Display Devices

Abstract

The present disclosure provides a display device, comprising: a substrate, comprising a display area and a non-display area, the display area surrounding the non-display area; a first conductor layer, arranged on the substrate; a second conductor layer, arranged on the substrate, wherein, in a top-view direction, the second conductor layer and the first conductor layer are interlaced at a position corresponding to the display area; a first insulating layer, arranged between the first conductor layer and the second conductor layer; a third conductor layer, arranged on the substrate and arranged corresponding to the non-display area; and a second insulating layer, arranged between the second conductor layer and the third conductor layer, wherein, in the top-view direction, the third conductor layer and the second conductor layer are interlaced at a position corresponding to the non-display area.

Description

[0001] This application is a divisional application of Chinese patent application CN201810158603.2 (“display device”) filed on February 22, 2018. Technical Field

[0002] The present disclosure relates to a display device, and in particular to a display device that can achieve a narrow frame requirement when there is a non-display area in a display panel or an opening in a substrate. Background Art

[0003] With the advancement of technology, electronic products are all pursuing the trend of being thinner and smaller to meet the needs of consumers. Display devices have also developed from cathode ray tubes to thin displays. Thin displays can be used in mobile phones, cameras, camcorders, notebook computers, mobile navigation devices, car dashboards, electronic watches, televisions, etc. In addition to developing thinner display devices, manufacturers also focus on narrow frame designs.

[0004] However, when there is a non-display area in the display panel or an opening in the substrate, circuits and components will be arranged around the non-display area or the opening, and often due to process limitations, the non-display area cannot achieve a narrow frame design and cannot meet consumer needs.

[0005] Therefore, there is an urgent need to develop a display device that can overcome the limitation of circuit design or achieve a narrow frame effect when the display panel contains a non-display area or the substrate contains an opening. Summary of the invention

[0006] The present disclosure provides a display device, comprising: a substrate, comprising a display area and a non-display area, the display area surrounding the non-display area; a first conductor layer, arranged on the substrate; a second conductor layer, arranged on the substrate, wherein, in a top-view direction, the second conductor layer and the first conductor layer are interlaced at a position corresponding to the display area; a first insulating layer, arranged between the first conductor layer and the second conductor layer; a third conductor layer, arranged on the substrate and arranged corresponding to the non-display area; and a second insulating layer, arranged between the second conductor layer and the third conductor layer, wherein, in the top-view direction, the third conductor layer and the second conductor layer are interlaced at a position corresponding to the non-display area.

[0007] The present disclosure further provides a display device, comprising: a substrate, comprising a display area and a non-display area adjacent to the display area; a first conductor layer, disposed on the substrate; a second conductor layer, disposed on the substrate, wherein, in a top-view direction, the second conductor layer and the first conductor layer are staggered at a position corresponding to the display area; a first insulating layer, disposed between the first conductor layer and the second conductor layer; a third conductor layer, disposed on the substrate and disposed corresponding to the non-display area, wherein the third conductor layer is electrically connected to the second conductor layer; and a second insulating layer, disposed between the second conductor layer and the third conductor layer, wherein the second insulating layer further comprises a hole, the hole is disposed corresponding to the non-display area, and the third conductor layer extends into the hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1A FIG. 1 is a top view of a portion of a display device according to an embodiment of the present disclosure.

[0009] Figure 1B for Figure 1A Section view of line segment M-M'.

[0010] Figure 1C It is a top view of a portion of a display device according to an embodiment of the present disclosure.

[0011] Figure 2A It is a top view of a portion of a display device according to an embodiment of the present disclosure.

[0012] Figure 2B for Figure 1C Section view of line segment N-N'.

[0013] Figure 3 A partial cross-sectional view of a display device according to an embodiment of the present disclosure.

[0014] Figure 4 It is a cross-sectional view of a portion of a display device according to an embodiment of the present disclosure.

