TWI696870B - Display device - Google Patents

Abstract

A display device including a first substrate, a pixel structure, a second substrate and a filter pattern layer is provided. The pixel structure is disposed on the first substrate and includes an active element, a first electrode, a bank layer and an emissive layer. The first electrode is electrically connected to the active element. The bank layer is disposed on the first electrode and surrounds an edge of the first electrode. A side wall of the bank layer which contacts the edge of the first electrode encloses a pixel opening area. The emissive layer is disposed on the first electrode and surrounded by the bank layer. The second substrate is disposed opposite to the first substrate. The filter pattern layer is disposed on the second substrate and has a first filter portion, a second filter portion and a third filter portion. The second filter portion is located between the first filter portion and the third filter portion. The light transmittance of the first filter portion is different from that of the second filter portion and the third filter portion. The normal projection of the first filter portion and the second filter portion on the first substrate is located within the pixel opening area. The normal projection of the third filter portion on the first substrate is located between the neighboring pixel opening areas. The distance between the normal projection of the first filter portion and that of the third filter portion on the first substrate is not equal to zero.

Description

Display device

The invention relates to a display device.

In the process of an organic light emitting diode (ORGANIC LIGHT EMITTING DIODE; OLED) display device, an inkjet printing process (Ink Jet Printing; IJP) may be used to form a light emitting layer. The inkjet printing process sprays or injects droplets containing organic light-emitting materials into the openings defined by banks to form a light-emitting layer. However, after the droplets are injected into the opening, there will be a force (such as capillary phenomenon) between the bank and the bank, resulting in uneven film thickness of the light-emitting layer formed after the organic light-emitting material is dried in the opening, resulting in poor light-emitting effect Problems, which in turn affect the display quality of the display panel. For example, the film thickness of the light-emitting layer at the edge of the opening (ie, where it contacts the bank) is often significantly greater than the film thickness of the light-emitting layer at the center of the opening.

The invention provides a display device with good performance.

A display device of the present invention includes a first substrate, a pixel structure, a second substrate, and a filter pattern layer. The pixel structure is disposed on the first substrate. The pixel structure includes an active element, a first electrode, a bank layer, and a light-emitting layer. The first electrode is electrically connected to the active element. The bank layer is disposed on the first electrode and surrounds the periphery of the first electrode. The edge of the bank layer in contact with the first electrode surrounds the pixel opening area. The light-emitting layer is disposed on the first electrode and is surrounded by the bank layer. The second substrate is opposite to the first substrate. The filter pattern layer is disposed on the second substrate and has a first filter portion, a second filter portion, and a third filter portion. The second filter portion is located between the first filter portion and the third filter portion. The light transmittance of the first filter part is different from the light transmittance of the second filter part and the third filter part. The vertical projection of the first filter portion and the second filter portion on the first substrate is within the pixel opening area. The vertical projection of the third filter portion on the first substrate is between adjacent pixel opening areas. The distance between the vertical projection of the first filter portion and the third filter portion on the first substrate is not zero.

Based on the above, a display device according to an embodiment of the present invention includes a first substrate, a pixel structure, a second substrate, and a filter pattern layer, wherein the filter pattern layer has a first filter portion, a second filter portion, and a third filter Light part, the second filter part is located between the first filter part and the third filter part, the light transmittance of the first filter part is different from that of the second filter part and the third filter part The vertical projection of the first filter portion and the second filter portion on the first substrate is within the pixel opening area, and the vertical projection of the third filter portion on the first substrate is located in the adjacent pixel opening area The distance between the vertical projection of the first filter portion and the third filter portion on the first substrate is not zero. Thereby, the problem of uneven light emission effect caused by uneven thickness of the light emitting layer can be improved.

In order to make the above-mentioned features and advantages of the present invention more obvious and understandable, the embodiments are specifically described below and described in detail in conjunction with the accompanying drawings.

Hereinafter, the present invention will be described more fully with reference to the accompanying drawings, in which exemplary embodiments of the present invention are shown. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

In the drawings, the thickness of layers, films, panels, regions, etc., are exaggerated for clarity. Throughout the specification, the same reference numerals denote the same elements. It should be understood that when an element such as a layer, film, region, or substrate is referred to as being “on” or “connected to” another element, it can be directly on or connected to the other element, or Intermediate elements may also be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present. As used herein, "connected" may refer to physical and/or electrical connections. Furthermore, "electrical connection" or "coupling" can mean that there are other components between the two components.

In addition, relative terms such as "lower" or "bottom" and "upper" or "top" may be used herein to describe the relationship between one element and another element, as shown. It should be understood that relative terms are intended to include different orientations of the device than those shown in the figures. For example, if the device in one drawing is turned over, the element described as being on the "lower" side of the other element will be oriented on the "upper" side of the other element. Thus, the exemplary term "lower" may include "lower" and "upper" orientations, depending on the particular orientation of the drawings. Similarly, if the device in one drawing is turned over, elements described as "below" or "beneath" other elements would then be oriented "above" the other elements. Thus, the exemplary terms "above" or "below" can include an orientation of above and below.

As used herein, "about", "approximately", or "substantially" includes the stated value and the average value within the acceptable deviation range of the specific value determined by those of ordinary skill in the art, taking into account the measurement and A certain amount of measurement-related errors (ie, measurement system limitations). For example, "about" may mean within one or more standard deviations of the stated value, or within ±30%, ±20%, ±10%, ±5%. Furthermore, "about", "approximately" or "substantially" used in this article can choose a more acceptable range of deviation or standard deviation according to optical properties, etching properties or other properties, and can apply all properties without a standard deviation .

Exemplary embodiments are described herein with reference to cross-sectional views that are schematic diagrams of idealized embodiments. Therefore, it is possible to anticipate a change in the shape of the graph as a result of, for example, manufacturing techniques and/or tolerances. Therefore, the embodiments described herein should not be construed as being limited to the specific shape of the area as shown herein, but include deviations in shapes caused by manufacturing, for example. For example, an area shown or described as flat may generally have rough and/or non-linear characteristics. In addition, the acute angle shown may be round. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to show the precise shapes of the regions, and are not intended to limit the scope of the claims.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this invention belongs. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted to have meanings consistent with their meanings in the context of the relevant technology and the present invention, and will not be interpreted as idealized or excessive Formal meaning unless explicitly defined in this article.

Reference will now be made in detail to exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same element symbols are used in the drawings and descriptions to denote the same or similar parts.

