KR102569486B1 - Portable device - Google Patents

Abstract

A portable device of the present invention includes a display panel having a pixel array structure including a plurality of sub-pixels for displaying an image, and a processing unit that receives first data and generates second data using the first data. do. The plurality of sub-pixels include first sub-pixels aligned with each other along a second direction, and second sub-pixels aligned with each other along a first direction different from the second direction and alternately arranged with each other along the first direction. and third sub-pixels. The first sub-pixels and the second sub-pixels are alternately arranged along a third direction different from the first and second directions, and the first sub-pixels and the third sub-pixels are alternately arranged along the third direction. are arranged

Description

Portable device {PORTABLE DEVICE}

The present invention relates to a portable device, and more particularly, to a portable device capable of improving image quality.

An organic light emitting display device displays an image using an organic light emitting diode (OLED), which is a self-light emitting device, and is attracting attention as a next-generation display device with excellent luminance and color purity.

Such an organic light emitting display device constitutes a plurality of pixels using red sub-pixels, green sub-pixels, and blue sub-pixels, and displays various color images through these.

The red sub-pixels, green sub-pixels, and blue sub-pixels may be arranged in various forms, and are generally arranged in a stripe pattern. The stripe type is a type in which subpixels of the same color are arranged in units of columns.

However, when the sub-pixels are arranged in a stripe pattern, the aperture ratio is lowered due to the black matrix located between the respective sub-pixels, and the high-resolution expression capability is lowered.

To overcome this problem, "ClairVoyante Laboratories" proposed a pixel arrangement structure called "The Pentile Matrix color pixel arrangement". In the pentile matrix pixel arrangement structure, red subpixels and blue subpixels are alternately formed in the same column, and green subpixels are formed in an adjacent column. Such a pentile matrix pixel arrangement structure has an advantage in that the number of sub-pixels is reduced to about 2/3 compared to the stripe type, and thus a high ratio can be secured. In addition, when a pentile matrix pixel arrangement structure is applied, high-resolution expression capability is improved, and a structure in which a vertical line pattern by a specific pixel is not recognized has an advantage of improving image quality.

However, in the case of the conventional pentile matrix structure, there is a problem in that green and red colors are recognized as lines (greenish, pinkish) at the edge.

Accordingly, an object of an embodiment of the present invention is to provide a portable device capable of improving image quality.

A portable device according to embodiments of the present invention receives a display panel having a pixel array structure including a plurality of sub-pixels for displaying an image, receives first data, and uses the first data to obtain second data. It may include a processing unit that generates. The plurality of sub-pixels include first sub-pixels aligned with each other along a second direction, and second sub-pixels aligned with each other along a first direction different from the second direction and alternately arranged with each other along the first direction. It may include sub-pixels and third sub-pixels. The first sub-pixels and the second sub-pixels are alternately arranged along a third direction different from the first and second directions, and the first sub-pixels and the third sub-pixels are arranged in the third direction. They can be arranged alternately along three directions.

In one embodiment, the display panel further includes a first edge and a second edge facing the first edge in the first direction, the first edge and the second edge extending along the second direction. It can be.

In an exemplary embodiment, sub-pixels positioned at one of the first edge and the second edge among the plurality of sub-pixels include a group of the first sub-pixels arranged along the second direction, and Among the plurality of sub-pixels, sub-pixels positioned on the other one of the first edge and the second edge may include a group of the second sub-pixels and the third sub-pixels arranged along the second direction. can

In an embodiment, among the plurality of sub-pixels, sub-pixels closest to the first edge may include only the first sub-pixels or only include the second sub-pixels and the third sub-pixels.

In one embodiment, the second data is generated by performing a sub pixel rendering process on the first data, the plurality of sub pixels are arranged in a Pentile pixel arrangement, and the sub pixel Pixel rendering can be optimized for the pentile pixel arrangement.

In one embodiment, the second data is generated by performing a dimming process on the first data, and the dimming process is supplied corresponding to at least one of the edges of the display panel among the first data. It may include a process of reducing gradation values of data.

In an embodiment, the processing unit may adjust brightness of sub-pixels closest to the first edge among the plurality of sub-pixels.

In an embodiment, the processing unit may adjust brightness of sub-pixels closest to the second edge among the plurality of sub-pixels.

In an embodiment, the second data is different from the first data and may include rendering data and grayscale value adjustment data of the first data.

In an embodiment, the portable device includes a data driver that receives the second data and provides the second data to the first sub-pixels, the second sub-pixels, and the third sub-pixels. can include more. The data driver may receive the second data from the processor.

In an embodiment, sizes of the first sub-pixels may be smaller than sizes of the second sub-pixels and sizes of the third sub-pixels.

In an embodiment, the plurality of sub-pixels include first sub-pixel sets and second sub-pixel sets that are alternately arranged along the second direction, and the first sub-pixel sets are the first sub-pixel sets. and the second sub-pixel sets may include the second sub-pixels and the third sub-pixels.

In an embodiment, at least two of the first sub-pixels are alternately arranged with the second sub-pixels along the third direction or a fourth direction crossing the third direction, and the first sub-pixels are arranged alternately with the second sub-pixels. At least two of them may be alternately arranged with the third sub-pixels along the third or fourth direction.

