TWI828588B - Transmissive display panel - Google Patents

Abstract

A transmissive display panel includes a substrate and display units located above the substrate. Each display unit includes peripheral pixel structures, a central pixel structure, two first circuit structures, two second circuit structures and an extension circuit structure. The two first circuit structures are respectively electrically connected to a corresponding row of two row of a part of the peripheral pixel structures arranged along a first direction. The two second circuit structures are respectively electrically connected to a corresponding row of two row of a part of the peripheral pixel structures arranged along a second direction. The two first circuit structures and the two second circuit structures surround a continuous transmissive area. Each extension circuit structure electrically connects a corresponding central pixel structure to a corresponding first circuit structure and a corresponding second circuit structure.

Description

Transmissive display panel

The invention relates to a transmissive display panel.

A transmissive display panel is a display panel that has the functions of transmitting light and displaying images at the same time. When using a transmissive display panel, the user can not only see the image displayed on the transmissive display panel, but also see the situation behind the display panel through the display panel. Therefore, transmissive display panels are often used in windows or other objects that need to transmit light.

Generally speaking, the pixel structure in a display panel includes a non-penetrating area for line layout and a penetrating area without line layout. In order to improve the resolution of the display screen, the size of the pixel structure in the display panel needs to be reduced. However, reducing the size of the pixel structure will cause light to be easily diffracted due to opaque lines after passing through the transmissive display panel.

At least one embodiment of the present invention provides a transmissive display panel, which includes a substrate and a plurality of display units located on the substrate. Each display unit includes a plurality of peripheral pixel structures, at least one central pixel structure, two first line structures, two second line structures, and at least one extension line structure. The peripheral pixel structures are arranged in an array with the central pixel structure, and the peripheral pixel structures are arranged on the periphery of the central pixel structure. The two first circuit structures extend along the first direction, and part of the peripheral pixel structures are arranged in two rows along the first direction, and the two first circuit structures are respectively electrically connected to the two first circuit structures arranged in two rows along the first direction. The corresponding row in the surrounding pixel structure of the row part. The two second line structures extend along the second direction, part of the peripheral pixel structures are arranged in two rows along the second direction, and the two second line structures are respectively electrically connected to the two second line structures arranged in two rows along the second direction. The corresponding row in the surrounding pixel structure of the row part. The two first circuit structures and the two second circuit structures surround a continuous penetration area. Each of the extended line structures electrically connects a corresponding one of the central pixel structures to a corresponding one of the two first line structures and a corresponding one of the two second line structures. Each of the extended line structures is respectively connected to a corresponding one of the two first line structures and/or each of the extended line structures is respectively connected to a corresponding one of the two second line structures. A plurality of via holes are electrically connected. The distance between the via hole and the central pixel structure is greater than the distance between the via hole and the surrounding pixel structure.

1A is a schematic top view of a transmissive display panel according to an embodiment of the present invention. FIG. 1B is a schematic top view of the display unit of the transmissive display panel of FIG. 1A . Figure 2 is a partial cross-sectional schematic view of the display unit of Figure 1B. Figure 2 corresponds to the positions of line A-A' and line B-B' in Figure 1B. Please refer to FIG. 1A, 1B and FIG. 2. The transmissive display panel 1 has a display area DA, and the transmissive display panel 1 optionally has a non-display area NDA. The non-display area NDA is located outside the display area DA.

There are a plurality of display units 10 in the display area DA. Specifically, the transmissive display panel 1 includes a substrate SB and a plurality of display units 10 located on the substrate SB, where the display units 10 are located in the display area DA.

The transmissive display panel 1 includes multiple conductive layers and multiple insulating layers located on the substrate SB. For example, the transmissive display panel 1 includes a first conductive layer M1, a second conductive layer M2, a third conductive layer M3, a fourth conductive layer M4, a first insulating layer I1, a second insulating layer I2, and a third insulating layer. layer I3, the fourth insulating layer I4 and the fifth insulating layer I5, but the invention is not limited thereto. In other embodiments, the transmissive display panel 1 further includes more conductive layers and more insulating layers. In this embodiment, the first insulating layer I1, the second insulating layer I2, the first conductive layer M1, the third insulating layer I3, the second conductive layer M2, the fourth insulating layer I4, the third conductive layer M3, the fifth The insulating layer I5 and the fourth conductive layer M4 are sequentially located on the substrate SB, but the invention is not limited thereto. In other embodiments, the stacking sequence of the conductive layer and the insulating layer can be adjusted according to actual needs.

Referring to FIG. 1B , each display unit 10 includes a plurality of peripheral pixel structures 100P and at least one central pixel structure 100C.

The peripheral pixel structures 100P and the central pixel structure 100C are arranged in an array, and the peripheral pixel structures 100P are arranged on the periphery of the central pixel structure 100C. In this embodiment, the number of peripheral pixel structures 100P in each display unit 10 is eight, and the number of central pixel structures 100C is one. Eight peripheral pixel structures 100P surround a central pixel structure 100C.

Please refer to FIG. 1B and FIG. 2 . In this embodiment, the central pixel structure 100C and the peripheral pixel structure 100P include the same structure and the same shape. For example, the central pixel structure 100C and the peripheral pixel structure 100P each include a plurality of light-emitting elements 110 and a pixel circuit 120 electrically connected to the light-emitting elements 110. The light-emitting elements 110 are, for example, micro light-emitting diodes, mini-LEDs, etc. Diodes, organic light-emitting diodes, etc. The pixel circuit 120 may optionally include a plurality of thin film transistors, where the thin film transistors may be any type of thin film transistor, such as a top gate thin film transistor, a bottom gate thin film transistor, or a double gate thin film transistor. Transistors, etc. In some embodiments, each of the central pixel structure 100C and the peripheral pixel structure 100P includes light-emitting elements 110 of different colors, such as red light-emitting elements, green light-emitting elements and blue light-emitting elements, so that the transmissive display panel 1 can display a color screen.

