TWI550848B - Display structure of organic light emitting display device and method for fabricating the same - Google Patents

Description

Organic light emitting display device structure and manufacturing method thereof

The present invention relates to an organic light emitting display device architecture, and more particularly to an organic light emitting display device architecture that reduces the difficulty of the process by changing the sub-pixel configuration.

Compared with LCD, OLED has active illumination, no viewing angle problem, light weight, small thickness, high brightness, high luminous efficiency, rich luminescent materials, easy color display, fast response, high-quality dynamic picture, wide temperature range, It can achieve a series of advantages such as soft display, simple technology, low cost, and strong shock resistance, so it has attracted attention as a new generation of displays.

The organic light emitting diode display includes an organic light emitting diode. The organic light-emitting diode provides an organic compound layer HIL, HTL, EML, ETL, and EIL formed between the anode and the cathode. The organic compound layer includes a hole injection layer HIL, a hole transport layer HTL, a light emitting layer EML, an electron transport layer ETL, and an electron injection layer EIL. When a driving voltage is applied to the anode electrode and the cathode electrode, the holes passing through the hole transport layer HTL and the electrons passing through the electron transport layer ETL move to the light emitting layer EML to form excitons. Therefore, the light emitting layer EML generates visible light.

Due to the popularity of today's portable electronic devices, the size requirements for displays are also increasing. Currently, small-sized and high-resolution organic light-emitting display devices for portable electronic devices have also become mainstream. However, as the size is reduced, the high-resolution organic light-emitting display device is more difficult to manufacture. Currently, the process mainly uses a fine mask method (FMM) to mass-produce the RGB light-emitting layer. When using FMM to mass produce high-resolution displays, the panel will produce minimum opening design and precision due to FMM itself, process tolerance allowed in the process of FMM design, and image recognition of RGB vapor deposition cavity of organic light-emitting display device. The alignment accuracy and the matching of the overall thermal expansion coefficient of the RGB vapor deposition chamber affect the panel whether there is color mixing. Therefore, there is a need for an organic light emitting display device architecture that reduces the difficulty of the process.

In view of the above problems in the prior art, the object of the present invention is to provide an organic light emitting display device architecture, which can reduce the difficulty of the process by arranging RGB sub-pixels, so as to easily produce small-sized and high-resolution organic materials. Light emitting display device.

An aspect of the present invention relates to an organic light emitting display device having a plurality of unit pixels independently and arranged in parallel in a column direction and a row direction, wherein the unit pixel is a rectangle having a first length, wherein each unit pixel includes a a sub-pixel, a second sub-pixel, and a third sub-pixel, wherein the first sub-pixel and the second sub-pixel are respectively located in a square of the unit pixel and are opposite to the third sub-pixel, wherein the adjacent unit pixel One of the one sub-pixel, the second sub-pixel, and the third sub-pixel are configured to be line-symmetric with each other.

Preferably, the first sub-pixel, the second sub-pixel, and the third sub-pixel may include different colors, including red (R), green (G), and blue (B) sub-pixels. missing one.

Preferably, the first sub-pixel and the second sub-pixel located in the dihedral ridge are the same rectangle and have a second length in the column direction, and the first sub-pixel and the second sub-pixel are spaced apart from each other in the column direction. An interval, and the third sub-pixel may have a third length in the column direction.

Preferably, the third length may be less than twice the second length and the first interval.

Preferably, the third length may be equal to the sum of the second length and the first interval.

Another aspect of the present invention is a method of fabricating an organic light emitting display device structure, the method comprising: preparing an insulating substrate, forming a first electrode layer having a predetermined pattern on the insulating substrate, and using a plurality of masks on the first electrode layer An organic light-emitting layer comprising an organic light-emitting display device structure is deposited, a second electrode layer having another predetermined pattern is formed on the organic light-emitting layer, and an outer portion of the second electrode layer is sealed. The organic light-emitting display device structure has a plurality of unit pixels independently and arranged in parallel in the column direction and the row direction, and the unit pixel is a rectangle having a first length, wherein each unit pixel includes a first sub-pixel and a second sub-pixel. And the third sub-pixel, wherein the first sub-pixel and the second sub-pixel are respectively located at two corners of the unit pixel and relative to the third sub-pixel, the first sub-pixel and the second sub-pixel of each adjacent unit pixel And configuring one of the third sub-pixels to be line-symmetric with each other, the plurality of masks comprising a pattern corresponding to a shape of four first sub-pixels of at least four adjacent unit pixels, and four seconds of at least four adjacent unit pixels One of the shapes of the sub-pixels and the shape of the four third sub-pixels of at least four adjacent unit pixels.

