111 and the external light-transmitting sub-region 112 are divided into two parts of equal area, which not only ensures that the light-emitting sub-region 111 can function as a display normally, but also achieves transparency. The transparent display effect of the display panel 100. In this embodiment, the straight line passes through the midpoints of the two sides of the rectangle and the center point of the rectangle, and divides the rectangular pixel unit into two equal rectangular regions up and down. In other embodiments, it can also be formed as shown in FIG. 2 2 is a schematic diagram of another structure of a display panel provided by an embodiment of the disclosure. Two trapezoidal regions are equal up and down, and the areas of the self-luminous region 111 and the external light transmission sub-region 112 are still equal and can satisfy The area of the third sub-pixel opening portion 116 is larger than the areas of the first sub-pixel opening portion 114 and the second sub-pixel opening portion.

Preferably, a plurality of adjacent pixel units form a pixel cluster, and the boundaries of the light-emitting sub-regions located in the pixel cluster overlap with each other. As shown in FIG. 1, the pixel cluster includes a first pixel unit 110, a second pixel unit 120, a third pixel unit 130, and a fourth pixel unit 140. The boundaries of the light-emitting sub-regions 112 of the four pixel units overlap each other. The sub-pixel units with the same color in the light-emitting sub-region 112 are connected to each other. The first pixel unit 110 and the second pixel unit 120 have an axisymmetric structure relative to the intersection line of the two, and the first pixel unit 110 and the fourth pixel unit 140 have an axisymmetric structure relative to the intersection line of the two. In an axisymmetric structure, the first pixel unit 110 and the third pixel unit 130 have a center symmetric structure with respect to the center of the pixel cluster. Of course, in other embodiments, the number of pixel units in the pixel cluster is not limited to four, and may be less than four or more than four.

Preferably, the minimum distance between the adjacent sub-pixel opening portions located in the same pixel unit is equal, that is, the minimum distance between the first sub-pixel opening portion 114 and the second sub-pixel opening portion 115 is the same. The distance is equal to the minimum distance between the second sub-pixel opening portion 115 and the third sub-pixel opening portion 116.

In this embodiment, the light-emitting sub-region 112 further includes a pixel circuit portion 113, and the pixel circuit portion 113 is disposed in other regions of the light-emitting sub-region 112 except for the sub-pixel opening portion.

The embodiment of the present disclosure provides a transparent display panel 100. A light-emitting sub-region 112 and an external light transmission sub-region 111 are provided in a pixel unit. The light-emitting sub-region 112 includes a plurality of sub-pixel openings arranged at intervals and adjacent to each other. The sub-pixel openings of the same color in the pixel unit are connected to each other, thereby increasing the area of the sub-pixel opening in the transparent display panel, reducing the difficulty of the inkjet printing process, while keeping the area of the external light transmission sub-region unchanged , It is convenient for the external light to pass through the external light transmission sub-region, and the technical effect of transparent display of the transparent display panel is realized.

Embodiment two:

As shown in FIG. 3, FIG. 3 is a schematic structural diagram of a transparent display panel 200 provided by an embodiment of the disclosure. The transparent display panel 200 includes a plurality of pixel units arranged in an array, and the pixel units all include light-emitting sub-regions 212. And an external light transmission sub-region 211, the light-emitting sub-region 212 is used for normal display light emission, and the external light transmission sub-region 211 is used to provide a path for external light to penetrate when the transparent display panel 200 is not performing a display function, Thus, the transparent display effect of the transparent display panel 200 is realized.

The light-emitting sub-region 212 includes a plurality of sub-pixel openings arranged at intervals, and the sub-pixel openings of the same color in adjacent pixel units are connected to each other, and the sub-pixel openings are used for printing through an inkjet printing process. The sub-pixels are configured with different light-emitting colors. While maintaining the accuracy of the inkjet printing process, the sub-pixel openings are connected to each other to increase the area of the sub-pixel openings and the light-emitting sub-region 212, thereby reducing the inkjet printing process The difficulty.

In this embodiment, as shown in FIG. 3, the sub-pixel opening portion in the same pixel unit includes a first sub-pixel opening portion 214, a second sub-pixel opening portion 215, and a third sub-pixel opening portion 216, wherein, The area of the first sub-pixel opening portion 214 is smaller than or equal to the area of the second sub-pixel opening portion 215, and the area of the second sub-pixel opening portion 215 is smaller than the area of the third sub-pixel opening portion 216.