In one embodiment, each of the plurality of sub-pixels includes a 1-1 sub-pixel among the first sub-pixels and one adjacent to the 1-1-th sub-pixel among the second sub-pixels. First sub-pixel groups, and second sub-pixels each including one adjacent to the 1-2 sub-pixels among the first sub-pixels and the 1-2 sub-pixels among the third sub-pixels Can be made up of groups. The first sub-pixel groups and the second sub-pixel groups may be alternately arranged along the first direction and the second direction.

In an exemplary embodiment, the first sub-pixels of the first sub-pixel groups extend in a fourth direction crossing the third direction, and the first sub-pixels of the second sub-pixel groups extend in the third direction. may be extended.

In an embodiment, two adjacent center portions of the second sub-pixels and two adjacent center portions of the third sub-pixels are located at each vertex of a virtual quadrangle, and one of the first sub-pixels is the virtual rectangle. can be located within the rectangle of

In an exemplary embodiment, four center portions closest to each other among the first sub-pixels are located at vertexes of a virtual square, only one of the second sub-pixels is located within the virtual square, or the third sub-pixels are located at vertices of the virtual square. Only one of them may be located within the virtual rectangle.

In an exemplary embodiment, the plurality of sub-pixels include first sub-pixel rows and second sub-pixel rows that are alternately arranged along the third direction, and each of the first sub-pixel rows corresponds to the first sub-pixels. and the second sub-pixel rows, each of the second sub-pixel rows including the first sub-pixels and the third sub-pixels, each of the first sub-pixel rows comprising the first sub-pixel rows on the first sub-pixel rows; When all of the sub-pixels arranged along a fourth direction intersecting the third direction are simultaneously driven, light of a first mixed color is generated, and each of the second sub-pixel rows is disposed on the second sub-pixel rows. When all of the sub-pixels arranged along four directions are simultaneously driven, light of a second mixed color different from the first mixed color may be generated.

In an embodiment, the sub-pixels on the first sub-pixel rows have two different sizes, the sub-pixels on the second sub-pixel rows have two different sizes, and the first sub-pixel rows on the first sub-pixel rows have two different sizes. One sub-pixel may be oriented differently from the first sub-pixel on the second sub-pixel rows.

In one embodiment, the first mixed color is cyan, the second mixed color is yellow, the first sub-pixels, the second sub-pixels, and the third sub-pixels. The pixels may include self-light emitting elements.

In one embodiment, the first sub-pixels include a first organic light emitting diode emitting light of a first color, and the second sub-pixels include a second organic light emitting diode emitting light of a second color. , The third sub-pixels may include a third organic light emitting diode emitting light of a third color, the first color may be green, the second color may be blue, and the third color may be red.

In an embodiment, a first side of any one of the first sub-pixels is parallel to an opposite side of an adjacent one of the second sub-pixels, and a second side of any one of the first sub-pixels is parallel to an opposite side of an adjacent one of the second sub-pixels. It may be parallel to the opposite side of one adjacent one of the third sub-pixels.

In an embodiment, the first set of sub-pixels is aligned with the second set of sub-pixels along the third direction, and the other set of first sub-pixels is disposed along the third direction. It may be arranged in alignment with a set of sub-pixels.

In an embodiment, the plurality of sub-pixels have an RGBG structure in which the number of the first sub-pixels is twice the number of the second sub-pixels and the number of the third sub-pixels is equal to the number of the second sub-pixels. can be arranged

In an embodiment, at least one of the first sub-pixels or at least one of the third sub-pixels is positioned between any two of the second sub-pixels, and at least one of the first sub-pixels Alternatively, at least one of the second sub-pixels may be positioned between any two of the third sub-pixels.

In an exemplary embodiment, each of the plurality of sub-pixels includes two first sub-pixels among the first sub-pixels, one second sub-pixel among the second sub-pixels, and one among the third sub-pixels. It is composed of pixel units including one third sub-pixel, the pixel units are arranged along the first direction within pixel unit rows arranged along the second direction, and the first one of the pixel units Two pixel units adjacent to each other in the direction may be disposed directly adjacent to each other.

In one embodiment, the two first sub-pixels among the first sub-pixels may extend in different directions.

In one embodiment, the plurality of sub-pixels may include organic light emitting diodes.

In one embodiment, the first sub-pixels include a first organic light emitting diode emitting light of a first color, and the second sub-pixels include a second organic light emitting diode emitting light of a second color. , The third sub-pixels may include a third organic light emitting diode emitting light of a third color.

In an embodiment, the first sub-pixels may have smaller areas than the second sub-pixels and the third sub-pixels, and the second sub-pixels may have a larger area than the third sub-pixels.

In one embodiment, the first color may be green, the second color may be blue, and the third color may be red.

According to the portable device of the present invention, the luminance of sub-pixels located at the outermost edge is lowered, and accordingly, it is possible to prevent green and red colors from being recognized as stripes.

1 is a diagram showing a pixel arrangement structure of an organic light emitting display device according to an embodiment of the present invention.
2A to 2D are diagrams illustrating patterns of data corresponding to positions of panels.
3A to 3D are diagrams illustrating that a specific color is recognized in the form of a line corresponding to a position of a panel.
4 is a diagram showing an organic light emitting display device according to an embodiment of the present invention.
5 is a diagram showing an embodiment of a data processing unit according to an embodiment of the present invention.
6 is a flowchart illustrating an operation process of a dimming unit according to an embodiment of the present invention.

Hereinafter, preferred embodiments in which those skilled in the art can easily practice the present invention will be described in detail with reference to FIGS. 1 to 6 attached.

