KR20240077072A - Display apparatus - Google Patents

Abstract

This specification relates to a display device that can improve text readability while using 6-subpixels. The display device according to one embodiment includes first to sixth sub-pixels, each of which emits three-color light. The position of the subpixel driven in the first to sixth subpixels may change depending on the position direction of the adjacent pixel having the maximum luminance among the adjacent pixels that are adjacent to the target pixel in the plurality of pixels.

Description

Display device {DISPLAY APPARATUS}

This specification relates to a display device that can improve text readability while using 6-subpixels.

Display devices applied to various electronic devices display images using a plurality of pixels. The basic pixel of the display device may have a 3-subpixel structure consisting of red (R)/green (G)/blue (B) subpixels.

Display devices that mainly display dynamic images with high-speed operation, such as gaming monitors, can use a 6-subpixel structure in which each R/G/B subpixel is divided into upper and lower sides to improve smooth video quality and viewing angles. .

However, a display device with a 6-subpixel structure uses only the upper 3-subpixels or the lower 3-subpixels among the 6-subpixels when displaying luminance below a certain level.

Because of this, when expressing text, there is a problem that the sharpness and density of the text are reduced due to the unused upper or lower 3-subpixels among the 6-subpixels, thereby reducing readability.

The content of the background technology described above is technical information that the inventor of this specification possessed to derive examples of this specification or acquired in the process of deriving examples of this specification, and must be disclosed to the general public before filing an application for this specification. It cannot be said to be a well-known technology.

This specification provides a display device that can improve text readability while using 6-subpixels.

The problems to be solved in this specification are not limited to the problems mentioned above, and other problems not mentioned can be clearly understood by those skilled in the art in the technical field to which the technical idea of this specification belongs from the contents below. It could be.

A display device according to some embodiments includes a display panel on which a plurality of pixels are arranged, each of the plurality of pixels comprising: first to third subpixels each emitting light of different colors and arranged in a first direction; and fourth to sixth subpixels each emitting light of different colors, arranged in a first direction, and arranged adjacent to the first to third subpixels in a second direction, and the first to third subpixels. Combination of subpixels, combination of fourth to sixth subpixels, combination of first, fourth and fifth subpixels, combination of second, third and sixth subpixels, combination of first to sixth subpixels Each can provide white light.

In a display device according to some embodiments, each of the plurality of pixels includes a combination of the first, second, fourth, and fifth subpixels among the first to sixth subpixels, and the second, third, fifth, and sixth subpixels. Additional white light can be provided through each combination of subpixels.

A display device according to some embodiments includes a display panel on which a plurality of pixels are disposed, each of the plurality of pixels having first to sixth subpixels that emit three-color light, and a target pixel and a target pixel in the plurality of pixels. The position of the subpixel driven in the first to sixth subpixels of the target pixel may change depending on the position of the neighboring pixel with the maximum luminance among adjacent neighboring pixels.

In a display device according to some embodiments, the first and sixth subpixels are red subpixels that emit red light, the second and fourth subpixels are green subpixels that emit green light, and the third and fifth subpixels are green subpixels that emit green light. The subpixel may be a blue subpixel that emits blue light.

In the display device according to some embodiments, when the luminance of the target pixel is below the reference luminance, the first to eighth adjacent pixels of the target pixel are selected according to the location of the adjacent pixel displaying the maximum luminance among the first to eighth adjacent pixels surrounding the target pixel. Among the 6 subpixels, the position of the 3 subpixels that are driven first may change.

In a display device according to some embodiments, when the luminance of the target pixel is less than the reference luminance, the remaining 3 subpixels excluding the 3 subpixels that are driven first in the target pixel may display black data.

In a display device according to some embodiments, when the luminance of the target pixel is higher than the reference luminance, first to sixth subpixels of the target pixel may be driven.

Specific details according to various examples of this specification other than the means of solving the above-mentioned problems are included in the description and drawings below.

The basic pixel of the display device according to some embodiments has a 6-subpixel structure, and among the 6-subpixels, a first combination of 3 subpixels on the upper side, a second combination of 3 subpixels on the lower side, and 4 on the left. -The third combination of subpixels or the fourth combination of 3 subpixels, the fifth combination of 4 subpixels on the right or the sixth combination of 3 subpixels, and the seventh combination of 6 subpixels are all 3-color By having a pixel arrangement structure capable of implementing white color through combinations, various luminances and various colors can be displayed using at least one of the first to seventh combinations.

A display device according to some embodiments displays text sharpness ( Sharpness and density can be improved to improve readability, and power consumption can be reduced to achieve a low-power effect.

Figure 1 is a block diagram showing the configuration of a display device according to an embodiment.
Figure 2 is a diagram showing a pixel structure according to one embodiment.
Figure 3 is a diagram showing a pixel structure according to one embodiment.
Figure 4 is an equivalent circuit diagram showing the configuration of each subpixel according to an embodiment.
Figure 5 is an equivalent circuit diagram showing the configuration of each subpixel according to an embodiment.
FIG. 6 is a diagram illustrating a pixel group that determines a subpixel rendering direction of a display device according to an embodiment.
FIG. 7 is a diagram illustrating a subpixel rendering method in a first case in a display device according to an embodiment.
FIG. 8 is a diagram illustrating a subpixel rendering method in a second case in a display device according to an embodiment.
FIG. 9 is a diagram illustrating a subpixel rendering method in a third case in a display device according to an embodiment.
FIG. 10 is a diagram illustrating a subpixel rendering method in a fourth case in a display device according to an embodiment.
Figure 11 is a flowchart showing a subpixel rendering method of a display device according to an embodiment.
Figure 12 is a diagram showing a comparison of text display results of display devices according to related technologies and an embodiment.
Figure 13 is a diagram showing text display results of a display device according to related technology.
Figure 14 is a diagram showing a text display effect of a display device according to an embodiment.
Figure 15 is a block diagram showing an inspection device for a display device according to an embodiment.
FIG. 16 is a diagram illustrating output images of test pixels for a first test image in a display device according to an embodiment.
FIG. 17 is a diagram illustrating output images of test pixels for a second test image in a display device according to an embodiment.

The advantages and features of the present specification and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present specification is not limited to the embodiments disclosed below and will be implemented in various different forms, but the present embodiments only serve to ensure that the disclosure of the present specification is complete, and are common knowledge in the technical field to which the present specification pertains. It is provided to fully inform those who have the scope of the invention, and this specification is only defined by the scope of the claims.

The shape, size, ratio, angle, number, etc. disclosed in the drawings for explaining the embodiments of the present specification are illustrative, and the present specification is not limited to the matters shown. Like reference numerals refer to like elements throughout the specification. Additionally, in describing the present specification, if it is determined that a detailed description of related known technologies may unnecessarily obscure the gist of the present specification, the detailed description will be omitted. When “includes,” “has,” “consists of,” etc. mentioned in the specification are used, other parts may be added unless “only” is used. In cases where a component is expressed in the singular, the plural is included unless specifically stated otherwise.

