Transparent display panel

Abstract

A transparent display panel having a plurality of driving electrode areas, a plurality of circuit wiring areas and a plurality of optically transparent areas. The driving electrode areas are arranged in an array along a first direction and a second direction. The average light transmittance of the circuit wiring area is less than ten percent, and the average light transmittance of the optically transparent area is greater than that of the driving electrode area and the circuit wiring area. The first direction intersects with the second direction. The circuit wiring area connects the driving electrode areas at intervals so that each optically transparent area crosses between parts of the driving electrode areas. The transparent display panel includes a plurality of first signal lines and a plurality of second signal lines extending along the circuit wiring area, and each circuit wiring area is provided with at least one first signal line and at least one second signal line.

Description

Technical Field

[0001] The present invention relates to a display panel, and in particular to a transparent display panel. Background Art

[0002] A transparent display panel is a display panel with a certain degree of permeability. Users can see the image information displayed on the transparent display panel and the background information behind the transparent display panel. Transparent panels are suitable for a variety of scenarios such as vending machines, car windows, and store windows. Transparent display panels usually use liquid crystal display (LED), organic light-emitting diode (OLED) or micro light-emitting diode (μLED) technology.

[0003] In order to allow the user to receive both the display information and the physical information of the background at the same time, the transparent display panel has a component setting area with low average optical transmission and a penetration area with high average optical transmission. The component setting area can be used to set the driving electrode of the liquid crystal display or the self-luminous diode (for example, an organic light emitting diode or a micro light emitting diode) and related circuit wiring, and the penetration area allows the user to receive the background behind the transparent display panel. Since the circuit wiring divides the penetration area into multiple small penetration areas, this may cause diffraction and reduce the image quality. Therefore, how to reduce the diffraction phenomenon in the transparent display panel and keep the transparent display panel to a certain degree of penetration has become a problem that needs to be solved urgently. Summary of the invention

[0004] The present invention provides a transparent display panel, which can reduce the diffraction phenomenon in the transparent display panel and enable the transparent display panel to maintain a certain degree of transparency.

[0005] One embodiment of the present invention provides a transparent display panel having a plurality of driving electrode areas, a plurality of circuit wiring areas, and a plurality of optically transparent areas. The driving electrode areas are arrays arranged along a first direction and a second direction. The average light transmittance of the circuit wiring areas is less than ten percent, and the average light transmittance of the optically transparent areas is greater than that of the driving electrode areas and the circuit wiring areas. The first direction intersects with the second direction, and the circuit wiring areas connect the driving electrode areas at intervals, so that each optically transparent area crosses between parts of the driving electrode areas. The transparent display panel includes a plurality of first signal lines and a plurality of second signal lines extending along the circuit wiring areas, and each circuit wiring area includes at least one first signal line and at least one second signal line.

[0006] In one embodiment of the present invention, the driving electrode regions are distributed at equal intervals to define a plurality of pixel units, and the area of ​​each optically transparent region is one to three times the area of ​​each pixel unit.

[0007] In one embodiment of the present invention, the circuit routing area is divided into a plurality of first circuit routing areas and a plurality of second circuit routing areas according to different extension directions. The first circuit routing area connects every three intervals of the driving electrode area into a plurality of first direction strings along the first direction, and adjacent first direction strings in the first direction are spaced apart from each other. The second circuit routing area connects every three intervals of the driving electrode area into a plurality of second direction strings along the second direction, and adjacent second direction strings in the second direction are spaced apart from each other.

[0008] In one embodiment of the present invention, the optically transparent area of ​​the transparent display panel crosses between adjacent first direction strings and crosses between adjacent second direction strings.

[0009] In one embodiment of the present invention, the middle driving electrode region among the three driving electrode regions in the first direction string is the edge driving electrode region among the three driving electrode regions in each second direction string.

[0010] In one embodiment of the present invention, the middle driving electrode region among the three driving electrode regions in each second direction string is the edge driving electrode region among the three driving electrode regions in each first direction string.

[0011] In an embodiment of the present invention, an extension direction of the first circuit wiring region is not parallel to the first direction.

[0012] In an embodiment of the present invention, an extension direction of the second circuit wiring area is not parallel to the second direction.

[0013] In one embodiment of the present invention, each first signal line includes a plurality of series-connected segments and a plurality of meandering segments. Each series-connected segment extends along a corresponding first direction string. The meandering segment is connected between the series-connected segments and meanders between the corresponding first direction string and an adjacent first direction string.

[0014] In one embodiment of the present invention, the meandering section includes two first sub-segments and one second sub-segment. The two first sub-segments extend from the corresponding first direction string to the adjacent first direction string along the corresponding second direction string, respectively. The second sub-segment extends along the adjacent first direction string and is connected between the two first sub-segments.

[0015] In one embodiment of the present invention, each second signal line includes a plurality of series-connected segments and a plurality of meandering segments. Each series-connected segment extends along a corresponding second direction string. The meandering segment is connected between the series-connected segments and meanders between the corresponding second direction string and an adjacent second direction string.

[0016] In one embodiment of the present invention, the meandering section includes two first sub-segments and one second sub-segment. The two first sub-segments extend from the corresponding second direction string to the adjacent second direction string along the corresponding first direction string, respectively. The second sub-segment extends along the adjacent second direction string and is connected between the two first sub-segments.

[0017] In one embodiment of the present invention, the transparent display panel further includes a light shielding layer that completely covers the circuit wiring area.

[0018] In one embodiment of the present invention, the light shielding layer has an arc-shaped contour at the intersection of the circuit wiring area and the driving electrode area.

[0019] In one embodiment of the present invention, the first signal line and the second signal line are formed by at least two conductive layers, and the first signal line and the second signal line are electrically independent of each other.