1 is a diagram showing a pixel arrangement structure of an organic light emitting display device according to an embodiment of the present invention.

Referring to FIG. 1 , in an organic light emitting display device according to an embodiment of the present invention, red (R) and blue (B) sub-pixels are repeatedly disposed in a specific column, and green (G) sub-pixels are repeatedly disposed adjacent to a specific column. are placed as That is, in the present invention, the subpixels R, G, and B are arranged in a pen tile shape.

Red (R) and green (G) sub-pixels or blue (B) and green (G) sub-pixels are disposed in each of the pixel regions 100 . In the pixel region 100 , red (R) and green (G) sub-pixels are located diagonally from each other. In this case, it is possible to set a wide interval between the red (R) and green (G) sub-pixels, and thus has the advantage of being applicable to a high-resolution panel. Similarly, in the pixel area 100, blue (B) and green (G) sub-pixels are also located in the diagonal direction. Meanwhile, in the organic light emitting display device of the present invention, the sub-pixels R, G, B, and G located in two adjacent pixel regions 100 form one pixel and are driven.

Further, in the pixel arrangement structure of the present invention, the green (G) sub-pixel may be formed to have a smaller area than the red and blue sub-pixels (R and B) in consideration of luminous efficiency. Corresponding to the luminous efficiency, the blue (B) sub-pixel may be formed to have a larger area than the red (R) sub-pixel. Areas of the sub-pixels R, G, and B may be changed in various forms in consideration of luminous efficiency.

On the other hand, when the panel having the pixel array structure of the present invention is used in a portable device, data is changed and supplied according to the position change of the panel.

For example, as shown in FIG. 2A, when the panel is driven in a normal position, data is supplied in the first pattern (R, G, B, G, ...). And, when the panel is rotated 90 degrees to the right, data is supplied in the second pattern (G, B, G, R, ...) as shown in FIG. 2B. Also, when the panel is rotated 90 degrees to the left, data is supplied in a third pattern (B, G, R, G, ...) as shown in FIG. 2C. And, when the panel is inverted upside down, data is supplied in a fourth pattern (G, R, G, B, ...) as shown in FIG. 2D.

However, in the case of the present invention in which subpixels are arranged in a pen tile form, there is a problem in that a specific color is recognized at the edge.

In fact, when data is input in the first pattern, as shown in FIG. 3A, there is a problem in that pinkish color appears strongly on the upper and left sides and greenish color appears strongly on the lower and right sides. Similarly, as shown in FIGS. 3B to 3D , even when data is supplied in the second to fourth patterns, there is a problem in that pink and green colors appear strongly at the edges.

In the present invention, in order to overcome this problem, data supplied to the sub-pixels (R, G, and B) located on the four edges of the panel are dimmed. Here, the dimming process means lowering the gradation of data supplied to the 4-side edges in order to prevent strong observation of a specific color in the form of vertical and horizontal lines.

4 is a diagram showing an organic light emitting display device according to an embodiment of the present invention.

Referring to FIG. 4 , an organic light emitting display device according to an embodiment of the present invention includes a scan driver 10 for driving scan lines S1 to Sn and a data driver for driving data lines D1 to Dm. (20), the timing controller 50 for controlling the scan driver 10 and the data driver 20, and dimming the first data data1 supplied from the outside to generate second data data2. It is provided with a data processing unit 30 for

In the pixel unit 40 where the scan lines S1 to Sn and the data lines D1 to Dm intersect, the sub-pixels R, G, and B of the present invention are disposed in the structure shown in FIG. 1 .

The scan driver 10 supplies scan signals to the scan lines S1 to Sn. Here, the scan driver 10 may supply a scan signal in a forward or reverse direction corresponding to the position of the panel.

The data driver 20 generates a data signal using the second data data, and supplies the data signal to the data lines D1 to Dm so that the generated data signal is synchronized with the scan signal. Then, the data signal is supplied to the subpixels R, G, and B selected by the scan signal.

The timing controller 50 supplies a control signal (not shown) for controlling the scan driver 10 and the data driver 20 . Also, the timing controller 50 transfers the second data data2 supplied from the data processor 30 to the data driver 20 .

The data processing unit 30 detects data patterns (first to fourth patterns), and generates second data data2 by dimming the first data data1 in accordance with the detected pattern. In practice, the data processor 30 generates second data data2 by lowering the gray level of the first data data1 to be supplied to the outermost sub-pixels of the panel so that a specific color is not observed at the edge of the panel. A detailed operation process for this will be described later.

5 is a diagram showing an embodiment of a data processing unit according to an embodiment of the present invention.

Referring to FIG. 5 , a data processing unit 30 according to an embodiment of the present invention includes an SPR unit 32 and a dimming unit 34 .

The SPR (sub pixel rendering) unit 32 refers to an algorithm for improving readability of text. Such an SPR unit 32 may be associated with a pentile, and any one of currently known various types of algorithms may be applied. Additionally, in the present invention, the SPR unit 32 may be omitted.

The dimming unit 34 generates second data data2 by controlling the gradation of the first data data1 to be supplied to the sub-pixels located at the outermost edge of the panel in correspondence with the data pattern.

6 is a flowchart illustrating an operation process of a dimming unit according to an embodiment of the present invention.

Referring to FIG. 6 , the dimming unit 34 checks whether the first data data1 input thereto is data of the first line or the last line. Actually, as shown in FIGS. 3A to 3D , the first data (data1) supplied to the first line and the last line must be dimmed line by line to generate second data (data2).

