TWI849931B - Display apparatus - Google Patents

Abstract

A display apparatus includes a driving backplane, a first bank layer, light-emitting elements, a second bank layer, light adjusting patterns, a light shielding pattern layer and color filter patterns. The first bank layer is disposed on the driving backplane and has openings. The light-emitting elements are disposed on the driving backplane and located at least a part of the openings of the first bank layer. Openings of the second bank layer are respectively overlapped with the openings of the first bank layer. The light adjusting patterns are respectively disposed in the openings of the second bank layer. The light adjusting patterns include a light blocking pattern and a color conversion patterns. Openings of the light shielding pattern layer are respectively overlapped with the openings of the second bank layer. The color filter patterns are disposed on at least a part of the openings of the light shielding pattern layer.

Description

Display device

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

With the development of display technology, high-resolution and thin display devices are favored by the mainstream market. In recent years, due to the breakthrough in the process technology of LED components, micro-LED display devices (Micro-LED display) or millimeter-level LED display devices made by arranging LED components have been developed. Micro-LED display devices do not require a liquid crystal layer, which can further reduce the thickness of the display device. In addition, compared with organic LED display devices, micro-LED display devices have the advantages of more power saving and longer life.

In the current manufacturing process of micro LED display devices, a large number of LED components need to be transferred to the drive backplane through mass transfer. However, the number of pixels in today's display devices is in the millions, and the LED components are small in size, making it difficult to accurately bond with the pads of the drive backplane, which causes the LED components to be unable to be driven normally. In addition, among a large number of LED components, it is possible that a small number of LED components themselves are abnormal and cannot be lit. The above situations will cause the yield of micro LED display devices to be low and need to be repaired.

Generally speaking, each of the multiple sub-pixel areas of a micro-LED display device will have a corresponding spare sub-pixel area. If the LED element on the sub-pixel area cannot be properly lit, a repair operation can be performed to set a new LED element on the spare sub-pixel area. However, the arrangement of a spare sub-pixel area corresponding to each sub-pixel area will cause the resolution of the micro-LED display device to decrease and the reflectivity to increase. In addition, each spare sub-pixel area must share a large-area dimming pattern with a corresponding sub-pixel area, such as a quantum dot color conversion pattern with high material and manufacturing costs, resulting in high costs for micro-LED display devices.

The present invention provides a display device with high reflectivity and low cost.

The display device of the present invention includes a driving backplane, a first bank layer, a plurality of light-emitting elements, a filling layer, a first blocking layer, a second bank layer, a plurality of dimming patterns, a second blocking layer, a shading pattern layer and a plurality of color filter patterns. The driving backplane has a plurality of sub-pixel driving structures. The first bank layer is disposed on the driving backplane and has a plurality of openings. A plurality of light-emitting elements are disposed on the driving backplane, located at at least a portion of the plurality of openings of the first bank layer, and electrically connected to at least a portion of the plurality of sub-pixel driving structures. The filling layer covers the plurality of light-emitting elements, the first bank layer and the driving backplane. The first blocking layer is disposed on the filling layer. The second bank layer is disposed on the first blocking layer and has a plurality of openings. The plurality of openings of the second bank layer overlap the plurality of openings of the first bank layer respectively. A plurality of dimming patterns are disposed on the plurality of openings of the second bank layer respectively. The plurality of dimming patterns include light-blocking patterns and color conversion patterns. The second blocking layer is disposed on the plurality of dimming patterns and the second bank layer. The shading pattern layer is disposed on the second blocking layer and has a plurality of openings. The plurality of openings of the shading pattern layer overlap the plurality of openings of the second bank layer respectively. A plurality of color filter patterns are disposed on at least a portion of the plurality of openings of the shading pattern layer.

Reference will now be made in detail to exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Whenever possible, the same reference numerals are used in the drawings and description to represent the same or similar parts.

It should be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "connected to" another element, it may be directly on or connected to another element, or an intermediate element may also exist. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intermediate elements. As used herein, "connected" may refer to physical and/or electrical connections. Furthermore, "electrically connected" or "coupled" may mean that there are other elements between two elements.

As used herein, "about," "approximately," or "substantially" includes the stated value and the average value within an acceptable deviation range of a particular value determined by a person 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 a more acceptable deviation range or standard deviation depending on the optical property, etching property, or other property, and can apply to all properties without using a single standard deviation.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by ordinary technicians in the field to which the present invention belongs. It will be further understood that those terms as 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 expressly defined as such in this document.

1A to 1G are top views schematically showing the manufacturing process of the display device according to the first embodiment of the present invention.

Figures 2A to 2G are cross-sectional schematic diagrams of the manufacturing process of the display device of the first embodiment of the present invention. Figures 2A to 2G correspond to the section lines I-I' and II-II' of Figures 1A to 1G.

3A to 3G are cross-sectional schematic diagrams of the manufacturing process of the display device of the first embodiment of the present invention. FIG3A to FIG3G correspond to the section lines III-III' and IV-IV' of FIG1A to FIG1G.

4A to 4G are cross-sectional schematic diagrams of the manufacturing process of the display device of the first embodiment of the present invention. FIG4A to FIG4G correspond to the section lines V-V' and VI-VI' of FIG1A to FIG1G.

5A to 5G are cross-sectional schematic diagrams of the manufacturing process of the display device of the first embodiment of the present invention. FIG5A to FIG5G correspond to the section lines VII-VII' and VIII-VIII' of FIG1A to FIG1G.

1A, 2A, 3A, 4A and 5A, first, a driving backplane 110 is provided, which has a plurality of sub-pixel driving structures 112. In one embodiment, each sub-pixel driving structure 112 may include a sub-pixel driving circuit 112a and a pad set 112b electrically connected to each other. For example, in one embodiment, the sub-pixel driving circuit 112a includes a first transistor (not shown), a second transistor (not shown) and a capacitor (not shown), wherein a first end of the first transistor is electrically connected to a corresponding data line (not shown), a control end of the first transistor is electrically connected to a corresponding scanning line (not shown), a second end of the first transistor is electrically connected to a control end of the second transistor, a first end of the second transistor is electrically connected to a corresponding power line (not shown), the capacitor is electrically connected to the second end of the first transistor and the first end of the second transistor, the second end of the second transistor is electrically connected to a pad of the pad group 112b, and another pad of the pad group 112b is electrically connected to a corresponding common line (not shown). However, the present invention is not limited thereto, and in other embodiments, the sub-pixel driving circuit 112a may also be a circuit of other forms.