When analyzing a component, the error range is interpreted to include the error range even if there is no separate explicit description of the error range.

In the case of a description of a positional relationship, for example, if the positional relationship of two parts is described as “on top,” “at the top,” “at the bottom,” “next to,” etc., for example, “right away.” Alternatively, there may be one or more other parts between the two parts, unless "directly" is used.

In the case of a description of a temporal relationship, if a temporal relationship is described as “after,” “sequentially,” “next,” “before,” etc., and it is not continuous unless “immediately” or “directly” is used. It may also be included.

Although first, second, etc. are used to describe various components, these components are not limited by these terms. These terms are merely used to distinguish one component from another. Accordingly, the first component mentioned below may be the second component within the technical idea of the present specification.

In describing the components of this specification, terms such as first, second, A, B, a, and b may be used. These terms are only used to distinguish the component from other components, and the nature, sequence, order, or number of the components are not limited by the term. When a component is described as being “connected,” “coupled,” or “connected” to another component, that component may be connected or connected to that other component directly, but indirectly, unless specifically stated otherwise. It should be understood that other components may be “interposed” between each component that is connected or capable of being connected.

“At least one” should be understood to include any combination of one or more of the associated components. For example, “at least one of the first, second, and third components” means not only the first, second, or third component, but also two of the first, second, and third components. It can be said to include a combination of all or more components.

Each feature of the various embodiments of the present specification can be combined or combined with each other, partially or entirely, and various technological interconnections and operations are possible, and each embodiment may be implemented independently of each other or together in a related relationship. It may be possible.

Hereinafter, embodiments of the present specification will be examined through the attached drawings and examples. The scale of the components shown in the drawings is different from the actual scale for convenience of explanation, and is therefore not limited to the scale shown in the drawings.

FIG. 1 is a block diagram showing the configuration of a display device according to an embodiment, and FIGS. 2 and 3 are diagrams showing a subpixel combination structure of basic pixels according to an embodiment.

The display device 1000 according to one embodiment may be a liquid crystal display device or an electroluminescent display device using a self-luminescent device. The electroluminescent display device may be an Organic Light Emitting Diode (OLED) display device, a Quantum-dot Light Emitting Diode display device, or an Inorganic Light Emitting Diode display device. . A micro light emitting diode display device may be applied to the display device 1000 according to one embodiment.

Referring to FIG. 1, the display device 1000 includes a display panel 100, a gate driver 300, a data driver 400, a timing controller 600, a gamma voltage generator 700, and a power management circuit 800. It may include etc. The gate driver 300 and data driver 400 may be collectively referred to as the panel driver 200 that drives the display panel 100. The gate driver 300, data driver 400, timing controller 600, and gamma voltage generator 700 may be collectively referred to as the display driver 500.

The display panel 100 displays an image through an active area (AA) in which a plurality of pixels (PX) are arranged in a matrix form. The active area (AA) can be expressed as a display area, pixel matrix, or pixel array. The display panel 100 may be a panel with a built-in or attached touch sensor screen that overlaps the pixel array of the active area (AA).

In the display panel 100, the basic pixel PX has a 6-subpixel structure including first to sixth subpixels SP1 to SP6 that emit three different colors of light. The primary pixel (PX) can provide white light by mixing three-color light emitted from 3 subpixels out of 6 subpixels. The primary pixel (PX) can provide white light by mixing three-color light emitted from 4 out of 6 subpixels. The primary pixel (PX) can provide white light by mixing 3-color light emitted by 6-subpixels.

The primary pixel (PX) has two subpixels (SP1, SP6) that emit light of a first color, two subpixels (SP2, SP4) that emit light of a second color, and light of a third color. It may include two subpixels (SP3, SP5). The basic pixel (PX) is adjacent to the first to third subpixels (SP1, SP2, SP3) arranged in the first direction and the first to third subpixels (SP1, SP2, SP3) in the second direction, respectively. It may include fourth to sixth subpixels SP4, SP5, and SP6 arranged in the first direction. Here, the second direction different from the first direction may be a direction perpendicular to the first direction.

Referring to FIG. 2, the basic pixel (PX) of the 6-subpixel structure includes a first combination 52 of 3-subpixels (SP1, SP2, SP3) arranged on the upper side, and 3-subpixels arranged on the lower side. The second combination 54 of (SP4, SP5, SP6), the third combination 62 of 3-subpixels (SP1, SP2, SP4) arranged on the left, or the 4-subpixels (SP1, SP2) arranged on the left , SP4, SP5), the fourth combination 64, the fifth combination 72 of 3-subpixels (SP2, SP3, SP6) arranged on the right, or the 4-subpixels (SP2, SP3, SP5) arranged on the right. , SP6), the sixth combination 74, and the seventh combination 56 of 6-subpixels (SP1 to SP6) are used to provide first to third color light to display various luminances and various colors. can do.

When the basic pixel (PX) displays below the standard luminance, any one of the first to sixth combinations (52, 54, 62, 64, 72, and 74) of the 6-subpixels (SP1 to SP6) can be driven. there is. For example, the reference luminance may be medium luminance. When the basic pixel (PX) displays luminance higher than the reference luminance, the seventh combination 56 of 6-subpixels (SP1 to SP6) may be driven. Among the 6-subpixels (SP1 to SP6), the first to sixth combinations (52, 54, 62, 64, 72, and 74) may be variably selected depending on the location of the pixel with the maximum luminance among adjacent pixels. A detailed explanation of this will be provided later.

Referring to FIG. 3, each pixel (PX1) includes first and sixth subpixels (SP1, SP6) that emit red (hereinafter referred to as R) light, and second and fourth subpixels that emit green (hereinafter referred to as G) light. (SP2, SP4), and third and fifth subpixels (SP3, SP5) that emit blue (hereinafter referred to as B) light. The first to third subpixels (SP1, SP2, SP3) arranged in the first direction emit R, G, and B lights, respectively, and the first to third subpixels (SP1, SP2, SP3) arranged in the second direction The fourth to sixth subpixels SP4, SP5, and SP6 arranged in the first direction and adjacent to each other may emit G, B, and R lights, respectively.

When each pixel (PX1) displays a standard brightness (e.g., medium brightness) or less, four combinations (62, Any one of 72, 52, 54) can be driven. The first to fourth cases may be determined according to the location of each pixel PX1 and the pixel with the maximum luminance among adjacent pixels. A detailed explanation of this will be provided later. When each pixel (PX1) displays a luminance higher than the reference luminance (for example, medium luminance), a combination 56 of 6-subpixels (SP1 to SP6) corresponding to the fifth case may be driven.

