Transparent display

Abstract

A transparent display includes a substrate, a driving circuit set, a light emitting array and a black matrix layer. The substrate has a display area and a peripheral circuit area. The driving circuit set is disposed on the substrate and located in the peripheral circuit area. The light emitting array is disposed on the substrate and located in the display area, wherein the light emitting array is electrically connected to the driving circuit set. The light emitting array includes a plurality of light emitting elements. The black matrix layer is disposed on the substrate and covers the driving circuit set and the light emitting array, but does not cover the light emitting elements, wherein the black matrix layer has a plurality of light transmission openings distributed in the display area and the peripheral circuit area, and the opening ratio of the black matrix layer in the display area and the peripheral circuit area is greater than 50%.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to a display, and particularly relates to a transparent display. BACKGROUND

[0002] Current display technology has developed a transparent display. Such a display not only can display images, but also presents a transparent appearance when no image is displayed, so that light can penetrate the transparent display. Therefore, in the aspect of vehicle display, such a transparent display does not completely block the driver's view and is suitable as a head-up display (HUD) for vehicles.

[0003] The existing transparent display generally has a display area and a peripheral circuit area surrounding the display area, wherein the image formed by the transparent display is only displayed in the display area and does not appear in the peripheral circuit area. When the existing transparent display does not display an image, the display area presents a transparent appearance. However, most of the current transparent displays are not completely transparent when no image is displayed.

[0004] Specifically, the peripheral circuit area is generally opaque. Whether the transparent display displays an image or not, the transparent display presents a dark frame formed by the peripheral circuit area in appearance. Such a dark frame sometimes affects the aesthetics of the transparent display, and in the aspect of vehicle display, the dark frame more or less hinders the driver's view, which inevitably has a bad impact on driving safety. SUMMARY

[0005] At least one embodiment of the present disclosure provides a transparent display having a transparent peripheral circuit area.

[0006] The transparent display provided by at least one embodiment of the present disclosure includes a substrate, a drive circuit group, a light emitting array, and a black matrix layer. The substrate has a display area and a peripheral circuit area. The drive circuit group is disposed on the substrate and located in the peripheral circuit area. The light emitting array is disposed on the substrate and located in the display area, wherein the light emitting array is electrically connected to the drive circuit group. The light emitting array includes a plurality of light emitting elements. The black matrix layer is disposed on the substrate and covers the drive circuit group and the light emitting array, but does not cover these light emitting elements, wherein the black matrix layer has a plurality of light transmission openings distributed in the display area and the peripheral circuit area, and the aperture ratio of the black matrix layer in the display area and the peripheral circuit area is greater than 50%.

[0007] In at least one embodiment of the present disclosure, the above-mentioned drive circuit group includes a plurality of shift register units and a plurality of emission circuit units. These shift register units and these emission circuit units are electrically connected to the light emitting array. The black matrix layer completely covers these shift register units and these emission circuit units, and these shift register units and these emission circuit units are not located in these light transmission openings.

[0008] In at least one embodiment of the present application, one of the light transmission openings is located between the displacement temporary storage units and the emission circuit units adjacent to each other.

[0009] In at least one embodiment of the present application, the displacement temporary storage units are arranged along a first direction, and the emission circuit units are arranged along the first direction.

[0010] In at least one embodiment of the present application, the emission circuit units are located between the displacement temporary storage units and the light emitting array.

[0011] In at least one embodiment of the present application, the displacement temporary storage units are located between the emission circuit units and the light emitting array.

[0012] In at least one embodiment of the present application, the displacement temporary storage units and the emission circuit units adjacent to each other are arranged along a second direction, and the first direction is different from the second direction.

[0013] In at least one embodiment of the present application, the transparent display further comprises at least one wiring line. The wiring line is electrically connected to the light emitting array and is not located in the light transmission openings, wherein the wiring line extends along the first direction, and the black matrix layer completely covers the wiring line.

[0014] In at least one embodiment of the present application, a plurality of light transmission openings are arranged along the wiring line.

[0015] In at least one embodiment of the present application, each displacement temporary storage unit comprises a temporary storage circuit body and a first output portion. The first output portion is electrically connected to the temporary storage circuit body, wherein the temporary storage circuit bodies and the first output portions of two adjacent displacement temporary storage units surround one of the light transmission openings.

[0016] In at least one embodiment of the present application, each emission circuit unit comprises an emission circuit body and a second output portion. The second output portion is electrically connected to the emission circuit body, wherein the emission circuit bodies and the second output portions of two adjacent emission circuit units surround one of the light transmission openings.

[0017] In at least one embodiment of the present application, the displacement temporary storage units and the emission circuit units are staggered arranged along the first direction.

[0018] Based on the above, since the aperture ratio of the black matrix layer in the display area and the peripheral circuit area is greater than 50%, the transparent display not only presents a transparent appearance in the part of the display area 111, but also presents a transparent appearance in the part of the peripheral circuit area. In this way, not only the aesthetics of the transparent display can be improved, but also in the application of vehicle display, there is no dark frame that hinders the driver's sight, so as to improve the driving safety of the driver. BRIEF DESCRIPTION OF DRAWINGS

[0019] FIG. 1A This is a top view schematic diagram of a transparent display according to at least one embodiment of the present invention.