Next, a first bank layer 120 is formed on the driving back plate 110 , wherein the first bank layer 120 has a plurality of openings 122 . In one embodiment, the opening 122 of the first bank layer 120 defines sub-pixel areas R11, G11, B11, R12, G12, B12, R13, G13, B13, R21, G21, B21, R22, G22, B22, R23, G23, B23, R31, G31, B31, R32, G32, B32, R33, G33, B33, R41, G41, B41, R42, G42, B42, R43, G43, B43 of the driving backplane 110 and a plurality of spare sub-pixel areas r11, r12, r13, r21, r22, r23, r31, r32, r33, r41, r42, r43.

In one embodiment, a plurality of sub-pixel regions R11, G11, B11, R12, G12, B12, R13, G13, B13, R21, G21, B21, R22, G22, B22, R23, G23, B23, R31, G31, B31, R32, G32, B32, R33, G33, B33, R41, G41, B41, R42, G42, B42, R43, G43, B43 and a plurality of spare sub-pixel regions r11, r12, r13, r21, r22, r23, r31, r32, r33, r41, r42, r43 may be divided into a plurality of pixel regions PX11, PX12, PX13, PX21, PX22, PX23, PX31, PX32, PX33, PX41, PX42, PX43, each pixel area PX11/PX12/PX13/PX21/PX22/PX23/PX31/PX32/PX33/PX41/PX42/PX43 can have multiple sub-pixel areas R11, G11, B11/R12, G12, B12/R13, G13, B13/R21, G21, B21/R22, G22, B22/R23, G23, B23/R31, G31, B31/R32, G32, B32/R33, G33, B33/ R41, G41, B41/R42, G42, B42/R43, G43, B43 and a spare sub-pixel area r11/r12/r13/r21/r22/r23/r31/r32/r33/r41/r42/r43, a plurality of pad groups 112b are respectively disposed in a plurality of sub-pixel areas R11, G11, B11, R12, G12, B12, R13, G13, B 13, R21, G21, B21, R22, G22, B22, R23, G23, B23, R31, G31, B31, R32, G32, B32, R33, G33, B33, R41, G41, B41, R42, G42, B42, R43, G43, B43 and multiple spare sub-pixel areas r11, r12, r13, r21, r22, r23, r31, r32, r33, r41, r42, r43.

In the present embodiment, each pixel area PX11/PX12/PX13/PX21/PX22/PX23/PX31/PX32/PX33/PX41/PX42/PX43 has a plurality of sub-pixel areas R11, G11, B11/R12, G12, B12/R13, G13, B13/R21, G21, B21/R22, G22, B22/R23, G23, B23/ R31, G31, B31/R32, G32, B32/R33, G33, B33/R41, G41, B41/R42, G42, B42/R43, G43, B43 may include a first sub-pixel area R11/R12/R13/respectively predetermined to display a first color, a second color, and a third color. R21/R22/R23/R31/R32/R33/R41/R42/R43, a second sub-pixel area G11/G12/G13/G21/G22/G23/G31/G32/G33/G41/G42/G43 and a third sub-pixel area B11/B12/B13/B21/B22/B23/B31/B32/B33/B41/B42/B43. In the present embodiment, the first color, the second color and the third color are, for example, red, green and blue, respectively, but the present invention is not limited thereto.

1B , 2B , 3B , 4B and 5B , then, the plurality of light emitting elements 130 are transposed onto the driving backplane 110 , and the plurality of light emitting elements 130 are electrically connected to the plurality of pad sets 112 b respectively. In one embodiment, the light emitting elements 130 disposed in the first sub-pixel region R11, R12, R13, R21, R22, R23, R31, R32, R33, R41, R42, and R43 are, for example, used to emit blue light, the light emitting elements 130 disposed in the second sub-pixel region G11, G12, G13, G21, G22, G23, G31, G32, G33, G41, G42, and G43 are, for example, used to emit green light, and the light emitting elements 130 disposed in the third sub-pixel region B11, B12, B13, B21, B22, B23, B31, B32, B33, B41, B42, and B43 are, for example, used to emit blue light, but the present invention is not limited thereto. In one embodiment, the light emitting element 130 is, for example, a micro light emitting diode (μLED), but the present invention is not limited thereto.

Please refer to Figures 1C, 2C, 3C, 4C and 5C. Then, check whether multiple light-emitting elements 130 can be illuminated by driving the backplane 110 to find the light-emitting elements 130 that cannot be illuminated (the light-emitting elements 130 circled by the dashed frames in Figure 1C), and record the positions of the light-emitting elements 130 that cannot be illuminated.

For example, in one embodiment, the first direction x and the second direction y are intersected, and a plurality of pixel areas PX11, PX21, PX31, and P41 are sequentially arranged along the first direction x to form a first row, a plurality of pixel areas PX12, PX22, PX32, and P42 are sequentially arranged along the first direction x to form a second row, a plurality of pixel areas PX13, PX23, PX33, and P43 are sequentially arranged along the first direction x to form a third row, a plurality of pixel areas PX11, PX12, and PX13 are sequentially arranged along the second direction y to form a first row, a plurality of pixel areas PX21, PX22, and PX23 are sequentially arranged along the second direction y to form a second row, a plurality of pixel areas PX31, PX32, and PX33 are sequentially arranged along the second direction y to form a third row, and a plurality of pixel areas PX13, PX23, PX33, and PX33 are sequentially arranged along the second direction y to form a third row. Arranged in sequence to form the third row, multiple pixel areas PX41, PX42, and PX43 are arranged in sequence along the second direction y to form the fourth row, wherein the light-emitting element 130 of the first sub-pixel area R13 of the pixel area PX13 located in the first row and the third column, the light-emitting element 130 of the second sub-pixel area G11 of the pixel area PX11 located in the first row and the first column, the light-emitting element 130 of the third sub-pixel area B32 of the pixel area PX32 located in the third row and the second column, the light-emitting element 130 of the first sub-pixel area R43 of the pixel area PX43 located in the fourth row and the third column, and the light-emitting element 130 of the third sub-pixel area B41 of the pixel area PX41 located in the fourth row and the first column cannot be lit, but the present invention is not limited to this.

Please refer to FIG. 1D, FIG. 2D, FIG. 3D, FIG. 4D and FIG. 5D. Next, a repair operation is performed to transfer the new light-emitting element 130' to the spare sub-pixel area r13, r11, r32, r43, r41 of the pixel area PX13, PX11, PX32, PX43, PX41 where the light-emitting element 130 that cannot be lit is located, so that the new light-emitting element 130' is electrically connected to the pad group 112b located on the spare sub-pixel area r13, r11, r32, r43, r41, and the position of the repair light-emitting element 130' is recorded. At this point, the lower substrate 1 is completed.