Each of the subpixels SP1 to SP6 may include a light-emitting element and a pixel circuit that independently drives the light-emitting element. The light emitting device may be an organic light emitting diode, quantum dot light emitting diode, or inorganic light emitting diode. The pixel circuit may include TFTs of various configurations, including a driving TFT that drives the light emitting element and a switching TFT that transmits a data signal to the driving TFT, and a storage capacitor that stores the driving voltage of the driving TFT. The pixel circuit is electrically connected to signal lines including gate lines, data lines, and power lines disposed on the display panel 100.

The power management circuit 800 can use an input voltage supplied from the outside to generate and output various driving voltages necessary for the operation of all components of the display device, that is, the display panel 100 and the display driver 500.

The gate driver 300 is controlled according to a plurality of gate control signals supplied from the timing controller 600 and can individually drive the gate lines of the display panel 100. The gate driver 300 may supply a scan signal of the gate-on voltage to the corresponding gate line during the driving period of each gate line, and may supply a gate-off voltage to the corresponding gate line during the non-driving period of each gate line. The gate driver 300 may be built into the bezel area of the display panel 100 in the form of a gate in panel (GIP) formed together with the TFTs in the display area.

Meanwhile, the gate driver 300 built into the display panel 100 may receive a plurality of gate control signals from the timing controller 600 via a level shifter (not shown). A level shifter (not shown) may receive timing control signals from the timing controller 600 and perform level shifting or logic processing to generate a plurality of gate control signals and supply them to the gate driver 200.

The gamma voltage generator 700 generates a plurality of reference gamma voltages having different gamma voltage levels and supplies them to the data driver 400. The gamma voltage generator 700 may generate a plurality of reference gamma voltages corresponding to the gamma characteristics of the display device under the control of the timing controller 600 and supply them to the data driver 400. The gamma voltage generator 700 may adjust the reference gamma voltage level according to the gamma data supplied from the timing controller 600 and output it to the data driver 400. The gamma voltage generator 700 can adjust the high-potential power supply voltage, which is the maximum gamma voltage, according to the peak luminance control from the timing controller 600, and adjusts a plurality of standard reference gamma voltages according to the high-potential power supply voltage to operate the data driver. It can be output as (400).

The data driver 400 is controlled according to the data control signal supplied from the timing controller 600, converts the digital data supplied from the timing controller 600 into an analog data signal through a digital-to-analog converter, and converts the digital data supplied from the timing controller 600 into an analog data signal. Each data signal can be supplied to each data line. At this time, the data driver 400 may convert digital data into an analog data signal using grayscale voltages divided by a plurality of reference gamma voltages supplied from the gamma voltage generator 700.

Additionally, the data driver 400 may supply a reference voltage to the reference line of the panel 100 under the control of the timing controller 600. The data driver 400 can supply reference voltages for display and sensing according to the control of the timing controller 600.

The data driver 400 can sense a signal reflecting the driving characteristics of each subpixel (SP1 to SP6) through a reference line using a sensing unit under the control of the timing controller 600 using a voltage sensing method or a current sensing method. .

The timing controller 600 may receive source image data and timing control signals from the host system. The host system may be any one of a computer, a TV system, a set-top box, a portable terminal system such as a tablet or mobile phone, or a system inside a car. Timing control signals may include a dot clock, data enable signal, vertical synchronization signal, horizontal synchronization signal, etc.

The timing controller 600 may control the gate driver 300 and the data driver 400 using timing control signals supplied from the host system and timing setting information stored internally. The timing controller 600 may generate a plurality of gate control signals that control the driving timing of the gate driver 300 and supply them to the gate driver 300. The timing controller 600 may generate a plurality of data control signals that control the driving timing of the data driver 400 and supply them to the data driver 400.

The timing controller 600 can perform various image processing, including image quality correction, deterioration correction, and luminance correction to reduce power consumption, on source image data supplied from the host system, and sends the image-processed data to a data driver. It can be supplied as (400).

The timing controller 600 receives 3-subpixel data corresponding to each pixel, generates 6-subpixel data, and stores the generated 6-subpixel data in an array of first to sixth subpixels (SP1 to SP6). It can be rendered and output accordingly.

The timing controller 600 operates when the 3-subpixel data corresponding to each pixel has a luminance higher than the reference luminance (eg, medium luminance). By dividing each of the 3-subpixel data R, G, and B data into two, 6-subpixel data R11, R12, G11, G12, B11, and B12 data can be generated. The timing controller 600 renders the generated 6-subpixel data (R11, R12, G11, G12, B11, B12) according to the arrangement of the first to sixth subpixels (SP1 to SP6) to R11, G11, and B11. , G12, B12, and R12 data can be output.

When the R, G, and B data corresponding to each pixel has a luminance lower than the reference luminance (e.g., medium luminance), the timing controller 600 performs 6-sub luminance according to the position of the pixel with the maximum luminance among adjacent pixels. Select a combination of the 3-subpixels that are driven among the pixels, render and output R, G, and B data according to the arrangement of the selected 3-subpixels, and render and output black data so that the remaining 3-subpixels are turned off. You can.

In other words, the timing controller 600 may calculate the luminance of each pixel and each of the adjacent pixels and determine one of the first to fourth cases indicating the location of the pixel with the maximum luminance among the adjacent pixels. The timing controller 600 renders and outputs R, G, and B data to a combination of the 3 subpixels driven among the 6 subpixels (SP1 to SP6) according to the case determined among the first to fourth cases, and outputs the remaining 3 subpixels. -Black data can be rendered and output so that the subpixels are turned off.

Meanwhile, before outputting the image-processed data to the data driver 400, the timing controller 600 can further correct the image by applying a compensation value for the characteristic deviation of each subpixel (SP1 to SP6) stored in the memory. there is. In the sensing mode, the timing controller 600 senses the characteristics of each subpixel (SP1 to SP6) of the display panel 100 through the data driver 400 and uses the sensing result to calculate the compensation value of each area stored in memory. can be updated.

As such, the display device according to one embodiment displays text by driving any one of the first to seventh combinations of 6-subpixels according to the luminance of each pixel and the direction in which the pixel with the maximum luminance among adjacent pixels is located. Sharpness and density are improved, improving readability and reducing power consumption.

Figure 4 is an equivalent circuit diagram showing the configuration of each subpixel according to an embodiment.

Referring to FIG. 4, each subpixel (10A) has a first power line (PW1) that supplies a high-potential driving voltage (EVDD) (first power voltage) and a low-potential driving voltage (EVSS) (second power voltage). ) and the first and second switching TFTs (ST1, ST2) and the driving TFT (DT) to independently drive the light emitting element (EL) connected between the second power line (PW2) that supplies ) and a storage capacitor (Cst).

