TW202127653A - Display apparatus - Google Patents

Abstract

A display apparatus includes a substrate, conductive structures, pixel structures, data lines and scan lines. The pixel structures are disposed on a first surface of the substrate and arranged in a pixel row. The data lines are disposed on the first surface of the substrate, and are electrically connected to transistors of the pixel structures of the pixel row. The scan lines are electrically connected to the transistors of the pixel structures of the pixel row. The pixel structures of the pixel row include a first pixel structure and a second pixel structure. The scan lines includes a first scan line and a second scan line arranged on a second surface of the substrate and arranged in a second direction. The conductive structures are disposed in through holes of the substrate. The first scan line and the second scan line are electrically connected to a transistor of the first pixel structure and a transistor of the second pixel structure through the conductive structures, respectively.

Description

Display device

The present invention relates to an optoelectronic device, and particularly relates to a display device.

The light emitting diode display device includes an active device substrate and a plurality of light emitting diode devices transferred on the active device substrate. Inheriting the characteristics of light-emitting diodes, light-emitting diode display devices have the advantages of power saving, high efficiency, high brightness, and fast response time. In addition, compared with organic light-emitting diode display devices, light-emitting diode display devices also have advantages such as easy color adjustment, long light-emitting life, and no image burn-in. Therefore, light-emitting diode display devices are regarded as the next generation of display technology.

The active device substrate of the light emitting diode display device includes a plurality of data lines, a plurality of scanning lines and a plurality of pixel driving circuits for driving the light emitting diode device. The data lines, scan lines, and pixel drive circuits include multiple lines made of multiple conductive layers, and multiple lines of different conductive layers have multiple intersections, resulting in an increase in the RC loading of the light-emitting diode display panel , The probability of line disconnection is also increased. In addition, the number of scan lines required by the light-emitting diode display device is large, which requires a considerable layout area, so that the resolution of the light-emitting diode display device cannot be easily improved. In order to improve the resolution of the light emitting diode display device, a demultiplexer can be used to electrically connect the scan line. In the case of using the demultiplexer, the data signal input to the demultiplexer needs to include a reset signal, so that the time for the pixel structure to be written by the pixel data signal is insufficient, and the display screen is prone to abnormalities.

The invention provides a display device with good performance.

A display device of the present invention includes a substrate, multiple conductive structures, multiple pixel structures, multiple data lines, and multiple scan lines. The substrate has a first surface, a second surface and a plurality of through holes, wherein the first surface is opposite to the second surface, and the plurality of through holes penetrate the first surface and the second surface. The plurality of conductive structures are respectively arranged in the plurality of through holes. A plurality of pixel structures are arranged on the first surface of the substrate and arranged in a pixel row along the first direction. Each pixel structure includes a transistor and a light-emitting element electrically connected to the transistor. A plurality of data lines are arranged on the first surface of the substrate, are arranged in a first direction, and are electrically connected to a plurality of transistors of a plurality of pixel structures in a pixel row. A plurality of scan lines are electrically connected to a plurality of transistors of a plurality of pixel structures of the pixel row, wherein the plurality of pixel structures of the pixel row include a first pixel structure and a second pixel structure, and a plurality of scan lines It includes a first scan line and a second scan line. The first scan line and the second scan line are arranged on the second surface of the substrate and are arranged in the second direction. The first scan line and the second scan line respectively pass through a plurality of conductive lines. The structure is electrically connected to the transistor of the first pixel structure and the transistor of the second pixel structure, and the first direction and the second direction are staggered.

In an embodiment of the present invention, each of the above-mentioned pixel structures further includes a capacitor, which is disposed on the first surface of the substrate, is electrically connected to the transistor of the pixel structure, and has a first electrode, a second electrode, and a transistor. An insulating layer located between the first electrode and the second electrode, wherein the first electrode of the capacitor of the pixel structure overlaps the scan line.