The new light emitting element 130' can emit the same color of light beam as the light emitting element 130 that cannot be lit and is to be replaced. For example, in one embodiment, the multiple new light emitting elements 130' respectively disposed in the multiple spare sub-pixel regions r13, r11, r32, r43, and r41 are respectively used to replace the multiple light emitting elements 130 disposed in the first sub-pixel region R13, the second sub-pixel region G11, the third sub-pixel region B32, the first sub-pixel region R43, and the third sub-pixel region B41 and cannot be lit, and the multiple new light emitting elements 130' respectively disposed in the multiple spare sub-pixel regions r13, r11, r32, r43, and r41 are respectively used to emit blue light, green light, blue light, blue light, and blue light, but the present invention is not limited thereto.

1E, 2E, 3E, 4E and 5E, then, a color filter substrate CF is provided. The color filter substrate CF includes a transparent base 210, a light shielding pattern layer 220 and a plurality of color filter patterns 230R, 230G, 230B. The light shielding pattern layer 220 has a plurality of sub-pixel regions R11', G11', B11', R12', G12', B12', R13', G13', B13', R21', G21', B21', R22', G22', B22', R23', G23', B23', R31', G31', B31', R32', G32 ’, B32’, R33’, G33’, B33’, R41’, G41’, B41’, R42’, G42’, B42’, R43’, G43’, B43’ and multiple openings 222 of multiple spare sub-pixel areas r11’, r12’, r13’, r21’, r22’, r23’, r31’, r32’, r33’, r41’, r42’, r43’. A plurality of sub-pixel regions R11', G11', B11', R12', G12', B12', R13', G13', B13', R21', G21', B21', R22', G22', B22', R23', G23', B23', R31', G31', B31', R32', G32', B32', R33', G33', B33', R41', G41', B41', R42', G42', B42', R43', G43', B43' and a plurality of spare sub-pixel regions r11', r12', r13', r21', r22', r23', r31', r32' , r33', r41', r42', r43' are predetermined to be respectively connected to the plurality of sub-pixel regions R11, G11, B11, R12, G12, B12, R13, G13, B13, R21, G21, B21, R22, G22, B22, R23, G23, B23, R31, G31, B 31, R32, G32, B32, R33, G33, B33, R41, G41, B41, R42, G42, B42, R43, G43, B43 and multiple spare sub-pixel areas r11, r12, r13, r21, r22, r23, r31, r32, r33, r41, r42, r43 overlap. A plurality of color filter patterns 230R, 230G, 230B are disposed in a plurality of openings 222 defining a plurality of sub-pixel regions R11’, G11’, B11’, R12’, G12’, B12’, R13’, G13’, B13’, R21’, G21’, B21’, R22’, G22’, B22’, R23’, G23’, B23’, R31’, G31’, B31’, R32’, G32’, B32’, R33’, G33’, B33’, R41’, G41’, B41’, R42’, G42’, B42’, R43’, G43’, B43’.

In one embodiment, the plurality of sub-pixel regions R11′, G11′, B11′, R12′, G12′, B12′, R13′, G13′, B13′, R21′, G21′, B21′, R22′, G22′, B22′, R23′, G23′, B23′, R31′, G31′, B31′, R32′, G32′, B32′, R33′, G33′, B33′, R41′, G41′, B41′, R42′, G42′, B42′, R43′, G43′, B43′ of the color filter substrate CF include a plurality of first sub-pixel regions R11′, R12′, R13′, R21′, R22′, R23′, R31', R32', R33', R41', R42', R43', a plurality of second sub-pixel areas G11', G12', G13', G21', G22', G23', G31', G32', G33', G41', G42', G43' and a plurality of third sub-pixel areas B11', B12', B13', B21', B22', B23', B31', B32', B33', B41', B42', B43', a plurality of color filter patterns 230R, 230G, 230B including a plurality of first color filter patterns 230R, a plurality of second color filter patterns 230G and a plurality of third color filter patterns 230B, a plurality of first color filter patterns The plurality of second color filter patterns 230G and the plurality of third color filter patterns 230B are respectively disposed in the plurality of first sub-pixel areas R11’, R12’, R13’, R21’, R22’, R23’, R31’, R32’, R33’, R41’, R42’, R43’, the plurality of second sub-pixel areas G11’, G12’, G13’, G21’, G22’, G23’, G31’, G32’, G33’, G41’, G42’, G43’ and the plurality of third sub-pixel areas B11’, B12’, B13’, B21’, B22’, B23’, B31’, B32’, B33’, B41’, B42’, B43’. In one embodiment, the first color filter pattern 230R, the second color filter pattern 230G and the third color filter pattern 230B are, for example, red filter pattern, green filter pattern 230G and blue filter pattern, respectively, but the present invention is not limited thereto. In one embodiment, the plurality of openings 222 defining the plurality of spare sub-pixel regions r11′, r12′, r13′, r21′, r22′, r23′, r31′, r32′, r33′, r41′, r42′, r43′ of the light shielding pattern layer 220 may optionally leave a vacancy E, but the present invention is not limited thereto.

1F, 2F, 3F, 4F and 5F, then, a second blocking layer 240 is formed on the color filter substrate CF. In this embodiment, the second blocking layer 240 can be a light-transmitting inorganic material (e.g., silicon oxide, silicon nitride, silicon oxynitride, or a stacked layer of at least two of the above materials), a light-transmitting organic material or a combination thereof, but the present invention is not limited thereto.

1F, 2F, 3F, 4F and 5F, then, a second bank layer 250 is formed on the second barrier layer 240. The second bank layer 250 has a plurality of openings 252. The plurality of openings 252 of the second bank layer 250 overlap the plurality of openings 222 of the light shielding pattern layer 220. In this embodiment, the material of the second bank layer 250 can absorb light, but the present invention is not limited thereto.

Referring to FIG. 1F, FIG. 2F, FIG. 3F, FIG. 4F and FIG. 5F, a plurality of dimming patterns 260 are then formed in the plurality of openings 252 of the second bank layer 250. The plurality of dimming patterns 260 include a light-blocking pattern BM and a color conversion pattern QDR. In this embodiment, the dimming pattern 260 may also include a light-transmitting scattering pattern SOC. For example, in one embodiment, the dimming pattern 260 may be formed using an ink-jet printing (IJP) process, but the present invention is not limited thereto.

