Display device
By directly setting the input sensing layer on the flexible display device and adopting a multi-layer structure design, the problem of insufficient touch reliability is solved, the sensitivity and accuracy of the sensing layer are improved, the breakage of the sensing line is reduced, and the reliability of the display device is achieved when the shape changes.
Patent Information
- Application Number
- CN202080052469.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2019-08-07
- Filing Date
- 2020-07-02
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2040-07-02
AI Technical Summary
Existing flexible display devices have shortcomings in touch reliability, especially when the shape changes, the sensitivity and accuracy of the input sensing layer are poor, and the sensing lines are prone to breakage.
The input sensing layer is directly set on the display panel, and the sensing line pattern is designed with a multi-layer structure, including a covering part and a connecting covering part. This ensures that the sensing line pattern is adjusted in position to reduce stress, and a multi-layer conductive stacked structure is used to reduce the possibility of disconnection.
It improves the touch sensitivity and accuracy of the input sensing layer, reduces the possibility of the sensing line pattern breaking, and improves the reliability of the display device when the shape changes.
Smart Images

Figure CN114144884B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a display device, and more specifically, to a stretchable display device capable of changing shape. Background Technology
[0002] Display devices display various images on a screen to provide information to users. Typically, display devices display information within a designated screen area. Recently, flexible display devices, including those with flexible display panels, have been developed. Unlike rigid display devices, flexible display devices can be folded, rolled, bent, or stretched. Flexible display devices, capable of changing shape in various ways, can be portable regardless of the size of existing screens, thus improving user convenience. Furthermore, because the shape of the display device is easily changeable, it can be easily mounted on mounting surfaces of various shapes, regardless of the surface's shape. Summary of the Invention
[0003] Technical issues
[0004] The object of this invention is to provide a display device with improved touch reliability.
[0005] Technical solutions
[0006] A display device according to an embodiment of the present invention includes: a display panel configured to display an image; and an input sensing layer directly disposed on the display panel and including a sensing pattern and a connection pattern, wherein the display panel includes: a base layer including a first island portion, a second island portion spaced apart from the first island portion, and a connecting portion configured to connect the first island portion to the second island portion and having a shape extending in a first direction; a first pixel disposed on the first island portion; a second pixel disposed on the second island portion; a signal line disposed on the connecting portion and electrically connected to the first pixel and the second pixel; a first cover portion configured to cover the first pixel; a second cover portion configured to cover the second pixel; and a connection cover portion disposed on the signal line, wherein each of the sensing patterns includes a first sensing line pattern disposed on the first cover portion and the second cover portion and a second sensing line pattern disposed on the connection cover portion, and the connection portion includes a first region and a second region, each of the first region and the second region having a shape extending in a first direction, and the first region and the second region being adjacent to each other in a second direction intersecting the first direction, wherein the first region is spaced apart from the first island portion and the second island portion, and the second region is between the first region and the first island portion and the second island portion, and the second sensing line pattern is disposed on the first region.
[0007] Each of the first covering portion and the second covering portion may include a first inorganic layer, an organic layer disposed on the first inorganic layer, and a second inorganic layer configured to cover the organic layer, wherein the first sensing line pattern may be disposed on the second inorganic layer.
[0008] Each of the first and second covering portions may further include a light-blocking layer disposed between the second inorganic layer and the first sensing line pattern.
[0009] The connection cover may include a first connection inorganic layer extending from a first inorganic layer and a second connection inorganic layer extending from a second inorganic layer and disposed on the first connection inorganic layer.
[0010] The connecting cover may also include a connecting light blocking layer disposed on the second connecting inorganic layer and extending from the light blocking layer.
[0011] Each of the first covering portion and the second covering portion may further include a first color filter layer disposed on the second inorganic layer, a second color filter layer disposed on the second inorganic layer and adjacent to the first color filter layer, and a third color filter layer disposed on the second inorganic layer and adjacent to the second color filter layer, wherein the first sensing line pattern may be disposed on the first color filter layer, the second color filter layer and the third color filter layer.
[0012] The connection cover may include: a first compensation layer, comprising the same material as the first color filter layer; a second compensation layer, comprising the same material as the second color filter layer; and a third compensation layer, comprising the same material as the third color filter layer, wherein the second sensing line pattern may be disposed on the third compensation layer.
[0013] The connecting cover may also include a connecting light blocking layer disposed between the third compensation layer and the second sensing line pattern.
[0014] Each of the first cover portion and the second cover portion may further include a light blocking layer disposed between the first sensing line pattern and the first color filter layer to the third color filter layer, wherein the light blocking layer may define an opening.
[0015] Each of the first and second covering portions may further include a light-blocking layer configured to cover the first sensing line pattern.
[0016] Each of the first covering portion and the second covering portion may include a first inorganic layer, a second inorganic layer directly disposed on the first inorganic layer, a first color filter layer disposed on the second inorganic layer, a second color filter layer disposed on the second inorganic layer and adjacent to the first color filter layer, and a third color filter layer disposed on the second inorganic layer and adjacent to the second color filter layer, wherein the first sensing line pattern may be disposed on the first color filter layer, the second color filter layer and the third color filter layer.
[0017] Each of the first cover portion and the second cover portion may further include a light-blocking layer disposed between the first sensing line pattern and the first color filter layer to the third color filter layer.
[0018] Each of the first and second covering portions may further include a light-blocking layer configured to cover the first sensing line pattern.
[0019] Each of the first covering portion and the second covering portion may include a first inorganic layer, a first organic layer disposed on the first inorganic layer, a second inorganic layer configured to cover the first organic layer, a second organic layer disposed on the second inorganic layer, and a third inorganic layer configured to cover the second organic layer, wherein the first sensing line pattern may be disposed on the third inorganic layer.
[0020] The second sensing line pattern may include a first sub-sensing layer connected to the first sensing line pattern and a second sub-sensing layer disposed on a different layer from the first sub-sensing layer, wherein the first sub-sensing layer and the second sub-sensing layer may be electrically connected to each other.
[0021] The sensing pattern may include a first sensing pattern and a second sensing pattern, the connection pattern may include a first connection pattern connected to the first sensing pattern that is adjacent to each other and a second connection pattern connected to the second sensing pattern that is adjacent to each other, and the input sensing layer may also include a sensing insulating layer disposed between the first connection pattern and the second connection pattern.
[0022] The first sub-sensing layer may include the same material as the first connection pattern, the second sub-sensing layer may include the same material as the second connection pattern, and the sensing insulating layer may extend to the area between the first sub-sensing layer and the second sub-sensing layer.
[0023] The input sensing layer may also include a light-absorbing layer disposed on at least a portion of the sensing pattern and the connection pattern.
[0024] A display device according to an embodiment of the present invention includes: a display panel configured to display an image; and an input sensing layer directly disposed on the display panel and including a sensing pattern and a connection pattern, wherein the display panel includes: a base layer including a first island portion, a second island portion, and a connecting portion configured to connect the first island portion to the second island portion; a first pixel disposed on the first island portion; a second pixel disposed on the second island portion; a signal line disposed on the connecting portion and electrically connected to the first pixel and the second pixel; a first cover portion disposed on the first pixel and configured to cover the first pixel; a second cover portion disposed on the second pixel and configured to cover the second pixel; and a connection cover portion disposed on the signal line, wherein each of the sensing patterns includes a first sensing line pattern disposed on the first cover portion and the second cover portion and a second sensing line pattern disposed on the connection cover portion and connected to the first sensing line pattern, each of the first cover portion and the second cover portion may include a color filter layer, the connection cover portion may include a compensation layer, and the compensation layer may include the same material as the color filter layer.
[0025] The connecting portion may have a shape extending from the first island portion to the second island portion in a first direction. The connecting portion may include a first region and a second region, each of the first region and the second region having a shape extending in the first direction. The first region may be spaced apart from the first island portion and the second island portion, and the second region is located between the first region and the first island portion and the second island portion in a second direction intersecting the first direction. The second sensing line pattern may overlap with the first region and be spaced apart from the second region in a plane.
[0026] Beneficial effects
[0027] According to an embodiment of the present invention, in a stretchable display device, the input sensing layer can be directly disposed on the display panel. The distance between the input sensing layer and the cathode can be greater than or equal to a predetermined distance through a cover portion. Therefore, the touch sensitivity and accuracy of the input sensing layer can be improved.
[0028] Furthermore, according to an embodiment of the present invention, the sensing line pattern of the input sensing layer provided on the connecting portion that connects the island portions to each other can be adjusted in position to reduce the stress applied to the sensing line pattern. Moreover, since the sensing line pattern is provided with a stacked structure including multiple conductive layers, the possibility of the sensing line pattern breaking can be reduced. Attached Figure Description
[0029] Figure 1a This is a perspective view of a display device according to an embodiment of the present invention.