[0020] Based on the above, in the transparent display panel of the present invention, since the intervals between some circuit wiring areas are inconsistent, the optical diffraction phenomenon caused by the dense distribution of the circuit wiring areas can be suppressed. The circuit wiring areas with larger intervals increase the width of the optically transparent area, so that the transparent display panel has a certain degree of light transmittance. In addition, in the transparent display panel of the present invention, the intersection of the circuit wiring area and the driving electrode area can have an arc profile to reduce the phenomenon of image light being disturbed due to the optical diffraction phenomenon at the edge of the profile.

[0021] In order to make the above features and advantages of the present invention more obvious and easy to understand, embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a top view of a transparent display panel according to an embodiment of the present invention.

[0023] Figure 2 is a top view of a transparent display panel according to an embodiment of the present invention.

[0024] Figure 3 is a top view of a transparent display panel according to an embodiment of the present invention.

[0025] Figure 4 is a top view of a transparent display panel according to an embodiment of the present invention.

[0026] Figure 5 is a top view of a transparent display panel according to an embodiment of the present invention.

[0027] Figure 6 is a top view of a transparent display panel according to an embodiment of the present invention.

[0028] Figure 7 is an exploded view of a transparent display panel according to an embodiment of the present invention.

[0029] Figure 8 FIG. 4 is a top view of a transparent display panel using organic light emitting diodes as display elements according to an embodiment of the present invention.

[0030] Fig. 9 FIG. 4 is a top view of a transparent display panel using micro light emitting diodes as display elements according to an embodiment of the present invention.

[0031] Fig.10 is a schematic diagram of a transparent display panel using liquid crystal material as a display element according to an embodiment of the present invention.

[0032] Fig.11 FIG. 4 is a top view of a transparent display panel using a liquid crystal layer according to an embodiment of the present invention.

[0033] Description of reference numerals:

[0034] 100, 100a, 100b, 100c, 200, 200a, 400, 500, 600: Transparent display panel

[0035] 102, 102a, 202, 202a, 402, 502, 606: driving electrode area

[0036] 104,104a,104b,104c,204,204a,404,504,608: Optically transparent areas

[0037] 105, 105a, 105b, 105c, 205, 405, 505, 610: Circuit routing area

[0038] 106, 106a, 106b, 106c, 206, 406, 506, 612: first circuit routing area

[0039] 108, 108a, 108b, 108c, 208, 408, 508, 614: Second circuit routing area

[0040] 110, 110a, 110b, 110c, 210, 210a, 620: pixel unit

[0041] 112: First direction string

[0042] 114: Second direction string

[0043] 300: Light-shielding layer

[0044] 310, 312, 314: First signal line

[0045] 310A, 320A, 322A: Series connection

[0046] 310B, 320B: winding section

[0047] 310B1, 320B1: First sub-segment

[0048] 310B2, 320B2: Second subsection

[0049] 320, 322, 324: Second signal line

[0050] 410: Organic Light Emitting Diode

[0051] 410a, 410b, 410c, 510a, 510b, 510c: sub-pixels

[0052] 620a, 620b, 620c: sub-pixel electrodes

[0053] 510: Micro LED

[0054] 602: Substrate

[0055] 604: Liquid crystal layer

[0056] D1: First direction

[0057] D2: Second direction

[0058] L1, L2: Column

[0059] PA1, PB1: First spacing

[0060] PA2, PB2: Second spacing

[0061] R1, R2: Row

[0062] R205: Curved profile

[0063] T202a: Corner DETAILED DESCRIPTION

[0064] The present invention is more fully described with reference to the accompanying drawings of the present embodiment. However, the present invention may be embodied in various forms and should not be limited to the embodiments described herein. The same or similar reference numerals represent the same or similar elements, and the following paragraphs will not be repeated one by one.

[0065] As used herein, "about," "approximately," or "substantially" includes the stated value and an average value within an acceptable deviation range of a particular value determined by one of ordinary skill in the art, taking into account the measurement in question and the particular amount of error associated with the measurement (i.e., the limitations 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, as used herein, "about," "approximately," or "substantially" can select an acceptable deviation range or standard deviation depending on the optical properties, etching properties, or other properties.

[0066] 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 invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology and the present invention, and will not be interpreted as an idealized or overly formal meaning unless explicitly defined in this article.

[0067] The circuit wiring of the existing transparent display panel is arranged in a cross-staggered manner, which causes diffraction when the light passes through the gaps between the circuit wirings, making the image of the transparent display panel blurred. In order to improve the image quality and keep a certain degree of transparency of the transparent display panel, the present invention reduces the diffraction caused by the wiring and maintains a sufficient penetration area by concentrating and staggering the wiring.

[0068] Figure 1 FIG. 1 is a top view of a transparent display panel 100 according to an embodiment of the present invention. Figure 1 The transparent display panel 100 has a plurality of driving electrode regions 102, a plurality of optically transparent regions 104, and a plurality of circuit wiring regions 105. The plurality of driving electrode regions 102, the plurality of optically transparent regions 104, and the plurality of circuit wiring regions 105 define a plurality of first direction strings 112, a plurality of second direction strings 114, and a plurality of pixel units 110 on the plane of the transparent display panel 100. The first direction strings 112 each extend along a first direction (row direction) D1, and the second direction strings 114 each extend along a second direction D2, wherein the first direction D1 intersects the second direction D2. In some embodiments, the first direction D1 and the second direction D2 may be perpendicular to each other, but are not limited thereto.