It is worth noting that the types of the plurality of dimming patterns 260 and the formation positions of the various dimming patterns 260 will be changed accordingly according to the positions of the light-emitting elements 130 that cannot be illuminated and the positions of the light-emitting elements 130' used for repair, in addition to the normal original settings.

1D, 2D, 1F and 2F, for example, in one embodiment, the first sub-pixel region R33, the second sub-pixel region G33, the third sub-pixel region B33 and the spare sub-pixel region r33 of the pixel region PX33 of the driving backplane 110 are normal and have not been repaired, and the first sub-pixel region R33', the second sub-pixel region G33', the third sub-pixel region B33' and the spare sub-pixel region r33' of the pixel region PX33' of the color filter substrate CF are used to communicate with the driving backplane, respectively. The first sub-pixel area R33, the second sub-pixel area G33, the third sub-pixel area B33 and the spare sub-pixel area r33 of the pixel area PX33 of 110 overlap, and the first sub-pixel area R33', the second sub-pixel area G33', the third sub-pixel area B33' and the spare sub-pixel area r33' of the pixel area PX33' of the color filter substrate CF are respectively located on the plurality of dimming patterns 260, for example, the originally set color conversion pattern QDR, the translucent scattering pattern SOC, the translucent scattering pattern SOC and the light blocking pattern BM.

1D, 2D, 1F and 2F, the light-emitting element 130 disposed in the first sub-pixel region R33 of the driving backplane 110, for example, emits blue light, and the color conversion pattern QDR disposed on the first sub-pixel region R33' of the color filter substrate CF, for example, includes a quantum dot material for converting blue light into red light; the light-emitting element 130 disposed in the second sub-pixel region G33 of the driving backplane 110, for example, emits green light, and the light-transmitting scattering pattern SOC disposed in the second sub-pixel region G33' of the color filter substrate CF allows the green light to pass through and scatter it; The light-emitting element 130 of the third sub-pixel area B33 of 110, for example, emits blue light, and the light-transmitting scattering pattern SOC disposed in the third sub-pixel area B33' of the color filter substrate CF can allow the blue light to pass through and scatter it; the light-emitting element 130, 130' is not disposed on the pad group 112b of the pixel driving structure 112 located in the spare sub-pixel area r33 of the driving backplane 110, and the light-blocking pattern BM disposed in the spare sub-pixel area r33' of the color filter substrate CF can shield the pixel driving structure 112 in the spare sub-pixel area r33 of the driving backplane 110 to reduce the reflectivity.

1D, 3D, 1F and 3F, for example, in one embodiment, the light emitting element 130 on the first sub-pixel area R13 of the pixel area PX13 of the driving backplane 110 cannot be lit, the pixel area PX13 of the driving backplane 110 is repaired and the spare sub-pixel area r33 of the pixel area PX13 is provided with a repair light emitting element 130', and the first sub-pixel area R13', the second sub-pixel area G13', the third sub-pixel area B13' and the spare sub-pixel area r13' of the pixel area PX13' of the color filter substrate CF are used. The first sub-pixel area R13, the second sub-pixel area G13, the third sub-pixel area B13 and the spare sub-pixel area r13 of the pixel area PX13 of the driving backplane 110 are overlapped respectively, and the first sub-pixel area R13', the second sub-pixel area G13', the third sub-pixel area B13' and the spare sub-pixel area r13' of the pixel area PX13' of the color filter substrate CF are respectively located on multiple dimming patterns 260, for example, the light blocking pattern BM, the light-transmitting scattering pattern SOC, the light-transmitting scattering pattern SOC and the color conversion pattern QDR that have been correspondingly changed.

Referring to FIG. 1D, FIG. 3D, FIG. 1F and FIG. 3F, the dimming pattern 260 disposed in the first sub-pixel region R13' of the color filter substrate CF is changed from the originally set color conversion pattern QDR to the light-blocking pattern BM. The light-blocking pattern BM can shield the pixel driving structure 112 of the first sub-pixel region R13 of the driving backplane 110 and the light-emitting element 130 that cannot be lit, so as to reduce the reflectivity; the light-emitting element 130 disposed in the second sub-pixel region G13 of the driving backplane 110, for example, emits green light, and the light-transmitting scattering pattern SOC disposed in the second sub-pixel region G13' of the color filter substrate CF can allow the green light to pass through and scatter it; The light-emitting element 130 of the third sub-pixel region B13 of the backplane 110, for example, emits blue light, and the light-transmitting scattering pattern SOC disposed in the third sub-pixel region B13' of the color filter substrate CF allows the blue light to pass through and scatter it; the dimming pattern 260 disposed in the spare sub-pixel region r13 of the color filter substrate CF is changed from the originally set light-blocking pattern BM to the color conversion pattern QDR, and the light-emitting element 130 disposed in the spare sub-pixel region r13 of the driving backplane 110, for example, emits blue light, and the color conversion pattern QDR disposed in the spare sub-pixel region r13' of the color filter substrate CF, for example, includes a quantum dot material for converting blue light into red light. In short, by appropriately changing the type of dimming pattern 260, the spare sub-pixel region r13 can replace the function of the failed first sub-pixel region R13 to display red, and the pixel driving structure 112 of the failed first sub-pixel region R13 can be shielded to reduce the reflectivity.

1D, 4D, 1F and 4F, for example, in one embodiment, the light emitting element 130 on the second sub-pixel area G11 of the pixel area PX11 of the driving backplane 110 cannot be lit, the pixel area PX11 of the driving backplane 110 is repaired and the spare sub-pixel area r11 of the pixel area PX11 is provided with a repair light emitting element 130', and the first sub-pixel area R11', the second sub-pixel area G11', the third sub-pixel area B11' and the spare sub-pixel area r11' of the pixel area PX11' of the color filter substrate CF are used. The plurality of dimming patterns 260 are respectively overlapped with the first sub-pixel region R11, the second sub-pixel region G11, the third sub-pixel region B11 and the spare sub-pixel region r11 of the pixel region PX11 of the driving backplane 110, and are respectively located on the first sub-pixel region R11′, the second sub-pixel region G11′, the third sub-pixel region B11′ and the spare sub-pixel region r11′ of the pixel region PX11′ of the color filter substrate CF, such as the color conversion pattern QDR, the light blocking pattern BM, the light-transmitting scattering pattern SOC and the light-transmitting scattering pattern SOC that have been changed accordingly.