[0030] Figure 1b This is a perspective view of a display device according to an embodiment of the present invention.
[0031] Figure 2 This is a view showing the environment in which the display device according to an embodiment of the present invention is used.
[0032] Figure 3 This is a schematic cross-sectional view of a display device according to an embodiment of the present invention.
[0033] Figure 4 This is a plan view of a display panel according to an embodiment of the present invention.
[0034] Figure 5 This is a plan view of the input sensing layer according to an embodiment of the present invention.
[0035] Figure 6a It is along Figure 5 A sectional view taken by line I-I'.
[0036] Figure 6b It is along Figure 5 A sectional view taken by line I-I'.
[0037] Figure 6c It is along Figure 5 A sectional view taken by line I-I'.
[0038] Figure 7 This is an enlarged plan view showing a portion of a display panel according to an embodiment of the present invention.
[0039] Figure 8 This is a plan view showing a portion of the configuration of a display panel according to an embodiment of the present invention.
[0040] Figure 9 It is along Figure 7 The sectional view taken from line II-II'.
[0041] Figure 10 It is along Figure 7 The sectional view taken from line III-III'.
[0042] Figure 11 It is along Figure 7 The sectional view taken from line III-III'.
[0043] Figure 12 It is along Figure 7 The sectional view taken from line II-II'.
[0044] Figure 13 It is along Figure 7 The sectional view taken from line II-II'.
[0045] Figure 14 It is along Figure 7 The sectional view taken from line II-II'.
[0046] Figure 15 It is along Figure 7 The sectional view taken from line III-III'.
[0047] Figure 16 It is along Figure 7 The sectional view taken from line II-II'.
[0048] Figure 17 It is along Figure 7 The sectional view taken from line II-II'.
[0049] Figure 18 It is along Figure 7 The sectional view taken from line II-II'.
[0050] Figure 19 It is shown that... Figure 5 A plan view of the area corresponding to region XX'. Detailed Implementation
[0051] In this specification, it will also be understood that when a component (or region, layer, section) is referred to as being "on", "connected to", or "linked to" another component, it may be set directly on, directly connected to, or linked to that component, or there may be an intermediary third component.
[0052] Throughout the specification, the same reference numerals denote the same components. Furthermore, in the accompanying drawings, the thickness, proportions, and dimensions of the components are exaggerated for clarity.
[0053] The term "and / or" includes any and all combinations of one or more of the listed items.
[0054] 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. These terms are used only to distinguish one component from others. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element, without departing from the scope of the appended claims. Unless otherwise stated, singular terms may include plural forms.
[0055] In addition, terms such as "below," "under," "above," and "upper" are used to explain the relationships between the components shown in the accompanying drawings. These terms can be relative concepts and are described based on the directions expressed in the drawings.
[0056] Unless otherwise specified, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Furthermore, terms (such as those defined in common dictionaries) shall be interpreted as having the meaning consistent with their meaning in the context of the relevant art, and shall not be interpreted in an ideal or overly formal sense unless expressly defined herein.
[0057] The meaning of "include" or "comprise" is to specify an attribute, fixed number, step, operation, element, component or combination thereof, but does not exclude other attributes, fixed numbers, steps, operations, elements, components or combinations thereof.
[0058] In the following description, embodiments of the invention will be described with reference to the accompanying drawings.
[0059] Figure 1a This is a perspective view of a display device according to an embodiment of the present invention. Figure 1b This is a perspective view of a display device according to an embodiment of the present invention.
[0060] refer to Figure 1a and Figure 1b The display device DD can be an extendable display device. In this case, the shape of the display device DD can be changed in various ways. For example, the display device DD can extend in various directions.
[0061] like Figure 1a As shown, the display device DD can extend in various directions on a plane defined by the first direction DR1 and the second direction DR2. The third direction DR3 is a direction perpendicular to each of the first direction DR1 and the second direction DR2. Changes in the shape of the display device DD can be performed by an externally applied force.
[0062] like Figure 1b As shown, the display device DD can extend in a direction protruding from the display surface. For example, the display device DD can extend in a direction protruding from a plane defined by a first direction DR1 and a second direction DR2.
[0063] According to embodiments of the present invention, since the shape of the display device DD is easily changeable, the display device DD can be mounted on mounting surfaces with various shapes. For example, the display device DD can be mounted on the outer or inner wall of a building with curves. Furthermore, the display device DD can be mounted on a curved mounting surface inside a vehicle.
[0064] Figure 2 This is a view showing the environment in which the display device according to an embodiment of the present invention is used.
[0065] refer to Figure 2 The display devices DDa, DDb, and DDc can be extendable display devices. The display devices DDa, DDb, and DDc can be installed inside the vehicle. For example, the display devices DDa, DDb, and DDc include a display device DDa for displaying various types of information required to drive the vehicle, a display device DDb for operating various systems such as air conditioning, heaters, audio, and air circulation, and a display device DDc for displaying rear-view images.
[0066] The mounting surfaces on the vehicle where display devices DDa, DDb, and DDc are installed can have curved surfaces. According to embodiments of the invention, the shape of each of the display devices DDa, DDb, and DDc can be changed to correspond to the shape of the curved mounting surface. Therefore, the display devices DDa, DDb, and DDc can be easily mounted on mounting surfaces with various shapes.
[0067] Figure 3 This is a schematic cross-sectional view of a display device according to an embodiment of the present invention.
[0068] refer to Figure 3 The display device DD may include a display panel DP and an input sensing layer ISL.
[0069] Display panel (DP) can display images. DP can be an emitting display panel, but is not particularly limited to it. For example, DP can be an organic light-emitting display panel, a quantum dot light-emitting display panel, a micro-LED display panel, or a nano-LED display panel. Organic light-emitting display panels can include organic light-emitting materials. The emitting layer of a quantum dot light-emitting display panel can include quantum dots and / or quantum rods. The emitting layer of a micro-LED display panel can include tiny LEDs. The emitting layer of a nano-LED display panel can include nano-sized LEDs.
[0070] The input sensing layer (ISL) can acquire coordinate information of external inputs (e.g., touch events). The ISL can sense external inputs using either mutual capacitance or self-capacitance. Alternatively, the ISL can sense external inputs using both mutual capacitance and self-capacitance.
[0071] Figure 4 This is a plan view of a display panel according to an embodiment of the present invention.
[0072] refer to Figure 4 The display panel DP may include a display area DA and a non-display area NDA on a plane. In this embodiment, the non-display area NDA may be defined along the edge of the display area DA.
[0073] The display panel (DP) may include driver circuitry (SD), signal lines (SGL), display pads (D-PD), and pixels (PX). Signal lines (SGL) may include scan lines (SL), transmit control lines (ECL), data lines (DL), and power lines (PL). Figure 4 The diagram shows only one scan line SL, one transmit control line ECL, one data line DL, and one power line PL.
[0074] The driving circuit SD can be located in the non-display area NDA. The driving circuit SD can be electrically connected to the scan line SL and the transmit control line ECL. The driving circuit SD may include, for example, a first driving circuit connected to the scan line SL and a second driving circuit connected to the transmit control line ECL. The first driving circuit can generate a scan signal to output to the scan line SL. The second driving circuit can generate a transmit control signal to output to the transmit control line ECL.
[0075] The data line DL can be electrically connected to the display pad D-PD located in the non-display area NDA. The display panel DP may also include data driving circuitry connected to the display pad D-PD in the form of chip on film (COF) or chip on plastic (COP). However, this is only an example, and in another embodiment of the invention, the data driving circuitry may be integrated in the non-display area NDA.
[0076] A power electrode ES can be disposed in the non-display area NDA. The power electrode ES can have a shape extending in the first direction DR1. A power line PL can be connected to the power electrode ES to provide a power signal to the pixel PX.
[0077] Figure 5 This is a plan view of the input sensing layer according to an embodiment of the present invention.
[0078] refer to Figure 5 The input sensing layer (ISL) can include a sensing region (SA) and a non-sensing region (NSA) on a plane. In this embodiment, the non-sensing region (NSA) can be defined along the edge of the sensing region (SA). The sensing region (SA) can be adjacent to the display region (DA) (see [link to relevant documentation]). Figure 4 Corresponding to, and the non-sensing area NSA can be associated with the non-display area NDA (see...). Figure 4 )correspond.
[0079] The input sensing layer (ISL) may include a sensing pattern (SE), a connection pattern (CNE), a sensing line (SSL), and a sensing pad (S-PD). The sensing pattern (SE) and the connection pattern (CNE) may be located in the sensing area (SA), and the sensing line (SSL) and the sensing pad (S-PD) may be located in the non-sensing area (NSA).