[0015]

Explanation of symbols

[0016] 1 substrate

[0017] 11, 43 first conductor layer

[0018] 111 Second Line

[0019] 112 Third Line

[0020] 113 First scan line segment

[0021] 114 Second scanning line segment

[0022] 115 The third scanning line segment

[0023] 12, 44 first insulation layer

[0024] 121 First Hole

[0025] 13, 45 Second conductor layer

[0026] 131 Fourth Line

[0027] 132 Fifth Line

[0028] 133 First data segment

[0029] 134 Second data segment

[0030] 135 The third data segment

[0031] 14, 42 Second insulation layer

[0032] 141 Second Hole

[0033] 15, 41 Third conductor layer

[0034] 151 First Connection Line

[0035] 152 Second connection line

[0036] 16, 46 Third insulation layer

[0037] 21 First piercing

[0038] 22 Second piercing

[0039] 23 Third piercing

[0040] 24 Fourth piercing

[0041] 3 pixel unit

[0042] 5 The third hole

[0043] A Display area

[0044] B Non-display area

[0045] C Non-circuit area

[0046] D Opening

[0047] X, Y intersection

[0048] W Width

[0049] P First direction

[0050] Q Second direction DETAILED DESCRIPTION

[0051] The following describes the implementation of the present disclosure through specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified and changed in various ways according to different viewpoints and applications without departing from the spirit of the present invention.

[0052] Furthermore, the ordinal numbers used in the specification and claims, such as "first", "second", "third", etc., to modify the elements of the claims, do not themselves imply or represent any previous ordinal number of the requested element, nor do they represent the order of one requested element and another requested element, or the order in the manufacturing method. The use of these ordinals is only used to clearly distinguish a requested element with a certain name from another requested element with the same name.

[0053] Furthermore, positions mentioned in the specification and claims, such as “on,” “upper,” “above,” “under,” “lower,” or “below,” may refer to two elements being in direct contact or may refer to two elements being in indirect contact.

[0054] Furthermore, the features of the following embodiments of the present disclosure may be combined with each other to form another embodiment.

[0055] Example 1

[0056] Figure 1A It is a top view of a portion of a display device according to an embodiment of the present disclosure. Figure 1B for Figure 1A First, a substrate 1 is provided, the substrate 1 comprising a display area A and a non-display area B, a first metal layer (as a first conductor layer 11) is formed on the substrate 1 by photolithography or etching process, and a first insulating layer 12 is formed on the first conductor layer 11, and the above steps are repeated to sequentially form a second metal layer (as a second conductor layer 13) and a second insulating layer 14, then a third metal layer (as a third conductor layer 15) is formed on the second insulating layer 14, and then a third insulating layer 16 is formed, wherein the third conductor layer 15 comprises a first connecting line 151, the first insulating layer 12 comprises a first hole 121, the second insulating layer comprises a second hole 141, and the first conductor layer 11 and the first connecting line 151 extend into the first hole 121 and the second hole 141.

[0057] Here, the substrate 1 is a glass substrate, but the present disclosure is not limited thereto. The materials of the first conductor layer 11, the second conductor layer 13, and the third conductor layer 15 are metals, such as gold, silver, copper, aluminum, molybdenum, titanium, chromium, or alloys thereof, but the present disclosure is not limited thereto, and the materials of the first conductor layer 11, the second conductor layer 13, and the third conductor layer 15 can be the same or different from each other, as long as the sheet resistance impedance value of the first connection line 151 of the third conductor layer 15 divided by the sheet resistance impedance value of the first conductor layer 11 electrically connected to the first connection line 151 is greater than 0 and less than or equal to 10. In addition, the first conductor layer 11, the second conductor layer 13, and the third conductor layer 15 can be independently a single-layer or multi-layer structure as needed. The materials of the first insulating layer 12, the second insulating layer 14, and the third insulating layer 16 can be silicon oxide, silicon nitride, or a combination thereof, but the present disclosure is not limited thereto.

[0058] The display device of one embodiment of the present disclosure comprises: a substrate 1, comprising a display area A and a non-display area B; a first conductor layer 11, disposed on the substrate 1 and corresponding to the display area A; a second conductor layer 13, disposed on the substrate 1 and corresponding to the display area A, wherein in a top view direction, the second conductor layer 13 is staggered with the first conductor layer 11; a first insulating layer 12, disposed between the first conductor layer 11 and the second conductor layer 13; a third conductor layer 15, disposed on the substrate 1 On the non-display area B, and arranged corresponding to the non-display area B, the third conductor layer 15 includes a first connecting line 151; and a second insulating layer 14, which is arranged between the second conductor layer 13 and the third conductor layer 15, wherein the first conductor layer 11 is electrically connected to the first connecting line 151 of the third conductor layer 15, and the sheet resistance impedance value of the first connecting line 151 of the third conductor layer 15 divided by the sheet resistance impedance value of the first conductor layer 11 electrically connected to the first connecting line 151 is greater than 0 and less than or equal to 10. In this embodiment, the non-display area B can be surrounded by the display area A. However, in other embodiments, the non-display area B can be adjacent to the display area A, or the display area A is only adjacent to part of the non-display area B, depending on the design requirements. And the shape of the non-display area B is not limited, and can be rectangular, circular, polygonal or other irregular shapes. The first conductor layer 11, the second conductor layer 13 or the third conductor layer 15 can be wired along the shape of the non-display area B.