Preferably, the first sub-pixel, the second sub-pixel, and the third sub-pixel may include Different colors may include at least one of red (R), green (G), and blue (B) sub-pixels.

Preferably, the first sub-pixel and the second sub-pixel located in the dihedral ridge are the same rectangle and have a second length in the column direction, and the first sub-pixel and the second sub-pixel are spaced apart from each other in the column direction. An interval, and the third sub-pixel may have a second length in the column direction.

Preferably, the third length may be less than twice the third length and the first interval.

Preferably, the third length may be equal to the sum of the second length and the first interval.

In summary, according to the above problems, the present invention provides an organic light emitting display device architecture, which can reduce the difficulty of mask fabrication used in the process by RGB sub-pixels, so that a small size can be easily fabricated. A high-resolution organic light-emitting display device.

1‧‧‧Organic Luminescent Diodes

100‧‧‧Insert substrate

101‧‧‧Anode electrode

102‧‧‧ hole injection layer

103‧‧‧ hole transport layer

104‧‧‧Lighting layer

105‧‧‧Electronic transport layer

106‧‧‧electron injection layer

107‧‧‧Cathode electrode

11‧‧‧Unit pixels

111‧‧‧Red subpixel

112‧‧‧Blue subpixel

113‧‧‧Green subpixel

L1‧‧‧ first length

L2‧‧‧ second length

L3‧‧‧ third length

L41, L42, L43‧‧‧ fourth length

L51, L52, L53‧‧‧ fifth length

L61, L62, L63‧‧‧ sixth length

L71, L72, L73‧‧‧ seventh length

D1‧‧‧ first interval

D2‧‧‧second interval

D3‧‧‧ third interval

D41, D42, D43‧‧‧ fourth interval

D51, D52, D53‧‧‧ fifth interval

D61, D62‧‧‧ sixth interval

D71, D72, D73‧‧‧ seventh interval

D81‧‧‧ eighth interval

W1‧‧‧ first width

W2‧‧‧ second width

W41, W42, W43‧‧‧ fourth width

W51, W52, W53‧‧‧ fifth width

M1, M2‧‧‧ opening pattern

120, 130, 140, 150, 160, 170‧‧‧ masks

R1‧‧‧ first area

R2‧‧‧ second area

R3‧‧‧ third area

1 is a cross-sectional view of an organic light emitting diode according to an embodiment of the present invention.

2 is a partial plan view of an organic light emitting display device architecture in accordance with an embodiment of the present invention.

3 is an enlarged view of a unit pixel of an organic light emitting display device architecture according to an embodiment of the present invention.

4 is a partial plan top view of an organic light emitting display device architecture in accordance with another embodiment of the present invention.

Fig. 5 is an enlarged view of a unit pixel of an organic light emitting display device architecture according to another embodiment of the present invention.

Figure 6 is a partial plan view showing the structure of an organic light emitting display device according to still another embodiment of the present invention.

Figure 7 is an enlarged view of a unit pixel of an organic light-emitting display device architecture according to still another embodiment of the present invention.

8A is a schematic diagram of a mask for fabricating a red sub-pixel and a blue sub-pixel according to an embodiment of the present invention.

Figure 8B is a schematic illustration of a mask for fabricating green sub-pixels in accordance with an embodiment of the present invention.

FIG. 9A is a schematic diagram of a mask for fabricating a red sub-pixel and a blue sub-pixel according to another embodiment of the present invention.

Figure 9B is a schematic illustration of a mask for fabricating green sub-pixels in accordance with another embodiment of the present invention.

FIG. 10A is a schematic diagram of a mask for fabricating a red sub-pixel and a green sub-pixel according to still another embodiment of the present invention.

Fig. 10B is a schematic view of a mask for fabricating a blue sub-pixel according to still another embodiment of the present invention.

