WO2024205151A1 - 표시장치 - Google Patents
표시장치 Download PDFInfo
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- WO2024205151A1 WO2024205151A1 PCT/KR2024/003658 KR2024003658W WO2024205151A1 WO 2024205151 A1 WO2024205151 A1 WO 2024205151A1 KR 2024003658 W KR2024003658 W KR 2024003658W WO 2024205151 A1 WO2024205151 A1 WO 2024205151A1
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- layer
- semiconductor pattern
- semiconductor
- electrode
- display device
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
- G09G3/3233—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3266—Details of drivers for scan electrodes
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/131—Interconnections, e.g. wiring lines or terminals
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
Definitions
- the present invention relates to a pixel and a display device including the pixel.
- display devices are utilized in various ways, there are various methods for designing the form of display devices, and the functions that can be grafted or linked to display devices are increasing.
- Embodiments of the present invention can provide a display device with improved display quality.
- these tasks are exemplary and the scope of the present invention is not limited thereby.
- a display device includes: a first thin-film transistor including a display area and a peripheral area, the first thin-film transistor being arranged in the peripheral area and including a silicon semiconductor layer; a second thin-film transistor being arranged in the display area and including an oxide semiconductor layer arranged on an upper layer of the silicon semiconductor layer; and a semiconductor pattern being arranged in the display area and being arranged in the same layer as the silicon semiconductor layer of the first thin-film transistor.
- the semiconductor pattern may include a silicon semiconductor.
- the semiconductor pattern may be configured in a floating state.
- the display device further includes a conductive layer overlapping the semiconductor pattern; and signal lines electrically connected to opposite ends of the semiconductor pattern that do not overlap the conductive layer; wherein the signal lines can be electrically connected to the conductive layer.
- the conductive layer may be disposed on the same layer as the gate electrode of the first thin film transistor.
- the oxide semiconductor layer of the second thin film transistor can overlap the semiconductor pattern.
- the display device further includes a plurality of conductive electrodes overlapping the semiconductor pattern; and signal lines electrically connected to portions between adjacent conductive electrodes of the semiconductor pattern among the plurality of conductive electrodes; wherein the signal lines can be electrically connected to the conductive electrodes.
- the challenge electrodes may be arranged on the same layer as the gate electrode of the first thin film transistor.
- the oxide semiconductor layer of the second thin film transistor can overlap the semiconductor pattern.
- the display device further includes an upper conductive layer overlapping the semiconductor pattern; a lower conductive layer overlapping the semiconductor pattern; and signal lines electrically connected to opposite ends of the semiconductor pattern that do not overlap the upper conductive layer; wherein the signal lines can be electrically connected to the upper conductive layer and the lower conductive layer.
- the upper conductive layer may be disposed on the same layer as the gate electrode of the first thin film transistor.
- the oxide semiconductor layer of the second thin film transistor can overlap the semiconductor pattern.
- the semiconductor pattern includes a plurality of semiconductor patterns spaced apart from each other in a row direction
- the display device may further include a conductive layer crossing the plurality of semiconductor patterns and overlapping the plurality of semiconductor patterns; a first signal line electrically connected to one end of the plurality of semiconductor patterns; and a second signal line electrically connected to the other end of the plurality of semiconductor patterns.
- the first signal line and the second signal line can be supplied with a constant voltage signal
- the conductive layer can be supplied with a signal including a voltage of a first voltage level and a voltage of a second voltage level lower than the first voltage level
- the display device further includes: a second semiconductor pattern disposed on the same layer as the plurality of semiconductor patterns and extending in the row direction; a second conductive layer overlapping the second semiconductor pattern; and third signal lines electrically connected to opposite ends of the second semiconductor pattern that do not overlap the second conductive layer; wherein the third signal lines can be supplied with the same voltage as the voltage supplied to the first signal line and the second signal line.
- the display device may further include a conductive layer overlapping the semiconductor pattern; and a signal line electrically connected to the conductive layer.
- the semiconductor pattern can be electrically connected to a conductive line that supplies a constant voltage.
- the display device further includes a third thin-film transistor disposed in the display area and including an oxide semiconductor layer disposed on an upper layer of the silicon semiconductor layer; wherein the semiconductor pattern can electrically connect the oxide semiconductor layer of the second thin-film transistor and the oxide semiconductor layer of the third thin-film transistor.
- the display device may further include a third thin film transistor disposed in the peripheral region and including the oxide semiconductor layer.
- the display device may further include a fourth thin film transistor disposed in the display area and including the silicon semiconductor layer.
- a display device includes a display area and a peripheral area, and includes: a semiconductor pattern disposed in the display area; a conductive layer disposed on the semiconductor pattern and overlapping the semiconductor pattern; a first electrode layer disposed on the conductive layer and overlapping the conductive layer; an oxide semiconductor layer disposed on the first electrode layer; a second electrode layer disposed on the oxide semiconductor layer; and a third electrode layer disposed on the second electrode layer and overlapping the second electrode layer.
- the semiconductor pattern may include a silicon semiconductor.
- the display device further includes a lower conductive layer disposed in the display area and disposed between the substrate and the semiconductor pattern, wherein the semiconductor pattern can overlap the lower conductive layer.
- the display device further includes a silicon semiconductor layer disposed in the peripheral region; and a fourth electrode layer disposed on the silicon semiconductor layer and overlapping the silicon semiconductor layer; wherein the silicon semiconductor layer is disposed in the same layer as the semiconductor pattern, and the fourth electrode layer can be disposed in the same layer as the conductive layer.
- a display device with improved display quality can be provided.
- the scope of the present invention is not limited by these effects.
- FIGS. 1A and 1B are schematic plan views illustrating a display device according to one or more embodiments.
- Figure 2 is a plan view schematically showing a display panel according to an example.
- FIGS. 3a to 3d are schematic cross-sectional views of the display panel taken along line I-I' of FIG. 2.
- FIGS. 4A to 8B are schematic drawings illustrating semiconductor patterns of a display area according to one or more embodiments.
- FIGS. 9A and 9B are equivalent circuit diagrams of pixels according to one embodiment.
- Figures 10 to 23 are drawings schematically illustrating the elements of the pixel illustrated in Figure 9a, layer by layer.
- Fig. 24 is a drawing schematically showing the arrangement of light-emitting areas of a plurality of pixels according to one embodiment.
- Fig. 25 is a cross-sectional view taken along line VIII-VIII' of Fig. 20 and Fig. 23.
- Figure 26 is a schematic diagram showing transistors and capacitors of the pixel illustrated in Figure 9a.
- Figure 27 is a schematic diagram showing the challenge layers at the edge of the display area.
- Figure 28 is a cross-sectional view taken along line X-X' of Figure 27.
- FIG. 29 is a schematic diagram illustrating transistors and capacitors of the pixel illustrated in FIG. 9a according to one embodiment.
- Figures 30 to 36 are drawings schematically illustrating, layer by layer, the elements of the pixel circuit illustrated in Figure 29.
- Figure 37 is a layout diagram that illustrates only a portion of the configuration of Figure 29.
- Fig. 38 is a cross-sectional view taken along line XI-XI' of Fig. 29.
- FIG. 39 is a schematic diagram illustrating transistors and capacitors of the pixel illustrated in FIG. 9a according to one embodiment.
- Fig. 40 is a cross-sectional view taken along line XII-XII' of Fig. 39.
- FIG. 41 is a schematic diagram illustrating transistors and capacitors of the pixel illustrated in FIG. 9a according to one embodiment.
- Figures 42 and 43 are drawings schematically illustrating some components of the pixel circuit illustrated in Figure 41.
- Figure 44 is a layout diagram illustrating an excerpt of a portion of the configuration of Figure 41.
- Fig. 45 is a cross-sectional view taken along line XIII-XIII' of Fig. 41.
- FIG. 46 is a schematic diagram illustrating transistors and capacitors of the pixel illustrated in FIG. 9a according to one embodiment.
- Figures 47 and 48 are drawings schematically illustrating some components of the pixel circuit illustrated in Figure 46.
- a display device includes: a first thin-film transistor including a display area and a peripheral area, the first thin-film transistor being arranged in the peripheral area and including a silicon semiconductor layer; a second thin-film transistor being arranged in the display area and including an oxide semiconductor layer arranged on an upper layer of the silicon semiconductor layer; and a semiconductor pattern being arranged in the display area and being arranged in the same layer as the silicon semiconductor layer of the first thin-film transistor.
- the x-axis, y-axis, and z-axis are not limited to the three axes of the rectangular coordinate system, and can be interpreted in a broader sense.
- the x-axis, y-axis, and z-axis can be perpendicular or substantially perpendicular to each other, or can represent different directions that are not orthogonal to each other.
- first,” “second,” “third,” etc. may be used herein to describe various elements, components, regions, layers, and/or sections, these elements, components, regions, layers, and/or sections should not be limited by such terms. These terms may be used to distinguish one element, component, region, layer, or section from another element, component, region, layer, or section. Thus, a first element, component, region, layer, or section described below may also be referred to as a second element, component, region, layer, or section without departing from the spirit and scope of the present disclosure.
- a component or layer When a component or layer is referred to as being “on,” “connected,” or “coupled to” another component or layer, it can be understood as being directly on, connected, or coupled, or there can be one or more intervening components or layers.
- a layer, region, or component when referred to as being “electrically connected” to another layer, region, or component, it can be directly electrically connected to the other layer, region, or component, and/or can be indirectly electrically connected to the other layer, region, or component via one or more intervening layers, regions, or components.
- a component or layer when a component or layer is referred to as being “between” two components or layers, it can be understood that it can be the only component or layer between the two components or layers, or that there can be one or more intervening components or layers.
- the term “on” as used in relation to a device state may mean an activated state of the device, and the term “off” may mean a deactivated state of the device.
- “On” as used in relation to a signal received by a device may mean a signal that activates the device, and “off” may mean a signal that deactivates the device.
- the device may be activated by a high-level voltage or a low-level voltage.
- P-channel transistor P-type transistor
- N-type transistor is activated by a high-level voltage.
- the "on" voltages of the P-type transistor and the N-type transistor have opposite (e.g., high and low) voltage levels.
- the application of any signal may mean that an on voltage (e.g., a high-level voltage) is applied, and the absence of any signal may mean that an off voltage (e.g., a low-level voltage) is applied.
- the expression “A and/or B” refers to A, B, or A and B.
- the expression “at least one” preceding a list of elements modifies the list of elements as a whole but does not modify individual elements of the list.
- the expressions "at least one of a, b, or c", “at least one of a, b and c", and "at least one selected from the group consisting of a, b, and c" refer to a only, b only, c only, both a and b, both a and c, both b and c, all a, b, c, or variations thereof.
- the display device may be implemented as an electronic device such as a smart phone, a mobile phone, a smart watch, a navigation device, a game console, a TV, a head unit for a vehicle, a notebook computer, a laptop computer, a tablet computer, a PMP (Personal Media Player), a PDA (Personal Digital Assistants), etc.
- the electronic device may be a flexible device.
- FIG. 1A and FIG. 1B are schematic plan views illustrating a display device according to one embodiment.
- FIG. 2 is a schematic plan view illustrating a display panel according to one embodiment.
- the display device (1) may include a display area (DA) for displaying an image and a peripheral area (PA) outside the display area (DA).
- the display area (DA) may be entirely surrounded by the peripheral area (PA) (for example, it may be the periphery of the display area).
- the display area (DA) When the display area (DA) is viewed as a planar shape, the display area (DA) may have a rectangular shape. In another embodiment, the display area (DA) may have a polygonal shape such as a triangle, a pentagon, a hexagon, a circular shape, an oval shape, an irregular shape, etc. The display area (DA) may have a rounded corner at an edge. In one embodiment, the display device (1) may have a display area (DA) of a shape in which the length in the x direction is longer than the length in the y direction, as illustrated in FIG. 1a. In another embodiment, the display device (1) may have a display area (DA) of a shape in which the length in the y direction is longer than the length in the x direction, as illustrated in FIG. 1b.
- the display device (1) includes a display panel (10), and a cover window (not shown) that protects the display panel (10) may be placed on the upper part of the display panel (10).
- the substrate (100) may include a display area (DA) and a peripheral area (PA) surrounding the display area (DA) (e.g., around the display area).
- DA display area
- PA peripheral area
- a plurality of pixels (PX) may be arranged in a display area (DA).
- a plurality of gate lines (GL), a plurality of data lines (DL), and a plurality of pixels (PX) connected to the gate lines (GL) and data lines (DL) may be arranged in the display area (DA).
- the plurality of pixels (PX) may be arranged in various forms such as a stripe arrangement, an RGBG arrangement (e.g., a PENTILE® arrangement, PENTILE® is a trademark of Samsung Display Co., Ltd.), a diamond arrangement, and a mosaic arrangement to implement an image.
- Each pixel (PX) includes an organic light-emitting diode (OLED) as a display element (e.g., a light-emitting element), and the organic light-emitting diode (OLED) may be connected to a pixel circuit.
- the pixel circuit may include a plurality of transistors and at least one capacitor.
- the pixel (PX) may emit light of, for example, red, green, blue, or white through a corresponding organic light-emitting diode (OLED).
- Each pixel (PX) can be connected to a corresponding gate line among a plurality of gate lines (GL) and a corresponding data line among a plurality of data lines (DL).
- the gate lines (GLs) may each extend in the x direction (e.g., row direction) and be connected to pixels (PXs) positioned in the same row.
- the gate lines (GLs) may each transmit a gate signal to the pixels (PXs) positioned in the same row.
- the data lines (DLs) may each extend in the y direction (e.g., column direction) and be connected to pixels (PXs) positioned in the same column.
- the data lines (DLs) may each transmit a data signal to the pixels (PXs) positioned in the same column in synchronization with the gate signal.
- Each pixel (PX) may be connected to at least one of a plurality of driving voltage lines (PLs) to receive a driving voltage (ELVDD).
- the driving voltage lines (PLs) may each extend in the y direction (e.g., column direction) and be connected to pixels (PXs) positioned in the same column.
- FIG. 2 illustrates an example in which a pixel (PX) is connected to one gate line (GL), the embodiment of the present invention is not limited thereto.
- a pixel (PX) may be connected to one or more gate lines (GL).
- Each of the pixel circuits driving the pixels (PX) can be electrically connected to peripheral circuits arranged in a peripheral area (PA).
- a first gate driving circuit (DRV1), a second gate driving circuit (DRV2), a terminal portion (PAD) (e.g., a terminal area), a driving voltage supply line (11), and a common voltage supply line (13), etc. can be arranged in the peripheral area (PA).
- the peripheral area (PA) may be a kind of non-display area where pixels (PX) are not arranged.
- a part of the peripheral area (PA) may be implemented as a display area (DA).
- DA display area
- a plurality of pixels (PX) may be arranged to overlap an outer circuit at at least one corner of the peripheral area (PA). Accordingly, the dead area may be reduced and the display area (DA) may be expanded.
- the first gate driving circuit (DRV1) is connected to a plurality of gate lines (GLs) and can apply a gate signal to each of the pixel circuits that drive the pixels (PXs) through the gate lines (GLs).
- the gate signal may be a gate control signal that controls turning on and off of a transistor whose gate is connected to the gate line (GL).
- the gate signal may be a square wave signal including a gate-on voltage that can turn on the transistor and a gate-off voltage that can turn off the transistor.
- the second gate driving circuit (DRV2) may be located on the opposite side of the first gate driving circuit (DRV1) with respect to the display area (DA) and may be parallel or approximately parallel to the first gate driving circuit (DRV1).