In an embodiment of the present invention, each of the above-mentioned pixel structures further includes a capacitor, which is disposed on the first surface of the substrate, is electrically connected to the transistor of the pixel structure, and has a first electrode, a second electrode, and a transistor. The insulating layer located between the first electrode and the second electrode, wherein the vertical projection of the first electrode of the pixel structure capacitor on the substrate surrounds a through hole.

In an embodiment of the present invention, each of the above-mentioned pixel structures further includes a capacitor, which is disposed on the first surface of the substrate, is electrically connected to the transistor of the pixel structure, and has a first electrode, a second electrode, and a transistor. In the insulating layer located between the first electrode and the second electrode, the vertical projection of the first electrode of the pixel structure capacitor on the substrate has a gap, and a through hole is located in the gap.

In an embodiment of the present invention, the thickness of the aforementioned first scan line is greater than the thickness of the data line.

In an embodiment of the present invention, the multiple pixel structures of the aforementioned pixel column further include a third pixel structure, the multiple scan lines further include a third scan line, and the third scan line is disposed on the first surface of the substrate And electrically connected to the transistor of the third pixel structure, and the line width of the first scan line is larger than the line width of the third scan line.

In an embodiment of the present invention, the multiple pixel structures of the aforementioned pixel column further include a third pixel structure, the multiple scan lines further include a third scan line, and the third scan line is disposed on the first surface of the substrate And electrically connected to the transistor of the third pixel structure, the light emitting element of the third pixel structure emits red light, and the light emitting element of the first pixel structure and the light emitting element of the second pixel structure emit blue and green light .

In an embodiment of the present invention, each of the above-mentioned pixel structures further includes a capacitor, which is disposed on the first surface of the substrate, is electrically connected to the transistor of the pixel structure, and has a first electrode, a second electrode, and a transistor. An insulating layer located between the first electrode and the second electrode. The plurality of pixel structures in the pixel column further includes a third pixel structure, and the plurality of scan lines further include a third scan line. The third scan line is disposed on the first surface of the substrate and is electrically connected to the third pixel structure The capacitance of the third pixel structure is greater than that of the first pixel structure.

In an embodiment of the present invention, each of the above-mentioned pixel structures further includes a capacitor, which is disposed on the first surface of the substrate, is electrically connected to the transistor of the pixel structure, and has a first electrode, a second electrode, and a transistor. An insulating layer located between the first electrode and the second electrode. The plurality of pixel structures in the pixel column further includes a third pixel structure, and the plurality of scan lines further include a third scan line. The third scan line is disposed on the first surface of the substrate and is electrically connected to the third pixel structure The area of the first electrode of the capacitor of the third pixel structure is larger than the area of the first electrode of the capacitor of the first pixel structure.

In an embodiment of the present invention, the light-emitting element of the third pixel structure described above emits red light, and the light-emitting element of the first pixel structure and the light-emitting element of the second pixel structure emit blue and green light.

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

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. As used herein, "connected" can refer to physical and/or electrical connection. Furthermore, "electrically connected" or "coupled" may mean that there are other elements between two elements.

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 a person of ordinary skill in the art, taking into account the measurement in question and the The specific amount of measurement-related error (ie, the limitation of the measurement system). For example, "about" can mean within one or more standard deviations of the stated value, or within ±30%, ±20%, ±10%, ±5%. Furthermore, "about", "approximately" or "substantially" as used herein can be based on optical properties, etching properties or other properties to select a more acceptable range of deviation or standard deviation, and not one standard deviation can be applied to all properties .

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 the present invention belongs. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted as having meanings consistent with their meanings in the context of related technologies and the present invention, and will not be interpreted as idealized or excessive The formal meaning, unless explicitly defined as such in this article.

FIG. 1 is a three-dimensional schematic diagram of a display device 10 according to an embodiment of the invention.

2 is a schematic cross-sectional view of a display device 10 according to an embodiment of the invention.

FIG. 3 is a schematic diagram of an equivalent circuit of a pixel structure SPX according to an embodiment of the present invention.

FIG. 4 is a perspective schematic diagram of the layout of the display device 10 according to an embodiment of the present invention.