In order to understand the technical characteristics, content and advantages of the creation and the effects that can be achieved, the author will use the creation of the drawings in detail with reference to the drawings, and the drawings used therein, The subject matter is only for the purpose of illustration and supplementary explanation, and may not be the true proportion and precise configuration after the implementation of the creation, so it is not The scope of the proportions and configuration of the attached drawings should be interpreted and limited in the scope of the actual implementation of the creation, which is described first.

The embodiments of the dimming device according to the present invention will be described below with reference to the related drawings. For the sake of understanding, the same components in the following embodiments are denoted by the same reference numerals.

As shown in Fig. 1, there is shown a cross-sectional view of an organic light emitting diode according to an embodiment of the present invention. As shown in the figure, the organic light-emitting diode 1 includes an insulating substrate 100, an anode electrode 101, a hole injection layer 102, a hole transport layer 103, a light-emitting layer 104, an electron transport layer 105, and electron injection from bottom to top. Layer 106, cathode electrode 107. When a driving voltage is applied to the anode electrode 101 and the cathode electrode 107, the holes passing through the hole transport layer 103 and the electrons passing through the electron transport layer 105 are moved to the light emitting layer 104 to form excitons. Therefore, the light emitting layer 104 generates visible light. Wherein, the light-emitting layer 104 can select different materials according to the color of the light to be generated.

In this embodiment, an active organic light emitting display is taken as an example, and the principle is that the organic light emitting diode (OLED) in the plurality of sub-pixels is driven by current to emit light, and the main components in the sub-pixel include the organic light-emitting diode 1 a plurality of thin film transistors and a plurality of capacitors are connected to a display signal (Data line), a scan signal (Scan line), and a driving voltage source to drive the organic light emitting diode 1 to emit light. The above is a driving method of a conventional organic light emitting display. In order to avoid unnecessarily obscuring the focus of the present invention, it will not be described here.

2 is a partial plan view of an organic light emitting display device architecture according to an embodiment of the invention, and FIG. 3 is an enlarged view of a unit pixel of an organic light emitting display device architecture according to an embodiment of the invention. Wherein, in the organic light-emitting display device, a plurality of unit pixels 11 arranged in the row direction and the column direction are sequentially included, and each single The bit pixels 11 further include a red sub-pixel 111, a blue sub-pixel 112, and a green sub-pixel 113, respectively. In this embodiment, as shown in FIG. 3, the unit pixel 11 is a square having a first length L1, wherein the red sub-pixel 111 and the blue sub-pixel 112 are respectively located at two corners of the unit pixel 11, and are The same rectangle, but not limited to, is only an example here. The red sub-pixel 111 and the blue sub-pixel 112 have a second length L2 in the column direction, a first width W1 in the row direction, and the left side of the red sub-pixel 111 and the right side of the blue sub-pixel 112 are spaced apart from each other by a first interval D1. . Here, taking the resolution of 500 ppi as an example, L1 can be in the range of 50 to 52 μm, more precisely, L1 can be 51 μm. The green sub-pixel 113 has a rectangular shape and has a third length L3 and a second width W2. The green sub-pixel 113 is located in the other corner of the unit pixel 11 opposite to the red sub-pixel 111 and the blue sub-pixel 112. The lower side of the sub-pixel 113 is spaced apart from the red sub-pixel 111 by a second interval D2, and the red sub-pixel 111, the blue sub-pixel 112, and the green sub-pixel 113 are respectively separated from the edge D3 of the unit pixel 11 nearest to each other. In the present embodiment, the second length L2 is 11 μm, the first width W1 is 15 μm, the second width W2 is 7 μm, the third length L3 is 21.5 μm, and the D3 is 4 μm. The above lengths are for illustrative purposes only and are not intended to limit the described embodiments. According to the above size, the aperture ratio of the blue sub-pixel and the red sub-pixel can be calculated by the calculation formula of the aperture ratio (11*15)/(17*51)=19%, and the aperture ratio of the green sub-pixel is (21.5*). 7) / (17 * 51) = 17.4%.