- some of the pixel circuits of the pixels (PXs) of the display area (DA) may be electrically connected to the first gate driving circuit (DRV1), and the rest may be electrically connected to the second gate driving circuit (DRV2).
- pixel circuits of pixels (PX) of the display area (DA) may be electrically connected to a first gate driving circuit (DRV1) and a second gate driving circuit (DRV2).
- the second gate driving circuit (DRV2) may be omitted as needed or in some cases.
- the terminal portion (PAD) may be placed on one side (e.g., one end) of the substrate (100).
- the terminal portion (PAD) may be exposed without being covered by an insulating layer and may be connected to the display circuit board (30).
- a display driver portion (32) may be placed on the display circuit board (30).
- the display driver (32) can generate a control signal transmitted to the first gate driver circuit (DRV1) and the second gate driver circuit (DRV2).
- the display driver (32) can include a data driver circuit.
- the data driver circuit is connected to a plurality of data lines (DL) and generates a data signal, and the generated data signal can be transmitted to pixel circuits of pixels (PX) through a fan-out line (FW) and a data line (DL) connected to the fan-out line (FW).
- the display driving unit (32) includes a power supply circuit, and the power supply circuit can supply a driving voltage (ELVDD) to a driving voltage supply line (11) and can supply a common voltage (ELVSS) to a common voltage supply line (13).
- the driving voltage (ELVDD) is applied to pixel circuits of a pixel (PX) through a driving voltage line (PL) connected to the driving voltage supply line (11), and the common voltage (ELVSS) can be applied to an opposite electrode of a display element through the common voltage supply line (13).
- the driving voltage supply line (11) is connected to the terminal portion (PAD) and may be provided to extend in the x direction from the lower side of the display area (DA).
- the common voltage supply line (13) is connected to the terminal portion (PAD) and has a shape in which one side is open in a loop shape, so that it may partially surround the display area (DA) (for example, it may be the periphery of the display area).
- Part or all of the first gate driving circuit (DRV1) and the second gate driving circuit (DRV2) may be formed (for example, directly formed) in the peripheral area (PA) of the substrate (100) during a process of forming a pixel circuit in the display area (DA) of the substrate (100).
- the display driving unit (32) may be formed in the form of an integrated circuit chip and may be placed on a display circuit board (30) electrically connected to a terminal unit (PAD) placed on one side of the substrate (100).
- the display circuit board (30) may be a flexible printed circuit board (FPCB).
- the display driving unit (32) may be placed directly on the substrate in a COG (Chip On Glass) or COP (Chip On Plastic) manner.
- a plurality of transistors included in pixel circuits of the display area (DA) may be N-type oxide thin film transistors, and a plurality of transistors included in outer circuits of the peripheral area (PA), for example, the first gate driving circuit (DRV1) and the second gate driving circuit (DRV2), may be P-type silicon thin film transistors.
- some of the transistors included in the pixel circuits of the display area (DA) may be N-type oxide thin film transistors, the remaining some may be P-type silicon thin film transistors, and the plurality of transistors included in the outer circuit of the peripheral area (PA) may be P-type silicon thin film transistors.
- a plurality of transistors included in the pixel circuits of the display area (DA) may be N-type oxide thin film transistors, and a plurality of transistors included in the outer circuit of the peripheral area (PA) may be some N-type oxide thin film transistors and the remaining some P-type silicon thin film transistors.
- a plurality of transistors included in the pixel circuits of the display area (DA) and a plurality of transistors included in the outer circuits of the peripheral area (PA) may be some N-type oxide thin film transistors and the remaining some may be P-type silicon thin film transistors.
- the oxide thin film transistor may have a semiconductor layer that includes an oxide.
- the oxide semiconductor is a Zn oxide-based material, and may include Zn oxide, In-Zn oxide, Ga-In-Zn oxide, and the like.
- the oxide semiconductor may be an IGZO (In-Ga-Zn-O) semiconductor in which metals such as indium (In) and gallium (Ga) are contained in ZnO.
- the oxide thin film transistor may be a low temperature polycrystalline oxide (LTPO) thin film transistor.
- the silicon thin film transistor may be a low temperature poly-silicon (LTPS) thin film transistor in which the semiconductor layer includes amorphous silicon, poly silicon, and the like.
- FIGS. 3A to 3D are schematic cross-sectional views of a display panel taken along line I-I' of FIG. 2 in one embodiment.
- pixels (PX) may be arranged in a display area (DA) of a substrate (100), and a driving circuit (PCb) may be arranged in a peripheral area (PA).
- the driving circuit (PCb) may be one of the first gate driving circuit (DRV1) and the second gate driving circuit (DRV2) illustrated in FIG. 2.
- a pixel may include a pixel circuit (PCa) and a light-emitting element (DE) as a display element connected to the pixel circuit (PCa).
- An insulating layer (IL) may be included between the substrate (100) and the light-emitting element (DE).
- the insulating layer (IL) may include one or more inorganic insulating layers and/or one or more organic insulating layers.
- the pixel circuit (PCa) may include at least one oxide thin film transistor (TFTo), and the driver circuit (PCb) may include at least one silicon thin film transistor (TFTs).
- TFTo oxide thin film transistor
- TFTs silicon thin film transistor
- the pixel circuit (PCa) may include at least one oxide thin film transistor (TFTo) and at least one silicon thin film transistor (TFTs), and the driver circuit (PCb) may include at least one silicon thin film transistor (TFTs).
- TFTo oxide thin film transistor
- TFTs silicon thin film transistor
- the pixel circuit (PCa) may include at least one oxide thin film transistor (TFTo), and the driver circuit (PCb) may include at least one silicon thin film transistor (TFTs) and at least one oxide thin film transistor (TFTo).
- TFTo oxide thin film transistor
- TFTs silicon thin film transistor
- TFTo oxide thin film transistor
- the pixel circuit (PCa) and the driver circuit (PCb) may include at least one oxide thin film transistor (TFTo) and at least one silicon thin film transistor (TFTs).
- TFTo oxide thin film transistor
- TFTs silicon thin film transistor
- An oxide thin film transistor may include a semiconductor layer (hereinafter, referred to as an oxide semiconductor layer) (OACT) including an oxide, a gate electrode (GE1), a source electrode (SE1), and a drain electrode (DE1).
- the source electrode (SE1) and the drain electrode (DE1) may be electrically connected to a source region and a drain region of the oxide semiconductor layer (OACT), respectively.
- the gate electrode (GE1) may overlap a channel region of the oxide semiconductor layer (OACT).
- One of the source electrode (SE1) and the drain electrode (DE1), for example, the source electrode (SE1) may be electrically connected to a pixel electrode (PE) of a light-emitting element (DE).
- the light-emitting element (DE) may include a pixel electrode (PE), an emission layer (EL), and a counter electrode (CE).
- Silicon thin film transistors may include a semiconductor layer (hereinafter, silicon semiconductor layer) (SACT) including silicon, a gate electrode (GE2), a source electrode (SE2), and a drain electrode (DE2).
- SACT silicon semiconductor layer
- the source electrode (SE2) and the drain electrode (DE2) may be electrically connected to a source region and a drain region of the silicon semiconductor layer (SACT), respectively.
- the gate electrode (GE2) may overlap a channel region of the silicon semiconductor layer (SACT).
- the oxide semiconductor layer (OACT) constituting the oxide thin film transistor (TFTo) is formed after the silicon semiconductor layer (SACT) constituting the silicon thin film transistor (TFTs), so that, as illustrated in FIGS. 3a to 3d, the oxide semiconductor layer (OACT) can be formed on top (e.g., as an upper layer) of the silicon semiconductor layer (SACT).
- a semiconductor pattern (CP) may be arranged around (e.g., adjacent to) a pixel circuit (PCa).
- the semiconductor pattern (CP) may include the same material as the silicon semiconductor layer (SACT).
- the semiconductor pattern (CP) may include a silicon semiconductor.
- the semiconductor pattern (CP) may be a low temperature poly-silicon (LTPS) pattern.
- the semiconductor pattern (CP) may be formed in the display area (DA) at the same time as or simultaneously with the formation of the silicon semiconductor layer (SACT) of silicon thin film transistors (TFTs).
- the semiconductor pattern (CP) may function as a part of an independent transistor or conductive line separate from the pixel circuit (PCa) in the display area (DA).
- FIGS. 4A to 8B are schematic drawings illustrating a semiconductor pattern of a display area according to one embodiment.
- the semiconductor pattern (CP) may be a component of a transistor in the display area (DA).
- the semiconductor pattern (CP) may be a semiconductor layer of a silicon thin film transistor (TRs).
- the silicon thin film transistor (TRs) may be an LTPS thin film transistor.
- a semiconductor pattern (CP) extends in the x direction and can be arranged in each row.
- a conductive layer (DCL) extends in the x direction and can be arranged in each row on top of the semiconductor pattern (CP). In each row, the conductive layer (DCL) can be arranged on top of the semiconductor pattern (CP) to overlap the semiconductor pattern (CP). At an edge of the display area (DA), both ends (for example, opposite ends) of the semiconductor pattern (CP) may not overlap the conductive layer (DCL).
- the conductive layer (DCL) may include the same material as the gate electrode (GE2) of the thin film transistor (TFT2).
- the conductive layer (DCL) may be formed in the display area (DA) at the same time as or simultaneously with the formation of the gate electrode (GE2) of the thin film transistor (TFT2) in the peripheral area (PA).
- the semiconductor pattern (CP) and the conductive layer (DCL) may correspond to a silicon semiconductor layer and a gate electrode of silicon thin film transistors (TRs), respectively. Both ends (e.g., opposite ends) of the semiconductor pattern (CP) that do not overlap the conductive layer (DCL) may correspond to a source region (e.g., a source electrode) and a drain region (e.g., a drain electrode). A region of the semiconductor pattern (CP) that overlaps the conductive layer (DCL) may correspond to a channel region between the source region and the drain region.
- a length of the channel region of the silicon thin film transistors (TRs) and a length of a region corresponding to the channel region of the semiconductor pattern (CP) may be a length of a row (pixel line) of a display area (DA) or approximately a length of a row (e.g., a pixel line) of the display area (DA).
- the semiconductor pattern (CP) and the conductive layer (DCL) can be electrically connected to a signal line (SCL).
- the signal line (SCL) can extend in the y direction.
- the signal line (SCL) can be supplied with a DC voltage such as a driving voltage (ELVDD), a first initialization voltage (Vint), a second initialization voltage (Vaint), or a reference voltage (Vref).
- a gate electrode, a source region (e.g., a source electrode), and a drain region (e.g., a drain electrode) of a silicon thin film transistor (TRs) can be supplied with the driving voltage (ELVDD), the first initialization voltage (Vint), the second initialization voltage (Vaint), or the reference voltage (Vref), respectively.
- the silicon thin film transistors (TRs) may be P-type LTPS thin film transistors as illustrated in FIG. 4c, or may be N-type LTPS thin film transistors as illustrated in FIG. 4d.
- FIGS. 4a to 4d are examples in which the same voltage is applied to the gate electrode, source region (e.g., source electrode), and drain region (e.g., drain electrode) of the silicon thin film transistors (TRs).
- the voltage applied to the gate electrode of the silicon thin film transistors (TRs) and the voltage applied to the source region (e.g., the source electrode) and the drain region (e.g., the drain electrode) may be different.
- the conductive layer (DCL) may be electrically connected to the first signal line (SCL1)
- the semiconductor pattern (CP) may be electrically connected to the second signal line (SCL2).
- the first signal line (SCL1) and the second signal line (SCL2) may be disposed in the same layer (e.g., within the same layer or on the same layer) as illustrated in FIG. 4f, or may be disposed in different layers (e.g., within or on different layers).
- the first signal line (SCL1) is supplied with a driving voltage (ELVDD), and the second signal line (SCL2) can be supplied with a DC voltage different from the driving voltage (ELVDD), such as a first initialization voltage (Vint), a second initialization voltage (Vaint), or a reference voltage (Vref).
- the gate electrode of the silicon thin film transistor (TRs) is supplied with the driving voltage (ELVDD)
- the source region (e.g., the source electrode) and the drain region e.g., the drain electrode
- the first initialization voltage (Vint), the second initialization voltage (Vaint), or the reference voltage (Vref) respectively.
- the silicon thin film transistors (TRs) illustrated in FIGS. 4a to 4g may be non-operating transistors that are always in an off state and do not participate in the operation of the pixel (PX) or the light emission of the pixel (PX).
- the silicon thin film transistors may be operational transistors that are not involved in the operation of the pixel (PX) or the emission of the pixel (PX), but are always operated in an on state (e.g., always on).
- the conductive layer (DCL) may be electrically connected to the first signal line (SCL1), and the semiconductor pattern (CP) may be electrically connected to the second signal line (SCL2).
- the semiconductor pattern (CP) may be electrically connected to the second signal line (SCL2).
- the gate electrode of the silicon thin film transistors (TRs) implemented with the P-type LTPS thin film transistor may be supplied with a first initialization voltage (Vint), a second initialization voltage (Vaint), or a reference voltage (Vref), and the source region (e.g., the source electrode) and the drain region (e.g., the drain electrode) may each be supplied with a driving voltage (ELVDD).
- Vint first initialization voltage
- Vaint second initialization voltage
- Vref reference voltage
- ELVDD driving voltage
- the gate electrode of the silicon thin film transistors (TRs) implemented with the N-type LTPS thin film transistor may be supplied with a driving voltage (ELVDD), and the source region (e.g., the source electrode) and the drain region (e.g., the drain electrode) may each be supplied with a first initialization voltage (Vint), a second initialization voltage (Vaint), or a reference voltage (Vref).
- ELVDD driving voltage
- Vint first initialization voltage
- Vaint second initialization voltage
- Vref reference voltage
- FIGS. 4A to 4I are examples in which one silicon thin film transistor (TRs) is formed per row.
- a plurality of silicon thin film transistors (TRs) connected in series per row may be formed.
- a semiconductor pattern (CP) may extend in the x direction and be arranged in each row.
- a plurality of island-type conductive electrodes (DCEs) may be arranged in each row on the semiconductor pattern (CP).
- the conductive electrodes (DCEs) may be arranged spaced apart from each other in the x direction on the semiconductor pattern (CP) so as to overlap the semiconductor pattern (CP).
- the conductive electrodes (DCEs) may include the same material as the gate electrode (GE2) of the thin film transistor (TFT2).
- the conductive electrodes (DCEs) may be formed in the display area (DA) at the same time as or simultaneously with the formation of the gate electrode (GE2) of the thin film transistor (TFT2) in the peripheral area (PA).
- each of the semiconductor pattern (CP) and the conductive electrode (DCE) may correspond to a silicon semiconductor layer and a gate electrode of silicon thin film transistors (TRs). Regions of the semiconductor pattern (CP) that do not overlap the conductive electrode (DCE) may correspond to a source region (e.g., a source electrode) and a drain region (e.g., a drain electrode), and each of the regions of the semiconductor pattern (CP) that overlap the conductive electrode (DCE) may correspond to a channel region between the source region and the drain region.
- a source region e.g., a source electrode
- a drain region e.g., a drain electrode
- the length of the channel region of the silicon thin film transistor (TRs) and the length of the region corresponding to the channel region of the semiconductor pattern (CP) may be the length of the conductive electrode (DCE) in the x direction or approximately the length of the conductive electrode (DCE) in the x direction.
- the semiconductor pattern (CP) and the conductive electrode (DCE) can be electrically connected to the signal line (SCL).
- the signal line (SCL) extends in the y direction and can be supplied with a driving voltage (ELVDD).