The light emitting element EL may include an anode connected to the source node N2 of the driving TFT DT, a cathode connected to the second power line PW2, and an organic light emitting layer between the anode and the cathode. The anode is independent for each subpixel, but the cathode may be a common electrode shared by all subpixels. When a driving current is supplied from the driving TFT (DT) to the light emitting element (EL), electrons from the cathode are injected into the organic light emitting layer, and holes from the anode are injected into the organic light emitting layer, resulting in fluorescence or emission due to recombination of electrons and holes in the organic light emitting layer. By emitting light from a phosphorescent material, light with a luminance proportional to the current value of the driving current can be generated.

The first switching TFT (ST1) is driven by the scan gate signal (SCn) supplied from the gate driver 300 to the first gate line (Gn1), and the data supplied to the data line (Dm) from the data driver 400 The voltage (Vdata) can be supplied to the gate node (N1) of the driving TFT (DT).

The second switching TFT (ST2) is driven by the sense gate signal (SEn) supplied from the gate driver 300 to the second gate line (Gn2), and the reference signal supplied from the data driver 400 to the reference line (Rm). The voltage (Vref) can be supplied to the source node (N2) of the driving TFT (DT). Meanwhile, in the sensing mode, the second switching TFT (ST2) may provide a current reflecting the characteristics of the driving TFT (DT) or the characteristics of the light emitting element (EL) to the reference line (Rm).

The first and second switching TFTs (ST1, ST2) may be controlled by different gate lines (Gn1, Gn2), as shown in FIG. 3, or may be controlled by the same gate line.

A storage capacitor (Cst) connected between the gate node (N1) and the source node (N2) of the driving TFT (DT) is connected to the gate node (N1) and the source node (N1) through the first and second switching TFTs (ST1, ST2). The difference voltage between the data voltage (Vdata) and the reference voltage (Vref) respectively supplied to N2) is charged with the driving voltage (Vgs) of the driving TFT (DT), and the first and second switching TFTs (ST1, ST2) are turned off. The charged driving voltage (Vgs) is held during the light emission period.

The driving TFT (DT) can control the light emission intensity of the light emitting device (EL) by controlling the current (Ids) flowing to the light emitting device (EL) according to the driving voltage (Vgs) charged in the storage capacitor (Cst).

In FIG. 4, the gate lines (Gn1, Gn2) are driven by the gate driver 300, receive data voltage (Vdata) and reference voltage (Vref) from the data driver 400, and receive voltage from the power management circuit 800. The above driving voltage (EVDD) and low potential driving voltage (EVSS) can be supplied.

Figure 5 is an equivalent circuit diagram showing the configuration of each subpixel according to an embodiment.

Referring to FIG. 5, the pixel circuit of each subpixel 10B includes a light emitting element (EL), a driving TFT (DT) that supplies current to the light emitting element (EL), a plurality of TFTs (T1 to T6), and a storage capacitor ( Cst) may be included. The TFTs of each pixel circuit may be TFTs using any one of polysilicon semiconductor, amorphous silicon semiconductor, and oxide semiconductor.

For example, the driving TFT (DT) and the TFTs (T1 to T6) may be composed of a P-type channel polysilicon TFT using polysilicon, which has high mobility.

Meanwhile, the driving TFT (DT) and TFTs (T1~T3, T5-T6) are composed of P-type channel polysilicon TFT, and the compensation TFT (T4) connecting the driving TFT (DT) with a diode structure is made of polysilicon. It can be composed of an N-type channel oxide TFT using an oxide semiconductor with a smaller leakage current. During low-speed operation where the screen update rate is relatively slow, the fourth switching TFT (T4) can prevent flicker by blocking leakage current.

The light emitting element (EL) includes an anode connected to the drain electrode of the driving TFT (DT) through the light emission control TFT (T5), and a cathode connected to the second power electrode 110 that supplies the second power voltage (VSSEL). , an organic light-emitting layer may be provided between the anode and the cathode. The light emitting element (EL) may generate light with a brightness proportional to the current value of the driving current supplied from the driving TFT (DT).

The compensation TFT (T4) is controlled by the first gate line 104 and has a second node (N3) connected to the gate electrode of the driving TFT (DT), and a third node connected to the drain electrode of the driving TFT (DT). (N3) can be connected. The compensation TFT (T4) is turned on by the gate-on voltage of the first gate signal (SC1[n]) supplied through the first gate line 104, and the gate electrode and drain electrode of the driving TFT (DT) are connected to each other. By connecting, the driving TFT (DT) can be connected in a diode structure. The first gate line 104 can be shared by two row lines, the n-1th and nth (n is an integer of 2 or more) row lines, and as a result, it is built into the bezel area of the display panel 100. The size of the gate driver 300 and the bezel size can be reduced.

The switching TFT (T1) is controlled by the second gate line 105 and can connect the data line 102 and the first node (N1) connected to the source electrode of the driving TFT (DT). The switching TFT (T1) is turned on by the gate-on voltage of the second gate signal (SC2[n]) supplied through the second gate line 105, and the data voltage ( Vdata) can be supplied to the source electrode of the driving TFT (DT).

The operation control TFT (T2) is controlled by the emission control line 111 and can connect the first power line (VDDEL) and the first node (N1) connected to the source electrode of the driving TFT (DT). The operation control TFT (T2) is turned on by the gate-on voltage of the emission control signal (EM[n]) supplied through the emission control line 111, and the first voltage supplied through the first power line 103 is turned on. The power supply voltage (EVDD) can be supplied to the source electrode of the driving TFT (DT).

The light emission control TFT (T5) is controlled by the light emission control line 111 and has a third node (N3) connected to the drain electrode of the driving TFT (DT) and a fourth node connected to the anode electrode of the light emitting element (EL). (N4) can be connected. The emission control TFT (T5) is turned on by the gate-on voltage of the emission control signal (EM[n]) supplied through the emission control line 111, and the drain electrode of the driving TFT (DT) and the light emitting element (EL) are turned on. ) can be connected to the anode electrode.

The first initialization TFT (T3) is controlled by the third gate line 106 and can connect the third node (N3) connected to the drain electrode of the driving TFT (DT) with the first initialization line 108. . The first initialization TFT (T3) is turned on by the gate-on voltage of the second gate signal (SC3[n]) supplied through the third gate line 106, and is connected to the drain electrode of the driving TFT (DT). The first initialization voltage Vini supplied through the first initialization line 108 may be supplied to the third node N3.

The second initialization TFT (T6) is controlled by the fourth gate line 107 and can connect the second initialization line 109 and the fourth node (N4) connected to the anode of the light emitting element (EL). The second initialization TFT (T6) is turned on by the gate-on voltage of the fourth gate signal (SC3[n+1]) supplied through the fourth gate line 107, and is connected to the anode electrode of the light emitting device (LED). A second initialization voltage (VAR, anode reset voltage) supplied through the second initialization line 109 may be supplied to the fourth node N4 connected to . The fourth gate line 107 may share a third gate line that supplies the third gate signal SC3[n+1] at the n+1th (n is a positive integer) low line.