Referring to FIG. 2, the red sub-pixel 111, the blue sub-pixel 112, and the green sub-pixel 113 of each adjacent unit pixel 11 are line-symmetric with each other, so that each unit pixel 11 can be as shown in FIG. The sub-pixels of the same color are adjacent to each other and are distributed on the surface of the organic light-emitting display in units of four sub-pixels, as shown in the regions R1, R2 and R3 in FIG. Such a distribution is beneficial to reduce the manufacturing difficulty of the FMM in the subsequent process of using the FMM.

4 is a partial plan view of an organic light emitting display device architecture according to another embodiment of the present invention, and FIG. 5 is an enlarged view of a unit pixel of an organic light emitting display device architecture according to another embodiment of the present invention. The organic light-emitting display device includes a plurality of unit pixels 11 arranged in the row direction and the column direction, and each of the unit pixels 11 further includes a red sub-pixel 111, a blue sub-pixel 112, and a green sub-pixel 113. In this embodiment, as shown in FIG. 5 , the unit pixel 11 is a square having a first length L1 , wherein the red sub-pixel 111 and the blue sub-pixel 112 are respectively located at two corners of the unit pixel 11 and are The same rectangle, but not limited to, is only an example here. The red sub-pixel 111 and the blue sub-pixel 112 have a second length L2 in the column direction, a first width W1 in the row direction, and the left side of the red sub-pixel 111 and the right side of the blue sub-pixel 112 are spaced apart from each other by a first interval D1. . Here, taking the resolution of 500 ppi as an example, L1 can be in the range of 50 to 52 μm, more precisely, L1 can be 51 μm. The green sub-pixel 113 is rectangular and has a third length L3 and a second width W2. Unlike the previous embodiment, the green sub-pixel 113 is in the unit pixel 11 and the red sub-pixel 111 and the blue sub-pixel 112. On the other side, the lower side of the green sub-pixel 113 is spaced apart from the red sub-pixel 111 and the blue sub-pixel by a second interval D2, and the red sub-pixel 111, the blue sub-pixel 112, and the green sub-pixel 113 are respectively closest to each other. The edge D3 of the unit pixel 11. In the present embodiment, the second length L2 is 11 μm, the first width W1 is 15 μm, the second width W2 is 7 μm, the third length L3 is 43 μm, and the D3 is 4 μm. The above lengths are for illustrative purposes only and are not intended to limit the described embodiments. According to the above size, the aperture ratio of the blue sub-pixel and the red sub-pixel can be calculated by the calculation formula of the aperture ratio (11*15)/(17*51)=19%, and the aperture ratio of the green sub-pixel is (43*). 7) / (17 * 51) = 34.7%.

Please refer to FIG. 4, in which the red sub-pixels of each adjacent unit pixel 11 111. The arrangement of the blue sub-pixel 112 and the green sub-pixel 113 is line-symmetric with each other. Therefore, as shown in FIG. 4, in each unit pixel 11, sub-pixels of the same color are adjacent to each other and have four sub-pixels. The unit is distributed on the surface of the organic light emitting display, see the first region R1, the second region R2, and the third region R3 in FIG. Different from the foregoing embodiment, the third region R3 can further span the surface of the organic light emitting display, and the design is also beneficial for further reducing the manufacturing difficulty of the FMM in the subsequent process of using the FMM.