FIG. 1A is a schematic top view of a display device according to an embodiment of the invention. FIG. 1B is a schematic cross-sectional view of a display device according to an embodiment of the invention. In particular, the section of FIG. 1B corresponds to the section line A-A' of FIG. 1A. 1A and 1B, the display device 10 includes a first substrate 100, a pixel structure 110, a second substrate 200, and a filter pattern layer 210. In addition, the display device 10 has a plurality of areas for emitting light to present a picture, that is, a plurality of pixel opening areas 110a, wherein the pixel structure 110 is correspondingly disposed in the pixel opening areas 110a. In order to make the drawing clear, some components are omitted in FIG. 1A, and the first filter portion 210A, the second filter portion 210B, and the third filter of the plurality of pixel opening regions 110a and the filter pattern layer 210 are mainly shown部210C.

In this embodiment, the first substrate 100 is, for example, a rigid substrate. However, the present invention is not limited to this. In other embodiments, the first substrate 100 may also be a flexible substrate. For example, the material of the hard substrate can be glass, quartz or other suitable materials; the material of the flexible substrate can be plastic or other suitable materials.

Although FIG. 1B only shows one pixel structure 110 disposed on the first substrate 100, the present invention is not limited thereto. In a specific embodiment, the display device 10 may include a plurality of pixel structures 110 respectively corresponding to the plurality of pixel opening regions 110a. Each pixel structure 110 includes an active element 112, a first electrode 114, a bank layer 116, and a light-emitting layer 118. In this embodiment, the pixel structure 110 may further include the second electrode 120. In this embodiment, the active device 112 is disposed on the first substrate 100. The active device 112 includes at least one thin film transistor with a gate, a semiconductor pattern, a drain, and a source.

In this embodiment, the display device 10 may further include a flat layer 130 disposed on the active device 112. The flat layer 130 may cover part of the active device 112 and the first substrate 100. In this embodiment, the flat layer 130 may have a through hole 130a to expose a portion of the active device 112. The material of the flat layer 130 includes inorganic materials (for example: silicon oxide, silicon nitride, silicon oxynitride, other suitable materials or stacked layers of at least two of the above materials), organic materials (for example: polyester (PET), poly Olefins, polypropylenes, polycarbonates, polyalkylene oxides, polystyrenes, polyethers, polyketones, polyalcohols, polyaldehydes, other suitable materials or a combination of the above), other Suitable materials or combinations of the above.

The first electrode 114 is electrically connected to the active element 112. For example, in this embodiment, the first electrode 114 may be disposed on the flat layer 130 and electrically connected to the active device 112 through the through hole 130a, but the invention is not limited thereto. For example, the first electrode 114 in this embodiment is, for example, a pixel electrode, and is electrically connected to the drain of at least one thin film transistor of the active device 112. The material of the first electrode 114 includes a conductive oxide, such as indium tin oxide, indium zinc oxide, aluminum tin oxide, aluminum zinc oxide, indium germanium zinc oxide, other suitable oxides, or at least two of the above Of stacked layers. In some embodiments, the first electrode 114 may be formed by stacking multiple conductive layers, for example, a stack of conductive oxide layers-silver-conductive oxide layers.

The bank layer 116 is provided on the first electrode 114. In this embodiment, the bank layer 116 protrudes from the top surface 114t of the first electrode 114 in the direction z perpendicular to the first substrate 100 to form a bank-like structure. The bank layer 116 may cover and surround the periphery of the first electrode 114 and expose the surface of the central portion of the first electrode 114. The edge 116e of the side wall 116s of the bank layer 116 in contact with the first electrode 114 encloses the pixel opening region 110a. As shown in FIG. 1A, the bank layer 116 may define a plurality of pixel opening regions 110a corresponding to the pixel structures 110, respectively, so that the first electrodes 114 corresponding to the pixel structures 110 disposed in each pixel opening region 110a may not It is completely covered by the embankment layer 116. In this embodiment, the material of the bank layer 116 is, for example, photoresist, but the invention is not limited thereto.

The light emitting layer 118 is disposed on the first electrode 114 and is surrounded by the bank layer 116. For example, in this embodiment, the method of providing the light emitting layer 118 on the first electrode 114 is, for example, an inkjet printing process (Ink Jet Printing; IJP), but the invention is not limited thereto. During the inkjet printing process, since the raw material of the light-emitting layer 118 contacts the bank layer 116 in a liquid state, it has an uneven top surface based on the force between the bank layer 116 and the bank layer 116, such as capillary phenomenon. For example, in the direction z perpendicular to the first substrate 100, the top surface 118t of the light-emitting layer 118 corresponds to the point 118a (or part) in the center of the pixel opening region 110a and the top surface 114t of the first electrode 114 The distance is the first distance T1. The top surface 118t of the light-emitting layer 118 and the bank layer 116 have a boundary edge 118b. In the direction z, the distance from the boundary edge 118b to the top surface 114t of the first electrode 114 is the second distance T2. In this embodiment, the first distance T1 is less than or equal to the second distance T2. For example, the second distance T2 is less than or equal to 20 times the first distance T1, that is, T1 ≤ T2 ≤ 20´T1, but the present invention is not limited to this.

In this embodiment, the light-emitting layer 118 may include a light-emitting material layer (not shown) that can emit light by itself under electric drive. The material of the light emitting material layer is, for example, an organic light emitting material or a quantum dot light emitting material, but the present invention is not limited thereto. In addition, the light emitting layer 118 may further include a hole injection layer (not shown), a hole transport layer (not shown), or other film layers. The hole injection layer, the hole transport layer, and the luminescent material layer may be sequentially disposed on the first electrode 114, but the invention is not limited thereto. In other words, the hole injection layer, the hole transport layer and the luminescent material layer can be sequentially stacked in the pixel opening region 110a to form the luminescent layer 118. In this embodiment, the luminescent material layer, the hole injection layer and the hole transport layer can all be manufactured using the inkjet printing process described above.

In this embodiment, the second electrode 120 may be disposed on the light-emitting layer 118 and the bank layer 116. In some embodiments, an electron transport layer (not shown) and an electron injection layer (not shown) may also be included between the second electrode 120 and the light-emitting layer 118. The electron transport layer, the electron injection layer, and the second electrode 120 may be sequentially formed on the light emitting layer 118, but the present invention is not limited thereto. For example, in this embodiment, the method in which the electron transport layer, the electron injection layer, and the second electrode 120 are sequentially formed on the light-emitting layer 118 is, for example, a vapor deposition process, but the present invention is not limited thereto. For example, in this embodiment, the electron transport layer, the electron injection layer, and the second electrode 120 have substantially the same thickness, but the invention is not limited thereto.

