Display device
By designing overlapping unit pixel regions and crossing sub-pixel opening edges in the display device, the problem of external light reflecting at the pixel boundary is solved, and the visibility of the display device and the sharpness of the driver's line of sight are improved.
Patent Information
- Application Number
- CN202110108272.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2020-01-30
- Filing Date
- 2021-01-27
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2041-01-27
AI Technical Summary
The display device reflects external light at the boundary of the opening area of the pixel, interfering with the driver's line of sight.
A display device is designed in which the opening regions of a plurality of unit pixel regions overlap each other and the edges of the opening region of each sub-pixel intersect with the scanning line, avoiding parallel or right angle crossing to maximize the opening rate and minimize light reflection.
By optimizing the layout of unit pixel areas and the overlap design of the opening areas, the reflection of external light at the pixel boundary is reduced, and the visibility of the display device and the clearness of the driver's line of sight is improved.
Smart Images

Figure CN113206131B_ABST
Abstract
Description
[0001] Cross - reference to related applications
[0002] This application claims the priority and benefit of Korean Patent Application No. 10 - 2020 - 0011083, filed with the Korean Intellectual Property Office on January 30, 2020, the entire contents of which are incorporated herein by reference. Technical field
[0003] The present disclosure relates to a display device. Background art
[0004] With the development of the information society, the demand for display devices for displaying images has increased and diversified. For example, display devices have been applied to various electronic devices such as smart phones, digital cameras, laptop computers, navigation devices, and smart TVs.
[0005] The display device can be applied to a Center Information Display (CID) arranged on the instrument panel, the center console, or the dashboard of a vehicle. In this case, external light can be reflected by the display device to interfere with the driver's line of sight. As an example, the display device may include pixels that can output light as the smallest unit, and each pixel can output light through an opening area. For example, external light can be reflected at the boundary of the opening area of the pixel, which can interfere with the driver's line of sight.
[0006] It will be understood that this background of the technical part is intended to partly provide a useful background for understanding the technology. However, this background of the technical part may also include ideas, concepts, or understandings that are not part of the content known or appreciated by those skilled in the relevant art before the effective filing date of the corresponding application of the subject matter disclosed herein. Summary of the invention
[0007] Multiple aspects of the present disclosure provide a display device that can reduce external light reflected at the boundary of the opening area of each pixel.
[0008] However, the aspects of the present disclosure are not limited to these described herein. Through reference to the detailed description of the present disclosure given below, the above and other aspects of the present disclosure will become more apparent to those of ordinary skill in the art to which the present disclosure pertains.
[0009] According to an embodiment, a display device is provided, which may include scan lines arranged in a first direction, data lines arranged in a second direction substantially perpendicular to the first direction, and a plurality of unit pixel regions adjacent to the scan lines and the data lines. Each of the plurality of unit pixel regions includes a plurality of sub-pixels. Wherein, a part of the opening region of at least one of the plurality of sub-pixels may overlap with a unit pixel region adjacent to the unit pixel region corresponding to at least one of the plurality of sub-pixels, and one side of the opening region of at least one of the plurality of sub-pixels may extend in a third direction inclined with respect to each of the first direction and the second direction.
[0010] Each of the plurality of unit pixel regions may include a first sub-pixel to a third sub-pixel, and a first opening region of the first sub-pixel and a second opening region of the second sub-pixel may be disposed on one side of a third opening region of the third sub-pixel in the third direction.
[0011] The first opening region may be disposed on one side of the second opening region in a fourth direction, and the fourth direction may be substantially perpendicular to the third direction.
[0012] A part of the third opening region may overlap with a unit pixel region adjacent to the unit pixel region corresponding to the third opening region on one side in the first direction, and another part of the third opening region may overlap with a unit pixel region adjacent to the unit pixel region corresponding to the third opening region on one side in the second direction.
[0013] Each of the plurality of unit pixel regions may include a first sub-pixel to a third sub-pixel, a first opening region of the first sub-pixel and a second opening region of the second sub-pixel may be disposed on the other side of a third opening region of the third sub-pixel in the fourth direction, and the fourth direction may be substantially perpendicular to the third direction.
[0014] The plurality of unit pixel regions may include a first unit pixel region and a second unit pixel region adjacent to one side of the first unit pixel region in the first direction. A first opening region of the first unit pixel region may be disposed on one side of a second opening region of the first unit pixel region in the third direction, and a first opening region of the second unit pixel region may be disposed on the other side of a second opening region of the second unit pixel region in the fourth direction.
[0015] The plurality of unit pixel regions may further include a third unit pixel region adjacent to one side of the first unit pixel region in the second direction and a fourth unit pixel region adjacent to one side of the second unit pixel region in the second direction. A part of the second opening region of the first unit pixel region may overlap with the third unit pixel region, and a part of the first opening region of the second unit pixel region may overlap with the fourth unit pixel region.
[0016] A part of the third opening area of the third unit pixel area may overlap with the first unit pixel area, and another part of the third opening area of the third unit pixel area may overlap with the fourth unit pixel area.
[0017] The display device may further include: a first substrate on which a plurality of unit pixel areas may be provided; and a second substrate facing the first substrate, wherein the plurality of unit pixel areas may include a first unit pixel area and a second unit pixel area adjacent to one side of the first unit pixel area in a first direction, the first unit pixel area may include a first sub-pixel to a third sub-pixel and a first spacer disposed between the first substrate and the second substrate, and the second unit pixel area may include a first sub-pixel to a third sub-pixel and a second spacer disposed between the first substrate and the second substrate.
[0018] The first opening area of the first sub-pixel of the first unit pixel area and the second opening area of the second sub-pixel of the first unit pixel area may be disposed on the other side of the third opening area of the third sub-pixel in a fourth direction substantially perpendicular to the third direction, the first opening area of the first unit pixel area may be disposed on one side of the second opening area in the third direction, and the first spacer may be disposed between the first opening area of the first unit pixel area and the third opening area of the first unit pixel area.
[0019] The first opening area of the first sub-pixel of the second unit pixel area and the second opening area of the second sub-pixel of the second unit pixel area may be disposed on the other side of the third opening area of the third sub-pixel in a fourth direction substantially perpendicular to the third direction, the first opening area of the second unit pixel area may be disposed on the other side of the second opening area in the fourth direction, and the second spacer may be disposed on one side of the second opening area of the second unit pixel area and the third opening area of the second unit pixel area in the third direction.
[0020] The plurality of unit pixel areas may include a third unit pixel area adjacent to one side of the first unit pixel area in a second direction and a fourth unit pixel area adjacent to one side of the second unit pixel area in the second direction, a part of the second opening area of the second sub-pixel of the first unit pixel area may overlap with the third unit pixel area, and a part of the first opening area of the first sub-pixel of the second unit pixel area may overlap with the fourth unit pixel area.
[0021] A part of the third opening area of the third sub-pixel of the third unit pixel area may overlap with the first unit pixel area, and another part of the third opening area of the third sub-pixel of the third unit pixel area may overlap with the fourth unit pixel area.
[0022] The display device may further include: a first substrate on which a plurality of unit pixel regions may be provided; and a second substrate facing the first substrate, wherein the plurality of unit pixel regions may include a first unit pixel region and a second unit pixel region adjacent to one side of the first unit pixel region in a first direction, the first unit pixel region may include a first sub-pixel to a third sub-pixel and a first spacer and a second spacer disposed between the first substrate and the second substrate, and the second unit pixel region may include a first sub-pixel to a third sub-pixel and a third spacer and a fourth spacer disposed between the first substrate and the second substrate.
[0023] In each of the first unit pixel region and the second unit pixel region, a first opening region of the first sub-pixel and a second opening region of the second sub-pixel may be disposed on the other side of a third opening region of the third sub-pixel in a fourth direction substantially perpendicular to a third direction, the first opening region of the first unit pixel region may be disposed on one side of the second opening region of the first unit pixel region in the third direction, and the first opening region of the second unit pixel region may be disposed on the other side of the second opening region of the second unit pixel region in the fourth direction.
[0024] The first spacer may be disposed on the other side of the first opening region of the first unit pixel region in a second direction and on the other side of the third opening region of the first unit pixel region in the first direction, and wherein the second spacer may be disposed on one side of the second opening region of the first unit pixel region in the first direction and may be disposed on one side of the third opening region of the first unit pixel region in the second direction.
[0025] The third spacer may be disposed on the other side of the second opening region of the second unit pixel region in a second direction and on the other side of the third opening region of the second unit pixel region in the first direction, and the fourth spacer may be disposed on one side of the second opening region of the second unit pixel region in the first direction and may be disposed on one side of the third opening region of the second unit pixel region in the second direction.
[0026] The first opening region of the first unit pixel region may include a central portion, a first protruding portion protruding from the central portion to one side in the third direction, a second protruding portion protruding from the central portion to the third opening region of the first unit pixel region, and a third protruding portion protruding from the central portion in a direction opposite to the second protruding portion.
[0027] The second opening region of the first unit pixel region may include: a central portion, a first protruding portion protruding from the central portion to the other side in the third direction, a second protruding portion protruding from the central portion to the third opening region of the first unit pixel region, and a third protruding portion protruding from the central portion in a direction opposite to the second protruding portion.
[0028] The third opening area of the first unit pixel area may include a central portion, a first protruding portion protruding from the central portion toward the first opening area and the second opening area of the first unit pixel area, a second protruding portion protruding from the central portion toward the other side in the third direction, a third protruding portion protruding from the central portion in a direction opposite to the first protruding portion, and a fourth protruding portion protruding from the central portion in a direction opposite to the second protruding portion.
[0029] Each of the plurality of unit pixel areas may include a first sub-pixel to a third sub-pixel. The first opening area of the first sub-pixel and the second opening area of the second sub-pixel may be disposed on one side of the third opening area of the third sub-pixel in a fourth direction substantially perpendicular to the third direction, and the third opening area may include a central portion and a protruding portion protruding from the lower corner of the central portion toward one side in the second direction.
[0030] The plurality of unit pixel areas may include a first unit pixel area and a second unit pixel area adjacent to one side of the first unit pixel area in the first direction. The end of the protruding portion of the third opening area of the first unit pixel area may face the second opening area of the first unit pixel area, and the other end of the protruding portion of the third opening area substantially perpendicular to the end may face the first opening area of the second unit pixel area.
[0031] The first unit pixel area may include a first spacer surrounded by the first opening area, the end of the protruding portion of the third opening area, and the left corner of the central portion of the third opening area.
[0032] The second unit pixel area may include a second spacer surrounded by the right corner of the central portion of the third opening area of the first unit pixel area, the other end of the protruding portion of the third opening area of the first unit pixel area, the second opening area of the second unit pixel area, and the left corner of the central portion of the third opening area of the second unit pixel area.
[0033] The plurality of unit pixel areas may include a first unit pixel area and a second unit pixel area adjacent to one side of the first unit pixel area in the first direction. Each of the first unit pixel area and the second unit pixel area may include a first sub-pixel to a third sub-pixel. In each of the first unit pixel area and the second unit pixel area, the first opening area of the first sub-pixel and the second opening area of the second sub-pixel may be disposed on the other side of the third opening area of the third sub-pixel in a fourth direction substantially perpendicular to the third direction, and the third opening area may include an end extending from the center of gravity toward one side in the third direction and the other end extending from the center of gravity toward one side in the fourth direction.
[0034] The first opening area of the first unit pixel area and the second opening area of the first unit pixel area may be disposed on the other side of the end of the third opening area of the first unit pixel area in a fourth direction, and the first opening area of the second unit pixel area and the second opening area of the second unit pixel area may be disposed on the other side of the other end of the third opening area of the first unit pixel area in a third direction.
[0035] The plurality of unit pixel areas may further include a third unit pixel area having first to third sub-pixels and adjacent to one side of the first unit pixel area in a second direction, and the third unit pixel area may include a first spacer surrounded by the second opening area of the first unit pixel area, the third opening area of the first unit pixel area, the first opening area of the second unit pixel area, and the third opening area of the third unit pixel area.