[0020] FIG. 1B yes FIG. 1A A partial top-view diagram located within the dashed frame.

[0021] FIG. 1C yes FIG. 1B A magnified view of a portion of the image.

[0022] FIG. 1D and FIG. 1E yes FIG. 1C A schematic diagram of the cross section drawn along section 1-1 of the central axis.

[0023] FIG. 1F to FIG. 1H Show respectively FIG. 1B Circuit diagram of the intermediate displacement temporary storage unit, the transmitting circuit unit and the pixel circuit unit.

[0024] FIG. 2 This is a partial top view of a transparent display according to another embodiment of the present invention.

[0025] FIG. 3 This is a partial top view of a transparent display according to another embodiment of the present invention.

[0026] FIG. 4 This is a partial top view of a transparent display according to another embodiment of the present invention.

[0027] FIG. 5A and FIG. 5B This is a partial top view of a transparent display according to another embodiment of the present invention.

[0028] Explanation of reference numerals in the attached figures:

[0029] 100, 200, 300, 400, 500: Transparent displays

[0030] 110: Substrate

[0031] 111: Display area

[0032] 112: Surrounding Line Area

[0033] 120, 220, 320, 520: Drive circuit group

[0034] 121, 221, 321, 521: Displacement temporary storage units

[0035] 122, 222, 322, 522: Transmitter circuit unit

[0036] 130, 530: Light-emitting array

[0037] 131: light emitting element

[0038] 132: pixel circuit unit

[0039] 132p, 180: contact pad

[0040] 132s: sub-pixel region

[0041] 140, 340, 440, 540: black matrix layer

[0042] 140h, 340h, 440h, 540h: light-transmitting opening

[0043] 140u: grid unit

[0044] 141: first light-shielding strip

[0045] 142: second light-shielding strip

[0046] 143, 543: light-shielding block

[0047] 150: transparent layer

[0048] 191: electrical connector

[0049] 192: drive element

[0050] 431: flat cable

[0051] 521m: temporary storage circuit main body

[0052] 521p: first output portion

[0053] 522m: emission circuit main body

[0054] 522p: second output portion

[0055] CE1, CS1, TC1: capacitor

[0056] CK1, CK2: clock generator

[0057] D1: first direction

[0058] D2: second direction

[0059] EM1, EM2, SR1, SR2: output terminal

[0060] SL1: scan line

[0061] TE1, TP1, TS1, TS2: transistor

[0062] V0: low voltage level

[0063] V1: high voltage level

[0064] VDD: operating voltage

[0065] VSS: common voltage DETAILED DESCRIPTION

[0066] In the following detailed description, for the purposes of clarity and illustration, the size, location and / or shape of the elements (e.g., layers, films, substrates and / or regions) as shown in the figures can be exaggerated relative to other elements, removed, increased, decreased, and / or otherwise modified, for purposes of explanation. Thus, the illustrations provided herein are illustrative in nature and are not intended to be limiting of the scope or application of the present disclosure. For example, the shapes of elements as shown in the figures can be varied, for example, from a circular shape to a rectangular or other shape. Therefore, the figures are not intended to portray the actual shape of the elements as they can be constructed and / or used. The present disclosure should be understood, various modifications can be made that retain the spirit or principles of the present disclosure. For example, further to the figures, planar surfaces illustrated in the figures can have rough and / or nonlinear features, and acute angles illustrated in the figures can be rounded. Therefore, the elements illustrated in the figures are schematic in nature and their shapes are not intended to be limiting of the scope of the present disclosure.

[0067] Second, the use of "about," "approximately," or "substantially" in the present disclosure is intended to account for variations in measurement, as well as technical and / or other limitations in the art. For example, two elements (e.g., a planar surface or a trace) are "substantially parallel" or "substantially perpendicular" to each other, meaning that the parallelism or perpendicularity between the elements can include a range of allowable deviations due to measurement errors, limitations of the measurement system or process, or other factors.

[0068] Further, "about" can mean within one or more standard deviations of the values described above, such as within ±30%, ±20%, ±10%, or ±5%. The use of "about," "approximately," or "substantially" in the present disclosure can select an acceptable range of deviation or standard deviation depending on the optical, etching, mechanical, or other properties, and not all properties are to be applied with a single standard deviation.

[0069] FIG. 1A is a top view schematic of a transparent display according to at least one embodiment of the present disclosure. Referring to FIG. 1A , the transparent display 100 includes a substrate 110, at least one drive circuit set 120, and a light emitting array 130, wherein the drive circuit set 120 and the light emitting array 130 are disposed on the substrate 110. In FIG. 1A the illustrated embodiment, the transparent display 100 includes a plurality of drive circuit sets 120. In other embodiments, the transparent display 100 can include only one drive circuit set 120. Thus,FIG. 1A The number of the driving circuit groups 120 shown is merely for illustration and is not limited. FIG. 1A

[0070] The substrate 110 has a display area 111 and a peripheral circuit area 112, where the peripheral circuit area 112 can be located around the display area 111. For example, the shape of the display area 111 can be substantially rectangular, and the shape of the peripheral circuit area 112 can be substantially U-shaped and surround three connected edges of the display area 111. The driving circuit groups 120 are located within the peripheral circuit area 112, and the light emitting array 130 is located within the display area 111 and electrically connected to the driving circuit groups 120, where the light emitting array 130 can be located between the driving circuit groups 120, as shown. FIG. 1A FIG. 1A