Please refer to FIG. 1B, the second substrate 200 is disposed opposite to the first substrate 100. In this embodiment, the material of the second substrate 200 may be the same as or different from the material of the first substrate 100. The filter pattern layer 210 is disposed on the second substrate 200. 1A and 1B, the filter pattern layer 210 has a first filter portion 210A, a second filter portion 210B and a third filter portion 210C. The second filter 210B is located between the first filter 210A and the third filter 210C. The vertical projection of the first filter portion 210A and the second filter portion 210B on the first substrate 100 is located within the pixel opening area 110a as shown in FIG. 1A, and the third filter portion 210C is on the first substrate 100 The vertical projection of is located between adjacent pixel opening areas 110a. The distance d1 between the vertical projection of the first filter portion 210A and the third filter portion 210C on the first substrate 100 is not zero. In this embodiment, the distance d1 is 10 to 15 microns.

Please continue to refer to FIGS. 1A and 1B. In this embodiment, the filter pattern layer 210 includes a first filter pattern 212, a second filter pattern 214 and a third filter pattern 216. The first filter pattern 212, the second filter pattern 214, and the third filter pattern 216 are different colors, such as red, blue, and green. In this embodiment, the first filter pattern 212 may have a first portion 212a, a second portion 212b, and a third portion 212c. The first filter portion 210A includes a first portion 212a of the first filter pattern 212, the second filter portion 210B includes a second portion 212b of the first filter pattern 212, and the third filter portion 210C includes a first filter pattern The third part of 212c. In other words, the first filter portion 210A, the second filter portion 210B, and the third filter portion 210C all include the first filter pattern 212.

In this embodiment, the second filter pattern 214 is stacked on the second portion 212b and the third portion 212c of the first filter pattern 212, and the third filter pattern 216 is stacked on the third portion of the first filter pattern 212 Part 212c. As such, the second filter pattern 214 and the second portion 212b of the first filter pattern 212 together constitute the second filter portion 210B, and the second filter pattern 214, the third filter pattern 216, and the first filter pattern 212 The third portion 212c together constitute the third filter portion 210C. In this embodiment, the second filter pattern 214 and the third filter pattern 216 are sequentially stacked on the third portion 212c of the first filter pattern 212, that is, the second filter pattern 214 is stacked on the first filter Between the third portion 212c of the pattern 212 and the third filter pattern 216. By stacking the first filter pattern 212, the second filter pattern 214, and the third filter pattern 216, which are different colors, on the third filter portion 210C, a light shielding effect can be provided in the adjacent pixel opening area 110a The undesired components are shielded from time to time in place of the shading pattern, and the process of shading pattern is omitted.

In this embodiment, the first filter part 210A, the second filter part 210B, and the third filter part 210C respectively include a filter pattern, two stacked filter patterns of different colors, and three stacked Since the filter patterns of different colors are different from each other, the light transmittances of the first filter portion 210A, the second filter portion 210B, and the third filter portion 210C are different from each other. The light transmittance of the first filter part 210A is different from the light transmittance of the second filter part 210B and the third filter part 210C. For example, in this embodiment, the light transmittance of the first filter part 210A is greater than the light transmittance of the second filter part 210B and the third filter part 210C, and the light of the second filter part 210B The transmittance is greater than the light transmittance of the third filter 210C. In addition, the light transmittances of the first filter portion 210A, the second filter portion 210B, and the third filter portion 210C are different from each other. The first filter portion 210A and the second filter portion 210B on the first substrate 100 The vertical projection is located within the pixel opening area 110a, the vertical projection of the third filter portion 210C on the first substrate 100 is located between adjacent pixel opening areas 110a, and the first filter portion 210A and the third filter portion The distance d1 between the vertical projections of the 210C and the first substrate 100 is not zero. That is to say, the vertical projection of the second filter portion 210B on the first substrate 100 is located at the edge of the pixel opening area 110a, and the second filter portion 210B can cover the edge of the pixel opening area 110a. Thereby, the problem of uneven light emission effect caused by uneven thickness of the light emitting layer 118 can be improved.

In this embodiment, the display device 10 may further include an interposer 150. The interposer 150 may be disposed between the first substrate 100 and the second substrate 200 to fill the space between the first substrate 100 and the second substrate 200. For example, the first substrate 100 and the second substrate 200 can be assembled together in such a manner that the second electrode 120 and the filter pattern layer 210 face each other through a packaging structure such as a frame, and the interposer 150 is filled in the first Between the substrate 100 and the second substrate 200. In this embodiment, the material of the interposer 150 includes a light-transmitting dielectric material to allow the light emitted by the pixel structure 110 to pass through.

Based on the above, in the display device 10 according to an embodiment of the present invention, the filter pattern layer 210 has a first filter portion 210A, a second filter portion 210B, and a third filter portion 210C, and the second filter portion 210B is located at the Between a filter 210A and a third filter 210C, the light transmittance of the first filter 210A is different from the light transmittance of the second filter 210B and the third filter 210C, the first filter The vertical projections of the light section 210A and the second filter section 210B on the first substrate 100 are located in the pixel opening area 110a, and the vertical projections of the third filter section 210C on the first substrate 100 are located in the adjacent pixel opening area Between 110a, and the second filter portion 210B is sandwiched between the first filter portion 210A and the third filter portion 210C. By this, the light transmittance provided by the second filter portion 210B at the periphery of the pixel opening area 110a is different from the light transmittance provided by the first filter portion 210A at the center of the pixel opening area 110a, which helps The problem of uneven light emission effect caused by uneven thickness of the light emitting layer 118 is improved, and the display quality of the display device 10 is improved.

2A is a schematic top view of a display device according to another embodiment of the invention. 2B is a schematic cross-sectional view of a display device according to another embodiment of the invention. In particular, the section of Fig. 2B corresponds to the section line B-B' of Fig. 2A. In order to make the drawing clear, some components are omitted in FIG. 2A, and the first filter portion 310A, the second filter portion 310B, and the third filter of the plurality of pixel opening regions 110a and the filter pattern layer 310 are mainly shown Department 310C. It must be noted here that the embodiments of FIGS. 2A and 2B continue to use the element numbers and partial contents of the embodiments of FIGS. 1A and 1B, wherein the same or similar reference numbers are used to indicate the same or similar elements, and the same are omitted. Description of technical content. For the description of the omitted parts, reference may be made to the foregoing embodiments, and the following embodiments will not be repeated.

The main difference between the embodiment of FIGS. 2A-2B and the embodiment of FIGS. 1A-1B lies in: the stacking method of the first filter pattern 312, the second filter pattern 314, and the third filter pattern 316 in the third filter portion 310C different.