Fig. 3 omits the capacitor C of Fig. 4.

FIG. 5 is a schematic cross-sectional view of the display device 10 according to an embodiment of the present invention drawn according to the section line A-A' of FIG. 4.

6 is a schematic cross-sectional view of the display device 10 according to an embodiment of the present invention drawn according to the section line B-B' of FIG. 4.

1, the display device 10 includes a substrate 110 having a first surface 110a and a second surface 110b opposite to each other. The first surface 110 a may also be referred to as the front surface of the substrate 110. The second surface 110b may also be referred to as the back surface of the substrate 110. For example, in this embodiment, the material of the substrate 110 may be glass, quartz, organic polymer, opaque/reflective material (for example, wafer, ceramic, or other applicable materials), or other applicable materials. Applicable materials.

Referring to FIGS. 1, 2 and 4, a plurality of pixel structures SPX are disposed on the first surface 110a of the substrate 110, and are arranged in a pixel row R along the first direction x.

3 and 4, each pixel structure SPX includes a light-emitting element LED and a pixel driving circuit DVC for driving the light-emitting element LED. The pixel driving circuit DVC includes a transistor T1, which is electrically connected to the light-emitting element LED. For example, in this embodiment, the light emitting element LED may be a micro light emitting diode element (μLED) that is transferred to the first surface 110a of the substrate 110. However, the present invention is not limited to this. In other embodiments, the light-emitting element LED may also be an organic light-emitting diode or other types of light-emitting elements.

In this embodiment, in addition to the transistor T1, the pixel driving circuit DVC may also include a transistor T2 and a capacitor C1. The first terminal T1a of the transistor T1 is electrically connected to a corresponding data line DL. The control terminal T1c is electrically connected to a corresponding scan line SL, the second terminal T1b of the transistor T1 is electrically connected to the control terminal T2c of the transistor T2, and the capacitor C1 is electrically connected to the second terminal T1b of the transistor T1 and The first end T2a of the transistor T2, the first end T2a of the transistor T2 is electrically connected to a power line (not shown) having a power supply potential VDD, and the second end T2b of the transistor T2 is electrically connected to the light emitting element LED The first electrode (not shown) and the second electrode (not shown) of the light-emitting element LED are electrically connected to a common line (not shown) with a reference potential VSS.

In short, in this embodiment, the pixel driving circuit DVC may include two transistors and one capacitor (2T1C). However, the present invention is not limited to this. The pixel driving circuit DVC may also include other transistors and/or other capacitors to form other structures, such as but not limited to: three transistors and one capacitor (3T1C), three transistors And two capacitors (3T2C), four transistors and one capacitor (4T1C), four transistors and two capacitors (4T2C), five transistors and one capacitor (5T1C), five transistors and two capacitors (5T2C), six transistors and two capacitors (6T2C), seven transistors and one capacitor (7T1C) and other structures.

3 and 4, the display device 10 further includes a plurality of data lines DL disposed on the first surface 110a of the substrate 110, arranged in the first direction x, and electrically connected to a plurality of pixel rows R Multiple transistors T1 in the pixel structure SPX.

For example, in this embodiment, the plurality of pixel structures SPX of the pixel row R includes a first pixel structure SPX1, a second pixel structure SPX2, and a third pixel structure sequentially arranged in the first direction x Structure SPX3, and the transistor T1 of the first pixel structure SPX1, the transistor T1 of the second pixel structure SPX2, and the transistor T1 of the third pixel structure SPX3 can be electrically connected to a plurality of data lines DL, but the present invention Not limited to this.

