Patent ID: 12225765

DETAILED DESCRIPTION

In order to clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the present disclosure is further described below with reference to the accompanying drawings and embodiments.

It should be understood that the described embodiments are only a part of various embodiments of the present disclosure, rather than all of various embodiments. Based on various embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without creative work shall fall within the protection scope of the present disclosure.

The terms used in various embodiments of the present disclosure are only for the purpose of describing specific embodiments, and are not intended to limit the present disclosure. The singular forms of “a”, “said” and “the” used in various embodiments of the present disclosure and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

It should be understood that the term “and/or” used in the present specification is only an association relationship describing associated objects, indicating that there can be three types of relationships. For example, A and/or B can indicate three cases including A alone, and both A and B, and B alone. In addition, the character “/” in the present specification normally indicates that before-after associated objects are in an “or” relationship.

Furthermore, unless otherwise clearly stated to the contrary, the “include” in the following description may be understood as including the elements, but not excluding any other elements.

Referring toFIGS.1-2,FIG.1illustrates a schematic of a display panel in the existing technology; andFIG.2illustrates a cross-sectional view of an X-X cross-section inFIG.1. As shown inFIGS.1-2, a display panel000may include a display region AA and a non-display region NA; the non-display region NA may be located on at least one side of the display region AA; and along the light-exiting direction of the display panel000, a substrate001, a light-emitting unit layer002and a light-blocking layer003may be disposed sequentially.

The light-emitting unit layer002may be located on one side of the substrate001; the light-emitting unit layer may include pixel units0021arranged in an array; and the pixel units0021may be located at the display region AA.

The light-blocking layer003may be located on one side of the light-emitting unit layer002away from the substrate001, and the light-blocking layer003may include first openings0031. The first openings0031may be located at the display region AA; and along the direction perpendicular to the substrate, and the pixel units0021may correspond to the first openings0031.

It can be seen fromFIGS.1-2that, in the existing technology, the morphology of the light-blocking layer003at the display region AA may be significantly different from the morphology of the light-blocking layer003at the non-display region NA. Such significant difference may cause the thicknesses of the film layers at the edge of the display region AA to change during a subsequent film layer formation process, resulting in inconsistent film thicknesses at the center and edge of the display region AA, thereby affecting the display uniformity of the entire display panel. Furthermore, the current development of display panels gradually moves toward integration, a touch-control layer and a color resist layer may be prepared directly above an encapsulation layer; and as the film layers are stacked sequentially, the thicknesses of the film layers at the edge may be further worsened, which may more obviously affect light-exiting of the display panel.

In order to solve the above-mentioned problem,FIG.3illustrates a cross-sectional view of an exemplary display panel according to various embodiments of the present disclosure. As shown inFIG.3, one embodiment of the present disclosure provides a display panel100. The display panel100may include a display region AA and a non-display region NA. The non-display region NA may be located on at least one side of the display region AA; and along the light-exiting direction of the display panel100, a substrate101, a light-emitting unit layer102and a light-blocking layer103may be disposed sequentially.

The light-emitting unit layer102may be located on one side of the substrate101; the light-emitting unit layer may include pixel units1021arranged in an array; and the pixel units1021may be located at the display region AA.

The light-blocking layer103may be located on one side of the light-emitting unit layer102away from the substrate101, and may include first openings1031and second openings1032. The first openings1031may be located at the display region AA; and along the direction perpendicular to the substrate, the pixel units1021may correspond to the first openings1031. The second openings1032may be located at least on one side of the non-display region NA adjacent to the display region AA. It should be noted that the quantity and size of the second openings1032inFIG.3may be merely for illustration. The arrangement manner of the second openings1032may be selected to be same as or different from the arrangement manner of the first openings1031of the display region AA, which may not be limited herein.

By disposing the second openings1032of the light-blocking layer103at the non-display region NA, a sufficient transition region may be provided. After the light-blocking layer103is patterned, the region with uneven film thickness that should be located at the display region AA may be moved to the non-display region NA when the upper film layers continue to be stacked, thereby increasing the display uniformity of the entire display region AA. Since the second openings1032are located at the non-display region NA, the region with uneven film thickness corresponding to the second openings may not affect the display effect. In one embodiment,FIG.4illustrates a cross-sectional view of another exemplary display panel according to various embodiments of the present disclosure. The non-display region may include a wiring region LA and a driving circuit region VSR. The wiring region LA may be adjacent to the display region AA, and the driving circuit region VSR may be located on one side of the wiring region LA away from the display region AA.