2A and 2B, in the display device 20 of this embodiment, the filter pattern layer 310 has a first filter portion 310A, a second filter portion 310B, and a third filter portion 310C. The second filter 310B is located between the first filter 310A and the third filter 310C. In this embodiment, the filter pattern layer 310 includes a first filter pattern 312, a second filter pattern 314, and a third filter pattern 316. In this embodiment, the first filter pattern 312 may have a first portion 312a, a second portion 312b, and a third portion 312c. The first filter portion 310A includes a first portion 312a of the first filter pattern 312, the second filter portion 310B includes a second portion 312b of the first filter pattern 312, and the third filter portion 310C includes a first filter pattern The third part 312c of 312. That is, the first filter portion 310A, the second filter portion 310B, and the third filter portion 310C all include the first filter pattern 312.

In this embodiment, the second filter pattern 314 is stacked on the second portion 312b of the first filter pattern 312; the third filter pattern 316 and the second filter pattern 314 are sequentially stacked on the first filter pattern 312 On the third part 312c. As such, the third filter pattern 316 overlaps between the third portion 312c of the first filter pattern 312 and the second filter pattern 314. The second filter pattern 314 and the second portion 312b of the first filter pattern 312 together constitute the second filter portion 310B, and the second filter pattern 314, the third filter pattern 316, and the first The three parts 312c together constitute the third filter part 310C. By stacking the first filter pattern 312, the third filter pattern 316, and the second filter pattern 314, which are different colors, on the third filter portion 310C, a light shielding effect can be provided in the adjacent pixel opening area 110a The undesired components are shielded from time to time in place of the shading pattern, and the process of the shading pattern is omitted.

In this embodiment, the first filter portion 310A, the second filter portion 310B, and the third filter portion 310C respectively include one filter pattern, two stacked filter patterns of different colors, and three stacked The filter patterns of different colors are different from each other, so the light transmittance of the first filter 310A is greater than the light transmittance of the second filter 310B and the third filter 310C, and the light of the second filter 310B The transmittance is greater than the light transmittance of the third filter 310C. In addition, the light transmittances of the first filter 310A, the second filter 310B, and the third filter 310C are different from each other. The first filter 310A and the second filter 310B on the first substrate 100 The vertical projection is located within the pixel opening area 110a, the vertical projection of the third filter portion 310C on the first substrate 100 is located between adjacent pixel opening areas 110a, and the second filter portion 310B is sandwiched by the first filter Between the section 310A and the third filter section 310C. In detail, the vertical projection of the second filter portion 310B on the first substrate 100 is located at the edge of the pixel opening area 110a, and the second filter portion 310B can cover the edge of the pixel opening area 110a. Thereby, the light transmittance provided by the second filter portion 310B at the periphery of the pixel opening area 110a is different from the light transmittance provided by the first filter portion 310A at the center of the pixel opening area 110a, which helps The problem of uneven light emission effect caused by uneven thickness of the light emitting layer 118 is improved.

3A is a schematic top view of a display device according to yet another embodiment of the invention. 3B is a schematic cross-sectional view of a display device according to yet another embodiment of the invention. In particular, the section of FIG. 3B corresponds to the section line C-C' of FIG. 3A. In order to make the drawing clear, some components are omitted in FIG. 3A, and the first filter portion 410A, the second filter portion 410B, and the third filter of the plurality of pixel opening regions 110a and the filter pattern layer 410 are mainly shown. Department 410C. It must be noted here that the embodiments of FIGS. 3A and 3B follow the element numbers and partial contents of the embodiments of FIGS. 1A and 1B, wherein the same or similar reference numbers are used to indicate the same or similar elements, and the same are omitted Description of technical content. For the description of the omitted parts, reference may be made to the foregoing embodiments, and the following embodiments will not be repeated.

The main difference between the embodiment of FIGS. 3A-3B and the embodiment of FIGS. 1A-1B is that the third filter portion 410C further includes a light-shielding pattern 420.

3A and 3B, in the display device 30 of this embodiment, the filter pattern layer 410 has a first filter portion 410A, a second filter portion 410B, and a third filter portion 410C. The second filter portion 410B is located between the first filter portion 410A and the third filter portion 410C. In this embodiment, the filter pattern layer 410 includes a first filter pattern 412 and a second filter pattern 414. In this embodiment, the first filter pattern 412 may have a first portion 412a, a second portion 412b, and a third portion 412c. The first filter portion 410A includes a first portion 412a of the first filter pattern 412, the second filter portion 410B includes a second portion 412b of the first filter pattern 412, and the third filter portion 410C includes a first filter pattern The third part 412c of 412. In other words, the first filter portion 410A, the second filter portion 410B, and the third filter portion 410C all include the first filter pattern 412.

In this embodiment, the second filter pattern 414 is stacked on the second portion 412b and the third portion 412c of the first filter pattern 412. In this embodiment, the display device 30 further includes a light-shielding pattern 420. The light shielding pattern 420 is stacked on the third portion 412c of the first filter pattern 412. For example, the second filter pattern 414 and the light-shielding pattern 420 may be sequentially stacked on the third portion 412c of the first filter pattern 412, that is, the second filter pattern 414 is stacked on the third portion of the first filter pattern 412 Between the three parts 412c and the light shielding pattern 420. In this embodiment, a protective layer 418 may be selectively provided between the second filter pattern 414 and the light-shielding pattern 420, but the invention is not limited thereto. The protective layer 418 may also be disposed on the first portion 412a of the first filter pattern 412.

In this embodiment, the second filter pattern 414 and the second portion 412b of the first filter pattern 412 together constitute the second filter portion 410B, and the second filter pattern 414, the light shielding pattern 420 and the first filter pattern The third portion 412c of 412 collectively constitutes the third filter portion 410C. However, the invention is not limited to this. In other embodiments, the third filter portion 410C may not include the second filter pattern 414 or even include the third filter pattern. Since the first filter portion 410A and the second filter portion 410B respectively include a filter pattern and two stacked filter patterns of different colors from each other, and the third filter portion 410C includes the light-shielding pattern 420, the first filter The light transmittance of the light part 410A is greater than that of the second filter part 410B and the third filter part 410C, and the light transmittance of the second filter part 410B is greater than that of the third filter part 410C Penetration rate. In addition, the light transmittances of the first filter portion 410A, the second filter portion 410B, and the third filter portion 410C are different from each other. The first filter portion 410A and the second filter portion 410B on the first substrate 100 The vertical projection is located within the pixel opening area 110a, the vertical projection of the third filter portion 410C on the first substrate 100 is located between adjacent pixel opening areas 110a, and the second filter portion 410B is sandwiched by the first filter Between the portion 410A and the third filter portion 410C. In detail, the vertical projection of the second filter portion 410B on the first substrate 100 is located at the edge of the pixel opening area 110a, and the second filter portion 410B can cover the edge of the pixel opening area 110a. Thereby, the light transmittance provided by the second filter portion 410B at the periphery of the pixel opening area 110a is different from the light transmittance provided by the first filter portion 410A at the center of the pixel opening area 110a, which helps to improve The problem of uneven light emission due to uneven thickness of the light emitting layer 118.