In this embodiment, the thin film transistor in the pixel circuit 120 includes a semiconductor channel 121, a gate 122, a first source/drain 123 and a second source/drain 124. The first insulating layer I1 is located on the substrate SB. The semiconductor channel 121 is located on the first insulating layer I1. The second insulating layer I2 is located on the semiconductor channel 121 . The gate 122 is located on the second insulating layer I2 and overlaps the semiconductor channel 121 . The third insulating layer I3 and the fourth insulating layer I4 are located on the gate 122 . The first source/drain 123 and the second source/drain 124 are located on the fourth insulating layer I4 and are electrically connected to the semiconductor channel 121. The fifth insulating layer I5 is located on the first source/drain 123 and the second source/drain 124 .

In this embodiment, the pixel circuit 120 further includes a first electrode 126 and a second electrode 127 . The first electrode 126 and the second electrode 127 are located on the fifth insulating layer I5. The first electrode 126 is electrically connected to the light-emitting diode 110 and the second source/drain 124 , and the second electrode 127 is electrically connected to the light-emitting diode 110 . In some embodiments, one of the first electrode 126 and the second electrode 127 is electrically connected to the anode of the light-emitting diode 110 , and the other is electrically connected to the cathode of the light-emitting diode 110 .

In this embodiment, the gate 122 belongs to the first conductive layer M1, the first source/drain 123 and the second source/drain 124 belong to the third conductive layer M3, and the first electrode 126 and the second electrode 127 belong to The fourth conductive layer M4, but the present invention is not limited thereto. In other embodiments, the positions of the gate 122 , the first source/drain 123 and the second source/drain 124 can be adjusted according to actual needs, so that the gate 122 is outside the first conductive layer M1 Other conductive layers, and the first source/drain 123 and the second source/drain 124 belong to other conductive layers other than the third conductive layer M3.

In FIG. 1B , the conductors located at different conductive layers in the first circuit structures 200A, 200B, the second circuit structures 300A, 300B and the extended circuit structure 400 are represented by different filling patterns. The conductors represented by different filling patterns can respectively belong to The first conductive layer M1, the second conductive layer M2, the third conductive layer M3, the fourth conductive layer M4 or other conductive layers. Wires belonging to different conductive layers can be electrically connected to each other through conductive holes, wherein the conductive holes pass through one or more insulating layers between the conductive layers.

Please refer to FIG. 1B , each display unit 10 further includes two first circuit structures 200A, 200B, two second circuit structures 300A, 300B and at least one extended circuit structure 400 .

The two first line structures 200A, 200B extend along the first direction D1. Each of the first line structures 200A and 200B includes a plurality of first scan lines 210 and a plurality of second scan lines 220 . In this embodiment, some of the peripheral pixel structures 100P are arranged in two rows along the first direction D1, and the two first line structures 200A and 200B are respectively electrically connected to the two rows arranged along the first direction D1. Part of the surrounding pixel structure corresponding to a row in 100P. For example, the first scan line 210 in the first circuit structure 200A is electrically connected to the pixel circuit 120 of the peripheral pixel structure 100P arranged along the first direction D1 and located in the bottom row, and the first circuit structure 200B The first scan line 210 in is electrically connected to the pixel circuit 120 arranged along the first direction D1 and located in the uppermost row of the peripheral pixel structure 100P. In this embodiment, the second scan line 220 of the first circuit structure 200A bypasses the pixel circuit 120 of the peripheral pixel structure 100P arranged along the first direction D1 and located in the bottom row, and the first circuit structure 200B The second scan line 220 bypasses the pixel circuits 120 of the peripheral pixel structure 100P arranged along the first direction D1 and located in the uppermost row.

The two second circuit structures 300A, 300B extend along the second direction D2. The second line structures 300A and 300B each include a plurality of first data lines 310 and a plurality of second data lines 320 . In this embodiment, some of the peripheral pixel structures 100P are arranged in two rows along the second direction D2, and the two second line structures 300A and 300B are respectively electrically connected to the two rows arranged along the second direction D2. Part of the surrounding pixel structure corresponding to a row in 100P. For example, the first data line 310 in the second circuit structure 300A is electrically connected to the pixel circuit 120 of the peripheral pixel structure 100P arranged along the second direction D2 and located in the leftmost row, and the second circuit structure 300B The first data line 310 in is electrically connected to the pixel circuit 120 arranged along the second direction D2 and located in the rightmost row of the peripheral pixel structure 100P. In this embodiment, the second data line 320 in the second circuit structure 300A bypasses the pixel circuit 120 of the peripheral pixel structure 100P arranged along the second direction D2 and located in the leftmost row, while the second circuit structure 300B The second data line 320 bypasses the pixel circuits 120 of the peripheral pixel structure 100P arranged along the second direction D2 and located in the rightmost row.

The first line structures 200A, 200B and the second line structures 300A, 300B surround a continuous penetration area TR. More specifically, in the area surrounded by the first circuit structures 200A, 200B and the second circuit structures 300A, 300B, there is no light-transmitting component that will divide the penetration region TR into a plurality of small blocks.

The extended circuit structure 400 is electrically connected to the central pixel structure 100C, extends outward from the position of the central pixel structure 100C, and is electrically connected to a corresponding one of the first circuit structures 200A, 200B and the second circuit structures 300A, 300B. The corresponding one. In this embodiment, the extension line structure 400 extends outward from one side of its corresponding central pixel structure 100C. In this embodiment, the extended circuit structure 400 electrically connects the central pixel structure 100C to the first circuit structure 200A and the second circuit structure 300A. For example, the extension line structure 400 includes a plurality of first extension lines 410 and a plurality of second extension lines 420, wherein the first extension lines 410 are electrically connected to the second scan lines 220 in the first line structure 200A, and The second extension lines 420 are respectively electrically connected to the second data lines 320 in the second line structure 300A.