The pixel circuit at the display region AA may be electrically connected to the driving circuit in the driving circuit region VSR through various signal wires1041. It should be understood that the wiring region LA may not include display pixels or any components in the driving circuit, but only include a part of the signal wires1041.

The second openings1032may be located at least at the wiring region LA. Since large-surface metal1042may be included in the driving circuit region VSR, if the second openings1032in the light-blocking layer103are directly extended to the driving circuit region VSR, the reflectivity of the entire display panel may increase. Therefore, the second openings1032of the light-blocking layer103at the non-display region may be more disposed at the wiring region LA for transition, which can take into account both the display uniformity and the overall reflectivity of the display panel.

In one embodiment, as shown inFIG.4, the arrangement pattern of the second openings1032at the wiring region LA may be same as the arrangement pattern of the pixel units1021. Since the first openings1031correspond to the pixel units1021in a one-to-one relationship and the quantity of the first openings1031is same as the quantity of the pixel units1021, setting the arrangement pattern of the second openings1032at the wiring region LA to be same as the arrangement pattern of the pixel units1021may further balance the difference between the second openings1032and the first openings1031at the wiring region LA. In such way, when the boundary of the opening region of the light-blocking layer103is expanded and upper film layers continue to be stacked, the region with uneven film thicknesses that should be located at the display region AA may be moved to the non-display region NA, which may prevent the region with uneven film thicknesses from being excessively large to affect the display effect of the display region AA, thereby further increasing the display uniformity of the entire display region AA.

In one embodiment, as shown inFIG.4, the display panel100may further include a color resist layer105. The color resist layer105may be located on one side of the light-emitting unit layer102away from the substrate101; and the color resist layer105may include color resist units1051arranged in an array. Along the direction perpendicular to the substrate, the projection of the color resist units1051on the light-blocking layer may at least cover the first openings1031and a part of the second openings1032.

By disposing the second openings1032at the non-display region NA and covering the second openings1032with the color resist units1051, the region where the second openings1032are disposed may be similar to the filter structure of the display region AA, which may reduce the reflectivity difference between the non-display region NA and the display region AA of the display panel100, further reduce the appearance difference between the non-display region NA and the display region AA of the display panel100when the display backlight is off, improve the appearance consistency of the display panel100within the visible range of human eyes when the display backlight is off, and realize the integrative black effect of the frame when the display backlight is off.

In one embodiment,FIG.5illustrates a schematic of an exemplary display panel according to various embodiments of the present disclosure. The color resist layer105may include a plurality of first-color color resists10511; and the first-color color resists10511may refer to all color resist blocks of a same color in the display panel.

The first opening1031may include a first sub-opening10311; and along the direction perpendicular to the substrate, the first sub-opening10311may correspond to one first-color color resist10511.

The second opening1032may include a second sub-opening10321; and along the direction perpendicular to the substrate, and the second sub-opening10321may correspond to one first-color color resist10511.

The opening area of the second sub-opening10321at the wiring region LA may be greater than or equal to the opening area of the first sub-opening10311.

As shown inFIG.5, the first sub-opening10311and the second sub-opening10321are both rectangular, so that the opening area of the first sub-opening10311is S1=L1×H1, and the opening area of the second sub-opening10321is S2=L2×H2where S1≤S2. Since the signal wiring at the wiring region LA is normally horizontal, it should at least satisfy the following: L1<L2. L1and L2are the dimensions of the first sub-opening10311and the second sub-opening10321along a second direction Y respectively; and H1and H2are the dimensions of the first sub-opening10311and the second sub-opening10321along a first direction X respectively. The first direction X and the second direction Y may be perpendicular to each other in a plane in parallel with the substrate101. The shapes of the first sub-opening10311and the second sub-opening10321may include, but may not be limited to, the above-mentioned rectangles. Optionally, the second sub-opening10321may be a similar shape of the first sub-opening10311. For example, similar shapes may be rectangles with different widths and lengths. Optionally, the second sub-opening10321and the first sub-opening10311may have completely different shapes, as long as it may satisfy that the opening area of the second sub-opening10321at the wiring region LA is greater than or equal to the opening area of the first sub-opening10311.

