TW202022444A - Display device - Google Patents

Abstract

A display device including a first display panel and a second display panel is provided. The first display panel includes a first pixel array layer. The first pixel array layer includes first scan lines, first data lines and first sub-pixel structures. The first scan lines are intersected with the first data lines and enclose first display opening areas. Each of the first sub-pixel structures includes a first pixel electrode. The first display opening area is divided into a first driving pixel area where the first pixel electrode is located and a first blank pixel area where the first pixel electrode does not exist. The second display panel is superposed on the first display panel. The second display panel includes a second pixel array layer having second display opening areas, and one of the second display opening areas is overlapped with the first blank pixel area of one of the first display opening areas.

Description

Display device

The present invention relates to a display device, and more particularly to a display device with blank pixel areas.

With the advancement of technology, white sub-pixels can be added to the pixel structure of the original three-color sub-pixels (red sub-pixel, green sub-pixel, and blue sub-pixel) to improve the display of the display device. brightness. However, the newly added white sub-pixels also need to be driven by thin film transistors, which in turn causes the problem of complicated driving circuits and high power consumption of the display device. Therefore, there is an urgent need for a solution that can solve the above-mentioned problems.

The invention provides a display device with good performance.

A display device of the present invention includes a first display panel and a second display panel. The first display panel includes a first light shielding pattern and a first pixel array layer. The first pixel array layer includes a plurality of first scan lines, a plurality of first data lines, and a plurality of first sub-pixel structures. The plurality of first scan lines and the plurality of first data lines are staggered to enclose a plurality of first display opening regions. The first light shielding pattern is located between the plurality of first display opening regions. Each of the first sub-pixel structures includes a first pixel electrode. The first display opening area is divided into a first driving pixel area where the first pixel electrode is located and a first blank pixel area where the first pixel electrode does not exist. The second display panel and the first display panel are stacked up and down. The second display panel includes a second pixel array layer. The second pixel array layer has a plurality of second display opening regions, and one of the second display opening regions partially overlaps the first blank pixel region of one of the first display opening regions.

Based on the foregoing, in the display device of an embodiment of the present invention, the first pixel array layer of the first display panel has a plurality of first display opening areas, and the first display opening area is divided into the first driving area where the first pixel electrode is located. The pixel area and the first blank pixel area where the first pixel electrode does not exist. Thereby, the display brightness of the display device can be increased, and the display quality of the display device 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 can 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. Therefore, the exemplary term "lower" may include an orientation of "lower" and "upper", depending on the specific orientation of the drawing. 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, the "about", "approximate" or "substantially" used herein can select a more acceptable deviation range or standard deviation based on optical properties, etching properties or other properties, and not one standard deviation can be applied to all properties .

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.

FIG. 1A is a schematic diagram of a display device according to an embodiment of the invention. 1B to 1C are schematic top views of a light shielding pattern and a pixel array layer of a display device according to an embodiment of the invention. In particular, FIG. 1B corresponds to the first light shielding pattern 160 and the first pixel array layer 120 of the first display panel 100 of FIG. 1A, and FIG. 1C corresponds to the first light shielding pattern 260 and the second picture of the second display panel 200 of FIG. 1A.素array layer 220.

1A and 1B, the display device 10 of this embodiment includes a first display panel 100 and a second display panel 200. In this embodiment, the display device 10 further includes a first polarizing plate 150 and a second polarizing plate 250, but the invention is not limited thereto. In this embodiment, the first display panel 100 and the second display panel 200 are located between the first polarizing plate 150 and the second polarizing plate 250.

The first display panel 100 includes a first light shielding pattern 160 and a first pixel array layer 120. In this embodiment, the first display panel 100 further includes a first lower substrate 110, a first display medium layer 130, and a first upper substrate 140, but the invention is not limited thereto. The first display medium layer 130 is located between the first lower substrate 110 and the first upper substrate 140. The first display medium layer 130 is driven by the first pixel array layer 120. For example, in this embodiment, the first display medium layer 130 may be a liquid crystal layer with a plurality of liquid crystal molecules, but the invention is not limited thereto.

The first upper substrate 140 is opposite to the first lower substrate 110. In this embodiment, the first upper substrate 140 and the first lower substrate 110 are, for example, rigid substrates. However, the present invention is not limited to this. In other embodiments, the first upper substrate 140 and the first lower substrate 110 may also be flexible substrates. 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.