4A is a schematic top view of a display device according to yet another embodiment of the invention. 4B is a schematic cross-sectional view of a display device according to yet another embodiment of the invention. In particular, the section of FIG. 4B corresponds to the section line D-D' of FIG. 4A. In order to make the drawing clear, some components are omitted in FIG. 4A, and the first filter portion 510A, the second filter portion 510B, and the third filter of the plurality of pixel opening regions 110a and the filter pattern layer 510 are mainly shown Department 510C. It must be noted here that the embodiments of FIGS. 4A and 4B follow the element numbers and partial contents of the embodiments of FIGS. 1A and 1B, wherein the same or similar reference numbers are used to denote the same or similar elements, and the same are omitted Description of technical content. For the description of the omitted parts, reference may be made to the foregoing embodiments, and the following embodiments will not be repeated.

The main difference between the embodiment of FIGS. 4A-4B and the embodiment of FIGS. 1A-1B is that the second filter portion 510B further includes a third filter pattern 516.

4A and 4B, in the display device 40 of this embodiment, the filter pattern layer 510 has a first filter portion 510A, a second filter portion 510B, and a third filter portion 510C. The second filter portion 510B is located between the first filter portion 510A and the third filter portion 510C. In this embodiment, the filter pattern layer 510 includes a first filter pattern 512, a second filter pattern 514, and a third filter pattern 516. In this embodiment, the first filter pattern 512 may have a first portion 512a, a second portion 512b, and a third portion 512c. The first filter portion 510A includes a first portion 512a of the first filter pattern 512, the second filter portion 510B includes a second portion 512b of the first filter pattern 512, and the third filter portion 510C includes a first filter pattern The third part of 512c. In other words, the first filter portion 510A, the second filter portion 510B, and the third filter portion 510C all include the first filter pattern 512.

In this embodiment, the second filter pattern 514 and the third filter pattern 516 are sequentially stacked on the second portion 512b and the third portion 512c of the first filter pattern 512. In this way, both the second filter portion 510B and the third filter portion 510C may be formed by superposing the first filter pattern 512, the second filter pattern 514, and the third filter pattern 516. For example, in this embodiment, the second filter pattern 514 is stacked between the second portion 512b of the first filter pattern 512 and the third filter pattern 516, and the second filter pattern 514 is stacked Between the third portion 512c of the first filter pattern 512 and the third filter pattern 516. By stacking the first filter pattern 512, the second filter pattern 514, and the third filter pattern 516, which are different colors, on the second filter portion 510B and the third filter portion 510C, a light shielding effect can be provided while the phase The members that do not want to be exposed are shielded between adjacent pixel opening regions 110a to replace the light-shielding pattern, and the process of the light-shielding pattern is omitted.

In this embodiment, the first filter portion 510A is composed of only one color filter pattern, and the second filter portion 510B and the third filter portion 510C are each formed by stacking three filter patterns of different colors from each other . Therefore, the light transmittance of the first filter portion 510A is greater than the light transmittance of the second filter portion 510B and the third filter portion 510C, and the light transmittance of the second filter portion 510B is equal to the third filter The light transmittance of section 510C. In addition, the light transmittance of the first filter portion 510A is different from the light transmittance of the second filter portion 510B and the third filter portion 510C. The first filter portion 510A and the second filter portion 510B are in the first The vertical projection on the substrate 100 is located within the pixel opening area 110a, the vertical projection of the third filter portion 510C on the first substrate 100 is located between adjacent pixel opening areas 110a, and the second filter portion 510B is sandwiched between Between the first filter portion 510A and the third filter portion 510C. In detail, the vertical projection of the second filter portion 510B on the first substrate 100 is located at the edge of the pixel opening area 110a, and the second filter portion 510B can cover the edge of the pixel opening area 110a. By this, the light transmittance provided by the second filter portion 510B at the periphery of the pixel opening area 110a is different from the light transmittance provided by the first filter portion 510A at the center of the pixel opening area 110a, which helps The problem of uneven light emission effect caused by uneven thickness of the light emitting layer 118 is improved.

5A is a schematic top view of a display device according to another embodiment of the invention. 5B is a schematic cross-sectional view of a display device according to another embodiment of the invention. In particular, the section of FIG. 5B corresponds to the section line E-E' of FIG. 5A. In order to make the drawing clear, some components are omitted in FIG. 5A, and the first filter portion 610A, the second filter portion 610B, and the third filter of the plurality of pixel opening regions 110a and the filter pattern layer 610 are mainly shown. Department 610C. It must be noted here that the embodiments of FIGS. 5A and 5B continue to use the element numbers and partial contents of the embodiments of FIGS. 4A and 4B, wherein the same or similar reference numbers are used to indicate the same or similar elements, and the same are omitted Description of technical content. For the description of the omitted parts, reference may be made to the foregoing embodiments, and the following embodiments will not be repeated.

The main difference between the embodiment of FIGS. 5A-5B and the embodiment of FIGS. 4A-4B is that the second filter portion 610B and the third filter portion 610C further include a light-shielding pattern 620.

5A and 5B, in the display device 50 of this embodiment, the filter pattern layer 610 has a first filter portion 610A, a second filter portion 610B, and a third filter portion 610C. The second filter portion 610B is located between the first filter portion 610A and the third filter portion 610C. In this embodiment, the filter pattern layer 610 includes a first filter pattern 612, a second filter pattern 614, and a third filter pattern 616. In this embodiment, the first filter pattern 612 may have a first portion 612a, a second portion 612b, and a third portion 612c. The first filter portion 610A includes a first portion 612a of the first filter pattern 612, the second filter portion 610B includes a second portion 612b of the first filter pattern 612, and the third filter portion 610C includes the first filter pattern The third part of 612 612c.

In this embodiment, the second filter portion 610B and the third filter portion 610C further include a light-shielding pattern 620. The light shielding pattern 620 is stacked on the second portion 612b and the third portion 612c of the first filter pattern 612. That is to say, both the second filter portion 610B and the third filter portion 610C may be formed by superposing the first filter pattern 612, the second filter pattern 614, the third filter pattern 616, and the light-shielding pattern 620. For example, the second filter pattern 614, the third filter pattern 616, and the light-shielding pattern 620 may be sequentially stacked on the second portion 612b and the third portion 612c of the first filter pattern 612. However, the invention is not limited to this. In other embodiments, the second filter portion 610B and the third filter portion 610C may also be formed by overlapping the first filter pattern 612, the second filter pattern 614, and the light-shielding pattern 620. In still other embodiments, the second filter portion 610B and the third filter portion 610C may also be formed by overlapping the first filter pattern 612 and the light-shielding pattern 620.