- the gate electrode, the source region (e.g., the source electrode) and the drain region (e.g., the drain electrode) of the silicon thin film transistors (TRs) can each be supplied with the driving voltage (ELVDD).
- the intermediate node (N) between adjacent silicon thin film transistors (TRs) can be an area of the semiconductor pattern (CP) that does not overlap the conductive electrode (DCE) between adjacent conductive electrodes (DCE).
- the signal line (SCL) can be in contact with the semiconductor pattern (CP) at the intermediate node (N) so that the signal line (SCL) and the semiconductor pattern (CP) can be electrically connected.
- each signal line (SCL) can be a source electrode or a drain electrode electrically connected to the gate electrode.
- the gate electrode, the source region (e.g., the source electrode), and the drain region (e.g., the drain electrode) of each of the silicon thin film transistors (TRs) may be supplied with a first initialization voltage (Vint), a second initialization voltage (Vaint), or a reference voltage (Vref) in addition to the driving voltage (ELVDD).
- the silicon thin film transistors (TRs) may be P-type LTPS thin film transistors or N-type LTPS thin film transistors.
- the semiconductor pattern (CP) may be a component of a four-terminal silicon thin film transistor (TRs) in the display area (DA).
- the semiconductor pattern (CP) may be a semiconductor layer of the silicon thin film transistor (TRs).
- a semiconductor pattern (CP) extends in the x direction and can be arranged in each row.
- An upper conductive layer (DCLt) can be arranged on the semiconductor pattern (CP).
- the upper conductive layer (DCLt) extends in the x direction and can be arranged in each row.
- the upper conductive layer (DCLt) can be arranged to overlap the semiconductor pattern (CP).
- a lower conductive layer (DCLb) can be arranged under the semiconductor pattern (CP).
- the lower conductive layer (DCLb) extends in the x direction and can be arranged in each row.
- the semiconductor pattern (CP) can be arranged on the lower conductive layer (DCLb) to overlap the lower conductive layer (DCLb).
- both ends (for example, opposite ends) of the semiconductor pattern (CP) may not overlap the upper conductive layer (DCLt).
- the upper conductive layer (DCLt) may include the same material as a gate electrode (GE2) of a thin film transistor (TFT2).
- GE2 of the thin film transistor (TFT2) is formed in the peripheral area (PA)
- the upper conductive layer (DCLt) can be formed in the display area (DA) at the same time or simultaneously.
- the semiconductor pattern (CP), the upper conductive layer (DCLt), and the lower conductive layer (DCLb) may each correspond to a silicon semiconductor layer, a top gate electrode, and a bottom gate electrode of a four-terminal silicon thin film transistor (TRs). Both ends (e.g., opposite ends) of the semiconductor pattern (CP) that do not overlap the upper conductive layer (DCLt) correspond to a source region (e.g., a source electrode) and a drain region (e.g., a drain electrode), and a region of the semiconductor pattern (CP) that overlaps the upper conductive layer (DCLt) may correspond to a channel region between the source region and the drain region.
- TRs four-terminal silicon thin film transistor
- a length of the channel region of the four-terminal silicon thin film transistor (TRs) and a length of the region corresponding to the channel region of the semiconductor pattern (CP) may be the length of a row of a display area (DA) or approximately the length of a row of the display area (DA).
- the semiconductor pattern (CP), the upper conductive layer (DCLt), and the lower conductive layer (DCLb) can be electrically connected to a signal line (SCL).
- the signal line (SCL) extends in the y direction and can be supplied with a driving voltage (ELVDD).
- a gate electrode, a source region (e.g., a source electrode), and a drain region (e.g., a drain electrode) of a silicon thin film transistor (TRs) can each be supplied with the driving voltage (ELVDD).
- FIGS. 6A to 6C are examples in which one 4-terminal silicon thin film transistor (TRs) is formed per row.
- a plurality of island-type upper conductive layers (DCLt) may be arranged spaced apart from each other in the x direction so as to overlap a semiconductor pattern (CP), thereby forming a plurality of 4-terminal silicon thin film transistors (TRs) connected in series per row.
- the semiconductor pattern (CP) may be a part of a silicon thin film transistor (TRds) in the display area (DA).
- the semiconductor pattern (CP) may be a semiconductor layer of the silicon thin film transistor (TRds).
- the silicon thin film transistor (TRds) may not be involved in the operation of the pixel (PX) or the light emission of the pixel (PX), but may be an operating transistor that is operated by a signal supplied to a gate electrode.
- the silicon thin film transistor (TRds) may be an LTPS thin film transistor.
- a plurality of semiconductor patterns may be arranged in each row. In each row, a plurality of semiconductor patterns (CPs) may be arranged to be spaced apart from each other in the x direction.
- a conductive layer (DCL) may extend in the x direction and be arranged in each row. In each row, the conductive layer (DCL) may be arranged over a plurality of semiconductor patterns (CPs) to cross the semiconductor patterns (CPs) and partially overlap the semiconductor patterns (CPs).
- the conductive layer (DCL) may include the same material as the gate electrode (GE2) of the thin film transistor (TFT2). When the gate electrode (GE2) of the thin film transistor (TFT2) is formed in the peripheral area (PA), the conductive layer (DCL) may be formed in the display area (DA) at the same time or simultaneously.
- Both ends (e.g., opposite ends) of a semiconductor pattern (CP) can be electrically connected to a signal line (SCL) and supplied with a driving voltage (ELVDD).
- Both ends (e.g., opposite ends) of a conductive layer (DCL) can be connected to a first gate driving circuit (DRV1) and/or a second gate driving circuit (DRV2).
- the conductive layer (DCL) can receive a gate signal (GS) from the first gate driving circuit (DRV1) and/or the second gate driving circuit (DRV2).
- a portion of a semiconductor pattern (CP) and a conductive layer (DCL) overlapping the semiconductor pattern (CP) each correspond to a silicon semiconductor layer and a gate electrode of a silicon thin film transistor (TRds), and a plurality of silicon thin film transistors (TRds) connected in parallel for each row can be provided.
- Both ends (e.g., opposite ends) of the semiconductor pattern (CP) that do not overlap the conductive layer (DCL) correspond to a source region (e.g., a source electrode) and a drain region (e.g., a drain electrode), and a region of the semiconductor pattern (CP) overlapping the conductive layer (DCL) can correspond to a channel region between the source region and the drain region.
- the length of the channel region of the silicon thin film transistor (TRs) and the length of the region corresponding to the channel region of the semiconductor pattern (CP) can be the y-direction width of the conductive layer (DCL) or approximately the y-direction width of the conductive layer (DCL).
- the semiconductor pattern (CP) receives a driving voltage (ELVDD) from a signal line (SCL), and the conductive layer (DCL) receives a gate signal (GS) from a first gate driving circuit (DRV1) and/or a second gate driving circuit (DRV2), so that the silicon thin film transistor (TRds) can operate in response to the gate signal (GS).
- ELVDD driving voltage
- DCL conductive layer
- GS gate signal
- DRV1 first gate driving circuit
- DRV2 second gate driving circuit
- a semiconductor pattern (CP) in a floating state is arranged in a display area (DA), and a conductive layer (DCL) supplied with a constant voltage (for example, a predetermined or preset constant voltage) may be arranged on the semiconductor pattern (CP) to overlap the semiconductor pattern (CP).
- the semiconductor pattern (CP) may extend in the x direction and may be arranged in each row.
- the conductive layer (DCL) may extend in the x direction and may be arranged in each row.
- the conductive layer (DCL) may be electrically connected to a signal line (SCL).
- the signal line (SCL) may extend in the y direction and may receive a driving voltage (ELVDD).
- the conductive layer (DCL) illustrated in FIGS. 8A and 8B may be omitted, and only the semiconductor pattern (CP) in a floating state may extend in the x direction and be arranged in each row.
- the semiconductor pattern (CP) may be designed in the display area (DA) to function as a connection line connecting elements constituting the pixel circuit (PCa) in the display area (DA) to each other or as a constant voltage line supplying a voltage (e.g., a predetermined or preset voltage) to the pixel circuit (PCa).
- a voltage e.g., a predetermined or preset voltage
- FIGS. 9A and 9B are equivalent circuit diagrams of pixels according to one embodiment.
- a pixel may include an organic light-emitting diode (OLED) as a display element and a pixel circuit (PCa) connected to the organic light-emitting diode (OLED).
- OLED organic light-emitting diode
- PCa pixel circuit
- a pixel (PX) can be connected to a first gate line (GWL) that transmits a first gate signal (GW), a second gate line (GIL) that transmits a second gate signal (GI), a third gate line (GRL) that transmits a third gate signal (GR), a fourth gate line (EML) that transmits a fourth gate signal (EM), a fifth gate line (EMBL) that transmits a fifth gate signal (EMB), and a data line (DL) that transmits a data signal (Vdata).
- the fourth gate signal (EM) and the fifth gate signal (EMB) can be referred to as light emission control signals
- the fourth gate line (EML) and the fifth gate line (EMBL) can be referred to as light emission control lines.
- a pixel (PX) can be connected to a driving voltage line (PL) that transmits a driving voltage (ELVDD), a reference voltage line (VRL) that transmits a reference voltage (Vref), a first initialization voltage line (VL1) that transmits a first initialization voltage (Vint), and a second initialization voltage line (VL2) that transmits a second initialization voltage (Vaint).
- PL driving voltage line
- Vref reference voltage
- VL1 first initialization voltage line
- VL2 second initialization voltage line
- the voltage level of the driving voltage (ELVDD) can be higher than the voltage level of the common voltage (ELVSS).
- the voltage level of the reference voltage (Vref) can be lower than the voltage level of the driving voltage (ELVDD).
- the voltage level of the first initialization voltage (Vint) can be lower than the voltage level of the common voltage (ELVSS).
- the voltage level of the second initialization voltage (Vaint) can be higher than the voltage level of the first initialization voltage (Vint).
- the voltage level of the second initialization voltage (Vaint) can be equal to or higher than the voltage level of the common voltage (ELVSS).
- the pixel circuit (PCa) may include first to seventh transistors (T1 to T7), and first and second capacitors (C1 and C2).
- the first to seventh transistors (T1 to T7) may be N-type oxide thin film transistors.
- the first to fourth transistors (T1 to T4) and the seventh transistor (T7) may be N-type oxide thin film transistors, and the fifth transistor (T5) and the sixth transistor (T6) may be P-type oxide thin film transistors.
- the first transistor (T1) may be a driving transistor that outputs a driving current corresponding to a data signal.
- the second to seventh transistors (T2 to T7) may be switching transistors that transmit signals.
- a first terminal (e.g., a first electrode) and a second terminal (e.g., a second electrode) of each of the first to seventh transistors (T1 to T7) may be a source or a drain depending on the voltage of the first terminal and the second terminal.
- the first terminal may be a drain and the second terminal may be a source, or the first terminal may be a source and the second terminal may be a drain.
- the node to which the first gate of the first transistor (T1) is connected may be defined as the first node (N1).
- the node to which the second terminal of the first transistor (T1) is connected may be defined as the second node (N2).
- the first transistor (T1) may be connected between the driving voltage line (PL) and the organic light emitting diode (OLED).
- the first transistor (T1) may be connected between the fifth transistor (T5) and the sixth transistor (T6).
- the first transistor (T1) may include a gate, a first terminal, and a second terminal connected to a second node (N2).
- the gate of the first transistor (T1) may include a first gate connected to the first node (N1) and a second gate connected to the second node (N2).
- the first gate and the second gate may be arranged to face each other in different layers (for example, within or on different layers).
- the first gate and the second gate of the first transistor (T1) may be positioned to face each other with a semiconductor layer therebetween.
- a first gate of a first transistor (T1) may be connected to a second terminal of a second transistor (T2), a first terminal of a third transistor (T3), and a first capacitor (C1).
- a second gate of a first transistor (T1) may be connected to a first terminal of a sixth transistor (T6), a first capacitor (C1), and a second capacitor (C2).
- a first terminal of a first transistor (T1) may be connected to a driving voltage line (PL) via a fifth transistor (T5), and a second terminal may be connected to a pixel electrode of an organic light-emitting diode (OLED) via a sixth transistor (T6).
- the second terminal of the first transistor (T1) can be connected to the first terminal of the fourth transistor (T4), the first terminal of the sixth transistor (T6), the first capacitor (C1), and the second capacitor (C2).
- the first transistor (T1) can receive a data signal (Vdata) according to the switching operation of the second transistor (T2) and control the amount of driving current flowing to the organic light-emitting diode (OLED).
- a second transistor (T2) (e.g., a write transistor) may be connected to a data line (DL) and a first gate of the first transistor (T1).
- the second transistor (T2) may include a gate connected to the first gate line (GWL), a first terminal connected to the data line (DL), and a second terminal connected to the first node (N1).
- the second terminal of the second transistor (T2) may be connected to the first gate of the first transistor (T1), a first terminal of a third transistor (T3), and a first capacitor (C1).
- the second transistor (T2) is turned on by the first gate signal (GW) transmitted to the first gate line (GWL) to electrically connect the data line (DL) and the first node (N1), and can transmit the data signal (Vdata) transmitted to the data line (DL) to the first node (N1).
- a third transistor (T3) (e.g., a first initialization transistor) may be connected to a first gate of the first transistor (T1) and a reference voltage line (VRL).
- the third transistor (T3) may include a gate connected to the third gate line (GRL), a first terminal connected to a first node (N1), and a second terminal connected to the reference voltage line (VRL).
- the first terminal of the third transistor (T3) may be connected to the first gate of the first transistor (T1), the second terminal of the second transistor (T2), and the first capacitor (C1).
- the third transistor (T3) may be turned on by a third gate signal (GR) transmitted to the third gate line (GRL) and may transmit the reference voltage (Vref) transmitted to the reference voltage line (VRL) to the first node (N1).
- a fourth transistor (T4) (e.g., a second initialization transistor) may be connected to the first transistor (T1) and the first initialization voltage line (VL1).
- the fourth transistor (T4) may include a gate connected to the second gate line (GIL), a first terminal connected to the second node (N2), and a second terminal connected to the first initialization voltage line (VL1).
- a first terminal of the fourth transistor (T4) may be connected to a second terminal of the first transistor (T1), a first terminal of the sixth transistor (T1), a first capacitor (C1), and a second capacitor (C2).
- the fourth transistor (T4) is turned on by the second gate signal (GI) transmitted to the second gate line (GIL) and can transmit the first initialization voltage (Vint) transmitted to the first initialization voltage line (VL1) to the second node (N).
- a fifth transistor (T5) (e.g., a first light-emitting control transistor) may be connected to a driving voltage line (PL) and the first transistor (T1).
- the fifth transistor (T5) may include a gate connected to a fourth gate line (EML), a first terminal connected to the driving voltage line (PL), and a second terminal connected to the first terminal of the first transistor (T1).
- the fifth transistor (T5) may be turned on or off according to a fourth gate signal (EM) transmitted to the fourth gate line (EML).
- the sixth transistor (T6) (e.g., the second light-emitting control transistor) may be connected to the first transistor (T1) and the organic light-emitting diode (OLED).
- the sixth transistor (T6) may be connected between the second node (N2) and the third node (N3).
- the sixth transistor (T6) may include a gate connected to the fifth gate line (EMBL), a first terminal connected to the second node (N2), and a second terminal connected to the third node (N3).
- the first terminal of the sixth transistor (T6) may be connected to the second terminal of the first transistor (T1), the first terminal of the fourth transistor (T4), the first capacitor (C1), and the second capacitor (C2).