[0069] The driving electrode region 102 is used to set an organic light emitting diode, a micro light emitting diode or a liquid crystal driving element or other element that can realize a display function. Figure 1In the embodiment, the driving electrode region 102 is in a rectangular shape. It should be understood that the shape of the driving electrode region 102 is not limited thereto, and driving electrode regions 102 of other geometric shapes may be used according to different transparent display panels. In some embodiments, the driving electrode region 102 may be in any geometric shape with a geometric center point, and a fixed distance is maintained between the geometric center points of adjacent driving electrode regions 102. In some embodiments, the driving electrode region 102 may be a periodic array arranged along the first direction D1 and the second direction D2.

[0070] The circuit wiring area 105 is an area with low average light transmittance extending between the driving electrode areas 102. For example, the average light transmittance of the circuit wiring area 105 is less than 10%. Figure 1 In the embodiment, the circuit wiring area 105 is a strip-shaped area, and the circuit wiring area 105 can be divided into a first circuit wiring area 106 and a second circuit wiring area 108 according to different extension directions. The extension directions of the first circuit wiring area 106 and the second circuit wiring area 108 are respectively parallel to the first direction D1 and the second direction D2. However, it should be understood that Figure 1 This is only an example and not a limitation. In other embodiments, the extension directions of the first circuit wiring area 106 and the second circuit wiring area 108 may not be parallel to the first direction D1 and the second direction D2.

[0071] In this embodiment, the first circuit wiring area 106 connects every three intervals of the driving electrode area 102 along the first direction D1 to define a plurality of first direction strings 112, and the adjacent first direction strings 112 in the first direction D1 are spaced apart from each other. In other words, there is no circuit wiring area 105 between any two adjacent first direction strings 112 in the first direction D1. Similarly, the second circuit wiring area 108 connects every three intervals of the driving electrode area 102 along the second direction D2 to define a plurality of second direction strings 114, and the adjacent second direction strings 114 in the second direction D2 are spaced apart from each other. In other words, there is no second circuit wiring area 108 between two adjacent second direction strings 114 in the second direction D2.

[0072] The middle driving electrode region 102 among the three driving electrode regions 102 of each first direction string 112 is an edge driving electrode region 102 among the three driving electrode regions 102 of one of the second direction strings 114. The middle driving electrode region 102 among the three driving electrode regions 102 of each second direction string 114 is an edge driving electrode region 102 among the three driving electrode regions 102 of one of the first direction strings 112. Therefore, any first direction string 112 can form a T-shaped pattern with a corresponding second direction string 114, but the present invention is not limited thereto.

[0073] like Figure 1 As shown, the driving electrode regions 102 are distributed at equal intervals, so a plurality of pixel units 110 can be defined in the transparent display panel 100 according to the arrangement of the driving electrode regions 102. For example, Figure 1 The range of the pixel unit 110 indicated is an imaginary area defined by a line connecting the geometric center point of the driving electrode region 102 to the geometric center point of the adjacent driving electrode region 102, and is not an actual element. In other embodiments, the pixel unit 110 may be defined as an imaginary area defined by a line connecting a specified corner of the driving electrode region 102 (e.g., the upper left corner in the figure) to a specified corner of the adjacent driving electrode region 102 (e.g., the upper left corner in the figure).

[0074] The area outside the driving electrode area 102 and the circuit wiring area 105 is an optically transparent area 104. In the transparent display panel 100, the optically transparent area 104 is defined by the driving electrode area 102 and the circuit wiring area 105. As described above, there is no first circuit wiring area 106 between two adjacent first direction strings 112 in the first direction D1, and there is no second circuit wiring area 108 between two adjacent second direction strings 114 in the second direction D2. Under such a layout, the driving electrode area 102 and the circuit wiring area 106 can enclose a plurality of optically transparent areas 104, and each optically transparent area 104 can cross between parts of the driving electrode areas 102. In other words, the optically transparent area 104 crosses between adjacent first direction strings 112 and between adjacent second direction strings 114. In this embodiment, the optically transparent area 104 is roughly distributed corresponding to the three pixel units 110 arranged in an L shape, so the shape of the optically transparent area 104 is approximately L-shaped. In addition, the area of ​​each optically transparent region 104 is, for example, one to three times the area of ​​each pixel unit 110 .

[0075] In the transparent display panel 100, the average transmittance of the driving electrode region 102 and the circuit wiring region 105 is less than 10%, and the average transmittance of the optically transparent region 104 is greater than the average transmittance of the driving electrode region 102 and the circuit wiring region 105. For example, the average transmittance of the optically transparent region 104 ranges from 10% to 99%. In addition, part of the first circuit wiring region 106 is separated by a first pitch PA1 in the second direction D2, and another part of the first circuit wiring region 106 is separated by a second pitch PA2 in the second direction D2, and the first pitch PA1 is approximately twice the second pitch PA2. Similarly, part of the second circuit wiring region 108 is separated by a first pitch PB1 in the first direction D1, and another part of the second circuit wiring region 108 is separated by a second pitch PB2 in the first direction D1, and the first pitch PB1 is approximately twice the second pitch PB2. Since part of the circuit wiring region 105 is separated by a large distance from the adjacent circuit wiring region 105, the optical diffraction phenomenon caused by the dense and regular distribution of the circuit wiring region 105 can be suppressed. In addition, the circuit trace areas 105 with larger intervals increase the width of a single optically transparent area 104 , which helps the transparent display panel 100 to have sufficient light transmittance.

[0076] Other forms of transparent display panels will be described below. In the following embodiments, the same or similar elements as those in the previous embodiment are represented by the same or similar symbols, and will not be described in detail. Only the main differences are described.