1D, 4D, 1F and 4F, the light emitting element 130 disposed in the first sub-pixel region R11 of the driving backplane 110, for example, emits blue light, the color conversion pattern QDR disposed in the first sub-pixel region R11' of the color filter substrate CF, for example, includes a quantum dot material for converting blue light into red light; the dimming pattern 260 disposed in the second sub-pixel region G11' of the color filter substrate CF is changed from the originally set light-transmitting scattering pattern SOC to the light-blocking pattern BM, and the light-blocking pattern BM can shield the second sub-pixel region G11' of the driving backplane 110. The pixel driving structure 112 and the light-emitting element 130 that cannot be lit are used to reduce the reflectivity; the light-emitting element 130 arranged in the third sub-pixel area G11 of the driving backplane 110, for example, emits blue light, and the light-transmitting scattering pattern SOC arranged in the third sub-pixel area G13' of the color filter substrate CF allows the blue light to pass through and scatter it; the light-emitting element 130' arranged in the spare sub-pixel area r11 of the driving backplane 110, for example, emits green light, and the light-transmitting scattering pattern SOC arranged in the spare sub-pixel area r11' of the color filter substrate CF allows the green light to pass through and scatter it. In short, by appropriately changing the type of dimming pattern 260, the spare sub-pixel region r11 can replace the function of the failed second sub-pixel region G11 to display green, and the pixel driving structure 112 of the failed second sub-pixel region G11 can be shielded to reduce the reflectivity.

1D, 5D, 1F and 5F, for example, in one embodiment, the light emitting element 130 on the third sub-pixel area B41 of the pixel area PX41 of the driving backplane 110 cannot be lit, the pixel area PX41 of the driving backplane 110 is repaired and the spare sub-pixel area r41 of the pixel area PX41 is provided with a repair light emitting element 130', and the first sub-pixel area R41', the second sub-pixel area G41', the third sub-pixel area B41' and the spare sub-pixel area r41' of the pixel area PX41' of the color filter substrate CF are used. The first sub-pixel area R41, the second sub-pixel area G41, the third sub-pixel area B41 and the spare sub-pixel area r41 of the pixel area PX41 of the driving backplane 110 are overlapped respectively, and the first sub-pixel area R41', the second sub-pixel area G41', the third sub-pixel area B41' and the spare sub-pixel area r41' of the pixel area PX41' of the color filter substrate CF are respectively located on multiple dimming patterns 260, for example, the color conversion pattern QDR, the light-transmitting scattering pattern SOC, the light-blocking pattern BM and the light-transmitting scattering pattern SOC that have been changed accordingly.

1D, 5D, 1F and 5F, the light-emitting element 130 disposed in the first sub-pixel region R41 of the driving backplane 110, for example, emits blue light, and the color conversion pattern QDR disposed in the first sub-pixel region R41' of the color filter substrate CF, for example, includes a quantum dot material for converting blue light into red light; the light-emitting element 130 disposed in the second sub-pixel region G41 of the driving backplane 110, for example, emits green light, and the light-transmitting scattering pattern SOC disposed in the second sub-pixel region G41' of the color filter substrate CF allows the green light to pass through and scatter it; the dimming pattern 260 disposed in the third sub-pixel region G43' of the color filter substrate CF is composed of The originally set light-transmitting scattering pattern SOC is changed to the light-blocking pattern BM. The light-blocking pattern BM can shield the pixel driving structure 112 of the third sub-pixel area G43' of the driving backplane 110 and the light-emitting element 130 that cannot be lit, so as to reduce the reflectivity. The dimming pattern 260 arranged in the spare sub-pixel area r43' of the color filter substrate CF is changed from the originally set light-blocking pattern BM to the light-transmitting scattering pattern SOC. The light-emitting element 130 arranged in the spare sub-pixel area r41 of the driving backplane 110, for example, emits blue light. The light-transmitting scattering pattern SOC arranged in the spare sub-pixel area r41' of the color filter substrate CF can allow the blue light to pass through and scatter it. In short, by appropriately changing the type of dimming pattern 260, the spare sub-pixel region r41 can replace the function of the failed third sub-pixel region G43 to display blue, and the pixel driving structure 112 of the failed third sub-pixel region G43 can be shielded to reduce the reflectivity.

Please refer to FIG. 1F, FIG. 2F, FIG. 3F, FIG. 4F and FIG. 5F. Next, a first barrier layer 270 is formed on the second bank layer 250 and the plurality of dimming patterns 260. Here, the upper substrate 2 is completed. In this embodiment, the first barrier layer 270 can be a light-transmitting inorganic material (for example, silicon oxide, silicon nitride, silicon oxynitride, or a stacked layer of at least two of the above materials), a light-transmitting organic material or a combination thereof, but the present invention is not limited thereto.

Referring to FIG. 1G, FIG. 2G, FIG. 3G, FIG. 4G and FIG. 5G, the upper substrate 2 and the lower substrate 1 are assembled so that the upper substrate 2 and the lower substrate 1 are fixedly connected, and the plurality of sub-pixel regions R11′, G11′, B11′, R12′, G12′, B12′, R13′, G13′, B13′, R21′, G21′, B21′, R22′, G2 2’, B22’, R23’, G23’, B23’, R31’, G31’, B31’, R32’, G32’, B32’, R33’, G33’, B33’, R41’, G41’, B41’, R42’, G42’, B42’, R43’, G43’, B43’ and a plurality of spare sub-pixel areas r11’, r12’, r 13', r21', r22', r23', r31', r32', r33', r41', r42', r43' are respectively connected to the plurality of sub-pixel regions R11, G11, B11, R12, G12, B12, R13, G13, B13, R21, G21, B21, R22, G22, B22, R23, G23, B2 3, R31, G31, B31, R32, G32, B32, R33, G33, B33, R41, G41, B41, R42, G42, B42, R43, G43, B43 and a plurality of spare sub-pixel regions r11, r12, r13, r21, r22, r23, r31, r32, r33, r41, r42, r43 overlap. Here, the display device DP of this embodiment is completed. In one embodiment, the upper substrate 2 and the lower substrate 1 can be fixedly connected to each other by using a filling layer 300 disposed therebetween, but the present invention is not limited thereto.

In addition, it should be noted that the manufacturing process of the display device DP is based on a double-board manufacturing process (i.e., the light-emitting elements 130, 130' and the dimming pattern 260 are formed on different substrates and then assembled). However, the present invention is not limited thereto. In other embodiments, the display device DP may also be manufactured using a single-board manufacturing process, i.e., the light-emitting elements 130, 130' and the dimming pattern 260 are sequentially formed on the same substrate.