[0080] The sensing pattern SE may include a first sensing pattern SE1 and a second sensing pattern SE2. Figure 5 For clarity, the first sensing pattern SE1 is displayed darker than the second sensing pattern SE2. The connection pattern CNE may include the first connection pattern CE1 and the second connection pattern CE2. The sensing line SSL may include the first sensing line SL1 and the second sensing line SL2.
[0081] A first sensing pattern SE1 can be arranged on a first direction DR1. Each of the first connecting patterns CE1 can be connected to two adjacent first sensing patterns SE1 on the first direction DR1. A second sensing pattern SE2 can be arranged on a second direction DR2. Each of the second connecting patterns CE2 can be connected to two adjacent second sensing patterns SE2 on the second direction DR2. A first connecting pattern CE1 and a second connecting pattern CE2 can be insulated from each other and intersect each other.
[0082] A first sensing pattern SE1 and a first connecting pattern CE1 arranged on a first direction DR1 can constitute a first sensing electrode ISE1. A second sensing pattern SE2 and a second connecting pattern CE2 arranged on a second direction DR2 can constitute a second sensing electrode ISE2. Each of the first sensing electrodes ISE1 and the second sensing electrodes ISE2 can be multiple. Each of the first sensing electrodes ISE1 can extend on the first direction DR1 and can be arranged on the second direction DR2. Each of the second sensing electrodes ISE2 can extend on the second direction DR2 and can be arranged on the first direction DR1.
[0083] The first sensing line SL1 can be connected to the first sensing electrode ISE1 in a one-to-one correspondence, and the second sensing line SL2 can be connected to the second sensing electrode ISE2 in a one-to-one correspondence. Furthermore, the first sensing line SL1 and the second sensing line SL2 can be electrically connected to the sensing pad S-PD.
[0084] Figure 6a It is along Figure 5 A sectional view taken by line I-I'.
[0085] refer to Figure 6a The input sensing layer (ISL) can be directly disposed on the display panel (DP). That is, the fact that the input sensing layer (ISL) is directly disposed on the display panel (DP) means that no separate adhesive layer / adhesive component is required to bond the input sensing layer (ISL) to the display panel (DP). In other words, this fact means that the input sensing layer (ISL) is formed on the base surface provided by the display panel (DP) through a continuous process.
[0086] The input sensing layer ISL may further include a sensing insulating layer ILS disposed between the first connection pattern CE1 and the second connection pattern CE2. For example, the first connection pattern CE1 may be disposed on the display panel DP, and the sensing insulating layer ILS may cover the first connection pattern CE1. The second connection pattern CE2 may be disposed on the first connection pattern CE1 and may be spaced apart from the first connection pattern CE1 by the sensing insulating layer ILS. (See also: First sensing pattern SE1 and second sensing pattern SE2) Figure 5 It can be set on the sensing insulating layer ILS.
[0087] In embodiments of the present invention, the sensing insulating layer ILS can be configured as an island pattern. For example, the sensing insulating layer ILS can be provided only in a region where the first connection pattern CE1 and the second connection pattern CE2 intersect each other. In this case, the first connection pattern CE1, the first sensing pattern SE1, and the second sensing pattern SE2 (see...) Figure 5 It can be directly set on the display panel DP. In addition, the first sensing pattern SE1 can be electrically connected to the first connection pattern CE1 through the contact hole passing through the sensing insulating layer ILS.
[0088] First connection pattern CE1, second connection pattern CE2, first sensing pattern SE1 and second sensing pattern SE2 (see...) Figure 5 Each of the following can include a metallic material. For example, the first connection pattern CE1, the second connection pattern CE2, the first sensing pattern SE1, and the second sensing pattern SE2 (see...) Figure 5 It can include silver or copper.
[0089] Figure 6b It is along Figure 5 A sectional view taken by line I-I'.
[0090] refer to Figure 6b The light absorption layer BCL can also be disposed on the second connection pattern CE2, the first sensing pattern SE1, and the second sensing pattern SE2 (see...). Figure 5 The light-absorbing layer (BCL) may include a black nickel plating or a black chromium plating, but the materials constituting the light-absorbing layer (BCL) are not limited to these.
[0091] The reflectivity of light incident from the outside can be reduced by using a light-absorbing layer (BCL). Therefore, the display device DD (see [reference]) can be further improved. Figure 1a The display quality is improved. Although the light-absorbing layer BCL is not shown in the embodiments described below, a light-absorbing layer BCL may be applied elsewhere.
[0092] Figure 6c It is along Figure 5 A sectional view taken by line I-I'.
[0093] refer to Figure 6c First sensing pattern SE1 and second sensing pattern SE2 (see Figure 5 The second connection pattern CE2, the first sensing pattern SE1, and the second sensing pattern SE2 (see...) can be positioned beneath the sensing insulating layer ILS. In this case, the second connection pattern CE2, the first sensing pattern SE1, and the second sensing pattern SE2 (see...) Figure 5 The first connection pattern CE1 can be directly disposed on the display panel DP, and the first connection pattern CE1 can be disposed on the sensing insulating layer ILS. In addition, the first sensing pattern SE1 can be electrically connected to the first connection pattern CE1 through the contact hole passing through the sensing insulating layer ILS.
[0094] Figure 7 This is an enlarged plan view showing a portion of a display panel according to an embodiment of the present invention. Figure 8 This is a plan view showing a portion of the configuration of a display panel according to an embodiment of the present invention.
[0095] refer to Figure 7 and Figure 8 Display panel DP (see) Figure 4 It can include the base layer (BL).
[0096] The base layer (BL) may include islands IP1, IP2, IP3, and IP4, and connecting portions CP1, CP2, CP3, and CP4 extending from the islands IP1, IP2, IP3, and IP4, respectively. The islands IP1, IP2, IP3, and IP4 may be referred to as island portions IP1, IP2, IP3, and IP4. The connecting portions CP1, CP2, CP3, and CP4 may be referred to as connecting portions CP1, CP2, CP3, and CP4.
[0097] Figure 7 Four islands IP1, IP2, IP3, and IP4 are illustrated exemplarily. The first island IP1 may be spaced apart from the second island IP2 in the first direction DR1, the third island IP3 may be spaced apart from the first island IP1 in the second direction DR2, and the fourth island IP4 may be spaced apart from the second island IP2 in the second direction DR2.
[0098] Connecting sections CP1, CP2, CP3, and CP4 can extend from each of the first island IP1, the second island IP2, the third island IP3, and the fourth island IP4. The following description will be based on the first island IP1.
[0099] Connecting portions CP1, CP2, CP3, and CP4 may include a first connecting portion CP1, a second connecting portion CP2, a third connecting portion CP3, and a fourth connecting portion CP4. The first connecting portion CP1 may extend from the first island portion IP1 in the first direction DR1. The first connecting portion CP1 can connect the first island portion IP1 to the second island portion IP2. The second connecting portion CP2 may extend from the first island portion IP1 in the second direction DR2. The second connecting portion CP2 can connect to an island portion (not shown) disposed on the first island portion IP1. The third connecting portion CP3 may extend from the first island portion IP1 in the first direction DR1. The third connecting portion CP3 can connect to an island portion (not shown) disposed to the left of the first island portion IP1. The fourth connecting portion CP4 may extend from the first island portion IP1 in the second direction DR2. The fourth connecting portion CP4 can connect to the third island portion IP3.
[0100] The first pixels PAR-1, PAB-1, and PAG-1 can be set on the first island IP1, the second pixels PAR-2, PAB-2, and PAG-2 can be set on the second island IP2, the third pixels PAR-3, PAB-3, and PAG-3 can be set on the third island IP3, and the fourth pixels PAR-4, PAB-4, and PAG-4 can be set on the fourth island IP4.
[0101] The first covering portion can be disposed on the first pixels PAR-1, PAB-1, and PAG-1; the second covering portion can be disposed on the second pixels PAR-2, PAB-2, and PAG-2; the third covering portion can be disposed on the third pixels PAR-3, PAB-3, and PAG-3; and the fourth covering portion can be disposed on the fourth pixels PAR-4, PAB-4, and PAG-4. The descriptions of the first to fourth covering portions will be detailed below.