In some embodiments, the extended circuit structure 400 and the first circuit structure 200A and/or the extended circuit structure 400 and the second circuit structure 300A are electrically connected through a plurality of via holes. For example, the first extension line 410 and the second scan line 220 belong to different conductive layers, so the first extension line 410 and the second scan line 220 are electrically connected through the via hole 412 . For example, the second extension line 420 and the second data line 320 belong to different conductive layers, so the second extension line 420 and the second data line 320 are electrically connected through the via hole 422 . In some embodiments, the distance between the via holes 412 and 422 and the central pixel structure 100C is greater than the distance between the via holes 412 and 422 and the peripheral pixel structure 100P. By concentrating the via holes 412 and 422 on the periphery of the display unit 10, the area of the penetration region TR can be increased.

In this embodiment, among the three peripheral pixel structures 100P arranged in the second direction D2, the middle peripheral pixel structure 100P is electrically connected to a plurality of first signal lines 510 and via holes 512. An extension line 410 is electrically connected to the plurality of second scan lines 220 in the first line structure 200A through the plurality of first extension lines 410. In the embodiment of FIG. 1B , the peripheral pixel structure 100P located in the middle of the left side of the display unit 10 is electrically connected to the second scan line 220 through the first extension line 410 of the display unit 10 itself, and the peripheral pixel structure 100P located in the middle of the right side The pixel structure 100P is electrically connected to the second scan line 220 through the first extension lines of other display units on the right.

In this embodiment, among the three peripheral pixel structures 100P arranged in the first direction D1, the middle peripheral pixel structure 100P is electrically connected to the second peripheral pixel structure 100P through a plurality of second signal lines 520 and via holes 522. The second data line 320 in the line structure 300A. In the embodiment of FIG. 1B , the second signal line 520 extends along the first direction D1 and is disposed close to the first circuit structure 200A or the first circuit structure 200B.

In some embodiments, each display unit 10 further includes a black matrix (not shown), which shields the two first circuit structures 200A, 200B, the two second circuit structures 300A, 300B and the extended circuit structure 400, and The black matrix shields part of the central pixel structure 100C and part of the peripheral pixel structure 100P, and exposes the light-emitting element 110 of the central pixel structure 100C, the light-emitting element 110 of the peripheral pixel structure 100P and the penetration region TR. In this embodiment, the penetration region TR is C-shaped (view FIG. 1B upside down). In this embodiment, the extension line structure 400 extends outward from a single corner or a single side of the central pixel structure 100C, so that at least three sides (the upper side, the lower side, and the right side in FIG. 1B ) of the central pixel structure 100C are covered. Surrounded by penetration zone TR. In some embodiments, the penetration region TR is arranged along the shape of the innermost conductor such that a portion of the penetration region TR is located horizontally between the bending regions of the innermost conductor. For example, the second scan line 220 and/or the second data line 320 have multiple bending areas, and the penetration area TR extends to the innermost second scan line 220 and/or the phase of the second data line 320 . Between adjacent bending areas, the partial penetration area TR is horizontally located between the two bending areas of the innermost second scan line 220 and/or the second data line 320 .

Based on the above, through the arrangement of the extended line structure 400, the transmission region TR can have a larger area, thereby improving the problem of diffraction of light after passing through the transmission display panel 1.

FIG. 3 is a schematic top view of a display unit of a transmissive display panel according to an embodiment of the present invention. It must be noted here that the embodiment of Figure 3 follows the component numbers and part of the content of the embodiment of Figures 1 to 2, where the same or similar numbers are used to represent the same or similar elements, and references to the same technical content are omitted. instruction. For descriptions of omitted parts, reference may be made to the foregoing embodiments and will not be described again here.

The main difference between the display unit 20 of FIG. 3 and the display unit 10 of FIG. 1B is that in the display unit 20, the pixel circuit 120 of the central pixel structure 100C and the pixel circuit 120 of the peripheral pixel structure 100P include different shapes.

Please refer to FIG. 3 . In the display unit 20 , the pixel circuit 120 of the central pixel structure 100C is moved as close as possible to the position of the extended circuit structure 400 , thereby further increasing the area of the penetration region TR.

FIG. 4 is a schematic top view of a display unit of a transmissive display panel according to an embodiment of the present invention. It must be noted here that the embodiment of Figure 4 follows the component numbers and part of the content of the embodiment of Figures 1 to 2, where the same or similar numbers are used to represent the same or similar elements, and references to the same technical content are omitted. instruction. For descriptions of omitted parts, reference may be made to the foregoing embodiments and will not be described again here.

The main difference between the display unit 30 of FIG. 4 and the display unit 10 of FIG. 1B is that in the display unit 30, the number of peripheral pixel structures 100P of 30 in each display unit is twelve, and the number of central pixel structures 100C is for four.

Referring to FIG. 4 , the peripheral pixel structures 100P and the central pixel structure 100C are arranged in an array, and the peripheral pixel structures 100P are arranged on the periphery of the central pixel structure 100C. In this embodiment, the central pixel structure 100C and the peripheral pixel structure 100P include the same structure and the same shape. For example, the central pixel structure 100C and the peripheral pixel structure 100P each include a plurality of light-emitting elements 110 and a pixel circuit 120 electrically connected to the light-emitting elements 110 .

In FIG. 4 , the conductors located at different conductive layers in the first circuit structures 200A, 200B, the second circuit structures 300A, 300B and the extended circuit structure 400 are represented by different filling patterns. The conductors represented by different filling patterns can respectively belong to The first conductive layer, the second conductive layer, the third conductive layer, the fourth conductive layer or other conductive layers. Wires belonging to different conductive layers can be electrically connected to each other through conductive holes, wherein the conductive holes pass through one or more insulating layers between the conductive layers.

Please refer to FIG. 4 , each display unit 30 includes two first circuit structures 200A, 200B, two second circuit structures 300A, 300B and four extended circuit structures 400A, 400B, 400C, 400D.