[0071] The transparent display 100 can further include a plurality of contact pads 180, an electrical connector 191, and at least one driving element 192, where in the embodiment shown, the transparent display 100 can include a plurality of driving elements 192, but in other embodiments, the number of driving elements 192 included by the transparent display 100 can be only one. In addition, the driving element 192 can be a chip. FIG. 1A

[0072] The contact pads 180 are all located within the peripheral circuit area 112 and can be located between the driving circuit groups 120, where the contact pads 180 are electrically connected to the light emitting array 130 and the driving circuit groups 120. The electrical connector 191 is disposed on the substrate 110 and covers the contact pads 180. In addition, the electrical connector 191 can be a circuit board, such as a flexible printed circuit (FPC).

[0073] The electrical connector 191 is electrically connected to the contact pads 180. For example, an anisotropic conductive film (ACF) can be disposed between the contact pads 180 and the electrical connector 191, so that the anisotropic conductive film electrically connects the electrical connector 191 and the contact pads 180. In this way, the electrical signal, such as a pixel signal, generated by the driving element 192 can be transmitted to the light emitting array 130 via the electrical connector 191 and the contact pads 180, so that the light emitting array 130 emits light.

[0074] FIG. 1B is FIG. 1A a partial top view schematic diagram located within the dashed box. Please refer to FIG. 1A and FIG. 1B ​​​​The light emitting array 130 includes a plurality of light emitting elements 131 and a plurality of pixel circuit units 132. The light emitting elements 131 are disposed on the pixel circuit units 132, and the pixel circuit units 132 are electrically connected to the driving circuit groups 120 and the light emitting elements 131, so that the pixel circuit units 132 and the driving circuit groups 120 can control the light emitting elements 131.

[0075] In addition, since the pads 180 are electrically connected to the light emitting array 130 and the driving circuit groups 120, and the electrical connector 191 is electrically connected to the pads 180, the driving element 192 can transmit an electrical signal (such as a pixel signal) to the light emitting elements 131 of the light emitting array 130 through the electrical connector 191 and the pads 180, so as to control the light emitting elements 131 to emit light.

[0076] Each pixel circuit unit 132 has a plurality of sub-pixel regions 132s, such as three sub-pixel regions 132s, and the light emitting elements 131 are disposed in the sub-pixel regions 132s, respectively. The sub-pixel regions 132s of one pixel circuit unit 132 can constitute a main pixel region. In the same pixel circuit unit 132, the light emitting elements 131 in different sub-pixel regions 132s are not the same, and the light emitting elements 131 disposed on the same pixel circuit unit 132 can emit light of different colors, such as red light, green light, and blue light, so that the transparent display 100 can display images.

[0077] In the embodiment shown in FIG. 1B The light emitting elements 131 can be light emitting diodes (LEDs), such as micro-LEDs or mini-LEDs (mLEDs). In addition, in other embodiments, the light emitting elements 131 can also be organic light emitting diodes (OLEDs), so the light emitting elements 131 are not limited to micro-LEDs or mini-LEDs.

[0078] The transparent display 100 further includes a black matrix layer 140 disposed on the substrate 110. The black matrix layer 140 has a mesh shape, and the black matrix layer 140 has a plurality of light transmission openings 140h distributed in the display region 111 and the peripheral circuit region 112. The driving circuit groups 120 include a plurality of shift register units 121 and a plurality of emission circuit units 122, wherein the shift register units 121 and the emission circuit units 122 are electrically connected to the pixel circuit units 132 of the light emitting array 130. In addition, the pixel circuit units 132, the shift register units 121, and the emission circuit units 122 are not located in any light transmission opening 140h, as shown in FIG. 1B The light emitting array 130 includes a plurality of light emitting elements 131 and a plurality of pixel circuit units 132. The light emitting elements 131 are disposed on the pixel circuit units 132, and the pixel circuit units 132 are electrically connected to the driving circuit groups 120 and the light emitting elements 131, so that the pixel circuit units 132 and the driving circuit groups 120 can control the light emitting elements 131.

[0075] In addition, since the pads 180 are electrically connected to the light emitting array 130 and the driving circuit groups 120, and the electrical connector 191 is electrically connected to the pads 180, the driving element 192 can transmit an electrical signal (such as a pixel signal) to the light emitting elements 131 of the light emitting array 130 through the electrical connector 191 and the pads 180, so as to control the light emitting elements 131 to emit light.

[0076] Each pixel circuit unit 132 has a plurality of sub-pixel regions 132s, such as three sub-pixel regions 132s, and the light emitting elements 131 are disposed in the sub-pixel regions 132s, respectively. The sub-pixel regions 132s of one pixel circuit unit 132 can constitute a main pixel region. In the same pixel circuit unit 132, the light emitting elements 131 in different sub-pixel regions 132s are not the same, and the light emitting elements 131 disposed on the same pixel circuit unit 132 can emit light of different colors, such as red light, green light, and blue light, so that the transparent display 100 can display images.

[0077] In the embodiment shown in FIG. 1B The light emitting elements 131 can be light emitting diodes (LEDs), such as micro-LEDs or mini-LEDs (mLEDs). In addition, in other embodiments, the light emitting elements 131 can also be organic light emitting diodes (OLEDs), so the light emitting elements 131 are not limited to micro-LEDs or mini-LEDs.