In this embodiment, the first filter portion 610A includes only the first filter pattern 612, and the second filter portion 610B and the third filter portion 610C both include the light-shielding pattern 620, so the light of the first filter portion 610A The transmittance is greater than the light transmittance of the second filter 610B and the third filter 610C, and the light transmittance of the second filter 610B is equal to the light transmittance of the third filter 610C. In addition, the light transmittance of the first filter portion 610A is different from the light transmittance of the second filter portion 610B and the third filter portion 610C. The first filter portion 610A and the second filter portion 610B are in the first The vertical projection on the substrate 100 is located within the pixel opening area 110a, the vertical projection of the third filter portion 610C on the first substrate 100 is between adjacent pixel opening areas 110a, and the second filter portion 610B is sandwiched between Between the first filter portion 610A and the third filter portion 610C. In detail, the vertical projection of the second filter portion 610B on the first substrate 100 is located at the edge of the pixel opening area 110a, and the second filter portion 610B can cover the edge of the pixel opening area 110a. Thereby, the light transmittance provided by the second filter portion 610B at the periphery of the pixel opening area 110a is different from the light transmittance provided by the first filter portion 610A at the center of the pixel opening area 110a, which helps to improve The problem of uneven light emission due to uneven thickness of the light emitting layer 118. In this embodiment, a protective layer 618 may be selectively provided between the third filter pattern 616 and the light-shielding pattern 620, but the invention is not limited thereto. The protective layer 618 may also be disposed on the first portion 612a of the first filter pattern 612.

6A is a schematic top view of a display device according to yet another embodiment of the invention. 6B is a schematic cross-sectional view of a display device according to yet another embodiment of the invention. In particular, the section of Fig. 6B corresponds to the section line F-F' of Fig. 6A. In order to make the drawing clear, some components are omitted in FIG. 6A, and the plurality of pixel opening regions 110a and the first filter portion 710A, the second filter portion 710B, and the third filter of the filter pattern layer 710 are mainly shown.部710C. It must be noted here that the embodiments of FIGS. 6A and 6B follow the element numbers and partial contents of the embodiments of FIGS. 3A and 3B, wherein the same or similar reference numbers are used to indicate the same or similar elements, and the same are omitted Description of technical content. For the description of the omitted parts, reference may be made to the foregoing embodiments, and the following embodiments will not be repeated.

The main difference between the embodiments of FIGS. 6A-6B and the embodiments of FIGS. 3A-3B is that the thickness of the second portion 712b of the first filter pattern 712 is smaller than the thickness of the first portion 712a.

6A and 6B, in the display device 60 of this embodiment, the filter pattern layer 710 has a first filter portion 710A, a second filter portion 710B, and a third filter portion 710C. The second filter portion 710B is located between the first filter portion 710A and the third filter portion 710C. In this embodiment, the filter pattern layer 710 includes a first filter pattern 712 and a second filter pattern 714. In this embodiment, the first filter pattern 712 may have a first portion 712a, a second portion 712b, and a third portion 712c. The first filter portion 710A includes the first portion 712a of the first filter pattern 712, the second filter portion 710B includes the second portion 712b of the first filter pattern 712, and the third filter portion 710C includes the first filter pattern The third part of 712c. In other words, the first filter portion 710A, the second filter portion 710B, and the third filter portion 710C all include the first filter pattern 712.

In this embodiment, the second filter pattern 714 and the light shielding pattern 720 are stacked on the third portion 712c of the first filter pattern 712. For example, the second filter pattern 714 and the light-shielding pattern 720 may be sequentially stacked on the third portion 712c of the first filter pattern 712, that is, the second filter pattern 714 is stacked on the third portion of the first filter pattern 712 Between the three parts 712c and the light shielding pattern 720. In this embodiment, the first portion 712a of the first filter pattern 712 constitutes the first filter portion 710A, the second portion 712b of the first filter pattern 712 constitutes the second filter portion 710B, and the second filter pattern 714 The light-shielding pattern 720 and the third portion 712c of the first filter pattern 712 together constitute a third filter portion 710C. However, the invention is not limited to this. In other embodiments, the third filter portion 710C may not include the second filter pattern 714 or even include the third filter pattern. In this embodiment, the display device 60 may further include a protective layer 718. The protective layer 718 may be disposed between the second filter pattern 714 and the light shielding pattern 720. The protective layer 718 may also be disposed on the first portion 712a and the second portion 712b of the first filter pattern 712.

In this embodiment, the thickness of the second portion 712b of the first filter pattern 712 is smaller than the thickness of the first portion 712a, so that the color purity of the first portion 710a of the first filter pattern 712 may be different from the second portion 710b Color purity. The change in the thickness of the second portion 710b may affect the light transmittance, thereby improving the problem of uneven light emission effects of the first portion 710a and the second portion 710b caused by the uneven thickness of the light emitting layer 118. In this embodiment, the thickness of the second portion 712b of the portion is smaller than the thickness of the first portion 712a, the thickness of the second portion 712b of the other portion is equal to the thickness of the first portion 712a, and the thicknesses of the second portion 712b and the first portion 712a are equal or The inequalities are staggered. For example, the boundary between the vertical projection of the first filter portion 710A on the first substrate 100 and the vertical projection of the second filter portion 710B on the first substrate 100 is uneven. Therefore, the light transmittance of the first filter portion 710A is greater than the light transmittance of part of the second filter portion 710B and the third filter portion 710C, and the light transmittance of the second filter portion 710B is greater than the third filter The light transmittance of the light section 710C. The light transmittances of the first filter portion 710A, the second filter portion 710B, and the third filter portion 710C are different from each other. The first filter portion 710A and the second filter portion 710B on the first substrate 100 The vertical projection is located within the pixel opening area 110a, the vertical projection of the third filter portion 710C on the first substrate 100 is located between adjacent pixel opening areas 110a, and the second filter portion 710B is sandwiched by the first filter Between the portion 710A and the third filter portion 710C. In detail, the vertical projection of the second filter portion 710B on the first substrate 100 is located at the edge of the pixel opening area 110a, and the second filter portion 710B can cover the edge of the pixel opening area 110a. Thereby, the light transmittance provided by the second filter portion 710B at the periphery of the pixel opening area 110a is different from the light transmittance provided by the first filter portion 710A at the center of the pixel opening area 110a, which helps to improve The problem of uneven light emission due to uneven thickness of the light emitting layer 118. However, the present invention is not limited to this. For example, in other embodiments, the thickness of the second portion 712b of the first filter pattern 712 may also be smaller than the thickness of the first portion 712a, so that the light transmittance of the first filter portion 710A is greater than the second filter The light transmittance of the portion 710B.