The two first line structures 200A, 200B extend along the first direction D1. Each of the first line structures 200A and 200B includes a plurality of first scan lines 210 and a plurality of second scan lines 220 . In this embodiment, some of the peripheral pixel structures 100P are arranged in two rows along the first direction D1, and the two first line structures 200A and 200B are respectively electrically connected to the two rows arranged along the first direction D1. Part of the surrounding pixel structure corresponding to a row in 100P. For example, the first scan line 210 in the first circuit structure 200A is electrically connected to the pixel circuit 120 of the peripheral pixel structure 100P arranged along the first direction D1 and located in the bottom row, and the first circuit structure 200B The first scan line 210 in is electrically connected to the pixel circuit 120 arranged along the first direction D1 and located in the uppermost row of the peripheral pixel structure 100P. The second scan line 220 in the first circuit structure 200A bypasses the pixel circuit 120 of the peripheral pixel structure 100P arranged along the first direction D1 and located in the bottom row, while the second scan line 220 in the first circuit structure 200B 220 bypasses the pixel circuits 120 of the peripheral pixel structures 100P arranged along the first direction D1 and located in the uppermost row.

The two second circuit structures 300A, 300B extend along the second direction D2. The second line structures 300A and 300B each include a plurality of first data lines 310 and a plurality of second data lines 320 . In this embodiment, some of the peripheral pixel structures 100P are arranged in two rows along the second direction D2, and the two second line structures 300A and 300B are respectively electrically connected to the two rows arranged along the second direction D2. Part of the surrounding pixel structure corresponding to a row in 100P. For example, the first data line 310 in the second circuit structure 300A is electrically connected to the pixel circuit 120 of the peripheral pixel structure 100P arranged along the second direction D2 and located in the leftmost row, and the second circuit structure 300B The first data line 310 in is electrically connected to the pixel circuit 120 arranged along the second direction D2 and located in the rightmost row of the peripheral pixel structure 100P. The second data line 320 in the second circuit structure 300A bypasses the pixel circuit 120 of the peripheral pixel structure 100P arranged along the second direction D2 and located in the leftmost row, while the second data line 320 in the second circuit structure 300B 320 bypasses the pixel circuits 120 of the peripheral pixel structure 100P arranged along the second direction D2 and located in the rightmost row.

The first line structures 200A, 200B and the second line structures 300A, 300B surround a continuous penetration area TR. More specifically, in the area surrounded by the first circuit structures 200A, 200B and the second circuit structures 300A, 300B, there is no light-transmitting component that will divide the penetration region TR into a plurality of small blocks.

The four extended circuit structures 400A, 400B, 400C, and 400D are respectively electrically connected to the four central pixel structures 100C, and respectively extend outward from the positions of the four central pixel structures 100C, and are each electrically connected to the first circuit structure 200A. , the corresponding one of 200B and the corresponding one of the second line structure 300A, 300B. In this embodiment, each of the extension line structures 400A, 400B, 400C, and 400D extends outward from one side of its corresponding central pixel structure 100C. In this embodiment, the extended circuit structures 400A and 400C respectively extend from the corresponding central pixel structure 100C to the second circuit structure 300A, and the extended circuit structures 400B and 400D respectively extend from the corresponding central pixel structure 100C to the second circuit structure 300A. Two line structure 300B extends. In this embodiment, the extended circuit structure 400A electrically connects one of the central pixel structures 100C (the central pixel structure 100C located in the lower left corner) to the first circuit structure 200A and the second circuit structure 300A. The extended circuit structure 400B electrically connects one of the central pixel structures 100C (the central pixel structure 100C located in the lower right corner) to the first circuit structure 200A and the second circuit structure 300B. The extended circuit structure 400C electrically connects one of the central pixel structures 100C (the central pixel structure 100C located in the upper left corner) to the first circuit structure 200B and the second circuit structure 300A. The extended circuit structure 400D electrically connects one of the central pixel structures 100C (the central pixel structure 100C located in the upper right corner) to the first circuit structure 200B and the second circuit structure 300B. For example, the extension line structures 400A, 400B, 400C, and 400D each include a plurality of first extension lines 410 and a plurality of second extension lines 420, wherein the first extension lines 410 are electrically connected to the first line structure 200A and the second extension line 420 respectively. A second scan line 220 of a corresponding one of the circuit structures 200B, and the second extension circuit 420 is electrically connected to the second data of the corresponding one of the second circuit structure 300A and the second circuit structure 300B respectively. Line 320.

In some embodiments, between the extended circuit structures 400A, 400B, 400C, 400D and the first circuit structures 200A, 200B and/or between the extended circuit structures 400A, 400B, 400C, 400D and the second circuit structures 300A, 300B. A plurality of via holes are electrically connected. For example, the first extension line 410 and the second scan line 220 belong to different conductive layers, so the first extension line 410 and the second scan line 220 are electrically connected through the via hole 412 . For example, the second extension line 420 and the second data line 320 belong to different conductive layers, so the second extension line 420 and the second data line 320 are electrically connected through the via hole 422 . In some embodiments, the distance between the via holes 412 and 422 and the central pixel structure 100C is greater than the distance between the via holes 412 and 422 and the peripheral pixel structure 100P. By concentrating the via holes 412 and 422 on the periphery of the display unit 30, the area of the penetration region TR can be increased.

In this embodiment, among the four peripheral pixel structures 100P arranged in the second direction D2, the two peripheral pixel structures 100P in the middle are electrically connected through a plurality of first signal lines 510 and via holes 512. The first extension lines 410 are in turn electrically connected to the plurality of second scan lines 220 in the corresponding one of the first line structure 200A and the first line structure 200B through the plurality of first extension lines 410 .

In this embodiment, among the four peripheral pixel structures 100P arranged in the first direction D1, the central peripheral pixel structure 100P is electrically connected to the second peripheral pixel structure 100P through a plurality of second signal lines 520 and via holes 522. The second data line 320 in the corresponding one of the line structure 300A and the second line structure 300B. In the embodiment of FIG. 4 , the second signal line 520 extends along the first direction D1 and is disposed close to the first circuit structure 200A or the first circuit structure 200B.