- the second terminal of the sixth transistor (T6) can be connected to the first terminal of the seventh transistor (T7) and the pixel electrode of the organic light-emitting diode (OLED).
- the sixth transistor (T6) can be turned on or off according to the fifth gate signal (EMB) transmitted to the fifth gate line (EMBL).
- the seventh transistor (T7) may be connected to an organic light-emitting diode (OLED) and a second initialization voltage line (VL2).
- the seventh transistor (T7) may be connected to the sixth transistor (T6) and the second initialization voltage line (VL2).
- the seventh transistor (T7) may include a gate connected to the second gate line (GIL), a first terminal connected to the third node (N3), and a second terminal connected to the second initialization voltage line (VL2).
- the first terminal of the seventh transistor (T7) may be connected to the second terminal of the sixth transistor (T6) and the pixel electrode of the organic light-emitting diode (OLED).
- the seventh transistor (T7) is turned on by the second gate signal (GI) transmitted to the second gate line (GIL) and can transmit the second initialization voltage (Vaint) transmitted to the second initialization voltage line (VL2) to the third node (N3).
- a first capacitor (C1) may be connected between a first gate of a first transistor (T1) and a second terminal of the first transistor (T1).
- a first electrode of the first capacitor (C1) may be connected to a first node (N1), and a second electrode may be connected to a second node (N2).
- a first electrode of the first capacitor (C1) may be connected to a first gate of the first transistor (T1), a second terminal of the second transistor (T2), and a first terminal of a third transistor (T3).
- the second electrode of the first capacitor (C1) may be connected to the second terminal and the second gate of the first transistor (T1), the second electrode of the second capacitor (C2), the first terminal of the fourth transistor (T4), and the first terminal of the sixth transistor (T6).
- the first capacitor (C1) may be a storage capacitor that stores a voltage corresponding to the threshold voltage of the first transistor (T1) and a data signal (Vdata).
- the second capacitor (C2) may be connected between the driving voltage line (PL) and the second node (N2).
- the first electrode of the second capacitor (C2) may be connected to the driving voltage line (PL).
- the second electrode of the second capacitor (C2) may be connected to the second terminal and the second gate of the first transistor (T1), the second electrode of the first capacitor (C1), the first terminal of the fourth transistor (T4), and the first terminal of the sixth transistor (T6).
- the capacitance of the first capacitor (C1) may be greater than the capacitance of the second capacitor (C2).
- An organic light-emitting diode may be connected to the first transistor (T1) via a sixth transistor (T6).
- the organic light-emitting diode (OLED) includes a pixel electrode (e.g., an anode) connected to a third node (N3) and a counter electrode (e.g., a cathode) facing the pixel electrode, and the counter electrode may be supplied with a common voltage (ELVSS).
- the counter electrode may be a common electrode common to a plurality of pixels (PX).
- FIGS. 10 to 23 are schematic diagrams illustrating elements of the pixel illustrated in FIG. 9A, layer by layer.
- FIG. 16 is a diagram illustrating elements of a first circuit area (PCA1).
- FIG. 21 is a diagram schematically illustrating conductive layers at an edge of a display area according to one embodiment.
- FIG. 22 is a cross-sectional view taken along lines VII-VII' of FIG. 20 and IX-IX' of FIG. 21.
- FIG. 24 is a diagram schematically illustrating an arrangement of light-emitting areas of a plurality of pixels according to one embodiment.
- FIG. 25 is a cross-sectional view taken along lines VIII-VIII' of FIGS. 20 and 23.
- a plurality of pixels (PX) arranged in a display area (DA) may include a first pixel (PX1) emitting light in a first color, a second pixel (PX2) emitting light in a second color, and a third pixel (PX3) emitting light in a third color.
- the first pixel (PX1) may be a red pixel
- the second pixel (PX2) may be a green pixel
- the third pixel (PX3) may be a blue pixel.
- the first pixel (PX1), the second pixel (PX2), and the third pixel (PX3) may be repeatedly arranged in an appropriate pattern (for example, a predetermined or preset pattern) along the x direction and the y direction.
- the first pixel (PX1), the second pixel (PX2), and the third pixel (PX3) may each include a corresponding pixel circuit (PCa) and a corresponding organic light-emitting diode (OLED) as a display element electrically connected to the pixel circuit (PCa).
- PCa corresponding pixel circuit
- OLED organic light-emitting diode
- the display area (DA) defined on the substrate (100) may include a plurality of circuit areas where pixel circuits are arranged and where rows and columns intersect.
- a unit circuit area including two or more circuit areas adjacent in the x direction may be defined.
- the unit circuit area (PCAu) may include three first circuit areas (PCA1), second circuit areas (PCA2), and third circuit areas (PCA3) adjacent in the x direction.
- the first circuit area (PCA1) may be an area where the pixel circuit (PCa) of the first pixel (PX1) is arranged.
- the second circuit area (PCA2) may be an area where the pixel circuit (PCa) of the second pixel (PX2) is arranged.
- the third circuit area (PCA3) may be an area where the pixel circuit (PCa) of the third pixel (PX3) is arranged.
- the pixel circuits (PCa) arranged in the first circuit area (PCA1), the second circuit area (PCA2), and the third circuit area (PCA3) can be electrically connected to display elements that emit light of different colors, respectively.
- the pixel circuits (PCa) arranged in the first circuit area (PCA1), the second circuit area (PCA2), and the third circuit area (PCA3) can drive the display elements to which they are electrically connected, respectively.
- the display element electrically connected to the pixel circuit (PCa) arranged in the first circuit area (PCA1) can emit red light.
- the display element electrically connected to the pixel circuit (PCa) arranged in the second circuit area (PCA2) can emit green light.
- the display element electrically connected to the pixel circuit (PCa) arranged in the third circuit area (PCA3) can emit blue light.
- different second initialization voltages may be supplied to the first pixel (PX1), the second pixel (PX2), and the third pixel (PX3) in consideration of the light emission characteristics of the first pixel (PX1), the second pixel (PX2), and the third pixel (PX3).
- the pixel circuit (PCa) of the first pixel (PX1) may be connected to the 2-1 initialization voltage line (VL21).
- the pixel circuit (PCa) of the second pixel (PX2) and the pixel circuit (PCa) of the third pixel (PX3) may be connected to the 2-2 initialization voltage line (VL22).
- the second initialization voltage supplied to the 2-1 initialization voltage line (VL21) and the second initialization voltage supplied to the 2-2 initialization voltage line (VL22) may be different.
- the same components may be arranged in each layer of the first circuit area (PCA1), the second circuit area (PCA2), and the third circuit area (PCA3).
- PCA1 the first circuit area
- PCA2 the second circuit area
- PCA3 the third circuit area
- FIGS. 22 and 25 are cross-sectional views of the first circuit area (PCA1).
- a first conductive layer (210) may be disposed on a substrate (100), as illustrated in FIG. 10.
- the substrate (100) may include a glass material, a ceramic material, a metal material, or a material having flexible or bendable characteristics.
- the substrate (100) may have a single-layer structure of an organic layer or a multi-layer structure of an organic layer and an inorganic layer.
- the substrate (100) may have a laminated structure of a first base layer/barrier layer/second base layer.
- the first base layer and the second base layer may each be an organic layer including a polymer resin.
- the first base layer and the second base layer may include a transparent polymer resin.
- the barrier layer is a barrier layer that prevents or substantially prevents penetration of external foreign substances, and may be a single-layer or multi-layer including an inorganic material such as silicon nitride (SiN x ) or silicon oxide (SiO x ). In another embodiment, a barrier layer may be further disposed between the substrate (100) and the first conductive layer (210).
- the first conductive layer (210) may extend in the x direction and may be arranged across the first circuit area (PCA1), the second circuit area (PCA2), and the third circuit area (PCA3).
- the first conductive layer (210) may correspond to the lower conductive layer (DCLb) illustrated in FIGS. 6a and 6b.
- a first insulating layer (111) may be arranged on a substrate (100) to cover a first conductive layer (210).
- a semiconductor pattern (CP) including a silicon semiconductor may be arranged on the first insulating layer (111), as illustrated in FIG. 11.
- the semiconductor pattern (CP) may extend in the x direction and may be arranged to cross the first circuit area (PCA1), the second circuit area (PCA2), and the third circuit area (PCA3).
- the semiconductor pattern (CP) may correspond to the semiconductor pattern (CP) illustrated in FIGS. 6A and 6B.
- a semiconductor pattern (CP) may be covered on a first insulating layer (111) and a second insulating layer (112) may be arranged, and a second conductive layer may be arranged on the second insulating layer (112).
- the second conductive layer may include a first electrode layer (220), a driving voltage line (PL), and a second-second initialization voltage line (VL22).
- the driving voltage line (PL) and the second-second initialization voltage line (VL22) may extend in the x direction and may be arranged to cross the first circuit area (PCA1), the second circuit area (PCA2), and the third circuit area (PCA3).
- the driving voltage line (PL) may include a protrusion (PLa) protruding in the +y direction and a protrusion (PLb) protruding in the -y direction from the main line (PLm) extending in the x direction.
- the protrusion (PLa) and the protrusion (PLb) may be positioned in each circuit area.
- a part of the driving voltage line (PL) may include a first electrode (C21) of the second capacitor (C2).
- the first electrode layer (220) may be provided in an island shape.
- the first electrode layer (220) may include a lower electrode (G11b) of the first gate electrode (G11) of the first transistor (T1) and a first electrode (C11) of the first capacitor (C1).
- a third insulating layer (113) may be arranged over a second conductive layer on a second insulating layer (112), and a third conductive layer may be arranged over the third insulating layer (113).
- the third conductive layer may include a second electrode layer (230), a reference voltage line (VRL), and a first initialization voltage line (VL1).
- the second electrode layer (230) may be provided in an island type.
- the second electrode layer (230) may overlap the first electrode layer (220) and the main line (PLm) of the driving voltage line (PL).
- the portion of the second electrode layer (230) that overlaps the first electrode layer (220) may include the second electrode (C12) of the first capacitor (C1).
- the portion of the second electrode layer (230) that overlaps the main line (PLm) of the driving voltage line (PL) may include the second gate electrode (G12) of the first transistor (T1) and the second electrode (C22) of the second capacitor (C2).
- the reference voltage line (VRL) and the first initialization voltage line (VL1) extend in the x direction and can be arranged to cross the first circuit area (PCA1), the second circuit area (PCA2), and the third circuit area (PCA3).
- the third conductive layer may further include a repair line (RL).
- the repair line (RL) may extend in the x direction and may be arranged to cross the first circuit area (PCA1), the second circuit area (PCA2), and the third circuit area (PCA3).
- a fourth insulating layer (114) is disposed on a third conductive layer covering a third insulating layer (113), and a semiconductor layer (OACT) including an oxide semiconductor may be disposed on the fourth insulating layer (114), as illustrated in FIG. 14.
- the semiconductor layer (OACT) may include a first semiconductor layer (OACT1), a second semiconductor layer (OACT2), a third semiconductor layer (OACT3), and a fourth semiconductor layer (OACT4).
- the semiconductor layer (OACT) may include a channel region of each of the first to seventh transistors (T1 to T7), and a source region and a drain region on both sides (for example, opposite sides) of the channel region.
- the source region or the drain region may be interpreted as a source electrode or a drain electrode of the transistor, as necessary or in some cases.
- the first semiconductor layer (OACT1) may include a source region (S1) and a drain region (D1) of the first transistor (T1) and a source region (S5) and a drain region (D5) of the fifth transistor (T5).
- the second semiconductor layer (OACT2) may include a source region (S2) and a drain region (D2) of the second transistor (T2) and a source region (S3) and a drain region (D3) of the third transistor (T3).
- the third semiconductor layer (OACT3) may include a source region (S6) and a drain region (D6) of the sixth transistor (T6) and a source region (S7) and a drain region (D7) of the seventh transistor (T7).
- the fourth semiconductor layer (OACT4) may include a source region (S4) and a drain region (D4) of the fourth transistor (T4).
- a fifth insulating layer (115) may be disposed on a fourth insulating layer (114) to cover a semiconductor layer (OACT), and a fourth conductive layer may be disposed on the fifth insulating layer (115).
- the fourth conductive layer may include gate electrodes (G1 to G7) of the first to seventh transistors (T1 to T7).
- the fourth conductive layer may include a first gate line (GWL), a second gate line (GIL), a third gate line (GRL), a fourth gate line (EML), a fifth gate line (EMBL), and a second-first initialization voltage line (VL21).
- the gate electrodes (G1 to G7) of the first to seventh transistors (T1 to T7) can overlap the channel regions of the semiconductor layer (OACT).
- the third electrode layer (240) may include the upper electrode (G11t) of the first gate electrode (G11) of the first transistor (T1).
- the upper electrode (G11t) of the first gate electrode (G11) may overlap the first semiconductor layer (OACT1).
- the fourth electrode layer (250) may be the gate electrode (G2) of the second transistor (T2).
- the fourth electrode layer (250) may overlap the second semiconductor layer (OACT2).
- the third electrode layer (240) and the fourth electrode layer (250) may be provided in an island shape.
- the gate electrode (G3) of the third transistor (T3) may be a portion of the third gate line (GRL) that overlaps the second semiconductor layer (OACT2).
- the gate electrode (G4) of the fourth transistor (T4) may be a portion of the second gate line (GIL) overlapping the fourth semiconductor layer (OACT4).
- the gate electrode (G5) of the fifth transistor (T5) may be a portion of the fourth gate line (EML) overlapping the first semiconductor layer (OACT1).
- the gate electrode (G6) of the sixth transistor (T6) may be a portion of the fifth gate line (EMBL) overlapping the third semiconductor layer (OACT3).
- the gate electrode (G7) of the seventh transistor (T7) may be a portion of the second gate line (GIL) overlapping the third semiconductor layer (OACT3).
- a sixth insulating layer (116) may be arranged on a fifth insulating layer (115) to cover a fourth conductive layer, and a fifth conductive layer may be arranged on the sixth insulating layer (116).
- the fifth conductive layer may include a data line (DL) and connection electrodes (260, 261, 262, 263, 264, 265, 266, 267a, 267b, 268).
- the data line (DL) can be arranged to extend in the y direction for each circuit area.
- the data line (DL) can be electrically connected to the drain region (D2) of the second transistor (T2) through a contact hole (37) passing through (for example, penetrating) the fifth insulating layer (115) and the sixth insulating layer (116).
- the connecting electrode (260) may include a first region (260a) overlapping the second electrode layer (230) and the third electrode layer (240) and a second region (260b) protruding in the -y direction from the first region (260a).
- the connecting electrode (260) may electrically connect the source region (S1) of the first transistor (T1) to the fourth transistor (T4) and the sixth transistor (T6).
- the first region (260a) of the connecting electrode (260) can be electrically connected to the source region (S1) of the first transistor (T1) through a contact hole (31) passing through (for example, penetrating) the fifth insulating layer (115) and the sixth insulating layer (116).
- the first region (260a) of the connecting electrode (260) can be electrically connected to the second electrode layer (230) through a contact hole (32) passing through (for example, penetrating) the fourth insulating layer (114), the fifth insulating layer (115), and the sixth insulating layer (116).
- the second electrode layer (230) can be a source electrode electrically connected to the source region (S1) of the first transistor (T1).
- the second region (260b) of the connecting electrode (260) can be electrically connected to the drain region (D6) of the sixth transistor (T6) through a contact hole (33) passing through (for example, penetrating) the fifth insulating layer (115) and the sixth insulating layer (116).