[0078] The transparent display 100 further includes a black matrix layer 140 disposed on the substrate 110. The black matrix layer 140 has a mesh shape, and the black matrix layer 140 has a plurality of light transmission openings 140h distributed in the display region 111 and the peripheral circuit region 112. The driving circuit groups 120 include a plurality of shift register units 121 and a plurality of emission circuit units 122, wherein the shift register units 121 and the emission circuit units 122 are electrically connected to the pixel circuit units 132 of the light emitting array 130. In addition, the pixel circuit units 132, the shift register units 121, and the emission circuit units 122 are not located in any light transmission opening 140h, as shown in FIG. 1B

[0079] In FIG. 1B the illustrated embodiment, the shift register units 121 and the emission circuit units 122 are arranged along a first direction D1, such that the shift register units 121 are arranged along the first direction D1 in at least one row, and the emission circuit units 122 are arranged along the first direction D1 in at least one row. The emission circuit units 122 are located between the shift register units 121 and the light emitting array 130, and the shift register units 121 and the emission circuit units 122 adjacent to each other are arranged along a second direction D2, wherein the first direction D1 is different from the second direction D2. For example, the first direction D1 can be substantially perpendicular to the second direction D2, as FIG. 1B illustrated.

[0080] Therefore, in FIG. 1B the illustrated embodiment, the shift register units 121 and the emission circuit units 122 can be arranged in an array along the first direction D1 and the second direction D2. In addition, the pixel circuit units 132 can also be arranged in an array along the first direction D1 and the second direction D2. In FIG. 1C the illustrated embodiment, in the display area 111, four pixel circuit units 132 adjacent to each other can surround one light transmission opening 140h. In the peripheral circuit area 112, one light transmission opening 140h can be located between the shift register units 121 and the emission circuit units 122 adjacent to each other.

[0081] FIG. 1B is FIG. 1D a partial enlarged view, and FIG. 1E and FIG. 1C is FIG. 1D a cross-sectional view taken along line 1-1 in FIG. 1E is a cross-sectional view of the transparent display 100 in the display area 111, and FIG. 1C to FIG. 1E is a cross-sectional view of the transparent display 100 in the peripheral circuit area 112. Please refer to FIG. 1C , the black matrix layer 140 covers the drive circuit groups 120 and the light emitting array 130, but does not cover the light emitting elements 131, wherein the black matrix layer 140 completely covers the shift register units 121 and the emission circuit units 122, so as to avoid the shift register units 121 and the emission circuit units 122 reflecting light and causing adverse effects on the image.

[0082] The black matrix layer 140 can include a plurality of first light-shielding strips 141 and a plurality of second light-shielding strips 142. The first light-shielding strips 141 extend along a first direction Dl, and the second light-shielding strips 142 extend along a second direction D2, wherein the first light-shielding strips 141 and the second light-shielding strips 142 are connected to each other. In the embodiment shown, the plurality of first light-shielding strips 141 are arranged along the first direction Dl to form light-shielding vertical strips (not shown), and the plurality of second light-shielding strips 142 are arranged along the second direction D2 to form light-shielding horizontal strips (not shown), wherein the light-shielding vertical strips and the light-shielding horizontal strips are staggered with each other, as shown in FIG. 1A. FIG. 1C

[0083] The black matrix layer 140 can further include a plurality of light-shielding blocks 143, wherein the light-shielding blocks 143 connect the first light-shielding strips 141 and the second light-shielding strips 142. For example, each light-shielding block 143 connects and is located between two first light-shielding strips 141 and two second light-shielding strips 142 that are adjacent to each other, so that the shape of each light-transmitting opening 140h can form a reverse L shape. FIG. 1C

[0084] The light-shielding blocks 143 cover the displacement temporary storage units 121, the emission circuit units 122, and the pixel circuit units 132, respectively. The first light-shielding strips 141, the second light-shielding strips 142, and the light-shielding blocks 143 define the light-transmitting openings 140h. In the embodiment shown in FIG. 1A, a single light-transmitting opening 140h can be surrounded by two first light-shielding strips 141, two second light-shielding strips 142, and one light-shielding block 143. FIG. 1C

[0085] In addition, the black matrix layer 140 with a mesh shape can have a plurality of mesh units 140u, wherein FIG. 1C only one mesh unit 140u is shown, and the mesh unit 140u is depicted by a plurality of dashed lines (for example, four dashed lines). In the embodiment shown in FIG. 1A, each mesh unit 140u has one light-transmitting opening 140h, and can be defined by the axis of both the first light-shielding strips 141 and the second light-shielding strips 142. In other words, in the embodiment shown in FIG. 1A, the dashed lines representing the mesh unit 140u are the axes of both the first light-shielding strips 141 and the second light-shielding strips 142. FIG. 1C FIG. 1C

[0086] ​​​​​The above-mentioned axis is equal to the center line of both the first shading bar 141 and the second shading bar 142. Take the first shading bar 141 as an example. In a single first shading bar 141, the distance from the axis of the first shading bar 141 to the opposite sides of the first shading bar 141 is substantially equal. Similarly, in a single second shading bar 142, the distance from the axis of the second shading bar 142 to the opposite sides of the second shading bar 142 is also substantially equal. Therefore, in the grid unit 140u of the transparent display 100, FIG. 1C The virtual straight lines are located between the adjacent two light-transmitting openings 140h and the distance between the adjacent two light-transmitting openings 140h is substantially equal.