In some embodiments, each display unit 30 further includes a black matrix (not shown), which shields two first circuit structures 200A, 200B, two second circuit structures 300A, 300B and at least one extension circuit structure 400A. , 400B, 400C, 400D, and the black matrix covers part of the central pixel structure 100C and part of the peripheral pixel structure 100P, and exposes the light-emitting element 110 of the central pixel structure 100C, the light-emitting element 110 of the peripheral pixel structure 100P, and the penetration District TR. In this embodiment, the penetration area TR is king-shaped. In this embodiment, the extended line structures 400A, 400B, 400C, and 400D respectively extend outward from a single corner or a single side of the corresponding central pixel structure 100C, so that at least three sides of each central pixel structure 100C are penetrated. surrounded by transparent zone TR.

Based on the above, through the arrangement of the extended line structures 400A, 400B, 400C, and 400D, the transmission region TR can have a larger area, thereby improving the problem of diffraction of light after passing through the transmission display panel.

FIG. 5 is a schematic top view of a display unit of a transmissive display panel according to an embodiment of the present invention. It must be noted here that the embodiment of FIG. 5 follows the component numbers and part of the content of the embodiment of FIG. 4 , where the same or similar numbers are used to represent the same or similar elements, and descriptions of the same technical content are omitted. For descriptions of omitted parts, reference may be made to the foregoing embodiments and will not be described again here.

The main difference between the display unit 40 of FIG. 5 and the display unit 30 of FIG. 4 is that in the display unit 30, the extended line structures 400A, 400B, 400C, and 400D respectively extend from the corresponding central pixel structure 100C to the corresponding second line structure. 300A, 300B extend, and in the display unit 40, the extended line structures 400A, 400B, 400C, and 400D respectively extend from the corresponding central pixel structure 100C to the corresponding first line structures 200A, 200B.

Please refer to Figure 5. The four extended circuit structures 400A, 400B, 400C, and 400D respectively extend outward from the positions of the four central pixel structures 100C, and are each electrically connected to a corresponding one of the first circuit structures 200A, 200B and Corresponding one of the second line structures 300A, 300B. In this embodiment, each of the extension line structures 400A, 400B, 400C, and 400D extends outward from one side of its corresponding central pixel structure 100C. In this embodiment, the extended circuit structures 400A and 400B respectively extend from the corresponding central pixel structure 100C to the first circuit structure 200A, and the extended circuit structures 400C and 400D respectively extend from the corresponding central pixel structure 100C to the first circuit structure 200A. A line structure 200B extends. For example, the extension line structures 400A, 400B, 400C, and 400D each include a plurality of first extension lines 410 and a plurality of second extension lines 420, wherein the first extension lines 410 are electrically connected to the first line structure 200A and the second extension line 420 respectively. A second scan line 220 of a corresponding one of the circuit structures 200B, and the second extension circuit 420 is electrically connected to the second data of the corresponding one of the second circuit structure 300A and the second circuit structure 300B respectively. Line 320. For example, the second data line 320 is electrically connected to the second signal line 520 through the via hole 522 , and the second signal line 520 is electrically connected to the second extension line 420 through the via hole 524 .

In this embodiment, among the four peripheral pixel structures 100P arranged in the second direction D2, the two peripheral pixel structures 100P in the middle are electrically connected to A plurality of second scan lines 220 in a corresponding one of the first line structure 200A and the first line structure 200B. In the embodiment of FIG. 5 , the first signal line 510 extends along the second direction D2 and is disposed close to the second circuit structure 300A or the second circuit structure 300B.

In this embodiment, among the four peripheral pixel structures 100P arranged in the first direction D1, the peripheral pixel structure 100P located in the middle is electrically connected through a plurality of second extension lines 420 and a plurality of second signal lines 520. Connected to the second data line 320 in the corresponding one of the second circuit structure 300A and the second circuit structure 300B. In the embodiment of FIG. 5 , the second signal line 520 extends along the first direction D1 and is disposed close to the first circuit structure 200A or the first circuit structure 200B.

In some embodiments, each display unit 40 further includes a black matrix (not shown), which shields the two first circuit structures 200A, 200B, the two second circuit structures 300A, 300B and the extended circuit structures 400A, 400B. , 400C, 400D, and the black matrix covers part of the central pixel structure 100C and part of the peripheral pixel structure 100P, and exposes the light-emitting element 110 of the central pixel structure 100C, the light-emitting element 110 of the peripheral pixel structure 100P and the penetration area TR . In this embodiment, the penetration region TR is in a swastika shape. In this embodiment, the extended line structures 400A, 400B, 400C, and 400D respectively extend outward from a single corner or a single side of the corresponding central pixel structure 100C, so that at least three sides of each central pixel structure 100C are penetrated. surrounded by transparent zone TR.

Based on the above, through the arrangement of the extended line structures 400A, 400B, 400C, and 400D, the transmission region TR can have a larger area, thereby improving the problem of diffraction of light after passing through the transmission display panel.

6A and 6B are schematic top views of a display unit of a transmissive display panel according to an embodiment of the present invention. It must be noted here that the embodiments of FIGS. 6A and 6B follow the component numbers and part of the content of the embodiment of FIG. 5 , where the same or similar numbers are used to represent the same or similar elements, and references with the same technical content are omitted. instruction. For descriptions of omitted parts, reference may be made to the foregoing embodiments and will not be described again here.

In the embodiment of FIG. 6A and FIG. 6B , each transmissive display panel includes a plurality of display units 50A and a plurality of display units 50B. The display units 50A and the display units 50B have similar structures and are symmetrical to each other. In order to omit space, the following description will mainly focus on the display unit 50A in FIG. 6A .

The main difference between the display unit 50A of FIG. 6A and the display unit 30 of FIG. 4 is that in the display unit 50A, the extended line structures 400A, 400B, 400C, and 400D are respectively oriented from corners or in different directions of the central pixel structure 100C. One side of the direction extends outward.