Also, the dimming unit 34 generates second data data2 by dimming the first data data1 to be supplied to the first sub-pixel and the last sub-pixel located on the remaining lines except for the first line and the last line. That is, the dimming unit 34 generates second data data2 by lowering the gradation of the first data data1 to be supplied to the sub-pixels R, G, and B located at the edges of the panel, and generates second data data2. 2 data (data2) is supplied to the timing controller 50.

To explain the operation process in detail, first, the dimming unit 34 determines whether the first data (data1) input from the outside is data to be supplied to the first line (S200). In step S200, when it is determined that the first data (data1) is data to be supplied to the first line, a data pattern is examined (S202). Here, the data patterns are divided into a first pattern, a second pattern, a third pattern, and a fourth pattern as shown in FIGS. 3A to 3D.

When the data is determined to be the first pattern in step S202, it is determined whether the first data (data1) is supplied to the first pixel (S204).

If it is determined in step S204 that the first data (data1) is supplied to the first pixel, it is determined whether the data is the second pattern or the fourth pattern (S206). Here, since the data is determined to be the first pattern in step S202, the first data (data1) to be supplied to the red sub-pixel (R) and the blue sub-pixel (B) is dimmed to generate second data (data2) ( S214). (R, B dimming process located on the upper/left side of Fig. 3a)

In step S204, if the first data (data1) does not correspond to the first pixel, it is determined whether it is input to the last pixel (S210). If it is determined that the first data (data1) is supplied to the last pixel in step S210, it is determined whether the data is the first pattern or the third pattern (S212). Here, since the data is determined to be the first pattern in step S202, the first data data1 corresponding to the red sub-pixel R, the blue sub-pixel B, and the green sub-pixel G2 is dimmed (FIG. 3A). R, B, G dimming process located on the upper/right side of ). Here, labeling the green sub-pixel as G2 means that it is located in the same pixel area 100 as the blue sub-pixel (B). Also, for convenience of description, a green sub-pixel located in the same pixel area 100 as the red sub-pixel R will be denoted as G1. Meanwhile, in the case of pixels that are not determined to be the last pixel in step S210, that is, pixels positioned between the first pixel and the last pixel, dimming is performed corresponding to the red sub-pixel R and the blue sub-pixel B (S214). As described above, when the data of the first pattern is input, the first data (data1) corresponding to the sub-pixels located on the upper edge is dimmed through steps S202 to S214, so that the second data (data2) is obtained. is created

When the data is determined to be the second pattern in step S202, it is determined whether the first data (data1) is supplied to the first pixel (S204).

If it is determined in step S204 that the first data (data1) is supplied to the first pixel, it is determined whether the data is the second pattern or the fourth pattern (S206). Here, since the data is determined to be the second pattern in step S202, the first data (data1) to be supplied to the red sub-pixel (R), blue sub-pixel (B), and green sub-pixel (G2) included in the first pixel is The dimming process is performed to generate second data (data2) (S208) (R, B, G dimming process located on the upper/left side of FIG. 3B).

In step S204, if the first data (data1) does not correspond to the first pixel, it is determined whether it is input to the last pixel (S210). If it is determined that the first data (data1) is supplied to the last pixel in step S210, it is determined whether the data is the first pattern or the third pattern (S212). Here, since the data is determined to be the second pattern in step S202, the first data (data1) corresponding to the red sub-pixel (R) and the blue sub-pixel (B) is dimmed (S214) (upper/right side of FIG. 3B). R, B dimming located at ). Meanwhile, in the case of pixels that are not determined to be the last pixel in step S210, that is, pixels positioned between the first pixel and the last pixel, dimming is performed corresponding to the red sub-pixel R and the blue sub-pixel B (S214). As described above, when the data of the second pattern is input, the first data (data1) corresponding to the sub-pixels located on the upper edge is dimmed through steps S202 to S214 so that the second data (data2) is obtained. is created

When the data is determined to be the third pattern in step S202, it is determined whether the first data (data1) is supplied to the first pixel (S304).

In step S304, if it is determined that the first data (data1) is supplied to the first pixel, it is determined whether the data is a first pattern or a third pattern (S306). Here, since the data is determined to be the third pattern in step S202, the first data (data1) to be supplied to the green sub-pixels (G1, G2) and the blue sub-pixel (B) included in the first pixel is dimmed and 2 data (data2) is generated (S308) (B, G, G dimming process located on the upper/left side of FIG. 3C).

In step S304, if the first data (data1) does not correspond to the first pixel, it is determined whether it is input to the last pixel (S310). If it is determined that the first data (data1) is supplied to the last pixel in step S310, it is determined whether the data is the second pattern or the fourth pattern (S312). Here, since the data is determined to be the third pattern in step S202, the first data (data1) corresponding to the green sub-pixels (G1, G2) is dimmed (S314) (G located on the upper/right side of FIG. 3C). , G dimming). Meanwhile, in the case of pixels that are not determined to be the last pixel in step S310, that is, pixels positioned between the first pixel and the last pixel, dimming is performed corresponding to the green sub-pictures G1 and G2 (S314). As described above, when the data of the third pattern is input, the first data (data1) corresponding to the sub-pixels located on the upper edge is dimmed through steps S202, S304 to S314 to obtain second data ( data2) is created.