The first pixel array layer 120 is located between the first lower substrate 110 and the first display medium layer 130, and the first light shielding pattern 160 is located between the first upper substrate 140 and the first display medium layer 130. In some embodiments, the first light shielding pattern 160 and the first pixel array layer 120 may both be located on the same side of the first display medium layer 130, for example, both are located between the first lower substrate 110 and the first display medium layer 130. between. As shown in FIG. 1B, the first pixel array layer 120 includes a plurality of first scan lines 121, a plurality of first data lines 122, and a plurality of first pixel structures 124, but the invention is not limited thereto. The first scan line 121 and the first data line 122 are arranged alternately. For example, in this embodiment, the first scan line 121 extends in the first direction x, and the first data line 122 extends in the second direction y. The first direction x may intersect the first direction in a vertical or non-vertical manner. Two directions y. Each first sub-pixel structure 124 is electrically connected to one of the corresponding first scan lines 121 and one of the corresponding first data lines 122. Based on the consideration of conductivity, the first scan line 121 and the first data line 122 generally use metal materials. However, the present invention is not limited to this. According to other embodiments, the first scan line 121 and the first data line 122 may also use other conductive materials (for example, nitrides of metallic materials, oxides of metallic materials, oxynitride of metallic materials). Or other suitable materials) or a stacked layer of metal materials and other conductive materials.

Each of the first sub-pixel structures 124 includes a first pixel electrode 1241. In this embodiment, each of the first sub-pixel structures 124 further includes an active element 1242. For example, in this embodiment, the active device 1242 includes at least one thin film transistor having a gate, a semiconductor pattern, a drain, and a source. The gate is electrically connected to the corresponding first scan line 121, and the drain It is electrically connected to the corresponding first data line 122, and the drain is electrically connected to the first pixel electrode 1241, but the invention is not limited thereto. The first sub-pixel structure 124 may further include a first common electrode 1243, and the first pixel electrode 1241 is disposed above the first common electrode 1243. From the cross-sectional view of FIG. 1A, the film layer of the first pixel electrode 1241 is located between the film layer of the first common electrode 1243 and the first display medium layer 130. The first pixel electrode 1241 has a plurality of slits exposing the first common electrode 1243, and the first display panel 100 can drive the first display medium layer by the electric field between the first pixel electrode 1241 and the first common electrode 1243 130 to display the screen.

Each of the first sub-pixel structures 124 has a first display opening area 124o. In this embodiment, the first display opening area 124o is enclosed by the first scan line 121 and the first data line 122 being alternately arranged. The first display opening area 124o can be further divided into a first driving pixel area 124d and a first blank pixel area 124w. In this embodiment, the first driving pixel area 124d has a first pixel electrode 1241, and the first blank pixel area 124w does not have a first pixel electrode 1241. That is, in this embodiment, the first blank pixel region 124w may not be provided with driving electrodes. When the first display panel 100 displays a picture, light can penetrate through the first blank pixel area 124w without being blocked by the electrode layer, which helps to improve the display brightness of the display device 10, and there is no need to add a first blank picture. The pixel area 124w is designed with a complicated driving circuit and the power consumption of the display device 10 is not increased. For example, there is neither the first pixel electrode 1241 nor the first common electrode 1243 in the first blank pixel area 124w of this embodiment, so the first blank pixel area 124w is not in the first display opening area 124o. The area affected by the driving signal, but the invention is not limited to this.

In this embodiment, the first display panel 100 further includes a plurality of first color filter patterns 170. The plurality of first color filter patterns 170 are respectively located in the plurality of first driving pixel regions 124d, but not in the first blank pixel regions 124w. The first color filter pattern 170 includes a first red filter pattern, a first blue filter pattern, and a first green filter pattern. Three adjacent first sub-pixel structures 124 constitute a pixel structure 124U. The first red filter pattern, the first blue filter pattern, and the first green filter pattern are respectively located in the first driving pixel regions 124d of the three adjacent first sub-pixel structures 124. In this embodiment, the total area of the individual first display opening regions 124o of the three first sub-pixel structures 124 in the pixel structure 124U is A, and the three first sub-pixel structures 124 in the pixel structure 124U The sum of the areas of the individual first blank pixel regions 124w is B, and B is 20% to 30% of A. In this embodiment, the areas of the individual first blank pixel regions 124w of the three first sub-pixel structures 124 in the pixel structure 124U may be different, but the invention is not limited to this. In this way, the proportion of the sub-pixel structure of each color in the pixel structure 124U can be adjusted according to requirements to present different colors.