The four extended circuit structures 400A, 400B, 400C, and 400D respectively extend outward from the positions of the four central pixel structures 100C, and are each electrically connected to the corresponding one of the first circuit structures 200A, 200B and the second circuit structure 300A. , the corresponding one in 300B. For example, in the display unit 50A, the extended line structures 400A, 400B, 400C, and 400D respectively extend in different directions from the corresponding one of the central pixel structures 100C, and the extended line structure 400A extends from the corresponding one of the central pixel structures 100C. The downward-facing side of 100C extends outward, the extended line structure 400B extends outward from the right-facing side of the corresponding central pixel structure 100C, and the extended line structure 400C extends from the left-facing side of the corresponding central pixel structure 100C. The extension line structure 400D extends outward from the upward side of the corresponding central pixel structure 100C. In this embodiment, the extended circuit structure 400A extends from a corresponding central pixel structure 100C to the first circuit structure 200A, and the extended circuit structure 400B extends from a corresponding central pixel structure 100C to the second circuit structure 300B. The circuit structure 400C extends from the corresponding central pixel structure 100C to the second circuit structure 300A, and the extended circuit structure 400D extends from the corresponding central pixel structure 100C to the first circuit structure 200B.

For example, the extension line structures 400A, 400B, 400C, and 400D each include a plurality of first extension lines 410 and a plurality of second extension lines 420, wherein the first extension lines 410 are electrically connected to the first line structure 200A and the second extension line 420 respectively. A second scan line 220 of a corresponding one of the circuit structures 200B, and the second extension circuit 420 is electrically connected to the second data of the corresponding one of the second circuit structure 300A and the second circuit structure 300B respectively. Line 320.

In this embodiment, the second scan line 220 is electrically connected to the extension line structure 400A and the first extension line 410 of the extension line structure 400D through the via hole 412, and the second data line 320 is electrically connected to the second signal line 520 through the second signal line 520. The second extension line 420 is electrically connected to the extension line structure 400A and the extension line structure 400D. The second data line 320 is electrically connected to the second signal line 520 through the via hole 522 , and the second signal line 520 is electrically connected to the extension line structure 400A and the second extension line 420 of the extension line structure 400D through the via hole 524 .

In this embodiment, the second scan line 220 is electrically connected to the extension line structure 400B and the first extension line 410 of the extension line structure 400C through the third signal line 530 . The second scan line 220 is electrically connected to the third signal line 530 through the via hole 532, and the third signal line 530 is electrically connected to the extension line structure 400B and the first extension line 410 of the extension line structure 400C through the via hole 534. . The second data line 320 is electrically connected to the extension line structure 400B and the second extension line 420 of the extension line structure 400C through the via hole 422 .

In this embodiment, among the four peripheral pixel structures 100P arranged in the second direction D2, one of the two peripheral pixel structures 100P located in the middle passes through the plurality of first signal lines 510 and the via holes 512 And are electrically connected to the plurality of second scan lines 220 in the corresponding one of the first circuit structure 200A and the first circuit structure 200B. Among the four peripheral pixel structures 100P arranged in the second direction D2, the other one of the two peripheral pixel structures 100P located in the middle is connected through the plurality of first extension lines 410 and the plurality of third signal lines 530. Electrically connected to the plurality of second scan lines 220 in the corresponding one of the first circuit structure 200A and the first circuit structure 200B. In the embodiment of FIG. 6A , the first signal line 510 and the third signal line 530 extend along the second direction D2 and are disposed close to the second circuit structure 300A or the second circuit structure 300B.

In this embodiment, one of the two peripheral pixel structures 100P located in the middle among the four peripheral pixel structures 100P arranged in the first direction D1 passes through the plurality of second extension lines 420 and the plurality of second signals. The line 520 is electrically connected to the second data line 320 in the corresponding one of the second circuit structure 300A and the second circuit structure 300B. The other of the two peripheral pixel structures 100P located in the middle among the four peripheral pixel structures 100P arranged in the first direction D1 is electrically connected to the second peripheral pixel structure 100P through a plurality of fourth signal lines 540 and via holes 542 . The second data line 320 in the corresponding one of the line structure 300A and the second line structure 300B. In the embodiment of FIG. 6A , the second signal line 520 and the fourth signal line 540 extend along the first direction D1 and are disposed close to the first circuit structure 200A or the first circuit structure 200B.

In some embodiments, each display unit 50A further includes a black matrix (not shown), which shields the two first circuit structures 200A, 200B, the two second circuit structures 300A, 300B and the extended circuit structures 400A, 400B. , 400C, 400D, and the black matrix covers part of the central pixel structure 100C and part of the peripheral pixel structure 100P, and exposes the light-emitting element 110 of the central pixel structure 100C, the light-emitting element 110 of the peripheral pixel structure 100P and the penetration area TR . In this embodiment, the penetration region TR is in the shape of a swastika. In this embodiment, the extended line structures 400A, 400B, 400C, and 400D respectively extend outward from a single corner or a single side of the corresponding central pixel structure 100C, so that at least three sides of each central pixel structure 100C are penetrated. surrounded by transparent zone TR.

Based on the above, through the arrangement of the extended line structures 400A, 400B, 400C, and 400D, the transmission region TR can have a larger area, thereby improving the problem of diffraction of light after passing through the transmission display panel.

FIG. 7 is a schematic top view of a display unit of a transmissive display panel according to an embodiment of the present invention. It must be noted here that the embodiment of FIG. 7 follows the component numbers and part of the content of the embodiment of FIG. 6A , where the same or similar numbers are used to represent the same or similar elements, and the description of the same technical content is omitted. For descriptions of omitted parts, reference may be made to the foregoing embodiments and will not be described again here.