As shown inFIG.6,FIG.6illustrates a cross-sectional view of another exemplary display panel according to various embodiments of the present disclosure. The light-emitting unit layer102may include a pixel defining layer1022. The pixel defining layer1022may include a plurality of pixel openings arranged in an array. The pixel units1021may correspond to the pixel openings in a one-to-one relationship, and may be disposed in the pixel openings. The pixel unit1021may be the smallest repeating unit for displaying. Along the light-exiting direction of the display panel, the pixel unit1021may include a first electrode10211, a light-emitting layer10212, and a second electrode10213which are stacked sequentially. In order to make the organic light-emitting diode device emit light to the top, the first electrode10211at the bottom of the light-emitting layer10212may be made of a metal material; the light emitted from the light-emitting layer10212may be reflected by the first electrode10211after being incident on the first electrode10211, such that the light may be finally emitted to the top. Meanwhile, due to the strong light-reflective properties of metal, when external light enters the OLED display panel when the display backlight is in an off-state, the first electrode10211exposed by the first opening1031may reflect the external light back.

Since the second opening1032is at least located at the wiring region LA of the non-display region NA, the second opening1032may expose the metal signal wires1041at a lower side. In order to ensure the reflectivity difference between the non-display region NA and the display region AA of the display panel100, the opening area of the second sub-opening10321at the wiring region LA may be set to be greater than or equal to the opening area of the first sub-opening10311. In such way, it may ensure that the metal area exposed by the second opening1032in a unit area may be similar to the metal area exposed by the first opening1031in the same unit area. Therefore, the reflectivity difference of various positions of the display panel100may be small when the display backlight is in an off-state, and the appearance difference between the non-display region NA and the display region AA of the display panel100may be further reduced when the display backlight is off, which may improve the appearance consistency of the display panel100within the visible range of human eyes when the display backlight is off, and realize the integrative black effect of the frame when the display backlight is off.

As shown inFIGS.6-7,FIG.7illustrates a cross-sectional view of another exemplary display panel according to various embodiments of the present disclosure. The wiring region LA may further include at least one reflecting unit1043. The reflecting unit1043may be located on the side of the light-blocking layer103adjacent to the substrate101; and the projection of the reflecting unit1043on the light-blocking layer103may overlap the second opening1032. Since the signal wires1041at the wiring region LA are not evenly distributed, the reflecting unit1043may be additional disposed to further balance the metal area exposed by each second opening1032at the wiring region LA, such that the area of the reflecting unit1043exposed by a single second opening1032may be approximately equal to the area of the first electrode10211exposed by the pixel opening at the pixel defining layer1022.

In the above-mentioned embodiments and drawings, the areas of the first openings corresponding to the color resists of different colors on the display panel may be same as an example. However, in an actual display panel, the areas of the first openings corresponding to the color resists of different colors may be different. Therefore, it is necessary to compare the openings corresponding to the color resists of a same color to have practical significance. Taking the openings corresponding to all of the first-color color resists10511on the display panel as an example, the area of the reflecting unit1043exposed by the second sub-opening10321may be set to be similar to the area of the first electrode10211exposed by the first sub-opening10311. In such way, it may ensure that the metal area exposed by the second opening1032in a unit area may be similar to the metal area exposed by the first opening1031in the same unit area. Therefore, the reflectivity difference of various positions of the display panel100may be small when the display backlight is in an off-state, and the appearance difference between the non-display region NA and the display region AA of the display panel100may be further reduced when the display backlight is off, which may improve the appearance consistency of the display panel100within the visible range of human eyes when the display backlight is off, and realize the integrative black effect of the frame when the display backlight is off.

As shown inFIG.6, the light-emitting unit layer102may further include a semiconductor layer10214, a first metal layer10215, and a second metal layer10216which are sequentially arranged along the direction away from the substrate101. A gate electrode insulating layer may also be disposed between the semiconductor layer10214and the first metal layer10215, and an interlayer insulating layer may also be disposed between the first metal layer10215and the second metal layer10216. The gate electrode insulating layer and the interlayer insulating layer may be inorganic layers made of silicon oxide, silicon nitride or metal oxide. The reflecting unit1043may be made of a same material at a same layer as the first metal layer10215to save processing steps.