The first light shielding pattern 160 is disposed between adjacent first pixel electrodes 1241. In this embodiment, the first shading pattern 160 is disposed between the first display opening regions 124o of the adjacent first sub-pixel structures 124. In this embodiment, there is no first light shielding pattern 160 between the first driving pixel area 124d and the first blank pixel area 124w in the first display opening area 124o. The first light-shielding pattern 160 extends between two adjacent first display opening regions 124o, wherein a first driving pixel region 124d and a first blank pixel region 124w are provided with a A light-shielding pattern 160. For example, in this embodiment, the first light-shielding pattern 160 covers the first scan line 121, the first data line 122, and the active device 1242. That is, the area of the first light shielding pattern 160 overlaps the area of the first scan line 121, the first data line 122 and the active device 1242. In addition, the width of the first light shielding pattern 160 may be slightly larger than the width of the first scan line 121 or the first data line 122. In this embodiment, the material of the first light-shielding pattern 160 can be a single-layer or multi-layer stacked metal material (for example, at least one selected from the group consisting of copper, molybdenum, titanium, aluminum, tungsten, silver, gold and alloys thereof One), resin materials (such as polyimide, acrylate or other suitable resin materials), graphite or other suitable materials.

Please refer to FIGS. 1A and 1C, the second display panel 200 and the first display panel 100 are stacked up and down. The second display panel 200 includes a second pixel array layer 220. In this embodiment, the second display panel 200 further includes a second lower substrate 210, a second pixel array layer 220, a second display medium layer 230, a second light shielding pattern 260, and a second upper substrate 240, but the present invention does not Limit this.

The second upper substrate 240 is opposite to the second lower substrate 210. In this embodiment, the material of the second upper substrate 240 and the material of the second lower substrate 210 may be the same as or different from the material of the first upper substrate 140 or the material of the first lower substrate 110. In this embodiment, the second display panel 200 directly overlaps the first upper substrate 140 of the first display panel 100 through the second lower substrate 210, but the present invention is not limited to this. In other embodiments, a polarizing plate, a diffuser, an anti-reflection film, a phase retarder, or other suitable components may also be provided between the second display panel 200 and the first display panel 100. Or, in another part of the embodiments, the first upper substrate 140 of the first display panel 100 and the second lower substrate 210 of the second display panel 200 may be the same substrate, so that the first display panel 100 and the second display panel 200 The panel 200 shares the substrate to reduce the overall thickness of the display device 10.

The second pixel array layer 220 is located between the second lower substrate 210 and the second display medium layer 230, and the second light shielding pattern 260 is located between the second upper substrate 240 and the second display medium layer 230. In some embodiments, the second light shielding pattern 260 and the second pixel array layer 220 may both be located on the same side of the second display medium layer 230, for example, both are located between the second lower substrate 210 and the second display medium layer 230. between. As shown in FIG. 1C, the second pixel array layer 220 includes a plurality of second sub-pixel structures 224 arranged in an array, and may also include a plurality of scan lines 221 and a plurality of data lines 222, but the invention is not limited thereto. In this embodiment, the arrangement of the second shading pattern 260, the scan line 221 and the data line 222 may be similar to the arrangement of the first shading pattern 160, the first scan line 121 and the first data line 122 of the first display panel. The technical content will not be repeated here.

Each of the second sub-pixel structures 224 includes a second pixel electrode 2241. In this embodiment, each of the second sub-pixel structures 224 further includes an active element 2242. In this embodiment, the technical content of the active element 2242 may be similar to the technical content of the active element 1242, and will not be repeated here. The second sub-pixel structure 224 may further include a second common electrode 2243, and the second pixel electrode 2241 is disposed above the second common electrode 2243. From the cross-sectional view of FIG. 1A, the film layer of the second pixel electrode 2241 is located between the film layer of the second common electrode 2243 and the second display medium layer 230. The second pixel electrode 2241 has a plurality of slits exposing the second common electrode 2243, and the second display panel 200 can drive the second display medium layer by the electric field between the second pixel electrode 2241 and the second common electrode 2243 230 to display the screen.

Each of the second sub-pixel structures 224 has a second display opening area 224o. In this embodiment, the scan line 221 and the data line 222 are alternately arranged to enclose the second display opening area 224o. One of the second display opening regions 224o of the second pixel array layer 220 partially overlaps the first blank pixel region 124w of one of the first display opening regions 124o. In this embodiment, the second pixel electrode 2241 is disposed in the entire second display opening area 224o, and the second display opening area 224o is not divided into a blank pixel area where there is no pixel electrode. In other words, the entire second display opening area 224o is the second driving pixel area 224d. However, the present invention is not limited to this. In other embodiments, the second sub-pixel structure 224 can also be selectively the same as the first sub-pixel structure 124, dividing the second display opening area 224o into second driving pixels with second pixel electrodes 2241 The area 224d and the second blank pixel area where the second pixel electrode 2241 does not exist.