When the data is determined to be the fourth pattern in step S202, it is determined whether the first data (data1) is supplied to the first pixel (S304).

In step S304, if it is determined that the first data (data1) is supplied to the first pixel, it is determined whether the data is a first pattern or a third pattern (S306). Here, since the data is determined to be the fourth pattern in step S202, the first data data1 to be supplied to the green sub-pixels G1 and G2 included in the first pixel is dimmed to generate second data data2. (S314) (G, G dimming process located on the upper/left side of Fig. 3D).

In step S304, if the first data (data1) does not correspond to the first pixel, it is determined whether it is input to the last pixel (S310). In step S310, if it is determined that the first data (data1) is supplied to the last pixel, it is determined whether the data is the second pattern or the fourth pattern (S312). Here, since the data is determined to be the fourth pattern in step S202, the first data (data1) to be supplied to the green sub-pixels (G1 and G2) and the blue sub-pixel (B) included in the last pixel is dimmed, and the second pattern is obtained. Data (data2) is generated (S308) (G, G, B dimming process located on the upper/right side of Fig. 3D). Meanwhile, in the case of pixels that are not determined to be the last pixel in step S310, that is, pixels positioned between the first pixel and the last pixel, dimming is performed corresponding to the green sub-pictures G1 and G2 (S314). As described above, when the data of the fourth pattern is input, the first data (data1) corresponding to the sub-pixels located on the upper edge is dimmed through steps S202, S304 to S314 to obtain second data ( data2) is created.

On the other hand, if it is not determined as data to be supplied to the first line in step S200, it is determined whether the data is to be supplied to the last line (S300). In step S300, when it is determined that the first data (data1) is data to be supplied to the last line, a data pattern is examined (S302).

When the data is determined to be the first pattern in step S302, it is determined whether the first data (data1) is supplied to the first pixel or the last pixel (S304 and S310). In step S304, when it is determined that the first data data1 is supplied to the first pixel, it is determined whether the first data data1 is a first pattern or a third pattern (S306). Here, since the data is determined to be the first pattern in step S302, the first data (data1) to be supplied to the green sub-pixels (G1, G2) and the blue sub-pixel (B) included in the first pixel is dimmed and processed. 2 data (data2) is generated (S308) (B, G, G dimming process located on the lower/left side of FIG. 3A).

In step S310, when it is determined that the first data data1 is supplied to the last pixel, it is determined whether the first data data1 is the second pattern or the fourth pattern (S312). Here, since the data is determined to be the first pattern in step S302, the first data data1 to be supplied to the green sub-pixels G1 and G2 included in the last pixel is dimmed to generate second data data2. (S314) (G, G dimming processing located on the lower/right side of Fig. 3A). Meanwhile, in the case of pixels that are not determined to be the last pixel in step S310, that is, pixels positioned between the first pixel and the last pixel, dimming is performed corresponding to the green subpixels G1 and G2 (S314). As described above, when the data of the first pattern is input, the first data (data1) corresponding to the sub-pixels located at the lower edge is dimmed through steps S302 to S314 to generate the second data (data2). is created

When the data is determined to be the second pattern in step S302, it is determined whether the first data (data1) is supplied to the first pixel or the last pixel (S304 and S310). In step S304, when it is determined that the first data data1 is supplied to the first pixel, it is determined whether the first data data1 is a first pattern or a third pattern (S306). Here, since the data is determined to be the second pattern in step S302, the first data data1 to be supplied to the green sub-pixels G1 and G2 included in the first pixel is dimmed to generate second data data2. (S314) (G, G dimming processing located on the lower/left side of FIG. 3B).

In step S310, when it is determined that the first data data1 is supplied to the last pixel, it is determined whether the first data data1 is the second pattern or the fourth pattern (S312). Here, since the data is determined to be the second pattern in step S302, the first data (data1) to be supplied to the green sub-pixels (G1 and G2) and the blue sub-pixel (B) included in the last pixel is dimmed to obtain the second pattern. Data (data2) is generated (S308) (G, G, B dimming process located on the lower/right side of Fig. 3B). Meanwhile, in the case of pixels that are not determined to be the last pixel in step S310, that is, pixels positioned between the first pixel and the last pixel, dimming is performed corresponding to the green subpixels G1 and G2 (S314). As described above, when the data of the second pattern is input, the first data (data1) corresponding to the sub-pixels located at the lower edge is dimmed through steps S302 to S314 so that the second data (data2) is obtained. is created

When the data is determined to be the third pattern in step S302, it is determined whether the first data (data1) is supplied to the first pixel or the last pixel (S204 and S210). In step S204, when it is determined that the first data data1 is supplied to the first pixel, it is determined whether the first data data1 is the second pattern or the fourth pattern (S206). Here, since the data is determined to be the third pattern in step S302, the first data (data1) to be supplied to the red sub-pixel (R) and blue sub-pixel (B) included in the first pixel is dimmed to obtain the second data ( data2) is generated (S214) (R, B dimming process located on the lower/left side of FIG. 3C).