[0102] Signal lines DL, PL, SL, and ECL can be disposed on the first connecting portion CP1, the second connecting portion CP2, the third connecting portion CP3, and the fourth connecting portion CP4. For example, the scan line SL, the transmit control line ECL, and the power line PL can be disposed on the first connecting portion CP1 and the third connecting portion CP3, wherein each of the first connecting portion CP1 and the third connecting portion CP3 has a shape extending in the first direction DR1, and the data line DL and the power line PL can be disposed on the second connecting portion CP2 and the fourth connecting portion CP4, wherein each of the second connecting portion CP2 and the fourth connecting portion CP4 has a shape extending in the second direction DR2. However, this is only an example, and the arrangement of the signal lines DL, PL, SL, and ECL can be changed according to the pixel design.
[0103] A first connecting cover may be disposed on a first connecting part CP1, a second connecting cover may be disposed on a second connecting part CP2, a third connecting cover may be disposed on a third connecting part CP3, and a fourth connecting cover may be disposed on a fourth connecting part CP4. The descriptions of the first to fourth connecting covers will be detailed below.
[0104] Figure 7 The area BB' shown can be with Figure 5 The regions AA' shown overlap. Each of the sensing patterns SE1 and SE2 can overlap with dozens of islands. For example, a first sensing pattern SE1 can overlap with dozens of islands arranged in a diamond shape on a plane. Therefore, Figure 7 The first island IP1, the second island IP2, the third island IP3 and the fourth island IP4 shown can overlap with a first sensing pattern SE1.
[0105] The first sensing pattern SE1 may include a first sensing line pattern SEL1 and a second sensing line pattern SEL2. The first sensing line pattern SEL1 may be disposed on the first to fourth covering portions, and the second sensing line pattern SEL2 may be disposed on the first to fourth connecting covering portions. That is, on a plane, the first sensing line pattern SEL1 may overlap with the first island IP1, the second island IP2, the third island IP3, and the fourth island IP4, and the second sensing line pattern SEL2 may overlap with the first connecting portion CP1, the second connecting portion CP2, the third connecting portion CP3, and the fourth connecting portion CP4.
[0106] On a plane, the second sensing line pattern SEL2 can be spaced apart from the first island IP1, the second island IP2, the third island IP3, and the fourth island IP4. The description will be based on the first connecting portion CP1. The first connecting portion CP1 can have a shape extending in the first direction DR1. For example, the first connecting portion CP1 can be provided from the first island IP1 in the first direction DR1. Furthermore, the first connecting portion CP1 can connect the first island IP1 to the second island IP2 in the first direction DR1.
[0107] The first connecting portion CP1 may include a first region ARa and a second region ARb, each of which has a shape extending in a first direction DR1. For example, the length of the first connecting portion CP1 in the first direction DR1 may be greater than the length of the first connecting portion CP1 in the second direction DR2.
[0108] The first region ARa and the second region ARb can be adjacent to each other in the second direction DR2. In the plane, the second region ARb can be defined between the first region ARa and the first island IP1, and between the first region ARa and the second island IP2. For example, the first island IP1 and the first region ARa can be spaced apart from each other in the second direction DR2, and the second region ARb can be defined between the first island IP1 and the first region ARa. Furthermore, the second island IP2 and the first region ARa can be spaced apart from each other in the second direction DR2, and the second region ARb can be defined between the second island IP2 and the first region ARa. In the plane, the second sensing line pattern SEL2 can overlap with the first region ARa, but may not overlap with the second region ARb.
[0109] exist Figure 8 Only the base layer BL and the first sensing pattern SE1 are shown. When a force is applied to the display panel DP to change its shape, each of the island portions IP1, IP2, IP3, and IP4 can rotate in a predetermined direction, and therefore, the distance LT between adjacent connecting portions CP1, CP2, CP3, and CP4 can increase. Here, tensile stress can be applied to the second region ARb of each of the first connecting portion CP1, the second connecting portion CP2, the third connecting portion CP3, and the fourth connecting portion CP4. According to an embodiment of the invention, the second sensing line pattern SEL2 is provided on the first region ARa, which is subjected to relatively small tensile stress. Therefore, even if the display device DD (see...) Figure 1a The shape of the second sensing line pattern SEL2 can be changed, which can also reduce the possibility of the second sensing line pattern SEL2 being disconnected or broken.
[0110] Although the above description is based on the case where the first connecting part CP1 is divided into a first region ARa and a second region ARb for ease of description, the first region ARa and the second region ARb are not physically separate from each other. That is, the first region ARa and the second region ARb are not physically separate components, and the first region ARa and the second region ARb can be set as a single unit.
[0111] Figure 9 It is along Figure 7 The sectional view taken from line II-II'. Figure 9 A cross-sectional view of the third island IP3 is shown. The first island IP1, the second island IP2, and the fourth island IP4 can also be understood with reference to the following description.
[0112] refer to Figure 7 and Figure 9The base layer BL may include a synthetic resin layer. The synthetic resin layer may include a thermosetting resin. Specifically, the synthetic resin layer may be a polyimide resin layer, and its material is not particularly limited. The synthetic resin layer may include at least one of acrylic resins, methacrylate resins, polyisoprene resins, vinyl resins, epoxy resins, urethane resins, cellulose resins, siloxane resins, polyamide resins, and dinaphthalene-based phenyl resins. The base layer BL may be a single layer or multiple layers.
[0113] At least one inorganic layer is disposed on the top surface of the base layer BL. The inorganic layer may include at least one of silicon nitride, titanium oxide, silicon oxide, silicon oxynitride, zirconium oxide, and hafnium oxide. The inorganic layer may be configured as multiple layers. The multiple inorganic layers may constitute a barrier layer BRL and / or a buffer layer BFL, as described below. The barrier layer BRL and the buffer layer BFL may be optionally disposed.
[0114] A barrier layer (BRL) prevents the introduction of foreign substances from the outside. The BRL may include a silicon oxide layer and a silicon nitride layer. Multiple layers may be provided, and the silicon oxide and silicon nitride layers may be stacked alternately.
[0115] A buffer layer (BFL) can be disposed on the barrier layer (BRL). The buffer layer (BFL) improves the adhesion between the base layer (BL) and the semiconductor pattern and / or conductive pattern. The buffer layer (BFL) may include a silicon oxide layer and a silicon nitride layer. The silicon oxide layer and the silicon nitride layer may be stacked alternately.
[0116] Third pixels PAR-3, PAB-3, and PAG-3 can be disposed on the buffer layer BFL. Third pixel PAR-3 may include a first pixel circuit and a first light-emitting element EML1 electrically connected to the first pixel circuit. Third pixel PAB-3 may include a second pixel circuit and a second light-emitting element EML2 electrically connected to the second pixel circuit. Third pixel PAG-3 may include a third pixel circuit and a third light-emitting element EML3 electrically connected to the third pixel circuit. Each of the first, second, and third pixel circuits may include at least one transistor and at least one capacitor. In the following, Figure 9 A cross-sectional view showing a partial configuration of each of the first pixel circuit, the second pixel circuit, and the third pixel circuit is shown.
[0117] The first transistor TR-1 of the first pixel circuit may include an active portion AT, a source SS, a drain DR, and a gate GT. Descriptions of the second transistor TR-2 of the second pixel circuit and the third transistor TR-3 of the third pixel circuit will be omitted. In the following text, the source SS, the active portion AT, and the drain DR may also be referred to as semiconductor patterns.
[0118] Semiconductor patterns SS, AT, and DR are disposed on a buffer layer BFL. In the following text, the semiconductor patterns SS, AT, and DR directly disposed on the buffer layer BFL can include silicon semiconductors, polycrystalline silicon semiconductors, or amorphous silicon semiconductors. Depending on whether the semiconductor patterns SS, AT, and DR are doped, they have different electrical characteristics. The semiconductor patterns SS, AT, and DR can include doped and undoped regions. Doped regions can be doped with N-type dopants or P-type dopants. A P-type transistor includes a doped region doped with P-type dopants.
[0119] The doped region can have a higher conductivity than the undoped region and can be essentially used as an electrode or signal line. The undoped region can essentially correspond to the active part (or channel) of the transistor. In other words, a portion of the semiconductor pattern SS, AT, and DR can be the active part AT of the first transistor TR-1, another portion can be the source SS or drain DR of the first transistor TR-1, and yet another portion can be a connection signal line (or connection electrode).
[0120] A first insulating layer 10 is disposed on the buffer layer BFL to cover the semiconductor patterns SS, AT, and DR. The first insulating layer 10 may include an inorganic layer and / or an organic layer, and has a single-layer or multi-layer structure. The first insulating layer 10 may include at least one of alumina, titanium oxide, silicon oxide, silicon oxynitride, zirconium oxide, and hafnium oxide. In this embodiment, the first insulating layer 10 may be a single-layer silicon oxide layer. The inorganic layer may include at least one of the above materials.