[0036] According to an embodiment, a display device is provided, which may include scan lines disposed in a first direction, data lines disposed in a second direction substantially perpendicular to the first direction, and a plurality of unit pixel areas adjacent to the scan lines and the data lines. Each of the plurality of unit pixel areas includes a plurality of sub-pixels. A part of an opening area of at least one of the plurality of sub-pixels may overlap with a unit pixel area adjacent to the unit pixel area corresponding to at least one of the plurality of sub-pixels, and an extending direction of at least one side of an opening area of each sub-pixel among the plurality of sub-pixels may intersect all boundaries of the unit pixel area corresponding to at least one of the plurality of sub-pixels at an acute angle.
[0037] In the display device according to the embodiment, one side of the opening area of each sub-pixel may cross the scan line in a plan view. For example, one side of the opening area of each sub-pixel may not be parallel to the scan line in a plan view and may not cross the scan line at a right angle in a plan view. In addition, a part of at least one opening area among the opening areas of the sub-pixels may extend beyond the corresponding unit pixel area and overlap with an adjacent unit pixel area. Therefore, the display device may maximize the aperture ratio of each sub-pixel while minimizing external light reflected at the boundaries of the opening area.
[0038] The effects of the present disclosure are not limited to the above effects, and various other effects are included in the specification. BRIEF DESCRIPTION OF THE DRAWINGS
[0039] By describing embodiments of the present disclosure in detail with reference to the drawings, the above and other aspects and features of the present disclosure will become more apparent. In the drawings:
[0040] Figure 1 is a perspective view showing a display device according to an embodiment;
[0041] Figure 2 is showing Figure 1Exploded perspective view of a display device;
[0042] Figure 3 shows Figure 2 Planar view of a display panel;
[0043] Figure 4 shows Figure 2 Block diagram of a display panel;
[0044] Figure 5 Planar view showing a unit pixel region of a display device according to an embodiment;
[0045] Figure 6 Planar view showing a unit pixel region of a display device according to an embodiment;
[0046] Figure 7 Planar view showing a unit pixel region of a display device according to an embodiment;
[0047] Figure 8 is a schematic cross-sectional view taken along line I-I' of Figure 7 ;
[0048] Figure 9 Planar view showing a unit pixel region of a display device according to an embodiment;
[0049] Figure 10 is Figure 9 an enlarged view of the unit pixel region of
[0050] Figure 11 Planar view showing a unit pixel region of a display device according to an embodiment;
[0051] Figure 12 is Figure 11 an enlarged view of the unit pixel region of
[0052] Figure 13 Planar view showing a unit pixel region of a display device according to an embodiment;
[0053] Figure 14 Planar view showing a unit pixel region of a display device according to an embodiment;
[0054] Figure 15 Planar view showing a unit pixel region of a display device according to an embodiment;
[0055] Figure 16 Planar view showing a unit pixel region of a display device according to an embodiment;
[0056] Figure 17 Planar view showing a unit pixel region of a display device according to an embodiment;
[0057] Figure 18 is a diagram showing an example in which a display device according to an embodiment is applied to a vehicle; and
[0058] Figure 19 is a diagram showing an example in which a display device according to an embodiment is applied to a vehicle. Detailed Embodiments
[0059] Features and methods for implementing the features can be more easily understood by referring to the following detailed description of the embodiments and the accompanying drawings. However, the present disclosure may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the present disclosure to those skilled in the art, and the present disclosure will be defined by the appended claims.
[0060] To describe the embodiments of the present disclosure, some parts not relevant to the description may not be provided, and throughout the specification, like reference numerals refer to like elements.
[0061] As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. Throughout the disclosure, the expression "at least one of a, b, and c" indicates only a, only b, only c, both a and b, both a and c, both b and c, all of a, b, and c, or variations thereof.
[0062] The terms "and" and "or" may be used in a conjunctive or disjunctive sense and may be understood as equivalent to "and / or". In the specification and claims, for the purposes of their meaning and interpretation, the phrase "at least one of..." is intended to include the meaning of "at least one selected from the group of...". For example, "at least one of A and B" may be understood to mean "A, B, or A and B".
[0063] It will be understood that although terms such as "first" and "second" are used herein to describe various elements, these elements should not be limited by these terms. For example, without departing from the scope of the appended claims, an element referred to as the first element in one embodiment may be referred to as the second element in another embodiment.
[0064] Unless the context clearly indicates otherwise, as used herein, the singular forms "a" and "the" are also intended to include the plural forms.
[0065] It will be further understood that when the terms "comprising" and "having" are used in this specification, they or it may specify the presence of the stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of other features, integers, steps, operations, elements, components, and / or any combination thereof.
[0066] When a layer, film, region, substrate, or area or an element is referred to as being "on" another layer, film, region, substrate, or area or an element, it can be directly on the other layer, film, region, substrate, or area or an element, or an intermediate layer, film, region, substrate, or area or an element may be present between them. In contrast, when a layer, film, region, substrate, or area or an element is referred to as being "directly on" another layer, film, region, substrate, or area or an element, no intermediate layer, film, region, substrate, or area or an element may be present between them. Further, when a layer, film, region, substrate, or area or an element is referred to as being "under" another layer, film, region, substrate, or area or an element, it can be directly under the other layer, film, region, substrate, or area or an element, or an intermediate layer, film, region, substrate, or area or an element may be present between them. In contrast, when a layer, film, region, substrate, or area or an element is referred to as being "directly under" another layer, film, region, substrate, or area or an element, no intermediate layer, film, region, substrate, or area or an element may be present between them. Additionally, "above" or "on" may include being positioned on or under an object and does not necessarily imply a gravity-based direction.
[0067] For ease of description, spatial relationship terms such as "under", "beneath", "below", "above", "on", or similar terms may be used herein to describe the relationship between one element or component and another as shown in the figures. It will be understood that the spatial relationship terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, in the case where the device shown in the figures is flipped, a device positioned "under" or "beneath" another device may be placed "above" the other device. Thus, the illustrative term "under" may include both upper and lower positions. The device may also be oriented in other directions and, accordingly, the spatial relationship terms may be differently interpreted depending on the orientation.
[0068] In the figures, the dimensions and thicknesses of the elements may be exaggerated for better understanding, clarity, and ease of their description. However, the present disclosure is not limited to the dimensions and thicknesses shown. In the figures, the thicknesses of layers, films, panels, regions, and other elements may be exaggerated for clarity. In the figures, for better understanding and ease of description, the thicknesses of some layers and regions may be exaggerated.
[0069] Additionally, the term "overlap" means that the first object can be above or below the second object or towards one side of the second object, and vice versa. Additionally, the term "overlap" may include stacking, piling, facing, extending over, covering or partially covering, or any other suitable term as would be appreciated and understood by those of ordinary skill in the art. The term "facing" means that the first element can be directly or indirectly opposite to the second element. In the case where a third element is between the first element and the second element, although still facing each other, the first element and the second element can be understood as being indirectly opposite to each other. When an element is described as "not overlapping" with another element, this may include these elements being spaced apart from each other, offset from each other, or separated from each other, or any other suitable term as would be appreciated and understood by those of ordinary skill in the art.
[0070] Furthermore, in the specification, the phrase "in a plan view" means when observing the target part from above, and the phrase "in a schematic cross-sectional view" means when observing a schematic cross-section taken by vertically cutting the target part from the side.
[0071] It will be understood that when a layer, region, or component is referred to as being "connected" or "coupled" to another layer, region, or component, it can be "directly connected" or "directly coupled" to the other layer, region, or component and / or can be "indirectly connected" or "indirectly coupled" to the other layer, region, or component in the case where other layers, regions, or components are between them. For example, it will be understood that when a layer, region, or component is referred to as being "electrically connected" or "electrically coupled" to another layer, region, or component, it can be "directly electrically connected" or "directly electrically coupled" to the other layer, region, or component, and can be "indirectly electrically connected" or "indirectly electrically coupled" to the other layer, region, or component in the case where other layers, regions, or components are between them.
[0072] Additionally, when an element is referred to as being "in contact" or the like with another element, the element can be "electrically in contact" or "physically in contact" with the other element, or "indirectly in contact" or "directly in contact" with the other element.
[0073] Taking into account the measurements discussed and the errors associated with the measurement of a particular quantity (i.e., the limitations of the measurement system), as used herein, "about" or "approximately" includes the stated value and the mean within an acceptable range of deviation for a particular value as determined by those of ordinary skill in the art. For example, "about" can mean within one or more standard deviations, or within ±30%, ±20%, ±10%, ±5% of the stated value.
[0074] In the following examples, the x-axis, y-axis, and z-axis are not limited to the three axes of a rectangular coordinate system and can be interpreted in a broad sense. For example, the x-axis, y-axis, and z-axis can be perpendicular to each other, or can represent different directions that may not be perpendicular to each other.
[0075] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the embodiments belong. Additionally, it will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.
[0076] Embodiments will be described below with reference to the accompanying drawings.
[0077] Figure 1 is a perspective view showing a display device 10 according to an embodiment. Figure 2 is showing Figure 1 an exploded perspective view of the display device 10.
[0078] As used herein, the terms “above,” “top,” and “upper surface” refer to the upward direction (i.e., the Z-axis direction) with respect to the display device. As used herein, “below,” “bottom,” and “lower surface” refer to the downward direction with respect to the display device (i.e., the direction opposite to the Z-axis direction). Additionally, “left,” “right,” “up,” and “down” indicate directions when viewing the display device from above. For example, “left” refers to the direction opposite to the X-axis direction, “right” refers to the X-axis direction, “up” refers to the Y-axis direction, and “down” refers to the direction opposite to the Y-axis direction.
[0079] Referring to Figure 1 and Figure 2 , the display device 10 is a device that can display moving images or still images. The display device 10 can be used as a display screen for various products such as televisions, laptop computers, monitors, billboards, and devices for the Internet of Things (IOT), as well as portable electronic devices such as mobile phones, smartphones, tablet personal computers (tablet PCs), smartwatches, watch phones, mobile communication terminals, electronic notebooks, e-books, portable multimedia players (PMPs), navigation systems, and ultra-mobile PCs (UMPCs). However, the present disclosure is not limited thereto, and other products are within the spirit and scope of the present disclosure.
[0080] The display device 10 may have a substantially rectangular shape in a plan view. For example, the display device 10 may have a substantially rectangular shape having a short side in a first direction (X-axis direction) and a long side in a second direction (Y-axis direction) in a plan view. A corner where the short side in the first direction (X-axis direction) intersects the long side in the second direction (Y-axis direction) may be a right angle or a rounded corner having a predetermined curvature. The planar shape of the display device 10 is not limited to a substantially rectangular shape and may be formed into other substantially polygonal shapes, circular shapes, or elliptical shapes. The display device 10 may be formed flat, but is not limited thereto. For example, the display device 10 may be formed to be bent with a predetermined curvature.
[0081] The display device 10 may include a cover window 100, a touch sensing device 200, a display panel 300, a panel bottom member 400, and a bottom cover 800.
[0082] The cover window 100 may be disposed above the display panel 300 to cover or overlap the top surface of the display panel 300. The cover window 100 may protect the top surface of the display panel 300. For example, the cover window 100 may be attached to the touch sensing device 200 through an adhesive member. The adhesive member may be an Optically Clear Adhesive (OCA) or an Optically Clear Resin (OCR).
[0083] The cover window 100 may include a transmissive portion that may display an image of the display panel 300 and a light blocking portion that may correspond to a region other than the transmissive portion. The light blocking portion of the cover window 100 may be formed to be opaque so that unnecessary components other than the image of the display panel 300 may not be seen by the user. Alternatively, the light blocking portion of the cover window 100 may be formed as a decorative layer having a pattern that may be shown to the user when no image is being displayed. For example, the light blocking portion of the cover window 100 may include a company logo or a pattern of various characters.
[0084] For example, the cover window 100 may be made of glass, sapphire, or plastic, but is not necessarily limited thereto. The cover window 100 may be rigid or flexible.
[0085] The touch sensing device 200 may be disposed between the cover window 100 and the display panel 300. The touch sensing device 200 may detect a touch position of a user and may be implemented as an infrared type or a capacitance type, such as a self-capacitance type or a mutual-capacitance type.
[0086] The touch sensing device 200 may be disposed on the upper substrate of the display panel 300. Alternatively, the touch sensing device 200 may be integrally formed with the display panel 300. In this case, the upper substrate of the display panel 300 may be omitted, and the touch sensing device 200 may be formed on the encapsulation layer of the display panel 300. For example, the touch sensing device 200 may include a pressure sensor that can sense the pressure of a user.