[0059] Here, the first conductor layer 11 is used as a scan line, and the second conductor layer 13 is used as a data line, but the present disclosure is not limited to this. The first conductor layer 11 can also be used as a data line, or the second conductor layer 13 can also be used as a scan line. When the non-display area B includes a non-circuit area C, and the non-circuit area C does not overlap with the first conductor layer 11, the second conductor layer 13, or the third conductor layer 15, because the scan line or the data line must bypass the non-circuit area C to transmit the signal, when the distance between the non-circuit area C and the display area A is too narrow, the adjacent scan lines or adjacent data lines are prone to short circuit; when the distance between the non-circuit area C and the display area A is too wide, the effect of narrow frame cannot be achieved. The present disclosure utilizes the third conductor layer 15, which is set in the non-display area B, and is electrically connected to the first conductor layer 11 through the first hole 121 and the second hole 141, so as to transmit the same signal within a limited distance without short circuit, so as to achieve the effect of narrow frame. In the present embodiment, the third conductor layer 15 is electrically connected to the first conductor layer 11 to transmit the signal of the scan line, but the present disclosure is not limited to this. In this embodiment, the non-circuit area C may be located at the center of the non-display area B and may be surrounded by the display area A. However, in other embodiments, the non-circuit area C may be adjacent to the display area A, or the non-circuit area C may only be adjacent to a portion of the non-display area B, depending on the design requirements. And the shape of the non-circuit area C is not limited, and may be a rectangle, a circle, a polygon or other irregular shapes. The first conductor layer 11, the second conductor layer 13 or the third conductor layer 15 may be wired along the shape of the non-circuit area C.

[0060] Figure 1C This is a top view of a partial display device of another embodiment of the present disclosure, wherein the first conductor layer 11 includes a second circuit 111 and a third circuit 112 that are electrically insulated, the second circuit 111 and the third circuit 112 are adjacent to and parallel to each other, and the second circuit 111 and the third circuit 112 extend along a first direction P, wherein the first connecting line 151 of the third conductor layer 15 is electrically connected to the second circuit 111, and the projection of the first connecting line 151 on the substrate 1 at least partially overlaps with the third circuit 112.

[0061] In another embodiment of the present disclosure, the substrate 1 may include an opening D, and the opening D is disposed corresponding to the non-display area B. The opening D does not overlap with the first conductor layer 11 , the second conductor layer 13 , or the third conductor layer 15 , and the opening D may penetrate the substrate 1 .

[0062] Here, the location of the non-display area B is not particularly limited, for example, it can be set at the center of the substrate 1, the edge of the substrate 1, or the corner of the substrate 1, but the present disclosure is not limited thereto. In one embodiment of the present disclosure, the display area A of the display device may include a plurality of pixel units 3, and the non-display area B is set between at least two of the pixel units 3. Preferably, the width of a pixel unit 3 is W, and the width of the non-display area B is greater than 2W.