[0087] The opening rate of the black matrix layer 140 in the display area 111 and the peripheral circuit area 112 is greater than 50%, where the opening rate can be defined as the ratio between the area of the light-transmitting opening 140h in a single grid unit 140u and the area of the grid unit 140u. Since the opening rate of the black matrix layer 140 in the display area 111 and the peripheral circuit area 112 is greater than 50%, the transparent display 100 not only has a transparent appearance in the display area 111, but also has a transparent appearance in the peripheral circuit area 112. In this way, the aesthetic appearance of the transparent display 100 can be improved, and in the application of the transparent display 100 in a vehicle, the dark frame that obstructs the driver's view is eliminated to improve the driving safety of the driver.

[0088] It is worth mentioning that the transparent display 100 can further include a plurality of transparent layers 150. These transparent layers 150 are all disposed on the substrate 110 and are respectively located in the light-transmitting openings 140h. Therefore, each transparent layer 150 does not overlap with any displacement temporary storage unit 121, emission circuit unit 122, and pixel circuit unit 132, so that light can smoothly penetrate the transparent display 100 from the light-transmitting openings 140h, and the entire transparent display 100 without displaying an image can have a transparent appearance.

[0089] Please refer to FIG. 1D and FIG. 1F to FIG. 1H In the present embodiment, each pixel circuit unit 132 can further have a plurality of connection pads 132p, where the connection pads 132p are respectively located in the sub-pixel areas 132s and are respectively connected to the light-emitting elements 131. In this way, the light-emitting elements 131 can be electrically connected to the pixel circuit unit 132 through the connection pads 132p.

[0090] FIG. 1B The circuit schematic diagrams of the displacement temporary storage unit, the emission circuit unit, and the pixel circuit unit are respectively shown in FIG. 1F to FIG. 1H It should be noted that the displacement temporary storage unit 121, the emission circuit unit 122, and the pixel circuit unit 132 can have various circuit designs, whereFIG. 1F to FIG. 1H The disclosed circuits of the shift register unit 121, the emission circuit unit 122 and the pixel circuit unit 132 are only for illustration. Therefore, FIG. 1F The disclosed circuits are not used to limit the circuit design of the shift register unit 121, the emission circuit unit 122 and the pixel circuit unit 132.

[0091] Each shift register unit 121, each emission circuit unit 122 and each pixel circuit unit 132 can include at least one transistor, for example, a thin film transistor (TFT). Please refer to FIG. 1F For example, the shift register unit 121 can include a plurality of transistors TS1 and TS2, wherein the transistors TS1 and TS2 are similar in structure, and both of the transistors TS1 and TS2 can be thin film transistors.

[0092] The main difference between the transistors TS1 and TS2 is whether the gate and the source are directly electrically connected, that is, whether a short circuit is formed between the gate and the source. For example, FIG. 1F The gate and the source (both not marked) of each transistor TS2 are directly electrically connected, but the gate and the source of each transistor TS1 are not directly electrically connected with each other, so that the function of the transistor TS2 is equivalent to that of a general diode, that is, the transistor TS2 has the function of unidirectional current conduction. In addition, the shift register unit 121 can further include a capacitor CS1, wherein the capacitor CS1 is electrically connected to the gate of one of the transistors TS1, as shown in FIG. 1F .

[0093] The shift register unit 121 can be electrically connected to two clock generators CK1 and CK2. The clock generators CK1 and CK2 can generate two different clock signals respectively and output the clock signals to the shift register unit 121, wherein the clock signals generated by the clock generators CK1 and CK2 can have the same frequency. The shift register unit 121 can also be electrically connected to a low voltage level V0 and an output terminal SR1 of another shift register unit 121 (for example, a previous shift register unit 121), as shown in FIG. 1G . Therefore, the shift register unit 121 can receive the signal output by the other shift register unit 121. In addition, the shift register unit 121 can further include an output terminal SR2, wherein the output terminal SR2 is electrically connected to the pixel circuit unit 132 and another shift register unit 121 (for example, a next shift register unit 121).

[0094] Please refer to FIG. 1GThe transmitting circuit unit 122 may include multiple transistors TE1 and multiple capacitors CE1, wherein the transistors TE1 may be thin-film transistors, and the capacitors CE1 are electrically connected to the multiple transistors TE1. The transmitting circuit unit 122 may be electrically connected to clock generators CK1 and CK2, a low voltage level V0, a ​​high voltage level V1, and the output terminal EM1 of another transmitting circuit unit 122 (e.g., the previous stage transmitting circuit unit 122), such as... FIG. 1H As shown. In addition, the transmitting circuit unit 122 may also include an output terminal EM2, wherein the output terminal EM2 is electrically connected to the pixel circuit unit 132 and another transmitting circuit unit 122 (e.g., the next-stage transmitting circuit unit 122).