Preferably, the first sub-pixel opening portion 214 and the second sub-pixel opening portion 215 are respectively configured to be any one of red and green, and the third sub-pixel opening portion 216 is configured to be blue. Due to the poor luminous efficiency and luminous life of the blue light-emitting material, the life of the panel will be poor. By increasing the area of the blue sub-pixel opening, the content of the blue light-emitting material is increased, thereby improving the use of the transparent display panel 200 life.

In this embodiment, as shown in FIG. 3, the pixel unit is a rectangular pixel unit, and the light-emitting sub-region 212 and the external light transmission sub-region 211 are respectively arranged in two rectangles formed by a diagonal line. In the triangular area, the area of the light-emitting sub-region 212 and the external light-transmitting sub-region 211 are the same, which not only ensures that the light-emitting sub-region 211 can perform the display function normally, but also realizes the transparent display effect of the transparent display panel 200.

Preferably, a plurality of adjacent pixel units form a pixel cluster, and the boundaries of the light-emitting sub-regions located in the pixel cluster overlap with each other. As shown in FIG. 3, the pixel cluster includes a first pixel unit 210, a second pixel unit 220, a third pixel unit 230, and a fourth pixel unit 240. The boundaries of the light-emitting sub-regions 212 of the four pixel units overlap each other. A diamond or a square is formed, and the sub-pixel units of the same color in the light-emitting sub-region 212 are connected to each other. The first pixel unit 210 and the second pixel unit 220 have an axisymmetric structure relative to the intersection line of the two, and the first pixel unit 210 and the fourth pixel unit 240 have an axisymmetric structure relative to the intersection line of the two. In an axisymmetric structure, the first pixel unit 210 and the third pixel unit 230 have a center symmetric structure with respect to the center of the pixel cluster.

The embodiment of the present disclosure provides a transparent display panel 200. A light-emitting sub-region 212 and an external light-transmitting sub-region 211 are provided in a pixel unit. The light-emitting sub-region 212 includes a plurality of sub-pixel openings arranged at intervals and adjacent to each other. The sub-pixel openings of the same color in the pixel unit are connected to each other, thereby increasing the area of the sub-pixel opening in the transparent display panel, reducing the difficulty of the inkjet printing process, while keeping the area of the external light transmission sub-region unchanged , It is convenient for the external light to pass through the external light transmission sub-region, and the technical effect of transparent display of the transparent display panel is realized.

In this embodiment, the light-emitting sub-region 212 further includes a pixel circuit portion 216, and the pixel circuit portion 216 is disposed in other regions of the light-emitting sub-region 212 except for the sub-pixel opening portion.

In summary, although the present disclosure is disclosed as above in preferred embodiments, the above preferred embodiments are not intended to limit the present disclosure. Those of ordinary skill in the art can make various modifications without departing from the spirit and scope of the present disclosure. Modifications and modifications, therefore, the protection scope of this disclosure is based on the scope defined by the claims.

Claims

A transparent display panel includes a plurality of pixel units arranged in an array, each of the pixel units includes a light-emitting sub-region and an external light transmission sub-region;