[0063] In another embodiment of the present disclosure, Figure 1C As shown, the display area A is located at the periphery of the non-display area B, the first conductor layer 11 includes a first scan line segment 113, a second scan line segment 114 and a third scan line segment 115 extending along the first direction P, the first scan line segment 113 and the second scan line segment 114 are located on opposite sides of the non-display area B, the third scan line segment 115 is parallel to the first scan line segment 113, the first connecting line 151 of the third conductor layer 15 is electrically connected to the first scan line segment 113 and the second scan line segment 114, and in a top-view direction, the projection of the first connecting line 151 at least partially overlaps with the third scan line segment 115. The first insulating layer 12 includes a first through hole 21 (dashed line) and a second through hole 22 (dashed line). The first connection line 151 of the third conductive layer 15 is electrically connected to the first scan line segment 113 through the first through hole 21, and the first connection line 151 of the third conductive layer 15 is electrically connected to the second scan line segment 114 through the second through hole 22. In this embodiment, the first connection line 151 and the third scan line segment 115 have two overlapping portions, namely, intersections X, and the first connection line 151 and the third scan line segment 115 are electrically insulated at the intersections X. In this embodiment, the third conductor layer 15 and the first conductor layer 11 are not limited to being both made of metal materials. The first conductor layer 11 can be a metal material, and the third conductor layer 15 can be an oxidized metal material, such as ITO or IZO, or the third conductor layer 15 can be other conductive materials or metal materials that meet the design requirements. The present disclosure is not limited to this. As long as the spacing limit of the lines in the conductor layer can be reduced to achieve a narrow frame effect, it falls within the scope of the present disclosure.

[0064] Example 2

[0065] Figure 2A FIG. 1 is a top view of a portion of a display device according to another embodiment of the present disclosure. This embodiment is similar to Embodiment 1, except that this embodiment utilizes the third conductor layer 15 to be electrically connected to the second conductor layer 13 to transmit the data line signal, thereby achieving a narrow frame effect. Figure 2AAs shown, in the display device of this embodiment, the third conductor layer 15 includes a second connection line 152, the second conductor layer 13 is electrically connected to the second connection line 152 of the third conductor layer 15, and the sheet resistance impedance value of the second connection line 152 of the third conductor layer 15 divided by the sheet resistance impedance value of the second conductor layer 13 electrically connected to the second connection line 152 is greater than 0 and less than or equal to 10. In more detail, as Figure 2B As shown, Figure 2B for Figure 2A In the cross-sectional view along line segment NN′, the second connection line 152 of the third conductive layer 15 extends to the second hole 141 of the second insulating layer 14 and is electrically connected to the second conductive layer 13 .

[0066] In another embodiment of the present disclosure, the second conductor layer 13 includes a fourth circuit 131 and a fifth circuit 132 that are electrically insulated, and the fourth circuit 131 and the fifth circuit 132 are adjacent to and arranged in parallel, wherein the second connecting line 152 of the third conductor layer 15 is electrically connected to the fourth circuit 131, and the projection of the second connecting line 152 on the substrate 1 at least partially overlaps with the fifth circuit 132.

[0067] Here, the materials of the substrate 1, the first conductor layer 11, the second conductor layer 13, the third conductor layer 15, the first insulating layer 12, the second insulating layer 14, and the third insulating layer 16, the arrangement positions of the display area A and the non-display area B, etc. are as described in Embodiment 1, and thus will not be described again. Here, the first conductor layer 11 is used as a scan line, and the second conductor layer 13 is used as a data line, but the present disclosure is not limited thereto, and the first conductor layer 11 may also be used as a data line, or the second conductor layer 13 may also be used as a scan line.

[0068] In another embodiment of the present disclosure, Figure 2AAs shown, the display area A is located at the periphery of the non-display area B, the second conductive layer 13 includes a first data line segment 133, a second data line segment 134, and a third data line segment 135 extending along a second direction Q, the first data line segment 133 and the second data line segment 134 are located on opposite sides of the non-display area B, the third data line segment 135 is parallel to the first data line segment 133, the second connecting line 152 of the third conductive layer 15 is electrically connected to the first data line segment 133 and the second data line segment 134, and in a top-view direction, the projection of the second connecting line 152 at least partially overlaps with the third data line segment 135. The second insulating layer 14 includes a third through hole 23 (dashed line) and a fourth through hole 24 (dashed line). The second connection line 152 of the third conductor layer 15 is electrically connected to the first data line segment 133 through the third through hole 23, and the second connection line 152 of the third conductor layer 15 is electrically connected to the second data line segment 134 through the fourth through hole 24. In this embodiment, the second connection line 152 and the third data line segment 135 have two overlapping portions, namely, the crossing portion Y, and the second connection line 152 and the third data line segment 135 are electrically insulated at the crossing portion Y. In this embodiment, the third conductor layer 15 and the second conductor layer 13 are not limited to being made of metal materials. The second conductor layer can be a metal material, and the third conductor layer 15 can be an oxidized metal material, such as ITO or IZO, or the third conductor layer 15 can be other conductive materials or metal materials that meet the design requirements. The present disclosure is not limited to this. As long as the spacing limit of the wiring in the conductor layer can be reduced, or the spacing between the opening D and the display area A can be reduced, or a narrow frame effect can be achieved, it all falls within the scope of the present disclosure.