7A is a schematic top view of a display device according to yet another embodiment of the invention. 7B is a schematic cross-sectional view of a display device according to yet another embodiment of the invention. In particular, the section of FIG. 7B corresponds to the section line G-G' of FIG. 7A. In order to make the drawing clear, some components are omitted in FIG. 7A, and the plurality of pixel opening regions 110a and the first filter portion 810A, the second filter portion 810B, and the third filter of the filter pattern layer 810 are mainly shown. Department 810C. It must be noted here that the embodiments of FIGS. 7A and 7B follow the element numbers and partial contents of the embodiments of FIGS. 3A and 3B, wherein the same or similar reference numbers are used to indicate the same or similar elements, and the same are omitted Description of technical content. For the description of the omitted parts, reference may be made to the foregoing embodiments, and the following embodiments will not be repeated.

The main difference between the embodiment of FIGS. 7A-7B and the embodiment of FIGS. 3A-3B is that the second filter pattern 814 includes a plurality of modified patterns 814b.

7A and 7B, in the display device 70 of this embodiment, the filter pattern layer 810 has a first filter portion 810A, a second filter portion 810B, and a third filter portion 810C. The second filter portion 810B is located between the first filter portion 810A and the third filter portion 810C. In this embodiment, the filter pattern layer 810 includes a first filter pattern 812 and a second filter pattern 814. In this embodiment, the first filter pattern 812 may have a first portion 812a, a second portion 812b, and a third portion 812c. The first filter portion 810A includes a first portion 812a of the first filter pattern 812, the second filter portion 810B includes a second portion 812b of the first filter pattern 812, and the third filter portion 810C includes a first filter pattern The third part of 812 812c. In other words, the first filter portion 810A, the second filter portion 810B, and the third filter portion 810C all include the first filter pattern 812.

In this embodiment, the second filter pattern 814 may include a plurality of modified patterns 814b and peripheral patterns 814c. A plurality of decoration patterns 814b are stacked on the second portion 812b of the first filter pattern 812, and the peripheral patterns 814c and the light shielding pattern 820 are stacked on the third portion 812c of the first filter pattern 812. For example, a plurality of decoration patterns 814b are stacked on the second portion 812b of the first filter pattern 812 at intervals. The distance d2 between the plurality of modified patterns 814b is 1 micrometer to 5 micrometers. For example, the distance between the modified pattern 814b and the peripheral pattern 814c may also be the same as the separation distance d2, but it is not limited thereto. The plurality of modified patterns 814b and the second portion 812b of the first filter pattern 812 together constitute the second filter portion 810B. Therefore, the light transmittance of the first filter portion 810A is substantially greater than the light transmittance of the second filter portion 810B.

In this embodiment, the peripheral pattern 814c of the second filter pattern 814 and the light shielding pattern 820 are sequentially stacked on the third portion 812c of the first filter pattern 812, that is, the peripheral pattern 814c of the second filter pattern 814 overlaps Between the third portion 812c of the first filter pattern 812 and the light shielding pattern 820. The third filter portion 810C is composed of the peripheral pattern 814c of the second filter pattern 814, the light shielding pattern 820, and the third portion 812c of the first filter pattern 812, but the invention is not limited thereto. Therefore, the light transmittance of the first filter part 810A is greater than that of the third filter part 810C, and the light transmittance of the second filter part 810B is greater than that of the third filter part 810C . The light transmittances of the first filter portion 810A, the second filter portion 810B, and the third filter portion 810C are different from each other. The first filter portion 810A and the second filter portion 810B on the first substrate 100 The vertical projection is located within the pixel opening area 110a, the vertical projection of the third filter portion 810C on the first substrate 100 is located between adjacent pixel opening areas 110a, and the second filter portion 810B is sandwiched by the first filter Between the portion 810A and the third filter portion 810C. In detail, the vertical projection of the second filter portion 810B on the first substrate 100 is located at the edge of the pixel opening area 110a, and the second filter portion 810B can cover the edge of the pixel opening area 110a. It helps to improve the problem of uneven light emission caused by uneven thickness of the light emitting layer 118. In other embodiments, the third filter portion 810C may not include the second filter pattern 814 or more include the third filter pattern. In this embodiment, the display device 70 may further include a protective layer 818. The protective layer 818 may be disposed on the first portion 812a of the first filter pattern 812 and the second filter pattern 814. The protective layer 818 can also be selectively disposed between the second filter pattern 814 and the light-shielding pattern 820.

In summary, the display device of the embodiment of the present invention includes a first substrate, a pixel structure, a second substrate, and a filter pattern layer, wherein the filter pattern layer has a first filter portion, a second filter portion, and a third The filter portion and the second filter portion are located between the first filter portion and the third filter portion. Since the light transmittance of the first filter part is different from the light transmittance of the second filter part and the third filter part, the vertical projection of the first filter part and the second filter part on the first substrate Located within the pixel opening area, the vertical projection of the third filter portion on the first substrate is located between adjacent pixel opening areas, and the second filter portion is sandwiched between the first filter portion and the third filter portion between. In this way, the second filter portion can cover the edge of the pixel opening area, so that the light transmittance provided by the second filter portion around the pixel opening area is different from the first filter portion in the pixel opening area The light transmittance provided by the center of is used to improve the problem of uneven light emission caused by the uneven thickness of the light emitting layer 118, thereby improving the display quality of the display device.

Although the present invention has been disclosed as above by the embodiments, it is not intended to limit the present invention. Any person with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention shall be subject to the scope defined in the appended patent application.