[0077] Figure 2 FIG. 1 is a top view of a transparent display panel 100 a according to an embodiment of the present invention. Figure 2 The transparent display panel 100a has a driving electrode region 102a, an optically transparent region 104a, and a circuit wiring region 105a. The circuit wiring region 105a extends between the driving electrode regions 102a, and the optically transparent region 104a is surrounded by the driving electrode regions 102a and the circuit wiring region 105a. According to different extension directions, the circuit wiring region 105a can be divided into a first circuit wiring region 106a and a second circuit wiring region 108a. Figure 2 As shown, the shape of the driving electrode region 102a is approximately L-shaped. It should be understood that Figure 1 as well as Figure 2 The driving electrode regions 102 and 102a in the embodiment are only examples of the driving electrode regions of the present invention, but are not limiting. In other embodiments, the shape of the driving electrode region 102a may be circular, trapezoidal, or any geometric shape. The wiring method of the circuit routing region 105a of the present embodiment is as described above, and the shape of the optically transparent region 104a of the present embodiment is also approximately L-shaped.

[0078] exist Figure 2In the embodiment, a plurality of driving electrode regions 102a are arranged at equal intervals, that is, any adjacent driving electrode regions 102a are spaced at the same distance in the first direction D1 or the second direction D2. In this way, a plurality of pixel units 110a can be defined by the arrangement of the driving electrode regions 102a. In the present embodiment, each optically transparent region 104a corresponds to three pixel units 110a distributed along an L-shaped path, and the area of ​​the optically transparent region 104a can be one to three times the area of ​​each pixel unit 110a. Since part of the circuit wiring region 105a is spaced at a greater distance from the adjacent circuit wiring region 105a, the optical diffraction phenomenon caused by the dense distribution of the circuit wiring region 105a can be suppressed. In addition, the circuit wiring region 105a with a larger spacing increases the width of the optically transparent region 104a, which helps the transparent display panel 100a to have sufficient light transmittance.

[0079] Figure 3 FIG. 1 is a top view of a transparent display panel 100 b according to an embodiment of the present invention. Figure 3 The transparent display panel 100b has a driving electrode area 102, an optically transparent area 104b and a circuit wiring area 105b. The transparent display panel 100b is substantially similar to the aforementioned transparent display panel 100, and the circuit wiring area 105b of the present embodiment can be divided into a first circuit wiring area 106b and a second circuit wiring area 108b. The first circuit wiring area 106b connects adjacent driving electrode areas 102 arranged along a first direction D1, and the second circuit wiring area 108b connects adjacent driving electrode areas 102 arranged along a second direction D2. The driving electrode areas 102 are arranged in an array at equal intervals, and a plurality of pixel units 110b can be defined. Each optically transparent area 104b can be arranged along three pixel units 110b arranged in an L-shaped path (such as Figure 3 The three marked pixel units 110b) are distributed.

[0080] and Figure 1 The difference between the embodiment of the present invention is that the extension direction of the first circuit wiring area 106b is parallel to the first direction D1, while the extension direction of the second circuit wiring area 108b is not parallel to the second direction D2. In the plane defined by the first direction D1 and the second direction D2, the second circuit wiring area 108b can be regarded as an oblique straight line, and the first circuit wiring area 106b can be regarded as a straight line. It should be understood that the extension direction of the circuit wiring area 105b in this embodiment is only an example, that is, the circuit wiring area 105b can be a straight line, an oblique straight line, or a combination of the two. In this embodiment, the edge contour of the optically transparent area 104b can be a combination of a straight line and an oblique straight line according to the extension layout of the circuit wiring area 105b and the appearance of the driving electrode area 102.

[0081] Figure 4 FIG. 1 is a top view of a transparent display panel 100 c according to an embodiment of the present invention. Figure 4 The transparent display panel 100c has a driving electrode area 102, an optically transparent area 104c and a circuit wiring area 105c. The driving electrode areas 102 are arranged in an array along the first direction D1 and the second direction D2 at equal intervals. The circuit wiring areas 105c each extend between two adjacent driving electrode areas 102. The circuit wiring area 105c can be divided into a first circuit wiring area 106c and a second circuit wiring area 108c according to the extension direction, wherein the first circuit wiring area 106c connects every three driving electrode areas 102 at intervals in the first direction D1, and the second circuit wiring area 108c connects every three driving electrode areas 102 at intervals in the second direction D2. Each driving electrode area 102 is arranged in an array at equal intervals, and a plurality of pixel units 110c can be defined. Each optically transparent area 104c can be arranged along three pixel units 110c (such as L-shaped paths) arranged in an L-shaped path. Figure 4 The three marked pixel units 110b) are distributed.

[0082] and Figure 1 The difference from the embodiment of the present invention is that the extension direction of the first circuit wiring area 106c in this embodiment is not parallel to the first direction D1, and the extension direction of the second circuit wiring area 108c is not parallel to the second direction D2. In the plane defined by the first direction D1 and the second direction D2, the first circuit wiring area 106c and the second circuit wiring area 108c can be regarded as arc-shaped wiring areas, and in some embodiments, each circuit wiring area 105c can be an arc area with different curvatures or arc lengths. In this embodiment, the edge contour of the optically transparent area 104c can conform to the contours of the circuit wiring area 105c and the driving electrode area 102 and be composed of arc segments and straight line segments.

[0083] Figure 5 FIG. 2 is a top view of a transparent display panel 200 according to an embodiment of the present invention. Figure 5The transparent display panel 200 has a driving electrode area 202, an optically transparent area 204, and a circuit wiring area 205. The driving electrode areas 202 are arranged in an array along the first direction D1 and the second direction D2 at equal intervals. The circuit wiring areas 205 each extend between two adjacent driving electrode areas 202. In the present embodiment, each driving electrode area 202 has a rectangular outline, and the width of each driving electrode area 202 in the first direction D1 is less than the length in the second direction D2. In addition, the circuit wiring area 205 has an arc-shaped outline R205 at the junction of the circuit wiring area 205 and the corresponding driving electrode area 202. For example, the line width of each circuit wiring area 205 is larger as it is closer to the driving electrode area 202.