1G, 2G, 3G, 4G and 5G, the display device DP includes a driving backplane 110, a first bank layer 120, a plurality of light-emitting elements 130, 130', a filling layer 300, a first blocking layer 270, a second bank layer 250, a plurality of dimming patterns 260, a second blocking layer 240, a shading pattern layer 220 and a plurality of color filter patterns 230R, 230G, 230B.

The driving backplane 110 has a plurality of sub-pixel driving structures 112. The first bank layer 120 is disposed on the driving backplane 110 and has a plurality of openings 122. A plurality of light-emitting elements 130, 130' are disposed on the driving backplane 110, located at at least a portion of the plurality of openings 122 of the first bank layer 120, and electrically connected to at least a portion of the plurality of sub-pixel driving structures 112. The filling layer 300 covers the plurality of light-emitting elements 130, 130', the first bank layer 120, and the driving backplane 110. The first blocking layer 270 is disposed on the filling layer 300. The second bank layer 250 is disposed on the first blocking layer 270 and has a plurality of openings 252. The plurality of openings 252 of the second bank layer 250 overlap the plurality of openings 122 of the first bank layer 120. The plurality of dimming patterns 260 are respectively disposed on the plurality of openings 252 of the second bank layer 250. The plurality of dimming patterns 260 include a light blocking pattern BM and a color conversion pattern QDR. The second blocking layer 240 is disposed on the plurality of dimming patterns 260 and the second bank layer 250. The light shielding pattern layer 220 is disposed on the second blocking layer 240 and has a plurality of openings 222. The plurality of openings 222 of the light shielding pattern layer 220 overlap the plurality of openings 252 of the second bank layer 250. The plurality of color filter patterns 230R, 230G, and 230B are disposed at least in a portion of the plurality of openings 222 of the light shielding pattern layer 220 .

Referring to FIG. 1G , in one embodiment, the light blocking pattern BM is located between the first blocking layer 270 and the second blocking layer 240. Opposite sides of the light blocking pattern BM directly contact the first blocking layer 270 and the second blocking layer 240, respectively. Referring to FIG. 1G , FIG. 2G , FIG. 3G , FIG. 4G and FIG. 5G , in one embodiment, the light blocking pattern BM overlaps an opening 222 of the light shielding pattern layer 220. Referring to FIG. 1G and FIG. 2G , in one embodiment, a portion 242 of the second blocking layer 240 fills the opening 222 of the light shielding pattern layer 220, and the light blocking pattern BM overlaps the portion 242 of the second blocking layer 240. 1G , 3G , 4G and 5G , in one embodiment, the light blocking pattern BM is also overlapped with the color filter pattern 230R/230G/230B in the opening 222 .

1G and 2G , in one embodiment, the plurality of openings 122 of the first bank layer 120 include a spare opening 122r, the spare opening 122r of the first bank layer 120 is staggered with the plurality of light-emitting elements 130, and the light-blocking pattern BM overlaps the spare opening 122r of the first bank layer 120. 1G and 2G , in one embodiment, the plurality of openings 222 of the light-shielding pattern layer 220 include a spare opening 222r, the spare opening 222r of the light-shielding pattern layer 220 is staggered with the plurality of color filter patterns 230R, 230G, 230B, and the light-blocking pattern BM overlaps the spare opening 222r of the light-shielding pattern layer 220.

1G and 2G , in one embodiment, the plurality of sub-pixel driving structures 112 include a first sub-pixel driving structure 112R, a second sub-pixel driving structure 112G, a third sub-pixel driving structure 112B, and a spare sub-pixel driving structure 112r. The plurality of light-emitting elements 130 are electrically connected to and overlapped on the first sub-pixel driving structure 112R, the second sub-pixel driving structure 112G, and the third sub-pixel driving structure 112B, respectively. The plurality of light-emitting elements 130 are staggered from the spare sub-pixel driving structure 112r, and the light-blocking pattern BM shields the spare sub-pixel driving structure 112r.

1G, 3G, 4G and 5G, in one embodiment, the light-blocking pattern BM shields the light-emitting element 130 that cannot be illuminated by the driving back plate 110. The light-blocking pattern BM overlaps the color filter pattern 230R/230G/230B.

Please refer to FIG. 1G and FIG. 2G , it is worth mentioning that the first sub-pixel region R13, the second sub-pixel region G13 and the third sub-pixel region B13 of a pixel region PX1 share the same spare sub-pixel region r13, rather than each corresponding to a spare sub-pixel region, so the resolution of the display device DP can be improved. In addition, since the first sub-pixel region R13, the second sub-pixel region G13 and the third sub-pixel region B13 of a pixel region PX1 share the same spare sub-pixel region r13, the material usage of the dimming pattern 260 can be reduced, which helps to reduce the manufacturing cost of the display device DP. Furthermore, since the dimming pattern 260 includes the light blocking pattern BM disposed in the opening 252 of the second bank layer 250, the light blocking pattern BM can shield the unnecessary but reflective sub-pixel driving structure 112, so the reflectivity of the display device DP can be reduced.

It should be noted that the following embodiments use the same component numbers and some contents of the previous embodiments, wherein the same number is used to represent the same or similar components, and the description of the same technical contents is omitted. The description of the omitted parts can be referred to the previous embodiments, and the following embodiments will not be repeated.

Fig. 6 is a top view schematically showing a lower substrate of a display device according to a second embodiment of the present invention. Fig. 7 is a top view schematically showing an upper substrate of a display device according to a second embodiment of the present invention. The lower substrate 1A of Fig. 6 and the upper substrate 2A of Fig. 7 can be assembled into another display device (not shown).

The lower substrate 1A of FIG. 6 , the upper substrate 2A of FIG. 7 and the display device formed by the lower substrate 1A and the upper substrate 2A are similar to the display device DP formed by the lower substrate 1 , the upper substrate 2 and the lower substrate 1 and the upper substrate 2 of the aforementioned first embodiment, and the main differences between the two are as follows.

1D and 1F, in the first embodiment, the first sub-pixel area, the second sub-pixel area, the third sub-pixel area and the spare sub-pixel area R11, G11, B11, r11/ R12, G12, B12, r12/ R13, G13, B13, r13/ R21, G21, B21, r21/ R22, G22, B22, r22/ R23, G23, B23, r23/ R31, G31, B31, r31/ R32, G32, B32, r32/ R33, G33, B33, and R33 are arranged Matrix.