[0087] For example, the display device 10 may include a polarizing film (not shown) disposed on the touch sensing device 200 to prevent a reduction in the visibility of an image displayed by the display panel 300 due to external light reflected by the layers of the touch sensing device 200 or the layers of the display panel 300.
[0088] The touch sensing device 200 may include a touch circuit board 210 and a touch driver 220.
[0089] The touch circuit board 210 may be disposed on one side of the touch sensing device 200. For example, the touch circuit board 210 may be attached to pads disposed or arranged on one side of the touch sensing device 200 by using an anisotropic conductive film. The touch circuit board 210 may include touch connection terminals, and the touch connection terminals may be electrically connected to a connector of the display circuit board 310. The touch circuit board 210 may be a flexible printed circuit board or a chip on film.
[0090] The touch driver 220 may apply a touch driving signal to the touch sensing device 200, receive a sensing signal from the touch sensing device 200, and analyze the sensing signal to calculate the touch position of a user. The touch driver 220 may be formed as an integrated circuit and mounted on the touch circuit board 210.
[0091] The display panel 300 may include a display circuit board 310 and a display driver 320.
[0092] The display circuit board 310 may be attached to one side of the display panel 300. For example, one end of the display circuit board 310 may be attached to pads disposed or arranged on one side of the display panel 300 by using an anisotropic conductive film. The other end of the display circuit board 310 may be attached to the bottom surface of the panel bottom member 400 by using an adhesive member. The touch circuit board 210 and the display circuit board 310 may be flexible printed circuit boards and may be bent from the top to the bottom of the display panel 300. The display circuit board 310 may be electrically connected to the touch connection terminals of the touch circuit board 210 through a connector.
[0093] The display driver 320 may supply signals and voltages that can drive the display panel 300 through the display circuit board 310. For example, the display driver 320 may receive digital video data and a timing signal from the outside, convert the digital video data into analog positive / negative data voltages, and then supply them to the data lines through pads. The display driver 320 may supply a scan control signal that can control the scan driver through the scan control line. The display driver 320 may supply a source voltage required to drive the sub-pixels of the display panel 300 to the pads.
[0094] The display driver 320 may be formed as an integrated circuit and mounted on the display circuit board 310, but the present disclosure is not limited thereto. For example, the display driver 320 may be attached to one side of the display panel 300.
[0095] The panel bottom member 400 may be disposed on the bottom surface of the display panel 300. For example, the panel bottom member 400 may include at least one of a heat dissipation layer that can effectively dissipate the heat of the display panel 300, an electromagnetic shielding layer that can shield electromagnetic waves, a light blocking layer that can block light incident from the outside, and a buffer layer that can absorb an impact from the outside.
[0096] The bottom cover 800 may be disposed below the panel bottom member 400. The bottom cover 800 may form the appearance of the bottom surface of the display device 10. The bottom cover 800 may be formed in a substantially bowl shape to accommodate the display panel 300. The side wall of the bottom cover 800 may contact the edge of the cover window 100. In this case, the side wall of the bottom cover 800 may be bonded to the edge of the cover window 100 through an adhesive member.
[0097] The bottom cover 800 may be fastened to the panel bottom member 400 through a fixing member such as a screw, or may be attached to the panel bottom member 400 through an adhesive member such as an adhesive or a tape. The bottom cover 800 may include plastic and / or metal. The bottom cover 800 may include stainless steel (SUS) or aluminum (Al) to increase the heat dissipation effect.
[0098] Figure 3 is a plan view showing Figure 2 the display panel 300. Figure 4 is a block diagram showing Figure 2 the display panel 300.
[0099] Referring to Figure 3 and Figure 4, the display panel 300 may include a display area DA where sub-pixels SP may be formed or arranged to display an image, and a non-display area NDA which may be a peripheral area of the display area DA. The display area DA may include sub-pixels SP, scan lines SL electrically connected to the sub-pixels SP, emission control lines EML, data lines DL, and voltage supply lines VL. The scan lines SL and the emission control lines EML may be formed in parallel in a first direction (X-axis direction). The data lines DL and the voltage supply lines VL may be formed in parallel in a second direction (Y-axis direction) that intersects or crosses the first direction (X-axis direction). The first direction may be substantially perpendicular to the second direction.
[0100] Each sub-pixel SP may be electrically connected to at least one of a plurality of scan lines SL, at least one of a plurality of data lines DL, at least one of a plurality of emission control lines EML, and at least one of a plurality of voltage supply lines VL. In Figure 3 , each sub-pixel SP may be electrically connected to two scan lines SL, one data line DL, one emission control line EML, and one voltage supply line VL, but the present disclosure is not limited thereto. In an example, each sub-pixel SP may be electrically connected to three scan lines SL.
[0101] Each sub-pixel SP may include a driving transistor, at least one switching transistor, a light-emitting element, and at least one capacitor. When a scan signal is applied from the scan line SL, the switching transistor may be turned on, and thus the data voltage of the data line DL may be applied to the gate electrode of the driving transistor. The driving transistor may supply a driving current to the light-emitting element according to the data voltage applied to the gate electrode, and the light-emitting element may emit light with a predetermined brightness according to the magnitude of the driving current. The driving transistor and the at least one switching transistor may be thin-film transistors. The light-emitting element may be an organic light-emitting diode including a first electrode, an organic light-emitting layer, and a second electrode. The capacitor may keep the data voltage applied to the gate electrode of the driving transistor constant.
[0102] The non-display area NDA may be defined as an area from the outside of the display area DA to the edge of the display panel 300. The non-display area NDA may include a scan driver 510 that may apply a scan signal to the scan line SL, an emission control driver 520 that may apply an emission signal to the emission control line EML, fan-out lines FL between the data lines DL and the pads DP, and pads DP electrically connected to the display driver 320. For example, the pads DP may be provided on a side edge of the display panel 300.
[0103] The display panel 300 may include a scan driver 510 and an emission control driver 520.
[0104] The scan driver 510 may generate scan signals based on scan control signals SCS and sequentially output the scan signals to scan lines SL. The emission control driver 520 may generate emission signals according to emission control signals ECS and sequentially output the emission signals to emission control lines EML.
[0105] Each of the scan driver 510 and the emission control driver 520 may include thin film transistors. The scan driver 510 and the emission control driver 520 may be formed or disposed on the same layer as the layer where the thin film transistors of the sub-pixels SP are located. In Figure 3 it, the scan driver 510 may be disposed on the left side of the non-display area NDA, and the emission control driver 520 may be disposed on the right side of the non-display area NDA, but the present disclosure is not limited thereto.
[0106] In Figure 4 it, the display driver 320 may include a timing controller 321, a data driver 322, and a power supply unit 323.
[0107] The timing controller 321 may receive digital video data DATA and timing signals from the display circuit board 310. The timing controller 321 may generate a data control signal DCS that can control the operation timing of the data driver 322, generate a scan control signal SCS that can control the operation timing of the scan driver 510, and generate an emission control signal ECS that can control the operation timing of the emission control driver 520 based on the timing signals. The timing controller 321 may supply the digital video data DATA and the data control signal DCS to the data driver 322. The timing controller 321 may supply the scan control signal SCS to the scan driver 510 through a first scan control line SCL1, and may supply the emission control signal ECS to the emission control driver 520 through a second scan control line SCL2.
[0108] The data driver 322 may convert the digital video data DATA into analog positive / negative data voltages and supply them to data lines DL through fan-out lines FL. The scan signals of the scan driver 510 may select the sub-pixels SP to which the data voltages are to be supplied, and the data driver 322 may supply the data voltages to the selected sub-pixels SP.
[0109] The power supply unit 323 may generate a first driving voltage and supply the first driving voltage to a voltage supply line VL. The power supply unit 323 may generate a second driving voltage and supply the second driving voltage to the cathode electrodes of the light-emitting elements of each sub-pixel SP. Here, the first driving voltage may be a high-potential voltage that can drive the light-emitting elements, and the second driving voltage may be a low-potential voltage that can drive the light-emitting elements. For example, the first driving voltage may have a potential that is higher than the potential of the second driving voltage.
[0110] Figure 5 is a plan view showing a unit pixel region of the display device 10 according to an embodiment.
[0111] Referring to Figure 5 , the display area DA of the display panel 300 may include unit pixel regions. For example, the unit pixel regions may include the 1-1 unit pixel region UP11 to the 4-4 unit pixel region UP44 arranged in four rows and four columns. As the resolution of the display device 10 increases, the display area DA may include more unit pixel regions. Thus, according to the resolution of the display device 10, the display area DA may include unit pixel regions arranged in p rows and q columns (p and q are natural numbers).
[0112] Each of the 1-1 unit pixel region UP11 to the 4-4 unit pixel region UP44 may include sub-pixels that display different colors. The sub-pixels may be provided or arranged at intersections of n data lines DL (n is a natural number) and m scan lines SL (m is a natural number). One unit pixel region may accommodate pixel circuits for each of the plurality of sub-pixels. The pixel circuit may include a driving transistor, at least one switching transistor, and at least one capacitor to drive a light-emitting element of each of the plurality of sub-pixels.
[0113] For example, one unit pixel region may include a red sub-pixel, a green sub-pixel, and a blue sub-pixel. Each of the red sub-pixel, the green sub-pixel, and the blue sub-pixel may receive a data signal including gray-scale information of red light, green light, or blue light from the data driver 322, and output light of a corresponding color.
[0114] Each of the 1-1 unit pixel region UP11 to the 4-4 unit pixel region UP44 may include a first sub-pixel to a third sub-pixel. For example, the first sub-pixel may be a red sub-pixel, the second sub-pixel may be a green sub-pixel, and the third sub-pixel may be a blue sub-pixel, but the present disclosure is not limited thereto.
[0115] The first sub-pixel may include a first opening region OR, the second sub-pixel may include a second opening region OG, and the third sub-pixel may include a third opening region OB. The first opening region OR, the second opening region OG, and the third opening region OB may be defined by a pixel defining layer. The light-emitting layer of each of the first to third sub-pixels may be disposed in the corresponding opening region among the first opening region OR, the second opening region OG, and the third opening region OB to emit light of a specific wavelength band. The size of each of the first opening region OR, the second opening region OG, and the third opening region OB may be adjusted to achieve white light by mixing the light emitted from the plurality of light-emitting layers. The first to third sub-pixels may have opening regions of different sizes to achieve white light. For example, the size of the third opening region OB may be larger than the size of the first opening region OR or the second opening region OG, but is not limited thereto.
[0116] The first opening region OR and the second opening region OG of each of the first to fourth unit pixel regions UP11 to UP44 may be arranged side by side on the upper left side of the third opening region OB. The first opening region OR may be disposed on the upper right side of the second opening region OG. For example, the first opening region OR may overlap with the corresponding unit pixel region to output red light.
[0117] A part of the second opening region OG may overlap with the corresponding unit pixel region, and another part of the second opening region OG may overlap with the unit pixel region adjacent to the left side of the corresponding unit pixel region to output green light. For example, the pixel circuit of the second sub-pixel and a part of the second opening region OG of the first to second unit pixel region UP12 may be disposed in the first to second unit pixel region UP12, and another part of the second opening region OG may overlap with the first to first unit pixel region UP11.
[0118] A part of the third opening region OB may overlap with the corresponding unit pixel region, another part of the third opening region OB may overlap with the unit pixel region adjacent to the right side of the corresponding unit pixel region, and the remaining part of the third opening region OB may overlap with the unit pixel region adjacent to the lower side of the corresponding unit pixel region to output blue light. For example, the pixel circuit of the third sub-pixel and a part of the third opening region OB of the first to first unit pixel region UP11 may be disposed in the first to first unit pixel region UP11, another part of the third opening region OB may overlap with the first to second unit pixel region UP12, and the remaining part of the third opening region OB may overlap with the second to first unit pixel region UP21.
[0119] As described above, a part of the opening region of at least one of the first sub-pixel to the third sub-pixel may overlap with the unit pixel region adjacent to the corresponding unit pixel region. A part of at least one of the first opening region OR, the second opening region OG, and the third opening region OB of the sub-pixel may extend beyond the corresponding unit pixel region and overlap with the adjacent unit pixel region. Therefore, the display device 10 can improve the image quality of the display device 10 by maximizing the aperture ratio of the unit pixel region.