[0084] The circuit routing area 205 can be divided into a first circuit routing area 206 and a second circuit routing area 208 according to the extension direction, wherein the first circuit routing area 206 connects every three intervals of the driving electrode area 202 in the first direction D1, and the second circuit routing area 208 connects every three intervals of the driving electrode area 202 in the second direction D2. The driving electrode areas 202 are arranged in an array with equal spacing, and a plurality of pixel units 210 can be defined. Each optically transparent area 204 can be arranged along three pixel units 210 arranged in an L-shaped path (such as Figure 5 The three marked pixel units 210) are distributed.

[0085] Figure 6 FIG. 2 is a top view of a transparent display panel 200 a according to an embodiment of the present invention. Figure 6 The transparent display panel 200a has a driving electrode area 202a, an optically transparent area 204a and a circuit wiring area 205, wherein the layout of the circuit wiring area 205 is roughly similar to Figure 5 The circuit wiring area 205 is connected to the driving electrode area 202a, so it is marked with the same element number. In this embodiment, the line width of each circuit wiring area 205 is larger as it is closer to the driving electrode area 202a, and has an arc-shaped profile R205. However, the profile of the driving electrode area 202a is different from that of the driving electrode area 202. Therefore, the optically transparent area 204a surrounded by the profiles of the driving electrode area 202a and the circuit wiring area 205 also has a profile different from that of the optically transparent area 204. In addition, the driving electrode area 202a has a similar Figure 2 The driving electrode region 102a has an L-shaped profile, but the profile of the driving electrode region 202a at the corner T202a is roughly arc-shaped.

[0086] exist Figure 5 and Figure 6In the embodiment, the curved profile design of the curved profile R205 and the corner T202a may partially sacrifice the area of ​​the optical transparent region 204a, but the phenomenon of image light being disturbed due to optical diffraction at the contour edge of the circuit wiring region 205 and the driving electrode region 202a can be reduced. This helps to improve the blur of the image of the transparent display panel 200 and 200a.

[0087] Figure 7 FIG. 1 is an exploded view of a transparent display panel 100 and some of its components according to an embodiment of the present invention. Figure 7 In the embodiment, the transparent display panel 100 has a driving electrode region 102, an optically transparent region 104 and a circuit wiring region 105, and the layout configuration of these regions can refer to Figure 1 and related instructions. Figure 7 Part of the components of the transparent display panel 100 shown include a light shielding layer 300, first signal lines 310, 312, 314, and second signal lines 320, 322, 324. Figure 7 The three first signal lines 310 , 312 , 314 and the three second signal lines 320 , 322 , 324 shown in FIG. 1 are only used as an example, and the number of signal lines may be increased or decreased according to the requirements of the transparent display panel 100 .

[0088] The light shielding layer 300 is generally distributed along the driving electrode region 102 and the circuit wiring region 105. In some embodiments, the light shielding layer 300 can be made of light shielding materials such as light shielding resin and metal.

[0089] In some embodiments, the light shielding layer 300 is used to cover the first signal lines 310, 312, 314 and the second signal lines 320, 322, 324 in the circuit wiring area 105 and the gaps between these signal lines, so that the average light transmittance of the circuit wiring area 105 is less than 10%. In addition, the light shielding layer 300 can also be used to shield components (such as driving circuit elements, light-emitting elements, etc.) disposed in the circuit wiring area 105. Figure 7 In the embodiment, the outline of the light shielding layer 300 is a combination of the driving electrode area 102 and the circuit wiring area 105. In other words, the distribution area of ​​the light shielding layer 300 defines the driving electrode area 102 and the circuit wiring area 105. In other embodiments, the outline of the light shielding layer 300 may selectively correspond only to the outline of the circuit wiring area 105 of the transparent display panel 100. The light shielding layer 300 may be applied to Figure 5 and Figure 6 The transparent display panel 200, 200a, and Figure 5 and Figure 6The arc-shaped profile R205 at the intersection of the circuit wiring regions 205 , 205 a and the driving electrode regions 202 , 202 a and the arc-shaped profile of the driving electrode region 202 a at the corner T202 a may be defined by the light shielding layer 300 .

[0090] The first signal lines 310, 312, 314 and the second signal lines 320, 322, 324 are used to connect the driving electrodes and / or driving circuit elements disposed in the driving electrode region 102 and transmit electrical signals. The first signal lines 310, 312, 314 and the second signal lines 320, 322, 324 extend along the circuit wiring region 105, and specifically, at least one first signal line 310, 312, 314 and at least one second signal line 320, 322, 324 are disposed in each circuit wiring region 105. The first signal lines 310, 312, 314 and the second signal lines 320, 322, 324 may be formed of at least two conductive layers, and the first signal lines 310, 312, 314 and the second signal lines 320, 322, 324 are electrically independent of each other. In this embodiment, each of the first signal lines 310 , 312 , and 314 is used to transmit a signal in the first direction D1 , and each of the second signal lines 320 , 322 , and 324 is used to transmit a signal in the second direction D2 .