Referring to FIGS. 3 and 4, the display device 10 further includes a plurality of scan lines SL electrically connected to a plurality of transistors T1 of a plurality of pixel structures SPX of a pixel column R. Referring to FIGS. 1, 2 and 4, the substrate 110 has a plurality of through holes 112 penetrating through the first surface 110a and the second surface 110b. The display device 10 further includes a plurality of conductive structures 112s, which are respectively disposed in the plurality of through holes 112. The multiple pixel structures SPX of the pixel row R include a first pixel structure SPX1 and a second pixel structure SPX2. The plurality of scan lines SL includes a first scan line SL1 and a second scan line SL2. The first scan line SL1 and the second scan line SL2 are disposed on the second surface 110b of the substrate 110, and are arranged in a second direction y, where the first direction x and the second direction y are staggered. The first scan line SL1 and the second scan line SL2 located on the second surface 110b are respectively electrically connected to the first pixel located on the first surface 110a through the plurality of conductive structures 112s located in the plurality of through holes 112, respectively The transistor T1 of the structure SPX1 and the transistor T1 of the second pixel structure SPX2.

Referring to FIG. 4, the multiple pixel structures SPX of the pixel column R further include a third pixel structure SPX3. In this embodiment, the light-emitting element LED of the first pixel structure SPX1, the light-emitting element LED of the second pixel structure SPX2, and the light-emitting element LED of the third pixel structure SPX3 can be used to emit different first color lights, respectively. The second color light and the third color light, and the first pixel structure SPX1, the second pixel structure SPX2, and the third pixel structure SPX3 can form a pixel unit PX. In this embodiment, the first color light, the second color light, and the third color light are, for example, blue light, green light, and red light, but the invention is not limited thereto. The plurality of scan lines SL further includes a third scan line SL3 electrically connected to the third pixel structure SPX3. In this embodiment, the third scan line SL3 can also be disposed on the second surface 110b of the substrate 110, and is electrically connected to the third pixel on the first surface 110a through the conductive structure 112s in the through hole 112 Transistor T1 of structure SPX3.

In short, in this embodiment, all the scan lines SL can be selectively disposed on the second surface 110b of the substrate 110. However, the present invention is not limited to this. In other embodiments, part of the scan line SL is provided on the first surface 110a of the substrate 110, and another part of the scan line SL is provided on the second surface 110b of the substrate 110. The above will be illustrated in the following paragraphs with other diagrams.

Referring to FIGS. 1, 2 and 4, in this embodiment, the display device 10 may further include a gate driving circuit GOA electrically connected to a plurality of scan lines SL. In this embodiment, at least part of the components of the gate driving circuit GOA can be fabricated together with the transistor T1 of the pixel structure SPX. That is, in this embodiment, the gate driving circuit GOA can be an integrated gate driving circuit (Gate Driver on Array), and the transistor T1 of the pixel structure SPX is both disposed on the first surface 110a of the substrate 110 superior. 1 and 2, the substrate 110 further has a through hole 114, the display device 10 may further include a conductive structure 114s disposed in the through hole 114, and the gate driving circuit GOA on the first surface 110a of the substrate 110 can penetrate The conductive structure 114 s located in the through hole 114 is electrically connected to the scan line SL located on the second surface 110 b of the substrate 110.

4 and 5, in this embodiment, the first scan line SL1, the second scan line SL2, and the third scan line SL3 provided on the second surface 110b of the substrate 110 and the through holes provided on the substrate 110 The conductive structures 112s and 114s in 112 and 114 can be formed by electroplating, and the pixel structure SPX and the data line DL disposed on the first surface 110a of the substrate 110 can be formed by lithography technology. Therefore, in this embodiment, the line width W11 of the first scan line SL1, the line width W12 of the second scan line SL2, and the line width W13 of the third scan line SL3 are much larger than the line width W2 of the data line DL; The thickness T11 of the scan line SL1, the thickness T12 of the second scan line SL2, and the thickness T13 of the third scan line SL3 are much larger than the thickness T2 of the data line DL.

In this embodiment, based on the consideration of conductivity, the scan line SL, the data line DL, and the conductive structures 112s, 114s generally use metal materials, such as copper, titanium, aluminum, molybdenum, and silver. However, the present invention is not limited to this. According to other embodiments, the scan line SL, the data line DL, and the conductive structures 112s, 114s may also use other conductive materials.