- the second region (260b) of the connecting electrode (260) can be electrically connected to the drain region (D4) of the fourth transistor (T4) through a contact hole (34) passing through (for example, penetrating) the fifth insulating layer (115) and the sixth insulating layer (116).
- the connecting electrode (261) can be electrically connected to the gate electrode (G2) of the second transistor (T2) through a contact hole (38) passing through (for example, penetrating) the sixth insulating layer (116).
- the connecting electrode (261) can be electrically connected to the first gate line (GWL) through a contact hole (39) passing through (for example, penetrating) the sixth insulating layer (116).
- the connecting electrode (262) can be electrically connected to the source region (S3) of the third transistor (T3) through a contact hole (43) passing through (for example, penetrating) the fifth insulating layer (115) and the sixth insulating layer (116).
- the connecting electrode (262) can be electrically connected to the reference voltage line (VRL) through a contact hole (44) passing through (for example, penetrating) the fourth insulating layer (114), the fifth insulating layer (115), and the sixth insulating layer (116).
- the connecting electrode (263) can be electrically connected to the source region (S2) of the second transistor (T2) and the drain region (D3) of the third transistor (T3) through a contact hole (40) passing through (for example, penetrating) the fifth insulating layer (115) and the sixth insulating layer (116).
- the connecting electrode (263) can be electrically connected to the first electrode layer (220) through a contact hole (41) passing through (for example, penetrating) the third insulating layer (113), the fourth insulating layer (114), the fifth insulating layer (115), and the sixth insulating layer (116), and can be electrically connected to the lower electrode (G11b) of the first gate electrode (G11) of the first transistor (T1).
- the connecting electrode (263) is electrically connected to the third electrode layer (240) through a contact hole (42) passing through (for example, penetrating) the sixth insulating layer (116), and can be electrically connected to the upper electrode (G11t) of the first gate electrode (G11) of the first transistor (T1).
- the connecting electrode (264) can be electrically connected to the protrusion (PLb) of the driving voltage line (PL) through a contact hole (35) passing through (for example, penetrating) the third insulating layer (113), the fourth insulating layer (114), the fifth insulating layer (115), and the sixth insulating layer (116).
- the connecting electrode (264) can be electrically connected to the drain region (D5) of the fifth transistor (T5) through a contact hole (36) passing through (for example, penetrating) the fifth insulating layer (115) and the sixth insulating layer (116). Accordingly, the drain region (D5) of the fifth transistor (T5) can be electrically connected to the driving voltage line (PL).
- connection electrode (265) can be electrically connected to the source region (S6) of the sixth transistor (T6) and the drain region (D7) of the seventh transistor (T7) through a contact hole (45) passing through (for example, penetrating) the fifth insulating layer (115) and the sixth insulating layer (116).
- the connection electrode (265) can overlap a part of the repair line (RL).
- the connection electrode (265) is insulated from the repair line (RL), and if a defect occurs in the pixel circuit arranged in the corresponding circuit area in the future, it can be electrically connected to the repair line (RL).
- the connecting electrode (266) can be electrically connected to the source region (S4) of the fourth transistor (T4) through a contact hole (47) passing through (for example, penetrating) the fifth insulating layer (115) and the sixth insulating layer (116).
- the connecting electrode (266) can be connected to the first initialization voltage line (VL1) through a contact hole (46) passing through (for example, penetrating) the fourth insulating layer (114), the fifth insulating layer (115), and the sixth insulating layer (116).
- connection electrode (267a) arranged in the first circuit area (PCA1) can be electrically connected to the source area (S7) of the seventh transistor (T7) through a contact hole (48) passing through (for example, penetrating) the fifth insulating layer (115) and the sixth insulating layer (116).
- the connection electrode (267a) can be connected to the second-first initialization voltage line (VL21) through a contact hole (49) passing through (for example, penetrating) the fourth insulating layer (114), the fifth insulating layer (115), and the sixth insulating layer (116).
- connection electrodes (267b) arranged in each of the second circuit area (PCA2) and the third circuit area (PCA3) can be electrically connected to the source area (S7) of the corresponding seventh transistor (T7) through the corresponding contact holes (48') passing through (for example, penetrating) the fifth insulating layer (115) and the sixth insulating layer (116).
- the connection electrodes (267b) can be electrically connected to the second-second initialization voltage line (VL22) through the contact holes (49') passing through (for example, penetrating) the fourth insulating layer (114), the fifth insulating layer (115), and the sixth insulating layer (116).
- the connecting electrode (268) can be electrically connected to the 2-1 initialization voltage line (VL21) through a contact hole (50) passing through (for example, penetrating) the 4th insulating layer (114), the 5th insulating layer (115), and the 6th insulating layer (116).
- the connecting electrode (268) can be arranged in some of the 2nd circuit areas (PCA2).
- the first gate line (GWL), the second gate line (GIL), the third gate line (GRL), the fourth gate line (EML), the fifth gate line (EMBL), and the 2-1 initialization voltage line (VL21) extend in the x direction and can be arranged in the first circuit area (PCA1), the second circuit area (PCA2), and the third circuit area (PCA3).
- the 2-1 initialization voltage line (VL21) can overlap the repair line (RL).
- the main line (PLm) of the driving voltage line (PL) and the second electrode layer (230) overlapping therewith can form a second capacitor (C2).
- the third electrode layer (240) and the first region (260a) of the connection electrode (260) overlapping therewith can form a 1-1 capacitor (C1a).
- the first electrode layer (220) and the second electrode layer (230) overlapping therewith can form a 1-2 capacitor (C1b).
- the capacitance of the first capacitor (C1) can be the sum of the capacitance of the 1-1 capacitor (C1a) and the capacitance of the 1-2 capacitor (C1b).
- the capacitance can be increased (secured) without increasing the x-direction area of the first capacitor (C1).
- a seventh insulating layer (117) may be arranged over a fifth conductive layer covering a sixth insulating layer (116), and a sixth conductive layer may be arranged over the seventh insulating layer (117).
- the sixth conductive layer may include a plurality of vertical conductive lines and a connection electrode (270). For convenience of illustration, only the fifth conductive layer and some of the lower conductive layers are illustrated in FIGS. 18a to 18d.
- the vertical conductive lines may include a vertical drive voltage line (PLv), vertical initialization voltage lines, a common voltage line (EOL), and a vertical reference voltage line (VRLv).
- the vertical initialization voltage lines may include a first vertical initialization voltage line (VL1v), a second-first vertical initialization voltage line (VL21v), and a second-second vertical initialization voltage line (VL22v).
- the vertical drive voltage line (PLv), the vertical initialization voltage lines, the common voltage line (EOL), and the vertical reference voltage line (VRLv) may each extend in the y direction and may be spaced apart from each other along the x direction in the first circuit area (PCA1), the second circuit area (PCA2), and the third circuit area (PCA3).
- a vertical drive voltage line (PLv) one of the first vertical initialization voltage line (VL1v), the second-first vertical initialization voltage line (VL21v), the second-second vertical initialization voltage line (VL22v), and the vertical reference voltage line (VRLv), and a common voltage line (EOL) may be sequentially and repeatedly arranged along the x direction.
- the vertical conductive lines may be arranged in the following order: a vertical drive voltage line (PLv), a first vertical initialization voltage line (VL1v), a common voltage line (EOL), a vertical drive voltage line (PLv), a second-first vertical initialization voltage line (VL21v), a common voltage line (EOL), a vertical drive voltage line (PLv), a second-second vertical initialization voltage line (VL22v), and a common voltage line (EOL).
- the vertical conductive lines can be electrically connected to horizontal conductive lines extending in the x direction.
- the horizontal conductive lines can include a driving voltage line (PL), a first initialization voltage line (VL1), a second-first initialization voltage line (VL21), a second-second initialization voltage line (VL22), and a reference voltage line (VRL).
- PL driving voltage line
- VL1 first initialization voltage line
- VL21 second-first initialization voltage line
- VL22 second-second initialization voltage line
- VRL reference voltage line
- Figure 18a illustrates an example in which a vertical driving voltage line (PLv), a second-first vertical initialization voltage line (VL21v), and a common voltage line (EOL) are sequentially arranged along the x direction in a unit circuit area (PCAu).
- PLv vertical driving voltage line
- VL21v second-first vertical initialization voltage line
- EOL common voltage line
- a vertical driving voltage line (PLv) may be arranged at a boundary between a third circuit area (PCA3) and a first circuit area (PCA1), and a second-first vertical initialization voltage line (VL21v) may be arranged at a boundary between a first circuit area (PCA1) and a second circuit area (PCA2).
- a common voltage line (EOL) may be arranged at a boundary between a second circuit area (PCA2) and a third circuit area (PCA3).
- the vertical driving voltage line (PLv) may overlap the data line (DL) arranged in the first circuit area (PCA1).
- the vertical driving voltage line (PLv) may include a protrusion (PLvp) that protrudes in the -x direction and overlaps the third circuit area (PCA3).
- the protrusion (PLvp) may be electrically connected to a connection electrode (264) arranged in the third circuit area (PCA3) through a contact hole (62) passing through (for example, penetrating) the seventh insulating layer (117). Since the connection electrode (264) is electrically connected to the driving voltage line (PL), the vertical driving voltage line (PLv) is electrically connected to the driving voltage line (PL), and the driving voltage line (PL) may have a mesh structure in the display area (DA).
- the 2-1 vertical initialization voltage line (VL21v) may overlap a data line (DL) arranged in the 2nd circuit area (PCA2).
- the 2-1 vertical initialization voltage line (VL21v) may include a protrusion (VL21vp) that protrudes in the +x direction and overlaps the 2nd circuit area (PCA2).
- the protrusion (VL21vp) may be electrically connected to a connection electrode (268) arranged in the 2nd circuit area (PCA2) through a contact hole (63) passing through (for example, penetrating) the 7th insulating layer (117).
- the connecting electrode (268) is electrically connected to the 2-1 initialization voltage line (VL21)
- the 2-1 vertical initialization voltage line (VL21v) is electrically connected to the 2-1 initialization voltage line (VL21)
- the 2-1 initialization voltage line (VL21) may have a mesh structure in the display area (DA).
- the common voltage line (EOL) may overlap the data line (DL) arranged in the third circuit area (PCA3).
- the common voltage lines (EOL) may be electrically connected to the common voltage supply line (13) arranged in the peripheral area (PA).
- the counter electrode may be electrically connected to the common voltage lines (EOL) at a certain interval in the display area (DA).
- Figure 18b illustrates an example in which a vertical driving voltage line (PLv), a first vertical initialization voltage line (VL1v), and a common voltage line (EOL) are sequentially arranged in the x direction in a unit circuit area (PCAu).
- PLv vertical driving voltage line
- VL1v first vertical initialization voltage line
- EOL common voltage line
- the first vertical initialization voltage line (VL1v) may overlap the data line (DL) arranged in the second circuit area (PCA2).
- the first vertical initialization voltage line (VL1v) may include a protrusion (VL1vp) that protrudes in the -x direction and overlaps the first circuit area (PCA1).
- the protrusion (VL1vp) may be electrically connected to a connection electrode (266) arranged in the first circuit area (PCA1) through a contact hole (64) passing through (for example, penetrating) the seventh insulating layer (117).
- connection electrode (266) is electrically connected to the first initialization voltage line (VL1)
- first vertical initialization voltage line (VL1v) is electrically connected to the first initialization voltage line (VL1)
- the first initialization voltage line (VL1) may have a mesh structure in the display area (DA).
- Figure 18c illustrates an example in which a vertical driving voltage line (PLv), a vertical reference voltage line (VRLv), and a common voltage line (EOL) are sequentially arranged along the x direction in a unit circuit area (PCAu).
- PLv vertical driving voltage line
- VRLv vertical reference voltage line
- EOL common voltage line
- the vertical reference voltage line (VRLv) may overlap the data line (DL) arranged in the second circuit area (PCA2).
- the vertical reference voltage line (VRLv) may include a protrusion (VRLvp) that protrudes in the +x direction and overlaps the second circuit area (PCA2).
- the protrusion (VRLvp) may be electrically connected to a connection electrode (262) arranged in the second circuit area (PCA2) through a contact hole (65) passing through (for example, penetrating) the seventh insulating layer (117).
- connection electrode (262) is electrically connected to the reference voltage line (VRL)
- the vertical reference voltage line (VRLv) is electrically connected to the reference voltage line (VRL)
- the reference voltage line (VRL) may have a mesh structure in the display area (DA).
- Figure 18d illustrates an example in which a vertical driving voltage line (PLv), a second-second vertical initialization voltage line (VL22v), and a common voltage line (EOL) are sequentially arranged along the x direction in a unit circuit area (PCAu).
- PLv vertical driving voltage line
- VL22v second-second vertical initialization voltage line
- EOL common voltage line
- the 2-2 vertical initialization voltage line (VL22v) may overlap with the data line (DL) arranged in the 2nd circuit area (PCA2).
- the 2-2 vertical initialization voltage line (VL22v) may include a protrusion (VL22vp) that protrudes in the +x direction and overlaps with the 2nd circuit area (PCA2).
- the protrusion (VL22vp) may be electrically connected to a connection electrode (267b) arranged in the 2nd circuit area (PCA2) through a contact hole (66) passing through (for example, penetrating) the 7th insulating layer (117).
- the connecting electrode (267b) is electrically connected to the 2-2 initialization voltage line (VL22)
- the 2-2 vertical initialization voltage line (VL22v) is electrically connected to the 2-2 initialization voltage line (VL22)
- the 2-2 initialization voltage line (VL22) can have a mesh structure in the display area (DA).
- voltage supply lines may be further arranged in the peripheral area (PA) electrically connected to the horizontal conductive lines and/or the vertical conductive lines.
- the voltage supply lines may be arranged on at least one of the upper side, lower side, left side, and right side of the display area (PA).
- the corresponding connection electrodes of the first circuit area (PCA1), the second circuit area (PCA2), and the third circuit area (PCA3) can have various shapes and positions depending on the positions of the conductive lines arranged in the circuit areas.
- Fig. 20 illustrates pixel circuits arranged in the first circuit area (PCA1), the second circuit area (PCA2), and the third circuit area (PCA3) illustrated in Fig. 18a.
- Fig. 21 is an enlarged view of part A of Fig. 6a, showing pixels arranged at the edge of the display area (DA) (e.g., pixels arranged in the first column) and conductive layers arranged around them.
- DA display area
- the semiconductor pattern (CP) may be arranged in each row to extend in the x direction in the display area (DA), and the main line (PLm) of the driving voltage line (PL) may be arranged in each row to extend in the x direction and overlap the semiconductor pattern (CP).
- an end of the first conductive layer (210), an end of the semiconductor pattern (CP), an end of the main line (PLm) of the driving voltage line (PL), and a protrusion (PLvp) of the vertical driving voltage line (PLv) may be arranged to overlap in sequence in the z direction at an edge of the display area (DA), and may be electrically connected to each other through a connection electrode (269).
- the connecting electrode (269) may be arranged in a layer (for example, within or on the layer) between an end of a main line (PLm) of a driving voltage line (PL) and a semiconductor pattern (CP).
- the connecting electrode (269) may be arranged between the sixth insulating layer (116) and the seventh insulating layer (117).
- the protrusion (PLvp) of the vertical driving voltage line (PLv) may be electrically connected to the connecting electrode (269) through a contact hole (81) passing through (for example, penetrating) the seventh insulating layer (117).
- the connecting electrode (269) may be electrically connected to an end of the main line (PLm) of the driving voltage line (PL) through a contact hole (82) passing through (for example, penetrating) the third to sixth insulating layers (113, 114, 115, and 116).