The storage capacitor (Cst) may be connected between the first power line 103 and the second node (N2) connected to the gate electrode of the driving TFT (DT). The storage capacitor (Cst) connects the first power voltage (VDDEL) supplied through the first power line 103, the switching TFT (T2), the driving TFT (DT), and the compensation TFT (T1) from the data line 102. The difference voltage with the data voltage (Vdata) supplied to the second node (N2) can be charged. While the driving TFT (DT) is connected to the diode structure through the compensation TFT (T4), the storage capacitor (Cst) can sample and store the threshold voltage (Vth) of the driving TFT (DT). A data voltage (Vdata+Vth) in which the threshold voltage (Vth) is compensated may be provided to the gate electrode. Accordingly, the storage capacitor Cst can charge the difference voltage between the first power voltage VDDEL and the data voltage Vdata for which the threshold voltage Vth of the driving TFT DT is compensated as the target voltage, The charged target voltage can be provided as a driving voltage (Vgs) between the gate and source electrodes of the driving TFT (DT). Accordingly, the difference in characteristics of the driving TFT (DT) between subpixels can be compensated.

The driving TFT (DT) can control the light emission intensity of the light emitting device (EL) by controlling the current (Ids) flowing to the light emitting device (EL) according to the driving voltage charged in the storage capacitor (Cst).

In FIG. 5, the gate lines 104, 105, 106, and 107 may be driven by the gate driver 300, and the emission control line 111 may be driven along with the gate driver 300 in the bezel area of the display panel 100. It can be driven by a light emission control driver (not shown) disposed in . The data voltage (Vdata) is supplied from the data driver 400, and the first power voltage (VDDEL), the second power voltage (VSSEL), the first initialization voltage (Vini), and the second initialization voltage from the power management circuit 800. (VAR) can be supplied.

Figure 6 is a diagram showing a pixel group that determines the subpixel rendering direction of a display device according to an embodiment, and Figures 7 to 10 show a method of rendering a target pixel for each case in a display device according to an embodiment. These are drawings.

Referring to FIG. 6, the pixel group PG includes a target pixel P(i, j) (i, j is an integer of 2 or more) and the first to eighth adjacent pixels P surrounding the target pixel P(i, j). (i-1, j-1), P(i, j-1), P(i+1, j-1), P(i-1, j), P(i+1, j), P( It may contain 9 pixels including i-1, j+1), P(i, j+1), and P(i+1, j+1).

In the pixel group PG, the target pixel P(i, j) and the first, fourth, and seventh pixels P( When at least one of i-1, j-1), P(i-1, j), and P(i-1, j+1) is the first case with maximum luminance, the target pixel P(i, j ), the combination 62 (FIG. 2-3) of the first, fourth, and fifth subpixels (SP1, SP4, and SP5) arranged on the left is driven first and can display up to the reference luminance. Brightness higher than the reference brightness can be displayed by driving all of the first to sixth subpixels (SP1 to SP6).

In the pixel group PG, the target pixel P(i, j) and the third, sixth, and eighth pixels P( When at least one of i+1, j-1), P(i+1, j), and P(i+1, j+1) is the second case with maximum luminance, the target pixel P(i, j ), the combination 72 (FIG. 2-3) of the second, third, and sixth subpixels (SP2, SP3, and SP6) arranged on the right is driven first and can display up to the reference luminance. Brightness higher than the reference brightness can be displayed by driving all of the first to sixth subpixels (SP1 to SP6).

In the pixel group PG, when the target pixel P(i, j) and the second pixel P(i, j-1) adjacent in the upper direction 802 are the third case with maximum luminance, the target pixel P( In i, j), the combination 52 (FIG. 2-3) of the first to third subpixels SP1, SP2, and SP3 disposed on the upper side is driven first and can display up to the reference luminance. Brightness higher than the reference brightness can be displayed by driving all of the first to sixth subpixels (SP1 to SP6).

In the pixel group PG, the seventh pixel P(i, j+1) adjacent to the target pixel P(i, j) in the lower direction 808 among the pixel group PG is the fourth case having the maximum brightness. At this time, the combination 54 (FIG. 2-3) of the fourth to sixth subpixels (SP4, SP5, SP6) disposed below the target pixel P(i, j) may be driven first. Brightness higher than the reference brightness can be displayed by driving all of the first to sixth subpixels (SP1 to SP6).

Referring to FIG. 7, the pixel group PG is the first, fourth, and seventh pixels adjacent to the target pixel P(i, j) in the upper left direction 801, the left direction 804, and the lower left direction 807. This may be a first case where at least one of the pixels P(i-1, j-1), P(i-1, j), and P(i-1, j+1) has maximum luminance. In the first case, when the target pixel P(i, j) displays luminance (L2 to L5) below the reference luminance (50%), the first, fourth, and fifth sub among the target pixels P(i, j) Pixels SP1, SP4, and SP5 may be driven first.

For example, among target pixels P(i, j), the first, fourth, and fifth subpixels (SP1, SP4, SP5) receive R2/G2/B2 data and display L2 luminance, and R3/G3/ By receiving B3 data, R4/G4/B4 data, and R5/G5/B5 data, L3, L4, and L5 luminance can be displayed respectively. At this time, the remaining second, third, and sixth subpixels (SP2, SP3, SP6) among the target pixels P(i, j) may be turned off by receiving black data (R1, G1, B1).

Referring to FIG. 8, the pixel group PG includes the third, sixth, and eighth pixels adjacent to the target pixel P(i, j) in the upper right direction 803, the right direction 806, and the lower right direction 809. This may be a second case where at least one of the pixels P(i+1, j-1), P(i+1, j), and P(i+1, j+1) has maximum luminance. In the second case, when the target pixel P(i, j) displays luminance (L2 to L5) below the reference luminance (50%), the second, third, and sixth sub Pixels (SP2, SP3, SP6) may be driven first.

For example, among target pixels P(i, j), the second, third, and sixth subpixels (SP2, SP3, SP6) are R2/G2/B2 data, R3/G3/B3 data, and R4/G4/B4. Data, R5/G5/B5 data can be supplied and L2, L3, L4, and L5 luminance can be displayed respectively. At this time, the remaining first, fourth, and fifth subpixels (SP1, SP4, SP5) among the target pixels P(i, j) may be turned off by receiving black data (R1, G1, B1).