[0095] Please see FIG. 1H The pixel circuit unit 132 may include multiple transistors TP1 (e.g., three transistors TP1) and a capacitor TC1, wherein the transistors TP1 may be thin-film transistors, and the capacitor TC1 is electrically connected to a common voltage VSS, the gate of one transistor TP1, and the drain of another transistor TP1. Furthermore, FIG. 1H The pixel circuit unit 132 shown is mainly a circuit that controls a single subpixel area 132s. In other words, FIG. 1H The pixel circuit unit 132 mainly controls the light emission of a single light-emitting element 131.

[0096] exist FIG. 1H In the pixel circuit unit 132, the anode of the light-emitting element 131 is electrically connected to the operating voltage VDD, while the cathode of the light-emitting element 131 is electrically connected to one of the transistors TP1 (e.g., FIG. 2 The source of the transistor TP1 located above is connected to the source of the transmitter circuit unit 122, where the gate of the transistor TP1 is electrically connected to the output terminal EM2 of the transmitter circuit unit 122, and the drain is electrically connected to the source of another transistor TP1.

[0097] Of the two transistors TP1 other than the upper transistor TP1, the gate of the left transistor TP1 is electrically connected to the output terminal SR2 of the shift temporary storage unit 121, and the source and drain of the left transistor TP1 are electrically connected to the scan line SL1, the capacitor TC1, and the gate of the right transistor TP1. The source and drain of the right transistor TP1 are electrically connected to the drain of the upper transistor TP1 and the common voltage VSS, as shown below. FIG. 2 As shown, both the displacement storage unit 121 and the emission circuit unit 122 can be electrically connected to the pixel circuit unit 132, thereby controlling the light-emitting array 130 to emit light and form an image.

[0098] FIG. 1A This is a partial top view of a transparent display according to another embodiment of the present invention. Please refer to... FIG. 1DThe transparent display 200 of the present embodiment is similar to the transparent display 100 of the foregoing embodiment, in that both the transparent display 200 and 100 include the same elements, such as the substrate 110 (shown in FIG. 1E , FIG. 2 and FIG. 3 ), the black matrix layer 140, and the light emitting array 130, and both the transparent display 200 and 100 have substantially the same cross-sectional structure. The differences between the transparent display 200 and 100 are mainly described below, and the same features of the transparent display 200 and 100 are not substantially repeated and not shown.

[0099] In particular, the transparent display 200 further includes a driving circuit group 220, in which the driving circuit group 220 includes a plurality of shift register units 221 and a plurality of emission circuit units 222. The shift register units 221 and the emission circuit units 222 are arranged in multiple rows (at least two rows) along the first direction D1, and both the shift register units 221 and the emission circuit units 222 can have the same circuit as the shift register units 121 and the emission circuit units 122, respectively. However, unlike the foregoing transparent display 100, the shift register units 221 can be located between the emission circuit units 222 and the light emitting array 130, as shown in FIG. 3 .

[0100] FIG. 1A is a partial top view schematic diagram of a transparent display according to another embodiment of the present application. Referring to FIG. 1D , the transparent display 300 of the present embodiment is similar to the transparent display 100 of the foregoing embodiment, in that the transparent display 300 also includes the substrate 110 (shown in FIG. 1E , FIG. 3 and FIG. 3 ) and the light emitting array 130, and both the transparent display 300 and 100 have substantially the same cross-sectional structure. However, the black matrix layer 340 and the driving circuit group 320 included in the transparent display 300 are different from the black matrix layer 140 and the driving circuit group 120.

[0101] In detail, in the present embodiment, the black matrix layer 340 not only has a plurality of light transmission openings 140h located in the display area 111 (not labeled), but also has a plurality of light transmission openings 340h located in the peripheral circuit area 112 (not labeled). The shape of the light transmission openings 340h is different from the shape of the light transmission openings 140h. For example, FIG. 1FFor example, the light-transmitting opening 140h is shaped as an inverse L-shape, but the light-transmitting opening 340h is shaped as a rectangle. The driving circuit group 320 includes a plurality of shift register units 321 and a plurality of emission circuit units 322. Since the light-transmitting openings 340h and 140h are shaped differently, the areas occupied by the shift register units 321 and the emission circuit units 322 on the substrate 110 are different from the area occupied by the pixel circuit units 132 on the substrate 110, as shown in FIG. 3B. FIG. 1G

[0102] However, although the light-transmitting openings 340h and 140h are shaped differently, in the transparent display 300, the aperture ratio of the black matrix layer 340 in the display area and the peripheral circuit area is greater than 50%, so the portion of the transparent display 300 in the peripheral circuit area also presents a transparent appearance, to improve the aesthetics of the transparent display 300, and in the application of the display for vehicles, the driving safety of the driver can also be improved. In addition, the circuits of the shift register units 321 and 121 can be the same (see FIG. 3 ), and the circuits of the emission circuit units 322 and 122 can also be the same (see FIG. 3 ).

[0103] It is worth mentioning that in the embodiment shown in FIG. 4 , the shift register units 321 and the emission circuit units 322 are arranged in multiple rows (at least two rows) along the first direction D1, and the shift register units 321 are located between the emission circuit units 322 and the light-emitting array 130. However, in other embodiments, the emission circuit units 322 can also be located between the shift register units 321 and the light-emitting array 130. Therefore, FIG. 4 the shift register units 321 in do not necessarily have to be located between the emission circuit units 322 and the light-emitting array 130.