Wherein, the light-emitting sub-region includes a plurality of sub-pixel opening portions arranged at intervals, and the sub-pixel opening portions of the same color in adjacent pixel units are connected to each other.
The transparent display panel of claim 1, wherein the plurality of sub-pixel openings located in the same pixel unit are configured to have different light-emitting colors, and the sub-pixels located in the same column of different pixel units The pixel openings are arranged in the same light emission color.
The transparent display panel of claim 1, wherein the sub-pixel opening portion includes a first sub-pixel opening portion, a second sub-pixel opening portion, and a third sub-pixel opening portion, and the first sub-pixel opening portion is The area is smaller than or equal to the area of the second sub-pixel opening, and the area of the second sub-pixel opening is smaller than the area of the third sub-pixel opening.
3. The transparent display panel of claim 3, wherein the first sub-pixel opening portion and the second sub-pixel opening portion are configured to be either red or green, respectively, and the third sub-pixel opening portion The configuration is blue.
The transparent display panel according to claim 1, wherein the pixel unit is a rectangular pixel unit, and the light-emitting sub-region and the external light transmission sub-region are respectively arranged on a straight line passing through the center of the rectangle to divide the rectangle into two Polygonal area.
8. The transparent display panel of claim 1, wherein the pixel unit is a rectangular pixel unit, and the light-emitting sub-region and the external light transmission sub-region are respectively disposed in two triangles formed by a diagonal line of the rectangle Area.
8. The transparent display panel of claim 1, wherein a plurality of adjacent pixel units form a pixel cluster, and the boundaries of the light-emitting sub-regions located in the pixel cluster overlap with each other.
7. The transparent display panel of claim 7, wherein the pixel cluster includes a first pixel unit, a second pixel unit, a third pixel unit, and a fourth pixel unit, wherein the first pixel unit and the second pixel unit The two pixel units have an axisymmetric structure with respect to the intersection line of the two, the first pixel unit and the fourth pixel unit have an axisymmetric structure with respect to the intersection line of the two, and the first pixel unit and the second pixel unit have an axisymmetric structure. The three-pixel unit has a center-symmetric structure with respect to the center of the pixel cluster.
8. The transparent display panel of claim 1, wherein the minimum distances between adjacent sub-pixel openings located in the same pixel unit are equal.
3. The transparent display panel of claim 1, wherein the light-emitting sub-region further comprises a pixel circuit part, and the pixel circuit part is disposed in another area of the light-emitting sub-region except for the sub-pixel opening.
A transparent display panel includes a plurality of pixel units arranged in an array, each of the pixel units includes a light-emitting sub-region and an external light transmission sub-region;

Wherein, the light-emitting sub-region includes a plurality of sub-pixel openings arranged at intervals, and the sub-pixel openings of the same color in adjacent pixel units are connected to each other, and the plurality of sub-pixels located in the same pixel unit The area of the pixel opening varies.
11. The transparent display panel of claim 11, wherein the sub-pixel opening portion includes a first sub-pixel opening portion, a second sub-pixel opening portion, and a third sub-pixel opening portion, and the first sub-pixel opening portion is The area is smaller than the area of the second sub-pixel opening portion, and the area of the second sub-pixel opening portion is smaller than the area of the third sub-pixel opening portion.
The transparent display panel of claim 12, wherein the first sub-pixel opening portion and the second sub-pixel opening portion are respectively configured to be any one of red and green, and the third sub-pixel opening portion The configuration is blue.
The transparent display panel of claim 11, wherein the pixel unit is a rectangular pixel unit, and the light-emitting sub-region and the external light-transmitting sub-region are respectively arranged on a straight line passing through the center of the rectangle to divide the rectangle into two Polygonal area.
11. The transparent display panel of claim 11, wherein the pixel unit is a rectangular pixel unit, and the light-emitting sub-region and the external light transmission sub-region are respectively disposed in two triangles formed by a diagonal line of the rectangle. Area.
11. The transparent display panel of claim 11, wherein a plurality of adjacent pixel units form a pixel cluster, and the boundaries of the light-emitting sub-regions in the pixel cluster overlap with each other.
The transparent display panel of claim 16, wherein the pixel cluster includes a first pixel unit, a second pixel unit, a third pixel unit, and a fourth pixel unit, wherein the first pixel unit and the first pixel unit The two pixel units have an axisymmetric structure with respect to the intersection line of the two, the first pixel unit and the fourth pixel unit have an axisymmetric structure with respect to the intersection line of the two, and the first pixel unit and the second pixel unit have an axisymmetric structure. The three-pixel unit has a center-symmetric structure with respect to the center of the pixel cluster.
11. The transparent display panel of claim 11, wherein the minimum distances between adjacent sub-pixel openings in the same pixel unit are equal.
11. The transparent display panel according to claim 11, wherein the light-emitting sub-region further comprises a pixel circuit part, and the pixel circuit part is disposed in another area of the light-emitting sub-region except for the sub-pixel opening.
A transparent display panel includes a plurality of pixel units arranged in an array, each of the pixel units includes a light-emitting sub-region and an external light transmission sub-region;

Wherein, the light-emitting sub-region includes a plurality of sub-pixel openings arranged at intervals, and the sub-pixel openings of the same color in adjacent pixel units are connected to each other, and the plurality of sub-pixels located in the same pixel unit The openings are configured in different light-emitting colors, and the areas of the openings of the plurality of sub-pixels located in the same pixel unit are different.