Referring to FIG. 9, the pixel group PG may be a third case in which the target pixel P(i, j) and the second pixel P(i, j-1) adjacent to the target pixel in the upper direction 802 have the maximum luminance. . In the third case, when the target pixel P(i, j) displays luminance (L2 to L5) below the reference luminance (50%), the first to third subpixels (SP1) in the target pixel P(i, j) , SP2, SP3) may be driven first.

For example, among the target pixels P(i, j), the first to third subpixels (SP1, SP2, SP3) include R2/G2/B2 data, R3/G3/B3 data, R4/G4/B4 data, and R5. /G5/B5 data can be supplied and L2, L3, L4, and L5 luminance can be displayed respectively. At this time, the remaining fourth to sixth subpixels (SP4, SP5, SP6) among the target pixels P(i, j) may be turned off by receiving the black data (R1, G1, B1).

Referring to FIG. 10, the pixel group PG may be a fourth case in which the target pixel P(i, j) and the seventh pixel P(i, j+1) adjacent to the lower direction 808 have the maximum brightness. . In the fourth case, when the target pixel P(i, j) displays luminance (L2 to L5) below the reference luminance (50%), the fourth to sixth subpixels (SP4) in the target pixel P(i, j) , SP5, SP6) may be driven first.

For example, among the target pixels P(i, j), the fourth to sixth subpixels (SP4, SP5, SP6) include R2/G2/B2 data, R3/G3/B3 data, R4/G4/B4 data, and R5. /G5/B5 data can be supplied and L2, L3, L4, and L5 luminance can be displayed respectively. At this time, the remaining first to third subpixels (SP1, SP2, SP3) among the target pixels P(i, j) may be turned off by receiving the black data (R1, G1, B1).

7 to 10, when the target pixel P(i, j) displays the minimum luminance L1, the first to sixth subpixels SP1 to SP6 contain black data (R1, G1, B1). It can be supplied and turned off. When the target pixel P(i, j) displays luminance (L6 to Ln) higher than the reference luminance (50%), all of the first to sixth subpixels (SP1 to SP6) are driven to provide R6/G6/B6 data. , Rn/Gn/Bn data can be supplied and L6 and Ln luminance can be displayed respectively.

In the fifth case excluding the first to fourth cases shown in FIGS. 7 to 10, all of the first to sixth subpixels (SP1 to SP6) are driven in the target pixel P(i, j) to display the desired luminance. can do.

Figure 11 is a flowchart showing a subpixel rendering method of a display device according to an embodiment.

The subpixel rendering method shown in FIG. 11 may be performed by the timing controller 600 shown in FIG. 1.

Referring to FIGS. 1 and 11 , the timing controller 600 receives R, G, and B data, which is 3-subpixel data of a target pixel P(i, j) for performing subpixel rendering (S402).

The timing controller 600 controls the first to eighth adjacent pixels P(i-1, j-1), P(i, j-1), and P(i+1, j) adjacent to the target pixel P(i, j). -1), P(i-1, j), P(i+1, j), P(i-1, j+1), P(i, j+1), P(i+1, j+ 1) Each luminance can be calculated (S404).

The timing controller 600 controls the target pixel P(i, j) and the first, fourth, and seventh pixels P(i- If it is determined that at least one of 1, j-1), P(i-1, j), and P(i-1, j+1) is the first case with maximum luminance (S406, YES), target pixel P Rendering R, G, and B data to the first, fourth, and fifth subpixels (SP1, SP4, and SP5) among (i, j) to produce the first, fourth, and fifth subpixels (SP1, SP4, and SP5) can be driven first (S408).

The timing controller 600 controls the third, sixth, and eighth pixels P(i+) adjacent to the target pixel P(i, j) in the upper right direction 803, right direction 806, and lower right direction 809. If it is determined that at least one of 1, j-1), P(i+1, j), and P(i+1, j+1) is the second case with maximum luminance (S410, YES), target pixel P Rendering R, G, and B data to the second, third, and sixth subpixels (SP2, SP3, and SP6) among (i, j) can be driven first (S412).

If the timing controller 600 determines that the target pixel P(i, j) and the second pixel P(i, j-1) adjacent to the upper direction 802 are the third case having the maximum luminance (S414, YES), Rendering R, G, B data to the first to third subpixels (SP1, SP2, SP3) among target pixels P(i, j) to drive the first to third subpixels (SP1, SP2, SP3) first You can do it (S416).

If the timing controller 600 determines that the seventh pixel P(i, j+1) adjacent to the target pixel P(i, j) in the lower direction 808 is the fourth case having the maximum luminance (S418, YES), Rendering R, G, B data to the 4th to 6th subpixels (SP4, SP5, SP6) among target pixels P(i, j) to drive the 4th to 6th subpixels (SP4, SP5, SP6) first You can do it (S420).

If the timing controller 600 determines that it is the fifth case rather than the first to fourth cases (S418, NO), the timing controller 600 renders R, G, and B data to the first to sixth subpixels (SP1 to SP6) All of the through sixth subpixels (SP1 to SP6) can be driven simultaneously (S422). The timing controller 600 can simultaneously drive all of the first to sixth subpixels SP1 to SP6 when the 3-subpixel data of the target pixel P(i, j) is higher than the reference luminance (middle luminance).

FIG. 12 is a diagram comparing the text display effect of a display device according to an embodiment with the text display result of related technology.

Referring to FIG. 12(a), when the text “B” is displayed in a display device with a 6-subpixel structure according to the related technology, each pixel with a 6-subpixel structure located within the text area 204 is driven. It can be seen that the sharpness and density of the text are reduced because the positions of the 3-subpixels 206 that are not displayed are the same at the top or bottom, thereby reducing text readability.

Referring to FIG. 12(b), when displaying text “B” in a display device with a 6-subpixel structure according to an embodiment, in each of the pixels of the 6-subpixel structure located within the text area 304 It can be seen that the sharpness and density of the text are improved as the position of the driven 3-subpixel 306 varies depending on the position of the pixel with the maximum luminance among adjacent pixels, and as a result, text readability is improved. there is.

FIG. 13 is a diagram showing a text display result of a display device according to a related technology, and FIG. 14 is a diagram showing a text display effect of a display device according to an embodiment.

Referring to FIG. 13, when displaying text on a display device with a 6-subpixel structure according to the related technology, pixels with a 6-subpixel structure located within the text areas 606 and 616 in the enlarged portions 602 and 612 It can be seen that the positions of the 3-subpixels 604 and 614 that are not driven in each are the same at the top or bottom, thereby reducing the sharpness and density of the text, thereby reducing text readability.

Referring to FIG. 14, when displaying text on a display device with a 6-subpixel structure according to an embodiment, the 6-subpixel structure located within the text areas 706 and 716 in the enlarged portions 702 and 712. It can be seen that the sharpness and density of the text are improved as the position of the 3-subpixels 704 and 714 driven in each pixel varies depending on the position of the pixel with the maximum luminance among adjacent pixels, and as a result, the text It can be seen that readability is improved.