[0121] The gate GT can be disposed on the first insulating layer 10. The gate GT can be part of a metal pattern. On a plane, the gate GT can overlap with the active portion AT. In the process of doping semiconductor patterns SS, AT, and DR, the gate GT can act as a mask.
[0122] A second insulating layer 20 is disposed on the first insulating layer 10 to cover the gate GT. The second insulating layer 20 may be an inorganic layer and / or an organic layer, and may have a single-layer or multi-layer structure. In this embodiment, the second insulating layer 20 may include a single-layer silicon oxide layer.
[0123] The third insulating layer 30 may cover a portion of the second insulating layer 20 and may extend toward the first connecting portion CP1, the second connecting portion CP2, the third connecting portion CP3, and the fourth connecting portion CP4. The third insulating layer 30 may be an organic layer and have a single-layer or multi-layer structure. For example, the third insulating layer 30 may be a single-layer polyimide resin layer. However, the invention is not limited thereto, and the third insulating layer 30 may include at least one selected from acrylic resin, methacrylate resin, polyisoprene resin, vinyl resin, epoxy resin, urethane resin, cellulose resin, siloxane resin, polyamide resin, and dinaphthalene-based phenyl resin. Organic layers, described later, may include at least one of the above materials.
[0124] The upper electrode UE can be disposed on the second insulating layer 20. The upper electrode UE can overlap with the gate GT. The upper electrode UE can be part of a metal pattern or part of a doped semiconductor pattern. The upper electrode UE overlapping a portion of the gate GT can define a capacitor. In embodiments of the present invention, the upper electrode UE can be omitted.
[0125] The fourth insulating layer 40 can be disposed on the second insulating layer 20 to cover the upper electrode UE. The fourth insulating layer 40 can be an inorganic layer.
[0126] The fifth insulating layer 50 may be disposed on the fourth insulating layer 40. The fifth insulating layer 50 may be an organic layer and may have a single-layer or multi-layer structure. The fifth insulating layer 50 may extend toward the first connecting portion CP1, the second connecting portion CP2, the third connecting portion CP3, and the fourth connecting portion CP4.
[0127] The first connecting electrode CNE1 and the second connecting electrode CNE2 can be disposed on the fifth insulating layer 50. Each of the first connecting electrode CNE1 and the second connecting electrode CNE2 can pass through the insulating layers 10, 20, 40 and 50 and be electrically connected to the first transistor TR-1.
[0128] The sixth insulating layer 60 may be disposed on the fifth insulating layer 50 to cover the first connecting electrode CNE1 and the second connecting electrode CNE2. The sixth insulating layer 60 may be an inorganic layer and may have a single-layer or multi-layer structure.
[0129] The seventh insulating layer 70 may be disposed on the sixth insulating layer 60. The seventh insulating layer 70 may be an organic layer. The seventh insulating layer 70 may extend toward the first connecting portion CP1, the second connecting portion CP2, the third connecting portion CP3, and the fourth connecting portion CP4.
[0130] The first light-emitting element EML1, the second light-emitting element EML2, and the third light-emitting element EML3 can be disposed on the seventh insulating layer 70. The first light-emitting element EML1 may include a first anode AE1, a first emitting layer EL1, and a cathode CE; the second light-emitting element EML2 may include a second anode AE2, a second emitting layer EL2, and a cathode CE; and the third light-emitting element EML3 may include a third anode AE3, a third emitting layer EL3, and a cathode CE.
[0131] The first anode AE1 can pass through the sixth insulating layer 60 and the seventh insulating layer 70, and can be electrically connected to the first transistor TR-1. The second anode AE2 can pass through the sixth insulating layer 60 and the seventh insulating layer 70, and can be electrically connected to the second transistor TR-2. The third anode AE3 can pass through the sixth insulating layer 60 and the seventh insulating layer 70, and can be electrically connected to the third transistor TR-3.
[0132] A pixel-defining layer (PDL) can be disposed on a seventh insulating layer 70. Openings exposing the first anode AE1, the second anode AE2, and the third anode AE3 can be defined in the pixel-defining layer (PDL). In a plane, the shape of each of the openings can be... Figure 7 The shapes of each of the third pixels PAR-3, PAB-3, and PAG-3 shown correspond to each other.
[0133] A first emitting layer EL1 can be disposed on a first anode AE1, and the first emitting layer EL1 can provide red light. A second emitting layer EL2 can be disposed on a second anode AE2, and the second emitting layer EL2 can provide blue light. A third emitting layer EL3 can be disposed on a third anode AE3, and the third emitting layer EL3 can provide green light. Although patterned first emitting layers EL1, second emitting layers EL2, and third emitting layers EL3 are shown as an example in this embodiment, the invention is not limited thereto. For example, the first emitting layers EL1, second emitting layers EL2, and third emitting layers EL3 can be connected to each other and commonly disposed in third pixels PAR-3, PAB-3, and PAG-3. In this case, the first emitting layers EL1, second emitting layers EL2, and third emitting layers EL3 can generate white light or blue light. Furthermore, the first emitting layers EL1, second emitting layers EL2, and third emitting layers EL3 can have a multilayer structure.
[0134] The cathode CE can be disposed on the first emission layer EL1, the second emission layer EL2, and the third emission layer EL3. Although not shown, an electron control layer can be disposed between the cathode CE and the first emission layer EL1, the second emission layer EL2, and the third emission layer EL3, and a hole control layer can be disposed between the first anode AE1, the second anode AE2, and the third anode AE3 and the first emission layer EL1, the second emission layer EL2, and the third emission layer EL3.
[0135] The cover portion CP can be placed on the cathode CE. Figure 9 The cover portion CP shown can be compared with the reference. Figure 7 The first covering part, the second covering part, the third covering part, and the fourth covering part are described.
[0136] The cover layer CP may include a first inorganic layer 110, an organic layer 120, a second inorganic layer 130, a first color filter layer 140, a second color filter layer 150, a third color filter layer 160, and a light blocking layer 170.
[0137] A first inorganic layer 110 may be disposed on the cathode CE. An organic layer 120 may be disposed on the first inorganic layer 110. A second inorganic layer 130 may be disposed on the organic layer 120 to cover the organic layer 120. Each of the first inorganic layer 110 and the second inorganic layer 130 may include, but is not particularly limited to, a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer. The organic layer 120 may include, but is not particularly limited to, an acrylic-based organic layer. The first inorganic layer 110 and the second inorganic layer 130 may protect the first emission layer EL1, the second emission layer EL2, and the third emission layer EL3 from moisture / oxygen, and the organic layer 120 may protect the first emission layer EL1, the second emission layer EL2, and the third emission layer EL3 from foreign substances such as dust particles.
[0138] A first color filter layer 140, a second color filter layer 150, and a third color filter layer 160 may be disposed on the second inorganic layer 130. The second color filter layer 150 may be adjacent to the first color filter layer 140, and the third color filter layer 160 may be adjacent to the second color filter layer 150. In a planar plane, the first color filter layer 140 may overlap with the first anode AE1 and the first emission layer EL1. In a planar plane, the second color filter layer 150 may overlap with the second anode AE2 and the second emission layer EL2. In a planar plane, the third color filter layer 160 may overlap with the third anode AE3 and the third emission layer EL3. The first color filter layer 140 may be a red color filter layer, the second color filter layer 150 may be a blue color filter layer, and the third color filter layer 160 may be a green color filter layer.
[0139] In an embodiment of the present invention, a light-blocking layer 170 may be disposed on a second inorganic layer 130, a first color filter layer 140, a second color filter layer 150, and a third color filter layer 160. A first opening OP-1, a second opening OP-2, and a third opening OP-3 may be defined in the light-blocking layer 170. The first opening OP-1 may be defined on the first color filter layer 140, the second opening OP-2 may be defined on the second color filter layer 150, and the third opening OP-3 may be defined on the third color filter layer 160.
[0140] In an embodiment of the present invention, the light-blocking layer 170 may be disposed on the second inorganic layer 130. The first color filter layer 140, the second color filter layer 150, and the third color filter layer 160 may be disposed on the first opening OP-1, the second opening OP-2, and the third opening OP-3, respectively.
[0141] The first sensing line pattern SEL1 can be disposed on the light blocking layer 170. The first sensing line pattern SEL1 can be disposed on the first boundary BD1 between the first color filter layer 140 and the second color filter layer 150 and the second boundary BD2 between the second color filter layer 150 and the third color filter layer 160.
[0142] In embodiments of the present invention, a sensing insulating layer ILS (see...) can also be provided. Figure 6a For example, when inputting to the sensing layer ISL (see...) Figure 6a )have Figure 6a and Figure 6b In the stacked structure shown, the sensing insulating layer ILS can be disposed below the first sensing line pattern SEL1. When the input sensing layer ILS (see...) Figure 6c ) has such Figure 6c In the layered structure shown, the sensing insulating layer ILS can be disposed on the first sensing line pattern SEL1.