In step S210, when it is determined that the first data data1 is supplied to the last pixel, it is determined whether the first data data1 is the first pattern or the third pattern (S212). Here, since the data is determined as the third pattern in step S302, the first data data1 to be supplied to the red sub-pixel R, the blue sub-pixel B, and the green sub-pixel G2 included in the last pixel is dimmed. processing to generate second data (data2) (S208) (R, B, G dimming process located on the lower/right side of FIG. 3C). Meanwhile, in the case of pixels that are not determined to be the last pixel in step S210, that is, pixels positioned between the first pixel and the last pixel, dimming is performed corresponding to the red sub-pixel R and the blue sub-pixel B (S214). As described above, when the data of the third pattern is input, the first data (data1) corresponding to the sub-pixels located at the lower edge is dimmed through steps S302, S204 to S214 to obtain second data ( data2) is created.

If the data is determined to be the fourth pattern in step S302, it is determined whether the first data (data1) is supplied to the first pixel or the last pixel (S204 and S210). In step S204, when it is determined that the first data data1 is supplied to the first pixel, it is determined whether the first data data1 is the second pattern or the fourth pattern (S206). Here, since the data is determined as the fourth pattern in step S302, the first data (data1) to be supplied to the red sub-pixel (R), blue sub-pixel (B), and green sub-pixel (G2) included in the first pixel is The dimming process is performed to generate second data (data2) (S208) (G, B, R dimming process located on the lower/left side of FIG. 3D).

In step S210, when it is determined that the first data data1 is supplied to the last pixel, it is determined whether the first data data1 is the first pattern or the third pattern (S212). Here, since the data is determined to be the fourth pattern in step S302, the first data (data1) to be supplied to the red sub-pixel (R) and blue sub-pixel (B) included in the last pixel is dimmed to obtain the second data (data2). ) is generated (S214) (R, B dimming process located on the lower/right side of FIG. 3D). Meanwhile, in the case of pixels that are not determined to be the last pixel in step S210, that is, pixels positioned between the first pixel and the last pixel, dimming is performed corresponding to the red sub-pixel R and the blue sub-pixel B (S214). As described above, when the data of the fourth pattern is input, the first data (data1) corresponding to the sub-pixels located at the lower edge is dimmed through steps S302, S204 to S214 to obtain second data ( data2) is created.

On the other hand, if it is not determined as data to be supplied to the last line in step S300, that is, if it is not located in the first line and the last line, the pattern of the data is inspected (S400).

When the first pattern or the second pattern is determined in step S400, it is determined whether the first data data1 is supplied to the first sub-pixel or the last sub-pixel (S402 and S411).

In step S402, if it is determined as the first data (data1) corresponding to the first sub-pixel, it is determined whether it is a first pattern (S404). If it is determined as the first pattern in step S404, it is determined whether the first data (data1) is supplied as an odd-numbered line (S406). In step S406, when it is determined that the first data (data1) is supplied to the odd-numbered line, it is determined to be the first data (data1) supplied to the red subpixel (R) and is dimmed. (S408) In step S406, the first data (data1) When it is determined that data1) is not supplied to the odd-numbered line, it is determined to be the first data (data1) supplied to the blue sub-pixel (B) and is dimmed (S410).

If it is not determined as the first pattern in step S404, it is determined whether the first data (data1) is supplied as an odd-numbered line (S414). When it is determined that the first data (data1) is supplied to the odd-numbered line in step S414, it is determined that the first data (data1) supplied to the green sub-pixel G2 is dimmed (S416). In step S414, when it is determined that the first data data1 is not supplied to the odd-numbered line, it is determined that the first data data1 supplied to the green sub-pixel G1 is dimmed (S418).

In step S411, if it is determined to be the first data (data1) corresponding to the last sub-pixel, it is determined whether it is the first pattern (S412). If it is determined as the first pattern in step S412, it is determined whether the first data (data1) is supplied as an odd-numbered line (S414). When it is determined that the first data (data1) is supplied to the odd-numbered line in step S414, it is determined that the first data (data1) supplied to the green sub-pixel G2 is dimmed (S416). In step S414, when it is determined that the first data data1 is not supplied to the odd-numbered line, it is determined that the first data data1 supplied to the green sub-pixel G1 is dimmed (S418).

If it is not determined as the first pattern in step S412, it is determined whether the first data (data1) is supplied as an odd-numbered line (S406). In step S406, when it is determined that the first data (data1) is supplied to the odd-numbered line, it is determined that the first data (data1) supplied to the red sub-pixel (R) is dimmed (S408). In step S406, when it is determined that the first data (data1) is not supplied to the odd-numbered line, it is determined that the first data (data1) supplied to the blue sub-pixel (B) is dimmed (S410).

In fact, in the case of the present invention, when data is input in the first pattern or the second pattern, the subpixels located at the edges of the lines other than the first line and the last line, that is, the first subpixel and the last subpixel S400 Dimming is performed using steps to S418.

When the third pattern or the fourth pattern is determined in step S400, it is determined whether the first data (data1) is supplied to the first sub-pixel or the last sub-pixel (S421 and S425).

In step S421, if it is determined to be the first data (data1) corresponding to the first sub-pixel, it is determined whether it is the third pattern (S420). If it is determined as the third pattern in step S420, it is determined whether the first data (data1) is supplied as an odd-numbered line (S422). In step S422, when it is determined that the first data (data1) is supplied to the odd-numbered line, it is determined that the first data (data1) supplied to the blue sub-pixel (B) is dimmed (S410). In step S422, when it is determined that the first data (data1) is not supplied to the odd-numbered line, it is determined that the first data (data1) supplied to the red sub-pixel (R) is dimmed (S408).