Please refer to FIG. 4, in this embodiment, each pixel structure SPX further includes a capacitor C. The capacitor C of the pixel structure SPX is electrically connected to the transistor T1 of the pixel structure SPX. In FIG. 4, the capacitor C is electrically connected to the first terminal T1a of the transistor T1 as an example. However, the present invention is not limited to this. In other embodiments, the capacitor C can also be electrically connected to the transistor T1 in other ways.

4 and 6, the capacitor C is disposed on the first surface 110a of the substrate 110, and has a first electrode 121, a second electrode 122, and an insulating layer 123 between the first electrode 121 and the second electrode 122. In this embodiment, the transistor T1 has a semiconductor pattern T1d, one of the electrodes of the capacitor C (for example: the second electrode 122) and the semiconductor pattern T1d can be manufactured in the same process, and one of the electrodes of the capacitor C (for example, : The material of the second electrode 122) can be the same as the material of the semiconductor pattern T1d, but the invention is not limited to this.

4, it is worth noting that in this embodiment, the first electrode 121 of the capacitor C of each pixel structure SPX overlaps a scan line SL.

For example, in this embodiment, the first pixel structure SPX1, the second pixel structure SPX2, and the third pixel structure SPX3 of the pixel row R are sequentially arranged on the first surface of the substrate 110 along the first direction x On 110a, the transistor T1 of the first pixel structure SPX1, the transistor T1 of the second pixel structure SPX2, and the transistor T1 of the third pixel structure SPX3 are electrically connected to the first transistor T1 disposed on the second surface 110b. The scan line SL1, the second scan line SL2, and the third scan line SL3, the second scan line SL2, the first scan line SL1, and the third scan line SL3 are sequentially arranged along the second direction y, wherein the first pixel structure SPX1 The first electrode 121 of the capacitor C may overlap a bent portion SL1a of the first scan line SL1, and the first electrode 121 of the capacitor C of the second pixel structure SPX2 may overlap a branch portion SL2a of the second scan line SL2, and The first electrode 121 of the capacitor C of the third pixel structure SPX3 may overlap the other curved portion SL1b of the first scan line SL1.

In this embodiment, the vertical projection of the first electrode 121 of the capacitor C of each pixel structure SPX on the substrate 110 surrounds a through hole 112. In this way, the pixel structure SPX can more efficiently utilize the layout area of the first surface 110 a, thereby improving the resolution of the display device 10. In this embodiment, the vertical projection of the first electrode 121 of the capacitor C on the substrate 110 may partially surround a through hole 112; that is, the vertical projection of the first electrode 121 of the capacitor C on the substrate 110 may have an open type The gap 121a is located in the gap 121a, and the through hole 112 is located in the gap 121a. However, the present invention is not limited to this. In other embodiments, the vertical projection of the first electrode 121 of the capacitor C on the substrate 110 can also completely surround a through hole 112; that is, the first electrode 121 of the capacitor C The vertical projection on the substrate 110 may also have a closed hollow, and the through hole 112 may be located in the hollow.

It must be noted here that the following embodiments use the element numbers and part of the content of the foregoing embodiments, wherein the same numbers are used to represent 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.

FIG. 7 is a perspective schematic diagram of the layout of the display device 10A according to an embodiment of the present invention. The display device 10A of FIG. 7 is similar to the display device 10 of FIG. 4, and the difference between the two is: the third scan line SL3 of FIG. 7 is different from the third scan line SL3 of FIG. 4; the third pixel structure SPX3 of FIG. The capacitance C is different from the capacitance C of the third pixel structure SPX3 in FIG. 4.

Referring to FIG. 7, in this embodiment, part of the scan line SL is disposed on the first surface 110 a of the substrate 110, and another part of the scan line SL is disposed on the second surface 110 b of the substrate 110.