6 and 7, in the second embodiment, the first sub-pixel region, the second sub-pixel region, the third sub-pixel region and the spare sub-pixel regions R11, G11, B11, r11/R12, G12, B12, r12/R13, G13, B13, R13/R14, G14, B14, R14/R15, G15, B15, R15/R16, G16, B16, R16/R21, G21, B21, R21/R22, G22, B22, R22/R23, G23, B23, R23/R24, G24, B24, R24/R25, G25, B25, R25/R26, G26, B26, R26 are arranged Upper substrate 2A The plurality of sub-pixel regions R11', G11', B11', R12', G12', B12', R13', G13', B13', R14', G14', B14', R15', G15', B15', R16', G16', B16', R21', G21', B21', R22', G22', B22', R23', G23', B23', R24', G24', B24', R25', G25', B25', R26', G26', B26' and the plurality of spare sub-pixel regions r11', r12', r13', r14', r15', r16', r21', r22', r2 R3', r24', r25', and r26' are used to overlap with a plurality of sub-pixel regions R11, G11, B11, R12, G12, B12, R13, G13, B13, R14, G14, B14, R15, G15, B15, R16, G16, B16, R21, G21, B21, R22, G22, B22, R23, G23, B23, R24, G24, B24, R25, G25, B25, R26, G26, and B26 and a plurality of spare sub-pixel regions r11, r12, r13, r14, r15, r16, r21, r22, r23, r24, r25, and r26 of the lower substrate 1A, respectively.

Fig. 8 is a top view schematically showing a lower substrate of a display device according to a third embodiment of the present invention. Fig. 9 is a top view schematically showing an upper substrate of a display device according to a third embodiment of the present invention. The lower substrate 1B of Fig. 8 and the upper substrate 2B of Fig. 9 can be assembled into another display device (not shown).

The lower substrate 1B of FIG. 8 , the upper substrate 2B of FIG. 9 and the display device formed by the lower substrate 1B and the upper substrate 2B are similar to the display device DP formed by the lower substrate 1 , the upper substrate 2 and the lower substrate 1 and the upper substrate 2 of the aforementioned first embodiment, and the main differences between the two are as follows.

1D and 1F, in the first embodiment, the first sub-pixel area, the second sub-pixel area, the third sub-pixel area and the spare sub-pixel area R11, G11, B11, r11/ R12, G12, B12, r12/ R13, G13, B13, r13/ R21, G21, B21, r21/ R22, G22, B22, r22/ R23, G23, B23, r23/ R31, G31, B31, r31/ R32, G32, B32, r32/ R33, G33, B33, and R33 are arranged Matrix.

8 and 9, in the third embodiment, the first sub-pixel area, the second sub-pixel area, the third sub-pixel area and the spare sub-pixel areas R11, G11, B11, r11/R12, G12, B12, r12/R21, G21, B21, r21/R22, G22, B22, r22/R31, G31, B31, r31/R32, G32, B32, r32/R41, G41, B41, r41/R42, G42, B42, r42/R51, G51, B51, r51/R52, G52, B52, r52/R61, G61, B61, r61/R62, G62, B62, r62/R71, G71, B71, r71/R72, G72, B72, r72/R81, G81, B81, r81/R82, G82, B82, r82 are arranged in The plurality of sub-pixel regions R11', G11', B11', R12', G12', B12', R21', G21', B21', R22', G22', B22', R31', G31', B31', R32', G32', B32', R41', G41', B41', R42', G42', B42', R51', G51', B51', R52', G52', B5 2', R61', G61', B61', R62', G62', B62', R71', G71', B71', R72', G72', B72', R81', G81', B81', R82', G82', B82' and multiple spare sub-pixel areas r11', r12', r21', r22', r31', r32', r41', r42', r51', r52', r61' , r62', r71', r72', r81', r82' are used to respectively connect to the plurality of sub-pixel regions R11, G11, B11, R12, G12, B12, R21, G21, B21, R22, G22, B22, R31, G31, B31, R32, G32, B32, R41, G41, B41, R42, G42, B42, R51, G51, B51, R52 , G52, B52, R61, G61, B61, R62, G62, B62, R71, G71, B71, R72, G72, B72, R81, G81, B81, R82, G82, B82 and multiple spare sub-pixel areas r11, r12, r21, r22, r31, r32, r41, r42, r51, r52, r61, r62, r71, r72, r81, r82 overlap.

Fig. 10 is a top view schematically showing a lower substrate of a display device according to a fourth embodiment of the present invention. Fig. 11 is a top view schematically showing an upper substrate of a display device according to a fourth embodiment of the present invention. The lower substrate 1B of Fig. 10 and the upper substrate 2B of Fig. 11 can be assembled into another display device (not shown).

The lower substrate 1C of FIG. 10 , the upper substrate 2C of FIG. 11 and the display device formed by the lower substrate 1C and the upper substrate 2C are similar to the lower substrate 1A, the upper substrate 2A and the display device formed by the lower substrate 1A and the upper substrate 2A of the aforementioned second embodiment, and the main differences between the two are as follows.

10 and 11, in the fourth embodiment, a plurality of pixel regions PX11/PX12/PX13/PX14/PX15/PX16/PX21/PX22/PX23/PX24/PX25/PX26 include a first sub-pixel region, a second sub-pixel region, a third sub-pixel region and a spare sub-pixel region R11, G11, B11, r11/ R12, G12, B12, r12/ R13, G13, B13, r13/ R14, G14, B14, r14/ R15, G15, B15, r15/ R16, G16, B16, r16/ R21, G21, B21, r21/ R22, G22, B22, r22/ R23, G23, B23, r23/ R24, G24, B24, r24/ R25, G25, B25, r25/ R26, G26, B26, r26, and the multiple spare sub-pixel areas r11, r12, r13, r14, r15, r16, r21, r22, r23, r24, r25, r26 of the multiple pixel areas PX11/PX12/PX13/PX14/PX15/PX16/PX21/PX22/PX23/PX24/PX25/PX26 are arranged in multiple rows in an oblique direction d.