- the connecting electrode (269) can be electrically connected to an end of the semiconductor pattern (CP) through a contact hole (83) passing through (for example, penetrating) the second to sixth insulating layers (112, 113, 114, 115, 116).
- the connecting electrode (269) can be electrically connected to an end of the first conductive layer (210) through a contact hole (84) passing through (for example, penetrating) the first to sixth insulating layers (111, 112, 113, 114, 115, 116).
- the semiconductor pattern (CP), the main line (PLm) of the driving voltage line (PL) and the first conductive layer (210) may correspond to the semiconductor layer (e.g., the semiconductor pattern (CP)), the top gate electrode (e.g., the upper conductive layer (DCLt)) and the bottom gate electrode (e.g., the lower conductive layer (DCLb)) of the four-terminal silicon thin film transistors (TRs) provided for each row as described above with reference to FIGS. 6A to 6C, respectively.
- the vertical driving voltage line (PLv) may correspond to the signal line (SCL) supplied with the driving voltage (ELVDD) described above with reference to FIGS. 6A to 6C.
- a semiconductor pattern (CP) overlaps a part of a pixel circuit (PCa) and is arranged in a display area (DA), and four-terminal silicon thin film transistors (TRs) including the semiconductor pattern (CP) may be provided for each row, overlapping a part of the pixel circuit (PCa).
- the four-terminal silicon thin film transistors (TRs) may be arranged to overlap a first transistor (T1), a first capacitor (C1), and a second capacitor (C2) of the pixel circuit (PCa).
- An eighth insulating layer (118) is arranged over a seventh insulating layer (117) to cover a sixth conductive layer, and an organic light-emitting diode (OLED) as a display element may be arranged on the eighth insulating layer (118).
- the organic light-emitting diode (OLED) may include a pixel electrode (311), a counter electrode (315), and an intermediate layer between the pixel electrode (311) and the counter electrode (315).
- the pixel electrode (311) can be connected to the first transistor (T1) by being electrically connected to the connection electrode (270), which is a lower conductive pattern, through the contact hole (71) of the eighth insulating layer (118).
- the pixel electrode (311) connected to the pixel circuit of the first pixel (PX1) can be electrically connected to the connection electrode (270) arranged in the first circuit area (PCA1), thereby being connected to the first transistor (T1).
- the pixel electrode (311) connected to the pixel circuit of the second pixel (PX2) can be electrically connected to the connection electrode (270) arranged in the second circuit area (PCA2), thereby being connected to the first transistor (T1).
- the pixel electrode (311) connected to the pixel circuit of the third pixel (PX3) can be connected to the first transistor (T1) by being electrically connected to the connection electrode (270) arranged in the third circuit area (PCA3).
- a ninth insulating layer (119) which is a pixel definition layer that covers the edge of the pixel electrode (311), may be placed on the pixel electrode (311).
- An opening (119OP) that exposes a portion of the pixel electrode (311) and defines a light-emitting area may be defined in the ninth insulating layer (119).
- the ninth insulating layer (119) may be a single-layer or multi-layer organic insulating layer and/or inorganic insulating layer.
- the intermediate layer may include a light-emitting layer (313) and a first functional layer over the light-emitting layer (313) and/or a second functional layer under the light-emitting layer (313).
- the first functional layer may be a hole transport layer (HTL).
- the first functional layer may include a hole injection layer (HIL) and a hole transport layer (HTL).
- the second functional layer may include an electron transport layer (ETL) and/or an electron injection layer (EIL).
- the first functional layer and the second functional layer may be formed integrally to correspond to a plurality of organic light-emitting diodes (OLEDs) included in the display area (DA).
- OLEDs organic light-emitting diodes
- OLED organic light-emitting diode
- PCA1 first circuit area
- OLED organic light-emitting diode
- PCA2 organic light-emitting diode
- PCA3 organic light-emitting diode
- FIG. 24 shows the pixel electrode (311) and the light-emitting area (EA) of each of the first pixel (PX1), the second pixel (PX2), and the third pixel (PX3).
- the light-emitting area (EA) is a region where the light-emitting layer (313) of the organic light-emitting diode (OLED) is arranged.
- the light-emitting area (EA) can be defined by the opening (119OP) of the ninth insulating layer (119). Since the light-emitting layer (313) is arranged on the pixel electrode (311), the arrangement of the light-emitting area (EA) illustrated in FIG. 24 can represent the arrangement of the pixel electrode or the arrangement of the pixel.
- the emitting area (EA) can have a polygonal shape such as a square or octagon, a circle, an oval, etc.
- the polygon can also include a shape with rounded corners (vertices).
- the light-emitting area (EA) of the first pixel (PX1) and the light-emitting area (EA) of the second pixel (PX2) may be arranged adjacent to each other in the y direction.
- the light-emitting area (EA) of the third pixel (PX3) may be arranged adjacent to the light-emitting area (EA) of the first pixel (PX1) and the light-emitting area (EA) of the second pixel (PX2) in the x direction.
- the light-emitting area (EA) of the first pixel (PX2) and the light-emitting area (EA) of the second pixel (PX2) may be arranged alternately in the y direction along the imaginary straight line (ISL1), and the light-emitting area (EA) of the third pixel (PX3) may be arranged repeatedly in the y direction along the imaginary straight line (ISL2).
- the lengths in the x direction and the lengths in the y direction of the light-emitting area (EA) of the first pixel (PX1), the light-emitting area (EA) of the second pixel (PX2), and the light-emitting area (EA) of the third pixel (PX3) may be the same as or substantially the same as, or different from, each other.
- the light-emitting area (EA) of the first pixel (PX1) may have a square shape
- the light-emitting areas (EA) of the second pixel (PX2) and the light-emitting areas (EA) of the third pixel (PX3) may have rectangular shapes having a long side extending in the y direction.
- the length in the y direction of the light-emitting area (EA) of the third pixel (PX3) may be the same as or greater than the sum of the lengths in the y direction of the light-emitting area (EA) of the first pixel (PX1) and the lengths in the y direction of the light-emitting area (EA) of the second pixel (PX2).
- the first light-emitting area (EA) of the first pixel (PX1), the second light-emitting area (EA) of the second pixel (PX2), and the third light-emitting area (EA) of the third pixel (PX3) may have different areas (e.g., sizes).
- the light-emitting area (EA) of the third pixel (PX3) may have a larger area than the light-emitting area (EA) of the first pixel (PX1).
- the light-emitting area (EA) of the third pixel (PX3) may have a larger area than the light-emitting area (EA) of the second pixel (PX2).
- the light-emitting area (EA) of the second pixel (PX2) may have a larger area than the light-emitting area (EA) of the first pixel (PX1).
- the counter electrode (315) can be formed integrally to correspond to a plurality of organic light-emitting diodes (OLEDs) included in the display area (DA).
- OLEDs organic light-emitting diodes
- Fig. 26 is a schematic diagram showing transistors and capacitors, etc. of the pixel shown in Fig. 9a.
- Fig. 27 is a schematic diagram showing conductive layers at the edge of the display area.
- Fig. 28 is a cross-sectional view taken along line X-X' of Fig. 27.
- Fig. 27 is an enlarged view of part A of Fig. 6a.
- FIGS. 26 to 28 the same reference numerals are used for components that are identical or substantially identical to those described above with reference to FIGS. 10 to 25, and a duplicate description thereof may not be repeated.
- FIG. 26 reference numerals for some components that are identical or substantially identical to those described above with reference to FIGS. 10 to 25 may be omitted.
- the display device illustrated in FIGS. 26 and 27 may be identical or substantially identical (or similar) to the display device described above with reference to FIGS. 20 and 21, except that the first conductive layer (210) is omitted in the display device described above with reference to FIGS. 10 to 25.
- the first conductive layer (210) is omitted in the display device described above with reference to FIGS. 10 to 25.
- a semiconductor pattern (CP) may extend in the x direction and be arranged in each row in the display area (DA).
- a main line (PLm) of a driving voltage line (PL) may extend in the x direction and be arranged in each row so as to overlap the semiconductor pattern (CP).
- an end of the semiconductor pattern (CP), an end of the main line (PLm) of the driving voltage line (PL), and a protrusion (PLvp) of a vertical driving voltage line (PLv) may be arranged so as to overlap in the z direction in sequence, and may be electrically connected to each other through a connection electrode (269).
- the protrusion (PLvp) of the vertical driving voltage line (PLv) can be electrically connected to the connection electrode (269) through a contact hole (81) passing through (for example, penetrating) the seventh insulating layer (117).
- the connection electrode (269) can be electrically connected to an end of the main line (PLm) of the driving voltage line (PL) through a contact hole (82) passing through (for example, penetrating) the third to sixth insulating layers (113, 114, 115, 116).
- the connection electrode (269) can be electrically connected to an end of the semiconductor pattern (CP) through a contact hole (83) passing through (for example, penetrating) the second to sixth insulating layers (112, 113, 114, 115, 116).
- the main line (PLm) of the semiconductor pattern (CP) and the driving voltage line (PL) may correspond to a semiconductor layer (e.g., the semiconductor pattern (CP)) and a gate electrode (e.g., the conductive layer (DCL)) of a three-terminal silicon thin film transistor (TRs) provided in each row illustrated in FIGS. 4a to 4c, respectively.
- the vertical driving voltage line (PLv) may correspond to a signal line (SCL) supplied with the driving voltage (ELVDD) described above with reference to FIGS. 4a to 4c.
- a semiconductor pattern (CP) and three-terminal silicon thin film transistors (TRs) including the semiconductor pattern (CP) may be provided for each row, overlapping a part of a pixel circuit (PCa).
- the three-terminal silicon thin film transistors (TRs) may be arranged to overlap a first transistor (T1), a first capacitor (C1), and a second capacitor (C2) of the pixel circuit (PCa).
- FIG. 29 is a schematic diagram showing transistors and capacitors, etc. of the pixel illustrated in FIG. 9a according to one embodiment.
- FIGS. 30 to 36 are schematic diagrams showing elements of the pixel circuit illustrated in FIG. 29a, layer by layer.
- FIG. 37 is a layout diagram showing only a portion of the configuration of FIG. 29.
- FIG. 38 is a cross-sectional view taken along line XI-XI' of FIG. 29.
- FIG. 38 is a cross-sectional view of some elements arranged in the second circuit area (PCA2).
- PCA2 second circuit area
- FIGS. 29 to 38 the same reference numerals are used for components that are identical or substantially identical to those described above with reference to FIGS. 10 to 25, and thus, a duplicate description thereof may not be repeated.
- FIG. 29 reference numerals for some components that are identical or substantially identical to those described above with reference to FIGS. 10 to 25 may be omitted.
- the display device illustrated in FIG. 29 may be identical or substantially identical (or similar) to the components of the display device described above with reference to FIG. 20, except that the first conductive layer (210) is omitted and the semiconductor pattern (CP) and the driving voltage line (PL) are changed in the display device described above with reference to FIG. 20.
- CP semiconductor pattern
- PL driving voltage line
- a first insulating layer (111) is disposed on a substrate (100), and a semiconductor pattern (CP) including a silicon semiconductor may be disposed on the first insulating layer (111), as illustrated in FIG. 30.
- the semiconductor pattern (CP) may extend in the x direction and may be disposed across the first circuit area (PCA1), the second circuit area (PCA2), and the third circuit area (PCA3).
- the semiconductor pattern (CP) may correspond to the semiconductor pattern (CP) described above with reference to FIGS. 5A and 5B.
- the semiconductor pattern (CP) may include a protrusion (CPp) protruding in the -y direction for each circuit area.
- a semiconductor pattern (CP) may be covered on a first insulating layer (111), a second insulating layer (112) may be arranged, and a second conductive layer may be arranged on the second insulating layer (112).
- the second conductive layer may include a first electrode layer (220), a driving voltage line (PL), and a second-second initialization voltage line (VL22).
- the driving voltage line (PL) and the second-second initialization voltage line (VL22) may extend in the x direction and may be arranged to cross the first circuit area (PCA1), the second circuit area (PCA2), and the third circuit area (PCA3).
- the driving voltage line (PL) may include a plurality of sub-lines spaced apart from each other (e.g., separated) at an appropriate interval (e.g., a predetermined or preset interval) in the x direction, as illustrated in part B of FIG. 31.
- the driving voltage line (PL) may be separated between the second circuit area (PCA2) and the third circuit area (PCA3), and part B may be positioned between the second circuit area (PCA2) and the third circuit area (PCA3).
- Each sub-line of the driving voltage line (PL) may include a main line (PLm) extending in the x direction and a protrusion (PLc) protruding in the -y direction from the main line (PLm).
- the protrusions (PLc) can be arranged in each circuit area.
- the plurality of sub-lines can correspond to the plurality of conductive electrodes (DCE) described above with reference to FIGS. 5a and 5b.
- the first electrode layer (220) can be provided in an island shape.
- a third insulating layer (113) may be arranged on a second insulating layer (112) to cover a second conductive layer, and a third conductive layer may be arranged on the third insulating layer (113).
- the third conductive layer may include a second electrode layer (230), a reference voltage line (VRL), and a first initialization voltage line (VL1).
- the third conductive layer may further include a repair line (RL).
- a fourth insulating layer (114) is arranged over a third conductive layer on a third insulating layer (113), and a semiconductor layer (OACT) including an oxide semiconductor may be arranged on the fourth insulating layer (114) as illustrated in Fig. 33.
- the semiconductor layer (OACT) may include a first semiconductor layer (OACT1), a second semiconductor layer (OACT2), a third semiconductor layer (OACT3), and a fourth semiconductor layer (OACT4).
- a fifth insulating layer (115) may be arranged on a fourth insulating layer (114) to cover a semiconductor layer (OACT), and a fourth conductive layer may be arranged on the fifth insulating layer (115).
- the fourth conductive layer may include a third electrode layer (240), a fourth electrode layer (250), a first gate line (GWL), a second gate line (GIL), a third gate line (GRL), a fourth gate line (EML), a fifth gate line (EMBL), and a 2-1 initialization voltage line (VL21).
- Some of the third electrode layer (240), the fourth electrode layer (250), the first gate line (GWL), the second gate line (GIL), the third gate line (GRL), the fourth gate line (EML), and the fifth gate line (EMBL) may include gate electrodes (G1 to G7) of the first to seventh transistors (T1 to T7).
- a sixth insulating layer (116) may be arranged over a fourth conductive layer on a fifth insulating layer (115), and a fifth conductive layer may be arranged over the sixth insulating layer (116).
- the fifth conductive layer may include a data line (DL) and connection electrodes (260, 261, 262, 263, 264, 265, 266, 267a, 267b, 268).
- a seventh insulating layer (117) may be arranged on the sixth insulating layer (116) to cover a fifth conductive layer, and a sixth conductive layer may be arranged on the seventh insulating layer (117).
- the sixth conductive layer may include a plurality of vertical conductive lines and a connection electrode (270).
- the plurality of vertical conductive lines may include a vertical driving voltage line (PLv), vertical initialization voltage lines, a common voltage line (EOL), and a vertical reference voltage line (VRLv), as illustrated in FIGS. 18a to 18d.
- the vertical initialization voltage lines may include a first vertical initialization voltage line (VL1v), a second-first vertical initialization voltage line (VL21v), and a second-second vertical initialization voltage line (VL22v).
- FIG. 36 illustrates the vertical driving voltage line (PLv), the second-first vertical initialization voltage line (VL21v), and the common voltage line (EOL).