If it is not determined as the third pattern in step S420, it is determined whether the first data (data1) is supplied as an odd-numbered line (S424). In step S424, when it is determined that the first data data1 is supplied to the odd-numbered line, it is determined that the first data data1 supplied to the green sub-pixel G1 is dimmed (S418). In step S424, when it is determined that the first data data1 is not supplied to the odd-numbered line, it is determined that the first data data1 supplied to the green sub-pixel G2 is dimmed (S416).

In step S425, if it is determined to be the first data (data1) corresponding to the last sub-pixel, it is determined whether it is the third pattern (S426). If it is determined as the third pattern in step S426, it is determined whether the first data (data1) is supplied as an odd-numbered line (S424). In step S424, when it is determined that the first data data1 is supplied to the odd-numbered line, it is determined that the first data data1 supplied to the green sub-pixel G1 is dimmed (S418). In step S424, when it is determined that the first data data1 is not supplied to the odd-numbered line, it is determined that the first data data1 supplied to the green sub-pixel G2 is dimmed (S416).

If it is not determined as the third pattern in step S426, it is determined whether the first data (data1) is supplied as an odd-numbered line (S422). In step S422, when it is determined that the first data (data1) is supplied to the odd-numbered line, it is determined that the first data (data1) supplied to the blue sub-pixel (B) is dimmed (S410). In step S422, when it is determined that the first data (data1) is not supplied to the odd-numbered line, it is determined that the first data (data1) supplied to the red sub-pixel (R) is dimmed (S408).

In fact, in the case of the present invention, when data is input in the third pattern or the fourth pattern, the subpixels located at the edges of the lines other than the first line and the last line, that is, the first subpixel and the last subpixel are described above. Dimming process by repeating one process.

As described above, the dimming unit 34 of the present invention is driven as shown in FIG. 6 and dims the sub-pixels located at the edge of the panel corresponding to the first, second, third and fourth patterns of data. do. Here, the dimming value corresponding to each of the sub-pixels R, B, G1, and G2 is experimentally determined in consideration of the resolution, inch, and luminous efficiency of the panel. For example, in a specific panel, the second data data2 may be generated by performing a dimming process so that the luminance of the red sub-pixel R and the blue sub-pixel B is reduced to 1/2. Further, second data data2 may be generated by performing dimming processing so that the luminance of the green sub-pixel G1 is reduced to 3/5 and the luminance of the green sub-pixel G2 is reduced to 4/7.

That is, the dimming unit 34 of the present invention can sense the red sub-pixel R, the blue sub-pixel B, and the green sub-pixels G1 and G2 located at the edge of the panel while being driven as shown in FIG. In response to this, there is an advantage that various dimming processes are possible.

Although the technical idea of the present invention has been specifically described according to the above preferred embodiments, it should be noted that the above embodiments are for explanation and not for limitation. In addition, those skilled in the art will understand that various modifications are possible within the scope of the technical spirit of the present invention.

10: scan driving unit 20: data driving unit
30: data processing unit 32: SPR unit
34: dimming unit 40: pixel unit
50: timing controller 100: pixel area

Claims (31)