For example, in this embodiment, a plurality of pixel structures SPX of a pixel row R includes a first pixel structure SPX1, a second pixel structure SPX2, and a third pixel structure sequentially arranged in the first direction x. The pixel structure SPX3, the transistor T1 of the first pixel structure SPX1, the transistor T1 of the second pixel structure SPX2, and the transistor T1 of the third pixel structure SPX3 are electrically connected to the first scan line SL1 and the second scan respectively Line SL2 and the third scan line SL3. The difference from the embodiment in FIG. 4 is that in this embodiment, the first scan line SL1 and the second scan line SL2 are disposed on the second surface 110b of the substrate 110 (refer to FIG. 2), but the third scan line SL3 It is provided on the first surface 110a of the substrate 110.

Similarly, in this embodiment, the components (for example, the first scan line SL1 and the second scan line SL2) disposed on the second surface 110b of the substrate 110 are formed by electroplating, and the components disposed on the first surface 110b of the substrate 110 The components on the surface 110a (for example, the third scan line SL3) are formed by using lithography technology. Therefore, the line width W11 of the first scan line SL1 and the line width W12 of the second scan line SL2 are much larger than the line width W13 of the third scan line SL3. In this embodiment, the light-emitting element LED of the third pixel structure SPX3 (refer to FIG. 3) electrically connected to the third scan line SL3 with the smaller line width W13 emits red light, which is compared with the line widths W11 and W12. The light emitting element LED of the first pixel structure SPX1 and the light emitting element LED of the second pixel structure SPX2 that are electrically connected to the large first scan line SL1 and the second scan line SL2 emit blue and green light.

In addition, in this embodiment, the capacitance C of the third pixel structure SPX3 for emitting red light is greater than the capacitance C of the first pixel structure SPX1 and the second pixel structure SPX2 for emitting blue and green light. C.

For example, in this embodiment, in order to make the capacitance C of the third pixel structure SPX3 larger than the capacitance C of the first pixel structure SPX1 and the capacitance C of the second pixel structure SPX2, the third pixel structure SPX3 can be made The area of the first electrode 121 of the capacitor C is larger than the area of the first electrode 121 of the capacitor C of the first pixel structure SPX1 and the area of the first electrode 121 of the capacitor C of the second pixel structure SPX2, and/or the third The area of the second electrode 122 of the capacitor C of the pixel structure SPX3 is larger than the area of the second electrode 122 of the capacitor C of the first pixel structure SPX1 and the area of the second electrode 122 of the capacitor C of the second pixel structure SPX2. However, the present invention is not limited to this. In other embodiments, other methods may be used to make the capacitance C of the third pixel structure SPX3 greater than the capacitance C of the first pixel structure SPX1 and the capacitance C of the second pixel structure SPX2. .

The light-emitting element LED of the first pixel structure SPX1, the light-emitting element LED of the second pixel structure SPX2, and the light-emitting element LED of the third pixel structure SPX3 that emit different colors of light have different luminous efficiency and different driving currents. , Using capacitors C of different sizes to match the light-emitting element LED of the first pixel structure SPX1, the light-emitting element LED of the second pixel structure SPX2, and the light-emitting element LED of the third pixel structure SPX3, the display device 10A can have Good electrical and optical performance.

FIG. 8 is a perspective schematic diagram of the layout of the display device 10B according to an embodiment of the present invention. The display device 10B of FIG. 8 is similar to the display device 10 of FIG. 4, and the difference between the two is: the electrical connection between the data line DL and the pixel structure SPX in FIG. 8 is the same as that of the data line DL and the pixel structure SPX in FIG. The electrical connection is different.

Please refer to FIG. 8. Specifically, in this embodiment, two adjacent pixel structures SPX can be electrically connected to the same data line DL. Thereby, the number of data lines DL can be reduced, the layout area required for setting the data lines DL can be saved, and the resolution of the display device 10B can be further improved. In addition, the number of pins for electrically connecting the data driver chip to the multiple data lines DL can be reduced, and the purchase cost of the data driver chip required by the display device 10B can be reduced.