[0104] FIG. 4 is a partial top view schematic diagram of a transparent display according to another embodiment of the present application. Referring to FIG. 4 , the transparent display 400 of the present embodiment is similar to the transparent display 300 of the previous embodiment, and the difference between the two includes at least one wire 431 included in the transparent display 400. Specifically, FIG. 5A the transparent display 400 in may include a plurality of wires 431, wherein the wires 431 are electrically connected to the light-emitting array 130 and are not located in the light-transmitting openings 140h and 340h.

[0105] The wires 431 can extend along the first direction Dl, and the black matrix layer 440 completely covers the wires 431, the shift register units 321 and the emission circuit units 322. The wires 431 can be power supply lines that supply power to the light emitting array 130 to cause the light emitting elements 131 to emit light to form an image. In addition, the shift register units 321 and the emission circuit units 322 can be staggered along the first direction Dl, and thus, unlike the aforementioned embodiments, the shift register units 321 and the emission circuit units 322 are not arranged in rows along the first direction Dl.

[0106] Unlike the aforementioned black matrix layer 340, the black matrix layer 440 included in the transparent display 400 not only has the transparent openings 140h and 340h, but also has transparent openings 440h that can have different shapes and areas from the transparent openings 140h and 340h, as shown in FIG. 5B The transparent openings 440h are all located in the peripheral circuit area 112 of the transparent display 400 and are arranged along the wires 431. In addition, the open area ratio of the black matrix layer 440 in the display area and the peripheral circuit area of the transparent display 400 is greater than 50%, so the portion of the transparent display 400 in the peripheral circuit area also has a transparent appearance.

[0107] FIG. 5A With FIG. 5B being a partial top view of a transparent display according to another embodiment of the present application. Referring to FIG. 1A With FIG. 1D , the transparent display 500 includes a substrate 110 (shown in FIG. 1E , FIG. 5B and FIG. 1F ), a black matrix layer 540, a driving circuit group 520 and a light emitting array 530, wherein the black matrix layer 540, the driving circuit group 520 and the light emitting array 530 are disposed on the substrate 110. The driving circuit group 520 includes a plurality of shift register units 521 and a plurality of emission circuit units 522, and the light emitting array 530 includes a plurality of light emitting elements 131 and a plurality of pixel circuit units (not shown).

[0108] The black matrix layer 540 covers the driving circuit group 520 and the light emitting array 530, and completely covers the shift register units 521 and the emission circuit units 522, wherein FIG. 1G is drawn by omitting the portion of the black matrix layer 540 in the peripheral circuit area 112 to show the structure of the shift register units 521 and the emission circuit units 522. In addition, the black matrix layer 540 has a plurality of light transmission openings 540h, and none of the pixel circuit units, the shift register units 521 and the emission circuit units 522 are located in any of the light transmission openings 540h.

[0109] The transparent display 500 is similar to the transparent display 100 of the aforementioned embodiment. For example, both transparent displays 500 and 100 have substantially the same cross-sectional structure, and the circuits of the displacement temporary storage unit 521, the emission circuit unit 522, and the pixel circuit unit of the light-emitting array 530 can be identical to those of the previous embodiment. FIG. 1H The displacement temporary storage unit 121 circuit in the middle FIG. 1F The transmitting circuit unit 122 circuit and FIG. 1F The pixel circuit unit 132 circuit is described below. The differences between transparent displays 500 and 100 are mainly described below, while the common features of transparent displays 500 and 100 will not be repeated.

[0110] Unlike the transparent display 100, in this embodiment, each displacement temporary storage unit 521 includes a temporary storage circuit body 521m and a first output section 521p, wherein the first output section 521p is electrically connected to the temporary storage circuit body 521m. The circuit of the displacement temporary storage unit 521 can be the same as... FIG. 1G The circuit of the intermediate displacement temporary storage unit 121, wherein the first output part 521p is equivalent to FIG. 1G The output terminal SR2 is shown. The first output section 521p is electrically connected to the light-emitting array 530, and can be electrically connected to the first output section 521 of the pixel circuit unit and other displacement temporary storage units 521 through a contact window (not shown).

[0111] Similarly, each transmitting circuit unit 522 includes a transmitting circuit body 522m and a second output section 522p, wherein the second output section 522p is electrically connected to the transmitting circuit body 522m. The circuit of the transmitting circuit unit 522 may be the same as... FIG. 5A The circuit of the transmitting circuit unit 122, wherein the second output section 522p is equivalent to FIG. 5B The output terminal EM2 is shown. The second output section 522p is electrically connected to the light-emitting array 530, and can be electrically connected to the second output section 522 of the pixel circuit unit and other emission circuit units 522 through a contact window (not shown).

[0112] The black matrix layer 540 may include multiple light-shielding blocks 543, which respectively cover the temporary storage circuit bodies 521m, the first output sections 521p, the transmitting circuit bodies 522m, and the second output sections 522p. Therefore, unlike the previous embodiment, each displacement temporary storage unit 521 may be covered by multiple (e.g., two) light-shielding blocks 543, and each transmitting circuit body 522m may also be covered by multiple (e.g., two) light-shielding blocks 543.