The main difference between the display unit 60 of FIG. 7 and the display unit 50A of FIG. 6A is that in the display unit 60, the extension line structure 400A extends outward from the corresponding lower left corner of a central pixel structure 100C, and the extension line structure 400B Extending outward from the lower-right corner of the corresponding central pixel structure 100C, the extended line structure 400C extends outward from the upper-left corner of the corresponding central pixel structure 100C, and the extended line structure 400D extends from the corresponding central pixel structure 100C. The corner of the element structure 100C extends outward toward the upper right corner.

The four extended circuit structures 400A, 400B, 400C, and 400D respectively extend outward from the positions of the four central pixel structures 100C, and are each electrically connected to the corresponding one of the first circuit structures 200A, 200B and the second circuit structure 300A. , the corresponding one in 300B. In this embodiment, each of the extension line structures 400A, 400B, 400C, and 400D extends outward from one corner of its corresponding central pixel structure 100C. In this embodiment, the extended circuit structure 400A extends from a corresponding central pixel structure 100C to the intersection of the first circuit structure 200A and the second circuit structure 300A, and the extended circuit structure 400B extends from a corresponding central pixel structure 100C. Extending toward the intersection of the first circuit structure 200A and the second circuit structure 300B, the extended circuit structure 400C extends from a corresponding central pixel structure 100C to the intersection of the first circuit structure 200B and the second circuit structure 300A, and the extended circuit The structure 400D extends from a corresponding central pixel structure 100C to the intersection of the first line structure 200B and the second line structure 300B.

For example, the extension line structures 400A, 400B, 400C, and 400D each include a plurality of first extension lines 410 and a plurality of second extension lines 420, wherein the first extension lines 410 are electrically connected to the first line structure 200A and the second extension line 420 respectively. A second scan line 220 of a corresponding one of the circuit structures 200B, and the second extension circuit 420 is electrically connected to the second data of the corresponding one of the second circuit structure 300A and the second circuit structure 300B respectively. Line 320.

In this embodiment, the second scan line 220 is electrically connected to the first extension line 410 of the extension line structures 400A, 400B, 400C, and 400D, and the second data line 320 is electrically connected to the extension line structures 400A, 400B, and 400C. , the second extension line 420 of 400D.

In some embodiments, between the extended circuit structures 400A, 400B, 400C, 400D and the first circuit structures 200A, 200B and/or between the extended circuit structures 400A, 400B, 400C, 400D and the second circuit structures 300A, 300B. A plurality of via holes are electrically connected. For example, the first extension line 410 and the second scan line 220 belong to different conductive layers, so the first extension line 410 and the second scan line 220 are electrically connected through the via hole 412 . For example, the second extension line 420 and the second data line 320 belong to different conductive layers, so the second extension line 420 and the second data line 320 are electrically connected through the via hole 422 . In some embodiments, the distance between the via holes 412 and 422 and the central pixel structure 100C is greater than the distance between the via holes 412 and 422 and the peripheral pixel structure 100P. By concentrating the via holes 412 and 422 on the periphery of the display unit 60, the area of the penetration region TR can be increased.

In this embodiment, among the four peripheral pixel structures 100P arranged in the second direction D2, the two peripheral pixel structures 100P in the middle are electrically connected to A plurality of second scan lines 220 in a corresponding one of the first line structure 200A and the first line structure 200B. In the embodiment of FIG. 7 , the first signal line 510 extends along the second direction D2 and is disposed close to the second circuit structure 300A or the second circuit structure 300B.

In this embodiment, among the four peripheral pixel structures 100P arranged in the first direction D1, the central peripheral pixel structure 100P is electrically connected to the second peripheral pixel structure 100P through a plurality of second signal lines 520 and via holes 522. The second data line 320 in the corresponding one of the line structure 300A and the second line structure 300B. In the embodiment of FIG. 7 , the second signal line 520 extends along the first direction D1 and is disposed close to the first circuit structure 200A or the first circuit structure 200B.

In some embodiments, each display unit 60 further includes a black matrix (not shown), which shields the two first circuit structures 200A, 200B, the two second circuit structures 300A, 300B and the extended circuit structures 400A, 400B. , 400C, 400D, and the black matrix covers part of the central pixel structure 100C and part of the peripheral pixel structure 100P, and exposes the light-emitting element 110 of the central pixel structure 100C, the light-emitting element 110 of the peripheral pixel structure 100P and the penetration area TR . In this embodiment, the penetration area TR is in the shape of a rice. In this embodiment, the extended line structures 400A, 400B, 400C, and 400D respectively extend outward from a single corner or a single side of the corresponding central pixel structure 100C, so that at least three sides of each central pixel structure 100C are penetrated. surrounded by transparent zone TR.

Based on the above, through the arrangement of the extended line structures 400A, 400B, 400C, and 400D, the transmission region TR can have a larger area, thereby improving the problem of diffraction of light after passing through the transmission display panel.

8A is a schematic diagram of the transmissive area and the non-transmissive area of a display unit of a transmissive display panel according to a comparative example of the present invention. 8B to 8D are schematic diagrams of the transmissive area and the non-transmissive area of a display unit of a transmissive display panel according to some embodiments of the present invention. In FIGS. 8A to 8D , the black area is the non-penetrating area, and the white area is the penetrating area. In FIG. 8A , a plurality of transversely extending black strips and a plurality of longitudinally extending black strips constitute a non-penetrating area. The circuit structure and the pixel structure are arranged in the non-penetrating area, and the pixel structure is arranged in a transversely extending area. The staggered position of the long black strips and the long black strips extending vertically. In Figure 8A, every four pixel structures correspond to a penetration area. FIG. 8B is a schematic diagram of the transmissive area and the non-transmissive area of the display unit 60 of FIG. 7 . FIG. 8C is a schematic diagram of the transmissive area and the non-transmissive area of the display unit 30 of FIG. 4 . FIG. 8D is a schematic diagram of the transmissive area and the non-transmissive area of the display unit 50B in FIG. 6B.

After simulating the diffraction situation of various display units, it can be seen that when the ratio of the penetration area is similar, the display unit corresponding to Figure 8D can better improve the diffraction problem, followed by the display unit corresponding to Figure 8C. Next is the display unit corresponding to Figure 8B. The diffraction problem of the display unit corresponding to Figure 8A is the most serious.