FIG. 15 is a diagram illustrating an inspection system of a display device according to an embodiment, and FIGS. 16 and 17 are diagrams illustrating output images of test pixels for a test pattern image in a display device according to an embodiment.

Referring to FIG. 15, the inspection system for the display device includes a display device 1000, an electronic device 2000, and a measurement device 3000.

The display device 1000 may receive test pattern (PTN1, PTN2) images from the electronic device 2000 and display them on the panel 100 (see FIG. 1).

The display device 1000 may sequentially display test pattern (PTN1, PTN2) images supplied from the electronic device 2000 by luminance and color. For example, the test image may include the test pattern (PTN1, PTN2) images shown in FIGS. 16 and 17.

The measurement device 3000 captures the output image of the test pattern (PTN1, PTN2) displayed on the panel 100 of the display device 1000, measures the output result of the test pixel P(i, j), and transmits the measurement result electronically. It can be supplied to the device 2000. Each time the display device 1000 displays a test pattern (PTN1, PTN2) image on the panel 100, the measurement device 3000 measures the output result of the test pixel P(i, j) on the panel 100. Measurement results may be supplied to the electronic device 2000. The measurement device 3000 may be a microscope camera.

The electronic device 2000 may calculate luminance, chromaticity, etc. for each subpixel of the test pixel P(i, j) using the luminance measurement result of the test pixel P(i, j) supplied from the measurement device 3000. .

Referring to FIG. 16, the display device 1000 according to one embodiment displays a second pixel P(i, j-1) adjacent to the test pixel P(i, j) in the upper direction among a pixel group including 9 pixels. This maximum luminance, white luminance, is displayed, and the remaining pixels P(i-1, j-1), P(i+1, j-1), P(i-1, j), P(i+1, j), P(i-1, j+1), P(i, j+1), P(i+1, j+1) represent the black luminance, and the luminance of the test pixel P(i, j) A first test pattern (PTN1) in which (L1 to Ln) changes step by step may be supplied from the electronic device 2000 and displayed.

The measurement device 3000 measures the output result of the test pixel P(i, j) displayed on the display device 1000 whenever the luminance (L1 to Ln) of the test pixel P(i, j) changes step by step. It can be output to the electronic device 2000.

In the electronic device 2000, the test pixel P(i, j) displays luminance (L2 to L5) below the reference luminance (50%) in the output image of the display device 1000 that displays the first test pattern (PTN1). It is possible to detect that among the test pixels P(i, j), the first to third subpixels (SP1, SP2, SP3) are driven first and the remaining subpixels (SP4, SP5, SP6) are turned off. Accordingly, it is possible to determine whether to apply the 6-subpixel structure and subpixel rendering method of the display device 1000 according to an embodiment.

Referring to FIG. 17, the display device 1000 according to an embodiment displays a fourth pixel P(i-1, j) adjacent to the test pixel P(i, j) in the left direction among a pixel group including 9 pixels. This maximum luminance, white luminance, is displayed, and the remaining pixels P(i-1, j-1), P(i, j-1), P(i+1, j-1), P(i+1, j), P(i-1, j+1), P(i, j+1), P(i+1, j+1) represent the black luminance, and the luminance of the test pixel P(i, j) A second test pattern (PTN2) in which (L1 to Ln) changes step by step may be supplied from the electronic device 2000 and displayed.

The measurement device 3000 measures the output luminance of the test pixel P(i, j) displayed on the display device 1000 whenever the luminance (L1 to Ln) of the test pixel P(i, j) changes step by step. It can be output to the electronic device 2000.

In the electronic device 2000, the test pixel P(i, j) displays luminance (L2 to L5) below the reference luminance (50%) in the output image of the display device 1000 that displays the second test pattern (PTN2). It is possible to detect that among test pixels P(i, j), the first, fourth, and fifth subpixels (SP1, SP4, SP5) are driven first and the remaining subpixels (SP2, SP3, SP6) are turned off. there is. Accordingly, it is possible to determine whether to apply the 6-subpixel structure and subpixel rendering method of the display device 1000 according to an embodiment.

As described above, the basic pixel of the display device according to some embodiments has a 6-subpixel structure, and among the 6-subpixels, a first combination of the upper 3 subpixels and a second combination of the lower 3 subpixels Combination, third combination of 4 subpixels on the left or fourth combination of 3 subpixels, fifth combination of 4 subpixels on the right or sixth combination of 3 subpixels, seventh combination of 6 subpixels By having a pixel arrangement structure capable of implementing white color in all three-color combinations, various luminances and various colors can be displayed using at least one of the first to seventh combinations.

A display device according to some embodiments displays text sharpness ( Sharpness and density can be improved to improve readability, and power consumption can be reduced to achieve a low-power effect.

The display device according to the present specification can be applied to all electronic devices. For example, the display device according to the present specification includes a mobile device, a video phone, a smart watch, a watch phone, a wearable device, a foldable device, and a rollable device ( rollable device, bendable device, flexible device, curved device, electronic notebook, e-book, portable multimedia player (PMP), personal digital assistant (PDA), MP3 player, Mobile medical devices, desktop PCs, laptop PCs, netbook computers, workstations, navigation, vehicle navigation, vehicle displays, televisions, wallpaper displays, It can be applied to shiny devices, gaming devices, laptops, monitors, cameras, camcorders, and home appliances.

The features, structures, effects, etc. described in the various examples of the present specification described above are included in at least one example of the present specification and are not necessarily limited to only one example. Furthermore, the features, structures, effects, etc. illustrated in at least one example of the present specification can be combined or modified and implemented in other examples by those skilled in the art in the field to which the technical idea of the present specification pertains. Therefore, contents related to such combinations and modifications should be construed as being included in the technical scope or scope of rights of this specification.

The present specification described above is not limited to the above-described embodiments and the accompanying drawings, and it is common in the technical field to which this specification pertains that various substitutions, modifications, and changes are possible without departing from the technical spirit of the present specification. It will be clear to those who have the knowledge of. Therefore, the scope of the present specification is indicated by the claims described below, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present specification.