6 is a partial plan view of an organic light emitting display device architecture according to still another embodiment of the present invention, and FIG. 7 is an enlarged view of a unit pixel of an organic light emitting display device architecture according to still another embodiment of the present invention. The organic light-emitting display device includes a plurality of unit pixels 11 arranged in the row direction and the column direction, and each of the unit pixels 11 further includes a red sub-pixel 111, a blue sub-pixel 112, and a green sub-pixel 113. In this embodiment, as shown in FIG. 7, the unit pixel 11 is a square having a first length L1, wherein the red sub-pixel 111 and the green sub-pixel 113 are respectively located at two corners of the unit pixel 11, and are the same. The rectangle is, but not limited to, only an example here. The red sub-pixel 111 and the green sub-pixel 113 have a second length L2 in the column direction, a first width W1 in the row direction, and a left side of the red sub-pixel 111 and a right side of the green sub-pixel 113 are spaced apart from each other by a first interval D1. Here, taking the resolution of 500 ppi as an example, L1 can be in the range of 50 to 52 μm, more precisely, L1 can be 51 μm. The blue sub-pixel 112 has a rectangular shape and has a third length L3 and a second width W2. The difference from the previous embodiment is that the blue sub-pixel 112 is in the unit pixel 11 and the red sub-pixel 111 and the green sub-pixel 113. On the other side, the lower side of the blue sub-pixel 112 is spaced apart from the red sub-pixel 111 and the green sub-pixel 113 by a second interval D2, and the red sub-pixel 111, the blue sub-pixel 112, and the green sub-pixel 113 are respectively closest to each other. The edge D3 of the unit pixel 11 is. in In the present embodiment, the second length L2 is 11 μm, the first width W1 is 15 μm, the second width W2 is 7 μm, the third length L3 is 43 μm, and the D3 is 4 μm. The above lengths are for illustrative purposes only and are not intended to limit the described embodiments. According to the above size, the aperture ratio of the green sub-pixel and the red sub-pixel can be calculated by the calculation formula of the aperture ratio (11*15)/(17*51)=19%, and the aperture ratio of the blue sub-pixel is (43*). 7) / (17 * 51) = 34.7%. Due to the conventional organic luminescent material technology, in particular, the blue sub-pixel has a short life due to material limitation. With the above invention, the blue sub-pixel can have a large aperture ratio and thus further improve its lifetime.

Referring to FIG. 6 , the arrangement of the red sub-pixel 111 , the blue sub-pixel 112 , and the green sub-pixel 113 of each adjacent unit pixel 11 is linearly symmetrical with each other, so that each unit pixel can be as shown in FIG. 6 . 11 , the sub-pixels of the same color are adjacent to each other, see the first region R1 and the third region R3 in FIG. 6 are distributed on the surface of the organic light-emitting display in units of four sub-pixels, and the second region R2 and the foregoing embodiment The difference is that the surface of the organic light-emitting display is further traversed. This design is beneficial to further reduce the manufacturing difficulty of the FMM in the subsequent process of using the FMM.

A method of fabricating an organic light emitting display device architecture according to an exemplary embodiment of the present invention will now be described with reference to FIGS. 2, 3, 8A and 8B. 8A is a schematic view of a mask for fabricating a red sub-pixel and a blue sub-pixel according to an embodiment of the present invention, and FIG. 8B is a schematic view of a mask for fabricating a green sub-pixel according to an embodiment of the present invention. First, an insulating substrate is prepared, and then a first electrode layer having a predetermined pattern is formed on the insulating substrate, and then vapor deposition on the first electrode layer by the first mask 120 and the second mask 130 includes the second and third figures. An organic light-emitting layer of the organic light-emitting display device structure, and then forming a second electrode layer having another predetermined pattern on the organic light-emitting layer, and finally sealing the outside of the second electrode layer. The organic light-emitting layer includes the hole injection layer 102, the hole transport layer 103, and the light-emitting layer 104 as shown in FIG. a member such as an electron transport layer 105 and an electron injection layer 106, and the organic light-emitting display device structure has a plurality of unit pixels 11 which are independently arranged in parallel in the column direction and the row direction as shown in FIG. 2, and the unit pixel 11 is disposed as above. The description is omitted here.

As shown in FIG. 8A, the first mask 120 includes an opening pattern M1 corresponding to the shape of at least four red sub-pixels 111 adjacent to the unit pixel 11, having a fourth length L41 and a fourth width W41, and corresponding to In the distribution area of the red sub-pixel 111 in FIG. 2, that is, the first area R1, the plurality of opening patterns M1 are arranged in a staggered arrangement as shown in FIG. 8A, wherein the singular column is separated from the opening pattern M1 of the double-numbered column by a fourth interval. D41, the opening patterns M1 of the singular column and the singular column are apart from each other by the fifth interval D51, and the opening patterns M1 are apart from each other by the sixth interval D61 in the column direction. In addition, in the process of the red sub-pixel 111, the opening pattern M1 can jointly form a plurality of red sub-pixels 111 in the first region R1 by vapor deposition. In this embodiment, the mask for making the blue sub-pixel 112 can also use the first mask because the position of the second region R2 including the plurality of blue sub-pixels 112 is only the translation of the first region R1. M1 produces a blue sub-pixel 112. Here, in order to correspond to the size of the unit pixel 11 according to the embodiment of the present invention, the fourth length L41 is 51 μm, the fourth width W41 is 59 μm, the fourth interval D41 is 43 μm, and the fifth interval D51 is 145 μm. The sixth interval D61 is 51 μm. The length herein is for example only and is not intended to limit the described embodiments.