[0143] When the distance between the first sensing line pattern SEL1 and the cathode CE is less than a predetermined distance, the size of the parasitic capacitance generated between the first sensing line pattern SEL1 and the cathode CE increases. In this case, touch sensitivity and accuracy can be reduced by the parasitic capacitance. According to an embodiment of the present invention, the gap between the first sensing line pattern SEL1 and the cathode CE can be maintained at a predetermined distance or further by the cover portion CP. That is, even if the input sensing layer ISL (see...) Figure 3 ) on display device DD (see Figure 1a The settings are directly configured in the display panel DP (see...) Figure 3 On the cathode CE, the distance between the first sensing line pattern SEL1 and the cathode CE can also be maintained at a predetermined distance or further by the cover portion CP to improve touch sensitivity and accuracy. This predetermined distance can be 4 micrometers or more, and can be 7 micrometers or less, depending on the properties of the materials, etc. Figure 10 It is along Figure 7 The sectional view taken from line III-III'. Figure 10 It is a cross-sectional view of the area including the first connecting part CP1.
[0144] refer to Figure 7 , Figure 9 and Figure 10The blocking layer BRL, the buffer layer BFL, the line section SGP, the connecting cover section CCP, and the second sensing line pattern SEL2 can be sequentially disposed on the first connecting section CP1 of the base layer BL.
[0145] The line section SGP may include multiple insulation layers 30-1, 50-1 and 70-1 as well as signal lines SL, ECL and PL.
[0146] The first insulating layer 30-1 can be disposed on the buffer layer BFL. The first insulating layer 30-1 can be an organic layer and can have a single-layer or multi-layer structure. The first insulating layer 30-1 can be connected to the above reference. Figure 9 The third insulating layer 30 is described. That is, the third insulating layer 30 may extend throughout the first connection portion CP1 to form the first insulating layer 30-1.
[0147] At least some of the signal lines SL, ECL, and PL may be disposed on the first insulating layer 30-1. For example, the scan line SL and the transmit control line ECL may be disposed on the first insulating layer 30-1.
[0148] The second insulating layer 50-1 can be disposed on the first insulating layer 30-1 to cover the scan line SL and the emission control line ECL. The second insulating layer 50-1 can be an organic layer and can have a single-layer or multi-layer structure. The second insulating layer 50-1 can be connected to the above reference. Figure 9 The fifth insulating layer 50 is described.
[0149] Other portions of the signal lines SL, ECL, and PL can be disposed on the second insulating layer 50-1. For example, the power line PL can be disposed on the second insulating layer 50-1.
[0150] The third insulating layer 70-1 can be disposed on the second insulating layer 50-1 to cover the power line PL. The third insulating layer 70-1 can be an organic layer and can have a single-layer or multi-layer structure. The third insulating layer 70-1 can be connected to the above reference. Figure 9 The seventh insulating layer 70 is described.
[0151] The cathode CE can be disposed on the third insulating layer 70-1.
[0152] The connecting cover (CCP) can be installed on the cathode (CE). Figure 10 The connecting cover portion CCP shown can be connected to the reference. Figure 7 The first connecting cover, the second connecting cover, the third connecting cover, and the fourth connecting cover are described.
[0153] The connecting cover portion CCP may include a first connecting inorganic layer 110-1, a second connecting inorganic layer 130-1, a first compensation layer 140-1, a second compensation layer 150-1, a third compensation layer 160-1, and a connecting light blocking layer 170-1.
[0154] The first connecting inorganic layer 110-1 can be disposed on the cathode CE. The first connecting inorganic layer 110-1 can extend from the first inorganic layer 110.
[0155] The second connecting inorganic layer 130-1 can be disposed on the first connecting inorganic layer 110-1. The second connecting inorganic layer 130-1 can extend from the second inorganic layer 130.
[0156] The first compensation layer 140-1 may be disposed on the second connecting inorganic layer 130-1. The first compensation layer 140-1 may include the same material as the first color filter layer 140 and be formed by the same process as the first color filter layer 140.
[0157] The second compensation layer 150-1 may be disposed on the first compensation layer 140-1. The second compensation layer 150-1 may include the same material as the second color filter layer 150 and be formed by the same process as the second color filter layer 150.
[0158] The third compensation layer 160-1 may be disposed on the second compensation layer 150-1. The third compensation layer 160-1 may include the same material as the third color filter layer 160 and be formed by the same process as the third color filter layer 160.
[0159] The connecting light blocking layer 170-1 can be disposed on the third compensation layer 160-1. The connecting light blocking layer 170-1 can extend from the light blocking layer 170.
[0160] The second sensing line pattern SEL2 can be disposed on the connecting light blocking layer 170-1. The second sensing line pattern SEL2 can be disposed on the first region ARa in a plane to overlap with the first region ARa. Alternatively, the second sensing line pattern SEL2 may not overlap with the second region ARb in a plane. For example, the second sensing line pattern SEL2 may be spaced apart from the second region ARb in a plane.
[0161] When changing the display device DD (see...) Figure 1a When the shape is such that the tensile stress generated in the second region ARb is greater than the tensile stress generated in the first region ARa, the tensile stress can cause cracks or fractures in the line. According to an embodiment of the present invention, since the second sensing line pattern SEL2 is disposed on the first region ARa, the possibility of the second sensing line pattern SEL2 breaking or the possibility of the second sensing line pattern SEL2 breaking can be reduced.
[0162] According to an embodiment of the present invention, since the distance between the second sensing line pattern SEL2 and the cathode CE is maintained at a predetermined distance or further by the connecting cover portion CCP, touch sensitivity and accuracy can be improved.
[0163] The first sensing line pattern SEL1 and the second sensing line pattern SEL2 can be connected to each other. According to an embodiment of the present invention, the height difference between the top surface of the connecting cover portion CCP and the top surface of the cover portion CP can be reduced. Therefore, the possibility of the first sensing line pattern SEL1 and the second sensing line pattern SEL2 becoming disconnected can be reduced.
[0164] In embodiments of the present invention, some components connecting the cover portion CCP can be omitted. For example, one or more of the first compensation layer 140-1, the second compensation layer 150-1, the third compensation layer 160-1, and the light blocking layer 170-1 connecting the cover portion CCP can be omitted.
[0165] Figure 11 It is along Figure 7 A sectional view taken from line III-III'. Figure 11 In the middle, the description and Figure 10 The different parts, and will be related to Figure 10 Components that are identical to each other use the same reference marker, and therefore, their descriptions will be omitted.
[0166] refer to Figure 11 The second sensing line pattern SEL2a may include a first sub-sensing layer SEL2-1 and a second sub-sensing layer SEL2-2. The second sub-sensing layer SEL2-2 may be disposed on a different layer than the first sub-sensing layer SEL2-1, and the second sub-sensing layer SEL2-2 may be electrically connected to the first sub-sensing layer SEL2-1. The first sub-sensing layer SEL2-1 may include elements connected to the first connection pattern CE1 (see...). Figure 5 The second sub-sensing layer SEL2-2 may include the same material as the second connection pattern CE2 (see...). Figure 5 The same material, and the sensing insulating layer ILS extends to the region between the first sub-sensing layer SEL2-1 and the second sub-sensing layer SEL2-2. The first sensing line pattern SEL1 (see...) Figure 9 The first sensing line pattern SEL1 and the second sensing line pattern SEL2a can be connected to each other. For example, the first sensing line pattern SEL1 can be connected to the first sub-sensing layer SEL2-1.
[0167] When changing the display device DD (see...) Figure 1a When the shape is such that stress can be applied to... Figure 7The first connecting portion CP1, the second connecting portion CP2, the third connecting portion CP3, and the fourth connecting portion CP4 are shown. According to an embodiment of the present invention, the second sensing line pattern SEL2a can be configured as a stacked structure comprising multiple conductive layers. In this case, even if a break occurs in one of the two layers, an electrical signal can still be transmitted to the other layer to improve product reliability.
[0168] Figure 12 It is along Figure 7 A sectional view taken from line II-II'. Figure 12 In the middle, the description and Figure 9 The different parts, and will be related to Figure 9 Components that are identical to each other use the same reference marker, and therefore, their descriptions will be omitted.
[0169] refer to Figure 12 The cover portion CPa can be disposed on the cathode CE. The cover portion CPa may include a first inorganic layer 110, an organic layer 120, and a second inorganic layer 130.