As shown inFIG.7, the light-emitting unit layer102may further include a driving array located on one side of the first electrode10211adjacent to the substrate101, and the driving array may include at least one thin film transistor. A light-blocking metal layer10217may be also disposed on the side of the driving array adjacent to the substrate101. The light-blocking metal layer10217may achieve a light-blocking effect to prevent external light from affecting the mobility of carriers in the semiconductor layer10214. The light-blocking metal layer10217may be made of a metal material with desirable light-blocking properties such as copper, aluminum, iron and the like. The reflecting unit1043may be made of a same material at a same layer as the light-blocking metal layer10217to save processing steps.

Similarly, as shown inFIG.8,FIG.8illustrates a cross-sectional view of another exemplary display panel according to various embodiments of the present disclosure. The reflecting unit1043may also be made of a same material at a same layer as the first electrode10211to save processing steps. The first electrode10211may be made of ITO-Ag-ITO and the first metal layer10215may be made of molybdenum, such that a certain reflectivity difference may be between the first electrode10211and the first metal layer10215. Therefore, in order to further reduce the reflectivity difference in various positions of the display panel100when the display backlight is in an off-state, optionally, the reflecting unit1043and the first electrode10211may be made of a same material at a same layer. In such way, it may ensure that the metal area exposed by the second opening1032in a unit area may be similar to the metal area exposed by the first opening1031in the same unit area and the metal reflectivity of the exposed portions may be same. Therefore, the appearance difference between the non-display region NA and the display region AA of the display panel100may be further reduced when the display backlight is off, which may improve the appearance consistency of the display panel100within the visible range of human eyes when the display backlight is off, and realize the integrative black effect of the frame when the display backlight is off.

As shown inFIG.9,FIG.9illustrates a schematic of another exemplary display panel according to various embodiments of the present disclosure. The pixel units, the first openings1031and the second openings1032may all be arranged in an array using a smallest repeating unit M. The pixel units may include first sub-pixels; and along the direction perpendicular to the substrate, and the first sub-pixels may correspond to the first sub-openings10311in a one-to-one relationship and the quantity of the first sub-pixels may be same as the quantity of the first sub-openings10311. If the projection of the first electrode10211on the light-blocking layer103is located in the first sub-opening10311, the area of the first electrode10211may be less than the opening size of the first sub-opening10311at this point, and the first electrode10211may be completely exposed by the first sub-opening10311. When the area of the reflecting unit1043is equal to the area of the first electrode10211, the metal area exposed by the second opening1032in a unit area may be similar to the metal area exposed by the first opening1031in the same unit area. The opening area of the second opening1032is larger than the area of the reflecting unit1043, such that a gap may be between the edge of the second opening1032and the edge of the reflecting unit1043, and such gap may expose a part of the signal wires1041. Therefore, in order to balance the exposed metal areas, the area of the reflecting unit1043can also be set to be less than the area of the first electrode10211.

Similarly, when the area of the first electrode10211is greater than the opening size of the first sub-opening10311, the metal area of the first electrode10211exposed by the first sub-opening10311may be equal to the opening size of the first sub-opening10311, such that the area of the reflecting unit1043can be set to be less than or equal to the opening area S1of the first sub-opening10311. Taking the first sub-opening10311and the second sub-opening10321both being rectangles as an example, the opening area of the first sub-opening10311is S1=L1×H1, and the area of the reflecting unit1043is S3=L3×H3, where S1≥S3. L1and L3are the dimensions of the first sub-opening10311and the reflecting unit1043along the second direction Y respectively; and H1and H3are the dimensions of the first sub-opening10311and the reflecting unit1043along the first direction X respectively. The first direction X and the second direction Y may be perpendicular to each other in the plane in parallel with the substrate101. The shapes of the first sub-opening10311and the reflecting unit1043may include, but may not be limited to, the above-mentioned rectangles. Optionally, the reflecting unit1043may be a similar shape of the first sub-opening10311or the first electrode10211. Optionally, the reflecting unit1043and the first sub-opening10311may also have completely different shapes.