[0069] Example 3

[0070] Figure 3 1 is a partial cross-sectional view of a display device according to an embodiment of the present disclosure. This embodiment is similar to Embodiment 1, except that the first conductor layer 11 and the third conductor 15 can be electrically connected to each other by using the first conductor layer 11 and a portion of the second conductor layer 13 to be electrically connected, and the third conductor layer 15 and the portion of the second conductor layer 13 to be electrically connected, so as to transmit the same signal.

[0071] Example 4

[0072] Figure 4 FIG. 1 is a cross-sectional view of a portion of a display device according to another embodiment of the present disclosure. Figure 1A and Figure 4First, a substrate 1 is provided, the substrate comprising a display area A and a non-display area B, a third metal layer (as a third conductor layer 41) is formed in the non-display area B of the substrate by photolithography or etching process, and a second insulating layer 42 is formed on the third conductor layer 41, and the above steps are repeated to sequentially form a first metal layer (as a first conductor layer 43), a first insulating layer 44, a second metal layer (as a second conductor layer 45), and a third insulating layer 46, wherein the first conductor layer 43 is disposed between the first insulating layer 44 and the second insulating layer 42, and the first conductor layer 43 and the third conductor layer 41 are electrically connected to each other through a third hole 5. The present embodiment is similar to the first embodiment, and the only difference is that the third metal layer is formed first in the present embodiment, and then other stacked layers are sequentially formed, so it is not repeated here.

[0073] Here, the first conductor layer 43 is used as a scan line, and the second conductor layer 45 is used as a data line, but the present disclosure is not limited thereto, and the first conductor layer 43 can also be used as a data line, or the second conductor layer 45 can also be used as a scan line. The design of the third conductor layer 41 in this embodiment aims to reduce the spacing limit of the wiring in the conductor layer, or to reduce the spacing between the opening D and the display area A, or to achieve a narrow frame effect.

[0074] In summary, the present disclosure forms a third metal layer in the non-display area and electrically connects the third metal layer to the first metal layer or the second metal layer to transmit the same signal, so that the display device can achieve a narrow frame effect. The designs of the above embodiments can be mixed and matched for use, and are not limited here.

[0075] The display device disclosed herein can be applied to various types of display devices, for example, including organic light-emitting diodes (OLED), quantum dots (QD), fluorescence molecules (fluorescence molecules), phosphor molecules (phosphor), light-emitting diodes (LED), micro light-emitting diodes (micro LED) or other display media. In addition, it can also be applied to touch display devices equipped with touch panels. Furthermore, it can be applied to non-curved, curved or flexible display devices or touch display devices.

[0076] The above specific embodiments are to be construed as merely illustrative, and not limitative of the remainder of the disclosure in any way whatsoever.

Claims

1. A display device, characterized in that: Include: A substrate comprising a display area and a non-display area adjacent to the display area; a first conductor layer, disposed on the substrate; a second conductor layer disposed on the substrate, wherein in a top view direction, the second conductor layer and the first conductor layer are interlaced at a position corresponding to the display area; a first insulating layer, disposed between the first conductive layer and the second conductive layer; a third conductor layer disposed on the substrate and corresponding to the non-display area, wherein the third conductor layer is electrically connected to the second conductor layer; and a second insulating layer disposed between the second conductive layer and the third conductive layer, wherein the second insulating layer further comprises a hole, the hole is disposed corresponding to the non-display area, and the third conductive layer extends into the hole, In which, in the top-down direction, the third conductor layer has a projection on the substrate, wherein in the non-display area corresponding to the non-display area, a portion of the projection at least partially overlaps with the projection of the first conductor layer on the substrate, and another portion of the projection at least partially overlaps with the projection of the second conductor layer on the substrate.

2. The display device according to claim 1, characterized in that The third conductor layer includes metal material or oxidized metal material.

3. The display device according to claim 1, characterized in that The invention also comprises a third insulating layer, wherein the third conductor layer is arranged between the third insulating layer and the second insulating layer.

4. The display device according to claim 1, characterized in that The third conductor layer is electrically connected to the second conductor layer through the hole.

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