[0113] It is worth mentioning that, from FIG. 5A and FIG. 5BIt can be seen that the storage circuit bodies 521m and the first output portions 521p of two adjacent displacement storage units 521 surround one of the light transmission openings 540h, and the emission circuit bodies 522m and the second output portions 522p of two adjacent emission circuit units 522 surround the other light transmission opening 540h. In addition, the shape of the light transmission opening 540h in the present embodiment is different from the shape of the light transmission opening 140h or 340h in the foregoing embodiments, i.e., the shape of the light transmission opening 540h is not an inverted L shape or a rectangular shape.

[0114] It should be noted that, FIG. 4 With FIG. 4 The black matrix layer 540 shown in FIG. 5 can be replaced by the black matrix layer 140 or 340 in the foregoing embodiments. In other words, the black matrix layer 540 can also have a rectangular or inverted L-shaped light transmission opening 540h. Alternatively, the light transmission openings 540h can have at least two different shapes. In addition, in other embodiments, the transparent display 500 can also include the wire 431 in FIG. 5A , and the black matrix layer 540 can also have the light transmission opening 440h as shown in FIG. 5B . Therefore, ​ With ​ The structure of the transparent display 500 and the shape of the black matrix layer 540 are not limited.

[0115] Although the present application has been disclosed in the above embodiments, it is not intended to limit the present application, and those skilled in the art, without departing from the concept and scope of the present application, can make some changes and modifications, and therefore the protection scope of the present application shall be subject to the definition of the claims.

Claims

1. A transparent display, comprising: A substrate having a display area and a peripheral circuit area; A drive circuit group is disposed on the substrate and located within the peripheral circuit area; A light-emitting array is disposed on the substrate and located within the display area, and electrically connected to the driving circuit group. The light-emitting array includes multiple light-emitting elements and multiple pixel circuit units. The light-emitting elements are disposed on the pixel circuit units, and each pixel circuit unit has multiple sub-pixel regions constituting a main pixel region. The light-emitting elements are respectively disposed within the sub-pixel regions. A black matrix layer is disposed on the substrate and covers the driving circuit group and the light-emitting array, but does not cover the light-emitting elements. The black matrix layer has multiple light-transmitting openings distributed in the display area and the peripheral circuit area, and the aperture ratio of the black matrix layer in both the display area and the peripheral circuit area is greater than 50%. The black matrix layer includes multiple first light-shielding strips, multiple second light-shielding strips, and multiple light-shielding blocks. Each first light-shielding strip extends along a first direction, and each second light-shielding strip extends along a second direction, the first direction being different from the second direction. Each light-shielding block connects adjacent first and second light-shielding strips and is located between these adjacent first and second light-shielding strips, so that the shape of each light-transmitting opening forms an inverted L-shape. Each light-transmitting opening is surrounded by two first light-shielding strips, two second light-shielding strips, and one light-shielding block. The driving circuit group includes: Multiple displacement temporary storage units are electrically connected to the light-emitting array; and Multiple emitting circuit units are electrically connected to the light-emitting array, wherein the black matrix layer completely covers the displacement storage units and the emitting circuit units, and the pixel circuit units, the displacement storage units and the emitting circuit units are not located in the light-transmitting openings, the light-shielding blocks cover the displacement storage units and the emitting circuit units respectively, and the light-shielding blocks, the first light-shielding strips and the second light-shielding strips do not overlap the light-emitting elements.

2. The transparent display as claimed in claim 1, wherein one of the light-transmitting openings is located between the adjacent displacement storage unit and the transmitting circuit unit.

3. The transparent display of claim 1, wherein the displacement storage units are arranged along a first direction, and the transmitting circuit units are arranged along the first direction.

4. The transparent display of claim 1, wherein the emitting circuit units are located between the displacement storage units and the light-emitting array.

5. The transparent display of claim 1, wherein the displacement storage units are located between the emitting circuit units and the light-emitting array.

6. The transparent display of claim 3, wherein the displacement storage unit and the transmitting circuit unit that are adjacent to each other are arranged along a second direction, and the first direction is different from the second direction.

7. The transparent display as claimed in claim 3, further comprising: At least one row of lines is electrically connected to the light-emitting array and is not located in the light-transmitting openings, wherein the at least one row of lines extends along the first direction and the black matrix layer completely covers the at least one row of lines.

8. The transparent display of claim 7, wherein a plurality of the light-transmitting openings are arranged along the at least one row of lines.

9. The transparent display of claim 1, wherein each of the displacement temporary storage units comprises: The main body of a temporary storage circuit; as well as A first output section is electrically connected to the main body of the temporary storage circuit. The main bodies of the temporary storage circuits of two adjacent displacement temporary storage units and the first output sections surround one of the light-transmitting openings. The light-shielding blocks cover the main bodies of the temporary storage circuits and the first output sections respectively. The transparent display further includes multiple transparent layers disposed on the substrate and located in the light-transmitting openings respectively. Each transparent layer does not overlap with the displacement temporary storage units, the emission circuit units and the pixel circuit units.

10. The transparent display as claimed in claim 1 or 9, wherein each of the transmitting circuit units comprises: A main body of the transmitting circuit; as well as A second output section is electrically connected to the main body of the transmitting circuit, wherein the main bodies of the transmitting circuits of two adjacent transmitting circuit units and the second output sections surround one of the light-transmitting openings, wherein the light-shielding blocks respectively cover the main bodies of the transmitting circuits and the second output sections.

11. The transparent display of claim 1, wherein the displacement storage units and the transmitting circuit units are arranged alternately along a first direction.

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