In this embodiment, the second display panel 200 further includes a plurality of second color filter patterns 270, and the plurality of second color filter patterns 270 are respectively located in the plurality of second display opening regions 224o (that is, the second driving pixel region). 224d) in. The second color filter pattern 270 includes a red filter pattern, a blue filter pattern, and a green filter pattern. Specifically, in this embodiment, four adjacent second sub-pixel structures 224 form a pixel structure 224U, where the red filter pattern, the blue filter pattern, and the green filter pattern are respectively located in the same pixel structure. In the pixel structure 224U, three of the second sub-pixel structures 224 have the second display opening area 224o (that is, the second driving pixel area 224d), and the remaining second sub-picture in the same pixel structure 224U The second display opening area 224o (ie, the second driving pixel area 224d) of the pixel structure 224 is not provided with a filter pattern. Therefore, the same pixel structure 224U may include a red sub-pixel structure provided with a red filter pattern, a blue sub-pixel structure provided with a blue filter pattern, and a green sub-pixel structure provided with a green filter pattern. And the white sub-pixel structure without color filter pattern.

In other embodiments, the second pixel array layer 220 may adopt the same structural design as the first pixel array layer 120. In other words, the first display panel 100 and the second display panel 200 may be two display panels with the same structure design. When the second pixel array layer 220 and the first pixel array layer 120 have the same structural design, the second display opening area 224o can be divided into a second driving pixel area 224d with a second pixel electrode 2241 and no second pixel area 224d. The second blank pixel area of the two-pixel electrode 2241 and three adjacent second sub-pixel structures 224 constitute a pixel structure 224U. The total area of the individual second display opening regions 224o of the three second sub-pixel structures 224 in the pixel structure 224U is C, and the individual second blank pictures of the three second sub-pixel structures 224 in the pixel structure 224U The total area of the prime area is D, which is 20% to 30% of C. In addition, the areas of the individual second blank pixel regions of the three second sub-pixel structures 224 in the pixel structure 224U may be different, but the present invention is not limited to this. In this way, the proportion of the sub-pixel structure of each color in the pixel structure 224U can be adjusted according to requirements to present different colors.

The second display medium layer 230 is located between the second pixel array layer 220 and the second upper substrate 240. The second display medium layer 230 is driven by a plurality of second sub-pixel structures 224. In this embodiment, the first display panel 100 and the second display panel 200 can be driven separately. In this way, the effect of depth of field can be presented by making the screen information displayed on the first display panel 100 and the second display panel 200 different, so that the human eye can view a more realistic three-dimensional image. In this embodiment, the material of the second display medium layer 230 may be the same as or different from the material of the first display medium layer 130.

Based on the above, in the display device 10 of an embodiment of the present invention, the first pixel array layer 120 of the first display panel 100 has a plurality of first display opening regions 124o, and the first display opening regions 124o are divided into first pictures The first driving pixel area 124d where the pixel electrode 1241 is located and the first blank pixel area 124w where the first pixel electrode 1241 does not exist. Thereby, the display brightness of the display device 10 can be increased, and the display quality of the display device 10 can be improved.

2A and 2B are schematic top views of the light shielding pattern and the pixel array layer of the display panel in the display device according to different embodiments of the present invention. It must be noted here that the light shielding pattern and pixel array layer of FIGS. 2A and 2B can be regarded as different implementations of the light shielding pattern and pixel array layer of FIG. 1B. Therefore, the same or similar reference numerals are used in these figures to indicate the same Or similar elements, and the description of the same technical content is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, and the following embodiments will not be repeated. The light shielding pattern and pixel array layer of FIG. 2A or FIG. 2B can also be used as another alternative implementation of the light shielding pattern and pixel array layer of the second display panel of FIG. 1C.

In FIG. 2A, the first pixel array layer 120 has a plurality of first display opening areas 124o, and the first display opening area 124o is divided into a first driving pixel area 124d where the first pixel electrode 1241 is located and a first picture The first blank pixel area 124w where the pixel electrode 1241 does not exist. The main difference between the embodiment of FIG. 2A and the embodiment of FIG. 1B is that the first blank pixel area 124w is divided into a first sub blank pixel area 124w1 and a second sub blank pixel area 124w2. The first driving pixel area 124d of the first display opening area 124o is located between the first sub-blank pixel area 124w1 and the second sub-blank pixel area 124w2. In this embodiment, the first sub-blank pixel area 124w1, the first driving pixel area 124d, and the second sub-blank pixel area 124w2 are arranged in the first direction x. However, the present invention is not limited to this. In other embodiments, as shown in FIG. 2B, the first sub-blank pixel area 124w1, the first driving pixel area 124d, and the second sub-blank pixel area 124w2 may be in the second direction. Arranged on y. Similar to the embodiment of FIG. 1B, the design of the first driving pixel area 124d and the first blank pixel area 124w of this embodiment helps to increase the display brightness of the display device, and thereby improve the display quality of the display device.