Referring to FIG. 8B, the second mask 130 includes an opening pattern M2 corresponding to the shape of at least four green sub-pixels 113 adjacent to the unit pixel 11, having a fifth length L51 and a fifth width W51, and corresponding to In the distribution area of the green sub-pixel 113 in FIG. 2, that is, the third area R3, the plurality of opening patterns M2 are arranged in an array as shown in FIG. 8B, wherein each column opening pattern M2 is separated from the seventh interval. D71, and the opening pattern M2 is apart from each other by an eighth interval D81 in the column direction. In addition, in the process of the green sub-pixel 113, the opening pattern M2 can collectively produce a plurality of green sub-pixels 113 in the third region R3 by vapor deposition. In order to correspond to the size of the unit pixel 11 according to the embodiment of the present invention, the fifth length L51 is 72 μm, the fifth width W51 is 43 μm, the seventh interval D71 is 59 μm, and the eighth interval D81 is 30 μm. The length herein is for example only and is not intended to limit the described embodiments.

In the conventional organic light-emitting display device architecture, RGB sub-pixels are sequentially arranged in each pixel. However, the conventional sub-pixel RGB arrangement cannot support excessive resolution, for example, at a sub-pixel size of 17 μm *51 μm. An organic light-emitting display having a resolution of 500 ppi cannot be produced, and since the error tolerance of the conventional vapor deposition process is about +/- 10 μm, the desired high resolution cannot be produced under the conventional technique. Therefore, with the organic light-emitting display device structure provided by the present invention, the step of making a finer FMM can be effectively eliminated by changing the configuration of the sub-pixels, and a mask having a larger opening pattern can be used, and the required mask can be used. The size of the opening pattern is within the error tolerance of the evaporation process, and thereby producing the desired high-resolution organic light-emitting display.

A method of fabricating an organic light emitting display device architecture according to another exemplary embodiment of the present invention will now be described with reference to FIGS. 4, 5, 9A and 9B. 9A is a schematic view of a mask for fabricating a red sub-pixel and a blue sub-pixel according to another embodiment of the present invention, and FIG. 9B is a mask for fabricating a green sub-pixel according to another embodiment of the present invention. Schematic diagram. First, an insulating substrate is prepared, and then a first electrode layer having a predetermined pattern is formed on the insulating substrate, and then vapor deposition on the first electrode layer by the first mask 140 and the second mask 150 includes the fourth and fifth figures. An organic light-emitting layer of an organic light-emitting display device structure, and then formed on the organic light-emitting layer with another predetermined pattern One of the second electrode layers is finally sealed to the outside of the second electrode layer. The organic light-emitting layer includes the hole injection layer 102, the hole transport layer 103, the light-emitting layer 104, the electron transport layer 105, and the electron injection layer 106, as shown in FIG. 1, and the organic light-emitting display device has the same structure. 4 shows a plurality of unit pixels 11 which are independent and arranged in parallel in the column direction and the row direction. The arrangement of the unit pixels 11 is as described above, and thus detailed description thereof will be omitted.

As shown in FIG. 9A, the first mask 140 includes an opening pattern M1 corresponding to the shape of at least four red sub-pixels 111 adjacent to the unit pixel 11, having a fourth length L42 and a fourth width W42, and corresponding to In the distribution area of the red sub-pixel 111 in FIG. 4, that is, the first area R1, the plurality of opening patterns M1 are arranged in a staggered arrangement as shown in FIG. 9A, wherein the singular column is separated from the opening pattern M1 of the double-numbered column by a fourth interval D42. The opening patterns M1 of the singular column and the singular column are apart from each other by the fifth interval D52, and the opening patterns M1 are apart from each other by the sixth interval D62 in the column direction. In addition, in the process of the red sub-pixel 111, the opening pattern M1 can jointly form a plurality of red sub-pixels 111 in the first region R1 by vapor deposition. In this embodiment, the mask for making the blue sub-pixel 112 can also use the first mask because the position of the second region R2 including the plurality of blue sub-pixels 112 is only the translation of the first region R1. M1 produces a blue sub-pixel 112. Here, in order to correspond to the size of the unit pixel 11 according to the embodiment of the present invention, the fourth length L42 is 51 μm, the fourth width W42 is 59 μm, the fourth interval D42 is 43 μm, and the fifth interval D52 is 145 μm. The sixth interval D61 is 51 μm. The length herein is for example only and is not intended to limit the described embodiments.