100: display panel 200: panel driver
300: gate driver 400: data driver
500: Display driver 600: Timing controller
700: Gamma voltage generator 800: Power management circuit
1000: Display device

Claims (26)

It includes a display panel on which a plurality of pixels are arranged,
Each of the plurality of pixels is,
first to third subpixels each emitting light of different colors and arranged in a first direction; and
and fourth to sixth subpixels each emitting light of different colors, arranged in the first direction, and adjacent to the first to third subpixels in a second direction,
A combination of the first to third subpixels, a combination of the fourth to sixth subpixels, a combination of the first, fourth, and fifth subpixels, a combination of the second, third, and sixth subpixels, A display device that provides white light through each combination of the first to sixth subpixels. In claim 1,
A display device further providing the white light through a combination of the first, second, fourth, and fifth subpixels and a combination of the second, third, fifth, and sixth subpixels. In claim 1,
The first and sixth subpixels are red subpixels that emit red light,
The second and fourth subpixels are green subpixels that emit green light,
The third and fifth subpixels are blue subpixels that emit blue light. In claim 1,
The plurality of pixels include a target pixel and a pixel group consisting of first to eighth adjacent pixels surrounding the target pixel,
When the luminance of the target pixel is less than the reference luminance, 3- which are driven first among the first to sixth subpixels of the target pixel according to the position of the adjacent pixel displaying the maximum brightness among the luminances of the first to eighth adjacent pixels A display device in which the position of subpixels changes. In claim 4,
When the luminance of the target pixel is less than the reference luminance, the remaining 3 subpixels of the target pixel except for the 3 subpixels driven first display black data. In claim 4,
A display device in which first to sixth subpixels of the target pixel are driven when the luminance of the target pixel is higher than the reference luminance. In claim 4,
Among the first to eighth adjacent pixels, when at least one of the first, fourth, and sixth adjacent pixels adjacent to the target pixel in the upper left, left, and lower left directions, respectively, displays maximum luminance, the target pixel A display device in which a combination of the first, fourth, and fifth subpixels is driven first. In claim 4,
Among the first to eighth adjacent pixels, when at least one of the third, fifth, and eighth adjacent pixels adjacent to the target pixel in the upper-right, right, and lower-right directions respectively displays maximum luminance, the target pixel A display device in which a combination of the second, third, and sixth subpixels is driven first. In claim 4,
Among the first to eighth adjacent pixels, when a second adjacent pixel adjacent to the target pixel in the upward direction displays maximum luminance, a combination of the first, second, and third subpixels in the target pixel is driven first. display device. In claim 4,
Among the first to eighth adjacent pixels, when a seventh adjacent pixel adjacent to the target pixel in the downward direction displays maximum luminance, a combination of the fourth, fifth, and sixth subpixels in the target pixel is driven first. display device. It includes a display panel on which a plurality of pixels are arranged,
Each of the plurality of pixels includes first to sixth subpixels that emit three-color light,
A display device in which the position of a subpixel driven in first to sixth subpixels of the target pixel changes depending on the position of an adjacent pixel with maximum luminance among adjacent pixels adjacent to the target pixel in the plurality of pixels. In claim 11,
In each of the plurality of pixels,
The first to third subpixels are arranged in a first direction,
The fourth to sixth subpixels are arranged in the first direction and adjacent to the first to third subpixels in a second direction,
A combination of the first to third subpixels, a combination of the fourth to sixth subpixels, a combination of the first, fourth, and fifth subpixels, a combination of the second, third, and sixth subpixels, A display device that provides white light through each combination of the first to sixth subpixels. In claim 12,
A display device further providing the white light through a combination of the first, second, fourth, and fifth subpixels and a combination of the second, third, fifth, and sixth subpixels. In claim 12,
The first and sixth subpixels are red subpixels that emit red light,
The second and fourth subpixels are green subpixels that emit green light,
The third and fifth subpixels are blue subpixels that emit blue light. In claim 12,
When the luminance of the target pixel is less than the reference luminance, priority is driven among the first to sixth subpixels of the target pixel according to the position of the adjacent pixel displaying the maximum brightness among the first to eighth adjacent pixels surrounding the target pixel. A display device in which the position of 3-subpixels changes. In claim 15,
When the luminance of the target pixel is less than the reference luminance, the remaining 3 subpixels of the target pixel except for the 3 subpixels driven first display black data. In claim 15,
A display device in which first to sixth subpixels of the target pixel are driven when the luminance of the target pixel is higher than the reference luminance. In claim 15,
Among the first to eighth adjacent pixels, when at least one of the first, fourth, and sixth adjacent pixels adjacent to the target pixel in the upper left, left, and lower left directions, respectively, displays maximum luminance, the target pixel A display device in which a combination of the first, fourth, and fifth subpixels is driven first. In claim 15,
Among the first to eighth adjacent pixels, when at least one of the third, fifth, and eighth adjacent pixels adjacent to the target pixel in the upper-right, right, and lower-right directions respectively displays maximum luminance, the target pixel A display device in which a combination of the second, third, and sixth subpixels is driven first. In claim 15,
Among the first to eighth adjacent pixels, when a second adjacent pixel adjacent to the target pixel in the upward direction displays maximum luminance, a combination of the first, second, and third subpixels in the target pixel is driven first. display device. In claim 15,
Among the first to eighth adjacent pixels, when a seventh adjacent pixel adjacent to the target pixel in the downward direction displays maximum luminance, a combination of the fourth, fifth, and sixth subpixels in the target pixel is driven first. display device. In claim 15,
Among the first to eighth adjacent pixels, at least one of the first, fourth, and sixth adjacent pixels adjacent to the target pixel in the upper left, left, and lower left directions, respectively, displays white luminance, and the remaining adjacent pixels display black luminance. When displaying luminance,
A combination of the first, fourth, and fifth subpixels in the target pixel is driven to display luminance below the medium luminance, and the second, third, and sixth subpixels in the target pixel display black luminance. Display device. In claim 15,
Among the first to eighth adjacent pixels, at least one of the third, fifth, and eighth adjacent pixels adjacent to the target pixel in the upper right, right, and lower right directions respectively displays white luminance, and the remaining adjacent pixels display black luminance. When displaying luminance and the target pixel displays below medium luminance,
A display device in which the second, third, and sixth subpixels are driven in the target pixel to display luminance below the intermediate luminance, and the first, fourth, and fifth subpixels in the target pixel display black luminance. . In claim 15,
Among the first to eighth adjacent pixels, when a second adjacent pixel adjacent to the target pixel in the upward direction displays white luminance, the remaining adjacent pixels display black luminance, and the target pixel displays medium luminance or lower,
A display in which the first, second, and third subpixels in the target pixel are driven to display luminance below the intermediate luminance, and the fourth, fifth, and sixth subpixels in the target pixel display black luminance. Device. In claim 15,
Among the first to eighth adjacent pixels, when the seventh adjacent pixel adjacent to the target pixel in the downward direction displays white luminance, the remaining adjacent pixels display black luminance, and the target pixel displays medium luminance or lower,
A display in which the fourth, fifth, and sixth subpixels in the target pixel are driven to display luminance below the intermediate luminance, and the first, second, and third subpixels in the target pixel display black luminance. Device. In claim 15,
When the target pixel displays a luminance higher than the intermediate luminance, all first to sixth subpixels of the target pixel are driven to display a luminance higher than the intermediate luminance.

Images