2C is a schematic top view of a light shielding pattern and a pixel array layer of a display panel in a display device according to another embodiment of the invention. It must be noted here that the light-shielding pattern and pixel array layer of FIG. 2C can be regarded as different implementations of the light-shielding pattern and pixel array layer of FIG. 2A, wherein the same or similar reference numerals are used to indicate the same or similar elements, and The description of the same technical content is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, and the following embodiments will not be repeated. The light shielding pattern and pixel array layer of FIG. 2C can also be used as another alternative implementation of the light shielding pattern and pixel array layer of the second display panel of FIG. 1C.

The main difference between the embodiment of FIG. 2C and the embodiment of FIG. 2A is that the individual first blank pixel regions 124w of the three first sub-pixel structures in the same pixel structure 124U have different configurations. Please refer to FIG. 2C. In the first pixel array layer 120 of this embodiment, three adjacent first sub-pixel structures 124A, 124B, and 124C form a pixel structure 124U. The first red filter pattern, the first blue filter pattern, and the first green filter pattern are respectively located in the first driving pixel region 124d of each of the three adjacent first sub-pixel structures 124A, 124B, and 124C . In this embodiment, the three first sub-pixel structures 124A, 124B, and 124C in the pixel structure 124U each have a first blank pixel area 124w, and the two first sub-pixel structures 124B, 124C have respective first A blank pixel area 124w is divided into a first blank pixel area 124w1 and a second blank pixel area 124w2.

In this embodiment, the first blank pixel area 124w and the first driving pixel area 124d of the first sub-pixel structure 124A are arranged in the second direction y; the first blank pixel area of the first sub-pixel structure 124B The pixel area 124w1, the first driving pixel area 124d and the second sub-blank pixel area 124w2 are arranged in the first direction x; and the first sub-blank pixel area 124w1 of the first sub-pixel structure 124C, the first driving picture The pixel area 124d and the second sub-blank pixel area 124w2 are arranged in the second direction y. That is, in this embodiment, the individual first blank pixel regions 124w of the three first sub-pixel structures in the same pixel structure 124U have different configurations. However, the present invention is not limited to this. In other embodiments, the individual first blank pixel regions 124w of the three first sub-pixel structures in the same pixel structure 124U can be arranged according to requirements.

3 is a schematic top view of a light shielding pattern and a pixel array layer in a display panel of a display device according to another embodiment of the invention. It must be noted here that the light shielding pattern and the pixel array layer of FIG. 3 can be regarded as different implementations of the light shielding pattern and the pixel array layer of FIG. 1B, wherein the same or similar reference numerals are used to indicate the same or similar Components, and the description of the same technical content is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, and the following embodiments will not be repeated. The light shielding pattern and the pixel array layer of FIG. 3 can also be used as another alternative implementation of the light shielding pattern and the pixel array layer of the second display panel of FIG. 1C.

The main difference between the embodiment of FIG. 3 and the embodiment of FIG. 1B is that the configuration of the first shading pattern 160 is different. 3, the first light shielding pattern 160 extends between the individual first driving pixel regions 124d of two adjacent first display opening regions 124o, but between the individual first driving pixel regions 124o of two adjacent first display opening regions 124o The junction 124a between the blank pixel areas 124w is disconnected. In other words, the data lines 122 between the individual first blank pixel regions 124w of two adjacent first display opening regions 124o are not shielded by the first light shielding pattern 160. Thereby, the aperture ratio of the display device can be improved.

4 is a schematic top view of a light-shielding pattern and sub-pixel structure in a display panel of a display device according to another embodiment of the invention. It must be noted here that the shading pattern and sub-pixel structure of FIG. 4 can be regarded as another implementation of the shading pattern and sub-pixel structure of FIG. 1B, wherein the same or similar reference numerals are used to indicate the same or similar elements, And the description of the same technical content is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, and the following embodiments will not be repeated. The light shielding pattern and sub-pixel structure of FIG. 4 can also be used as another alternative implementation of the light shielding pattern and sub-pixel structure of the second display panel of FIG. 1C.

The main difference between the embodiment of FIG. 4 and the embodiment of FIG. 1B lies in the design of the first pixel electrode 1241. 4, the first pixel electrode 1241 included in one of the first sub-pixel structures 124 includes a first boundary edge portion 1241a located at the boundary between the first driving pixel region 124d and the first blank pixel region 124wa . In this embodiment, the first boundary edge portion 1241a extends from the first driving pixel area 124d along the boundary between the first driving pixel area 124d and the first blank pixel area 124wa to overlap with the first light shielding pattern 160, namely The first pixel electrode 1241 has a structure that is more protruding (or wider in width) than other parts at the junction of the first driving pixel area 124d and the first blank pixel area 124wa. Thereby, the first light shielding pattern 160 can shield the display unevenness that may occur at the corners of the first pixel electrode 1241, thereby improving the light leakage problem that may occur in the first blank pixel region 124wa.