As shown inFIG.10,FIG.10illustrates a cross-sectional view of another exemplary display panel according to various embodiments of the present disclosure. The pixel defining layer1022may be disposed with a first through hole at the position of the reflecting unit1043, such that the reflecting unit1043may be electrically connected to the second electrode10213. Furthermore, the opening area of the first through hole on the side adjacent to the substrate101may be similar to the area of the reflecting unit1043, which may increase the contact area between the second electrode10213in the first through hole and the reflecting unit1043, and reduce the resistance of the second electrode10213, thereby effectively ensuring the display effect of the display panel.

As shown inFIGS.11-12,FIG.11illustrates a schematic of another exemplary display panel according to various embodiments of the present disclosure; andFIG.12illustrates a cross-sectional view of another exemplary display panel according to various embodiments of the present disclosure. The light-blocking layer103may further include third openings1033; and the third openings1033may be located in the driving circuit region VSR. Along the direction perpendicular to the substrate101, the projection of the color resist unit1051on the light-blocking layer103may cover the third opening1033. The third opening1033may include a third sub-opening10331; and along the direction perpendicular to the substrate101, the third sub-opening10331may correspond to one first-color resist10511. The opening area of the third sub-opening10331may be less than the opening area of the first sub-opening10311.

Since the large-surface metal1042exists in the driving circuit region VSR, if the third opening1033with the same area as the first opening1031is directly used, the reflectivity of the driving circuit region VSR may be relatively high. Also, the first sub-opening10311and the third sub-opening10331are assumed to be both rectangular, such that the opening area of the first sub-opening10311is S1=L1×H1, and the opening area of the third sub-opening10331is S4=L4×H4, where S1>S4. L1and L4are the dimensions of the first sub-opening10311and the third sub-opening10331along the second direction Y respectively; and H1and H4are the dimensions of the first sub-opening10311and the third sub-opening10331along the first direction X respectively. The first direction X and the second direction Y may be perpendicular to each other in the plane in parallel with the substrate101. The shapes of the first sub-opening10311and the third sub-opening10331may include, but may not be limited to, the above-mentioned rectangles. Optionally, the third sub-opening10331may be a similar shape of the first sub-opening10311. Optionally, the third sub-opening10331and the first sub-opening10311may have completely different shapes, as long as it may satisfy that the opening area of the third sub-opening10331is less than the opening area of the first sub-opening10311.

In order to ensure the light-exiting efficiency, the opening area of the first opening1031is greater than the area of the first electrode10211, such that the opening area of the third sub-opening10331may be set to be less than the opening area of the first sub-opening10311. In such way, it may ensure that the metal area exposed by the third opening1033in a unit area may be similar to the metal area exposed by the first opening1031in the same unit area. Therefore, the reflectivity difference of various positions of the display panel100may be small when the display backlight is in an off-state, and the appearance difference between the non-display region NA and the display region AA of the display panel100may be further reduced when the display backlight is off, which may improve the appearance consistency of the display panel100within the visible range of human eyes when the display backlight is off, and realize the integrative black effect of the frame when the display backlight is off.

As shown inFIG.13,FIG.13illustrates a schematic of another exemplary display panel according to various embodiments of the present disclosure. The pixel unit may include a first sub-pixel, and along the direction perpendicular to the substrate, the first sub-pixel may correspond to the first sub-opening10311. The first sub-pixel may include the first electrode10211, a light-emitting material, and the second electrode which are stacked sequentially; and the projection of the first electrode10211on the light-blocking layer103may be located in the first sub-opening10311. The opening area of one or more of the third sub-openings10331may be equal to the area of the first electrode10211.

In order to have uniform appearance transition of the display panel100, at least the opening area of the third sub-opening10331adjacent to the second opening may be equal to the area of the first electrode10211.

The first sub-opening10311and the third sub-opening10331are assumed to be both rectangular, such that the opening area of the first sub-opening10311is S5=L5×H5, and the opening area of the third sub-opening10331is S4=L4×H4, where S4=S5. L4and L5are the dimensions of the third sub-opening10331and the first electrode10211along the second direction Y respectively; and H4and H5are the dimensions of the third sub-opening10331and the first electrode10211along the first direction X respectively. The first direction X and the second direction Y may be perpendicular to each other in the plane in parallel with the substrate101. The shapes of the first sub-opening10311and the first electrode10211may include, but may not be limited to, the above-mentioned rectangles. Optionally, the third sub-opening10331may be a similar shape of the first electrode10211. Optionally, the third sub-opening10331and the first electrode10211may have completely different shapes, as long as it may satisfy that the opening area of the third sub-opening10331is equal to the opening area of the first electrode10211.