Referring to FIG. 9B, the second mask 150 includes an aperture pattern M2 corresponding to the shape of the plurality of green sub-pixels 113 of the plurality of unit pixels 11, having a fifth width W52, and corresponding to the green sub-pixel in FIG. 113 distribution area, That is, in the third region R3, the plurality of opening patterns M2 are arranged in an array as shown in FIG. 9B, wherein each of the column opening patterns M2 is apart from the seventh interval D72. In addition, in the process of the green sub-pixel 113, the opening pattern M2 can collectively produce a plurality of green sub-pixels 113 in the third region R3 by vapor deposition. In order to correspond to the size of the unit pixel 11 according to the embodiment of the present invention, the fifth width W52 is 43 μm, and the seventh interval D72 is 59 μm. The length herein is for example only and is not intended to limit the described embodiments.

A method of fabricating an organic light emitting display device architecture in accordance with another exemplary embodiment of the present invention will now be described with reference to FIGS. 6, 7, 10A and 10B. 10A is a schematic view of a mask for fabricating a red sub-pixel and a green sub-pixel according to still another embodiment of the present invention, and FIG. 10B is a mask for fabricating a blue sub-pixel according to still another embodiment of the present invention. Schematic diagram. First, an insulating substrate is prepared, and then a first electrode layer having a predetermined pattern is formed on the insulating substrate, and then vapor deposition on the first electrode layer by the first mask 160 and the second mask 170 includes the sixth and seventh figures. An organic light-emitting layer of the organic light-emitting display device structure, and then forming a second electrode layer having another predetermined pattern on the organic light-emitting layer, and finally sealing the outside of the second electrode layer. The organic light-emitting layer includes the hole injection layer 102, the hole transport layer 103, the light-emitting layer 104, the electron transport layer 105, and the electron injection layer 106, as shown in FIG. 1, and the organic light-emitting display device has the same structure. 6 shows a plurality of unit pixels 11 which are independent and arranged in parallel in the column direction and the row direction. The arrangement of the unit pixels 11 is as described above, and thus detailed description thereof will be omitted.

As shown in FIG. 10A, the first mask 160 includes an opening pattern M1 corresponding to the shape of at least four adjacent red sub-pixels 111 of the unit pixel 11, having a fourth length L43 and a fourth width W43, and corresponding to In the distribution area of the red sub-pixel 111 in FIG. 6, that is, the first area R1, a plurality of opening patterns M1 are presented as The staggered arrangement shown in FIG. 9A, wherein the singular column and the double-numbered column opening pattern M1 are apart from the fourth interval D43, the singular column and the singular column opening pattern M1 are apart from each other by the fifth interval D53, and the opening pattern M1 is in the column direction with each other. The sixth interval D63 is apart. In addition, in the process of the red sub-pixel 111, the opening pattern M1 can jointly form a plurality of red sub-pixels 111 in the first region R1 by vapor deposition. In this embodiment, the mask for fabricating the green sub-pixel 113 can also be fabricated using the first mask M1 because the position of the third region R3 including the plurality of green sub-pixels 113 is only the translation of the first region R1. Green sub-pixel 113. Here, in order to correspond to the size of the unit pixel 11 according to the embodiment of the present invention, the fourth length L43 is 51 μm, the fourth width W43 is 59 μm, the fourth interval D43 is 43 μm, and the fifth interval D53 is 145 μm. The sixth interval D63 is 51 μm. The length herein is for example only and is not intended to limit the described embodiments.