- the 6th conductive layer is covered on top of the 7th insulating layer (117), and the 8th insulating layer (118) is arranged, and an organic light-emitting diode (OLED) can be arranged as a display element on the 8th insulating layer (118).
- OLED organic light-emitting diode
- connection electrode (264) can be electrically connected to a protrusion (CPp) of the semiconductor pattern (CP) through a contact hole (52) passing through (e.g., penetrating) the second insulating layer (112), the third insulating layer (113), the fourth insulating layer (114), the fifth insulating layer (115), and the sixth insulating layer (116).
- the connection electrode (264) can be electrically connected to a drain region (D5) of the fifth transistor (T5), which is a part of the first semiconductor layer (OACT1), through a contact hole (53) passing through (e.g., penetrating) the fifth insulating layer (115) and the sixth insulating layer (116).
- the connecting electrode (264) can be electrically connected to the protrusion (PLc) of the driving voltage line (PL) through a contact hole (54) passing through (for example, penetrating) the third insulating layer (113), the fourth insulating layer (114), the fifth insulating layer (115), and the sixth insulating layer (116).
- the protrusion (PLvp) of the vertical driving voltage line (PLv) can be electrically connected to the connecting electrode (264) of the third circuit area (PCA3) through a contact hole (62) passing through (for example, penetrating) the seventh insulating layer (117). As illustrated in FIG.
- the end of the semiconductor pattern (CP) and the protrusion (PLvp) of the vertical driving voltage line (PLv) can be electrically connected around the pixels of the first row and the pixels of the last row arranged at the edge of the display area (DA). Accordingly, multiple sub-lines of the semiconductor pattern (CP) and the driving voltage line (PL) can be supplied with the driving voltage (ELVDD).
- the sub-lines of the semiconductor pattern (CP) and the driving voltage line (PL) may correspond to the semiconductor layer (e.g., the semiconductor pattern (CP)) and the gate electrode (e.g., the conductive electrode (DCE)) of each of the plurality of series-connected silicon thin film transistors (TRs) provided for each row as described above with reference to FIGS. 5A to 5C, respectively.
- the vertical driving voltage line (PLv) may correspond to the signal line (SCL) supplied with the driving voltage (ELVDD) as described above with reference to FIGS. 5A to 5C.
- the B portions between the sub-lines of the driving voltage line (PL) of FIG. 37 may correspond to the node (N) as described above with reference to FIGS. 5B and 5C.
- Fig. 39 is a schematic diagram showing transistors and capacitors, etc. of the pixel illustrated in Fig. 9a according to one embodiment.
- Fig. 40 is a cross-sectional view taken along line XII-XII' of Fig. 39.
- FIG. 39 the same reference numerals are used for components that are identical or substantially identical to those described above with reference to FIGS. 10 to 25, and thus, a duplicate description thereof may not be repeated.
- reference numerals for some components that are identical or substantially identical to those described above with reference to FIGS. 10 to 25 may be omitted.
- the display device illustrated in FIG. 39 may be identical or substantially identical (or similar) to the components of the display device described above with reference to FIG. 20, except that the first conductive layer (210) is omitted from the display device described above with reference to FIG. 20 and the components in the region C are added.
- the first conductive layer (210) is omitted from the display device described above with reference to FIG. 20 and the components in the region C are added.
- a second semiconductor pattern (CP2) which is an additional semiconductor pattern, may be further provided between adjacent rows of the display area (DA).
- the second semiconductor pattern (CP2) may be arranged in a C region between a 2-1 initialization voltage line (VL21) of an arbitrary row and a first gate line (GWL) of the next row.
- a plurality of second semiconductor patterns (CP2), a pair of first signal lines (SCL1) and second signal lines (SLC2), and a conductive layer (DCL) can be arranged.
- a plurality of second semiconductor patterns (CP2) may be spaced apart from each other in the x direction on a substrate (100).
- a conductive layer (DCL) may be disposed on a second insulating layer (112) so as to extend in the x direction across the plurality of second semiconductor patterns (CP2).
- the conductive layer (DCL) may be disposed on the plurality of second semiconductor patterns (CP2) to overlap the second semiconductor patterns (CP2).
- a pair of first signal lines (SCL1) and second signal lines (SCL2) may be disposed on a third insulating layer (113) so as to extend in the x direction.
- the first signal line (SCL1) may overlap one end of the plurality of second semiconductor patterns (CP2).
- the second signal line (SCL2) may overlap the other end of the plurality of second semiconductor patterns (CP2).
- Connection electrodes (281, 282) can be placed on the sixth insulating layer (116).
- connection electrode (281) can be electrically connected to one end of the second semiconductor pattern (CP2) through a contact hole (61) passing through (e.g., penetrating) the second insulating layer (112), the third insulating layer (113), the fourth insulating layer (114), the fifth insulating layer (115), and the sixth insulating layer (116).
- the connection electrode (281) can be electrically connected to the first signal line (SCL1) through a contact hole (62) passing through (e.g., penetrating) the fourth insulating layer (114), the fifth insulating layer (115), and the sixth insulating layer (116).
- the connecting electrode (282) can be electrically connected to the other end of the second semiconductor pattern (CP2) through a contact hole (64) passing through (for example, penetrating) the second insulating layer (112), the third insulating layer (113), the fourth insulating layer (114), the fifth insulating layer (115), and the sixth insulating layer (116).
- the connecting electrode (282) can be electrically connected to the second signal line (SCL2) through a contact hole (63) passing through (for example, penetrating) the fourth insulating layer (114), the fifth insulating layer (115), and the sixth insulating layer (116).
- the second semiconductor pattern (CP2) can be formed at the same time or substantially simultaneously with the semiconductor pattern (CP) when the semiconductor pattern (CP) is formed in the circuit area.
- the conductive layer (DCL) can be formed at the same time or substantially simultaneously with the second conductive layer when the second conductive layer is formed in the circuit area.
- the first signal line (SCL1) and the second signal line (SCL2) can be formed at the same time or substantially simultaneously with the third conductive layer when the third conductive layer is formed in the circuit area.
- the connection electrodes (281, 282) can be formed at the same time or substantially simultaneously with the fifth conductive layer when the fifth conductive layer is formed in the circuit area.
- the two ends (e.g., opposite ends) of the conductive layer (DCL) are connected to a first gate driving circuit (DRV1) and a second gate driving circuit (DRV2), and can receive a gate signal (GS) from the first gate driving circuit (DRV1) and the second gate driving circuit (DRV2).
- the gate signal (GS) can be the same as, or substantially the same as, or different from, the gate signals supplied to the pixel circuit.
- the first signal line (SCL1) and the second signal line (SCL2) can be electrically connected to the vertical driving voltage line (PLv) at the edge of the display area (DA) or electrically connected to the driving voltage supply line (11) of the peripheral area (PA). Accordingly, the second semiconductor patterns (CP2) can be supplied with the driving voltage (ELVDD).
- the second semiconductor pattern (CP2) and the conductive layer (DCL) may correspond to the semiconductor layer (e.g., the semiconductor pattern (CP)) and the gate electrode (e.g., the conductive layer (DCL)) of each of the plurality of parallel-connected silicon thin film transistors (TRds) provided for each row described with reference to FIGS. 7a to 7c.
- the vertical driving voltage line (PLv) may correspond to the signal line (SCL) supplied with the driving voltage (ELVDD) described with reference to FIGS. 7a to 7c.
- a display device (1) may be provided with a semiconductor pattern (CP) as a component of non-operating silicon thin film transistors (TRs) arranged in a circuit area and a second semiconductor pattern (CP2) as a component of operating silicon thin film transistors (TRds) arranged around the circuit area in a display area (DA).
- CP semiconductor pattern
- CP2 second semiconductor pattern
- TRds operating silicon thin film transistors
- the display device (1) illustrated in FIG. 39 has a structure in which a C region is added to the pixel circuit illustrated in FIG. 25, but the present disclosure is not limited thereto.
- the display device (1) may have a C region added to the pixel circuit illustrated in FIG. 20 or FIG. 29, or the semiconductor pattern (CP) may be omitted in the circuit region so that a non-operating silicon thin film transistor (TRs) is not formed, and an operating silicon thin film transistor (TRds) including a second semiconductor pattern (CP2) as a component only in the C region may be formed.
- FIG. 41 is a schematic diagram showing transistors and capacitors, etc. of the pixel shown in FIG. 9a according to one embodiment.
- FIGS. 42 and 43 are schematic diagrams showing some elements of the pixel circuit shown in FIG. 41.
- FIG. 44 is a layout diagram showing an excerpt of some of the configuration of FIG. 41.
- FIG. 45 is a cross-sectional view taken along line XIII-XIII' of FIG. 41.
- FIG. 45 is a cross-sectional view of some elements arranged in the third circuit area (PCA3).
- PCA3 third circuit area
- FIG. 41 the same reference numerals are used for components that are identical or substantially identical to those described above with reference to FIGS. 10 to 25, and thus, a duplicate description thereof may not be repeated.
- reference numerals for some components that are identical or substantially identical to those described above with reference to FIGS. 10 to 25 may be omitted.
- the display device illustrated in FIG. 41 may be identical or substantially identical (or similar) to the components of the display device described above with reference to FIG. 20, except that the first conductive layer (210) is omitted and some components are changed in the display device described above with reference to FIG. 20.
- the first conductive layer (210) is omitted and some components are changed in the display device described above with reference to FIG. 20.
- a first insulating layer (111) is disposed on a substrate (100), and a semiconductor pattern (CP) including a silicon semiconductor may be disposed on the first insulating layer (111), as illustrated in FIG. 42.
- the semiconductor pattern (CP) may extend in the x direction and may be disposed across a first circuit area (PCA1), a second circuit area (PCA2), and a third circuit area (PCA3).
- the semiconductor pattern (CP) may include a protrusion (CPpa) protruding in the +y direction and a protrusion (CPpb) protruding in the -y direction for each circuit area.
- a semiconductor pattern (CP) may be covered on a first insulating layer (111), a second insulating layer (112) may be arranged, and a second conductive layer may be arranged on the second insulating layer (112).
- the second conductive layer may include a first electrode layer (220), a fifth electrode layer (225), and a second-second initialization voltage line (VL22).
- the first electrode layer (220) and the fifth electrode layer (225) may each be provided in an island shape.
- the second-second initialization voltage line (VL22) may extend in the x direction and may be arranged to cross the first circuit area (PCA1), the second circuit area (PCA2), and the third circuit area (PCA3).
- the fifth electrode layer (225) may include a protrusion (225p) protruding from the main body in the -y direction.
- the protrusion (225p) may be arranged in each circuit area.
- a third insulating layer (113) may be arranged on a second insulating layer (112) to cover a second conductive layer, and a third conductive layer may be arranged on the third insulating layer (113).
- the third conductive layer may include a second electrode layer (230), a reference voltage line (VRL), and a first initialization voltage line (VL1).
- the third conductive layer may further include a repair line (RL).
- a fourth insulating layer (114) is arranged over a third conductive layer on a third insulating layer (113), and a semiconductor layer (OACT) including an oxide semiconductor may be arranged on the fourth insulating layer (114) as illustrated in Fig. 14.
- the semiconductor layer (OACT) may include a first semiconductor layer (OACT1), a second semiconductor layer (OACT2), a third semiconductor layer (OACT3), and a fourth semiconductor layer (OACT4).
- a fifth insulating layer (115) may be arranged on a fourth insulating layer (114) to cover a semiconductor layer (OACT), and a fourth conductive layer may be arranged on the fifth insulating layer (115).
- the fourth conductive layer may include a third electrode layer (240), a fourth electrode layer (250), a first gate line (GWL), a second gate line (GIL), a third gate line (GRL), a fourth gate line (EML), a fifth gate line (EMBL), and a 2-1 initialization voltage line (VL21).
- Some of the third electrode layer (240), the fourth electrode layer (250), the first gate line (GWL), the second gate line (GIL), the third gate line (GRL), the fourth gate line (EML), and the fifth gate line (EMBL) may include gate electrodes (G1 to G7) of the first to seventh transistors (T1 to T7).
- a sixth insulating layer (116) may be arranged on a fifth insulating layer (115) to cover a fourth conductive layer, and a fifth conductive layer may be arranged on the sixth insulating layer (116).
- the fifth conductive layer may include a data line (DL) and connection electrodes (260, 261, 262, 263, 264, 265, 266, 267a, 267b, 268).
- a seventh insulating layer (117) may be arranged over a fifth conductive layer on top of a sixth insulating layer (116), and a sixth conductive layer may be arranged over the seventh insulating layer (117).
- the sixth conductive layer may include a plurality of vertical conductive lines and a connection electrode (270).
- a sixth conductive layer is covered on the seventh insulating layer (117), and an eighth insulating layer (118) is disposed, and an organic light-emitting diode (OLED) as a display element may be disposed on the eighth insulating layer (118).
- the plurality of vertical conductive lines may include a vertical driving voltage line (PLv), vertical initialization voltage lines, a common voltage line (EOL), and a vertical reference voltage line (VRLv), as illustrated in FIGS. 18a to 18d.
- the vertical initialization voltage lines may include a first vertical initialization voltage line (VL1v), a second-first vertical initialization voltage line (VL21v), and a second-second vertical initialization voltage line (VL22v).
- connection electrode (264) can be electrically connected to the protrusion (CPpb) of the semiconductor pattern (CP) through a contact hole (52) passing through (e.g., penetrating) the second insulating layer (112), the third insulating layer (113), the fourth insulating layer (114), the fifth insulating layer (115), and the sixth insulating layer (116).
- the connection electrode (264) can be electrically connected to the drain region (D5) of the fifth transistor (T5), which is a part of the first semiconductor layer (OACT1), through a contact hole (53) passing through (e.g., penetrating) the fifth insulating layer (115) and the sixth insulating layer (116).
- the connecting electrode (264) can be electrically connected to the protrusion (225p) of the fifth electrode layer (225) through a contact hole (54) passing through (for example, penetrating) the third insulating layer (113), the fourth insulating layer (114), the fifth insulating layer (115), and the sixth insulating layer (116).
- the protrusion (PLvp) of the vertical driving voltage line (PLv) can be electrically connected to the connecting electrode (264) of the third circuit area (PCA3) through a contact hole (62) passing through (for example, penetrating) the seventh insulating layer (117).
- an end of a semiconductor pattern (CP) and a protrusion (PLvp) of a vertical driving voltage line (PLv) can be electrically connected around pixels of a first row and pixels of a last row arranged at the edge of a display area (DA).
- the semiconductor pattern (CP) can function as a horizontal wiring of a mesh structure that supplies a driving voltage (ELVDD) in the display area (DA) together with the vertical driving voltage line (PLv).
- An embodiment of the present invention is an example in which a semiconductor pattern (CP) is implemented as a constant voltage line that supplies a driving voltage (ELVDD) to a pixel circuit (PCa) in a display area (DA).
- CP semiconductor pattern
- EUVDD driving voltage
- PCa pixel circuit
- DA display area
- FIG. 46 is a schematic diagram illustrating transistors and capacitors, etc. of the pixel illustrated in FIG. 9a according to one embodiment.
- FIG. 47 and FIG. 48 are schematic diagrams illustrating some elements of the pixel circuit illustrated in FIG. 46.
- FIG. 46 the same reference numerals are used for components that are identical or substantially identical to those described above with reference to FIGS. 10 to 25, and thus, a duplicate description thereof may not be repeated.
- reference numerals for some components that are identical or substantially identical to those described above with reference to FIGS. 10 to 25 may be omitted.
- the display device illustrated in FIG. 46 may be identical or substantially identical (or similar) to those of the display device described above with reference to FIG. 20, except that the first conductive layer (210) is omitted and some components are changed in the display device described above with reference to FIG. 20.