The first-color color resist may be a red color resist, a green color resist or a blue color resist. The opening area corresponding to the red color resist, the opening area corresponding to the green color resist, and the opening size corresponding to the blue color may all be different. Therefore, horizontal comparison of the openings corresponding to the color resists of a same color may be made in the present application. However, the present application may not be limited to that only the openings corresponding to the color resists of a same color satisfies the above-mentioned description, but it can be understood that all openings may be applicable to the above-mentioned rule.

In one embodiment of the present disclosure, as shown inFIG.14,FIG.14illustrates a schematic of an exemplary display device according to various embodiments of the present disclosure. The present disclosure provides a display device, including the display panel100described in the above-mentioned embodiments and a driving chip IC located on the display panel. The display panel100may further include a touch-control layer110; and the touch-control layer110may be located on the side of the light-blocking layer adjacent to the substrate. The touch-control layer110and the driving chip IC may be electrically connected through touch-control wires111; and along the direction perpendicular to the substrate, the touch-control wires111may overlap the non-display region.

Along the first direction X, the opening areas of the second openings1032and/or the third openings1033may gradually increase, where the first direction X may be the direction pointing from the side of the display panel adjacent to the driving chip to the side of the display panel away from the driving chip.

When the touch-control wires111are located at the wiring region LA, along the first direction X, the density (e.g., the quantity in a unit area) of the touch-control wires111may gradually decrease, such that the opening areas of the second openings1032may be set to gradually increase. In such way, it may ensure that the metal area exposed by the second opening1032in a unit area may be similar to the metal area exposed by the first opening1031in the same unit area. Therefore, the reflectivity difference of various positions of the display panel100may be small when the display backlight is in an off-state, and the appearance difference between the non-display region NA and the display region AA of the display panel100may be further reduced when the display backlight is off, which may improve the appearance consistency of the display panel100within the visible range of human eyes when the display backlight is off, and realize the integrative black effect of the frame when the display backlight is off.

The opening areas of the second openings1032gradually increase, which can be understood as that, along the first direction X, the sum of the opening areas of all second openings1032in the smallest repeating unit M on the side adjacent to the driving chip may be less than the sum of the opening areas of all second openings1032in the smallest repeating unit M on the side far from the driving chip; or the average opening area of all second openings1032in the smallest repeating unit M on the side adjacent to the driving chip may be less than the average opening area of all second openings1032in the smallest repeating unit M on the side far from the driving chip.

Similarly, when the touch-control wires111are located in the driving circuit region VSR, the density of the touch leads111may gradually decrease along the first direction X, such that the opening areas of the third openings1033may be set to gradually increase. When the touch-control wires111are located in both the wiring region LA and the driving circuit region VSR, the density of the touch-control wires111may gradually decrease along the first direction X. Therefore, as the opening areas of the second openings1032are set to gradually increase, the opening areas of the third openings1033may also gradually increase, which may not be described in detail herein.

For example, the display device may be any products with a display function, which include, but are not limited to, the following categories: televisions, notebook computers, desktop displays, tablet computers, digital cameras, mobile phones, smart bracelets, smart glasses, vehicle monitors, medical equipment, industrial control equipment, touch interactive terminals and the like.

FIG.15illustrates a schematic of a display device according to various embodiments of the present disclosure. A mobile phone may be taken as an example to schematically illustrate the display device of the present disclosure. The support films in the display device provided by the present disclosure may have the technical features described in any one of the above-mentioned embodiments. Therefore, the display device provided by the present disclosure may have the technical effects of the technical solutions in any one of the above-mentioned embodiments. The beneficial technical effects of the display device provided by the present disclosure may refer to the description in the above-mentioned embodiments, which may not be repeated in detail herein.

It should be noted that the above description may be a further detailed description of the present disclosure in conjunction with particular optional embodiments, and may not be considered that the actual implementation of the present disclosure is limited to these descriptions. For those skilled in the art, according to the technical field of the present disclosure, some simple deductions or substitutions may be made without departing from the concept of the present disclosure, which should be regarded as falling within the protection scope of the present disclosure.