Referring to FIG. 10B, the second mask 160 includes an opening pattern M2 corresponding to a plurality of shapes of the plurality of blue sub-pixels 112 adjacent to the unit pixel 11, having a fifth width W53, and corresponding to FIG. The distribution area of the middle blue sub-pixel 112, that is, the second area R2, the plurality of opening patterns M2 are arranged in an array as shown in FIG. 10B, wherein each column opening pattern M2 is apart from the seventh interval D73. In addition, in the process of the blue sub-pixel 112, the opening pattern M2 can jointly form a plurality of blue sub-pixels 112 in the second region R2 by vapor deposition. In order to correspond to the size of the unit pixel 11 according to an embodiment of the present invention, the fifth width W53 is 43 μm, and the seventh interval D73 is 59 μm. The length herein is for example only and is not intended to limit the described embodiments.

Similarly, the organic light emitting display device architecture provided by another embodiment and another embodiment of the present invention can effectively eliminate the step of making a finer FMM by changing the configuration of the sub-pixels as described above. Can use the opening pattern is larger The mask, the size of the opening pattern of the mask required is within the error tolerance of the evaporation process, and thereby the desired high-resolution organic light-emitting display is produced.

The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of this creation shall be included in the scope of the appended patent application.

R1‧‧‧ first area

R2‧‧‧ second area

R3‧‧‧ third area

11‧‧‧Unit pixels

111‧‧‧Red subpixel

112‧‧‧Blue subpixel

113‧‧‧Green subpixel

Claims (10)

An organic light-emitting display device structure having a plurality of unit pixels independently and arranged in parallel in a column direction and a row direction, the unit pixel being a rectangle having a first length, wherein each of the unit pixels includes a first sub- a pixel, a second sub-pixel, and a third sub-pixel, wherein the first sub-pixel and the second sub-pixel are respectively located at two corners of the unit pixel and relative to the third sub-pixel, wherein the column direction The first sub-pixel, the second sub-pixel, and the third sub-pixel are arranged in line symmetry with each other in the unit pixel adjacent to each other in the row direction. The organic light emitting display device architecture of claim 1, wherein the first sub-pixel, the second sub-pixel, and the third sub-pixel include different colors, including red (R), green (G) And at least one of the blue (B) sub-pixels. The OLED device of claim 2, wherein the first sub-pixel and the second sub-pixel located in the dihedral have a second length in a column direction, the first sub-pixel and The second sub-pixel is separated by a first interval, and the third sub-pixel has a third length in the column direction. The organic light emitting display device architecture of claim 3, wherein the third length is less than twice the second length and the first interval. The organic light emitting display device structure of claim 3, wherein the third length is equal to twice the second length and the first The sum of the intervals. A manufacturing method of an organic light emitting display device structure, comprising: preparing an insulating substrate; forming a first electrode layer having a predetermined pattern on an insulating substrate; and depositing a plurality of masks on the first electrode layer An organic light emitting layer comprising an organic light emitting display device structure; forming a second electrode layer having another predetermined pattern on the organic light emitting layer; and comprising the first electrode, the organic light emitting layer and the second electrode layer An external sealing of an organic light emitting device; wherein the organic light emitting display device has a plurality of unit pixels independently and arranged in parallel in the column direction and the row direction, wherein the unit pixel is a rectangle having a first length, wherein each unit The pixel system includes a first sub-pixel, a second sub-pixel, and a third sub-pixel, and the first sub-pixel and the second sub-pixel are respectively located at two corners of the unit pixel and are opposite to the third a sub-pixel, wherein each of the first sub-pixels, the second sub-pixels, and the third sub-pixels of the adjacent unit pixels are line-symmetric with each other, the plurality of The cover includes an opening pattern corresponding to at least four adjacent ones of the unit pixels, and an opening pattern of at least four of the four sub-pixels of the unit pixel and at least four One of the shapes of the four third sub-pixels adjacent to the unit pixel is an opening pattern. The method of claim 6, wherein the first sub-pixel, the second sub-pixel, and the third sub-pixel include different colors, including red (R), green (G), and blue. (B) at least one of the sub-pixels. The method of claim 7, wherein the first sub-pixel and the second sub-pixel located in the dice have a second length, and the first sub-pixel and the second sub-pixel are apart from each other An interval, and the third sub-pixel has a third length. The method of claim 8, wherein the third length is less than twice the second length and the first interval. The method of claim 8, wherein the third length is equal to twice the second length and the first interval.