10, 20, 30, 40, 50, 60, 70 ‧‧‧ display device 100‧‧‧The first substrate 110‧‧‧ pixel structure 110a‧‧‧Pixel opening area 112‧‧‧Active components 114‧‧‧First electrode 114t, 118t‧‧‧Top 116‧‧‧Embankment 116e‧‧‧edge 116s‧‧‧Sidewall 118‧‧‧luminous layer 118a‧‧‧point 118b‧‧‧Boundary 120‧‧‧Second electrode 130‧‧‧flat layer 130a‧‧‧Through hole 150‧‧‧Intermediate 200‧‧‧Second substrate 210, 310, 410, 510, 610, 710, 810 ‧‧‧ filter pattern layer 210A, 310A, 410A, 510A, 610A, 710A, 810A 210B, 310B, 410B, 510B, 610B, 710B, 810B 210C, 310C, 410C, 510C, 610C, 710C, 810C 212, 312, 412, 512, 612, 712, 812 212a, 312a, 412a, 512a, 612a, 712a, 812a 212b, 312b, 412b, 512b, 612b, 712b, 812b 212c, 312c, 412c, 512c, 612c, 712c, 812c 214, 314, 414, 514, 614, 714, 814‧‧‧‧Second filter pattern 216, 316, 516, 616‧‧‧ Third filter pattern 418, 618, 718, 818‧‧‧ protective layer 420, 620, 720, 820 814b‧‧‧retouched pattern 814c‧‧‧Peripheral patterns A-A’, B-B’, C-C’, D-D’, E-E’, F-F’, G-G’ d1‧‧‧Distance d2‧‧‧ Separation distance T1‧‧‧ First distance T2‧‧‧Second distance z‧‧‧ direction

FIG. 1A is a schematic top view of a display device according to an embodiment of the invention. FIG. 1B is a schematic cross-sectional view of a display device according to an embodiment of the invention. 2A is a schematic top view of a display device according to another embodiment of the invention. 2B is a schematic cross-sectional view of a display device according to another embodiment of the invention. 3A is a schematic top view of a display device according to yet another embodiment of the invention. 3B is a schematic cross-sectional view of a display device according to yet another embodiment of the invention. 4A is a schematic top view of a display device according to yet another embodiment of the invention. 4B is a schematic cross-sectional view of a display device according to yet another embodiment of the invention. 5A is a schematic top view of a display device according to another embodiment of the invention. 5B is a schematic cross-sectional view of a display device according to another embodiment of the invention. 6A is a schematic top view of a display device according to yet another embodiment of the invention. 6B is a schematic cross-sectional view of a display device according to yet another embodiment of the invention. 7A is a schematic top view of a display device according to yet another embodiment of the invention. 7B is a schematic cross-sectional view of a display device according to yet another embodiment of the invention.

10‧‧‧Display device

100‧‧‧The first substrate

110‧‧‧ pixel structure

110a‧‧‧Pixel opening area

112‧‧‧Active components

114‧‧‧First electrode

114t, 118t‧‧‧Top

116‧‧‧Embankment

116e‧‧‧edge

116s‧‧‧Sidewall

118‧‧‧luminous layer

118a‧‧‧point

118b‧‧‧Boundary

120‧‧‧Second electrode

130‧‧‧flat layer

130a‧‧‧Through hole

150‧‧‧Intermediate

200‧‧‧Second substrate

210‧‧‧filter pattern layer

210A‧‧‧First Filter Department

210B‧‧‧Second filter

210C‧‧‧The third filter

212‧‧‧First filter pattern

212a‧‧‧Part 1

212b‧‧‧Part II

212c‧‧‧Part III

214‧‧‧Second filter pattern

216‧‧‧ Third filter pattern

A-A’‧‧‧cutting line

d1‧‧‧Distance

T1‧‧‧ First distance

T2‧‧‧Second distance

z‧‧‧ direction

Claims (14)

A display device includes: a first substrate; a pixel structure disposed on the first substrate, wherein the pixel structure includes: an active element; a first electrode electrically connected to the active element; and a bank layer disposed on the On the first electrode, and surrounding the periphery of the first electrode, wherein the edge of the side wall of the bank layer contacting the first electrode surrounds the pixel opening area; the light-emitting layer is provided on the first electrode and is protected by the bank Surrounded by layers; a second substrate, which is opposite to the first substrate; and a filter pattern layer, which is arranged on the second substrate and has a first filter portion, a second filter portion, and a third filter portion, the The second filter portion is located between the first filter portion and the third filter portion, wherein the light transmittance of the first filter portion is different from that of the second filter portion and the third filter portion Light transmittance, the vertical projection of the first filter portion and the second filter portion on the first substrate is within the pixel opening area, and the third filter portion is perpendicular to the first substrate The projection is located between adjacent pixel opening areas, and the distance between the vertical projection of the first filter portion and the third filter portion on the first substrate is not 0, wherein the third filter portion has The light transmittance is less than the light transmittance of the second filter part, wherein the filter pattern layer includes a first filter pattern, wherein the first filter part includes Including the first part of the first filter pattern, the second filter part includes the second part of the first filter pattern, and the third filter part includes the third part of the first filter pattern, wherein the The filter pattern layer further includes a second filter pattern, which is stacked on the second portion of the first filter pattern to form the second filter portion together with the second portion. The display device as described in item 1 of the patent application range, wherein the distance between the vertical projection of the first filter portion and the third filter portion on the first substrate is 10 μm to 15 μm. The display device according to item 1 of the patent application scope, wherein the boundary between the vertical projection of the first filter portion on the first substrate and the vertical projection of the second filter portion on the first substrate is uneven. The display device according to item 1 of the patent application range, wherein the second filter pattern includes a plurality of decoration patterns, and the decoration patterns are stacked on the second portion of the first filter pattern at intervals. The display device as described in item 4 of the patent application range, wherein the separation distance between the modified patterns is 1 μm to 5 μm. The display device as described in item 1 of the patent application range, wherein the second filter pattern is stacked on the third portion of the first filter pattern to form the third filter portion together with the third portion. The display device as described in item 6 of the patent application range, wherein the filter pattern layer further includes a third filter pattern, and the third filter pattern is also stacked on the first filter The third filter portion is formed on the third portion of the pattern together with the third portion and the second filter pattern. The display device as described in item 7 of the patent application range, wherein the third filter pattern is also stacked on the second portion of the first filter pattern to form the second filter portion together with the second portion. The display device as described in item 1 of the patent application range, wherein the filter pattern layer further includes: a light-shielding pattern stacked on the third portion of the first filter pattern in common with the third portion This third filter portion is constituted. The display device as described in item 9 of the patent application range, wherein the light-shielding pattern is also stacked on the second portion of the first filter pattern to constitute the second filter portion together with the second portion. The display device according to item 1 of the patent application scope, wherein the thickness of the second portion of the first filter pattern is smaller than the thickness of the first portion. The display device as described in item 1 of the patent application range, wherein in the direction perpendicular to the first substrate, the top surface of the light-emitting layer corresponds to a point in the center of the pixel opening area and the top surface of the first electrode The distance between them is the first distance, and the distance from the boundary between the top surface of the light-emitting layer and the bank layer to the top surface of the first electrode is the second distance, and the first distance is less than or equal to the second distance, And the second distance is less than or equal to 20 times the first distance. The display device according to item 1 of the patent application scope, wherein the light transmittance of the first filter portion is greater than the light transmittance of the third filter portion. The display device according to item 1 of the patent application scope, wherein the light transmittance of the second filter portion is smaller than the light transmittance of the first filter portion.

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