[0120] The first opening region OR and the second opening region OG may be disposed between the extension lines of two sides of the third opening region OB. For example, the first opening region OR and the second opening region OG may be disposed side by side between the extension line of the lower left side and the extension line of the upper right side of the third opening region OB. The long side of each of the first opening region OR and the second opening region OG may be parallel to the extension line of the lower left side and the extension line of the upper right side of the third opening region OB. One side of the third opening region OB may face the short side of each of the first opening region OR and the second opening region OG.
[0121] For example, the third opening region OB may have a substantially square shape, and the first opening region OR and the second opening region OG may have a substantially rectangular shape significantly smaller than the third opening region OB, but they are not limited thereto.
[0122] The distance Lr between the center of gravity of the first opening region OR of the 3-1 unit pixel region UP31 and the center of gravity of the first opening region OR of the 3-2 unit pixel region UP32 may be substantially equal to the distance Lr between the center of gravity of the first opening region OR of the 3-1 unit pixel region UP31 and the center of gravity of the first opening region OR of the 4-1 unit pixel region UP41 (Lr = Lr). The distance Lr between the center of gravity of the first opening region OR of the 3-1 unit pixel region UP31 and the center of gravity of the first opening region OR of the 3-2 unit pixel region UP32 may be substantially equal to the distance Lr between the center of gravity of the first opening region OR of the 3-2 unit pixel region UP32 and the center of gravity of the first opening region OR of the 4-2 unit pixel region UP42 (Lr = Lr). Therefore, the first opening regions OR of the 1-1 unit pixel region UP11 to the 4-4 unit pixel region UP44 may be disposed at uniform intervals, thereby achieving uniform image quality.
[0123] The distance Lg between the center of gravity of the second opening region OG of the 3-3 unit pixel region UP33 and the center of gravity of the second opening region OG of the 3-4 unit pixel region UP34 can be approximately equal to the distance Lg between the center of gravity of the second opening region OG of the 3-3 unit pixel region UP33 and the center of gravity of the second opening region OG of the 4-3 unit pixel region UP43 (Lg = Lg). Therefore, the second opening regions OG of the 1-1 unit pixel region UP11 to the 4-4 unit pixel region UP44 can be arranged at uniform intervals, thereby achieving uniform image quality.
[0124] The distance Lb between the center of gravity of the third opening region OB of the 1-3 unit pixel region UP13 and the center of gravity of the third opening region OB of the 1-4 unit pixel region UP14 can be approximately equal to the distance Lb between the center of gravity of the third opening region OB of the 1-3 unit pixel region UP13 and the center of gravity of the third opening region OB of the 2-3 unit pixel region UP23 (Lb = Lb). Therefore, the third opening regions OB of the 1-1 unit pixel region UP11 to the 4-4 unit pixel region UP44 can be arranged at uniform intervals, thereby achieving uniform image quality.
[0125] One side of the first opening region OR, the second opening region OG, or the third opening region OB of at least one of the first sub-pixel to the third sub-pixel can cross or intersect the scanning line SL at a predetermined angle. The first opening region OR and the scanning line SL can cross or intersect each other at a first angle θ1 (neither horizontal nor vertical), the second opening region OG and the scanning line SL can cross or intersect each other at a second angle θ2, and the third opening region OB and the scanning line SL can cross or intersect each other at a third angle θ3. For example, the planar angle (e.g., θ1, θ2, or θ3) between one side of at least one of the first opening region OR, the second opening region OG, and the third opening region OB and the scanning line SL can be about 45 degrees. Each of the long sides and short sides of the first opening region OR and the second opening region OG can cross or intersect the scanning line SL at an angle of about 45 degrees, and one side of the third opening region OB can cross or intersect the scanning line SL at an angle of about 45 degrees.
[0126] As described above, one side of the first opening region OR, the second opening region OG, or the third opening region OB of each sub-pixel can cross or intersect the scanning line SL in a plan view. For example, one side of the first opening region OR, the second opening region OG, or the third opening region OB of each sub-pixel can be not parallel to the scanning line SL in a plan view and can be not cross or intersect the scanning line SL at a right angle in a plan view. Therefore, the display device 10 can minimize the external light reflected at the boundaries of the first opening region OR, the second opening region OG, and the third opening region OB (e.g., between the pixel defining layer and the opening region).
[0127] Figure 6 is a plan view showing a unit pixel region of the display device 10 according to an embodiment. Figure 6 The unit pixel region of can be different from that of in the arrangement of the first opening region OR, the second opening region OG, and the third opening region OB. Configurations the same as those described above will be briefly described or omitted. Figure 5 With reference to
[0128] For each of the first opening region OR1 (or OR2) and the second opening region OG1 (or OG2) of each of the first - first unit pixel region UP11 to the fourth - fourth unit pixel region UP44, they can be arranged side by side on the lower left side of the third opening region OB1 (or OB2). The first opening region OR1 of the first - first unit pixel region UP11 can be arranged on the upper left side of the second opening region OG1 of the first - first unit pixel region UP11, and the first opening region OR2 of the first - second unit pixel region UP12 can be arranged on the lower left side of the second opening region OG2 of the first - second unit pixel region UP12. By dividing two adjacent unit pixel regions into a group, the first opening region OR, the second opening region OG, and the third opening region OB can be regularly arranged. Figure 6
[0129] The first opening region OR1 of the first - first unit pixel region UP11 can be arranged in the first - first unit pixel region UP11 to output red light. The pixel circuit of the first sub - pixel of the first - second unit pixel region UP12 and a part of the first opening region OR2 can be arranged in the first - second unit pixel region UP12, and another part of the first opening region OR2 can overlap with the second - second unit pixel region UP22.
[0130] The pixel circuit of the second sub - pixel of the first - first unit pixel region UP11 and a part of the second opening region OG1 can be arranged in the first - first unit pixel region UP11, and another part of the second opening region OG1 can overlap with the second - first unit pixel region UP21. The second opening region OG2 of the first - second unit pixel region UP12 can be arranged in the first - second unit pixel region UP12 to output green light.
[0131] The pixel circuit of the third sub - pixel of the second - first unit pixel region UP21 and a part of the third opening region OB1 can be arranged in the second - first unit pixel region UP21, another part of the third opening region OB1 can overlap with the first - first unit pixel region UP11, and the remaining part of the third opening region OB1 can overlap with the second - second unit pixel region UP22.
[0132] As described above, a part of the opening region of at least one of the first sub-pixel to the third sub-pixel may overlap with the unit pixel region adjacent to the corresponding unit pixel region. A part of at least one of the first opening region OR, the second opening region OG, and the third opening region OB of the sub-pixel may extend beyond the corresponding unit pixel region and overlap with the adjacent unit pixel region. Therefore, the display device 10 can improve the image quality of the display device 10 by maximizing the aperture ratio of the unit pixel region.
[0133] The first opening region OR1 and the second opening region OG1 of the 1-1 unit pixel region UP11 may be disposed between the extension lines of two sides of the third opening region OB1. For example, the first opening region OR1 and the second opening region OG1 may be disposed side by side between the extension line of the upper left side and the extension line of the lower right side of the third opening region OB1. The long side of each of the first opening region OR1 and the second opening region OG1 may be parallel to the extension line of the upper left side and the extension line of the lower right side of the third opening region OB1. One side of the third opening region OB1 may face the short side of each of the first opening region OR1 and the second opening region OG1.
[0134] The first opening region OR2 and the second opening region OG2 of the 1-2 unit pixel region UP12 may be disposed between the extension lines of two sides of the third opening region OB2. For example, the first opening region OR2 and the second opening region OG2 may be disposed side by side between the extension line of the upper left side and the extension line of the lower right side of the third opening region OB2. The long side of each of the first opening region OR2 and the second opening region OG2 may be parallel to the extension line of the lower left side and the extension line of the upper right side of the third opening region OB2.
[0135] For example, the third opening region OB1 and the third opening region OB2 may have a substantially square shape, and each of the first opening region OR1 and the first opening region OR2 and the second opening region OG1 and the second opening region OG2 may have a substantially rectangular shape significantly smaller than each of the third opening region OB1 and the third opening region OB2, but is not necessarily limited thereto.
[0136] The distance Lr2 between the center of gravity of the first opening region OR1 of the 3-1 unit pixel region UP31 and the center of gravity of the first opening region OR2 of the 3-2 unit pixel region UP32 may be greater than the distance Lr1 between the center of gravity of the first opening region OR1 of the 3-1 unit pixel region UP31 and the center of gravity of the first opening region OR1 of the 4-1 unit pixel region UP41 (Lr2 > Lr1).
[0137] The first opening regions OR1 and OR2 can be regularly arranged by dividing two adjacent unit pixel regions into a group. For example, the distance between the centroid of the first opening region OR1 of the 1-1 unit pixel region UP11 and the centroid of the first opening region OR1 of the 1-3 unit pixel region UP13 can be equal to the distance between the centroid of the first opening region OR1 of the 1-1 unit pixel region UP11 and the centroid of the first opening region OR1 of the 3-1 unit pixel region UP31. Therefore, the first opening regions OR1 and OR2 of the 1-1 unit pixel region UP11 to the 4-4 unit pixel region UP44 can be regularly arranged by dividing two adjacent unit pixel regions into a group, thereby achieving uniform image quality.
[0138] The distance Lg2 between the centroid of the second opening region OG1 of the 3-3 unit pixel region UP33 and the centroid of the second opening region OG2 of the 3-4 unit pixel region UP34 can be greater than the distance Lg1 between the centroid of the second opening region OG1 of the 3-3 unit pixel region UP33 and the centroid of the second opening region OG1 of the 4-3 unit pixel region UP43 (Lg2 > Lg1).
[0139] The second opening regions OG1 and OG2 can be regularly arranged by dividing two adjacent unit pixel regions into a group. For example, the distance between the centroid of the second opening region OG1 of the 1-1 unit pixel region UP11 and the centroid of the second opening region OG1 of the 1-3 unit pixel region UP13 can be equal to the distance between the centroid of the second opening region OG1 of the 1-1 unit pixel region UP11 and the centroid of the second opening region OG1 of the 3-1 unit pixel region UP31. Therefore, the second opening regions OG1 and OG2 of the 1-1 unit pixel region UP11 to the 4-4 unit pixel region UP44 can be regularly arranged by dividing two adjacent unit pixel regions into a group.
[0140] The distance Lb between the centroid of the third opening region OB1 of the 1-3 unit pixel region UP13 and the centroid of the third opening region OB2 of the 1-4 unit pixel region UP14 can be equal to the distance Lb between the centroid of the third opening region OB1 of the 1-3 unit pixel region UP13 and the centroid of the third opening region OB1 of the 2-3 unit pixel region UP23 (Lb = Lb). Therefore, the third opening regions OB1 and OB2 of the 1-1 unit pixel region UP11 to the 4-4 unit pixel region UP44 can be set at uniform intervals, thereby achieving uniform image quality.
[0141] One side of the first opening region OR, the second opening region OG, or the third opening region OB of at least one of the first sub-pixel to the third sub-pixel may cross or intersect the scan line SL at a predetermined angle. The first opening region OR and the scan line SL may cross or intersect each other at a first angle θ1 (neither horizontal nor vertical), the second opening region OG and the scan line SL may cross or intersect each other at a second angle θ2, and the third opening region OB and the scan line SL may cross or intersect each other at a third angle θ3. For example, the planar angle (e.g., θ1, θ2, or θ3) between one side of at least one of the first opening region OR, the second opening region OG, and the third opening region OB and the scan line SL may be about 45 degrees. Each of the long sides and short sides of the first opening region OR and the second opening region OG may cross or intersect the scan line SL at an angle of about 45 degrees, and one side of the third opening region OB may cross or intersect the scan line SL at an angle of about 45 degrees.
[0142] As described above, in a plan view, one side of the first opening region OR, the second opening region OG, or the third opening region OB of each sub-pixel may cross or intersect the scan line SL. For example, one side of the first opening region OR, the second opening region OG, or the third opening region OB of each sub-pixel may not be parallel to the scan line SL in the plan view, and may not cross or intersect the scan line SL at a right angle in the plan view. Therefore, the display device 10 can minimize the external light reflected at the boundaries of the first opening region OR, the second opening region OG, and the third opening region OB (e.g., between the pixel defining layer and the opening region).