The first pixel electrode 1241 further includes another boundary edge portion 1241b substantially parallel to the first boundary edge portion 1241a. The boundary edge portion 1241b is located between the first driving pixel area 124d and another first blank pixel area 124wb. In other embodiments, the boundary edge portion 1241b may be similar to the first boundary edge portion 1241a, and the first driving pixel area 124d extends along the boundary between the first driving pixel area 124d and the first blank pixel area 124wb to overlap.于first shading pattern 160. Thereby, the light leakage of the first blank pixel region 124wb caused by the electric field generated at the corner of the first pixel electrode 1241 can be improved.

In this embodiment, the first blank pixel area 124wa can be regarded as an area between two adjacent data lines 122. The boundary 124wa' adjacent to the first blank pixel area 124wa and the first boundary edge portion 1241a has a first length 124wL, which can be regarded as the distance between two adjacent data lines 122. The boundary edge 1241a' between the first boundary edge portion 1241a and the first blank pixel area 124wa has a second length 1241L, and the second length 1241L is greater than the first length 124wL. Thereby, the light leakage of the first blank pixel region 124wa caused by the electric field generated at the corner of the first pixel electrode 1241 can be improved.

5 is a schematic top view of a light-shielding pattern and sub-pixel structure in a display panel of a display device according to still another embodiment of the invention. It must be noted here that the shading pattern and sub-pixel structure of FIG. 5 can be regarded as another implementation of the shading pattern and sub-pixel structure of FIG. 1B, wherein the same or similar reference numerals are used in the two figures to indicate the same or similar , And omit the description of the same 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 light-shielding pattern and sub-pixel structure of FIG. 5 can also be used as another alternative implementation of the light-shielding pattern and sub-pixel structure of the second display panel of FIG. 1C.

The main difference between the embodiment of FIG. 5 and the embodiment of FIG. 1B is that one of the first sub-pixel structures 124 further includes a first common electrode 1243' having at least one opening. Referring to FIG. 5, the first common electrode 1243' included in one of the first sub-pixel structures 124 has at least one opening 1243o. In this embodiment, the position of the opening 1243o corresponds to the corner of the first pixel electrode 1241 and is located at the boundary between the first driving pixel area 124d and the first blank pixel area 124w. Thereby, the light leakage of the first blank pixel region 124w caused by the electric field generated at the corner of the first pixel electrode 1241 can be improved.

6 is a schematic top view of a light shielding pattern and a pixel array layer in a display panel of a display device according to another embodiment of the invention. It must be noted here that FIG. 6 can be regarded as another embodiment of the light shielding pattern and the pixel array layer of FIG. 1B, in which the two figures use the same or similar reference numerals to represent the same or similar elements, and the same technical content is omitted. instruction of. For the description of the omitted parts, reference may be made to the foregoing embodiments, and the following embodiments will not be repeated. The light shielding pattern and the pixel array layer of FIG. 6 can also be used as another alternative implementation of the light shielding pattern and the pixel array layer of the second display panel of FIG. 1C.

The main difference between the embodiment of FIG. 6 and the embodiment of FIG. 1B is that the individual boundary edges 1241' of individual first pixel electrodes 1241 of two adjacent first sub-pixel structures 124 are not on the same straight line. Please refer to FIG. 6, in this embodiment, the first sub-pixel structure 124X, the first sub-pixel structure 124Y, and the first sub-pixel structure 124Z are used for description. The first pixel electrode 1241 of each of the first sub-pixel structure 124X, the first sub-pixel structure 124Y, and the first sub-pixel structure 124 has a first boundary edge portion 1241a adjacent to the upper first blank pixel area 124wa. Another boundary portion 1241b of the lower first blank pixel area 124wb.

The boundary edge 1241a' of the first boundary edge portion 1241a of the first sub-pixel structure 124X overlaps the first light shielding pattern 160. The boundary edge 1241a' of the first boundary edge portion 1241a of the first sub-pixel structure 124Y also overlaps the first light shielding pattern 160. However, the boundary edge 1241a' of the first boundary edge portion 1241a of the first sub-pixel structure 124Z does not overlap with the first light shielding pattern 160. Therefore, the individual first boundary edges 1241' of individual first pixel electrodes 1241 of two adjacent first sub-pixel structures 124 may not be on the same straight line. In addition, the boundary edge 1241b' of the other boundary edge portion 1241b of the first sub-pixel structure 124X, the boundary edge 1241b' of the other boundary edge portion 1241b of the first sub-pixel structure 124Y, and the first sub-pixel structure 124Z The boundary edge 1241b' of the other boundary edge portion 1241b may not be on the same straight line. At this time, the first driving pixel area 124d of the first sub-pixel structure 124X, the first sub-pixel structure 124Y, and the first sub-pixel structure 124Z and the color filter patterns corresponding to these sub-pixel structures can be selected Have different area sizes.