[0170] The first inorganic layer 110 can be disposed on the cathode CE. The organic layer 120 can be disposed on the first inorganic layer 110. The second inorganic layer 130 can be disposed on the organic layer 120 to cover the organic layer 120.
[0171] The first sensing line pattern SEL1 can be disposed on the second inorganic layer 130. In a plane, the first sensing line pattern SEL1 can overlap with the pixel defining layer PDL. The gap between the first sensing line pattern SEL1 and the cathode CE can be maintained at a predetermined distance or further by the cover portion CPa. This predetermined distance can be 4 micrometers or more and 7 micrometers or less. However, the predetermined distance is not limited to illustrative values. That is, even if the input sensing layer ISL (see...) Figure 3 ) on display device DD (see Figure 1a The settings are directly configured in the display panel DP (see...) Figure 3 On the surface, the distance between the first sensing line pattern SEL1 and the cathode CE can also be maintained at a predetermined distance or further by the cover CPa to improve touch sensitivity and accuracy.
[0172] Figure 13 It is along Figure 7 A sectional view taken from line II-II'. Figure 13 In the middle, the description and Figure 9 The different parts, and will be related to Figure 9 Components that are identical to each other use the same reference marker, and therefore, their descriptions will be omitted.
[0173] refer to Figure 13The cover portion CPb can be disposed on the cathode CE. The cover portion CPb may include a first inorganic layer 110, a first organic layer 120, a second inorganic layer 130, a second organic layer 121, and a third inorganic layer 131.
[0174] A first inorganic layer 110 may be disposed on the cathode CE. A first organic layer 120 may be disposed on the first inorganic layer 110. A second inorganic layer 130 may be disposed on the first organic layer 120 to cover the first organic layer 120. A second organic layer 121 may be disposed on the second inorganic layer 130. A third inorganic layer 131 may be disposed on the second organic layer 121 to cover the second organic layer 121.
[0175] The first sensing line pattern SEL1 can be disposed on the third inorganic layer 131. In a planar plane, the first sensing line pattern SEL1 can overlap with the pixel defining layer PDL. The gap between the first sensing line pattern SEL1 and the cathode CE can be maintained at a predetermined distance or further by the cover portion CPb. This predetermined distance can be 4 micrometers or greater and 7 micrometers or less. However, the predetermined distance is not limited to the illustrative values.
[0176] Figure 14 It is along Figure 7 A sectional view taken from line II-II'. Figure 14 In the middle, the description and Figure 9 and Figure 12 The different parts, and will be related to Figure 9 and Figure 12 Components that are identical to each other use the same reference marker, and therefore, their descriptions will be omitted.
[0177] refer to Figure 14 The cover portion CPc can be disposed on the cathode CE. The cover portion CPc may include a first inorganic layer 110, an organic layer 120, a second inorganic layer 130, and a light blocking layer 170. The first sensing line pattern SEL1 can be disposed on the light blocking layer 170.
[0178] Figure 15 It is along Figure 7 A sectional view taken from line III-III'. Figure 15 In the middle, the description and Figure 11 The different parts, and will be related to Figure 11 Components that are identical to each other use the same reference marker, and therefore, their descriptions will be omitted.
[0179] refer to Figure 15 The connecting cover portion CCPA can be disposed on the cathode CE. The connecting cover portion CCPA may include a first connecting inorganic layer 110-1, a second connecting inorganic layer 130-1, and a connecting light blocking layer 170-1.
[0180] The first connecting inorganic layer 110-1 can be disposed on the cathode CE. The first connecting inorganic layer 110-1 can be disposed on the first inorganic layer 110 (see...). Figure 14 The second connecting inorganic layer 130-1 can be disposed on the first connecting inorganic layer 110-1. The second connecting inorganic layer 130-1 can extend from the second inorganic layer 130 (see...). Figure 14 The light-blocking layer 170-1 can be extended from the second connecting inorganic layer 130-1. Figure 14 (Extension). The second sensing line pattern SEL2a can be set on the connecting light blocking layer 170-1.
[0181] refer to Figures 12 to 14 The described overlays CPa, CPb, and CPc may exclude filter layers 140, 150, and 160 (see [link to documentation]). Figure 9 In this case, the connecting cover portion CCPA may not include the first compensation layer 140-1, the second compensation layer 150-1, and the third compensation layer 160-1 (see...). Figure 10 ).
[0182] Figure 16 It is along Figure 7 A sectional view taken from line II-II'. Figure 16 In the middle, the description and Figure 9 The different parts, and will be related to Figure 9 Components that are identical to each other use the same reference marker, and therefore, their descriptions will be omitted.
[0183] refer to Figure 16 The cover portion CPd can be disposed on the cathode CE. The cover portion CPd may include a first inorganic layer 110, a second inorganic layer 130, a first color filter layer 140, a second color filter layer 150, a third color filter layer 160, and a light blocking layer 170.
[0184] A first inorganic layer 110 can be disposed on the cathode CE. A second inorganic layer 130 can be disposed on the first inorganic layer 110. A first color filter layer 140, a second color filter layer 150, and a third color filter layer 160 can be disposed on the second inorganic layer 130. A light-blocking layer 170 can cover the first color filter layer 140, the second color filter layer 150, and the third color filter layer 160, and can define a first opening OP-1, a second opening OP-2, and a third opening OP-3 in the light-blocking layer 170.
[0185] The first sensing line pattern SEL1 can be disposed on the light blocking layer 170. On a plane, the first sensing line pattern SEL1 can overlap with the pixel defining layer PDL. The gap between the first sensing line pattern SEL1 and the cathode CE can be maintained at a predetermined distance or further by the cover portion CPd.
[0186] Figure 17 It is along Figure 7 A sectional view taken from line II-II'. Figure 17 In the middle, the description and Figure 16 The different parts, and will be related to Figure 16 Components that are identical to each other use the same reference marker, and therefore, their descriptions will be omitted.
[0187] refer to Figure 17 When with Figure 16 Compared to the coverage portion CPd, the coverage portion CPe may not include the light-blocking layer 170 (see...). Figure 16 Therefore, the first sensing line pattern SEL1 can be disposed on the first color filter layer 140, the second color filter layer 150, and the third color filter layer 160.
[0188] A light-blocking layer 170a covering the first sensing line pattern SEL1 can be provided on the first sensing line pattern SEL1. Therefore, it is possible to prevent light incident from the outside from being reflected by the first sensing line pattern SEL1.
[0189] Figure 18 It is along Figure 7 A sectional view taken from line II-II'. Figure 18 In the middle, the description and Figure 9 The different parts, and will be related to Figure 9 The same components use the same reference numerals, and therefore, their descriptions will be omitted.
[0190] refer to Figure 18 When with Figure 9 Compared to the coverage portion CP, the coverage portion CPf may not include the light blocking layer 170 (see...). Figure 9 Therefore, the first sensing line pattern SEL1 can be disposed on the first color filter layer 140, the second color filter layer 150, and the third color filter layer 160.
[0191] A light-blocking layer 170a covering the first sensing line pattern SEL1 can be provided on the first sensing line pattern SEL1. Therefore, it is possible to prevent light incident from the outside from being reflected by the first sensing line pattern SEL1.
[0192] Figure 19 It shows the setting with Figure 5A floor plan of a component within the region corresponding to region XX'.
[0193] exist Figure 19 Only the base layer BL, the first sensing pattern SE1, the second sensing pattern SE2, and the second connection pattern CE2 are shown.
[0194] The base layer (BL) may include the island IP and the connector CPP. When changing the display panel DP (see...) Figure 3 When the shape is ), the distance between adjacent connecting parts CPP can be increased.
[0195] The first sensing pattern SE1, the second sensing pattern SE2, and the second connection pattern CE2 can be disposed on the same layer. Furthermore, the first sensing pattern SE1, the second sensing pattern SE2, and the second connection pattern CE2 can comprise the same material and be formed using the same process. The first connection pattern CE1 (see...) Figure 5 The first sensing pattern SE1 can be disposed on a different layer than the first sensing pattern SE1, the second sensing pattern SE2, and the second connecting pattern CE2. The second sensing pattern SE2 and the second connecting pattern CE2 are connected to each other and can therefore have an integral shape. The first sensing pattern SE1 can be spaced apart from the second sensing pattern SE2 and the second connecting pattern CE2.
[0196] A break portion CLP may be defined between the first sensing pattern SE1 and the second sensing pattern SE2, and between the first sensing pattern SE1 and the second connecting pattern CE2. The break portion CLP may be provided by removing a portion of the metal pattern constituting the first sensing pattern SE1, the second sensing pattern SE2, and the second connecting pattern CE2.