1, 1A, 1B, 1C: lower substrate 2, 2A, 2B, 2C: upper substrate 110: driving backplane 112, 112R, 112G, 112B, 112r: sub-pixel driving structure 112a: sub-pixel driving circuit 112b: pad assembly 120: first bank layer 122, 122r, 222, 222r, 252: opening 130, 130': light-emitting element 210: light-transmitting substrate 220: light-shielding pattern layer 230R, 230G, 230B: color filter pattern 240: second blocking layer 242: part 250: second bank layer 260: dimming pattern 270: first blocking layer 300: filling layer BM: light blocking pattern CF: color filter substrate DP: display device d: oblique direction E: vacant PX11, PX12, PX13, PX14, PX15, PX16, PX21, PX22, PX23, PX24, PX25, P26, PX31, PX32, PX33, PX41, PX42, PX43, PX51, PX52, PX61, PX62, PX71, PX72, PX81, PX82: pixel area QDR: color conversion pattern R11, G11, B11, R12, G12, B12, R13, G13, B13, R14, G14, B14, R15, G15, B15, R16, G16, B16, R21, G21, B21, R22, G22, B22, R23, G23, B23, R24, G24, B24, R25 , G25, B25, R26, G26, B26, R31, G31, B31, R32, G32, B32, R33, G33, B33, R41, G41, B41, R42, G42, B42, R43, G43, B43, R51, G51, B51, R52, G52, B52, R61, G61, B61, R62, G62, B62, R71, G71, B71, R72, G72, B72, R81, G81, B81 , R82, G82, B82, R11’, G11’, B11’, R12’, G12’, B12’, R13’, G13’, B 13’, R14’, G14’, B14’, R15’, G15’, B15’, R16’, G16’, B16, R21’, G21’, B21’, R22’, G22’, B22’, R23’, G23’, B23’, R24’, G24’, B24’, R25’, G25’, B25’ , R26’, G26’, B26’, R31’, G31’, B31’, R32’, G32’, B32’, R33’, G33 ’, B33’, R41’, G41’, B41’, R42’, G42’, B42’, R43’, G43’, B43’, R51’, G51’, B51’, R52’, G52’, B52’, R61’, G61’, B61’, R62’, G62’, B62’, R71’, G71’, B71’, R72’, G72’, B72’, R81’, G81’, B81’, R82’, G82’, B82’: sub-pixel area r11, r12, r13, r14, r15, r16, r21, r22, r23, r24, r25, r26, r31, r32, r33, r41, r42, r43, r51, r52, r61, r62, r71, r72, r81, r82, r11’, r12’, r13’, r14’, r15’, r16’, r21’, r22’, r23’, r24’, r25’, r26’, r31’, r32’, r33’, r41’, r42’, r43’, r51’, r52’, r61’, r62’, r71’, r72’, r81’, r82’: spare sub-pixel area SOC: light transmission and scattering pattern x: first direction y: second direction I-I’, II-II’, III-III’, IV-IV’, V-V’, VI-VI’, VII-VII’, VIII-VIII’: section lines

Figures 1A to 1G are schematic top views of the manufacturing process of the display device of the first embodiment of the present invention. Figures 2A to 2G are schematic cross-sectional views of the manufacturing process of the display device of the first embodiment of the present invention. Figures 3A to 3G are schematic cross-sectional views of the manufacturing process of the display device of the first embodiment of the present invention. Figures 4A to 4G are schematic cross-sectional views of the manufacturing process of the display device of the first embodiment of the present invention. Figures 5A to 5G are schematic cross-sectional views of the manufacturing process of the display device of the first embodiment of the present invention. Figure 6 is a schematic top view of the lower substrate of the display device of the second embodiment of the present invention. Figure 7 is a schematic top view of the upper substrate of the display device of the second embodiment of the present invention. Figure 8 is a schematic top view of the lower substrate of the display device of the third embodiment of the present invention. FIG. 9 is a schematic diagram of a top view of the upper substrate of the display device of the third embodiment of the present invention. FIG. 10 is a schematic diagram of a top view of the lower substrate of the display device of the fourth embodiment of the present invention. FIG. 11 is a schematic diagram of a top view of the upper substrate of the display device of the fourth embodiment of the present invention.

1: Lower substrate

2: Upper substrate

110: Drive backplane

112, 112R, 112G, 112B, 112r: sub-pixel drive structure

112a: Sub-pixel driving circuit

112b: pad assembly

120: First embankment layer

122, 122r, 222, 222r, 252: Opening

130: Light-emitting element

210: Translucent base

220: Shading pattern layer

230R, 230G, 230B: Color filter pattern

240: Second barrier layer

250: Second embankment layer

260: Dimming pattern

270: First barrier layer

300: Filling layer

BM: Light blocking pattern

CF: Color filter substrate

DP: Display Device

QDR: Color conversion pattern

SOC: light-transmitting scattering pattern

I-I’, II-II’: section line

Claims (9)

A display device includes: a driving backplane having a plurality of sub-pixel driving structures; a first bank layer disposed on the driving backplane and having a plurality of openings; a plurality of light-emitting elements disposed on the driving backplane, located at least a portion of the openings of the first bank layer, and electrically connected to at least a portion of the sub-pixel driving structures; a filling layer covering the light-emitting elements, the first bank layer, and the driving backplane; a first blocking layer disposed on the filling layer; a second bank layer disposed on the first blocking layer and having a plurality of openings, wherein the openings of the second bank layer overlap the openings of the first bank layer respectively; A plurality of dimming patterns are respectively arranged at the openings of the second bank layer, wherein the dimming patterns include a light blocking pattern and a color conversion pattern; A second blocking layer is arranged on the dimming patterns and the second bank layer; A light shielding pattern layer is arranged on the second blocking layer and has a plurality of openings, wherein the openings of the light shielding pattern layer overlap the openings of the second bank layer; and A plurality of color filter patterns are arranged at least a portion of the openings of the light shielding pattern layer. A display device as described in claim 1, wherein the light-blocking pattern overlaps an opening of the light-shielding pattern layer. The display device as described in claim 1, wherein the light blocking pattern is located between the first blocking layer and the second blocking layer. The display device as described in claim 1, wherein two opposite sides of the light-blocking pattern are directly in contact with the first blocking layer and the second blocking layer respectively. The display device as described in claim 1, wherein the openings of the first bank layer include a spare opening, the spare opening of the first bank layer is staggered with the light-emitting elements, and the light-blocking pattern overlaps the spare opening of the first bank layer. A display device as described in claim 1, wherein the openings of the light-shielding pattern layer include a spare opening, the spare opening of the light-shielding pattern layer is staggered with the color filter patterns, and the light-shielding pattern overlaps the spare opening of the light-shielding pattern layer. A display device as described in claim 1, wherein the sub-pixel driving structures include a first sub-pixel driving structure, a second sub-pixel driving structure, a third sub-pixel driving structure and a spare sub-pixel driving structure, the light-emitting elements are electrically connected to and overlapped on the first sub-pixel driving structure, the second sub-pixel driving structure and the third sub-pixel driving structure, the light-emitting elements are staggered with the spare sub-pixel driving structure, and the light-blocking pattern shields the spare sub-pixel driving structure. A display device as described in claim 1, wherein the light-blocking pattern shields one of the light-emitting elements. A display device as described in claim 8, wherein the light-blocking pattern overlaps with a color filter pattern.