[0091] The first signal lines 310, 312, 314 and the second signal lines 320, 322, 324 are all non-linear routing lines, and each signal line may include a plurality of serial sections and a plurality of meandering sections. For example, the first signal line 310 includes a serial section 310A and a meandering section 310B, and the first signal line 310 is used, for example, to transmit an electrical signal in row R1. In the first signal line 310, each serial section 310A extends along the corresponding first direction string 112 in row R1 and continuously passes through the three driving electrode regions 102 in the first direction string 112, and each meandering section 310B is connected between two serial sections 310A and the meandering section 310B meanders between the first direction string 112 in row R1 and the first direction string 112 in row R2. Similarly, the second signal line 320 includes a serial section 320A and a meandering section 320B, and the second signal line 320 is used, for example, to transmit an electrical signal in column L1. In the second signal line 320, each series segment 320A extends along the corresponding second direction string 114 in the row L1 and continuously passes through the three driving electrode regions 102 in the second direction string 114, and each winding segment 320B is connected between two series segments 320A and the winding segment 320B winds between the second direction string 114 in the row L1 and the second direction string 114 in the row L2. The row R1 and the row R2 are adjacent rows, and the column L1 and the column L2 are adjacent columns.

[0092] Please refer to Figure 7In the first signal line 310, all the series segments 310A of the first signal line 310 extend along the first direction strings 112 arranged on the same row R1. However, the first direction strings 112 on the same row R1 are spaced apart from each other, and in order to form a continuous routing, a meandering segment 310B is provided between adjacent series segments 310A. The meandering segment 310B includes two first sub-segments 310B1 and one second sub-segment 310B2. The extension direction of the first sub-segment 310B1 is different from that of the series segment 310A, and the extension direction of the second sub-segment 310B2 may be the same as that of the series segment 310A, but is not limited thereto.

[0093] Specifically, a first sub-segment 310B1 of the meandering segment 310B extends from the driving electrode region 102 at the edge of the first direction string 112 of the row R1 along the corresponding second circuit wiring region 108 to the driving electrode region 102 in the middle of the first direction string 112 of the adjacent row R2. The second sub-segment 310B2 of the meandering segment 310B extends from the end of the first sub-segment 310B1 along the first direction string 112 of the adjacent row R2 to the driving electrode region 102 at the edge. Another first sub-segment 310B1 of the meandering segment 310B extends from the driving electrode region 102 at the edge of the first direction string 112 of the adjacent row R2 along the corresponding second circuit wiring region 108 to the first direction string 112 of the row R1, and is connected to another series segment 310A in another first direction string 112.

[0094] The above is a connection between a series segment 310A and a meandering segment 310B in the first signal line 310, and according to the above connection method, multiple series segments 310A and multiple meandering segments 310B are connected to form a continuous first signal line 310. In summary, the series segment 310A extends along the first direction string 112 of the corresponding row R1, and the second sub-segment 310B2 of the meandering segment 310B extends along the first direction string 112 of the adjacent row R2. One end of the second sub-segment 310B2 is connected to the end of the series segment 310A through the first sub-segment 310B1, and the other end of the second sub-segment 310B2 is connected to the end of another series segment 310A of the row R1 through another first sub-segment 310B1. In addition, the meandering sections of the first signal lines 310 , 312 and 314 (refer to the meandering section 310B of the first signal line 310 ) may be arranged along an oblique direction, that is, the meandering sections of adjacent signal lines are staggered in the first direction D1 , but are not arranged in parallel in the second direction D2 .

[0095] Also refer to Figure 7In the second signal line 320, the series section 320A of the second signal line 320 extends along the second direction string 114 arranged on the same column L1. Each second direction string 114 in the same column L1 is spaced from each other. In order to form a continuous routing, a meandering section 320B is set between adjacent series sections 320A. The meandering section 320B includes two first sub-segments 320B1 and a second sub-segment 320B2. The extension directions of the first sub-segment 320B1 and the second sub-segment 320B2 are different, and the extension direction of the second sub-segment 320B2 can be the same as that of the series section 320A. A first sub-segment 320B1 of the meandering section 320B extends from the driving electrode area 102 at the edge of the second direction string 114 of the column L1 along the corresponding first circuit routing area 106 to the driving electrode area 102 in the middle of the second direction string 114 of the adjacent column L2. The second sub-segment 320B2 of the meandering segment 320B extends along the second direction string 114 of the adjacent row L2 to the driving electrode region 102 at the edge of the second direction string 114 of the row L2 to connect the two first sub-segments 320B1. Another first sub-segment 320B1 of the meandering segment 320B extends from the driving electrode region 102 at the edge of the second direction string 114 of the row L2 along the corresponding first circuit wiring region 106 toward the row L1 and is connected to another series segment 320A in another second direction string 114.

[0096] The above is a connection between a series segment 320A and a meandering segment 320B in the second signal line 320. According to the above connection method, multiple series segments 320A and multiple meandering segments 320B are connected to form a second signal line 320. In summary, the series segment 320A extends along the second direction string 114 of the corresponding column L1, and the second sub-segment 320B2 of the meandering segment 320B extends along the second direction string 114 of the adjacent column L2. One end of the second sub-segment 320B2 is connected to the end of another series segment 310A of the column L1 through the first sub-segment 320B1. In addition, the meandering segments of the second signal lines 320, 322 and 324 (refer to the meandering segment 320B of the second signal line 320) can be arranged along the oblique direction, that is, the meandering segments of adjacent signal lines are staggered with each other in the second direction D2, and are not arranged in parallel along the first direction D1.

[0097] The series segments 310A and 320A of the first signal line 310 and the second signal line 320 are electrically connected through the meandering segments 310B and 320B, so that the first signal line 310 and the second signal line 320 are not limited to extending in the same row or the same column. Under such a layout, each circuit routing area 105 is provided with at least one first signal line 310 and at least one second signal line 320. For example, Figure 7For the second circuit wiring area 108 provided with one of the first sub-segments 310B1, the second circuit wiring area 108 may be provided with one of the second sub-segments 320B2 of the second signal line 320 in addition to the first sub-segment 310B1, and may even be provided with one of the extension segments 322A of the second signal line 322. In addition, the signal lines provided in each circuit wiring area 105 may be single-layer side-by-side wirings, multi-layer stacked wirings, or a combination of the above.