[0143] Figure 7 is a plan view showing a unit pixel region of the display device 10 according to an embodiment. Figure 7 The unit pixel region of can be in Figure 6 The unit pixel region of includes a first spacer S1 and a second spacer S2. Configurations that are the same as those described above will be briefly described or omitted.
[0144] Referring to Figure 7 , each of the first - 1 unit pixel region UP11 to the fourth - 4 unit pixel region UP44 may include a first sub - pixel to a third sub - pixel.
[0145] The first sub - pixel of the first - 1 unit pixel region UP11 and the first sub - pixel of the first - 3 unit pixel region UP13 may include a first opening region OR1, the second sub - pixel may include a second opening region OG1, and the third sub - pixel may include a third opening region OB1.
[0146] The first sub-pixel of the 1st - 2nd unit pixel region UP12 and the first sub-pixel of the 1st - 4th unit pixel region UP14 may include a first opening region OR2, the second sub-pixel may include a second opening region OG2, and the third sub-pixel may include a third opening region OB2.
[0147] The first opening region OR1, the second opening region OG1, and the third opening region OB1 of the 1st - 1st unit pixel region UP11 and the first opening region OR2, the second opening region OG2, and the third opening region OB2 of the 1st - 2nd unit pixel region UP12 may be arranged in the same or similar manner as Figure 6 the first opening region OR1, the first opening region OR2, the second opening region OG1, the second opening region OG2, the third opening region OB1, and the third opening region OB2 shown.
[0148] The distance Lb2 between the center of gravity of the third opening region OB1 of the 1st - 3rd unit pixel region UP13 and the center of gravity of the third opening region OB2 of the 1st - 4th unit pixel region UP14 may be greater than the distance Lb1 between the center of gravity of the third opening region OB1 of the 1st - 3rd unit pixel region UP13 and the center of gravity of the third opening region OB1 of the 2nd - 3rd unit pixel region UP23 (Lb2 > Lb1).
[0149] The 1st - 1st unit pixel region UP11 may include a first spacer S1. The first spacer S1 may be arranged between the first opening region OR1 and the third opening region OB1. For example, one end of the first spacer S1 may be arranged between the first opening region OR1 and the third opening region OB1, and the other end of the first spacer S1 may extend from one end toward the upper left side.
[0150] The long side direction of the first spacer S1 may be substantially perpendicular to the long side direction of the first opening region OR1 or the second opening region OG1. The first spacer S1 can reduce the impact transmitted to the 1st - 1st unit pixel region UP11 and improve the durability of the 1st - 1st unit pixel region UP11.
[0151] The 1st - 2nd unit pixel region UP12 may include a second spacer S2. The second spacer S2 may be arranged on the upper left side of the second opening region OG2 and the third opening region OB2. For example, one end of the second spacer S2 may be arranged on the upper left side of the second opening region OG2, and the other end of the second spacer S2 may be arranged on the upper left side of the third opening region OB2. One end of the second spacer S2 may be arranged between the second opening region OG2 of the 1st - 2nd unit pixel region UP12 and the third opening region OB1 of the 1st - 1st unit pixel region UP11.
[0152] The long side direction of the second spacer S2 can be substantially perpendicular to the long side direction of the first opening region OR2 or the second opening region OG2. The long side direction of the second spacer S2 can be substantially perpendicular to the long side direction of the first spacer S1. The second spacer S2 can reduce the impact transmitted to the 1-2 unit pixel region UP12 and improve the durability of the 1-2 unit pixel region UP12.
[0153] The distance Ls between the center of gravity of the first spacer S1 in the 2-3 unit pixel region UP23 and the center of gravity of the second spacer S2 in the 2-4 unit pixel region UP24 can be equal to the distance Ls between the center of gravity of the first spacer S1 in the 2-3 unit pixel region UP23 and the center of gravity of the first spacer S1 in the 3-3 unit pixel region UP33 (Ls = Ls). By grouping two adjacent unit pixel regions, the first spacer S1 and the second spacer S2 can be regularly arranged. Therefore, the first spacer S1 or the second spacer S2 in each of the 1-1 unit pixel region UP11 to the 4-4 unit pixel region UP44 can stably support the 1-1 unit pixel region UP11 to the 4-4 unit pixel region UP44, thereby improving the durability of the display device 10.
[0154] Each of the long sides of the first spacer S1 and the second spacer S2 can cross or intersect the scan line SL at a predetermined angle (neither horizontal nor vertical). The planar angle between the long side of the first spacer S1 or the second spacer S2 and the scan line SL can be about 45 degrees.
[0155] As described above, in a plan view, one side of the first opening region OR, the second opening region OG, or the third opening region OB of each unit pixel region can cross or intersect the scan line SL. In a plan view, the first spacer S1 or the second spacer S2 of each unit pixel region can cross or intersect the scan line SL. Therefore, the first spacer S1 and the second spacer S2 can improve the durability and reliability of the display device 10 without reducing the aperture ratio of the first opening region OR, the second opening region OG, and the third opening region OB.
[0156] It should be noted that the above description includes a third direction and a fourth direction in addition to the first direction and the second direction. For example, one side of the opening region of at least one sub-pixel among the plurality of sub-pixels can extend in a third direction inclined with respect to each of the first direction and the second direction. The fourth direction can be substantially perpendicular to the third direction.
[0157] Figure 8 is a schematic cross-sectional view taken along the Figure 7 line I-I'.
[0158] Referring to Figure 8, the display panel 300 may include a first substrate SUB1, a buffer layer BF, a first transistor T1, a second transistor T2, and a third transistor T3, a gate insulating layer GI, an interlayer insulating layer ILD, a passivation layer PAS, a first connection electrode CE1 and a second connection electrode CE2, a planarization layer OC, a first light-emitting element EL1 and a second light-emitting element EL2, a pixel defining layer PDL, a first spacer S1, a packaging layer TFE, and a second substrate SUB2.
[0159] The first substrate SUB1 may be a base substrate and may be made of an insulating material such as a polymer resin. For example, the first substrate SUB1 may be a rigid substrate. In an example, the first substrate SUB1 may be a flexible substrate that can be bent, folded, or curled. In the case where the first substrate SUB1 is a flexible substrate, the first substrate SUB1 may be formed of polyimide (PI), but is not limited thereto.
[0160] The buffer layer BF may be disposed on the first substrate SUB1. The buffer layer BF may be formed of an inorganic layer that can prevent the penetration of air or moisture. For example, the buffer layer BF may include inorganic layers that can be alternately stacked. The buffer layer BF may be formed of a multilayer in which one or more inorganic layers selected from a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, and an aluminum oxide layer can be alternately stacked, but is not limited thereto.
[0161] The first transistor T1 may be disposed on the buffer layer BF and may constitute a pixel circuit of a first sub-pixel. For example, the first transistor T1 may be a driving transistor or a switching transistor of the first sub-pixel. The first transistor T1 may include a semiconductor layer ACT1, a gate electrode GE1, a source electrode SE1, and a drain electrode DE1.
[0162] The semiconductor layer ACT1 may be disposed or arranged on the buffer layer BF. The semiconductor layer ACT1 may overlap with the gate electrode GE1, the source electrode SE1, and the drain electrode DE1. The semiconductor layer ACT1 may be in direct contact with the source electrode SE1 and the drain electrode DE1 and may face the gate electrode GE1 with the gate insulating layer GI interposed therebetween.
[0163] The gate electrode GE1 may be disposed on the gate insulating layer GI. The gate electrode GE1 may overlap with the semiconductor layer ACT1 with the gate insulating layer GI interposed therebetween.
[0164] The source electrode SE1 and the drain electrode DE1 can be spaced apart from each other on the interlayer insulating layer ILD. The source electrode SE1 can be in contact with one end portion of the semiconductor layer ACT1 through a contact hole provided or disposed in the gate insulating layer GI and the interlayer insulating layer ILD. The drain electrode DE1 can be in contact with the other end portion of the semiconductor layer ACT1 through a contact hole provided or disposed in the gate insulating layer GI and the interlayer insulating layer ILD. The drain electrode DE1 can be electrically connected to the anode electrode AND1 of the first light-emitting element EL1 through the first connection electrode CE1.
[0165] The second transistor T2 can be provided on the buffer layer BF and can constitute the pixel circuit of the second sub-pixel. For example, the second transistor T2 can be the driving transistor or the switching transistor of the second sub-pixel. The second transistor T2 can include a semiconductor layer ACT2, a gate electrode GE2, a source electrode SE2, and a drain electrode DE2.
[0166] The third transistor T3 can be provided on the buffer layer BF and can constitute the pixel circuit of the third sub-pixel. For example, the third transistor T3 can be the driving transistor or the switching transistor of the third sub-pixel. The third transistor T3 can include a semiconductor layer ACT3, a gate electrode GE3, a source electrode SE3, and a drain electrode DE3. The drain electrode DE3 of the third transistor T3 can be electrically connected to the anode electrode AND2 of the second light-emitting element EL2 through the second connection electrode CE2.
[0167] The gate insulating layer GI can be provided or disposed on the semiconductor layer ACT1, the semiconductor layer ACT2, and the semiconductor layer ACT3. For example, the gate insulating layer GI can be provided on the semiconductor layer ACT1, the semiconductor layer ACT2, the semiconductor layer ACT3, and the buffer layer BF, and can insulate the semiconductor layer ACT1, the semiconductor layer ACT2, and the semiconductor layer ACT3 from the gate electrodes GE1, GE2, and GE3. The gate insulating layer GI can include contact holes through which the source electrodes SE1, SE2, and SE3 can pass and contact holes through which the drain electrodes DE1, DE2, and DE3 can pass.
[0168] The interlayer insulating layer ILD can be provided on the gate electrodes GE1, GE2, and GE3. For example, the interlayer insulating layer ILD can include contact holes through which the source electrodes SE1, SE2, and SE3 can pass and contact holes through which the drain electrodes DE1, DE2, and DE3 can pass. The contact holes of the interlayer insulating layer ILD can be electrically connected to the contact holes of the gate insulating layer GI.
[0169] A passivation layer PAS may be provided or disposed on the first transistor T1, the second transistor T2, and the third transistor T3 to protect the first transistor T1, the second transistor T2, and the third transistor T3. For example, the passivation layer PAS may include contact holes through which a first connection electrode CE1 and a second connection electrode CE2 may pass.
[0170] A planarization layer OC may be provided or disposed on the passivation layer PAS to planarize the upper ends of the first transistor T1, the second transistor T2, and the third transistor T3. For example, the planarization layer OC may include contact holes through which an anode electrode AND1 of a first light-emitting element EL1 and an anode electrode AND2 of a second light-emitting element EL2 may pass.
[0171] The first light-emitting element EL1 may be provided or disposed on the first transistor T1. The first light-emitting element EL1 may include an anode electrode AND1, a light-emitting layer E1, and a cathode electrode CAT.
[0172] The anode electrode AND1 may be provided or disposed on the planarization layer OC. For example, the anode electrode AND1 may be arranged to overlap a first opening region OR defined by a pixel defining layer PDL. The anode electrode AND1 may be electrically connected to the drain electrode DE1 of the first transistor T1 through the first connection electrode CE1.
[0173] The light-emitting layer E1 may be provided or disposed on the anode electrode AND1. Within the spirit and scope of the present disclosure, the light-emitting layer E1 may include a hole injection layer, a hole transport layer, a light-receiving layer, an electron blocking layer, an electron transport layer, an electron injection layer, and similar layers. For example, the light-emitting layer E1 may be an organic light-emitting layer made of an organic material, but is not necessarily limited thereto. In the case where the light-emitting layer E1 is an organic light-emitting layer, when the first transistor T1 applies a predetermined voltage to the anode electrode AND1 of the first light-emitting element EL1, and the cathode electrode CAT of the first light-emitting element EL1 receives a common voltage or a cathode voltage, holes and electrons can both move through the hole transport layer and the electron transport layer to the organic light-emitting layer E1, and the holes and electrons can combine with each other in the organic light-emitting layer E1 to emit light.