- differences from the above-described embodiment will be described with reference to FIGS. 10 to 25.
- a first insulating layer (111) is disposed on a substrate (100), and a semiconductor pattern (CP) including a silicon semiconductor may be disposed on the first insulating layer (111), as illustrated in FIG. 47.
- the semiconductor pattern (CP) may include a first semiconductor pattern (CP1) and a second semiconductor pattern (CP2).
- the first semiconductor pattern (CP1) may extend in the x direction and may be disposed to cross the first circuit area (PCA1), the second circuit area (PCA2), and the third circuit area (PCA3).
- the second semiconductor pattern (CP2) may be provided in an island shape in each circuit area.
- a semiconductor pattern (CP) may be covered on a first insulating layer (111) and a second insulating layer (112) may be arranged, and a second conductive layer may be arranged on the second insulating layer (112).
- the second conductive layer may include a first electrode layer (220), a driving voltage line (PL), and a second-second initialization voltage line (VL22).
- a third insulating layer (113) may be arranged on a second insulating layer (112) to cover a second conductive layer, and a third conductive layer may be arranged on the third insulating layer (113).
- the third conductive layer may include a second electrode layer (230), a reference voltage line (VRL), and a first initialization voltage line (VL1).
- the third conductive layer may further include a repair line (RL).
- a fourth insulating layer (114) is arranged over a third conductive layer on a third insulating layer (113), and a semiconductor layer (OACT) including an oxide semiconductor can be arranged over the fourth insulating layer (114) as illustrated in FIG. 14.
- a fifth insulating layer (115) may be arranged on a fourth insulating layer (114) to cover a semiconductor layer (OACT), and a fourth conductive layer may be arranged on the fifth insulating layer (115).
- the fourth conductive layer may include a third electrode layer (240), a fourth electrode layer (250), a first gate line (GWL), a second gate line (GIL), a third gate line (GRL), a fourth gate line (EML), a fifth gate line (EMBL), and a 2-1 initialization voltage line (VL21).
- Some of the third electrode layer (240), the fourth electrode layer (250), the first gate line (GWL), the second gate line (GIL), the third gate line (GRL), the fourth gate line (EML), and the fifth gate line (EMBL) may include gate electrodes (G1 to G7) of the first to seventh transistors (T1 to T7).
- a sixth insulating layer (116) may be arranged on a fifth insulating layer (115) to cover a fourth conductive layer, and a fifth conductive layer may be arranged on the sixth insulating layer (116).
- the fifth conductive layer may include a data line (DL) and connection electrodes (260, 261, 262, 263, 264, 265, 266, 267a, 267b, 268, 290).
- the first region (260a) of the connecting electrode (260) can be electrically connected to the source region (S1) of the first transistor (T1) through a contact hole (31) passing through (for example, penetrating) the fifth insulating layer (115) and the sixth insulating layer (116).
- the first region (260a) of the connecting electrode (260) can be electrically connected to the second electrode layer (230) through a contact hole (32) passing through (for example, penetrating) the fourth insulating layer (114), the fifth insulating layer (115), and the sixth insulating layer (116).
- the second region (260b) of the connecting electrode (260) can be electrically connected to the drain region (D6) of the sixth transistor (T6) through a contact hole (71) passing through (for example, penetrating) the fifth insulating layer (115) and the sixth insulating layer (116).
- the second region (260b) of the connecting electrode (260) can be electrically connected to one end of the second semiconductor pattern (CP2) through a contact hole (72) passing through (for example, penetrating) the second insulating layer (112), the third insulating layer (113), the fourth insulating layer (114), the fifth insulating layer (115), and the sixth insulating layer (116).
- the connecting electrode (290) can be electrically connected to the drain region (D4) of the fourth transistor (T4) through a contact hole (74) passing through (for example, penetrating) the fifth insulating layer (115) and the sixth insulating layer (116).
- the connecting electrode (290) can be electrically connected to the other end of the second semiconductor pattern (CP2) through a contact hole (73) passing through (for example, penetrating) the second insulating layer (112), the third insulating layer (113), the fourth insulating layer (114), the fifth insulating layer (115), and the sixth insulating layer (116).
- a seventh insulating layer (117) may be arranged over a fifth conductive layer on top of a sixth insulating layer (116), and a sixth conductive layer may be arranged over the seventh insulating layer (117).
- the sixth conductive layer may include a plurality of vertical conductive lines and a connection electrode (270).
- the 6th conductive layer is covered on top of the 7th insulating layer (117), and the 8th insulating layer (118) is arranged, and an organic light-emitting diode (OLED) can be arranged as a display element on the 8th insulating layer (118).
- OLED organic light-emitting diode
- a display device (1) may be provided in a display area (DA) with a first semiconductor pattern (CP1) as a component of non-operating silicon thin film transistors (TRs) arranged in a circuit area and a second semiconductor pattern (CP2) as a connection electrode connecting nodes within a pixel circuit (PCa).
- a first semiconductor pattern CP1 as a component of non-operating silicon thin film transistors (TRs) arranged in a circuit area
- CP2 second semiconductor pattern
- the display device (1) illustrated in FIG. 46 has a structure in which a second semiconductor pattern (CP2) is added to the pixel circuit illustrated in FIG. 26, but the present disclosure is not limited thereto.
- the display device (1) may include only the second semiconductor pattern (CP2) by adding the second semiconductor pattern (CP2) to the pixel circuit described above with reference to FIG. 20 or FIG. 29, or the first semiconductor pattern (CP1) may be omitted in the circuit area so that non-operating silicon thin film transistors (TRs) are not formed.
- FIGS. 10 to 48 have been described in response to the example in which the pixel circuit is an N-type oxide transistor as illustrated in FIG. 9a, but even in the case in which the pixel circuit includes an N-type oxide transistor and a P-type silicon transistor as illustrated in FIG. 9b, a semiconductor pattern as illustrated in FIGS. 10 to 48 may be applied to the display area.
- the semiconductor pattern may be formed in the display area during a process of forming a silicon transistor of the pixel circuit and/or the external circuit.
- the semiconductor pattern may be implemented to function as a transistor and/or a conductive line.
- a pattern CD (Critical Dimension) dispersion may occur.
- Embodiments of the present invention can minimize or reduce the pattern CD dispersion between the peripheral area (PA) and the display area (DA) by forming a semiconductor pattern (CP) including silicon in the display area (DA) when forming a silicon thin film transistor.
- a display device having improved display quality can be provided.
- the present disclosure is not limited thereto.
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Abstract
Description
Claims (24)
- 표시영역 및 주변영역을 포함하는 표시장치에 있어서,상기 주변영역에 배치되고, 실리콘 반도체층을 포함하는 제1박막트랜지스터;상기 표시영역에 배치되고, 상기 실리콘 반도체층의 상부층에 배치된 산화물 반도체층을 포함하는 제2박막트랜지스터; 및상기 표시영역에 배치되고, 상기 제1박막트랜지스터의 상기 실리콘 반도체층과 동일층에 배치된 반도체 패턴;을 포함하는 표시장치.
- 제1항에 있어서,상기 반도체 패턴은 실리콘 반도체를 포함하는, 표시장치.
- 제2항에 있어서,상기 반도체 패턴은 플로팅 상태로 구성된, 표시장치.
- 제1항에 있어서,상기 반도체 패턴에 중첩하는 도전층; 및상기 도전층에 중첩하지 않는 상기 반도체 패턴의 대향하는 일단들에 전기적으로 연결된 신호선들;을 더 포함하고,상기 신호선들은 상기 도전층에 전기적으로 연결된, 표시장치.
- 제4항에 있어서,상기 도전층은 상기 제1박막트랜지스터의 게이트전극과 동일층에 배치된, 표시장치.
- 제4항에 있어서,상기 제2박막트랜지스터의 산화물 반도체층이 상기 반도체 패턴에 중첩한, 표시장치.
- 제1항에 있어서,상기 반도체 패턴에 중첩하는 복수의 도전전극들; 및상기 복수의 도전전극들 중 상기 반도체 패턴의 인접하는 도전전극들 사이의 부분들에 전기적으로 연결된 신호선들;을 더 포함하고,상기 신호선들은 상기 도전전극들에 전기적으로 연결된, 표시장치.
- 제7항에 있어서,상기 도전전극들은 상기 제1박막트랜지스터의 게이트전극과 동일층에 배치된, 표시장치.
- 제7항에 있어서,상기 제2박막트랜지스터의 산화물 반도체층이 상기 반도체 패턴에 중첩한, 표시장치.
- 제1항에 있어서,상기 반도체 패턴에 중첩하는 상부 도전층;상기 반도체 패턴에 중첩된 하부 도전층; 및상기 상부 도전층에 중첩하지 않는 상기 반도체 패턴의 대향하는 일단들에 전기적으로 연결된 신호선들;을 더 포함하고,상기 신호선들은 상기 상부 도전층 및 상기 하부 도전층에 전기적으로 연결된, 표시장치.
- 제10항에 있어서,상기 상부 도전층은 상기 제1박막트랜지스터의 게이트전극과 동일층에 배치된, 표시장치.
- 제10항에 있어서,상기 제2박막트랜지스터의 산화물 반도체층이 상기 반도체 패턴에 중첩한, 표시장치.
- 제1항에 있어서,상기 반도체 패턴은 행 방향으로 서로 이격된 복수의 반도체 패턴들을 포함하고,상기 표시장치는,상기 복수의 반도체 패턴들을 가로지르며 상기 복수의 반도체 패턴들에 중첩하는 도전층;상기 복수의 반도체 패턴들의 일단들에 전기적으로 연결된 제1신호선; 및상기 복수의 반도체 패턴들의 타단들에 전기적으로 연결된 제2신호선;을 더 포함하는, 표시장치.
- 제13항에 있어서,상기 제1신호선과 상기 제2신호선은 정전압 신호를 공급받고,상기 도전층은 제1전압레벨의 전압과 상기 제1전압레벨보다 낮은 제2전압레벨의 전압을 포함하는 신호를 공급받는, 표시장치.
- 제13항에 있어서,상기 복수의 반도체 패턴들과 동일층에 배치되고, 상기 행 방향으로 연장된 제2반도체 패턴;상기 제2반도체 패턴에 중첩하는 제2도전층; 및상기 제2도전층에 중첩하지 않는 상기 제2반도체 패턴의 대향하는 일단들에 전기적으로 연결된 제3신호선들;을 더 포함하고,상기 제3신호선들은 상기 제1신호선과 상기 제2신호선으로 공급되는 전압과 동일한 전압을 공급받는, 표시장치.
- 제1항에 있어서,상기 반도체 패턴에 중첩하는 도전층; 및상기 도전층에 전기적으로 연결된 신호선;을 더 포함하는, 표시장치.
- 제1항에 있어서,상기 반도체 패턴은 정전압을 공급하는 도전선에 전기적으로 연결된, 표시장치.
- 제1항에 있어서,상기 표시영역에 배치되고, 상기 실리콘 반도체층의 상부층에 배치된 산화물 반도체층을 포함하는 제3박막트랜지스터;를 더 포함하고,상기 반도체 패턴은 상기 제2박막트랜지스터의 산화물 반도체층과 상기 제3박막트랜지스터의 산화물 반도체층을 전기적으로 연결하는, 표시장치.
- 제1항에 있어서,상기 주변영역에 배치되고, 상기 산화물 반도체층을 포함하는 제3박막트랜지스터;를 더 포함하는, 표시장치.
- 제1항에 있어서,상기 표시영역에 배치되고, 상기 실리콘 반도체층을 포함하는 제4박막트랜지스터;를 더 포함하는, 표시장치.
- 표시영역 및 주변영역을 포함하는 표시장치에 있어서,상기 표시영역에 배치된 반도체 패턴;상기 반도체 패턴 상에 배치되고, 상기 반도체 패턴에 중첩하는 도전층;상기 도전층 상에 배치되고, 상기 도전층에 중첩하는 제1전극층;상기 제1전극층 상에 배치된 산화물 반도체층;상기 산화물 반도체층 상에 배치된 제2전극층; 및상기 제2전극층 상에 배치되고, 상기 제2전극층에 중첩하는 제3전극층;을 포함하는 표시장치.
- 제11항에 있어서,상기 반도체 패턴은 실리콘 반도체를 포함하는, 표시장치.
- 제21항에 있어서,상기 표시영역에 배치되고, 기판과 상기 반도체 패턴 사이에 배치된 하부 도전층을 더 포함하고,상기 반도체 패턴은 상기 하부 도전층에 중첩하는, 표시장치.
- 제21항에 있어서,상기 주변영역에 배치된 실리콘 반도체층; 및상기 실리콘 반도체층 상에 배치되고, 상기 실리콘 반도체층에 중첩하는 제4전극층;을 더 포함하고,상기 실리콘 반도체층은 상기 반도체 패턴과 동일층에 배치되고,상기 제4전극층은 상기 도전층과 동일층에 배치된, 표시장치.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202480010898.2A CN120642607A (zh) | 2023-03-24 | 2024-03-22 | 显示设备 |
| US19/336,258 US20260033138A1 (en) | 2023-03-24 | 2025-09-22 | Display apparatus |
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| KR20230039086 | 2023-03-24 | ||
| KR10-2023-0039086 | 2023-03-24 | ||
| KR10-2023-0090025 | 2023-07-11 | ||
| KR1020230090025A KR20240144715A (ko) | 2023-03-24 | 2023-07-11 | 표시장치 |
| KR1020240039963A KR20240144757A (ko) | 2023-03-24 | 2024-03-22 | 표시장치 |
| KR10-2024-0039963 | 2024-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US19/336,258 Continuation-In-Part US20260033138A1 (en) | 2023-03-24 | 2025-09-22 | Display apparatus |
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| WO2024205151A1 true WO2024205151A1 (ko) | 2024-10-03 |
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| KR20190003150A (ko) * | 2017-06-30 | 2019-01-09 | 엘지디스플레이 주식회사 | 표시 장치 및 이의 제조 방법 |
| KR101962860B1 (ko) * | 2014-02-25 | 2019-03-27 | 엘지디스플레이 주식회사 | 조절가능한 리프레시 레이트로 구동되는 선택적인 부분들을 포함하는 디스플레이 및 이를 구동하는 방법 |
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| US20200373336A1 (en) * | 2016-09-14 | 2020-11-26 | Tianma Japan, Ltd. | Semiconductor device |
| KR20220115709A (ko) * | 2021-02-09 | 2022-08-18 | 삼성디스플레이 주식회사 | 표시 패널 및 이를 구비하는 표시 장치 |
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| KR101962860B1 (ko) * | 2014-02-25 | 2019-03-27 | 엘지디스플레이 주식회사 | 조절가능한 리프레시 레이트로 구동되는 선택적인 부분들을 포함하는 디스플레이 및 이를 구동하는 방법 |
| KR102013488B1 (ko) * | 2016-03-23 | 2019-08-22 | 가부시키가이샤 재팬 디스프레이 | 표시 장치 및 그 제조 방법 |
| US20200373336A1 (en) * | 2016-09-14 | 2020-11-26 | Tianma Japan, Ltd. | Semiconductor device |
| KR20190003150A (ko) * | 2017-06-30 | 2019-01-09 | 엘지디스플레이 주식회사 | 표시 장치 및 이의 제조 방법 |
| KR20220115709A (ko) * | 2021-02-09 | 2022-08-18 | 삼성디스플레이 주식회사 | 표시 패널 및 이를 구비하는 표시 장치 |
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