[0098] Figure 8 4 is a top view of a transparent display panel 400 using an organic light emitting diode 410 as a display element according to an embodiment of the present invention. The transparent display panel 400 has a driving electrode area 402, an optically transparent area 404, and a circuit wiring area 405. The circuit wiring area 405 can be divided into a first circuit wiring area 406 and a second circuit wiring area 408 according to different extension directions. Similar to the layout of the transparent display panel 100, the driving electrode areas 402 are arranged in an array along the first direction D1 and the second direction D2. The first circuit wiring area 406 connects the driving electrode areas 402 at intervals along the first direction D1, and the second circuit wiring area 408 connects the driving electrode areas 402 at intervals along the second direction D2. Specifically, the first circuit wiring area 406 connects every three driving electrode areas 402 arranged along the first direction D1 into a string, and the second circuit wiring area 408 connects every three driving electrode areas 402 arranged along the second direction D2 into a string.

[0099] The transparent display panel 400 includes an organic light emitting diode 410, and the organic light emitting diode 410 is a display element for displaying picture information. In the present embodiment, three organic light emitting diodes 410 are arranged in each driving electrode region 402 to define sub-pixels 410a, sub-pixels 410b and sub-pixels 410c. For example, sub-pixel 410a is a blue sub-pixel, sub-pixel 410b is a green sub-pixel, and sub-pixel 410c is a red sub-pixel. The light emitting areas of sub-pixels 410a, sub-pixels 410b and sub-pixels 410c can be adjusted according to the required light emitting effect. For example, the blue sub-pixel 410a can have a larger light emitting area relative to sub-pixels 410b and sub-pixels 410c, but is not limited thereto. In this embodiment, the sub-pixel 410b and the sub-pixel 410c are arranged along the second direction D2 and located on the same side of the sub-pixel 410a, but the arrangement and number of the sub-pixels 410a, 410b, and 410c are not limited to this embodiment.

[0100] The organic light emitting diode 410 has a self-luminous property and does not require an additional light source, and the transparent display panel 400 may further include a plurality of signal lines (not shown) to provide the organic light emitting diode 410 with electrical signals required for luminescence. The signal lines for providing electrical signals may extend along the first circuit wiring area 406 and the second circuit wiring area 408. For example, Figure 7 The distribution of the first signal lines 310, 312, 314 and the second signal lines 320, 322, 324 can be applied to the present embodiment to provide the signals required by the organic light emitting diode 410. In addition, the transparent display panel 400 may further include: Figure 7 The shading layer shown.

[0101] Fig. 9 1 is a top view of a transparent display panel 500 using a micro-light emitting diode 510 as a display element according to an embodiment of the present invention. The transparent display panel 500 has a driving electrode area 502, an optically transparent area 504, and a circuit wiring area 505. The circuit wiring area 505 can be divided into a first circuit wiring area 506 and a second circuit wiring area 508 according to different extension directions. Similar to the layout of the transparent display panel 100, the driving electrode areas 502 are arranged in an array along the first direction D1 and the second direction D2. The first circuit wiring area 506 connects every three driving electrode areas 502 at intervals along the first direction D1, and the second circuit wiring area 508 connects every three driving electrode areas 502 at intervals along the second direction D2. Specifically, the first circuit wiring area 506 connects every three driving electrode areas 502 arranged along the first direction D1 into a string, and the second circuit wiring area 508 connects every three driving electrode areas 502 arranged along the second direction D2 into a string.

[0102] The transparent display panel 500 includes a micro-LED 510, and the micro-LED 510 is a display element for displaying picture information. Three micro-LEDs 510 are arranged in each driving electrode area 502 to define sub-pixels 510a, sub-pixels 510b and sub-pixels 510c of different colors. Sub-pixels 510a, sub-pixels 510b and sub-pixels 510c can be arranged along the first direction D1, but can also be arranged in different ways depending on different designs. The micro-LED 510 has a self-luminous property without the need for an additional light source, and the transparent display panel 500 may include a plurality of signal lines (not shown) to provide the micro-LED 502 with electrical signals required for luminescence. The signal lines for providing electrical signals can extend and distribute along the first circuit wiring area 506 and the second circuit wiring area 508. For example, Figure 7 The distribution of the signal lines can be applied in this embodiment to provide the signals required by the micro-LED 502. In addition, the transparent display panel 500 may further include the following Figure 7 The shading layer shown.

[0103] Fig.10 is a schematic diagram of a transparent display panel 600 using liquid crystal material as a display element. Fig.10 The transparent display panel 600 includes two substrates 602 and a liquid crystal layer 604, and the liquid crystal layer 604 is enclosed between the two substrates 602. In some embodiments, the transparent display panel 600 may further include components such as a polarizing plate and an alignment film. In addition, the transparent display panel 600 may be provided with a light shielding layer (not shown) on one of the two substrates 602. The transparent display panel 600 will be described in detail below.

[0104] Fig.11 6 is a top view of a transparent display panel 600 using liquid crystal material. The transparent display panel 600 may have a driving electrode region 606, an optically transparent region 608, and a circuit wiring region 610. The circuit wiring region 610 may be divided into a first circuit wiring region 612 and a second circuit wiring region 614 according to different extension directions. The circuit wiring region 610 may connect every three driving electrode regions 606 at intervals along the first direction D1 and the second direction D2 to enclose an optically transparent region 608 having a substantially L-shaped outline. Similar to the aforementioned transparent display panel, the driving electrode regions 606 may be arranged in an array along the first direction D1 and the second direction D2 to define a plurality of pixel units 620, the circuit wiring region 610 connects the driving electrode regions 606 at intervals, and the optically transparent region 608 is surrounded by the driving electrode regions 606 and the circuit wiring region 610.