[0174] The cathode electrode CAT may be provided or disposed on the light-emitting layer E1. For example, the cathode electrode CAT may be implemented as an electrode common to all sub-pixels SP without distinguishing each sub-pixel SP. In Figure 7 and Figure 8 , the cathode electrode CAT may be disposed on the light-emitting layer E1 and the light-emitting layer E2 in the first opening region OR, the second opening region OG, and the third opening region OB, and may be disposed on the pixel defining layer PDL or the first spacer S1 and the second spacer S2 in the non-opening region.
[0175] The second light-emitting element EL2 may be provided or disposed on the third transistor T3. The second light-emitting element EL2 may include an anode electrode AND2, a light-emitting layer E2, and a cathode electrode CAT.
[0176] The anode electrode AND2 may be provided or disposed on the planarization layer OC. For example, the anode electrode AND2 may be provided to overlap with a third opening region OB defined by the pixel defining layer PDL. The anode electrode AND2 may be electrically connected to the drain electrode DE3 of the third transistor T3 through a second connection electrode CE2. The light-emitting layer E2 may be provided or disposed on the anode electrode AND2, and the cathode electrode CAT may be provided or disposed on the light-emitting layer E2.
[0177] The pixel defining layer PDL may define a first opening region OR, a second opening region OG, and a third opening region OB. The pixel defining layer PDL may separate and insulate the anode electrode AND1 of the first light-emitting element EL1 and the anode electrode AND2 of the second light-emitting element EL2, respectively.
[0178] For example, the pixel defining layer PDL may include a light-absorbing material, such as a black pigment or a black dye that can absorb light. The pixel defining layer PDL may include a light-absorbing material so as to minimize external light reflected at the boundary of the opening region.
[0179] The first spacer S1 may be provided on the pixel defining layer PDL. The first spacer S1 may maintain a constant distance between the first substrate SUB1 and the second substrate SUB2. The first spacer S1 may reduce the impact transmission between the first substrate SUB1 and the second substrate SUB2. For example, the first spacer S1 may include a material having excellent shock-absorbing properties and flexibility to improve the durability of the display device 10.
[0180] The encapsulation layer TFE may be provided on the cathode electrode CAT to cover or overlap the first transistor T1, the second transistor T2, the third transistor T3, the first light-emitting element EL1, and the second light-emitting element EL2. The encapsulation layer TFE may prevent oxygen or moisture from penetrating into the first light-emitting element EL1 and the second light-emitting element EL2.
[0181] The second substrate SUB2 may be disposed on the encapsulation layer TFE to face the first substrate SUB1. Within the spirit and scope of the present disclosure, the second substrate SUB2 may prevent the first transistor T1, the second transistor T2, the third transistor T3, and the first light-emitting element EL1 and the second light-emitting element EL2 from being affected by external moisture, air, and the like. The second substrate SUB2 may be supported by the first spacer S1. For example, the second substrate SUB2 may be a rigid substrate. In an example, the second substrate SUB2 may be a flexible substrate that can be bent, folded, or curled. In the case where the second substrate SUB2 is a flexible substrate, the second substrate SUB2 may be formed of polyimide (PI), but is not necessarily limited thereto.
[0182] Figure 9 is a plan view showing a unit pixel region of the display device 10 according to an embodiment. Figure 10 is Figure 9 an enlarged view of the unit pixel region.
[0183] Referring to Figure 9 and Figure 10 , the first opening region OR1 (or OR2) and the second opening region OG1 (or OG2) of each of the first to fourth unit pixel regions UP11 to UP44 may be arranged side by side on the lower left side of the third opening region OB1 (or OB2). The first opening region OR1 of the first unit pixel region UP11 may be disposed on the upper left side of the second opening region OG1 of the first unit pixel region UP11, and the first opening region OR2 of the first unit pixel region UP12 may be disposed on the lower left side of the second opening region OG2 of the first unit pixel region UP12. By dividing two adjacent unit pixel regions into a group, the first opening region OR, the second opening region OG, and the third opening region OB can be regularly arranged.
[0184] The first opening region OR1 of the first unit pixel region UP11 may be disposed in the first unit pixel region UP11 to output red light. The pixel circuit of the first sub-pixel and a part of the first opening region OR2 of the first unit pixel region UP12 may be disposed in the first unit pixel region UP12, another part of the first opening region OR2 may overlap with the first unit pixel region UP11, and the remaining part of the first opening region OR2 may overlap with the second unit pixel region UP22.
[0185] The first opening region OR1 of the 1-1 unit pixel region UP11 may include a central portion OR1a, a first protrusion OR1b, a second protrusion OR1c, and a third protrusion OR1d. The first protrusion OR1b may protrude from the central portion OR1a toward the upper left side. The second protrusion OR1c may protrude from the central portion OR1a toward the third opening region OB1. The third protrusion OR1d may protrude from the central portion OR1a in a direction opposite to that of the second protrusion OR1c.
[0186] The first opening region OR2 of the 1-2 unit pixel region UP12 may include a central portion OR2a, a first protrusion OR2b, a second protrusion OR2c, and a third protrusion OR2d. The first protrusion OR2b may protrude from the central portion OR2a toward the lower left side. The second protrusion OR2c may protrude from the central portion OR2a toward the upper left side. The third protrusion OR2d may protrude from the central portion OR2a in a direction opposite to that of the second protrusion OR2c.
[0187] The pixel circuit of the second sub-pixel of the 1-1 unit pixel region UP11 and a part of the second opening region OG1 may be disposed in the 1-1 unit pixel region UP11, and another part of the second opening region OG1 may overlap with the 2-1 unit pixel region UP21. The second opening region OG2 of the 1-2 unit pixel region UP12 may be disposed in the 1-2 unit pixel region UP12 to output green light.
[0188] The second opening region OG1 of the 1-1 unit pixel region UP11 may include a central portion OG1a, a first protrusion OG1b, a second protrusion OG1c, and a third protrusion OG1d. The first protrusion OG1b may protrude from the central portion OG1a toward the lower right side. The second protrusion OG1c may protrude from the central portion OG1a toward the third opening region OB1. The third protrusion OG1d may protrude from the central portion OG1a in a direction opposite to that of the second protrusion OG1c.
[0189] The second opening region OG2 of the 1-2 unit pixel region UP12 may include a central portion OG2a, a first protrusion OG2b, a second protrusion OG2c, and a third protrusion OG2d. The first protrusion OG2b may protrude from the central portion OG2a toward the upper right side. The second protrusion OG2c may protrude from the central portion OR2a toward the upper left side. The third protrusion OG2d may protrude from the central portion OG2a in a direction opposite to that of the second protrusion OG2c.
[0190] The pixel circuit of the third sub-pixel in the second first unit pixel region UP21 and a part of the third opening region OB1 may be disposed in the second first unit pixel region UP21. Another part of the third opening region OB1 may overlap with the first first unit pixel region UP11, and the remaining part of the third opening region OB1 may overlap with the second second unit pixel region UP22.
[0191] The third opening region OB1 of the first first unit pixel region UP11 may include a central portion OB1a and a first protruding portion OB1b, a second protruding portion OB1c, a third protruding portion OB1d, and a fourth protruding portion OB1e. The first protruding portion OB1b may protrude from the central portion OB1a toward the first opening region OR1 and the second opening region OG1. The second protruding portion OB1c may protrude from the central portion OB1a toward the lower right side. The third protruding portion OB1d may protrude from the central portion OB1a in a direction opposite to that of the first protruding portion OB1b. The fourth protruding portion OB1e may protrude from the central portion OB1a in a direction opposite to that of the second protruding portion OB1c.
[0192] The third opening region OB2 of the first second unit pixel region UP12 may include a central portion OB2a and a first protruding portion OB2b, a second protruding portion OB2c, a third protruding portion OB2d, and a fourth protruding portion OB2e. The first protruding portion OB2b may protrude from the central portion OB2a toward the second opening region OG2. The second protruding portion OB2c may protrude from the central portion OB2a toward the lower right side. The third protruding portion OB2d may protrude from the central portion OB2a in a direction opposite to that of the first protruding portion OB2b. The fourth protruding portion OB2e may protrude from the central portion OB2a in a direction opposite to that of the second protruding portion OB2c.
[0193] As described above, the first opening region OR1 of the first first unit pixel region UP11 may include a central portion OR1a and a first protruding portion OR1b, a second protruding portion OR1c, and a third protruding portion OR1d. The second opening region OG1 may include a central portion OG1a and a first protruding portion OG1b, a second protruding portion OG1c, and a third protruding portion OG1d, and the third opening region OB1 may include a central portion OB1a and a first protruding portion OB1b, a second protruding portion OB1c, a third protruding portion OB1d, and a fourth protruding portion OB1e, so as to maximize the aperture ratio of the unit pixel region. A part of at least one of the first opening region OR, the second opening region OG, and the third opening region OB of the sub-pixel may extend beyond the corresponding unit pixel region and overlap with an adjacent unit pixel region. Therefore, the display device 10 may improve the image quality of the display device 10 by maximizing the aperture ratio of the unit pixel region.
[0194] The first opening region OR1 and the second opening region OG1 of the 1-1 unit pixel region UP11 may be disposed between the extension lines of two sides of the third opening region OB1. For example, the first opening region OR1 and the second opening region OG1 may be disposed side by side between the extension line of the upper left side and the extension line of the lower right side of the third opening region OB1. The long sides of each of the first opening region OR1 and the second opening region OG1 may be substantially parallel to the extension line of the upper left side and the extension line of the lower right side of the third opening region OB1. The first protrusion OB1b of the third opening region OB1 may face the second protrusion OR1c of the first opening region OR1 and the second protrusion OG1c of the second opening region OG1.
[0195] For example, the central portion OB1a of the third opening region OB1 may have a substantially square shape, and each of the central portion OR1a of the first opening region OR1 and the central portion OG1a of the second opening region OG1 may have a substantially rectangular shape smaller than the central portion OB1a of the third opening region OB1, but they are not limited thereto.
[0196] The 1-1 unit pixel region UP11 may include a first spacer S1 and a second spacer S2. The first spacer S1 may be disposed on the upper side of the first opening region OR1 and may be disposed on the left side of the third opening region OB1. The second spacer S2 may be disposed on the right side of the second opening region OG1 and may be disposed on the lower side of the third opening region OB1. The first spacer S1 and the second spacer S2 may be spaced apart from each other with the first opening region OR1, the second opening region OG1, and the third opening region OB1 therebetween, thereby stably supporting the 1-1 unit pixel region UP11 and improving durability.
[0197] The 1-2 unit pixel region UP12 may include a third spacer S3 and a fourth spacer S4. The third spacer S3 may be disposed on the upper side of the second opening region OG2 and may be disposed on the left side of the third opening region OB2. The fourth spacer S4 may be disposed on the right side of the second opening region OG2 and may be disposed on the lower side of the third opening region OB2. The third spacer S3 and the fourth spacer S4 may be spaced apart from each other with the first opening region OR2, the second opening region OG2, and the third opening region OB2 therebetween, thereby stably supporting the 1-2 unit pixel region UP12 and improving durability.
[0198] The distance Lr2 between the center of gravity of the first opening region OR1 of the 3-1 unit pixel region UP31 and the center of gravity of the first opening region OR2 of the 3-2 unit pixel region UP32 may be greater than the distance Lr1 between the center of gravity of the first opening region OR1 of the 3-1 unit pixel region UP31 and the center of gravity of the first opening region OR1 of the 4-1 unit pixel region UP41 (Lr2 > Lr1).
[0199] The first opening regions OR1 and OR2 can be regularly arranged by grouping two adjacent unit pixel regions. For example, the distance between the centroid of the first opening region OR1 of the 1-1 unit pixel region UP11 and the centroid of the first opening region OR1 of the 1-3 unit pixel region UP13 can be equal to the distance between the centroid of the first opening region OR1 of the 1-1 unit pixel region UP11 and the centroid of the first opening region OR1 of the 3-1 unit pixel region UP31. Therefore, the first opening regions OR1 and OR2 of the 1-1 unit pixel region UP11 to the 4-4 unit pixel region UP44 can be regularly arranged by grouping two adjacent unit pixel regions, thereby achieving uniform image quality.