To sum up, in an embodiment of the present invention, at least part of the scan lines are provided on the second surface of the substrate, and the scan lines provided on the second surface of the substrate can be electrically conductive structures located in the through holes of the substrate. Connected to the pixel structure arranged on the first surface of the substrate. At least part of the scan lines may not need to occupy the layout area of the first surface of the substrate, and the first surface may have a larger layout area for the capacitance setting of the pixel driving circuit. In this way, the capacitance of the pixel driving circuit provided on the first surface of the substrate can be designed to be larger, so that the overall driving circuit of the display device is more stable.

In addition, since at least part of the scan lines are disposed on the second surface of the substrate, the distance between at least part of the scan lines and the data lines crossing it is large, and the distance between at least part of the scan lines and the data lines crossing it is large. The stray capacitance between them is small, which helps to reduce the RC load of the display device (RC loading) and stabilize the overall driving circuit of the display device.

More importantly, in an embodiment of the present invention, since at least part of the scan lines are provided on the second surface of the substrate with sufficient area, the first pixel structure and the second pixel structure of the pixel unit in the same pixel row The pixel structure and the third pixel structure can be electrically connected to the first scan line, the second scan line, and the third scan line, respectively. Therefore, when the display device is driven by the demultiplexer, the data signal input to the demultiplexer does not need to include a reset signal. Thereby, the time for each pixel structure to be written by the pixel data signal can be increased, thereby improving the electrical properties and optical performance of the display device.

10, 10A, 10B: display device 110: substrate 110a: first surface 110b: second surface 112, 114: Through hole 112s, 114s: conductive structure 121: first electrode 121a: gap 122: second electrode 123: Insulation layer A-A’, B-B’: cut line C: Capacitance DVC: Pixel drive circuit DL: Data line GOA: Gate drive circuit LED: light-emitting element PX: pixel unit R: pixel column SPX: Pixel structure SPX1: The first pixel structure SPX2: second pixel structure SPX3: third pixel structure SL: scan line SL1: the first scan line SL1a, SL1b: curved part SL2: second scan line SL2a: Branch SL3: Third scan line T1, T2, T3, T4, T6: Transistor T1a, T2a: first end T1b, T2b: second end T1c, T2c: control terminal T1d: semiconductor pattern T11, T12, T13, T2: thickness VDD: power supply potential VSS: Reference potential W11, W12, W13, W2: line width x: first direction y: second direction

FIG. 1 is a three-dimensional schematic diagram of a display device 10 according to an embodiment of the invention. 2 is a schematic cross-sectional view of a display device 10 according to an embodiment of the invention. FIG. 3 is a schematic diagram of an equivalent circuit of a pixel structure SPX according to an embodiment of the present invention. FIG. 4 is a perspective schematic diagram of the layout of the display device 10 according to an embodiment of the present invention. FIG. 5 is a schematic cross-sectional view of the display device 10 according to an embodiment of the present invention drawn according to the section line A-A' of FIG. 4. 6 is a schematic cross-sectional view of the display device 10 according to an embodiment of the present invention drawn according to the section line B-B' of FIG. 4. FIG. 7 is a perspective schematic diagram of the layout of the display device 10A according to an embodiment of the present invention. FIG. 8 is a perspective schematic diagram of the layout of the display device 10B according to an embodiment of the present invention.

10: Display device

110: substrate

110a: first surface

112: Through hole

121: first electrode

121a: gap

122: second electrode

A-A’, B-B’: cut line

C: Capacitance

DL: Data line

PX: pixel unit

R: pixel column

SPX: Pixel structure

SPX1: The first pixel structure

SPX2: second pixel structure

SPX3: third pixel structure

SL: scan line

SL1: the first scan line

SL1a, SL1b: curved part

SL2: second scan line

SL2a: Branch

SL3: Third scan line

T1: Transistor

T1a: first end

T1b: second end

T1c: Control terminal

T1d: semiconductor pattern

W11, W12, W13, W2: line width

x: first direction

y: second direction

Claims (10)