[0105] Each pixel unit 620 of the transparent display panel 600 includes a driving element (not shown), such as a thin film transistor, disposed in the driving electrode area 606, and a sub-pixel electrode 620a, a sub-pixel electrode 620b, and a sub-pixel electrode 620c disposed in the optically transparent area 608. Specifically, the driving element in each driving electrode area 606 can be correspondingly connected to the sub-pixel electrode 620a, the sub-pixel electrode 620b, and the sub-pixel electrode 620c. In addition, the transparent display panel 600 may also include a plurality of signal lines (not shown) to transmit the electrical signals required by the driving elements. The signal lines for providing electrical signals can extend and distribute along the first circuit wiring area 612 and the second circuit wiring area 614. For example, Figure 7 The signal line distribution can be applied to the present embodiment to provide the signal required by the driving element. In addition, the transparent display panel 600 may further include the following Figure 7 The shading layer shown.

[0106] In summary, the present invention aims to improve the image blur problem caused by densely distributed wiring in existing transparent display panels. In an embodiment of the present invention, the distribution of the circuit wiring area is modified to reduce the obvious diffraction phenomenon caused by multiple wirings in the transparent display panel, while increasing the area of ​​the optical transparent area, thereby improving the imaging quality of the transparent display panel and maintaining a certain degree of transparency of the transparent display panel.

[0107] Although the present invention has been disclosed as above by way of embodiments, it is not intended to limit the present invention. Any person skilled in the art may make some changes and modifications without departing from the concept and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the claims.

Claims

1. A transparent display panel, comprising: A plurality of driving electrode regions, wherein the driving electrode regions are arranged in an array along a first direction and a second direction; Multiple circuit routing areas have an average light transmittance of less than 10 percent; as well as A plurality of optically transparent regions having an average light transmittance greater than that of the driving electrode region and the circuit wiring region; The first direction intersects the second direction, and the circuit wiring area connects the driving electrode areas in intervals, so that each of the optically transparent areas crosses part of the driving electrode areas; Wherein the transparent display panel comprises a plurality of first signal lines and a plurality of second signal lines; The first signal line and the second signal line extend along the circuit wiring area, and each circuit wiring area is provided with at least one first signal line and at least one second signal line. The circuit routing area is divided into: A plurality of first circuit wiring regions, connecting every three intervals of the driving electrode regions into a plurality of first direction strings along the first direction, and adjacent first direction strings in the first direction are spaced apart from each other; as well as A plurality of second circuit wiring regions connect every three intervals of the driving electrode regions into a plurality of second direction strings along the second direction, and adjacent second direction strings in the second direction are spaced apart from each other. 2 . The transparent display panel as claimed in claim 1 , wherein the driving electrode regions are distributed at equal intervals to define a plurality of pixel units, and wherein an area of ​​each of the optically transparent regions is one to three times an area of ​​each of the pixel units. 3 . The transparent display panel as claimed in claim 1 , wherein the optically transparent region crosses between adjacent first direction strings and crosses between adjacent second direction strings. 4 . The transparent display panel as claimed in claim 1 , wherein a middle driving electrode region among the three driving electrode regions in each of the first direction strings is an edge driving electrode region among the three driving electrode regions in one of the second direction strings. 5 . The transparent display panel as claimed in claim 1 , wherein a middle driving electrode region among the three driving electrode regions of each of the second direction strings is an edge driving electrode region among the three driving electrode regions of one of the first direction strings. 6 . The transparent display panel as claimed in claim 1 , wherein an extension direction of the first circuit wiring area is not parallel to the first direction. 7 . The transparent display panel as claimed in claim 1 , wherein an extension direction of the second circuit wiring area is not parallel to the second direction.

8. A transparent display panel as described in claim 1, wherein each of the first signal lines comprises a plurality of series segments and a plurality of winding segments, each of the series segments extends along a corresponding first direction string, the winding segments are connected between the series segments, and the winding segments meander between the corresponding first direction string and an adjacent first direction string.

9. A transparent display panel as described in claim 8, wherein the winding segment includes two first sub-segments and one second sub-segment, the two first sub-segments respectively extend from the corresponding first direction string to the adjacent first direction string along the corresponding second direction string, the second sub-segment extends along the adjacent first direction string, and the second sub-segment is connected between the two first sub-segments.

10. A transparent display panel as described in claim 1, wherein each of the second signal lines includes a plurality of series segments and a plurality of winding segments, each of the series segments extends along a corresponding second direction string, the winding segments are connected between the series segments, and the winding segments meander between the corresponding second direction string and an adjacent second direction string.

11. A transparent display panel as described in claim 10, wherein the winding segment includes two first sub-segments and one second sub-segment, the two first sub-segments respectively extend from the corresponding second direction string to the adjacent second direction string along the corresponding first direction string, the second sub-segment extends along the adjacent second direction string, and the second sub-segment is connected between the two first sub-segments. 12 . The transparent display panel as claimed in claim 1 , further comprising a light shielding layer, wherein the light shielding layer completely covers the circuit wiring area. 13 . The transparent display panel as claimed in claim 12 , wherein the light shielding layer has an arc-shaped profile at the intersection of the circuit wiring area and the driving electrode area. 14 . The transparent display panel as claimed in claim 1 , wherein the first signal line and the second signal line are formed of at least two conductive layers, and the first signal line and the second signal line are electrically independent of each other.

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