[0200] The distance Lg2 between the centroid of the second opening region OG1 of the 3-3 unit pixel region UP33 and the centroid of the second opening region OG2 of the 3-4 unit pixel region UP34 can be greater than the distance Lg1 between the centroid of the second opening region OG1 of the 3-3 unit pixel region UP33 and the centroid of the second opening region OG1 of the 4-3 unit pixel region UP43 (Lg2 > Lg1).
[0201] The second opening regions OG1 and OG2 can be regularly arranged by grouping two adjacent unit pixel regions. For example, the distance between the centroid of the second opening region OG1 of the 1-1 unit pixel region UP11 and the centroid of the second opening region OG1 of the 1-3 unit pixel region UP13 can be equal to the distance between the centroid of the second opening region OG1 of the 1-1 unit pixel region UP11 and the centroid of the second opening region OG1 of the 3-1 unit pixel region UP31. Therefore, the second opening regions OG1 and OG2 of the 1-1 unit pixel region UP11 to the 4-4 unit pixel region UP44 can be regularly arranged by grouping two adjacent unit pixel regions, thereby achieving uniform image quality.
[0202] The distance Lb between the centroid of the third opening region OB1 of the 1-3 unit pixel region UP13 and the centroid of the third opening region OB2 of the 1-4 unit pixel region UP14 can be equal to the distance Lb between the centroid of the third opening region OB1 of the 1-3 unit pixel region UP13 and the centroid of the third opening region OB1 of the 2-3 unit pixel region UP23 (Lb = Lb). Therefore, the third opening regions OB1 and OB2 of the 1-1 unit pixel region UP11 to the 4-4 unit pixel region UP44 can be arranged at uniform intervals, thereby achieving uniform image quality.
[0203] The distance Ls between the center of gravity of the third spacer S3 in the second - second unit pixel region UP22 and the center of gravity of the first spacer S1 in the second - third unit pixel region UP23 may be equal to the distance Ls between the center of gravity of the third spacer S3 in the second - second unit pixel region UP22 and the center of gravity of the third spacer S3 in the third - second unit pixel region UP32 (Ls = Ls). The first spacer S1, the second spacer S2, the third spacer S3, and the fourth spacer S4 may be arranged at uniform intervals, thereby stably supporting the first - first unit pixel region UP11 to the fourth - fourth unit pixel region UP44 and improving the durability of the display device 10.
[0204] One side of the first opening region OR, the second opening region OG, or the third opening region OB of at least one of the first sub - pixel to the third sub - pixel may cross or intersect the scan line SL at a predetermined angle. The long sides of the central portions OR1a and OR2a of the first opening region OR1 and the first opening region OR2 may cross or intersect the scan line SL at a predetermined angle (non - horizontal or non - vertical). The long sides of the central portions OG1a and OG2a of the second opening region OG1 and the second opening region OG2 may cross or intersect the scan line SL at a predetermined angle (non - horizontal or non - vertical). One side of the central portions OB1a and OB2a of the third opening region OB1 and the third opening region OB2 may cross or intersect the scan line SL at a predetermined angle (non - horizontal or non - vertical).
[0205] As described above, one side of the first opening region OR, the second opening region OG, or the third opening region OB of each sub - pixel may not be parallel to the scan line SL in a plan view and may not cross or intersect the scan line SL at a right angle in the plan view. Thus, the display device 10 can minimize the external light reflected at the boundaries of the first opening region OR, the second opening region OG, and the third opening region OB (e.g., between the pixel defining layer and the opening region).
[0206] Figure 11 is a plan view showing a unit pixel region of the display device 10 according to an embodiment. Figure 12 is Figure 11 an enlarged view of the unit pixel region. Figure 11 and Figure 12 The unit pixel regions of and may be different in the structure of the third opening region OB1 and the third opening region OB2 from Figure 7 the unit pixel regions of. The structures that are the same as those described above will be briefly described or omitted.
[0207] Referring to Figure 11 and Figure 12, the first opening region OR1 (or OR2) and the second opening region OG1 (or OG2) of each of the first to fourth unit pixel regions UP11 to UP44 can be arranged side by side on the lower left side of the third opening region OB1 (or OB2). The first opening region OR1 of the first unit pixel region UP11 can be arranged on the upper left side of the second opening region OG1 of the first unit pixel region UP11, and the first opening region OR2 of the second unit pixel region UP12 can be arranged on the lower left side of the second opening region OG2 of the second unit pixel region UP12. By dividing two adjacent unit pixel regions into a group, the first opening region OR, the second opening region OG, and the third opening region OB can be regularly arranged.
[0208] The third opening region OB1 of the first unit pixel region UP11 may include a central portion OB1a and a protruding portion OB1b protruding downward from the lower corner of the central portion OB1a. One end of the protruding portion OB1b of the third opening region OB1 of the first unit pixel region UP11 may face the second opening region OG1 of the first unit pixel region UP11, and the other end substantially perpendicular to one end of the protruding portion OB1b of the third opening region OB1 may face the first opening region OR2 of the second unit pixel region UP12.
[0209] As described above, the third opening region OB1 (or OB2) of each of the first unit pixel region UP11 to the fourth unit pixel region UP44 may include a central portion OB1a (or OB2a) and a protruding portion OB1b (or OB2b), thereby maximizing the aperture ratio of the unit pixel region.
[0210] For example, the central portion OB1a of the third opening region OB1 may have a substantially square shape, and each of the first opening region OR1 and the second opening region OG1 may have a substantially rectangular shape smaller than the central portion OB1a of the third opening region OB1, but it is not limited thereto.
[0211] The first unit pixel region UP11 may include a first spacer S1. The first spacer S1 may be arranged between the first opening region OR1 and the third opening region OB1. For example, the first spacer S1 may be surrounded by or adjacent to the first opening region OR1, one end of the protruding portion OB1b of the third opening region OB1, and the left corner of the third opening region OB1. The first spacer S1 can reduce the impact transmitted to the first unit pixel region UP11.
[0212] The first to second unit pixel regions UP12 may include a second spacer S2. The second spacer S2 may be disposed at the upper left side of the second opening region OG2 and the third opening region OB2. For example, the second spacer S2 may be surrounded by or adjacent to the right corner of the central portion OB1a of the third opening region OB1 of the 1-1 unit pixel region UP11, the other end of the protruding portion OB1b of the third opening region OB1 of the 1-1 unit pixel region UP11, the second opening region OG2 of the 1-2 unit pixel region UP12, and the left corner of the central portion OB2a of the third opening region OB2 of the 1-2 unit pixel region UP12. The second spacer S2 may mitigate the impact transmitted to the 1-2 unit pixel region UP12.
[0213] Figure 13 is a plan view showing a unit pixel region of the display device 10 according to an embodiment. Figure 13 The unit pixel region may be different from that of Figure 7 in terms of the structure of the third opening region OB1 and the third opening region OB2, and the first spacer S1 and the second spacer S2. The structures identical to the above will be briefly described or omitted.
[0214] Referring to Figure 13 , the first opening region OR1 (or OR2) and the second opening region OG1 (or OG2) of each of the 1-1 unit pixel region UP11 to the 4-4 unit pixel region UP44 may be arranged side by side at the lower left side of the third opening region OB1 (or OB2). The first opening region OR1 of the 1-1 unit pixel region UP11 may be disposed at the upper left side of the second opening region OG1 of the 1-1 unit pixel region UP11, and the first opening region OR2 of the 1-2 unit pixel region UP12 may be disposed at the lower left side of the second opening region OG2 of the 1-2 unit pixel region UP12. By dividing two adjacent unit pixel regions into a group, the first opening region OR, the second opening region OG, and the third opening region OB may be regularly arranged.
[0215] The third opening region OB1 of the 1-1 unit pixel region UP11 may include an end portion OB1a extending from the center of gravity toward the upper left side and another end portion OB1b extending from the center of gravity toward the upper right side. The end portion OB1a extending from the center of gravity toward the upper left side and the other end portion OB1b extending from the center of gravity toward the upper right side may form a substantially V-shaped shape in a plan view. The first opening region OR1 and the second opening region OG1 of the 1-1 unit pixel region UP11 may be disposed at the lower left side of one end portion OB1a of the third opening region OB1, and the first opening region OR2 and the second opening region OG2 of the 1-2 unit pixel region UP12 may be disposed at the lower right side of the other end portion OB1b of the third opening region OB1 of the 1-1 unit pixel region UP11.
[0216] As described above, each of the third opening regions OB1 (or OB2) in the first-to-first unit pixel region UP11 to the fourth-to-fourth unit pixel region UP44 may include one end OB1a (or OB2a) and the other end OB1b (or OB2b), thereby maximizing the aperture ratio of the unit pixel region.
[0217] The second-to-first unit pixel region UP21 may include a first spacer S1. The first spacer S1 of the second-to-first unit pixel region UP21 may be surrounded by or adjacent to the second opening region OG1 and the third opening region OB1 of the first-to-first unit pixel region UP11, the first opening region OR2 of the first-to-second unit pixel region UP12, and the third opening region OB1 of the second-to-first unit pixel region UP21. The first spacer S1 may mitigate the impact transmitted to the second-to-first unit pixel region UP21.
[0218] The second-to-second unit pixel region UP22 may include a second spacer S2. The second spacer S2 of the second-to-second unit pixel region UP22 may be surrounded by or adjacent to the second opening region OG2 and the third opening region OB2 of the first-to-second unit pixel region UP12, the first opening region OR1 of the first-to-third unit pixel region UP13, and the third opening region OB2 of the second-to-second unit pixel region UP22. The second spacer S2 may mitigate the impact transmitted to the second-to-second unit pixel region UP22.
[0219] It should be understood that the arrangement of the spacers with respect to the unit pixel regions and the opening regions is not limited to the above description and illustration. Other arrangements and configurations are also within the spirit and scope of the present disclosure.
[0220] Figure 14 is a plan view showing the unit pixel regions of the display device 10 according to an embodiment. Figure 15 is a plan view showing the unit pixel regions of the display device 10 according to an embodiment. Figure 16 is a plan view showing the unit pixel regions of the display device 10 according to an embodiment. Figure 17 is a plan view showing the unit pixel regions of the display device 10 according to an embodiment. Figures 14 to 17 The unit pixel regions may differ in the inclination of the first opening region OR, the second opening region OG, and the third opening region OB from Figure 5 the unit pixel regions. The configurations identical to those described above will be briefly described or omitted.
[0221] Refer to Figures 14 to 17 , each of the first-to-first unit pixel region UP11 to the second-to-second unit pixel region UP22 may include first to third sub-pixels.
[0222] In Figure 14In [description], the planar angle θ1 between the long side of the first opening region OR and the scanning line SL can be about 30 degrees. The planar angle θ2 between the long side of the second opening region OG and the scanning line SL can be about 30 degrees. The planar angle θ3 between one side of the third opening region OB and the scanning line SL can be about 30 degrees.
[0223] In Figure 15 [description], the planar angle θ1 between the long side of the first opening region OR1 of the 1-1 unit pixel region UP11 and the scanning line SL can be about 30 degrees. The planar angle θ2 between the long side of the second opening region OG1 of the 1-1 unit pixel region UP11 and the scanning line SL can be about 30 degrees. The planar angle θ3 between one side of the third opening region OB1 and the scanning line SL can be about 30 degrees.
[0224] The planar angle θ4 between the long side of the first opening region OR2 of the 1-2 unit pixel region UP12 and the scanning line SL can be about 60 degrees. The planar angle θ5 between the long side of the second opening region OG2 of the 1-2 unit pixel region UP12 and the scanning line SL can be about 60 degrees.
[0225] In Figure 16 [description], the planar angle θ1 between the long side of the first opening region OR and the scanning line SL can be about 60 degrees. The planar angle θ2 between the long side of the second opening region OG and the scanning line SL can be about 60 degrees. The planar angle θ3 between one side of the third opening region OB and the scanning line SL can be about 60 degrees.
[0226] In Figure 17 [description], the planar angle θ1 between the long side of the first opening region OR1 of the 1-1 unit pixel region UP11 and the scanning line SL can be about 60 degrees. The planar angle θ2 between the long side of the second opening region OG1 of the 1-1 unit pixel region UP11 and the scanning line SL can be about 60 degrees. The planar angle θ3 between one side of the third opening region OB and the scanning line SL can be about 60 degrees.