A display device includes: A substrate having a first surface, a second surface and a plurality of through holes, wherein the first surface is opposite to the second surface, and the through holes penetrate the first surface and the second surface; A plurality of conductive structures are respectively arranged in the through holes; A plurality of pixel structures are arranged on the first surface of the substrate and arranged in a pixel row along a first direction. Each of the pixel structures includes a transistor and electrically connected to the transistor A light-emitting element; A plurality of data lines are arranged on the first surface of the substrate, are arranged in the first direction, and are electrically connected to a plurality of transistors of the pixel structure of the pixel row; and A plurality of scan lines are electrically connected to the transistors of the pixel structures of the pixel row, wherein the pixel structures of the pixel row include a first pixel structure and a second pixel structure The scan lines include a first scan line and a second scan line. The first scan line and the second scan line are arranged on the second surface of the substrate and arranged in a second direction. A scan line and the second scan line are respectively electrically connected to the transistor of the first pixel structure and the transistor of the second pixel structure through the conductive structures, and the first direction and the second pixel structure Staggered directions. The display device according to claim 1, wherein each pixel structure further includes: A capacitor is disposed on the first surface of the substrate, is electrically connected to the transistor of the pixel structure, and has a first electrode, a second electrode, and a capacitor located between the first electrode and the second electrode. An insulating layer in between, in which the first electrode of the capacitor of the pixel structure overlaps a scan line. The display device according to claim 1, wherein each pixel structure further includes: A capacitor is disposed on the first surface of the substrate, is electrically connected to the transistor of the pixel structure, and has a first electrode, a second electrode, and a capacitor located between the first electrode and the second electrode. An insulating layer in between, wherein a vertical projection of the first electrode of the capacitor of the pixel structure on the substrate surrounds a through hole. The display device according to claim 1, wherein each pixel structure further includes: A capacitor is disposed on the first surface of the substrate, is electrically connected to the transistor of the pixel structure, and has a first electrode, a second electrode, and a capacitor located between the first electrode and the second electrode. A vertical projection of the first electrode of the capacitor of the pixel structure on the substrate has a notch, and a through hole is located in the notch. The display device according to claim 1, wherein the thickness of the first scan line is greater than the thickness of a data line. The display device according to claim 1, wherein the pixel structures of the pixel column further include a third pixel structure, the scan lines further include a third scan line, and the third scan line is disposed on the The first surface of the substrate is electrically connected to the transistor of the third pixel structure, and the line width of the first scan line is greater than the line width of the third scan line. The display device according to claim 1, wherein the pixel structures of the pixel column further include a third pixel structure, the scan lines further include a third scan line, and the third scan line is disposed on the On the first surface of the substrate and electrically connected to the transistor of the third pixel structure, the light emitting element of the third pixel structure emits red light, and the light emitting element and the light emitting element of the first pixel structure The light-emitting element of the second pixel structure emits blue and green light. The display device according to claim 1, wherein each pixel structure further includes: A capacitor is disposed on the first surface of the substrate, is electrically connected to the transistor of the pixel structure, and has a first electrode, a second electrode, and a capacitor located between the first electrode and the second electrode. An insulating layer between; The pixel structures of the pixel column further include a third pixel structure, the scan lines further include a third scan line, the third scan line is disposed on the first surface of the substrate and is electrically connected To the transistor of the third pixel structure, and the capacitance of the third pixel structure is greater than the capacitance of the first pixel structure. The display device according to claim 1, wherein each pixel structure further includes: A capacitor is disposed on the first surface of the substrate, is electrically connected to the transistor of the pixel structure, and has a first electrode, a second electrode, and a capacitor located between the first electrode and the second electrode. An insulating layer between; The pixel structures of the pixel column further include a third pixel structure, the scan lines further include a third scan line, the third scan line is disposed on the first surface of the substrate and is electrically connected To the transistor of the third pixel structure, and the area of the first electrode of the capacitor of the third pixel structure is larger than the area of the first electrode of the capacitor of the first pixel structure. The display device according to claim 8 or 9, wherein the light-emitting element of the third pixel structure emits red light, and the light-emitting element of the first pixel structure and the light-emitting element of the second pixel structure emit Blue and green light.

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