In summary, the display device of an embodiment of the present invention includes a first display panel and a second display panel. The first display panel includes a first light shielding pattern and a first pixel array layer. The first pixel array layer includes a plurality of first scan lines, a plurality of first data lines, and a plurality of first sub-pixel structures. The plurality of first scan lines and the plurality of first data lines are staggered to enclose a plurality of first display opening regions. The first light shielding pattern is located between the plurality of first display opening regions. Each of the first sub-pixel structures includes a first pixel electrode. The first display opening area is divided into a first driving pixel area where the first pixel electrode is located and a first blank pixel area where the first pixel electrode does not exist. The second display panel and the first display panel are stacked up and down. The second display panel includes a second pixel array layer. The second pixel array layer has a plurality of second display opening areas. One of the second display opening areas partially overlaps the first blank pixel area of one of the first display opening areas. Thereby, the display brightness of the display device can be increased, and the display quality of the display device can be improved.

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: display device 100: first display panel 110: first lower substrate 120: first pixel array layer 121: first scan line 122: first data line 124, 124A, 124B, 124C, 124X, 124Y, 124Z: First sub-pixel structure 124a: junction 124d: first driving pixel area 124o: first display opening area 124U, 224U: pixel structure 124w, 124wa, 124wb: first blank pixel area 124w1: first sub-blank Pixel area 124w2: second sub-blank pixel area 124wa': boundary 124wL: first length 1241: first pixel electrode 1241a: first boundary edge portion 1241a', 1241b': boundary edge 1241b: boundary edge portion 1241L: Second length 1242, 2242: active element 1243, 1243': first common electrode 1243o: opening 130: first display medium layer 140: first upper substrate 150: first polarizer 160: first light-shielding pattern 170: first Color filter pattern 200: second display panel 210: second lower substrate 220: second pixel array layer 221: scanning line 222: data line 224: second sub-pixel structure 224d: second driving pixel area 224o: Second display opening area 2241: second pixel electrode 2243: second common electrode 230: second display medium layer 240: second upper substrate 250: second polarizing plate 260: second shading pattern 270: second color filter Pattern x: first direction y: second direction

FIG. 1A is a schematic diagram of a display device according to an embodiment of the invention. 1B to 1C are schematic top views of a light shielding pattern and a pixel array layer of a display device according to an embodiment of the invention. 2A is a schematic top view of a light shielding pattern and a pixel array layer of a display device according to another embodiment of the invention. 2B is a schematic top view of a light shielding pattern and a pixel array layer of a display device according to another embodiment of the invention. 2C is a schematic top view of a pixel array layer of a display device according to still another embodiment of the invention. 3 is a schematic top view of a light shielding pattern and a pixel array layer of a display device according to another embodiment of the invention. 4 is a schematic top view of a light shielding pattern and sub-pixel structure of a display device according to another embodiment of the invention. 5 is a schematic top view of a light shielding pattern and sub-pixel structure of a display device according to still another embodiment of the invention. 6 is a schematic top view of a light shielding pattern and a pixel array layer of a display device according to another embodiment of the invention.

120: The first pixel array layer

121: first scan line

122: The first data line

124: The first sub-pixel structure

124d: first driving pixel area

124o: the first display opening area

124U: Pixel structure

124w: the first blank pixel area

1241: The first pixel electrode

1242: active component

1243: first common electrode

160: The first shading pattern

170: The first color filter pattern

x: first direction

y: second direction

Claims (20)