[0227] The planar angle θ5 between the long side of the first opening region OR2 of the 1-2 unit pixel region UP12 and the scanning line SL can be about 30 degrees. The planar angle θ4 between the long side of the second opening region OG2 of the 1-2 unit pixel region UP12 and the scanning line SL can be about 30 degrees.
[0228] Referring to Figure 5 , Figure 6 and Figures 14 to 17 , the first opening region OR, the second opening region OG, and the third opening region OB of the display device 10 can have the aperture ratios as shown in Table 1 below.
[0229] [Table 1]
[0230] PDL gap is about 23μm PDL gap is about 20μm Structure 1 30.00% 33.20% Structure 2 44.95% 50.50% Structure 3 44.99% 50.50% Structure 4 44.95% 50.50%
[0231] Here, Structure 1 represents a display device in which the opening area can be provided only within the corresponding unit pixel area. Different from the display device according to the present disclosure, the opening area of Structure 1 can be configured such that a part of the opening area can overlap with an adjacent unit pixel area without exceeding the corresponding unit pixel area. In Structure 1, the first opening area OR, the second opening area OG, and the third opening area OB and the scan line SL can cross or intersect with each other at an angle of about 30 degrees.
[0232] Structure 2 represents a display device in which the first opening area OR, the second opening area OG, and the third opening area OB and the scan line SL can cross or intersect with each other at an angle of about 30 degrees. For example, Structure 2 can represent Figure 14 or Figure 15 the display device 10 shown.
[0233] Structure 3 represents a display device in which the first opening area OR, the second opening area OG, and the third opening area OB and the scan line SL can cross or intersect with each other at an angle of about 45 degrees. For example, Structure 3 can represent Figure 5 or Figure 6 the display device 10 shown.
[0234] Structure 4 represents a display device in which the first opening area OR, the second opening area OG, and the third opening area OB and the scan line SL can cross or intersect with each other at an angle of about 60 degrees. For example, Structure 4 can represent Figure 16 or Figure 17 the display device 10 shown.
[0235] Therefore, when the gap of the pixel defining layer PDL is about 23 μm or about 20 μm, Structures 2, 3, and 4 according to the present disclosure can have an aperture ratio higher than that of Structure 1. Therefore, the display device 10 can be configured such that a part of at least one of the first opening area OR, the second opening area OG, and the third opening area OB can exceed the corresponding unit pixel area and overlap with an adjacent unit pixel area. By maximizing the aperture ratio of the unit pixel area, the image quality of the display device 10 can be improved.
[0236] Referring to Figure 5 and Figure 6 , the unit pixel area of the display device 10 can have reflected light as shown in Table 2 below.
[0237] [Table 2]
[0238] Reflected light (nit) Structure 5 660 Structure 6 154 Structure 7 78
[0239] Here, Structure 5 represents a display device in which one side of the opening area can be arranged horizontally or vertically with respect to the scan line SL. Different from the display device according to the present disclosure, the opening area of Structure 5 can be configured such that in a plan view, one side of the opening area does not cross or intersect the scan line SL at a certain angle (non-vertical or non-horizontal).
[0240] Structure 6 represents a display device in which the first opening area OR, the second opening area OG, and the third opening area OB can cross or intersect the scan line SL at an angle of about 45 degrees with each other. For example, Structure 6 can represent Figure 5 or Figure 6 the display device 10 shown.
[0241] Structure 7 represents a display device in which the first opening area OR, the second opening area OG, and the third opening area OB can cross or intersect the scan line SL at an angle of about 45 degrees with each other, and the pixel defining layer PDL can include a light absorbing material.
[0242] Therefore, in Structure 6 of the present disclosure, since the first opening area OR, the second opening area OG, and the third opening area OB can cross or intersect the scan line SL at a non-right angle without being parallel to the scan line SL, the external light reflected at the boundary of the opening area can be minimized. Since Structure 7 of the present disclosure can include a light absorbing material in Structure 6, the amount of external light reflection can be further reduced.
[0243] Figure 18 is a diagram showing an example in which a display device according to an embodiment is applied to a vehicle. Figure 19 is a diagram showing an example in which a display device according to an embodiment is applied to a vehicle.
[0244] Referring to Figure 18 and Figure 19 , the display device can be used as the display device 10a for the instrument panel applied to the vehicle, the display device 10b for the center instrument panel applied to the vehicle, and the display device 10c for the entertainment of the rear seat of the vehicle provided on the rear surface of the front seat.
[0245] According to the present disclosure, the plurality of display devices 10a, 10b, and 10c can maximize the aperture ratio of each sub-pixel while minimizing the external light L1, L2, and L3 reflected at the boundary of the opening area, thereby improving visibility and reliability.
[0246] Although the present disclosure has been shown and described with reference to the embodiments of the present disclosure, those of ordinary skill in the art will understand that various changes can be made in form and detail without departing from the spirit and scope of the present disclosure as defined by the following claims. The embodiments should be considered only in a descriptive sense and not for the purpose of limitation.
Claims
1. A display device, comprising: Scan lines, arranged in a first direction; Data lines, arranged in a second direction perpendicular to the first direction, and A plurality of unit pixel regions, adjacent to the scan lines and the data lines, each of the plurality of unit pixel regions including a plurality of sub-pixels, Wherein, a part of the opening region of at least one sub-pixel among the plurality of sub-pixels overlaps with a unit pixel region adjacent to the unit pixel region corresponding to the at least one sub-pixel among the plurality of sub-pixels, and One side of the opening region of the at least one sub-pixel among the plurality of sub-pixels extends in a third direction inclined with respect to each of the first direction and the second direction, Wherein, each of the plurality of unit pixel regions includes a first sub-pixel, a second sub-pixel, and a third sub-pixel, A first opening region of the first sub-pixel and a second opening region of the second sub-pixel are arranged on the other side of a third opening region of the third sub-pixel in a fourth direction, and the fourth direction is perpendicular to the third direction, and Wherein, the plurality of unit pixel regions include: A first unit pixel region; and A second unit pixel region, adjacent to one side of the first unit pixel region in the first direction, A first opening region of the first unit pixel region is arranged on one side of a second opening region of the first unit pixel region in the third direction, and A first opening region of the second unit pixel region is arranged on the other side of a second opening region of the second unit pixel region in the fourth direction.
2. The display device according to claim 1, wherein, The plurality of unit pixel regions further include: A third unit pixel region, adjacent to one side of the first unit pixel region in the second direction; and A fourth unit pixel region, adjacent to one side of the second unit pixel region in the second direction, A part of the second opening region of the first unit pixel region overlaps with the third unit pixel region, and A part of the first opening region of the second unit pixel region overlaps with the fourth unit pixel region.
3. The display device according to claim 2, wherein, A part of a third opening region of the third unit pixel region overlaps with the first unit pixel region, and Another part of the third opening region of the third unit pixel region overlaps with the fourth unit pixel region.
4. The display device according to claim 1, further comprising: A first substrate, on which the plurality of unit pixel regions are arranged; And A second substrate, facing the first substrate, Wherein, the first unit pixel region further includes: A first spacer, arranged between the first substrate and the second substrate, and wherein, the second unit pixel region further includes: A second spacer, arranged between the first substrate and the second substrate.
5. The display device according to claim 4, wherein, The first spacer is arranged between the first opening region of the first unit pixel region and the third opening region of the first unit pixel region.
6. The display device according to claim 4, wherein, The second spacer is disposed on one side of the second opening region and the third opening region of the second unit pixel region in the third direction.
7. The display device according to claim 4, wherein, The plurality of unit pixel regions further include: A third unit pixel region adjacent to one side of the first unit pixel region in the second direction; and A fourth unit pixel region adjacent to one side of the second unit pixel region in the second direction, A part of the second opening region of the second sub-pixel of the first unit pixel region overlaps with the third unit pixel region, and A part of the first opening region of the first sub-pixel of the second unit pixel region overlaps with the fourth unit pixel region.
8. The display device according to claim 7, wherein, A part of the third opening region of the third sub-pixel of the third unit pixel region overlaps with the first unit pixel region, and Another part of the third opening region of the third sub-pixel of the third unit pixel region overlaps with the fourth unit pixel region.
9. The display device according to claim 1, further comprising: A first substrate on which the plurality of unit pixel regions are disposed; And A second substrate facing the first substrate, Wherein, the first unit pixel region further includes: A first spacer and a second spacer disposed between the first substrate and the second substrate, and Wherein, the second unit pixel region further includes: A third spacer and a fourth spacer disposed between the first substrate and the second substrate.
10. The display device according to claim 9, wherein, The first spacer is disposed on the other side of the first opening region of the first unit pixel region in the second direction and on the other side of the third opening region of the first unit pixel region in the first direction, and The second spacer is disposed on one side of the second opening region of the first unit pixel region in the first direction and on one side of the third opening region of the first unit pixel region in the second direction.
11. The display device according to claim 9, wherein, The third spacer is disposed on the other side of the second opening region of the second unit pixel region in the second direction and on the other side of the third opening region of the second unit pixel region in the first direction, and The fourth spacer is disposed on one side of the second opening region of the second unit pixel region in the first direction and on one side of the third opening region of the second unit pixel region in the second direction.
12. The display device according to claim 9, wherein, The first opening region of the first unit pixel region includes: A central portion; A first protruding portion protruding from the central portion to one side in the third direction; A second protruding portion protruding from the central portion toward the third opening region of the first unit pixel region; and A third protruding portion protruding from the central portion in a direction opposite to the second protruding portion.
13. The display device according to claim 9, wherein, The second opening region of the first unit pixel region includes: A central portion; A first protruding portion protruding from the central portion to the other side in the third direction; A second protrusion protruding from the central portion toward a third opening area of the first unit pixel area; and A third protrusion protruding from the central portion in a direction opposite to that of the second protrusion.
14. The display device according to claim 9, wherein, The third opening area of the first unit pixel area includes: A central portion; A first protrusion protruding from the central portion toward a first opening area of the first unit pixel area and a second opening area of the first unit pixel area; A second protrusion protruding from the central portion toward the other side in the third direction; A third protrusion protruding from the central portion in a direction opposite to that of the first protrusion; and A fourth protrusion protruding from the central portion in a direction opposite to that of the second protrusion.
15. The display device according to claim 1, wherein The third opening area includes: A central portion; and A protrusion protruding from a lower corner of the central portion toward one side in the second direction.
16. The display device according to claim 15, wherein An end portion of the protrusion of the third opening area of the first unit pixel area faces the second opening area of the first unit pixel area, and The other end portion of the protrusion of the third opening area perpendicular to the end portion faces the first opening area of the second unit pixel area.
17. The display device according to claim 16, wherein The first unit pixel area includes a first spacer surrounded by the first opening area, the end portion of the protrusion of the third opening area, and a left corner of the central portion of the third opening area.
18. The display device according to claim 16, wherein The second unit pixel area includes a second spacer surrounded by a right corner of the central portion of the third opening area of the first unit pixel area, the other end portion of the protrusion of the third opening area of the first unit pixel area, the second opening area of the second unit pixel area, and a left corner of the central portion of the third opening area of the second unit pixel area.
19. The display device according to claim 1, wherein The third opening area includes: An end portion extending from the center of gravity toward one side in the third direction; and The other end portion extending from the center of gravity toward one side in the fourth direction.
20. The display device according to claim 19, wherein The first opening area of the first unit pixel area and the second opening area of the first unit pixel area are provided on the other side of the end portion of the third opening area of the first unit pixel area in the fourth direction, and The first opening area of the second unit pixel area and the second opening area of the second unit pixel area are provided on the other side of the other end portion of the third opening area of the first unit pixel area in the third direction.
21. The display device according to claim 19, wherein The plurality of unit pixel areas further includes a third unit pixel area having a first sub-pixel, a second sub-pixel, and a third sub-pixel and adjacent to one side of the first unit pixel area in the second direction, and The third unit pixel region includes a first spacer surrounded by the second opening region of the first unit pixel region, the third opening region of the first unit pixel region, the first opening region of the second unit pixel region, and the third opening region of the third unit pixel region.
Citation Information
Patent Citations
A circular knitting machine that simultaneously knits a cutting file and a loop file
KR1020200011083A
Organic light-emitting diode (OLED) display
US20150200237A1
Pixel array, electro optical device, electric apparatus and method of driving pixel array
US20160203748A1