1: Transparent display panel 10,20,30,40,50A,50B,60: display unit 100C: Central pixel structure 100P: Peripheral pixel structure 110:Light-emitting component 120: Pixel circuit 121:Semiconductor channel 122: Gate 123: First source/drain 124: Second source/drain 126:First electrode 127:Second electrode 200A, 200B: First line structure 210: first scan line 220: Second scan line 300A, 300B: Second line structure 310: First data line 320: Second data line 400, 400A, 400B, 400C, 400D: extended line structure 410: First extension line 412,422,512,522,524,532,534,542: Via hole 420: Second extension line 510: First signal line 520: Second signal line 530:Third signal line 540: The fourth signal line D1: first direction D2: second direction DA: display area I1: first insulation layer I2: Second insulation layer I3: The third insulation layer I4: The fourth insulation layer I5: The fifth insulation layer M1: first conductive layer M2: Second conductive layer M3: The third conductive layer M4: The fourth conductive layer NDA: non-display area SB:Substrate TR: penetration zone

1A is a schematic top view of a transmissive display panel according to an embodiment of the present invention. FIG. 1B is a schematic top view of the display unit of the transmissive display panel of FIG. 1A . FIG. 2 is a partial cross-sectional schematic view of the display unit of FIG. 1B. FIG. 3 is a schematic top view of a display unit of a transmissive display panel according to an embodiment of the present invention. FIG. 4 is a schematic top view of a display unit of a transmissive display panel according to an embodiment of the present invention. FIG. 5 is a schematic top view of a display unit of a transmissive display panel according to an embodiment of the present invention. 6A and 6B are schematic top views of a display unit of a transmissive display panel according to an embodiment of the present invention. FIG. 7 is a schematic top view of a display unit of a transmissive display panel according to an embodiment of the present invention. 8A is a schematic diagram of the transmissive area and the non-transmissive area of a display unit of a transmissive display panel according to a comparative example of the present invention. 8B to 8D are schematic diagrams of the transmissive area and the non-transmissive area of a display unit of a transmissive display panel according to some embodiments of the present invention.

10:Display unit

100C: Central pixel structure

100P: Peripheral pixel structure

110:Light-emitting component

120: Pixel circuit

200A, 200B: First line structure

210: first scan line

220: Second scan line

300A, 300B: Second line structure

310: First data line

320: Second data line

400:Extended line structure

410: First extension line

412,422,512,522: Via hole

420: Second extension line

510: First signal line

520: Second signal line

D1: first direction

D2: second direction

TR: penetration zone

Claims (11)

A transmissive display panel including: a base; and Multiple display units are located on the substrate, and each display unit includes: Multiple surrounding pixel structures; At least one central pixel structure, the peripheral pixel structures are arranged in an array with the at least one central pixel structure, and the peripheral pixel structures are arranged on the periphery of the at least one central pixel structure; Two first circuit structures extend along a first direction, part of the peripheral pixel structures are arranged in two rows along the first direction, and the two first circuit structures are respectively electrically connected to the two first circuit structures along the first direction. The corresponding row of the peripheral pixel structures of the portion arranged in two rows in the first direction; Two second circuit structures extend along a second direction, part of the peripheral pixel structures are arranged in two rows along the second direction, and the two second circuit structures are respectively electrically connected to The corresponding row of the peripheral pixel structures of the two-row portion in the second direction, wherein the two first line structures and the two second line structures surround a continuous penetration area; and At least one extension line structure, each of the at least one extension line structure electrically connects a corresponding one of the at least one central pixel structure to a corresponding one of the two first line structures and the two Corresponding one of the second line structures, wherein each of the at least one extended line structure is respectively between the corresponding one of the two first line structures and/or within the at least one extended line structure. Each of them is electrically connected to the corresponding one of the two second circuit structures through a plurality of via holes, and the distance between the via holes and the at least one central pixel structure is greater than the distance between the via holes and the at least one central pixel structure. The distance between the hole and the surrounding pixel structures. The transmissive display panel of claim 1, wherein each of the at least one extension line structure extends outward from a single corner or a single side of the corresponding one of the at least one central pixel structure. The transmissive display panel of claim 1, wherein the shape of the pixel circuit of the at least one central pixel structure is different from the shapes of the pixel circuits of the peripheral pixel structures. The transmissive display panel of claim 1, wherein the number of peripheral pixel structures in each display unit is twelve, and the number of the at least one central pixel structure is four. The transmissive display panel as claimed in claim 4, wherein the number of the at least one extension line structure in each display unit is four, and two of the extension line structures are respectively connected from the central pixels. Two of the structures extend to one of the first line structures, and the other two of the extended line structures respectively go from the other two of the central pixel structures to the third One of the other extensions in a line structure. The transmissive display panel as claimed in claim 4, wherein the number of the at least one extension line structure in each display unit is four, and two of the extension line structures are respectively connected from the central pixels. Two of the structures extend to one of the second line structures, and the other two of the extended line structures respectively go from the other two of the central pixel structures to the third The other of the two line structures extends. The transmissive display panel of claim 4, wherein the number of the at least one extension line structure in each display unit is four, and the extension line structures are directed in different directions from the central pixel structures. extend. The transmissive display panel of claim 4, wherein the number of the at least one extension line structure in each display unit is four, and the extension line structures are oriented in different directions from the central pixel structures. corners or extend outward in different directions. The transmissive display panel of claim 1, wherein the number of the peripheral pixel structures in each display unit is eight, and the number of the at least one central pixel structure is one. The transmissive display panel as claimed in claim 1, wherein the shape of the transmissive area includes a C-shape, a king-shape, a swastika, a swastika, and a rice-shape. The transmissive display panel of claim 1, wherein in each display unit, the transmissive area continuously extends from the center of the display unit to the two first circuit structures and the two second circuit structures. .

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