[0197] In embodiments of the present invention, the location of the disconnection portion CLP may be defined above the connecting portion CPP. However, the present invention is not limited thereto, and the disconnection portion CLP may be provided on the island portion IP. Furthermore, in embodiments of the present invention, a portion of the disconnection portion CLP may be defined on the island portion IP, and another portion of the disconnection portion CLP may be defined on the connecting portion CPP.
[0198] Each of the connecting parts CPP can have its shape changed to match the display panel DP (see...) Figure 3 The shape of the part CLP changes corresponding to the area. When the part CLP is defined above the connecting part CPP, the width of each part CLP can increase or decrease as the shape of the connecting part CPP changes. That is, the distance between two patterns facing each other, with the part CLP located between the two patterns, can be changed.
[0199] The distance between the first sensing pattern SE1 and the second connecting pattern CE2 facing each other, and the distance between the first sensing pattern SE1 and the second sensing pattern SE2 facing each other, can be changed correspondingly to the change in the shape of the connecting portion CPP. Therefore, corresponding to the change in the shape of the connecting portion CPP, the degree of change in the shape of the first sensing pattern SE1, the second sensing pattern SE2, and the second connecting pattern CE2 can be reduced. Therefore, the stress applied to the first sensing pattern SE1, the second sensing pattern SE2, and the second connecting pattern CE2 can be reduced.
[0200] It will be apparent to those skilled in the art that various modifications and variations can be made to this invention. Therefore, this invention is intended to cover such modifications and variations, provided they fall within the scope of the appended claims and their equivalents. Consequently, the scope of this invention should not be limited to what is described in the detailed description of the specification, but should be determined by the claims.
[0201] Industrial applicability
[0202] The present invention relates to a stretchable display device that can improve touch sensitivity and accuracy, and the input sensing layer has a reduced possibility of disconnection, and therefore has high industrial applicability.
Claims
1. A display device, comprising: Display panel, configured to display images; as well as The input sensing layer is directly mounted on the display panel and includes sensing and connection patterns. The display panel includes: The base layer includes a first island portion, a second island portion spaced apart from the first island portion, and a connecting portion configured to connect the first island portion to the second island portion and having a shape extending in a first direction; The first pixel is set on the first island portion; The second pixel is set on the second island portion; A signal line is disposed on the connecting portion and electrically connected to the first pixel and the second pixel; A first covering portion is configured to cover the first pixel; A second covering portion is configured to cover the second pixel; and The connecting cover is provided on the signal line. Each of the sensing patterns includes a first sensing line pattern disposed on the first cover portion and the second cover portion, and a second sensing line pattern disposed on the connecting cover portion. The connecting portion includes a first region and a second region, each of the first region and the second region having a shape extending in the first direction, and the first region and the second region being adjacent to each other in a second direction intersecting the first direction, wherein the first region is spaced apart from the first island portion and the second island portion, and the second region is located between the first region and the first island portion and the second island portion, and the second sensing line pattern is disposed on the first region.
2. The display device according to claim 1, wherein, Each of the first covering portion and the second covering portion includes: First inorganic layer; An organic layer is disposed on the first inorganic layer; and The second inorganic layer is configured to cover the organic layer. The first sensing line pattern is disposed on the second inorganic layer.
3. The display device according to claim 2, wherein, Each of the first cover portion and the second cover portion further includes a light blocking layer disposed between the second inorganic layer and the first sensing line pattern.
4. The display device according to claim 3, wherein, The connection cover includes: A first connecting inorganic layer, extending from the first inorganic layer; and A second connecting inorganic layer extends from the second inorganic layer and is disposed on the first connecting inorganic layer.
5. The display device according to claim 4, wherein, The connection cover also includes a connection light blocking layer disposed on the second connection inorganic layer and extending from the light blocking layer.
6. The display device according to claim 2, wherein, Each of the first covering portion and the second covering portion further includes: The first color filter layer is disposed on the second inorganic layer; A second color filter layer is disposed on the second inorganic layer and adjacent to the first color filter layer; and The third color filter layer is disposed on the second inorganic layer and adjacent to the second color filter layer. The first sensing line pattern is disposed on the first color filter layer, the second color filter layer, and the third color filter layer.
7. The display device according to claim 6, wherein, The connection cover includes: The first compensation layer comprises the same material as the first color filter layer; The second compensation layer comprises the same material as the second color filter layer; and The third compensation layer comprises the same material as the third color filter layer. The second sensing line pattern is disposed on the third compensation layer.
8. The display device according to claim 7, wherein, The connection cover also includes a light-blocking layer disposed between the third compensation layer and the second sensing line pattern.
9. The display device according to claim 6, wherein, Each of the first and second covering portions further includes a light-blocking layer disposed between the first sensing line pattern and the first color filter layer to the third color filter layer. The light-blocking layer has an opening defined within it.
10. The display device according to claim 6, wherein, Each of the first and second covering portions further includes a light-blocking layer configured to cover the first sensing line pattern.
11. The display device according to claim 1, wherein, Each of the first covering portion and the second covering portion includes: First inorganic layer; The second inorganic layer is directly disposed on the first inorganic layer; The first color filter layer is disposed on the second inorganic layer; A second color filter layer is disposed on the second inorganic layer and adjacent to the first color filter layer; and The third color filter layer is disposed on the second inorganic layer and adjacent to the second color filter layer. The first sensing line pattern is disposed on the first color filter layer, the second color filter layer, and the third color filter layer.
12. The display device according to claim 11, wherein, Each of the first cover portion and the second cover portion further includes a light blocking layer disposed between the first color filter layer and the third color filter layer of the first sensing line pattern.
13. The display device according to claim 11, wherein, Each of the first and second covering portions further includes a light-blocking layer configured to cover the first sensing line pattern.
14. The display device according to claim 1, wherein, Each of the first covering portion and the second covering portion includes: First inorganic layer; The first organic layer is disposed on the first inorganic layer; A second inorganic layer is disposed on the first organic layer; A second organic layer is disposed on the second inorganic layer; and The third inorganic layer is configured to cover the second organic layer. The first sensing line pattern is disposed on the third inorganic layer.
15. The display device according to claim 1, wherein, The second sensing line pattern includes: A first sub-sensing layer, connected to the first sensing line pattern; and The second sub-sensing layer is disposed on a different layer than the first sub-sensing layer. The first sub-sensing layer and the second sub-sensing layer are electrically connected to each other.
16. The display device according to claim 15, wherein, The sensing pattern includes a first sensing pattern and a second sensing pattern. The connection pattern includes a first connection pattern connected to the first sensing patterns adjacent to each other and a second connection pattern connected to the second sensing patterns adjacent to each other, and The input sensing layer also includes a sensing insulating layer disposed between the first connection pattern and the second connection pattern.
17. The display device according to claim 16, wherein, The first sub-sensing layer comprises the same material as the first connection pattern. The second sub-sensing layer comprises the same material as the second connection pattern, and The sensing insulating layer extends into the region between the first sub-sensing layer and the second sub-sensing layer.
18. The display device according to claim 1, wherein, The input sensing layer further includes a light-absorbing layer disposed on at least a portion of the sensing pattern and the connection pattern.
19. A display device, comprising: Display panel, configured to display images; as well as The input sensing layer is directly mounted on the display panel and includes sensing and connection patterns. The display panel includes: The base layer includes a first island portion, a second island portion spaced apart from the first island portion, and a connecting portion configured to connect the first island portion to the second island portion; The first pixel is set on the first island portion; The second pixel is set on the second island portion; A signal line is provided on the connecting part and electrically connected to the first pixel and the second pixel; A first covering portion is disposed on the first pixel and configured to cover the first pixel; A second covering portion is disposed on the second pixel and configured to cover the second pixel; and The connecting cover is provided on the signal line. The sensing pattern includes a first sensing line pattern disposed on the first and second covering portions, thereby overlapping with the first and second island portions, and a second sensing line pattern disposed on the connecting covering portion, thereby overlapping with the connecting portion and connecting to the first sensing line pattern. Each of the first and second covering portions includes a color filter layer. The connection cover includes a compensation layer, and The compensation layer comprises the same material as the color filter layer.
20. The display device according to claim 19, wherein, The connecting portion has a shape that extends from the first island portion to the second island portion in a first direction. The connecting portion includes a first region and a second region, each of the first region and the second region having a shape extending in the first direction. The first region is spaced apart from the first island portion and the second island portion, and the second region lies between the first region and the first island portion and the second island portion in a second direction intersecting the first direction. The second sensing line pattern overlaps with the first region on the plane and is spaced apart from the second region.
Citation Information
Patent Citations
Stretchable display device
KR1020170088013A
KR1018347920000B1