a display panel having a pixel arrangement structure including a plurality of sub-pixels for displaying an image; and
A processor receiving first data and generating second data using the first data;
The plurality of sub-pixels,
first sub-pixels aligned with each other along a first direction and a second direction different from the first direction; and
including second sub-pixels and third sub-pixels aligned with each other along the first direction and the second direction and alternately arranged with each other along the first direction;
In the first direction and the second direction, only the first sub-pixels are mutually aligned;
In the first direction and the second direction, only the second sub-pixels and the third sub-pixels are mutually aligned;
The first sub-pixels and the second sub-pixels are alternately arranged along a third direction different from the first and second directions, and each of the first sub-pixels is one of the second sub-pixels. Facing the two along the third direction,
The first sub-pixels and the third sub-pixels are alternately arranged along the third direction. The display panel of claim 1 , further comprising a first edge and a second edge facing the first edge in the first direction,
wherein the first edge and the second edge extend along the second direction. The method of claim 2 , wherein among the plurality of sub-pixels, sub-pixels positioned at one of the first edge and the second edge include a group of the first sub-pixels arranged along the second direction;
Among the plurality of sub-pixels, sub-pixels positioned on the other one of the first edge and the second edge include a group of the second sub-pixels and the third sub-pixels arranged along the second direction. , a portable device. The portable device of claim 2 , wherein sub-pixels closest to the first edge among the plurality of sub-pixels include only the first sub-pixels or only include only the second sub-pixels and the third sub-pixels. device. The method of claim 2 , wherein the second data is generated by performing a sub-pixel rendering process on the first data,
The plurality of sub-pixels are arranged in a Pentile pixel arrangement,
The sub-pixel rendering is optimized for the pentile pixel arrangement. The method of claim 2, wherein the second data is generated by performing a dimming process on the first data,
The dimming process includes a process of reducing gradation values of data supplied corresponding to at least one of the edges of the display panel among the first data. The portable device of claim 2 , wherein the processing unit controls brightness of sub-pixels closest to the first edge among the plurality of sub-pixels. The portable device of claim 2 , wherein the processing unit controls brightness of sub-pixels closest to the second edge among the plurality of sub-pixels. The portable device of claim 2 , wherein the second data is different from the first data and includes rendering data and grayscale value adjustment data of the first data. According to claim 2,
a data driver receiving the second data and providing the second data to the first sub-pixels, the second sub-pixels, and the third sub-pixels;
The data driver receives the second data from the processing unit. The portable device of claim 2 , wherein sizes of the first sub-pixels are smaller than sizes of the second sub-pixels and sizes of the third sub-pixels. The method of claim 2 , wherein the plurality of sub-pixels include first sub-pixel sets and second sub-pixel sets that are alternately arranged along the second direction,
The first sub-pixel sets include the first sub-pixels;
wherein the second sub-pixel sets include the second sub-pixels and the third sub-pixels. The method of claim 2 , wherein at least two of the first sub-pixels are alternately arranged with the second sub-pixels along the third direction or a fourth direction crossing the third direction,
At least two of the first sub-pixels are alternately arranged with the third sub-pixels along the third direction or the fourth direction. The method of claim 2, wherein the plurality of sub-pixels,
first sub-pixel groups each including a 1-1st sub-pixel among the first sub-pixels and one adjacent to the 1-1-th sub-pixel among the second sub-pixels; and
It is composed of second sub-pixel groups, each of which includes a first-second sub-pixel among the first sub-pixels and one adjacent to the first-second sub-pixel among the third sub-pixels;
The first sub-pixel groups and the second sub-pixel groups are alternately arranged along the first direction and the second direction. 15. The method of claim 14, wherein the first sub-pixels of the first sub-pixel groups extend in a fourth direction crossing the third direction,
and wherein the first sub-pixels of the second sub-pixel groups extend in the third direction. 3 . The method of claim 2 , wherein two adjacent centers of the second sub-pixels and two adjacent centers of the third sub-pixels are located at respective vertices of a virtual quadrangle,
One of the first sub-pixels is located within the virtual rectangle. 3 . The method of claim 2 , wherein four center portions closest to each other among the first sub-pixels are located at vertices of an imaginary rectangle,
and wherein only one of the second sub-pixels is located within the virtual square, or only one of the third sub-pixels is located within the virtual square. The method of claim 1 , wherein the plurality of sub-pixels include first sub-pixel rows and second sub-pixel rows that are alternately arranged along the third direction;
Each of the first sub-pixel rows includes the first sub-pixels and the second sub-pixels;
Each of the second sub-pixel rows includes the first sub-pixels and the third sub-pixels;
Each of the first sub-pixel rows generates light of a first mixed color when all of the sub-pixels arranged along the fourth direction intersecting the third direction on the first sub-pixel rows are simultaneously driven;
Each of the second sub-pixel rows generates light of a second mixed color different from the first mixed color when all of the sub-pixels arranged along the fourth direction on the second sub-pixel rows are simultaneously driven. portable device. The method of claim 18 , wherein sub-pixels on the first sub-pixel rows have two different sizes, and sub-pixels on the second sub-pixel rows have two different sizes;
wherein the first sub-pixels on the first sub-pixel rows are oriented differently than the first sub-pixels on the second sub-pixel rows. 19. The method of claim 18, wherein the first mixed color is cyan, and the second mixed color is yellow,
wherein the first sub-pixels, the second sub-pixels, and the third sub-pixels include self-light emitting elements. 21. The method of claim 20, wherein the first sub-pixels include a first organic light emitting diode emitting light of a first color,
The second sub-pixels include second organic light emitting diodes emitting light of a second color;
The third sub-pixels include third organic light emitting diodes emitting light of a third color;
wherein the first color is green, the second color is blue, and the third color is red. The method of claim 1 , wherein a first side of any one of the first sub-pixels is parallel to an opposite side of an adjacent one of the second sub-pixels,
and a second side of any one of the first sub-pixels is parallel to an opposite side of an adjacent one of the third sub-pixels. The method of claim 1 , wherein the first set of sub-pixels are aligned with the set of second sub-pixels along the third direction,
and another set of the first sub-pixels is arranged aligned with the third set of sub-pixels along the third direction. The method of claim 1 , wherein the plurality of sub-pixels have an RGBG structure in which the number of the first sub-pixels is twice the number of the second sub-pixels and the number of the third sub-pixels is equal to the number of the second sub-pixels. Arranged as a portable device. The method of claim 1 , wherein at least one of the first sub-pixels or at least one of the third sub-pixels is positioned between any two of the second sub-pixels,
At least one of the first sub-pixels or at least one of the second sub-pixels is positioned between any two of the third sub-pixels. The method of claim 1 , wherein each of the plurality of sub-pixels includes two first sub-pixels among the first sub-pixels, one second sub-pixel among the second sub-pixels, and one of the third sub-pixels. Consists of pixel units including one third sub-pixel of
the pixel units are arranged along the first direction within pixel unit rows arranged along the second direction;
Two pixel units adjacent to each other in the first direction among the pixel units are disposed directly adjacent to each other. 27. The portable device of claim 26, wherein the two first sub-pixels of the first sub-pixels extend in different directions. 27. The portable device of claim 26, wherein the plurality of sub-pixels include organic light emitting elements. 29. The method of claim 28, wherein the first sub-pixels include a first organic light emitting diode emitting light of a first color,
The second sub-pixels include second organic light emitting diodes emitting light of a second color;
The third sub-pixels include third organic light emitting diodes emitting light of a third color. The method of claim 29, wherein the first sub-pixels have smaller areas than the second sub-pixels and the third sub-pixels,
The second sub-pixels have a larger area than the third sub-pixels. 30. The handheld device of claim 29, wherein the first color is green, the second color is blue, and the third color is red.