A display device includes: a first display panel including a first light shielding pattern and a first pixel array layer, the first pixel array layer including a plurality of first scan lines, a plurality of first data lines and a plurality of first In the sub-pixel structure, the first scan lines and the first data lines are staggered to enclose a plurality of first display opening regions, the first shading pattern is located between the first display opening regions, and the first Each of the sub-pixel structures includes a first pixel electrode, and the first display opening area is divided into a first driving pixel area where the first pixel electrode is located and a first blank picture where the first pixel electrode does not exist A pixel area; and a second display panel stacked on top of the first display panel, the second display panel including a second pixel array layer, the second pixel array layer having a plurality of second display opening areas, and wherein A second display opening area partially overlaps the first blank pixel area of one of the first display opening areas. The display device described in item 1 of the scope of patent application further includes: a first polarizing plate and a second polarizing plate, wherein the first display panel and the second display panel are located on the first polarizing plate and the second polarizing plate between. As for the display device described in claim 1, wherein the first light-shielding pattern extends between the individual first driving pixel regions of two adjacent first display opening regions, but between the two adjacent first The boundary between the individual first blank pixel areas of the display opening area is broken. The display device according to claim 1, wherein the first blank pixel area of one of the first display opening areas is divided into a first sub blank pixel area and a second sub blank pixel area And the first driving pixel area of the first display opening area is located between the first sub-blank pixel area and the second sub-blank pixel area. The display device according to claim 1, wherein the first pixel electrode of one of the first sub-pixel structures includes the first driving pixel area and the first blank pixel area The first boundary edge portion of the boundary, and the first boundary edge portion is adjacent to the first data from the first driving pixel area along the boundary between the first driving pixel area and the first blank pixel area The line extends to overlap the first shading pattern. The display device according to claim 1, wherein the first pixel electrode of one of the first sub-pixel structures includes the first driving pixel area and the first blank pixel area The first boundary edge portion of the boundary, the boundary between the first blank pixel area and the first boundary edge portion has a first length, the first boundary edge portion and the edge adjacent to the first blank pixel area It has a second length, and the second length is greater than the first length. The display device according to claim 1, wherein one of the first pixel structures further includes: a first common electrode, the first pixel electrode is disposed above the first common electrode, wherein The first common electrode has at least one opening, and the position of the opening corresponds to the corner of the first pixel electrode and is located at the boundary between the first driving pixel area and the first blank pixel area. As described in the first item of the scope of patent application, the first pixel electrode of each of the first sub-pixel structures has a boundary edge boundary with the corresponding first blank pixel area, and is adjacent to two The individual boundary edges of the individual first pixel electrodes of the first sub-pixel structure are not on the same straight line. According to the display device described in claim 1, wherein the first display panel further includes a first display medium layer, the second display panel further includes a second display medium layer, and the first display medium layer is located on the first display medium layer. In a display panel, the first display medium layer is driven by the first sub-pixel structures, the second display medium layer is located in the second display panel, and the second display medium layer is formed by the second sub-pictures Element structure driven. As for the display device described in item 1 of the scope of patent application, wherein three adjacent ones of the first sub-pixel structures constitute a pixel structure, and each of the three first sub-pixel structures in the pixel structure The total area of a display opening area is A, and the total area of the individual first blank pixel areas of the three first sub-pixel structures in the pixel structure is B, and B is 20% to 30% of A. As for the display device described in item 1 of the scope of patent application, wherein three adjacent ones of the first sub-pixel structures constitute a pixel structure, and each of the three first sub-pixel structures in the pixel structure The area of the first blank pixel area is different. According to the display device described in claim 1, wherein the first display panel further includes a plurality of first color filter patterns, and the first color filter patterns are respectively located in the first driving pixel regions, Not in the first blank pixel area. The display device according to claim 12, wherein the first color filter patterns include a first red filter pattern, a first blue filter pattern, and a first green filter pattern, and the first red filter pattern The filter pattern, the first blue filter pattern and the first green filter pattern are respectively located in three adjacent first driving pixel regions. The display device according to claim 1, wherein the second pixel array layer includes a plurality of second sub-pixel structures, and each of the second sub-pixel structures includes a second pixel electrode, The second display opening area is divided into a second driving pixel area where the second pixel electrode is located and a second blank pixel area where the second pixel electrode does not exist. As for the display device described in item 14 of the scope of patent application, three adjacent ones of the second sub-pixel structures constitute a pixel structure, and each of the three second sub-pixel structures in the pixel structure The total area of the second display opening area is C, and the total area of the individual second blank pixel areas of the three second sub-pixel structures in the pixel structure is D, which is 20% to 30% of C. As for the display device described in claim 14, wherein the areas of the individual second blank pixel regions of the three second sub-pixel structures in the pixel structure are different. The display device according to claim 14, wherein the second blank pixel area of one of the second display opening areas is divided into a third sub blank pixel area and a fourth sub blank pixel area And the second driving pixel area of the second display opening area is located between the third sub-blank pixel area and the fourth sub-blank pixel area. The display device according to claim 14, wherein the at least one of the second pixel structures further includes: a second common electrode, the second pixel electrode is disposed above the common electrode, wherein the The second common electrode has at least one opening, and the opening is located at the corner of the second pixel electrode and at the boundary between the second driving pixel area and the second blank pixel area. The display device according to claim 14, wherein the second display panel further includes a second light-shielding pattern, wherein the second light-shielding pattern extends on the individual second driving pixels of two adjacent second display opening regions Between the two adjacent second display opening areas, but at the junction between the individual second blank pixel areas of the two adjacent second display opening areas. The display device of claim 19, wherein the second pixel electrode of one of the second sub-pixel structures includes the second driving pixel area and the second blank pixel area The second boundary edge portion of the boundary, and the second boundary edge portion extends from the second driving pixel area along the boundary between the second driving pixel area and the second blank pixel area to overlap with the first 2. Shading patterns.

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